CN203374907U - Safety valve for high-pressure reciprocating pump - Google Patents
Safety valve for high-pressure reciprocating pump Download PDFInfo
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- CN203374907U CN203374907U CN201320452352.1U CN201320452352U CN203374907U CN 203374907 U CN203374907 U CN 203374907U CN 201320452352 U CN201320452352 U CN 201320452352U CN 203374907 U CN203374907 U CN 203374907U
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- valve
- reciprocating pump
- cone
- valve body
- joint
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Abstract
Provided is a safety valve for a high-pressure reciprocating pump. The safety valve for the high-pressure reciprocating pump comprises a valve sleeve, an adjusting bolt, a locking nut, a guide rod, a plurality of belleville springs, a valve body, a cone valve, a valve seat and a connector. According to the safety valve for the high-pressure reciprocating pump, the cone valve is made of high alloy stainless steel materials, the hardness of the materials of the cone valve is higher than that of the materials of the guide rod because the pressure borne by the cone valve is large and the cone valve is damaged easily, only the cone valve needs to be replaced when broken, therefore, production cost can be reduced, and concentricity is good. In addition, the belleville springs serve as elastic components, sensibility is high as the belleville springs are large in stuffiness, therefore, response is quick, and safety is good. Furthermore, the valve seat is arranged at the rear end of the connector inside the valve body, the valve seat is made of high hardness materials, therefore, the connector can be prevented from being damaged, and thus operation cost is reduced.
Description
Technical field
The utility model belongs to the Safeguard technical field, particularly relates to a kind of safety valve for high pressure reciprocating pump.
Background technique
Safety valve claims again relief valve; it is a kind of safety protection valve; usually be connected on high-tension apparatuses such as high-pressure service pump, boiler or high pressure pipe line; under normal circumstances; open-shut device on it is subject to External Force Acting in normally off; pressure medium in high-tension apparatus or pipeline raises and automatically opens while surpassing specified value, by discharge medium outside system, prevents that in pipeline or equipment, pressure medium surpasses specified value, to ensure personal safety the safe operation with equipment.Fig. 1 is a kind of longitudinal cross-section of the safety valve for high pressure reciprocating pump sectional view of commonly using at present.As shown in Figure 1, this safety valve comprise valve body 1, regulate plug screw 2, locking nut 3, two steel balls 4, two valve gaps 5, helical spring 6 and joints 7; Wherein valve body 1 in a tubular form, and is formed with an outage 8 on the circumferential surface of middle part; Regulate the end opening place that plug screw 2 is threaded in valve body 1, and the interior edge face middle part is formed with a groove; Locking nut 3 is connected to be regulated on plug screw 2 near the position of valve body 1 end, for fixing, regulates plug screw 2; Helical spring 6 is arranged in the middle part cavity of valve body 1; Joint 7 is connected to the other end opening of valve body 1, and middle part has been formed through a shaft orientation liquid feeding hole 9, and the interior edge face middle part also is formed with a groove simultaneously, and outer end connects high-tension apparatus or high pressure pipe line; Valve gap 5 is nail shape structure, its head portion intermediate portion is formed with a groove, the mode that two valve gaps 5 are inserted in helical spring 6 inside, two ends with tip is symmetricly set in the middle part cavity of valve body 1, and be respectively equipped with a steel ball 4 between the head of each valve gap 5 and adjusting plug screw 2 or joint 7 interior edge faces, the two ends of steel ball 4 lay respectively at valve gap 5, regulate in the groove on plug screw 2 and joint 7.The working principle of this safety valve is: at first according to the requirement of high-pressure system, utilize the mode of turn adjusting plug screw 2 positions to make helical spring 6 produce compression, thereby the elastic force of utilizing helical spring 6 makes the steel ball 4 that is positioned at joint 7 upper grooves can tightly withstand on the inner port of inlet opening 9 under normal pressure, then screw locking nut 3, afterwards the outer end of joint 7 is connected on high-tension apparatus or high pressure pipe line, at this moment just can have used.In use, if the pressure of the interior liquid of high-tension apparatus or high pressure pipe line is less than the elastic force of helical spring 6, safety valve will be failure to actuate, once in high-tension apparatus or high pressure pipe line, the pressure of liquid surpasses setting value, highly pressurised liquid will inwardly push the steel ball 4 that is positioned at inlet opening 9 inner port places and reach and the contacted valve gap 5 of this steel ball 4 by the inlet opening 9 on joint 7, and then compression helical spring 6, when this steel ball 4 leaves the inner port of inlet opening 9, highly pressurised liquid will enter in the cavity of valve body 1, then by outage 8, discharge, reach thus the purpose of protection high-tension apparatus or high pressure pipe line, after the pressure in system recovers normally, now highly pressurised liquid acts on steel ball 4 power and will reduce, helical spring 6 will rely on the elastic force resilience, make thus to be positioned at the steel ball 4 at inlet opening 9 inner port places and reset with the contacted valve gap 5 of this steel ball 4.But there is following point in the safety valve of this prior art: as mentioned above, because this safety valve is the ball sealing, the rear sealing that resets is not fine, so easily produce and leak.In addition, the rigidity of helical spring 6 is relatively low, so poor sensitivity, will cause response lag like this, so poor stability.In addition, the part contacted with steel ball 4 on joint 7 is fragile, at this moment just needs to change whole new joint 7, therefore causes operating cost high.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of reasonable in design, so the safety valve for high pressure reciprocating pump of good airproof performance.
In order to achieve the above object, the safety valve for high pressure reciprocating pump that the utility model provides comprises valve pocket, adjusting bolt, locking nut, guide rod, a plurality of butterfly spring, valve body, cone valve, valve seat and joint; Wherein valve pocket in a tubular form; Adjusting bolt is threaded in the open rearward end place of valve pocket, and the center portion, end that is positioned at valve pocket inside is formed with a center hole; Locking nut is connected on adjusting bolt the position near the valve pocket outer end, for fixing adjusting bolt; Guide rod is arranged on the inside of valve pocket, and rear end is inserted in the center hole on adjusting bolt, and front end is outwardly is formed with a cylindrical head; A plurality of butterfly springs are enclosed within on the outer surface of guide rod middle part side by side; Also in a tubular form, an end inserts and is arranged on the front end inside of valve pocket valve body, and is formed with an outage on the circumferential surface of middle part; Cone valve is nail shape structure, is arranged on the inside of valve body, and its head portion ear end face contacts with the head front-end face of guide rod; Joint is connected to the front opening place of valve body, and middle part has been formed through a shaft orientation liquid feeding hole; Ringwise, the mode that is close to the joint ear end face with front-end face is arranged on the inside of valve body to valve seat, and its center hole is connected with the inlet opening on joint, and the front end tip of cone valve can be inserted in the inside, center hole rear end of valve seat.
The described safety valve for high pressure reciprocating pump also comprises two O-ring seals, the head outer peripheral surface intermediate portion of cone valve is formed with an annular groove simultaneously, and cave inward on the exterior edge face of valve seat and be formed with a circular groove, two O-ring seals are separately positioned in above-mentioned annular groove and circular groove.
On described valve seat, the center hole rearward end outwards forms, and is a conical transition face between this inner, position and center hole front portion.
Between described valve body and valve pocket, adopt thread connecting mode to interconnect.
Between described valve body and joint, adopt thread connecting mode to interconnect.
The safety valve for high pressure reciprocating pump that the utility model provides is to adopt the high-alloy stainless steel material to make the cone valve on it, and the hardness of cone valve material is greater than the hardness of guide rod material, this is because the pressure that cone valve bears is large, so easily occur damaging, only need change cone valve during damage gets final product, so can reduce production costs, and good concentricity.In addition, adopt the butterfly spring as elastic element, because its rigidity is large, so highly sensitive, therefore rapidly, Security is good in response.In addition, in valve body spigot rear end, be provided with a valve seat, and adopt the material of high hardness to make valve seat, so just can prevent that damaging from appearring in joint, thereby reduce operating cost.
The accompanying drawing explanation
Fig. 1 is a kind of longitudinal cross-section of the safety valve for high pressure reciprocating pump sectional view of commonly using at present.
The longitudinal cross-section of the safety valve for the high pressure reciprocating pump sectional view that Fig. 2 provides for the utility model.
Embodiment
The safety valve for high pressure reciprocating pump the utility model provided below in conjunction with the drawings and specific embodiments is elaborated.
As shown in Figure 2, the safety valve for high pressure reciprocating pump that the utility model provides comprises valve pocket 10, adjusting bolt 11, locking nut 12, guide rod 13, a plurality of butterfly spring 14, valve body 15, cone valve 16, valve seat 17 and joint 18; Wherein valve pocket 10 in a tubular form; Adjusting bolt 11 is threaded in the open rearward end place of valve pocket 10, and the center portion, end that is positioned at valve pocket 10 inside is formed with a center hole 20; Locking nut 12 is connected on adjusting bolt 11 position near valve pocket 10 outer ends, for fixing adjusting bolt 11; Guide rod 13 is arranged on the inside of valve pocket 10, and rear end is inserted in the center hole 20 on adjusting bolt 11, and front end is outwardly is formed with a cylindrical head 26; A plurality of butterfly springs 14 are enclosed within on guide rod 13 middle part outer surfaces side by side; Also in a tubular form, an end inserts and is arranged on the front end inside of valve pocket 10 valve body 15, and is formed with an outage 21 on the circumferential surface of middle part; Cone valve 16 is nail shape structure, is arranged on the inside of valve body 15, and its head portion ear end face contacts with head 26 front-end faces of guide rod 13; Joint 18 is connected to the front opening place of valve body 15, and middle part has been formed through a shaft orientation liquid feeding hole 23; Ringwise, the mode that is close to joint 18 ear end faces with front-end face is arranged on the inside of valve body 15 to valve seat 17, and its center hole is connected with the inlet opening 23 on joint 18, and the front end tip of cone valve 16 can be inserted in the inside, center hole rear end of valve seat 17.
The described safety valve for high pressure reciprocating pump also comprises two O-ring seals 19, the head outer peripheral surface intermediate portion of cone valve 16 is formed with an annular groove 22 simultaneously, and cave inward on the exterior edge face of valve seat 17 and be formed with a circular groove 24, two O-ring seals 19 are separately positioned in above-mentioned annular groove 22 and circular groove 24, wherein the O-ring seals 19 on valve seat 17 passes through surface of contact between valve seat 17 and joint 18 to valve body 15 internal leak for preventing highly pressurised liquid, O-ring seals 19 on cone valve 16 is for preventing that highly pressurised liquid from passing through surface of contact between cone valve 16 and valve body 15 to valve pocket 10 internal leak.
On described valve seat 17, the center hole rearward end outwards forms, and is a conical transition face between this inner, position and center hole front portion.
Between described valve body 15 and valve pocket 10, adopt thread connecting mode to interconnect.
Between described valve body 15 and joint 18, adopt thread connecting mode to interconnect.
The material hardness that described cone valve 16 and valve seat 17 adopt is greater than the material hardness that guide rod 13 adopts.
The working principle of the safety valve for high pressure reciprocating pump now the utility model provided is described below: at first according to the requirement of high-pressure system, utilize the mode of turn adjusting bolt 11 positions to make a plurality of butterfly springs 14 produce compression, thereby the elastic force of utilizing butterfly spring 14 makes the front end tip of cone valve 16 be inserted in the inside, rear end of center hole on valve seat 17 by the head 26 of guide rod 13, now, tip rear end surface on cone valve 16 contacts with the conical transition face on valve seat 17 just, thereby this center hole rear end is tightly sealed up, then screw locking nut 12, afterwards the outer end of joint 18 is connected on high-tension apparatus or high pressure pipe line, at this moment just can use.In use, if the pressure of the interior liquid of high-tension apparatus or high pressure pipe line is less than the elastic force of butterfly spring 14, the safety valve will be failure to actuate, once in high-tension apparatus or high pressure pipe line, the pressure of liquid surpasses setting value, highly pressurised liquid will inwardly push cone valve 16 by the inlet opening 23 on joint 18 and the center hole on valve seat 17, make to move after cone valve 16, cone valve 16 promotes guide rod 13 again and together moves afterwards, in this process, the head 26 of guide rod 13 will compress butterfly spring 14, when the rear end of center hole on 17 is lifted off a seat in the tip on cone valve 16, highly pressurised liquid will enter in the cavity of valve body 15, then by outage 21, discharge, reach thus the purpose of protection high-tension apparatus or high pressure pipe line, after the pressure in system recovers normally, the power that now highly pressurised liquid acts on cone valve 16 will reduce, butterfly spring 14 will rely on the elastic force resilience, head 26 by guide rod 13 resets cone valve 16 thus.
Claims (5)
1. the safety valve for high pressure reciprocating pump, it is characterized in that: described safety valve comprises valve pocket (10), adjusting bolt (11), locking nut (12), guide rod (13), a plurality of butterfly spring (14), valve body (15), cone valve (16), valve seat (17) and joint (18); Wherein valve pocket (10) in a tubular form; Adjusting bolt (11) is threaded in the open rearward end place of valve pocket (10), and is positioned at the inner center portion, end of valve pocket (10) and is formed with a center hole (20); Locking nut (12) is connected to the upper position near valve pocket (10) outer end of adjusting bolt (11), for fixing adjusting bolt (11); Guide rod (13) is arranged on the inside of valve pocket (10), and rear end is inserted in the center hole (20) on adjusting bolt (11), the outwardly cylindrical head (26) that is formed with of front end; A plurality of butterfly springs (14) are enclosed within on the outer surface of guide rod (13) middle part side by side; Also in a tubular form, an end inserts and is arranged on the front end inside of valve pocket (10) valve body (15), and is formed with an outage (21) on the circumferential surface of middle part; Cone valve (16) is nail shape structure, is arranged on the inside of valve body (15), and its head portion ear end face contacts with head (26) front-end face of guide rod (13); Joint (18) is connected to the front opening place of valve body (15), and middle part has been formed through a shaft orientation liquid feeding hole (23); Valve seat (17) ringwise, the mode that is close to joint (18) ear end face with front-end face is arranged on the inside of valve body (15), its center hole is connected with the inlet opening (23) on joint (18), and the front end tip of cone valve (16) can be inserted in the inside, center hole rear end of valve seat (17).
2. the safety valve for high pressure reciprocating pump according to claim 1, it is characterized in that: described safety valve also comprises two O-ring seals (19), the head outer peripheral surface intermediate portion of cone valve (16) is formed with an annular groove (22) simultaneously, and cave inward on the exterior edge face of valve seat (17) and be formed with a circular groove (24), two O-ring seals (19) are separately positioned in above-mentioned annular groove (22) and circular groove (24).
3. the safety valve for high pressure reciprocating pump according to claim 1 is characterized in that: the upper center hole rearward end of described valve seat (17) outwards forms, and this position is inner and the center hole front portion between be a conical transition face.
4. the safety valve for high pressure reciprocating pump according to claim 1, is characterized in that: between described valve body (15) and valve pocket (10), adopt thread connecting mode to interconnect.
5. the safety valve for high pressure reciprocating pump according to claim 1, is characterized in that: between described valve body (15) and joint (18), adopt thread connecting mode to interconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320452352.1U CN203374907U (en) | 2013-07-26 | 2013-07-26 | Safety valve for high-pressure reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320452352.1U CN203374907U (en) | 2013-07-26 | 2013-07-26 | Safety valve for high-pressure reciprocating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374907U true CN203374907U (en) | 2014-01-01 |
Family
ID=49837436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320452352.1U Expired - Lifetime CN203374907U (en) | 2013-07-26 | 2013-07-26 | Safety valve for high-pressure reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506500A (en) * | 2018-03-08 | 2018-09-07 | 上海锋机五金模具有限公司 | A kind of safety pressure-regulating valve and its implementing process |
-
2013
- 2013-07-26 CN CN201320452352.1U patent/CN203374907U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506500A (en) * | 2018-03-08 | 2018-09-07 | 上海锋机五金模具有限公司 | A kind of safety pressure-regulating valve and its implementing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No.15, Xinghua second branch road, economic and Technological Development Zone, Xiqing District, Tianjin Patentee after: TIANJIN TONGJIE HIGH PRESSURE PUMP Co.,Ltd. Address before: No.15, Xinghua third branch road, development zone, Xiqing District, Tianjin 300385 Patentee before: TIANJIN TONGJIE HIGH PRESSURE PUMP Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |