CN214371045U - Double-water-temperature water outlet variable-frequency air source heat pump system - Google Patents
Double-water-temperature water outlet variable-frequency air source heat pump system Download PDFInfo
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- CN214371045U CN214371045U CN202023283860.0U CN202023283860U CN214371045U CN 214371045 U CN214371045 U CN 214371045U CN 202023283860 U CN202023283860 U CN 202023283860U CN 214371045 U CN214371045 U CN 214371045U
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Abstract
The utility model relates to a double-water-temperature water outlet variable frequency air source heat pump system, which comprises an outdoor unit, a first refrigerant-water heat exchanger unit and a second refrigerant-water heat exchanger unit, wherein the outdoor unit comprises a compressor and a four-way reversing valve and a wind side heat exchanger which are sequentially connected with the compressor; the second refrigerant-water heat exchanger unit comprises a forward refrigerant side heat exchanger and a reverse temperature-adjusting refrigerant heat exchanger connected with the forward refrigerant side heat exchanger in series in a water path, wherein the reverse temperature-adjusting refrigerant heat exchanger is respectively connected with refrigerant pipelines at two ends of the wind side heat exchanger through refrigerant pipelines, one ends of the forward refrigerant side heat exchanger and the refrigerant side heat exchanger of the first refrigerant-water heat exchanger unit are respectively connected with one end refrigerant pipeline of the wind side heat exchanger through refrigerant pipelines after passing through respective throttling devices, and the other ends of the forward refrigerant side heat exchanger and the refrigerant side heat exchanger of the first refrigerant-water heat exchanger unit are respectively connected with the compressor through four-way reversing valves through refrigerant pipelines. The utility model discloses a one set of host system obtains the hot and cold water of two tunnel different temperatures in the user side, satisfies different application demands.
Description
Technical Field
The utility model relates to an air conditioning system field especially relates to a frequency conversion air source heat pump system of two water temperature play water.
Background
At present, the variable-frequency air source heat pump units on the market generally adopt a technical mode of only one-way single-water-temperature water outlet, in the practical application process, two kinds of air-conditioning chilled water or hot water with different temperatures are often needed at the same time, and for example, in a radiation cooling system adopting a temperature and humidity independent control technology, on one hand, low-temperature chilled water (7 ℃) is needed to solve the problem of overhigh air humidity of the system, and the radiation surface is prevented from dewing; on the other hand, high-temperature cooling water (16-25 ℃) is needed to supply the tail end radiation system to cool the indoor space. The existing technical scheme can only be solved by two sets of systems, namely one set of unit capable of generating high-temperature chilled water and the other set of unit capable of generating low-temperature chilled water. Or after the unit discharges water at low water temperature (such as 7 ℃), a part of discharged water is heated and mixed with high-temperature water in other modes to generate high-temperature cooling water (16-25 ℃) required by the system, but the modes can increase the energy consumption of the system.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two water temperature goes out frequency conversion air source heat pump system of water obtains the hot and cold water of two way different temperatures in the use side through one set of host system, satisfies different application demands.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a double-water-temperature water outlet variable-frequency air source heat pump system comprises an outdoor unit, a first refrigerant-water heat exchanger unit and a second refrigerant-water heat exchanger unit, wherein the outdoor unit comprises a compressor, a four-way reversing valve and an air-side heat exchanger, wherein the four-way reversing valve and the air-side heat exchanger are sequentially connected with the compressor; the second refrigerant-water heat exchanger unit comprises a forward refrigerant side heat exchanger and a reverse temperature-adjusting refrigerant heat exchanger connected with the forward refrigerant-water heat exchanger in series in a water path, wherein the reverse temperature-adjusting refrigerant heat exchanger of the second refrigerant-water heat exchanger unit is respectively connected with refrigerant pipelines at two ends of the wind side heat exchanger through refrigerant pipelines, the refrigerant side heat exchangers of the forward refrigerant side heat exchanger and the first refrigerant-water heat exchanger unit are respectively connected with one end refrigerant pipeline of the wind side heat exchanger through refrigerant pipelines after passing through respective throttling devices, the other ends of the refrigerant side heat exchangers of the forward refrigerant side heat exchanger and the first refrigerant-water heat exchanger unit are respectively connected with a compressor through the refrigerant pipelines through a four-way reversing valve, and the water side heat exchangers of the first refrigerant-water heat exchanger unit and the second refrigerant-water heat exchanger unit are respectively connected with an air conditioner water supply system.
Furthermore, a throttling device is arranged at one end of the forward refrigerant heat exchanger connected with the air side heat exchanger, an evaporation pressure adjusting device and a one-way valve connected with the evaporation pressure adjusting device in parallel are arranged at the other end of the forward refrigerant heat exchanger, and the evaporation pressure adjusting device is used for adjusting the refrigerant evaporation pressure of the forward refrigerant heat exchanger.
Furthermore, a refrigerant pipeline of the reverse temperature-adjusting refrigerant heat exchanger is provided with a refrigerant quantity electromagnetic valve for controlling the refrigerant quantity flowing into the reverse temperature-adjusting refrigerant heat exchanger; and a throttling device is arranged on a refrigerant pipeline connected with the reverse temperature-adjusting refrigerant heat exchanger and the air side heat exchanger.
Furthermore, a first port of the four-way reversing valve is connected with an exhaust port of the compressor, a second port of the four-way reversing valve is connected with the air-side heat exchanger, a third port of the four-way reversing valve is connected with an air suction port of the compressor, and a fourth port of the four-way reversing valve is connected with the main heat exchanger unit and the forward refrigerant-side heat exchanger.
Furthermore, the first refrigerant-water heat exchanger unit is used for providing cooling water or hot water with set outlet water temperature, and the second refrigerant-water heat exchanger unit is used for providing cooling water or hot water with outlet water temperature different from that of the first refrigerant-water heat exchanger unit.
Compared with the prior art, the beneficial effects of the utility model include:
the utility model discloses an adopt two sets of equipment of first refrigerant-water heat exchanger unit, second refrigerant-water heat exchanger unit at the output, one of them set disposes evaporating pressure adjusting device and reverse temperature regulation refrigerant heat exchanger, can be when first refrigerant-water heat exchanger unit carries out the refrigeration operation, provide the high temperature cold water that is higher than the cold water temperature of first refrigerant-water heat exchanger unit output for the circulating water of second refrigerant-water heat exchanger unit, when the temperature of output needs to improve, reverse temperature regulation refrigerant heat exchanger can provide abundant heat source, produce stable controllable high temperature cooling water and hot water (16 ~ 55 ℃), and the heat source that is used for the heating is the recovery heat that has utilized system's waste heat;
when the system is in a heating operation mode, the reverse temperature-adjusting refrigerant heat exchanger cools the air-conditioning circulating water through the second refrigerant-water heat exchanger, and the cold source for cooling is waste cold recovery of the system without additional energy consumption. Therefore, the system can provide a stable and controllable two-way water temperature output water source with the temperature within the range of 7-55 ℃, and special requirements are met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention. Wherein:
fig. 1 is a schematic structural diagram of a double-water-temperature water outlet variable-frequency air source heat pump system according to an embodiment of the present invention;
in the figure: 1. the air conditioner comprises an outdoor unit, a compressor, a four-way reversing valve, a compressor, an air side heat exchanger throttling device and an air side heat exchanger throttling device, wherein the outdoor unit comprises 101, 102, the four-way reversing valve, 103, 104 and the air side heat exchanger throttling device;
2. the system comprises a first refrigerant-water heat exchanger unit, a refrigerant side heat exchanger 201, a water side heat exchanger 202, a first refrigerant-water heat exchanger unit, a first refrigerant-water heat exchanger throttling device 203 and a first refrigerant-water heat exchanger throttling device;
3. a second refrigerant-water heat exchanger unit, a forward refrigerant side heat exchanger 301, a reverse temperature-adjusting refrigerant heat exchanger 302, a reverse temperature-adjusting refrigerant 303, a second refrigerant-water heat exchanger unit water side heat exchanger 304, a second refrigerant-water heat exchanger throttling device 305, a one-way valve 306, an evaporation pressure adjusting device 307, a reverse temperature-adjusting side throttling device 308, and an electromagnetic valve.
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 some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
As shown in fig. 1, the utility model discloses a two frequency conversion air source heat pump system that water temperature goes out, including off-premises station unit 1, first refrigerant-water heat exchanger unit 2 and second refrigerant-water heat exchanger unit 3, first refrigerant-water heat exchanger unit 2 is used for providing cooling water or the hot water of setting for leaving water temperature, and second refrigerant-water heat exchanger unit 3 is used for providing cooling water or the hot water that is different from first refrigerant-water heat exchanger unit 2 leaving water temperature. When the heating mode is operated, the circulating water flowing through the second refrigerant-water heat exchange unit 3 is cooled to reach the temperature required to be controlled.
Specifically, the outdoor unit 1 includes a compressor 101, a four-way reversing valve 102 and a wind-side heat exchanger 103 sequentially connected to the compressor 101, and the second refrigerant-water heat exchanger unit 2 includes a forward refrigerant-side heat exchanger 301 and a reverse temperature-adjusting refrigerant heat exchanger 302 connected in series thereto, wherein a first port of the four-way reversing valve 102 is connected to an exhaust port of the compressor 101, a second port is connected to the wind-side heat exchanger 104, a third port is connected to a suction port of the compressor 101, and a fourth port is connected to the forward refrigerant-side heat exchanger 301 of the first refrigerant-water heat exchanger unit 2 and the second refrigerant-water heat exchanger unit 3. The reverse temperature-adjusting refrigerant heat exchanger 302 is respectively connected with refrigerant pipelines at two ends of the air-side heat exchanger 103 through refrigerant pipelines, the forward refrigerant-side heat exchanger 301 and the refrigerant-side heat exchanger 201 of the first refrigerant-water heat exchanger unit 2 are respectively connected with the refrigerant pipeline at one end of the air-side heat exchanger 103 through refrigerant pipelines after passing through respective throttling devices, the forward refrigerant-side heat exchanger 301 and the other end of the refrigerant-side heat exchanger 201 of the first refrigerant-water heat exchanger unit 2 are both connected with the compressor 101 through the refrigerant pipeline and the four-way reversing valve 102, and the water-side heat exchangers of the first refrigerant-water heat exchanger unit 2 and the second refrigerant-water heat exchanger unit 3 are respectively connected with an air-conditioning water supply system.
The throttling device is arranged at one end of the forward refrigerant heat exchanger 301 connected with the air side heat exchanger 103, the evaporation pressure adjusting device 306 and the one-way valve 305 connected with the evaporation pressure adjusting device 306 in parallel are arranged at the other end of the forward refrigerant heat exchanger 301, the evaporation pressure adjusting device 306 is used for adjusting the refrigerant evaporation pressure of the forward refrigerant side heat exchanger 301, and when the refrigeration mode operates, the evaporation pressure is correspondingly set, so that the refrigeration mode can generate stable high-temperature cold water, and the energy efficiency ratio of the unit is improved.
The refrigerant pipeline of the reverse temperature-adjusting refrigerant heat exchanger 302 is provided with a solenoid valve 308 for controlling the amount of refrigerant flowing into the reverse temperature-adjusting refrigerant heat exchanger 302, when the second refrigerant-water heat exchanger unit 3 needs higher-temperature water outlet, the solenoid valve 308 is opened, and high-temperature and high-pressure gaseous refrigerant output from the exhaust port of the compressor 101 flows into the reverse temperature-adjusting refrigerant heat exchanger 302 to be condensed and release heat, so that a heat source is provided for the reverse temperature-adjusting refrigerant heat exchanger 302; a throttling device is arranged on a refrigerant pipeline connecting the reverse temperature-adjusting refrigerant heat exchanger 302 and the air side heat exchanger 103.
As an embodiment of the present invention, the operation flow of the variable frequency air source heat pump system in the cooling mode is as follows.
High-temperature and high-pressure gaseous refrigerant discharged from an exhaust port of the compressor 101 enters from a first port A of the four-way reversing valve 102, flows out from a second port B, and is divided into two paths after reaching a point E, wherein one path of the refrigerant is subjected to heat exchange with outdoor air through the wind-side heat exchanger 103, condensed and heat-released refrigerant is changed into a high-temperature and high-pressure liquid state and flows to the point F, the other path of the refrigerant passes through the electromagnetic valve 308 from the point E, then flows through the reverse temperature-adjusting refrigerant heat exchanger of the second refrigerant-water heat exchange unit 3, and exchanges heat with tail-end air-conditioning circulating water of the water-side heat exchanger 303 of the second refrigerant-water heat exchanger unit, so that the water temperature can be increased to a required temperature, and the condensed and heat-released high-temperature and high-pressure liquid refrigerant flows through the point F;
the high-temperature and high-pressure liquid refrigerant output by the point F flows into the refrigerant side heat exchanger 201 of the first refrigerant-water heat exchanger unit 2 and the forward refrigerant side heat exchanger 301 of the second refrigerant-water heat exchanger unit 3 through the first refrigerant-water heat exchanger throttling device 203 and the second refrigerant-water heat exchanger throttling device 304 respectively to evaporate and absorb heat, air-conditioning circulating water of the first refrigerant-water heat exchanger unit 2 and the second refrigerant-water heat exchanger unit 3 is cooled, and the lowest outlet water temperature of the first refrigerant-water heat exchanger unit 2 can reach 5-7 ℃.
The utility model discloses a there is evaporating pressure adjusting device 306 on the refrigerant pipeline of forward refrigerant side heat exchanger 301, changes the refrigerant evaporating pressure of forward refrigerant side heat exchanger 301 through adjusting its evaporating pressure, makes it change and provides the cold volume of forward refrigerant side heat exchanger air conditioner circulating water, reaches the effect that can provide the air conditioner circulating water temperature who is different from the outflow of first refrigerant-water heat exchanger unit 2, and its temperature can be maintained 16 ~ 25 ℃.
When the second refrigerant-water heat exchanger unit 3 needs a higher outlet water temperature, the solenoid valve 308 on the refrigerant pipeline of the reverse temperature-adjusting refrigerant heat exchanger 302 is opened, and the high-temperature and high-pressure gaseous refrigerant output from the exhaust port of the compressor 101 flows into the reverse temperature-adjusting refrigerant heat exchanger 302 to condense and release heat, so that a heat source is provided for the heat source, and the outlet water temperature can reach 20-55 ℃.
The refrigerant evaporated and absorbing heat by the first refrigerant-water heat exchanger unit 2 and the second refrigerant-water heat exchanger unit 3 joins at point G, passes through the fourth port D of the four-way selector valve 102, and flows out of the third port C to the suction port of the compressor 101, thereby forming a cycle of refrigeration operation.
As another embodiment of the present invention, the operation flow of the variable frequency air source heat pump system in the heating mode is as follows.
The high-temperature high-pressure gaseous refrigerant flowing out of the exhaust port of the compressor 101 enters from the first port a of the four-way reversing valve 102, flows out of the fourth port D, and then reaches the point G, and is divided into two paths.
One path of the heat enters the forward refrigerant side heat exchanger 301 of the second refrigerant-water heat exchanger unit 3 through the check valve 305 for condensation and heat release, and the heat is transferred to the air conditioner auxiliary water supply system flowing through the second refrigerant-water heat exchanger unit 3 to reach the required temperature; the other path of refrigerant enters the first refrigerant-water heat exchanger unit 2 to be condensed and release heat, and the heat is transferred to a main water supply system of the air conditioner flowing through the second refrigerant-water heat exchanger unit 3 to enable the main water supply system to reach the required temperature.
The two paths of condensed and heat-released high-temperature and high-pressure liquid refrigerants are converged at a point H and then are divided into two paths through a point F, when the second refrigerant-water heat exchanger unit 3 needs water with a lower temperature, one path of the refrigerants are throttled by the second refrigerant-water heat exchanger throttling device 304 and then enter the reverse temperature-adjusting refrigerant heat exchanger 302 of the second refrigerant-water heat exchanger unit 3 to be evaporated and absorb heat, the temperature of the outlet water flowing through the heat exchanger is reduced, and the heat-absorbed refrigerants return to the air suction port of the compressor 101 after passing through a point E and the second port B and the third port C of the four-way reversing valve 102; the other path of refrigerant enters the air-side heat exchanger 103 for evaporation and heat absorption after being throttled by the air-side heat exchanger throttling device 104, absorbs heat from the air flowing through the air-side heat exchanger 103, passes through the second port B and the third port C of the four-way reversing valve 102, and returns to the air suction port of the compressor 101, so that the cycle of heating operation is formed.
The utility model discloses a two water temperature goes out frequency conversion air source heat pump system of water adopts two sets of devices of first refrigerant-water heat exchanger unit, second refrigerant-water heat exchanger unit at the output, one of them set disposes evaporating pressure adjusting device, another set disposes reverse temperature regulation refrigerant heat exchanger, can refrigerate at first refrigerant-water heat exchanger unit, provide the heating heat source for the circulating water of second refrigerant-water heat exchanger unit, when the temperature of output needs to improve, abundant heat source can produce stable controllable high temperature cooling water and hot water (16 ~ 55 ℃) under the refrigeration working condition, and the heat source that is used for the heating is the recovery heat that has utilized system's waste heat; when the system is in a heating operation mode, the reverse temperature-adjusting refrigerant heat exchanger cools the air-conditioning circulating water through the second refrigerant-water heat exchanger, and the cold source for cooling is waste cold recovery of the system without additional energy consumption. Therefore, the system can provide a stable and controllable two-way water temperature output water source with the temperature within the range of 7-55 ℃, and special requirements are met.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The variable-frequency air source heat pump system capable of discharging water at double water temperatures is characterized by comprising an outdoor unit, a first refrigerant-water heat exchanger unit and a second refrigerant-water heat exchanger unit, wherein the outdoor unit comprises a compressor, a four-way reversing valve and an air-side heat exchanger, wherein the four-way reversing valve and the air-side heat exchanger are sequentially connected with the compressor; the second refrigerant-water heat exchanger unit comprises a forward refrigerant side heat exchanger and a reverse temperature-adjusting refrigerant heat exchanger connected with the forward refrigerant-water heat exchanger in series in a water path, wherein the reverse temperature-adjusting refrigerant heat exchanger of the second refrigerant-water heat exchanger unit is respectively connected with refrigerant pipelines at two ends of the wind side heat exchanger through refrigerant pipelines, the refrigerant side heat exchangers of the forward refrigerant side heat exchanger and the first refrigerant-water heat exchanger unit are respectively connected with one end refrigerant pipeline of the wind side heat exchanger through refrigerant pipelines after passing through respective throttling devices, the other ends of the refrigerant side heat exchangers of the forward refrigerant side heat exchanger and the first refrigerant-water heat exchanger unit are respectively connected with a compressor through the refrigerant pipelines through a four-way reversing valve, and the water side heat exchangers of the first refrigerant-water heat exchanger unit and the second refrigerant-water heat exchanger unit are respectively connected with an air conditioner water supply system.
2. The variable-frequency air source heat pump system according to claim 1, wherein a throttling device is arranged at one end of the forward refrigerant heat exchanger connected with the wind side heat exchanger, an evaporation pressure adjusting device and a one-way valve connected with the evaporation pressure adjusting device in parallel are arranged at the other end of the forward refrigerant heat exchanger, and the evaporation pressure adjusting device is used for adjusting the refrigerant evaporation pressure of the forward refrigerant heat exchanger.
3. The variable-frequency air source heat pump system according to claim 1, wherein a refrigerant pipeline of the reverse temperature-adjusting refrigerant heat exchanger is provided with a refrigerant quantity electromagnetic valve for controlling the amount of refrigerant flowing into the reverse temperature-adjusting refrigerant heat exchanger; and a throttling device is arranged on a refrigerant pipeline connected with the reverse temperature-adjusting refrigerant heat exchanger and the air side heat exchanger.
4. The variable-frequency air source heat pump system according to claim 1, wherein a first port of the four-way reversing valve is connected with an exhaust port of the compressor, a second port of the four-way reversing valve is connected with the air-side heat exchanger, a third port of the four-way reversing valve is connected with an air suction port of the compressor, and a fourth port of the four-way reversing valve is connected with the first refrigerant-water heat exchanger unit and the forward refrigerant-side heat exchanger of the second refrigerant-water heat exchanger unit.
5. The variable-frequency air source heat pump system according to any one of claims 1 to 4, wherein the first refrigerant-water heat exchanger unit is configured to provide cooling water or hot water with a set outlet water temperature, and the second refrigerant-water heat exchanger unit is configured to provide cooling water or hot water with a different outlet water temperature from the first refrigerant-water heat exchanger unit; when the heating mode operates, the circulating water flowing through the second refrigerant-water heat exchange unit is cooled to reach the temperature required to be controlled.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023283860.0U CN214371045U (en) | 2020-12-30 | 2020-12-30 | Double-water-temperature water outlet variable-frequency air source heat pump system |
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| CN202023283860.0U CN214371045U (en) | 2020-12-30 | 2020-12-30 | Double-water-temperature water outlet variable-frequency air source heat pump system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665207A (en) * | 2020-12-30 | 2021-04-16 | 南京三尼电器设备有限公司 | Double-water-temperature water outlet variable-frequency air source heat pump system |
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- 2020-12-30 CN CN202023283860.0U patent/CN214371045U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665207A (en) * | 2020-12-30 | 2021-04-16 | 南京三尼电器设备有限公司 | Double-water-temperature water outlet variable-frequency air source heat pump system |
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