Gas blockage prevention and gas leakage prevention device

Abstract

The utility model provides an anti-gas-blockage and anti-gas-leakage device, and relates to the technical field of drainers. The gas blockage prevention and gas leakage prevention device comprises a pipeline cavity, a flange plate A is welded to the top of the pipeline cavity, and the surface of the flange plate A is in threaded connection with a flange plate B. Considering the problem of the drainer, the air escape valve is mounted at the top of the pipeline cavity, and the air escape valve can perform pressure relief treatment on air in the cavity when the air pressure in the pipeline cavity is relatively high, so that the pressure in the pipeline cavity can be maintained to a proper numerical value, and a water source can normally enter the drainage pipe above from the bottom; and meanwhile, the air escape valve is connected through threads and is convenient to disassemble, the sealing performance of connection of the air escape valve can be effectively improved through cooperation with a sealing ring with the surface connected in a sleeving mode and a supporting spring in the sealing ring, the internal space can be effectively isolated in the non-working state while pressure relief is achieved, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of water drainers, in particular to a gas blocking and leakage preventing device for coal gas. BACKGROUND

[0002] In modern family and industrial environments, coal gas as a widely used energy source, its safety can not be ignored. Especially in the drainage system, due to the negative pressure effect or other reasons, the backflow phenomenon may cause the coal gas to flow backward into the room, thereby causing serious safety hazards. Therefore, it is particularly important to develop a gas blocking and leakage preventing device for coal gas for the use of water drainers.

[0003] The existing coal gas leakage preventing device is prone to cause the internal gas pressure of the pipeline to block the drain, thereby causing the condition that the drain cannot be normally drained, and causing temporary blockage of the drain. Therefore, a gas blocking and leakage preventing device for coal gas is provided. CONTENT OF THE UTILITY MODEL

[0004] The application provides a gas blocking and leakage preventing device for coal gas to solve the problem that the internal gas pressure of the pipeline blocks the drain, thereby causing the condition that the drain cannot be normally drained, and causing temporary blockage of the drain.

[0005] The application provides a gas blocking and leakage preventing device for coal gas, which comprises a pipeline cavity, a flange plate A is welded at the top of the pipeline cavity, a flange plate B is threadedly connected to the surface of the flange plate A, a threaded hole is formed in the surface of the flange plate B, a gas leakage mechanism is threadedly connected in the threaded hole, the gas leakage mechanism comprises a gas leakage valve threadedly connected in the threaded hole, a sealing ring is sleeved at the bottom of the gas leakage valve, and a supporting spring is mounted in the sealing ring.

[0006] Preferably, a placing groove is formed in the inside of the threaded hole, and the sealing ring is mounted in the inside of the placing groove, so that the sealing ring is convenient to seal.

[0007] Preferably, a placing hole is formed in the surface of the pipeline cavity, and a warning mechanism is mounted in the inside of the placing hole, so that the warning mechanism is convenient to timely remind the user.

[0008] Preferably, the warning mechanism comprises an alarm lamp mounted in the inside of the placing hole, a PLC controller is electrically connected to one side of the alarm lamp through a power line, and the surface of the PLC controller is electrically connected to a pressure gauge through a power line, so that the pressure gauge is convenient to detect the pressure in the inside of the pipeline cavity.

[0009] Preferably, a water inlet is formed in the bottom of the pipeline cavity, and a drain pipe is throughly connected to the upper surface of the pipeline cavity, so that the drain pipe is convenient to discharge water.

[0010] Preferably, one side of the drain pipe is fixedly connected with a flange connector, and an O-shaped sealing gasket is arranged in the flange connector, so that the flange connector is convenient to connect the drain pipe.

[0011] Preferably, a plurality of threaded holes are formed in surfaces of the flange A and the flange B, and threaded columns are threadedly connected in the threaded holes, so that the flange A and the flange B are fixed.

[0012] Beneficial effects:

[0013] Considering the problem of the drain, the air release valve is arranged on the top of the pipeline cavity, so that the air release valve can release pressure of the gas in the pipeline cavity when the pressure is high, and the pressure in the pipeline cavity can be maintained at a proper value, so that the water source can normally enter the upper drain pipe from the bottom, and the air release valve is connected through threads, is convenient to disassemble, cooperates with the sealing ring and the supporting spring in the sealing ring, and can effectively improve the sealing performance of the air release valve connection, realizes pressure release, effectively isolates the internal space in a non-working state, and improves the practicability of the device.

[0014] The above description is only a summary of the technical scheme of the embodiments of the present application, in order to more clearly understand the technical means of the embodiments of the present application, and can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the embodiments of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0016] Figure 1 It is a whole structure schematic view of the anti-air-blocked coal gas anti-leakage device.

[0017] Figure 2 It is a structure schematic view of the air release valve of the anti-air-blocked coal gas anti-leakage device.

[0018] Figure 3 It is a structure schematic view of the early warning mechanism of the anti-air-blocked coal gas anti-leakage device.

[0019] Figure 4 It is a structure schematic view of the air release mechanism of the anti-air-blocked coal gas anti-leakage device.

[0020] Explanation of reference signs:

[0021] 1, pipe cavity; 2, flange plate A; 3, flange plate B; 4, deflation mechanism; 401, deflation valve; 402, sealing ring; 403, supporting spring; 5, early warning mechanism; 501, alarm lamp; 502, PLC controller; 503, pressure gauge; 6, water inlet; 7, drain pipe; 8, flange connector; 9, O-shaped sealing gasket; 10, threaded column. DETAILED DESCRIPTION

[0022] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of the present application.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the specification of the application is only for the purpose of describing specific embodiments and is not intended to limit the application; the terms "comprise" and "have" and any variations thereof in the specification and claims of the application and the description of the drawings are intended to cover non-exclusive inclusion.

[0024] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase "in an embodiment" in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0025] The orientation words appearing in the following description are the directions shown in the drawings, and are not limited to the specific structure of the application. For example, in the description of the application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, the "connection" or "connecting" of mechanical structures can mean physical connection, for example, the physical connection can be fixed connection, for example, fixed connection by screws, bolts or other fixing members; the physical connection can also be detachable connection, for example, mutual clamping or clamping connection; the physical connection can also be integrally connected, for example, welding, bonding or integrally formed connection. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings.

[0028] The utility model provides a kind of Figures 1-4 As shown in a kind of gas blocking prevention gas leakage device, including pipeline cavity 1, the top of pipeline cavity 1 is welded with flange plate A 2, flange plate A 2 Surface is threadedly connected with flange plate B 3, the surface of flange plate B 3 Is provided with threaded hole, the inside of threaded hole is threadedly connected with air release mechanism 4, air release mechanism 4 Including the air release valve 401 that is threadedly connected in the inside of threaded hole, the bottom of air release valve 401 is sleeved with sealing ring 402, sealing ring 402 Inside is installed with support spring 403.

[0029] Among them, the inside of threaded hole is provided with placing groove, sealing ring 402 It is installed in the inside of placing groove.

[0030] Through the setting of sealing ring 402, sealing effect is played to the connecting place of air release valve 401.

[0031] Among them, the surface of pipeline cavity 1 is provided with placing hole, placing hole is installed with early warning mechanism 5 Inside.

[0032] Through the setting of early warning mechanism 5, the effect of timely reminding user to check is played.

[0033] Among them, early warning mechanism 5 Including the alarm lamp 501 that is installed in the inside of placing hole, the side of alarm lamp 501 It is electrically connected with PLC controller 502 through power line, the surface of PLC controller 502 It is electrically connected to pressure gauge 503 through power line.

[0034] Through the setting of pressure gauge 503, the effect of detecting the pressure inside pipeline cavity 1 is played.

[0035] Among them, the bottom of pipeline cavity 1 is provided with water inlet 6, the upper surface of pipeline cavity 1 It is connected with drain pipe 7 through.

[0036] Through the setting of the drain pipe 7, the effect of conveying the water source is achieved.

[0037] Among them, one side of the drain pipe 7 is fixedly connected with the flange connecting piece 8, and the inside of the flange connecting piece 8 is installed with the O-shaped sealing pad 9.

[0038] Through the setting of the flange connecting piece 8, the effect of connecting the drain pipe 7 is achieved.

[0039] Among them, the surface of the flange plate A2 and the flange plate B3 is provided with a plurality of threaded holes, and the inside of the threaded hole is screw connected with the threaded column 10.

[0040] Through the setting of the threaded column 10, the effect of connecting the flange plate A2 and the flange plate B3 is achieved.

[0041] Working principle: when the air-proof anti-leakage device for coal gas is used, the sealing ring 402 with the supporting spring 403 installed inside is installed in the inside of the threaded hole, then the threaded hole on the surface of the air release valve 401 is screw connected in the threaded hole on the surface of the flange plate B3, and the installation of the air release valve 401 is completed, and the air release valve 401 can be quickly disassembled by reverse screwing.

[0042] The above-described and the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A gas blocking and leakage preventing device for coal gas, comprising a pipeline cavity (1), characterized in that: The top of the pipeline cavity (1) is welded with a flange plate A (2), the surface of the flange plate A (2) is threadedly connected with a flange plate B (3), the surface of the flange plate B (3) is provided with threaded holes, the inside of the threaded holes is threadedly connected with a deflation mechanism (4), The deflation mechanism (4) comprises a deflation valve (401) threadedly connected with the inside of the threaded hole, the bottom of the deflation valve (401) is sleeved with a sealing ring (402), the inside of the sealing ring (402) is mounted with a supporting spring (403).

2. The anti-airlock gas leakage prevention device according to claim 1, characterized in that: The inside of the threaded hole is provided with a placing groove, and the sealing ring (402) is mounted in the inside of the placing groove.

3. The anti-airlock gas leakage prevention device according to claim 1, characterized in that: The surface of the pipeline cavity (1) is provided with a placing hole, and the inside of the placing hole is mounted with a early warning mechanism (5).

4. The gas blockage preventing and gas leakage preventing device according to claim 3, characterized in that: The early warning mechanism (5) comprises an alarm lamp (501) mounted in the inside of the placing hole, one side of the alarm lamp (501) is electrically connected with a PLC controller (502) through a power line, and the surface of the PLC controller (502) is electrically connected with a pressure gauge (503) through a power line.

5. The gas blockage preventing and gas leakage preventing device according to claim 1, characterized in that: The bottom of the pipeline cavity (1) is provided with a water inlet (6), and the upper surface of the pipeline cavity (1) is throughly connected with a drain pipe (7).

6. The gas blockage preventing and gas leakage preventing device according to claim 5, characterized in that: One side of the drain pipe (7) is fixedly connected with a flange connecting piece (8), and the inside of the flange connecting piece (8) is mounted with an O-shaped sealing gasket (9).

7. The gas blockage preventing and gas leakage preventing device according to claim 1, characterized in that: The surface of the flange plate A (2) and the flange plate B (3) is provided with a plurality of threaded holes, and the inside of the threaded holes is threadedly connected with a threaded column (10).

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