Fresh air treatment chamber with heat recovery function

Abstract

The utility model provides a fresh air processing chamber with a heat recovery function. The fresh air processing chamber comprises a building body, a filtering air passing module, a first heat exchanger and a second heat exchanger. The building body is provided with a containing space, and a first partition wall dividing the containing space into an air inlet cavity and an air conditioner room is arranged in the containing space. The filtering air passing module can push the fresh air to move towards the air conditioner room and filter the fresh air. The first heat exchanger can be arranged on the exhaust fan. The second heat exchanger is arranged in the first partition wall and provided with an airflow channel and a second heat exchange tube bundle located in the airflow channel, the second heat exchange tube bundle communicates with the first heat exchanger through a connecting pipeline, and the second heat exchanger can work together with the first heat exchanger so as to recover heat brought out by the exhaust fan in winter. Or the cooling capacity brought out by the exhaust fan is recycled in summer. According to the fresh air processing chamber with the heat recovery function, energy consumption of an air conditioning unit can be reduced, production and living cost is reduced, and practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of fresh air systems, and in particular relates to a fresh air processing chamber with heat recovery. Background Art

[0002] In pharmaceutical factories, a large number of full air conditioning systems are usually installed, which require a large amount of fresh air. Therefore, a fresh air treatment room is often set up in the air-conditioning room of the factory. The fresh air is centrally processed, so the air-conditioning unit can remove the primary filtration section and the preheating section used in northern regions. The air-conditioning unit delivers the fresh air in the air-conditioning room to other spaces, and other spaces use exhaust fans to introduce indoor air and discharge it to the outside, which can save investment, ensure air volume, and have relatively low maintenance costs.

[0003] In the prior art, in cold seasons, the temperature of fresh air entering the air-conditioning room is low. Although the northern region has a preheating stage, frost will still form on the air-conditioning unit, and a large amount of energy will be consumed in the heating process of the air-conditioning unit. In hot seasons, the temperature of fresh air entering the air-conditioning room is high, and a large amount of energy will be consumed in the cooling process of the air-conditioning unit. Utility Model Content

[0004] The embodiment of the utility model provides a fresh air treatment chamber with heat recovery, aiming to achieve the purpose of preheating or precooling the fresh air before entering the air-conditioning room in the fresh air treatment chamber.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a fresh air treatment chamber with heat recovery, comprising:

[0006] A building body having a housing space, wherein a first partition wall is provided in the housing space, and the first partition wall divides the housing space into an air inlet cavity and an air conditioning room;

[0007] A filtering air outlet module is arranged on the building body and located in the air inlet cavity, and is used to push the fresh air to move toward the air conditioning room and filter the fresh air;

[0008] A first heat exchanger is used to be arranged on the exhaust fan;

[0009] The second heat exchanger is arranged in the first partition wall. The second heat exchanger has an air flow channel connecting the air inlet cavity and the air-conditioning room, and has a second heat exchange tube bundle located in the air flow channel. The second heat exchange tube bundle is connected to the first heat exchanger through a connecting pipeline. The second heat exchanger is used to work together with the first heat exchanger to recover the heat brought out by the exhaust fan in winter, or to recover the cold brought out by the exhaust fan in summer.

[0010] In a possible implementation, the first heat exchanger has an air outlet channel connected to an exhaust port of an exhaust fan, and has a first heat exchange tube bundle located in the air outlet channel, and the first heat exchange tube bundle is connected to the second heat exchange tube bundle through the connecting pipeline to form a closed loop.

[0011] In a possible implementation, a circulation pump is provided on the connecting pipeline.

[0012] In a possible implementation manner, a preheater is further provided on the first partition wall.

[0013] In a possible implementation, the filtering and ventilation module includes:

[0014] The second partition wall is provided with two, and the two second partition walls are arranged in the air inlet cavity at intervals to divide the air inlet cavity into a settling chamber, an air suction chamber and a preheating chamber, and the preheating chamber is connected to the air conditioning room;

[0015] A waterproof shutter is arranged on the wall of the building body to connect the settling chamber with the outside air;

[0016] A filtering structure, disposed on the second partition wall between the settling chamber and the suction chamber;

[0017] There are multiple pressurizing fans, and each of the pressurizing fans is arranged on the second partition wall between the suction chamber and the preheating chamber.

[0018] In a possible implementation, the filter structure is a wound filter.

[0019] In this implementation, the filtering and ventilation module installed in the building can ensure the centralized processing of fresh air, which can relatively reduce the filtering load of the air conditioning unit. By connecting the second heat exchanger installed in the building with the first heat exchanger installed on the exhaust fan, the heat or cold in the exhaust fan can be recovered, and the fresh air entering the air conditioning room can be preheated or precooled, which can reduce the energy consumption of the air conditioning unit to a certain extent, thereby reducing the cost of production and life, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a fresh air treatment chamber with heat recovery provided in an embodiment of the utility model;

[0021] Description of reference numerals:

[0022] 10. Building body; 11. First partition wall; 20. Filter ventilation module; 21. Second partition wall; 22. Waterproof shutters; 23. Filter structure; 24. Pressurized fan; 30. First heat exchanger; 40. Second heat exchanger; 50. Circulation pump; 60. Preheater; 70. Exhaust fan. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] See also Figure 1 , the fresh air treatment room with heat recovery provided by the utility model is now described. The fresh air treatment room with heat recovery includes a building body 10, a filtering air outlet module 20, a first heat exchanger 30 and a second heat exchanger 40. The building body 10 has a accommodating space, and a first partition wall 11 is provided in the accommodating space. The first partition wall 11 divides the accommodating space into an air inlet cavity and an air-conditioning room. The filtering air outlet module 20 is arranged on the building body 10 and is located in the air inlet cavity. It can push the fresh air to move in the direction of the air-conditioning room and filter the fresh air. The first heat exchanger 30 can be arranged on the exhaust fan 70. The second heat exchanger 40 is arranged in the first partition wall 11. The second heat exchanger 40 has an air flow channel connecting the air inlet cavity and the air-conditioning room, and has a second heat exchange tube bundle located in the air flow channel. The second heat exchange tube bundle is connected to the first heat exchanger 30 through a connecting pipe. The second heat exchanger 40 can work together with the first heat exchanger 30 to recover the heat brought out by the exhaust fan 70 in winter, or recover the cold brought out by the exhaust fan 70 in summer.

[0025] Compared with the prior art, the fresh air treatment room with heat recovery provided in this embodiment can ensure the centralized processing of fresh air by the filter air outlet module 20 arranged in the building body 10, and can relatively reduce the filter load of the air conditioning unit. By connecting the second heat exchanger 40 arranged in the building body 10 with the first heat exchanger 30 arranged on the exhaust fan 70, the heat or cold in the exhaust fan 70 can be recovered, and the fresh air entering the air conditioning room can be preheated or precooled, which can reduce the energy consumption of the air conditioning unit to a certain extent, thereby reducing the cost of production and life, and has strong practicality.

[0026] It should be noted that, regarding the exhaust fan 70, there may be multiple exhaust fans 70, and correspondingly, multiple first heat exchangers 30 corresponding to each exhaust fan 70 may be simultaneously provided, and each first heat exchanger 30 is connected in series on the connecting pipeline, as shown in FIG. Figure 1 .

[0027] In some embodiments, the first heat exchanger 30 may be configured as follows: Figure 1 See the structure shown. Figure 1 The first heat exchanger 30 has an air outlet channel connected to the exhaust port of the exhaust fan 70, and has a first heat exchange tube bundle located in the air outlet channel. The first heat exchange tube bundle is connected to the second heat exchange tube bundle through a connecting pipeline to form a closed loop.

[0028] The first heat exchanger 30 may have the same structure as the second heat exchanger 40. The two ends of the first heat exchange tube bundle are connected to the two ends of the second heat exchange tube bundle through two connecting pipes, respectively, which can ensure the circulation of the heat transfer medium between the first heat exchange tube bundle and the second heat exchange tube bundle, thereby ensuring heat recovery.

[0029] As an implementable method of this embodiment, an auxiliary pipe is provided between the two connecting pipes, and a first solenoid valve is provided on the auxiliary pipe, and an electric heater is provided at the same time, and a second solenoid valve is provided on each of the two connecting pipes. After the two second solenoid valves are closed, the first solenoid valve is opened, and the second heat exchange tube bundle forms a closed loop with the two connecting pipes and the auxiliary pipe. At this time, the electric heater is turned on to ensure that in the morning in winter or at the beginning of heating, when the temperature of the gas discharged by the exhaust fan 70 cannot be lowered and heat recovery cannot be achieved, the second heat exchange tube bundle is heated, thereby ensuring that the fresh air entering the air conditioning room is effectively preheated.

[0030] In some embodiments, the connecting pipeline can be Figure 1 See the structure shown. Figure 1 A circulation pump 50 is provided on the connecting pipeline. The setting of the circulation pump 50 can ensure the flow of the heat transfer medium, thereby ensuring the preheating or precooling effect.

[0031] In some embodiments, the first partition wall 11 may be formed as follows: Figure 1 See the structure shown. Figure 1 A preheater 60 is also provided on the first partition wall 11. The setting of the preheater 60 can mainly adapt to the winter in the north. The preheater 60 and the second heat exchanger 40 can simultaneously preheat the fresh air entering the air-conditioning room, thereby avoiding frost in the air-conditioning room and reducing energy consumption, which is highly practical.

[0032] In some embodiments, the filter air outlet module 20 may be configured as follows: Figure 1 See the structure shown. Figure 1The filtering and air-exiting module 20 includes a second partition wall 21, a waterproof louver 22, a filtering structure 23 and a pressurizing fan 24. Two second partition walls 21 are provided, and the two second partition walls 21 are arranged in the air inlet cavity at intervals to divide the air inlet cavity into a settling chamber, a suction chamber and a preheating chamber, and the preheating chamber is connected to the air-conditioning room. The waterproof louver 22 is arranged on the wall of the building 10 to connect the settling chamber with the outside air. The filtering structure 23 is arranged on the second partition wall 21 between the settling chamber and the suction chamber. There are multiple pressurizing fans 24, and each pressurizing fan 24 is arranged on the second partition wall 21 between the suction chamber and the preheating chamber.

[0033] The waterproof shutter 22 can perform primary filtration on the fresh air entering the settling chamber, and the filtering structure 23 can ensure fine filtration of the fresh air entering the suction chamber from the settling chamber, and both can ensure the cleanliness of the fresh air. The booster fan 24 can ensure the flow of the air flow and ensure the positive pressure in the air-conditioning room, thereby reducing the energy consumption of the air-conditioning unit to a certain extent.

[0034] The pressurized fan 24 and the waterproof shutter 22 are both existing technologies and will not be described in detail here.

[0035] In some embodiments, the filter structure 23 may be configured as follows: Figure 1 See the structure shown. Figure 1 The filter structure 23 is a winding filter, or an automatic winding air filter. The winding filter usually adopts a winding filter element design, and the filter element is covered with a filter screen or filter medium, which can effectively capture particulate matter in the air. When the dust and dirt in the filter element accumulate to a certain extent, the device will automatically start the winding system, wind up the old filter element, and unfold the new filter element at the same time to ensure the filtering effect and air flow, thereby ensuring the long-term filtering effect.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Fresh air treatment room with heat recovery, characterized in that: include: A building body having a housing space, wherein a first partition wall is provided in the housing space, and the first partition wall divides the housing space into an air inlet cavity and an air conditioning room; A filtering air outlet module is provided on the building body and is located in the air inlet cavity, and is used to push the fresh air toward the air conditioning room and filter the fresh air; A first heat exchanger is used to be arranged on the exhaust fan; The second heat exchanger is arranged in the first partition wall. The second heat exchanger has an air flow channel connecting the air inlet cavity and the air-conditioning room, and has a second heat exchange tube bundle located in the air flow channel. The second heat exchange tube bundle is connected to the first heat exchanger through a connecting pipeline. The second heat exchanger is used to work together with the first heat exchanger to recover the heat brought out by the exhaust fan in winter, or to recover the cold brought out by the exhaust fan in summer.

2. The fresh air treatment chamber with heat recovery according to claim 1, characterized in that: The first heat exchanger has an air outlet channel connected to the air outlet of the exhaust fan, and has a first heat exchange tube bundle located in the air outlet channel. The first heat exchange tube bundle is connected to the second heat exchange tube bundle through the connecting pipeline to form a closed loop.

3. The fresh air treatment chamber with heat recovery according to claim 2, characterized in that: A circulating pump is arranged on the connecting pipeline.

4. The fresh air treatment chamber with heat recovery according to any one of claims 1 to 3, characterized in that: The first partition wall is also provided with a preheater.

5. The fresh air treatment chamber with heat recovery according to any one of claims 1 to 3, characterized in that: The filtering and ventilation module comprises: The second partition wall is provided with two, and the two second partition walls are arranged in the air inlet cavity at intervals to divide the air inlet cavity into a settling chamber, an air suction chamber and a preheating chamber, and the preheating chamber is connected to the air conditioning room; A waterproof shutter is arranged on the wall of the building body to connect the settling chamber with the outside air; A filtering structure, arranged on the second partition wall between the settling chamber and the suction chamber; There are multiple pressurizing fans, and each of the pressurizing fans is arranged on the second partition wall between the suction chamber and the preheating chamber.

6. The fresh air treatment chamber with heat recovery according to claim 5, characterized in that: The filtering structure is a winding filter.

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