CN207515060U - A kind of distribution Fresh air handing unit - Google Patents

Abstract

The utility model relates to a distributed fresh air processing unit, comprising a first air inlet end, a first air supply end, a semiconductor refrigeration unit located between the first inlet end and the first air supply end, and the semiconductor refrigeration unit includes The fresh air is sent to the indoor first heat exchanger from the first air supply end for cold and heat conversion through the first air inlet port, and the second heat exchanger is used to carry out cold and heat conversion of the outdoor wind opposite to the first heat exchanger. A heat exchanger and a semiconductive refrigeration sheet connecting the first heat exchanger and the second heat exchanger. In this way, the distributed fresh air processing unit that can effectively combine semiconductor refrigeration and fresh air purification treatment to effectively introduce and process fresh air can effectively meet the fresh air demand in the building, and is suitable for various public buildings and other occasions. It can effectively shorten the The introduction of fresh air into the path and the reduction of processing energy consumption help to achieve a better indoor environment creation effect.

Description

A distributed fresh air processing unit

technical field

The utility model relates to the energy field, in particular to a distributed fresh air processing unit in the field of HVAC systems.

Background technique

The regulation process of the building's indoor thermal and humid environment includes the regulation of indoor temperature and humidity. Commercial building air-conditioning systems usually need to send a certain amount of outdoor fresh air to meet the health needs of indoor personnel. How to effectively introduce outdoor fresh air into the room and how to process the fresh air to reasonable parameters are important issues that need to be paid attention to in the air conditioning system. In a conventional air conditioning system, a centralized fresh air processing unit or a fresh air/return air processing unit is usually designed, which uses cold and hot media to centralize and uniformly process the fresh air, and then transports the fresh air to the end-demand room through the air duct. In this processing method, the fresh air needs to go through a long transmission path to be sent to the end room, and the long transmission distance leads to high energy consumption of the transmission fan. However, in the actual operation of the air-conditioning system of commercial buildings in my country, due to the constraints of energy consumption and other factors, the actual operating conditions of the fresh air treatment units are not ideal, and the fresh air units in many buildings do not operate at all, which also makes it impossible for the end rooms to Effective fresh air supply, indoor environmental conditions or air quality conditions are not effectively guaranteed. How to effectively improve the indoor environment and meet the fresh air needs of people as much as possible is an important issue that needs to be considered in the process of delivering fresh air indoors.

From the perspective of the purpose and effect of delivering fresh air indoors, if the distributed processing method can be used to introduce fresh air nearby and process it, it can effectively shorten the fresh air delivery path, reduce the energy consumption of the delivery, and save the fresh air room. And the space occupied by the air supply duct, the fresh air introduced nearby is also more convenient to be transported to the nearby personnel activity area. Based on this distributed fresh air treatment concept, there are various small mechanical fresh air treatment units at present, but they are mostly used in residential buildings or small buildings. For the air conditioning systems of large public buildings, there is still little involved in how to configure and how to design them. This distributed fresh air processing unit.

On the other hand, with the increasingly serious impact of smog and air quality problems, fresh air treatment units generally have the function of purification treatment, and the corresponding fresh air heating and cooling functions are an important development direction for further improving the functional mode of fresh air treatment units. Most of the existing fresh air treatment units use electric heating to heat the fresh air. The outdoor fresh air is heated only by electric energy consumption, which requires a large power distribution capacity and consumes high-grade electric energy to directly convert it into heat. , the level of energy utilization is low. Compared with the conventional vapor compression refrigeration method, the semiconductor refrigeration method has the characteristics of no vibration, no refrigerant, simple and reliable work, etc. It shows certain advantages in the range of small cooling capacity, and occupies a small space. On the basis of ensuring functional requirements It helps to reduce the volume of the fresh air treatment device. The semiconductor refrigeration method can also realize the heating function by switching the direction of the current, which helps to better meet the cooling and heating needs of fresh air in different seasons. The effective combination of the semiconductor refrigeration method and the fresh air treatment method is an important way to further improve the function of the fresh air treatment unit and design an efficient distributed fresh air treatment unit.

From the above background technology, there is no distributed fresh air processing unit capable of cooling and lowering the temperature of fresh air.

Utility model content

The purpose of the utility model is to provide a distributed fresh air processing unit capable of cooling and lowering the temperature of the fresh air.

In order to achieve the aforementioned purpose, the utility model provides a distributed fresh air processing unit, including a first air inlet end, a first air supply end, and a semiconductor refrigeration unit located between the first air inlet end and the first air supply end. The semi-conductor refrigeration unit includes a first heat exchanger for sending the fresh air into the room from the first air supply end after cooling and heat conversion through the first air inlet end, and is used for cooling and heating the outdoor air oppositely to the first heat exchanger. The converted second heat exchanger and the semiconductive refrigeration sheet connecting the first heat exchanger and the second heat exchanger.

As a further improvement of the present utility model, the first heat exchanger and/or the second heat exchanger are provided with several heat exchange fins for correspondingly flowing through and contacting with fresh air and/or outdoor air.

As a further improvement of the present utility model, the semiconductor refrigeration fins used to change the heat-to-cold conversion direction of the first heat exchanger and/or the second heat exchanger by switching the current direction are connected to the fins of the first heat exchanger and between the fins of the second heat exchanger.

As a further improvement of the utility model, the first heat exchanger is a cold-end heat exchanger used to cool fresh air.

As a further improvement of the utility model, the distributed fresh air processing unit is also provided with a condensation water tank for collecting condensed water generated by fresh air cooling.

As a further improvement of the utility model, the first heat exchanger is a hot-end heat exchanger for heating fresh air.

As a further improvement of the utility model, a heater is provided between the first heat exchanger and the first air supply end.

As a further improvement of the utility model, an initial effect filter for initial effect filtering of fresh air is provided between the first air inlet end and the semiconductor refrigeration unit.

As a further improvement of the utility model, the distributed fresh air processing unit is also provided with a medium-efficiency filter for further filtering the fresh air.

As a further improvement of the utility model, a fan for blowing air is provided between the semiconductor refrigeration unit and the first air supply end.

Beneficial effects of the utility model: after the semiconductor refrigeration sheet of the utility model is energized, the fresh air can be sent into the room through the first heat exchanger for cold and heat conversion, and the second heat exchanger with the opposite direction of the cold and heat conversion Being able to be in contact with another outdoor wind satisfies the heat dissipation/heat absorption requirements of the semiconductor refrigeration unit. In this way, the distributed fresh air processing unit that can effectively combine semiconductor refrigeration and fresh air purification treatment to effectively introduce and process fresh air can effectively meet the fresh air demand in the building, and is suitable for various public buildings and other occasions. It can effectively shorten the The introduction of fresh air into the path and the reduction of processing energy consumption help to achieve a better indoor environment creation effect.

Description of drawings

Fig. 1 is the schematic diagram I of a kind of distributed fresh air processing unit of the present utility model.

Fig. 2 is a schematic diagram II of a distributed fresh air processing unit of the present invention.

Reference signs:

Primary filter 1 First heat exchanger 2

Heater 3 Intermediate Filter 4

Fin 5 Peltier 6

First air intake end 101 First air supply end 102

Second heat exchanger 7 Second air inlet 701

Second air exhaust end 702

Detailed ways

The utility model will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings.

A distributed fresh air processing unit of the utility model includes a first air inlet 101, a first air supply end 102, a semiconductor refrigeration unit located between the first inlet and the first air supply end 102, and the semiconductor refrigeration unit includes It is used to send the fresh air into the indoor first heat exchanger 2 from the first air supply end 102 after cooling and heat conversion through the first air inlet port 101, and is used to transfer another outdoor wind to the first heat exchanger 2. The second heat exchanger 7 that converts cold and heat oppositely, and the semiconductor cooling fin 6 that connects the first heat exchanger 2 and the second heat exchanger 7 . In this way, after the semiconductor refrigerating sheet 6 is energized, the fresh air can be sent into the room through the first heat exchanger 2 after cooling and heating conversion, and the second heat exchanger 7 with the opposite direction of cooling and heating conversion can be connected with another A stream of outdoor wind is in contact with to meet the heat discharge/heat absorption requirements of the semiconductor refrigeration unit. The semiconductor cooling chip 6 does not need refrigerants such as freon during cooling, and can work continuously, which is environmentally friendly and stable; there may be no rotating device inside, which avoids noise and vibration, and is easy to use, easy to install, and easy to maintain; the cooling control method Controlled by current, high-precision temperature control can be realized; the response speed of cooling and heating is very fast, and the maximum temperature difference can be reached quickly.

Specifically, the first heat exchanger 2 and/or the second heat exchanger 7 are provided with several heat exchange fins 5 for correspondingly flowing through and contacting with fresh air and/or outdoor air. The fins 5 have a larger surface area to achieve better heat exchange with the air. Certainly, in other embodiments, the first heat exchanger 2 and/or the second heat exchanger 7 may also be arranged in other shapes or structures.

The semiconductor cooling fins 6 used to change the heat-to-cold conversion direction of the first heat exchanger 2 and/or the second heat exchanger 7 by switching the direction of the current are connected to the fins 5 of the first heat exchanger 2 and the second Between the fins 5 of the heat exchanger 7 . In this way, by switching the current direction of the semiconductor cooling plate 6, the first heat exchanger 2 can be a cold-end heat exchanger for cooling fresh air, or a hot-end heat exchanger for heating fresh air. In different modes, the second heat exchanger 7 can be switched between being a hot-end heat exchanger or a cold-end heat exchanger correspondingly, so as to meet corresponding heat discharge/heat absorption requirements.

When the outdoor air is relatively hot, the first heat exchanger 2 is configured as a cold end heat exchanger for cooling the fresh air after the corresponding current direction is set to be energized. In this way, the fresh air cooling function is realized. The distributed fresh air processing unit is also provided with a condensed water tank (not shown) for collecting condensed water generated by fresh air cooling.

When the outdoor air is relatively cold, the direction of the current is switched so that the first heat exchanger 2 is a hot end heat exchanger for heating fresh air. In this way, the fresh air heating function is realized. Further, a heater 3 that can be selectively energized or not energized is provided between the first heat exchanger 2 and the first air supply end 102 to meet the function of supplementary heating or adjusting the degree of supplementary heating.

An initial effect filter 1 for initial effect filtering of fresh air is provided between the first air inlet end 101 and the semiconductor refrigeration unit. Further, a medium-efficiency filter 4 for further filtering the fresh air may also be provided. The primary efficiency filter 1 and the medium efficiency filter 4 can be selectively opened or bypassed according to different air qualities, so as to meet the processing requirements of different fresh air quality.

A fan (not shown) for blowing air is provided between the semiconductor refrigeration unit and the first blowing end 102 . Thus, the distributed fresh air processing unit can smoothly supply air to the room.

Fig. 1 is the schematic diagram 1 of a kind of distributed fresh air treatment unit of the present invention, in a specific embodiment, described distributed fresh air treatment unit is made up of primary effect filter 1, semiconductor refrigeration unit, heater 3, intermediate effect The semiconductor refrigeration unit includes a first heat exchanger 2 (cold end heat exchanger), a semiconductor refrigeration sheet 6, a second heat exchanger 7 (hot end heat exchanger) and the like. Wherein the first heat exchanger 2 (cold-end heat exchanger) and the second heat exchanger 7 (hot-end heat exchanger) are composed of fins 5 etc., and the surface of the fins 5 can be used to exchange heat with air. When the weather is foggy or the outdoor air quality is poor, the outdoor fresh air first passes through the primary filter 1 and is preliminarily purified.

If the outdoor air temperature is higher, now the semiconductor refrigeration unit is turned on, the semiconductor refrigeration sheet 6 is energized, and the fresh air continues to flow through the first heat exchanger 2 (cold end heat exchanger) of the semiconductor refrigeration unit, and the first heat exchanger 2 (cold end heat exchanger) There are fins 5 in the end heat exchanger), and the air is cooled during the process of passing through the fins 5 (the condensed water produced after the air dehumidification is collected in the condensed water tank in the unit, not shown in the figure). Afterwards air continues to flow through heater 3 (heater 3 is not energized at this moment), after continuing to flow through intermediate effect filter 4 and being continued to purify, becomes air supply and sends into the room. Specifically, the distributed fresh air processing unit is provided with a second air inlet end 701 and a second air exhaust end 702 located at both ends of the second heat exchanger 7, and another outdoor wind flows through the second air inlet end 701 at this time. The second heat exchanger 7 (hot end heat exchanger) of the semiconductor refrigeration unit discharges from the second exhaust end 702 to meet the heat exhaustion requirement.

When the outdoor air temperature is low, switch the current direction of the semiconductor refrigeration sheet 6 in the semiconductor refrigeration unit, the first heat exchanger 2 becomes a hot end heat exchanger, and the second heat exchanger 7 becomes a cold end heat exchanger, After the outdoor air flows through the primary filter 1, it flows through the first heat exchanger 2 (hot end heat exchanger) and is heated. If the air temperature still cannot meet the requirements, turn on the heater 3, and the air flows through the heater 3 The process is further heated to a suitable temperature level. The corresponding outdoor air flows through the second heat exchanger 7 (cold end heat exchanger), and the semiconductor refrigeration unit uses the heat of the outdoor air to realize the heating process of the second heat exchanger 7 (cold end heat exchanger).

In another embodiment, refer to FIG. 2 , which shows the air circulation path when the outdoor air quality is relatively good. Compared with Fig. 1, the working mode of Fig. 2 is the air treatment mode when the outdoor air quality is better. At this time, the outdoor air does not need to be filtered, and the path of air flowing through the primary filter 1 and the intermediate filter 4 is blocked. Bypass. The semiconductor refrigeration unit or the heater 3 can be turned on as required, and the air flows through the first heat exchanger 2 and the heater 3 of the semiconductor refrigeration unit, and is treated to a suitable temperature level before being sent into the room.

The utility model proposes a distributed fresh air processing unit that effectively combines semiconductor refrigeration/heating with fresh air purification treatment. In summer, the first heat exchanger 2 (cold end heat exchanger) of the semiconductor refrigeration unit is used to cool down the fresh air. , treat the outdoor fresh air to a suitable temperature level and send it into the room; use the primary filter 1, medium filter 4, etc. to purify the air to meet the guarantee requirements of indoor air quality; use the first semiconductor refrigeration unit in winter Heat exchanger 2 (hot end heat exchanger) and heater 3 jointly complete the heating treatment of fresh air, avoiding sending supercooled air directly into the room; adjust the operation mode according to the outdoor air quality, and when the outdoor air quality is better, the The incoming fresh air is bypassed so that it no longer passes through the filters 1,4. A distributed fresh air processing unit suitable for public buildings is constructed by combining semiconductor refrigeration units and filters 1 and 4.

Wherein, the first heat exchanger 2 (cold end heat exchanger) of the semiconductor refrigeration unit can be used to cool down the fresh air, which can greatly reduce the volume of the device compared with the traditional vapor compression refrigeration method. When the outdoor fresh air temperature is high in summer, the fresh air flows through the first heat exchanger 2 (cold end heat exchanger) of the semiconductor refrigeration unit and is cooled down, and then sent into the room after reaching a suitable temperature. At the same time, another outdoor air flows through the second heat exchanger 7 (hot end heat exchanger) of the semiconductor refrigeration unit to meet the heat removal requirement of the semiconductor refrigeration unit.

In summary, the utility model can realize the processing functions such as purification, heating and cooling of fresh air. After the outdoor air flows through the primary effect filter 1, the air is cooled or heated, and then flows through the medium effect filter 4 for further purification. When the outdoor air quality is poor, the air can be treated to a suitable purification state by using the set primary and medium effect filters 1 and 4.

The utility model can realize the switching between the cold end and the hot end in the semiconductor refrigeration unit by switching the current direction of the semiconductor refrigeration unit. When the temperature of the outdoor fresh air is low in winter, the filtered fresh air can be further heated by the second heat exchanger (hot end heat exchanger) 2 of the semiconductor refrigeration unit, and the insufficient heat can be supplemented by the heater 3 . At this time, the second heat exchanger (hot end heat exchanger) 2 of the semiconductor refrigeration unit is used to heat the fresh air, and the first heat exchanger (cold end heat exchanger) 7 can exchange heat with the outdoor air to absorb the heat of the outdoor air . In this way, the power consumption of the distributed fresh air processing unit can be greatly reduced, and a more efficient fresh air processing process can be realized.

The utility model can selectively process the fresh air according to the quality of the outdoor fresh air or the outdoor conditions. When the outdoor air quality is poor or smog occurs, the fresh air can be filtered and purified by using the primary and medium effect filters 1 and 4 in the unit; Bypass channel, the fresh air no longer flows through the filter, but can be sent into the room directly after passing through the cooling or heating module. This bypass mode of fresh air can effectively avoid secondary pollution of clean fresh air caused by the filter attached with pollutants, and further exert the purification effect of the fresh air treatment process.

It should be understood that although this description is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the description is only for clarity, and those skilled in the art should take the description as a whole, and each The technical solutions in the embodiments can also be properly combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions for the feasible implementation modes of the present utility model, and they are not used to limit the protection scope of the present utility model. Embodiments or modifications should be included within the protection scope of the present utility model.

Claims (10)

1. a kind of distribution Fresh air handing unit, it is characterised in that：Including the first air intake, first air-supply end, positioned at first into Enter the semiconductor refrigerating unit between end, the first air-supply end, the semiconductor refrigerating unit includes fresh air passing through first Air intake carries out being sent into indoor First Heat Exchanger, from the first air-supply end the progress of outdoor wind to be changed with first after cold and hot conversion The hot device semiconductor system of the second heat exchanger of cold and hot conversion and the connection First Heat Exchanger and second heat exchanger on the contrary Cold.

2. a kind of distributed Fresh air handing unit according to claim 1, it is characterised in that：The First Heat Exchanger and/ Or second heat exchanger be equipped with it is several to the heat exchange fin for flowing through contact corresponding with fresh air and/or outdoor wind.

3. a kind of distributed Fresh air handing unit according to claim 2, it is characterised in that：It is described electric to pass through switching Stream direction and the semiconductor chilling plate that changes the cold conversion direction of heat of First Heat Exchanger and/or the second heat exchanger is connected to first and changes Between the fin of the fin of hot device and the second heat exchanger.

4. a kind of distributed Fresh air handing unit according to claim 1, it is characterised in that：The First Heat Exchanger is uses With by the cool end heat exchanger of fresh air refrigerating.

5. a kind of distributed Fresh air handing unit according to claim 4, it is characterised in that：A kind of distributed fresh air The condensate draining for collecting the condensed water of fresh air refrigerating generation is additionally provided in processing unit.

6. a kind of distributed Fresh air handing unit according to claim 1, it is characterised in that：The First Heat Exchanger is uses With the hot end heat exchanger for heating fresh air.

7. a kind of distributed Fresh air handing unit according to claim 6, it is characterised in that：The First Heat Exchanger and Heater is equipped between one air-supply end.

8. a kind of distributed Fresh air handing unit according to claim 1, it is characterised in that：First air intake and half It is equipped with to carry out fresh air the primary filter of primarily efficient filter between conductor refrigeration unit.

9. a kind of distributed Fresh air handing unit according to claim 1, it is characterised in that：The distribution Fresh air handing Unit is additionally provided with the medium effeciency filter fresh air further to be filtered.

10. a kind of distributed Fresh air handing unit according to claim 1, it is characterised in that：The semiconductor refrigerating list The wind turbine to blow is equipped between member and the first air-supply end.