CN103363170B - Pressure regulator valve - Google Patents
Pressure regulator valve Download PDFInfo
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- CN103363170B CN103363170B CN201210099896.4A CN201210099896A CN103363170B CN 103363170 B CN103363170 B CN 103363170B CN 201210099896 A CN201210099896 A CN 201210099896A CN 103363170 B CN103363170 B CN 103363170B
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- guide portion
- pressure regulator
- spool
- regulator valve
- highly pressurised
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Abstract
The invention provides a kind of pressure regulator valve, second of its spool slides between portion and the second guide portion of valve core housing and forms annular chamber, when highly pressurised liquid is full of this annular chamber, the pressure of highly pressurised liquid self is utilized to provide respectively spool fluid pressure up and down.The internal diameter of the second channel of the second guide portion is less than the internal diameter of the first passage between the second guide portion and the first guide portion, make annular chamber inner high voltage liquid effects be greater than highly pressurised liquid in the active force that seal spool puts to act on second of spool and slide active force in portion, therefore highly pressurised liquid forms one in the second pressure difference slided between portion and sealed department and acts on making a concerted effort of sealed department, this makes a concerted effort to be less than the fluid pressure of highly pressurised liquid self, now spring only needs to overcome the opening and closing that can realize with joint efforts pressure regulator valve that highly pressurised liquid produces on sealed department, thus reduce the pretightening force of the spring of pressure regulator valve.
Description
Technical field
The present invention relates to pump valve technical field, more particularly, relate to a kind of pressure regulator valve.
Background technique
Pressure regulator valve, also known as self-balancing valve, flow control valve, flow dontroller, dynamic balance valve, flow balance valve, is a kind of intuitively easy Flow-rate adjustment control gear.In pipe network, applying pressure modulating valve directly can set flow according to design, valve can under water effect, the residual pressure head of automatic elimination pipeline and the flow deviation caused by pressure surge, no matter how system pressure changes all keeps setting flow constant, these functions of this valve make pipe network Flow-rate adjustment once complete, the work of tune net is become simple assignment of traffic, the effective hydraulic misadjustment solving pipe network.
As shown in Figure 1, Fig. 1 is the structural representation of pressure regulator valve in prior art.Pressure regulator valve comprises valve body 113, guide sleeve 111, spool 112, the parts such as valve seat 14 and controlling device 115, spool 112 comprises directional post 121 and plug 122 two-part, wherein directional post 121 is slidably arranged in guide sleeve 111, plug 122 is positioned opposite with valve seat 114, for the input duct 141 of shutoff valve seat 114, when highly pressurised liquid enters into pressure regulator valve through intake pipe 114, the pressure that the regulator 115 that the pressure of highly pressurised liquid is greater than pressure regulator valve provides, by spool 112 jack-up, highly pressurised liquid flow in the chamber at outlet conduit 142 place, and flowed out by outlet conduit 142, when the flow of highly pressurised liquid reduces, regulator 115 promotes spool 112 by the spring force that its inner spring 151 arranged provides and moves down, after being displaced downwardly to and contacting with valve seat 114, intake pipe 141 is propped up by spool 112, highly pressurised liquid no longer flows out.
In existing pressure regulator valve structure, its adjustment process to the active force of spool by the spring reaction highly pressurised liquid that arranges in controlling device, and is promoted spool and carries out shutoff to water inlet path.For the pressure regulator valve of general bore, when namely the radius of intake tunnel is relatively little, spring has needed very large pretightening force to act on the impact of highly pressurised liquid to spool, under spring is in stronger working state, makes the life-span of spring shorter.Especially, for the pressure regulator valve of larger caliber, namely the pressure regulator valve that intake tunnel is relatively large, be also called the safety valve of ultrahigh pressure, it more needs the spring of larger pretightening force, therefore higher to the desired strength of pressure regulator valve medi-spring, and spring is subject to larger active force simultaneously, cause shorten the working life of spring, and then have impact on the service property (quality) of pressure regulator valve.
Therefore, how reducing pressure regulator valve mesohigh liquid to the active force of spool, thus reduce the pretightening force of the spring of pressure regulator valve, is current those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of pressure regulator valve, to realize reducing pressure regulator valve mesohigh liquid to the active force of spool, thus reduce the pretightening force of the spring of pressure regulator valve.
In order to achieve the above object, the invention provides following technological scheme:
A kind of pressure regulator valve, comprises valve body and the outlet pipe being arranged at described valve body side, is provided with into water path in described valve body, is also provided with spool and the valve core housing being set in described spool outside in described valve body;
Described spool comprises that first slides portion, sealed department and second slides portion, and described sealed department is arranged at described first and slides portion and described second and slide between portion;
Described valve core housing comprises the first guide portion led to described first slip of sliding portion, and to the second guide portion that described second slip of sliding portion is led;
Described sealed department is arranged in the end of described second guide portion, and slides in described first guide portion with the described first portion of sliding;
Described first guide portion is provided with the weep hole communicated with described outlet pipe;
Described second guide portion is provided with the water inlet be connected with described water inlet path near one end of described first guide portion;
Described second external diameter sliding portion and described water inlet corresponding position is less than the external diameter that described second slides other position, portion;
The internal diameter of the second channel of described second guide portion is less than the internal diameter of the first passage between described second guide portion and described first guide portion;
Bottom and described second bottom of sliding portion of described second guide portion surround the first holding cavity, are provided with the pressure release passage being communicated with described first holding cavity and described first guide portion in described spool.
Preferably, in above-mentioned pressure regulator valve, described second slides between portion and described second guide portion and is provided with seal ring.
Preferably, in above-mentioned pressure regulator valve, described seal ring is two.
Preferably, in above-mentioned pressure regulator valve, described sealed department is the sealed department with inverted cone ramp structure.
Preferably, in above-mentioned pressure regulator valve, the end of the second described guide portion is provided with the supporting plane identical with the angle of inclination of described inverted cone ramp structure.
Pressure regulator valve provided by the invention, highly pressurised liquid flows into through water inlet path, the water inlet arranged on valve core housing enters among valve core housing, and the pressure provided by highly pressurised liquid by spool from jack-up valve core housing, highly pressurised liquid enters among valve core housing, and the weep hole on valve core housing flow into outlet pipe.
The sealed department of spool is fastened on the end of the second guide portion of valve core housing, thus realizes the isolation between water inlet path and outlet pipe.Between second slide part of spool and the second guide portion of valve core housing, because the second internal diameter sliding the position of corresponding second guide portion water inlet, portion is less than other positions, therefore form the annular chamber of accommodating highly pressurised liquid therebetween, when highly pressurised liquid flow among valve core housing, be full of this annular chamber; When highly pressurised liquid is full of this annular chamber, the pressure of highly pressurised liquid self is utilized to provide respectively spool fluid pressure up and down.
The internal diameter of the second channel of the second guide portion is less than the internal diameter of the first passage between the second guide portion and the first guide portion, therefore annular chamber inner high voltage liquid effects is greater than highly pressurised liquid in the active force that seal spool puts and acts on second of spool and slide active force in portion, therefore highly pressurised liquid forms one in the second pressure difference slided between portion and sealed department and acts on making a concerted effort of sealed department, this makes a concerted effort to be less than the fluid pressure of highly pressurised liquid self, now spring only needs to overcome the opening and closing that can realize with joint efforts pressure regulator valve that highly pressurised liquid produces on sealed department, thus reduce the pretightening force of the spring of pressure regulator valve.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of pressure regulator valve in prior art;
The structural representation of the pressure regulator valve that Fig. 2 provides for the present embodiment.
Embodiment
The invention discloses a kind of pressure regulator valve, reduce pressure regulator valve mesohigh liquid to the active force of spool, thus reduce the pretightening force of the spring of pressure regulator valve.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, carry out clear, complete description to the technological scheme in the embodiment of the present invention, obviously, described fact Example is only the present invention's part fact Example, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 2, the structural representation of pressure regulator valve that provides for the present embodiment of Fig. 2.
Present embodiments provide a kind of pressure regulator valve, comprise valve body 1 and the outlet pipe 2 being arranged at valve body 1 side, be provided with in valve body 1 into water path 11, highly pressurised liquid enters into valve body through water inlet path 11, spool 4 and the valve core housing 3 being set in spool 4 outside is also provided with in valve body 1, after highly pressurised liquid enters valve body, flow into valve core housing 3 and back down spool 4, finally flowing into outlet pipe 2.
Spool 4 comprises that first slides portion 41, sealed department 42 and second slides portion 43, and sealed department 42 is arranged at first and slides portion 41 and second and to slide between portion 43; Valve core housing 3 comprises the first guide portion 31 led to the first slip of sliding portion 41, and to the second guide portion 32 that the second slip of sliding portion 43 is led; Sealed department 42 is arranged in the end of described second guide portion 32, its first slide produce relative sliding between portion 41 and the first guide portion 31 time, along with the slip of the first slide part 41 in the first guide portion 31, the second guide portion 32 is opened and is sealed.
First guide portion 31 is provided with the weep hole 33 communicated with outlet pipe 2, highly pressurised liquid spool 4 open flow in pressure regulator valve time, be introduced in the valve core housing 3 being sleeved on spool 4 outside, enter into outlet pipe 2 at the weep hole 33 on valve core housing 3.Second guide portion 32 is provided with the water inlet 12 be connected with path 11 of intaking near one end of the first guide portion 31, highly pressurised liquid first enters into the second guide portion 32 of valve core housing 3 through water inlet 12, when spool 4 moves, sealed department 42 separates with valve core housing 3, and the second guide portion 32 and the first guide portion 31 are connected highly pressurised liquid and flowed into the first guide portion 31 through the second guide portion 32 again.
Second slides portion 43 is less than with the external diameter of water inlet 12 corresponding position the external diameter that second slides other position, portion 43, namely the second external diameter sliding the position corresponding with water inlet 12, portion 43 is less than second and slides portion 43 and the second guide portion 32 and to fit the external diameter of position, then second slide portion 43 and the second guide portion 32 when fitting, therebetween an annular chamber can be formed around sealed department, when highly pressurised liquid flow in the second guide portion 32, be filled in this annular chamber.Second part sliding portion 43 top external diameter less is directly connected with sealed department 42, to ensure to ensure being communicated with of water inlet path 11 and outlet pipe 2 when sealed department 42 moves.
The internal diameter of the second channel 7 of the second guide portion 32 is less than the internal diameter of the first passage 6 between the second guide portion 32 and the first guide portion 31, second channel 7 is the passage between the second guide portion 32 and the second slide part 43 connecting position, second slide part 43 only has the part bottom it when sliding and the second guide portion 32 is fitted completely, and this sliding parts is the second channel 7 that the second guide portion 32 inside is arranged.First passage 6 is the position that the first guide portion 31 is connected with the second guide portion 32, no longer fit with the end of the second guide portion 32 when sealed department 42 moves, now, highly pressurised liquid enters into the space of the first guide portion 31 through first passage 6, first guide portion 31 is described herein, position and first slide part 41 at the first guide portion 31 top fit, it is the sliding channel of the first slide part 41, the lower end position of the first guide portion 31, namely the position between and the first slide part 41 and sealed department 42 forms the holding cavity 14 of highly pressurised liquid, highly pressurised liquid is flowed out by weep hole 33 and outlet pipe 2 after this holding cavity 14 again,
Bottom and second bottom of sliding portion 43 of the second guide portion 32 surround the first holding cavity 8, the pressure release passage 5 of connection first holding cavity 8 and the first guide portion 31 is provided with in spool 4, this the first holding cavity 8 one aspect provides sliding space when the second guide portion 32 slides, on the other hand, first holding cavity 8 realizes the conducting of outlet pipe 2 together with pressure release passage, be in the environment of low pressure, avoid comparatively airtight environment to produce extra resistance to spool 4 moving or moving down.
The working procedure of the pressure regulator valve that the present embodiment provides is as follows:
Highly pressurised liquid flows into through water inlet path 11, the water inlet 12 arranged on valve core housing 3 enters among valve core housing 3, and the pressure provided by highly pressurised liquid by spool 4 from jack-up valve core housing 3, highly pressurised liquid enters among valve core housing 3, and the weep hole 14 on valve core housing 3 flow into outlet pipe 2.
The sealed department 42 of spool 4 is fastened on the end of the second guide portion 32 of valve core housing 3, thus realizes the isolation between water inlet path 11 and outlet pipe 2.Between second slide part 42 of spool 4 and the second guide portion 32 of valve core housing 3, because the internal diameter of the position of the water inlet 12 of corresponding second guide portion 32 of the second slide part 42 is less than other positions, therefore the annular chamber of accommodating highly pressurised liquid is formed therebetween, when highly pressurised liquid flow among valve core housing 3, be full of this annular chamber; When highly pressurised liquid is full of this annular chamber, the pressure of highly pressurised liquid self is utilized to provide respectively spool fluid pressure up and down.
The internal diameter of the second channel 7 of the second guide portion 32 is less than the internal diameter of the first passage 6 between the second guide portion 32 and the first guide portion 31, make the active force of annular chamber inner high voltage liquid effects on spool 4 sealed department 42 be greater than highly pressurised liquid to act on second of spool 4 and slide active force in portion 43, namely the first annular chamber 9 is formed between sealed department 42 and the second guide sleeve 32, second guide sleeve 32 and second slides between portion 43 and forms the second annular chamber 10, the active force acted on the first annular chamber 9 is greater than the active force on active force second annular chamber 10, therefore highly pressurised liquid forms one in the second pressure difference slided between portion 43 and sealed department 42 and acts on making a concerted effort on sealed department 42, this makes a concerted effort to be less than the fluid pressure of highly pressurised liquid self, now spring only needs to overcome the opening and closing that can realize with joint efforts pressure regulator valve that highly pressurised liquid produces on sealed department.
Can be drawn by above working procedure, pressure regulator valve provided by the invention, the pressure difference produced between spool and valve core housing by utilizing highly pressurised liquid reduces highly pressurised liquid directly to the active force of spool, thus reduces the pretightening force of the spring of pressure regulator valve.
In order to optimize technique scheme further, in the pressure regulator valve that the present embodiment provides, second slides between portion 43 and the second guide portion 32 and is provided with seal ring 13.Highly pressurised liquid enter into second slide between portion 43 and the second guide portion 32 annular chamber time, high pressure liquid cognition is squeezed into the position that second slides portion 43 and the second guide portion 32 sliding contact under the pressure effect of self, when highly pressurised liquid is squeezed in the first holding cavity 8, the effect of pressure release can be produced to the highly pressurised liquid in annular chamber, thus be unfavorable for that the pressure difference acting on upper and lower two positions of annular chamber realizes the object of the jack-up of spool 4, in order to ensure fluid pressure enough in annular chamber, increase seal ring 13, thus ensure that the trouble free service of pressure regulator valve, ensure that the quality of product.
Concrete, seal ring 13 is set to two.In the tool containing groove at regular intervals that two seal rings are offered respectively on the sliding contact position that second slides between portion 43 and the second guide portion 32, thus further ensure the tightness sealed therebetween.
In order to optimize technique scheme further, in the pressure regulator valve that the present embodiment provides, sealed department 42 is for having the sealed department of inverted cone ramp structure.Sealed department 42 be on spool 2 for cutting off the switch part of the first guide portion 31 and the second guide portion 32, be on pressure regulator valve for realizing the critical component of the switching function of pressure regulator valve.Sealed department can be set to the plane boss that diameter is greater than second channel 7, is covered by second channel 7 by boss, thus realizes the partition between water inlet path and outlet pipe.
Because pressure regulator valve is generally used for the environment of highly pressurised liquid, easily there is poorly sealed problem in plane boss structure, thus affect the normal use of pressure regulator valve.By sealed department 42 is set to inverted cone ramp structure, the sealed department with this structure can realize the sealing completely to second channel 7, and tapered slope is when the extruding being subject to highly pressurised liquid, highly pressurised liquid can be avoided directly to impact on the sealing surfaces of sealed department 42, thus reduce the wearing and tearing of sealed department to a certain extent, improve the quality of product.
Preferably, the end of the second guide portion 32 is provided with the supporting plane identical with the angle of inclination of the inverted cone ramp structure of sealed department 42.The support end of sealed department 42 and the second guide portion 32 is set to complementary structure, the sealing configuration of sealed department 42 is continued be designed to face contact, thus add sealing area, further ensure sealability, ensure the sealing completely between the spool 4 of pressure regulator valve and valve core housing 3.
In order to optimize technique scheme further, in the pressure regulator valve that the present embodiment provides, between valve core housing 3 and valve body 1, be provided with the second seal ring 15.When highly pressurised liquid enters into intake tunnel 11, valve core housing 3 is subject to the pressure of highly pressurised liquid, in order to avoid highly pressurised liquid flow into the inside of pressure regulator valve when dash valve core retainer plate 3, second seal ring 15 is set between valve core housing 3 and valve body 1, thus avoid highly pressurised liquid leakage inflow pressure regulator valve inside or directly flowed out by outlet pipe, ensure that the quality of pressure regulator valve.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a pressure regulator valve, comprise valve body (1) and be arranged at the outlet pipe (2) of described valve body (1) side, be provided with in described valve body (1) into water path (11), it is characterized in that, be also provided with spool (4) in described valve body (1) and be set in the outside valve core housing (3) of described spool (4);
Described spool (4) comprises that first slides portion (41), sealed department (42) and second slides portion (43), and described sealed department (42) is arranged at described first and slides portion (41) and described second and slide (43) between portion;
Described valve core housing (3) comprises the first guide portion (31) led to the described first slip of sliding portion (41), and to the second guide portion (32) that the described second slip of sliding portion (43) is led;
Described sealed department (42) is arranged in the end of described second guide portion (32), and slides portion (41) slip in described first guide portion (31) with described first;
Described first guide portion (31) is provided with the weep hole (33) communicated with described outlet pipe (2);
Described second guide portion (32) is provided with near one end of described first guide portion (31) the water inlet (12) be connected with described water inlet path (11);
Described second slides portion (43) is less than with the external diameter of described water inlet (12) corresponding position the external diameter that described second slides portion (43) other position;
The internal diameter of the second channel (7) of described second guide portion (32) is less than the internal diameter of the first passage (6) between described second guide portion (32) and described first guide portion (31);
Bottom and described second bottom of sliding portion (43) of described second guide portion (32) surround the first holding cavity (8), are provided with the pressure release passage (5) being communicated with described first holding cavity (8) and described first guide portion (31) in described spool (4).
2. pressure regulator valve according to claim 1, is characterized in that, described second slides between portion (43) and described second guide portion (32) and be provided with seal ring (13).
3. pressure regulator valve according to claim 2, is characterized in that, described seal ring (13) is two.
4. pressure regulator valve according to claim 1, is characterized in that, described sealed department (42) is for having the sealed department of inverted cone ramp structure.
5. pressure regulator valve according to claim 4, is characterized in that, the end of described the second guide portion (32) is provided with the supporting plane identical with the angle of inclination of described inverted cone ramp structure.
6. pressure regulator valve according to claim 1, is characterized in that, is provided with the second seal ring (15) between described valve core housing (3) and described valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210099896.4A CN103363170B (en) | 2012-04-06 | 2012-04-06 | Pressure regulator valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210099896.4A CN103363170B (en) | 2012-04-06 | 2012-04-06 | Pressure regulator valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103363170A CN103363170A (en) | 2013-10-23 |
| CN103363170B true CN103363170B (en) | 2015-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210099896.4A Active CN103363170B (en) | 2012-04-06 | 2012-04-06 | Pressure regulator valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103363170B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0520135A1 (en) * | 1991-06-26 | 1992-12-30 | Längerer & Reich GmbH & Co. | Overpressure valve device for the cooling circuit of a water-cooled internal combustion engine |
| CN2903377Y (en) * | 2006-04-16 | 2007-05-23 | 刘其峥 | High flow rate hydraulic safety valve |
| CN101275685A (en) * | 2008-03-25 | 2008-10-01 | 北京天地玛珂电液控制系统有限公司 | Emulsifiable solution medium large flow safety valve |
| CN201141459Y (en) * | 2007-10-29 | 2008-10-29 | 张立刚 | Double-mouth direct-action type pressure reducing valve |
| CN201187608Y (en) * | 2008-05-09 | 2009-01-28 | 上海立新液压有限公司 | Safety valve |
| CN201368242Y (en) * | 2009-03-26 | 2009-12-23 | 福建天广消防科技股份有限公司 | Novel pressure reducing and regulating valve |
| CN202545926U (en) * | 2012-04-06 | 2012-11-21 | 重庆博张机电设备有限公司 | Pressure-regulating valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007016780A1 (en) * | 2005-08-09 | 2007-02-15 | Stackpole Limited | Pressure relief valve |
-
2012
- 2012-04-06 CN CN201210099896.4A patent/CN103363170B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0520135A1 (en) * | 1991-06-26 | 1992-12-30 | Längerer & Reich GmbH & Co. | Overpressure valve device for the cooling circuit of a water-cooled internal combustion engine |
| CN2903377Y (en) * | 2006-04-16 | 2007-05-23 | 刘其峥 | High flow rate hydraulic safety valve |
| CN201141459Y (en) * | 2007-10-29 | 2008-10-29 | 张立刚 | Double-mouth direct-action type pressure reducing valve |
| CN101275685A (en) * | 2008-03-25 | 2008-10-01 | 北京天地玛珂电液控制系统有限公司 | Emulsifiable solution medium large flow safety valve |
| CN201187608Y (en) * | 2008-05-09 | 2009-01-28 | 上海立新液压有限公司 | Safety valve |
| CN201368242Y (en) * | 2009-03-26 | 2009-12-23 | 福建天广消防科技股份有限公司 | Novel pressure reducing and regulating valve |
| CN202545926U (en) * | 2012-04-06 | 2012-11-21 | 重庆博张机电设备有限公司 | Pressure-regulating valve |
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| Publication number | Publication date |
|---|---|
| CN103363170A (en) | 2013-10-23 |
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