Some standard content:
ICS 65.040.10
Machinery Industry Standard of the People's Republic of China
JB/T7880-1999
idtISo3918:1996
．Terms
Milking equipment
Milking machine installations Vocabulary1999-08-06Promulgated
National Machinery Industry Bureau
2000-01-01Implementation
JB/T7880-1999
This standard is a revision of JB/T7880--95 "Milking equipment and milk equipment terms".
Terms and terms". This standard is equivalent to ISO3918:1996. Compared with JB/T7880-95, the main technical content of this standard has changed as follows: 46 terms have been added and detailed classification has been carried out; - Appendix A and Appendix B in the revised standard have been deleted. This standard replaces JB/T7880-95 from the date of implementation. This standard is proposed and coordinated by the National Agricultural Machinery Standardization Technical Committee. This standard is drafted by the Chinese Academy of Agricultural Mechanization Sciences. The drafters of this standard are Wu Xifei, Liu Yanbin and Zhao Junxia. JB/T7880-1999
ISO Foreword
ISO (International Organization for Standardization) is a worldwide joint organization of national standards bodies (ISO member bodies). The formulation of international standards is usually carried out by ISO's technical committees. Each member body interested in the project of an established technical committee has the right to participate in the committee. International organizations, governments and non-governmental organizations that are ISO liaison members can also participate in this work. ISO and the International Electrotechnical Commission (IEC) work closely in all areas of electrotechnical standards. Draft International Standards adopted by a technical committee are circulated to its member bodies for voting. Publication as an International Standard requires an approval vote of at least 75 % of the member bodies.
International Standard ISO 3918 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry. This second edition replaces the first edition (ISO 3918:1977) as a result of technical revision, which also abolishes Annex A of this standard as an informative annex.
Machinery Industry Standard of the People's Republic of China
Milking equipment
Milking machine installations
Vocabulary
JB/T 7880-1999
idt ISO 3918 : 1996
Replaces JB/T 7880—95
This standard defines terms for the design, manufacture and use of milking equipment for the following livestock: cows, buffaloes, sheep, goats or other mammals used for milk production.
The terms defined in this standard are intended for use in the research, industry management, manufacturing and use of milking equipment. 2 General terms
2.1 Milking machine
A complete set of mechanical equipment used for milking, usually including a vacuum and pulsation system (4), one or more milking units (2.2》) and other components.
2.2 Milking unit
milking machine
Components of a milking machine (2.1), including the components necessary for milking a head of livestock. In a milking machine, multiple sets of such units can be used to milk multiple livestock at the same time. Note: For example. A milking unit may include a milking cup set (5.1), a long milk pipe (6.1), a long pulsation pipe (4.15) and a pulsator (4.11). In addition, there may be a milking bucket or measuring bottle (6.8) or a milk meter (7.1) and other 2.4 Tube
A rigid pipe (e.g. a steel pipe, a glass pipe or a rigid plastic pipe) that is fixed in place in the equipment. Note: The terms pipe (2.3) and tube (2.4) are modified in the following ways because of their use or application: Vacuum: modifies any dedicated vacuum pipe (2.3) during milking that is usually, but not necessarily, below atmospheric pressure [e.g. main vacuum pipe (4.2), pulsating vacuum pipe (4.13)].
Pulsating: modifies various dedicated pipes (2.3) and tubes (2.4) that carry cyclical changes in pressure [e.g. long pulsating pipe (4.15), short pulsating pipe (5.2.5)]. Milk: modifies any common pipe (2.3) for milk or milk gas during milking .3) and pipe (2.4》 [e.g. milk pipe (6.9), milking pipe (6.6) long milk pipe (6.1))
-milking: describe the function of the vacuum (9.1) system or pipe (2.3) [e.g. milking vacuum pipe (4.6)] 2.5 upstream
upstream
in the opposite direction of flow.
2.6 downstream
in the direction of flow.
Approved by the State Machinery Industry Bureau on August 6, 1999 and implemented on January 1, 2000
JB/T7880-1999
3 Type of milking machine Type of milking machine Bucket milking machine bucket milking machine ine3.1
A milking machine (2.1) with one or two milking cups (5.1) and milk directly into a portable bucket connected to a vacuum (9.1) system. See Figure 1.
3.2Direct-to-canmilkingmachineA milking machine (2.1) with milk directly into a portable tank that can receive and hold milk from several animals. See Figure 1.
Pipelinemilkingmachine3.3
A milking machine (2.1) with milk directly into a pipeline that has the dual function of providing vacuum (9.1) and conveying milk into a collection bottle (6.10). See Figure 2. 3.4 Recorder milking machine Weigh jar milking machine A milking machine in which the milk squeezed out from the milking cup group (5.1) flows into the measuring bottle (6.8), which is connected to the milking vacuum pipe (4.6), so that the bottle is in a vacuum state.
Note: When necessary, the milk in the measuring bottle (6.8) can enter the milk collecting bottle (6.10) or the milk collecting tank through the milk delivery pipe (6.9), see Figure 3 3.5 Independent air and milk transport milking machine An independent air and milk transport milking machine A milking machine in which the milk and gas are separated in or near the milking cup group (5.1) and then transported separately. See Figure 4. 4 Vacuum and pulsation systems Vacuum and pulsation systems 4.1 Vacuum pump
vacuum pump
An air pump that creates a vacuum (9.1) in the system. 4.2 Main vacuum pipeline mainairline
The vertical vacuum pipeline between the vacuum pump (4.1) and the gas-liquid separator (4.5). Interceptor
A container installed in the main vacuum pipeline (4.2), located upstream of the vacuum pump (4.1), to prevent liquid or debris from entering the vacuum pipeline.
4.4 Distribution tank
A tank or chamber installed in the main vacuum pipeline (4.2), located between the vacuum pump (4.1) [or the isolation tank (4.3)] and the gas-liquid separator (4.5), serving as a tapping point for other pipelines. 4.5 Sanitary trap
A tank between the milking system and the vacuum (9.1) system, used to limit the mutual movement of liquid and other dirt between the two systems. 4.6 Milking vacuum line [metering milking machine (3.4) or milk-gas separation milking machine (3.5)] Pipeline (2.3) between the gas-liquid separator (4.5) and the milking unit (2.2)
Note: This pipeline (2.3) provides milking vacuum (9.1) to the milking unit (2.2) and can also be used as part of the cleaning circuit. Regulator, controller
Automatic device used to maintain the stability of the vacuum (9.1) in the milking system. 2
Vacuum gauge
JB/T7880—1999
Indicates the vacuum (9.1) of the milking machine (2.1).1) Meter of degree, pressure relative to atmospheric pressure. 4.9
vacuumtube
Hose connecting the milking bucket or milking tank to the vacuum pipeline. vacuumtap
Vacuum interface
Valve connecting the milking unit (2.2) or other vacuum-operated device to the vacuum (9.1) system. Pulsator interface stallcock
Valve that realizes the daily fast on-off function between the pulsator (4.11) and the pulsator vacuum pipeline (4.13). Pulsator
pulsator
Device that generates periodic pressure changes.
PulsatorcontrollerA device that drives the pulsator (4.11), which can be in the form of a combination with a single pulsator (self-source pulsator). It can also be a system that controls several pulsators.
pulsatorairline
Pulsator vacuum pipeline
Pipeline (2.3) connecting the main vacuum pipeline (4.2) and the pulsator (4.11). Bridge receiverairline
Pipeline (2.3) connecting the gas-liquid separator (4.5) and the milk collecting bottle (6.10) long pulse tube longpulsetube
Hose connecting the milk collecting bottle (5.3) and the pulsator (4.11). 5 Milking cup cluster
Milking cup cluster
Component consisting of the milk collecting bottle (5.3) and the milk cup (5.2). 5.2 Teatcup
Component consisting of a teatcup shell (5.2.1), a liner (5.2.2), a short pulsation tube (5.2.5) and possibly a separate short milk tube (5.2.3) and a connector or sight tube. See Figure 5. 5.2.1 - Teatcup shell
Rigid shell containing a liner (5.2.2).
Liner
Flexible tube with a teatcup mouth and a tube body, possibly with a short milk tube (5.2.3) integrated into it. Short milk tube
Connecting tube (2.4) between the milk collector (5.3) and the tube body of the liner (5.2.2), a connector or sight tube. Pulsation chamber, inter-wall chamber pulsation chamber 5.2.4
The annular cavity between the inner sleeve (5.2.2) and the outer shell (5.2.1) of the milk cup. Short pulse tube short pulse tube
The connecting tube (2.4) between the pulsation chamber (5.2.4) and the milk collector (5.3) Milk collector
JB/T7880-1999
A container with a plurality of manifolds, which allows the milk cups (5.2) to be installed at intervals to form a milking cup group (5.1), and connects the milk cups to the long milk tube (6.1) and the long pulsation tube (4.15).
5.4 Air intake hole airvent, air admission hole It allows a portion of air to enter the milking cup group (5.1) through a calibrated small hole. Automatic shut-off valve automaticshut-offvalve5.5
A valve on the milking unit that shuts off the vacuum (9.1) when the milking cup group (5.1) falls off or is kicked off. Milking system Milksystem
6.1 Long milk tube longmilktube, milkhose Connecting tube (2.4) that sends milk from the milk collector (5.3). 6.2 Milking vacuum tube milkingvacuumtube Connecting tube (2.4) between the milk collector (5.3) or the metering bottle (6.8) and the milking vacuum pipe (4.6), which provides vacuum (9.1) to the milk collector but does not transport milk.
Milking connection milkcock, milkinletvalve6.3
A self-sealing valve that realizes the daily quick on-off function between the milking unit (2.2) and the milking pipe (6.6). 6.4 Milk inlet milkinlet
A fixed outlet on a milking pipe (6.6), a measuring bottle (6.8), a milking bucket, a milking tank or other equipment, used to connect a long milk pipe (6.1): 6.5 Receiver milkinlet A fixed outlet on a milk collecting bottle (6.10), used to connect a milking pipe (6.6) or a milk delivery pipe (6.9) to a milk collecting bottle (6.10). 6.6 Milkline milkline
A pipe (2.3) for transporting milk and gas during milking, which has the dual functions of providing a milking vacuum (9.1) and delivering milk to a milk collecting bottle (6.10).
6.6.1 Looped milkline A milking pipe (6.6) connected to a milk collecting bottle (6.10) via two full-bore joints to form a closed loop. 6.6.z Dead-ended milkline A milking pipe (6.6) whose distal end is closed with a cap or plug and whose proximal end is connected to a milk collecting bottle (6.10) with a full-diameter connector. 6.7 Milking system || tt || 6.7.1 High-level milking system In this system, the distance between the milk inlet (6.4) on the milking pipe (6.6) or the metering bottle (6.8) and the surface of the cow bed is greater than 1.25 m. 6.7.2 Mid-level milking system In this system, the distance between the milk inlet (6.4) on the milking bucket (or milking tank), milking pipe (6.6) or metering bottle (6.8) and the surface of the cow bed is between 0 and 1.25 m. 6.8 Recorder jar, wcigh jar A container with scales that can receive, store and measure the entire milk output of a single animal. 6.9 Milk transfer line
A pipe that transfers milk from a metering bottle (6.8) (see Figure 3) or a long milk tube (6.1) (see Figure 4) to a milk collecting bottle (6.10) or a milk collecting tank in a vacuum state (9.1).
6.10 Milk collecting bottle receiver
JB/T78801999
A container that receives milk from one or more milking pipes (6.6) or milk transfer pipes (6.9) and provides it to a milk releaser (6.11) milk release pump (6.11.1) or a milk collecting tank in a vacuum state (9.1). 6.11 Milk releaser
A device that transfers milk from a vacuum state to an atmospheric pressure state. 6.11.1 Milk releaser milk pump A pump that transfers milk from a vacuum state to an atmospheric pressure state. Delivery line
The pipe through which milk flows from the milk delivery device (6.11) to the milk collection tank or storage tank. 7 Accessories
7.1 Meter
milkmeter
A device installed between the milking cup group (5.1) and the milking pipe (6.6) for measuring the total milk output of a single animal. 7.2 Milk flow indicator milkflowindicator A device usually installed on the long milk pipe (6.1) for observing milk flow. 7.3 Milk flow sensor milkflowsensor
A device usually installed on the long milk pipe (6.1) for sensing signals of one or more predetermined milk flow levels. 7.3.1 Initial delay initialdelaytime refers to the delay time (7.3.3) during the initial period of milking. The milk flow sensor (7.3) does not control the operation of the automatic cluster removal device (7.4) or other preset variables in the milking vacuum or pulsation characteristics. 7.3.2 Switching point switchpointwwW.bzxz.Net
The value of the milk flow rate determined by the manufacturer under the test conditions at which the delay time (7.3.3) starts, i.e. the milk flow sensor (7.3) triggers other devices.
7.3.3 Delay time delaytime
The time from the switching point (7.3.2) to the removal of the milking cluster (5.1) or the start of any preset change in the function of the milking unit (2.2).
7.4 Automatic cluster removal device automaticclusterremover A device that automatically cuts off the milking vacuum (9.1) to the milking cluster (5.1) and removes it according to milk flow and/or time. 8 Cleaning and milk cooling equipment 8.1 Bulk milk tank || TT || Sanitary milk storage tank, usually installed in the milk room, used for cooling and/or storing milk, 8.2 Cleaning in place, CIP The ability to clean and disinfect the milking system by circulating appropriate solutions without disassembly. 8.3 Jetterassembly
A device that establishes a connection between the cleaning pipe (8.4) or the milking vacuum pipe (4.6) and the water distribution pipe consisting of a socket or plug, to which the milk cups (5.2) are plugged during cleaning. 8.4 Washline
JB/T7880-1999
A pipe (2.3) that transports cleaning and disinfecting solutions from the cleaning tank or water heater to the milking unit (2.2), milking pipe (6.6) or milking vacuum pipe (4.6) during the cleaning process. Performance characteristics
9.1 Vacuum
Any pressure below atmospheric pressure. Expressed as a difference below the ambient atmospheric pressure. For example: Under the condition of ambient atmospheric pressure of 103 kPa, a vacuum of 50 kPa represents an absolute pressure of 53 kPa. 9.1.1 Nominal vacuum nominalvacuum
The level of vacuum (9.1) at certain points specified by the manufacturer or installer of the milking machine (2.1). NOTE The points of conventional nominal vacuum (9.1.1) are as follows: a) near the regulator (4.7) on the vacuum line in bucket milking machines (3.1) and direct-in-tank milking machines (3.2); b) at the milk collection bottle (6.10) in pipeline milking machines (3.3); c) on the milking vacuum line (4.6) in metering milking machines (3.4). 9.1.2 T.workingvacuum
The average vacuum (9.1.3) measured at the specified test points under specified test conditions 9.1.3 Mean vacuum
meanvacuum
The arithmetic mean of all vacuum (9.1) values recorded by the automatic data acquisition device. Note: When a curve recorder is used, the mean vacuum is the area under the vacuum curve divided by the measurement recording time. vacuumdrop
Vacuum drop
The difference in vacuum (9.1) between any two points in the system, obtained by measuring the difference in the mean vacuum (9.1.3) by installing a differential sensor or a gas meter between the two points.
Linervacuum
The vacuum (9.1) at the nipple at a specified liquid and gas flow rate. 9.2 Freeair
Air at ambient temperature and atmospheric pressure.
Expandedair
Air at a given vacuum at ambient temperature. 9.4
Vacuum pump pumping rate
Kvacuumpumpcapacity
When the vacuum pump has reached the operating temperature and is running at a specific speed, and the inlet vacuum (9.1) degree is at a specific value, the ability of the vacuum pump to move air.
Note: The vacuum pump pumping rate is expressed as the volume of free air moved per minute. See Figure 6: 9.5 Effective reserve refers to a certain amount of air flow that, when allowed to enter the system from the following points, may result in a vacuum drop (9.1.4) of 2 kPa measured at A and its vicinity (see Figures 1, 2 and 3), when all milking units (2.2) are blocked: the milk collecting bottle (6.10) and its vicinity of the pipeline milking machine (3.3); the gas-liquid separator (4.5) and its vicinity of the metering milking machine (3.4); the vacuum pipe 6 of the bucket milking machine (3.1) or the direct tank milking machine (3.2)
JB/T7880-1999
Note: This is an indicator of the available air reserve. During the milking period, in the event of air leakage from the milking cup group (5.1), it represents the actual 1: The amount of air available to maintain the direct vacuum (9.1) stable within ±2 kPa. .It is generally believed that a 2 kPa air drop (9.1.4) has little or no effect on milking performance and is sufficient to activate the regulator (4.7). See Figure 6, 9.6 Air demand for cleaning refers to the air flow that can be allowed to enter the system from the following points during cleaning: the milk collecting bottle (6.10) and its vicinity of the pipeline milking machine (3.3); the gas-liquid separator (4.5) and its vicinity of the metering milking machine (3.4). At this time, the vacuum drop (9.1.4) can be stabilized within a specific range. 9.7 Actual reserve
manual
reserve
refers to an air flow of a certain size. Except that the air flow through the regulator (4.7) is also cut off, the other measurement positions and conditions are the same as the effective reserve (9.5). See Figure 6.9.8 Regulator leakage regulatorleakage The amount of air that still leaks from the regulator when the vacuum drop (9.1.4) at the sensing point of the regulator reaches 2 kPa9.9 Regulation loss regulationloss
The difference between the actual reserve (9.7) and the effective reserve (9.5). See Figure 6. Note: This is the amount of air that flows through the regulator when it is nominally closed, measured at the most effective reserve (9.5). 9.10. Regulator sensitivity
regulator sensitivity
The difference between the working vacuum (9.1.2) when no milking units are connected and when all milking units are connected and operating, but the inner sleeves (5.2.2) are all plugged. See Figure 6.
Teat cup plug teatcupplug
A plug that imitates a domestic teat, used to close the mouth of the teat cup (5.2) during testing. pulsation
The cyclic opening and closing of the sleeve (5.2.2). 9.12.1 Alternate pulsation The pulsation characteristic is that the periodic movement of two sleeves (5.2.2) in the milking cup group alternates with the movement of the other two sleeves, or in a milking cup group with only two teat cups, such as a sheep or goat milking machine, the periodic movement of one sleeve alternates with the movement of the other sleeve.
Synchronous pulsation9.12.2
The pulsation characteristic is that the periodic movement of all sleeves in the milking cup group is synchronized. Pulsation cycle
The complete sequence of movement of the sleeves.
Pulsation rate
The number of pulsation cycles (9.12.3) per minute. Pulsation ratiopulsationratio
The ratio of the time that the inner sleeve is open for more than half of the time to the time of the entire pulsation cycle (9.12.3). maximumpulsationchambervacuum9.12.6
Pulsation chamber maximum vacuum
The maximum average vacuum in the pulsation chamber (5.2.4) of the teat cup (5.2) over a period of 100 ms in a pulsation cycle (9.12.3). 9.12.7milking-rest ratiomilk-restratioJB/T7880—1999
The ratio of the time that the teat can produce milk (milking beat) to the time that the teat stops producing milk (rest beat) due to the inner sleeve (5.2.2) in a pulsation cycle (9.12.3). NOTE: This ratio is usually expressed as the ratio of two numbers, the sum of which equals 100 (e.g. 65:35). Pulsator ratio pulsatorratio
The ratio of the sum of the vacuum increase phase (9.1) and the maximum vacuum phase to the total cycle time of the vacuum in the pulsation chamber (5.2.4). Note: The pulsator ratio is expressed as a percentage determined by the following formula: t, +t,
t, +t, +t, +t,
×100%
Where: 1-the time length of phase a (vacuum increase phase, see Figure 7). At this time, the vacuum (9.1) in the pulsation chamber (5.2.4) of the milk cup (5.2) increases from +4kPa to the maximum vacuum of the pulsation chamber -4kPa. t—the length of time of phase b (maximum vacuum phase, see Figure 7). At this time, the vacuum in the pulsation chamber of the milk cup is higher than the maximum vacuum of the pulsation chamber -4kPa. The length of time of phase tc (vacuum drop phase, see Figure 7). At this time, the vacuum drops from the maximum vacuum of the pulsation chamber -4kPa to +4kPa: t—the length of time of phase d (minimum vacuum phase). At this time, the vacuum in the pulsation chamber is between +4kPa and atmospheric pressure, 4 asymmetry limping
A value expressed in percentage, indicating the accidental difference between the two pulsation ratios (9.12.5) in the alternating pulsator (4.11). 9.15
effectivevolumeeffectivevolume
[Isolation tank (4.3) or gas-liquid separator (4.5)]. Expressed as the amount of water in a component before the automatic shut-off device is actuated, as in the case of a performance test to determine the liquid and gas flow rates through a component when the automatic shut-off valve (5.5) is closed. Effective volume effective volume
[milking bucket, milking can or milk collecting bottle (6.10)] The internal volume of a component when the milk outlet is plugged and water is added to the height of the lowest milk inlet or gas inlet when the component is installed in the normal working position. Effective length of liner 9.17
The distance from the upper surface of the opening of the liner (5.2.2) to the lowest point of contact between the two inner liner walls when the liner (5.2.2) is installed on the outer shell of the milk cup (5.2.1) and is flattened by a specific pressure difference.
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