阅读说明：本技术 适用于乳化液泵站系统的大流量充气式溢流阀 (Big flow inflatable overflow valve suitable for emulsion power pack system ) 是由 韩缚龙 王燕丽 董士刚 于 2019-08-27 设计创作，主要内容包括：本发明涉及一种适用于乳化液泵站系统的大流量充气式溢流阀,涉及乳化液泵站系统技术领域。本发明提供了一种适用于乳化液泵站系统的大流量充气式溢流阀,采用充气式蓄能器来代替传统溢流阀中的弹簧来实现阀芯随压力的开启和关闭,并且通过阀芯组件中的推杆设计,实现了大流量乳化液泵站系统的流量和压力的无级调节,能够将压力调整到合适的值,减少了阀门的开启次数,缓解了由于卸载冲击而带来的流体冲击力,解决了目前卸载阀带来的冲击和耗能问题。(The present invention relates to a kind of big flow inflatable overflow valves suitable for emulsion power pack system, are related to emulsion power pack systems technology field.The present invention provides a kind of big flow inflatable overflow valves suitable for emulsion power pack system, the opening and closing for replacing the spring in conventional outflow valve using inflatable accumulator to realize spool with pressure, and pass through the putter design in core assembly, realize the flow of large-flow emulsion pumping station system and the step-less adjustment of pressure, pressure can be adjusted to suitably be worth, reduce the opening times of valve, it alleviates due to unloading impact and bring fluid impingement force, solves current feather valve bring impact and energy consumption issues.)

1. a kind of big flow inflatable overflow valve suitable for emulsion power pack system, which is characterized in that including plug (1), valve Body (2), core assembly (3), control valve block (4), regulating valve (5), inflatable accumulator (6)；

Wherein, the valve body (2) is cuboid, is provided with one P mouthfuls and one T mouthfuls on a face, is provided on the opposite face in the face One fabrication hole, the fabrication hole are connected to P mouthfuls, and the central axis of the two is located on same axis, are had in valve body (2) for pacifying The cavity of cartridge spool component (3), cavity is interior to install core assembly (3), which is connected to P mouthfuls respectively, is connected to T mouthfuls, and should The central axis of cavity respectively with P mouthfuls, T mouthfuls of central axis；Controlling valve block (4) is cuboid, is provided on a face for pacifying The threaded mounting hole for filling two regulating valves (5) installs a regulating valve (5) respectively at two threaded mounting holes, passes through adjusting The opening degree of two regulating valves (5), can set up the cracking pressure of system；Regulating valve (5) in the inner part is used as P mouthfuls of regulating valves, It is communicated by the fabrication hole with the P mouth on valve body (2), by adjusting P mouthfuls of regulating valves, enables to the pressure of inflatable overflow valve Power increases, and regulating valve (5) in the outer part is used as T mouthfuls of regulating valves, communicates with the T mouth on valve body (2), by adjusting T mouthfuls of regulating valves, Enable to the pressure reduction of inflatable overflow valve；Another face of control valve block (4) is connected through a screw thread the inflatable and stores Energy device (6), and inflatable accumulator (6) is connected to two regulating valves (5) and core assembly (3) respectively, and inflatable accumulation of energy The central axis of the central axis of device (6) and two regulating valves (5) is located on same axis with the central axis of core assembly (3)； Plug (1) is connected through a screw thread the fabrication hole on valve body (2), the fabrication hole for blocking on valve body (2)；Core assembly (3) is used In the open and close of fluid in control inflatable overflow valve.

2. big flow inflatable overflow valve as described in claim 1, which is characterized in that the core assembly (3) includes that valve is close Sealing (301), the 4th O-ring (302), spool (303), push rod (304), valve pocket (305), the 5th O-ring (306), support ring (307) and the 6th O-ring (308)；Wherein, valve seal (301) is the cylinder of center aperture, the installation of the 4th O-ring (302) In valve seal (301) periphery, the sealing between valve seal (301) and valve body (2) inner wall is realized；Valve pocket (305) is one end The cylinder of circumferential uniformly distributed multiple circular holes, the end face of interior cartridge spool (303), push rod (304), the other end pass through the 6th O-ring (308) Realize the sealing between valve body (2) and control valve block (4)；(303 one end have pyramidal structure to spool, can be with valve seal (301) linear conical surface seal is formed between, the other end has the cylindrical surface being bonded with valve pocket (305) inner wall, and spool (303) also has There is ladder-like central blind hole, so that push rod (304) one end can extend into the internal blind via bottom of spool (303), the other end passes through Sealing between 5th O-ring (306), support ring (307) and valve pocket (305) inner wall, so that push rod (304) can be with valve Core (303) moves horizontally together, moves together the conical surface and valve seal of spool (303) in spool (303) and push rod (304) (301) when separating, P mouth of valve body (2) pass sequentially through the centre bore of valve seal (301), spool (303) and valve pocket (305) it Between space and the circular hole on valve pocket (305), be connected to the T mouth of valve body (2).

3. big flow inflatable overflow valve as described in claim 1, which is characterized in that the inflatable overflow valve further includes One O-ring (10), first O-ring (10) are mounted in the seal groove of control valve block (4), play control valve block (4) and valve Connection sealing function between body (2).

4. big flow inflatable overflow valve as described in claim 1, which is characterized in that the inflatable overflow valve further includes Two O-rings (11), the second O-ring (11) are mounted in the seal groove of regulating valve (5), play regulating valve (5) and control valve block (4) Between connection sealing function.

5. big flow inflatable overflow valve as described in claim 1, which is characterized in that the inflatable overflow valve further includes Three O-rings (12), third O-ring (12) are mounted in the seal groove of valve body (2), play valve body (2) P mouth and T mouthfuls with emulsification Connection sealing function in pump station system between other valve blocks.

6. a kind of working method of the big flow inflatable overflow valve as described in any one of claims 1 to 5, feature exist In in the basic valve position that spool (303) are closed, the hydraulic power of inflatable accumulator (6) acts on control valve fast (4) and will It is transferred to push rod (304), spool (303) and valve seal (301), is formed and is sealed in spool (303) conical surface；In gas Side, inflatable accumulator (6) has been pre-charged with nitrogen, and carries out hydraulic preloading, Zhi Daoda by the setting of the pressure of hydraulic fluid side To the preset pressure Pe of requirement；In the operating process of valve, P mouthfuls of pressure are set as F1, pressure is in inflatable accumulator 6 F2, system pressure Ps enter valve body (2) by P mouthfuls, hydraulic pressure opening power are generated at spool (303), if hydraulic pressure opening power is small Then the conical surface of spool 303 can be made to contact with valve seal 301 in preset pressure Pe, F1 < F2, realize sealing, spool (303) and Valve seal (301) is maintained at the basic valve position of closing, then is cut off with T mouthfuls of access for P mouthfuls；If system pressure Ps increases To so that hydraulic pressure opening power is greater than the degree of preset pressure Pe, F1 > F2, then spool 303 moves right together together with push rod 304, Spool (303) is pushed out basic valve position, P mouthfuls and and T mouthfuls between access connect, then flow through P mouthfuls of liquid and understand some T mouthfuls are flowed at the conical surface by spool 303, to realize overflow.

7. method as claimed in claim 6, which is characterized in that the aperture of the spool (303) with system pressure Ps increasing Add and proportional increase, until reaching the maximum allowable volume flow of valve.

8. method as claimed in claim 6, which is characterized in that the preset pressure Pe in the inflatable accumulator (6) passes through Two regulating valves (5) are arranged.

Technical field

The present invention relates to emulsion power pack systems technology fields, and in particular to a kind of suitable for the big of emulsion power pack system Flow inflatable overflow valve.

Background technique

Emulsion power pack system is often unloaded after system pressure is higher than setting value with feather valve come control system pressure at present It carries valve to open, the flow of pump discharge all unloads, and when being lower than setting value, plays pressure again, and in control process, fluid is rushed in system It is very big to hit pressure.

With being increasing for large-mining-height working surface, the diameter of column and jack is increasing, for pump discharge It is required that also increasing, the continuous increase of pumping plant flow, for the system using feather valve control pressure, system to be solved The problems such as internal impact, will be more and more obvious.Feather valve ceaselessly start and stop also have for the structure original for valve certain It is required that in addition, pipe-line system be also required to consider unloading shock problem, need to increase intensity.

Using overflow valve come pressure regulation, after pressure is more than setting value, overflow valve is opened, with the variation of pressure, opening degree Also with increasing or reducing, the release of pressure is more steady.But the current common structure of relief valve of other industry is to utilize bullet The flexible open and close to realize spool of spring, the design difficulty of processing of spring is bigger, and flow is reaching certain journey After degree, the machining accuracy and cost of spring can be all dramatically increased, and be no longer desirable for the design of the overflow valve of big flow.

Therefore, it is necessary to develop a kind of big flow overflow valve suitable for emulsion power pack system, current feather valve band is solved The impact and energy consumption issues come.

Summary of the invention

(1) technical problems to be solved

The technical problem to be solved by the present invention is how to realize a kind of big flow overflow suitable for emulsion power pack system Valve solves current feather valve bring impact and energy consumption issues.

(2) technical solution

In order to solve the above-mentioned technical problems, the present invention provides a kind of big flow inflations suitable for emulsion power pack system Formula overflow valve, including plug 1, valve body 2, core assembly 3, control valve block 4, regulating valve 5, inflatable accumulator 6；

Wherein, the valve body 2 is cuboid, is provided with one P mouthfuls and one T mouthfuls on a face, opens on the opposite face in the face There is a fabrication hole, which is connected to P mouthfuls, and the central axis of the two is located on same axis, has in valve body 2 for pacifying The cavity of cartridge spool component 3, cavity is interior to install core assembly 3, which is connected to P mouthfuls respectively, is connected to T mouthfuls, and the cavity Central axis respectively with P mouthfuls, T mouthfuls of central axis；Control valve block 4 is cuboid, is provided on a face for installing two The threaded mounting hole of regulating valve 5 installs a regulating valve 5 respectively at two threaded mounting holes, by adjusting two regulating valves 5 Opening degree, the cracking pressure of system can be set up；Regulating valve 5 in the inner part is used as P mouthful regulating valves, by the fabrication hole and P mouth on valve body 2 communicates, and by adjusting P mouthfuls of regulating valves, enables to the pressure rise of inflatable overflow valve, tune in the outer part It saves valve 5 and is used as T mouthfuls of regulating valves, communicated with the T mouth on valve body 2, by adjusting T mouthfuls of regulating valves, enable to inflatable overflow valve Pressure reduction；Another face of control valve block 4 is connected through a screw thread the inflatable accumulator 6, and inflatable accumulator 6 divides It is not connected to two regulating valves 5 and core assembly 3, and the central axis of the central axis of inflatable accumulator 6 and two regulating valves 5 Vertically, it is located on same axis with the central axis of core assembly 3；Plug 1 is connected through a screw thread the fabrication hole on valve body 2, is used for Block the fabrication hole on valve body 2；Core assembly 3 is used to control the open and close of fluid in inflatable overflow valve.

Preferably, the core assembly 3 includes valve seal 301, the 4th O-ring 302, spool 303, push rod 304, valve pocket 305, the 5th O-ring 306, support ring 307 and the 6th O-ring 308；Wherein, valve seal 301 is the cylinder of center aperture, 4th O-ring 302 is mounted on 301 periphery of valve seal, realizes the sealing between valve seal 301 and 2 inner wall of valve body；Valve pocket 305 are circumferentially evenly distributed with the cylinder of multiple circular holes for one end, and the end face of interior cartridge spool 303, push rod 304, the other end passes through the 6th O-ring 308 realize the sealing between valve body 2 and control valve block 4；303 one end of spool has pyramidal structure, can be with valve seal 301 Between form linear conical surface seal, the other end has cylindrical surface be bonded with 305 inner wall of valve pocket, and spool 303 is also with ladder-like Central blind hole so that 304 one end of push rod can extend into the blind via bottom inside spool 303, the other end by the 5th O-ring 306, Sealing between 305 inner wall of support ring 307 and valve pocket, so that push rod 304 can move horizontally together with spool 303, In When spool 303 is separated with the conical surface that push rod 304 moves together spool 303 with valve seal 301, the P mouth of valve body 2 is passed sequentially through Space between the centre bore of valve seal 301, spool 303 and valve pocket 305 and the circular hole on valve pocket 305, the T with valve body 2 Mouth connection.

Preferably, the inflatable overflow valve further includes the first O-ring 10, and first O-ring 10 is mounted on control valve In the seal groove of block 4, the connection sealing function between control valve block 4 and valve body 2 is played.

Preferably, the inflatable overflow valve further includes the second O-ring 11, and the second O-ring 11 is mounted on the close of regulating valve 5 In sealing groove, plays regulating valve 5 and control the connection sealing function between valve block 4.

Preferably, the inflatable overflow valve further includes third O-ring 12, and third O-ring 12 is mounted on the sealing of valve body 2 In slot, the connection sealing function in the P mouth and T mouthfuls and emulsion power pack system of valve body 2 between other valve blocks is played.

The present invention also provides the working methods of the big flow inflatable overflow valve described in one kind, close in spool 303 Basic valve position, the hydraulic power of inflatable accumulator 6 act on control valve fast 4 and are passed to push rod 304, spool 303 With valve seal 301, is formed and sealed in 303 conical surface of spool；In gas side, inflatable accumulator 6 has been pre-charged with nitrogen, And hydraulic preloading, the preset pressure Pe until reaching requirement are carried out by the setting of the pressure of hydraulic fluid side；In the operation of valve Cheng Zhong sets P mouthfuls of pressure as F1, and pressure is F2 in inflatable accumulator 6, and system pressure Ps enters valve body 2 by P mouthfuls, in valve Hydraulic pressure opening power is generated at core 303, if hydraulic pressure opening power is less than preset pressure Pe, F1 < F2 can then make the conical surface of spool 303 Contacted with valve seal 301, realize sealing, spool 303 and valve seal 301 are maintained at the basic valve position of closing, then P mouthful and T mouthfuls of access is cut off；If system pressure Ps increases to so that hydraulic pressure opening power is greater than the degree of preset pressure Pe, F1 > F2, then spool 303 moves right together together with push rod 304, and spool 303 is pushed out basic valve position, P mouthfuls and and T mouthfuls between Access is connected, then flows through P mouthfuls of liquid and understand and flow to T mouthfuls at some conical surface by spool 303, to realize overflow.

Preferably, aperture proportional increase with the increase of system pressure Ps of the spool 303, until reaching valve Maximum allowable volume flow.

Preferably, the preset pressure Pe in the inflatable accumulator 6 is arranged by two regulating valves (5).

(3) beneficial effect

The present invention provides a kind of big flow inflatable overflow valves suitable for emulsion power pack system, are stored using inflatable Can device come replace the spring in conventional outflow valve realize spool with the opening and closing of pressure, and the push rod in core assembly Design, so that liquid and fluid two sides have an opened by pressure ratio to pour in advance into inflatable accumulator in use Suitable gas opens the liquid in rear push-rod promotion inflatable accumulator, pressure in spool since the compressibility of gas is very big The gas of preliminary filling, opens spool in contracting inflatable accumulator, and when pressure is low, expansion of compressed gas pushes push rod and then contracts Small valve core is open or closes spool, to realize the flow of large-flow emulsion pumping station system and the stepless-adjustment of pressure Pressure, can be adjusted to suitably be worth, reduce the opening times of valve by section, alleviate due to unloading impact and bring stream Body impact force solves current feather valve bring impact and energy consumption issues.

Detailed description of the invention

Fig. 1 is overall structure cross-sectional view of the invention；

Fig. 2 is the working principle of the invention signal；

Fig. 3 is the core assembly structure sectional view in the present invention.

Wherein, 1, plug, 2, valve body, 3, core assembly, 4, control valve block, 5, regulating valve, 6, accumulator, 10, first is O-shaped Circle, the 11, second O-ring, 12, third O-ring；301, valve seal, the 302, the 4th O-ring, 303, spool, 304, push rod, 305, valve pocket, the 306, the 5th O-ring, 307, support ring, the 308, the 6th O-ring.

Specific embodiment

To keep the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to of the invention Specific embodiment is described in further detail.

A kind of inflatable overflow valve suitable for emulsion power pack system provided by the invention, as shown in Figure 1 and Figure 2, including Plug 1, valve body 2, core assembly 3, control valve block 4, regulating valve 5, inflatable accumulator 6；

Wherein, the valve body 2 is cuboid, is provided with one P mouthfuls and one T mouthfuls on a face, opens on the opposite face in the face There is a fabrication hole, which is connected to P mouthfuls, and the central axis of the two is located on same axis, has in valve body 2 for pacifying The cavity of cartridge spool component 3, cavity is interior to install core assembly 3, which is connected to P mouthfuls respectively, is connected to T mouthfuls, and the cavity Central axis respectively with P mouthfuls, T mouthfuls of central axis；Control valve block 4 is cuboid, is provided on a face for installing two The threaded mounting hole of regulating valve 5 installs a regulating valve 5 respectively at two threaded mounting holes, by adjusting two regulating valves 5 Opening degree, the cracking pressure of system can be set up；Regulating valve 5 (regulating valve 5 on the left side in Fig. 1) in the inner part is as P mouthfuls of tune Valve is saved, is communicated by the fabrication hole with the P mouth on valve body 2, by adjusting P mouthfuls of regulating valves, enables to inflatable overflow valve Pressure slowly increase, regulating valve 5 in the outer part (regulating valve 5 on the right in Fig. 1) is used as T mouthfuls of regulating valves, with the T on valve body 2 Mouth communicates, and by adjusting T mouthfuls of regulating valves, the pressure of inflatable overflow valve is enabled to slowly to reduce；Control another of valve block 4 Face is connected through a screw thread the inflatable accumulator 6, and inflatable accumulator 6 respectively with two regulating valves 5 and core assembly 3 Connection, and the central axis of the central axis of inflatable accumulator 6 and two regulating valves 5, are located at the central axis of core assembly 3 On same axis；Plug 1 is connected through a screw thread the fabrication hole on valve body 2, the fabrication hole for blocking on valve body 2；Core assembly 3 For controlling the open and close of fluid in inflatable overflow valve.

The inflatable overflow valve further includes the first O-ring 10, the second O-ring 11, third O-ring 12, and described first is O-shaped Circle 10 is mounted in the seal groove of control valve block 4, plays the connection sealing function between control valve block 4 and valve body 2；Second is O-shaped Circle 11 is mounted in the seal groove of regulating valve 5, is played regulating valve 5 and is controlled the connection sealing function between valve block 4；Third is O-shaped Circle 12 is mounted in the seal groove of valve body 2, is played in the P mouth and T mouthfuls and emulsion power pack system of valve body 2 between other valve blocks Connect sealing function.

As shown in figure 3, the core assembly 3 include valve seal 301, the 4th O-ring 302, spool 303, push rod 304, Valve pocket 305, the 5th O-ring 306, support ring 307 and the 6th O-ring 308；Wherein, valve seal 301 is the cylinder of center aperture Shape, the 4th O-ring 302 are mounted on 301 periphery of valve seal, realize the sealing between valve seal 301 and 2 inner wall of valve body；Valve Set 305 is the cylinder of the circumferentially uniformly distributed multiple circular holes in one end, and interior cartridge spool 303, push rod 304, it is O-shaped that the end face of the other end passes through the 6th Circle 308 realizes the sealing between valve body 2 and control valve block 4；303 one end of spool has pyramidal structure, can be with valve seal Linear conical surface seal is formed between 301, the other end has the cylindrical surface being bonded with 305 inner wall of valve pocket, and spool 303 also has ladder Shape central blind hole, so that 304 one end of push rod can extend into the blind via bottom inside spool 303, the other end passes through the 5th O-ring 306, the sealing between 305 inner wall of support ring 307 and valve pocket, so that push rod 304 can be with spool 303 together horizontal shifting It is dynamic, when spool 303 is separated with the conical surface that push rod 304 moves together spool 303 with valve seal 301, the P mouth of valve body 2 according to Space between secondary centre bore, spool 303 and valve pocket 305 by valve seal 301 and the circular hole on valve pocket 305, with valve The T mouth of body 2 is connected to.

Inflatable overflow valve of the invention is mainly used for the pressure setting of hydraulic pump in emulsion power pack system and to wherein The pressure protection of fluid pressure drive device, Hydraulic Elements.Referring to figs. 1 to Fig. 3, its working principle is that: spool 303 close it is basic Valve position, the hydraulic power of inflatable accumulator 6 act on control valve fast 4 and are passed to push rod 304, spool 303 and valve Sealing element 301 is formed in 303 conical surface of spool and is sealed.In gas side, inflatable accumulator 6 has been pre-charged with nitrogen, and leads to The pressure for crossing hydraulic fluid side, which is arranged, carries out hydraulic preloading, the preset pressure Pe until reaching requirement, the gas in inflatable accumulator 6 Body be it is compressible, play the role of elastomeric spring.In the operating process of valve, P mouthfuls of pressure are set as F1, inflatable stores Pressure is F2 in energy device 6, and system pressure Ps enters valve body 2 by P mouthfuls, hydraulic pressure opening power is generated at spool 303, if hydraulic Opening force is less than preset pressure Pe, F1 < F2, then can make to be in close contact at the conical surface of spool 303 and the hole of valve seal 301, real It now seals, spool 303 and valve seal 301 are maintained at the basic valve position of closing, then are cut off with T mouthfuls of access for P mouthfuls；If System pressure Ps increases to so that hydraulic pressure opening power is greater than the degree of preset pressure Pe, and F1 > F2, then spool 303 is together with push rod 304 move right together, and spool 303 is pushed out basic valve position, P mouthfuls and and T mouthfuls between access connect, then flow through P mouthfuls Liquid, which is understood, flows to T mouthfuls at some conical surface by spool 303, to realize overflow, the aperture of spool 303 is with system pressure The increase of power Ps and proportional increase, until reaching the maximum allowable volume flow of valve.Default pressure in inflatable accumulator 6 Power Pe is arranged by regulating valve 5.

The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations Also it should be regarded as protection scope of the present invention.