Aerated concrete still kettle waste heat utilization device

Abstract

The utility model discloses a waste heat utilization device of an aerated concrete still kettle, which relates to the technical field of aerated concrete processing, and comprises a water storage bin, the top and the bottom of the water storage bin are fixedly connected with water changing valve pipes, the inner wall and the top of the water storage bin are provided with efficient heat exchange mechanisms, the outer wall of the water storage bin is provided with a moving mechanism, and the moving mechanism is connected with the water changing valve pipes. And the efficient heat exchange mechanism comprises a driving motor and a heat exchange thin pipe, the driving motor is fixedly installed at the center of the top of the water storage bin, and an output shaft of the driving motor extends into an inner cavity of the water storage bin and is fixedly connected with a rotating square shaft. Through the design of the driving motor, the rotating square shaft can be driven to rotate in the inner cavity of the water storage bin, the stirring blades are synchronously driven to rotate, water in the inner cavity of the water storage bin is stirred, the contact rate of the water and the outer surfaces of the heat exchange thin pipes is increased, the heating effect of steam on the water is improved, and then the heat recovery effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aerated concrete processing, in particular to a device for utilizing waste heat from an aerated concrete autoclave. Background Art

[0002] Aerated concrete is a lightweight porous silicate product made of siliceous and calcareous materials as the main raw materials, mixed with gas-generating agents, and made through processes such as batching, mixing, pouring, pre-curing, cutting, autoclaving, and curing. It is named aerated concrete because it contains a large number of uniform and fine pores after gasification. Autoclaves are used in the production process of aerated concrete, which produces a large amount of steam, and the waste heat of the steam needs to be recovered.

[0003] A Chinese patent discloses an autoclave wastewater waste heat recovery device, the publication number is CN216384141U, and the technical solution disclosed in the patent document is as follows: it includes a water tank, a wastewater inlet pipe, a heat exchange pipe and a wastewater outlet pipe; the wastewater inlet pipe is used to introduce wastewater generated by the autoclave, the heat exchange pipe is located inside the water tank, and the wastewater inlet pipe and the wastewater outlet pipe are respectively connected to both ends of the heat exchange pipe.

[0004] In order to solve the problem that the wastewater generated by the autoclave does not meet the water quality standards and cannot be directly used as water for the steam boiler, the existing technology adopts the method of designing components such as wastewater inlet pipes and heat exchange tubes for treatment. However, the heat exchange efficiency is still low, and the contact rate between the water in the water tank and the outer surface of the heat exchange tube is low, which leads to the problem of low heat recovery efficiency. Utility Model Content

[0005] The utility model aims to provide a device for utilizing waste heat of an aerated concrete autoclave to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A waste heat utilization device for an aerated concrete autoclave comprises a water storage tank, the top and bottom of which are fixedly connected with a water exchange valve pipe, the inner wall and the top of the water storage tank are provided with a high-efficiency heat exchange mechanism, and the outer wall of the water storage tank is provided with a moving mechanism.

[0008] The high-efficiency heat exchange mechanism includes a drive motor and a heat exchange tube. The drive motor is fixedly installed at the center of the top of the water storage tank. The output shaft of the drive motor extends into the inner cavity of the water storage tank and is fixedly connected to a rotating square shaft. A stirring blade is fixedly installed on the outer wall of the rotating square shaft. A reinforcement rod is fixedly installed on the outer wall of the stirring blade. The drive motor can drive the stirring blade to rotate, mix the water body, and increase the heat recovery rate.

[0009] A further improvement of the technical solution of the utility model is that the heat exchange tubes are fixedly installed on the inner wall of the water storage tank, the top of the heat exchange tubes extends to the top of the water storage tank and is fixedly connected to a No. 1 centralized pipeline, and the heat exchange effect can be improved through the distribution design of the heat exchange tubes.

[0010] A further improvement of the technical solution of the utility model is that: the bottom of the heat exchange tube is fixedly connected to a No. 2 centralized pipe, the No. 2 centralized pipe is fixedly installed on the bottom of the inner wall of the water storage tank, the bottom of the No. 2 centralized pipe is fixedly connected to an air intake pipe, and the top of the No. 1 centralized pipe is fixedly connected to an exhaust pipe.

[0011] A further improvement of the technical solution of the utility model is that the moving mechanism includes a reinforcement frame, which is fixedly installed on the outer wall of the water storage tank, a support arm is fixedly installed on the bottom of the reinforcement frame, and a slide rod is slidably connected to the inner wall of the support arm. The design of the slide rod facilitates the buffering work.

[0012] A further improvement of the technical solution of the utility model is that a lower support seat is fixedly installed on the bottom of the sliding rod, an elastic member is fixedly installed on the top of the lower support seat, the top of the elastic member is fixedly connected to the bottom of the support arm, and the elastic member can produce elastic deformation for buffering and protecting the structure.

[0013] A further improvement of the technical solution of the utility model is that a universal wheel is arranged at the bottom of the lower support seat, and a protruding block is fixedly installed on the outer wall of the lower support seat. The design of the universal wheel facilitates the user to carry out turnover processing of the structure.

[0014] A further improvement of the technical solution of the utility model is that: the top of the raised block is threadedly connected to a threaded rod, the threaded end of the threaded rod extends to the bottom of the raised block and is rotatably connected to a supporting circular pad, and rotating the threaded rod can drive the supporting circular pad to move downward to position the structure.

[0015] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0016] 1. The utility model provides a waste heat utilization device for an aerated concrete autoclave. Through the design of a driving motor, a rotating square shaft can be driven to rotate in the inner cavity of a water storage tank, and a stirring blade can be driven to rotate synchronously to stir the water in the inner cavity of the water storage tank, thereby increasing the contact rate between the water and the outer surface of the heat exchange capillary, improving the effect of steam heating the water, and thus increasing the effect of heat recovery.

[0017] 2. The utility model provides a waste heat utilization device for an aerated concrete autoclave. The design of universal wheels makes it easy for users to rotate the structure as a whole. The cooperation of the raised block and the threaded rod makes it easy for users to position the structure. The cooperation of the lower support seat and the elastic member can provide buffer protection during the movement of the structure, thereby improving the practicality of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cutaway structure of the water storage tank of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the stirring blade of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the support arm of the utility model.

[0022] In the figure: 1, water storage tank; 11, water exchange valve pipe;

[0023] 2. High-efficiency heat exchange mechanism; 21. Driving motor; 22. Rotating square shaft; 23. Stirring blades; 24. Reinforcement rod; 25. No. 1 centralized pipeline; 26. No. 2 centralized pipeline; 27. Heat exchange capillary tube; 28. Inlet pipe; 29. ​​Exhaust pipe;

[0024] 3. Moving mechanism; 31. Reinforcement frame; 32. Support arm; 33. Sliding rod; 34. Lower support seat; 35. Elastic member; 36. Universal wheel; 37. Raised block; 38. Threaded rod. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the embodiments:

[0026] Example 1

[0027] like Figure 1-4As shown, the utility model provides a waste heat utilization device for an aerated concrete autoclave, comprising a water storage tank 1, the top and bottom of the water storage tank 1 are fixedly connected with a water exchange valve pipe 11, the inner wall and the top of the water storage tank 1 are provided with a high-efficiency heat exchange mechanism 2, the outer wall of the water storage tank 1 is provided with a moving mechanism 3, the high-efficiency heat exchange mechanism 2 comprises a driving motor 21 and a heat exchange capillary 27, the driving motor 21 is fixedly installed at the center of the top of the water storage tank 1, the output shaft of the driving motor 21 extends into the inner cavity of the water storage tank 1 and is fixedly connected with a rotating square shaft 22, the outer wall of the rotating square shaft 22 is fixedly provided with a stirring blade 23, and the stirring blade 23 A reinforcement rod 24 is fixedly installed on the outer wall of the tank 1, and the cold water pipe is connected to the top of the upper water exchange valve pipe 11, and the hot water recovery pipe is connected to the bottom of the lower water exchange valve pipe 11. The upper water exchange valve pipe 11 is controlled to open to add cold water into the water storage tank 1, and the lower water exchange valve pipe 11 is controlled to open to output the hot water in the water storage tank 1. The driving motor 21 is controlled to drive the rotating square shaft 22 to rotate, and then drive the stirring blade 23 to rotate to stir the water in the water storage tank 1, thereby increasing the contact rate between the water and the outer surface of the heat exchange capillary 27, improving the heat recovery effect, and improving the stability of the stirring blade 23 through the design of the reinforcement rod 24.

[0028] In this embodiment, the heat exchange capillary 27 is fixedly installed on the inner wall of the water storage tank 1, the top of the heat exchange capillary 27 extends to the top of the water storage tank 1 and is fixedly connected to the No. 1 centralized pipe 25, the bottom of the heat exchange capillary 27 is fixedly connected to the No. 2 centralized pipe 26, the No. 2 centralized pipe 26 is fixedly installed on the bottom of the inner wall of the water storage tank 1, the bottom of the No. 2 centralized pipe 26 is fixedly connected to the air inlet pipe 28, the top of the No. 1 centralized pipe 25 is fixedly connected to the exhaust pipe 29, the steam output pipe of the autoclave is pre-connected to the air inlet pipe 28, when the autoclave is running, the steam is transported from the air inlet pipe 28 to the No. 2 centralized pipe 26, the steam will exchange heat with the cold water through the heat exchange capillary 27, and perform heat recovery, and the steam after heat recovery will be discharged from the exhaust pipe 29.

[0029] The top of the lower support seat 34 is fixedly installed with an elastic member 35, and the top of the elastic member 35 is fixedly connected to the bottom of the support arm 32. A universal wheel 36 is provided at the bottom of the lower support seat 34, and a protruding block 37 is fixedly installed on the outer wall of the lower support seat 34. A threaded rod 38 is threadedly connected to the top of the protruding block 37. The threaded end of the threaded rod 38 extends to the bottom of the protruding block 37 and is rotatably connected to a supporting circular pad. The setting of the universal wheel 36 is convenient for the user to carry out turnover processing of the structure as a whole. During the movement, the support arm 32 as a whole can move vertically to compress the elastic member 35 to complete the buffering work. After moving into place, the threaded rod 38 is rotated to drive the supporting circular pad to fit the ground to complete the positioning work.

[0030] The working principle of the aerated concrete autoclave waste heat utilization device is described in detail below.

[0031] like Figure 1-4 As shown, the external cold water pipe is pre-connected to the top of the upper water exchange valve pipe 11, and the hot water recovery pipe is connected to the bottom of the lower water exchange valve pipe 11. Then, the steam output pipe of the autoclave is connected to the air inlet pipe 28. The upper water exchange valve pipe 11 is controlled to open, and cold water is added to the water storage tank 1. Then, the steam is transported from the air inlet pipe 28 to the No. 2 centralized pipeline 26. The steam will exchange heat with the cold water through the heat exchange capillary 27 to heat the cold water and realize the heat recovery function. At the same time, the drive motor 21 is controlled to work and drive the reinforcement rod 24 to rotate, so as to mix the water in the inner cavity of the water storage tank 1, thereby improving the heat recovery rate.

[0032] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A device for utilizing waste heat from an aerated concrete autoclave, comprising a water storage tank (1), characterized in that: The top and bottom of the water storage tank (1) are fixedly connected to a water exchange valve pipe (11), the inner wall and the top of the water storage tank (1) are provided with a high-efficiency heat exchange mechanism (2), and the outer wall of the water storage tank (1) is provided with a moving mechanism (3); The high-efficiency heat exchange mechanism (2) comprises a drive motor (21) and a heat exchange capillary (27); the drive motor (21) is fixedly mounted at the center of the top of the water storage tank (1); the output shaft of the drive motor (21) extends into the inner cavity of the water storage tank (1) and is fixedly connected to a rotating square shaft (22); a stirring blade (23) is fixedly mounted on the outer wall of the rotating square shaft (22); and a reinforcing rod (24) is fixedly mounted on the outer wall of the stirring blade (23).

2. The device for utilizing waste heat from an aerated concrete autoclave according to claim 1, characterized in that: The heat exchange capillary (27) is fixedly mounted on the inner wall of the water storage tank (1); the top of the heat exchange capillary (27) extends to the top of the water storage tank (1) and is fixedly connected to a No. 1 central pipeline (25).

3. The device for utilizing waste heat from an aerated concrete autoclave according to claim 2, characterized in that: The bottom of the heat exchange capillary tube (27) is fixedly connected to a No. 2 centralized pipe (26), and the No. 2 centralized pipe (26) is fixedly installed at the bottom of the inner wall of the water storage tank (1). The bottom of the No. 2 centralized pipe (26) is fixedly connected to an air intake pipe (28), and the top of the No. 1 centralized pipe (25) is fixedly connected to an exhaust pipe (29).

4. The device for utilizing waste heat from an aerated concrete autoclave according to claim 1, characterized in that: The moving mechanism (3) comprises a reinforcement frame (31), the reinforcement frame (31) is fixedly mounted on the outer wall of the water storage tank (1), a support arm (32) is fixedly mounted on the bottom of the reinforcement frame (31), and a slide rod (33) is slidably connected to the inner wall of the support arm (32).

5. The device for utilizing waste heat from an aerated concrete autoclave according to claim 4, characterized in that: A lower support seat (34) is fixedly mounted on the bottom of the slide bar (33), an elastic member (35) is fixedly mounted on the top of the lower support seat (34), and the top of the elastic member (35) is fixedly connected to the bottom of the support arm (32).

6. The device for utilizing waste heat from an aerated concrete autoclave according to claim 5, characterized in that: A universal wheel (36) is arranged at the bottom of the lower support seat (34), and a protruding block (37) is fixedly mounted on the outer wall of the lower support seat (34).

7. The device for utilizing waste heat from an aerated concrete autoclave according to claim 6, characterized in that: The top of the raised block (37) is threadedly connected to a threaded rod (38), and the threaded end of the threaded rod (38) extends to the bottom of the raised block (37) and is rotatably connected to a supporting circular pad.

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