Temperature and humidity separate control air conditioner energy saving device
By setting up fresh air and return air channels in the air conditioning unit and using surface coolers for humidity and temperature regulation respectively, the problem of high energy consumption of the air conditioning unit is solved, and energy-saving temperature and humidity control is achieved.
Patent Information
- Application Number
- CN202522048552.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-23
AI Technical Summary
Existing air conditioning systems consume a lot of energy when regulating temperature and humidity, especially in summer and transitional seasons, requiring a large amount of cooling and heating to meet the temperature and humidity requirements of production workshops.
The system employs a temperature and humidity control-based energy-saving air conditioning device. By setting up fresh air and return air channels inside the air conditioning unit, humidity and temperature are independently controlled using fresh air surface coolers and return air surface coolers respectively. The opening degree is adjusted using fresh air electric valves and return air electric valves to reduce cooling consumption and avoid steam heating treatment.
It enables separate control of temperature and humidity, significantly reducing the cooling capacity consumption of the air conditioning unit and achieving energy-saving effects.
Smart Images
Figure CN224680877U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning technology, specifically to a temperature and humidity control air conditioning energy-saving device. Background Technology
[0002] With the improvement of production process standards, many production workshops have specific requirements for temperature and humidity in order to obtain higher quality products. For example, the temperature is (22±2)℃ and the humidity is (60±5)%. Generally, air conditioning units are installed in the production workshops to meet the requirements for temperature and humidity. However, in summer and transitional seasons, the humidity of the mixed air formed by the mixing of fresh air and return air in the air conditioning unit is higher than the indoor set index. The mixed air is dehumidified by chilled water introduced into the coil of the surface cooler in the air conditioning unit. After dehumidification, the temperature of the mixed air is relatively low, and it needs to be heated by steam in the air conditioning unit before being sent into the production workshop. In this process, the dehumidification of the mixed air first consumes a large amount of cooling capacity, and the subsequent heating consumes a large amount of heat capacity, resulting in relatively high energy consumption. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a temperature and humidity control air conditioning energy-saving device to solve the problem of relatively high energy consumption in the existing technology.
[0004] To achieve the above objectives, this utility model adopts the following technical solution: a temperature and humidity controlled air conditioning energy-saving device, comprising:
[0005] An air conditioning unit has an air intake side that is divided into a fresh air duct and a return air duct by a partition plate. The air outlet side of the air conditioning unit has a mixed duct that is connected to both the fresh air duct and the return air duct. The air outlet of the mixed duct and the air inlet of the return air duct are both connected to the indoor environment, and the air inlet of the fresh air duct is connected to the outdoor environment.
[0006] The fresh air electric valve is installed at the air inlet of the fresh air duct;
[0007] A return air electric valve is installed at the air inlet of the return air duct;
[0008] Fresh air surface cooler, which is installed in the fresh air duct and is used to dehumidify the introduced air;
[0009] A return air surface cooler is installed in the return air duct and is used to dry and cool the introduced air.
[0010] Compared with the prior art, the present invention has the following beneficial effects:
[0011] When using this temperature and humidity controlled air conditioning energy-saving device, the fresh air electric valve and the return air electric valve are opened. Fresh air enters the fresh air duct through the air inlet and is dehumidified by the fresh air surface cooler to regulate humidity. Return air enters the return air duct through the air inlet and is dried and cooled by the return air surface cooler to regulate temperature. Adjusting the opening of the fresh air electric valve and the return air electric valve allows control of the required temperature and humidity. Finally, the fresh air and return air are mixed in the mixing channel and then introduced into the room. This process achieves separate control of temperature and humidity, which reduces the cooling capacity consumption of the air conditioning unit and eliminates the need to use steam to heat the air, resulting in significant energy savings. Attached Figure Description
[0012] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.
[0013] The reference numerals in the accompanying drawings include: 1. Return air electric valve; 2. Mixing air electric valve; 3. Fresh air electric valve; 4. Filter; 5. Air conditioning unit; 6. Partition plate; 7. Main surface cooling electric regulating valve; 8. Auxiliary surface cooling electric regulating valve; 9. Fresh air surface cooler; 10. Return air surface cooler. Detailed Implementation
[0014] The present invention will be further described in detail below through specific embodiments:
[0015] like Figure 1 As shown in the figure, this utility model embodiment proposes a temperature and humidity controlled air conditioning energy-saving device, including an air conditioning unit 5, a fresh air electric valve 3, a return air electric valve 1, a fresh air surface cooler 9, and a return air surface cooler 10. The air intake side of the air conditioning unit 5 is divided into a fresh air channel and a return air channel by a partition plate 6. The air outlet side of the air conditioning unit 5 forms a mixed channel that is connected to both the fresh air channel and the return air channel. The air outlet of the mixed channel and the air inlet of the return air channel are both connected to the indoor environment, and the air inlet of the fresh air channel is connected to the outdoor environment. The fresh air electric valve 3 is located at the air inlet of the fresh air channel. The return air electric valve 1 is located at the air inlet of the return air channel. The fresh air surface cooler 9 is located in the fresh air channel and is used to dehumidify the introduced air. The return air surface cooler 10 is located in the return air channel and is used to dry and cool the introduced air.
[0016] When this temperature and humidity controlled air conditioning energy-saving device is in use, the fresh air electric valve 3 and the return air electric valve 1 are opened. Fresh air enters the fresh air duct through the air inlet and is dehumidified by the fresh air surface cooler 9 to regulate humidity. Return air enters the return air duct through the air inlet and is dried and cooled by the return air surface cooler 10 to regulate temperature. Adjusting the opening of the fresh air electric valve 3 and the return air electric valve 1 allows for control of the required temperature and humidity. After the fresh air and return air are mixed in the mixing channel, they are introduced into the room. This process achieves separate control of temperature and humidity, which reduces the cooling capacity consumption of the air conditioning unit and eliminates the need to use steam to heat the air, resulting in significant energy savings.
[0017] In this embodiment, the fresh air duct is located above the return air duct.
[0018] To achieve the goal of dehumidifying the incoming air with the fresh air surface cooler 9 and drying and cooling the incoming air with the return air surface cooler 10, two main considerations are taken into account. The first is the design of the number of cooling coils in the surface cooler to control the cooling capacity. The second is to control the opening of the fresh air electric valve 3 and the return air electric valve 1 during use to control the amount of incoming and return air.
[0019] The first aspect specifically is:
[0020] The number of cooling coils in the fresh air surface cooler 9 is greater than the number of cooling coils in the return air surface cooler 10. Therefore, the cooling capacity introduced into the fresh air surface cooler 9 is greater than that of the return air surface cooler 10. After entering the fresh air duct, the fresh air is introduced into the fresh air surface cooler 9 for cooling. The fresh air is cooled to below the dew point, and the water vapor in the fresh air condenses into water droplets and is discharged to achieve the purpose of dehumidification. After entering the return air duct, the return air is introduced into the return air surface cooler 10 for cooling. The cooling capacity introduced into the return air surface cooler 10 is relatively small, and the return air is not cooled to the dew point. The water vapor in the return air is still discharged in a gaseous state without dehumidification, achieving only the purpose of cooling. The temperature-controlled return air and the humidity-controlled fresh air are mixed in the mixing channel and then introduced into the room. In this embodiment, the number of cooling coils in the fresh air surface cooler 9 is 8 rows, and the number of cooling coils in the return air surface cooler 10 is 4 rows. The specific number can be reasonably adjusted according to actual needs.
[0021] The second aspect is specifically:
[0022] In actual use, the opening degree of the fresh air electric valve 3 is smaller than that of the return air electric valve 1, resulting in a smaller amount of fresh air being introduced than the amount of return air. Consequently, the amount of fresh air in the fresh air surface cooler 9 is smaller and the amount of cooling is relatively larger, while the amount of return air in the return air surface cooler 10 is smaller and the amount of cooling is relatively smaller. This causes the fresh air to be cooled to below the dew point in the fresh air surface cooler 9, and the water vapor in the fresh air condenses into water droplets and is discharged to achieve the purpose of dehumidification. The return air is not cooled to the dew point in the return air surface cooler 10, and the water vapor in the return air is discharged together in a gaseous state without dehumidification, thus achieving only the purpose of cooling.
[0023] The fresh air duct and the return air duct are both equipped with filters 4 on their air inlet sides to filter the incoming fresh air and return air, thereby improving the air quality entering the room. In this embodiment, the filter 4 is a bag filter.
[0024] In order to rationally arrange the piping for introducing and exporting cooling capacity in the fresh air surface cooler 9 and the return air surface cooler 10, such as Figure 1 As shown, according to another embodiment of the present invention, in the temperature and humidity control air conditioning energy-saving device, the liquid inlet of the refrigeration coil in the fresh air surface cooler 9 is connected to the chilled water inlet pipe, and the chilled water inlet pipe is also connected to the liquid inlet of the refrigeration coil in the return air surface cooler 10. The liquid outlet of the refrigeration coil in the fresh air surface cooler 9 is connected to the fresh air chilled water outlet pipe, and the liquid outlet of the refrigeration coil in the return air surface cooler 10 is connected to the return air chilled water outlet pipe. A regulating valve is provided on both the fresh air chilled water outlet pipe and the return air chilled water outlet pipe.
[0025] When using it:
[0026] Chilled water is introduced through the chilled water inlet pipe and then split. A portion of the chilled water enters the cooling coil of the fresh air surface cooler 9 to provide cooling, while the other portion enters the cooling coil of the return air surface cooler 10 to provide cooling. The chilled water is then discharged after heat exchange through the corresponding fresh air chilled water outlet pipe and return air chilled water outlet pipe. In this embodiment, all regulating valves are electrically operated. The regulating valve on the fresh air chilled water outlet pipe is named the main surface cooler electric regulating valve 7, and the regulating valve on the return air chilled water outlet pipe is named the auxiliary surface cooler electric regulating valve 8. The main surface cooler electric regulating valve 7 regulates the flow rate of condensate discharged from the fresh air chilled water outlet pipe, and the auxiliary surface cooler electric regulating valve 8 regulates the flow rate of condensate discharged from the return air chilled water outlet pipe.
[0027] To address the issue of high indoor humidity, according to another embodiment of this utility model, a temperature and humidity control air conditioning energy-saving device is provided, wherein the air inlet side of the fresh air duct and the air inlet side of the return air duct are connected through a through hole opened on the partition plate 6, and a mixing electric valve 2 is provided on the through hole.
[0028] When the indoor humidity is high:
[0029] When the mixing air electric valve 2 is opened, part of the return air entering the return air duct enters the fresh air duct through the guide hole to mix with the fresh air. Then it is filtered by the corresponding filter 4 and dehumidified by the fresh air surface cooler 9 to increase the dehumidification capacity and meet the humidity requirements in the production workshop.
[0030] This temperature and humidity control air conditioning energy-saving device works as follows during normal use:
[0031] Open the fresh air electric valve 3 and the return air electric valve 1, and close the mixing air electric valve 2. Fresh air enters the fresh air duct and is first filtered by the corresponding filter 4, then introduced into the fresh air surface cooler 9 for cooling. The fresh air is cooled to below the dew point, and the water vapor in the fresh air condenses into water droplets and is discharged, thus achieving dehumidification. A reasonable supply air moisture content is calculated based on the humidity measurement values of the production workshop, and the main surface cooler electric regulating valve 7 is adjusted to control the dehumidification amount. Return air enters the return air duct and is filtered by the corresponding filter 4, then introduced into the return air surface cooler 10 for cooling. The cooling capacity introduced into the return air surface cooler 10 is relatively small, and the return air is not cooled to the dew point. The water vapor in the return air is still discharged in a gaseous state without dehumidification, achieving only the purpose of cooling. A reasonable supply air temperature is calculated based on the temperature measurement values of the production workshop, and the supply air temperature is controlled by adjusting the opening degree of the auxiliary surface cooler electric regulating valve 8. The dehumidified fresh air and the cooled return air are mixed in the mixing channel and then introduced into the room.
[0032] When the indoor humidity load is high, the above treatment process cannot meet the humidity requirements. In some production workshops, the proportion of fresh air in the air conditioning unit is designed to be 10%-20% (by mass). At this time, the fresh air electric valve 3, the return air electric valve 1 and the mixing air electric valve 2 are opened. Part of the return air entering the return air channel enters the fresh air channel through the guide hole to mix with the fresh air. Then it is filtered by the corresponding filter 4 and dehumidified by the fresh air surface cooler 9 to increase the dehumidification capacity and meet the humidity requirements in the production workshop.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A temperature and humidity control-based air conditioning energy-saving device, characterized in that, include: An air conditioning unit has an air intake side that is divided into a fresh air duct and a return air duct by a partition plate. The air outlet side of the air conditioning unit has a mixed duct that is connected to both the fresh air duct and the return air duct. The air outlet of the mixed duct and the air inlet of the return air duct are both connected to the indoor environment, and the air inlet of the fresh air duct is connected to the outdoor environment. The fresh air electric valve is installed at the air inlet of the fresh air duct; A return air electric valve is installed at the air inlet of the return air duct; Fresh air surface cooler, which is installed in the fresh air duct and is used to dehumidify the introduced air; A return air surface cooler is installed in the return air duct and is used to dry and cool the introduced air.
2. The temperature and humidity control air conditioning energy-saving device according to claim 1, characterized in that, The number of cooling coils in the fresh air surface cooler is greater than the number of cooling coils in the return air surface cooler.
3. A temperature and humidity control air conditioning energy-saving device according to claim 1 or 2, characterized in that, In use, the opening degree of the fresh air electric valve is smaller than that of the return air electric valve.
4. A temperature and humidity control air conditioning energy-saving device according to claim 1 or 2, characterized in that, The air inlet side of the fresh air duct and the air inlet side of the return air duct are connected by a through hole opened on the partition plate, and a mixing electric valve is installed on the through hole.
5. A temperature and humidity control air conditioning energy-saving device according to claim 1 or 2, characterized in that, The liquid inlets of the refrigeration coils in the fresh air surface cooler are all connected to the chilled water inlet pipes, which are also connected to the liquid inlets of the refrigeration coils in the return air surface cooler. The liquid outlets of the refrigeration coils in the fresh air surface cooler are all connected to the fresh air chilled water outlet pipes, and the liquid outlets of the refrigeration coils in the return air surface cooler are all connected to the return air chilled water outlet pipes. Regulating valves are installed on both the fresh air chilled water outlet pipes and the return air chilled water outlet pipes.
6. A temperature and humidity control air conditioning energy-saving device according to claim 1 or 2, characterized in that, Both the air inlet side of the fresh air duct and the air inlet side of the return air duct are equipped with filters.