CN211146778U - Cold and warm double supply system - Google Patents
Cold and warm double supply system Download PDFInfo
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- CN211146778U CN211146778U CN201922264793.9U CN201922264793U CN211146778U CN 211146778 U CN211146778 U CN 211146778U CN 201922264793 U CN201922264793 U CN 201922264793U CN 211146778 U CN211146778 U CN 211146778U
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Abstract
The utility model provides a two supply system of changes in temperature, the output of air energy host computer and the input intercommunication of gas energy conveying pipe, the input of air energy host computer and the output intercommunication of gas energy recovery pipe. The input end of the first conveying pipe is communicated with the output end of the gas energy conveying pipe, the output end of the first conveying pipe is communicated with the input end of the water distributor, and the output end of the water distributor is communicated with the input end of the ground heating pipe. The output end of the ground heating pipe is communicated with the input end of the water collector. The output end of the water collector is communicated with the input end of the second conveying pipe. The output of second conveying pipe and buffer tank's input intercommunication, buffer tank's output and the input intercommunication of gas energy recovery pipe, the input of third conveying pipe and the output intercommunication of gas energy conveying pipe, the output of third conveying pipe and fan coil's input intercommunication. The output end of the fan coil is communicated with the input end of the fourth conveying pipe. The output end of the fourth conveying pipe is communicated with the input end of the second conveying pipe.
Description
Technical Field
The utility model relates to an indoor changes in temperature supply field especially relates to a two supply systems of changes in temperature.
Background
The air source heat pump two-combined-supply system is composed of an outdoor host, a tail end device, a transmission and distribution system and a control system, and can meet the requirements of two functions of heating and refrigerating. The main source of the heat of the air source heat pump dual-combined supply system is heat energy in the air, and the operation of the heating system can be completed only by providing a small amount of electric power, so that compared with the traditional heating or cooling system, the air source heat pump dual-combined supply system saves more energy and meets the requirements of energy conservation and emission reduction in the market. The air source heat pump two-combined-supply system uses water as a heat transfer medium, the temperature fluctuation is small, the heating and refrigerating effects are stable, compared with the traditional air conditioner, the air source heat pump two-combined-supply system uses Freon as a refrigerant, the temperature fluctuation is large, and the air drying is more comfortable.
However, one air source heat pump in the two-combined-supply system can realize two functions of a floor heating system and an air conditioner, the installation position is not occupied, multiple devices such as a wall-mounted furnace and an air conditioner outdoor unit need to be installed when a common house is provided with the floor heating system and the air conditioner, and if the air conditioner is provided with the wall-mounted unit, each room needs to be provided with the air conditioner outdoor unit, so that the attractiveness of the building is seriously affected. However, the heating speed of the common two-combined-supply system is low, and the requirement of the market on quick heating of the two-combined-supply system cannot be met.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a cooling and heating dual supply system for solving the technical problem of large energy consumption of the common dual supply system.
A dual supply system of cooling and heating, comprising: the air energy generating mechanism, the heating mechanism, the refrigerating mechanism and the control mechanism;
the air energy generating mechanism comprises an air energy host, an air energy conveying pipe and an air energy recovery pipe; the output end of the air energy host is communicated with the input end of the air energy transmission pipe, and the input end of the air energy host is communicated with the output end of the air energy recovery pipe; the gas energy recovery pipe is provided with a circulating pump;
the heating mechanism comprises a first conveying pipe, a water distributor, a ground heating pipe, a water collector, a second conveying pipe and a buffer water tank; the input end of the first conveying pipe is communicated with the output end of the gas energy conveying pipe, a first floor heating electromagnetic valve is arranged on the first conveying pipe, the output end of the first conveying pipe is communicated with the input end of the water distributor, and the output end of the water distributor is communicated with the input end of the floor heating pipe; the output end of the ground heating pipe is communicated with the input end of the water collector; the output end of the water collector is communicated with the input end of the second conveying pipe; the output end of the second conveying pipe is communicated with the input end of the buffer water tank, the output end of the buffer water tank is communicated with the input end of the air energy recovery pipe, and a second ground heating electromagnetic valve is arranged on the second conveying pipe;
the refrigerating mechanism comprises a third conveying pipe, a fan coil and a fourth conveying pipe; the input end of the third conveying pipe is communicated with the output end of the air energy conveying pipe, and the output end of the third conveying pipe is communicated with the input end of the fan coil; the output end of the fan coil is communicated with the input end of the fourth conveying pipe; the output end of the fourth conveying pipe is communicated with the input end of the second conveying pipe; a first air-conditioning electromagnetic valve is arranged on the third conveying pipe, and a second air-conditioning electromagnetic valve is arranged on the fourth conveying pipe; a first automatic exhaust valve is arranged on the fourth conveying pipe;
the air energy host computer, first ground warm solenoid valve the second ground warm solenoid valve first air conditioner solenoid valve, second air conditioner solenoid valve all with the control mechanism electricity is connected.
In one embodiment, the first delivery pipe is provided with a second automatic exhaust valve.
In one embodiment, a pressure relief valve is disposed on the gas energy transfer tube.
In one embodiment, a pressure gauge is arranged on the gas energy transmission pipe.
In one embodiment, the gas energy recovery pipe is provided with an expansion tank.
In one embodiment, the gas energy recovery pipe is provided with a first Y-shaped filter.
In one embodiment, the gas energy recovery pipe is provided with a first stop valve.
In one embodiment, the buffer water tank is provided with auxiliary electric heating.
In one embodiment, a third automatic exhaust valve is arranged on the buffer water tank.
In one embodiment, a second Y-strainer is disposed on the second transfer tube.
The cold and warm double supply system heats heat-conducting water through the air energy host machine in the process of heating indoors. On the one hand, the high temperature heat conduction water that produces through the heating of air energy host computer reaches fan coil through air energy conveying pipe, third conveying pipe, and fan coil gives off the heat of heat conduction water indoor, and on the other hand, the high temperature heat conduction water that produces through the heating of air energy host computer reaches the ground heating coil through first conveying pipe and water knockout drum. The dual heating mechanism of fan coil and ground heating coil has accelerated the two supply system of changes in temperature and has warmed up the speed to indoor, has improved the two supply system of changes in temperature and has warmed up the efficiency to indoor.
Drawings
Fig. 1 is a schematic structural diagram of a cooling and heating dual supply system in one embodiment;
fig. 2 is a schematic structural diagram of a cooling and heating dual supply system in one embodiment.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1 and 2, the present invention provides a cooling and heating dual supply system 10, wherein the cooling and heating dual supply system 10 includes: air energy generating means 100, heating means 200, cooling means 300, and control means 400. The air energy generating mechanism 100 includes an air energy host 110, an air energy transport tube 120, and an air energy recovery tube 130. The output end of the air energy host 110 is communicated with the input end of the air energy transmission pipe 120, and the input end of the air energy host 110 is communicated with the output end of the air energy recovery pipe 130. The gas energy recovery pipe 130 is provided with a circulation pump 131. The heating mechanism 200 includes a first transfer pipe 210, a water separator 220, a ground heating pipe 230, a water collector 240, a second transfer pipe 250, and a buffer water tank 260. The input end of the first conveying pipe 210 is communicated with the output end of the gas energy conveying pipe 120, a first floor heating electromagnetic valve 211 is arranged on the first conveying pipe 210, the output end of the first conveying pipe 210 is communicated with the input end of the water distributor 220, and the output end of the water distributor 220 is communicated with the input end of the floor heating pipe 230. The output end of the ground heating pipe 230 is communicated with the input end of the water collector 240. The output end of the sump 240 communicates with the input end of the second transfer pipe 250. The output end of the second conveying pipe 250 is communicated with the input end of the buffer water tank 260, the output end of the buffer water tank 260 is communicated with the input end of the air energy recovery pipe 130, and the second conveying pipe 250 is provided with a second geothermal solenoid valve 251. The refrigeration mechanism 300 includes a third transfer tube 310, a fan coil 320, and a fourth transfer tube 330. The input end of the third conveying pipe 310 is communicated with the output end of the air energy conveying pipe 120, and the output end of the third conveying pipe 310 is communicated with the input end of the fan coil 320. The output of the fan coil 320 is in communication with the input of a fourth transfer tube 330. The output end of the fourth transfer pipe 330 communicates with the input end of the second transfer pipe 250. The third conveying pipe 310 is provided with a first air conditioning solenoid valve 311, and the fourth conveying pipe 330 is provided with a second air conditioning solenoid valve 331. The fourth transfer pipe 330 is provided with a first automatic exhaust valve 332. The air energy host 110, the first floor heating solenoid valve 211, the second floor heating solenoid valve 251, the first air conditioning solenoid valve 311 and the second air conditioning solenoid valve 331 are all electrically connected with the control mechanism 400.
In the heating process of the indoor space, the cooling and heating dual supply system 10 heats the heat transfer water through the air energy main unit 110. In one aspect, the high temperature heat transfer water heated by the air energy host 110 reaches the fan coil 320 through the air energy transmission pipe 120 and the third transmission pipe 310, and the fan coil 320 radiates heat of the heat transfer water to the indoor. On the other hand, the high-temperature heat transfer water heated by the air energy main unit 110 reaches the ground heating pipe 230 through the first delivery pipe 210 and the water separator 220. The dual heating mechanism of the fan coil 320 and the ground heating pipe 230 accelerates the heating speed of the cooling and heating dual supply system 10 to the indoor, and improves the heating efficiency of the cooling and heating dual supply system 10 to the indoor.
The air-energy generating mechanism 100 is used to heat or cool heat-conducting water, and specifically, the heat-conducting water is purified water. The air energy generating mechanism 100 includes an air energy host 110, an air energy transport tube 120, and an air energy recovery tube 130. The output end of the air energy host 110 is communicated with the input end of the air energy transmission pipe 120, and the input end of the air energy host 110 is communicated with the output end of the air energy recovery pipe 130. The gas energy recovery pipe 130 is provided with a circulation pump 131. The circulating pump 131 is used to provide power for circulating the heat-conducting water in the cooling and heating dual supply system. In this embodiment, a pressure relief valve 121 is disposed on the pneumatic energy transfer tube 120 to reduce and stabilize the air pressure in the pneumatic energy transfer tube 120. Further, a pressure gauge 122 is disposed on the pneumatic conveying pipe 120, so that a user can observe the pressure in the pneumatic conveying pipe 120 through the pressure gauge 122. In one embodiment, the air energy recycling pipe 130 is provided with an expansion tank 132 for supplementing the heat conducting water in the cooling and heating dual supply system, so as to maintain enough heat conducting water in the cooling and heating dual supply system and ensure the normal operation of the cooling and heating dual supply system. The gas energy recovery pipe 130 is provided with a first shut-off valve 133 to close or open the gas energy recovery pipe 130. In this embodiment, the first Y-shaped filter 134 is disposed on the air energy recycling pipe 130 to filter out impurities in the heat transfer water, so as to ensure normal operation of the cooling and heating dual supply system.
The heating mechanism 200 is used for heating a room, and specifically, the heating mechanism 200 includes a first delivery pipe 210, a water separator 220, a ground heating pipe 230, a water collector 240, a second delivery pipe 250, and a buffer water tank 260. The input end of the first conveying pipe 210 is communicated with the output end of the gas energy conveying pipe 120, a first floor heating electromagnetic valve 211 is arranged on the first conveying pipe 210, the output end of the first conveying pipe 210 is communicated with the input end of the water distributor 220, and the output end of the water distributor 220 is communicated with the input end of the floor heating pipe 230. In this embodiment, the first delivery pipe 210 is provided with a second automatic exhaust valve 212 to reduce and stabilize the air pressure in the first delivery pipe 210. The output end of the ground heating pipe 230 is communicated with the input end of the water collector 240. The output end of the sump 240 communicates with the input end of the second transfer pipe 250. The output end of the second transfer pipe 250 communicates with the input end of the buffer water tank 260. In this embodiment, a second Y-shaped filter 252 is disposed on the second conveying pipe 250 to filter out impurities in the heat transfer water, so as to ensure normal operation of the cooling and heating dual supply system. The output end of the buffer water tank 260 is communicated with the input end of the air energy recovery pipe 130, and the second conveying pipe 250 is provided with a second geothermal solenoid valve 251. In this embodiment, the buffer tank 260 is provided with the auxiliary electric heater 261, and the auxiliary electric heater 261 can heat the heat-conducting water in the buffer tank 260 in advance when the heating mechanism 200 heats the room, thereby increasing the heating efficiency of the heating mechanism 200. In one embodiment, a third automatic air release valve 262 is provided on the buffer water tank 260 to reduce and stabilize the air pressure in the buffer water tank 260. The high-temperature heat-conductive water heated by the air energy main unit 110 reaches the ground heating pipe 230 through the first delivery pipe 210 and the water separator 220. The ground heating pipe 230 radiates heat of the high-temperature heat-conductive water to the indoor to achieve preliminary heating of the indoor.
The cooling mechanism 300 is used to cool the room or assist the heating mechanism 200 to heat the room, and specifically, the cooling mechanism 300 includes a third conveying pipe 310, a fan coil 320, and a fourth conveying pipe 330. The input end of the third conveying pipe 310 is communicated with the output end of the air energy conveying pipe 120, and the output end of the third conveying pipe 310 is communicated with the input end of the fan coil 320. The output of the fan coil 320 is in communication with the input of a fourth transfer tube 330. The output end of the fourth transfer pipe 330 communicates with the input end of the second transfer pipe 250. The third conveying pipe 310 is provided with a first air conditioning solenoid valve 311, and the fourth conveying pipe 330 is provided with a second air conditioning solenoid valve 331. The fourth transfer pipe 330 is provided with a first automatic exhaust valve 332 for reducing and stabilizing the air pressure in the fourth transfer pipe 330. When the cooling mechanism 300 is arranged to assist the heating mechanism 200 to heat the room, high-temperature heat-conducting water generated by heating the air energy host 110 reaches the fan coil 320 through the air energy transmission pipe 120 and the third transmission pipe 310, the fan coil 320 radiates heat of the heat-conducting water to the room, and the dual heating mechanisms of the fan coil 320 and the ground heating pipe 230 accelerate the heating speed of the cold and warm dual supply system 10 to the room and improve the heating efficiency of the cold and warm dual supply system 10 to the room. When setting up refrigeration mechanism 300 and cooling down indoor, the air can host computer 110 reduces the temperature of heat conduction water, and the low temperature heat conduction water that produces through the cooling of air can host computer 110 reaches fan coil 320 through air can conveying pipe 120, third conveying pipe 310, and fan coil 320 gives off the low temperature air that the heat conduction water produced indoor, realizes handling indoor cooling.
The control mechanism 400 is used for coordinating the air energy host 110, the first floor heating electromagnetic valve 211, the second floor heating electromagnetic valve 251, the first air conditioner electromagnetic valve 311 and the second air conditioner electromagnetic valve 331 to work together, the air energy host 110, the first floor heating electromagnetic valve 211, the second floor heating electromagnetic valve 251, the first air conditioner electromagnetic valve 311 and the second air conditioner electromagnetic valve 331 are all electrically connected with the control mechanism 400, the control mechanism 400 is a lower computer, specifically, the control mechanism 400 is P L C, in other embodiments, the control mechanism is a single chip microcomputer, in other embodiments, the control mechanism comprises an upper computer and a lower computer, and the upper computer is electrically connected with the lower computer.
In order to increase the operation stability of the cooling and heating dual supply system, please refer to fig. 1 and fig. 2 together, in one embodiment, the heating mechanism 200 further includes a fluid replenishing tank 270 and a fluid replenishing pipe 280, an output end of the fluid replenishing tank 270 is communicated with an input end of the fluid replenishing pipe 280, and an input end of the fluid replenishing pipe 280 is communicated with an input end of the second conveying pipe 250. The liquid replenishing tank 270 replenishes the second conveying pipe 250 with heat conducting water in the cooling and heating dual supply system through the liquid replenishing pipe 280, so that sufficient heat conducting water is maintained in the cooling and heating dual supply system, and the normal operation of the cooling and heating dual supply system is ensured. Further, a second stop valve 281 is disposed on the fluid replenishing pipe 280 to control the opening or closing of the fluid replenishing pipe 280. Therefore, the liquid supplementing tank 270 and the liquid supplementing pipe 280 ensure the normal operation of the cooling and heating dual supply system, and the working stability of the cooling and heating dual supply system is increased.
In summary, the following steps: the cold and warm double supply system can realize the working modes of three functions of refrigeration, heating and hot water production, and really realizes that one unit can meet the requirements of cold air refrigeration of an air conditioner in summer, heating and heating in winter and daily hot water supply required by families, businesses or public places. On the other hand, the cooling and heating dual supply system has the advantages of small volume and small occupied space, and the total equipment of the cooling and heating dual supply system is low in cost and high in efficiency. The cold and warm dual supply system saves energy and has high comprehensive resource utilization rate. The cold and warm double supply system is convenient to install and can be well matched with a building. The maintenance cost of the cooling and heating dual supply system is obviously reduced.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A cold and warm dual supply system is characterized by comprising: the air energy generating mechanism, the heating mechanism, the refrigerating mechanism and the control mechanism;
the air energy generating mechanism comprises an air energy host, an air energy conveying pipe and an air energy recovery pipe; the output end of the air energy host is communicated with the input end of the air energy transmission pipe, and the input end of the air energy host is communicated with the output end of the air energy recovery pipe; the gas energy recovery pipe is provided with a circulating pump;
the heating mechanism comprises a first conveying pipe, a water distributor, a ground heating pipe, a water collector, a second conveying pipe and a buffer water tank; the input end of the first conveying pipe is communicated with the output end of the gas energy conveying pipe, a first floor heating electromagnetic valve is arranged on the first conveying pipe, the output end of the first conveying pipe is communicated with the input end of the water distributor, and the output end of the water distributor is communicated with the input end of the floor heating pipe; the output end of the ground heating pipe is communicated with the input end of the water collector; the output end of the water collector is communicated with the input end of the second conveying pipe; the output end of the second conveying pipe is communicated with the input end of the buffer water tank, the output end of the buffer water tank is communicated with the input end of the air energy recovery pipe, and a second ground heating electromagnetic valve is arranged on the second conveying pipe;
the refrigerating mechanism comprises a third conveying pipe, a fan coil and a fourth conveying pipe; the input end of the third conveying pipe is communicated with the output end of the air energy conveying pipe, and the output end of the third conveying pipe is communicated with the input end of the fan coil; the output end of the fan coil is communicated with the input end of the fourth conveying pipe; the output end of the fourth conveying pipe is communicated with the input end of the second conveying pipe; a first air-conditioning electromagnetic valve is arranged on the third conveying pipe, and a second air-conditioning electromagnetic valve is arranged on the fourth conveying pipe; a first automatic exhaust valve is arranged on the fourth conveying pipe;
the air energy host computer, first ground warm solenoid valve the second ground warm solenoid valve first air conditioner solenoid valve, second air conditioner solenoid valve all with the control mechanism electricity is connected.
2. The dual cooling and heating supply system according to claim 1, wherein a second automatic exhaust valve is provided on the first delivery pipe.
3. The dual cooling and heating supply system according to claim 1, wherein a pressure relief valve is provided on the air energy transfer pipe.
4. The dual cooling and heating supply system according to claim 1, wherein a pressure gauge is disposed on the air energy transmission pipe.
5. The dual cooling and heating supply system according to claim 1, wherein an expansion tank is provided on the air energy recovery pipe.
6. The dual cooling and heating supply system according to claim 1, wherein a first Y-shaped filter is disposed on the air energy recovery pipe.
7. A cold and warm dual supply system according to claim 1, wherein a first stop valve is provided on the air energy recovery pipe.
8. The dual cooling and heating supply system according to claim 1, wherein an auxiliary electric heater is disposed on the buffer water tank.
9. The dual cooling and heating supply system according to claim 1, wherein a third automatic exhaust valve is provided on the buffer water tank.
10. The dual cooling and heating supply system according to claim 1, wherein a second Y-shaped filter is disposed on the second transfer pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922264793.9U CN211146778U (en) | 2019-12-17 | 2019-12-17 | Cold and warm double supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922264793.9U CN211146778U (en) | 2019-12-17 | 2019-12-17 | Cold and warm double supply system |
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| CN211146778U true CN211146778U (en) | 2020-07-31 |
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| CN201922264793.9U Active CN211146778U (en) | 2019-12-17 | 2019-12-17 | Cold and warm double supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864851A (en) * | 2021-09-15 | 2021-12-31 | 郑州泉水之源供水设备有限公司 | Air energy refrigerating and heating two-combined supply system integrated hydraulic module |
| CN115682205A (en) * | 2022-12-21 | 2023-02-03 | 芜湖大正电器科技有限公司 | Energy-saving air conditioning unit |
-
2019
- 2019-12-17 CN CN201922264793.9U patent/CN211146778U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864851A (en) * | 2021-09-15 | 2021-12-31 | 郑州泉水之源供水设备有限公司 | Air energy refrigerating and heating two-combined supply system integrated hydraulic module |
| CN115682205A (en) * | 2022-12-21 | 2023-02-03 | 芜湖大正电器科技有限公司 | Energy-saving air conditioning unit |
| CN115682205B (en) * | 2022-12-21 | 2023-08-11 | 深圳英创能源环境技术有限公司 | Energy-saving air conditioning unit |
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