Easily-cleaned heat exchanger for heating and ventilation equipment

Abstract

The utility model discloses an easy-to-clean heat exchanger for heating and ventilation equipment, dust and scale generated by the easy-to-clean heat exchanger are easy to clean, and the heat exchange efficiency is guaranteed. The device comprises a main body structure and a cleaning structure, the top of the main body structure is fixedly connected with the cleaning structure, the main body structure comprises a heat exchange box, a mounting seat is clamped to the inner wall of the heat exchange box, a heat exchange pipe is fixedly connected to the outer wall of the mounting seat, a plurality of heat exchange fins are arranged on the outer surface of the heat exchange pipe, and the cleaning structure comprises an alkaline water tank. The top of the alkaline water tank is fixedly connected with a liquid inlet pipe, the bottom of the alkaline water tank is fixedly connected with a liquid outlet pipe, the bottom of the liquid outlet pipe is fixedly connected with a flow equalizing plate, and the bottom of the flow equalizing plate is provided with a plurality of nozzles at equal intervals.

Description

Technical Field

[0001] This utility model relates to the field of heating, ventilation and air conditioning (HVAC) equipment technology, specifically to an easy-to-clean heat exchanger for HVAC equipment. Background Technology

[0002] Heat exchangers have a wide range of applications, including chemical, light industry, food, pharmaceutical, and hot water supply for residential buildings. In a broader sense, heat exchangers also include condensers. Most heat exchangers are indirect, exchanging heat but not matter. As a core component of HVAC systems, the efficiency of the heat exchanger determines the performance of the entire system.

[0003] According to the "Easy-to-Clean Heat Exchanger for HVAC Equipment" published in Chinese Patent Publication No. CN221924712U, the heat exchange components are rotatably mounted in the heat exchange box. During normal heat exchange, the heat exchange components are vertically positioned to heat the flowing air. When the heat exchange performance decreases, the heat exchange components are rotated 90° to a horizontal position to align with the air-blowing cleaning components. Then, a temporary external high-pressure air source is connected, and the high-pressure airflow blows the dust and impurities attached to the heat exchange components into the dust collection hopper for cleaning. Therefore, the heat exchanger does not need to be removed for cleaning, making the entire cleaning process very simple, convenient, and practical. Further design improvements allow the lifting plate to move downwards during air-blowing cleaning of the heat exchange components, enabling the high-pressure nozzles to approach the heat exchange fins before air-blowing cleaning, ensuring effective cleaning of the heat exchange fins.

[0004] However, the above-mentioned device has the problem that after a period of use, dust and scale are easily generated on the heat exchange tubes and fins inside the heat exchanger. The scale is not easy to clean through high-pressure airflow, and if the scale is not cleaned, it will affect the heat exchange effect of the heat exchanger on the water pipeline. Utility Model Content

[0005] To address the shortcomings of heat exchangers, such as the easy accumulation of dust and scale in the heat exchange tubes and fins, which are difficult to clean and affect heat exchange efficiency, this invention provides an easy-to-clean heat exchanger for HVAC equipment. The dust and scale generated are easy to clean, ensuring heat exchange efficiency.

[0006] This utility model provides the following technical solution:

[0007] It includes a main structure and a cleaning structure. The cleaning structure is fixedly connected to the top of the main structure. The main structure includes a heat exchange box. An installation base is snapped onto the inner wall of the heat exchange box. A heat exchange tube is fixedly connected to the outer wall of the installation base. Several heat exchange fins are provided on the outer surface of the heat exchange tube. The cleaning structure includes an alkaline water tank. An inlet pipe is fixedly connected to the top of the alkaline water tank. An outlet pipe is fixedly connected to the bottom of the alkaline water tank. A flow equalization plate is fixedly connected to the bottom of the outlet pipe. Several equally spaced nozzles are provided at the bottom of the flow equalization plate.

[0008] Its further features are:

[0009] An air outlet is provided on the left outer wall of the heat exchange box, and an air inlet is provided on the right outer wall of the heat exchange box;

[0010] The heat exchange box is fixedly connected to a base at the bottom, and a drainage groove is provided on the lower surface of the heat exchange box;

[0011] The alkaline water tank is installed on the top of the heat exchange box by a support column, and the end of the liquid outlet pipe away from the alkaline water tank passes through the top of the heat exchange box and extends into the interior;

[0012] The heat exchange box has a fixing groove on its inner wall, and a fixing block is provided inside the fixing groove. The top of the fixing block is semi-circular.

[0013] A reset spring is fixedly connected to the inner wall of the fixing groove, and the top of the reset spring is fixedly connected to the outer wall of the fixing block.

[0014] The outer wall of the mounting base is provided with a positioning groove, the shape and size of which are adapted to the shape and size of the fixing groove.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0016] First, this utility model installs an alkaline water tank above the heat exchange box and sets up a flow equalization plate above the heat exchange tubes and heat exchange fins. Several nozzles are equidistantly arranged at the bottom of the flow equalization plate. The alkaline water tank and the flow equalization plate are connected through a liquid outlet pipe. When the heat exchanger stops working, water mist is sprayed through the nozzles to clean the dust and scale on the outer wall of the heat exchange tubes and heat exchange fins. The cleaning effect of the heat exchanger is good, convenient and effective, and avoids the dust and scale on the heat exchange tubes and heat exchange fins from affecting the heat exchange efficiency of the heat exchanger.

[0017] Secondly, this utility model installs the heat exchange tubes and heat exchange fins into the heat exchange box by mounting the mounting base. When the positioning groove on the mounting base is aligned with the fixing groove in the heat exchange box, the return spring in the fixing groove applies an outward force to the fixing block, causing the fixing block to disengage from the fixing groove and engage in the positioning groove, thus completing the fixed installation of the heat exchange tubes and heat exchange fins. This structure is simple, easy to disassemble and assemble, and convenient for workers to disassemble and maintain the heat exchange tubes and heat exchange fins. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a bottom-view schematic diagram of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0021] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A.

[0022] The components are as follows: 1. Main structure; 101. Heat exchange box; 102. Mounting base; 103. Heat exchange tube; 104. Heat exchange fins; 105. Fixing groove; 106. Fixing block; 107. Return spring; 108. Positioning groove; 2. Cleaning structure; 201. Alkali water tank; 202. Liquid inlet pipe; 203. Liquid outlet pipe; 204. Flow equalization plate; 205. Nozzle. Detailed Implementation

[0023] 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.

[0024] This utility model provides the following technical solution:

[0025] Example 1

[0026] Please see Figure 1-4 A heat exchanger for easy-to-clean HVAC equipment includes a main structure 1 and a cleaning structure 2, with the cleaning structure 2 fixedly connected to the top of the main structure 1.

[0027] The main structure 1 includes a heat exchange box 101, an installation base 102 is snapped onto the inner wall of the heat exchange box 101, a heat exchange tube 103 is fixedly connected to the outer wall of the installation base 102, and a number of heat exchange fins 104 are provided on the outer surface of the heat exchange tube 103.

[0028] The cleaning structure 2 includes an alkaline water tank 201, an inlet pipe 202 fixedly connected to the top of the alkaline water tank 201, an outlet pipe 203 fixedly connected to the bottom of the alkaline water tank 201, a flow equalization plate 204 fixedly connected to the bottom of the outlet pipe 203, and a number of equally spaced nozzles 205 provided at the bottom of the flow equalization plate 204.

[0029] An air outlet is provided on the left outer wall of the heat exchange box 101, and an air inlet is provided on the right outer wall of the heat exchange box 101.

[0030] A base is fixedly connected to the bottom of the heat exchange box 101, and a drainage groove is provided on the lower surface of the heat exchange box 101.

[0031] The alkaline water tank 201 is installed on the top of the heat exchange box 101 by a support column, and the end of the liquid outlet pipe 203 away from the alkaline water tank 201 passes through the top of the heat exchange box 101 and extends into the interior.

[0032] Through the above technical solution, by installing an alkaline water tank 201 above the heat exchange box 101, and setting a flow equalization plate 204 above the heat exchange tubes 103 and heat exchange fins 104, and equidistantly arranged a number of nozzles 205 at the bottom of the flow equalization plate 204, the alkaline water tank 201 and the flow equalization plate 204 are connected through the liquid outlet pipe 203. When the heat exchanger stops working, water mist is sprayed through the nozzles 205 to clean the dust and scale on the outer wall of the heat exchange tubes 103 and heat exchange fins 104. The cleaning effect of the heat exchanger is good, convenient and effective, and avoids the dust and scale on the heat exchange tubes 103 and heat exchange fins 104 from affecting the heat exchange efficiency of the heat exchanger.

[0033] Example 2

[0034] Please see Figure 1-4 Furthermore, based on Embodiment 1, an easy-to-clean heat exchanger for HVAC equipment is obtained, comprising a main structure 1 and a cleaning structure 2, wherein the cleaning structure 2 is fixedly connected to the top of the main structure 1.

[0035] The main structure 1 includes a heat exchange box 101, an installation base 102 is snapped onto the inner wall of the heat exchange box 101, a heat exchange tube 103 is fixedly connected to the outer wall of the installation base 102, and a number of heat exchange fins 104 are provided on the outer surface of the heat exchange tube 103.

[0036] The cleaning structure 2 includes an alkaline water tank 201, an inlet pipe 202 fixedly connected to the top of the alkaline water tank 201, an outlet pipe 203 fixedly connected to the bottom of the alkaline water tank 201, a flow equalization plate 204 fixedly connected to the bottom of the outlet pipe 203, and a number of equally spaced nozzles 205 provided at the bottom of the flow equalization plate 204.

[0037] The heat exchange box 101 has a fixing groove 105 on its inner wall, and a fixing block 106 is provided inside the fixing groove 105. The top of the fixing block 106 is semi-circular.

[0038] A reset spring 107 is fixedly connected to the inner wall of the fixed groove 105, and the top of the reset spring 107 is fixedly connected to the outer wall of the fixed block 106.

[0039] The mounting base 102 has a positioning groove 108 on its outer wall, and the shape and size of the positioning groove 108 are adapted to the shape and size of the fixing groove 105.

[0040] Through the above technical solution, the heat exchange tube 103 and heat exchange fins 104 are installed into the heat exchange box 101 by the mounting base 102. When the positioning groove 108 on the mounting base 102 is aligned with the fixing groove 105 in the heat exchange box 101, the return spring 107 in the fixing groove 105 gives the fixing block 106 an outward force, causing the fixing block 106 to disengage from the fixing groove 105 and be inserted into the positioning groove 108, thus completing the fixed installation of the heat exchange tube 103 and heat exchange fins 104. This structure is simple, easy to disassemble and assemble, and convenient for workers to disassemble and maintain the heat exchange tube 103 and heat exchange fins 104.

[0041] Although specific 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 specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An easy-to-clean heat exchanger for heating, ventilation and air conditioning equipment, comprising a main structure and a cleaning structure, characterized in that: The top of the main body structure is fixedly connected with a cleaning structure, the main body structure comprises a heat exchange box, the inner wall of the heat exchange box is clamped with a mounting seat, the outer wall of the mounting seat is fixedly connected with a heat exchange pipe, the outer surface of the heat exchange pipe is provided with a plurality of heat exchange fins, the cleaning structure comprises a lye tank, the top of the lye tank is fixedly connected with a liquid inlet pipe, the bottom of the lye tank is fixedly connected with a liquid outlet pipe, the bottom of the liquid outlet pipe is fixedly connected with a flow distribution plate, and the bottom of the flow distribution plate is provided with a plurality of equidistant spray heads.

2. A heat exchanger according to claim 1, wherein: The left outer wall of the heat exchange box is provided with an air outlet, and the right outer wall of the heat exchange box is provided with an air inlet.

3. A self-cleaning heat exchanger for use in a heating and ventilation device according to claim 1, characterized in that: The bottom of the heat exchange box is fixedly connected with a base, and the lower surface of the heat exchange box is provided with a drainage groove.

4. A self-cleaning heat exchanger for use in a heating and ventilation system according to claim 1, wherein: The lye tank is installed on the top of the heat exchange box through a support column, and the end of the liquid outlet pipe away from the lye tank penetrates through the top of the heat exchange box and extends to the inside.

5. A self-cleaning heat exchanger for use in a heating and ventilation system according to claim 1, wherein: The inner wall of the heat exchange box is provided with a fixed groove, the inside of the fixed groove is provided with a fixed block, and the top of the fixed block is semicircular.

6. A self-cleaning heat exchanger for use in a heating and ventilation device according to claim 5, characterized in that: The inner wall of the fixed groove is fixedly connected with a return spring, and the top of the return spring is fixedly connected to the outer wall of the fixed block.

7. A self-cleaning heat exchanger for use in a heating and ventilation device according to claim 1, characterized in that: The outer wall of the mounting seat is provided with a positioning groove, and the shape and size of the positioning groove are matched with the shape and size of the fixed groove.

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