Hanging film capping and sealing device of accident sewage pool with heating snow melting facility

Abstract

The utility model belongs to the technical field of environmental protection, and relates to a suspension membrane capping sealing device of an accident sewage pool with a heating snow melting facility, which comprises an accident sewage pool body (1), a suspension cable (3) is arranged above a liquid level line (2) of the accident sewage pool body (1), a covering sealing material (4) is arranged on the suspension cable (3), and the periphery of the covering sealing material (4) is fixed on the accident sewage pool body (1). A perforated steam pipe (12) is arranged between the liquid level line (2) and the suspension cable (3), a plurality of perforations are uniformly formed in the perforated steam pipe (12), the perforations face downwards and the center of the accident sewage pool, and the perforated steam pipe (12) is connected with a steam source through a self-operated steam regulating valve (13) and a steam stop valve (14); and the space temperature under the covering sealing material (4) is uniformly distributed by utilizing the spraying speed of the steam and the temperature difference flow of the gas in the accident sewage pool. Through the snow melting design and the drainage design, the manufacturing cost is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmental protection, and relates to a suspension membrane covering and sealing device for an accident sewage pool, in particular to a suspension membrane covering and sealing device for an accident sewage pool with a heating snow melting facility. Background Art

[0002] Most of the existing accident sewage pools in chemical enterprises are open structures. Due to their large span, sewage is not often stored and they are generally not covered, resulting in the emission of odorous gases and VOCs when storing accident sewage, causing the deterioration of the working environment and the surrounding environment.

[0003] Therefore, it is necessary to cover and seal the accident sewage pool. There are two main ways to cover and seal the existing pool: 1. Use fiberglass or other corrosion-resistant materials to make a frame, and then install corrosion-resistant covering materials on the frame; 2. Use carbon steel to make a supporting frame, and then install fluorocarbon membrane materials in an inverted hanging manner. However, for accident sewage pools with a span of tens of meters, the above covering methods are relatively bulky, expensive, and difficult to construct.

[0004] Therefore, a covering method with light weight, convenient construction and low cost is needed. For example, Chinese utility model patent CN202415199U discloses a cable-suspended covering device for a sewage pool, which is provided with an air outlet and a drain outlet. When it rains at a high temperature, rainwater on the membrane surface can be discharged through the drain outlet. When it snows at a low temperature in winter, there is a large amount of water stored in the pool and the temperature under the membrane is high. The snow falling on the sealing membrane material can be melted into snow water and discharged through the drain outlet. However, for an accident sewage pool, when there is no large amount of water stored in the pool in winter, the temperature under the membrane surface is low, and the falling snow cannot absorb the heat under the membrane surface and melt. The resulting snow accumulation will cause damage to the membrane surface. For this reason, it is necessary to solve the problem of temperature rise and snow melting under the sealing membrane in winter. In this way, when designing, it is necessary to consider the snow load and water accumulation load on the covering sealing material, which greatly increases the cost.

[0005] Therefore, in view of the defects of the prior art, it is urgent to develop a new type of suspended membrane covering and sealing device for accident sewage pool. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art and to provide a suspended membrane covering and sealing device for an accident sewage pool with a heating and snow melting facility. Through the snow melting design and drainage design, there is no need to consider the snow load and water load on the covering sealing material, thereby greatly reducing the construction cost.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A suspended membrane covering and sealing device for an accident sewage pool with a heating and snow melting facility comprises an accident sewage pool body, a suspension cable is provided above the liquid level line of the accident sewage pool body, a covering sealing material is provided on the suspension cable, and the periphery of the covering sealing material is fixed to the accident sewage pool body, and is characterized in that a perforated steam pipe is provided between the liquid level line and the suspension cable, a plurality of perforations are evenly provided on the perforated steam pipe and the perforations are oriented downward and toward the center of the accident sewage pool, and the perforated steam pipe is connected to a steam source via a self-powered steam regulating valve and a steam stop valve, so as to utilize the steam injection velocity and the temperature difference flow of the gas in the accident sewage pool to make the temperature of the space below the covering sealing material evenly distributed.

[0009] Preferably, the covering sealing material is provided with an in-pool drainage and air supply port, which is used to discharge rainwater, melted snow water on the covering sealing material or flushing water for cleaning the covering sealing material into the body of the accident sewage pool. The drainage and air supply port also serves as an opening for replenishing air into the pool when the gas in the pool is extracted and processed.

[0010] Preferably, the covering sealing material is provided with an air outlet, and the air outlet is used to extract the foul smelling waste gas generated by the sewage in the accident sewage pool.

[0011] Preferably, an external drain outlet is provided on the side wall of the accident sewage pool body, and the external drain outlet is used to discharge the accumulated water on the covering sealing material.

[0012] Preferably, the suspension cable extends from one side of the accident sewage tank body to the other opposite side and both ends of the suspension cable are fixed to the accident sewage tank body.

[0013] Preferably, the number of the suspension cables is at least 3 and the suspension cables are arranged in parallel or in a cross arrangement.

[0014] Preferably, a tensioner is provided on the suspension cable, and the tensioner is used to adjust the suspension cable to put it in a taut state.

[0015] Preferably, a windproof suspension cable is provided above the covering sealing material, and the windproof suspension cable is used to prevent the covering sealing material from being sucked up and damaged when there is a strong wind and negative pressure.

[0016] Preferably, an observation port is provided on the covering sealing material to facilitate viewing of the situation in the accident sewage pool.

[0017] Preferably, the covering sealing material is provided with an inspection port so that equipment installed in the accident sewage pool can be taken out of the pool for inspection or so that inspectors can enter the accident sewage pool.

[0018] Compared with the prior art, the suspended membrane covering and sealing device for the accident sewage pool with heating and snow melting facilities of the utility model has one or more of the following beneficial technical effects:

[0019] 1. The utility model can quickly remove the snow on the covering sealing material through the snow melting design and drainage design, so that there is no need to consider the snow load and water load on the covering sealing material, which can greatly reduce the project cost.

[0020] 2. The utility model is light in weight, convenient in construction, low in cost, has a large span, and will not form snow accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a structural schematic diagram of a suspended membrane covering and sealing device for an accident sewage pool with a heating snow melting facility. DETAILED DESCRIPTION

[0022] In order to solve the problems of high cost of sealing and covering accident sewage pools in the prior art and the inability of conventional suspended membrane technology to melt snow, the inventor of the utility model has developed a suspended membrane covering and sealing device for accident sewage pools with heating and snow melting facilities after long-term research.

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Figure 1 The schematic diagram of the structure of the suspension membrane cover sealing device of the accident sewage pool with heating snow melting facilities of the utility model is shown. Figure 1 As shown, the suspended membrane covering and sealing device of the accident sewage pool with heating and snow melting facilities of the utility model comprises an accident sewage pool body 1. The accident sewage pool body 1 is filled with accident sewage, so as to form a liquid surface line 2 of the accident sewage pool body 1.

[0026] In the present invention, a suspension cable 3 is provided above the liquid surface line 2 of the accident sewage pool body 1. The suspension cable 3 extends from one side of the accident sewage pool body 1 to the other opposite side and both ends of the suspension cable 3 are fixed to the accident sewage pool body 1.

[0027] The covering sealing material 4 is laid on the suspension cable 3, or the covering sealing material 4 is hung on the suspension cable 3 below the suspension cable 3. The periphery of the covering sealing material 4 is fixed on the accident sewage pool body 1, or is sunk to a proper depth below the liquid surface line 2 to play a sealing role.

[0028] Preferably, the number of the suspension cables 3 is at least 3 and the suspension cables 3 are arranged in parallel or crosswise, thereby better supporting the covering sealing material 4.

[0029] More preferably, a tensioner 5 is provided on the suspension cable 3. The tensioner 5 is used to adjust the suspension cable 3 to make it in a tight state. In this way, the drooping curvature of the suspension cable 3 can be adjusted according to the change of seasons and the tightness of the suspension cable 3 through the tensioner 5, so as to better tighten the covering sealing material 4.

[0030] The suspension cable 3 can be made of suitable corrosion-resistant and low-expansion materials such as stainless steel wire rope, plastic-coated galvanized steel wire rope, carbon fiber bundle, etc. The covering sealing material 4 can be made of airtight, corrosion-resistant, light-weight, and easy-to-process membrane materials, such as fluorocarbon membrane, coated cloth, geomembrane, etc., or can be made of light-weight and corrosion-resistant thin-walled plates, such as fiberglass skylights, sun panels, and endurance panels.

[0031] Different from the prior art, in the present invention, a perforated steam pipe 12 is provided between the liquid surface line 2 and the suspension cable 3. The perforated steam pipe 12 is evenly provided with a plurality of perforations, and the perforations face downward and toward the center of the accident sewage pool. The perforated steam pipe 12 is connected to the steam source through a self-operated steam regulating valve 13 and a steam stop valve 14, so as to utilize the jet speed of steam and the temperature difference flow of the gas in the accident sewage pool to make the temperature of the space under the covering sealing material 4 uniformly distributed.

[0032] Therefore, in winter when the air temperature and the temperature inside the pool are low, before the weather forecast predicts snowfall, steam can be released through the perforated steam pipe 12 to heat the space inside the accident sewage pool body 1 below the covering sealing material 4, so that the covering sealing material 4 maintains a reasonable temperature sufficient to melt the snow, and the melted snow water is discharged into the pool body 1 through the drainage and air supply port 7 in the pool. In addition, the amount of steam released by the perforated steam pipe 12 can be adjusted by the self-operated steam regulating valve 13 and the steam stop valve 14 to ensure that the fallen snow can be melted into snow water. After the snowfall ends, the steam stop valve 14 can be closed to avoid waste. Through the snow melting design and drainage design, the utility model does not need to consider the snow load and water load on the covering sealing material 4, which greatly reduces the project cost.

[0033] Preferably, the perforated steam pipes 12 are provided below the covering sealing material 4 and close to the liquid level line 2 along the four sides of the pool.

[0034] More preferably, the covering sealing material 4 is provided with an in-pool drainage and air supply port 7. The in-pool drainage and air supply port 7 is used to discharge rainwater, snowmelt water or flushing water for cleaning the covering sealing material 4 on the covering sealing material 4 into the accident sewage pool body 1. Therefore, when it snows in winter, the steam released through the perforated steam pipe 12 can melt the snow into snow water, and the snow water can be discharged into the accident sewage pool body 1 through the in-pool drainage and air supply port 7 to prevent accumulation on the covering sealing material 4.

[0035] One or more drainage and air supply ports 7 can be provided in the pool to timely remove the falling water from above and avoid water accumulation.

[0036] In addition, an external drain port 8 may be provided on the side wall of the accident sewage pool body 1. In this way, when the internal drain and air supply port 7 cannot drain all the accumulated water in time, or when the pool body 1 cannot receive the falling water, the accumulated water on the covering sealing material 4 can be drained through the external drain port 8.

[0037] The drainage and air supply port 7 in the pool should adopt appropriate sealing measures so that it can be satisfactorily sealed when there is no water falling in, but can fully drain the water into the pool when there is water on it.

[0038] More preferably, the covering sealing material 4 is provided with an air outlet 6. The air outlet 6 is used to extract the malodorous waste gas generated by the sewage in the accident sewage pool body 1. At the same time, the drainage air inlet 7 in the pool can be used as the air inlet of the air outlet 6.

[0039] In addition, in the present invention, a windproof suspension cable 9 is provided above the covering sealing material 4. The windproof suspension cable 9 is used to prevent the covering sealing material 4 from being sucked up and damaged when there is a strong wind and negative pressure.

[0040] Preferably, an observation port 10 is provided on the covering sealing material 4 so as to check the situation in the accident sewage pool.

[0041] More preferably, the covering sealing material 4 is provided with an inspection port 11 so as to lift the equipment installed in the accident sewage pool out of the pool for inspection or to allow inspectors to enter the accident sewage pool.

[0042] The above embodiments of the utility model are merely examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the utility model are still within the scope of protection of the utility model.

Claims

1. A suspended membrane covering and sealing device for an accident sewage pool with a heating and snow melting facility, comprising an accident sewage pool body (1), a suspension cable (3) being provided above a liquid surface line (2) of the accident sewage pool body (1), a covering sealing material (4) being provided on the suspension cable (3), and a periphery of the covering sealing material (4) being fixed on the accident sewage pool body (1), characterized in that: A perforated steam pipe (12) is provided between the liquid surface line (2) and the suspension cable (3), wherein a plurality of perforations are evenly arranged on the perforated steam pipe (12) and the perforations face downward and toward the center of the accident sewage pool. The perforated steam pipe (12) is connected to a steam source via a self-operated steam regulating valve (13) and a steam stop valve (14), so as to utilize the jetting speed of the steam and the temperature difference flow of the gas in the accident sewage pool to make the temperature of the space below the covering sealing material (4) evenly distributed.

2. The suspended membrane covering and sealing device for an accident sewage pool with heating and snow melting facilities according to claim 1 is characterized in that: The covering sealing material (4) is provided with an in-pool drainage and air supply port (7), and the in-pool drainage and air supply port (7) is used to discharge rainwater, snowmelt water or flushing water for cleaning the covering sealing material (4) on the surface of the covering sealing material (4) into the accident sewage pool body (1).

3. The suspended membrane covering and sealing device for an accident sewage pool with heating and snow melting facilities according to claim 2 is characterized in that: The covering sealing material (4) is provided with an air outlet (6), and the air outlet (6) is used to extract the malodorous waste gas generated by the sewage in the accident sewage pool body (1).

4. The suspended membrane covering and sealing device for an accident sewage pool with heating and snow melting facilities according to claim 3 is characterized in that: An external drain port (8) is provided on the side wall of the accident sewage pool body (1), and the external drain port (8) is used to drain the accumulated water on the covering sealing material (4).

5. The suspended membrane covering and sealing device for an accident sewage pool with heating and snow melting facilities according to any one of claims 1 to 4, characterized in that: The suspension cable (3) extends from one side of the accident sewage tank body (1) to the other opposite side, and both ends of the suspension cable (3) are fixed to the accident sewage tank body (1).

6. The suspended membrane covering and sealing device for the accident sewage pool with heating and snow melting facilities according to claim 5 is characterized in that: The number of the suspension cables (3) is at least 3 and the suspension cables (3) are arranged in parallel or in a cross arrangement.

7. The suspended membrane covering and sealing device for an accident sewage pool with heating and snow melting facilities according to claim 6 is characterized in that: A tensioner (5) is provided on the suspension cable (3), and the tensioner (5) is used to adjust the suspension cable (3) so that it is in a taut state.

8. The suspended membrane covering and sealing device for an accident sewage pool with heating and snow melting facilities according to claim 7 is characterized in that: A windproof suspension cable (9) is provided above the covering sealing material (4), and the windproof suspension cable (9) is used to prevent the covering sealing material (4) from being sucked up and damaged during strong wind and negative pressure.

9. The suspended membrane covering and sealing device for an accident sewage pool with heating and snow melting facilities according to claim 8, characterized in that: The covering sealing material (4) is provided with an observation port (10) for viewing the situation in the accident sewage pool.

10. The suspended membrane covering and sealing device for an accident sewage pool with heating and snow melting facilities according to claim 9, characterized in that: The covering sealing material (4) is provided with an inspection port (11) so as to enable equipment installed in the accident sewage pool to be taken out of the pool for inspection or to allow inspectors to enter the accident sewage pool.

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