CN211650704U - Heat exchange system - Google Patents
Heat exchange system Download PDFInfo
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- CN211650704U CN211650704U CN202020004836.XU CN202020004836U CN211650704U CN 211650704 U CN211650704 U CN 211650704U CN 202020004836 U CN202020004836 U CN 202020004836U CN 211650704 U CN211650704 U CN 211650704U
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Abstract
The application discloses a heat exchange system, wherein the heat exchange system comprises an air conditioning unit, a fan coil unit and a floor heating pipeline assembly; the fan-coil unit comprises a first water inlet and a first water outlet, and the first water inlet is used for receiving chilled water of the air conditioning unit; the floor heating pipeline assembly comprises a second water inlet and a second water outlet, and the first water outlet is connected and communicated with the second water inlet. When the heat exchange system is in a refrigerating state, low-temperature chilled water provided by the air conditioning unit enters the fan coil unit for heat exchange in advance and then enters the floor heating pipeline assembly, so that the temperature of the indoor ground is further reduced, and the phenomena of condensation, mildew and the like on the floor are avoided due to the fact that the temperature of the chilled water in the floor heating pipeline assembly is relatively high; in the heating process, the air conditioning unit provides high-temperature chilled water, the high-temperature chilled water firstly passes through the fan coil to perform heat exchange, and then enters the floor heating pipeline assembly to further raise the indoor temperature.
Description
Technical Field
The application relates to the field of heat exchange, in particular to a heat exchange system.
Background
The heat exchange system comprises an air conditioning unit, a fan coil unit and a floor heating pipeline assembly, the floor heating pipeline assembly is laid underground in a room, and at least part of the air conditioning unit and the fan coil unit are arranged in the room. When heating is needed in winter, the liquid which can be heated in the floor heating pipeline assembly can be used as floor heating, so that the heating effect for rooms is achieved. When refrigeration is needed in summer, the air conditioning unit and the fan coil unit work, and the heat exchange of the refrigerant plays roles in cooling air and reducing the room temperature. During the refrigeration process, the air conditioning unit provides chilled water for cooling, which is at a temperature well below the room temperature, typically around 7 ℃, for reducing the room temperature and removing moisture. In current design, air conditioning unit is direct to be connected with floor heating pipe assembly, and the refrigerated water directly gets into in the floor heating pipe assembly to carry out the heat transfer in the underground in room, use as "ground cold", with the temperature that reduces ground, thereby play and reduce the room temperature, promote the effect that user experience felt.
However, as the temperature of the chilled water is low, when the chilled water directly enters the floor heating pipeline assembly, the phenomenon of condensation on the ground is easily caused, mildew is easily bred, and the floor, particularly the wood floor, is damaged.
SUMMERY OF THE UTILITY MODEL
The application provides a heat exchange system, it can avoid the floor to appear condensation, phenomenons such as going mildy as far as.
According to a first aspect of the application, a heat exchange system is provided, which comprises an air conditioning unit, a fan coil unit and a floor heating pipeline assembly;
the fan-coil unit comprises a first water inlet and a first water outlet, and the first water inlet is connected with the air conditioning unit and used for receiving the chilled water of the air conditioning unit; the floor heating pipeline assembly comprises a second water inlet and a second water outlet, and the first water outlet is connected and communicated with the second water inlet.
Furthermore, the heat exchange system comprises a water mixing pump, the water mixing pump comprises a liquid outlet and a liquid inlet, the liquid inlet is connected and communicated with a second water outlet of the floor heating pipeline assembly, and the liquid outlet is connected and communicated with a second water inlet of the floor heating pipeline assembly.
Furthermore, the heat exchange system also comprises a temperature detection device and a controller, wherein the temperature detection device and the water mixing pump are both electrically connected with the controller;
the temperature detection device is used for detecting the temperature of the second water inlet and sending a temperature signal of the second water inlet to the controller; the controller is used for receiving the temperature signal, sending an opening instruction by the controller when the temperature signal is less than or equal to the dew point temperature, and sending a closing instruction by the controller when the temperature signal is higher than the dew point temperature; when the water mixing pump receives the opening instruction, the water mixing pump is opened, and when the water mixing pump receives the closing instruction, the water mixing pump is closed.
Further, the dew point temperature is 17 ℃ or higher and 20 ℃ or lower.
Furthermore, the number of the fan coil units is multiple, and the fan coil units are connected in parallel;
the heat exchange system further comprises a first switch valve connected in parallel with the plurality of fan-coil units.
Furthermore, the number of the floor heating pipeline assemblies is multiple, and the floor heating pipeline assemblies are connected in parallel;
the heat exchange system further comprises a second switch valve, and the second switch valve is connected with the floor heating pipeline assemblies in parallel.
Furthermore, the number of the fan coil units and the number of the floor heating pipeline components are multiple, and the number of the fan coil units and the number of the floor heating pipeline components correspond to each other;
the fan coil unit is connected with the floor heating pipeline assembly to form a heat exchange unit, the heat exchange unit further comprises a third switch valve and a fourth switch valve, the third switch valve is arranged on a pipeline which is connected and communicated with the fan coil unit and the air conditioning unit, and the fourth switch valve is arranged on a pipeline which is connected and communicated with the fan coil unit and the floor heating pipeline assembly; the third switch valve and the fourth switch valve in one heat exchange unit are linked.
Furthermore, the number of the air conditioning units is multiple, and at least two air conditioning units are connected in series.
Further, the difference between the temperature of the chilled water in the first water inlet and the temperature of the chilled water in the first water outlet of the fan-coil unit is greater than or equal to 8 ℃ and less than or equal to 12 ℃.
Further, the temperature difference is 11 ℃.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
when the heat exchange system is in a refrigerating state, low-temperature chilled water provided by the air conditioning unit can enter the fan coil unit for heat exchange in advance, so that the chilled water for cooling and dehumidifying an indoor space is heated and then enters the floor heating pipeline assembly, the chilled water with higher temperature exchanges heat in the floor heating pipeline assembly, the temperature of the indoor ground is further reduced, and in the process, the temperature of the chilled water in the floor heating pipeline assembly is relatively higher, so that the phenomena of condensation, mildew and the like of the floor are avoided; in the heating process, high-temperature chilled water provided by the air conditioning unit is subjected to heat exchange through the fan coil unit to heat up an indoor space, and then enters the floor heating pipeline assembly to further raise the indoor temperature; by adopting the system, the heat exchange capability of the indoor tail end is fully utilized, the energy consumption of the system is reduced, the size of the waterway pipe is reduced, and the investment cost is saved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
Fig. 1 is a schematic structural diagram of a heat exchange system in an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a heat exchange system in another embodiment of the present application.
Description of the reference numerals
First air conditioning unit 110
Second air conditioning unit 120
First water inlet 210
Ground heating pipe assembly 300
Second water inlet 310
One-way valve 500
Third on/off valve 800
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that the terms "first," "second," and the like as used in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The embodiments of the present application will be described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.
The application relates to a heat exchange system 10, and the heat exchange system 10 can be applied to a heat exchanger, and the heat exchanger can be installed in a small-sized house and also can be installed in large-sized places such as a market, an office building and a teaching building so as to control indoor temperature.
As shown in fig. 1, the heat exchange system 10 includes an air conditioning unit 100, a fan-coil unit 200, and a floor heating duct assembly 300.
The fan-coil unit 200 includes a first water inlet 210 and a first water outlet 220, the first water inlet 210 is connected to the air conditioning unit 100, and the first water inlet 210 is used for receiving chilled water of the air conditioning unit 100. When the heat exchange system 10 is in the cooling mode, the air conditioning unit 100 provides chilled water, and the chilled water with a lower temperature enters the fan-coil unit 200 through the first water inlet 210 for heat exchange. The fan-coil unit 200 includes coil tubing and a fan, with chilled water entering the coil tubing in the fan-coil unit 200. The chilled water flowing out of the air conditioning unit 100 is low in temperature, and heat is transferred to indoor air through the pipe wall of the coil pipe by the chilled water, so that the effect of reducing indoor air dehumidification is achieved. In this process, the temperature of the indoor air decreases and the temperature of the chilled water increases. Meanwhile, since the temperature of the chilled water flowing out of the air conditioning unit 100 is low, the temperature of the outer wall of the coil pipe close to the first water inlet 210 is also low, and the condensation phenomenon is likely to occur. At this moment, the fan in the fan-coil unit 200 can be opened to accelerate the flow of air around the coil pipe, so that condensation volatilizes, the coil pipe is prevented from being covered by the condensation for a long time, the heat exchange efficiency is ensured, the phenomena of rusting, mildewing and the like of the coil pipe are avoided, and the service life of the coil pipe is prolonged.
The floor heating duct assembly 300 comprises a second water inlet 310 and a second water outlet 320, and the first water outlet 220 of the fan-coil unit 200 is connected and communicated with the second water inlet 310 of the floor heating duct assembly 300.
In the above arrangement, the first water outlet 220 of the fan coil unit 200 is communicated with the second water inlet 310 of the floor heating pipeline assembly 300, so that when the heat exchange system 10 is in a refrigerating state, chilled water flowing out of the air conditioning unit 100 and having a lower temperature can enter the fan coil unit 200 in advance for heat exchange, indoor air is further cooled, the temperature of the chilled water rises and then enters the floor heating pipeline assembly 300, and the chilled water having a relatively higher temperature exchanges heat in the floor heating pipeline assembly 300 to reduce the temperature of indoor ground. In the process, the temperature of the chilled water which enters the floor heating pipeline assembly 300 through the fan-coil unit 200 is relatively high, so that the phenomena of condensation, mildew and the like of the floor, particularly a wooden floor, are avoided, and the service life of the floor heating pipeline assembly 300 in the heat exchange system 10 is ensured. Meanwhile, the ground temperature can be reduced, and the use feeling of a user is improved.
It should be noted that the floor heating pipe assembly 300 is a pipe assembly located below the floor of the room and used for heat exchange by users. When the heat exchange system 10 is in the cooling mode, low-temperature chilled water may flow through the floor heating pipe assembly 300, and the floor heating pipe assembly 300 exchanges heat with the floor and air in a space below the floor to reduce the temperature of the floor. In other words, floor heating duct assembly 300 functions as "ground cold" when heat exchange system 10 is in the cooling mode. When the heat exchange system is in the heating mode 10, the air conditioning unit 100 provides high-temperature chilled water, the high-temperature chilled water is subjected to heat exchange through the fan-coil unit 200 to heat an indoor space, and then enters the floor heating pipe assembly 300 to further raise the temperature of the floor and the indoor temperature. In other words, when heat exchange system 10 is in the heating mode, floor heating duct assembly 300 is used as a "floor heater". By adopting the system, the heat exchange capability of the indoor tail end is fully utilized, the energy consumption of the system is reduced, the size of the waterway pipe is reduced, and the investment cost is saved.
As shown in fig. 2, in some embodiments, the heat exchange system 10 further includes a water mixing pump 400, the water mixing pump 400 includes a liquid outlet 410 and a liquid inlet 420, the liquid inlet 420 is connected to and communicated with the second water outlet 320 of the floor heating pipe assembly 300, and the liquid outlet 410 is connected to and communicated with the second water inlet 310 of the floor heating pipe assembly 300. If the heat exchange system 10 is in a refrigeration state and the temperature of the chilled water flowing out of the fan coil unit 200 and entering the floor heating pipe assembly 300 is still lower than the dew point temperature, the phenomena of condensation, mildew and the like on the floor may still occur. At this time, the mixing pump 400 may be turned on, and the mixing pump 400 may enable the chilled water flowing out of the second water outlet 320 of the floor heating pipe assembly 300 to enter the floor heating pipe assembly 300 again through the second water inlet 310. Because the refrigerated water that flows out from the second delivery port 320 of ground heating pipe assembly 300 is higher, can flow out and directly get into the refrigerated water of ground heating pipe assembly 300 with fan coil unit 200 and carry out the neutralization to promote the temperature that gets into the refrigerated water of ground heating pipe assembly 300, make it be higher than dew point temperature, thereby avoid phenomenons such as condensation, moldy appear in the floor.
It should be noted that the dew point temperature referred to herein is a temperature at which the chilled water located in the floor heating pipe assembly 300 cools and condenses air outside the floor heating pipe assembly 300 to the outer wall of the floor heating pipe assembly 300. The dew point temperature is usually 17 ℃ or higher and 20 ℃ or lower. In this embodiment, the dew point temperature is 18 ℃, and in other embodiments, the value of the dew point temperature can be adjusted according to factors such as actual environment. The dew point temperature is a specific value within this range.
Further, the heat exchanging system 10 further includes a temperature detecting device (not shown) and a controller (not shown), and both the temperature detecting device and the water mixing pump 400 are electrically connected to the controller. The temperature detecting means is used for detecting the temperature of the second water inlet 310 and sending a temperature signal of the second water inlet 310 to the controller. The controller is used for receiving the temperature signal, sending an opening instruction when the temperature signal is less than or equal to the dew point temperature, and sending a closing instruction when the temperature signal is higher than the dew point temperature; when the mixer pump 400 receives an open command, the mixer pump 400 is opened, and when the mixer pump 400 receives a close command, the mixer pump 400 is closed.
In the above arrangement, the temperature of the chilled water flowing out from the fan coil unit 200 and entering the floor heating pipe assembly 300 is detected by the temperature detection device, and the water mixing pump 400 is judged to be started or not according to the temperature of the chilled water by the setting controller, namely, whether the temperature of the chilled water flowing out from the floor heating pipe assembly 300 needs to be changed to the temperature of the chilled water flowing into the floor heating pipe assembly 300 according to the temperature of the chilled water. Through the above arrangement, the opening or closing of the water mixing pump 400 can be accurately controlled, the time and the frequency for opening the water mixing pump 400 are reduced on the premise that condensation is prevented from occurring on the outer wall of the floor heating pipeline assembly 300, and energy consumption is reduced.
Further, the heat exchange system 10 further includes a check valve 500, and both ends of the check valve 500 are respectively connected to the liquid outlet 410 of the water mixing pump 400 and the second water inlet 310 of the underground pipe assembly. When the liquid flows from the liquid outlet 410 of the water mixing pump 400 to the second water inlet 310, the check valve 500 is opened; the check valve 500 is closed when the liquid flows from the second water inlet 310 and/or the first water outlet 220 to the liquid outlet 410 of the mixing pump 400. Through the above arrangement, the condensate flowing out of the fan coil unit 200 is prevented from entering the water mixing pump 400 through the liquid outlet 410 of the water mixing pump 400 and causing damage to the water mixing pump 400, so that the safety of the water mixing pump 400 and the stability of the heat exchange system 10 in operation are ensured.
Further, as shown in fig. 1 and 2, the number of the fan coil units 200 is plural, and the plural fan coil units 200 are connected in parallel. In this embodiment, the number of the fan coil units 200 is three, and the three fan coil units 200 are connected in parallel. Multiple fan coil units 200 may be installed in different rooms to provide temperature control for the different rooms. Of course, at least two fan coil units 200 may be installed in the same room to achieve efficient temperature control in the same room.
The heat exchange system 10 further includes a first on-off valve 600, the first on-off valve 600 being connected in parallel with the plurality of fan-coil units 200. When only one fan coil unit 200 in the heat exchange system 10 is turned on, the pressure drop between the first water inlet 210 and the first water outlet 220 is large, resulting in insufficient flow of chilled water. At this time, the first switch valve 600 can be controlled to be opened, the pressure drop at two ends of the fan-coil unit 200 is reduced, and chilled water can enter the floor heating pipeline assembly 300 through the first switch valve 600 and the fan-coil unit 200. In this process, the temperature of the chilled water entering the floor heating pipe assembly 300 through the second water inlet 310 is low, and the mixing pump 400 may be turned on to raise the temperature of the chilled water entering the floor heating pipe assembly 300. The temperature of the chilled water in the floor heating pipeline assembly 300 is higher than the dew point temperature, and the phenomena of condensation, mildew and the like on the outer wall of the floor are avoided.
The number of the floor heating pipe assemblies 300 is multiple, and the floor heating pipe assemblies 300 are connected in parallel. In this embodiment, the number of the floor heating pipe assemblies 300 is three, and the three floor heating pipe assemblies 300 are connected in parallel. A plurality of floor heating duct assemblies 300 may be installed in different rooms to control the temperature of the different rooms. Of course, at least two floor heating pipe assemblies 300 can be installed in the same room, so that the temperature of the same room can be efficiently controlled.
Further, the heat exchange system 10 further includes a second switch valve 700, and the second switch valve 700 is connected in parallel with the plurality of floor heating pipe assemblies 300. When one floor heating pipe assembly 300 is opened, the pressure drop between the second water inlet 310 and the second water outlet 320 is too large, so that the water flow in the floor heating pipe assembly 300 is too small, and heat exchange by the floor heating pipe assembly 300 is not facilitated. At this time, the second switching valve 700 may be opened, the pressure drop between the second water inlet 310 and the second water outlet 320 of the floor heating pipe assembly 300 may be reduced, the flow rate of the chilled water flowing through the floor heating pipe assembly 300 may be increased, and the heat exchange efficiency may be improved.
In this embodiment, the number of fan-coil units 200 corresponds to the number of floor heating duct assemblies 300. The heat exchange unit further comprises a third switch valve 800 and a fourth switch valve 900, wherein the third switch valve 800 is arranged on a pipeline which is connected and communicated with the fan coil unit 200 and the air conditioning unit 100 so as to control the fan coil unit 200 to be opened or closed; the fourth switch valve 900 is disposed on a pipeline connected and communicated with the fan coil unit 200 and the floor heating pipeline assembly 300 to control the opening or closing of the floor heating pipeline assembly 300. A fan coil unit 200 and a floor heating pipeline assembly 300 are connected to form a heat exchange unit, and a third switch valve 800 and a fourth switch valve 900 in the heat exchange unit are linked. In other words, when the third on/off valve 800 on the fan-coil unit 200 is opened, the fourth on/off valve 900 on the floor heating duct assembly 300 in the heat exchange unit where the fan-coil unit 200 is located is correspondingly opened. When the third on-off valve 800 on the fan-coil unit 200 is closed, the fourth on-off valve 900 on the floor heating pipe assembly 300 in the heat exchange unit where the fan-coil unit 200 is located is correspondingly closed. In the actual use process, a heat exchange unit is usually installed in one room, namely, a fan coil unit 200 and a floor heating pipeline assembly 300 are installed, through the arrangement, the third switch valve 800 and the fourth switch valve 900 in one heat exchange unit are linked, so that the fan coil unit 200 and the floor heating pipeline assembly 300 in one room can better refrigerate or heat the room, and the heat exchange efficiency is improved. Of course, more than two heat exchange units may be provided in a single room.
Further, the number of the air conditioning units 100 is plural, and the plural air conditioning units 100 are connected in series. In the prior art, only one air conditioning unit 100 is provided in the heat exchange system 10, or a plurality of air conditioning units 100 are provided in parallel. The inlet water temperature to the first inlet 210 of the fan coil unit 200 is desirably located in a lower range, i.e., the outlet water temperature of each air conditioning unit 100 is desirably maintained in a lower range. Generally, the inlet temperature of the air conditioning unit 100 is about 22 ℃, the outlet temperature of the air conditioning unit 100 is about 7 ℃, and the smaller the outlet temperature of the air conditioning unit 100 is, the smaller the energy efficiency of the air conditioning unit 100 is. However, in this embodiment, the number of the air conditioning units 100 is two, two air conditioning units 100 are connected in series, the air conditioning unit 100 connected to the fan coil unit 200 is defined as the first air conditioning unit 110, and the other air conditioning unit 100 is defined as the second air conditioning unit 120. Then, it is only necessary to ensure that the outlet temperature of the first air conditioning unit 110 is maintained in a low range, approximately around 7 ℃. At this time, the outlet temperature of the second air conditioning unit 120 can be maintained in a higher range, which is approximately equal to or higher than 13 ℃, and is equal to or lower than 15 ℃, so that the outlet temperature of the first air conditioning unit 110 can meet the requirement. Through the arrangement, the outlet liquid temperature of the second air conditioning unit 120 is high, and the energy efficiency is higher. Of course, in other embodiments, the number of the air conditioning units 100 may also be three, and at least two air conditioning units 100 are connected in series.
Further, in the above embodiment, the fan-coil unit 200 is a large temperature difference coil, and the difference between the temperature of the chilled water flowing into the fan-coil unit 200 from the first water inlet 210 and the temperature of the chilled water flowing out of the fan-coil unit 200 from the first water outlet 220 is greater than or equal to 8 ℃, and is less than or equal to 12 ℃, so that the temperature of the chilled water entering the floor heating pipe assembly 300 is greater than the dew-point temperature, and meanwhile, the flow rate of the chilled water can be appropriately reduced, so that the power consumption of the water pump 101 connecting the air-conditioning unit 100 and the fan-coil unit 200 is reduced. The difference of the temperature of the inlet and outlet liquid of the fan-coil unit with the existing design is more than 5 ℃, and the temperature difference is 11 ℃ in the application, so that the temperature of the frozen water entering the floor heating pipeline component 300 is higher than the dew point temperature. At this time, the flow rate of the chilled water can be reduced by 60% compared to the flow rate of the chilled water in the heat exchange system of the conventional design, and the power consumption of the water pump 101 is greatly reduced.
Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being covered by the following claims.
Claims (10)
1. A heat exchange system is characterized by comprising an air conditioning unit, a fan coil unit and a floor heating pipeline assembly;
the fan-coil unit comprises a first water inlet and a first water outlet, and the first water inlet is connected with the air conditioning unit and used for receiving chilled water of the air conditioning unit; the floor heating pipeline assembly comprises a second water inlet and a second water outlet, and the first water outlet is connected and communicated with the second water inlet.
2. The heat exchange system of claim 1, wherein the heat exchange system comprises a water mixing pump, the water mixing pump comprises a liquid inlet and a liquid outlet, the liquid inlet is connected to and in communication with the second water outlet of the floor heating duct assembly, and the liquid outlet is connected to and in communication with the second water inlet of the floor heating duct assembly.
3. The heat exchange system of claim 2, further comprising a temperature sensing device and a controller, wherein the temperature sensing device and the mixing pump are both electrically connected to the controller;
the temperature detection device is used for detecting the temperature of the second water inlet and sending a temperature signal of the second water inlet to the controller; the controller is used for receiving the temperature signal, sending an opening instruction when the temperature signal is less than or equal to the dew point temperature, and sending a closing instruction when the temperature signal is greater than the dew point temperature; when the water mixing pump receives the opening instruction, the water mixing pump is opened, and when the water mixing pump receives the closing instruction, the water mixing pump is closed.
4. The heat exchange system of claim 3, wherein the dew point temperature is 17 ℃ or greater and 20 ℃ or less.
5. The heat exchange system of claim 1, wherein there are a plurality of fan-coil units, the plurality of fan-coil units being connected in parallel;
the heat exchange system further comprises a first switch valve connected in parallel with the plurality of fan-coil units.
6. The heat exchange system of claim 1, wherein the number of the floor heating pipe assemblies is multiple, and the floor heating pipe assemblies are connected in parallel;
the heat exchange system further comprises a second switch valve, and the second switch valve is connected with the floor heating pipeline assemblies in parallel.
7. The heat exchange system of claim 6, wherein the number of the fan-coil units and the number of the floor heating duct assemblies are both multiple and correspond to each other;
the fan coil unit is connected with the floor heating pipeline assembly to form a heat exchange unit, the heat exchange unit further comprises a third switch valve and a fourth switch valve, the third switch valve is arranged on a pipeline which is connected and communicated with the fan coil unit and the air conditioning unit, and the fourth switch valve is arranged on a pipeline which is connected and communicated with the fan coil unit and the floor heating pipeline assembly; the third switch valve and the fourth switch valve in one heat exchange unit are linked.
8. The heat exchange system according to any one of claims 1 to 7, wherein the number of the air conditioning units is plural, and at least two air conditioning units are connected in series.
9. The heat exchange system of any one of claims 1-7, wherein the difference between the temperature of chilled water flowing into the fan-coil unit from the first water inlet and the temperature of chilled water flowing out of the fan-coil unit from the first water outlet is greater than or equal to 8 ℃ and less than or equal to 12 ℃.
10. The heat exchange system of claim 9, wherein the temperature of chilled water flowing into the fan-coil unit from the first water inlet differs from the temperature of chilled water flowing out of the fan-coil unit from the first water outlet by 11 ℃.
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| CN202020004836.XU CN211650704U (en) | 2020-01-02 | 2020-01-02 | Heat exchange system |
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| CN202020004836.XU CN211650704U (en) | 2020-01-02 | 2020-01-02 | Heat exchange system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984759A (en) * | 2021-03-16 | 2021-06-18 | 珠海格力智能装备有限公司 | Water supply structure and air conditioner with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984759A (en) * | 2021-03-16 | 2021-06-18 | 珠海格力智能装备有限公司 | Water supply structure and air conditioner with same |
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