Chemical waste gas waste heat recovery device convenient to maintain

Abstract

The utility model provides a chemical waste gas waste heat recovery device convenient to maintain, which comprises a waste gas smoke pipe, a waste heat collection pipe, an extraction valve, a detachable outer plate, a movable bolt, a dust cleaning assembly, a treatment tank, a collection pipe inner wall, a bracket, a recovery box, a heat exchanger and a heat conduction pipe, an extraction valve is arranged at the top of the waste heat collecting pipe, the bottom of the detachable outer plate is installed on the surface of the waste heat collecting pipe through a movable bolt, the dust cleaning assembly is assembled in the waste heat collecting pipe, the left side of the dust cleaning assembly is connected with the heat exchanger, a plurality of heat conduction pipes are further installed on the heat exchanger, and the processing groove is formed in the bottom of the waste heat collecting pipe. Particle impurities in waste gas can be effectively cleaned, the heat transfer efficiency during waste heat recovery is guaranteed, personnel maintenance can be facilitated, and the maintenance difficulty is reduced.

Description

Technical Field

[0001] The utility model discloses a chemical waste gas waste heat recovery device which is easy to maintain and belongs to the technical field of waste gas waste heat recovery devices. Background Art

[0002] In chemical production, the treatment of chemical waste gas is an important part of chemical production. Chemical waste gas not only contains particulate impurities, but also carries a large amount of heat. If it is directly discharged into the atmosphere, it will not only cause a large amount of energy waste but also aggravate the thermal pollution of the environment. Therefore, before the chemical waste gas is discharged, it needs to be treated with waste heat recovery. Waste heat recovery is to recycle the wasted heat energy. It is one of the most direct and economical means to improve energy utilization, reduce production costs and protect the environment.

[0003] Although the current waste heat recovery device can meet certain usage requirements, the particulate impurities in the chemical waste gas often adhere to the heat transfer surface. With long-term use, as the amount of particulate impurities attached increases, the heat transfer efficiency is greatly weakened, and maintenance is required to remove surface impurities. Each maintenance requires the device to be disassembled and shut down, affecting production and wasting manpower. Therefore, there is still room for improvement. For this reason, there is an urgent need for an easy-to-maintain chemical waste gas waste heat recovery device to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a chemical waste gas waste heat recovery device that is easy to maintain, so as to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure, simple operation and easy use. It can not only effectively clean up the particulate impurities in the waste gas and ensure the heat transfer efficiency during waste heat recovery, but also facilitate maintenance by personnel and reduce the difficulty of maintenance.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a chemical waste gas waste heat recovery device that is easy to maintain, including a waste gas smoke pipe, a waste heat collection pipe, an extraction valve, a disassembled outer plate, a movable bolt, a dust cleaning component, a processing tank, an inner wall of the collection pipe, a bracket, a recovery box, a heat exchanger and a heat conduction pipe, the waste gas smoke pipe is connected to the right side of the waste heat collection pipe, and the top of the waste heat collection pipe is provided with an extraction valve, the bottom of the disassembled outer plate is installed on the surface of the waste heat collection pipe by providing a movable bolt, the dust cleaning component is assembled inside the waste heat collection pipe, and the left side of the dust cleaning component is connected to the heat exchanger, The heat exchanger is also equipped with multiple heat conduction pipes, the treatment tank is opened at the bottom of the waste heat collection pipe, the dust cleaning assembly includes a transfer rod, a connecting rod, an external shaft, fixing bolts, scrapers, a mounting sleeve, fan blades and a drive motor, the drive motor is installed on the right side of the transfer rod, and the drive motor is fixed on the bracket, the multiple fan blades are fixedly connected to the drive motor, the mounting sleeve is assembled on the left side of the transfer rod, and connecting rods are provided at both ends of the mounting sleeve, a scraper is added to the connecting rod, the external shaft is set on the left side of the transfer rod, and the left side of the external shaft is connected to the heat exchanger.

[0006] Furthermore, the scraper is made of a hard plastic plate, and the scraper is in close contact with the inner wall of the collection tube.

[0007] Furthermore, a plurality of tiny holes are formed on the surface of the fan blade mounted on the driving motor.

[0008] Furthermore, the mounting sleeve on the transmission rod and the connecting rod are connected and fixed by fixing bolts.

[0009] Furthermore, the movable bolts for removing the bottom of the outer panel are divided into a large one in the middle and small ones on the left and right sides.

[0010] Furthermore, the size of the recovery box conforms to the size of the processing tank.

[0011] The beneficial effects of the utility model: the utility model is a waste heat recovery device for chemical waste gas which is easy to maintain. Because the utility model adds a processing tank, a recovery box, a transfer rod, a connecting rod, a scraper, a fan blade and a driving motor, and by adding a recovery box in the processing tank at the bottom of the waste heat collection pipe, it is helpful to collect the particulate impurities scraped off by the scraper, which is convenient for cleaning. By using the driving motor to drive the fan blade to rotate, it helps to speed up the circulation of chemical waste gas in the waste heat collection pipe and improve the waste heat conversion efficiency. Using the scraper to scrape off the particulate impurities on the inner wall of the collection pipe helps to improve the heat transfer efficiency, ensure normal use, and reduce the difficulty of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure of a chemical waste gas waste heat recovery device that is easy to maintain in the utility model;

[0014] Figure 2 This is a schematic diagram of the expanded structure of a chemical waste gas waste heat recovery device that is easy to maintain according to the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of a chemical waste gas waste heat recovery device that is easy to maintain in the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of a dust cleaning component of a chemical waste gas waste heat recovery device that is easy to maintain in the utility model;

[0017] In the figure: 1-waste gas smoke pipe, 2-waste heat collection pipe, 3-extraction valve, 4-disassembly outer plate, 5-movable bolt, 6-dust cleaning component, 7-treatment tank, 8-inner wall of collection pipe, 9-bracket, 10-recovery box, 11-heat exchanger, 12-heat conduction pipe, 61-transmission rod, 62-connecting rod, 63-external shaft, 64-fixing bolt, 65-scraper, 66-mounting sleeve, 67-fan blade, 68-drive motor. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figure 1-Figure 4The utility model provides a technical solution: a chemical waste gas waste heat recovery device that is easy to maintain, including a waste gas smoke pipe 1, a waste heat collection pipe 2, an extraction valve 3, a disassembled outer plate 4, a movable bolt 5, a dust cleaning component 6, a processing tank 7, an inner wall of the collection pipe 8, a bracket 9, a recovery box 10, a heat exchanger 11 and a heat conduction pipe 12, the waste gas smoke pipe 1 is connected to the right side of the waste heat collection pipe 2, and the top of the waste heat collection pipe 2 is provided with an extraction valve 3, the bottom of the disassembled outer plate 4 is installed on the surface of the waste heat collection pipe 2 by setting a movable bolt 5, the dust cleaning component 6 is assembled inside the waste heat collection pipe 2, and the left side of the dust cleaning component 6 is connected to the heat exchanger 11, and a plurality of heat conduction components 11 are also installed on the heat exchanger 11 Tube 12, the processing tank 7 is opened at the bottom of the waste heat collection tube 2, the dust cleaning component 6 includes a transfer rod 61, a connecting rod 62, an external shaft 63, a fixing bolt 64, a scraper 65, a mounting sleeve 66, a fan blade 67 and a drive motor 68. The drive motor 68 is installed on the right side of the transfer rod 61, and the drive motor 68 is fixed on the bracket 9. A plurality of fan blades 67 are fixedly connected to the drive motor 68. The mounting sleeve 66 is assembled on the left side of the transfer rod 61, and connecting rods 62 are provided at both ends of the mounting sleeve 66. A scraper 65 is added to the connecting rod 62. The external shaft 63 is arranged on the left side of the transfer rod 61, and the left side of the external shaft 63 is connected to the heat exchanger 11.

[0020] As the first embodiment of the utility model: the size of the recovery box 10 is consistent with the size of the processing tank 7. The design adds a recovery box 10 in the processing tank 7 at the bottom of the waste heat collection pipe 2, which is helpful to collect the particulate impurities scraped by the scraper 65 for easy cleaning. The movable bolt 5 at the bottom of the disassembled outer panel 4 is divided into a large one in the middle and a small one on the left and right sides. The design fixes the disassembled outer panel 4 by setting movable bolts 5 of different sizes, which is helpful to ensure the connection firmness of the disassembled outer panel 4. The mounting sleeve 66 on the transfer rod 61 is connected and fixed to the connecting rod 62 by a fixing bolt 64. The design has a simple structure and is connected by a fixing bolt 64 for easy disassembly. The surface of the fan blade 67 installed on the drive motor 68 is provided with a plurality of small holes. The design opens a plurality of holes 67 on the fan blade 67, which is helpful to the circulation efficiency of the exhaust gas. The scraper 65 is made of a hard plastic plate, and the scraper 65 is close to the inner wall 8 of the collection pipe. The design scrapes the particulate impurities against the inner wall 8 of the collection pipe by setting up the scraper 65, which is helpful to improve the heat transfer efficiency and reduce maintenance.

[0021] As a second embodiment of the utility model: chemical waste gas is discharged into the waste heat collection pipe 2 through the waste gas smoke pipe 1, and the fan blade 67 and the transfer rod 61 are driven by the driving motor 68 to rotate. The fan blade 67 forms a gravitational force from right to left to help the chemical waste gas enter the waste heat collection pipe 2. The heat exchanger 11 inside the waste heat collection pipe 2 absorbs the heat energy in the chemical waste gas through the heat conduction pipe 12 for conversion, and the particulate impurities in the chemical waste gas are attached to the inner wall 8 of the collection pipe with the blowing of the wind. Since an external shaft 63 is provided between the transfer rod 61 and the heat exchanger 11, The transfer rod 61 will rotate with the scraper 65 connected to the mounting sleeve 66, and the scraper 65 will cling to the inner wall 8 of the collection tube to scrape off the particulate impurities and scrape them into the processing tank 7. A recovery box 10 is placed in the processing tank 7, so that the scraped particulate impurities will be collected by the recovery box 10. After a period of time, when the staff maintains the exhaust gas waste heat recovery device or cleans the recovery box 10, they will turn off the exhaust gas waste heat recovery device, use the movable bolt 5 on the disassembled outer panel 4 to open the disassembled outer panel 4, then take out the recovery box 10 to clean the particulate impurities and put it back.

[0022] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A chemical waste gas waste heat recovery device that is easy to maintain, comprising a waste gas smoke pipe (1), a waste heat collection pipe (2), an extraction valve (3), a disassembly outer plate (4), a movable bolt (5), a dust cleaning component (6), a treatment tank (7), an inner wall of the collection pipe (8), a bracket (9), a recovery box (10), a heat exchanger (11) and a heat conduction pipe (12), characterized in that: The exhaust gas smoke pipe (1) is connected to the right side of the waste heat collection pipe (2), and an extraction valve (3) is arranged on the top of the waste heat collection pipe (2); the bottom of the disassembled outer plate (4) is installed on the surface of the waste heat collection pipe (2) by arranging a movable bolt (5); the dust cleaning component (6) is assembled inside the waste heat collection pipe (2), and the left side of the dust cleaning component (6) is connected to the heat exchanger (11); a plurality of heat conduction pipes (12) are also installed on the heat exchanger (11); and the treatment tank (7) is opened at the bottom of the waste heat collection pipe (2); The dust cleaning assembly (6) comprises a transmission rod (61), a connecting rod (62), an external shaft (63), a fixing bolt (64), a scraper (65), a mounting sleeve (66), a fan blade (67) and a driving motor (68). The driving motor (68) is mounted on the right side of the transmission rod (61), and the driving motor (68) is fixed on the bracket (9). The plurality of fan blades (67) are fixedly connected to the driving motor (68). The mounting sleeve (66) is assembled on the left side of the transmission rod (61), and the mounting sleeve (66) is provided with a connecting rod (62) at both the upper and lower ends. The connecting rod (62) is provided with a scraper (65). The external shaft (63) is arranged on the left side of the transmission rod (61), and the left side of the external shaft (63) is connected to the heat exchanger (11).

2. The chemical waste gas waste heat recovery device that is easy to maintain according to claim 1 is characterized by: The size of the recovery box (10) matches the size of the processing tank (7).

3. The chemical waste gas waste heat recovery device that is easy to maintain according to claim 1 is characterized by: The movable bolt (5) at the bottom of the disassembly outer plate (4) is divided into a large one in the middle and small ones on the left and right sides.

4. The chemical waste gas waste heat recovery device that is easy to maintain according to claim 1 is characterized by: The mounting sleeve (66) on the transmission rod (61) and the connecting rod (62) are connected and fixed by means of fixing bolts (64).

5. The chemical waste gas waste heat recovery device that is easy to maintain according to claim 1 is characterized by: The surface of the fan blade (67) mounted on the driving motor (68) is provided with a plurality of tiny holes.

6. The chemical waste gas waste heat recovery device that is easy to maintain according to claim 1 is characterized by: The scraper (65) is made of a hard plastic plate, and the scraper (65) is in close contact with the inner wall (8) of the collection tube.

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