Sectional type surface air cooler drying air heating device

The drying air heating device, with its segmented structure and vacuum insulation design, solves the problems of low heat exchange efficiency and heat waste in existing drying equipment, achieving improved high-efficiency heating and temperature control accuracy.

CN224162730UActive Publication Date: 2026-04-24SHANDONG JIXING ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG JIXING ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-07-30
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The electric heating method of existing drying equipment has low heat exchange efficiency and poor temperature control accuracy, which easily leads to heat waste, resulting in resource waste and low heat exchange efficiency.

Method used

The heat exchange box adopts a segmented structure and is equipped with heat exchange tubes, heat exchange plates and heat exchange disks. Combined with a vacuum insulation cover and sealing mechanism, it heats the airflow with hot water and preheats it by recirculation. The vacuum level of the insulation cover is maintained by a vacuum pump to reduce heat loss.

Benefits of technology

It improves heating efficiency, reduces resource waste, and enhances temperature control accuracy and heat exchange efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224162730U_ABST
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Abstract

The utility model belongs to the field of drying air heating devices, and particularly relates to a sectional type surface air cooler drying air heating device which comprises a heat exchange box, a heat preservation cover is fixedly connected to the outer side of the heat exchange box, an air inlet is formed in the right end of the heat exchange box, and an air outlet is formed in the left end of the heat exchange box. A vacuum pipe is fixedly connected to the left portion of the upper end of the heat preservation cover, and a sealing mechanism is arranged in the vacuum pipe. Due to the fact that the heat exchange disc, the heat exchange pipe, the heat exchange pieces and other structures are additionally arranged in the heat exchange box, when airflow is heated, hot water can be injected into the heat exchange pipe, when the hot water flows in the heat exchange pipe, the airflow can be heated through the heat exchange pieces, and meanwhile when dried hot air flows through the hot air backflow pipe, the hot air can flow through the hot air backflow pipe. And air flow newly entering the heat exchange box can be preheated through the heat exchange disc, so that heat can be effectively absorbed, and waste of resources can be reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of drying air heating devices, specifically a segmented surface cooler drying air heating device. Background Technology

[0002] The surface cooler is a key component in air conditioning systems and refrigeration equipment, primarily used for heat exchange between air and refrigerant (such as chilled water or refrigerant). During operation, the surface cooler requires drying the airflow with hot air to prevent internal humidity from affecting temperature control. However, existing drying equipment often uses electric or steam heating, resulting in high energy consumption (electrical-thermal conversion efficiency ≤95%), poor temperature control accuracy (±5℃), resource waste, and low heat exchange efficiency. Furthermore, the heat exchange chamber relies solely on a single insulation layer for insulation, leading to heat loss within the insulation chamber as well. Therefore, improvements to existing technologies are necessary. Utility Model Content

[0003] The purpose of this invention is to provide a segmented surface cooler drying air heating device, which solves the problems of low heat exchange efficiency and easy heat waste in the heat exchange box caused by electric heating.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a segmented surface cooler drying air heating device, comprising a heat exchange box, an insulation cover fixedly connected to the outside of the heat exchange box, an air inlet at the right end of the heat exchange box, an air outlet at the left end of the heat exchange box, a vacuum tube fixedly connected to the upper left part of the insulation cover, a sealing mechanism provided inside the vacuum tube, multiple evenly distributed heat exchange tubes fixedly connected to the inner left part of the heat exchange box, heat exchange plates fixedly connected to the outside of the heat exchange tubes, a water supply pipe fixedly connected to the upper end of the insulation cover, a drain pipe fixedly connected to the lower end of the insulation cover, a hot air return pipe fixedly connected to the inner right part of the heat exchange box, and a heat exchange plate fixedly connected to the outside of the hot air return pipe.

[0005] Preferably, the upper end of the vacuum tube is connected to a connecting pipe via a thread, and the outer side of the connecting pipe is connected to a sealing cap via a thread. The connecting pipe can be connected to the pipeline of the vacuum pump.

[0006] Preferably, the water supply pipe is fixedly connected to the heat exchange pipe, the drain pipe is fixedly connected to the insulation cover, the heat exchange pipe is fixedly connected to the insulation cover, and the water supply pipe can circulate hot water into the interior of the heat exchange pipe.

[0007] Preferably, a filter screen is fixedly connected to the inner center of the heat exchange box, and the heat exchange plates are fixedly connected to the heat exchange box. The filter screen can divide the interior of the heat exchange box into a high-temperature zone and a low-temperature zone.

[0008] Preferably, the heat exchange plate is located inside the heat exchange box, and there are multiple heat exchange plates. The multiple heat exchange plates are evenly distributed on the outside of the hot air return pipe, and multiple heat exchange plates can increase the heat exchange efficiency.

[0009] Preferably, the sealing mechanism includes a fixing strip, a fixing strip is fixedly connected to the upper part of the inner wall of the vacuum tube, a connecting pin is slidably connected inside the fixing strip, a sealing seat is fixedly connected to the lower end of the connecting pin, a sealing ring is fixedly connected to the lower part of the inner wall of the vacuum tube, a spring is provided on the outside of the connecting pin, the sealing ring contacts the sealing seat, and the sealing seat can seal the vacuum tube through the sealing ring.

[0010] Preferably, one end of the spring is fixedly connected to the fixing strip, and the other end of the spring is fixedly connected to the sealing seat. The spring can support the sealing seat through its elastic force.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by adding heat exchange plates, heat exchange tubes, and heat exchange fins inside the heat exchange box, allows for the heating of airflow. Hot water can be injected into the heat exchange tubes, and the hot water flowing inside the heat exchange tubes can heat the airflow through the heat exchange fins. At the same time, the dried hot air flowing through the hot air return pipe can preheat the airflow newly entering the heat exchange box through the heat exchange plates, thereby effectively absorbing heat and reducing resource waste.

[0013] 2. This utility model adds a heat insulation cover, vacuum tube and sealing mechanism to the outside of the heat exchange box. During use, the air in the heat insulation cover can be drawn out by a vacuum pump, so that the heat exchange box can be insulated by the internal vacuum heat insulation cover, thereby effectively avoiding heat waste. Furthermore, the vacuum degree of the heat insulation box can be increased by the sealing mechanism, which further improves the heat preservation effect. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 For the present utility model Figure 1 A three-dimensional sectional view;

[0016] Figure 3 For the present utility model Figure 2 A 3D view of the heat exchange tubes;

[0017] Figure 4 For the present utility model Figure 2 Enlarged view of the structure of part A.

[0018] In the diagram: 1. Heat exchange box; 2. Insulation cover; 3. Air inlet; 4. Air outlet; 5. Vacuum tube; 6. Sealing mechanism; 7. Connecting pipe; 8. Sealing cover; 9. Heat exchange tube; 10. Heat exchange plate; 11. Drain pipe; 12. Water supply pipe; 13. Hot air return pipe; 14. Heat exchange plate; 15. Filter screen; 61. Fixing strip; 62. Connecting nail; 63. Sealing seat; 64. Sealing ring; 65. Spring. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 A segmented surface cooler drying air heating device includes a heat exchange box 1, an insulation cover 2 fixedly connected to the outside of the heat exchange box 1, an air inlet 3 at the right end of the heat exchange box 1, an air outlet 4 at the left end of the heat exchange box 1, a vacuum tube 5 fixedly connected to the upper left part of the insulation cover 2, a sealing mechanism 6 provided inside the vacuum tube 5, a plurality of evenly distributed heat exchange tubes 9 fixedly connected to the inner left part of the heat exchange box 1, heat exchange plates 10 fixedly connected to the outside of the heat exchange tubes 9, a water supply pipe 12 fixedly connected to the upper end of the insulation cover 2, a drain pipe 11 fixedly connected to the lower end of the insulation cover 2, a hot air return pipe 13 fixedly connected to the inner right part of the heat exchange box 1, and a heat exchange plate 14 fixedly connected to the outside of the hot air return pipe 13.

[0021] Please see Figure 1-4 The upper end of the vacuum tube 5 is connected to the connecting pipe 7 by a thread, and the outer side of the connecting pipe 7 is connected to the sealing cap 8 by a thread. The connecting pipe 7 can be connected to the pipeline of the vacuum pump. The water supply pipe 12 is fixedly connected to the heat exchange tube 9, and the drain pipe 11 is fixedly connected to the heat insulation cover 2. The heat exchange tube 9 is fixedly connected to the heat insulation cover 2. The water supply pipe 12 can introduce hot water into the interior of the heat exchange tube 9. The filter screen 15 is fixedly connected to the middle of the inner side of the heat exchange box 1. The heat exchange plate 10 is fixedly connected to the heat exchange box 1. The filter screen 15 can divide the interior of the heat exchange box 1 into a high temperature zone and a low temperature zone. The heat exchange plate 14 is located inside the heat exchange box 1. There are multiple heat exchange plates 14. The multiple heat exchange plates 14 are evenly distributed on the outer side of the hot air return pipe 13. The multiple heat exchange plates 14 can increase the heat exchange efficiency.

[0022] Please see Figure 1-4The sealing mechanism 6 includes a fixing strip 61. The fixing strip 61 is fixedly connected to the upper part of the inner wall of the vacuum tube 5. A connecting pin 62 is slidably connected inside the fixing strip 61. A sealing seat 63 is fixedly connected to the lower end of the connecting pin 62. A sealing ring 64 is fixedly connected to the lower part of the inner wall of the vacuum tube 5. A spring 65 is provided on the outside of the connecting pin 62. The sealing ring 64 contacts the sealing seat 63. The sealing seat 63 can seal the vacuum tube 5 through the sealing ring 64. One end of the spring 65 is fixedly connected to the fixing strip 61, and the other end of the spring 65 is fixedly connected to the sealing seat 63. The spring 65 can support the sealing seat 63 through its elastic force.

[0023] The specific implementation process of this utility model is as follows: When in use, remove the sealing cover 8, and then connect the pipeline of the vacuum pump to the connecting pipe 7. After connection, start the vacuum pump. When the suction force generated by the vacuum pump is greater than the elastic force of the spring 65, the sealing seat 63 moves. During the movement of the sealing seat 63, the spring 65 can be compressed. When the sealing seat 63 is separated from the sealing ring 64, the inside of the heat insulation cover 2 can be evacuated. After the vacuum is completed, stop the vacuum pump. After the force on the sealing seat 63 disappears, the spring 65 returns to its original position. The spring 65 can drive the sealing seat 63 to slide into the inside of the sealing ring 64 through its elastic force, thus completing the heat insulation of the heat exchange box 1.

[0024] When hot air flows inside the hot air return pipe 13, it can heat the airflow entering the air inlet 3 at a low temperature through the heat exchange plate 14. Then, hot water is injected into the heat exchange tube 9 through the water supply pipe 12. When the hot water flows inside the heat exchange tube 9, it can heat the airflow after the low temperature heating through the heat exchange tube 9 and the heat exchange plate 10, thereby improving the heating quality of the airflow and effectively reducing the waste of resources.

[0025] 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 segmented surface cooler drying air heating device, comprising a heat exchange box (1), characterized in that: The heat exchange box (1) is fixedly connected to an insulation cover (2) on the outside. An air inlet (3) is provided at the right end of the heat exchange box (1). An air outlet (4) is provided at the left end of the heat exchange box (1). A vacuum tube (5) is fixedly connected to the upper left part of the insulation cover (2). A sealing mechanism (6) is provided inside the vacuum tube (5). A plurality of evenly distributed heat exchange tubes (9) are fixedly connected to the inner left part of the heat exchange box (1). A heat exchange plate (10) is fixedly connected to the outside of the heat exchange tubes (9). A water supply pipe (12) is fixedly connected to the upper end of the insulation cover (2). A drain pipe (11) is fixedly connected to the lower end of the insulation cover (2). A hot air return pipe (13) is fixedly connected to the inner right part of the heat exchange box (1). A heat exchange plate (14) is fixedly connected to the outside of the hot air return pipe (13).

2. The segmented surface cooler drying air heating device according to claim 1, characterized in that: The upper end of the vacuum tube (5) is connected to a connecting tube (7) by a thread, and the outer side of the connecting tube (7) is connected to a sealing cap (8) by a thread.

3. The segmented surface cooler drying air heating device according to claim 1, characterized in that: The water supply pipe (12) is fixedly connected to the heat exchange pipe (9), the drain pipe (11) is fixedly connected to the heat insulation cover (2), and the heat exchange pipe (9) is fixedly connected to the heat insulation cover (2).

4. The segmented surface cooler drying air heating device according to claim 1, characterized in that: A filter screen (15) is fixedly connected to the inner middle of the heat exchange box (1), and the heat exchange plate (10) is fixedly connected to the heat exchange box (1).

5. The segmented surface cooler drying air heating device according to claim 1, characterized in that: The heat exchange plate (14) is located inside the heat exchange box (1). There are multiple heat exchange plates (14), and the multiple heat exchange plates (14) are evenly distributed on the outside of the hot air return pipe (13).

6. The segmented surface cooler drying air heating device according to claim 1, characterized in that: The sealing mechanism (6) includes a fixing strip (61), the upper part of the inner wall of the vacuum tube (5) is fixedly connected to the fixing strip (61), the inside of the fixing strip (61) is slidably connected to the connecting pin (62), the lower end of the connecting pin (62) is fixedly connected to the sealing seat (63), the lower part of the inner wall of the vacuum tube (5) is fixedly connected to the sealing ring (64), the outside of the connecting pin (62) is provided with a spring (65), and the sealing ring (64) is in contact with the sealing seat (63).

7. A segmented surface cooler drying air heating device according to claim 6, characterized in that: One end of the spring (65) is fixedly connected to the fixing strip (61), and the other end of the spring (65) is fixedly connected to the sealing seat (63).