CN204328480U - A kind of liquid gas stable-pressure device - Google Patents

A kind of liquid gas stable-pressure device Download PDF

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Publication number
CN204328480U
CN204328480U CN201420735149.XU CN201420735149U CN204328480U CN 204328480 U CN204328480 U CN 204328480U CN 201420735149 U CN201420735149 U CN 201420735149U CN 204328480 U CN204328480 U CN 204328480U
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CN
China
Prior art keywords
valve
pressure
liquid gas
pump
outlet
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
CN201420735149.XU
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Chinese (zh)
Inventor
孙立华
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 Equipment 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 Equipment Co Ltd filed Critical Tianjin Huamai Gas Equipment Co Ltd
Priority to CN201420735149.XU priority Critical patent/CN204328480U/en
Application granted granted Critical
Publication of CN204328480U publication Critical patent/CN204328480U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of liquid gas stable-pressure device, comprise and enter pump line road by the liquid gas of liquid flowing valve and positioned inline, enter the import of one end docking liquid gas on pump line road, the other end is connected to the entrance point of stabilized pressure pump, the outlet end of stabilized pressure pump connect by one-way valve and fluid valve in series go out pump line road, go out the outlet of the corresponding liquid gas of the other end on pump line road, simultaneously, the bypass line that connection one is in parallel with stabilized pressure pump between the import and outlet of liquid gas, bypass line is provided with bypath valve, bypath valve and fluid valve convergence tube road are provided with safety return-flow valve and pressure gauge.The utility model device efficiently solves the problem that pressure of storage tank is not enough and stabilized pressure pump outlet pressure is too high, and structure is simple, cost of investment is low, easy to implement, easy to maintenance, fast and safely.

Description

A kind of liquid gas stable-pressure device
Technical field
The utility model belongs to liquid gas pressure stabilizing device technical field, particularly a kind of liquid gas stable-pressure device.
Background technique
Liquid gas with its calorific value high industry and civilian on be widely used.Application on liquid gas generally by liquefied gas storage feed flow to downstream vaporizer, along with lasting gas, tank inner pressure reduces, when can not meet downstream pressure, this just can rapid pressure device in very short time in the urgent need to one, guarantees gas supply capacity and uses gas demand.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and proposes a kind of liquid gas stable-pressure device.
The utility model solves its technical problem and takes following technological scheme to realize:
A kind of liquid gas stable-pressure device, it is characterized in that: comprise and enter pump line road by the liquid gas of liquid flowing valve and positioned inline, enter the import of one end docking liquid gas on pump line road, the other end is connected to the entrance point of stabilized pressure pump, the outlet end of stabilized pressure pump connect by one-way valve and fluid valve in series go out pump line road, go out the outlet of the corresponding liquid gas of the other end on pump line road, simultaneously, the bypass line that connection one is in parallel with stabilized pressure pump between the import and outlet of liquid gas, bypass line is provided with bypath valve, bypath valve and fluid valve convergence tube road are provided with safety return-flow valve and pressure gauge.
And, described bypath valve and fluid valve convergence tube road are provided with safety return-flow valve bottom valve and atmospheric valve further.
And described stabilized pressure pump model is HWP-4.5DN25, filter model is GL41H-25DN25.
Advantage of the present utility model and good effect are:
The utility model device efficiently solves the problem that pressure of storage tank is not enough and stabilized pressure pump outlet pressure is too high, and structure is simple, cost of investment is low, easy to implement, easy to maintenance, fast and safely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Implement to be further described to the utility model below in conjunction with accompanying drawing, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of liquid gas stable-pressure device, as shown in Figure 1, comprise the liquid gas of being connected by liquid flowing valve 4 and filter 5 and enter pump line road, enter the import of one end docking liquid gas on pump line road, the other end is connected to the entrance point of stabilized pressure pump 6, the outlet end of stabilized pressure pump connect by one-way valve 7 and fluid valve 8 in series go out pump line road, go out the outlet of the corresponding liquid gas of the other end on pump line road, simultaneously, the bypass line that connection one is in parallel with stabilized pressure pump between the import and outlet of liquid gas, bypass line is provided with bypath valve 3, bypath valve and fluid valve convergence tube road are provided with safety return-flow valve 1 and pressure gauge 9.
In concrete enforcement of the present utility model, described bypath valve and fluid valve convergence tube road are provided with safety return-flow valve bottom valve 2 and atmospheric valve 10 further.
In this embodiment, stabilized pressure pump model is HWP-4.5DN25; Filter model is GL41H-25DN25; Safety return-flow valve bottom valve model is AH42F-25DN25; One-way valve model is H44Y-25-DN25; The model that liquid in-out valve, bypath valve and safety return-flow valve bottom valve all adopt is Q41F-25DN25.
Working procedure of the present utility model:
Bypath valve need be used when pressure of storage tank can meet user demand, when pressure of storage tank is too low, start stabilized pressure pump, the pressure of its import is exactly the pressure of storage tank, liquid gas from storage tank out, enters downstream after stabilized pressure pump raised pressure, when voltage stabilizing outlet pressure is higher than downstream gas equipment pressure, then get back to storage tank by safety return-flow valve, ensure to carry out the stable fuel gas transmission of pressure flow to outside ductwork.

Claims (3)

1. a liquid gas stable-pressure device, it is characterized in that: comprise and enter pump line road by the liquid gas of liquid flowing valve and positioned inline, enter the import of one end docking liquid gas on pump line road, the other end is connected to the entrance point of stabilized pressure pump, the outlet end of stabilized pressure pump connect by one-way valve and fluid valve in series go out pump line road, go out the outlet of the corresponding liquid gas of the other end on pump line road, simultaneously, the bypass line that connection one is in parallel with stabilized pressure pump between the import and outlet of liquid gas, bypass line is provided with bypath valve, bypath valve and fluid valve convergence tube road are provided with safety return-flow valve and pressure gauge.
2. liquid gas stable-pressure device according to claim 1, is characterized in that: on described bypath valve and fluid valve convergence tube road, be provided with safety return-flow valve bottom valve and atmospheric valve further.
3. liquid gas stable-pressure device according to claim 1, is characterized in that: described stabilized pressure pump model is HWP-4.5DN25, and filter model is GL41H-25 DN25.
CN201420735149.XU 2014-11-28 2014-11-28 A kind of liquid gas stable-pressure device Expired - Fee Related CN204328480U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420735149.XU CN204328480U (en) 2014-11-28 2014-11-28 A kind of liquid gas stable-pressure device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420735149.XU CN204328480U (en) 2014-11-28 2014-11-28 A kind of liquid gas stable-pressure device

Publications (1)

Publication Number Publication Date
CN204328480U true CN204328480U (en) 2015-05-13

Family

ID=53164839

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420735149.XU Expired - Fee Related CN204328480U (en) 2014-11-28 2014-11-28 A kind of liquid gas stable-pressure device

Country Status (1)

Country Link
CN (1) CN204328480U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106641721A (en) * 2015-11-04 2017-05-10 中国石油化工股份有限公司 Constant-pressure start method for hot waxy crude oil pipeline

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106641721A (en) * 2015-11-04 2017-05-10 中国石油化工股份有限公司 Constant-pressure start method for hot waxy crude oil pipeline
CN106641721B (en) * 2015-11-04 2019-03-19 中国石油化工股份有限公司 A kind of hot waxy oil pipeline constant pressure starting method

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150513

Termination date: 20161128