CN202485761U - Device for reducing small-flow pressure fluctuation - Google Patents
Device for reducing small-flow pressure fluctuation Download PDFInfo
- Publication number
- CN202485761U CN202485761U CN2012200567672U CN201220056767U CN202485761U CN 202485761 U CN202485761 U CN 202485761U CN 2012200567672 U CN2012200567672 U CN 2012200567672U CN 201220056767 U CN201220056767 U CN 201220056767U CN 202485761 U CN202485761 U CN 202485761U
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- China
- Prior art keywords
- pressure
- valve
- water
- pressurizing vessel
- container
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- Expired - Fee Related
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- Control Of Fluid Pressure (AREA)
Abstract
The utility model relates to a device for reducing small-flow pressure fluctuation, which comprises a pressure-stabilizing container, a water inlet connected with a water pump, a feeding port of a test system, a constant pressure air source, a safety valve, a vent valve, an adjusting valve, an air eliminator and a back-water valve, wherein the safety valve and the vent valve are mounted at the top of the pressure-stabilizing container; the adjusting valve and the air eliminator are connected with an outlet of the vent valve; and the constant pressure air source and the back-water valve are respectively connected with the two sides of the upper part of the pressure-stabilizing container. The device for reducing small-flow pressure fluctuation has the advantages that: 1) the pressure-stabilizing container of the device is an airtight container with coexistence of air and liquid, and the pressure in the pressure-stabilizing container is kept unchanged by the safety valve mounted at the top of the pressure-stabilizing container, so that the water-supply pressure is ensured, and 2) the magnitude of the air pressure in the pressure-stabilizing container is adjusted by the adjusting valve mounted at the top of the pressure-stabilizing container, so that the pressure of the water source is adjusted according to different requirements, and the pressure fluctuation is avoided when the entering and exiting water quantities are non-synchronous and a small flow is outputted.
Description
Technical field:
The utility model relates to a kind of water meter Performance Test System, especially relates to a kind of device that reduces the tiny flow quantity pressure surge.
Background technology:
In the prior art, the water source voltage regulation way that when doing some technical feature tests for water meter, provides has two kinds usually: a kind of is to adopt elevated tank, though elevated tank can provide stable hydraulic pressure, equipment cost is excessive; Another kind is to adopt pressurizing vessel, and the weak point of existing pressurizing vessel is to receive into and out of the difference of the water yield producing pressure surge, and the pressure surge that causes when particularly exporting tiny flow quantity has influence on the precision of test.
The utility model content:
The purpose of the utility model is the device that a kind of simple in structure, minimizing tiny flow quantity pressure surge that cost is low is provided to the prior art weak point.
The purpose of the utility model is to realize through following measure: a kind of device that reduces the tiny flow quantity pressure surge; It comprises pressurizing vessel, the water inlet that is connected with water pump and test macro admission port; It is characterized in that also having constant voltage source of the gas, safety valve, vent valve, variable valve, air separator, back-water valve (BWV); Said safety valve and vent valve are installed in the top of pressurizing vessel, and the outlet of vent valve also is connected to variable valve, air separator, and both sides, pressurizing vessel top are connected to constant voltage source of the gas, back-water valve (BWV) respectively.
The external liquid level gauge in the bottom of said pressurizing vessel, the other end of liquid level gauge are connected on pressurizing vessel and the pipeline that back-water valve (BWV) is connected.
Also be connected with reduction valve, tensimeter on said constant voltage source of the gas and the pipeline that pressurizing vessel is connected.
Compared with prior art; Adopted the device of the minimizing tiny flow quantity pressure surge of the utility model proposition; Have following advantage: 1) pressurizing vessel of the utility model is the closed container of a gas-liquid coexistence; The pressure of keeping in the pressurizing vessel through the safety valve that is installed in the pressurizing vessel top is constant, thereby guarantees pressure of supply water; 2) through to being installed in the variable valve at pressurizing vessel top; Size to the pressurizing vessel inner air pressure is regulated; The pressure at water source can be adjusted according to different needs, guarantee into and out of the water yield asynchronous the time and when the output tiny flow quantity, can not produce pressure surge.
Description of drawings:
Fig. 1 is the example structure synoptic diagram that the utility model proposes.
Embodiment:
Below in conjunction with accompanying drawing embodiment is elaborated: Fig. 1 shows an embodiment of the utility model.Among the figure, a kind of device that reduces the tiny flow quantity pressure surge, it comprises: pressurizing vessel 1, the water inlet 2 that is connected with water pump, test macro admission port 3, constant voltage source of the gas 4, safety valve 5, vent valve 6, variable valve 7, air separator 8, back-water valve (BWV) 9; Said safety valve 5 and vent valve 6 are installed in the top of pressurizing vessel, and the outlet of vent valve 6 also is connected to variable valve 7, air separator 8, and both sides, pressurizing vessel 1 top are connected to constant voltage source of the gas 4, back-water valve (BWV) 9 respectively.The pressurizing vessel of the utility model is the closed container of a gas-liquid coexistence, when the water inlet that is connected with water pump imports hot water, imports the pressurized air of constant pressure simultaneously from the constant voltage source of the gas; When the heat hydraulic pressure raise in the container, gas was compressed, when reaching pressure set points; Unnecessary air is discharged from, and container inner pressure decreases, when the heat hydraulic pressure reduces in the container; Pressurized air gets into container, and container inner pressure raises, and keeps the pressure in the container constant.The utility model also can through to being installed in the variable valve at pressurizing vessel top, be regulated air pressure according to different needs, to keep different discharge pressures.
The utility model is also further taked following measure: the external liquid level gauge 10 in the bottom of said pressurizing vessel; The other end of liquid level gauge is connected on pressurizing vessel and the pipeline that back-water valve (BWV) is connected, can provide the information that the water pump that is attached thereto is regulated inflow according to the height of liquid level gauge indication.Also be connected with reduction valve 11, tensimeter 12 on said constant voltage source of the gas and the pipeline that pressurizing vessel is connected.The reduction valve scalable gets into the compressed-air actuated pressure of pressurizing vessel.
Combine accompanying drawing to describe the embodiment of the utility model above; The structure that embodiment provides does not constitute the restriction to the utility model, and those skilled in the art make various distortion within the scope of the appended claims or revise all in protection domain in this area.
Claims (3)
1. device that reduces the tiny flow quantity pressure surge, it comprises pressurizing vessel, the water inlet that is connected with water pump and test macro admission port, it is characterized in that, also has constant voltage source of the gas, safety valve, vent valve, variable valve, air separator, back-water valve (BWV); Said safety valve and vent valve are installed in the top of pressurizing vessel, and the outlet of vent valve also is connected to variable valve, air separator, and both sides, pressurizing vessel top are connected to constant voltage source of the gas, back-water valve (BWV) respectively.
2. the device of minimizing tiny flow quantity according to claim 1 pressure surge is characterized in that, the external liquid level gauge in the bottom of said pressurizing vessel, the other end of liquid level gauge are connected on pressurizing vessel and the pipeline that back-water valve (BWV) is connected.
3. the device of minimizing tiny flow quantity according to claim 1 and 2 pressure surge is characterized in that, also is connected with reduction valve, tensimeter on said constant voltage source of the gas and the pipeline that pressurizing vessel is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200567672U CN202485761U (en) | 2012-02-21 | 2012-02-21 | Device for reducing small-flow pressure fluctuation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200567672U CN202485761U (en) | 2012-02-21 | 2012-02-21 | Device for reducing small-flow pressure fluctuation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202485761U true CN202485761U (en) | 2012-10-10 |
Family
ID=46960176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200567672U Expired - Fee Related CN202485761U (en) | 2012-02-21 | 2012-02-21 | Device for reducing small-flow pressure fluctuation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202485761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289747A (en) * | 2016-08-25 | 2017-01-04 | 中国核动力研究设计院 | Water and gas dual-purpose relief valve cold conditions comprehensive performance testing device |
| CN108775949A (en) * | 2018-07-12 | 2018-11-09 | 丹东意邦计量仪器仪表有限公司 | A kind of voltage stabilizing fluid perseverance liquid level buffer system |
-
2012
- 2012-02-21 CN CN2012200567672U patent/CN202485761U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289747A (en) * | 2016-08-25 | 2017-01-04 | 中国核动力研究设计院 | Water and gas dual-purpose relief valve cold conditions comprehensive performance testing device |
| CN106289747B (en) * | 2016-08-25 | 2019-01-29 | 中国核动力研究设计院 | Water and gas dual-purpose safety valve cold conditions comprehensive performance testing device |
| CN108775949A (en) * | 2018-07-12 | 2018-11-09 | 丹东意邦计量仪器仪表有限公司 | A kind of voltage stabilizing fluid perseverance liquid level buffer system |
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Legal Events
| 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 |
Granted publication date: 20121010 Termination date: 20180221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |