This standard specifies the classification and technical conditions of steel low-pressure wet gas holders with a design pressure of no more than 4000Pa and a nominal volume of no more than 100,000 cubic meters. This standard applies to gas holders used for gas storage, buffering, mixing, and pressure stabilization in the chemical and petrochemical industries, and can also be used as gas holders in the metallurgical and city gas industries. HG/T 21549-1995 Steel Low-pressure Wet Gas Holder Series HG/T21549-1995 Standard download decompression password: www.bzxz.net

Industry Standard of the People's Republic of China
Steel Low-pressure Wet Gasholder Series
HG/T21549-95
Editor: The Third Design Institute of the Ministry of Chemical Industry
Approval Department: Ministry of Chemical Industry
Implementation Date: November 1, 1995 Engineering Construction Standards Editing Center of the Ministry of Chemical Industry
Document of the Ministry of Chemical Industry
Huajianfa (1995) No. 650www.bzxz.net
Notice on the Issuance of Five Industry Standards Including "Plunger-type Discharge Valve"
To all provincial, autonomous region, municipality directly under the Central Government, and independently planned cities, and all relevant units: The five industry standards including "Plunger-type Discharge Valve" (name and number of the standard are in the attachment) formulated by the Ministry's Equipment Design Technology Center have been reviewed and are now approved as recommended industry standards. They will be implemented on November 1, 1995. The five standards are managed by the Ministry's Equipment Design Technology Center Station and published and distributed by the Ministry's Engineering Construction Standards Editing Center. Attachment: Catalog of five industry standards including "Plunger Discharge Valve" Ministry of Chemical Industry
August 28, 1995
Standard for Steel Low-pressure Wet Helical Gasholders with External Guides HG/T21549.495
Scope of Application
1.0.1 This standard specifies the structural type, size and volume series of steel low-pressure wet spiral gasholders.
1.0.2 This standard applies to steel low-pressure wet gasholders with a design pressure of 4000Pa, a design wind load of 500Pa, and a nominal volume VN=1000100000m3. 53
2 Reference standard
HG/T21549.1: "Classification and technical conditions of steel low-pressure wet gas holder series" 54
3 Structural type and main dimensions
VN=1000~2500m3 The structural type of spiral gas holder shall be as specified in Figure 3.0.1.
1—boiler sink
2—lower counterweight
4-upper counterweight 5-—guide wheel
3-bell cover
VN=5000m° The structural type of spiral gas holder shall be as specified in Figure 3.0.2. D
1 boiler tank
4-- bell cover
2 middle section
5 upper counterweight
3-lower counterweight
6--guide wheel
provides.
VN=10000~30000m The structural type of spiral gas holder shall be in accordance with Figure 3.0.3, 1-a- steel tank
5 bell cover
2-middle section 1
3--middle section 1
6--upper counterweight
7 guide wheel
lower counterweight
provides.
VN=50000~100000mThe structural type of spiral gas holder is as shown in Figure 3.0.4
1-—Steel water tank
5—Lower counterweight
2 Middle section
6 Bell cover
3 Middle section
7-Upper counterweight
4—Middle section 1
8-Guide wheel
The main dimensions and pipe opening sizes of spiral gas holder are as specified in Table 3.0.5=1 and Table 3.0.5
3.0.52 respectively. | |tt | 0080000
91800800002668
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