Air conditioning system for operating room

Abstract

The present invention discloses an air conditioning system for an operating room, which includes an indoor cooling module and an outdoor heat exchange module connected through a pipeline. The outdoor heat exchange module includes a housing, a pump body, a front diversion pipe assembly with a liquid inlet pipe at one end, and a rear diversion pipe assembly with a liquid outlet pipe at one end. Both the front diversion pipe assembly and the rear diversion pipe assembly are composed of a plurality of heat exchange diversion pipes arranged in parallel at intervals. The head and tail ends of adjacent heat exchange diversion pipes are connected through a bent pipe. Heat dissipation fins are arranged on the outer side of the heat exchange diversion pipes. A first connecting pipe and a second connecting pipe are respectively inclined between the upper parts and the lower parts of adjacent heat exchange diversion pipes in the front diversion pipe assembly or the rear diversion pipe assembly located on the same side as the pump body and connected thereto. The included angles between the first connecting pipe and the second connecting pipe and the flow direction of the working medium in the heat exchange diversion pipes are 150°. The present invention reduces the noise of the working medium flow and also improves the overall heat exchange efficiency of the diversion pipes and the heat dissipation fins.

Description

Technical Field

[0001] The present invention relates to the technical field of medical air conditioning, and in particular to an air conditioning system for an operating room. Background Art

[0002] Hospitals are places where patients gather and air pollution is serious, and they have high requirements for air quality. Hospital air purification systems must have high-efficiency, long-lasting and stable air purification functions to eliminate microbial and chemical gas pollution in the air. Medical purification air conditioning equipment is to reasonably arrange the air supply and return air in the medical air-conditioned room, so that the purified and heat-humidified air is sent into the room from the air supply, and in the process of diffusion and mixing, the indoor residual heat and residual humidity are evenly eliminated, so that the working area forms a relatively uniform and stable temperature, humidity, air flow speed and cleanliness to meet the requirements of production technology and human comfort.

[0003] The heat exchanger assembly in the air conditioning system is an important component, which exists in almost all air-cooled air conditioning systems. Its main function is to exchange heat between the air conditioning refrigerant and the outside air to achieve heat transfer. In the prior art, the working medium noise of the guide pipe assembly in the air conditioning device is relatively large. Summary of the invention

[0004] The main purpose of the present invention is to provide an air conditioning system for an operating room, which reduces the noise of the working medium flow and improves the overall heat exchange efficiency of the guide pipe and the heat dissipation fins.

[0005] To achieve the above object, the technical solution adopted by the present invention is: an air conditioning system for an operating room, comprising an indoor cooling module and an outdoor heat exchange module connected by a pipeline, wherein a fan, a refrigeration module and at least two filters are arranged in an outer shell of the indoor cooling module;

[0006] The outdoor heat exchange module includes a shell, a pump body, a front guide pipe assembly with a liquid inlet pipe at one end and a rear guide pipe assembly with a liquid outlet pipe at one end, the other ends located below the front guide pipe assembly and the rear guide pipe assembly are connected through an intermediate pipe, the liquid inlet pipe and the liquid outlet pipe are located above the front guide pipe assembly and the rear guide pipe assembly respectively, and the pump body is connected to the front guide pipe assembly or the rear guide pipe assembly;

[0007] The front guide pipe assembly and the rear guide pipe assembly are both composed of a plurality of heat exchange guide pipes distributed in parallel and at intervals, the head and tail ends of adjacent heat exchange guide pipes are connected by a bend pipe, the outer side of the heat exchange guide pipe is provided with a heat dissipation fin, and the upper part and the lower part of the adjacent heat exchange guide pipes in the front guide pipe assembly or the rear guide pipe assembly located on the same side and connected to the pump body are obliquely provided with a first connecting pipe and a second connecting pipe, respectively, and the angle between the first connecting pipe and the second connecting pipe and the flow direction of the working medium in the heat exchange guide pipe is 150°;

[0008] A plurality of parallel thin tubes are circumferentially arranged on the outer surfaces of the first connecting pipe and the second connecting pipe respectively. The axial direction of the thin tube is parallel to the axial direction of the first connecting pipe or the second connecting pipe. A part of the space inside the thin tube is filled with a refrigerant, and the volume of the refrigerant accounts for 20% of the volume of the internal space of the thin tube.

[0009] The further improved solutions in the above technical solutions are as follows:

[0010] 1. In the above solution, the pump body is connected to the liquid inlet pipe of the front guide pipe assembly.

[0011] 2. In the above solution, a first connecting pipe and a second connecting pipe are respectively inclined between the upper parts and the lower parts of adjacent heat exchange guide pipes in the front guide pipe assembly.

[0012] 3. In the above solution, the heat dissipation fins are spirally arranged on the outer surface of the heat exchange guide pipe.

[0013] Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art:

[0014] 1. For the air conditioning system for operating rooms of the present invention, the liquid inlet pipe and the liquid outlet pipe of the outdoor heat exchange module are respectively installed on different front and rear guide pipe assemblies. A first connecting pipe and a second connecting pipe are respectively inclined between the upper part and the lower part of adjacent heat exchange guide pipes in the guide pipe assembly on the same side as the pump body and connected thereto. There is no connecting pipe between adjacent heat exchange guide pipes in the guide pipe assembly on the other side of the pump body. The included angles between the first connecting pipe, the second connecting pipe and the flow direction of the working medium in the heat exchange guide pipe are obtuse angles, which relieves the over-concentration of pressure in the guide pipe assembly close to the pump body, improves the uniformity of the pressure difference, and thus reduces the noise of the working medium flow.

[0015] 2. For the air conditioning system for operating rooms of the present invention, a plurality of thin tubes parallel to the axial direction of the first connecting pipe or the second connecting pipe are arranged on the outer surfaces of the inclined first connecting pipe and the second connecting pipe respectively, and a refrigerant is partially filled in the thin tubes, so as to efficiently cool the working medium that directly crosses from a part of the working medium in the front-stage heat exchange guide pipe to the working medium in the secondary heat exchange guide pipe, which is beneficial to improving the uniformity of heat distribution, reducing the thermal resistance, and thus improving the overall heat exchange efficiency of the guide pipe and the heat dissipation fins. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the air conditioning system for operating rooms of the present invention;

[0017] Figure 2 It is a schematic structural diagram of the outdoor heat exchange module in the air conditioning system for operating rooms of the present invention;

[0018] Figure 3 It is a partial structural schematic diagram of the outdoor heat exchange module in the air conditioning system for the operating room of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the guide pipe assembly of the outdoor heat exchange module in the air conditioning unit of the present invention;

[0020] Figure 5 is Figure 3 an enlarged view of the structure at position A in;

[0021] Figure 6 It is an enlarged partial structural diagram of the air conditioning system for the operating room of the present invention;

[0022] Figure 7 is Figure 6 a partial structural sectional view in;

[0023] Figure 8 It is a structural schematic diagram of the indoor cooling module in the air conditioning system for the operating room of the present invention;

[0024] Figure 9 It is a partial structural schematic diagram of the indoor cooling module in the air conditioning system for the operating room of the present invention.

[0025] In the above drawings: 1. Outdoor heat exchange module; 2. Housing; 3. Pump body; 4. Liquid inlet pipe; 5. Front guide pipe assembly; 6. Liquid outlet pipe; 7. Rear guide pipe assembly; 8. Intermediate pipe; 9. Thin pipe; 11. Heat exchange guide pipe; 12. Elbow; 13. Heat dissipation fin; 14. First communication pipe; 15. Second communication pipe; 21. Indoor cooling module; 22. Fan; 23. Refrigeration module; 24. Filter; 25. Air outlet duct; 26. Air outlet; 31. Support shell; 32. Coil; 33. Main pipe; 34. Heating rod. Detailed implementation manners

[0026] In the description of this patent, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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. Therefore, it should not be construed as a limitation to the present invention; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance; in addition, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0027] Embodiment 1: An air conditioning device for an operating room, comprising an indoor cooling module 21 and an outdoor heat exchange module 1 connected through a pipeline. Inside the housing of the indoor cooling module 21, a fan 22, a refrigeration module 23, and at least two filters 24 are arranged at intervals.

[0028] The outdoor heat exchange module 1 includes a housing 2, a pump body 3, a front diversion pipe assembly 5 with a liquid inlet pipe 4 at one end, and a rear diversion pipe assembly 7 with a liquid outlet pipe 6 at one end. The other ends located below the front diversion pipe assembly 5 and the rear diversion pipe assembly 7 respectively are connected through an intermediate pipe 8. The liquid inlet pipe 4 and the liquid outlet pipe 6 are respectively located above the front diversion pipe assembly 5 and the rear diversion pipe assembly 7. The pump body 3 is connected to the front diversion pipe assembly 5 or the rear diversion pipe assembly 7.

[0029] Both the front diversion pipe assembly 5 and the rear diversion pipe assembly 7 are composed of a plurality of heat exchange diversion pipes 11 distributed in parallel at intervals. The head and tail ends of adjacent heat exchange diversion pipes 11 are connected through a bent pipe 12. Heat dissipation fins 13 are arranged outside the heat exchange diversion pipes 11. Between the upper parts and the lower parts of adjacent heat exchange diversion pipes 11 in the front diversion pipe assembly 5 or the rear diversion pipe assembly 7 that is on the same side as and connected to the pump body 3, a first connecting pipe 14 and a second connecting pipe 15 are respectively arranged obliquely. The included angles between the first connecting pipe 14 and the second connecting pipe 15 and the flowing direction of the working medium in the heat exchange diversion pipes 11 are 150°.

[0030] A plurality of parallel distributed thin pipes 9 are arranged on the outer surfaces of the first connecting pipe 14 and the second connecting pipe 15 along the circumferential direction. The axial direction of the thin pipes 9 is parallel to the axial direction of the first connecting pipe 14 or the second connecting pipe 15. A part of the space inside the thin pipes 9 is filled with a refrigerant, and the volume of the refrigerant accounts for 20% of the internal space volume of the thin pipes 9.

[0031] Embodiment 2: An air conditioning system for an operating room, comprising an indoor cooling module 21 and an outdoor heat exchange module 1 connected through a pipeline. Inside the housing of the indoor cooling module 21, a fan 22, a refrigeration module 23, and at least two filters 24 are arranged at intervals.

[0032] The outdoor heat exchange module 1 includes a housing 2, a pump body 3, a front diversion pipe assembly 5 with a liquid inlet pipe 4 at one end, and a rear diversion pipe assembly 7 with a liquid outlet pipe 6 at one end. The other ends located below the front diversion pipe assembly 5 and the rear diversion pipe assembly 7 respectively are connected through an intermediate pipe 8. The liquid inlet pipe 4 and the liquid outlet pipe 6 are respectively located above the front diversion pipe assembly 5 and the rear diversion pipe assembly 7. The pump body 3 is connected to the front diversion pipe assembly 5 or the rear diversion pipe assembly 7.

[0033] Both the front diversion pipe assembly 5 and the rear diversion pipe assembly 7 are composed of a plurality of heat exchange diversion pipes 11 distributed in parallel at intervals. The head and tail ends of adjacent heat exchange diversion pipes 11 are connected through a bent pipe 12. Heat dissipation fins 13 are arranged on the outer side of the heat exchange diversion pipe 11. Between the upper parts and the lower parts of adjacent heat exchange diversion pipes 11 in the front diversion pipe assembly 5 or the rear diversion pipe assembly 7 that is on the same side as and connected to the pump body 3, a first connecting pipe 14 and a second connecting pipe 15 are respectively arranged obliquely. The included angles between the first connecting pipe 14, the second connecting pipe 15 and the flowing direction of the working medium in the heat exchange diversion pipe 11 are obtuse angles.

[0034] A plurality of parallel distributed thin pipes 9 are arranged on the outer surface of the first connecting pipe 14 and the second connecting pipe 15 along the circumferential direction. The axial direction of the thin pipe 9 is parallel to the axial direction of the first connecting pipe 14 or the second connecting pipe 15.

[0035] The above-mentioned pump body 3 is connected to the liquid inlet pipe 4 of the front diversion pipe assembly 5. Between the upper parts and the lower parts of adjacent heat exchange diversion pipes 11 in the front diversion pipe assembly 5, a first connecting pipe 14 and a second connecting pipe 15 are respectively arranged obliquely; the above-mentioned heat dissipation fins 13 are arranged in a spiral shape on the outer surface of the heat exchange diversion pipe 11.

[0036] There are also 4 air outlets 26 that are connected through an air outlet pipe 25 to the indoor cooling module 21 in a through manner; two of the above-mentioned filters 24 are respectively installed at both ends of the housing of the indoor cooling module 21, and the above-mentioned fan 22 and refrigeration module 23 are sequentially installed between the two filters 24.

[0037] The above-mentioned refrigeration module 23 further includes a support shell 31 and a plurality of coil pipes 32 arranged at intervals inside the support shell 31. At least one end of each coil pipe 32 extends out of the support shell 31 and is connected through a main pipe 33 in a through manner. A heating rod 34 is arranged between adjacent coil pipes 32. One end of each of the above-mentioned heating rods 34 extends out of the support shell 31 and is electrically connected to an external power source.

[0038] In use, first, turn off the air conditioning unit and the inlet refrigerant valve, keep the fan running, and heat the coil to room temperature through the heating rod; then, turn off the fan and heat the coil to 70°C through the heating rod; when the temperature of the coil reaches 70°C, maintain it for at least 10 minutes to completely dry the coil, so as to reliably kill all bacteria, fungi and fungal spores; finally, perform cooling; thus solving the problem that after the unit is turned off, the surface of the coil, including the surfaces of other components that come into contact with condensate and air during operation, remains moist for a long time and breeds bacteria, and can continuously and effectively prevent the breeding and growth of microorganisms in the air conditioner, protecting users from the influence of viruses, bacteria and molds.

[0039] When the above-mentioned air conditioner system for operating rooms is adopted, it alleviates the over-concentration of pressure in the flow guide tube assembly near the pump body, improves the uniformity of the pressure difference, and thus reduces the noise of the working medium flow;

[0040] Furthermore, a part of the working medium in the heat exchange flow guide tube of the previous stage can be directly diverted into the working medium of the secondary heat exchange flow guide tube for efficient cooling, which is beneficial to improving the uniformity of heat distribution, reducing the thermal resistance, and thus improving the overall heat exchange efficiency of the flow guide tube and the heat dissipation fins.

[0041] The above embodiments are only for explaining the technical concept and characteristics of the present invention, and their purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and should not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. An air conditioning system for an operating room, comprising an indoor cooling module (21) and an outdoor heat exchange module (1) connected by a pipeline, characterized in that: Inside the housing of the indoor cooling module (21), a blower (22), a refrigeration module (23), and at least two filters (24) are arranged at intervals. The outdoor heat exchange module (1) includes: a housing (2), a pump body (3), a front guide pipe assembly (5) with a liquid inlet pipe (4) at one end, and a rear guide pipe assembly (7) with a liquid outlet pipe (6) at one end. The other ends located below the front guide pipe assembly (5) and the rear guide pipe assembly (7) are connected by an intermediate pipe (8). The liquid inlet pipe (4) and the liquid outlet pipe (6) are respectively located above the front guide pipe assembly (5) and the rear guide pipe assembly (7). The pump body (3) is connected to the front guide pipe assembly (5) or the rear guide pipe assembly (7). Both the front guide pipe assembly (5) and the rear guide pipe assembly (7) are composed of a plurality of heat exchange guide pipes (11) arranged in parallel at intervals. The head and tail ends of adjacent heat exchange guide pipes (11) are connected by a bent pipe (12). Heat dissipation fins (13) are arranged on the outer side of the heat exchange guide pipes (11). A first connecting pipe (14) and a second connecting pipe (15) are respectively inclined between the upper parts and the lower parts of adjacent heat exchange guide pipes (11) in the front guide pipe assembly (5) or the rear guide pipe assembly (7) that is on the same side as and connected to the pump body (3). The angles between the first connecting pipe (14) and the second connecting pipe (15) and the flowing direction of the working medium in the heat exchange guide pipes (11) are 150°. A plurality of parallel distributed thin pipes (9) are arranged on the outer surface of each of the first connecting pipe (14) and the second connecting pipe (15) along the circumferential direction. The axial direction of the thin pipes (9) is parallel to the axial direction of the first connecting pipe (14) or the second connecting pipe (15). A part of the space inside the thin pipes (9) is filled with a refrigerant, and the volume of the refrigerant accounts for 20% of the internal space volume of the thin pipes (9).

2. The air conditioning system for operating rooms according to claim 1, wherein: The pump body (3) is connected to the liquid inlet pipe (4) of the front guide pipe assembly (5).

3. The air conditioning system for operating rooms according to claim 2, wherein: A first connecting pipe (14) and a second connecting pipe (15) are respectively inclined between the upper parts and the lower parts of adjacent heat exchange guide pipes (11) in the front guide pipe assembly (5).

4. The air conditioning system for operating room according to claim 1 or 3, characterized in that: The heat dissipation fins (13) are arranged in a spiral shape on the outer surface of the heat exchange guide pipes (11).

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