A dehumidification system with internal and external double circulation air ducts

Abstract

The utility model discloses a dehumidification system with internal and external double circulation air ducts, comprising a dehumidifier, a fan and a circulation air duct; the fan comprises an internal circulation fan and an external circulation fan; the circulation air duct comprises an internal circulation air duct and an external circulation air duct; the internal circulation fan is used to promote the circulation of air in the internal circulation air duct and the warehouse; the external circulation fan is used to promote the circulation of air in the external circulation air duct and the warehouse; the dehumidifier is arranged in the warehouse, and the circulation air duct is arranged along the inner wall of the warehouse. The dehumidification system with internal and external double circulation air ducts can effectively ensure the uniformity of humidity in the warehouse.

Description

Technical Field

[0001] The utility model relates to a dehumidification system with internal and external double circulation air ducts. Background Art

[0002] As the country pays more and more attention to agriculture and provides more and more support, the requirements for high-precision constant temperature and humidity equipment in agriculture and other fields are becoming more and more numerous and higher.

[0003] Specific places such as cold storage generally adopt the method of refrigeration equipment + dehumidifier to solve the humidity problem. In recent years, the scope of using new equipment and technologies with refrigeration and dehumidification functions has become increasingly widespread. Due to its working principle, the temperature difference in the warehouse is large (the temperature difference reaches 8-10°C when the humidity is 45% in general situations), and the humidity difference is also large (typically, the humidity rises by about 5% within 1-2 minutes after shutdown, and the fluctuation is large).

[0004] Analysis of the reasons why the existing technology has the above shortcomings: In special constant temperature and humidity occasions such as cold storage, when refrigeration and dehumidification are used, the evaporator fan motor speed in the warehouse is relatively low due to the refrigeration and dehumidification principle; the refrigeration and dehumidification parameter perception is achieved through sensors, and the lower the temperature and humidity, the lower the wind speed, the smaller the affected range; coupled with factors such as the stacking of goods in the warehouse hindering air flow, the circulation range formed is limited, and the temperature and humidity are difficult to penetrate into every corner, resulting in uneven temperature and humidity in the warehouse, which has a greater negative impact on the storage of goods.

[0005] Therefore, it is necessary to design a new dehumidification system. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a dehumidification system with internal and external double circulation air ducts, and the dehumidification system with internal and external double circulation air ducts can effectively ensure the uniformity of humidity in the warehouse.

[0007] The technical solution of the utility model is as follows:

[0008] A dehumidification system with internal and external double circulation air ducts, comprising a dehumidifier, a fan and a circulation air duct;

[0009] The fan includes an internal circulation fan and an external circulation fan;

[0010] The circulation air duct includes an inner circulation air duct and an outer circulation air duct;

[0011] The internal circulation fan is used to promote the circulation of air in the internal circulation duct and warehouse;

[0012] The external circulation fan is used to promote the circulation of air in the external circulation duct and warehouse;

[0013] The dehumidifier is installed in the warehouse, and the circulating air duct is set along the inner wall of the warehouse.

[0014] The side wall of the warehouse has a first interlayer, the top of the warehouse has a second interlayer, the side wall and the top plate of the warehouse are provided with air holes, the air holes are used to connect the first interlayer and the second interlayer with the middle cavity of the warehouse; the first interlayer is connected with the second interlayer; the first interlayer, the second interlayer and the air holes form the circulating air duct;

[0015] The fan is arranged in the first interlayer or the second interlayer, or the fan is arranged outside the air hole (not in the interlayer, but in the warehouse).

[0016] The root of the side wall is provided with a bottom inner circulation air hole and a bottom outer circulation air hole; the bottom inner circulation air hole is located above the bottom outer circulation air hole;

[0017] The top plate of the warehouse is equipped with top internal circulation air holes and top external circulation air holes;

[0018] The top inner circulation air hole, the second interlayer, the first interlayer and the bottom inner circulation air hole form the inner circulation air duct;

[0019] The top external circulation air holes, the second interlayer, the first interlayer and the bottom external circulation air holes form the external circulation air duct.

[0020] The internal circulation fan is arranged below the internal circulation air hole at the top; the external circulation fan is arranged at the external circulation air hole at the top and is located on the outside of the second interlayer.

[0021] The number of the circulating air ducts is 2 or 4; and they are relatively symmetrically arranged (i.e., the front and rear side walls are arranged, and / or

[0022] Or set on the left and right side walls). It is also possible to configure more circulation ducts according to irregular environments.

[0023] For example, 3 to 10 sets of circulating air ducts are acceptable.

[0024] A controller is also included; both the dehumidifier and the fan are controlled by the controller.

[0025] The dehumidifier is arranged on the top of the warehouse, and the air outlet of the dehumidifier is connected with the external circulation air hole at the top of the external circulation air duct.

[0026] The warehouse is a cold storage.

[0027] The dehumidifier is a refrigeration dehumidifier.

[0028] Beneficial effects:

[0029] The utility model has a dehumidification system with internal and external double circulation air ducts. One or more sets of internal circulation air duct systems are configured in specific occasions such as cold storage. Universal fans are selected as the power source, and top-in and bottom-out or bottom-in and top-out methods are adopted to make the air in the warehouse flow fully, greatly reduce the temperature and humidity dead corners in the warehouse, and effectively improve the uniformity of temperature and humidity in the warehouse.

[0030] The utility model can greatly improve the uniformity of temperature and humidity in a specific constant temperature and humidity place in a warehouse, and meet the needs of a high-precision constant temperature and humidity place. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of a dehumidification system with internal and external double circulation air ducts (top view);

[0032] Figure 2 It is a schematic diagram of the overall structure of a dehumidification system with internal and external double circulation air ducts (left view);

[0033] Figure 3 It is a schematic diagram of the overall structure of a dehumidification system with internal and external double circulation air ducts (front view);

[0034] Explanation of reference numerals: 1-second interlayer, 2-dehumidifier, 31-internal circulation fan, 32-external circulation fan; 4-first interlayer, 51-bottom internal circulation air hole, 52-bottom external circulation air hole, 53-top internal circulation air hole, 54-top external circulation air hole. 61-internal circulation air duct, 62-external circulation air duct. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0036] Example 1: Figure 1-3 , a dehumidification system with internal and external double circulation air ducts, including a dehumidifier with refrigeration function (i.e., refrigeration dehumidifier), a fan and a circulation air duct;

[0037] The fan includes an internal circulation fan and an external circulation fan;

[0038] The circulation air duct includes an inner circulation air duct and an outer circulation air duct;

[0039] The internal circulation fan is used to promote the circulation of air in the internal circulation duct and warehouse;

[0040] The external circulation fan is used to promote the circulation of air in the external circulation duct and warehouse;

[0041] The dehumidifier is installed in the warehouse, and the circulating air duct is set along the inner wall of the warehouse.

[0042] The side wall of the warehouse is provided with a first interlayer, the top of the warehouse is provided with a second interlayer, and the side wall and the top plate of the warehouse are provided with air holes; the fan is arranged outside the air hole (not in the interlayer, but in the warehouse).

[0043] The specific air duct design and fan arrangement are as follows:

[0044] A bottom inner circulation air hole 51 and a bottom outer circulation air hole 52 are provided at the root of the side wall; the bottom inner circulation air hole is located above the bottom outer circulation air hole; a top inner circulation air hole 53 and a top outer circulation air hole 54 are provided at the top plate of the warehouse; the top inner circulation air hole, the second interlayer, the first interlayer and the bottom inner circulation air hole form the inner circulation air duct; the top outer circulation air hole, the second interlayer, the first interlayer and the bottom outer circulation air hole form the outer circulation air duct.

[0045] The internal circulation fan is arranged below the internal circulation air hole at the top; the external circulation fan is arranged at the external circulation air hole at the top and is located on the outside of the second interlayer.

[0046] There are two circulating air ducts, which are relatively symmetrically arranged ( Figure 1 (the left and right side walls are set in the middle).

[0047] It also includes a controller (using PLC, etc.); the dehumidifier and the fan are both controlled by the controller to achieve temperature and humidity control (the specific control method is an existing mature technology).

[0048] The dehumidifier is arranged on the top of the warehouse, and the air outlet of the dehumidifier is connected with the external circulation air hole at the top of the external circulation air duct.

[0049] The warehouse is a cold storage.

[0050] After the refrigeration equipment and cooling equipment are started, one or more circulation fans in the warehouse are started synchronously to transport the air in the warehouse from the high (or low) place in the warehouse to different positions in the low (or high) place in the warehouse through the air duct; after the refrigeration and dehumidification equipment is shut down, the fan circulation system can choose to shut down synchronously, or choose to delay shutdown according to different requirements to ensure the uniformity of temperature and humidity in the warehouse.

[0051] Under the control of the controller, the refrigeration and dehumidification equipment and the fan can be stopped at the same time or with a delay, and other control circulation fan working modes can be achieved. Its function is to meet the requirements of temperature difference and humidity difference in occasions with different temperature and humidity requirements.

[0052] Comparison table of cold storage dehumidification technology performance between the dehumidification system of the utility model and the existing dehumidification system

[0053]

[0054] It can be seen that the solution of the utility model has more accurate temperature and humidity control, and the number of equipment starts and stops is reduced, which is conducive to the long-term stable operation of the equipment.

[0055] Any modifications, equivalent substitutions and improvements made within the spirit and principles of this utility model should be included in the protection scope of this utility model.

Claims

1. A dehumidification system with internal and external double circulation air ducts, characterized in that: Includes dehumidifier, fan and circulation duct; The fan includes an internal circulation fan and an external circulation fan; The circulation air duct includes an inner circulation air duct and an outer circulation air duct; The internal circulation fan is used to promote the circulation of air in the internal circulation duct and warehouse; The external circulation fan is used to promote the circulation of air in the external circulation duct and warehouse; The dehumidifier is installed in the warehouse, and the circulating air duct is set along the inner wall of the warehouse.

2. The dehumidification system with internal and external double circulation air ducts according to claim 1 is characterized in that: The side wall of the warehouse has a first interlayer, the top of the warehouse has a second interlayer, the side wall and the top plate of the warehouse are provided with air holes, the air holes are used to connect the first interlayer and the second interlayer with the middle cavity of the warehouse; the first interlayer is connected with the second interlayer; the first interlayer, the second interlayer and the air holes form the circulating air duct; The fan is arranged in the first interlayer or the second interlayer, or the fan is arranged outside the air hole.

3. The dehumidification system with internal and external double circulation air ducts according to claim 2 is characterized in that: A bottom inner circulation air hole (51) and a bottom outer circulation air hole (52) are provided at the root of the side wall; the bottom inner circulation air hole is located above the bottom outer circulation air hole; The top plate of the warehouse is provided with a top inner circulation air hole (53) and a top outer circulation air hole (54); The top inner circulation air hole, the second interlayer, the first interlayer and the bottom inner circulation air hole form the inner circulation air duct; The top external circulation air holes, the second interlayer, the first interlayer and the bottom external circulation air holes form the external circulation air duct.

4. The dehumidification system with internal and external double circulation air ducts according to claim 3 is characterized in that: The internal circulation fan is arranged below the internal circulation air hole at the top; the external circulation fan is arranged at the external circulation air hole at the top and is located on the outside of the second interlayer.

5. The dehumidification system with internal and external double circulation air ducts according to claim 1, characterized in that: The number of the circulating air ducts is 2 or 4, and they are arranged relatively symmetrically.

6. The dehumidification system with internal and external double circulation air ducts according to claim 1, characterized in that: A controller is also included; both the dehumidifier and the fan are controlled by the controller.

7. The dehumidification system with internal and external double circulation air ducts according to claim 1, characterized in that: The dehumidifier is arranged on the top of the warehouse, and the air outlet of the dehumidifier is connected with the external circulation air hole at the top of the external circulation air duct.

8. The dehumidification system with internal and external double circulation air ducts according to claim 1, characterized in that: The warehouse is a cold storage.

9. The dehumidification system with internal and external double circulation air ducts according to any one of claims 1 to 8, characterized in that: The dehumidifier is a refrigeration dehumidifier.

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