A high-efficiency heat exchange device for formaldehyde production

By installing a linked heat exchange mechanism in the formaldehyde production unit, the problem of cooling water discharge affecting maintenance was solved, achieving efficient maintenance and improved heat exchange efficiency.

CN224945287UActive Publication Date: 2026-11-06ZHEJIANG GUOYU PLASTIC IND CO LTD
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Patent Information

Application Number
CN202521503334.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-18
Publication Date
2026-11-06
Estimated Expiration
2035-07-18

AI Technical Summary

Technical Problem

In the current formaldehyde production process, the cooling water needs to be completely drained during the maintenance of the heat exchange device, which makes the operation cumbersome and affects production efficiency.

Method used

A heat exchange mechanism is installed inside the cooling box and linked with the water pump and controller. The lifting basket and curved pipe are driven by the oil cylinder for maintenance, which reduces the cooling water discharge time and increases the contact area with the cooling water to improve heat exchange efficiency.

Benefits of technology

It simplifies the maintenance process, reduces downtime, and improves the efficiency of the heat exchanger.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a high-efficiency heat exchange device for formaldehyde production, including a base plate. A cooling box, a controller, and a water pump are respectively installed on the top of the base plate. The outlet of the water pump is connected to the inlet of the cooling box through a pipe. The inlet of the water pump is connected to external cooling water. A heat exchange mechanism that facilitates quick maintenance is installed inside the cooling box. By installing a heat exchange mechanism inside the cooling box and linking it with the external water pump and controller, this utility model eliminates the need to drain the cooling water before maintenance. Its operation is simpler, reduces equipment downtime, and effectively improves the heat exchange efficiency of the equipment.
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Description

Technical Field

[0001] This utility model relates to the field of formaldehyde production technology, specifically to a high-efficiency heat exchange device for formaldehyde production. Background Technology

[0002] In the formaldehyde production process, heat exchangers are an indispensable and important piece of equipment, and their performance directly affects the production efficiency and quality of formaldehyde.

[0003] Patent document CN217520315U discloses a heat exchanger for producing anhydrous formaldehyde, including an outer shell. The right side wall of the outer shell is not closed. A movable groove with a rectangular cross-section is formed on the right side wall of the outer shell. A movable shell is set on the right side of the outer shell and is inserted into and movably connected to the inner cavity of the movable groove. Two threaded holes are formed on the left side wall of the movable shell. A threaded rod is threaded into each threaded hole. The end of the threaded rod away from the movable shell passes through the left side wall of the outer shell and is fixedly connected to a wheel. The threaded rod is movably connected to the outer shell. Two fixed tubes are symmetrically fixedly connected to the right side wall of the movable shell. Several round tubes are evenly distributed and fixedly connected to the left side wall of the outer shell and the right side wall of the movable shell. The round tubes pass through the outer shell and the movable shell respectively. The same connecting tube is fixedly connected between two adjacent round tubes. Several conduits are evenly distributed in the inner cavity of the round tubes. Both ends of the conduits pass through the round tubes and are fixedly connected to them.

[0004] When maintaining the aforementioned heat exchanger during use, the cooling water must be completely drained before maintenance can be performed, which is a rather cumbersome operation and thus affects the heat exchange efficiency of the equipment. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency heat exchange device for formaldehyde production, so as to solve the technical problem that maintenance downtime affects production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-efficiency heat exchange device for formaldehyde production includes a base plate, on the top of which a cooling box, a controller, and a water pump are respectively installed. The outlet of the water pump is connected to the inlet of the cooling box through a pipe, and the inlet of the water pump is connected to external cooling water. The cooling box is equipped with a heat exchange mechanism that facilitates quick maintenance.

[0008] The above technical solution installs a heat exchange mechanism inside the cooling box and links it with an external water pump and controller, thus eliminating the need to drain the cooling water before maintenance. This simplifies operation, greatly reduces equipment downtime, and effectively improves the equipment's heat exchange efficiency.

[0009] As a further embodiment of this invention, the heat exchange mechanism includes hydraulic cylinders symmetrically and fixedly installed inside the cooling box. A lifting basket is fixedly connected to the end of the cylinder's telescopic rod. Multiple sets of uprights are symmetrically and fixedly connected to the top of the lifting basket, and curved pipes are installed between the uprights. The heat exchange mechanism utilizes the hydraulic cylinders to drive the lifting basket, thereby lifting the multiple sets of curved pipes installed on the lifting basket. This significantly reduces the time required for draining cooling water during maintenance, effectively shortening the device's maintenance time.

[0010] As a further embodiment of this invention, the curved pipe is provided with multiple sets of heat dissipation fins to increase the contact area with cooling water, thereby improving the heat exchange efficiency of formaldehyde during production.

[0011] As a further embodiment of this utility model, inserts are provided at both ends of the heat dissipation fins to ensure that they can be stably fixed between the columns.

[0012] As a further embodiment of this utility model, a slot is provided on one side of the column, and the insert block is used in conjunction with the slot to facilitate the installation and maintenance of the curved pipe by the staff, which greatly shortens the maintenance time.

[0013] As a preferred embodiment of this utility model, a top cover is installed on the top of the cooling box, and a water outlet is opened on one side of the cooling box. The water outlet is connected to an external cooling system through a pipe, so that the cooling box is closed. The water outlet of the cooling box is connected to an external cooling water collection box to improve the heat exchange efficiency of formaldehyde.

[0014] As a further preferred embodiment of this utility model, the water pump and the oil cylinder are electrically connected to the controller via wires, which can control the operation of the water pump and the oil cylinder, thereby improving the heat exchange efficiency of formaldehyde during production.

[0015] Compared with the prior art, the beneficial effects of this utility model of a high-efficiency heat exchange device for formaldehyde production are as follows: by installing a heat exchange mechanism in the cooling box and linking it with the external water pump and controller, it is not necessary to drain the cooling water before maintenance. Its operation is simpler, greatly shortens the downtime of the equipment, and effectively improves the heat exchange efficiency of the equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only examples of embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of an embodiment of the present utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of an embodiment of the present utility model. Figure 2 ;

[0019] Figure 3 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0020] Figure 4 This is an exploded structural diagram of the components in an embodiment of the present utility model.

[0021] Reference numerals: 1. Base plate; 2. Cooling tank; 201. Top cover; 202. Water outlet; 203. Water inlet; 3. Controller; 4. Water pump; 5. Heat exchange mechanism; 501. Oil cylinder; 502. Lifting basket; 503. Curved pipe; 504. Heat dissipation fins; 505. Insert block; 506. Column; 507. Slot. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0024] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present invention should be understood according to the specific circumstances.

[0025] See Figure 1-4 As shown in the figure, an embodiment of the present invention provides a high-efficiency heat exchange device for formaldehyde production, including a base plate 1. A cooling box 2, a controller 3, and a water pump 4 are respectively installed on the top of the base plate 1. The outlet of the water pump 4 is connected to the inlet 203 of the cooling box 2 through a pipe. The inlet of the water pump 4 is connected to external cooling water. The cooling box 2 is equipped with a heat exchange mechanism 5 that is easy to maintain quickly.

[0026] The heat exchange mechanism 5 includes hydraulic cylinders 501, which are symmetrically and fixedly installed inside the cooling box 2. A lifting basket 502 is fixedly connected to the end of the telescopic rod of the hydraulic cylinder 501. Multiple sets of uprights 506 are symmetrically and fixedly connected to the top of the lifting basket 502, and curved pipes 503 are installed between the uprights 506. In the heat exchange mechanism 5, the hydraulic cylinders 501 drive the lifting basket 502 to move, thereby lifting the multiple sets of curved pipes 503 installed on the lifting basket 502. This greatly saves the time spent draining cooling water during maintenance and effectively improves the maintenance efficiency of the device.

[0027] Multiple sets of heat dissipation fins 504 are provided on the curved tube 503 to increase the contact area with cooling water, thereby improving the heat exchange efficiency of formaldehyde during production.

[0028] The heat dissipation fins 504 are provided with inserts 505 at both ends, so that they can be stably fixed between the columns 506.

[0029] A slot 507 is provided on one side of the column 506. The insert block 505 is used in conjunction with the slot 507 to facilitate the installation and maintenance of the curved pipe 503 by the staff, which greatly improves the maintenance time.

[0030] The top of the cooling box 2 is equipped with a cover 201, and a water outlet 202 is opened on one side of the cooling box 2. The water outlet 202 is connected to an external cooling system through a pipe to improve the heat exchange efficiency of formaldehyde.

[0031] Water pump 4 and oil cylinder 501 are electrically connected to controller 3 via wires to control the operation of water pump 4 and oil cylinder 501, thereby improving the heat exchange efficiency of formaldehyde during production.

[0032] When maintaining the device, the top cover 201 is removed, and the controller 3 starts the oil cylinder 501, which drives the lifting basket 502 to move upward, thus facilitating the replacement and maintenance of the curved pipe 503. There is no need to drain the cooling water before maintenance, making the operation simple, greatly shortening the equipment downtime, and effectively improving the heat exchange efficiency of the equipment.

[0033] This utility model embodiment installs a heat exchange mechanism 5 inside the cooling box 2 and links it with the external water pump 4 and controller 3, thus eliminating the need to drain the cooling water before maintenance. Its operation is simpler, greatly shortens the equipment downtime, and effectively improves the heat exchange efficiency of the equipment.

[0034] The foregoing has shown and described the basic principles of the present invention. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention without departing from the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency heat exchange device for formaldehyde production, characterized in that: Includes a base plate (1), on the top of which a cooling box (2), a controller (3), and a water pump (4) are respectively installed. The outlet of the water pump (4) is connected to the inlet (203) of the cooling box (2) through a pipe. The inlet of the water pump (4) is connected to external cooling water. The cooling box (2) is equipped with a heat exchange mechanism (5) that facilitates quick maintenance. The heat exchange mechanism (5) includes a hydraulic cylinder (501), which is symmetrically fixedly installed in the cooling box (2). The end of the telescopic rod of the hydraulic cylinder (501) is fixedly connected to a lifting basket (502). The top of the lifting basket (502) is symmetrically fixedly connected to multiple sets of columns (506). A curved pipe (503) is installed between the columns (506). Multiple sets of heat dissipation fins (504) are provided on the curved pipe (503).

2. The high-efficiency heat exchange device for formaldehyde production according to claim 1, characterized in that: Insertion blocks (505) are provided at both ends of the heat dissipation fins (504).

3. The high-efficiency heat exchange device for formaldehyde production according to claim 2, characterized in that: A slot (507) is provided on one side of the column (506), and the insert (505) is used in conjunction with the slot (507).

4. The high-efficiency heat exchange device for formaldehyde production according to claim 1, characterized in that: The top of the cooling box (2) is equipped with a cover (201), and a water outlet (202) is provided on one side of the cooling box (2). The water outlet (202) is connected to an external cooling system through a pipe.

5. A high-efficiency heat exchange device for formaldehyde production according to any one of claims 1-4, characterized in that: The water pump (4) and the oil cylinder (501) are electrically connected to the controller (3) via wires.

Citation Information

Patent Citations

  • Heat exchanger for producing anhydrous formaldehyde

    CN217520315U