CN105465439A - Pressure regulating valve - Google Patents
Pressure regulating valve Download PDFInfo
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- CN105465439A CN105465439A CN201410372694.1A CN201410372694A CN105465439A CN 105465439 A CN105465439 A CN 105465439A CN 201410372694 A CN201410372694 A CN 201410372694A CN 105465439 A CN105465439 A CN 105465439A
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- pressure
- valve
- pressure regulator
- regulator valve
- controlling element
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Abstract
The invention discloses a pressure regulating valve which comprises an actuator and a valve body. A communication channel is formed between a cavity of the valve body and a cavity of the actuator. A pressure tapping tube is further arranged in the cavity of the valve body. One end of the pressure tapping tube is connected with the communication channel, and the other end of the pressure tapping tube is suspended. Due to the embodiment of a pressure tapping structure in the pressure regulating valve, the performance of the pressure regulating valve in a flow precision range is improved.
Description
Technical field
The invention belongs to field of fluid control, in particular to a kind of pressure regulator valve, pressure formula pressure regulator valve especially.
Background technique
In the voltage regulator design of interior pressure formula, because need directly to obtain downstream pressure in pressure governor inside, so usually can be communicated with the pressure passage in valve body and final controlling element downstream pressure governor indoor design one.Fig. 1 is the pressure regulator valve schematic diagram of pressure taking structure in straight-through type, and Fig. 2 is pressure taking structure in the straight-through type shown in Fig. 1, in fig. 1 and 2, interior pressure passage is a passage, by this passage, make the gas in downstream enter into final controlling element cavity of resorption, thus obtain the pressure in downstream.What in Fig. 7, curve 1 represented is performance chart in straight-through type shown in Fig. 1 under ways of measure pressure, and as can be seen from curve 1, the poor performance of pressure governor within the scope of flow accuracy, pressure drop is too fast.
Summary of the invention
For solving the problem, the invention provides a kind of embodiment of pressure regulator valve, the interior pressure taking structure design of this pressure regulator valve makes the performance of pressure governor within the scope of flow accuracy improve.
The pressure regulator valve that the embodiment of the present invention provides, comprising:
Final controlling element, valve body,
Communicating passage is provided with between the cavity of described valve body and the cavity of described final controlling element,
In the cavity of described valve body, be also provided with pressure pipe, described pressure pipe one end connects described communicating passage, and the described pressure pipe the other end is unsettled.
Above-mentioned communicating passage is at least two, and described pressure pipe is connected with at least one in described communicating passage.
The free end of above-mentioned pressure pipe is arranged on the direction along gas or flow direction.
The cavity of above-mentioned valve body comprises entrance pressure chamber and goes out to press chamber, goes out to press in chamber described in described pressure pipe is arranged at.
Above-mentioned pressure regulator valve comprises
Valve rod and valve seat, described final controlling element by one end of described valve rod promote described valve seat described entrance pressure chamber or described in go out to press chamber to move;
Guiding device, is socketed on described valve rod, and described guiding device is located between described valve body and described final controlling element, and described communicating passage can be arranged on described guiding device.
Above-mentioned communicating passage is distributed in the symmetrical both sides of described valve rod axis.
Above-mentioned guiding device can be one-body molded with described final controlling element.
Above-mentioned communicating passage is cylindrical hole.
Embodiment provided by the invention, by arranging passage between connecting valve body cavity body and final controlling element cavity and pressure pipe, carrys out the downstream pressure of perception valve body, thus improves pressure governor in the too fast performance of flow accuracy scope internal drop.
Accompanying drawing explanation
Fig. 1 is the pressure regulator valve schematic diagram of pressure taking structure in correlation technique straight-through type;
Fig. 2 be Fig. 1 straight-through type in pressure taking structure;
Fig. 3 is the pressure regulator valve embodiment schematic diagram of a kind of interior pressure taking structure with pressure pipe that the embodiment of the present invention provides;
Fig. 4 is with pressure taking structure in the single hole of pressure pipe in Fig. 3;
Fig. 5 is a kind of pressure regulator valve schematic diagram with pressure taking structure in the diplopore of pressure pipe that the embodiment of the present invention provides;
Fig. 6 is with pressure taking structure in the diplopore of pressure pipe in Fig. 5;
Fig. 7 is the performance chart under Fig. 1, Fig. 3 and Fig. 5 tri-kinds of ways of measure pressure;
Fig. 8 be the band pressure pipe that the embodiment of the present invention provides diplopore in the another kind of pressure regulator valve schematic diagram of pressure taking structure.
Figure number illustrates: 11-guiding device, 12-passage, 13-pressure pipe, 2-valve body, 21-entrance pressure mouth, 22-goes out to press mouth, 23-valve pocket, 231-entrance pressure chamber, 232-goes out to press chamber, 233-valve port, 3-final controlling element, 311-first membrane cover, 312-second membrane cover, 321-diaphragm, 322-first lamina membranacea, 323-second lamina membranacea, 331-spring, 332-adjustable lever, 34-lever, 4-valve seat, 5-valve rod.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, technological scheme of the present invention is described further.
Figure 3 shows that the pressure regulator valve schematic diagram of the interior pressure taking structure of band pressure pipe, this pressure regulator valve comprises valve body 2, final controlling element 3, valve seat 4, valve rod 5, guiding device 11 and pressure pipe 13.Wherein valve body 2 comprises entrance pressure mouth 21, goes out to press mouth 22 and valve pocket 23.Final controlling element 3 is fixedly connected with valve body 2.Valve seat 4 is arranged in valve pocket 23 actively.Valve rod 5 comprises first end and the second end, and the first end of described valve rod is placed in described final controlling element 3, and the second end of described valve rod is fixed in described valve seat 4, and described valve rod 5 can move along described valve rod axis direction jointly together with described valve seat 4.Guiding device 11 is fixed on final controlling element 3 or valve body 2, and when valve rod 5 moves, guiding device 11 pairs of valve rods 5 lead.
As shown in Figures 3 and 4, the interior pressure taking structure of this pressure regulator valve comprises the passage 12 and pressure pipe 13 that are communicated with final controlling element 3 and valve pocket 23, and described passage 12 is arranged on guiding device 11; One end of described pressure pipe is communicated with valve pocket 23, and the other end of described pressure pipe is communicated with described passage 12.
Valve pocket 23 comprise be communicated with entrance pressure mouth 21 entrance pressure chamber 231, with go out to press mouth 22 to be communicated with go out to press chamber 232 and be communicated with entrance pressure chamber 231 and the valve port 233 going out to press chamber 232.
Owing to being the size of modulating valve outlet pressure, so pressure pipe 13 is preferably placed in out (because going out to press chamber to be positioned at pressure mouth side) in pressure chamber 232, the pressure effect at this moment obtained is better.
The pressure regulator valve that this disclosure provides, inlet pressure can be gas pressure, also can be fluid pressure, and correspondingly, outlet pressure can be gas pressure, also can be fluid pressure.If pressure pipe is arranged along the flow direction of gas or liquid, the pressure effect so obtained can be better.
What in Fig. 7, curve 2 represented is performance curve under ways of measure pressure shown in Fig. 3, namely with the performance chart under ways of measure pressure in the single hole of pressure pipe.As can be seen from Figure 7, the performance of pressure regulator valve within the scope of flow accuracy is also bad, and voltage rise is too large.
Further, inventor is on the basis of Fig. 4, and the pressure passage corresponding at pressure pressure pipe opens a pressure passage again relative to the opposite side of valve rod, as shown in Figure 6, make two passes pressure simultaneously, finally make the better performances of pressure governor within the scope of flow accuracy.
Particularly, the interior pressure taking structure of this pressure regulator valve is on guiding device 11, arrange the two passes 12 being communicated with final controlling element 3 and valve pocket 23, and wherein a passage 12 is communicated with pressure pipe 13.Preferably, two passes is distributed in the both sides of valve rod axis, and the pressure effect obtained time wherein symmetrical is better.
As shown in Figure 5, the performance curve that what in Fig. 7, curve 3 represented is under ways of measure pressure shown in Fig. 5, namely with the performance chart under ways of measure pressure in the diplopore of pressure pipe for the pressure regulator valve of application diplopore ways of measure pressure.As can be seen from Figure 7, compare curve 1 and curve 2, curve 3 makes the performance of pressure regulator valve within the scope of flow accuracy be greatly improved.
It should be noted that, in the design process, the position of pressure passage is not fixing, can adjust as required.Meanwhile, the size and number of pressure passage also can adjust according to the difference of performance.That is, the quantity of pressure passage can more than two, at this moment pressure pipe can only with one of them channel connection.
In the design process, also can adjust from valve port to the perpendicular distance of pressure passage, thus obtain a more satisfactory performance.Be valve port 233 perpendicular distance to pressure passage 12 for Fig. 6, D, the value of D can adjust in the design process of valve according to required performance.
Above-mentioned guiding device 11 also can be one-body molded with final controlling element 3.
The valve seat 4 be connected with valve rod 5 can be a rubber pad.
Be more than the detailed description that the interior pressure taking structure of this disclosure is applied in modulating valve shown in Fig. 3, other parts below for this modulating valve are described.As shown in Figure 3, final controlling element comprises final controlling element and comprises membrane cover assembly, diaphragm unit, regulator and lever.Wherein, membrane cover assembly comprises the first membrane cover 311 and the second membrane cover 312, first membrane cover 311 is connected with regulator, and the second membrane cover 312 is connected with valve body 2, and the first membrane cover 311 coordinates with the second membrane cover 312 inside forming hollow.Diaphragm unit comprises diaphragm 321, first lamina membranacea 322 and the second lamina membranacea 323, diaphragm 321 is crushed between described first lamina membranacea 322 and described second lamina membranacea 323, and diaphragm 321 is between the first membrane cover 311 and the second membrane cover 312, first lamina membranacea 322 is positioned at the cavity that diaphragm 321 and the first membrane cover 311 are formed, and the second lamina membranacea 323 is positioned at the cavity that diaphragm 321 and the second membrane cover 312 are formed.Regulator comprises spring 331 and adjustable lever 332, it is inner that spring 331 is positioned at the first membrane cover 311, and adjustable lever 332 comprises the 3rd end and the 4th end, and the 3rd end of adjustable lever contacts with spring 331 through the first membrane cover 311,4th end of adjustable lever is unsettled, and adjustable lever is fixed on the first membrane cover 311.Lever 34 shown in Fig. 3 comprises three connecting ends: five terminal, the 6th end and the 7th end, wherein the five terminal of lever is flexibly connected with diaphragm unit, 6th end of lever is flexibly connected with the first end of valve rod 5, and the 7th end of lever is flexibly connected with the second membrane cover 312.
It should be noted that, the lever in Fig. 3 can be also other linkage part, or does not have the structure of lever.
The working principle of pressure regulator valve shown in Fig. 3 is: gas or liquid entrance pressure chamber from entrance pressure opening's edge and entered valve, and as required, user sets required outlet pressure size by the size of adjustable lever Regulation spring power.Under the effect of spring force and valve body downstream pressure (valve body downstream pressure is in change), diaphragm moves left and right, thus drives lever rotation, and then band ovable valve stem vertical motion, change valve seat openings of sizes, thus change downstream pressure, until the size of outlet pressure reaches stationary value.
In figure 3, guiding device 11 as one independently parts be fixed on the second membrane cover 312 with on valve body 2.Certainly, guiding device 11 also can be made with the second membrane cover 312 one-body molded, but not independently parts, as shown in Figure 8, Fig. 8 be band pressure pipe diplopore in the another kind of pressure regulator valve schematic diagram of pressure taking structure.
It should be noted that, the interior pressure taking structure of this disclosure also can be applicable in the pressure regulator valve of any structure, and is not limited to the modulating valve of structure shown in Fig. 3.Such as, Fig. 8 be band pressure pipe diplopore in the another kind of pressure regulator valve schematic diagram of pressure taking structure, this modulating valve does not have lever, ways of measure pressure in the diplopore still adopting band pressure pipe.Parts identical with Fig. 3 in Fig. 8, adopt same label at this, are no longer described in detail.
About the shape of pressure passage, shown in Fig. 3, Fig. 5 and Fig. 8 is cylindrical hole; Certainly, the shape of pressure passage can also be rectangular opening or other.Pressure passage shown in Fig. 3 only has one, and diameter is identical up and down; Pressure passage shown in Fig. 5 has two, and the upper and lower diameter of pressure passage wherein connecting pressure pipe is identical, and the channel upper diameter of entrance pressure side is greater than lower diameter; Pressure passage shown in Fig. 8 has two, and wherein the diameter up and down of every bar passage is identical, but the channel diameter of entrance pressure side is less than the channel diameter of pressure side.It should be noted that, the diameter up and down of pressure passage is identical different with upper and lower diameter little to the performance impact of pressure regulator valve within the scope of flow accuracy; The diameter of passage is larger, and performance curve can be made to be bent downwardly; The length of pressure pipe is longer, and performance curve is more bent downwardly.
Just as described above, whether be press side pressure pipe along the flow direction of gas or liquid arrange, and the position of pressure passage arranges the impact of performance curve little if affecting the most important factor of performance curve.
There is provided exemplary embodiment to make the disclosure more complete, and pass on its protection domain to those skilled in the art comprehensively.Set forth many details, such as the example of particular elements, apparatus and method, to provide the understanding to comprehensive embodiment of the present disclosure.For a person skilled in the art clearly, need not give particulars, exemplary embodiment can be implemented in many different forms, and should not to be interpreted as limiting the scope of the present disclosure.In some of the exemplary embodiments, well-known process, well-known apparatus structure and well-known technology do not elaborate.
Although term first, second, third, etc. etc. can be used to describe various element, parts or part at this, these elements, parts or part should not limited by these terms; These terms can only for distinguishing element, parts or a part.When this use term as " first ", " second " and other numerical value terms time, its do not comprise order or order, unless explicitly pointed out in context.Therefore, when not departing from the explanation of exemplary embodiment, the following stated first element, parts, part can be interpreted as term first element, parts, part.
Although described various mode of execution of the present invention in detail at this, but should be appreciated that the present invention is not limited to the embodiment described in detail and illustrate here, other modification and variant can be realized when not departing from the spirit and scope of the invention by those skilled in the art.All these modification and variant all fall within the scope of the present invention.And all components described here can be replaced by component equivalent in other technologies.
Claims (8)
1. a pressure regulator valve, comprising:
Final controlling element, valve body,
Communicating passage is provided with between the cavity of described valve body and the cavity of described final controlling element,
It is characterized in that, in the cavity of described valve body, be also provided with pressure pipe, described pressure pipe one end connects described communicating passage, and the described pressure pipe the other end is unsettled.
2. pressure regulator valve according to claim 1, is characterized in that, described communicating passage is at least two, and described pressure pipe is connected with at least one in described communicating passage.
3. pressure regulator valve according to claim 1 and 2, is characterized in that, the free end of described pressure pipe is arranged on the direction along gas or flow direction.
4. pressure regulator valve according to claim 3, is characterized in that, the cavity of described valve body comprises entrance pressure chamber and goes out to press chamber, goes out to press in chamber described in described pressure pipe is arranged at.
5. pressure regulator valve according to claim 4, is characterized in that, described pressure regulator valve comprises
Valve rod and valve seat, described final controlling element by one end of described valve rod promote described valve seat described entrance pressure chamber or described in go out to press chamber to move;
Guiding device, is socketed on described valve rod, and described guiding device is located between described valve body and described final controlling element, and described communicating passage can be arranged on described guiding device.
6. pressure regulator valve according to claim 5, is characterized in that, described communicating passage is distributed in the symmetrical both sides of described valve rod axis.
7. pressure regulator valve according to claim 5, is characterized in that, described guiding device can be one-body molded with described final controlling element.
8. pressure regulator valve according to claim 1, is characterized in that, described communicating passage is cylindrical hole.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410372694.1A CN105465439A (en) | 2014-07-22 | 2014-07-22 | Pressure regulating valve |
| EP15824208.1A EP3196520A4 (en) | 2014-07-22 | 2015-07-22 | Pressure regulating valve |
| PCT/CN2015/084849 WO2016011952A1 (en) | 2014-07-22 | 2015-07-22 | Pressure regulating valve |
| US15/328,419 US10247320B2 (en) | 2014-07-22 | 2015-07-22 | Pressure regulating valve |
| MX2017000931A MX2017000931A (en) | 2014-07-22 | 2015-07-22 | Pressure regulating valve. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410372694.1A CN105465439A (en) | 2014-07-22 | 2014-07-22 | Pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105465439A true CN105465439A (en) | 2016-04-06 |
Family
ID=55603451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410372694.1A Pending CN105465439A (en) | 2014-07-22 | 2014-07-22 | Pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105465439A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2784698Y (en) * | 2005-03-16 | 2006-05-31 | 伊藤未来设备贸易(上海)有限公司 | Pressure regulating valve with dual closing mechanism |
| CN201318504Y (en) * | 2008-12-02 | 2009-09-30 | 赵萍 | Linear temperature control valve |
| CN201884728U (en) * | 2010-10-11 | 2011-06-29 | 费希尔久安输配设备(成都)有限公司 | Gas pressure regulator |
| WO2012126183A1 (en) * | 2011-03-24 | 2012-09-27 | Fisher Regulators (Shanghai) Co., Ltd. | Fluid regulating device with biased control element |
| CN103244725A (en) * | 2013-05-25 | 2013-08-14 | 铜陵市三圆特种铸造有限责任公司 | Pressure reduction cavity structure for high-flow balanced pressure regulating valve |
| CN203571204U (en) * | 2013-12-02 | 2014-04-30 | 成都欣国立低温科技有限公司 | Pressure reducing valve |
| CN204114266U (en) * | 2014-07-22 | 2015-01-21 | 费希尔久安输配设备(成都)有限公司 | Pressure regulator valve |
-
2014
- 2014-07-22 CN CN201410372694.1A patent/CN105465439A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2784698Y (en) * | 2005-03-16 | 2006-05-31 | 伊藤未来设备贸易(上海)有限公司 | Pressure regulating valve with dual closing mechanism |
| CN201318504Y (en) * | 2008-12-02 | 2009-09-30 | 赵萍 | Linear temperature control valve |
| CN201884728U (en) * | 2010-10-11 | 2011-06-29 | 费希尔久安输配设备(成都)有限公司 | Gas pressure regulator |
| WO2012126183A1 (en) * | 2011-03-24 | 2012-09-27 | Fisher Regulators (Shanghai) Co., Ltd. | Fluid regulating device with biased control element |
| CN103244725A (en) * | 2013-05-25 | 2013-08-14 | 铜陵市三圆特种铸造有限责任公司 | Pressure reduction cavity structure for high-flow balanced pressure regulating valve |
| CN203571204U (en) * | 2013-12-02 | 2014-04-30 | 成都欣国立低温科技有限公司 | Pressure reducing valve |
| CN204114266U (en) * | 2014-07-22 | 2015-01-21 | 费希尔久安输配设备(成都)有限公司 | Pressure regulator valve |
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Application publication date: 20160406 |
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