Combined central air conditioner

Abstract

The utility model discloses a combined type central air conditioner which comprises a wind coil unit, a first water pipe and a second water pipe are fixedly installed on the wind coil unit, one end of the second water pipe is fixedly communicated with a first circulating water pump, a water pumping opening of the first circulating water pump is provided with a heating mechanism, and the heating mechanism is provided with a third water pipe. A third switch is fixedly installed on the third water pipe, a refrigerating mechanism is arranged at the end, away from the air coil unit, of the first water pipe, the first water pipe fixedly communicates with a fourth water pipe, the fourth water pipe fixedly communicates with a hot water pump, and the hot water pump fixedly communicates with a fifth water pipe; and a second circulating water suction pump is mounted on the fifth water pipe. Compared with the prior art, the combined central air conditioner has the advantages that solar energy is used as a main part and a heat pump is used as an auxiliary part during heating in winter, the solar energy can be used for generating hot water to provide annual hot water for families, underground water is used for refrigeration during refrigeration in summer, the cost is low, and pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a combined central air conditioner. Background Technique

[0002] An air conditioner is a high-energy-consuming product that can provide heating in winter and cooling in summer. With the continuous development of the national economy, air conditioners are used more and more widely. However, their demand for electric energy is increasing, often consuming too much electricity during use, resulting in a high usage cost. Moreover, at present, most electricity is generated by thermal power generation, causing relatively serious environmental pollution. Therefore, we propose a new combined central air conditioner. Content of the Utility Model

[0003] The main purpose of the utility model is to propose a combined central air conditioner, which can effectively solve the problems in the background technique.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a combined central air conditioner, including a fan coil unit, on which a first water pipe and a second water pipe are fixedly installed. One end of the second water pipe is fixedly communicated with a first circulating water pump. A heating mechanism is arranged at the water pumping port of the first circulating water pump. A third water pipe is arranged on the heating mechanism, and a third switch is fixedly installed on the third water pipe. A refrigeration mechanism is arranged at the end of the first water pipe away from the fan coil unit. A fourth water pipe is fixedly communicated with the first water pipe. A hot water pump is fixedly communicated with the fourth water pipe. A fifth water pipe is fixedly communicated with the hot water pump, and a second circulating water pump is installed on the fifth water pipe.

[0005] As a further description of the above technical solution, the heating mechanism includes a first pressure-bearing heat preservation box, on which a sixth water pipe, a seventh water pipe, an eighth water pipe and a ninth water pipe are fixedly communicated. One end of the eighth water pipe is fixedly communicated with a solar heat collector. A third circulating water pump is fixedly installed on the ninth water pipe. A first switch and a second switch are respectively fixedly installed on the sixth water pipe and the seventh water pipe.

[0006] As a further description of the above technical solution, both ends of the third water pipe are respectively fixedly communicated with the sixth water pipe and the seventh water pipe. The seventh water pipe is fixedly communicated with the water pumping port of the first circulating water pump. The ninth water pipe is fixedly communicated with the water inlet of the solar heat collector. The water inlet of the solar heat collector is connected to tap water for additional use. A domestic hot water pipe is fixedly communicated with the first pressure-bearing heat preservation box.

[0007] As a further description of the above technical solution, the refrigeration mechanism includes a second pressure-bearing heat preservation box, the second pressure-bearing heat preservation box is fixedly communicated with a tenth water pipe, an eleventh water pipe and a twelfth water pipe, a temperature sensor and a controller are fixedly installed on the second pressure-bearing heat preservation box, a fourth switch is arranged on the eleventh water pipe, and a water pump is fixedly installed on the twelfth water pipe.

[0008] As a further description of the above technical solution, the sixth water pipe is fixedly communicated with the second pressure-bearing heat preservation box, the fourth water pipe and the fifth water pipe are both fixedly communicated with the second pressure-bearing heat preservation box, and the tenth water pipe is fixedly communicated with the second circulating water pump.

[0009] As a further description of the above technical solution, the eleventh water pipe is communicated with the underground return well, and the water intake of the water pump is communicated with the underground pumping well.

[0010] As a further description of the above technical solution, the hot water pump and the temperature sensor are respectively electrically connected to the controller.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. By arranging the fan coil unit, the first water pipe, the second water pipe, the first circulating water pump, the heating mechanism, the third water pipe, the third switch, the refrigeration mechanism and the fourth water pipe in cooperation, during winter heating, heat can be supplied mainly by solar energy, and during summer refrigeration, groundwater can be used for refrigeration, reducing electricity consumption, lowering the electricity cost, and reducing pollution.

[0013] 2. By arranging the hot water pump, the fifth water pipe, the second circulating water pump, the temperature sensor and the controller in cooperation, when there is insufficient sunlight on a rainy day in winter and the water temperature drops, the temperature sensor arranged on the second pressure-bearing heat preservation box will detect the water temperature in the second pressure-bearing heat preservation box in real time. When the water temperature drops to a certain temperature, the controller will control the hot water pump to work. Under the action of the hot water pump and the second circulating water pump, the water in the second pressure-bearing heat preservation box can be circulated and heated, so as to perform auxiliary heating to achieve the heating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of a combined central air conditioner of the utility model;

[0015] Figure 2 is a schematic diagram of the structure of the heating mechanism of a combined central air conditioner of the utility model;

[0016] Figure 3 is a schematic diagram of the structure of the refrigeration mechanism of a combined central air conditioner of the utility model;

[0017] Figure 4Schematic diagram of the water flow direction of a combined central air conditioner of the present utility model;

[0018] In the figure: 1, air handling unit; 2, first water pipe; 3, second water pipe; 4, first circulating water pump; 5, heating mechanism; 6, third water pipe; 7, third switch; 8, refrigeration mechanism; 9, fourth water pipe; 10, hot water pump; 11, fifth water pipe; 12, second circulating water pump; 13, domestic hot water pipe; 51, first pressure-bearing insulation box; 52, sixth water pipe; 53, seventh water pipe; 54, eighth water pipe; 55, ninth water pipe; 56, solar heat collector; 57, third circulating water pump; 58, first switch; 59, second switch; 81, second pressure-bearing insulation box; 82, tenth water pipe; 83, eleventh water pipe; 84, twelfth water pipe; 85, temperature sensor; 86, fourth switch; 87, water pump. Specific embodiments

[0019] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] Please refer to Figures 1-4, the utility model provides a technical solution: a combined central air conditioner, including a fan coil unit 1, on which a first water pipe 2 and a second water pipe 3 are fixedly installed. One end of the second water pipe 3 is fixedly communicated with the water outlet of a first circulating water pump 4. A heating mechanism 5 is arranged at the water intake of the first circulating water pump 4. The heating mechanism 5 includes a first pressure-bearing heat preservation box 51, on which a sixth water pipe 52, a seventh water pipe 53, an eighth water pipe 54 and a ninth water pipe 55 are fixedly communicated. A third water pipe 6 is fixedly communicated between the sixth water pipe 52 and the seventh water pipe 53. A third switch 7 is fixedly installed on the third water pipe 6. A first switch 58 is fixedly installed on the sixth water pipe 52. The seventh water pipe 53 is fixedly communicated with the water intake of the first circulating water pump 4. A second switch 59 is fixedly installed on the seventh water pipe 53. Both the eighth water pipe 54 and the ninth water pipe 55 are fixedly communicated with a solar heat collector 56, and the water inlet of the solar heat collector 56 is connected with domestic tap water. A third circulating water pump 57 is fixedly installed on the ninth water pipe 55. A domestic hot water pipe 13 is also fixedly communicated with the first pressure-bearing heat preservation box 51 for supplying hot water to the family for use.

[0023] One end of the first water pipe 2 away from the fan coil unit 1 is provided with a refrigeration mechanism 8. The refrigeration mechanism 8 includes a second pressure-bearing heat preservation box 81. The sixth water pipe 52 is fixedly communicated with the second pressure-bearing heat preservation box 81. The second pressure-bearing heat preservation box 81 is fixedly communicated with a tenth water pipe 82, an eleventh water pipe 83 and a twelfth water pipe 84. The tenth water pipe 82 is fixedly communicated with the water inlet of a second circulating water pump 12. A temperature sensor 85 and a controller are fixedly installed on the second pressure-bearing heat preservation box 81. The temperature sensor 85 is electrically connected with the controller. The controller uses an AT810S51 single-chip microcomputer, which has a small volume, low cost, many T / 0 pins, high reliability, strong anti-interference ability and simple programming. A fourth switch 86 is fixedly installed on the eleventh water pipe 83. A water pump 87 is fixedly installed on the twelfth water pipe 84. One end of the eleventh water pipe 83 is communicated with an underground return well, and the other end of the eleventh water pipe 83 is fixedly communicated with the upper end of the second pressure-bearing heat preservation box 81. The water intake of the water pump 87 is communicated with an underground pumping well, and the water pump 87 is electrically connected with the controller.

[0024] A fourth water pipe 9 is fixedly connected to the first water pipe 2. A hot water pump 10 is fixedly connected to the fourth water pipe 9. A fifth water pipe 11 is fixedly connected to the hot water pump 10. Both the fourth water pipe 9 and the fifth water pipe 11 are fixedly connected to the second pressure-bearing insulation box 81. A second circulating water pump 12 is installed on the fifth water pipe 11. The hot water pump 10 is electrically connected to the controller. Here, it should be noted that the temperature sensor 85 and the controller mentioned in the text are a mature and publicly disclosed technology in the prior art. After the temperature sensor 85 transmits the data into the controller for processing, the controller decides whether to control the hot water pump 10 or the water pump 87 to work according to the program set in its internal. This technology can be realized by simple programming by those skilled in the art. Therefore, the specific structure and working principle thereof will not be described in detail in this text.

[0025] It should be noted that the present utility model is a combined central air conditioner. When in use, domestic tap water is injected into the solar heat collector 56 under its own pressure for heating, and then flows into the first pressure-bearing heat preservation box 51. Then, the third circulating water pump 57 pumps the water in the first pressure-bearing heat preservation box 51 back into the solar heat collector 56 for water circulation, so as to keep the water in the first pressure-bearing heat preservation box 51 and the solar heat collector 56 at the same temperature. When heating in winter, the first switch 58 and the second switch 59 are turned on, and at the same time, the fourth switch 86 and the third switch 7 on the third water pipe 6 are turned off. The hot water in the first pressure-bearing heat preservation box 51 is transported from the seventh water pipe 53 to the second water pipe 3 through the first circulating water pump 4, and finally transported to the air handling unit 1 in the room. The air handling unit 1 sends the heat energy to the room to raise the temperature of the room. After the hot water in the air handling unit 1 is used, under the thrust of the first circulating water pump 4, it will flow into the second pressure-bearing heat preservation box 81 through the first water pipe 2, and then flow into the first pressure-bearing heat preservation box 51 through the sixth water pipe 52, and so on. When in winter on rainy and cloudy days, when the light is insufficient and the working efficiency of the solar heat collector 56 is reduced, resulting in a decrease in water temperature, the temperature sensor 85 on the second pressure-bearing heat preservation box 81 will detect the water temperature passing through the second pressure-bearing heat preservation box 81 in real time and transmit the detected temperature information to the controller. The controller controls the operation of the hot water pump 10 according to the program set inside it. At this time, the second circulating water pump 12 will transport the water in the second pressure-bearing heat preservation box 81 to the hot water pump 10 through the fifth water pipe 11 for auxiliary heating, so as to carry out water circulation between the second pressure-bearing heat preservation box 81 and the hot water pump 10, thereby increasing the water temperature in the second circulating water pump 12; when cooling in summer, the fourth switch 86 and the third switch 7 on the third water pipe 6 are turned on, and at the same time, the first switch 58 and the second switch 59 are turned off. Groundwater is pumped by the water pump 87, and then passes through the second pressure-bearing heat preservation box 81. The first circulating water pump 4 is used to transport the groundwater in the second pressure-bearing heat preservation box 81 into the indoor air handling unit 1 through the third water pipe 6. Through the air handling unit 1, the cold air is sent into the room. After the cold water in the air handling unit 1 is used, it will return to the second pressure-bearing heat preservation box 81 through the first water pipe 2 again, and so on. When the water temperature in the second pressure-bearing heat preservation box 81 rises, the temperature sensor 85 will transmit the detected temperature information to the controller. The controller controls the operation of the water pump 87 according to the program set inside it to automatically replenish water to reduce the water temperature in the second pressure-bearing heat preservation box 81. When the second pressure-bearing heat preservation box 81 is full of water, it will flow into the underground return well through the eleventh water pipe 83, so as to ensure the water temperature in the second pressure-bearing heat preservation box 81; due to the existence of the solar heat collector 56, there is always hot water in the first pressure-bearing heat preservation box 51 throughout the year. The hot water can be introduced into the room through the domestic hot water pipe 13 on the first pressure-bearing heat preservation box 51 for bathing, washing, etc.Compared with the existing combined central air conditioners, when heating in winter, the utility model mainly uses solar energy and supplemented by a heat pump, and can use solar energy to generate hot water to provide hot water for families throughout the year. When cooling in summer, groundwater is used for cooling, with low cost and reduced pollution.

[0026] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.

Claims

1. A combined central air conditioner, comprising a fan coil unit (1), characterized in that, A first water pipe (2) and a second water pipe (3) are fixedly installed on the air handling unit (1). One end of the second water pipe (3) is fixedly connected and communicated with a first circulating water pump (4). A heating mechanism (5) is arranged at the water pumping port of the first circulating water pump (4). A third water pipe (6) is arranged on the heating mechanism (5). A third switch (7) is fixedly installed on the third water pipe (6). One end of the first water pipe (2) away from the air handling unit (1) is provided with a refrigeration mechanism (8). A fourth water pipe (9) is fixedly connected and communicated with the first water pipe (2). A hot water pump (10) is fixedly connected and communicated with the fourth water pipe (9). A fifth water pipe (11) is fixedly connected and communicated with the hot water pump (10). A second circulating water pump (12) is installed on the fifth water pipe (11).

2. The combined central air conditioner according to claim 1, wherein The heating mechanism (5) includes a first pressure-bearing heat preservation box (51). A sixth water pipe (52), a seventh water pipe (53), an eighth water pipe (54) and a ninth water pipe (55) are fixedly connected and communicated with the first pressure-bearing heat preservation box (51). One end of the eighth water pipe (54) is fixedly connected and communicated with a solar heat collector tube (56). A third circulating water pump (57) is fixedly installed on the ninth water pipe (55). A first switch (58) and a second switch (59) are respectively fixedly installed on the sixth water pipe (52) and the seventh water pipe (53).

3. The combined central air conditioner according to claim 2, characterized in that, Both ends of the third water pipe (6) are respectively fixedly connected and communicated with the sixth water pipe (52) and the seventh water pipe (53). The seventh water pipe (53) is fixedly connected and communicated with the water pumping port of the first circulating water pump (4). The ninth water pipe (55) is fixedly connected and communicated with the water inlet of the solar heat collector tube (56). The water inlet of the solar heat collector tube (56) is connected with tap water for additional use. A domestic hot water pipe (13) is fixedly connected and communicated with the first pressure-bearing heat preservation box (51).

4. The modular central air conditioner according to claim 2, wherein, The refrigeration mechanism (8) includes a second pressure-bearing heat preservation box (81). A tenth water pipe (82), an eleventh water pipe (83) and a twelfth water pipe (84) are fixedly connected and communicated with the second pressure-bearing heat preservation box (81). A temperature sensor (85) and a controller are fixedly installed on the second pressure-bearing heat preservation box (81). A fourth switch (86) is arranged on the eleventh water pipe (83). A water pump (87) is fixedly installed on the twelfth water pipe (84).

5. The combined central air conditioner according to claim 4, characterized in that, The sixth water pipe (52) is fixedly connected and communicated with the second pressure-bearing heat preservation box (81). Both the fourth water pipe (9) and the fifth water pipe (11) are fixedly connected and communicated with the second pressure-bearing heat preservation box (81). The tenth water pipe (82) is fixedly connected and communicated with the second circulating water pump (12).

6. The combined central air conditioner according to claim 4, characterized in that, The eleventh water pipe (83) is communicated with an underground return well. The water pumping port of the water pump (87) is communicated with an underground pumping well.

7. A combined central air conditioner according to claim 4, characterized in that, The hot water pump (10) and the temperature sensor (85) are respectively electrically connected with the controller.

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