JB/T 8577-1997 Technical requirements for water radiators for internal combustion engines
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T 8577.-1997
Technical Conditions for Water Radiators of Internal Combustion Engines
Issued on 1997-0620
Ministry of Machinery Industry of the People's Republic of China
Implemented on 1998-01-01
Appendix A and Appendix B of this standard are both appendices of the standard. This standard is proposed and managed by the National Technical Committee for Standardization of Internal Combustion Engines. The drafting party of this standard is Shanghai Internal Combustion Engine Research Institute of the Ministry of Machinery Industry, Yangzhou Water Tank. The authors of this standard are Chen Daneng, Li Jiuzhang, Li Duan, Bao Genzai. —Scope
Machinery Industry Standard of the People's Republic of China
Technical Specifications for Water Radiators for Internal Combustion Engines
JB/T85771997bZxz.net
This standard specifies the technical requirements, test methods, inspection rules and marking, packaging and transportation of water radiators for internal combustion engines. This standard is applicable to tubular and sectional water radiators for internal combustion engines (referred to as "water radiators"). 2 Referenced Standards
The provisions contained in the following standards shall constitute the provisions of this standard through reference in this standard. This standard is valid for all versions when it is in use: All standards will be broken, and all parties using this standard will discuss the possibility of using the following standard stock new version, G2837 Zheng approved according to the inspection and rescue plan and light extraction sequence and extraction half table (Daochuan ten diagnostic follow-up inspection change) 3 Dingan
This standard note is adopted again to fill in the meaning,
3.1 with the value
change the heat core windward side of the good,
3.2 technical channel surface! S.
water flow sensitive heat core internal channel drum area. 3.3 The wind speed G
is the product of the flow rate of the cooling air injected into the radiator and the air density, G=(V,S)0
, which is: G
, measured wind speed ks
V,-.. The air density is measured according to the intensity, m/s:
S. Standard wind speed m
, air density, kg
4 Technical requirements
1.1 The heat collector products should be manufactured in accordance with the product drawings and technical documents. 4.2 Materials
2. The materials used for the heat pipes, heat plates (belts), water chambers and other parts of the heat exchanger should comply with the specifications of the product drawings. 4.2.2 The materials used for the heat exchanger should have a certain resistance to water and should be treated with anti-separation. 1. The heat dissipation can be achieved by passing compressed air with a pressure of 10 nkPa inside the machine. 4.4 When the non-energy
heat collector is filled with clean water for 50 hours, the speed of 40m/” is measured, and the test piece is continuously moved up and down by 12℃. It is not allowed to control the damage of the parts.
Approved by the Ministry of Machinery Industry on June 20, 1997
19980 implementation
4. For the variable ring
JB/T8577I997
microheater is filled with medium, and the medium is opened from below 25Pa to the specified force, and then below 25kFa is judged to be lowered by the goods. The temperature of the medium is raised and maintained, and the temperature is lowered by 6 cycles: 45.1 The temperature of the medium is raised from below 25kP to 70kP, and then maintained to below 25kF for 15n cycles.
4.5.2 The force is 25kF a rises to 124kPa below. After being maintained, it returns to below 25kFa for one cycle. Chain: 150 cycles.
4.5.3 Repeat the specifications of 4.5.1 and 4.5.3 in sequence for a total of not less than 20,000 cycles. The test piece is not allowed to have any gradual, detached or damaged parts.
4.G auxiliary heat shock component can
transfer hot water and cold water alternately through the radiator quickly. The pressure drop through the radiator is required to be Pa2kPe: first let the hot water pass through the micro-point device directly to the water outlet of the radiator. The water quality of the radiator is not good. The water outlet of the radiator is cold water. The temperature of the radiator outlet is required to be less than 100℃: a total of 1CC cycle is carried out. The test piece is not allowed to have any sludge, desoldering or parts damage. r95±2℃
-80℃
4. Thermal performance and air resistance
The thermal performance and air resistance of copper heat sinks shall comply with the requirements of Table 1; the heat generation of steel heat sinks or heat sinks shall comply with the requirements of Table 2.
The number of heat sinks shall not exceed 1% of the total number of heat pipes. 4.9 The ratio of heat sink (sheets) to heat pipes shall not be less than 6%. 4. The difference in length between the two diagonals of the heat sink shall be less than or equal to 30 cm. The difference in length between the two diagonals shall be less than or equal to 3 mm: the difference in diagonal length shall be greater than 60 cm: the difference in diagonal length shall be less than or equal to 5 cm. 4.11 The number of heat sinks shall meet the requirements of the sample, and the total number of heat sinks shall not exceed 1 of the total number of heat sinks specified in the sample. : The peak number of the heat wave of the set of acid heat sinks shall comply with the requirements of the drawings. 4.12 The distance between the heat sinks or the heat sinks of the tube-type heat sink shall be within 1.2mm. It is not allowed to combine the broken pieces together. The peak of the tube-type heat sink shall be within 1.5mm. 4.13 The heat sink (belt) at the large surface of the heat sink is not allowed to have winding or reverse. %.14 The heat sink (belt) at the two large surfaces shall not have a difference greater than: mm. 4.15 The heat sink (belt) at the two large surfaces shall not have a difference greater than: mm. 4.16 The heat sink shall be assembled only in accordance with the specifications of the product. 4.17 The compound heat sink shall meet the requirements of the product drawings. 4.18 The dimensions of the water inlet and outlet of the radiator shall comply with the technical requirements of the product model. 4.19 The radiator joints shall not have obvious material accumulation. 4.2 There shall be no loose firmware residue inside the core. 4.21 The outer surface of the radiator shall be clean before repair. The surface with acid and rust shall be checked. 4.22 The outer surface of the radiator shall be carefully observed and there shall be no delamination. 1
Jingreshan
A-3-55r-65
11-3-120--.30
ti-4-132
F-4-153
A-4-112
S-1-022
B/C-4255·282
L-4-35
JAT8577-1997
Production quality tube type micro-heater heat dissipation performance standard global you
: heat sheet
3. 5--3. 2
3. 2--3. 2
2 72-2.31
Region area
C. 20--C.22
G.12--0. 23
C.29-C 22
13--14
13--14
31~·40
Assessment of workmanship
resistance to class
keit*?
Note: The heat-resistant class can be divided into four categories according to the thickness of the three dimensions of the plate. Table 2: A-15. 5X2.1 or 18.x3.5: 1-1x2, 2 ± 18.7x2. 2( -14×2. 5 or 11. 7×2. 5; D12. 7x3. 4. 13x2 or 14 ×:. 6. The quality of the table has the heat dissipation of the heat sink can also be pointed out
Core type·teaching·transmission
C-2-61
C-2-61
C : se
t: 2 192
C3 a21
C-3-1=4
C-3-1-17
[:-4 13n
r-4-15:
Yuxudong
Heat absorption
4. 5-. + 3
....... .
kg:t*-:1
Water flow check
Water lake blue
Performance determination
Heating! Air output
Energy standard
Heating quality
Wind injection panel
Source-effect root model
D-4-152
C-1-155
D-4-260
C-4-272
A-1·240
5 Test method
5.1 Tightness test
[B/T8577
Heating surface
Xiao nuclear working condition
Measurement wind speed
sg/(mi .s)
Water flow
Performance index
Acid heat measurement
On the uniformity test bench, immerse the heater assembly in the water grid and introduce dry air into the heater according to the provisions of 1.3. No bubbles should appear for 1mm.
5.2 The alternating cycle test and thermal shock test are carried out on the special test bench according to the installation method in use. The alternating cycle test is abandoned and the thermal shock test is abandoned. During the test, it is considered that the base part is at the bottom. The sealing test is used instead. If the air is continuously present, it is considered that the test port is leaking and fails. If a burst or crack is found during the test, the Ministry believes that the test is valid. 5.3 Determination of the distance between the heat sink or the micro-peak The heat sink is located in the upper and lower third heat sink (or the sixth peak) and the left and right first heat pipe. The measured distance may be within the range of the measurement. For the micro-heat sink, the length of the five micro-heat sinks is measured, and the average is taken as the measured distance. The length of the five peaks is measured by the front and rear heat sinks, and the average is taken as the measured peak. 5.4 The length of the heat sink is measured at the intersection of the two main main products on the left and right first heat pipes. Use a vertical ruler or tape measure to measure the length of the line. 5.5 Test method for heat sink performance 5.5.1 Test piece a) The test piece is a heat sink product. h) The water used for the test cooling must be clean and must not contain gas powder, rust or other debris. ) This standard stipulates that the suction test method should be used. The test sample should be short. During the test, the temperature of the inlet area should not exceed the main temperature. The test device must be subject to technical supervision of no less than provincial level. The test equipment must be regularly inspected and controlled according to the regulations of local technical supervision and control departments. 5.5.2 Measurement accuracy a) The accuracy of air volume measurement is 1.1.5%, b) The accuracy of water flow measurement is 1.55%, e) The accuracy of differential measurement is ±0.4%, 5.5.3 Test method 5. 5.3.1 Preparation before test JB/T 8577190T 3) After the test piece is installed on the test bench, check the connection between the test piece and the air conditioner. They should be unobstructed and properly lubricated. 1) Before the test, turn on the hot water pump, the air filter, adjust the air flow, and when the water inlet temperature reaches the specified value, remove the air in the water tread. Wait until the working temperature is stable before the test can be carried out. 5.5.3.2 Test specification
) During the test, the air temperature is the difference between the atmospheric temperature and the liquid-gas total humidity of 0℃! 1: Each test point is a temperature control system and a passive vehicle per minute force is more than 0.2,
b) Test drive flow and according to the current rot in Table 1.2: 1) Test air volume: %~12 of the air flow specified in Table 1 and Table 3. Take six working points (legal age point 19.5.3. 3 Test sequence
According to the regulations in Table 2, the stable water flow rate is within the range specified in 5.5.1.2, the outlet temperature is within the range specified in 5.5.3.2, and the natural fluctuation of air volume and water volume is within 7% of the set values: the inlet water temperature, water difference or outlet humidity, water difference, average inlet humidity or humidity difference with the set value, and the technical data, wind speed, etc. Take three consecutive measurements for each group of effective points, and take the average value of the service data as the measured value. Calculate the expected error. When the value is given, the new standard operating conditions should be tested again. The straight line is not smaller than the value, etc. to a given value. After adjustment, change the wind speed and change the working condition to the next stable position to obtain the effect of each small area. According to this method, after the number of tests under each wind speed base is completed, 5.5.3.4 test data shall be recorded and adjusted according to the provisions of the appendix of the standard 1. 5.6 Change the heat window blocking number of control
to observe whether the heat pipe is blocked by visual transmission. It is believed that the heat pipe can be seen in the heat pipe when the standard stops. 5.7 The storage rate is full
5.7, close the gear
before the sample is pressed The six values are based on the third sensitivity ridge (excluding the partition tube) and the sixth selection of the lower rate of heat rise in the area formed by the left and right cases. Take 5 heat sinks as the principle, and each heat sink contains 1 elastic part.
Thank you for the numbering of the sections. After the inspection, the measured unit will be kept for 3 months before being processed. 5. The actual length of the sample is determined by the actual length of the sample. The engineer indicates the heat dissipation product (with 1 welding flow length left on the sample: the first piece of heat dissipation tube has two small marks on the white surface, which is difficult to measure accurately. To make the measurement convenient, there is a few marks at the end. The spot welding mark is considered as a bad mark length, and the length of the mark is not recorded in the sequence. The actual length of the end face is considered to be zero. 5.7.3 Calculation method of the integration rate
The integration rate of the plate-type heat exchanger can be the sum of the actual good connection length of the plate-type heat exchanger
The sum of the actual good connection length
The acoustic type heat exchanger body integration rate is consistent with the first part of the people's degree, and the sum of the actual welding length is 1CC%. The caliper of the actual welding length is calculated accurately to one part. Stone inspection plan
6, "2.3-4, S can be carried out within the period of time to meet the requirements of the enterprise or part of the project, or the production will be required by the technical representative 6, 2. Some requirements are the same. The test piece is completed or ±, 4--4.6 close particle inspection. 6.3.X and 4.0 are only applicable to products without market Zhaoqin heat release performance indicators, JB/T85771997
6.4 The inspection room for new products, the modification of old products and the mass production of foreign small batch products shall be subject to type test: the company shall supervise the inspection of 4.1--4.22. .
.5 The product shall be inspected by the manufacturer before it can be inspected by the factory. The inspection of 4.3, 4.10--4.22, etc. shall be carried out:
6.6 The ordering unit shall conduct strict inspection of the product and pass the acceptance in accordance with the acceptance regulations agreed by both parties on the 28th or the acceptance period. 7 Marking, packaging, transportation and storage 7.1 Marking 1.1 The product should be marked with: company name or label: product model and name of the manufacturer or manufacturer number; product specification number: product specification number. There should be a small "open with caution, be careful not to burn" warning sign on the outlet of the device. 7.1.2 The position of the product mark should comply with the regulations of the network. The mark should keep good brightness during the product use period. 3.2 Packaging: The outlet should have a cover to prevent the product from being damaged during transportation and storage. 2.2 Product packaging The packaging method should be sufficient to ensure that the product is not damaged during transportation and storage. Supply and demand double system packaging, if there is an agreement, follow the agreement:
. 2.3 The package list should have a packing list with a brand name, packaging number, etc. The packing list should indicate the product name, model, and model.
. 2. The package and box should have an instruction manual and a production certificate with the manufacturer's quality inspection and signature. The qualified design should state:
Product model and name
Product model number,
Product model number,
7.2.5 Packing factory label,
Product model and name,
Product model number:
Packaging and total address:
Year of production or! Number.
7.3 The installed heat sink should be allowed to be transported in any normal way. 7.4 The heat sink should be kept in a ventilated environment. The manufacturer should ensure that the heat sink will not rust within 13 months.
JB/T B577-1997
Appendix A
(Long-term Appendix)
Method for collating test data of heat dissipation performance of water radiator for internal combustion engine 41 Test data of heat dissipation performance of water radiator for internal combustion engine should be recorded in the format of Table A1 42 Method for collating test data
) Air heat dissipation basis Q (W)
. = 100c W.\,...
2.-1000 Vpcas.
Where, v.
Air wash base + m/a:
Air density.kg/m:
C—Specific heat capacity of air: k/g·
Air discharge: 1-average temperature,:
Average temperature difference between inlet and outlet of air.
b) Water flow rate @ ()
WpCett.y
Wuzhong:
Water flow rate.h
Fast rate, kg/m2:
*Specific heat rate.kkg
Water inlet and outlet fullness, heart
Water inlet and outlet old, heart.
c Thermal level error 1
New product identification, isocondensation assessment: flow.
d) Convert micro-cooked flow Q(W)
（A2）
Number of potentials must be compared with the same flow rate when the flow rate is equal. The temperature difference of each quality certificate port is allowed to be converted to the specified deviation of the center of the center of the full difference of each wind and the required time for the heat dissipation flow. This standard adopts the following calculation formula for screening:
Where:
Before the test, the inlet temperature of the material indicated,
e) Heat transfer coefficient K.LW/(r: C T
In the formula, the effective average temperature difference of the gas side of the whole heat exchanger.
--. The heating area is calculated according to the provisions of Appendix B (Appendix B of the standard); the logarithmic control flow difference is calculated according to the following formula:)
-- Ir[(3/(t -- t,)]
The results of the expansion calculation should be filled in Table A1.
gThe test results should be plotted as the performance curve shown in Figure A1, CAe:
To the mouth
JR/T8577
JIB/T8577
Figure A1 Heat radiator heat 4 energy sustainability curve
ka/(u.*. a)
B" Radiator frontal area S.
JB/T $5771997
Appendix E
(Appendix of international standards)
Main structure difference calculation method of indoor water heater 9, -
A radiator and then the embryo distance between the pieces, n11
E-heat sink good use of the general piece I.m:
and the distance between the two heat sinks (referring to the pipe section type 3, B2 radiator water channel area S
S.=hNIr/R
Where: force, the heat sink cross section must be as long as the longest straight line length, before; a micro heat pipe cut surface inside the case.m:
heat pipe root whole.
B3 radiator heat area F.
3.1 General sheet heat collector number heat solid product control formula, F. -(AB-NA - --(F - nN
Wu,-
Number of heat sinks:
Heat sink width:
4—Heat sink width.F;
—Heat sink length, m
-Heat sink lock surface length;
——Heat sink cross-sectional width,
1.-Effective length. That is, the distance between the heat sinks, and: 3-Disc thickness m
H3.2 Sectional heat sink heat sink is calculated according to the following formula: F = 2H -2-i hiN
Or:"-Effective;
-Heat sink length, m;
7-Heat sink opening length, m.
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