Efficient waste heat recovery heat exchanger

Abstract

The utility model discloses an efficient waste heat recovery heat exchanger which comprises a waste heat recovery box body, a filter plate is connected to one side in the waste heat recovery box body in a clamped mode, a top plate is fixedly connected to the top of the filter plate, an air cylinder is fixedly connected to the top of the top plate, and the output end of the air cylinder is fixedly connected with a scraping plate. A collecting tank is arranged at the lower end of the interior of the filter plate, baffles are symmetrically and fixedly connected to the interior of the waste heat recovery box body, a first heat exchange pipe and a second heat exchange pipe are arranged between the two baffles, and in the using process, an air cylinder pushes a scraping plate to move up and down, so that impurities filtered on one side of a filter screen are scraped by the scraping plate, and the impurities fall into the collecting tank; impurities in the waste gas are effectively filtered, the situation that the impurities in the waste gas are used for a long time, so that the first heat exchange pipe and the second heat exchange pipe are blocked, and heat recovery is affected is prevented, the filter plate is regularly disassembled to clean the collecting tank, and the service life of the first heat exchange pipe and the second heat exchange pipe is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchangers, and in particular relates to a high-efficiency waste heat recovery heat exchanger. Background Art

[0002] A heat exchanger is a device that transfers heat between fluids and is widely used in heating, cooling, evaporation, condensation and other processes. It achieves the desired heat treatment effect by allowing the fluid to flow in the shell and exchanging heat through a tube bundle or plate structure. Heat exchangers play an important role in chemical, petroleum, power, food and many other industrial productions. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are widely used. In social production, high-temperature exhaust gas is often generated and needs to be discharged. The exhaust gas has high-temperature energy and is directly discharged into the air, which is easy to increase the ambient temperature. At the same time, the exhaust gas contains large particles of impurities that are easy to cause pollution, and the exhaust gas needs to be treated.

[0003] In the prior art, there is no structure for filtering impurities in the exhaust gas during the heat exchange process, and the filter is not easy to clean, which increases the cost of use. As a result, when the exhaust gas enters the heat exchange tube, it is easy to cause blockage to the heat exchange tube, thereby affecting the service life of the heat exchange tube. The filtered gas is directly discharged after completing the heat conversion, and the harmful gas in the exhaust gas will affect the external environment. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a high-efficiency waste heat recovery heat exchanger to solve the problem that in the prior art proposed in the above background technology, there is no impurity filtering structure in the exhaust gas during the heat exchange process, and the filter is not easy to clean, which increases the cost of use. As a result, when the exhaust gas enters the inside of the heat exchange tube, it is easy to cause blockage to the heat exchange tube, thereby affecting the service life of the heat exchange tube. The filtered gas is directly discharged after completing the heat conversion, and the harmful gas in the exhaust gas will affect the external environment.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a high-efficiency waste heat recovery heat exchanger, comprising a waste heat recovery box, a filter plate is snap-connected on one side of the interior of the waste heat recovery box, a top plate is fixedly connected to the top of the filter plate, a cylinder is fixedly connected to the top of the top plate, a scraper is fixedly connected to the output end of the cylinder, a collecting tank is provided at the lower end of the filter plate, a baffle is symmetrically fixedly connected to the interior of the waste heat recovery box, a first heat exchange tube and a second heat exchange tube are respectively provided between the two baffles, adsorption cotton is provided on one side of the baffle, an electric push rod is fixedly connected to the upper end of the interior of the waste heat recovery box, a pressure plate is fixedly connected to one end of the electric push rod, and a liquid storage tank is fixedly connected to the top of the waste heat recovery box.

[0006] Preferably, flanges are symmetrically fixedly connected at both ends of the waste heat recovery box, an air inlet is arranged inside one of the flanges, an air outlet is arranged inside the other flange, and a circular fixing hole is arranged inside the flanges.

[0007] Preferably, a temperature display is fixedly connected to one side of the waste heat recovery box, a sealing gasket is fixedly connected to the bottom of the top plate, and a filter screen is fixedly connected to the inside of the filter plate.

[0008] Preferably, the upper end of the interior of the baffle is symmetrically provided with connecting holes, the connecting hole and the first heat exchange tube are fixedly connected, and the connecting hole and the second heat exchange tube are fixedly connected.

[0009] Preferably, the first heat exchange tube is fixedly connected to the waste heat recovery box through a support column.

[0010] Preferably, the upper end of the interior of the waste heat recovery box is fixedly connected with a water inlet pipe, the lower end of the interior of the waste heat recovery box is fixedly connected with a water outlet pipe, and valves are provided on the outsides of the water inlet pipe and the water outlet pipe.

[0011] Preferably, a water pump is fixedly connected to one side of the liquid storage tank, a connecting pipe is fixedly connected inside the water pump, and the connecting pipe and the waste heat recovery box are fixedly connected.

[0012] Preferably, one end of the bottom of the waste heat recovery box is fixedly connected with a sewage pipe.

[0013] Compared with the prior art, the utility model provides a high-efficiency waste heat recovery heat exchanger, which has the following beneficial effects:

[0014] 1. The utility model provides a filter plate, and the filter plate is snap-connected with the waste heat recovery box, which is convenient for installation and disassembly of the filter plate, and is convenient for maintenance and replacement of the filter plate. During use, the cylinder pushes the scraper to move up and down, so that the scraper scrapes off the impurities filtered on one side of the filter and drops them into the collecting tank, effectively filtering the impurities in the exhaust gas, preventing the first heat exchange tube and the second heat exchange tube from being blocked by impurities in the exhaust gas due to long-term use, affecting heat recovery, and regularly dismantling the filter plate to clean the collecting tank to increase the service life of the first heat exchange tube and the second heat exchange tube. The first heat exchange tube and the second heat exchange tube simultaneously convert heat, which is convenient for heat exchange between high-temperature exhaust gas and water inside the waste heat recovery box, and cooling the high-temperature exhaust gas by water. At the same time, it is convenient to heat the water by the high-temperature exhaust gas, thereby improving the heat recovery efficiency.

[0015] 2. The utility model sets adsorbent cotton and a liquid storage tank, starts the water pump to let the disinfectant in the liquid storage tank flow into the adsorbent cotton through the connecting pipe, the adsorbent cotton adsorbs impurities and odors in the exhaust gas, disinfects and purifies the exhaust gas, and then the electric push rod pushes the pressure plate downward to squeeze the adsorbent cotton, discharge the sewage in the adsorbent cotton, and reduce the impact of the discharged gas on the external environment.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the axonometric structure of one side of a high-efficiency waste heat recovery heat exchanger proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the axonometric structure of the other side of a high-efficiency waste heat recovery heat exchanger proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the filter plate structure of a high-efficiency waste heat recovery heat exchanger proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the first heat exchange tube of a high-efficiency waste heat recovery heat exchanger proposed by the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the second heat exchange tube of a high-efficiency waste heat recovery heat exchanger proposed by the utility model;

[0023] Figure 6 This is a schematic diagram of the internal structure of a high-efficiency waste heat recovery heat exchanger proposed by the utility model;

[0024] In the figure: waste heat recovery box 1, flange 2, air inlet 3, air outlet 4, fixing hole 5, temperature display 6, filter plate 7, top plate 8, sealing gasket 9, filter screen 10, cylinder 11, scraper 12, collecting tank 13, baffle 14, connecting hole 15, first heat exchange tube 16, support column 17, second heat exchange tube 18, water inlet pipe 19, water outlet pipe 20, valve 21, adsorption cotton 22, electric push rod 23, pressure plate 24, liquid storage tank 25, water pump 26, connecting pipe 27, sewage pipe 28. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The utility model provides a technical solution: a high-efficiency waste heat recovery heat exchanger, including a waste heat recovery box 1, a filter plate 7 is connected to one side of the waste heat recovery box 1, a top plate 8 is fixedly connected to the top of the filter plate 7, a cylinder 11 is fixedly connected to the top of the top plate 8, a scraper 12 is fixedly connected to the output end of the cylinder 11, a collecting tank 13 is arranged at the lower end of the filter plate 7, a baffle 14 is symmetrically fixedly connected to the inside of the waste heat recovery box 1, a first heat exchange tube 16 and a second heat exchange tube 18 are respectively arranged between the two baffles 14, the filter plate 7 is connected to the waste heat recovery box 1 by a clamping connection, the filter plate 7 is convenient for installation and disassembly, and the filter plate 7 is convenient for maintenance and replacement. During use, the cylinder 11 pushes the scraper 12 to move up and down, so that the scraper 12 scrapes off the impurities filtered on one side of the filter screen 10 and drops them into the collecting tank 1 3, impurities in the exhaust gas are effectively filtered to prevent the first heat exchange tube 16 and the second heat exchange tube 18 from being blocked by impurities in the exhaust gas due to long-term use, affecting heat recovery. The filter plate 7 is regularly disassembled to clean the collecting tank 13 to improve the service life of the first heat exchange tube 16 and the second heat exchange tube 18. The first heat exchange tube 16 and the second heat exchange tube 18 simultaneously convert heat to facilitate heat exchange between the high-temperature exhaust gas and the water inside the waste heat recovery box 1, and the high-temperature exhaust gas is cooled by water. At the same time, it is convenient to heat the water by the high-temperature exhaust gas, thereby improving the heat recovery efficiency. An adsorption cotton 22 is arranged on one side of the baffle 14, and an electric push rod 23 is fixedly connected to the upper end of the waste heat recovery box 1, and a pressure plate 24 is fixedly connected to one end of the electric push rod 23. A liquid storage tank 25 is fixedly connected to the top of the waste heat recovery box 1.

[0027] In the utility model, preferably, flanges 2 are symmetrically fixedly connected at both ends of the waste heat recovery box 1, an air inlet 3 is arranged inside one flange 2, an air outlet 4 is arranged inside the other flange 2, and a circular fixing hole 5 is arranged inside the flange 2.

[0028] In the present utility model, preferably, a temperature display 6 is fixedly connected to one side of the waste heat recovery box 1, a sealing gasket 9 is fixedly connected to the bottom of the top plate 8, and a filter screen 10 is fixedly connected to the inside of the filter plate 7.

[0029] In the present invention, preferably, the upper end of the baffle 14 is symmetrically provided with connecting holes 15 , the connecting holes 15 and the first heat exchange tube 16 are fixedly connected, and the connecting holes 15 and the second heat exchange tube 18 are fixedly connected.

[0030] In the present invention, preferably, the first heat exchange tube 16 is fixedly connected to the waste heat recovery box 1 through a support column 17 .

[0031] In the present invention, preferably, the upper end of the waste heat recovery box 1 is fixedly connected with a water inlet pipe 19, the lower end of the waste heat recovery box 1 is fixedly connected with a water outlet pipe 20, and valves 21 are provided on the outside of the water inlet pipe 19 and the water outlet pipe 20.

[0032] In the utility model, preferably, a water pump 26 is fixedly connected to one side of the liquid storage tank 25, and a connecting pipe 27 is fixedly connected inside the water pump 26. The connecting pipe 27 and the waste heat recovery box 1 are fixedly connected. By starting the water pump 26, the disinfectant in the liquid storage tank 25 flows into the adsorption cotton 22 through the connecting pipe 27. The adsorption cotton 22 adsorbs impurities and odors in the exhaust gas to disinfect and purify the exhaust gas. Then the electric push rod 23 pushes the pressure plate 24 downward to squeeze the adsorption cotton 22, discharge the sewage in the adsorption cotton 22, and reduce the impact of the discharged gas on the external environment.

[0033] In the present invention, preferably, one end of the bottom of the waste heat recovery box 1 is fixedly connected with a sewage pipe 28.

[0034] The working principle and use process of the utility model are as follows: when in use, first connect the waste heat recovery box 1 to the external pipe through the flange 2, and then the exhaust gas enters the waste heat recovery box 1 through the air inlet 3. The filter screen 10 in the filter plate 7 filters the impurities in the exhaust gas. The filter plate 7 is snap-connected with the waste heat recovery box 1, which is convenient for installing and disassembling the filter plate 7, and convenient for repairing and replacing the filter plate 7. During use, the cylinder 11 pushes the scraper 12 to move up and down, so that the scraper 12 scrapes off the impurities filtered on one side of the filter screen 10 and drops them into the collection tank 13, effectively filtering the impurities in the exhaust gas, preventing the impurities in the exhaust gas from being blocked by the first heat exchange tube 16 and the second heat exchange tube 18 due to long-term use, affecting heat recovery, and regularly disassembling the filter plate 7 to clean the collection tank 1 3 is cleaned to improve the service life of the first heat exchange tube 16 and the second heat exchange tube 18. After filtering, the first heat exchange tube 16 and the second heat exchange tube 18 simultaneously convert heat, which is convenient for heat exchange between the high-temperature exhaust gas and the water inside the waste heat recovery box 1, and the high-temperature exhaust gas is cooled by water. At the same time, it is convenient to heat the water by the high-temperature exhaust gas, thereby improving the heat recovery efficiency. Then, by starting the water pump 26, the disinfectant in the liquid storage tank 25 flows into the adsorption cotton 22 through the connecting pipe 27. The adsorption cotton 22 adsorbs impurities and odors in the exhaust gas, disinfects and purifies the exhaust gas, and then the electric push rod 23 pushes the pressing plate 24 downward to squeeze the adsorption cotton 22, discharge the sewage in the adsorption cotton 22, and reduce the impact of the discharged gas on the external environment.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency waste heat recovery heat exchanger, comprising a waste heat recovery box (1), characterized in that: A filter plate (7) is snap-connected to one side of the waste heat recovery box (1), a top plate (8) is fixedly connected to the top of the filter plate (7), a cylinder (11) is fixedly connected to the top of the top plate (8), a scraper (12) is fixedly connected to the output end of the cylinder (11), a collecting tank (13) is arranged at the lower end of the filter plate (7), a baffle (14) is symmetrically fixedly connected to the inside of the waste heat recovery box (1), a first heat exchange tube (16) and a second heat exchange tube (18) are respectively arranged between the two baffles (14), an adsorption cotton (22) is arranged on one side of the baffle (14), an electric push rod (23) is fixedly connected to the upper end of the waste heat recovery box (1), one end of the electric push rod (23) is fixedly connected to a pressure plate (24), and a liquid storage tank (25) is fixedly connected to the top of the waste heat recovery box (1).

2. The high-efficiency waste heat recovery heat exchanger according to claim 1, characterized in that: Flanges (2) are symmetrically fixedly connected at both ends of the waste heat recovery box (1); an air inlet (3) is arranged inside one of the flanges (2); an air outlet (4) is arranged inside the other flange (2); and a fixing hole (5) is arranged in a circular shape inside the flange (2).

3. The high-efficiency waste heat recovery heat exchanger according to claim 1 is characterized in that: A temperature display (6) is fixedly connected to one side of the waste heat recovery box (1), a sealing gasket (9) is fixedly connected to the bottom of the top plate (8), and a filter screen (10) is fixedly connected inside the filter plate (7).

4. The high-efficiency waste heat recovery heat exchanger according to claim 1, characterized in that: A connection hole (15) is symmetrically arranged at the upper end of the interior of the baffle (14); the connection hole (15) and the first heat exchange tube (16) are fixedly connected, and the connection hole (15) and the second heat exchange tube (18) are fixedly connected.

5. The high-efficiency waste heat recovery heat exchanger according to claim 1, characterized in that: The first heat exchange tube (16) is fixedly connected to the waste heat recovery box (1) via a support column (17).

6. The high-efficiency waste heat recovery heat exchanger according to claim 1, characterized in that: The upper end of the waste heat recovery box (1) is fixedly connected to a water inlet pipe (19), and the lower end of the waste heat recovery box (1) is fixedly connected to a water outlet pipe (20), and valves (21) are provided on the outside of the water inlet pipe (19) and the water outlet pipe (20).

7. The high-efficiency waste heat recovery heat exchanger according to claim 1, characterized in that: A water pump (26) is fixedly connected to one side of the liquid storage tank (25), a connecting pipe (27) is fixedly connected inside the water pump (26), and the connecting pipe (27) and the waste heat recovery box (1) are fixedly connected.

8. The high-efficiency waste heat recovery heat exchanger according to claim 1, characterized in that: One end of the bottom of the waste heat recovery box (1) is fixedly connected to a sewage pipe (28).

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