Waste heat recovery system for fermentation tank

Abstract

The utility model discloses a waste heat recovery system for a fermentation tank, which comprises a fermentation tank main body, a heat exchange tower, a spray tower, a first connecting pipe, a second connecting pipe, a third connecting pipe and a fourth connecting pipe, the fermentation tank main body comprises an aeration mechanism for aerating the fermentation tank main body, and the aeration mechanism has a gas heating function; the heat exchange tower comprises a shell, two partition plates, a heat exchange pipe and a water outlet pipe, the two partition plates are arranged in the shell, and the interior of the shell is sequentially divided into a gas outlet cavity, a heat exchange cavity and a gas inlet cavity from top to bottom by the two partition plates. The air outlet end of the fermentation tank main body is communicated with the air inlet cavity of the heat exchange tower through the first connecting pipe, the air inlet end of the aeration mechanism is communicated with the heat exchange cavity of the heat exchange tower through the second connecting pipe, and the third connecting pipe is communicated with the heat exchange cavity, so that heat in waste gas generated by the fermentation tank main body can be recycled; the energy consumption of the device is reduced, and the use cost is reduced.

Description

[Technical field]

[0001] The utility model relates to the technical field of environmental protection, in particular to the technical field of waste heat recovery systems. [Background technology]

[0002] The fermentation tank is a commonly used device for processing waste such as feces and straw. When in use, it often needs to continuously introduce hot air to accelerate the fermentation of the materials inside the fermentation tank. During use, hot exhaust gas will be continuously discharged, and these exhaust gases are often directly discharged into the air after being treated by the spray tower. However, the heat in these exhaust gases is wasted, which will cause the fermentation tank to consume more energy and increase the cost of use. [Utility Model Content]

[0003] The purpose of the utility model is to solve the problems in the prior art and to propose a waste heat recovery system for a fermentation tank, which can effectively recover and utilize the heat in the waste gas of the fermentation tank and reduce energy consumption.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes a waste heat recovery system for a fermentation tank, including a fermentation tank body, a heat exchange tower, a spray tower, a first connecting pipe, a second connecting pipe, a third connecting pipe, and a fourth connecting pipe. The fermentation tank body includes an aeration mechanism for aerating the fermentation tank body, and the aeration mechanism has a gas heating function. The heat exchange tower includes an outer shell, a partition plate, a heat exchange pipe, and a water outlet pipe. Two partition plates are arranged inside the outer shell, and the two partition plates divide the inner shell from top to bottom into an outlet cavity, a heat exchange cavity, and an inlet cavity. The air cavity is provided with a plurality of heat exchange tubes fixed between the two heat separation plates, the heat exchange tubes are connected with the air outlet cavity and the air inlet cavity, a water outlet pipe with a valve is arranged at the bottom of the air inlet cavity, the first connecting tube is connected with the air outlet end of the fermentation tank body and the air inlet cavity of the heat exchange tower, the second connecting tube is connected with the air inlet end of the aeration mechanism and the heat exchange cavity of the heat exchange tower, the third connecting tube is installed on the heat exchange tower, the third connecting tube is connected with the heat exchange cavity, the third connecting tube is connected with an air inlet fan, and the fourth connecting tube is connected with the air outlet cavity of the heat exchange tower and the air inlet end of the spray tower.

[0005] Preferably, the second connecting pipe is connected to the lower part of the heat exchange chamber, and the third connecting pipe is connected to the upper part of the heat exchange chamber.

[0006] Preferably, spiral heat exchange fins are provided on the outer wall of the heat exchange tube.

[0007] Preferably, a high altitude exhaust pipe is provided at the top of the spray tower.

[0008] The beneficial effects of the utility model are as follows: the utility model connects the air outlet end of the fermentation tank body and the air inlet cavity of the heat exchange tower through the first connecting pipe, connects the air inlet end of the aeration mechanism and the heat exchange cavity of the heat exchange tower through the second connecting pipe, and the third connecting pipe is connected to the heat exchange cavity, so that the heat in the exhaust gas generated by the fermentation tank body can be recycled, thereby reducing the energy consumption of the device and reducing the use cost.

[0009] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0010] Figure 1 This is a front view of the waste heat recovery system for a fermentation tank of the utility model;

[0011] Figure 2 It is a cross-sectional view of a heat exchange tower of a waste heat recovery system for a fermentation tank of the utility model.

[0012] In the figure: 1-fermentation tank body, 2-heat exchange tower, 3-spray tower, 20-shell, 21-partition plate, 22-heat exchange tube, 23-heat exchange plate, 24-water outlet pipe, 25-air outlet cavity, 26-heat exchange cavity, 27-air inlet cavity, 30-high altitude exhaust pipe, 41-first connecting pipe, 42-second connecting pipe, 43-third connecting pipe, 44-fourth connecting pipe. [Specific implementation method]

[0013] See also Figure 1 , Figure 2 The utility model fermentation tank waste heat recovery system comprises a fermentation tank body 1, a heat exchange tower 2, a spray tower 3, a first connecting pipe 41, a second connecting pipe 42, a third connecting pipe 43, and a fourth connecting pipe 44. The fermentation tank body 1 comprises an aeration mechanism for aerating the fermentation tank body 1, and the aeration mechanism has a gas heating function. The heat exchange tower 2 comprises a shell 20, a partition plate 21, a heat exchange pipe 22, and a water outlet pipe 24. Two partition plates 21 are arranged inside the shell 20. The two partition plates 21 divide the inside of the shell 20 from top to bottom into an air outlet cavity 25, a heat exchange cavity 26, and an air inlet cavity 27. The two heat partition plates 21 are arranged inside the shell 20. A plurality of heat exchange tubes 22 are fixed between the partitions 21, and the heat exchange tubes 22 connect the air outlet chamber 25 and the air inlet chamber 27. A water outlet pipe 24 with a valve is provided at the bottom of the air inlet chamber 27. The first connecting tube 41 connects the air outlet end of the fermentation tank body 1 and the air inlet chamber 27 of the heat exchange tower 2. The second connecting tube 42 connects the air inlet end of the aeration mechanism and the heat exchange chamber 26 of the heat exchange tower 2. The third connecting tube 43 is installed on the heat exchange tower 2. The third connecting tube 43 is connected to the heat exchange chamber 26. The third connecting tube 43 is connected to an air inlet fan. The fourth connecting tube 44 connects the air outlet chamber 25 of the heat exchange tower 2 and the air inlet end of the spray tower 3.

[0014] The second connecting pipe 42 is communicated with the lower portion of the heat exchange chamber 26 , and the third connecting pipe 43 is communicated with the upper portion of the heat exchange chamber 26 .

[0015] The outer wall of the heat exchange tube 22 is provided with a spiral heat exchange fin 23 .

[0016] A high altitude exhaust pipe 30 is provided on the top of the spray tower 3 .

[0017] Working process of this utility model:

[0018] During the operation of the waste heat recovery system for a fermentation tank of the utility model, the hot exhaust gas generated by the fermentation tank body 1 passes through the first connecting pipe 41, the air inlet chamber 27, the heat exchange pipe 22, the air outlet chamber 25, the fourth connecting pipe 44, the spray tower 3 in sequence, and is finally discharged into the atmosphere from the high-altitude exhaust pipe 30 on the spray tower 3. The air intake fan passes the air into the heat exchange chamber 26 through the third connecting pipe 43 and leaves from the second connecting pipe 42. When the air flows through the heat exchange pipe 22, the hot exhaust gas flowing through the heat exchange pipe 22 will be heated by the heat exchange pipe 22, and the heat in the hot exhaust gas is recycled, so that the air has a certain temperature when it enters the second connecting pipe 42. The air enters the aeration mechanism through the second connecting pipe 42, and the aeration mechanism further heats the air before passing it into the fermentation tank body 1.

[0019] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. Waste heat recovery system for fermentation tank, characterized by: The invention comprises a fermentation tank body (1), a heat exchange tower (2), a spray tower (3), a first connecting pipe (41), a second connecting pipe (42), a third connecting pipe (43), and a fourth connecting pipe (44). The fermentation tank body (1) comprises an aeration mechanism for aerating the fermentation tank body (1), and the aeration mechanism has a gas heating function. The heat exchange tower (2) comprises an outer shell (20), a partition plate (21), a heat exchange pipe (22), and a water outlet pipe (24). Two partition plates (21) are arranged inside the outer shell (20). The two partition plates (21) divide the inside of the outer shell (20) into an air outlet cavity (25), a heat exchange cavity (26), and an air inlet cavity (27) from top to bottom. A heat exchange cavity (27) is fixed between the two heat partition plates (21). A plurality of heat exchange pipes (22) are provided, wherein the heat exchange pipes (22) are connected to an air outlet cavity (25) and an air inlet cavity (27); a water outlet pipe (24) with a valve is provided at the bottom of the air inlet cavity (27); the first connecting pipe (41) is connected to the air outlet end of the fermentation tank body (1) and the air inlet cavity (27) of the heat exchange tower (2); the second connecting pipe (42) is connected to the air inlet end of the aeration mechanism and the heat exchange cavity (26) of the heat exchange tower (2); the third connecting pipe (43) is installed on the heat exchange tower (2); the third connecting pipe (43) is connected to the heat exchange cavity (26); the third connecting pipe (43) is connected to an air inlet fan; and the fourth connecting pipe (44) is connected to the air outlet cavity (25) of the heat exchange tower (2) and the air inlet end of the spray tower (3).

2. The waste heat recovery system for a fermentation tank according to claim 1, characterized in that: The second connecting pipe (42) is connected to the lower part of the heat exchange chamber (26), and the third connecting pipe (43) is connected to the upper part of the heat exchange chamber (26).

3. The waste heat recovery system for a fermentation tank according to claim 1, characterized in that: The outer wall of the heat exchange tube (22) is provided with a spiral heat exchange fin (23).

4. The waste heat recovery system for a fermentation tank according to claim 1, characterized in that: A high-altitude exhaust pipe (30) is provided on the top of the spray tower (3).

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