Efficient heat exchanger

Abstract

The utility model discloses an efficient heat exchanger, which belongs to the technical field of heat exchangers and comprises a protection box, a supporting seat is arranged at the bottom of the protection box, a protection door is arranged on the surface of the protection box, a heat exchange box is arranged in the protection box, a temperature detection component is arranged on the surface of the heat exchange box, and a heat exchange tube is arranged in the heat exchange box. One end of the heat exchange pipe is connected with a gas conveying and filtering assembly, a descaling assembly is arranged on one side of the heat exchange box, and a filtering assembly is arranged at a drainage pipe of the heat exchange box. By arranging the descaling assembly, when the interior of the heat exchange box needs to be descaled, the conveying pump is started to pump a diluted hydrochloric acid descaling agent into the heat exchange box, and then the aeration assembly is started to enable water in the heat exchange box to be turned over, so that the water in the heat exchange box can be completely mixed with the diluted hydrochloric acid descaling agent; and then scale in the heat exchange box can be dissolved after being soaked in the diluted hydrochloric acid descaling agent, so that the situation that the scale is condensed on the surface of the heat exchange pipe to affect heat exchange is avoided.

Description

A high-efficiency heat exchanger Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, and specifically relates to a high-efficiency heat exchanger. Background Technology

[0002] A heat exchanger is an energy-saving device that enables heat transfer between two or more fluids at different temperatures. It transfers heat from a higher-temperature fluid to a lower-temperature fluid, allowing the fluid temperature to reach the specified parameters of the process to meet the requirements of the process conditions. It is also one of the main devices for improving energy utilization efficiency.

[0003] Chinese Patent Publication No. CN211400231U discloses a waste heat recovery device for air conditioning heating, including a base and a protective shell. The protective shell is mounted on top of the base, and a heat collection cylinder is mounted on the bottom surface inside the protective shell. A heat exchange tube is mounted inside the heat collection cylinder via a mounting frame. The inner wall of the protective shell is respectively covered with an asbestos insulation layer and a polyurethane foam insulation layer. A connected temperature measuring chamber is mounted on one side of the heat collection cylinder, and a thermometer extending into the chamber is mounted on the top of the chamber. An installation cavity is mounted on top of the protective shell, containing a first installation chamber and a second installation chamber. A fan is installed in the first installation chamber. This invention, with its protective shell using asbestos and polyurethane foam insulation layers, ensures both heat recovery and heat concentration and insulation. The temperature measuring chamber uses a thermometer to monitor the recovered temperature inside the device in real time.

[0004] The aforementioned patents have the following problems: scale will form inside the heat exchanger after prolonged use, and the scale will condense on the surface of the heat exchange tubes, thus affecting heat exchange; impurities will form inside the heat exchange box after prolonged use, and these impurities will be discharged with the water when draining, thus affecting water quality. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides a high-efficiency heat exchanger that can treat scale buildup inside the heat exchange tank and filter the water after heat exchange.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency heat exchanger, including a protective box, a support base at the bottom of the protective box, a protective door on the surface of the protective box, a heat exchange box inside the protective box, a temperature detection component on the surface of the heat exchange box, a heat exchange tube inside the heat exchange box, a gas delivery filter component connected to one end of the heat exchange tube, a descaling component on one side of the heat exchange box, and a filter component at the drain pipe of the heat exchange box.

[0007] Preferably, the descaling assembly includes a storage tank, an aeration assembly, a dosing port, an observation window, a delivery pump, a delivery pipe, and an anti-corrosion plate. The aeration assembly is installed inside the heat exchange tank, a delivery pipe is installed on one side of the heat exchange tank, one end of the delivery pipe is connected to the delivery pump, the storage tank is installed above the delivery pump, an observation window is installed on the surface of the storage tank, a dosing port is installed on the top of the storage tank, and an anti-corrosion plate is installed on the inner wall of the storage tank.

[0008] Preferably, the aeration assembly includes an air pump, an air supply pipe, an air channel, and an aeration head. The heat exchange box has an air channel inside, an aeration head is installed above the air channel, an air supply pipe is connected to one side of the air channel, and an air pump is connected to one end of the air supply pipe.

[0009] Preferably, one end of the aeration head is provided with a threaded connector, and the aeration head is connected to the air channel through the threaded connector.

[0010] Preferably, the filtration assembly includes a filter cylinder, a filter cylinder cover, a water outlet, a filter screen, activated carbon, an installation groove, filter cotton, and a filter element. The filter cylinder is installed at the drain pipe of the heat exchanger. A filter cylinder cover is installed at one end of the filter cylinder, and a water outlet is installed in the middle of the filter cylinder cover. An installation groove is provided inside the filter cylinder, and a filter element is installed in the middle of the installation groove. A filter screen is installed inside the filter element, activated carbon is placed between the filter screens, and filter cotton is also placed between the filter screens.

[0011] Preferably, the bottom of the filter element has a through hole, and a sealing ring is provided at the connection between the filter cylinder and the filter cylinder cover.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, by setting up a descaling component, when it is necessary to descale the inside of the heat exchange box, turns on the delivery pump to draw dilute hydrochloric acid descaling agent into the heat exchange box, and then turns on the aeration component to make the water in the heat exchange box churn so that the water in the heat exchange box can be completely mixed with the dilute hydrochloric acid descaling agent. After that, the scale in the heat exchange box will dissolve after being soaked in the dilute hydrochloric acid descaling agent, thereby preventing scale from condensing on the surface of the heat exchange tube and affecting heat exchange.

[0014] 2. This utility model incorporates a filtration assembly. A filter cartridge is installed at the drain pipe of the heat exchange box. During drainage, the water after heat exchange passes through the filter cartridge, which contains filter cotton, activated carbon, and a filter screen. This allows the discharged water to be filtered, removing impurities and harmful substances and improving water quality. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the structure of this utility model;

[0016] Figure 2 is a cross-sectional view of the structure of this utility model;

[0017] Figure 3 is a cross-sectional view of the storage box of this utility model;

[0018] Figure 4 is a schematic diagram of the aeration component of this utility model;

[0019] Figure 5 is a cross-sectional view of the filter component of this utility model.

[0020] In the diagram: 1. Protective box; 2. Descaling assembly; 21. Storage tank; 22. Aeration assembly; 23. Dosing port; 24. Observation window; 25. Transfer pump; 26. Transfer pipe; 27. Anti-corrosion plate; 221. Air pump; 222. Air supply pipe; 223. Air channel; 224. Aeration head; 3. Gas delivery and filtration assembly; 4. Protective door; 5. Support base; 6. Filtration assembly; 61. Filter cartridge; 62. Filter cartridge cover; 63. Water outlet; 64. Filter screen; 65. Activated carbon; 66. Installation groove; 67. Filter cotton; 68. Filter element; 7. Heat exchange tube; 8. Heat exchange box; 9. Temperature detection assembly. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please refer to Figures 1-5. This utility model provides the following technical solution: a high-efficiency heat exchanger, including a protective box 1, a support base 5 at the bottom of the protective box 1, a protective door 4 on the surface of the protective box 1, a heat exchange box 8 inside the protective box 1, a temperature detection component 9 on the surface of the heat exchange box 8, a heat exchange tube 7 inside the heat exchange box 8, a gas delivery filter component 3 connected to one end of the heat exchange tube 7, a descaling component 2 on one side of the heat exchange box 8, and a filter component 6 at the drain pipe of the heat exchange box 8.

[0024] Specifically, the descaling component 2 includes a storage tank 21, an aeration component 22, a dosing port 23, an observation window 24, a delivery pump 25, a delivery pipe 26, and an anti-corrosion plate 27. The aeration component 22 is installed inside the heat exchange box 8. The delivery pipe 26 is installed on one side of the heat exchange box 8. One end of the delivery pipe 26 is connected to the delivery pump 25. The storage tank 21 is installed above the delivery pump 25. The observation window 24 is installed on the surface of the storage tank 21. The dosing port 23 is installed on the top of the storage tank 21. The anti-corrosion plate 27 is installed on the inner wall of the storage tank 21.

[0025] By adopting the above technical solution, dilute hydrochloric acid descaling agent is added to the storage tank 21 through the dosing port 23. When it is necessary to descale the inside of the heat exchange box 8, water is injected into the heat exchange box 8, and the delivery pump 25 is turned on to extract the dilute hydrochloric acid descaling agent in the storage tank 21. After extraction, the dilute hydrochloric acid descaling agent is delivered into the heat exchange box 8 through the delivery pipe 26. Then, the aeration component 22 is turned on to make the water in the heat exchange box 8 churn, so that the water can be completely mixed with the dilute hydrochloric acid descaling agent. Afterwards, the scale in the heat exchange box 8 will dissolve after being soaked in the dilute hydrochloric acid descaling agent. Since the inner wall of the storage tank 21 is provided with an anti-corrosion plate 27, the dilute hydrochloric acid descaling agent can be prevented from corroding the storage tank 21.

[0026] Specifically, the aeration assembly 22 includes an air pump 221, an air supply pipe 222, an air channel 223, and an aeration head 224. The heat exchange box 8 is provided with an air channel 223 inside, and an aeration head 224 is provided above the air channel 223. An air supply pipe 222 is connected to one side of the air channel 223, and an air pump 221 is connected to one end of the air supply pipe 222.

[0027] By adopting the above technical solution, the exhaust port above the heat exchange box 8 is opened, and the air pump 221 is turned on to draw in the outside air. After the air is drawn in, the air supply pipe 222 will deliver it into the air channel 223, and then spray it out from the aeration head 224 to make the water in the heat exchange box 8 churn, so that the water can be completely mixed with the dilute hydrochloric acid descaling agent.

[0028] Specifically, one end of the aeration head 224 is provided with a threaded connector, and the aeration head 224 is connected to the air channel 223 through the threaded connector.

[0029] By adopting the above technical solution, a threaded connector is provided at one end of the aeration head 224, and the aeration head 224 is connected to the air channel 223 through the threaded connector, which makes it convenient for staff to disassemble and assemble it.

[0030] In this embodiment, dilute hydrochloric acid descaling agent is added to the storage tank 21 through the dosing port 23. When descaling of the heat exchange box 8 is required, water is injected into the heat exchange box 8, and the delivery pump 25 is turned on to extract the dilute hydrochloric acid descaling agent from the storage tank 21. After extraction, the dilute hydrochloric acid descaling agent is delivered into the heat exchange box 8 through the delivery pipe 26. Then, the exhaust port on the top of the heat exchange box 8 is opened, and the air pump 221 is turned on to extract outside air. After extraction, the air is delivered into the air channel 223 through the air supply pipe 222, and then sprayed out from the aeration head 224 to make the water in the heat exchange box 8 churn, so that the water can be completely mixed with the dilute hydrochloric acid descaling agent. Afterwards, the scale in the heat exchange box 8 will dissolve after soaking in the dilute hydrochloric acid descaling agent. Since the inner wall of the storage tank 21 is provided with an anti-corrosion plate 27, the dilute hydrochloric acid descaling agent can be prevented from corroding the storage tank 21.

[0031] Example 2

[0032] The difference between this embodiment and Embodiment 1 is that, specifically, the filter assembly 6 includes a filter cylinder 61, a filter cylinder cover 62, a water outlet 63, a filter screen 64, activated carbon 65, an installation groove 66, filter cotton 67, and a filter element 68. The filter cylinder 61 is installed at the drain pipe of the heat exchange box 8. A filter cylinder cover 62 is installed at one end of the filter cylinder 61. A water outlet 63 is installed in the middle of the filter cylinder cover 62. An installation groove 66 is installed inside the filter cylinder 61. A filter element 68 is installed in the middle of the installation groove 66. A filter screen 64 is installed inside the filter element 68. Activated carbon 65 is placed between the filter screens 64. Filter cotton 67 is also placed between the filter screens 64.

[0033] By adopting the above technical solution, the filter cartridge 61 fixes the filter element 68 through the mounting groove 66. When the outlet 63 at the filter cartridge cover 62 is opened, the water after heat exchange will be discharged from the heat exchange box 8. When the water after heat exchange is discharged, it will pass through the filter element 68. The filter element 68 is equipped with filter cotton 67, activated carbon 65 and filter screen 64, which can filter the water when it is discharged and remove impurities and harmful substances from the water.

[0034] Specifically, the bottom of the filter element 68 has a through hole, and a sealing ring is provided at the connection between the filter cylinder 61 and the filter cylinder cover 62.

[0035] By adopting the above technical solution, a through hole is provided at the bottom of the filter element 68, so that the filtered water can be discharged from the filter element 68. A sealing ring is provided at the connection between the filter cylinder 61 and the filter cylinder cover 62, so as to prevent the filter cylinder 61 from leaking water.

[0036] In this embodiment, the bottom of the filter element 68 has a through hole, allowing the filtered water to drain out. A sealing ring is provided at the connection between the filter cylinder 61 and the filter cylinder cover 62 to prevent leakage from the filter cylinder 61. The filter cylinder 61 is fixed to the filter element 68 by the mounting groove 66. When the outlet 63 at the filter cylinder cover 62 is opened, the water after heat exchange will be discharged from the heat exchange box 8. The water after heat exchange will pass through the filter element 68 when it is discharged. The filter element 68 is equipped with filter cotton 67, activated carbon 65 and filter screen 64, which can filter the water when it is discharged to remove impurities and harmful substances from the water.

[0037] In this utility model, the aeration head 224 is a previously disclosed technology, and the selected model is SSBQT.

[0038] The structure and operating principle of the protective box 1, gas conveying and filtering assembly 3, heat exchange tube 7, heat exchange box 8 and temperature detection assembly 9 in this utility model have been disclosed in a waste heat recovery device for air conditioning and heating disclosed in Chinese Patent Publication No. CN211400231U.

[0039] The working principle and usage process of this utility model are as follows: This utility model is used for descaling the heat exchange box 8 of a high-efficiency heat exchanger. During use, the scale inside the heat exchange box 8 needs to be cleaned periodically. Dilute hydrochloric acid descaling agent is added to the storage tank 21 through the dosing port 23. When descaling of the interior of the heat exchange box 8 is required, water is injected into the heat exchange box 8, and the delivery pump 25 is turned on to extract the dilute hydrochloric acid descaling agent from the storage tank 21. After extraction, the dilute hydrochloric acid descaling agent is delivered into the heat exchange box 8 through the delivery pipe 26. Then, open the exhaust port on top of the heat exchange box 8 and turn on the air pump 221 to draw in the outside air. After the air is drawn in, the air supply pipe 222 will deliver it into the air channel 223, and then spray it out from the aeration head 224 to make the water in the heat exchange box 8 churn, so that the water can be completely mixed with the dilute hydrochloric acid descaling agent. After that, the scale in the heat exchange box 8 will dissolve after being soaked in the dilute hydrochloric acid descaling agent. Since the inner wall of the storage box 21 is equipped with an anti-corrosion plate 27, it can prevent the dilute hydrochloric acid descaling agent from corroding the storage box 2.

[0040] In use, the water used for high-efficiency heat exchanger filtration requires filtration of the water after heat exchange during drainage. The bottom of the filter element 68 has a through hole, allowing the filtered water to drain out. A sealing ring is provided at the connection between the filter cylinder 61 and the filter cylinder cover 62 to prevent leakage from the filter cylinder 61. The filter cylinder 61 is fixed to the filter element 68 by the mounting groove 66. When the outlet 63 at the filter cylinder cover 62 is opened, the water after heat exchange will be discharged from the heat exchange box 8. The water after heat exchange will pass through the filter element 68 during drainage. The filter element 68 is equipped with filter cotton 67, activated carbon 65, and filter screen 64, which can filter the water during drainage and remove impurities and harmful substances from the water.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency heat exchanger, comprising a protective box (1), a support base (5) provided at the bottom of the protective box (1), a protective door (4) provided on the surface of the protective box (1), a heat exchange box (8) provided inside the protective box (1), a temperature detection component (9) provided on the surface of the heat exchange box (8), a heat exchange tube (7) provided inside the heat exchange box (8), and a gas delivery filter component (3) connected to one end of the heat exchange tube (7), characterized in that: A descaling assembly (2) is provided on one side of the heat exchange box (8), and a filter assembly (6) is provided at the drain pipe of the heat exchange box (8).

2. The high-efficiency heat exchanger according to claim 1, characterized in that: The descaling assembly (2) includes a storage tank (21), an aeration assembly (22), a dosing port (23), an observation window (24), a delivery pump (25), a delivery pipe (26), and an anti-corrosion plate (27). The heat exchange box (8) is equipped with an aeration assembly (22), and a delivery pipe (26) is provided on one side of the heat exchange box (8). One end of the delivery pipe (26) is connected to the delivery pump (25). The storage tank (21) is provided above the delivery pump (25). An observation window (24) is provided on the surface of the storage tank (21). A dosing port (23) is provided above the storage tank (21). An anti-corrosion plate (27) is provided on the inner wall of the storage tank (21).

3. The high-efficiency heat exchanger according to claim 2, characterized in that: The aeration assembly (22) includes an air pump (221), an air supply pipe (222), an air channel (223), and an aeration head (224). The heat exchange box (8) is provided with an air channel (223), and an aeration head (224) is provided above the air channel (223). An air supply pipe (222) is connected to one side of the air channel (223), and an air pump (221) is connected to one end of the air supply pipe (222).

4. The high-efficiency heat exchanger according to claim 3, characterized in that: One end of the aeration head (224) is provided with a threaded connector, and the aeration head (224) is connected to the air channel (223) through the threaded connector.

5. A high-efficiency heat exchanger according to claim 1, characterized in that: The filter assembly (6) includes a filter cylinder (61), a filter cylinder cover (62), a water outlet (63), a filter screen (64), activated carbon (65), an installation groove (66), filter cotton (67), and a filter element (68). The filter cylinder (61) is installed at the drain pipe of the heat exchange box (8). The filter cylinder (61) is provided at one end of the filter cylinder (61). The water outlet (63) is provided in the middle of the filter cylinder cover (62). The installation groove (66) is provided inside the filter cylinder (61). The filter element (68) is installed in the middle of the installation groove (66). The filter screen (64) is provided inside the filter element (68). Activated carbon (65) is provided between the filter screens (64). Filter cotton (67) is also provided between the filter screens (64).

6. A high-efficiency heat exchanger according to claim 5, characterized in that: The bottom of the filter element (68) is provided with a through hole, and a sealing ring is provided at the connection between the filter cylinder (61) and the filter cylinder cover (62).

Images