Shallow well cooling capacity recovery type air conditioner refrigerating system

Abstract

The invention belongs to the technical field of air-conditioning refrigeration, and particularly relates to a shallow well cooling capacity recovery type air-conditioning refrigeration system. In the system, an air supply mechanism feeds indoor air into a shallow well, the indoor air and well air are mixed and then rise, the gas temperature is preliminarily reduced, and then the mixed gas sequentially passes through a first heat exchange mechanism and a second heat exchange mechanism; the first heat exchange mechanism and the second heat exchange mechanism are used for cooling mixed gas for the second time and the third time through well water, the gas cooled for multiple times is fed into a room through an air supply pipe, and indoor refrigeration is achieved; according to the system, air is cooled for multiple times through well water, meanwhile, flowing of the air enables the well water to be evaporated in an accelerated mode, evaporation of the well water absorbs heat, the air is further cooled, then the cooled air is fed into a room, the room is cooled, in the process, use of a conventional air conditioner is reduced, and energy is greatly saved.

Description

Technical Field

[0001] The invention belongs to the technical field of air conditioning and refrigeration, and in particular relates to a shallow water well cold recovery type air conditioning and refrigeration system. Background Art

[0002] Globally, fossil energy is gradually becoming exhausted, and environmental pollution is becoming increasingly serious. In this context, the efficient use of renewable energy plays a decisive role in alleviating environmental pressure and reducing carbon emissions. This is not only a core requirement for sustainable development, but also an inevitable trend of social progress. At the same time, social energy demand is not only high, but also shows a trend of rising year by year. Therefore, exploring efficient ways to use renewable energy and achieving effective energy savings have become key issues that need to be urgently addressed in the current energy field.

[0003] With the coming of summer, air conditioning and refrigeration have become a rigid demand for people to maintain a comfortable living environment. However, it cannot be ignored that air conditioning systems account for a considerable proportion of summer energy consumption, and can be called a "big consumer" of energy in summer. Under this circumstance, achieving energy saving in air conditioning, especially high-efficiency energy saving, is of great practical significance and urgency to alleviate energy tension and promote sustainable development.

[0004] Therefore, a shallow water well cold recovery air conditioning refrigeration system is proposed. Summary of the invention

[0005] The object of the present invention is to provide a shallow water well cold recovery type air conditioning refrigeration system to solve the above problems.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] A shallow water well cold recovery type air conditioning refrigeration system comprises: an air supply mechanism, wherein the outlet end of the air supply mechanism is located in a shallow water well and above the water surface, a first heat exchange mechanism and a second heat exchange mechanism are arranged in the shallow water well, the first heat exchange mechanism and the second heat exchange mechanism are arranged in sequence from bottom to top, the first heat exchange mechanism is located directly above the outlet end of the air supply mechanism, the first heat exchange mechanism and the second heat exchange mechanism use well water to exchange heat with air, and an air supply pipe for supplying air to the room is arranged at the wellhead of the shallow water well.

[0008] Preferably, the second heat exchange mechanism includes two parallel and symmetrically arranged water troughs, the water troughs are installed on the inner wall of the shallow water well, and openings are opened on the opposite side walls of the two water troughs, and baffles are fixed at the openings. A plurality of heat exchange tubes are fixed between the two baffles, and the plurality of heat exchange tubes are distributed in an array. The heat exchange tubes are horizontally arranged, and the ends of the heat exchange tubes pass through the baffles and are connected to the water troughs, and well water flows in the water troughs and the heat exchange tubes.

[0009] Preferably, a water replacement pipe is connected to the bottom end of one of the water tanks. The bottom end of the water replacement pipe is located below the water surface. A water replacement pump and a solenoid valve are provided on the water replacement pipe, and the solenoid valve is close to the water tank.

[0010] The inlet end of an overflow pipe is connected to the top end of the other water tank, and the outlet end of the overflow pipe is located in the shallow well.

[0011] Preferably, an evaporator is provided in the water tank connected to the water replacement pipe, and the evaporator is immersed in the well water.

[0012] Preferably, a second heat exchange grid is fixedly connected between two adjacent heat exchange pipes in the same row, and the second heat exchange grid is horizontally arranged.

[0013] Preferably, a plurality of first heat exchange grids are provided between the two water tanks. The plurality of first heat exchange grids are equidistantly arranged along the length direction of the heat exchange pipe. The heat exchange pipe is fixedly connected to the first heat exchange grid, and the first heat exchange grid is vertically arranged with the second heat exchange grid.

[0014] Preferably, the first heat exchange mechanism includes a spray main pipe. The bottom end of the spray main pipe extends into the water surface. A spray water pump is provided on the spray main pipe. The top end of the spray main pipe is connected to a plurality of spray branch pipes, and the plurality of spray branch pipes are directly above the outlet end of the air supply mechanism.

[0015] Preferably, the air supply mechanism includes an air inlet pipe. The bottom end of the air inlet pipe is horizontally arranged. A plurality of air outlet openings are provided at the bottom end of the air inlet pipe. A fan is provided on the air inlet pipe, and the inlet end of the air inlet pipe is located indoors.

[0016] Preferably, a spray pipe filter screen is provided at the bottom end of the spray main pipe.

[0017] Preferably, a water replacement pipe filter screen is provided at the bottom end of the water replacement pipe.

[0018] Compared with the prior art, the present invention has the following advantages and technical effects:

[0019] In the present invention, the air supply mechanism sends the indoor air into the shallow well. The indoor air mixes with the well air and then rises, initially reducing the gas temperature. Then the mixed gas sequentially passes through the first heat exchange mechanism and the second heat exchange mechanism. The first heat exchange mechanism and the second heat exchange mechanism use the well water to cool the mixed gas for the second and third times. The gas after multiple coolings is sent into the room through the air supply pipe, realizing indoor refrigeration.

[0020] In the present invention, the air is cooled multiple times by well water. At the same time, the flow of air will accelerate the evaporation of well water. The evaporation of well water absorbs heat, further cooling the air, and then the cooled air is sent into the room to cool the room. In this process, the use of conventional air conditioners is reduced, greatly saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a schematic diagram of the structure of the second heat exchange mechanism in the present invention;

[0024] Among them, 1, shallow well; 2, spray main pipe; 3, spray water pump; 4, spray pipe filter; 6, water exchange pipe; 7, water exchange pipe filter; 8, water exchange pump; 9, spray branch pipe; 10, solenoid valve; 11, evaporator; 12, baffle; 13, heat exchange pipe; 14, air supply pipe; 15, fan; 16, overflow pipe; 17, air inlet pipe; 18, air outlet; 19, first heat exchange grid; 20, second heat exchange grid; 21, water tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0026] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0027] Refer to Figures 1 to 2, the present invention discloses a shallow well cold energy recovery air - conditioning refrigeration system, including: a air supply mechanism, the outlet end of the air supply mechanism is located in the shallow well 1 and above the water surface. A first heat exchange mechanism and a second heat exchange mechanism are arranged in the shallow well 1. The first heat exchange mechanism and the second heat exchange mechanism are arranged in sequence from bottom to top. The first heat exchange mechanism is directly above the outlet end of the air supply mechanism. The first heat exchange mechanism and the second heat exchange mechanism use well water to exchange heat with air. At the wellhead of the shallow well 1, there is an air supply pipe 14 for sending air into the room.

[0028] In the present invention, the air supply mechanism sends the indoor air into the shallow well 1. The indoor air and the air in the well mix and rise, initially reducing the gas temperature. Then the mixed gas sequentially passes through the first heat exchange mechanism and the second heat exchange mechanism. The first heat exchange mechanism and the second heat exchange mechanism use well water to cool the mixed gas for the second and third times. The gas after multiple coolings is sent into the room through the air supply pipe 14 to achieve indoor refrigeration.

[0029] In the present invention, the air is cooled multiple times by well water. At the same time, the flow of air will accelerate the evaporation of well water. The evaporation of well water absorbs heat, further cooling the air. Then the cooled air is sent into the room to cool the room. In this process, the use of conventional air conditioners is reduced, greatly saving energy.

[0030] Further optimized solution, the second heat exchange mechanism includes two parallel and symmetrically arranged water tanks 21. The water tanks 21 are installed on the inner side wall of the shallow well 1. Openings are provided on the opposite side walls of the two water tanks 21. Baffles 12 are fixedly connected at the openings. A plurality of heat exchange tubes 13 are fixedly connected between the two baffles 12. The plurality of heat exchange tubes 13 are arranged in an array. The heat exchange tubes 13 are horizontally arranged. The ends of the heat exchange tubes 13 penetrate through the baffles 12 and communicate with the water tanks 21. Well water flows in the water tanks 21 and the heat exchange tubes 13.

[0031] Air passes through the plurality of heat exchange tubes 13, and the air exchanges heat with the well water flowing in the heat exchange tubes 13, thereby reducing the temperature of the air.

[0032] The air flow direction is perpendicular to the water flow direction, improving the heat exchange effect.

[0033] Further optimized solution, the bottom end of one of the water tanks 21 is connected to a water exchange pipe 6. The bottom end of the water exchange pipe 6 is located below the water surface. A water exchange pump 8 and a solenoid valve 10 are arranged on the water exchange pipe 6. The solenoid valve 10 is close to the water tank 21.

[0034] The top end of the other water tank 21 is connected to the inlet end of an overflow pipe 16. The outlet end of the overflow pipe 16 is located in the shallow well 1.

[0035] When the temperature of the well water in the heat exchange tube 13 cannot meet the temperature requirement for heat exchange, the solenoid valve 10 and the water exchange pump 8 are opened, and the well water in the shallow well 1 is sent into the water tank 21. The well water enters another water tank 21 along the heat exchange tube 13, and the excessive well water returns to the shallow well 1 through the overflow pipe 16 to realize the circulation of the well water.

[0036] In a further optimized solution, an evaporator 11 is arranged in the water tank 21 communicated with the water exchange pipe 6, and the evaporator 11 is immersed in the well water.

[0037] When the temperature of the well water cannot directly meet the heat exchange requirement, the water in the water tank 21 communicated with the water exchange pipe 6 is cooled by the evaporator 11. Because the temperature of the well water is relatively low, the well water is cooled by the evaporator 11, and the cooling speed is relatively fast, and the energy consumption of the evaporator 11 can be effectively reduced.

[0038] In a further optimized solution, a second heat exchange grid 20 is fixedly connected between two adjacent heat exchange tubes 13 in the same row, and the second heat exchange grid 20 is horizontally arranged.

[0039] Air flows through the second heat exchange grid 20, and the air is turbulently flowed through the second heat exchange grid 20. At the same time, the second heat exchange grid 20 can also function as a heat exchange fin, and the heat exchange effect is better;

[0040] In a further optimized solution, a plurality of first heat exchange grids 19 are arranged between the two water tanks 21, and the plurality of first heat exchange grids 19 are arranged at equal intervals along the length direction of the heat exchange tube 13. The heat exchange tube 13 is fixedly connected to the first heat exchange grid 19, and the first heat exchange grid 19 is vertically arranged with respect to the second heat exchange grid 20.

[0041] The heat exchange effect of the air is further improved by the arrangement of the first heat exchange grid 19;

[0042] The first heat exchange grid 19, the second heat exchange grid 20 and the heat exchange tube 13 are all made of metal materials; the arrangements of the first heat exchange grid 19 and the second heat exchange grid 20 can also condense the water vapor in the rising air, separate the water vapor from the air, and avoid the problem of indoor humidity;

[0043] In a further optimized solution, the first heat exchange mechanism includes a spray main pipe 2, the bottom end of the spray main pipe 2 extends below the water surface, a spray water pump 3 is arranged on the spray main pipe 2, and the top end of the spray main pipe 2 is communicated with a plurality of spray branch pipes 9, and the plurality of spray branch pipes 9 are directly above the outlet end of the air supply mechanism.

[0044] The spray water pump 3 sends the well water through the spray main pipe 2 into the plurality of spray branch pipes 9, and then the well water exchanges heat with the air; the well water sprays downward, and the air flows upward. On the one hand, the contact area between the air and the well water is increased, and on the other hand, the water and the air flow in opposite directions, further improving the heat exchange effect.

[0045] For a further optimized solution, the air supply mechanism includes an air inlet pipe 17. The bottom end of the air inlet pipe 17 is horizontally arranged, and a plurality of air outlet openings 18 are provided at the bottom end of the air inlet pipe 17. A blower 15 is arranged on the air inlet pipe 17, and the inlet end of the air inlet pipe 17 is located indoors.

[0046] The blower 15 sends indoor air to the shallow well 1;

[0047] For a further optimized solution, a spray pipe filter screen 4 is arranged at the bottom end of the spray main pipe 2. This prevents sundries from entering the spray main pipe 2.

[0048] For a further optimized solution, a water exchange pipe filter screen 7 is arranged at the bottom end of the water exchange pipe 6. This prevents sundries from entering the water exchange pipe 6.

[0049] In the present invention, during refrigeration, only the blower 15 and the spray water pump 3 are always working, while the evaporator 11 and the water exchange pump 8 work intermittently, reducing energy consumption and thus achieving an energy-saving effect.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, 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 to the present invention.

[0051] The embodiments described above are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A shallow well cold recovery air conditioning refrigeration system, characterized in that: include: An air supply mechanism, wherein the outlet end of the air supply mechanism is located in a shallow water well (1) and above the water surface, a first heat exchange mechanism and a second heat exchange mechanism are arranged in the shallow water well (1), the first heat exchange mechanism and the second heat exchange mechanism are arranged in sequence from bottom to top, the first heat exchange mechanism is located directly above the outlet end of the air supply mechanism, the first heat exchange mechanism and the second heat exchange mechanism use well water to exchange heat with air, and an air supply pipe (14) for supplying air to the room is arranged at the wellhead of the shallow water well (1).

2. A shallow water well cold recovery air conditioning refrigeration system according to claim 1, characterized in that: The second heat exchange mechanism comprises two parallel and symmetrically arranged water troughs (21), the water troughs (21) being installed on the inner side walls of the shallow water well (1), the two water troughs (21) having openings on opposite side walls, the openings being fixedly connected with a baffle (12), a plurality of heat exchange tubes (13) being fixedly connected between the two baffles (12), the plurality of heat exchange tubes (13) being distributed in an array, the heat exchange tubes (13) being arranged horizontally, the ends of the heat exchange tubes (13) passing through the baffles (12) and being connected with the water troughs (21), and well water flowing in the water troughs (21) and the heat exchange tubes (13).

3. A shallow water well cold recovery air conditioning refrigeration system according to claim 2, characterized in that: The bottom end of one of the water tanks (21) is connected to a water changing pipe (6), the bottom end of the water changing pipe (6) is located below the water surface, a water changing pump (8) and a solenoid valve (10) are provided on the water changing pipe (6), and the solenoid valve (10) is close to the water tank (21); The top end of the other water tank (21) is connected to the inlet end of the overflow pipe (16), and the outlet end of the overflow pipe (16) is located in the shallow water well (1).

4. A shallow water well cold recovery air conditioning refrigeration system according to claim 3, characterized in that: An evaporator (11) is arranged in the water tank (21) which is connected to the water exchange pipe (6), and the evaporator (11) is immersed in well water.

5. The shallow water well cold recovery air conditioning refrigeration system according to claim 2, characterized in that: A second heat exchange grid (20) is fixedly connected between two adjacent heat exchange tubes (13) in the same row, and the second heat exchange grid (20) is arranged horizontally.

6. A shallow water well cold recovery air conditioning refrigeration system according to claim 5, characterized in that: A plurality of first heat exchange grids (19) are arranged between the two water tanks (21); the plurality of first heat exchange grids (19) are arranged at equal intervals along the length direction of the heat exchange tube (13); the heat exchange tube (13) is fixedly connected to the first heat exchange grids (19); and the first heat exchange grids (19) and the second heat exchange grids (20) are arranged vertically.

7. The shallow water well cold recovery air conditioning refrigeration system according to claim 1, characterized in that: The first heat exchange mechanism comprises a spray main pipe (2), the bottom end of the spray main pipe (2) extends below the water surface, a spray water pump (3) is arranged on the spray main pipe (2), and the top end of the spray main pipe (2) is connected to a plurality of spray branch pipes (9), and the plurality of spray branch pipes (9) are located directly above the outlet end of the air supply mechanism.

8. The shallow water well cold recovery air conditioning refrigeration system according to claim 7, characterized in that: The air supply mechanism comprises an air inlet pipe (17), the bottom end of the air inlet pipe (17) is arranged horizontally, a plurality of air outlets (18) are provided at the bottom end of the air inlet pipe (17), a fan (15) is arranged on the air inlet pipe (17), and the inlet end of the air inlet pipe (17) is located indoors.

9. The shallow water well cold recovery air conditioning refrigeration system according to claim 7, characterized in that: A spray pipe filter (4) is provided at the bottom end of the spray dry pipe (2).

10. The shallow water well cold recovery air conditioning refrigeration system according to claim 3, characterized in that: A water exchange pipe filter (7) is provided at the bottom end of the water exchange pipe (6).

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