CN2206394Y - Combined pressure reducing valve - Google Patents
Combined pressure reducing valve Download PDFInfo
- Publication number
- CN2206394Y CN2206394Y CN 94231022 CN94231022U CN2206394Y CN 2206394 Y CN2206394 Y CN 2206394Y CN 94231022 CN94231022 CN 94231022 CN 94231022 U CN94231022 U CN 94231022U CN 2206394 Y CN2206394 Y CN 2206394Y
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- Prior art keywords
- valve
- utility
- main valve
- model
- pressure
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- Expired - Fee Related
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- Safety Valves (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The utility model discloses a combined pressure reducing valve, which belongs to the technical field of pressure reducing and balancing valves and is used for feeding water and reducing pressure for various pipe lines or equipment in hydroelectric enterprises. The utility model is also used for industries, such as chemical industry, petroleum industry, metallurgical industry, etc. Compared with similar products, the utility model has higher adaptability, stability, reliability and technical index performance. On the basis of a main valve and a valve flap of the main valve, the utility model is characterized in that the utility model is provided with a piston, a spring, a control valve, a throttling pump, a nozzle, a filter, a connecting pipeline and a control tube. Through automatic control, no matter how the pressure and the flow rate of a water inlet change, the pressure reducing value of a water outlet is always maintained in the range needed by users. Fluctuant high pressure can be changed into constant low pressure by automatic control.
Description
The utility model belongs to decompression equilibrium valve technical field.
Hydropower Enterprise ' is used for the valve that water reduces pressure on all kinds of pipelines or the equipment and has deficiency at structure, aspect of performance at present, thereby all is difficult to satisfy the demand of water decompression on Hydropower Enterprise ' pipeline or the equipment in applicability, stability, reliability and some the key technical indexes of product.
The purpose of this utility model is to provide a kind of combined relief valve, substantive distinguishing features and progress are arranged on the structural design, by automatic control water outlet pressure is transferred to the required determined value of user, variation regardless of water intake pressure, the variation size of water intake flow no matter, the water outlet pressure relief value remains at the required scope of user, and the high pressure of fluctuation can be controlled automatically becomes constant low pressure.
The utility model is realized in the following manner: this combined relief valve has main valve 1 and is contained in the interior main valve flap 5 of its body, and feature is on main valve flap 5 tops piston 7 and spring 8 to be housed, and piston 7 is combined into a rigid body with main valve flap 5; Have control valve 4, throttling pump 9, nozzle 3, filter 2 and connecting tube 10 thereof in main valve 1 external body, also have control valve 6; Control valve 4, throttling pump 9, filter 2 usefulness connecting tubes 10 connect, and its annexation is as follows: control valve 4 one ends connect water outlet place in main valve 1 body, and end is connected with throttling pump 9 in addition; Filter 2 one ends connect water inlet in main valve 1 body, and end is connected with throttling pump 9 in addition; Connecting tube 10 has nozzle 3 with throttling pump 9 joints; Control valve 6 is communicated with in throttling pump 9 and main valve 1 body, and its pipe outlet leads to the below of piston 7; Described control valve 4 is made of spring, flap, valve seat, an elastomer diaphragm of valve body, valve gap and interior dress.
The utility model is reasonable in design, and cost is low, produces easy to maintenance.Be used for water decompression on all kinds of pipelines of Hydropower Enterprise ' or the equipment, also be applicable to industries such as chemical industry, oil, metallurgy.It is suitable for, reliability and the key technical indexes, product performance all are higher than the like product in the background technique.
Now in conjunction with the accompanying drawings the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
With reference to Fig. 1, the utility model has members such as piston 7, spring 8 and control valve 4, throttling pump 9, nozzle 3, filter 2, connecting tube 10, control valve 6 on main valve 1 and main valve flap 5 bases.The structure manufacture precision.The water entrance valve has excellent sealing performance.Filter 2 has the function of filtering and washing, and its effect is with dirt filtering tiny in the medium, makes control valve 4 have the good operation characteristic, and the dirt of filtering is by washing and drain into outside the valve by the water in the by-pass pipe.When flushing, do not influence normal operation.It is as follows that the utility model is controlled the decompression principle automatically: main valve 1 water inlet is the zone of high pressure, and the water outlet place is a low pressure area.Be that control valve 4 is closed condition at first automatically under zero the state when the low pressure area water flow of main valve 1.When water withdrawal was zero, under the pressure effect of zone of high pressure, water inlet, high-pressure water flow was to the top of main valve flap 5, its pressure acts on the below of piston 7 by nozzle 3, control valve 6, overcomes the elastic force of spring 8, at this moment, main valve flap 5 moves upward, and closes runner, and valve is in closed condition; Otherwise when being used to fetch water, the water outlet low pressure area forms flow, control valve 4 is opened at first automatically, and bypass duct is connecting tube 10 circulations, along with water withdrawal increases, current sharply increase in the connecting tube 10, the static pressure of throttling pump 9 reduces, and this pressure falls through control valve 6 and reaches piston 7 belows, and at this moment spring 8 elastic force are preponderated, main valve flap 5 is moved downward, main valve flap 5 opens to certain aperture, opens runner, main valve 1 work.Thereby the high pressure of fluctuation can be kept constant low pressure by automatic control.The utility model in the course of the work, automatically controlled the aperture of main valve flap 5 by control valve 4 and spring 8, promptly along with the variation of inlet/outlet pressure, a correction value appears in the aperture of main valve flap 5 immediately, thereby makes outlet pressure stably remain on a low pressure values required after regulating.The work of control valve 4 is the elastomer diaphragm drive flap motions by self structure, regulates the control main valve voluntarily by flap and valve seat area of passage.Like this, by control valve 4 and spring 8 automatic controls outlet pressure is transferred to the required determined value of user.
Claims (1)
1, a kind of combined relief valve has main valve [1] and is contained in the interior main valve flap [5] of its body, it is characterized in that:
On main valve flap [5] top piston [7] and spring [8] are housed, piston [7] is combined into a rigid body with main valve flap [5];
Have control valve [4], throttling pump [9], nozzle [3], filter [2] and connecting tube [10] thereof in main valve [1] external body, also have control valve [6]; Control valve [4], throttling pump [9], filter [2] connect with connecting tube [10], and its annexation is as follows: control valve [4] one ends connect water outlet place in main valve [1] body, and end is connected with throttling pump [9] in addition; Filter [2] one ends connect water inlet in main valve [1] body, and end is connected with throttling pump [9] in addition; Connecting tube [10] has nozzle [3] with throttling pump [9] joint; Control valve [6] is communicated with in throttling pump [9] and main valve [1] body, and its pipe outlet leads to the below of piston [7];
Described control valve [4] is made of spring, flap, valve seat, an elastomer diaphragm of valve body, valve gap and interior dress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94231022 CN2206394Y (en) | 1994-12-17 | 1994-12-17 | Combined pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94231022 CN2206394Y (en) | 1994-12-17 | 1994-12-17 | Combined pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2206394Y true CN2206394Y (en) | 1995-08-30 |
Family
ID=33842980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94231022 Expired - Fee Related CN2206394Y (en) | 1994-12-17 | 1994-12-17 | Combined pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2206394Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025238B (en) * | 2006-02-17 | 2010-08-11 | Novita株式会社 | Pressure reducing valve |
| CN101298890B (en) * | 2008-03-04 | 2012-01-04 | 浙江沃尔达铜业有限公司 | Adjustable compression release valve |
| CN102392911A (en) * | 2011-11-15 | 2012-03-28 | 浙江迎日阀门制造有限公司 | Diaphragm type pressure reducing valve |
| CN102498323A (en) * | 2009-05-19 | 2012-06-13 | 科瓦尔株式会社 | Pressure reducing valve |
| CN105485389A (en) * | 2014-10-13 | 2016-04-13 | 湘潭中基电站辅机制造有限公司 | Piston type pressure reducing valve |
| CN106337965A (en) * | 2015-07-06 | 2017-01-18 | 艾默生过程管理调节技术公司 | Fluid Control Apparatus Having Flow Restrictors |
| CN109140011A (en) * | 2018-10-02 | 2019-01-04 | 盐城欧润石化设备制造有限公司 | A kind of self-support pressure reducing valve |
| US10317917B2 (en) | 2015-07-06 | 2019-06-11 | Emerson Process Management Regulator Technologies, Inc. | Fluid control apparatus having variable area flow restrictor |
-
1994
- 1994-12-17 CN CN 94231022 patent/CN2206394Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025238B (en) * | 2006-02-17 | 2010-08-11 | Novita株式会社 | Pressure reducing valve |
| CN101298890B (en) * | 2008-03-04 | 2012-01-04 | 浙江沃尔达铜业有限公司 | Adjustable compression release valve |
| CN102498323A (en) * | 2009-05-19 | 2012-06-13 | 科瓦尔株式会社 | Pressure reducing valve |
| CN102498323B (en) * | 2009-05-19 | 2014-01-22 | 科瓦尔株式会社 | Pressure reducing valve |
| CN102392911A (en) * | 2011-11-15 | 2012-03-28 | 浙江迎日阀门制造有限公司 | Diaphragm type pressure reducing valve |
| CN102392911B (en) * | 2011-11-15 | 2013-04-10 | 浙江迎日阀门制造有限公司 | Diaphragm type pressure reducing valve |
| CN105485389A (en) * | 2014-10-13 | 2016-04-13 | 湘潭中基电站辅机制造有限公司 | Piston type pressure reducing valve |
| CN106337965A (en) * | 2015-07-06 | 2017-01-18 | 艾默生过程管理调节技术公司 | Fluid Control Apparatus Having Flow Restrictors |
| US10317917B2 (en) | 2015-07-06 | 2019-06-11 | Emerson Process Management Regulator Technologies, Inc. | Fluid control apparatus having variable area flow restrictor |
| CN109140011A (en) * | 2018-10-02 | 2019-01-04 | 盐城欧润石化设备制造有限公司 | A kind of self-support pressure reducing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |