CN111189266B - Capillary tube adjusting device, control method and air conditioner - Google Patents
Capillary tube adjusting device, control method and air conditioner Download PDFInfo
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- CN111189266B CN111189266B CN202010019924.1A CN202010019924A CN111189266B CN 111189266 B CN111189266 B CN 111189266B CN 202010019924 A CN202010019924 A CN 202010019924A CN 111189266 B CN111189266 B CN 111189266B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
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- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The disclosure provides a capillary tube adjusting device, a control method and an air conditioner. The capillary adjusting device comprises a capillary adjusting module (1) which consists of one or more groups of capillary adjusting branches (5); the first pressure sensor (2) is used for detecting a first pressure on one side of the capillary tube adjusting module (1); the second pressure sensor (3) is used for detecting a second pressure on the other side of the capillary tube adjusting module (1); and the controller (4) is used for controlling the capillary adjusting branch (5) according to the first pressure and the second pressure so as to carry out fluid adjustment. And program control is realized, and the capillary tube is automatically replaced, so that the complexity of air conditioner debugging is reduced.
Description
Technical Field
The disclosure relates to the technical field of air conditioners, in particular to a capillary tube adjusting device, a capillary tube adjusting control method and an air conditioner.
Background
In the air conditioning system, the difference between the condensation temperature and the evaporation temperature is not large, and the refrigerating capacity is small. In order to simplify the structure of the air conditioner, a capillary tube is generally used as a throttling pressure reduction mechanism in a refrigeration system. The refrigerant has certain pressure drop when flowing through the capillary tube, and the liquid flow flowing through the capillary tube is certain, so the purposes of throttling, pressure reduction and refrigerant flow control can be realized by utilizing the capillary tube. The capillary tube has various inconveniences in the development process of the air conditioning system, for example, when the capillary tube is manually replaced, air in the capillary tube needs to be discharged, and the air discharge method used in the related technology can cause refrigerant leakage; in addition, the experimenter needs to enter the working condition room to operate, frequently changes the capillary tube, and can not estimate the lost refrigerant quantity.
Therefore, how to automatically replace the capillary tube and avoid the leakage of the refrigerant in the capillary tube are the concerns of researchers at present.
Disclosure of Invention
The problem that this disclosure solved is how to avoid the interior refrigerant leakage of capillary while changing the capillary automatically.
To solve the above problems, an aspect of the present disclosure provides a capillary regulating device, the device including: the capillary adjusting module 1 consists of one or more groups of capillary adjusting branches 5; a first pressure sensor 2 for detecting a first pressure at one side of the capillary tube adjusting module 1; the second pressure sensor 3 is used for detecting a second pressure on the other side of the capillary tube adjusting module 1; and the controller 4 is used for controlling the capillary adjusting branch 5 according to the first pressure and the second pressure so as to carry out fluid adjustment.
Therefore, the capillary adjusting branch is automatically started or replaced for throttling through a control program in the controller, manual starting or replacement of the capillary adjusting branch is not needed, and operation complexity is reduced.
Optionally, when the capillary adjustment device is in a replacement mode: the controller 4 is further configured to turn off the high-pressure side of the capillary adjusting branch 5 to be replaced according to the first pressure and the second pressure, and turn off the low-pressure side of the capillary adjusting branch 5 to be replaced after a preset time.
Therefore, on the basis of automatically replacing the capillary adjusting branch, the leakage and the waste of the refrigerant in the capillary adjusting branch to be replaced are avoided.
Optionally, each of the capillary adjustment branches 5 comprises: a capillary 6 for fluid conditioning; a first solenoid valve 7 disposed at one side of the capillary 6; a second solenoid valve 8 disposed at the other side of the capillary 6; the controller 4 is further configured to control the first solenoid valve 7 and the second solenoid valve 8 according to the first pressure and the second pressure to gate the corresponding capillary tube 6 for fluid regulation.
Therefore, the capillary adjusting branch circuit is automatically started or replaced by the electromagnetic valve for throttling through a control program in the controller, the electromagnetic valve acts quickly, the speed of starting or replacing the capillary adjusting branch circuit is increased, and development and debugging are facilitated.
Optionally, each capillary adjustment branch 5 further comprises: a first detachable stop valve 9; stop valve 10 can be dismantled to the second, first stop valve 9 can be dismantled and stop valve 10 can be dismantled to the second is connected respectively the both sides of capillary 6 are used for dismantling capillary 6.
Therefore, the capillary tube adjusting device is convenient to disassemble and use capillary tubes of other specifications, and the application range of the capillary tube adjusting device is widened.
Optionally, the dimensions of the capillaries 6 in different capillary adjustment branches 5 are different.
Therefore, the capillary tubes with different specifications can be replaced, different throttling effects are achieved, and the capillary tubes with the corresponding specifications can be selected according to the throttling requirements of the device.
Optionally, each of the capillary adjustment branches 5 comprises: a first branch 11 for guiding the fluid flowing into the capillary regulation module 1 to the capillary regulation branch 5 where it is located; a second branch 12 for conducting away the fluid of the capillary regulation branch 5 in which it is located.
Optionally, the apparatus further comprises: a first temperature sensor 13 for detecting a first temperature at one side of the capillary tube adjusting module 1; a second temperature sensor 14 for detecting a second temperature of the other side of the capillary tube adjusting module 1; the controller 4 is also configured to monitor the fluid regulation based on the first and second temperatures.
Thus, by detecting the temperature before and after fluid regulation, it is monitored whether the fluid regulation of the capillary regulation branch is normal.
Another aspect of the present disclosure provides a method of controlling a capillary adjustment device as described above, the method comprising: the first pressure sensor 2 detects a first pressure on one side of the capillary tube adjusting module 1; the second pressure sensor 3 detects a second pressure on the other side of the capillary tube adjusting module 1; the controller 4 controls the capillary regulating branch 5 according to the first pressure and the second pressure to perform fluid regulation.
Optionally, when the capillary adjustment device is in a replacement mode, the method further comprises: the controller 4 shuts off the high-pressure side of the capillary adjusting branch 5 to be replaced according to the first pressure and the second pressure; after a preset time, the controller 4 switches off the low-pressure side of the capillary regulating branch 5 to be replaced.
The control method is the same as the advantages of the capillary tube adjusting device relative to the prior art, and the detailed description is omitted here.
Another aspect of the present disclosure provides an air conditioner including: the capillary adjustment device as described above; an outdoor unit 15 connected to a side of the capillary tube adjusting device where the first branch tube 11 is located; and an indoor unit 16 connected to the capillary tube adjusting device on the side of the second branch pipe 12.
The air conditioner has the same advantages of the capillary tube adjusting device compared with the prior art, and the detailed description is omitted.
Drawings
FIG. 1 is a schematic structural diagram of a capillary adjustment device according to an embodiment of the present disclosure;
FIG. 2 is a schematic view illustrating an operation state of a capillary tube adjusting device according to an embodiment of the present disclosure;
FIG. 3 is a flow chart illustrating the start-up operation of a capillary adjustment device according to an embodiment of the present disclosure;
FIG. 4 is a flow chart illustrating the process of replacing a capillary tube by a capillary tube adjustment device according to an embodiment of the present disclosure;
FIG. 5 is a flow chart of a method of controlling a capillary adjustment device according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an air conditioner according to an embodiment of the present disclosure.
Description of reference numerals:
1-a capillary tube adjustment module; 2-a first pressure sensor; 3-a second pressure sensor; 4-a controller; 5-capillary regulating branch; 6-capillary tube; 7-a first solenoid valve; 8-a second solenoid valve; 9-a first detachable stop valve; 10-a second removable stop valve; 11-a first branch; 12-a second branch; 13-a first temperature sensor; 14-a second temperature sensor; 15-an outdoor unit; 16-an indoor unit; 17-personal computer.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 is a schematic structural diagram of a capillary adjustment device according to an embodiment of the present disclosure, and referring to fig. 1, a detailed description is given to the structure shown in fig. 1 in conjunction with fig. 2.
As shown in fig. 1, the capillary tube adjustment device includes a capillary tube adjustment module 1, a first pressure sensor 2, a second pressure sensor 3, and a controller 4.
The capillary adjusting module 1 is composed of one or more groups of capillary adjusting branches 5, and different capillary adjusting branches 5 are used for realizing fluid adjustment with different effects.
And the first pressure sensor 2 is arranged at one side of the capillary tube adjusting module 1 and is used for detecting the first pressure at the side of the capillary tube adjusting module 1.
And the second pressure sensor 3 is arranged on the other side of the capillary tube adjusting module 1 and is used for detecting the second pressure on the other side of the capillary tube adjusting module 1. When fluid flows through the capillary tube adjusting module 1, the first pressure is not equal to the second pressure, the side with the larger numerical value is the high-pressure side of the capillary tube adjusting module 1, and the side with the smaller numerical value is the low-pressure side of the capillary tube adjusting module 1.
The controller 4 is used for controlling the capillary regulating branch 5 according to the first pressure and the second pressure so as to regulate the fluid. Specifically, for example, when the capillary tube adjusting device is in the replacement mode, the capillary tube adjusting branch 5 in the on state (i.e., the capillary tube adjusting branch 5 to be replaced) needs to be turned off at this time, another group of capillary tube adjusting branches 5 in the off state is turned on, the controller 4 first turns on the capillary tube adjusting branch 5 in the off state, then determines the high-pressure side and the low-pressure side of the capillary tube adjusting branch 5 to be replaced according to the first pressure and the second pressure, turns off the high-pressure side of the capillary tube adjusting branch 5 to be replaced, and turns off the low-pressure side of the capillary tube adjusting branch 5 to be replaced after a preset time. The preset time is, for example, 3 minutes, to ensure that the refrigerant in the capillary adjustment branch 5 to be replaced completely flows out, so as to avoid leakage and waste of the refrigerant in the capillary adjustment branch 5 to be replaced.
Through the control program in the controller, the capillary adjusting branch is automatically started or replaced to throttle, the capillary adjusting branch does not need to be manually started or replaced, the operation complexity is reduced, and the leakage and the waste of the refrigerant in the capillary adjusting branch to be replaced are also avoided.
In this embodiment, each capillary regulating branch 5 includes a capillary 6, a first solenoid valve 7, and a second solenoid valve 8. The capillary 6 is used for fluid regulation, the first electromagnetic valve 7 and the second electromagnetic valve 8 are respectively arranged at two sides of the capillary 6, and the controller 4 is further used for controlling the first electromagnetic valve 7 and the second electromagnetic valve 8 according to the first pressure and the second pressure so as to gate the corresponding capillary 6 for fluid regulation.
Specifically, still taking the capillary tube adjusting device in the replacement mode as an example, the controller 4 firstly turns on the first solenoid valve 7 and the second solenoid valve 8 in the capillary tube adjusting branch 5 in the off state, then turns off the solenoid valve on the high-pressure side of the capillary tube adjusting branch 5 to be replaced, and after a preset time, turns off the solenoid valve on the low-pressure side of the capillary tube adjusting branch 5 to be replaced.
The capillary adjusting branch circuit is automatically started or replaced by the electromagnetic valve for throttling through a control program in the controller, the electromagnetic valve acts quickly, the speed of starting or replacing the capillary adjusting branch circuit is increased, and development and debugging are facilitated.
In this embodiment, each capillary adjusting branch 5 further includes a first detachable stop valve 9 and a second detachable stop valve 10, and the first detachable stop valve 9 and the second detachable stop valve 10 are respectively connected to two sides of the capillary 6 for detaching the capillary 6.
Specifically, the copper nano-tubes are welded on the two sides of the capillary tube 6 in advance, and the first detachable stop valve 9 and the second detachable stop valve 10 are provided with single joints, so that the capillary tube 6 is convenient to install or detach, the capillary tube 6 with other specifications is convenient to use, and the application range of the capillary tube adjusting device is widened.
In this embodiment, the capillary tubes 6 in the capillary tube adjusting branches 5 have different specifications, and different fluid adjusting effects are achieved by connecting different capillary tubes 6. The specifications of the capillary 6 include, for example, a capillary tube diameter and a capillary tube length. Taking the specification of the capillary 6 of 4.0 × 300 as an example, the capillary 6 has a tube diameter of 4.0mm and a length of 300 mm.
In this embodiment, each capillary adjustment leg 5 further includes a first branch tube 11 and a second branch tube 12. The first branch pipe 11 is used for guiding the fluid flowing into the capillary regulating module 1 to the capillary regulating branch 5 where the capillary regulating module is located; the second branch 12 serves to guide away the fluid of the capillary adjustment branch 5 in which it is located.
In this embodiment, each capillary adjusting branch 5 may be formed by sequentially connecting a first branch pipe 11, a first electromagnetic valve 7, a first detachable stop valve 9, a capillary 6, a second detachable stop valve 10, a second electromagnetic valve 8, and a second branch pipe 12, and each group of capillary adjusting branches 5 are connected in parallel to form the capillary adjusting module 1.
In this embodiment, the capillary tube adjustment device further includes a first temperature sensor 13 and a second temperature sensor 14. The first temperature sensor 13 is used for detecting a first temperature at one side of the capillary tube adjusting module 1, the second temperature sensor 14 is used for detecting a second temperature at the other side of the capillary tube adjusting module 1, and the controller 4 is further used for monitoring whether the fluid adjustment is abnormal or not according to the first temperature and the second temperature.
Further, the controller 4 is connected to a Personal Computer 17 (PC), for example, and the operation interface of the PC is shown in fig. 2, which shows the operation state of the capillary adjustment device, and furthermore, when a start or replacement button in the operation interface is clicked, a start instruction or a replacement instruction can be sent to the controller 4 to trigger the controller 4 to start or replace the capillary adjustment branch 5.
In this embodiment, the number of channels of the capillary adjustment branch 5 can be set according to the requirement, each channel can be used independently, and fig. 2 only shows five capillary adjustment branches 5. When the capillary adjusting branch 5 of any channel is switched on, the lamp of the corresponding channel is green, and when the capillary adjusting branch is switched off, the lamp of the corresponding channel is red. The specification is the pipe diameter and the length of the capillary 6, different specifications can be set independently for different channels, and a setting completion interface is popped up when the setting is completed. When the capillary tube adjusting device is started, the lamp displayed by communication is green, when the capillary tube adjusting device is in a replacement mode, the lamp displayed by communication is yellow, and if the capillary tube adjusting device is started or replaced abnormally, the lamp displayed by communication is red, and prompts 'communication fault, please check' to remind an operator to carry out fault check.
The capillary adjustment device of the present disclosure is further illustrated below by two specific examples.
The first embodiment is as follows:
referring to fig. 3, fig. 3 is a flowchart illustrating a start-up operation of a capillary tube adjusting device according to an embodiment of the present disclosure. As shown in fig. 3, the capillary adjustment device start-up operation includes operations S310 to S340.
In operation S310, the capillary adjustment device is powered on.
The capillary adjusting device can be connected with a power supply led out from a power supply cabinet in a laboratory, and can also be connected with a power supply from a power supply socket in a working condition room, and the power supply type is usually selected according to the electromagnetic valve and the power supply required by the controller 4.
In operation S320, the controller 4 turns on all the solenoid valves in the capillary tube adjusting module 1 according to the received start instruction.
Specifically, an operator clicks a start button of the PC display interface, and the controller 4 receives a corresponding start instruction, so as to switch on the first solenoid valves 7 and the second solenoid valves 8 in all the capillary adjusting branches 5 according to the start instruction, so that all the capillary adjusting branches 5 are pumped to a vacuum state.
In operation S330, the controller 4 determines whether the pressure on both sides of the capillary tube adjusting module 1 is less than a preset threshold.
The first pressure sensor 2 and the second pressure sensor 3 continuously detect the pressure on both sides of the capillary regulation module 1 and send the detected pressure to the controller 4. When the pressures at both sides of the capillary tube adjusting module 1 are less than the preset threshold, indicating that all the capillary tube adjusting branches 5 have been pumped to a vacuum state, performing operation S350; otherwise, the first pressure sensor 2 and the second pressure sensor 3 continuously detect the pressures at the two sides of the capillary tube adjusting module 1, and send the detected pressures to the controller 4 until the pressures at the two sides of the capillary tube adjusting module 1 are both smaller than the preset threshold value. In this embodiment, the preset threshold is, for example, 6 Pa.
In operation S340, the controller 4 turns on one set of capillary adjustment branches 5 and turns off the capillary adjustment branches 5 of the other channels.
In this embodiment, the specification of the capillary 6 in each channel can be read through the PC display interface, so as to determine whether the capillary 6 has been set. When the capillary tube 6 is set, the controller 4 defaults to connect the capillary tube adjusting branch 5 of the channel No. 1 and to cut off the capillary tube adjusting branches 5 of other channels, so that the capillary tube adjusting device is started.
Example two:
referring to fig. 4, fig. 4 is a flow chart illustrating a process of replacing a capillary tube of a capillary tube adjusting device according to an embodiment of the disclosure. As shown in fig. 4, the capillary tube adjusting means replacing the capillary tube includes operations S410 to S460.
In operation S410, the controller 4 switches on the capillary adjustment branch 5 of another channel according to the received replacement command.
Specifically, the operator clicks a replacement button on the PC display interface, and the controller 4 receives a corresponding replacement command, so as to switch on the capillary adjustment branch 5 of another channel, for example, the capillary adjustment branch 5 of channel No. 2, according to the replacement command.
In operation S420, the controller 4 detects whether the number of channels of the capillary regulating branch 5 in the on state is abnormal.
The controller 4 detects whether the capillary adjusting branches 5 of the three channels are simultaneously connected, if so, the number of channels of the capillary adjusting branches 5 in the connected state is abnormal, and operation S430 is performed, otherwise, the number of channels of the capillary adjusting branches 5 in the connected state is normal, and operation S440 is performed.
In operation S430, the controller 4 turns off the capillary regulating branch 5 that is abnormally turned on. In particular, the controller 4 switches off the capillary regulating branch 5 of the third channel which has been switched on.
In operation S440, the controller 4 turns off the solenoid valve on the high pressure side of the capillary regulating branch 5 to be replaced.
In this embodiment, for example, the capillary tube adjusting device is connected to the outdoor unit of the air conditioner on the side of the first pressure sensor 2, and is connected to the indoor unit of the air conditioner on the side of the second pressure sensor 3, when the first pressure detected by the first pressure sensor 2 is not less than 2MPa, the high-pressure side of the capillary tube adjusting branch 5 to be replaced is the side connected to the first pressure sensor 2, and when the first pressure detected by the first pressure sensor 2 is less than 2MPa, the high-pressure side of the capillary tube adjusting branch 5 to be replaced is the side connected to the second pressure sensor 3.
In operation S450, the controller 4 determines whether the turn-off time of the high-pressure side solenoid valve of the capillary adjusting branch 5 to be replaced reaches a preset value.
The refrigerant in the capillary adjustment branch 5 to be replaced will be carried away under pressure difference to maintain a stable amount of refrigerant flowing out of the capillary adjustment device.
When the turn-off time of the high-pressure side electromagnetic valve of the capillary adjusting branch 5 to be replaced reaches a preset value, operation S460 is executed, otherwise, whether the turn-off time of the high-pressure side electromagnetic valve of the capillary adjusting branch 5 to be replaced reaches the preset value is continuously judged, so that leakage and waste of the refrigerant in the capillary adjusting branch to be replaced are avoided. In this embodiment, the preset value is, for example, 3 minutes.
In operation S460, the solenoid valve on the low-pressure side of the capillary regulating branch 5 to be replaced is turned off.
Fig. 5 is a flowchart of a method for controlling the capillary adjustment device in the embodiment shown in fig. 1 according to another embodiment of the present disclosure. As shown in fig. 5, the control method includes operations S510-S530.
In operation S510, the first pressure sensor 2 detects a first pressure at one side of the capillary regulation module 1.
In operation S520, the second pressure sensor 3 detects a second pressure at the other side of the capillary regulation module 1.
In operation S530, the controller 4 controls the capillary regulating branch 5 according to the first pressure and the second pressure to perform fluid regulation.
The control method of the capillary tube adjusting device is the same as the advantages of the capillary tube adjusting device relative to the prior art, and the detailed description is omitted here.
When the capillary tube adjustment device is in the replacement mode, the control method further comprises: the controller 4 shuts off the high-pressure side of the capillary adjusting branch 5 to be replaced according to the first pressure and the second pressure; after a preset time, the controller 4 switches off the low-pressure side of the capillary regulating branch 5 to be replaced.
In this embodiment, when the capillary tube adjusting device is in the replacement mode, the specific operation of the control method is the same as that in the first embodiment, and is not described herein again.
Further, the control method can also control the start of the capillary tube adjusting device, and the specific operation is the same as that in the second embodiment, which is not described herein again.
Fig. 6 is a schematic structural diagram of an air conditioner according to another embodiment of the present disclosure. Referring to fig. 6, the air conditioner includes the capillary tube adjusting device, the outdoor unit 15, and the indoor unit 16 in the embodiment shown in fig. 1.
The outdoor unit 15 is connected with the side of the capillary tube adjusting device where the first branch tube 11 is; the indoor unit 16 is connected to the side of the capillary tube adjusting device where the second branch tube 12 is located. The fluid between the outdoor unit 15 and the indoor unit 16 can be controlled by controlling the capillary tube adjusting device.
For details that are not described in the present embodiment, please refer to the embodiment shown in fig. 1, which will not be described herein.
In summary, according to the capillary tube adjusting device, the capillary tube adjusting method and the air conditioner provided by the embodiments of the present disclosure, the capillary tube adjusting branch is automatically started or replaced by the electromagnetic valve for fluid adjustment through the control program, the capillary tube adjusting branch does not need to be manually started or replaced, the operation complexity is reduced, leakage and waste of refrigerant in the capillary tube adjusting branch to be replaced are avoided, the speed of starting or replacing the capillary tube adjusting branch is increased, and development and debugging are facilitated.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A capillary adjustment device, characterized in that the device comprises:
the capillary adjusting module (1) consists of one or more groups of capillary adjusting branches (5);
a first pressure sensor (2) for detecting a first pressure on one side of the capillary tube regulation module (1);
the second pressure sensor (3) is used for detecting a second pressure on the other side of the capillary tube adjusting module (1);
a controller (4) for controlling the capillary regulating branch (5) for fluid regulation according to the first and second pressures;
the controller (4) is also used for switching off the high-pressure side of the capillary adjusting branch (5) to be replaced according to the first pressure and the second pressure, and switching off the low-pressure side of the capillary adjusting branch (5) to be replaced after preset time.
2. Capillary adjustment device according to claim 1, characterized in that each capillary adjustment branch (5) comprises:
a capillary tube (6) for fluid conditioning;
a first solenoid valve (7) disposed on one side of the capillary tube (6);
a second solenoid valve (8) disposed at the other side of the capillary tube (6);
the controller (4) is also used for controlling the first solenoid valve (7) and the second solenoid valve (8) according to the first pressure and the second pressure so as to gate the corresponding capillary tube (6) for fluid regulation.
3. Capillary adjustment device according to claim 2, characterized in that each capillary adjustment branch (5) further comprises:
a first removable stop valve (9);
the stop valve (10) can be dismantled to the second, first stop valve (9) can be dismantled and stop valve (10) can be dismantled to the second is connected respectively the both sides of capillary (6) are used for dismantling capillary (6).
4. Capillary adjustment device according to claim 2, characterized in that the specifications of the capillaries (6) in different capillary adjustment branches (5) differ.
5. Capillary adjustment device according to claim 1, characterized in that each capillary adjustment branch (5) comprises:
a first branch (11) for conducting the fluid flowing into the capillary regulating module (1) to the capillary regulating branch (5) in which it is located;
a second branch (12) for conducting away the fluid of the capillary control branch (5) in which it is located.
6. The capillary adjustment device of claim 1, further comprising:
a first temperature sensor (13) for detecting a first temperature on one side of the capillary tube regulation module (1);
a second temperature sensor (14) for detecting a second temperature on the other side of the capillary tube regulation module (1);
the controller (4) is further configured to monitor the fluid regulation based on the first and second temperatures.
7. A method of controlling a capillary adjustment device according to any one of claims 1-6, characterized in that the method comprises:
the first pressure sensor (2) detects a first pressure at one side of the capillary tube adjusting module (1);
the second pressure sensor (3) detects a second pressure on the other side of the capillary tube adjusting module (1);
the controller (4) controls the capillary adjusting branch (5) according to the first pressure and the second pressure so as to carry out fluid adjustment;
the controller (4) cuts off the high-pressure side of the capillary adjusting branch (5) to be replaced according to the first pressure and the second pressure; after a preset time, the controller (4) shuts off the low-pressure side of the capillary adjusting branch (5) to be replaced.
8. An air conditioner, characterized in that the air conditioner comprises:
a capillary adjustment device as claimed in any one of claims 1 to 6;
an outdoor unit (15) connected to the side of the capillary tube adjusting device where the first branch tube (11) is located;
and the indoor unit (16) is connected with the side of the second branch pipe (12) of the capillary tube adjusting device.
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| CN202010019924.1A CN111189266B (en) | 2020-01-08 | 2020-01-08 | Capillary tube adjusting device, control method and air conditioner |
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| CN202010019924.1A CN111189266B (en) | 2020-01-08 | 2020-01-08 | Capillary tube adjusting device, control method and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| IT1268893B1 (en) * | 1994-12-21 | 1997-03-13 | Carpigiani Group Ali Srl | COMBINED MACHINE FOR THE ALTERNATIVE PRODUCTION OF GRANITE OR GELATO. |
| CN201666699U (en) * | 2010-01-25 | 2010-12-08 | 珠海格力电器股份有限公司 | Apparatus of air conditioner for matching capillary tubes |
| CN202581974U (en) * | 2012-03-19 | 2012-12-05 | 宁波奥克斯电气有限公司 | Capillary tube regulating box for air conditioner |
| CN202813922U (en) * | 2012-10-08 | 2013-03-20 | 苟仲武 | Electromagnetic type combined throttling gear and refrigeration system thereof |
| CN203719044U (en) * | 2014-01-24 | 2014-07-16 | 广东志高空调有限公司 | Conditioning system adaptive to working condition changes of air conditioner |
| CN203744624U (en) * | 2014-02-20 | 2014-07-30 | 广东志高暖通设备股份有限公司 | Air-conditioning system for experiment and capillary tube assembly of air-conditioning system |
| CN205536643U (en) * | 2016-04-27 | 2016-08-31 | 合肥美菱股份有限公司 | Frequency conversion refrigerator refrigerating system of variable flow |
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