CN205641690U - Double heating type combined type air conditioner system - Google Patents

Abstract

The utility model provides a heating-type combined air-conditioning system, which includes a room air-conditioning system in which a circulation channel is formed by a room compressor, an indoor heat exchanger, a first throttling device, and an outdoor heat exchanger; it also includes a machine room compressor, The machine room compressor is connected to the machine room condenser, the machine room throttling device and the machine room evaporator in turn through pipelines, and finally returns to the machine room compressor to form a circulation channel to obtain the machine room air conditioning system; the two ports of the evaporation channel of the condensing evaporator are respectively connected to the first throttle device and the machine room. The outdoor heat exchanger is connected, and the two ports of the condensation channel of the condensing evaporator are respectively connected with the compressor of the machine room and the condenser of the machine room. The condensing channel of the condensing evaporator uses the heat in the cooling cycle of the computer room air-conditioning system, and through the evaporation channel of the condensing evaporator, the room air-conditioning system forms a heating cycle channel, and uses the heat inside the computer room to heat the room, avoiding cold seasons in winter. Frosting, defrosting and low heating efficiency of the air conditioning system.

Description

A combined heating and air conditioning system

technical field

The utility model relates to the technical field of air conditioning control, in particular to a combined heating type air conditioning system.

Background technique

The existing computer room air-conditioning system is an independent refrigeration and air-conditioning system, which will generate additional heat energy, but the existing refrigeration system does not utilize the heat energy, resulting in waste of energy.

Utility model content

The utility model provides a heating-type combined air-conditioning system to solve the technical problem that the above-mentioned refrigeration system does not utilize heat energy, resulting in waste of energy.

In order to solve the above technical problems, the utility model provides a combined heating type air conditioning system, including a room compressor, a machine room compressor and a condensing evaporator. The room compressor has a room compressor exhaust port and a room compressor inlet. Air port, the exhaust port of the room compressor is sequentially connected to the indoor heat exchanger, the first throttling device and the outdoor heat exchanger through pipelines, and finally connected to the air inlet of the room compressor to form a circulation channel;

The machine room compressor is connected to the machine room condenser, the machine room throttling device and the machine room evaporator in turn through pipelines, and finally returns to the machine room compressor to form a circulation channel; the evaporation channel of the condensation evaporator is arranged between the first throttling device and the machine room evaporator. The condensing channel of the condensing evaporator is arranged on the pipeline between the machine room compressor and the machine room condenser.

The beneficial effect of the utility model is that: since the condensing evaporator is added in the pipeline of the computer room air-conditioning system and the room air-conditioning system, when the computer room air-conditioning system is cooling, it will pass through the computer room compressor, the condensation channel of the condensing evaporator, and the computer room throttling device. 1. The evaporator in the machine room forms a refrigeration cycle channel; at this time, the room air conditioning system forms a heating cycle channel through the room compressor, indoor heat exchanger, first throttling device, evaporation channel of the condensing evaporator and the outdoor heat exchanger; the condensing evaporator The condensation channel of the computer room uses the heat in the cooling cycle of the computer room air-conditioning system to form a heating cycle channel for the room air-conditioning system through the evaporation channel of the condensing evaporator, and uses the heat inside the computer room to heat the room, avoiding the cold season of the room in winter. Frost, defrost and heating inefficiencies.

Further, it also includes a four-way valve, and the four ports of the four-way valve are respectively connected with the exhaust port of the room compressor, the indoor heat exchanger, the air inlet of the room compressor and the outdoor heat exchanger; the first A bypass valve connected in parallel with the condensing evaporator is connected to the pipeline between the throttling device and the outdoor heat exchanger.

The beneficial effect of adopting the above-mentioned further scheme is: by setting the four-way valve, the refrigerant at the exhaust port of the compressor is reversed, realizing two functions of cooling and heating of the room air-conditioning system. The compressor, the four-way valve, the outdoor heat exchanger, the bypass valve, the first throttling device and the indoor heat exchanger form a refrigeration circulation channel; realizing the refrigeration function of the room air-conditioning system.

Further, a second throttling device is connected to the pipeline between the connection point between the outdoor heat exchanger and the bypass valve and the condensing evaporator.

The beneficial effect of adopting the above further solution is: through the second throttling device, when there is a large demand for heating in winter, the heat from the compressor in the machine room to the condensing evaporator is not enough. At this time, the second throttling device is adjusted, and then from The outdoor air side absorbs heat to improve the heating effect.

Further, the condensing evaporator is a shell-and-tube heat exchanger, a plate heat exchanger or a sleeve-and-tube heat exchanger.

The beneficial effects of adopting the above further scheme are: the shell-and-tube heat exchanger has a large heat exchange area, the flow rate is easy to adjust, and the overall structure is relatively firm; the plate heat exchanger has high heat exchange efficiency, small heat loss, compact and light structure, and occupies an area. It has the characteristics of small area, convenient installation and cleaning, wide application, and long service life; the casing heat exchanger has the characteristics of simple structure, free increase and decrease of heat transfer area, high heat transfer efficiency, and large working range.

Further, the first throttling device, the machine room throttling device and the second throttling device are capillary tubes, thermal expansion valves or electronic expansion valves.

The beneficial effects of adopting the above-mentioned further scheme are: the capillary tube is used as a throttling part, and the structure is relatively simple, and there are no moving parts, so it is more reliable; The throttling component, in addition to throttling, can also set the superheat of the system and realize energy saving of the system.

Further, both the room compressor and the machine room compressor are variable capacity compressors.

The beneficial effect of adopting the above further solution is that the capacity of the variable capacity compressor can be adjusted according to the load demand in the room, and the reliability of system operation is improved.

Further, the variable capacity compressor is a digital scroll compressor or an inverter compressor.

The beneficial effect of adopting the above further solution is: digital scroll compressor or variable frequency compressor, wherein the digital scroll compressor has a very good energy-saving effect; the variable frequency compressor has a wide operating range of capacity and better operating efficiency.

Description of drawings

Fig. 1 is a structural diagram of Embodiment 1 of the combined heating type air conditioning system of the present invention,

Fig. 2 is a working state diagram of the refrigeration of the computer room air-conditioning system in Embodiment 1,

Fig. 3 is a working state diagram of the cooling of the computer room air-conditioning system and the heating of the room air-conditioning system in Embodiment 1,

Fig. 4 is a working state diagram of the cooling of the computer room air-conditioning system and the cooling of the room air-conditioning system in the first embodiment.

In the accompanying drawings, the list of parts represented by each label is as follows:

01. Room compressor, 02. Indoor heat exchanger, 03. First throttling device, 04. Outdoor heat exchanger, 05. Machine room compressor, 06. Machine room condenser, 07. Machine room throttling device, 08. Machine room Evaporator, 09, condensing evaporator, 10, four-way valve, 11, bypass valve, 12, second throttling device

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Refer to Fig. 1 for the structural diagram of Embodiment 1 of the combined heating type air-conditioning system of the utility model.

Including room compressor 01, computer room compressor 05 and condensing evaporator 09, room compressor 01 has a room compressor exhaust port and a room compressor inlet, and the room compressor exhaust port is connected to the indoor heat exchanger 02 in sequence through pipelines 1. The first throttling device 03 and the outdoor heat exchanger 04 are finally connected to the air inlet of the compressor in the room to form a circulation channel;

The machine room compressor 05 is connected to the machine room condenser 06, the machine room throttling device 07 and the machine room evaporator 08 through pipelines, and finally returns to the machine room compressor 05 to form a circulation channel; the evaporation channel of the condensing evaporator 09 is set between the first throttling device 03 and the On the pipeline between the outdoor heat exchanger 04, the condensation channel of the condensing evaporator 09 is arranged on the pipeline between the machine room compressor 05 and the machine room condenser 06;

It also includes a four-way valve 10, and the four ports of the four-way valve 10 are respectively connected with the exhaust port of the room compressor and the indoor heat exchanger 02, the air inlet of the room compressor and the outdoor heat exchanger 04; the first throttling device A bypass valve 11 connected in parallel with the condensing evaporator 09 is connected to the pipeline between 03 and the outdoor heat exchanger 04.

When the air-conditioning system in the computer room is cooling, the refrigeration cycle channel is formed by the compressor in the computer room, the condensation channel of the condensing evaporator, the throttle device in the computer room, and the evaporator in the computer room; at this time, the air-conditioning system in the room passes through the compressor in the room, the indoor heat exchanger, the first section The heating circulation channel is formed by the flow device, the evaporation channel of the condensing evaporator and the outdoor heat exchanger; the condensing channel of the condensing evaporator utilizes the heat in the same channel of the refrigeration cycle in the air conditioning system of the computer room, and the room air conditioning system is formed through the evaporation channel of the condensing evaporator. The heating circulation channel uses the internal heat of the machine room to heat the room, avoiding the problems of frosting, defrosting and low heating efficiency of the room air conditioning system in the cold winter season. By setting the four-way valve, the refrigerant at the discharge port of the compressor is reversed, realizing two functions of cooling and heating of the room air conditioning system.

In this embodiment, a second throttling device 12 is connected to the pipeline between the connection point of the outdoor heat exchanger 04 and the bypass valve 11 and the condensing evaporator 09 . Through the second throttling device, when there is a large demand for heating in winter, the heat from the compressor in the machine room to the condensing evaporator is not enough. At this time, the second throttling device is adjusted to absorb heat from the outdoor air side to improve the heating efficiency. heat effect.

In this embodiment, the condensing evaporator 07 is a plate heat exchanger. The plate heat exchanger has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small footprint, convenient installation and cleaning, wide application and long service life.

In this embodiment, the first throttling device 03 , the engine room throttling device 07 and the second throttling device 12 are electronic expansion valves. As a throttling component, the electronic expansion valve not only has a throttling effect, but also can set the superheat of the system and realize energy saving of the system.

In this embodiment, both the room compressor 01 and the machine room compressor 05 are variable capacity compressors, and the variable capacity compressors are variable frequency compressors.

The variable frequency compressor has a wide operating range of capacity and better operating efficiency, and can adjust capacity according to the load demand in the room, which improves the reliability of the system operation.

In a specific embodiment, the condensing evaporator 07 is a heat exchanger of other structures such as a shell-and-tube heat exchanger or a sleeve-and-tube heat exchanger.

The shell and tube heat exchanger has a large heat exchange area, the flow rate is easy to adjust, and the overall structure is relatively firm; the sleeve heat exchanger has the characteristics of simple structure, free increase and decrease of heat transfer area, high heat transfer efficiency, and large working range.

In a specific embodiment, the first throttling device 03 , the machine room throttling device 07 and the second throttling device 12 are other throttling components such as capillary tubes or thermal expansion valves.

As a throttling part, the capillary tube has a relatively simple structure and no moving parts, so it is more reliable; as a throttling part, the thermal expansion valve has a certain self-regulating ability, and the regulating effect is better.

In a specific embodiment, the variable capacity compressor may be a digital scroll compressor. The energy-saving effect of the digital scroll compressor is very good.

Refer to Figure 2 for the working state diagram of the refrigeration of the computer room air-conditioning system in Embodiment 1. The refrigerant flows as shown by the arrows in the figure, passing through the computer room compressor 05, the condensation channel of the condensing evaporator 09, the computer room throttling device 07, and the computer room evaporator 08 constitutes a refrigeration cycle channel.

Refer to Figure 3 for the working state diagram of the cooling of the computer room air-conditioning system and the heating of the room air-conditioning system in Embodiment 1. The flow direction of the refrigerant is shown by the arrow in the figure. The condensing channel, the throttling device 07 in the machine room, and the evaporator 08 in the machine room constitute the refrigeration cycle channel; at this time, the room air-conditioning system passes through the evaporation channel of the room compressor 01, the indoor heat exchanger 02, the first throttling device 03, and the condensing evaporator 09 And the outdoor heat exchanger 04 forms a heating circulation channel.

Refer to Figure 4 for the working state diagram of the cooling of the computer room air-conditioning system and the cooling of the room air-conditioning system in Embodiment 1. The flow direction of the refrigerant is shown by the arrow in the figure. The channel, the throttling device 07 of the machine room, and the evaporator 08 of the machine room constitute the refrigeration cycle channel; when the room air-conditioning system is refrigerated, it passes through the room compressor 01, the four-way valve 10, the outdoor heat exchanger 04, the bypass valve 11, and the first throttling device 03 and indoor heat exchanger 02 form a refrigeration cycle channel; realize the refrigeration function of the room air conditioning system.

In describing the present invention, it should be understood that the terms "centre", "length", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom" The orientation or positional relationship indicated by , "inner", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific Orientation, construction and operation in a particular orientation, therefore should not be construed as limiting the invention.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrated; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two elements or the interaction relationship between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The combined heating and air conditioning system of the present invention has been introduced in detail above, and specific examples are used in this paper to illustrate the principle and implementation of the present invention. The description of the above embodiment is only used to help understand the core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. As mentioned above, the contents of this specification should not be construed as limiting the present utility model.

Claims (7)

1. a double heat supplying combined air-conditioning system, it is characterised in that include room compressor (01), Machine room compressor (05) and condenser/evaporator (09), described room compressor (01) has room compressor Air vent and room compressor inlet, described room exhaust outlet of compressor is sequentially connected with indoor by pipeline and changes Hot device (02), first throttle device (03) and outdoor heat exchanger (04), finally connect room compressor and enter QI KOU forms circulation canal；

Described machine room compressor (05) is sequentially connected with machine room condenser (06), machine room throttling arrangement by pipeline (07) and machine room vaporizer (08), finally return to machine room compressor (05) and form circulation canal；Described cold The evaporation channel of solidifying vaporizer (09) is arranged on described first throttle device (03) and described outdoor heat exchanger (04), on the pipeline between, the condensation channel of described condenser/evaporator (09) is arranged on the compression of described machine room On pipeline between machine (05) and described machine room condenser (06).

Double heat supplying combined air-conditioning system the most according to claim 1, it is characterised in that also include Cross valve (10), four ports of described cross valve (10) respectively with described room exhaust outlet of compressor, institute State indoor heat exchanger (02), room compressor inlet and outdoor heat exchanger (04) to connect；First throttle fills Put on the pipeline between (03) and outdoor heat exchanger (04) connect have with described condenser/evaporator (09) and The bypass valve (11) of connection.

Double heat supplying combined air-conditioning system the most according to claim 2, it is characterised in that described room Between external heat exchanger (04) and the junction point of described bypass valve (11) and described condenser/evaporator (09) Connect on pipeline and have the second throttling arrangement (12).

4. according to the double heat supplying combined air-conditioning system described in any one of claims 1 to 3, it is characterised in that Described condenser/evaporator (07) is shell and tube exchanger, plate type heat exchanger or double pipe heat exchanger.

Double heat supplying combined air-conditioning system the most according to claim 3, it is characterised in that described One throttling arrangement (03), described machine room throttling arrangement (07) and described second throttling arrangement (12) are capillary Pipe, heating power expansion valve or electric expansion valve.

6. according to the double heat supplying combined air-conditioning system described in any one of claims 1 to 3, it is characterised in that Described room compressor (01) and described machine room compressor (05) are all variable conpacitance compressor.

Double heat supplying combined air-conditioning system the most according to claim 6, it is characterised in that described change Capacity compressor is digital scroll compressor or frequency-changeable compressor.