CN108506537B - Water supply pressure reducing device - Google Patents
Water supply pressure reducing device Download PDFInfo
- Publication number
- CN108506537B CN108506537B CN201810712754.8A CN201810712754A CN108506537B CN 108506537 B CN108506537 B CN 108506537B CN 201810712754 A CN201810712754 A CN 201810712754A CN 108506537 B CN108506537 B CN 108506537B
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- Prior art keywords
- valve
- water
- water inlet
- water outlet
- pressure
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Fluid-Driven Valves (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
本发明提供了一种供水减压装置，包括自动阀组、进水接口和出水接口，所述自动阀组包括自控阀和控制管路，所述自控阀包括阀体、阀盖、隔膜、进水口和出水口，进水口连接进水接口，出水口连接出水接口，隔膜将自控阀分为上腔和下腔，进水口和出水口均设置在阀体上并与下腔相通，阀盖上设有控制口，控制口与上腔相通，所述控制管路包括连接进水口与控制口的旁通管以及连接控制口与出水接口的连通管，该供水减压装置能够实现供水自动减压，结构简单，寿命长久。
The present invention provides a water supply pressure reducing device, comprising an automatic valve group, a water inlet interface and a water outlet interface, the automatic valve group comprises an automatic control valve and a control pipeline, the automatic control valve comprises a valve body, a valve cover, a diaphragm, a water inlet and a water outlet, the water inlet is connected to the water inlet interface, the water outlet is connected to the water outlet interface, the diaphragm divides the automatic control valve into an upper chamber and a lower chamber, the water inlet and the water outlet are both arranged on the valve body and communicated with the lower chamber, the valve cover is provided with a control port, the control port is communicated with the upper chamber, the control pipeline comprises a bypass pipe connecting the water inlet and the control port and a connecting pipe connecting the control port and the water outlet interface, the water supply pressure reducing device can realize automatic water supply pressure reducing, has a simple structure and a long service life.
Description
Technical Field
The invention relates to water supply hydraulic equipment, in particular to a water supply pressure reducing valve device.
Background
The pressure reducing valve is widely used in high-rise buildings, areas with too high water pressure of urban water supply pipelines, solar water heaters, mines and other occasions to ensure that each water point in a water supply system obtains proper service water pressure and flow. At present, the known pressure reducing valve mainly comprises a valve cavity, a pressure reducing spring, a piston, a push rod and a diaphragm cavity, wherein the piston and the push rod are integrated, a sealing surface is arranged on the push rod, the sealing surface can open or close an outlet along with the movement of the piston, the diaphragm of the diaphragm cavity is fixed at the upper end of the piston, and the piston moves up and down along with the pressure change of the diaphragm cavity. The inlet pressure acts on the piston and the outlet pressure acts on the diaphragm, and an equilibrium state is reached when the sum of the two equals the spring force. When the pressure at the inlet fluctuates, the pressure below the diaphragm pushes the diaphragm to move upwards under the assumption that the pressure at the inlet becomes larger and other conditions are unchanged, the spring is compressed, the spring force becomes larger, meanwhile, the opening degree of the choke is smaller, the liquid resistance is larger, the pressure at the outlet is smaller, and the pressure at the outlet is smaller until a new balance is achieved. When the pressure reducing valve outlet is closed without water or downstream of the pressure reducing valve, the outlet pressure continuously increases, and the pressure below the diaphragm pushes the diaphragm to continuously move upwards until the pressure reducing valve is closed.
The decompression spring of the decompression valve is a main power source, but the hidden danger of internal leakage caused by poor pressure supplementing capability of the spring exists in use, the pulse pressure exists in the water use process, so that the pressure peak value is greatly different from the rated pressure set value before the valve, while the sealing specific pressure is required to be increased when the pressure rises, the sealing force required on the sealing surface is also required to be increased when the pressure before the valve rises, the pressure supplementing capability of the spring is poor, the deformation amount is not correspondingly increased, and the elasticity is unchanged, so that the requirement of the sealing force increase cannot be met, and the internal leakage is caused. Meanwhile, due to the reasons of rust, permanent deformation or breakage of springs and the like, the problems of large pressure regulating errors and even pressure reducing failure are caused, the downstream pressure of the valve is further increased, and downstream pressure-bearing equipment and accessories of the valve are damaged due to overload.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the water supply pressure reducing device which has good pressure reducing and regulating performance, and has no spring in the valve body, so the water supply pressure reducing device has no hidden trouble such as rust of the spring, metal fatigue failure and the like.
In order to solve the technical problems, the invention adopts the following technical scheme:
The water supply pressure reducing device comprises an automatic valve group, a water inlet interface and a water outlet interface, wherein the automatic valve group comprises an automatic control valve and a control pipeline, the automatic control valve comprises a valve body, a valve cover, a diaphragm, a water inlet and a water outlet, the water inlet is connected with the water inlet interface, the water outlet is connected with the water outlet interface, the diaphragm divides the automatic control valve into an upper cavity and a lower cavity, the water inlet and the water outlet are both arranged on the valve body and are communicated with the lower cavity, a control port is arranged on the valve cover and is communicated with the upper cavity, and the control pipeline comprises a bypass pipe for connecting the water inlet with the control port and a communicating pipe for connecting the control port with the water outlet interface.
Preferably, the bypass pipe is provided with a first flow regulating valve.
Preferably, the communicating pipe is provided with a second flow regulating valve.
Tap water enters the lower cavity of the control valve through the water supply interface and enters the upper cavity of the control valve through the control pipeline. In the process of closing water, as tap water continuously enters, the pressure of an upper cavity of the control valve gradually reaches the water supply pressure of the tap water, because the sectional area of a water inlet is smaller than that of the inner cavity of the control valve, the pressure of a water outlet is smaller than that of tap water, the pressure born by the upper surface of a diaphragm is larger than that born by the lower surface of the diaphragm, the diaphragm gradually clings to the lower cavity of the control valve, and the water inlet is closed, and at the moment, the water inlet is disconnected from the water outlet, so that water supply is interrupted; when water is started, the pressure at the water outlet port is reduced, the pressure of the control pipeline is released along with the pressure reduction, the diaphragm is acted by tap water pressure, the diaphragm moves towards the upper cavity of the control valve, the water inlet is opened, tap water enters the water outlet through the lower cavity of the control valve, reduced pressure water supply is realized, the opening of the first flow regulating valve is regulated to control the speed of opening and closing the water inlet by the diaphragm, the opening of the second flow regulating valve is regulated to control the pressure release speed of the control pipeline, the pressure reduction of the diaphragm pressing the water inlet is controlled by the combination of the diaphragm and the pressure reduction value of the water inlet port and the water outlet port, meanwhile, the flow or pressure change of the water point is synchronously fed back to the self-control valve group, and the diaphragm automatically regulates the opening, so that the pressure reducing effect is ensured.
The invention has the beneficial effects that: the decompression spring is not required to be arranged, and the defects of rust, metal fatigue failure and the like of the spring are eliminated; the pressure of tap water is used as a power source to realize water supply and pressure reduction, so that the device is safe and reliable; the diaphragm has stronger pressure supplementing capability relative to the spring, effectively prevents the harm of pulse pressure to the pressure reducing device, and protects the pressure safety of downstream pressure-bearing equipment and accessories.
Drawings
Fig. 1 is a schematic view of a water supply pressure reducing device according to the present invention.
In the figure, 1: water inlet interface, 2: water outlet port, 3: self-control valve, 301: valve body, 302: valve cover, 303: diaphragm, 304: water inlet, 305: and (4) a water outlet, 4: control port, 5: bypass pipe, 6: communicating pipe, 7: first flow regulating valve, 8: a second flow regulating valve.
Detailed Description
The technical scheme of the invention is further described in detail below by combining examples.
As shown in fig. 1, the water supply pressure reducing device disclosed by the invention comprises an automatic valve group, a water inlet interface 1 and a water outlet interface 2, wherein the automatic valve group comprises an automatic control valve 3 and a control pipeline, the automatic control valve 3 comprises a valve body 301, a valve cover 302, a diaphragm 303, a water inlet 304 and a water outlet 305, the water inlet 304 is connected with the water inlet interface 1, the water outlet 305 is connected with the water outlet interface 2, the diaphragm 303 divides the automatic control valve 3 into an upper cavity and a lower cavity, the water inlet 304 and the water outlet 305 are both arranged on the valve body 301 and are communicated with the lower cavity, the valve cover 302 is provided with a control port 4, the control port 4 is communicated with the upper cavity, and the control pipeline comprises a bypass pipe 5 for connecting the water inlet 304 with the control port 4 and a communicating pipe 6 for connecting the control port 4 with the water outlet interface 2.
Further, the bypass pipe 5 is provided with a first flow rate adjusting valve 7.
Further, the communicating pipe 6 is provided with a second flow rate regulating valve 8.
Claims (3)
1. Water supply pressure reducing device, characterized by: the automatic valve comprises an automatic valve group, a water inlet interface and a water outlet interface, wherein the automatic valve group comprises an automatic control valve and a control pipeline, the automatic control valve comprises a valve body, a valve cover, a diaphragm, a water inlet and a water outlet, the water inlet is connected with the water inlet interface, the water outlet is connected with the water outlet interface, the diaphragm divides the automatic control valve into an upper cavity and a lower cavity, the water inlet and the water outlet are both arranged on the valve body and are communicated with the lower cavity, a control port is arranged on the valve cover and is communicated with the upper cavity, and the control pipeline comprises a bypass pipe for connecting the water inlet with the control port and a communicating pipe for connecting the control port with the water outlet interface.
2. The water supply pressure reducing apparatus according to claim 1, wherein: the bypass pipe is provided with a first flow regulating valve.
3. The water supply pressure reducing apparatus according to claim 1, wherein: the communicating pipe is provided with a second flow regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810712754.8A CN108506537B (en) | 2018-07-03 | 2018-07-03 | Water supply pressure reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810712754.8A CN108506537B (en) | 2018-07-03 | 2018-07-03 | Water supply pressure reducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108506537A CN108506537A (en) | 2018-09-07 |
| CN108506537B true CN108506537B (en) | 2024-07-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810712754.8A Active CN108506537B (en) | 2018-07-03 | 2018-07-03 | Water supply pressure reducing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108506537B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208474577U (en) * | 2018-07-03 | 2019-02-05 | 江苏省华扬太阳能有限公司 | New water supply decompression device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100481403B1 (en) * | 2005-01-28 | 2005-04-12 | 주식회사 바램 | Pressure reducing and pressure sustaining control valve system |
| KR100698229B1 (en) * | 2005-02-02 | 2007-03-21 | (주) 두두에너텍 | Fluid supply automatic control system using pressure change |
| CN200946667Y (en) * | 2006-08-08 | 2007-09-12 | 刘庆荣 | Smart water meter control valve |
| CN201100504Y (en) * | 2007-08-30 | 2008-08-13 | 杨建华 | Pipeline negative pressure check valve |
| KR101122763B1 (en) * | 2011-09-19 | 2012-03-23 | 조진식 | Valve system of proportional pressure control related to liquid flow rate |
| CN203248793U (en) * | 2013-05-03 | 2013-10-23 | 扬中市阀门厂有限公司 | Pressure reducing valve |
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2018
- 2018-07-03 CN CN201810712754.8A patent/CN108506537B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208474577U (en) * | 2018-07-03 | 2019-02-05 | 江苏省华扬太阳能有限公司 | New water supply decompression device |
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| Publication number | Publication date |
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| CN108506537A (en) | 2018-09-07 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: No.22, Muyang Road, high tech Industrial Development Zone, Yangzhou City, Jiangsu Province Applicant after: Jiangsu Huayang New Energy Co.,Ltd. Address before: No.22, Muyang Road, high tech Industrial Development Zone, Yangzhou City, Jiangsu Province Applicant before: JIANGSU HUAYANG SOLAR ENERGY Co.,Ltd. Country or region before: China |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Water supply pressure reducing device Granted publication date: 20240719 Pledgee: Jiangsu Yangzhou Rural Commercial Bank Co.,Ltd. Hanjiang Branch Pledgor: Jiangsu Huayang New Energy Co.,Ltd. Registration number: Y2025980065038 |