CN112032134A

CN112032134A - Fireproof hydraulic control valve

Info

Publication number: CN112032134A
Application number: CN202010922338.8A
Authority: CN
Inventors: 厉全明; 沈国飞; 罗鑫磊; 赵仁华; 张松; 于成林; 翁晨凯
Original assignee: Zhejiang Kunbo Precision Technology Co ltd
Current assignee: Zhejiang Kunbo Precision Technology Co ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2020-12-04
Anticipated expiration: 2040-09-04
Also published as: CN112032134B

Abstract

The invention discloses a fireproof hydraulic control valve, which comprises a valve body, a liquid inlet, a liquid outlet, a contraction section, a valve cover, a diaphragm, a lifting rod, a pressure head, a connecting surface and a control regulator, wherein the liquid inlet and the liquid outlet are respectively arranged at the left end and the right end of the valve body, the valve cover is arranged at the top of the valve body, the diaphragm is arranged between the valve cover and a valve cover mounting port, the lifting rod is arranged in the valve cover, the pressure head is arranged at the bottom of the lifting rod, the connecting surface is arranged at the top of the valve cover, the control regulator is arranged on the connecting surface, and the upper end of the lifting rod is positioned in the control regulator. And also has good corrosion resistance.

Description

Fireproof hydraulic control valve

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of hydraulic control valve equipment, in particular to a fireproof hydraulic control valve.

[ background of the invention ]

The hydraulic control valve has the function in a hydraulic system of controlling and regulating the flow direction, pressure and flow of oil in the hydraulic system, so that the actuator and the working mechanism driven by the actuator obtain required movement direction, thrust, movement speed and the like. Any hydraulic system, no matter how simple it is, cannot lack a hydraulic valve; the hydraulic mechanical equipment with the same technical purpose can form various hydraulic system schemes with different oil circuit structures by different combinations of hydraulic valves. Therefore, the hydraulic valve is the most widely used and active part with the most varieties and specifications in the hydraulic technology; whether a newly designed or operating hydraulic system will operate properly and reliably in accordance with established requirements depends in large part on the performance of the various hydraulic valves employed therein and whether parameter matching is reasonable.

The hydraulic control valve that has now is when facing the conflagration condition of proruption, its electromagnetic control mechanism appears damaging easily under high temperature environment, personnel can't realize the control to the valve through electromagnetic mechanism, lead to the flammable fluid in the pipeline can't in time discharge, finally lead to flammable fluid in the pipeline to leak, make the fire incident further upgrade, furthermore, current hydraulic control valve, antipollution ability is low, when receiving water stain, when polluting such as greasy dirt, can lead to electromagnetic control mechanism malfunctioning, greatly reduced hydrovalve automatic control's stability, therefore, it is necessary to provide a fire prevention hydraulic control valve.

[ summary of the invention ]

The invention aims to solve the problems in the prior art, and provides a fireproof hydraulic control valve which is simple in structure and reasonable in design, can automatically open a valve body passage under the condition that a control regulator fails, is convenient for workers to drain flammable fluid in a pipeline, prevents the flammable fluid from leaking to further promote fire, and has good corrosion resistance.

In order to achieve the purpose, the invention provides a fireproof hydraulic control valve which comprises a valve body, a liquid inlet, a liquid outlet, a contraction section, a valve cover, a diaphragm, a lifting rod, a pressure head, a connecting surface and a control regulator, a liquid inlet and a liquid outlet are respectively arranged at the left end and the right end of the valve body, a contraction section is arranged between the liquid inlet and the valve body and between the liquid outlet and the valve body, a valve cover mounting opening is arranged at the top of the valve body, a valve cover is arranged on the valve cover mounting opening, a diaphragm is arranged between the valve cover and the valve cover mounting opening, a lifting rod is arranged in the valve cover, a pressure head is arranged at the bottom of the lifting rod, the lower end of the pressure head is tightly attached to the upper surface of the diaphragm, the top of valve gap is equipped with the connection face, be equipped with the control regulator on the connection face, the upper end of lifter is located inside the control regulator, the inside spring that still is equipped with of valve gap, the spring winding is in the outside of lifter.

Preferably, the valve body is oval in shape, the valve body is a nodular cast iron product, a lining is arranged on the inner wall of the valve body, an arc protrusion is arranged on the bottom wall inside the valve body, an arc groove is arranged at the center of the arc protrusion, and the shape of the arc groove is the same as that of the bottom of the pressure head.

Preferably, the convex edges of the liquid inlet and the liquid outlet are respectively provided with a first connecting screw hole and a second connecting screw hole, and the back side surfaces of the liquid inlet and the liquid outlet are respectively provided with a first sealing ring and a second sealing ring.

Preferably, a first spring groove is formed in the top wall of the interior of the valve cover, the upper end of the spring is fixedly installed in the first spring groove, the spring is made of memory metal products, a plurality of fastening bolt assemblies are arranged on the bottom edge of the valve cover, and the valve cover and the diaphragm are fixedly installed on the valve cover installation opening through the fastening bolt assemblies.

Preferably, the diaphragm is made of fluorinated rubber, and the diaphragm is a circular disc film with thick center and thin edge.

Preferably, the lower extreme of lifter is equipped with spacing bulge loop, the inside of pressure head is equipped with the spacing annular corresponding with spacing bulge loop, be equipped with second spring recess on the top surface of pressure head, the lower extreme fixed mounting of spring is inside second spring recess.

Preferably, the connecting surface is provided with a plurality of third connecting screw holes, the number of the third connecting screw holes is at least 4, the connecting surface is also provided with a group of bilaterally symmetrical movable blocks, and each movable block is provided with a group of vertically symmetrical connecting grooves.

The invention has the beneficial effects that: the valve body, the valve cover, the diaphragm, the lifting rod, the pressure head, the spring, the first spring groove and the second spring groove are arranged, when a fire disaster happens, even if the control regulator cannot control the lifting of the lifting rod, the spring made of the memory metal can still automatically contract at high temperature to drive the lifting rod and the pressure head to ascend, so that the diaphragm is lifted, a valve body passage is opened, and inflammable fluid in a pipeline is discharged along the pipeline; the pressure head is isolated from the inflammable fluid in the valve body by arranging the diaphragm, so that the inflammable fluid is prevented from being in direct contact with the pressure head, the pressure head cannot be corroded by the inflammable fluid, and the corrosion resistance is further improved; the movable block with the connecting groove is arranged, so that the connecting adaptive size of the connecting surface is increased, the adjustable type power supply can be adaptive to control regulators with most sizes in the.

The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a front view of a fire protection hydraulic control valve of the present invention;

FIG. 2 is a schematic view showing the internal structure of a hydraulic fire prevention control valve according to the present invention;

fig. 3 is a plan view of a joint face in a fire prevention hydraulic control valve of the present invention.

In the figure: 1-valve body, 11-valve cover mounting port, 12-liner, 13-arc protrusion, 14-arc groove, 2-liquid inlet, 21-first connecting screw hole, 22-first sealing ring, 3-liquid outlet, 31-second connecting screw hole, 32-second sealing ring, 4-contraction section, 5-valve cover, 51-spring, 52-first spring groove, 53-fastening bolt component, 6-diaphragm, 7-lifting rod, 71-limiting convex ring, 8-pressure head, 81-limiting ring groove, 82-second spring groove, 9-connecting surface, 91-third connecting screw hole, 92-movable block, 93-connecting groove and 10-control regulator.

[ detailed description ] embodiments

Referring to the attached drawings, the fireproof hydraulic control valve comprises a valve body 1, a liquid inlet 2, a liquid outlet 3, a contraction section 4, a valve cover 5, a diaphragm 6, a lifting rod 7, a pressure head 8, a connecting surface 9 and a control regulator 10, wherein the liquid inlet 2 and the liquid outlet 3 are respectively arranged at the left end and the right end of the valve body 1, the contraction section 4 is arranged between the liquid inlet 2 and the liquid outlet 3 and the valve body 1, a valve cover mounting opening 11 is arranged at the top of the valve body 1, the valve cover 5 is arranged on the valve cover mounting opening 11, the diaphragm 6 is arranged between the valve cover 5 and the valve cover mounting opening 11, the lifting rod 7 is arranged in the valve cover 5, the pressure head 8 is arranged at the bottom of the lifting rod 7, the lower end of the pressure head 8 is tightly attached to the upper surface of the diaphragm 6, the connecting surface 9 is arranged at the top of the valve cover 5, the control, the valve cover 5 is also internally provided with a spring 51, and the spring 51 is wound on the outer side of the lifting rod 7.

Wherein, the whole valve body 1 that is oval, valve body 1 is the nodular cast iron goods, be equipped with inside lining 12 on the inner wall of valve body 1, be equipped with circular arc arch 13 on the diapire of valve body 1 inside, the center department of circular arc arch 13 is equipped with circular arc recess 14, circular arc recess 14's shape is the same with the bottom shape of pressure head 8.

Wherein, be equipped with first connection screw 21 and second connection screw 31 on the chimb of inlet 2 and liquid outlet 3 respectively, be equipped with first sealing washer 22 and second sealing washer 32 on the carried side face of the back of the body of inlet 2 and liquid outlet 3 respectively.

The valve cover is characterized in that a first spring groove 52 is formed in the top wall of the interior of the valve cover 5, the upper end of the spring 51 is fixedly installed in the first spring groove 52, the spring 51 is made of memory metal, a plurality of fastening bolt assemblies 53 are arranged on the bottom edge of the valve cover 5, and the valve cover 5 and the diaphragm 6 are fixedly installed on the valve cover installation opening 11 through the fastening bolt assemblies 53.

The diaphragm 6 is a fluorinated rubber product, and the diaphragm 6 is a circular film with a thick center and thin edges.

Wherein, the lower extreme of lifter 7 is equipped with spacing bulge loop 71, the inside of pressure head 8 is equipped with the spacing annular 81 corresponding with spacing bulge loop 71, be equipped with second spring groove 82 on the top surface of pressure head 8, spring 51's lower extreme fixed mounting is inside second spring groove 82.

Wherein, be equipped with a plurality of third on connecting the face 9 and connect screw 91, the quantity that screw 91 was connected to the third is 4 at least, still be equipped with a set of bilateral symmetry's movable block 92 on connecting the face 9, all be equipped with a set of longitudinal symmetry's connecting groove 93 on every movable block 92.

The working process of the invention is as follows:

in the working process of the fireproof hydraulic control valve, when the fireproof hydraulic control valve is in a fire environment, even if the control regulator 10 is burnt by the high-temperature environment, the spring 51 still contracts under the high-temperature environment to drive the pressure head 8 and the lifting rod 7 to ascend and raise the diaphragm 6, so that the liquid inlet 2 and the liquid outlet 3 of the valve body 1 are communicated, combustible fluid in a pipeline is led out finally, the combustible fluid is prevented from directly contacting with flame, the fire condition is aggravated, and the control regulator 10 is a ceramic control regulator.

Compared with the prior art, the invention has the beneficial effects that: the valve body 1, the valve cover 5, the diaphragm 6, the lifting rod 7, the pressure head 8, the spring 51, the first spring groove 52 and the second spring groove 82 are arranged, so that when a fire disaster happens, even if the control regulator 10 cannot control the lifting of the lifting rod 7, the spring 51 made of the memory metal material can still automatically contract at high temperature to drive the lifting rod 7 and the pressure head 8 to ascend, the diaphragm 6 is lifted, the passage of the valve body 1 is further opened, and inflammable fluid in a pipeline is discharged along the pipeline; by arranging the diaphragm 6, the pressure head 8 is isolated from the inflammable fluid in the valve body 1, the inflammable fluid is prevented from being in direct contact with the pressure head 8, the pressure head 8 cannot be corroded by the inflammable fluid, and the corrosion resistance is further improved; the movable block 92 with the connecting groove 93 is arranged, so that the connecting adaptation size of the connecting surface 9 is increased, the invention can be adapted to the control regulator 10 with most sizes in the market, and the applicability is increased.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims

1. A fire prevention hydraulic control valve characterized in that: comprises a valve body (1), a liquid inlet (2), a liquid outlet (3), a contraction section (4), a valve cover (5), a diaphragm (6), a lifting rod (7), a pressure head (8), a connecting surface (9) and a control regulator (10), wherein the left end and the right end of the valve body (1) are respectively provided with the liquid inlet (2) and the liquid outlet (3), the contraction section (4) is arranged between the liquid inlet (2) and the valve body (1) and between the liquid outlet (3) and the valve body (1), the top of the valve body (1) is provided with a valve cover mounting opening (11), the valve cover (5) is arranged on the valve cover mounting opening (11), the diaphragm (6) is arranged between the valve cover (5) and the valve cover mounting opening (11), the lifting rod (7) is arranged inside the valve cover (5), the bottom of the lifting rod (7) is provided with the pressure head (8), and the lower, the top of valve gap (5) is equipped with connects face (9), be equipped with control regulator (10) on connecting face (9), the upper end of lifter (7) is located inside control regulator (10), valve gap (5) inside still is equipped with spring (51), spring (51) winding is in the outside of lifter (7).

2. A fire protection hydraulic control valve as claimed in claim 1, characterized in that: the whole valve body (1) that is oval, valve body (1) is nodular cast iron goods, be equipped with inside lining (12) on the inner wall of valve body (1), be equipped with circular arc arch (13) on the diapire of valve body (1) inside, the center department of circular arc arch (13) is equipped with circular arc recess (14), the shape of circular arc recess (14) is the same with the bottom shape of pressure head (8).

3. A fire protection hydraulic control valve as claimed in claim 1, characterized in that: be equipped with first connection screw (21) and second connection screw (31) on the chimb of inlet (2) and liquid outlet (3) respectively, be equipped with first sealing washer (22) and second sealing washer (32) on the carried back side face of the body of inlet (2) and liquid outlet (3) respectively.

4. A fire protection hydraulic control valve as claimed in claim 1, characterized in that: be equipped with first spring recess (52) on the inside roof of valve gap (5), the upper end fixed mounting of spring (51) is inside first spring recess (52), spring (51) be memory metal product, be equipped with a plurality of fastening bolt subassemblies (53) on the base of valve gap (5), fastening bolt subassembly (53) with valve gap (5) and diaphragm (6) fixed mounting on valve gap installing port (11).

5. A fire protection hydraulic control valve as claimed in claim 1, characterized in that: the diaphragm (6) is a fluorinated rubber product, and the diaphragm (6) is a circular film with thick center and thin edge.

6. A fire protection hydraulic control valve as claimed in claim 1, characterized in that: the lower extreme of lifter (7) is equipped with spacing bulge loop (71), the inside of pressure head (8) is equipped with spacing annular (81) corresponding with spacing bulge loop (71), be equipped with second spring groove (82) on the top surface of pressure head (8), the lower extreme fixed mounting of spring (51) is inside second spring groove (82).

7. A fire protection hydraulic control valve as claimed in claim 1, characterized in that: connect and be equipped with a plurality of third on face (9) and connect screw (91), the quantity that screw (91) were connected to the third is 4 at least, still be equipped with a set of bilateral symmetry's movable block (92) on connecting face (9), all be equipped with a set of longitudinal symmetry's spread groove (93) on every movable block (92).