Positive pressure anti-explosion pressure release valve

Abstract

The positive pressure anti-explosion pressure release valve comprises a valve body assembly, the valve body assembly comprises a valve body shell, a pressure release opening, a liquid inlet, a liquid outlet, a partition plate, a speed reduction turbine and an elastic check block, the left side of the valve body shell is connected with the pressure release opening, the right side of the valve body shell is connected with the liquid inlet, and the liquid outlet is connected with the partition plate. And the lower end of the valve body shell is integrally connected with a liquid outlet, a partition plate is installed in the middle of the interior of the valve body shell, a speed reduction turbine is rotationally installed at the lower end of the interior of the valve body shell, and an elastic check block is arranged on one side of the speed reduction turbine. Compared with an existing common positive-pressure anti-explosion pressure release valve, the positive-pressure anti-explosion pressure release valve has the advantages that the influence of impact force of liquid flowing on the valve element can be avoided, so that the influence on the work of equipment, the pressure interference of the impact force on the equipment and the incapability of the equipment to work according to set pressure can be avoided, and the equipment is provided with a locking structure; therefore, locking is carried out after equipment adjustment is completed, and the adjusted pressure is prevented from changing in the working process.

Description

TECHNICAL FIELD

[0001] The utility model relates to positive pressure explosion -proof pressure relief valve technical field, specifically is a kind of positive pressure explosion -proof pressure relief valve. BACKGROUND

[0002] Positive pressure explosion -proof pressure relief valve is an important safety device for positive pressure explosion -proof system, its main function is: when the internal pressure of positive pressure explosion -proof system exceeds the set safety value, pressure relief valve can be automatically opened, release excess pressure, to prevent system from explosion or damage equipment due to excessive pressure, it is widely used in dangerous places where flammable and explosive gas or dust exist, such as petroleum chemical industry, pharmaceutical, coating and other industries, to ensure the safety of production process.

[0003] The existing positive pressure explosion -proof pressure relief valve is directly flushed into liquid during working, but the impact force generated by directly flushing liquid into the equipment can affect the internal discovery of the equipment, so that the force borne by the valve core is the liquid pressure plus the impact force of water, so that the equipment is not for pressure, so that the equipment cannot work normally according to the set pressure, and cannot meet the use requirements of people, and the technical innovation is carried out on the basis of the existing positive pressure explosion -proof pressure relief valve. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of positive pressure explosion -proof pressure relief valve to solve the above-mentioned background technology and cannot meet the use requirements of people well.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of positive pressure explosion -proof pressure relief valve, including valve body assembly, the valve body assembly includes valve body shell, pressure relief port, liquid inlet, liquid outlet, baffle, speed reduction turbine and elastic stopper, and the left side of valve body shell is connected with pressure relief port, the right side of valve body shell is connected with liquid inlet, and the lower end of valve body shell is integrally connected with liquid outlet, the middle part of the inside of valve body shell is installed with baffle, and the lower end of the inside of valve body shell is rotatably installed with speed reduction turbine, one side of speed reduction turbine is provided with elastic stopper.

[0006] Further, the upper side of the baffle is provided with valve core assembly, and the upper side of the valve core assembly is provided with adjusting assembly, and the upper end of the adjusting assembly is provided with locking assembly outside.

[0007] Further, the valve core assembly includes valve core cover and rubber pad, and the inner side of valve core cover is provided with rubber pad.

[0008] Further, the adjusting assembly includes cylinder, sealing pad, rotating column and threaded block, and the lower end of cylinder is installed with sealing pad, the upper wall of cylinder is penetrated with rotating column, and the lower end of rotating column is connected with threaded block.

[0009] Further, the adjusting assembly further comprises a rotating block, a first spring, a lifting block and a pressing rod, the lower end of the rotating block is rotationally connected with the screw block, the lower end of the rotating block is connected with the first spring, the lower end of the first spring is connected with the lifting block, and the lower end of the lifting block is connected with the pressing rod.

[0010] Further, the locking assembly comprises a square cover, a rubber friction block and an annular block, the rubber friction block is arranged in the middle of the square cover, and the outer side of the rubber friction block is connected with the annular block.

[0011] Further, the locking assembly further comprises a second spring, a sliding rod and a pressing block, one side of the annular block is connected with the second spring, the other side of the annular block is connected with the sliding rod, and the side, away from the annular block, of the sliding rod is connected with the pressing block.

[0012] Compared with the prior art, the device can avoid the impact of liquid flow on the valve core, thereby affecting the working of the device, so that the impact force causes pressure interference to the device, and the device cannot work according to the set pressure.

[0013] 1. The angle of the liquid inlet is downwardly impacted when the liquid enters the device, so that the liquid does not directly impact the valve core assembly, and the rotation of the speed reduction turbine has certain resistance, and the liquid entering the valve body shell can also be slowed down, the impact force of the liquid flow is reduced, and the elastic stopper also hinders the rotation of the speed reduction turbine, so that the influence of the liquid flow on the valve core assembly can be better reduced, the device can better work according to the set pressure, and pressure interference does not occur.

[0014] 2. The elastic structure between the annular block, the second spring and the square cover can make the rubber friction block better contact the rotating column, so that the rubber friction block can hinder the rotation of the rotating column and form a fixing effect on the rotating column, so as to avoid the rotation of the rotating column during the working of the device, affect the set pressure and cause the device to work abnormally. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the sectional structure of the utility model;

[0016] Figure 2 It is an enlarged sectional structure of the adjusting assembly of the utility model;

[0017] Figure 3 It is a three-dimensional enlarged structure of the locking assembly of the utility model.

[0018] In the diagram: 1. Valve body assembly; 101. Valve body shell; 102. Pressure relief port; 103. Liquid inlet; 104. Liquid outlet; 105. Baffle; 106. Reduction turbine; 107. Elastic stop block; 2. Valve core assembly; 201. Valve core cover; 202. Rubber pad; 3. Adjustment assembly; 301. Cylinder; 302. Sealing gasket; 303. Rotating column; 304. Threaded block; 305. Rotating block; 306. First spring; 307. Lifting block; 308. Pressing rod; 4. Locking assembly; 401. Square cover; 402. Rubber friction block; 403. Annular block; 404. Second spring; 405. Sliding rod; 406. Pressing block. Detailed Implementation

[0019] like Figure 1 As shown, a positive pressure explosion-proof pressure relief valve includes a valve body assembly 1. The valve body assembly 1 includes a valve body shell 101, a pressure relief port 102, a liquid inlet 103, a liquid outlet 104, a partition 105, a reduction turbine 106, and an elastic stop 107. The pressure relief port 102 is connected to the left side of the valve body shell 101, the liquid inlet 103 is connected to the right side of the valve body shell 101, and the liquid outlet 104 is integrally connected to the lower end of the valve body shell 101. A partition 105 is installed in the middle of the interior of the valve body shell 101, and a reduction turbine 106 is rotatably installed in the lower interior of the valve body shell 101. An elastic stop 107 is provided on one side of the reduction turbine 106.

[0020] The liquid enters the device through the inlet 103 at a downward angle, preventing it from directly impacting the valve core assembly 2. Simultaneously, the rotation of the reduction turbine 106 provides resistance, further slowing the liquid entering the valve body housing 101 and reducing the impact force of the liquid flow. The elastic stop 107 also obstructs the rotation of the reduction turbine 106, further minimizing the impact of the liquid flow on the valve core assembly 2. This allows the device to operate at the set pressure without pressure interference.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, a valve core assembly 2 is provided above the partition 105, and an adjustment assembly 3 is provided above the valve core assembly 2. A locking assembly 4 is provided on the upper exterior of the adjustment assembly 3.

[0022] like Figure 1 As shown, the valve core assembly 2 includes a valve core cover 201 and a rubber pad 202, and the rubber pad 202 is provided on the inner side of the valve core cover 201.

[0023] The rubber gasket 202 can assist the valve core cover 201 and increase the sealing performance of the valve core cover 201.

[0024] like Figure 2As shown, the adjustment assembly 3 includes a cylinder 301, a sealing gasket 302, a rotating column 303, and a threaded block 304. The sealing gasket 302 is installed at the lower end of the cylinder 301, the rotating column 303 passes through the upper wall of the cylinder 301, and the threaded block 304 is connected to the lower end of the rotating column 303. The adjustment assembly 3 also includes a rotating block 305, a first spring 306, a lifting block 307, and a pressing rod 308. The rotating block 305 is rotatably connected to the lower end of the threaded block 304, the first spring 306 is connected to the lower end of the rotating block 305, the lifting block 307 is connected to the lower end of the first spring 306, and the pressing rod 308 is connected to the lower end of the lifting block 307.

[0025] Rotating the rotating column 303 causes the threaded block 304 to rotate. The threaded connection between the threaded block 304 and the cylinder 301 causes the threaded block 304 to press down, thereby compressing the first spring 306. The threaded block 304 is rotatably connected to the rotating block 305, and the sealing gasket 302 can seal the pressing rod 308.

[0026] like Figure 3 As shown, the locking assembly 4 includes a square cover 401, a rubber friction block 402, and an annular block 403. The rubber friction block 402 is disposed in the middle of the inside of the square cover 401, and the annular block 403 is connected to the outside of the rubber friction block 402. The locking assembly 4 also includes a second spring 404, a sliding rod 405, and a pressing block 406. The second spring 404 is connected to one side of the annular block 403, the sliding rod 405 is connected to the other side of the annular block 403, and the pressing block 406 is connected to the side of the sliding rod 405 away from the annular block 403.

[0027] The elastic structure between the ring block 403 and the square cover 401 via the second spring 404 enables the rubber friction block 402 to better contact the rotating column 303, thereby allowing the rubber friction block 402 to obstruct the rotating column 303 and fix it in place. This prevents the rotating column 303 from rotating during operation, which would affect the set pressure and cause the equipment to malfunction.

[0028] Working principle: in the use of the positive pressure explosion-proof pressure relief valve, first through the liquid inlet 103 connected to the water pipeline equipment, through the liquid outlet 104 connected to the water pipeline, through the pressure relief port 102 connected to the pressure relief pipeline, then the staff with a hand press block 406, so that the sliding rod 405 to the ring block 403, two rubber friction block 402 and rotating column 303 away, then through another hand rotating column 303, driving screw block 304 rotation, through the threaded connection between the screw block 304 and cylinder 301 make screw block 304 down press, so that the first spring 306 compression, screw block 304 and rotating block 305 between the rotating connection, through the threaded connection make screw block 304 has rotating function, will not affect the work of the first spring 306, the first spring 306 compression will exert a certain pressure on the lifting block 307, so that the press bar 308 make valve core cover 201 has a certain pressure, this pressure is the device required pressure relief pressure, the staff can according to the length of the rotating column 303 down to determine the pressure of the first spring 306, sealing gasket 302 can be sealed at the press bar 308, avoid leakage, when the staff on the device adjustment is completed can release press block 406, this rely on ring block 403 through the second spring 404 and square cover 401 between the elastic structure can make rubber friction block 402 tightly extruded rotating column 303, rotating column 303 fixed, avoid rotating column 303 in the work of rotation, this equipment is installed, can open the device installed pipeline, make the device installed pipeline work, the device inside the liquid flow will flow into the valve body shell 101 through the liquid inlet 103, through the speed reducing turbine 106 can cause a certain resistance to the liquid into the device, the liquid flow power into the speed reducing turbine 106 rotating power, so as to reduce the impact of liquid flow, liquid flow to impact on valve core cover 201.

Claims

1. A positive pressure explosion relief valve, characterized in that, The utility model provides a valve body assembly (1) and valve core assembly (2) and adjusting assembly (3) and lock assembly (4) are arranged, and the valve body assembly (1) includes valve body shell (101), pressure relief port (102), liquid inlet (103), liquid outlet (104), baffle (105), speed reduction turbine (106) and elastic stopper (107), and the left side of valve body shell (101) is connected with pressure relief port (102), the right side of valve body shell (101) is connected with liquid inlet (103), and the lower end of valve body shell (101) is integrally connected with liquid outlet (104), the inside middle part of valve body shell (101) is installed with baffle (105), and the inside lower end of valve body shell (101) is rotatably installed with speed reduction turbine (106), and one side of speed reduction turbine (106) is provided with elastic stopper (107).

2. A positive pressure explosion relief valve according to claim 1, characterised in that The upper side of baffle (105) is provided with valve core assembly (2), and the upper side of valve core assembly (2) is provided with adjusting assembly (3), and the upper end of adjusting assembly (3) is provided with lock assembly (4) outside.

3. A positive pressure explosion relief valve according to claim 2, wherein, Valve core assembly (2) includes valve core cover (201) and rubber pad (202), and the inner side of valve core cover (201) is provided with rubber pad (202).

4. A positive pressure explosion relief valve according to claim 2, wherein Adjusting assembly (3) includes cylinder (301), sealing pad (302), rotating column (303) and threaded block (304), and the lower end of cylinder (301) is installed with sealing pad (302), the upper wall of cylinder (301) is penetrated with rotating column (303), and the lower end of rotating column (303) is connected with threaded block (304).

5. A positive pressure explosion relief valve according to claim 4, wherein, Adjusting assembly (3) further includes rotating block (305), first spring (306), lifting block (307) and pressing rod (308), and the lower end of threaded block (304) is rotatably connected with rotating block (305), the lower end of rotating block (305) is connected with first spring (306), the lower end of first spring (306) is connected with lifting block (307), and the lower end of lifting block (307) is connected with pressing rod (308).

6. A positive pressure explosion relief valve according to claim 2, wherein Lock assembly (4) includes square cover (401), rubber friction block (402) and annular block (403), and the inside middle part of square cover (401) is provided with rubber friction block (402), and the outer side of rubber friction block (402) is connected with annular block (403).

7. A positive pressure explosion relief valve according to claim 6, wherein, Lock assembly (4) further includes second spring (404), sliding rod (405) and pressing block (406), and one side of annular block (403) is connected with second spring (404), the other side of annular block (403) is connected with sliding rod (405), and the side, away from annular block (403) of sliding rod (405) is connected with pressing block (406).

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