CN202972081U - Self-operated differential pressure balance valve - Google Patents
Self-operated differential pressure balance valve Download PDFInfo
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- CN202972081U CN202972081U CN 201220571207 CN201220571207U CN202972081U CN 202972081 U CN202972081 U CN 202972081U CN 201220571207 CN201220571207 CN 201220571207 CN 201220571207 U CN201220571207 U CN 201220571207U CN 202972081 U CN202972081 U CN 202972081U
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Abstract
The utility model provides a self-operated differential pressure balance valve, and belongs to the technical field of valve manufacturing. The self-operated differential pressure balance valve solves the problems that the existing self-operated differential pressure balance valve is low in adjustment precision and small in application scope. The self-operated differential pressure balance valve comprises a valve body, wherein one end of the valve body is an inlet end; the other end of the valve body is an outlet end; the valve body is internally provided with a valve plug; the interior of the valve body is fixedly connected with a separator; the separator divides the valve body into an upper cavity and a lower cavity, namely a water supply cavity and a balance cavity; the balance cavity is internally provided with a diaphragm; the diaphragm divides the balance cavity into an upper cavity and a lower cavity, namely an upper balance cavity and a lower balance cavity; the valve plug is positioned in the water supply cavity, penetrate through the separator, and is fixedly connected with the diaphragm; a pressure guide hole allowing the upper balance cavity to be communicated with the inlet end is formed in the valve body; a pressure guide opening is formed in the lower balance cavity; and the two ends of a pressure guide pipe are positioned at the pressure guide opening and the outlet end respectively. The self-operated differential pressure balance valve has the advantages of high stability, high differential pressure adjustment accuracy, and the like.
Description
Technical field
The utility model belongs to technical field of valve manufacturing, relates to a kind of equilibrium valve, particularly a kind of self-balanced differential pressure valve.
Background technique
After household metering was carried out by country, the user was in energy-conservation purpose, was all carrying out the user from main regulation, when the variation of user's valve opening causes that flow changes, other users' flow also changes thereupon, the flow that requires during off-design, thus cause the dynamic state hydraulic disorder of system.Therefore, guarantee that in variable flow system, the Dynamic Water equilibrium of forces more and more is taken seriously, and in the Heating,Ventilating and Air Conditioning (HVAC) water system, to the requirement of system quality and improving constantly of awareness of saving energy, the flow-changing water system occupies more and more important position due to people.
The variable flow system dynamic hydraulic equilibrium be generally by dynamic hydraulic equilibrium equipment with the two-tube system core point place of being connected in parallel on, pressure differential maintain is realized in the design pressure difference scope.Therefore, variable-flow dynamic hydraulic equilibrium system also can be called the flow pressure system.The Pumps in Variable Water Volume System under Pressure Difference system comprises pressure difference valve etc., pressure difference valve is the self-upright pressure-differential equilibrium valve, it relies on flowing medium self pressure to change and automatically adjusts, and automatically eliminates the residual pressure of pipeline and the flow deviation that pressure surge causes, the pressure reduction of constant user's feed-water end and waterexit end.Pressure difference valve is specially adapted in household metering or automatic control system, helps the stable system operation.For example, Chinese patent discloses a kind of piston type multi-spraying hole pressure-reducing valve [patent No.: 200920142553.5; Notice of authorization number: CN201386795Y], it comprises valve body, valve rod, flap and piston etc., piston is divided into two neighbouring cavitys with valve body, be provided with spring between piston top and valve body, bottom and the flap of piston are connected, and have at the effect lower piston of the elastic force of spring the trend that moves down.
Although above-mentioned reduction valve is also the Pumps in Variable Water Volume System under Pressure Difference system, the pressure reduction of the constant user's feed-water end of energy and waterexit end, but this reduction valve stability is not high, flap is not set in reduction valve springs up the mechanism of in process, it being led, flap deflection may occur in moving process, do not reach specified position, degree of regulation is low, and whole valve body can not regulate the pilot pressure of self, can only be fit to some specific working environments, and using scope is little.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, provides a kind of stability height and pressure reduction to regulate the high self-balanced differential pressure valve of accuracy.
the purpose of this utility model can realize by following technical proposal: a kind of self-balanced differential pressure valve, comprise the inner valve body of cavity that is, one end of valve body is entrance point, the other end is outlet end, has spool in valve body, it is characterized in that, be fixed with divider and divider in described valve body valve body is divided into two cavitys in up and down: water flowing chamber and counter balance pocket, have diaphragm and diaphragm in described counter balance pocket counter balance pocket is divided into two cavitys in up and down: upper counter balance pocket and lower counter balance pocket, above-mentioned spool is arranged in the water flowing chamber and passes divider and diaphragm is connected, has the pressure guide hole that upper counter balance pocket and entrance point are linked on described valve body, has the pilot port on described lower counter balance pocket, the two ends of one PRESSURE PIPE lay respectively at pilot port and outlet end place.
the entrance point of this self-upright pressure-differential equilibrium valve links by the upper counter balance pocket of pressure guide hole and valve body, outlet end passes through PRESSURE PIPE, the lower counter balance pocket of pilot port and valve body links, when the pressure of entrance point or outlet end changes, pass to upper counter balance pocket or the lower counter balance pocket of valve body by pressure guide hole or PRESSURE PIPE, make the interior diaphragm of counter balance pocket because the variation of its up and down pressure reduction moves up or down, spool in the moving belt moving valve water flowing chamber of diaphragm moves up or down, thereby change the circulation area of valve inner, make counter balance pocket interior diaphragm pressure up and down reach new balance.
In above-mentioned a kind of self-balanced differential pressure valve, described divider comprises the tubular guide portion of fixing part and bottom that top is in the form of annular discs, and above-mentioned spool and divider guide portion inboard are complementary.Fixing part is fixed on valve body, and guide portion is fixed on the connection position of valve body entrance point and outlet end, the inboard basic drive fit of the spool outside and guide portion, and fluid can not pass through between spool and guide portion, and degree of regulation is high.
In above-mentioned a kind of self-balanced differential pressure valve, described divider sidepiece has the water port.Spool is the tubular of hollow, fluid can only be from the entrance point of the valve body inside by spool, flow to again the outlet end of valve body by the water port of divider sidepiece, spool move up and down the size that changes the water port circulation area, thereby the circulation area of control valve body inside.
In above-mentioned a kind of self-balanced differential pressure valve, have adjusting handle outside described valve body, have the controlling mechanism that can regulate the diaphragm position between adjusting handle and diaphragm.The rotation adjusting handle changes the upper-lower position of diaphragm in counter balance pocket by controlling mechanism, with the preset pressure of control valve body outlet end, according to the actual conditions difference, different preset pressure is set, and using scope is wide.
In above-mentioned a kind of self-balanced differential pressure valve, described controlling mechanism comprises the screw rod that is connected with adjusting handle and circumferentially is connected in regulating block in counter balance pocket, regulating block is enclosed within on screw rod and both are threaded, be provided with spring between described regulating block and diaphragm, diaphragm has the trend that moves down under the elastic force effect of spring.Regulating block is connected with screw flight, and regulating block links by screw rod and adjusting handle, by the rotation adjusting handle, moves on regulating block or moves down, and makes the elastic force of spring weaken or strengthen, and make and move on diaphragm or move down, thus the preset pressure of change valve outlet end.
In above-mentioned a kind of self-balanced differential pressure valve, described counter balance pocket is along thread spindle to the guiding groove with bar shaped, and described regulating block sidepiece is embedded in guiding groove.The rotation adjusting handle makes regulating block move up and down along the guiding groove of counter balance pocket inboard, and guiding groove plays guiding and spacing to the movement of regulating block, regulating block moves steadily, the direction that makes spring force all the time along counter balance pocket axially, can not be offset, accuracy is high.
In above-mentioned a kind of self-balanced differential pressure valve, described spool is connected on a valve rod, and valve rod passes fixing part and above-mentioned diaphragm is connected.Moving up and down by valve rod band movable valve plug of diaphragm moves up and down, and changes the size of the circulation area of valve inner.
Compared with prior art, the self-balanced differential pressure valve that provides of the utility model has the following advantages:
1, the inboard basic drive fit of the outside of the spool of this self-balanced differential pressure valve and divider guide portion, guide portion plays guiding and spacing effect to moving up and down of spool, and spool moves steadily, is not offset, and pressure reduction adjusting accuracy is high.
2, the pressure guide hole of this self-balanced differential pressure valve is positioned at the outer side wall of valve body, save arrangement space, and pressure guide hole is not fragile, and the accuracy of transmission of pressure is high, long service life.
Description of drawings
Fig. 1 is the overall structure schematic diagram of this self-balanced differential pressure valve.
In figure, 1, valve body; 2, entrance point; 3, outlet end; 4, spool; 5, divider; 5a, fixing part; 5b, guide portion; 6, water flowing chamber; 7, counter balance pocket; 7a, upper counter balance pocket; 7b, lower counter balance pocket; 8, diaphragm; 9, pressure guide hole; 10, pilot port; 11, PRESSURE PIPE; 12, adjusting handle; 13, screw rod; 14, regulating block; 15, spring; 16, guiding groove; 17, valve rod.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this self-upright pressure-differential equilibrium valve comprises valve body 1, spool 4, valve rod 17, divider 5, diaphragm 8 and adjusting handle 12.
The inside of valve body 1 is cavity, and an end is entrance point 2, and the other end is outlet end 3.Valve body 1 entrance point 2 is provided with divider 5 with the connectivity part of outlet end 3, and divider 5 is comprised of the fixing part 5a on top and the guide portion 5b of bottom, and fixing part 5a is in the form of annular discs, valve body 1 is divided into the water flowing chamber 6 of the counter balance pocket 7 on top and bottom; Guide portion 5b is tubular, is positioned at the joint of valve body 1 entrance point 2 and outlet end 3.
The inside of spool 4 is hollow shape and is positioned at guide portion 5b, and the one end is connected mutually with valve rod 17, and valve rod 17 is upward through fixing part 5a and diaphragm 8 is connected, and spool 4 and diaphragm 8 are linked.The basic drive fit of the madial wall of the outer side wall of spool 4 and guide portion 5b, the medium position of guide portion 5b has and runs through the inboard water port with the outside of guide portion 5b, and fluid can only flow to the outlet end 3 of valve body 1 in the inside from the entrance point 2 of valve body 1 along spool 4 again by the water port of guide portion 5b sidewall.
Has diaphragm 8 in the counter balance pocket 7 of valve body 1, diaphragm 8 is divided into upper counter balance pocket 7a and lower counter balance pocket 7b with counter balance pocket 7, the pressure guide hole 9 of upper counter balance pocket 7a by valve body 1 outer side wall inside links with the entrance point 2 of valve body 1, lower counter balance pocket 7b has pilot port 10, pilot port 10 links by the outlet end 3 of nut PRESSURE PIPE 11 with valve body 1, the pressure that is valve body 1 entrance point 2 is identical with the pressure of upper counter balance pocket 7a, and the pressure of valve body 1 outlet end 3 is identical with the pressure of lower counter balance pocket 7b.
also has screw rod 13 in the counter balance pocket 7 of valve body 1, spring 15 and regulating block 14, one end of screw rod 13 passes outside valve body 1, and closely be connected with the adjusting handle 12 in valve body 1 outside, regulating block 14 is enclosed within on screw rod 13, and both are threaded, regulating block 14 circumferentially is connected in counter balance pocket 7a, the sidepiece of regulating block 14 embed counter balance pocket 7a on valve body 1 along thread spindle to bar shaped guiding groove 16 in, one end of spring 15 is resisted against on regulating block 14, the other end is resisted against on diaphragm 8, spring 15 is to be in compressed state, diaphragm 8 has the trend that moves down under the effect of spring 15 elastic force.By screw rod 13, regulating block 14 is moved up when rotating adjusting handle 12, spring 15 is upheld, and elastic force weakens, and the diaphragm 8 in counter balance pocket 7 is because the pressure minimizing of upper counter balance pocket 7a moves up, thus the preset pressure of change valve body 1 outlet end 3; When rotation adjusting handle 12 moves down regulating block 14 by screw rod 13, spring 15 is further compressed, the elastic force of spring 15 strengthens, and the diaphragm 8 in counter balance pocket 7 is because the pressure enhancing of upper counter balance pocket 7a moves down, thus the preset pressure of change valve body 1 outlet end 3.
This self-upright pressure-differential equilibrium valve is when work, when the pressure of valve body 1 entrance point 2 increases or the pressure of valve body 1 outlet end 3 when reducing, the pressure that pressure increases or lower counter balance pocket 7b is interior in counter balance pocket 7a is reduced, the pressure of diaphragm 8 upsides is greater than the pressure of its downside, diaphragm 8 is moved down, thereby band movable valve plug 4 moves down, make the circulation area increase of guide cylinder sidepiece water port, thereby increase the pressure of valve body 1 outlet end 3, the pressure of lower counter balance pocket 7b is increased, finally make the pressure of diaphragm both sides Shang Xia 8 identical, reach new balance.When the pressure of valve body 1 entrance point 2 reduces or the pressure of valve body 1 outlet end 3 when increasing, the pressure that pressure reduces or lower counter balance pocket 7b is interior in counter balance pocket 7a is increased, the pressure of diaphragm 8 downsides is greater than the pressure of its upside, diaphragm 8 is moved up, thereby band movable valve plug 4 moves up, make the circulation area minimizing of guide cylinder sidepiece water port, thereby reduce the pressure of valve body 1 outlet end 3, the pressure of lower counter balance pocket 7b is reduced, finally make the pressure of diaphragm both sides Shang Xia 8 identical, reach new balance.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used the terms such as valve body 1, entrance point 2, outlet end 3, spool 4, divider 5, fixing part 5a, guide portion 5b, water flowing chamber 6, counter balance pocket 7, upper counter balance pocket 7a, lower counter balance pocket 7b, diaphragm 8, pressure guide hole 9, pilot port 10, PRESSURE PIPE 11, adjusting handle 12, screw rod 13, regulating block 14, spring 15, guiding groove 16, valve rod 17, do not get rid of the possibility of using other term.Using these terms is only in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (7)
1. self-balanced differential pressure valve, comprise the inner valve body of cavity (1) that is, one end of valve body (1) is entrance point (2), the other end is outlet end (3), has spool (4) in valve body (1), it is characterized in that, be fixed with divider (5) and divider (5) in described valve body (1) valve body (1) is divided into two cavitys in up and down: water flowing chamber (6) and counter balance pocket (7), have diaphragm (8) and diaphragm (8) in described counter balance pocket (7) counter balance pocket (7) is divided into two cavitys in up and down: upper counter balance pocket (7a) and lower counter balance pocket (7b), above-mentioned spool (4) is arranged in water flowing chamber (6) and passes divider (5) and is connected with diaphragm (8), has the pressure guide hole (9) that upper counter balance pocket (7a) and entrance point (2) are linked on described valve body (1), has pilot port (10) on described lower counter balance pocket (7b), the two ends of one PRESSURE PIPE (11) lay respectively at pilot port (10) and outlet end (3) is located.
2. a kind of self-balanced differential pressure valve according to claim 1, it is characterized in that, described divider (5) comprises the tubular guide portion of top fixing part in the form of annular discs (5a) and bottom (5b), and above-mentioned spool (4) is complementary with divider (5) guide portion (5b) inboard.
3. a kind of self-balanced differential pressure valve according to claim 2, is characterized in that, described divider (5) sidepiece has the water port.
4. according to claim 1 and 2 or 3 described a kind of self-balanced differential pressure valves, is characterized in that, has adjusting handle (12) outside described valve body (1), has the controlling mechanism that can regulate diaphragm (8) position between adjusting handle (12) and diaphragm (8).
5. a kind of self-balanced differential pressure valve according to claim 4, it is characterized in that, described controlling mechanism comprises the screw rod (13) that is connected with adjusting handle (12) and circumferentially is connected in the interior regulating block (14) of counter balance pocket (7), regulating block (14) is enclosed within screw rod (13) upward and both are threaded, be provided with spring (15) between described regulating block (14) and diaphragm (8), diaphragm (8) has the trend that moves down under the elastic force effect of spring (15).
6. according to claim 1 and 2 or 3 described a kind of self-balanced differential pressure valves, is characterized in that, described counter balance pocket (7) is along thread spindle to the guiding groove with bar shaped (16), and described regulating block (14) sidepiece is embedded in guiding groove (16).
7. according to claim 2 or 3 described a kind of self-balanced differential pressure valves, is characterized in that, described spool (4) is connected on a valve rod (17), and valve rod (17) passes fixing part (5a) and is connected with above-mentioned diaphragm (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220571207 CN202972081U (en) | 2012-11-01 | 2012-11-01 | Self-operated differential pressure balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220571207 CN202972081U (en) | 2012-11-01 | 2012-11-01 | Self-operated differential pressure balance valve |
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| Publication Number | Publication Date |
|---|---|
| CN202972081U true CN202972081U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220571207 Expired - Fee Related CN202972081U (en) | 2012-11-01 | 2012-11-01 | Self-operated differential pressure balance valve |
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| CN (1) | CN202972081U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594342A (en) * | 2015-10-15 | 2017-04-26 | 北京海林绿建节能技术有限公司 | Pressure difference balance valve |
| CN108730575A (en) * | 2018-05-30 | 2018-11-02 | 华东矿用设备有限公司 | A kind of small size two-way valve |
| CN108758008A (en) * | 2018-05-30 | 2018-11-06 | 华东矿用设备有限公司 | A kind of two-way reversal valve of adjustable type |
| CN108758009A (en) * | 2018-05-30 | 2018-11-06 | 华东矿用设备有限公司 | A kind of pressure adjustable type pressure-control valve |
| CN109114272A (en) * | 2018-10-09 | 2019-01-01 | 四川勃朗蜀威科技有限公司 | Conducive to taking valve body in the self-operated type of adjusting |
| CN110296259A (en) * | 2018-03-23 | 2019-10-01 | 浙江三花智能控制股份有限公司 | Electric expansion valve and refrigeration system with it |
| CN111089190A (en) * | 2020-01-03 | 2020-05-01 | 中车青岛四方车辆研究所有限公司 | Differential pressure valve and rail vehicle |
| CN111795193A (en) * | 2020-07-22 | 2020-10-20 | 孔令香 | High-stability self-operated pressure regulating valve |
| CN113566004A (en) * | 2021-06-07 | 2021-10-29 | 中建三局第三建设工程有限责任公司 | Flow control valve, air-conditioning water system and hydraulic balance debugging method thereof |
-
2012
- 2012-11-01 CN CN 201220571207 patent/CN202972081U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594342B (en) * | 2015-10-15 | 2019-03-15 | 北京优能智慧节能科技有限公司 | Differential pressure balancing valve |
| CN106594342A (en) * | 2015-10-15 | 2017-04-26 | 北京海林绿建节能技术有限公司 | Pressure difference balance valve |
| CN110296259B (en) * | 2018-03-23 | 2021-02-26 | 浙江三花智能控制股份有限公司 | Electronic expansion valve and refrigeration system with same |
| CN110296259A (en) * | 2018-03-23 | 2019-10-01 | 浙江三花智能控制股份有限公司 | Electric expansion valve and refrigeration system with it |
| CN108758009A (en) * | 2018-05-30 | 2018-11-06 | 华东矿用设备有限公司 | A kind of pressure adjustable type pressure-control valve |
| CN108758008A (en) * | 2018-05-30 | 2018-11-06 | 华东矿用设备有限公司 | A kind of two-way reversal valve of adjustable type |
| CN108730575A (en) * | 2018-05-30 | 2018-11-02 | 华东矿用设备有限公司 | A kind of small size two-way valve |
| CN109114272A (en) * | 2018-10-09 | 2019-01-01 | 四川勃朗蜀威科技有限公司 | Conducive to taking valve body in the self-operated type of adjusting |
| CN109114272B (en) * | 2018-10-09 | 2024-04-23 | 四川勃朗蜀威科技有限公司 | Self-operated internal valve beneficial to adjustment |
| CN111089190A (en) * | 2020-01-03 | 2020-05-01 | 中车青岛四方车辆研究所有限公司 | Differential pressure valve and rail vehicle |
| CN111795193A (en) * | 2020-07-22 | 2020-10-20 | 孔令香 | High-stability self-operated pressure regulating valve |
| CN113566004A (en) * | 2021-06-07 | 2021-10-29 | 中建三局第三建设工程有限责任公司 | Flow control valve, air-conditioning water system and hydraulic balance debugging method thereof |
| CN113566004B (en) * | 2021-06-07 | 2022-12-20 | 中建三局第三建设工程有限责任公司 | Flow control valve, air-conditioning water system and hydraulic balance debugging method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: VOLDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. Free format text: FORMER OWNER: ZHUO DANCHUN Effective date: 20131216 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 317608 TAIZHOU, ZHEJIANG PROVINCE TO: 223900 SUQIAN, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20131216 Address after: Suqian City, Jiangsu province Shuang'gou 223900 west of Sihong County Economic Development Zone No. 388 Patentee after: WOERDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. Address before: Taizhou City, Zhejiang province 317608 Yuhuan County Lu Pu Industrial Park Zhejiang world HVAC technology Co Ltd Patentee before: Zhuo Danchun |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170125 Address after: Jiangdong Road Jianye District of Nanjing City, Jiangsu province 210019 C Wanda Center No. 108 Room 501 Patentee after: Jiangsu Wo Hui Industrial Technology Group Limited Address before: Suqian City, Jiangsu province Shuang'gou 223900 west of Sihong County Economic Development Zone No. 388 Patentee before: WOERDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170327 Address after: Suqian City, Jiangsu province Shuang'gou 223900 west of Sihong County Economic Development Zone No. 388 Patentee after: WOERDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. Address before: Jiangdong Road Jianye District of Nanjing City, Jiangsu province 210019 C Wanda Center No. 108 Room 501 Patentee before: Jiangsu Wo Hui Industrial Technology Group Limited |
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| 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: 20130605 Termination date: 20171101 |