A heat exchange device for low-temperature heat pump rectification

By introducing an automatic cleaning system into the low-temperature heat pump distillation unit, the problems of frost and ice formation and dust adhesion on the heat exchange tubes have been solved, thereby improving heat exchange efficiency and resource utilization efficiency.

CN224681395UActive Publication Date: 2026-08-25江苏嘉尚环保科技有限公司
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Patent Information

Application Number
CN202521432799.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-08
Publication Date
2026-08-25
Estimated Expiration
2035-07-08

AI Technical Summary

Technical Problem

Existing low-temperature heat pump distillation units are prone to frost and ice buildup on the outside of the heat exchange tubes inside the evaporator, which affects heat exchange efficiency. Furthermore, dust accumulation reduces working efficiency and results in insufficient resource utilization.

Method used

Design a rotating lead screw and cleaning brush system with forward and reverse motor drive to clean the heat exchange window through an automatic cleaning back plate and cleaning brush, and collect dust in a dust collection box to prevent dust from adhering.

Benefits of technology

It effectively prevents dust adhesion, improves heat exchange efficiency, prevents frost and ice formation, and enhances the practicality and resource utilization efficiency of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to low temperature heat pump rectification heat transfer technical field especially for a kind of heat exchange device for low temperature heat pump rectification, including heat exchange equipment ontology, the left and right sides of heat exchange equipment ontology are all communicated and are connected with heat exchange passage, the front of heat exchange passage is installed with multiple groups of heat exchange connecting pipe, heat exchange fan is installed at the port inside heat exchange passage, the end away from heat exchange equipment ontology of heat exchange passage is provided with heat exchange window, in the utility model, the heat exchange window of both ends heat exchange passage can be effectively cleaned automatically, avoid external airflow to enter the inside installation pipe of both ends through vent, more dust is attached to the outside of vent by long time work, thereby the problem of reduced work efficiency occurs.
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Description

Technical Field

[0001] This utility model relates to the field of low-temperature heat pump distillation heat exchange technology, specifically a heat exchange device for low-temperature heat pump distillation. Background Technology

[0002] Ultra-low temperature air source heat pumps utilize ultra-low temperature compressors and low-temperature, high-efficiency, and environmentally friendly refrigeration systems commonly used in cold regions of Europe. At low temperatures (-25℃), their heating efficiency is 50%-80% higher than that of conventional air source heat pump units. Ultra-low temperature air source heat pump units experience minimal reduction in heating capacity when the ambient temperature drops significantly, ensuring optimal heating performance. They are commonly used by users in the EU market for room heating and hot water production in cold regions during winter.

[0003] According to Chinese National Patent Publication No. CN213748053U, a heat exchange device for low-temperature heat pump distillation is disclosed. This heat exchange device for low-temperature heat pump distillation has the advantages of energy saving and preventing frost formation. It solves the problem that most existing low-temperature heat pumps are prone to frost and ice formation on the outside of the heat exchange tubes located in the evaporator, which affects the heat exchange efficiency. When a low-temperature heat pump is selected as the heat source for distillation, a large amount of heat carried by the coolant in the condenser of the distillation machine is not effectively utilized, resulting in resource waste.

[0004] When in use, the device requires a fan to operate so that external airflow enters the installation tubes at both ends through the vents. However, after prolonged operation, a lot of dust will accumulate on the outside of the vents, thus reducing work efficiency.

[0005] Therefore, it is particularly important to design a heat exchange device for low-temperature heat pump distillation to overcome the above-mentioned technical defects and improve the overall practicality. Utility Model Content

[0006] The purpose of this invention is to provide a heat exchange device for low-temperature heat pump distillation, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A heat exchange device for low-temperature heat pump distillation includes a heat exchanger body. Heat exchange channels are connected to both the left and right sides of the heat exchanger body. Multiple sets of heat exchange connecting pipes are installed on the front of each heat exchange channel. A heat exchange fan is installed at the port inside each heat exchange channel. A heat exchange window is provided at the end of each heat exchange channel away from the heat exchanger body. A fixed upright is installed on the outer side of the heat exchange channel facing the heat exchange window. A forward and reverse motor is installed at the top of the fixed upright. The output end of the forward and reverse motor passes through the interior of the fixed upright and is connected to a rotating screw. The rotating lead screw has a lead screw sleeve threaded onto its outer side. A folding bracket is fixed to the outer side of the lead screw sleeve. A cleaning back plate is connected to the end of the folding bracket away from the lead screw sleeve. A cleaning brush for use with the heat exchange window is provided on the side of the cleaning back plate. A dust collection box is installed at the bottom of the heat exchange channel and at the end facing the heat exchange window. A dust collection drawer is connected to the bottom of the inner side of the dust collection box. A dust suction port is provided on the outer side of the dust collection box and above the dust collection drawer. A miniature exhaust fan is embedded inside the dust collection box at the position corresponding to the dust suction port.

[0009] As a preferred embodiment of this utility model, a controller is installed on the back of the heat exchanger body, wherein the controller is connected to the forward and reverse motors and the miniature exhaust fan by wires, and the connection is an electrical connection.

[0010] As a preferred embodiment of this utility model, both ends of the rotating lead screw are rotatably connected to the inside of the fixed upright through bearing seats.

[0011] As a preferred embodiment of this utility model, a rectangular sliding groove is provided on the outer side of the fixed upright for the folding bracket to move up and down.

[0012] As a preferred embodiment of this utility model, the connection between the ash collection box and the ash collection drawer is a sliding connection, and a handle is fixed to the outside of the ash collection drawer.

[0013] As a preferred embodiment of this utility model, the bristles of the cleaning brush are in contact with the surfaces of the heat exchange window and the dust suction port.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, a heat exchange device for low-temperature heat pump distillation is provided, which can effectively and automatically clean the heat exchange windows of the heat exchange channels at both ends, preventing external airflow from entering the installation pipes at both ends through the vents. Over time, a lot of dust will adhere to the outside of the vents, thus reducing work efficiency. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This is a partial structural diagram of the present invention;

[0018] Figure 3 This is a partial structural diagram of the present utility model.

[0019] In the diagram: 1. Heat exchanger body; 2. Heat exchange channel; 3. Heat exchange connecting pipe; 4. Heat exchange fan; 5. Heat exchange window; 6. Fixed support pole; 601. Forward and reverse motor; 602. Rotating lead screw; 603. Lead screw sleeve; 604. Folding bracket; 605. Cleaning back plate; 606. Cleaning brush; 7. Dust collection box; 701. Dust collection drawer; 702. Dust suction port; 703. Mini exhaust fan. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0025] A heat exchange device for low-temperature heat pump distillation includes a heat exchange equipment body 1, with heat exchange channels 2 connected to both the left and right sides of the heat exchange equipment body 1. Multiple sets of heat exchange connecting pipes 3 are installed on the front of the heat exchange channels 2. A heat exchange fan 4 is installed at the port inside the heat exchange channels 2. A heat exchange window 5 is provided at the end of the heat exchange channels 2 away from the heat exchange equipment body 1. A fixed pole 6 is installed on the outer side of the heat exchange channels 2 facing the heat exchange window 5.

[0026] A heat exchange device for low-temperature heat pump distillation includes a positive and negative motor 601 mounted on the top of a fixed upright 6. The output end of the positive and negative motor 601 passes through the interior of the fixed upright 6 and is connected to a rotating lead screw 602. A lead screw sleeve 603 is threaded onto the outer side of the rotating lead screw 602. A folding bracket 604 is fixed to the outer side of the lead screw sleeve 603. A cleaning back plate 605 is connected to the end of the folding bracket 604 away from the lead screw sleeve 603. A cleaning brush 606 for use with heat exchange window 5 is provided on the side of the cleaning back plate 605. A dust collection box 7 is installed at the bottom of the heat exchange channel 2 and at the end facing the heat exchange window 5. A dust collection drawer 701 is connected to the bottom of the inner side of the dust collection box 7. A dust suction port 702 is provided on the outer side of the dust collection box 7 and above the dust collection drawer 701. A miniature exhaust fan 703 is embedded inside the dust collection box 7 at the position corresponding to the dust suction port 702.

[0027] The back of the heat exchanger body 1 is equipped with a controller, which is connected to the forward and reverse motor 601 and the miniature exhaust fan 703 by wires and the connection is electrical. Both ends of the rotating screw 602 are rotatably connected to the inside of the fixed column 6 through bearing seats. The outer side of the fixed column 6 is provided with a rectangular sliding groove for the folding bracket 604 to move up and down. The ash collection box 7 and the ash collection drawer 701 are connected by a sliding connection. The outer side of the ash collection drawer 701 is fixed with a handle. The bristles of the cleaning brush 606 are in contact with the surfaces of the heat exchange window 5 and the ash suction port 702.

[0028] The working process of this utility model is as follows: During use, under the control of the controller, the forward and reverse motor 601 is activated at regular intervals to drive the rotation of the lead screw 602, thereby driving the lead screw sleeve 603 to move up and down, causing the folding bracket 604 to move synchronously with the cleaning back plate 605. Finally, the cleaning brush 606, which was originally located at the bottom of the heat exchange channel 2, moves up to clean the surface of the heat exchange window 5, brushing away the attached dust. Then, under the drive, it moves down to the front of the dust collection box 7. At this time, the miniature exhaust fan 703 is activated, sucking the floating dust on the cleaning brush 606 into the dust collection drawer 701 through the dust suction port 702, thus completing the cleaning. This prevents external airflow from entering the installation pipes at both ends through the vents. Over a long period of work, a lot of dust will adhere to the outside of the vents, thus reducing work efficiency.

[0029] 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 heat exchange device for cryogenic heat pump rectification, comprising a heat exchange device body (1), characterised in that: The heat exchange equipment body (1) is connected to heat exchange channels (2) on both the left and right sides. Multiple sets of heat exchange connecting pipes (3) are installed on the front of the heat exchange channel (2). A heat exchange fan (4) is installed at the port inside the heat exchange channel (2). A heat exchange window (5) is provided at the end of the heat exchange channel (2) away from the heat exchange equipment body (1). A fixed pole (6) is installed on the outer side of the heat exchange channel (2) facing the heat exchange window (5). A forward and reverse motor (601) is provided on the top of the fixed pole (6). The output end of the forward and reverse motor (601) passes through the interior of the fixed pole (6) and is connected to a rotating screw (602). A screw sleeve (603) is threaded onto the outer side of the rotating screw (602). The outer side of the lead screw sleeve (603) is fixed with a folding bracket (604). The end of the folding bracket (604) away from the lead screw sleeve (603) is connected to a cleaning back plate (605). The side of the cleaning back plate (605) is provided with a cleaning brush (606) for use with the heat exchange window (5). A dust collection box (7) is installed at the bottom of the heat exchange channel (2) and at the end facing the heat exchange window (5). A dust collection drawer (701) is connected to the bottom of the inner side of the dust collection box (7). A dust suction port (702) is provided on the outer side of the dust collection box (7) and above the dust collection drawer (701). A miniature exhaust fan (703) is embedded inside the dust collection box (7) at the position corresponding to the dust suction port (702).

2. A heat exchange device for cryogenic heat pump rectification according to claim 1, characterized in that: The back of the heat exchanger body (1) is equipped with a controller, which is connected to the forward and reverse motor (601) and the miniature exhaust fan (703) by wires, and the connection is electrical.

3. A heat exchange device for cryogenic heat pump rectification according to claim 1, characterized in that: Both ends of the rotating lead screw (602) are rotatably connected to the inside of the fixed upright (6) through bearing seats.

4. The heat exchange device for cryogenic heat pump rectification of claim 1, wherein: The outer side of the fixed pole (6) is provided with a rectangular sliding groove for the folding bracket (604) to move up and down.

5. The heat exchange device for cryogenic heat pump rectification of claim 1, wherein: The ash collection box (7) and the ash collection drawer (701) are connected by a sliding connection, and a handle is fixed on the outside of the ash collection drawer (701).

6. A heat exchange device for cryogenic heat pump rectification according to claim 1, characterized in that: The bristles of the cleaning brush (606) are in contact with the surfaces of the heat exchange window (5) and the dust suction port (702).

Citation Information

Patent Citations

  • Heat exchange device for low-temperature heat pump rectification

    CN213748053U