Thermal insulation structure of anaerobic tank

Abstract

The utility model provides a thermal insulation structure of an anaerobic tank, the anaerobic tank sequentially comprises an outer wall, a thermal insulation layer, a heat supply layer and a heat conduction inner layer from outside to inside, the outer wall is a concrete wall body, the innermost layer of the thermal insulation layer is a polyethylene thermal insulation layer, and bubbles are uniformly arranged on the inner side of the polyethylene thermal insulation layer at intervals; the heat supply layer comprises multiple layers of side heating pipes and pool bottom heating pipes which are arranged at equal intervals, the side heating pipes surround the inner side of the heat preservation layer, and water inlet pipes and water outlet pipes of the side heating pipes penetrate through the outer wall to be connected with a heat supply device; the pool bottom heating pipe is a heating coil, a water inlet section and a water outlet section at the end of the pool bottom heating pipe also penetrate through the outer wall to be connected with the heat supply device, and the heat conduction inner layer makes contact with the side heating pipe and the pool bottom heating pipe. Through the multi-layer structural design, heat loss is effectively reduced, and the heat preservation performance is further improved through the polyethylene heat preservation layer and bubbles on the inner side of the polyethylene heat preservation layer; the layout of the side heating pipes and the tank bottom heating pipe ensures the uniformity of the temperature in the anaerobic tank, and is beneficial to maintaining the activity of anaerobic microorganisms.

Description

TECHNICAL FIELD

[0001] The utility model relates to anaerobic tank heat preservation field, specifically, relate to a heat preservation structure of anaerobic tank. BACKGROUND

[0002] In the sewage treatment process, anaerobic tank is one of the commonly used treatment facilities, which is used to degrade organic matter in sewage through the action of anaerobic microorganisms. The activity of anaerobic microorganisms is greatly affected by temperature, and the suitable temperature range is usually in the medium and high temperature interval. However, in practical application, especially in the area with large climate change, the temperature of anaerobic tank is often difficult to maintain in the ideal range, resulting in the decrease of treatment efficiency.

[0003] The existing anaerobic tank heat preservation measures mainly include the following:

[0004] 1. Passive heat preservation: wrapping the outer wall and top cover of the anaerobic tank with heat preservation materials such as foamed plastic, rock wool, etc. to reduce heat loss. Although this method is simple, the heat preservation effect is limited by the thickness of the material and the environmental temperature, and the temperature cannot be actively adjusted;

[0005] 2. Active heating: installing heating elements such as electric heaters or heat exchangers inside the anaerobic tank to maintain the temperature in the tank. Although this method can actively control the temperature, the heating is unevenly distributed, and the temperature can only be adjusted as a whole. SUMMARY

[0006] The utility model is just based on the above technical problem, and proposes a heat preservation structure of anaerobic tank.

[0007] A heat preservation structure of anaerobic tank, the anaerobic tank is sequentially from outside to inside outer wall, heat preservation layer, heat supply layer, heat conduction inner layer, the outer wall is concrete wall, the heat preservation layer covers and is fixed in the inner side of the outer wall, the innermost layer of the heat preservation layer is polyethylene heat preservation layer, and uniform bubbles are provided on the inner side of the polyethylene heat preservation layer; The heat supply layer is a plurality of side heating pipes and pool bottom heating pipes with the same interval, the side heating pipes are wrapped around the inner side of the heat preservation layer, the side heating pipes are fixed on the inner side of the outer wall, the water inlet pipe and the water outlet pipe of the side heating pipes pass through the outer wall and are connected with the heat supply device; The pool bottom heating pipe is a heating coil pipe, the water inlet section and the water outlet section of the end portion also pass through the outer wall and are connected with the heat supply device, the heat conduction inner layer is made of heat conduction material, and the heat conduction inner layer is in contact with the side heating pipe and the pool bottom heating pipe.

[0008] Preferably, the water inlet pipe and the water outlet pipe are provided on each layer of the heating pipe, a water valve is provided on the water inlet pipe, and the other end of the water valve is in communication with one heat supply pipe.

[0009] Preferably, the outer end of the water outlet pipe is in communication with one heat recovery pipe.

[0010] Preferably, the material of the heat-conducting inner layer is stainless steel, and the inner side of the stainless steel is coated with a corrosion-resistant coating.

[0011] Advantages:

[0012] 1. Optimized heat preservation effect: Through the multi-layer structure design of the outer wall, the heat preservation layer, the heat supply layer and the heat-conducting inner layer, heat loss is effectively reduced, the temperature in the pool is kept stable, and the polyethylene heat preservation layer and the bubbles on its inner side further improve the heat preservation performance.

[0013] 2. Uniform heat supply: The layout of the side heating pipe and the pool bottom heating pipe ensures the uniformity of the temperature inside the anaerobic tank, avoiding the problem of local overheating or uneven temperature, which is conducive to maintaining the activity of anaerobic microorganisms.

[0014] 3. Energy saving and high efficiency: Through reasonable design of the heat supply system, such as configuration of the water inlet pipe and the water outlet pipe, and connection of the water valve and the heat supply pipe and the heat recovery pipe, effective utilization and adjustment of heat energy are realized, and energy consumption is reduced.

[0015] 4. Corrosion resistance and durability: The heat-conducting inner layer is made of stainless steel and coated with a corrosion-resistant coating, which improves the corrosion resistance and durability of the structure and prolongs the service life.

[0016] 5. Strong adaptability: The heat preservation structure is suitable for different climate conditions and environments, and can maintain the normal operation of the anaerobic tank under different temperature environments, with strong adaptability.

[0017] 6. Economical and practical: Compared with a complex temperature control system, the structure simplifies the design, reduces investment and operating costs, and provides effective heat preservation and heat supply functions, with high cost performance.

[0018] 7. Easy maintenance: The structure is clear and the components are standardized, making it easy to maintain and replace, reducing the difficulty of operation and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 The structure of the present application is shown in the structure diagram.

[0020] Fig. 2 The structure of the heat preservation layer and the heat supply layer of the present application is shown in the structure diagram. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] As Figs. 1-2The heat preservation structure of the anaerobic tank is shown, and the anaerobic tank is sequentially provided with an outer wall 1, a heat preservation layer 2, a heat supply layer and a heat conduction inner layer 3 from outside to inside.

[0023] The heat supply layer is provided with a plurality of side heating pipes 6 and a tank bottom heating pipe 10, the side heating pipes 6 are arranged around the inner side of the heat preservation layer 2, the side heating pipes 6 are fixed to the inner side of the outer wall 1, the water inlet pipe 71 and the water outlet pipe 72 of the side heating pipes 6 pass through the outer wall 1 and are connected with a heat supply device, the tank bottom heating pipe 10 is a heating coil pipe, and the water inlet section 12 and the water outlet section 13 at the end of the tank bottom heating pipe 10 also pass through the outer wall 1 and are connected with the heat supply device, the heat conduction inner layer 3 is made of a heat conduction material, and the heat conduction inner layer 3 is in contact with the side heating pipes 6 and the tank bottom heating pipe 10.

[0024] In an implementable embodiment, the water inlet pipe 71 and the water outlet pipe 72 are arranged on each heating pipe, the water inlet pipe 71 is provided with a water valve 9, the other end of the water valve 9 is communicated with a heat supply pipe 8, and the outer end of the water outlet pipe 72 is communicated with a heat recovery pipe 11.

[0025] The side heating pipes 6 are uniformly arranged, the flow rate of the heat source of a certain layer can be individually adjusted through the water valve 9, the temperature of the layer is further finely adjusted, the effective utilization and adjustment of the heat energy are realized, and the energy consumption is reduced.

[0026] In an implementable embodiment, the material of the heat conduction inner layer 3 is stainless steel, the inner side of the stainless steel is provided with a corrosion-resistant coating, the heat conduction inner layer 3 is made of stainless steel and is coated with a corrosion-resistant coating, the corrosion resistance and durability of the structure are improved, and the service life is prolonged.

[0027] The above only describes preferred embodiments of the present application and is not used to limit the present application, and the present application can be variously changed and modified for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An insulation structure for an anaerobic tank, characterized in that: The anaerobic tank is composed of an outer wall, an insulation layer, a heating layer, and a heat-conducting inner layer from the outside to the inside. The outer wall is a concrete wall. The insulation layer covers and is fixed to the inner side of the outer wall. The innermost layer of the insulation layer is a polyethylene insulation layer, and the inner side of the polyethylene insulation layer has bubbles with uniform spacing; the heating layer is a multi-layer side heating pipe and a bottom heating pipe with the same spacing. The side heating pipe surrounds the inner side of the insulation layer and is fixed to the inner side of the outer wall. The water inlet pipe and the water outlet pipe of the side heating pipe pass through the outer wall and are connected to the heating device; the bottom heating pipe is a heating coil, and the water inlet section and the water outlet section at its end also pass through the outer wall and are connected to the heating device. The heat-conducting inner layer is made of a heat-conducting material and is in contact with the side heating pipe and the bottom heating pipe.

2. The thermal insulation structure of the anaerobic tank according to claim 1, characterized in that: Each layer of the heating pipes is provided with the water inlet pipe and the water outlet pipe, the water inlet pipe is provided with a water valve, and the other end of the water valve is connected to a heating pipe.

3. The thermal insulation structure of the anaerobic tank according to claim 2, characterized in that: The outer ends of the water outlet pipes are all communicated with a heat return pipe.

4. The thermal insulation structure of the anaerobic tank according to claim 1, characterized in that: The heat-conducting inner layer is made of stainless steel, and the inner side of the stainless steel is provided with a corrosion-resistant coating.

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