CN212511597U - One-use one-standby air conditioning system - Google Patents
One-use one-standby air conditioning system Download PDFInfo
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- CN212511597U CN212511597U CN202021503979.1U CN202021503979U CN212511597U CN 212511597 U CN212511597 U CN 212511597U CN 202021503979 U CN202021503979 U CN 202021503979U CN 212511597 U CN212511597 U CN 212511597U
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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 one-use one-standby air conditioning system, which comprises two sets of refrigeration systems, wherein one set of the two sets of refrigeration systems is used as a main refrigeration system, the other set of the two sets of refrigeration systems is used as a standby refrigeration system, evaporators in the two sets of refrigeration systems are coupled together to form a coupling structure, and the coupling structure is integrally matched with two centrifugal fans; the air outlets of the two centrifugal fans are respectively connected with one ends of the two air doors, the other ends of the two air doors are connected with one ends of the two loads in a one-to-one correspondence manner, and the other ends of the two loads are connected in common through a pipeline and communicated to the coupling structure; the control unit is respectively connected with the compressors, the axial flow fans and the electronic expansion valves in the two sets of refrigeration systems, the two centrifugal fans and the two air doors in a control mode. The utility model discloses simple structure easily makes, and is with low costs, efficient, simple to operate, and the fault rate is low, and the reliability is high, and easy maintenance has realized the air conditioning of one-use-one-standby.
Description
Technical Field
The utility model relates to an air conditioning equipment field specifically is an one-use one is equipped with air conditioning system.
Background
The special air conditioner is matched with the special equipment, has the functions of refrigeration, heating and the like, and provides a good temperature and humidity environment for the special equipment. The special equipment not only has large heat productivity and large wind resistance, but also needs to work reliably in all weather, and for the purpose of working reliably in all weather, the special equipment works in a one-use one-standby mode, so that the air conditioning device for conditioning the temperature and humidity environment of the special equipment also needs to work in one-use one-standby mode. Based on the temperature and humidity regulation requirement of the one-use one-standby special equipment on the closed heating space of the special equipment, the temperature of any one group of equipment of the one-use one-standby special equipment can be reduced no matter any one group of refrigerating systems is started. The air conditioning system adopts a steam compression type to realize refrigeration and electric heating, and air is supplied through an air duct to regulate the temperature and the humidity of a one-use one-standby load. Usually when opening a set of refrigerating system, the air supply is through one with one and be equipped with two loads, can carry out temperature humidity control to the load during the load of the work of opening, through backup load because load itself does not work and produces the heat consequently not take place the heat exchange, owing to through two loads, consequently air supply resistance increases and the air return temperature who returns again is lower, it is big to cause the big amount of wind of air supply fan wind pressure that air conditioning equipment needs to choose for use, also can cause the load of sharing to increase in addition, consequently there is the noise height above the mode, refrigeration cost is high, defect such as power consumption is big.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a one-by-one is equipped with air conditioning system to it is high to solve the existence noise that prior art one-by-one was equipped with air conditioning equipment and exists, and refrigeration cost is high, the big problem of power consumption.
In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:
the one-use one-standby air conditioning system comprises two sets of refrigerating systems, wherein each set of refrigerating system is respectively composed of a compressor, a condenser provided with an axial flow fan, a liquid storage device, a filter, an electronic expansion valve, an evaporator and a gas-liquid separator, and is characterized in that: one of the two refrigeration systems is used as a main refrigeration system, the other refrigeration system is used as a standby refrigeration system, evaporators of the two refrigeration systems are coupled together to form a coupling structure, the air outlet side of the evaporator of the first refrigeration system in the coupling structure is communicated with the air inlet side of the evaporator of the second refrigeration system, the coupling structure is integrally matched with two centrifugal fans, and the air inlets of the two centrifugal fans are communicated with the air outlet side of the evaporator of the second refrigeration system in the coupling structure;
the air outlet of one centrifugal fan is respectively connected with one end of a first air door and one end of a second air door, the air outlet of the other centrifugal fan is also respectively connected with one end of the first air door and one end of the second air door, the other end of the first air door is connected with one end of a load, the other end of the second air door is connected with one end of the other load, and the other ends of the two loads are connected in common through a pipeline and communicated to the air inlet side of an evaporator of a first set of refrigeration system in the coupling structure;
the control unit is respectively connected with the compressor, the axial flow fan, the electronic expansion valve, the two centrifugal fans and the two air doors in the two sets of refrigeration systems in a control mode, the control unit controls the main refrigeration system and the standby refrigeration system to work in a switching mode, the control unit controls the two centrifugal fans to provide cold air in a switching mode, and meanwhile the control unit controls the air doors corresponding to the working load to be opened to enable the cold air to be guided to the working load.
The one-use one-standby air conditioning system is characterized in that: in each set of refrigerating system, the outlet end of a compressor is connected with one end of a condenser through a pipeline, the other end of the condenser is communicated with the interior of a liquid storage device through a pipeline, the interior of the liquid storage device is connected with one end of a filter through a pipeline, the other end of the filter is connected with the inlet end of an electronic expansion valve through a pipeline, the outlet end of the electronic expansion valve is connected with one end of an evaporator through a pipeline, the other end of the evaporator is connected with the inlet end of a gas-liquid separator through a pipeline, the outlet end of the gas-liquid separator A is connected with the inlet end of the compressor through a pipeline.
The one-use one-standby air conditioning system is characterized in that: the protection system comprises a temperature sensor and two low-voltage protectors, wherein the temperature sensor is arranged on the air inlet side of the evaporator of the first refrigeration system in a coupling structure formed by evaporators of the two refrigeration systems, and the temperature sensor is used for detecting an air inlet temperature signal of the coupling structure; one low-pressure protector bypass is communicated and connected to a pipeline between the gas-liquid separator and the compressor in the first set of refrigeration system, and the other low-pressure protector bypass is communicated to a pipeline between the gas-liquid separator and the compressor in the second set of refrigeration system; the temperature sensor and the low-voltage protector are respectively electrically connected with the control unit, and the control unit receives signals of the temperature sensor and the low-voltage protector.
The one-use one-standby air conditioning system is characterized in that: the two fluorine filling connecting nozzles are communicated to pipelines between the gas-liquid separator and the compressor in the two sets of refrigerating systems in a one-to-one correspondence bypass mode.
The one-use one-standby air conditioning system is characterized in that: an electric heating pipe is arranged in the coupling structure, the electric heating pipe is embedded between the two evaporators in the coupling structure, and the control unit is in control connection with the electric heating pipe.
The utility model discloses simple structure easily makes, and is with low costs, efficient, and power consumption is little, the noise is low, simple to operate, and the fault rate is low, and the reliability is high, and easy maintenance can realize air conditioning high-efficiently. In addition, the refrigeration system can be effectively protected, safety and reliability are realized, and energy is saved. Compared with the prior art, the utility model discloses still have following advantage:
(1) the main and standby systems are completely independent and have no single-point effect;
(2) the main and standby systems can be automatically switched;
(3) the air quantity of the main and standby systems is adjustable, and the energy is adjustable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, the one-use one-standby air conditioning device includes a refrigeration system a, a refrigeration system B, a condensation ventilation system, an air supply system, and an electric control system, wherein:
the refrigeration system A comprises a compressor A1, a condenser A2, an accumulator A3, a filter A4, an electronic expansion valve A5, an evaporator A6 and a gas-liquid separator A7. The outlet end of the compressor A1 is connected with one end of the condenser A2 through a pipeline, the other end of the condenser A2 is communicated with the inside of the liquid storage device A3 through a pipeline, the inside of the liquid storage device A3 is also connected with one end of the filter A4 through a pipeline, the other end of the filter A4 is connected with the inlet end of the electronic expansion valve A5 through a pipeline, the outlet end of the electronic expansion valve A5 is connected with one end of the evaporator A6 through a pipeline, the other end of the evaporator A6 is communicated with the inlet end of the gas-liquid separator A7 through a pipeline, and the outlet end of the gas-liquid separator A7 is connected with the inlet end of the compressor A1 through a. The condenser a1 and the evaporator a6 realize heat exchange between the refrigeration cycle circuits of the refrigeration system a.
The refrigeration system B comprises a compressor B8, a condenser B9, an accumulator 10, a filter B11, an electronic expansion valve B12, an evaporator B13 and a gas-liquid separator B14. The outlet end of the compressor B8 is connected with one end of a condenser B9 through a pipeline, the other end of the condenser B9 is communicated with the interior of a liquid storage device B10 through a pipeline, the interior of the liquid storage device B10 is also connected with one end of a filter B11 through a pipeline, the other end of the filter B11 is connected with the inlet end of an electronic expansion valve B12 through a pipeline, the outlet end of the electronic expansion valve B12 is connected with one end of an evaporator B13 through a pipeline, the other end of the evaporator B13 is connected with the inlet end of a gas-liquid separator B14 through a pipeline, and the outlet end of the gas-liquid separator B14 is connected with the inlet end of the compressor B8 through a pipeline. The condenser B9 and the evaporator B13 realize heat exchange between the refrigeration cycle circuits of the refrigeration system B.
The condensing and ventilating system comprises an axial fan A15 matched with a condenser A2 in a refrigerating system A and an axial fan B16 matched with a condenser B9 in a refrigerating system B.
The air supply system comprises an evaporator A6 and an evaporator B13 which are coupled together to form a coupling structure, the air outlet side of the evaporator A6 in the coupling structure faces the air inlet side of the evaporator B13, the coupling structure is integrally matched with a centrifugal fan A18 and a centrifugal fan B19, and the air inlets of the centrifugal fan A18 and the centrifugal fan B19 face the air outlet side of the evaporator B13.
The damper a20, the damper B21, the load a22, the load B23, the air duct, and the like constitute an air supply circuit. Evaporator A6, evaporator B13, load A22 and load B23 realize heat exchange of the air supply system. The air outlet of the centrifugal fan A18 is respectively connected with one end of an air door A20 and one end of an air door B21 through an air duct, and the outlet air of the centrifugal fan B19 is also respectively connected with one end of an air door A20 and one end of an air door B21 through the air duct. The other end of damper a20 is connected to one end of load a22 via an air duct, and the other end of damper B21 is connected to one end of load B23 via an air duct. The other ends of load a22 and load B23 are connected together and to the air inlet side of evaporator a6 in the coupling arrangement. The control unit can control air flowing out of the load to exchange heat with the evaporator A6 in the coupling structure and then return to the load through the centrifugal fan A18, and temperature and humidity adjustment of the load A22 and the load B23 is achieved. The control unit can also control the air flowing out of the load to exchange heat with the evaporator B13 of the coupling structure and then return to the load through the centrifugal fan B19, so that the temperature and humidity of the load A22 and the load B23 are adjusted. The control unit realizes temperature and humidity regulation on the working load by controlling the air door A20 corresponding to the working load A22 and the air door B21 corresponding to the working load B23.
The electric control system comprises a power supply and a control unit 24, wherein the power supply is connected with the compressor A1, the compressor B8, the axial flow fan A15, the axial flow fan B16, the centrifugal fan A18 and the centrifugal fan B19 in a power supply mode through the control unit 24.
The evaporator a6 and the evaporator B13 are coupled together, and the electric heating tube 17 is embedded in the coupled evaporators.
The fluorine filling nozzle A25 in the refrigeration system A is communicated to a pipeline between a gas-liquid separator A7 and a compressor A1 by a bypass.
The fluorine filling nozzle B26 in the refrigeration system B is communicated to a pipeline between the gas-liquid separator B14 and the compressor B8 by a bypass.
The protection system comprises a temperature sensor 27, a low-voltage protector A28 and a low-voltage protector B29, wherein the temperature sensor 26 is arranged at the air inlet positions of the evaporator A6 and the evaporator B13 after coupling, namely the air inlet side of the evaporator A6, so as to monitor the air inlet temperature of the evaporator. The low-pressure protector A28 is communicated to a pipeline between the gas-liquid separator A7 and the compressor A1 in a bypass mode, and the low-pressure protector B29 is communicated to a pipeline between the gas-liquid separator B14 and the compressor B8 in a bypass mode.
The temperature sensor 27, the low-voltage protector a28 and the low-voltage protector B29 are respectively connected to the control unit 24, and the control unit 24 controls power supply to the compressors a1 and B8 in the refrigeration system A, B based on signals of the temperature sensor 27 and the low-voltage protectors a28 and B29.
The utility model discloses in:
the evaporator a6 and the evaporator B13 are coupled together, and the electric heating tube 17 is embedded in the coupled evaporators. And a centrifugal fan A18 and a centrifugal fan B19 are used together.
The fluorine charging connector A25 is communicated to the pipeline between the gas-liquid separator A7 and the compressor A1 by-pass.
The fluorine filling nozzle B26 is communicated to the pipeline between the gas-liquid separator B14 and the compressor B8 by-pass.
The temperature sensor 26 is arranged at the air inlet position after the evaporator A6 and the evaporator B13 are coupled.
A low-pressure protector A28 is arranged between the gas-liquid separator A7 and the compressor A1, and a low-pressure protector B29 is arranged between the gas-liquid separator B14 and the compressor B8.
Damper a20 is opened in synchronism with the corresponding load a22, and damper B21 is opened in synchronism with the corresponding load B23.
The control unit can output 0-10V control signals to the electronic expansion valve A5 and the electronic expansion valve B12.
After the air conditioner is powered on and started, the air conditioner enters full-automatic operation, and the working mode of the air conditioner is automatically selected according to the temperature difference; the corresponding operation mode can be selected through the mode key.
When the load A22 (or the load B23) is working, the control unit controls the corresponding damper A20 (or the damper B21) to be opened, and the refrigeration system A or the refrigeration system B is opened.
When the refrigeration system A works, the compressor A1 works to compress refrigerant into high-temperature high-pressure gas, the high-temperature high-pressure gas enters the condenser A2 to be cooled into liquid after heat exchange with forced convection air, the liquid enters the liquid storage device A3, passes through the filter A4 and enters the electronic expansion valve A5, the liquid is changed into low-temperature low-pressure refrigerant after throttling, enters the evaporator A6 to be changed into gas after heat exchange, passes through the gas-liquid separator A7 and enters the compressor A1 again, the circulation is repeated, and meanwhile, the axial flow fan A15 and the centrifugal fan A18 (or the centrifugal fan B19) work continuously to perform forced convection heat exchange to realize refrigeration.
When the refrigeration system B works, the compressor B8 works to compress refrigerant into high-temperature high-pressure gas, the high-temperature high-pressure gas enters the condenser B9 to be cooled into liquid after heat exchange with forced convection air, the liquid enters the liquid storage device B10, passes through the filter B11 and enters the electronic expansion valve B12, the liquid is changed into low-temperature low-pressure refrigerant after throttling, enters the evaporator B13 to be changed into gas after heat exchange, passes through the gas-liquid separator B14 and enters the compressor B8 again, the circulation is repeated, and meanwhile, the axial flow fan B16 and the centrifugal fan A18 (or the centrifugal fan B19) work continuously to perform forced convection heat exchange to realize refrigeration.
When heating, the electric heating pipe 17 works, and the centrifugal fan a18 (or the centrifugal fan B19) works continuously to force convection heat transfer to realize heating.
Centrifugal fan a18 is in operation. The outlet air of the centrifugal fan A18 enters the air door A20 (or the air door B21) through the air duct, and then enters the centrifugal fan A18 again after heat exchange is carried out between the load A22 (or the load B23) and the coupled evaporator when the air duct works, so that temperature and humidity adjustment of the load A22 (or the load B23) when the air duct works is realized.
Centrifugal fan B19 is in operation. The outlet air of the centrifugal fan B19 enters the air door A20 (or the air door B21) through the air duct, and then enters the centrifugal fan A19 again after heat exchange is carried out between the load A22 (or the load B23) and the coupled evaporator when the air duct works, so that the temperature and humidity of the load A22 (or the load B23) during the work are adjusted.
The temperature sensor 27 monitors the temperature (T) of the return air in the air conditioning equipment room in real time and feeds back the temperature (T) to the control unit 24, the control unit 24 automatically compares the return air temperature with the set temperature (T0), when the return air temperature reaches the set temperature, the compressor a1 (or the compressor B8) stops working, the refrigeration system a (the refrigeration system B) stops working, and the centrifugal fan a18 (or the centrifugal fan B19) continues working and ventilating. When the return air pressure in the refrigeration system is low, the low-pressure protector a28 (or the low-pressure protector B29) operates, and the compressor a1 (or the compressor B8) stops operating.
When T is more than or equal to T0+4 ℃, a 10V control signal is output to the electronic expansion valve A5 (or the electronic expansion valve B12).
When the temperature T0+4 ℃ is more than T and is more than or equal to T0+2 ℃, 8V control signals are output to the electronic expansion valve A5 (or the electronic expansion valve B12).
When the temperature T is more than T is equal to or more than T0 at the temperature T0+2 ℃, the control signal is output to the electronic expansion valve A5 (or the electronic expansion valve B12) to control 6V.
When T0 is more than T and is more than or equal to T0-1 ℃, the control signal of 3V is output to the electronic expansion valve A5 (or the electronic expansion valve B12).
The embodiments of the present invention are only descriptions of the preferred embodiments of the present invention, not right the present invention is designed and limited, without departing from the design concept of the present invention, the technical personnel in the field should fall into the protection scope of the present invention for various modifications and improvements made by the technical solution of the present invention, and the technical contents of the present invention are all recorded in the claims.
Claims (5)
1. The one-use one-standby air conditioning system comprises two sets of refrigerating systems, wherein each set of refrigerating system is respectively composed of a compressor, a condenser provided with an axial flow fan, a liquid storage device, a filter, an electronic expansion valve, an evaporator and a gas-liquid separator, and is characterized in that: one of the two refrigeration systems is used as a main refrigeration system, the other refrigeration system is used as a standby refrigeration system, evaporators of the two refrigeration systems are coupled together to form a coupling structure, the air outlet side of the evaporator of the first refrigeration system in the coupling structure is communicated with the air inlet side of the evaporator of the second refrigeration system, the coupling structure is integrally matched with two centrifugal fans, and the air inlets of the two centrifugal fans are communicated with the air outlet side of the evaporator of the second refrigeration system in the coupling structure;
the air outlet of one centrifugal fan is respectively connected with one end of a first air door and one end of a second air door, the air outlet of the other centrifugal fan is also respectively connected with one end of the first air door and one end of the second air door, the other end of the first air door is connected with one end of a load, the other end of the second air door is connected with one end of the other load, and the other ends of the two loads are connected in common through a pipeline and communicated to the air inlet side of an evaporator of a first set of refrigeration system in the coupling structure;
the control unit is respectively connected with the compressor, the axial flow fan, the electronic expansion valve, the two centrifugal fans and the two air doors in the two sets of refrigeration systems in a control mode, the control unit controls the main refrigeration system and the standby refrigeration system to work in a switching mode, the control unit controls the two centrifugal fans to provide cold air in a switching mode, and meanwhile the control unit controls the air doors corresponding to the working load to be opened to enable the cold air to be guided to the working load.
2. A service-backup air conditioning system as recited in claim 1, wherein: in each set of refrigerating system, the outlet end of a compressor is connected with one end of a condenser through a pipeline, the other end of the condenser is communicated with the interior of a liquid storage device through a pipeline, the interior of the liquid storage device is connected with one end of a filter through a pipeline, the other end of the filter is connected with the inlet end of an electronic expansion valve through a pipeline, the outlet end of the electronic expansion valve is connected with one end of an evaporator through a pipeline, the other end of the evaporator is connected with the inlet end of a gas-liquid separator through a pipeline, the outlet end of the gas-liquid separator A is connected with the inlet end of the compressor through a pipeline.
3. A service-backup air conditioning system according to claim 1 or 2, characterized in that: the protection system comprises a temperature sensor and two low-voltage protectors, wherein the temperature sensor is arranged on the air inlet side of the evaporator of the first refrigeration system in a coupling structure formed by evaporators of the two refrigeration systems, and the temperature sensor is used for detecting an air inlet temperature signal of the coupling structure; one low-pressure protector bypass is communicated and connected to a pipeline between the gas-liquid separator and the compressor in the first set of refrigeration system, and the other low-pressure protector bypass is communicated to a pipeline between the gas-liquid separator and the compressor in the second set of refrigeration system; the temperature sensor and the low-voltage protector are respectively electrically connected with the control unit, and the control unit receives signals of the temperature sensor and the low-voltage protector.
4. A service-backup air conditioning system as recited in claim 1, wherein: the two fluorine filling connecting nozzles are communicated to pipelines between the gas-liquid separator and the compressor in the two sets of refrigerating systems in a one-to-one correspondence bypass mode.
5. A service-backup air conditioning system as recited in claim 1, wherein: an electric heating pipe is arranged in the coupling structure, the electric heating pipe is embedded between the two evaporators in the coupling structure, and the control unit is in control connection with the electric heating pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021503979.1U CN212511597U (en) | 2020-07-27 | 2020-07-27 | One-use one-standby air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021503979.1U CN212511597U (en) | 2020-07-27 | 2020-07-27 | One-use one-standby air conditioning system |
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| Publication Number | Publication Date |
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| CN212511597U true CN212511597U (en) | 2021-02-09 |
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| CN202021503979.1U Active CN212511597U (en) | 2020-07-27 | 2020-07-27 | One-use one-standby air conditioning system |
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| CN (1) | CN212511597U (en) |
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