Novel breathing integrated emergency release valve

Abstract

The utility model relates to the technical field of release valves, and discloses a novel breathing integrated emergency release valve which comprises a valve body assembly, an exhalation valve seat is connected to the center of the valve body assembly, and a plurality of guide rods are evenly connected to the outer side of the exhalation valve seat; the exhalation valve disc assembly is arranged at the top end of the exhalation valve seat, and the exhalation valve disc assembly is in sliding connection with the guide rod; the inspiration valve disc assembly is arranged in the expiration valve disc assembly in a sliding mode, and the inspiration sealing film is arranged below the sealing face of the inspiration valve disc assembly; the valve cover assembly is arranged at the top end of the exhalation valve disc assembly. The inspiration sealing film is arranged below the sealing face of the inspiration valve disc, the problem that sealing is affected by dust accumulation and medium condensation of the sealing film of the inspiration valve disc is solved, the exhalation valve disc assembly and the inspiration valve disc assembly are guided through the guiding devices, and opening and falling are more stable; and by adopting a counterweight form, the sealing performance is more stable, the structure is simple, and the assembly is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of relief valves, in particular to a novel breathing integrated emergency relief valve. Background Art

[0002] The breathing integrated emergency relief valve is a rapid pressure relief device, and its technical performance and main component materials are the same as those of the breathing manhole. The breathing integrated emergency relief valve is a safety emergency ventilation device installed on petrochemical storage tanks. It consists of a valve body assembly, an inhalation / exhalation valve disc assembly, a valve cover assembly, a seal, fasteners, etc.

[0003] Most of the breathing integrated emergency relief valve structures on the market today have a sealing film on the suction valve disc above the sealing surface of the suction valve disc. For example, the utility model patent with application number CN202320095012.1 discloses a fire-blocking breathing integrated emergency relief valve. When the tank is in a vacuum state, the suction valve disc opens to inhale air to maintain the tank pressure stable. At this time, the medium in the tank is easy to condense on the sealing film of the suction valve disc, which not only affects the opening, but also affects the sealing; and the performance of the spring seal is unstable.

[0004] Another example is the utility model patent with application number CN202222200897.5, which sets a sealing membrane below the sealing surface of the suction valve disc to reduce the condensation of the medium on the sealing membrane. However, this device is difficult to assemble and inconvenient to maintain by dividing the suction valve disc into multiple small suction valve discs.

[0005] In summary, the disadvantages of the existing integrated breathing emergency relief valve are: (1) the sealing film is easily affected by the accumulation of condensed media; (2) the sealing effect of the sealing film above the sealing surface of the suction valve disc is poor; (3) the assembly is difficult; (4) the spring sealing performance is unstable.

[0006] Therefore, it is necessary to propose a novel breathing integrated emergency relief valve to at least partially solve the problems existing in the prior art. Utility Model Content

[0007] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0008] In order to solve the above problems, the utility model discloses a novel breathing integrated emergency relief valve; which comprises:

[0009] A valve body assembly, wherein an exhalation valve seat is connected to the center of the valve body assembly, and a plurality of guide rods are evenly connected to the outer side of the exhalation valve seat;

[0010] An exhalation valve disc assembly, the exhalation valve disc assembly is arranged at the top of the exhalation valve seat, and the exhalation valve disc assembly is slidably connected to the guide rod;

[0011] An inhalation valve disc assembly, wherein the inhalation valve disc assembly is slidably disposed in the exhalation valve disc assembly, and an inhalation sealing membrane is disposed below a sealing surface of the inhalation valve disc assembly;

[0012] The valve cover assembly is arranged on the top of the exhalation valve disc assembly.

[0013] Preferably, an exhalation weight block is connected to the top end of the valve cover assembly.

[0014] Preferably, the exhalation valve disc assembly includes: an exhalation valve disc body, an exhalation seal and an exhalation recoil edge, the exhalation recoil edge is connected to the bottom end of the exhalation valve disc body by a fastener, the exhalation seal is connected between the exhalation valve disc body and the exhalation recoil edge, and the exhalation valve disc body is arranged at the top end of the exhalation valve seat.

[0015] Preferably, the exhalation valve disc body includes: an exhalation valve disc, an inhalation pipe, a side plate, a shell, a middle flange and an inhalation valve seat. The exhalation valve disc, the inhalation pipe and the side plate are arranged in sequence from bottom to top. The middle opening of the exhalation valve disc is welded to the inhalation pipe and the side plate, the shell is welded to the top end of the side plate, the middle flange is welded to the top end of the shell, and the middle flange is connected to the valve cover assembly; the top opening of the inhalation pipe is welded to the inhalation valve seat.

[0016] Preferably, an exhalation guide device is welded to the outer circle of the exhalation valve disc, and the guide rod is slidably connected in the exhalation guide device; an inhalation guide device is welded in the inhalation pipe, and the inhalation guide device is connected to the inhalation valve disc assembly.

[0017] Preferably, protective nets are welded on both sides of the air intake pipe.

[0018] Preferably, the cross-section of the air intake pipe is set to be any one of a circle and a square, and the cross-section of the shell is set to be any one of a circle and a square.

[0019] Preferably, the intake valve disc assembly includes: an intake valve disc, an intake sealing membrane, an intake support pad, a clamping plate, an intake valve stem, a nut, a reinforcing pad and an intake counterweight; the intake valve disc assembly is arranged at the top of the intake valve seat, the intake sealing membrane, the intake support pad and the clamping plate are sequentially connected to the bottom end of the intake valve disc, the intake valve stem passes through the center of the intake valve disc, the intake valve stem is connected with a nut and a reinforcing pad, the nut is crimped to the top of the intake valve disc, the reinforcing pad is crimped to the bottom end of the clamping plate, and the intake valve stem is slidably connected to the intake guide device.

[0020] Preferably, a suction counterweight is connected to the top of the suction valve disc, and the suction valve stem passes through the suction counterweight and is connected to a nut.

[0021] Preferably, a recoil edge is provided at the bottom end of the suction valve disc.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] The utility model provides a novel breathing integrated emergency relief valve, which improves the structure of the suction valve disc and arranges the suction sealing film below the sealing surface of the suction valve disc, so that the medium is not easy to condense on the suction sealing film, thereby solving the problem that the sealing film of the suction valve disc is easy to accumulate dust and the condensation of the medium affects the sealing;

[0024] Both the exhalation valve disc assembly and the inhalation valve disc assembly are guided by guide devices, making the opening and falling back more stable;

[0025] An air suction counterweight is provided on the air suction valve disc assembly. The use of a counterweight makes the sealing performance more stable, the structure simpler and the assembly more convenient.

[0026] The utility model describes a novel breathing integrated emergency relief valve. Other advantages, objectives and features of the utility model will be partially reflected through the following description, and will also be partially understood by technicians in this field through research and practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the structure of the utility model;

[0029] Figure 2 (a) is a diagram of the exhalation working principle of the utility model (a cross-section along the axial direction of the inhalation pipe);

[0030] Figure 2 (b) is a diagram of the exhalation working principle of the utility model (a radial section view along the inhalation pipe);

[0031] Figure 3 (a) is a diagram of the suction working principle of the utility model (a cross-section along the axial direction of the suction pipe);

[0032] Figure 3 (b) is a diagram of the suction working principle of the utility model (a radial section view along the suction pipe);

[0033] Figure 4 It is a top view of the exhalation valve disc assembly in the utility model;

[0034] Figure 5It is a schematic diagram of the cross-sectional structure of the exhalation valve disc assembly of the utility model along the axial direction of the inhalation pipe;

[0035] Figure 6 It is a schematic diagram of the cross-sectional structure of the exhalation valve disc assembly in the utility model along the radial direction of the inhalation pipe;

[0036] Figure 7 It is a schematic diagram of the cross-sectional structure of the air intake valve disc assembly in the utility model along the vertical direction.

[0037] In the figure: 1. valve body assembly; 2. guide rod; 3. exhalation valve disc assembly; 4. inhalation valve disc assembly; 5. valve cover assembly; 6. exhalation valve seat; 7. exhalation counterweight; 301. fastener; 302. exhalation valve disc; 303. inhalation pipe; 304. shell; 305. inhalation valve seat; 306. protective net; 307. middle flange; 308. side plate; 309. exhalation seal; 310. exhalation recoil edge; 311. inhalation guide device; 312. exhalation guide device; 401. inhalation valve disc; 402. inhalation sealing membrane; 403. inhalation support pad; 404. pressing plate; 405. inhalation valve stem; 406. nut; 407. reinforcement pad; 408. inhalation counterweight. DETAILED DESCRIPTION

[0038] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Example

[0040] The utility model will be further described below in conjunction with the accompanying drawings.

[0041] This embodiment provides a novel breathing integrated emergency relief valve, comprising:

[0042] A valve body assembly 1, wherein an exhalation valve seat 6 is connected to the center of the valve body assembly 1, and a plurality of guide rods 2 are evenly connected to the outer side of the exhalation valve seat 6;

[0043] The exhalation valve disc assembly 3 is arranged at the top of the exhalation valve seat 6, and the exhalation valve disc assembly 3 is slidably connected to the guide rod 2;

[0044] The inhalation valve disc assembly 4 is slidably disposed in the exhalation valve disc assembly 3, and the inhalation sealing membrane 402 is disposed below the sealing surface of the inhalation valve disc assembly 4;

[0045] The valve cover assembly 5 is arranged at the top end of the exhalation valve disc assembly 3 .

[0046] The working principle of the utility model is:

[0047] This embodiment provides a novel breathing integrated emergency relief valve, which is connected to a storage tank through a valve body assembly 1. Figure 2 (a) Figure 2 As shown in (b), when the pressure in the storage tank rises, the exhalation valve disc assembly 3 of the breathing integrated emergency relief valve will open. At this time, the exhalation valve disc assembly 3 moves upward along the guide rod 2, and the exhalation valve disc assembly 3 leaves the exhalation valve seat 6, releasing the excess pressure to balance the pressure inside the storage tank; Figure 3 (a) Figure 3 As shown in (b), when the pressure in the storage tank drops, the suction valve disc assembly 4 moves upward, and the suction valve disc assembly 4 is separated from the suction valve seat 305 of the exhalation valve disc assembly 3, and the pressure inside the storage tank is balanced by inhaling air.

[0048] The beneficial effects of the utility model are:

[0049] The present embodiment provides a novel integrated breathing emergency relief valve, which can automatically inhale and exhale as the pressure in the storage tank changes. When the pressure in the storage tank rises, the excess pressure is released to balance the pressure inside the storage tank. When the pressure in the storage tank drops, the pressure inside the storage tank is balanced by inhaling air to maintain the pressure inside the storage tank stable. The intake sealing membrane 402 in the intake valve disc assembly 4 is arranged below the sealing surface of the intake valve disc assembly 4, so that dust and medium are not easily condensed on the intake sealing membrane 402, thereby solving the problem that the intake valve disc sealing membrane is easily accumulated with dust and the medium condenses and affects the sealing.

[0050] In one embodiment, an exhalation counterweight 7 is connected to the top of the valve cover assembly 5. The counterweight is used to improve the sealing effect between the exhalation valve disc assembly 3 and the exhalation valve seat 6, and the exhalation counterweight 7 is easy to assemble.

[0051] In one embodiment, the exhalation valve disc assembly 3 includes: an exhalation valve disc body, an exhalation seal 309 and an exhalation recoil edge 310, the exhalation recoil edge 310 is connected to the bottom end of the exhalation valve disc body through a fastener 301, the exhalation seal 309 is connected between the exhalation valve disc body and the exhalation recoil edge 310, and the exhalation valve disc body is arranged at the top of the exhalation valve seat 6.

[0052] The exhalation valve disc body includes: an exhalation valve disc 302, an inhalation pipe 303, a side plate 308, a shell 304, a middle flange 307 and an inhalation valve seat 305. The exhalation valve disc 302, the inhalation pipe 303 and the side plate 308 are arranged in sequence from bottom to top. The middle opening of the exhalation valve disc 302 is welded to the inhalation pipe 303 and the side plate 308. The shell 304 is welded to the top of the inhalation pipe 303, the middle flange 307 is welded to the top of the shell 304, and the middle flange 307 is connected to the valve cover assembly 5; the top opening of the inhalation pipe 303 is welded to the inhalation valve seat 305.

[0053] An exhalation guide device 312 is welded to the outer circle of the exhalation valve disc 302, and the guide rod 2 is slidably connected in the exhalation guide device 312; an inhalation guide device 311 is welded in the inhalation pipe 303, and the inhalation guide device 311 is connected to the inhalation valve disc assembly 4.

[0054] The working principle of the exhalation valve disc assembly 3 is:

[0055] When the pressure in the storage tank is within a preset pressure range, the exhalation valve disc assembly 3 is arranged at the top of the exhalation valve seat 6, and the connection is sealed by the exhalation seal 309 to prevent the gas from flowing out; when the pressure in the storage tank rises and exceeds the preset value, the exhalation valve disc assembly 3 is lifted up by the gas pressure, and the exhalation valve disc assembly 3 slides upward along the guide rod 2 and leaves the exhalation valve seat 6, and the gas flows out through the gap between the exhalation valve disc assembly 3 and the exhalation valve seat 6, releasing the excess pressure to balance the pressure inside the storage tank; when the pressure inside the storage tank drops to within the preset range, the exhalation valve disc assembly 3 falls back under the action of its own gravity and re-seals the exhalation valve seat 6.

[0056] The beneficial effects of the exhalation valve disc assembly 3 are:

[0057] When the pressure in the storage tank rises, the excess pressure is released by opening the exhalation valve disc assembly 3, so that the pressure inside the storage tank is balanced and the pressure in the storage tank is maintained stable; the exhalation guide device 312 is used to guide the guide rod 2, so that the opening and falling back of the exhalation valve disc assembly 3 is more stable; a counterweight is used to improve the sealing effect of the exhalation valve disc assembly 3 and the exhalation valve seat 6.

[0058] In one embodiment, protective nets 306 are welded on both sides of the air intake pipe 303 to filter and protect the ends of the air intake pipe 302 to prevent dust and impurities from entering the storage tank through the air intake pipe 303 .

[0059] In one embodiment, the cross-section of the air intake pipe 303 is set to be any one of a circle and a square, and the cross-section of the shell 304 is set to be any one of a circle and a square.

[0060] like Figure 7As shown, in one embodiment, the intake valve disc assembly 4 includes: an intake valve disc 401, an intake sealing membrane 402, an intake support pad 403, a clamping plate 404, an intake valve stem 405, a nut 406, a reinforcement pad 407 and an intake counterweight 408; the intake valve disc 401 is arranged at the top of the intake valve seat 305, the intake sealing membrane 402, the intake support pad 403 and the clamping plate 404 are connected to the bottom of the intake valve disc 401 in sequence, the intake valve stem 405 passes through the center of the intake valve disc 401, the intake valve stem 405 is connected with a nut 406 and a reinforcement pad 407, the nut 406 is crimped to the top of the intake valve disc 401, the reinforcement pad 407 is crimped to the bottom of the clamping plate 404, and the intake valve stem 405 is slidably connected to the intake guide device 311.

[0061] A recoil edge is provided at the bottom end of the suction valve disc 401 .

[0062] In one embodiment, a suction weight block 408 is connected to the top of the suction valve disc 401 , and the suction valve stem 405 passes through the suction weight block 408 and is connected to the nut 406 .

[0063] The working principle of the suction valve disc assembly 4 is:

[0064] When the pressure in the storage tank is within a preset pressure range, the suction valve disc 401 is arranged at the top of the suction valve seat 305, and the connection is sealed by the suction sealing membrane 402 to prevent gas from entering; when the pressure in the storage tank drops and is lower than the preset value, the suction valve disc 401 is lifted up under the action of negative pressure, and the suction valve stem 405 of the suction valve disc 401 slides upward along the suction guide device 311 and leaves the suction valve seat 305, and the gas is sucked in through the suction pipe 303, and enters the exhalation valve disc assembly 3 through the gap between the suction valve disc 401 and the suction valve seat 305, and then flows into the storage tank through the exhalation valve disc 302, and the internal pressure of the storage tank is balanced by inhaling air, thereby maintaining the pressure in the storage tank stable; when the internal pressure of the storage tank rises to within the preset range, the suction valve disc assembly 4 falls back under the action of its own gravity and reseals the suction valve seat 305.

[0065] The beneficial effects of the suction valve disc assembly 4 are:

[0066] When the pressure in the storage tank drops, the air is inhaled by opening the suction valve disc assembly 4 to balance the internal pressure of the storage tank and maintain the pressure in the storage tank stable. The suction guide device 311 is used to guide the suction valve stem 405 to make the opening and falling of the suction valve disc assembly 4 more stable. A counterweight is used to improve the sealing effect of the suction valve disc assembly 4 and the suction valve seat 305.

[0067] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0068] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A new type of integrated breathing emergency relief valve, characterized in that: include: A valve body assembly (1), wherein the center of the valve body assembly (1) is connected to an exhalation valve seat (6), and the outer side of the exhalation valve seat (6) is evenly connected to a plurality of guide rods (2); An exhalation valve disc assembly (3), the exhalation valve disc assembly (3) is arranged at the top end of the exhalation valve seat (6), and the exhalation valve disc assembly (3) is slidably connected to the guide rod (2); An inhalation valve disc assembly (4), the inhalation valve disc assembly (4) is slidably disposed in the exhalation valve disc assembly (3), and an inhalation sealing membrane (402) is disposed below a sealing surface of the inhalation valve disc assembly (4); A valve cover assembly (5) is arranged on the top of the exhalation valve disc assembly (3).

2. A novel breathing integrated emergency relief valve according to claim 1, characterized in that: The top end of the valve cover assembly (5) is connected to an exhalation counterweight (7).

3. A novel breathing integrated emergency relief valve according to claim 1, characterized in that: The exhalation valve disc assembly (3) comprises: an exhalation valve disc body, an exhalation seal (309) and an exhalation recoil edge (310); the exhalation recoil edge (310) is connected to the bottom end of the exhalation valve disc body via a fastener (301); the exhalation seal (309) is connected between the exhalation valve disc body and the exhalation recoil edge (310); and the exhalation valve disc body is arranged at the top end of the exhalation valve seat (6).

4. A novel breathing integrated emergency relief valve according to claim 3, characterized in that: The exhalation valve disc body comprises: an exhalation valve disc (302), an inhalation pipe (303), a side plate (308), a shell (304), a middle flange (307) and an inhalation valve seat (305). The exhalation valve disc (302), the inhalation pipe (303) and the side plate (308) are arranged in sequence from bottom to top. The middle opening of the exhalation valve disc (302) is welded to the inhalation pipe (303) and the side plate (308). The shell (304) is welded to the top end of the inhalation pipe (303). The middle flange (307) is welded to the top end of the shell (304). The middle flange (307) is connected to the valve cover assembly (5). The top opening of the inhalation pipe (303) is welded to the inhalation valve seat (305).

5. A novel breathing integrated emergency relief valve according to claim 4, characterized in that: An exhalation guide device (312) is welded to the outer circle of the exhalation valve disc (302), and the guide rod (2) is slidably connected inside the exhalation guide device (312); an inhalation guide device (311) is welded inside the inhalation pipe (303), and the inhalation guide device (311) is connected to the inhalation valve disc assembly (4).

6. A novel breathing integrated emergency relief valve according to claim 4, characterized in that: Protective nets (306) are welded to both sides of the air intake pipe (303).

7. A novel breathing integrated emergency relief valve according to claim 4, characterized in that: The cross section of the air intake pipe (303) is set to be any one of a circle and a square, and the cross section of the shell (304) is set to be any one of a circle and a square.

8. The novel breathing integrated emergency relief valve according to claim 3 is characterized in that: The air intake valve disc assembly (4) comprises: an air intake valve disc (401), an air intake sealing membrane (402), an air intake support pad (403), a pressing plate (404), an air intake valve stem (405), a nut (406), a reinforcing pad (407) and an air intake counterweight (408); the air intake valve disc assembly (44) is arranged at the top of the air intake valve seat (305), the air intake sealing membrane (402), the air intake support pad (403) and the pressing plate (404) 4) are sequentially connected to the bottom end of the suction valve disc (401), the suction valve stem (405) passes through the center of the suction valve disc (401), the suction valve stem (405) is connected with a nut (406) and a reinforcing pad (407), the nut (406) is crimped to the top end of the suction valve disc (401), the reinforcing pad (407) is crimped to the bottom end of the clamping plate (404), and the suction valve stem (405) is slidably connected to the suction guide device (311).

9. A novel breathing integrated emergency relief valve according to claim 8, characterized in that: The top end of the air intake valve disc (401) is connected with an air intake counterweight block (408), and the air intake valve stem (405) passes through the air intake counterweight block (408) and is connected with a nut (406).

10. A novel breathing integrated emergency relief valve according to claim 8, characterized in that: The bottom end of the suction valve disc (401) is provided with a recoil edge.

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