CN210801683U - Multi-split system - Google Patents

Abstract

The utility model discloses a many online systems. The multi-split air conditioner system comprises an outdoor unit and an indoor unit, wherein the outdoor unit comprises a compressor and an outdoor unit heat exchanger, the indoor unit comprises an air conditioner indoor unit, and refrigerant pipelines of the compressor, the outdoor unit heat exchanger and the air conditioner indoor unit are communicated with each other; the multiple on-line system further comprises: the hydraulic module comprises a first heat exchange loop and a second heat exchange loop which exchanges heat with the first heat exchange loop, and the first heat exchange loop is communicated with the output end and the input end of the compressor; and the auxiliary heating device comprises a water feeding pipeline, a water return pipeline and a heat exchange coil assembly, the heat exchange coil assembly is used for assisting the environment in the heating chamber, the heat exchange coil assembly is communicated with the water feeding pipeline and the water return pipeline, and the water feeding pipeline and the water return pipeline are communicated with the second heat exchange loop. The utility model discloses technical scheme improves the intensification ability of many online systems to the indoor environment, prevents that the temperature layering's phenomenon from appearing in the temperature of indoor environment.

Description

Multi-split system

Technical Field

The utility model relates to a many online technical field, in particular to many online systems.

Background

Due to the complexity of weather, the multi-split system needs to have multiple functions at the same time to meet the requirements of people. Under the refrigerated condition in summer, because air conditioner internal unit mounted position is higher, cold air flows downwards, and human travelling comfort is better, but the condition that the air conditioner heated in winter generally drives air cycle through indoor fan for indoor air and indoor heat exchanger heat transfer. Because the installation position of an air conditioner indoor unit is higher, air must be supplied to the lower part of a room by using high air flow and high air outlet temperature, the upper and lower temperature of the room is layered, the temperature of the upper layer (an area close to a ceiling) is higher, but the temperature of the lower layer (a living area) is lower.

The above description is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above description is prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a many online systems aims at improving many online systems to the intensification ability of indoor environment, prevents that the temperature layering's phenomenon from appearing in the temperature of indoor environment.

In order to achieve the above object, the multi-split system provided by the present invention comprises an outdoor unit and an indoor unit, wherein the outdoor unit comprises a compressor and an outdoor unit heat exchanger, the indoor unit comprises an air conditioner indoor unit, and refrigerant pipelines of the compressor, the outdoor unit heat exchanger and the air conditioner indoor unit are communicated with each other;

the multiple on-line system further comprises: the hydraulic module comprises a first heat exchange loop and a second heat exchange loop which exchanges heat with the first heat exchange loop, and the first heat exchange loop is communicated with the output end and the input end of the compressor; and

and the auxiliary heating device comprises a water feeding pipeline, a water return pipeline and a heat exchange coil assembly, the heat exchange coil assembly is used for assisting the environment in the heating chamber, the heat exchange coil assembly is communicated with the water feeding pipeline and the water return pipeline, and the water feeding pipeline and the water return pipeline are communicated with the second heat exchange loop.

Optionally, the heat exchange coil assembly includes a plurality of first heat exchange coils, and a plurality of first heat exchange coils all with water supply line with return water pipeline intercommunication.

Optionally, the heat exchange coil assembly further includes a water separator and a water collector, the water separator is communicated with the water supply pipeline, the water collector is communicated with the water return pipeline, a water inlet end of the first heat exchange coil is communicated with the water separator, and a water outlet end of the first heat exchange coil is communicated with the water collector.

Optionally, the multi-split system further comprises a communicating pipe for communicating the water separator and the water collector, and a bypass valve is arranged on the communicating pipe;

and/or the first heat exchange coil is provided with an electric actuator for controlling water inflow.

Optionally, the multiple on-line system further comprises a water tank, the water tank is arranged on the water supply pipeline and communicated with the water supply pipeline, and the water inlet end of the first heat exchange coil is communicated with the water tank.

Optionally, the multiple on-line system further comprises a water tank and a second heat exchange coil for heating liquid in the water tank, wherein the water inlet end of the second heat exchange coil is communicated with the water supply pipeline, and the outflow section of the second heat exchange coil is communicated with the water return pipeline.

Optionally, the second heat exchange coil is arranged in the water tank in a penetrating manner, and is at least partially positioned in the water tank;

or the second heat exchange coil is sleeved on the outer wall surface of the water tank.

Optionally, the multi-split system further comprises a water spraying device communicated with the water tank, and a water return pump is arranged on a pipeline of the water spraying device returning to the water tank;

and/or the multi-split system further comprises a three-way valve, a water inlet of the three-way valve is communicated with the water supply pipeline, a first water outlet of the three-way valve is communicated with a water inlet end of the second heat exchange coil, and a second water outlet of the three-way valve is communicated with a water inlet end of the first heat exchange coil.

Optionally, a water temperature sensor is arranged in the water tank;

and/or a water level sensor is arranged in the water tank;

and/or a first hydraulic auxiliary heating piece is arranged in the water tank.

Optionally, when a three-way valve communicated with the second heat exchange loop is arranged at a water inlet end of the second heat exchange coil, a first water pump (a first water pump) and a pipeline heating device are arranged on the water supply pipeline between the three-way valve and the second heat exchange loop;

and/or the water return pipeline is provided with a water supplementing device and an automatic water supplementing valve connected with the water return pipeline and the water supplementing device.

Optionally, the first heat exchange loop comprises an inlet section, a heat exchange section and an outlet section, the heat exchange section is communicated with the inlet section and the outlet section, and the heat exchange section is used for exchanging heat with the second heat exchange loop;

first heat transfer circuit still including set up in the liquid pipe head of entering section with set up in the trachea joint of outflow section, liquid pipe head connects the entering section with the output of compressor, trachea joint connection the outflow section with the input of compressor.

Optionally, the inlet section is provided with an electronic expansion valve;

and/or the inlet section and the outlet section are both provided with filters.

Optionally, the second heat exchange loop comprises a water inlet pipeline, a heat exchange pipeline and a water outlet pipeline, the heat exchange pipeline is communicated with the water inlet pipeline and the water outlet pipeline, the water inlet pipeline is communicated with the water return pipeline, and the water outlet pipeline is communicated with the water supply pipeline;

a water inlet valve is further arranged between the water inlet pipeline and the water return pipeline, and a water outlet valve is further arranged between the water outlet pipeline and the water supply pipeline.

Optionally, the water inlet pipeline is sequentially provided with a water channel filter, a water pressure gauge and a second water pump along the water inlet direction;

and/or the water outlet pipeline is sequentially provided with an expansion tank, a pressure release valve, a water flow switch and a second hydraulic auxiliary heating piece along the water outlet direction.

The utility model provides an among the technical scheme, under the heating mode, the refrigerant gets into the air conditioner internal unit from the output of compressor, and the refrigerant gets into outer quick-witted heat exchanger after air conditioner internal unit and indoor environment heat transfer, and then flows in the input of compressor from outer quick-witted heat exchanger. And after the refrigerant flows out of the output end of the compressor, the refrigerant flows into the first heat exchange loop of the hydraulic module, so that the temperature of the first heat exchange loop is increased. The first heat exchange loop exchanges heat with the second heat exchange loop, and the refrigerant after heat exchange flows back to the input end of the compressor from the first heat exchange loop. At this time, the second heat exchange loop obtains the heat of the first heat exchange loop, and it can be understood that a heat exchange medium (a refrigerant, water or other heat-conducting medium) is arranged in the second heat exchange loop. The second heat transfer circuit that is heated heats the water supply line that connects in it, and the water supply line heats the heat exchange coil pipe assembly of assisting the heat facility again to heat exchange coil pipe assembly can be used for the interior environment of auxiliary heating room, and then heat transfer medium flows back to second heat transfer circuit through the return water pipeline again, carries out the heating cycle of next round. When in the heating mode, the indoor environment is heated by the air conditioner indoor unit and the auxiliary heating device, so that the temperature of the indoor environment is uniformly increased. Therefore, the technical scheme of the utility model can improve the intensification ability of many online systems to the indoor environment, prevent that the temperature layering's phenomenon from appearing in the temperature of indoor environment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a next embodiment of the multi-split system in the heating mode according to the present invention;

fig. 2 is a schematic structural diagram of a next embodiment of the heating mode of the outdoor unit of the multi-split air conditioning system according to the present invention;

fig. 3 is a schematic structural diagram of a filter assembly of the multi-split air conditioning system according to a next embodiment of the heating mode of the present invention;

fig. 4 is a schematic structural diagram of a hydraulic module of the multi-split system according to a next embodiment of the heating mode of the present invention;

fig. 5 is a schematic structural diagram of a next embodiment of the heating mode of the water tank and the second heat exchange coil of the multi-split air conditioning system of the present invention;

fig. 6 is a schematic structural diagram of a heat exchange coil assembly of the multi-split air conditioning system according to a next embodiment of the heating mode of the present invention;

fig. 7 is a schematic structural diagram of a multi-split air conditioning system according to another embodiment of the present invention in a heating mode;

fig. 8 is a schematic structural diagram of a multi-split air conditioning system according to still another embodiment of the present invention in a heating mode;

fig. 9 is a schematic structural diagram of another embodiment of the multi-split system according to the present invention in the heating mode.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

The specific structure of the multi-split system 1000 will be mainly described below.

Referring to fig. 1, 7, 8 and 9, the whole pipeline structure and component arrangement of the multi-split air-conditioning system 1000 will be described first; in the embodiment of the present invention, the multi-split system 1000 includes an outdoor unit 100 and an indoor unit 200, the outdoor unit 100 includes a compressor 10 and an outdoor unit heat exchanger 50, the indoor unit 200 includes an air conditioner indoor unit 210 (the number of the air conditioner indoor units 210 may be multiple), and refrigerant pipelines of the compressor 10, the outdoor unit heat exchanger 50 and the air conditioner indoor unit 210 are communicated with each other;

the multi-split system 1000 further includes: a hydro module 300, the hydro module 300 comprising a first heat exchange loop 310 and a second heat exchange loop 320 in heat exchange with the first heat exchange loop 310, the first heat exchange loop 310 being in communication with an output and an input of the compressor 10; and

the auxiliary heating device 400 comprises a water supply pipeline 410, a water return pipeline 420 and a heat exchange coil assembly 430, wherein the heat exchange coil assembly 430 is used for assisting in heating an indoor environment, the heat exchange coil assembly 430 is communicated with the water supply pipeline 410 and the water return pipeline 420, and the water supply pipeline 410 and the water return pipeline 420 are communicated with the second heat exchange loop 320.

In order to better prevent the temperature of the indoor environment from being layered (the temperature of the upper layer (the area close to the ceiling) is high, but the temperature of the lower layer (the living area) is low), the auxiliary heating device 400 may be disposed at a lower layer (the living area), such as a wall surface and/or a floor surface of the indoor environment, as long as the auxiliary heating device 400 is capable of exchanging heat with the lower layer space of the indoor environment. It should be noted that the first heat exchanging coil 431 of the heat exchanging coil assembly 430 may be a coil-shaped heat exchanger. It is understood that it is a substantially helical piping system, such as a plastic-aluminum pipe in the form of a disc; such as a floor heating pipe disc installed in a shape of a Chinese character hui, and the like. The heat exchanger can be equipment for realizing heat transfer between materials between two or more than two fluids with different temperatures, and the heat exchanger can also transfer heat from the fluid with higher temperature to the fluid with lower temperature (or from the fluid with lower temperature to the fluid with higher temperature), so that the temperature of the fluid reaches the index specified by the process, thereby meeting the requirements of process conditions and simultaneously being equipment for improving the energy utilization rate. Thus, a heat exchange coil is understood to be a device that is helical for transferring heat between two or more fluids at different temperatures.

It should be noted that heat exchange media (refrigerant, water or other heat conducting media, and the technical scheme of the present application is described below with heat exchange media as water) may be disposed in the second heat exchange loop 320, the water supply pipeline 410, the water return pipeline 420 and the heat exchange coil assembly 430, so that after the second heat exchange loop 320 exchanges heat with the first heat exchange loop 310, the heat exchange media flow in the second heat exchange loop 320, the water supply pipeline 410, the water return pipeline 420 and the heat exchange coil assembly 430, thereby implementing heat exchange.

And, the heat exchange between the first heat exchange loop 310 and the second heat exchange loop 320 in the hydro module 300 may be performed by any method of heat conduction, heat convection, and heat radiation, as long as the heat exchange between the first heat exchange loop 310 and the second heat exchange loop 320 can be performed in a short time. In an embodiment, the first heat exchange loop 310 and the second heat exchange loop 320 may adopt a heat conduction manner, specifically, heat of the first heat exchange loop 310 may be transferred to the second heat exchange loop 320 by directly contacting the first heat exchange loop 310 and the second heat exchange loop 320 for heat exchange, or by an intermediate heat transfer medium. The heat conduction mode is adopted, so that heat can be conveniently transferred, and the production cost is conveniently reduced.

In some embodiments of the present application, the water return line 420 is provided with a water replenishing device 421 and an automatic water replenishing valve 422 connecting the water return line 420 and the water replenishing device 421. When heat exchange process is carried out to the heat transfer medium in the pipeline, probably because evaporation or other reasons reduce, set up moisturizing device 421 and automatic water replenishing valve 422 and can guarantee that heat transfer medium is sufficient, guarantee that first heat exchange coil 431 has sufficient heat transfer medium to the indoor environment heat transfer, guarantee heat exchange efficiency. It can be understood that a water path filter 3211 and a pressure stabilizing valve 423 may be sequentially disposed between the water replenishing device 421 and the automatic water replenishing valve 422, so as to ensure the content of heat exchange medium, ensure the heat exchange efficiency of the multi-split system 1000, and set the pressure stabilizing valve 423 to ensure the pressure of the heat exchange medium entering the water return pipeline 420 to be stable, thereby ensuring the heat exchange stability.

Referring to fig. 1 and 2, in an embodiment of the present application, the outdoor unit 100 may be understood as an outdoor unit of an air conditioner, which is provided with a compressor 10, a discharge pipe 11 communicated with a discharge side of the compressor 10, a high pressure switch 12 and an oil separator 13 sequentially provided on the discharge pipe 11, an outlet of the oil separator 13 is connected to a first connection port 31 of a four-way valve 30, a return port of the oil separator 13 is connected to a filter assembly 40, referring to fig. 3, the filter assembly 40 includes a filter 41 connected to the return port of the oil separator 13, a first branch pipe 42 connected to an outlet of the filter 41, an oil return capillary tube 43 connected to one side of the first branch pipe 42, a hot gas bypass solenoid valve 45 and a hot gas bypass capillary tube 44 connected to the other side of the first branch pipe 42, an outlet of the return capillary tube and an outlet of the hot gas bypass capillary tube 44 are both, the outlet of the gas-liquid separator 80 is connected to a low-pressure suction pipe of the compressor 10. With such an arrangement, the refrigerant and the oil can be separated after the refrigerant flows out of the compressor 10, thereby improving the heat transfer efficiency of the refrigerant and improving the stability of the outdoor unit 100.

The second interface 32 of the four-way valve 30 is connected with an outer machine heat exchanger 50, the outlet of the outer machine heat exchanger 50 is connected with a filter 41, the outlet of the filter 41 is provided with an electronic expansion valve 51 and a one-way valve 52 which are connected in parallel, the outlet ends of the electronic expansion valve 51 and the one-way valve 52 are provided with a refrigerant ring 60, the outlet end of the refrigerant ring 60 is provided with a second branch pipe 61, one side of the second branch pipe 61 is connected with an enthalpy injection electronic expansion valve 51, the enthalpy injection electronic expansion valve 51 is connected with a first inlet at the liquid side of an economizer 70, the other side of the second branch pipe 61 is communicated with a second inlet of the economizer 70, the economizer 70 is provided with a first connecting section for connecting the first inlet and the first outlet and a second connecting section for connecting the second inlet and the second outlet, the first outlet of the economizer 70 is communicated with a middle pressure suction inlet of the compressor 10, the second outlet of the economizer 70 is, and further to the inlet end (the end having the liquid pipe joint 3111) of the first heat exchange circuit 310 and the air conditioner indoor unit 210, the output end of the air conditioner indoor unit 210 is connected to the second pressure valve 1002, and then to the third port 33 of the four-way valve 30, and the fourth port 34 of the four-way valve 30 is connected to the inlet end of the gas-liquid separator 80 after being connected to the low-pressure switch 14. The economizer 70 is arranged, so that part of the refrigerant enters the first connecting section of the economizer 70 to absorb heat and evaporate after being throttled and depressurized by the enthalpy-injection electronic expansion valve 51, evaporated medium-pressure saturated steam flows back to the medium-pressure suction port of the compressor 10 and is mixed with the refrigerant at the low-pressure suction port of the compressor 10 to be compressed, the problems of small refrigerant flow, low return air pressure, high compression ratio and the like in a low-temperature environment are solved, and the reliability of a low-temperature heating capacity and a system is improved. Further, the filter 41 is arranged to further ensure the content of the refrigerant in the refrigerant circulation loop, and improve the heat exchange efficiency of the multi-split system 1000. And the refrigerant ring 60, the check valve 52 and the electronic expansion valve 51 are arranged, so that the heat exchange efficiency of the refrigerant can be further improved, and the heat exchange efficiency of the multi-split system 1000 can be further improved.

The utility model discloses among the technical scheme, under the heating mode, the refrigerant gets into air conditioner internal unit 210 from compressor 10's output, and the refrigerant gets into outer quick-witted heat exchanger 50 after air conditioner internal unit 210 and indoor environment heat transfer, and then flows into compressor 10's input from outer quick-witted heat exchanger 50. After flowing out of the output end of the compressor 10, the refrigerant flows into the first heat exchange circuit 310 of the hydro module 300, and the temperature of the first heat exchange circuit 310 is increased. The first heat exchange loop 310 exchanges heat with the second heat exchange loop 320, and the heat-exchanged refrigerant flows back to the input end of the compressor 10 from the first heat exchange loop 310. At this time, the second heat exchange loop 320 obtains heat of the first heat exchange loop 310. The heated second heat exchanging loop 320 heats the water supply pipe 410 connected to the second heat exchanging loop, and the water supply pipe 410 heats the heat exchanging coil assembly 430 of the auxiliary heating device 400, so that the heat exchanging coil assembly 430 can be used for assisting in heating the indoor environment, and the heat exchanging medium flows back to the second heat exchanging loop 320 through the water returning pipe 420 to perform the next round of heating cycle. In the heating mode, the indoor environment is heated by the air conditioner indoor unit 210 and the auxiliary heating device 400, so that the temperature of the indoor environment is uniformly increased. Therefore, the technical scheme of the utility model improve the intensification ability of multi-split system 1000 to the indoor environment, prevent that the temperature layering's phenomenon from appearing in the temperature of indoor environment.

Referring to FIG. 6, in some embodiments of the present application, the heat exchange coil assembly 430 includes a plurality of first heat exchange coils 431, and the plurality of first heat exchange coils 431 are all in communication with the feedwater line 410 and the return line 420. Providing a plurality of first heat exchanging coils 431 may increase the contact area of heat exchanging coil assembly 430 with the indoor environment, thereby improving the heat exchanging efficiency with respect to the indoor environment. It can be understood that a plurality of first heat exchange coil 431 can adopt the connected mode of series connection, or adopt the connected mode of parallel connection, in this embodiment, adopt the mode that a plurality of first heat exchange coil 431 are parallelly connected each other, because the mode of parallel connection can make first heat exchange coil 431 heat alone, the user control of being more convenient for to parallelly connected setting can make a plurality of first heat exchange coil 431 warm up simultaneously (unlike the mode of series connection, need heat in proper order), has improved heat exchange efficiency. And, an electric actuator 434 for controlling water inflow may be further disposed at the inlet end of the first heat exchanging coil 431, so that a user may control the rate of the heat exchanging medium entering the first heat exchanging coil 431 through the electric actuator 434, and further control the temperature rise temperature and the temperature rise efficiency of the indoor environment, thereby facilitating use.

In some embodiments of the present application, the heat exchanging coil assembly 430 further includes a water separator 432 and a water collector 433, the water separator 432 is communicated with the water supply pipeline 410, the water collector 433 is communicated with the water return pipeline 420, the water inlet end of the first heat exchanging coil 431 is communicated with the water separator 432, and the water outlet end of the first heat exchanging coil 431 is communicated with the water collector 433. The water separator 432 is arranged, so that the water inlet end of the heat exchange coil assembly 430 always has certain water pressure, when the electric actuator 434 controls water inlet, the water can be supplemented to the first heat exchange coil 431 in the first time, and the heat exchange efficiency of the first heat exchange coil 431 is ensured. And, through setting up the collector 433 with the play water end intercommunication of first heat exchange coil 431, when electric actuator 434 control was intake, the water in the first heat exchange coil 431 can directly get into in collector 433 to be convenient for the very first time for first heat exchange coil 431 supplies heat exchange medium, guarantee heat exchange coil's heat exchange efficiency.

In some embodiments of the present disclosure, the multi-split system 1000 further includes a communication pipe communicating the water separator 432 and the water collector 433, and the communication pipe is provided with a bypass valve 435. The water collector 433 is communicated with the water separator 432, so that the water feeding pipeline 410 and the water returning pipeline 420 can be circulated without passing through the first heat exchange coil 431, the heat exchange medium circulation loops of the water feeding pipeline 410, the water separator 432, the water collector 433, the water returning pipeline 420 and the second heat exchange loop 320 are smooth, the heat exchange medium in the multi-split system 1000 can be kept at a high temperature all the time, the temperature of the first heat exchange coil 431 can be raised in time, and the heat exchange efficiency of the indoor environment is improved. It can be understood that the water separator 432 and the water collector 433 are provided with accommodating cavities for accommodating heat transfer media, so that the heat transfer media can be conveniently accommodated.

Referring to fig. 1 and 7, in some embodiments of the present application, a water outlet valve 1003, a first water pump 1004 and a pipeline heating device 1005 are sequentially arranged on the water supply pipeline 410 along the water flow direction, and the water outlet valve 1003 is arranged to allow water in the second heat exchange loop 320 to enter the water supply pipeline 410, so as to provide a heat exchange medium for the environment in the heating chamber. Considering that the second heat exchange circuit 320 may be spaced apart from the indoor environment, a first water pump 1004 is provided to the water supply line 410 so as to transport the water in the second heat exchange circuit 320 to each of the first heat exchange coils 431 installed in the indoor environment. And considering that heat of the heat exchange medium may be lost when the heat exchange medium is transported for a long distance, the pipe heating device 1005 is disposed on the water supply pipe 410 to heat the pipe, so that heat loss of the heat exchange medium is reduced when the heat exchange medium is transported for a long distance, and heat exchange efficiency of the indoor environment is improved. Specifically, the pipeline heating device 1005 can be an electric pipeline heater, which is composed of a plurality of tubular electric heating elements, a cylinder, a guide plate and the like, wherein the tubular electric heating elements are formed by putting high-temperature resistance wires into a metal pipe, and tightly filling crystalline magnesium oxide powder with good insulativity and thermal conductivity into a gap part, and the tubular electric heating elements are used as heating bodies. Furthermore, a flow guide partition plate can be arranged in the cylinder body, so that air is heated uniformly during circulation, and the heating efficiency of the electric pipeline heater on the water supply pipeline 410 is improved.

Referring to fig. 1, 5 and 9, in some embodiments of the present disclosure, the multi-split system 1000 further includes a water tank 500, and the water tank 500 is disposed on the water supply line 410. Under a user state, this water tank 500 communicates with water supply line 410, namely, the water that flows out from second heat exchange loop 320 gets into water tank 500 and stores, flows out from water tank 500 again and is used for the heat transfer of indoor environment to make the hot water after the heat transfer of second heat exchange loop 320 obtain the storage, when guaranteeing that hydrothermal supply is not enough, can supply the hot water supply, and then guarantee first heat exchange coil 431's heating efficiency, guarantee the heat exchange efficiency of many online systems 1000 to indoor environment.

Referring to fig. 5, in an embodiment of the present application, the multi-split system 1000 further includes a second heat exchange coil 436 for heating the liquid in the water tank 500, a water inlet end of the second heat exchange coil 436 is communicated with the water supply pipe 410, and an outflow section 313 of the second heat exchange coil 436 is communicated with the water return pipe 420. In another usage situation, the water tank 500 is not communicated with the water supply line 410 (i.e. the heat exchange medium inside the water supply line 410 cannot flow into the water tank 500 for storage), but the water tank 500 is heated by the second heat exchange coil 436 communicated with the water supply line 410, so that the water with higher cleanliness (or other liquid to be heated) can be stored in the water tank 500, and the functionality of the water tank 500 is improved.

Referring to fig. 5, in some embodiments of the present application, the second heat exchanging coil 436 is disposed through the water tank 500 and at least partially located in the water tank 500; it can be understood that the wall surface of the tank body of the water tank 500 is provided with a mounting hole for the second heat exchanging coil 436 to extend into and out of, and the mounting hole is further provided with a waterproof joint, so that when the second heat exchanging coil 436 is mounted in the water tank 500, the water tank 500 can still maintain a good seal. By extending the second heat exchanging coil 436 into the water tank 500, the liquid to be heated contained in the water tank 500 can be directly heated, and the heating mode of directly performing heat exchange can make the temperature rise rate of the liquid to be heated faster, reduce the consumption of heat and improve the heat exchange rate. In an embodiment, the water tank 500 may further be connected to a water replenishing device 421, so that when the water tank 500 needs to be replenished, the water tank 500 is replenished, and the water in the water tank 500 is sufficient. And, the bottom of the water tank 500 is further provided with a drain pipe 510, so that accumulated water in the water tank 500 is conveniently drained, and the cleanness of the water tank 500 is ensured.

In some embodiments of the present application, the second heat exchanging coil 436 is sleeved on the outer wall surface of the water tank 500. So set up and equally can carry out better heating to water tank 500 to owing to need not carry out the change of structure to water tank 500, guaranteed the stability of water tank 500 structure, and reduced manufacturing cost.

In some embodiments of the present disclosure, the multi-split system 1000 further includes a water spraying device 600 communicated with the water tank 500, and a return pump 610 is disposed on a pipeline of the water spraying device 600 returning to the water tank 500; the water spray device 600 may be provided to allow a user to spray water in the water tank 500, and in one embodiment, the water spray device 600 may include a shower head so that the user can take a shower using the water in the water tank 500. And, set up return water pump 610 through the pipeline that flows back in water tank 500 at water jet equipment 600 for when using water jet equipment 600, can draw the water in the water tank 500 through return water pump 610, when need not using, can take out the water in water jet equipment 600 through return water pump 610 (can close water jet equipment 600's inlet port this moment), prevent ponding in the water jet equipment 600, improve water jet equipment 600's life.

Referring to fig. 1, in some embodiments of the present disclosure, the multi-split system 1000 further includes a three-way valve 1006, a water inlet of the three-way valve 1006 is communicated with the water supply pipeline 410, a first water outlet of the three-way valve 1006 is communicated with a water inlet of the second heat exchange coil 436, and a second water outlet of the three-way valve 1006 is communicated with a water inlet of the first heat exchange coil 431. The three-way valve 1006 is arranged on the water supply pipeline 410, so that the water supply pipeline 410 can supply heat for the first heat exchange coil 431 or the second heat exchange coil 436 independently, a user can use the heat of the heat exchange medium in a centralized manner, the heat exchange medium is prevented from flowing into a place where the user does not need to heat, and the heat exchange efficiency of the multi-split system 1000 is improved. When the three-way valve 1006 is provided, the water feed line 410 between the three-way valve 1006 and the second heat exchange circuit 320 is provided with a first water pump 1004 (first water pump 1004) and a pipe heating device 1005. Considering that the second heat exchange circuit 320 may be spaced apart from the indoor environment, a first water pump 1004 is provided to the water supply line 410 so as to transport the water in the second heat exchange circuit 320 to each of the first heat exchange coils 431 installed in the indoor environment. And considering that heat of the heat exchange medium may be lost when the heat exchange medium is transported for a long distance, the pipe heating device 1005 is disposed on the water supply pipe 410 to heat the pipe, so that heat loss of the heat exchange medium is reduced when the heat exchange medium is transported for a long distance, and heat exchange efficiency of the indoor environment is improved.

Referring to fig. 5, in some embodiments of the present application, a water temperature sensor 520 is disposed in the water tank 500; the water temperature sensor 520 may be a water temperature sensor having a thermistor disposed therein, so that the temperature of water in the water tank 500 can be sensed well, and the user can control the temperature in the water tank 500 and use the water conveniently.

And/or, a water level sensor 530 is arranged in the water tank 500; the water level sensor 530 may be a water level sensor so as to sense the height of the water level in the water tank 500 well, thereby facilitating the user to control the water level in the water tank 500.

And/or a first hydraulic auxiliary heating element 540 is arranged in the water tank 500. The first hydraulic auxiliary heating device 400 may be an electric heater, and the electric heater may well convert heat energy into heat energy, so as to heat water in the water tank 500, thereby facilitating a user to use the water.

Referring to fig. 1 and 4, in some embodiments of the present application, the first heat exchange loop 310 includes an inlet section 311, a heat exchange section 312 and an outlet section 313, the heat exchange section 312 is communicated with the inlet section 311 and the outlet section 313, and the heat exchange section 312 is used for heat exchange with the second heat exchange loop 320;

the first heat exchanging loop 310 further includes a liquid pipe connector 3111 disposed at the inlet section 311 and a gas pipe connector 3131 disposed at the outlet section 313, the liquid pipe connector 3111 connects the inlet section 311 and an output end of the compressor 10, and the gas pipe connector 3131 connects the outlet section 313 and an input end of the compressor 10.

The liquid pipe joint 3111 is arranged to facilitate the first heat exchanging loop 310 to receive the high-temperature high-pressure liquid refrigerant output by the output end of the compressor 10, and the gas pipe joint 3131 is arranged to facilitate the discharge of the medium-low temperature refrigerant after heat exchange in the heat exchanging section 312 is completed, so as to facilitate the circulation of the refrigerant in the first heat exchanging loop 310. It can be understood that the heat exchanging section 312 can be a spiral coil, so as to increase the contact area with the second heat exchanging loop 320, increase the heat exchanging efficiency, and further increase the heat exchanging efficiency of the first heat exchanging coil 431 to the indoor environment.

In some embodiments of the present application, the intake section 311 is provided with an electronic expansion valve 51; the electronic expansion valve 51 is arranged to facilitate throttling of the refrigerant, and improve the heat exchange efficiency between the heat exchange section 312 and the second heat exchange loop 320.

In some embodiments of the present application, both the inlet section 311 and the outlet section 313 are provided with a filter 41. The filter 41 can increase the content of the refrigerant in the refrigerant circulation circuit and improve the heat exchange efficiency of the refrigerant.

Referring to FIG. 4, in some embodiments of the present application, the second heat exchange loop 320 comprises a water inlet line 321, a heat exchange line 322, and a water outlet line 323, the heat exchange line 322 communicates the water inlet line 321 and the water outlet line 323, the water inlet line 321 communicates with the water return line 420, and the water outlet line 323 communicates with the water supply line 410;

a water inlet valve 1007 is further arranged between the water inlet pipeline 321 and the water return pipeline 420, and a water outlet valve 1003 is further arranged between the water outlet pipeline 323 and the water supply pipeline 410. The water supplementing device 421 and the water returning pipeline 420 are convenient for supplementing water for the second heat exchange loop 320, so that the heat exchange medium in the second heat exchange loop 320 is sufficient, and the heat exchange efficiency of the first heat exchange coil 431 and the second heat exchange coil 436 is improved.

In some embodiments of the present application, the water inlet pipeline 321 is sequentially provided with a water path filter 3211, a water pressure gauge 3212, and a second water pump 3213 along a water inlet direction; the water path filter 3211 is arranged to filter the heat exchange medium entering the second heat exchange loop 320, so as to increase the content of the heat exchange medium and further increase the heat exchange efficiency. And the water pressure gauge 3212 can monitor the pressure of the heat exchange medium entering the second heat exchange loop 320, ensure the pressure stability of the heat exchange medium in the second heat exchange loop 320, and ensure the stability of heat exchange.

In some embodiments of the present application, the water outlet pipe 323 is sequentially provided with an expansion tank 3231, a pressure relief valve 3232, a water flow switch 3234 and a second hydraulic auxiliary heating element 3233 along the water outlet direction. Due to the arrangement, the heat exchange medium of the second heat exchange loop 320 is ensured to flow more smoothly, the stability of the water outlet pipeline 323 is ensured, and the heat exchange efficiency of the multi-split system 1000 is improved.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (14)

1. The multi-split system is characterized by comprising an outdoor unit and an indoor unit, wherein the outdoor unit comprises a compressor and an outdoor unit heat exchanger, the indoor unit comprises an air conditioner indoor unit, and refrigerant pipelines of the compressor, the outdoor unit heat exchanger and the air conditioner indoor unit are communicated with each other;

the multiple on-line system further comprises: the hydraulic module comprises a first heat exchange loop and a second heat exchange loop which exchanges heat with the first heat exchange loop, and the first heat exchange loop is communicated with the output end and the input end of the compressor; and

and the auxiliary heating device comprises a water feeding pipeline, a water return pipeline and a heat exchange coil assembly, the heat exchange coil assembly is used for assisting the environment in the heating chamber, the heat exchange coil assembly is communicated with the water feeding pipeline and the water return pipeline, and the water feeding pipeline and the water return pipeline are communicated with the second heat exchange loop.

2. The multi-split system as claimed in claim 1, wherein the heat exchange coil assembly includes a plurality of first heat exchange coils, and the plurality of first heat exchange coils are all communicated with the water supply line and the water return line.

3. The multi-split system as claimed in claim 2, wherein the heat exchanging coil assembly further includes a water separator and a water collector, the water separator is communicated with the water supply line, the water collector is communicated with the water return line, the water inlet end of the first heat exchanging coil is communicated with the water separator, and the water outlet end of the first heat exchanging coil is communicated with the water collector.

4. The multi-split system as claimed in claim 3, further comprising a communication pipe communicating the water separator and the water collector, the communication pipe being provided with a bypass valve;

and/or the first heat exchange coil is provided with an electric actuator for controlling water inflow.

5. The multi-split system as claimed in any one of claims 2 to 4, further comprising a water tank disposed on and in communication with the water supply line, wherein the water inlet end of the first heat exchange coil is in communication with the water tank.

6. The multi-split system as claimed in any one of claims 2 to 4, further comprising a water tank and a second heat exchange coil for heating liquid in the water tank, wherein a water inlet end of the second heat exchange coil is communicated with the water supply pipeline, and an outflow section of the second heat exchange coil is communicated with the water return pipeline.

7. The multi-split system as claimed in claim 6, wherein the second heat exchanging coil is disposed through the water tank and at least partially located in the water tank;

or the second heat exchange coil is sleeved on the outer wall surface of the water tank.

8. The multi-split system as claimed in claim 6, further comprising a water spraying device communicated with the water tank, wherein a return water pump is provided on a pipeline of the water spraying device returning to the water tank;

and/or the multi-split system further comprises a three-way valve, a water inlet of the three-way valve is communicated with the water supply pipeline, a first water outlet of the three-way valve is communicated with a water inlet end of the second heat exchange coil, and a second water outlet of the three-way valve is communicated with a water inlet end of the first heat exchange coil.

9. The multi-split system as claimed in claim 6, wherein a water temperature sensor is provided in the water tank;

and/or a water level sensor is arranged in the water tank;

and/or a first hydraulic auxiliary heating piece is arranged in the water tank.

10. The multi-split system as claimed in any one of claims 7 to 9, wherein when a three-way valve communicating with the second heat exchange loop is provided at a water inlet end of the second heat exchange coil, the feed water pipe between the three-way valve and the second heat exchange loop is provided with a first water pump and a pipe heating device;

and/or the water return pipeline is provided with a water supplementing device and an automatic water supplementing valve connected with the water return pipeline and the water supplementing device.

11. The multi-split system as claimed in claim 2, wherein the first heat exchange loop includes an inlet section, a heat exchange section and an outlet section, the heat exchange section communicates the inlet section and the outlet section, the heat exchange section is for heat exchange with the second heat exchange loop;

first heat transfer circuit still including set up in the liquid pipe head of entering section with set up in the trachea joint of outflow section, liquid pipe head connects the entering section with the output of compressor, trachea joint connection the outflow section with the input of compressor.

12. The multi-split system as claimed in claim 11, wherein the intake section is provided with an electronic expansion valve;

and/or the inlet section and the outlet section are both provided with filters.

13. The multi-split system as claimed in claim 11, wherein the second heat exchange loop comprises a water inlet pipeline, a heat exchange pipeline and a water outlet pipeline, the heat exchange pipeline is communicated with the water inlet pipeline and the water outlet pipeline, the water inlet pipeline is communicated with the water return pipeline, and the water outlet pipeline is communicated with the water supply pipeline;

a water inlet valve is further arranged between the water inlet pipeline and the water return pipeline, and a water outlet valve is further arranged between the water outlet pipeline and the water supply pipeline.

14. The multi-split system as claimed in claim 13, wherein the water inlet line is sequentially provided with a water path filter, a water pressure gauge and a second water pump in a water inlet direction;

and/or the water outlet pipeline is sequentially provided with an expansion tank, a pressure release valve, a water flow switch and a second hydraulic auxiliary heating piece along the water outlet direction.

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