CN201787339U - Natural gas pressure relief device simultaneously with high-pressure and medium-pressure relief functions - Google Patents

Natural gas pressure relief device simultaneously with high-pressure and medium-pressure relief functions Download PDF

Info

Publication number
CN201787339U
CN201787339U CN2010205228172U CN201020522817U CN201787339U CN 201787339 U CN201787339 U CN 201787339U CN 2010205228172 U CN2010205228172 U CN 2010205228172U CN 201020522817 U CN201020522817 U CN 201020522817U CN 201787339 U CN201787339 U CN 201787339U
Authority
CN
China
Prior art keywords
pressure
heat exchanger
natural gas
medium
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010205228172U
Other languages
Chinese (zh)
Inventor
贾艳东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Huamai Gas Equipment Co., Ltd.
Original Assignee
TIANJIN HUAMAI GAS TECHNOLOGY DEVELOPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TIANJIN HUAMAI GAS TECHNOLOGY DEVELOPMENT Co Ltd filed Critical TIANJIN HUAMAI GAS TECHNOLOGY DEVELOPMENT Co Ltd
Priority to CN2010205228172U priority Critical patent/CN201787339U/en
Application granted granted Critical
Publication of CN201787339U publication Critical patent/CN201787339U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model relates to a natural gas pressure relief device simultaneously with high-pressure and medium-pressure relief functions, which comprises a pressure-relief pipeline of high-pressure natural gas and a pressure-relief pipeline of medium-pressure natural gas; the pressure-relief pipeline of high-pressure natural gas comprises a natural gas inlet, a valve, a filter, a cut-off valve, a high-pressure heat exchanger, a high-pressure regulator, a medium-pressure heat exchanger, a medium-pressure regulator and an outlet valve which are serially connected through pipelines; the pressure-relief pipeline of medium-pressure natural gas comprises a natural gas inlet, a valve, a filter, a cut-off valve, a medium-pressure heat exchanger, a medium-pressure regulator and an outlet valve which are serially connected through pipelines; and the pressure-relief pipeline of high-pressure natural gas and the pressure-relief pipeline of medium-pressure natural gas share the same medium-pressure heat exchanger, and the two pipelines are combined into a pipeline and are connected with the natural gas outlet pipeline. The utility model has the advantages that the structure is simple, the implementation is easy, the repair is convenient, safe and reliable, the device is made into prying equipment and is convenient to transport and install, the gas-relief requirements of high-pressure and medium-pressure vehicle prying can be simultaneously met, the adjustment is convenient, and the working efficiency can be greatly improved.

Description

A kind of rock gas decompressor that possesses height, middle pressure pressure-reducing function simultaneously
(1) technical field
The utility model relates to compressed natural gas station pressure regulating equipment, particularly a kind of rock gas decompressor that possesses height, middle pressure pressure-reducing function simultaneously.
(2) background technique
Along with the extensive use of compressed natural gas, a lot of Natural gas letdown stations has appearred in domestic various places now, As time goes on, has occurred a kind of middle sled car device of pressing again, and this device is safer, and cost is more cheap, and material and technology are all very ripe.According to mode in the past, pressure-reducing station reduces pressure from high pressure, and the mode of decompression all is that to take two-stage decompression, heat exchange mode be the two-stage heat exchange, and caliber is to make according to the requirement at high pressure relief station.And above-mentioned middle pressure sled car utilize the decompressor at this high pressure relief station to carry out pressure regulation after flow not enough, the progression of decompression is too much, the equipment work instability is adjusted loaded down with trivial details.Therefore needing a kind of device had both kept the function that high pressure is unloaded, and pressed the function of unloading in having again, and operation must be simple, and it is convenient to adjust, and can guarantee that again the sled car of two kinds of pressure ratings can be unloaded simultaneously.
(3) model utility content
The purpose of this utility model is at above-mentioned existing problems, a kind of simple in structure, safe and reliable, convenient maintenance is provided, possesses the rock gas decompressor of height, middle pressure pressure-reducing function when applicability is strong.
The technical solution of the utility model:
A kind of possess height simultaneously, middle rock gas decompressor of pressing pressure-reducing function, form by high-pressure natural gas relief line and middle pressure rock gas relief line, the high-pressure natural gas relief line comprises the high-pressure natural gas import, high pressure valve, high pressure filter, high-pressure shut-off, high pressure heat exchanger, high-voltage regulator, the middle heat exchanger of pressing, press pressure governor and pressure duct outlet valve in the pressure duct and be connected in series by pipeline, high pressure heat exchanger is a coil pipe heat exchange-type hermetically sealed can structure, the middle rock gas relief line of pressing comprises the middle rock gas import of pressing, Middle pressure valve, middle press filtration device, the middle cut-off valve of pressing, the middle heat exchanger of pressing, in press pressure governor and middle pressure pipe way outlet valve in the pressure pipe road and be connected in series by pipeline, the middle pressure heat exchanger of high-pressure natural gas relief line and the middle pressure heat exchanger of middle pressure rock gas relief line are a shared heat exchanger, middle pressure heat exchanger is a coil pipe heat exchange-type hermetically sealed can structure, the heat exchanger coiled pipe of the heat exchanger coiled pipe of high-pressure natural gas and middle pressure rock gas all is arranged in the sealing jar, and the pressure duct by pressure duct and middle pressure pipe way outlet valve is combined into a pipeline with middle pressure pipe road and is connected with the gas outlet pipeline.
Working procedure of the present utility model: at first high pressure is prized car and high pressure and unloaded and mouthful link to each other, the compressed natural gas of high pressure enters into the high-pressure inlet valve, through filter, and the heat absorption before the heat exchanger that the high pressure Emergeny Cutoff Valves enters into high pressure reduces pressure.Reducing pressure through the high pressure decompressor after the heat absorption enters into the heat exchanger of pressing again and absorbs heat, and enters user's pipe network through middle pressure decompressor to outlet conduit after the heat absorption.In delay unloading with decompressor in compress into and mouthful link to each other, through the Middle pressure valve of import, filter, middle pressure Emergeny Cutoff Valves enter into presses heat exchanger to carry out the gas heat absorption, the decompressor of pressing in the laggard mistake of absorbing heat reduces pressure, and imports outlet conduit at last and supplies with user's pipe network.In this device, high pressure the unload middle pressure heat exchanger of pipeline of the middle pressure heat exchanger of pipeline and middle pressure of unloading is a shared heat exchange container, and economical with materials is saved the space.This device is made skid mounted equipment structure, convenient transportation and installation.
The utility model has the advantages that: this rock gas decompressor is simple in structure, easy to implement, easy to maintenance and safe and reliable, this device is made skid mounted equipment, convenient transportation and installation, can satisfy the gas demand of unloading of high pressure sled car and middle pressure sled car simultaneously, and adjust conveniently, can increase work efficiency greatly.
(4) description of drawings
Accompanying drawing is this device schematic flow sheet.
Among the figure: 1. press in high-pressure natural gas import 2. high pressure valves 3. high pressure filters 4. high-pressure shut-off 5. high pressure heat exchangers 6. high-voltage regulators 7. to press in the press filtration device 10. in rock gas import 8. Middle pressure valves 9. to press in the cut-off valve 11. to press in heat exchanger 12. pressure ducts and press pressure pipe way outlet valve 15. pressure duct outlet valves 16. gas outlet pipelines in the pressure governor 14. in the pressure governor 13. in the pressure pipe road
(5) embodiment
Embodiment: the rock gas decompressor of pressing pressure-reducing function in a kind of having, form by high-pressure natural gas relief line and middle pressure rock gas relief line, the high-pressure natural gas relief line comprises high-pressure natural gas import 1, high pressure valve 2, high pressure filter 3, high-pressure shut-off 4, high pressure heat exchanger 5, high-voltage regulator 6, the middle heat exchanger 11 of pressing, press pressure governor 12 and pressure duct outlet valve 15 in the pressure duct and be connected in series by pipeline, high pressure heat exchanger 5 is a coil pipe heat exchange-type hermetically sealed can structure, the middle rock gas relief line of pressing comprises the middle rock gas import 7 of pressing, Middle pressure valve 8, middle press filtration device 9, the middle cut-off valve 10 of pressing, the middle heat exchanger 11 of pressing, in press pressure governor 13 and middle pressure pipe way outlet valve 14 in the pressure pipe road and be connected in series by pipeline, the middle pressure heat exchanger 11 of high-pressure natural gas relief line and the middle pressure heat exchanger 11 of middle pressure rock gas relief line are a shared heat exchanger, middle pressure heat exchanger 11 is a coil pipe heat exchange-type hermetically sealed can structure, the heat exchanger coiled pipe of the heat exchanger coiled pipe of high-pressure natural gas and middle pressure rock gas all is arranged in the sealing jar, by pressure duct and middle pressure pipe way outlet valve 15,14 pressure duct is combined into a pipeline with middle pressure pipe road and is connected with gas outlet pipeline 16.

Claims (1)

1. one kind possesses height simultaneously, middle rock gas decompressor of pressing pressure-reducing function, it is characterized in that: form by high-pressure natural gas relief line and middle pressure rock gas relief line, the high-pressure natural gas relief line comprises the high-pressure natural gas import, high pressure valve, high pressure filter, high-pressure shut-off, high pressure heat exchanger, high-voltage regulator, the middle heat exchanger of pressing, press pressure governor and pressure duct outlet valve in the pressure duct and be connected in series by pipeline, high pressure heat exchanger is a coil pipe heat exchange-type hermetically sealed can structure, the middle rock gas relief line of pressing comprises the middle rock gas import of pressing, Middle pressure valve, middle press filtration device, the middle cut-off valve of pressing, the middle heat exchanger of pressing, in press pressure governor and middle pressure pipe way outlet valve in the pressure pipe road and be connected in series by pipeline, the middle pressure heat exchanger of high-pressure natural gas relief line and the middle pressure heat exchanger of middle pressure rock gas relief line are a shared heat exchanger, middle pressure heat exchanger is a coil pipe heat exchange-type hermetically sealed can structure, the heat exchanger coiled pipe of the heat exchanger coiled pipe of high-pressure natural gas and middle pressure rock gas all is arranged in the sealing jar, and the pressure duct by pressure duct and middle pressure pipe way outlet valve is combined into a pipeline with middle pressure pipe road and is connected with the gas outlet pipeline.
CN2010205228172U 2010-09-09 2010-09-09 Natural gas pressure relief device simultaneously with high-pressure and medium-pressure relief functions Expired - Fee Related CN201787339U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205228172U CN201787339U (en) 2010-09-09 2010-09-09 Natural gas pressure relief device simultaneously with high-pressure and medium-pressure relief functions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205228172U CN201787339U (en) 2010-09-09 2010-09-09 Natural gas pressure relief device simultaneously with high-pressure and medium-pressure relief functions

Publications (1)

Publication Number Publication Date
CN201787339U true CN201787339U (en) 2011-04-06

Family

ID=43819301

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205228172U Expired - Fee Related CN201787339U (en) 2010-09-09 2010-09-09 Natural gas pressure relief device simultaneously with high-pressure and medium-pressure relief functions

Country Status (1)

Country Link
CN (1) CN201787339U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103383045A (en) * 2012-05-04 2013-11-06 中国石油天然气股份有限公司 Heating system for pilot type pressure regulating valve with over-pressure protection function
CN103629529A (en) * 2013-12-10 2014-03-12 郑州煤机综机设备有限公司 High-pressure fluid control device for mechanized mine
CN105650884A (en) * 2016-01-31 2016-06-08 江苏韩通船舶重工有限公司 Water heating system for compressed natural gas vessel and working method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103383045A (en) * 2012-05-04 2013-11-06 中国石油天然气股份有限公司 Heating system for pilot type pressure regulating valve with over-pressure protection function
CN103629529A (en) * 2013-12-10 2014-03-12 郑州煤机综机设备有限公司 High-pressure fluid control device for mechanized mine
CN105650884A (en) * 2016-01-31 2016-06-08 江苏韩通船舶重工有限公司 Water heating system for compressed natural gas vessel and working method thereof

Similar Documents

Publication Publication Date Title
CN201757268U (en) CNG station quick gas filling device
CN102661228B (en) Aqueous vapor subdivision energy-storage system
CN201787339U (en) Natural gas pressure relief device simultaneously with high-pressure and medium-pressure relief functions
CN201547497U (en) Compressed natural gas pressure regulating gas supply device by adopting air-temperature heat exchanger
CN104613312B (en) Process BOG complete set of equipments and the method adopting this equipment to process BOG
CN201025001Y (en) Low voltage gas collection system
CN201281224Y (en) High-pressure compressed gas discharging device
CN202674831U (en) Wellhead supercharger special for exploitation of coal bed gas
CN102155621B (en) Medium pressure regulating box in compressed natural gas supplying station and pressure regulating and gas supplying method thereof
CN202126142U (en) Air separation device capable of rapidly putting into rectification operation
CN201706197U (en) Natural gas depressurizing device provided with single heat exchanger
CN203829882U (en) Product gas output device of high-purity high-pressure gas production device
CN202327659U (en) Switching device for high-pressure and high-flow continuous air supply system
CN208090315U (en) A kind of CNG sub-station compressor systems of automatic distribution compression ratio
CN203837410U (en) Single-compression double-supercharging double-expansion high purity nitrogen generating device
CN203731092U (en) Device for pressurizing raw natural gas by using natural gas pipeline network pressure energy
CN202791322U (en) LNG (liquefied natural gas) gasification station
CN203743035U (en) Protection system for partition board of high pressure cylinder synthesis section and circulation section of synthesis gas compressor
CN201925721U (en) Low-flow compressed natural gas pressure regulating, measuring and supplying skid-mounted device
CN204186588U (en) A kind of scroll compressor combustion engine natural gas boosting system
CN203628273U (en) Air separation low-pressure nitrogen interconnection device
CN201507785U (en) Independent-gas supply gas pipe network of factory
CN203916410U (en) A kind of entrucking shipment gas superzapping contracting oil gas system
CN203892160U (en) Process device for making up shortage of inflation quantity of air compressors in summer
CN204005247U (en) Improved instrument air process system

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: 300384 Tianjin Huayuan Industrial Park Haitai development five road eight

Patentee after: Tianjin Huamai Gas Equipment Co., Ltd.

Address before: 300384 Tianjin Huayuan Industrial Park Haitai development five road eight

Patentee before: Tianjin Huamai Gas Technology Development Co., Ltd.

C56 Change in the name or address of the patentee

Owner name: TIANJIN HUAMAI GAS EQUIPMENT CO., LTD.

Free format text: FORMER NAME: TIANJIN HUAMAI GAS TECHNOLOGY DEVELOPMENT CO., LTD.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110406

Termination date: 20150909

EXPY Termination of patent right or utility model