CN211084494U - Multi-split air conditioner system with functions of delaying frosting and defrosting without stopping - Google Patents
Multi-split air conditioner system with functions of delaying frosting and defrosting without stopping Download PDFInfo
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- CN211084494U CN211084494U CN201921859029.XU CN201921859029U CN211084494U CN 211084494 U CN211084494 U CN 211084494U CN 201921859029 U CN201921859029 U CN 201921859029U CN 211084494 U CN211084494 U CN 211084494U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model discloses a multi-split air conditioner system with functions of delaying frosting and defrosting without stopping, which comprises a refrigerant circulation loop formed by connecting a compressor, a four-way valve, an outdoor heat exchanger, an indoor heat exchanger and an electronic expansion valve through pipelines, wherein the pipeline between the electronic expansion valve and the outdoor heat exchanger comprises a first refrigerant flow path and a second refrigerant flow path which are connected in parallel, a heating coil is arranged on the second refrigerant flow path, and the heating coil is arranged in a heat storage water tank to exchange heat with hot water in the heat storage water tank; the frosting of outdoor heat exchanger is postponed under being in the mode of heating at many online systems, and when reaching the defrosting condition, when the defrosting, can keep many online systems to continuously heat the operation, can not influence indoor ambient temperature, continuously keeps the comfort level of indoor environment, and the practicality is high.
Description
Technical Field
The utility model belongs to the technical field of the air conditioning technique and specifically relates to a many online systems with delay frosting and defrosting function does not shut down.
Background
Present multi-split air-conditioning system, under the heating mode, outdoor heat exchanger is as the evaporimeter, when outdoor ambient temperature is lower, the frosting situation can appear in outdoor heat exchanger, its heat transfer capacity variation behind the outdoor heat exchanger frosting, can the whole multi-split air-conditioning system's of greatly reduced heating ability, and present usual defrosting mode is for falling the cross valve power failure, the refrigerant gets into refrigeration cycle, compressor exhaust high temperature high pressure refrigerant gets into outdoor heat exchanger, thereby make outdoor heat exchanger's temperature rise give the frost and melt, but, indoor heat exchanger has become the evaporimeter (be refrigerating state) this moment, and lead to indoor heat exchanger not only not to have lasting heating, still absorb the heat from the indoor side on the contrary, lead to indoor ambient temperature to descend, influence user's comfortable experience.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to provide a practicality is good, improves user experience's the many online systems that have the function of delaying frosting and defrosting not shut down.
In order to achieve the above purpose, the utility model provides a scheme does: a multi-split air conditioner system with functions of delaying frosting and defrosting without stopping comprises a refrigerant circulation loop formed by connecting a compressor, a four-way valve, an outdoor heat exchanger, an indoor heat exchanger and an electronic expansion valve through pipelines, wherein the pipelines between the electronic expansion valve and the outdoor heat exchanger comprise a first refrigerant flow path and a second refrigerant flow path which are connected in parallel, a first electromagnetic valve for controlling the on-off of the first refrigerant flow path is arranged on the first refrigerant flow path, a heating coil is arranged on the second refrigerant flow path, the inlet end and the outlet end of the heating coil are respectively provided with a second electromagnetic valve, and the heating coil is arranged in a heat storage water tank to exchange heat with hot water in the heat storage water tank; the system also comprises a first temperature sensor arranged in the heat storage water tank and a second temperature sensor arranged on the indoor heat exchanger; when the temperature detected by the first temperature sensor is lower than or equal to the temperature detected by the second temperature sensor, the first electromagnetic valve is opened, and the second electromagnetic valves are closed.
Furthermore, the electronic expansion valve comprises an outdoor electronic expansion valve and an indoor electronic expansion valve, and the first refrigerant flow path and the second refrigerant flow path are arranged on a pipeline between the outdoor heat exchanger and the outdoor electronic expansion valve;
Furthermore, the outdoor electronic expansion valve is also connected in parallel with a bypass branch, a third electromagnetic valve and a one-way valve are arranged on the bypass branch, the inlet end of the one-way valve is communicated with the outdoor heat exchanger, and the outlet end of the one-way valve is communicated with the indoor heat exchanger.
Furthermore, the inlet end and the outlet end of the second refrigerant flow path are respectively provided with a stop valve.
Further, the second temperature sensor is arranged in the middle of the indoor heat exchanger.
Further, the outdoor heat exchanger and the indoor heat exchanger are respectively provided with an outdoor fan and an indoor fan; when the multi-split air conditioning system reaches a defrosting condition in the heating mode and the temperature detected by the first temperature sensor is higher than a preset temperature value of the temperature detected by the second temperature sensor, the working state of the four-way valve is kept, the first electromagnetic valve is closed, the two second electromagnetic valves are opened, meanwhile, the outdoor fan runs at a maximum wind speed gear, the opening degree of the outdoor electronic expansion valve is adjusted to be maximum, the indoor fan runs at a minimum wind speed gear, and the opening degree of the indoor electronic expansion valve is adjusted to be maximum.
Further, the heat storage water tank is provided with a heating device for heating hot water stored therein.
Further, the heat storage water tank is connected with a preset boiler or a factory waste heat hot water tank to obtain hot water.
Furthermore, the indoor heat exchangers are multiple and are arranged in parallel.
Further, the first temperature sensor is arranged at the bottom of the heat storage water tank.
Compared with the prior art, the utility model beneficial effects are that, can be in the frosting of the outdoor heat exchanger of the mode extension that heats at many online systems, and when reaching the defrosting condition, in the defrosting, can keep many online systems to continuously heat the operation, can not influence indoor ambient temperature, continuously keep the comfort level of indoor environment, the practicality is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The system comprises a compressor 1, a four-way valve 2, an outdoor heat exchanger 3, an indoor heat exchanger 4, an outdoor electronic expansion valve 51, an indoor electronic expansion valve 52, a first refrigerant flow path 6, a second refrigerant flow path 7, a first electromagnetic valve 8, a heating coil 9, a second electromagnetic valve 10 and a heat storage water tank 11.
Detailed Description
The invention will be further described with reference to the following specific embodiments:
Referring to fig. 1, the present embodiment is a multi-split system with frost delaying and non-stop defrosting functions, including a refrigerant circulation loop formed by connecting a compressor 1, a four-way valve 2, an outdoor heat exchanger 3, an indoor heat exchanger 4, and an electronic expansion valve 5 through a pipeline, where the pipeline between the electronic expansion valve 5 and the outdoor heat exchanger 3 includes a first refrigerant flow path 6 and a second refrigerant flow path 7 connected in parallel, where the first refrigerant flow path 6 is provided with a first solenoid valve 8 for controlling the on-off thereof, the second refrigerant flow path 7 is provided with a heating coil 9, and an inlet end and an outlet end of the heating coil 9 are both provided with a second solenoid valve 10, and the heating coil 9 is arranged in a heat storage water tank 11 to exchange heat with hot water in the heat storage water tank 11; and the system also comprises a first temperature sensor arranged in the heat storage water tank 11 and a second temperature sensor arranged on the indoor heat exchanger 4.
In the embodiment, when the multi-split air-conditioning system is in the heating mode, when the temperature detected by the first temperature sensor is higher than the temperature detected by the second temperature sensor, the first electromagnetic valve 8 is closed, the two second electromagnetic valves 10 are opened, at this time, the refrigerant condensed and released from the indoor heat exchanger 4 flows into the second refrigerant flow path 7, is heated by the heating coil 9, and then enters the outdoor heat exchanger 3, the pressure of the refrigerant entering the outdoor heat exchanger 3 is improved through the heating coil 9 to improve the evaporation temperature, the frosting speed of the outdoor heat exchanger 3 is effectively delayed, when the temperature detected by the first temperature sensor is lower than or equal to the temperature detected by the second temperature sensor, when the first solenoid valve 8 is opened and the second solenoid valves 10 are closed, the refrigerant condensed and released from the indoor heat exchanger 4 directly flows into the outdoor heat exchanger 3 through the first refrigerant flow path 6.
In the present embodiment, the electronic expansion valve 5 includes an outdoor electronic expansion valve 51 and an indoor electronic expansion valve 52, and the first refrigerant flow path 6 and the second refrigerant flow path 7 are provided in a pipeline between the outdoor heat exchanger 3 and the outdoor electronic expansion valve 51.
In this embodiment, the outdoor electronic expansion valve 51 is further connected in parallel with a bypass branch, a third electromagnetic valve and a check valve are arranged on the bypass branch, an inlet end of the check valve is communicated with the outdoor heat exchanger 3, an outlet end of the check valve is communicated with the indoor heat exchanger 4, and by the one-way conduction characteristic of the check valve, in the multi-split air-cooling mode, the refrigerant is divided into two parts, one part flows to the indoor heat exchanger 4 through the third electromagnetic valve and the check valve, the other part flows to the indoor heat exchanger 4 through the outdoor electronic expansion valve 51, and when the multi-split air-cooling mode is in the heating mode, the refrigerant can only flow to the outdoor heat exchanger 3.
In this embodiment, the inlet end and the outlet end of the second refrigerant flow path 7 are respectively provided with a stop valve, so that a technician can stop the second refrigerant flow path 7 by manual operation, i.e. stop the operation of the heating coil 9.
In the present embodiment, the second temperature sensor is provided at a middle position of the indoor heat exchanger 4.
In this embodiment, the outdoor heat exchanger 3 and the indoor heat exchanger 4 are respectively provided with an outdoor fan and an indoor fan; when the multi-split air conditioning system reaches a defrosting condition in the heating mode (the defrosting condition is that the surface temperature of the outdoor heat exchanger 3 is detected to be lower than a preset temperature value), and the temperature detected by the first temperature sensor is higher than the temperature detected by the second temperature sensor (the preset temperature value is determined by the volume of the heat storage water tank 11 through tests), the working state of the four-way valve 2 is kept, the first electromagnetic valve 8 is closed, the two second electromagnetic valves 10 are opened, meanwhile, the outdoor fan operates at a maximum wind speed gear, the opening degree of the outdoor electronic expansion valve 51 is adjusted to be maximum, the indoor fan operates at a minimum wind speed gear, the opening degree of the indoor electronic expansion valve 52 is adjusted to be maximum, the pressure of refrigerant entering the outdoor heat exchanger 3 is increased through the heating coil 9 to increase the evaporation temperature to be higher than the frosting temperature of the outdoor heat exchanger 3 so as to melt and remove frost on the outdoor heat exchanger, in the process, the multi-split system still keeps heating operation although the heating quantity is reduced, the indoor temperature is hardly stable and unchanged, and the environmental comfort of a user is not reduced.
In the present embodiment, the hot-water storage tank 11 is provided with a heating device, such as an electric assist device or the like, for heating hot water stored therein.
In some embodiments, the hot water storage tank 11 is connected to a pre-set boiler or a plant waste hot water tank to obtain hot water.
In the present embodiment, the indoor heat exchangers 4 are two and arranged in parallel with each other.
In the present embodiment, the first temperature sensor is provided at the bottom of the hot water storage tank 11.
In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The utility model provides a many online systems with delay frosting and defrosting function not shutting down, includes the refrigerant circulation return circuit that constitutes through the tube coupling by compressor (1), cross valve (2), outdoor heat exchanger (3), indoor heat exchanger (4), electronic expansion valve (5), its characterized in that: the pipeline between the electronic expansion valve (5) and the outdoor heat exchanger (3) comprises a first refrigerant flow path (6) and a second refrigerant flow path (7) which are connected in parallel, wherein a first electromagnetic valve (8) for controlling the on-off of the first refrigerant flow path (6) is arranged on the first refrigerant flow path, a heating coil (9) is arranged on the second refrigerant flow path (7), the inlet end and the outlet end of the heating coil (9) are respectively provided with a second electromagnetic valve (10), and the heating coil (9) is arranged in a heat storage water tank (11) to exchange heat with hot water in the heat storage water tank (11); the system also comprises a first temperature sensor arranged in the heat storage water tank (11) and a second temperature sensor arranged on the indoor heat exchanger (4); when the multi-split air-conditioning system is in a heating mode, when the temperature detected by the first temperature sensor is higher than that detected by the second temperature sensor, the first electromagnetic valve (8) is closed, the two second electromagnetic valves (10) are opened, and when the temperature detected by the first temperature sensor is lower than or equal to that detected by the second temperature sensor, the first electromagnetic valve (8) is opened, and the two second electromagnetic valves (10) are closed.
2. The multi-split air conditioning system with frost delaying and non-stop defrosting functions as claimed in claim 1, wherein: the electronic expansion valve (5) comprises an outdoor electronic expansion valve (51) and an indoor electronic expansion valve (52), and the first refrigerant flow path (6) and the second refrigerant flow path (7) are arranged on a pipeline between the outdoor heat exchanger (3) and the outdoor electronic expansion valve (51).
3. The multi-split air conditioning system with frost delaying and non-stop defrosting functions as claimed in claim 2, wherein: the outdoor electronic expansion valve (51) is also connected with a bypass branch in parallel, a third electromagnetic valve and a one-way valve are arranged on the bypass branch, the inlet end of the one-way valve is communicated with the outdoor heat exchanger (3), and the outlet end of the one-way valve is communicated with the indoor heat exchanger (4).
4. The multi-split air conditioning system with frost delaying and non-stop defrosting functions as claimed in claim 1, wherein: and the inlet end and the outlet end of the second refrigerant flow path (7) are respectively provided with a stop valve.
5. The multi-split air conditioning system with frost delaying and non-stop defrosting functions as claimed in claim 1, wherein: the second temperature sensor is arranged in the middle of the indoor heat exchanger (4).
6. The multi-split air conditioning system with frost delaying and non-stop defrosting functions as claimed in claim 2, wherein: the outdoor heat exchanger (3) and the indoor heat exchanger (4) are respectively provided with an outdoor fan and an indoor fan; when the multi-split air conditioning system reaches a defrosting condition in the heating mode and the temperature detected by the first temperature sensor is higher than the preset temperature value of the temperature detected by the second temperature sensor, the working state of the four-way valve (2) is kept, the first electromagnetic valve (8) is closed, the two second electromagnetic valves (10) are opened, meanwhile, the outdoor fan runs at the maximum wind speed gear, the opening degree of the outdoor electronic expansion valve (51) is adjusted to be maximum, the indoor fan runs at the minimum wind speed gear, and the opening degree of the indoor electronic expansion valve (52) is adjusted to be maximum.
7. The multi-split air conditioning system with frost delaying and non-stop defrosting functions as claimed in claim 1, wherein: the heat storage water tank (11) is provided with a heating device for heating hot water stored therein.
8. The multi-split air conditioning system with frost delaying and non-stop defrosting functions as claimed in claim 1, wherein: the heat storage water tank (11) is connected with a preset boiler or a factory waste heat hot water tank to obtain hot water.
9. The multi-split air conditioning system with frost delaying and non-stop defrosting functions as claimed in claim 1, wherein: the indoor heat exchangers (4) are arranged in parallel.
10. The multi-split air conditioning system with frost delaying and non-stop defrosting functions as claimed in claim 1, wherein: the first temperature sensor is arranged at the bottom of the heat storage water tank (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921859029.XU CN211084494U (en) | 2019-10-31 | 2019-10-31 | Multi-split air conditioner system with functions of delaying frosting and defrosting without stopping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921859029.XU CN211084494U (en) | 2019-10-31 | 2019-10-31 | Multi-split air conditioner system with functions of delaying frosting and defrosting without stopping |
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| CN211084494U true CN211084494U (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921859029.XU Active CN211084494U (en) | 2019-10-31 | 2019-10-31 | Multi-split air conditioner system with functions of delaying frosting and defrosting without stopping |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091215A (en) * | 2021-04-08 | 2021-07-09 | 青岛海尔空调器有限总公司 | Heating control method of air conditioner |
| CN114076384A (en) * | 2020-08-20 | 2022-02-22 | 广东美的制冷设备有限公司 | Control method and system of air conditioning equipment, air conditioning equipment and storage medium |
| CN115614927A (en) * | 2022-11-11 | 2023-01-17 | 珠海格力电器股份有限公司 | Air conditioning system and defrosting control method thereof |
-
2019
- 2019-10-31 CN CN201921859029.XU patent/CN211084494U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076384A (en) * | 2020-08-20 | 2022-02-22 | 广东美的制冷设备有限公司 | Control method and system of air conditioning equipment, air conditioning equipment and storage medium |
| CN113091215A (en) * | 2021-04-08 | 2021-07-09 | 青岛海尔空调器有限总公司 | Heating control method of air conditioner |
| CN113091215B (en) * | 2021-04-08 | 2022-07-19 | 青岛海尔空调器有限总公司 | Heating control method of air conditioner |
| CN115614927A (en) * | 2022-11-11 | 2023-01-17 | 珠海格力电器股份有限公司 | Air conditioning system and defrosting control method thereof |
| CN115614927B (en) * | 2022-11-11 | 2024-06-04 | 珠海格力电器股份有限公司 | Air conditioning system and defrosting control method thereof |
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