CN117760132A - Pipeline structure, multi-split system, control method and computer readable storage medium - Google Patents
Pipeline structure, multi-split system, control method and computer readable storage medium Download PDFInfo
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- CN117760132A CN117760132A CN202311796583.9A CN202311796583A CN117760132A CN 117760132 A CN117760132 A CN 117760132A CN 202311796583 A CN202311796583 A CN 202311796583A CN 117760132 A CN117760132 A CN 117760132A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003860 storage Methods 0.000 title claims abstract description 13
- 239000003507 refrigerant Substances 0.000 claims abstract description 99
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 230000002159 abnormal effect Effects 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 8
- 230000005856 abnormality Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 231100000206 health hazard Toxicity 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
Abstract
The invention discloses a pipeline structure, a multi-split system, a control method and a computer readable storage medium, wherein a plurality of internal machines are divided into different internal machine combinations, a main inlet pipe and a main outlet pipe of an external machine are branched into a plurality of groups of branch main inlet pipes and branch main outlet pipes which are correspondingly connected with each internal machine combination, the branch main inlet pipes and the branch main outlet pipes of each internal machine combination are branched into a plurality of groups of branch main inlet pipes and branch main outlet pipes which are correspondingly connected with each internal machine combination, a switch valve is arranged on the branch main inlet pipes and the branch main outlet pipes of each internal machine combination, and a refrigerant detection sensor is arranged corresponding to one internal machine in each internal machine combination. According to the invention, the switch valve is arranged on the branch main inlet pipe and the branch main outlet pipe of each internal machine combination, when the internal machine in the internal machine combination is detected by the refrigerant detection sensor to leak refrigerant, the switch valve is arranged on the branch main inlet pipe and the branch main outlet pipe of the internal machine combination to enable the internal machine combination to independently stop running, so that the refrigerant is prevented from further leaking.
Description
Technical Field
The present invention relates to the field of air conditioning technologies, and in particular, to a pipeline structure, a multi-split system, a control method, and a computer readable storage medium.
Background
Refrigerant is indispensable in multi-split air conditioning system operation, and multi-split air conditioning system is because factor influences such as environmental factor or pipeline welding bad in the use, and the unit is likely to take place refrigerant leakage in the use, and a small amount of leakage easily can cause the condition that does not refrigerate or refrigeration effect is poor, influences the unit reliability.
However, as the refrigerant connecting pipe of the multi-split air conditioner unit system is long, the number of internal machines is large, the refrigerant filling amount of the air conditioner unit is large, and once the inside of the air conditioner unit or the connecting pipe part is abnormal, when refrigerant leakage occurs, all refrigerants in the multi-split air conditioner unit are easy to leak to a certain room where abnormal parts of pipelines are located. The relatively airtight space of the indoor room is easy to cause great health hazard to people.
At present, two schemes are mainly adopted for detecting and treating the leakage of the refrigerant: each internal unit in the multi-split system detects the leakage condition of the refrigerant in the room, and once the refrigerant leaks, the front end stop valve of the internal unit is closed. The other scheme is that a main pipe stop valve is additionally arranged on the outdoor unit side, refrigerant leakage detection is additionally arranged in each indoor space, once refrigerant leakage is detected in a certain room, the main pipe stop valve on the outdoor unit side is closed, the main pipe stop valve is high in type selection requirement, and once the certain room is leaked, the whole system cannot be used, so that the use of a user is influenced.
Disclosure of Invention
The invention provides a pipeline structure, a multi-split system, a control method and a computer readable storage medium, and aims to solve the technical problem that in the prior art, the throttling cost is high when refrigerant of the multi-split system leaks.
The technical scheme adopted by the invention is as follows:
the invention provides a pipeline structure of a multi-split system, which comprises an external machine and a plurality of internal machines, and is characterized in that the internal machines are divided into different internal machine combinations, and the pipeline structure comprises: the main inlet pipe and the main outlet pipe of the outer machine are connected, the main inlet pipe and the main outlet pipe are branched into a plurality of branch main inlet pipes and branch main outlet pipes which are correspondingly connected with each inner machine combination, the branch main inlet pipe and the branch main outlet pipe of each inner machine combination are branched into a plurality of branch inlet pipes and branch outlet pipes which are correspondingly connected with each inner machine in each inner machine combination, the branch main inlet pipe and the branch main outlet pipe of each inner machine combination are provided with switch valves, and a refrigerant detection sensor is arranged in a region where one inner machine in each inner machine combination is located.
Specifically, an electronic expansion valve is arranged on a branch inlet pipe of each internal machine.
Further, each internal machine is correspondingly provided with two Y-shaped branch pipes, each Y-shaped branch pipe comprises a branch trunk pipe and a branch pipe connected to the branch trunk pipe, each branch pipe is used as a branch inlet pipe or a branch outlet pipe, and the branch trunk pipes are sequentially connected to form a branch main inlet pipe or a branch main outlet pipe.
Furthermore, the opening and closing valves are arranged at the inlet ends of branch main pipes of Y-shaped branch pipes of the first internal machine of each internal machine combination.
The invention also provides a multi-split system comprising the pipeline structure.
Further, the main board of any one of the internal units in each internal unit combination is connected with the refrigerant detection sensor and the switch valve.
The invention also provides a refrigerant leakage interception control method, which uses the multi-split system and comprises the following steps:
when the refrigerant detection sensor of any one of the inner machines detects that the refrigerant concentration of the area where the refrigerant detection sensor is positioned is greater than or equal to the preset concentration, the on-off valve of the inner machine combination corresponding to the inner machine is controlled to be closed, and an alarm signal is sent.
When the inner machine without the refrigerant sensor receives an alarm signal sent by the inner machine with the refrigerant sensor in the inner machine combination, the inner machine without the refrigerant sensor in the inner machine combination is closed and alarms.
When the external machine receives an alarm signal sent by the internal machine, judging that the internal machine combination where the internal machine is positioned is abnormal, and calculating the total rated capacity of the internal machine combination, which is shut down due to the abnormality; and when the total rated capacity of the shutdown internal machine combination is larger than the preset rated capacity, controlling the shutdown of the whole machine.
The closing of the inner machine without the refrigerant sensor in the inner machine combination is specifically to close an electronic expansion valve of the inner machine without the refrigerant sensor in the inner machine combination.
The invention also provides a computer readable storage medium for storing a computer program, and the computer program executes the refrigerant leakage shutoff control method when running.
Compared with the prior art, the invention has the advantages that the switch valve is arranged on the branch main inlet pipe and the branch main outlet pipe of each internal machine combination, when the internal machines in the internal machine combination are detected by the refrigerant detection sensor to leak refrigerant, the switch valve is arranged on the branch main inlet pipe and the branch main outlet pipe of the internal machine combination to enable the internal machine combination to independently stop running, so that the refrigerant is prevented from further leaking, and meanwhile, the internal machines of other internal machine combinations can still keep running under the condition of conforming to the rated working condition. Because the number of the refrigerant detection sensors and the number of the internal units of the switch are reduced, the operation cost can be effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram of a pipeline structure in an embodiment of the present invention;
FIG. 2 is a flow chart of an embodiment of the present invention;
FIG. 3 is a control flow chart of the combination of the internal units in the embodiment of the invention;
FIG. 4 is a control flow diagram of an embodiment of the present invention;
FIG. 5 is a control flow diagram of a single internal machine combination in an embodiment of the present invention;
FIG. 6 is a control connection block diagram in an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The principles and structures of the present invention are described in detail below with reference to the drawings and the examples.
As the refrigerant connecting pipe of the multi-split unit system is long, the number of internal units is large, and the refrigerant filling amount of the unit is large, once the inside of the unit or the connecting pipe part is abnormal, when refrigerant leakage occurs, all refrigerants in the multi-split unit are easy to leak to a certain room where the abnormal part of the pipeline is located. The relatively airtight space of the indoor room is easy to cause great health hazard to people.
At present, two schemes are mainly adopted for detecting and treating the leakage of the refrigerant: each internal unit in the multi-split system detects the leakage condition of the refrigerant in the room, and once the refrigerant leaks, the front end stop valve of the internal unit is closed. The other scheme is that a main pipe stop valve is additionally arranged on the outdoor unit side, refrigerant leakage detection is additionally arranged in each indoor space, once refrigerant leakage is detected in a certain room, the main pipe stop valve on the outdoor unit side is closed, the main pipe stop valve is high in type selection requirement, and once the certain room is leaked, the whole system cannot be used, so that the use of a user is influenced.
In this regard, the invention provides a pipeline structure of a multi-split system and refrigerant leakage throttling control of the multi-split system adopting the pipeline structure, and the inner machine of the multi-split system is divided into groups, and then the refrigerant leakage condition of each group is independently detected, so that when the refrigerant leakage is detected, the pipeline can be accurately stopped, and more refrigerant leakage is prevented. While ensuring as much as possible that normal equipment can still be used.
As shown in fig. 1 and 6, the present invention provides a pipeline structure of a multi-split system, i.e., the multi-split system includes an external unit and a plurality of internal units, the plurality of internal units are divided into different internal unit combinations (specifically, all internal units may be divided into internal unit combinations, or part of internal units may be divided into internal unit combinations, and the rest part of internal unit combinations are not divided into internal unit combinations and remain in the original state), the multiple internal units in the same internal unit combination may be located in the same room, a total inlet pipe and a total outlet pipe of the external unit are branched into a plurality of branch total inlet pipes and branch total outlet pipes which are correspondingly connected to each internal unit combination, and the branch total inlet pipe and the branch total outlet pipe of each internal unit combination are branched into a plurality of branch inlet pipes and branch outlet pipes which are correspondingly connected to each internal unit in each internal unit combination, and a switch valve is provided at an inlet end of each internal unit combination, and a detection sensor is provided corresponding to a region where one internal unit in each internal unit combination is located.
Through setting up the ooff valve on branch road total inlet tube and the branch road total outlet tube of every internal machine combination, when the internal machine in this internal machine combination is detected by its refrigerant detection sensor and is taken place refrigerant and reveal, set up the ooff valve on the branch road total inlet tube and the branch road total outlet tube of this internal machine combination of direct closure, make this internal machine combination stop alone, avoid refrigerant to reveal further, the internal machine of other internal machine combinations still can keep running under the condition that accords with rated condition simultaneously. Because the number of the refrigerant detection sensors and the number of the internal units of the switch are reduced, the operation cost can be effectively reduced.
Specifically, an electronic expansion valve is arranged on a branch inlet pipe of each internal machine of the multi-connection system, and when the internal machines are stopped due to refrigerant leakage, the electronic expansion valves are synchronously closed to prevent the refrigerant from further leakage.
In a specific embodiment, as shown in fig. 1, each internal machine is correspondingly provided with two Y-shaped branch pipes, namely, two Y-shaped branch pipes are respectively used for an inlet pipe and an outlet pipe, for convenience of description, each Y-shaped branch pipe comprises a branch main pipe and a branch pipe connected to a branch trunk pipe, the branch pipe is used as a branch inlet pipe or a branch outlet pipe (two Y-shaped branch pipes, one of which is used as a branch inlet pipe, and the other is used as a branch outlet pipe), and the branch trunk pipes are sequentially connected to form a branch total inlet pipe or a branch total outlet pipe (two Y-shaped branch pipes, one of which forms a branch total inlet pipe, and the other forms a branch total outlet pipe).
In a specific embodiment, the inlet end of the branching main pipe of the Y-shaped branching pipe of the first internal machine of each internal machine combination is provided with a switch valve, namely, for the first Y-shaped branching pipe of the group, such as Fi Air flow 、Fi Liquid and its preparation method Two-way valves, e.g. Vi, are mounted at the inlets thereof, respectively Air flow 、Vi Liquid and its preparation method And is controlled by the internal machine i nearest to the two-way valve.
And the main board of any one of the internal machines of each internal machine combination is connected with the refrigerant detection sensor and the switch valve, so that the control is convenient. Particularly, the air conditioner is placed on a proper indoor unit according to actual needs, such as the indoor unit with poor ventilation condition and relative closed space.
The invention also provides a multi-split system which comprises the pipeline structure, and particularly comprises an external machine and a plurality of internal machines in a one-to-many mode.
Specifically, the connection mode of the internal and external pipelines of the multi-split air conditioner system adopts a Y-shaped branch pipe. For convenience of description, the transverse connecting pipeline of the Y-shaped branch pipe in the figure is called a trunk; the connecting pipeline connected downwards with the internal machine is called a branch, if the rear of the main road is not connected with another Y-shaped branch pipe, the branch is connected with one internal machine, and the internal machine is called the last internal machine of the system, such as an internal machine n in the figure.
For the first Y-branch of packets, e.g. Fi Air flow 、Fi Liquid and its preparation method At its inletRespectively mounting two-way valves, e.g. Vi Air flow 、Vi Liquid and its preparation method And controlled by the internal machine i nearest to the two-way valve, e.g. two-way valve Vi Air flow 、Vi Liquid and its preparation method Is controlled by the internal machine i.
As shown in fig. 2, the present invention further provides a refrigerant leakage shutoff control method, using the multi-split system, comprising the steps of:
the unit operates, and the refrigerant concentration of the corresponding area is detected by the refrigerant detection sensor;
if the refrigerant detection sensor of any one of the internal machines detects that the refrigerant concentration in the area where the refrigerant detection sensor is positioned is more than or equal to the preset concentration A%, the on-off valve of the internal machine combination corresponding to the internal machine is controlled to be closed, and an alarm signal is sent.
If the refrigerant detection sensor of the inner unit detects that the refrigerant concentration of the area where the inner unit is positioned is smaller than the preset concentration A%, the inner unit where the inner unit is positioned is kept in a communicated state, and the multi-split system keeps normal operation.
The detection is carried out through the subareas and the interception is carried out through the subareas, and the on-off valve of the internal machine combination where the controller is positioned is directly removed only through one internal machine, so that the control flow is simplified, and the normal operation of the internal machine combination in other areas is not influenced.
As shown in fig. 3, when the inner machine without the refrigerant sensor receives the alarm signal sent by the inner machine with the refrigerant sensor in the inner machine combination, the inner machine without the refrigerant sensor in the inner machine combination is closed and alarms.
The alarm signal is synchronously sent to other internal machines through one internal machine of the internal machine combination, so that the other internal machines in the internal machine combination are also closed and alarm-prompted at the same time, and the setting of the reduced control modules is realized by only using the original control modules of each internal machine.
As shown in fig. 4, when the external machine receives an alarm signal sent by the internal machine, determining that the internal machine combination where the internal machine is located is abnormal, and calculating the total rated capacity of the internal machine combination, which is shut down due to the occurrence of the abnormality; and when the total rated capacity of the shutdown internal machine combination is larger than the preset rated capacity, controlling the shutdown of the whole machine.
When the external machine receives the alarm signal, the external machine can directly judge that the refrigerant leakage occurs in the internal machine, and the total rated capacity of the internal machine combination which is shut down due to the occurrence of abnormality is calculated, so that the rest internal machine combination is judged to continuously meet the requirement of rated capacity to continue to operate, and the equipment failure caused by forced operation of the multi-split machine set is avoided.
As shown in fig. 5, a specific mounting and control embodiment is as follows:
1. demarcating the group;
for example, the internal machine i is divided into an internal combination group for a certain station, and the internal combination group contains the internal machine i, the internal machine a, the internal machine n and the like.
The internal machine j is a certain group divided into an internal machine group j, and the internal machine group j comprises the internal machine j, the internal machine k, the internal machine m and the like.
The specific division can be through regional division, for example, an internal machine combination can be used for refrigerating or heating a room in the same room.
2. The refrigerant detection sensor is installed on any one of the internal machines of each internal machine Group, and the control of the switch valve is also controlled by the control module of the first internal machine, for example, the refrigerant detection sensor is installed on the internal machine i of the internal machine Group.
3. Any one of the internal machines of each internal machine combination Group acquires the refrigerant concentration detected by the refrigerant detection sensor in real time, and judges whether the refrigerant concentration is greater than or equal to a preset concentration, for example, the refrigerant detection sensor installed on the internal machine i of the internal machine combination Group detects the refrigerant concentration in the area where the refrigerant detection sensor is installed, and judges whether the refrigerant concentration is greater than or equal to the preset concentration, if yes, two switch valves (namely, two-way valves Vi) controlled by the internal machine i are closed Air flow 、Vi Liquid and its preparation method ) Cutting off the combined group pi of the internal machine, and sending alarm signals to the external machine and other internal machines in the combined group pi of the internal machine; if not, the refrigerant concentration is continuously detected.
4. Judging whether the other internal machines of each internal machine combination Group receive an alarm signal sent by any internal machine of the internal machine combination Group in which the other internal machines are positioned, if so, powering off the other internal machines of the internal machine combination Group and giving an alarm prompt, and particularly closing the corresponding electronic expansion valve; if not, the rest of the internal machines of the internal combination Group continue to operate.
5. The method comprises the steps that after an external machine receives an alarm signal, the internal machine which sends the alarm signal is judged to be abnormal, the total capacity of the internal machines which are abnormal in the internal machine combination Group is calculated, if the total capacity of the internal machines which are abnormal in the internal machine combination Group is larger than a preset rated capacity, namely a is multiplied by the rated capacity of all the internal machines, and a is smaller than or equal to 1, the multi-split system is stopped; if the total capacity of the internal unit with abnormal internal unit Group is smaller than or equal to the preset rated capacity, the abnormal internal unit Group and the outdoor unit are kept running.
Specifically, the value of a can be set according to the requirement, for example, 0.5, and the whole machine is stopped directly when more than half of the internal machines are abnormal.
The specific control mode is as follows:
grouping configuration: and (3) according to the mounting positions and modes of the refrigerant pipes and the branch pipes, simultaneously defining a grouping area and an internal machine according to the needs of users. And setting a corresponding internal machine group at a man-machine interaction end (such as a line controller) of the internal machine, simultaneously setting a corresponding internal machine to control a two-way valve of the branch pipe, and setting a corresponding internal machine to detect the refrigerant leakage state of the area.
Detecting and alarming: when the refrigerant concentration in the room is detected by the corresponding refrigerant detection sensor in the indoor unit combination to be less than A%, judging that the refrigerant is not leaked, and when the refrigerant is not leaked, opening a two-way valve correspondingly controlled by the indoor unit, wherein the refrigerant can circulate in a pipeline, and the multi-split air conditioner system can perform normal refrigeration or heating operation; when the corresponding refrigerant detection sensors in the group detect that the concentration of the refrigerant in the room is more than or equal to A%, judging that the refrigerant leaks. At this time, the internal machine i gives an alarm in the group in real time, and immediately closes the two-way valves Vi gas and Vi liquid in the manifold in the group. And simultaneously notifying all internal organs in the group, closing the internal liquid pipe electronic expansion valve and simultaneously giving out a leakage alarm. (for example, if refrigerant leakage is detected in the combined space of the internal units i, the internal unit i closes the two-way valves of Vi gas and Vi liquid, and simultaneously closes all the internal unit electronic expansion valves of the internal units i to n, and all the internal units i to n are shut down.)
And (3) complete machine treatment: when a certain Group has refrigerant leakage and gives an alarm to shut down, the outdoor unit detects the number of the indoor units and the corresponding refrigerating capacity in real time. If the rated capacity of the internal machine is larger than a, the rated capacities of all the internal machines (a is smaller than or equal to 1) (for example, a is 50% -100%), the whole machine is stopped. Otherwise, the whole machine continues to operate.
And (5) recovering operation: after the refrigerant leakage problem is repaired and recovered, the relevant switch valve and the internal machine electronic expansion valve are opened, and the unit is recovered to operate.
The invention also provides a computer readable storage medium for storing a computer program, and the method for controlling refrigerant leakage and interception is executed when the computer program runs.
In one or more exemplary embodiments, the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software as a computer program product, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a web site, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. Disk (disk) and disc (disk) as used herein include Compact Disc (CD), laser disc, optical disc, digital Versatile Disc (DVD), floppy disk and blu-ray disc where disks (disk) usually reproduce data magnetically, while discs (disk) reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.
It is noted that the above-mentioned terms are used merely to describe specific embodiments, and are not intended to limit exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a pipeline structure of many online systems, many online systems includes outer machine and many internal machines, its characterized in that, many the internal machine is divided into different internal machine combinations, pipeline structure includes: the main inlet pipe and the main outlet pipe of the outer machine are connected, the main inlet pipe and the main outlet pipe are branched into a plurality of branch main inlet pipes and branch main outlet pipes which are correspondingly connected with each inner machine combination, the branch main inlet pipe and the branch main outlet pipe of each inner machine combination are branched into a plurality of branch inlet pipes and branch outlet pipes which are correspondingly connected with each inner machine in each inner machine combination, the branch main inlet pipe and the branch main outlet pipe of each inner machine combination are provided with switch valves, and a refrigerant detection sensor is arranged in a region where one inner machine in each inner machine combination is located.
2. The piping structure of the multiple on-line system according to claim 1, wherein an electronic expansion valve is provided on a branch inlet pipe of each of the internal machines.
3. The system of claim 1, wherein each of the internal machines is provided with two Y-shaped branch pipes, each of the Y-shaped branch pipes comprises a branch trunk pipe and a branch pipe connected to the branch trunk pipe, the branch pipe is used as the branch inlet pipe or the branch outlet pipe, and the branch trunk pipes are sequentially connected to form the branch inlet pipe or the branch outlet pipe.
4. A duct structure of a multiple on-line system as defined in claim 3, wherein the on-off valve is provided at an inlet end of a branch trunk of a Y-branch pipe of a first one of the indoor units of each of the indoor unit combinations.
5. A multi-split system comprising a duct structure as claimed in any one of claims 1 to 4.
6. The multi-split system according to claim 5, wherein a main board of any one of the indoor units in each of the indoor unit combinations is connected to the refrigerant detection sensor and the on-off valve.
7. A refrigerant leakage shutoff control method, characterized in that the multi-split system of any one of claims 5 or 6 is used, comprising the steps of:
when the concentration of the refrigerant detected by the refrigerant detection sensor of any one of the inner machines is larger than or equal to the preset concentration, the on-off valve of the inner machine combination corresponding to the inner machine is controlled to be closed, and an alarm signal is sent.
8. The refrigerant leakage shutoff control method of claim 7, wherein when an inner machine which is not provided with a refrigerant sensor in the inner machine combination receives an alarm signal sent by an inner machine which is provided with the refrigerant sensor in the inner machine combination, the inner machine which is not provided with the refrigerant sensor in the inner machine combination is closed and an alarm prompt is given.
9. The refrigerant leakage interception control method according to claim 7, wherein when the external machine receives an alarm signal sent by the internal machine, the internal machine is judged to be abnormal, and the total rated capacity of the internal machine combination in which the abnormality occurs to cause shutdown is calculated; and when the total rated capacity of the shutdown internal machine combination is larger than the preset rated capacity, controlling the shutdown of the whole machine.
10. A computer-readable storage medium storing a computer program, wherein the computer program, when run, performs the refrigerant leakage shutoff control method of any of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202311796583.9A CN117760132A (en) | 2023-12-25 | 2023-12-25 | Pipeline structure, multi-split system, control method and computer readable storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311796583.9A CN117760132A (en) | 2023-12-25 | 2023-12-25 | Pipeline structure, multi-split system, control method and computer readable storage medium |
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| CN117760132A true CN117760132A (en) | 2024-03-26 |
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| CN202311796583.9A Pending CN117760132A (en) | 2023-12-25 | 2023-12-25 | Pipeline structure, multi-split system, control method and computer readable storage medium |
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| Country | Link |
|---|---|
| CN (1) | CN117760132A (en) |
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2023
- 2023-12-25 CN CN202311796583.9A patent/CN117760132A/en active Pending
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