Roof chilled water machine room

Abstract

The utility model discloses a roof chilled water machine room, which relates to the field of air conditioner design and comprises a machine room body, and a chilled water air conditioner is fixedly mounted on the roof of the machine room body; the chilled water air conditioner comprises an air inlet pipe, an air outlet pipe, a circulating refrigerator, a chilled water pump and a chilled water pipe; the circulating refrigerator is installed in the air inlet pipe, fans are fixedly installed in the air inlet pipe and the air outlet pipe, and the circulating refrigerator is fixedly installed in the air inlet pipe; the chilled water pipes exchange heat through the circulating refrigerator, two air channels are fixedly installed in the machine room, the air inlet pipe and the air outlet pipe are connected to the air channels respectively, the chilled water pipes are evenly arranged in the air channels of the air inlet pipe, and the two ends of the chilled water pipes are connected to a water inlet and a water outlet of the chilled water pump respectively. Heat exchange is carried out in the circulating refrigerator through the chilled water pipe, water in the chilled water pipe can be distributed along the air channel, then cold energy is evenly diffused into the air channel of the whole air inlet pipe, and large-space machine room refrigeration constant temperature can be carried out more rapidly.

Description

Technical Field

[0001] The utility model relates to the field of air conditioning design, in particular to a rooftop chilled water machine room. Background Art

[0002] The computer room air conditioning system is mainly divided into chilled water air conditioning system, air-cooled direct evaporative air conditioning system, water-cooled direct evaporative air conditioning system, dual cold source air conditioning system, etc.

[0003] The principle of chilled water air conditioners on the market is to extract heat from indoor air and use a compressor to extract cool, low-pressure gaseous refrigerant. The refrigerant is compressed in the compressor, and its temperature will increase with compression. The refrigerant enters the condenser after a very short distance. The compressed and heated gas in the condenser is taken away by the passing air. When it reaches the point determined by the pressure, the refrigerant will condense from gas to liquid, and then flow to a narrow point. A throttle valve or expansion valve can be set. The refrigerant will be sprayed into the evaporator in the process. The sprayed liquid refrigerant can be depressurized and evaporated, and then the temperature can be quickly reduced in the process. The remaining refrigerant will return to the compressor through the evaporator, and the air can be input into the indoor environment after heat exchange through the evaporator, thereby forming a circulating refrigeration system.

[0004] The above refrigeration system is difficult to apply to computer rooms with larger spaces. The temperature at the air outlet of the air conditioner will be significantly lower than that at other locations, making it difficult to evenly cool the entire computer room. The system has poor efficiency and occupies indoor space, resulting in poor constant temperature effect. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings, the utility model provides a technical solution that can solve the above-mentioned problems.

[0006] A rooftop chilled water machine room, comprising the machine room itself, wherein a chilled water air conditioner is fixedly installed on the roof of the machine room itself;

[0007] The chilled water air conditioner comprises an air inlet pipe, an air outlet pipe, a circulating refrigerator, a chilled water pump and a chilled water pipe;

[0008] The circulating refrigerator is installed in the air inlet pipe, and fans are fixedly installed in the air inlet pipe and the air outlet pipe. The circulating refrigerator is fixedly installed in the air inlet pipe, and the fan in the air inlet pipe draws air from the outside and inputs it into the machine room after passing through the circulating refrigerator. The fan in the air outlet pipe draws air from the machine room for output;

[0009] The middle part of the chilled water pipe passes through a circulating refrigerator for heat exchange. Two air ducts are fixedly installed on the top of the machine room itself. The air inlet pipe and the air outlet pipe are respectively connected to the air ducts. The chilled water pipes are evenly arranged in the air ducts of the air inlet pipes. The two ends of the chilled water pipes are respectively connected to the water inlet and outlet of the chilled water pump.

[0010] Further: an insulation pipe is fixedly installed in the air duct of the air inlet pipe, a chilled water pipe is installed in the insulation pipe, a plurality of cold air outlets are formed on the side wall of the air duct of the air inlet pipe, and the plurality of cold air outlets are arranged in an array at equal distances from each other, and a plurality of refrigeration holes are formed on the side wall of the insulation pipe, and the refrigeration holes are arranged one by one in the cold air outlet.

[0011] Furthermore: the diameter of the refrigeration hole increases as it moves away from the air inlet pipe.

[0012] Further: the circulating refrigerator comprises a compressor, a condenser, a liquid storage drying tank, a sprayer, an evaporator and an expansion valve, the compressor, the condenser, the liquid storage drying tank and the evaporator are connected to form a closed loop through a pipeline, the expansion valve is connected to both ends of the evaporator, and the sprayer is located between the condenser and the evaporator;

[0013] The fan draws air from the outside, passes it through the condenser for heat dissipation, then passes it through the sprayer for gasification, and finally passes it through the evaporator to be transported into the air duct.

[0014] Furthermore: the condenser, the sprayer and the evaporator are all fixedly installed in the air intake pipe, and the compressor, the liquid storage drying tank and the expansion valve are all arranged outside the air intake pipe.

[0015] Furthermore: a support frame is fixedly installed on the roof of the machine room itself, and the compressor, liquid storage drying tank and expansion valve are all fixedly installed on the support frame.

[0016] Further: the air outlet pipe is fixedly installed above the air inlet pipe, and an air heat exchanger is connected between the air outlet pipe and the air inlet pipe.

[0017] Further: the outer end of the air inlet pipe is connected to the first electric blind, the outer end of the air outlet pipe is connected to the second electric blind, a ventilation window is formed between the air inlet pipe and the air outlet pipe, the ventilation window is located on the inner side of the air heat exchanger, and a third electric blind is fixedly installed at the ventilation window.

[0018] Compared with the prior art, the beneficial effect of the utility model is: using the chilled water pipe to exchange heat in the circulating refrigerator, the water in the chilled water pipe will be arranged along the air duct, and then the cold energy will be evenly diffused in the air duct of the entire air inlet pipe, so that the cooling and constant temperature of the large space computer room can be carried out more quickly.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 yes Figure 1 Schematic diagram of the structure when the side covers of the air inlet and outlet pipes are opened;

[0023] Figure 3 It is a schematic diagram of the structure of the utility model after the machine room itself is hidden;

[0024] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure at point A;

[0025] Figure 5 yes Figure 3 A schematic diagram of the structure from another perspective;

[0026] Figure 6 yes Figure 5 A schematic diagram of the enlarged structure at B;

[0027] Figure 7 yes Figure 5 A schematic diagram of the enlarged structure at C;

[0028] Figure 8 It is a structural schematic diagram of the air inlet pipe and the air outlet pipe of the utility model;

[0029] Fig. 9 It is a structural schematic diagram of the support frame of the utility model.

[0030] As shown in the figure: 1. The machine room itself; 2. Chilled water air conditioner; 21. Inlet pipe; 22. Outlet pipe; 23. Circulating refrigerator; 231. Compressor; 232. Condenser; 233. Liquid storage drying tank; 234. Sprinkler; 235. Evaporator; 236. Expansion valve; 24. Chilled water pump; 25. Chilled water pipe; 3. Fan; 4. Air duct; 5. Insulation pipe; 6. Cold air outlet; 7. Refrigeration hole; 8. Support frame; 9. Air heat exchanger; 10. First electric shutter; 11. Second electric shutter; 12. Ventilation window; 13. Third electric shutter. DETAILED DESCRIPTION

[0031] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0032] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0033] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figure 1-9 As shown, a rooftop chilled water machine room of the utility model comprises a machine room 1, on the roof of which a chilled water air conditioner 2 is fixedly installed;

[0037] The chilled water air conditioner 2 includes an air inlet pipe 21, an air outlet pipe 22, a circulating refrigerator 23, a chilled water pump 24 and a chilled water pipe 25;

[0038] The circulating refrigerator 23 is installed in the air inlet pipe 21, and fans 3 are fixedly installed in the air inlet pipe 21 and the air outlet pipe 22. The circulating refrigerator 23 is fixedly installed in the air inlet pipe 21. The fan 3 in the air inlet pipe 21 extracts the air from the outside and inputs it into the machine room 1 after passing through the circulating refrigerator 23. The fan 3 in the air outlet pipe 22 extracts the air in the machine room 1 for output.

[0039] The middle part of the chilled water pipe 25 passes through the circulating refrigerator 23 for heat exchange. Two air ducts 4 are fixedly installed on the top of the machine room itself 1. The air inlet pipe 21 and the air outlet pipe 22 are respectively connected to the air duct 4. The chilled water pipe 25 is evenly arranged in the air duct 4 of the air inlet pipe 21. The two ends of the chilled water pipe 25 are respectively connected to the water inlet and outlet of the chilled water pump 24.

[0040] The principle is: using the chilled water pipe 25 to exchange heat in the circulating refrigerator 23, the water in the chilled water pipe 25 will be arranged along the air duct 4, and then the cold energy will be evenly diffused in the air duct 4 of the entire air inlet pipe 21, so that the cooling and constant temperature of the large space machine room can be carried out more quickly.

[0041] Furthermore: an insulation pipe 5 is fixedly installed in the air duct 4 of the air inlet pipe 21, and a freezing water pipe 25 is installed in the insulation pipe 5. A plurality of cold air outlets 6 are formed on the side wall of the air duct 4 of the air inlet pipe 21, and the plurality of cold air outlets 6 are arranged in an array at equal distances from each other. A plurality of refrigeration holes 7 are formed on the side wall of the insulation pipe 5, and the refrigeration holes 7 are arranged one by one in the cold air outlets 6; when the air duct 4 delivers air, the freezing water pipe 25 will transport cold energy to the entire air duct 4. The setting of the insulation pipe 5 can reduce the cold energy consumption of the freezing water pipe 25. Refrigeration holes 7 are arranged on the insulation pipe 5, and the refrigeration holes 7 correspond to the cold air outlets 6 on the air duct 4. When the cold air outlets 6 discharge air, the cold energy in the refrigeration holes 7 is brought out, thereby achieving uniform refrigeration and constant temperature in a large space.

[0042] Furthermore: the aperture of the refrigeration hole 7 is set to increase as it moves away from the air inlet pipe 21; when the air duct 4 is close to the air inlet pipe 21, the air volume has just been heat exchanged from the circulating refrigerator 23, so the temperature at this time is relatively low, and as the air duct 4 moves away from the air inlet pipe 21, the temperature will be higher as the heat of the air is transferred. At this time, by increasing the aperture of the refrigeration hole 7, more cold air can be brought out into the machine room, so that the temperature of each cold air outlet 6 will not differ too much, thereby achieving uniform cooling of the entire large space machine room.

[0043] Further: the circulating refrigerator 23 includes a compressor 231, a condenser 232, a liquid storage drying tank 233, a sprayer 234, an evaporator 235 and an expansion valve 236, the compressor 231, the condenser 232, the liquid storage drying tank 233 and the evaporator 235 are connected to form a closed loop through a pipeline, the expansion valve 236 is connected to both ends of the evaporator 235, and the sprayer 234 is located between the condenser 232 and the evaporator 235;

[0044] The fan 3 draws air from the outside and passes it through the condenser 232 for heat dissipation, then passes it through the sprayer 234 for gasification, and finally passes it through the evaporator 235 to be transported to the air duct 4;

[0045] The circulating refrigerator 23 can form a circulating refrigeration system, which can work continuously to ensure cooling and constant temperature inside the computer room 1 itself.

[0046] Furthermore: the condenser 232, the sprayer 234 and the evaporator 235 are all fixedly installed in the air inlet pipe 21, and the compressor 231, the liquid storage drying tank 233 and the expansion valve 236 are all arranged outside the air inlet pipe 21; a support frame 8 is fixedly installed on the roof of the machine room itself 1, and the compressor 231, the liquid storage drying tank 233 and the expansion valve 236 are all fixedly installed on the support frame 8; it can be placed on the outdoor roof without occupying indoor space.

[0047] Furthermore: the outlet pipe 22 is fixedly installed above the inlet pipe 21, and an air heat exchanger 9 is connected between the outlet pipe 22 and the inlet pipe 21; the air heat exchanger 9 can be used for heat exchange to reduce heat loss during ventilation.

[0048] Further: the outer end of the air inlet pipe 21 is connected to the first electric shutter 10, the outer end of the air outlet pipe 22 is connected to the second electric shutter 11, a ventilation window 12 is formed between the air inlet pipe 21 and the air outlet pipe 22, the ventilation window 12 is located on the inner side of the air heat exchanger 9, and a third electric shutter 13 is fixedly installed at the ventilation window 12; the electric shutters can be switched to achieve ventilation and circulating air cooling. When no one is in the machine room 1, it can be switched to the self-circulation mode, that is, the third electric shutter 13 is open. state, the first electric shutter 10 and the second electric shutter 11 are both in the closed state, at this time a circulation will be formed between the air inlet pipe 21 and the air outlet pipe 22, and the cooling loss at this time is the lowest; when there are people in the machine room itself 1, it can be switched to the ventilation mode, that is, the first electric shutter 10 and the second electric shutter 11 are both in the open state, and the third electric shutter 13 is in the closed state, at this time ventilation can be carried out to ensure the air circulation in the machine room itself 1, and the air heat exchanger 9 will be used in the ventilation process to reduce heat loss.

[0049] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the protection scope of the technical solution of the utility model.

Claims

1. A rooftop chilled water machine room, including the machine room itself, characterized in that: A chilled water air conditioner is fixedly installed on the roof of the machine room itself; The chilled water air conditioner comprises an air inlet pipe, an air outlet pipe, a circulating refrigerator, a chilled water pump and a chilled water pipe; The circulating refrigerator is installed in the air inlet pipe, and fans are fixedly installed in the air inlet pipe and the air outlet pipe. The circulating refrigerator is fixedly installed in the air inlet pipe, and the fan in the air inlet pipe draws air from the outside and inputs it into the machine room after passing through the circulating refrigerator. The fan in the air outlet pipe draws air from the machine room for output; The middle part of the chilled water pipe passes through a circulating refrigerator for heat exchange. Two air ducts are fixedly installed on the top of the machine room itself. The air inlet pipe and the air outlet pipe are respectively connected to the air ducts. The chilled water pipes are evenly arranged in the air ducts of the air inlet pipes. The two ends of the chilled water pipes are respectively connected to the water inlet and outlet of the chilled water pump.

2. A rooftop chilled water machine room according to claim 1, characterized in that: An insulation pipe is fixedly installed in the air duct of the air inlet pipe, and a chilled water pipe is installed in the insulation pipe. A plurality of cold air outlets are formed on the side wall of the air duct of the air inlet pipe, and the plurality of cold air outlets are arranged in an array at equal distances from each other. A plurality of refrigeration holes are formed on the side wall of the insulation pipe, and the refrigeration holes are arranged one by one in the cold air outlet.

3. A rooftop chilled water machine room according to claim 2, characterized in that: The diameter of the cooling hole increases as it moves away from the air inlet pipe.

4. A rooftop chilled water machine room according to claim 1, characterized in that: The circulating refrigerator comprises a compressor, a condenser, a liquid storage drying tank, a sprayer, an evaporator and an expansion valve. The compressor, the condenser, the liquid storage drying tank and the evaporator are connected to form a closed loop through a pipeline. The expansion valve is connected to both ends of the evaporator, and the sprayer is located between the condenser and the evaporator. The fan draws air from the outside, passes it through the condenser for heat dissipation, then passes it through the sprayer for gasification, and finally passes it through the evaporator to be transported into the air duct.

5. A rooftop chilled water machine room according to claim 4, characterized in that: The condenser, the sprayer and the evaporator are all fixedly installed in the air intake pipe, and the compressor, the liquid storage drying tank and the expansion valve are all arranged outside the air intake pipe.

6. A rooftop chilled water machine room according to claim 5, characterized in that: A support frame is fixedly installed on the roof of the machine room itself, and the compressor, liquid storage drying tank and expansion valve are all fixedly installed on the support frame.

7. The rooftop chilled water machine room according to claim 1, characterized in that: The air outlet pipe is fixedly installed above the air inlet pipe, and an air heat exchanger is connected between the air outlet pipe and the air inlet pipe.

8. The rooftop chilled water machine room according to claim 7, characterized in that: The outer end of the air inlet pipe is connected to the first electric shutter, the outer end of the air outlet pipe is connected to the second electric shutter, a ventilation window is formed between the air inlet pipe and the air outlet pipe, the ventilation window is located on the inner side of the air heat exchanger, and a third electric shutter is fixedly installed at the ventilation window.

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