Clean air conditioning direct expansion reheat thermostatic device

Abstract

The utility model relates to direct expansion air conditioning technical field, concretely is clean air conditioning direct expansion reheats constant temperature device, the device includes main box, and the main box is the cavity structure of inside hollow, and the cavity is provided with front filter mechanism, constant temperature mechanism and rear filter mechanism from left to right in turn, and the front filter mechanism includes front filter, and the constant temperature mechanism includes dehumidification heat pipe subassembly and sets up table cooler and heating assembly respectively at dehumidification heat pipe subassembly both ends, and the rear filter mechanism includes rear filter fixed in the cavity inner wall of main box, and the rear filter is provided with activated carbon screen away from one end of table cooler. This clean air conditioning direct expansion reheats constant temperature device through setting up a plurality of differential pressure gauges in the air inlet vicinity, makes the outside gas enter the main box after receiving monitoring, the control of differential pressure is more accurate, can effectively remove gaseous pollutant and particulate and other pollutants, ensures that the air cleanliness meets the high clean environment requirement.

Description

Technical Field

[0001] This utility model relates to the field of direct expansion air conditioning technology, specifically a direct expansion reheat constant temperature device for clean air conditioning. Background Technology

[0002] The reheat thermostat of a direct expansion air conditioner is mainly used to maintain stable indoor temperature and humidity. Its core function is to achieve precise temperature and humidity control through the direct evaporation and heat recovery technology of the refrigerant.

[0003] Existing reheat thermostats in direct expansion air conditioners have complex structures and unreasonable designs. Their internal differential pressure gauges are typically located at the center of the enclosure, making it impossible to monitor the influx of outside gas and resulting in inaccurate pressure control. Furthermore, these reheat thermostats lack structures to remove gaseous and particulate contaminants, leading to poor output gas quality and air cleanliness that does not meet high-cleanliness environment requirements. Therefore, the inventors have improved the structure of the reheat thermostat. Utility Model Content

[0004] The purpose of this invention is to provide a clean air conditioning direct expansion reheat constant temperature device. This device has the advantages of simple structure and reasonable design. By setting multiple differential pressure gauges near the air inlet, the external gas is monitored after entering the main chamber, which makes the control of the differential pressure more precise. It can effectively remove gaseous pollutants and particulate pollutants, and ensure that the cleanliness of the outlet air meets the requirements of a high clean environment. This solves the problems mentioned in the above technical background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clean air conditioning direct expansion reheat constant temperature device, which includes a main housing, which is a hollow cavity structure. From left to right, a pre-filtration mechanism, a constant temperature mechanism, and a post-filtration mechanism are arranged in the cavity. The pre-filtration mechanism includes a pre-filter, which is horizontally arranged. The constant temperature mechanism includes a dehumidifying heat pipe assembly and a surface cooler and a heating assembly respectively arranged at both ends of the dehumidifying heat pipe assembly. The surface cooler, the dehumidifying heat pipe assembly, and the heating assembly are all fixed to the bottom wall of the cavity of the main housing. The post-filtration mechanism includes a post-filter fixed to the inner wall of the cavity of the main housing. An activated carbon mesh is arranged at the end of the post-filter away from the surface cooler.

[0006] Preferably, multiple differential pressure gauges are installed on one side of the pre-filter, and the multiple differential pressure gauges are arranged in a vertical direction.

[0007] Preferably, the outlet of the pre-filter faces the surface cooler, and the pre-filter and multiple differential pressure gauges are fixed to the inner wall of the main housing.

[0008] Preferably, the heating component is arranged vertically, and the heating component includes a hot water heater and an aluminum alloy fin structure.

[0009] Preferably, a fan is fixed inside the cavity of the main housing, and the fan is located at the end of the activated carbon mesh away from the post-filter.

[0010] Preferably, an air inlet pipe and an air outlet pipe are respectively provided at both ends of the main housing. The air inlet pipe and the air outlet pipe are both fixed to the upper surface of the main housing and are connected to the cavity of the main housing. The fan is located below the air outlet pipe and the air outlet of the fan is directly facing the air outlet pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a cleanroom air conditioning direct expansion reheat constant temperature device. The cleanroom air conditioning direct expansion reheat constant temperature device includes a main box, which is a hollow cavity structure. From left to right, a pre-filter mechanism, a constant temperature mechanism, and a post-filter mechanism are arranged in the cavity. The overall structure is simple and the design is reasonable. The pre-filter mechanism includes a pre-filter. Multiple differential pressure gauges are arranged on one side of the pre-filter. By setting multiple differential pressure gauges at the pre-filter, the gas pressure difference at the pre-filter is monitored in real time. The multiple differential pressure gauges are located at the end of the main box cavity near the air inlet, so that the outside gas is monitored as soon as it enters the main box. This makes the device control the pressure difference more accurate and suitable for widespread use.

[0012] 2. The post-filter mechanism in this utility model includes a post-filter fixed to the inner wall of the main housing cavity. An activated carbon mesh is provided at the end of the post-filter away from the surface cooler. By setting up the post-filter and the activated carbon mesh, the post-filter plays a role in further purifying the air. By intercepting fine particulate matter of 0.01μm to 1μm, it ensures that the cleanliness of the outlet air meets the requirements of a high-cleanliness environment. The activated carbon mesh can effectively adsorb gaseous pollutants such as formaldehyde, TVOC, and benzene, while removing particulate pollutants such as ammonia and PM2.5, resulting in higher quality output gas and strong practicality. Attached Figure Description

[0013] Figure 1 This is one of the schematic diagrams of an embodiment of the present utility model.

[0014] Figure 2 This is a second schematic diagram of an embodiment of the present utility model.

[0015] The reference numerals and names in the diagram are as follows: 1. Main housing; 2. Pre-filter mechanism; 21. Pre-filter; 22. Differential pressure gauge; 3. Thermostatic mechanism; 31. Cooler; 32. Dehumidifying heat pipe assembly; 33. Heating assembly; 4. Post-filter mechanism; 41. Post-filter; 42. Activated carbon mesh; 5. Fan; 6. Inlet duct; 7. Outlet duct. Detailed Implementation

[0016] 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.

[0017] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0018] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0019] Please see Figure 1 The present invention provides an embodiment of a clean air conditioning direct expansion reheat constant temperature device, which includes a main housing 1. The main housing 1 is a hollow cavity structure. From left to right, a pre-filter mechanism 2, a constant temperature mechanism 3, and a post-filter mechanism 4 are arranged in the cavity. A fan 5 is fixed in the cavity of the main housing 1. An air inlet pipe 6 and an air outlet pipe 7 are respectively arranged at both ends of the main housing 1. The air inlet pipe 6 and the air outlet pipe 7 are both fixed to the upper end face of the main housing 1 and are connected to the cavity of the main housing 1. The fan 5 is arranged below the air outlet pipe 7, and the air outlet of the fan 5 is directly facing the air outlet pipe 7.

[0020] Please see Figure 2The pre-filter mechanism 2 includes a pre-filter 21, which is horizontally positioned and employs a multi-bag structure design. An internal support grid is configured to prevent filter bag deformation. Multiple differential pressure gauges 22 are installed on one side of the pre-filter 21. In this embodiment, the differential pressure gauges 22 are MAGNEHELIC 2000 models. These gauges are arranged vertically and monitor the gas pressure difference at the pre-filter 21 in real time. Because the gauges 22 are located within the main housing 1 cavity near the air inlet, the external gas is monitored immediately upon entering the main housing 1, resulting in more precise pressure control. The constant temperature mechanism 3 includes a dehumidifying heat pipe assembly 32 and surface coolers 31 and heating components 33 respectively located at both ends of the dehumidifying heat pipe assembly 32. The surface coolers 31, dehumidifying heat pipe assembly 32, and heating components 33 are all fixed to the bottom wall of the main housing 1 cavity. The outlet of the pre-filter 21 faces the surface cooler. The device 31, and the pre-filter 21 and multiple differential pressure gauges 22 are all fixed to the inner wall of the cavity of the main housing 1. The heating component 33 is set vertically and includes a hot water heater and an aluminum alloy fin structure. The hot water heater is the core component. It provides high-temperature water through an external hot water supply (such as a boiler room or heat exchange equipment) and transfers heat to the air flowing through the heater to achieve the heating function. The hot water heater adopts a streamlined aluminum alloy fin design, which conforms to the aerodynamic principle and can effectively increase the heat exchange area and improve the thermal efficiency. This structure works in conjunction with the resistance wire to ensure that the air can efficiently absorb heat when it flows through.

[0021] Please refer to it again. Figure 2 The post-filter mechanism 4 includes a post-filter 41 fixed to the inner wall of the main housing 1. An activated carbon mesh 42 is provided at the end of the post-filter 41 away from the surface cooler 31. The post-filter 41 plays a role in further purifying the air. By intercepting fine particulate matter of 0.01μm to 1μm, the activated carbon mesh 42 can effectively adsorb gaseous pollutants such as formaldehyde, TVOC, and benzene, while removing particulate pollutants such as ammonia and PM2.5, so that the quality of the output gas is higher and the cleanliness of the air outlet meets the requirements of a high-cleanliness environment. The post-filter 41 adopts a high-efficiency filter. The fan 5 is located at the end of the activated carbon mesh 42 away from the post-filter 41. In addition, in this embodiment, the structure of the pre-filter 21, post-filter 41, surface cooler 31 and dehumidifying heat pipe assembly 32 is the prior art, and will not be described in detail here.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cleanroom air conditioning direct expansion reheat constant temperature device, comprising a main housing (1), characterized in that: The main housing (1) is a hollow cavity structure. From left to right, a pre-filter mechanism (2), a constant temperature mechanism (3), and a post-filter mechanism (4) are arranged in the cavity. The pre-filter mechanism (2) includes a pre-filter (21) which is horizontally arranged. The constant temperature mechanism (3) includes a dehumidifying heat pipe assembly (32) and a surface cooler (31) and a heating assembly (33) respectively arranged at both ends of the dehumidifying heat pipe assembly (32). The surface cooler (31), the dehumidifying heat pipe assembly (32), and the heating assembly (33) are all fixed to the bottom wall of the cavity of the main housing (1). The post-filter mechanism (4) includes a post-filter (41) fixed to the inner wall of the cavity of the main housing (1). An activated carbon mesh (42) is arranged at the end of the post-filter (41) away from the surface cooler (31).

2. The cleanroom air conditioning direct expansion reheat constant temperature device according to claim 1, characterized in that: A plurality of differential pressure gauges (22) are provided on one side of the pre-filter (21), and the plurality of differential pressure gauges (22) are arranged in a vertical direction.

3. The cleanroom air conditioning direct expansion reheat constant temperature device according to claim 2, characterized in that: The outlet of the pre-filter (21) faces the surface cooler (31), and the pre-filter (21) and multiple differential pressure gauges (22) are fixed to the inner wall of the cavity of the main housing (1).

4. The cleanroom air conditioning direct expansion reheat constant temperature device according to claim 1, characterized in that: The heating component (33) is vertically arranged and includes a hot water heater and an aluminum alloy fin structure.

5. The cleanroom air conditioning direct expansion reheat constant temperature device according to claim 1, characterized in that: A fan (5) is fixed inside the cavity of the main housing (1), and the fan (5) is located at the end of the activated carbon mesh (42) away from the post-filter (41).

6. The cleanroom air conditioning direct expansion reheat constant temperature device according to claim 1, characterized in that: The main housing (1) is provided with an air inlet pipe (6) and an air outlet pipe (7) at both ends. The air inlet pipe (6) and the air outlet pipe (7) are both fixed to the upper end face of the main housing (1), and the air inlet pipe (6) and the air outlet pipe (7) are both connected to the cavity of the main housing (1).

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