CN114183571A

CN114183571A - Integrated valve core breather valve capable of being maintained and maintained quickly

Info

Publication number: CN114183571A
Application number: CN202111528536.7A
Authority: CN
Inventors: 唐洋; 李光耀; 王杰; 马松华; 王国荣; 赵金海; 王金忠; 庞仁山; 朱军凯; 王明波
Original assignee: Southwest Petroleum University
Current assignee: Southwest Petroleum University
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-03-15
Anticipated expiration: 2041-12-14
Also published as: CN114183571B

Abstract

The invention discloses an integrated valve core breather valve capable of being maintained and overhauled quickly, which comprises: the valve body, integration case, valve gap, axial fixity module, laborsaving module, back-fire relief board, filter layer, dry layer, rain-proof cap, overlay, heat pipe are constituteed, and the integration case comprises valve disc support, malleation valve disc, plunger, negative pressure valve disc, upper cover, and laborsaving module comprises the pull rod shell, presses piece, spring expansion block. The integrated valve core can be quickly disassembled and assembled and is integrated, when the large-size breather valve is detected, only the integrated valve core needs to be disassembled, and the integrated valve core does not need to be hoisted by heavy equipment, so that the detection cost and the detection time are reduced; the valve cover is made into a flip structure, and a labor-saving module is designed, so that the valve cover can be opened and closed conveniently, the key part in the valve cover is convenient to disassemble and assemble, and the operation safety and maintenance work efficiency are improved; the heat pipe is designed in the valve body to balance the temperature in the breather valve, and the drying layer is added to absorb the moisture of the outside air, so that the valve disc is prevented from being frozen and losing efficacy.

Description

Integrated valve core breather valve capable of being maintained and maintained quickly

Technical Field

The invention relates to the field of oil and gas equipment, in particular to an integrated valve core breather valve capable of being maintained and overhauled quickly.

Background

The breather valve is a safe and energy-saving product for maintaining the air pressure balance of the storage tank and reducing the volatilization of the medium, the breather valve fully utilizes the bearing capacity of the storage tank to reduce the discharge of the medium, and the principle of the breather valve is to utilize the weight of a positive-negative pressure valve disc to control the positive exhaust pressure and the negative suction pressure of the storage tank; when the medium is pumped out of the tank, the pressure of the upper gas space in the tank is reduced, and the operation negative pressure of the breather valve is reached, the negative pressure valve disc of the top breather valve is pushed open by the atmosphere outside the tank, so that the external gas enters the tank, the pressure in the tank is not reduced any more, the pressure inside the tank is balanced with the pressure outside the tank, and the safety device of the storage tank is protected.

The breather valve needs to be detected, maintained and maintained regularly, and is generally maintained once a month, and is maintained twice a month in winter. Frequent detection, maintenance and maintenance increase staff's work load, and when especially involving jumbo size breather valve, weight is too big, need use the crane on ground to hang the breather valve to ground, and the rethread staff is fixed the breather valve to detection device and is detected.

It can be seen that the following problems exist in the inspection, maintenance and service of large size breather valves:

1. the existing breather valve needs to be hoisted and detected by heavy machinery for multiple times due to large volume and heavy weight in the frequent detection process, so that the breather valve is hoisted to a point to be detected from the high altitude, the cost is high, the efficiency is low, and the safety factor is also reduced.

2. When the existing breather valve cover is disassembled and assembled on a breather valve, the installed bolts are completely taken down, the valve cover is required to be placed on an oil tank, the valve cover is required to be re-installed on a valve body after the check is completed, and the alignment work of connecting holes is carried out again.

3. The existing breather valve has no effective anti-freezing function, can not solve the problems of crystallization and icing, and can cause the failure phenomenon of the valve disc which can not be opened when the valve disc reaches the opening pressure under the condition of crystallization or icing, thereby leading to the expansion or shrinkage deformation of the tank body.

Disclosure of Invention

Technical problem to be solved

In order to solve the problems, the invention provides the integrated valve core breather valve capable of being maintained and maintained quickly, the traditional breather valve is changed into the integrated valve core breather valve capable of being disassembled and assembled quickly, the whole disassembly and assembly are convenient, only the integrated valve core needs to be disassembled, and the hoisting operation of heavy equipment is not needed, so that the problems of high cost, low efficiency and low safety factor when the large-size breather valve is disassembled and assembled are solved; the flip type breather valve cover with the labor-saving pull rod is designed, the valve cover can be opened and closed conveniently, the connection holes do not need to be aligned repeatedly when the breather valve cover is closed, the breather valve cover can be installed by putting down the valve cover, and the problems that the process is complex, the internal key part is inconvenient to disassemble and assemble, and the operation safety is low when workers disassemble and assemble the valve cover are solved; the heat pipe and the drying layer are added in the breather valve, the heat pipe can balance the temperature of two places around the oil tank and the valve disc, and the drying layer is arranged at the air port and can absorb the moisture in the outside air, so that the problems of crystallization and icing are solved.

(II) technical scheme

A breather valve with an integrated valve core capable of being maintained and maintained quickly comprises a valve body, the integrated valve core, a valve cover, an axial fixing module, a labor-saving module, a fire retardant plate, a filter layer, a drying layer, a rain-proof cap, a covering plate and a heat pipe; the valve body is provided with a heat pipe groove, a covering plate positioning groove, a sealing groove I, a cavity, a sealing groove II, a supporting plate, a connecting hole I, a connecting hole II, a positioning rectangular groove, a connecting support, a connecting hole III and a connecting hole IV, the valve cover is provided with a screw hole and a pull rod groove, a heat pipe is placed in the heat pipe groove of the valve body, the covering plate is installed in the valve body, a fire retardant plate, a filtering layer, a drying layer and a rain-proof cap are connected with the connecting support in the valve body through bolts, and sealing rings are installed in the sealing groove I and the sealing groove II of the valve body; the integrated valve core in the breather valve consists of a valve disc support, a positive pressure valve disc, a plunger, a negative pressure valve disc and an upper cover, wherein a positioning rectangular column is arranged on the valve disc support and matched with a positioning rectangular groove in a valve body, the valve disc support is installed in a cavity and forms circumferential positioning, the positive pressure valve disc is connected with the plunger through a bolt, a hollow cylinder I is arranged on the negative pressure valve disc, the plunger is installed in the hollow cylinder I, the positive pressure valve disc and the negative pressure valve disc are installed in the valve disc support, a hollow cylinder II is arranged on the upper cover, the negative pressure valve disc is installed in the hollow cylinder II, and the upper cover is connected with the valve disc support through a bolt; the axial fixing module in the breather valve consists of a pushing screw, a clamping plate and a pressing plate, wherein the clamping plate is provided with a U-shaped groove and a connecting hole VIII, the pressing plate is provided with a pressing hole, a mounting hole and a connecting hole IX, the pushing screw is mounted in the mounting hole of the pressing plate, the clamping plate is connected with the pressing plate through a bolt, the pushing screw is axially positioned by the U-shaped groove, and the axial fixing module is mounted in a screw hole on a valve cover; laborsaving module by the pull rod shell, according piece, spring expansion block group one-tenth, be provided with mounting groove I and mounting groove II in the pull rod shell, be provided with the protrusion cylinder on the spring expansion block, install in mounting groove II according to the piece, the spring expansion block is installed in mounting groove I, laborsaving module installation at the pull rod inslot.

And the valve disc support is provided with a positioning rectangular column, an air hole, a positive pressure valve disc air hole, a negative pressure valve disc air hole and a connecting hole V, wherein the air hole, the positive pressure valve disc air hole and the negative pressure valve disc air hole are used for air flow in the valve body.

The upper cover is provided with an air vent I, a connecting hole VI, a fan-shaped air vent, a handle and a hollow cylinder II, wherein the air vent I and the fan-shaped air vent ensure the ventilation requirement of the breather valve, and the handle is arranged to facilitate the disassembly and assembly of workers.

The valve cover is provided with a U-shaped connecting plate, a connecting hole VII, a screw rod hole, a pull rod groove, an outer positioning hole and an inner positioning hole, wherein the U-shaped connecting plate is connected with a supporting plate of the valve body through a bolt, the valve cover can rotate around the connecting bolt, the screw rod hole is used for pushing the installation of the screw rod, the pull rod groove is used for being connected with a labor-saving module, when the valve cover is in a working state, the protruding cylinder is connected with the outer positioning hole, and when the valve cover is in an out-of-work state, the protruding cylinder is connected with the inner positioning hole.

The cover plate is provided with a cover plate positioning column and an air vent II, wherein the cover plate positioning column is used for being connected with the cover plate positioning groove, and the air vent II is arranged to facilitate heat dissipation of the heat pipe.

The sealing surfaces of the positive pressure valve disc, the negative pressure valve disc and the valve disc support are made of polytetrafluoroethylene, the polytetrafluoroethylene sealing performance is good, the weight is light, the working condition is met, and meanwhile the integral quality of the integrated valve core is reduced.

(III) advantageous effects

The invention has the beneficial effects that: (1) a breather valve with an integrated valve core capable of being maintained and maintained quickly changes a traditional breather valve into a breather valve with an integrated valve core capable of being disassembled and assembled quickly, so that the integral valve core is convenient to disassemble and assemble integrally, only the integral valve core needs to be disassembled, and heavy equipment does not need to be hoisted, thereby improving the safety coefficient and the integral working efficiency, and reducing the detection cost and the detection time; (2) the cover of the flip type breather valve with the labor-saving pull rod is designed, the valve cover can be opened and closed conveniently, the connection holes do not need to be aligned repeatedly when the valve cover is closed, the valve cover can be mounted by putting down the valve cover, the working process is simplified, and the working efficiency of workers in assembling and disassembling the valve cover is improved; (3) the heat pipe and the drying layer are added into the breather valve, the heat pipe can balance the temperature of two points of the surrounding environment of the oil tank and the valve disc, the drying layer is arranged at the air port and can absorb the moisture in the outside air, the valve disc is prevented from being crystallized and frozen, and the working reliability of the breather valve is improved.

Description of the drawings:

FIG. 1 is a schematic half-section view of an integrated valve core breather valve capable of being maintained and repaired quickly;

FIG. 2 is a schematic view of an integrated valve core breather valve capable of being maintained and repaired quickly;

FIG. 3 is a schematic half-sectional view of a valve body of an integrated valve core breather valve capable of being quickly maintained and repaired;

FIG. 4 is a schematic view of a valve disc support for a rapid service integrated valve cartridge breather valve;

FIG. 5 is a schematic view of a positive pressure valve disc and a plunger of an integrated valve core breather valve capable of being maintained and repaired quickly;

FIG. 6 is a schematic half-section view of a negative pressure valve disc of an integrated valve core breather valve capable of being maintained and repaired quickly;

FIG. 7 is a schematic view of an upper cover of a breather valve with an integrated valve core for quick maintenance;

FIG. 8 is a schematic half-section view of a valve cover of an integrated valve core breather valve capable of being maintained and repaired quickly;

FIG. 9 is a schematic view of an axial positioning module of an integrated valve core breather valve capable of being quickly maintained and repaired;

FIG. 10 is a schematic half-sectional view of a pull rod housing of an integrated valve core breather valve capable of being quickly maintained and repaired;

FIG. 11 is a schematic half-section view of a labor-saving module of an integrated valve core breather valve capable of being maintained and repaired quickly;

FIG. 1, valve body; 101. a heat pipe groove; 102. covering the plate positioning slot; 103. a sealing groove I; 104. a cavity; 105. a sealing groove II; 106. a support plate; 107. a connecting hole I; 108. a connecting hole II; 109. positioning the rectangular groove; 110. connecting a bracket; 111. connecting holes III; 112. a connecting hole IV; 2. a valve disc support; 201. positioning the rectangular column; 202. air holes; 203. a positive pressure valve disc air hole; 204. a negative pressure valve disc air hole; 205. a connecting hole V is formed; 3. a positive pressure valve disc; 4. a plunger; 5. a negative pressure valve disc; 501. a hollow cylinder I; 6. an upper cover; 601. A vent hole I; 602. a connecting hole VI; 603. a fan-shaped vent hole; 604. a grip; 605. a hollow cylinder II; 7. a valve cover; 701. a U-shaped connecting plate; 702. connecting holes VII; 703. a screw hole; 704. a pull rod groove; 705. an outer positioning hole; 706. inner positioning holes; 8. a screw is advanced; 9. a splint; 901. a U-shaped groove; 902. a connecting hole VIII; 10. pressing a plate; 1001. pressing the hole; 1002. mounting holes; 1003. connecting a hole IX; 11. a tie rod housing; 1101. a mounting groove I; 1102. a mounting groove II; 12. according to blocks; 13. a spring expansion block; 1301. a projecting cylinder; 14. a fire barrier plate; 15. a filter layer; 16. drying the layer; 17. rain-proof caps; 18. a cover plate; 1801. Covering plate positioning columns; 1802. a vent hole II; 19. a heat pipe.

The specific implementation mode is as follows:

the invention provides an integrated valve core breather valve capable of being maintained and maintained quickly, which reduces the workload of manual operation, improves the working quality, enhances the working precision and promotes the working efficiency.

In order to make the technical solutions of the present invention better understood, the present invention is further described below with reference to the accompanying drawings, and the scope of the present invention is not limited to the following descriptions:

referring to fig. 1 and 2, fig. 1 is a schematic half-sectional view of a breather valve with an integrated valve core capable of being maintained and repaired quickly according to an embodiment of the invention; fig. 2 is an overall schematic view of the present invention.

As shown in fig. 1 to 11, the integrated valve core breather valve capable of being maintained and repaired quickly comprises a valve body 1, an integrated valve core, a valve cover 7, an axial fixing module, a labor-saving module, a fire retardant plate 14, a filter layer 15, a drying layer 16, a rain-proof cap 17, a cover plate 18 and a heat pipe 19; the valve body 1 is provided with a heat pipe groove 101, a cover plate positioning groove 102, a sealing groove I103, a cavity 104, a sealing groove II 105, a support plate 106, a connecting hole I107, a connecting hole II 108, a positioning rectangular groove 109, a connecting support 110, a connecting hole III 111 and a connecting hole IV 112, the valve cover 7 is provided with a screw hole 703 and a pull rod groove 704, a heat pipe 19 is placed in the heat pipe groove 101 of the valve body, a cover plate 18 is installed in the valve body 1, a fire retardant plate 14, a filter layer 15, a drying layer 16 and a rain-proof cap 17 are connected with the connecting support 110 in the valve body 1 through bolts, and sealing rings are installed in the sealing groove I103 and the sealing groove II 105 of the valve body 1; the integrated valve core in the breather valve consists of a valve disc support 2, a positive pressure valve disc 3, a plunger 4, a negative pressure valve disc 5 and an upper cover 6, wherein a positioning rectangular column 201 is arranged on the valve disc support 2 and is matched with a positioning rectangular groove 109 in a valve body 1, the positioning rectangular groove is installed in a cavity 104 and forms circumferential positioning, the positive pressure valve disc 3 is connected with the plunger 4 through a bolt, a hollow cylinder I501 is arranged on the negative pressure valve disc 5, the plunger 4 is installed in the hollow cylinder I501, the positive pressure valve disc 3 and the negative pressure valve disc 5 are installed in the valve disc support 2, a hollow cylinder II 605 is arranged on the upper cover 6, the negative pressure valve disc 5 is installed in the hollow cylinder II 605, and the upper cover 6 is connected with the valve disc support 2 through a bolt; the axial fixing module in the breather valve consists of a pushing screw 8, a clamping plate 9 and a pressing plate 10, wherein a U-shaped groove 901 and a connecting hole VIII 902 are arranged on the clamping plate 9, a pressing hole 1001, a mounting hole 1002 and a connecting hole IX 1003 are arranged on the pressing plate 10, the pushing screw 8 is mounted in the mounting hole 1002 of the pressing plate 10, the clamping plate 9 is connected with the pressing plate 10 through bolts, the pushing screw 8 is axially positioned by the U-shaped groove 901, and the axial fixing module is mounted in a screw hole 703 on a valve cover 7; laborsaving module by pull rod shell 11, according to piece 12, the flexible piece 13 of spring is constituteed, be provided with I1101 of mounting groove and II 1102 of mounting groove in the pull rod shell 11, be provided with protruding cylinder 1301 on the flexible piece 13 of spring, install in II 1102 of mounting groove according to piece 12, the flexible piece 13 of spring is installed in I1101 of mounting groove, and laborsaving module installs in pull rod groove 704.

The disassembly process of the invention is as follows:

the pusher screw 8 is rotated to release the contact of the presser plate 10 with the lid 6. The bolt for connecting the valve cover 7 and the valve body 1 is taken down, the pressing block 12 is pressed down, the pull rod shell 11 is pulled out to the protruding cylinder on the spring telescopic block 13 and is clamped at the position of the positioning hole 705 at the outer end, the labor-saving module is pushed upwards to open the valve cover 7, and the handle 6 is held to lift the integrated valve core.

Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.

Claims

1. A breather valve with an integrated valve core capable of being maintained and maintained quickly consists of a valve body (1), the integrated valve core, a valve cover (7), an axial fixing module, a labor-saving module, a fire retardant plate (14), a filter layer (15), a drying layer (16), a rain-proof cap (17), a cover plate (18) and a heat pipe (19); the valve body (1) is provided with a heat pipe groove (101), a cover plate positioning groove (102), a sealing groove I (103), a cavity (104), a sealing groove II (105), a supporting plate (106), a connecting hole I (107), a connecting hole II (108), a positioning rectangular groove (109), a connecting support (110), a connecting hole III (111) and a connecting hole IV (112), the valve cover (7) is provided with a screw hole (703) and a pull rod groove (704), a heat pipe (19) is placed in the heat pipe groove (101) of the valve body, the cover plate (18) is installed in the valve body (1), the fire retardant plate (14), the filter layer (15), the drying layer (16) and the rain-proof cap (17) are connected with the connecting support (110) in the valve body (1) through bolts, and sealing rings are installed in the sealing groove I (103) and the sealing groove II (105) of the valve body (1); the integrated valve core in the breather valve is composed of a valve disc support (2), a positive pressure valve disc (3), a plunger (4), a negative pressure valve disc (5) and an upper cover (6), wherein a positioning rectangular column (201) is arranged on the valve disc support (2) and matched with a positioning rectangular groove (109) in a valve body (1), the valve disc support is installed in a cavity (104) to form circumferential positioning, the positive pressure valve disc (3) is connected with the plunger (4) through a bolt, a hollow cylinder I (501) is arranged on the negative pressure valve disc (5), the plunger (4) is installed in the hollow cylinder I (501), the positive pressure valve disc (3) and the negative pressure valve disc (5) are installed in the valve disc support (2), a hollow cylinder II (605) is arranged on the upper cover (6), the negative pressure valve disc (5) is installed in the hollow cylinder II (605), and the upper cover (6) is connected with the valve disc support (2) through a bolt; the axial fixing module in the breather valve consists of a pushing screw (8), a clamping plate (9) and a pressing plate (10), wherein a U-shaped groove (901) and a connecting hole VIII (902) are arranged on the clamping plate (9), a pressing hole (1001), a mounting hole (1002) and a connecting hole IX (1003) are arranged on the pressing plate (10), the pushing screw (8) is mounted in the mounting hole (1002) of the pressing plate (10), the clamping plate (9) is connected with the pressing plate (10) through bolts, the pushing screw (8) is axially positioned by the U-shaped groove (901), and the axial fixing module is mounted in a screw hole (703) in a valve cover (7); laborsaving module comprises pull rod shell (11), according piece (12), the flexible piece of spring (13), be provided with mounting groove I (1101) and mounting groove II (1102) in pull rod shell (11), be provided with protruding cylinder (1301) on the flexible piece of spring (13), install in mounting groove II (1102) according to piece (12), install in mounting groove I (1101) the flexible piece of spring (13), and laborsaving module installs in pull rod groove (704).

2. The integrated valve core breather valve capable of being maintained and repaired quickly according to claim 1, wherein: the valve disc support (2) is provided with a positioning rectangular column (201), an air hole (202), a positive pressure valve disc air hole (203), a negative pressure valve disc air hole (204) and a connecting hole V (205), wherein the air hole (202), the positive pressure valve disc air hole (203) and the negative pressure valve disc air hole (204) are used for air flowing in the valve body (1).

3. The integrated valve core breather valve capable of being maintained and repaired quickly according to claim 1, wherein: the upper cover (6) is provided with a vent hole I (601), a connecting hole VI (602), a fan-shaped vent hole (603), a handle (604) and a hollow cylinder II (605), wherein the vent hole I (601) and the fan-shaped vent hole (603) ensure the ventilation requirement of the breather valve, and the handle (604) is arranged to facilitate the disassembly and assembly of workers.

4. The integrated valve core breather valve capable of being maintained and repaired quickly according to claim 1, wherein: the valve cover (7) is provided with a U-shaped connecting plate (701), a connecting hole VII (702), a screw rod hole (703), a pull rod groove (704), an outer positioning hole (705) and an inner positioning hole (706), wherein the U-shaped connecting plate (701) is connected with a supporting plate (106) of the valve body (1) through a bolt, the valve cover can rotate around the connecting bolt, the screw rod hole (703) is used for pushing the installation of a screw rod (8), the pull rod groove (704) is used for being connected with a labor-saving module, when the valve cover is in an operating state, the protruding cylinder (1301) is connected with the outer positioning hole (705), and when the valve cover is in an inoperative state, the protruding cylinder (1301) is connected with the inner positioning hole (706).

5. The integrated valve core breather valve capable of being maintained and repaired quickly according to claim 1, wherein: be provided with overlay reference column (1801), air vent II (1802) on overlay (18), wherein overlay reference column (1801) are used for being connected with overlay constant head tank (102), set up air vent II (1802) and be convenient for heat pipe (19) heat dissipation.