CN103363170A - Pressure regulating valve - Google Patents
Pressure regulating valve Download PDFInfo
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- CN103363170A CN103363170A CN2012100998964A CN201210099896A CN103363170A CN 103363170 A CN103363170 A CN 103363170A CN 2012100998964 A CN2012100998964 A CN 2012100998964A CN 201210099896 A CN201210099896 A CN 201210099896A CN 103363170 A CN103363170 A CN 103363170A
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- guide portion
- pressure
- section
- pressure regulator
- spool
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Abstract
The invention provides a pressure regulating valve. An annular cavity is formed between a second sliding part of a valve core and a second guiding part of a valve core sleeve, and when the annular cavity is filled with high-pressure liquid, self pressure of the high-pressure liquid is used for respectively providing upward liquid pressure and downward liquid pressure for the valve core. The inner diameter of a second channel of the second guiding part is smaller than that of a first channel between the second guiding part and a first guiding part, therefore, action force exerted on the valve core sealing sleeve by the high-pressure liquid in the annular cavity is larger than that exerted on the second sliding part of the valve core by the high-pressure liquid, so that pressure difference, between the second sliding part and a sealing part, of the high-pressure liquid form resultant force exerted on the sealing part, the resultant force is smaller than the self liquid pressure of the high-pressure liquid, at the moment a spring only needs to overcome the resultant force which is generated by the high-pressure liquid and exerted on the sealing part, opening and closing of the pressure regulating valve can be achieved, and therefore pretightening force of the spring of the pressure regulating valve is reduced.
Description
Technical field
The present invention relates to the pump valve technical field, more particularly, relate to a kind of pressure regulator valve.
Background technique
Pressure regulator valve also claims self-balancing valve, flow control valve, flow dontroller, dynamic balance valve, flow balance valve, is a kind of easy Flow-rate adjustment control gear directly perceived.The applying pressure modulating valve can be directly according to setting flow in the pipe network, valve can be under the water effect, automatically eliminate residual pressure head and the caused flow deviation of pressure surge of pipeline, no matter how system pressure changes all keeps the setting flow constant, these functions of this valve are once finished the pipe network Flow-rate adjustment, transferring net work to become simple assignment of traffic, effectively solve the hydraulic misadjustment of pipe network.
As shown in Figure 1, Fig. 1 is the structural representation of pressure regulator valve in the 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 slidingly arranged in the guide sleeve 111, plug 122 and valve seat 114 positioned opposite, the input duct 141 that is used for shutoff valve seat 114, when highly pressurised liquid when intake pipe 114 enters into pressure regulator valve, the pressure that the pressure of highly pressurised liquid provides greater than the regulator 115 of pressure regulator valve, with spool 112 jack-up, highly pressurised liquid flow in the chamber at outlet conduit 142 places, and by outlet conduit 142 outflows, when the flow of highly pressurised liquid reduces, the spring force that regulator 115 provides by its inner spring 151 that arranges promotes spool 112 and moves down, when being displaced downwardly to after valve seat 114 contacts, intake pipe 141 is propped up by spool 112, and highly pressurised liquid no longer flows out.
In existing pressure regulator valve structure, its adjustment process is by the active force of the interior spring reaction highly pressurised liquid that arranges of controlling device to spool, and the promotion spool carries out shutoff to the water inlet path.For the pressure regulator valve of general bore, namely during the radius less of intake tunnel, spring has needed very large pretightening force to act on highly pressurised liquid to the impact of spool, and spring is under the stronger working state, so that the life-span of spring is shorter.Especially, pressure regulator valve for larger caliber, it is the relatively large pressure regulator valve of intake tunnel, the safety valve that is called again ultrahigh pressure, it more needs the spring of larger pretightening force, and is 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 affected the service property (quality) of pressure regulator valve.
Therefore, how reducing pressure regulator valve mesohigh liquid to the active force of spool, thereby reduce the pretightening force of the spring of pressure regulator valve, is present 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, reduce pressure regulator valve mesohigh liquid to the active force of spool with realization, thereby 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 that is arranged at described valve body one side, is provided with in the described valve body into the water path, also is provided with spool and the valve core housing that is set in described spool outside in the described valve body;
Described spool comprise first slide section, sealed department and second slides section, described sealed department is arranged at described first and slides section and described second and slide between the section;
Described valve core housing comprises the first guide portion that described the first slip of sliding section is led, and the second guide portion that described the second slip of sliding section is led;
Described sealed department is arranged in the end of described the second guide portion, and slides in described the first guide portion with described first section of sliding;
Be provided with the weep hole that communicates with described outlet pipe on described the first guide portion;
Described the second guide portion is provided with the water inlet that is connected with described water inlet path near an end of described the first guide portion;
The described second external diameter that slides section and described water inlet corresponding position slides the external diameter of other position of section less than described second;
The internal diameter of the second channel of described the second guide portion is less than the internal diameter of the first passage between described the second guide portion and described the first guide portion;
The bottom of described the second guide portion and described the second bottom of sliding section surround the first holding cavity, are provided with the pressure release passage that is communicated with described the first holding cavity and described the first guide portion in the described spool.
Preferably, in above-mentioned pressure regulator valve, described second slides between section and described the 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 described the second 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 the water inlet path, water inlet through arranging on the valve core housing enters among the valve core housing, and the pressure that provides by highly pressurised liquid is with spool jack-up from the valve core housing, highly pressurised liquid enters among the 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, thereby realizes intaking isolation between path and the outlet pipe.Between the second slide part of spool and the second guide portion of valve core housing, because second slides the internal diameter of position of corresponding the second guide portion water inlet of section less than other positions, therefore form the annular chamber of accommodating highly pressurised liquid between the two, when highly pressurised liquid flow among the valve core housing, be full of this annular chamber; When highly pressurised liquid is full of this annular chamber, utilize the pressure of highly pressurised liquid self 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 the active force that puts in seal spool of annular chamber inner high voltage liquid effects acts on the second active force that slides in the section of spool greater than highly pressurised liquid, therefore highly pressurised liquid acts on making a concerted effort of sealed department in the second one of pressure difference formation of sliding between section and the sealed department, should make a concerted effort less than the fluid pressure of highly pressurised liquid self, spring only need to overcome highly pressurised liquid and can realize with joint efforts opening and closing to pressure regulator valve what sealed department produced this moment, thereby had reduced the pretightening force of the spring of pressure regulator valve.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of pressure regulator valve in the prior art;
The structural representation of the pressure regulator valve that Fig. 2 provides for present embodiment.
Embodiment
The invention discloses a kind of pressure regulator valve, reduced the active force of pressure regulator valve mesohigh liquid to spool, thereby reduced the pretightening force of the spring of pressure regulator valve.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technological scheme in the embodiment of the invention is carried out clear, complete description, obviously, described fact Example only is the present invention's part fact Example, rather than whole embodiments.Based on embodiments of the invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment who obtains under the creative work prerequisite.
As shown in Figure 2, the structural representation of the pressure regulator valve that provides for present embodiment of Fig. 2.
Present embodiment provides a kind of pressure regulator valve, comprise valve body 1 and the outlet pipe 2 that is arranged at valve body 1 one sides, be provided with in the valve body 1 into water path 11, highly pressurised liquid enters into valve body through water inlet path 11, also be provided with spool 4 and the valve core housing 3 that is set in spool 4 outsides in the valve body 1, after highly pressurised liquid enters valve body, flow into valve core housing 3 and back down spool 4, flow at last outlet pipe 2.
Be provided with the weep hole 33 that communicates with outlet pipe 2 on the first guide portion 31, highly pressurised liquid is opened when flowing in the pressure regulator valve at spool 4, is introduced in the valve core housing 3 that is sleeved on spool 4 outsides, enters into outlet pipe 2 at the weep hole 33 on valve core housing 3.The second guide portion 32 is provided with the water inlet 12 that is connected with the path 11 of intaking near an end of the first guide portion 31, highly pressurised liquid is 12 the second guide portions 32 that enter into valve core housing 3 through the water inlet first, sealed department 42 separates with valve core housing 3 when moving on the spool 4, 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.
The second external diameter that slides section 43 and water inlet 12 corresponding positions slides the external diameter of section 43 other positions less than second, namely the second external diameter that slides position corresponding to section 43 and water inlet 12 slides the fit external diameter of position of section 43 and the second guide portion 32 less than second, then second when sliding section 43 and the second guide portion 32 and fitting, can form an annular chamber around sealed department between the two, when highly pressurised liquid flow in the second guide portion 32, be filled in this annular chamber.Second slides the less part of section's 43 top external diameters directly links to each other with sealed department 42, to guarantee to guarantee the connection of water inlet path 11 and outlet pipe 2 when moving on the sealed department 42.
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 positions, the second slide part 43 only has the part of its bottom to fit fully with the second guide portion 32 when sliding, and this sliding parts is the second channels 7 of the second guide portion 32 inside settings.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 moving on the sealed department 42, at this moment, highly pressurised liquid enters into the space of the first guide portion 31 through first passage 6, the first guide portion 31 is described herein, position and first slide part 41 at the first guide portion 31 tops fit, it is the sliding channel of the first slide part 41, the lower end position of the first guide portion 31, namely and the position between the first slide part 41 and the sealed department 42 form the holding cavity 14 of highly pressurised liquid, highly pressurised liquid is flowed out by weep hole 33 and outlet pipe 2 behind this holding cavity 14 again;
The bottom of the second guide portion 32 and the second bottom of sliding section 43 surround the first holding cavity 8, be provided with the pressure release passage 5 that is communicated with the first holding cavity 8 and the first guide portion 31 in the spool 4, this first holding cavity 8 provides sliding space on the one hand when the second guide portion 32 slides, on the other hand, the first holding cavity 8 is realized the conducting of outlet pipe 2 with pressure release passage, be in the environment of low pressure, avoid comparatively airtight environment to produce extra resistance to moving or move down on the spool 4.
The working procedure of the pressure regulator valve that present embodiment provides is as follows:
Highly pressurised liquid flows into through water inlet path 11, water inlet 12 through arranging on the valve core housing 3 enters among the valve core housing 3, and the pressure that provides by highly pressurised liquid is spool 4 jack-up from the valve core housing 3, and highly pressurised liquid enters among the valve core housing 3, and the weep hole on valve core housing 3 14 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, thereby realizes intaking isolation between path 11 and the outlet pipe 2.Between the 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 the second slide part 42 corresponding the second guide portions 32 is less than other positions, therefore form the annular chamber of accommodating highly pressurised liquid between the two, when highly pressurised liquid flow among the valve core housing 3, be full of this annular chamber; When highly pressurised liquid is full of this annular chamber, utilize the pressure of highly pressurised liquid self 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, so that the active force of annular chamber inner high voltage liquid effects on spool 4 sealed departments 42 acts on the second active force that slides in the section 43 of spool 4 greater than highly pressurised liquid, be to form the first annular chamber 9 between sealed department 42 and the second guide sleeve 32, the second guide sleeve 32 and second slides and forms the second annular chamber 10 between the section 43, act on active force on the first annular chamber 9 greater than the active force on active force the second annular chamber 10, therefore highly pressurised liquid acts on making a concerted effort on the sealed department 42 in the second one of pressure difference formation of sliding between section 43 and the sealed department 42, should make a concerted effort less than the fluid pressure of highly pressurised liquid self, spring only need to overcome highly pressurised liquid and can realize with joint efforts opening and closing to pressure regulator valve what sealed department produced this moment.
Can draw by above working procedure, pressure regulator valve provided by the invention, reduce highly pressurised liquid directly to the active force of spool by the pressure difference of utilizing highly pressurised liquid between spool and valve core housing, to produce, thereby reduced the pretightening force of the spring of pressure regulator valve.
In order further to optimize technique scheme, in the pressure regulator valve that present embodiment provides, second slides between section 43 and the second guide portion 32 and is provided with seal ring 13.Highly pressurised liquid enter into second slide between section 43 and the second guide portion 32 annular chamber the time, high pressure liquid is known from experience to be squeezed into the second position of sliding section 43 and 32 sliding contacts of the second guide portion under the pressure-acting of self, when highly pressurised liquid is squeezed in the first holding cavity 8, can produce to the highly pressurised liquid in the annular chamber effect of pressure release, thereby be unfavorable for acting on annular chamber up and down the pressure difference at two positions realize purpose with the jack-up of spool 4, in order to guarantee fluid pressure enough in the annular chamber, increase seal ring 13, thereby guaranteed the trouble free service of pressure regulator valve, guaranteed the quality of product.
Concrete, seal ring 13 is set to two.Two seal rings slide in the tool containing groove at regular intervals of offering at the sliding contact position between section 43 and the second guide portion 32 second respectively, thereby have further guaranteed the tightness that seals between the two.
In order further to optimize technique scheme, in the pressure regulator valve that present embodiment provides, sealed department 42 is for having the sealed department of inverted cone ramp structure.Sealed department 42 is the switch part that is used for cutting off the first guide portion 31 and the second guide portion 32 on the spool 2, is the critical component of the switching function that is used for the realization pressure regulator valve on the pressure regulator valve.Sealed department can be set to diameter greater than the plane boss of second channel 7, by boss second channel 7 is covered, thereby realizes the partition between water inlet path and the outlet pipe.
Because pressure regulator valve is generally used for the environment of highly pressurised liquid, poorly sealed problem appears in plane boss structure easily, thereby affects the normal use of pressure regulator valve.By sealed department 42 is set to the inverted cone ramp structure, sealed department with this structure can be realized the fully sealing to second channel 7, and tapered slope is when the extruding that is subject to highly pressurised liquid, can avoid highly pressurised liquid directly to impact on the sealing surfaces of sealed department 42, thereby reduced to a certain extent the wearing and tearing of sealed department, improved 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 to be designed to the face contact, thereby increased sealing area, further guaranteed sealability, guaranteed the spool 4 of pressure regulator valve and the fully sealing between the valve core housing 3.
In order further to optimize technique scheme, in the pressure regulator valve that present embodiment provides, be provided with the second seal ring 15 between valve core housing 3 and the valve body 1.When highly pressurised liquid enters into intake tunnel 11, valve core housing 3 is subject to the pressure of highly pressurised liquid, flow into the inside of pressure regulator valve when the dash valve core retainer plate 3 for fear of highly pressurised liquid, the second seal ring 15 is set between valve core housing 3 and valve body 1, flow into pressure regulator valve inside or directly by the outlet pipe outflow, guaranteed the quality of pressure regulator valve thereby avoided highly pressurised liquid to leak.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the present invention.Multiple modification to these embodiments will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will 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. pressure regulator valve, comprise valve body (1) and be arranged at the outlet pipe (2) of described valve body (1) one side, be provided with in the described valve body (1) into water path (11), it is characterized in that, also be provided with spool (4) in the described valve body (1) and be set in the outside valve core housing (3) of described spool (4);
Described spool (4) comprise first slide section (41), sealed department (42) and second slides section (43), described sealed department (42) is arranged at described first and slides section (41) and described second and slide (43) between the section;
Described valve core housing (3) comprises the first guide portion (31) that the described first slip of sliding section (41) is led, and the second guide portion (32) that the described second slip of sliding section (43) is led;
Described sealed department (42) is arranged in the end of described the second guide portion (32), and slides section (41) with described first and slide in described the first guide portion (31);
Be provided with the weep hole (33) that communicates with described outlet pipe (2) on described the first guide portion (31);
Described the second guide portion (32) is provided with the water inlet (12) that is connected with described water inlet path (11) near an end of described the first guide portion (31);
The described second external diameter that slides section (43) and described water inlet (12) corresponding position slides the external diameter of other position of section (43) less than described second;
The internal diameter of the second channel (7) of described the second guide portion (32) is less than the internal diameter of the first passage (6) between described the second guide portion (32) and described the first guide portion (31);
The bottom of described the second guide portion (32) and the described second bottom of sliding section (43) surround the first holding cavity (8), are provided with the pressure release passage (5) that is communicated with described the first holding cavity (8) and described the first guide portion (31) in the described spool (4).
2. pressure regulator valve according to claim 1 is characterized in that, described second slides between section (43) and described the 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 the 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 true CN103363170A (en) | 2013-10-23 |
| CN103363170B CN103363170B (en) | 2015-08-19 |
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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 |
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| Country | Link |
|---|---|
| CN (1) | CN103363170B (en) |
Citations (8)
| 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 |
| US20070034262A1 (en) * | 2005-08-09 | 2007-02-15 | Eric Cozens | Pressure relief valve |
| 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 |
-
2012
- 2012-04-06 CN CN201210099896.4A patent/CN103363170B/en active Active
Patent Citations (8)
| 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 |
| US20070034262A1 (en) * | 2005-08-09 | 2007-02-15 | Eric Cozens | Pressure relief valve |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103363170B (en) | 2015-08-19 |
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