CN109539472B - Target sheet type water flow switch, cooling machine, control method, equipment and medium - Google Patents
Target sheet type water flow switch, cooling machine, control method, equipment and medium Download PDFInfo
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- CN109539472B CN109539472B CN201811180128.5A CN201811180128A CN109539472B CN 109539472 B CN109539472 B CN 109539472B CN 201811180128 A CN201811180128 A CN 201811180128A CN 109539472 B CN109539472 B CN 109539472B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Fluid Mechanics (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Flow Control (AREA)
Abstract
The invention provides a target sheet type water flow switch, a cooler, a control method, equipment and a medium. Wherein, this target formula water flow switch includes: the device comprises a control device, a target and a target length adjusting mechanism, wherein the target is connected with the target length adjusting mechanism; the target length adjusting mechanism is electrically connected with the control device and is used for adjusting the length of the target under the control of the control device. By the method and the device, the problem that the operation of the cooling machine is unstable due to the fact that the water flow switch is easy to carry out false alarm protection is solved, the effect of reducing the false alarm protection of the water flow switch can be achieved, and the operation stability of the cooling machine is improved.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to a target sheet type water flow switch, a cooler, a control method, equipment and a medium.
Background
A water flow switch, also called a flow switch, is a sensing device that is turned on and off to generate a switching electrical signal when water flow reaches a certain threshold. The basic structure of the target sheet type water flow switch is two metal target sheets which are parallel to each other. When the target sheet type water flow switch works, the target sheet is directly inserted into the pipeline, and when the target sheet is impacted by fluid to a certain degree, the two target sheets are contacted with each other, so that the control circuit is closed.
The water flow switch is widely applied to water systems of water chilling units and air conditioning engineering, and can ensure safe and efficient operation of the air conditioning system. Generally, when the water flow switch is applied, the safety and high-efficiency operation of an air conditioning system can be guaranteed only qualitatively, and the flow value when the water flow switch is switched on and off cannot be set quantitatively and accurately. For example, in a cooling unit, a water flow switch is used to protect the cooling unit.
In the research process, a water flow switch is added at a water outlet of a cooling machine when a cooling medium of the cooling machine set is water, and the water flow switch is used for protecting the cooling machine when the water flow is insufficient or a water channel is blocked, but the situation of false alarm protection of the water flow switch often occurs due to small flow of some cooling machines, small pipeline of the cooling machine set and compact structure, and the cooling machine is shut down for protection after the false alarm protection, so that the cooling machine set cannot be normally used; in order to avoid the shutdown of the cooling unit due to frequent false alarm protection, a customer may short-circuit the water flow switch and shield the water flow switch protection function. In this case, the safety of the cooler cannot be ensured; but the water flow switch can influence the use of customers if not shielded.
Disclosure of Invention
The invention provides a target sheet type water flow switch, a cooling machine, a control method, equipment and a medium, which at least solve the problem that the operation of the cooling machine is unstable due to the fact that the water flow switch is easy to falsely report and protect in the related technology.
In a first aspect, an embodiment of the present invention provides a target type water flow switch, including: a control device, a target and a target length adjusting mechanism, wherein,
the target sheet is connected with the target sheet length adjusting mechanism;
the target piece length adjusting mechanism is connected with the control device and is used for adjusting the length of the target piece under the control of the control device.
In a second aspect, embodiments of the present invention provide a cooling machine comprising a target sheet type water flow switch as described in the second aspect.
In a third aspect, an embodiment of the present invention provides a method for controlling a target sheet type water flow switch, where the method includes:
detecting the water inlet temperature and the water outlet temperature of the cooler;
calculating the flow of a water outlet pipe on a water outlet pipeline of the cooler according to the water inlet temperature, the water outlet temperature and the rated refrigerating capacity of the cooler in the current state;
judging whether the flow of the water outlet pipe is larger than a rated cutoff value of the water flow switch or not and whether the water flow switch is in a disconnected state or not;
and under the condition that the flow of the water outlet pipe is larger than the rated cutoff value of the water flow switch and the water flow switch is in an off state, increasing the length of the target plate until the water flow switch is closed.
In a fourth aspect, an embodiment of the present invention provides a control device for a target sheet type water flow switch, including: at least one processor, at least one memory, and computer program instructions stored in the memory that, when executed by the processor, implement the method of the third aspect.
In a fifth aspect, the present invention provides a computer-readable storage medium, on which computer program instructions are stored, which when executed by a processor implement the method of the third aspect.
The target sheet type water flow switch, the cooling machine, the control method, the equipment and the medium provided by the embodiment of the invention adopt the target sheet type water flow switch, and comprise the following steps: the device comprises a control device, a target and a target length adjusting mechanism, wherein the target is connected with the target length adjusting mechanism; the target length adjusting mechanism is electrically connected with the control device and is used for adjusting the length of the target under the control of the control device. The target piece type water flow switch with the adjustable target piece length solves the problem that the operation of a cooling machine is unstable due to the fact that the water flow switch is prone to false alarm protection, can achieve the effect of reducing false alarm protection of the water flow switch, and improves the operation stability of the cooling machine.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1a is a front view of a target water flow switch according to an embodiment of the present invention;
FIG. 1b is a side view of an attorney plate water flow switch according to an embodiment of the present invention;
FIG. 2 is a schematic view of the assembly of a target plate type water flow switch according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a control device according to an embodiment of the present invention;
FIG. 4 is a flow chart of a method of controlling a target plate water flow switch according to an embodiment of the present invention;
fig. 5 is a schematic hardware configuration diagram of a control device of a target water flow switch according to an embodiment of the invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In this embodiment, a target type water flow switch is provided, fig. 1a is a front view of the target type water flow switch according to an embodiment of the present invention, and fig. 1b is a side view of the drone type water flow switch according to an embodiment of the present invention, as shown in fig. 1a and 1b, the target type water flow switch includes: the device comprises a control device 1, a target sheet 2 and a target sheet length adjusting mechanism 3, wherein the target sheet 2 is connected with the target sheet length adjusting mechanism 3; the target length adjusting mechanism 3 is electrically connected to the control device 1, and the target length adjusting mechanism 3 is used for adjusting the length of the target 2 under the control of the control device 1.
Optionally, when the target sheet of the water flow switch works, the target sheet is inserted into the pipeline and is directly contacted with water, whether the water flow meets the requirement or not is detected, and when the water flow of the system is smaller than the cut-off value Q1 of the water flow switch, the water flow switch is switched off; when the water flow of the system is greater than a water flow switch closing value Q2, the water flow switch is closed; when the water flow of the system is larger than the cutoff value Q1 of the water flow switch and smaller than the closing value Q2 of the water flow switch, the water flow switch is maintained as it is.
Optionally, the target length adjusting mechanism 3 is an adjustable screw mechanism 3, and the adjustable screw mechanism 3 is connected with the target 2; the control device 1 adjusts the length of the target 2 by controlling the rotation of the adjustable screw mechanism 3. Target piece length adjustment mechanism is not limited to adjustable screw mechanism, can also be other structures, no matter what kind of concrete form's target piece length adjustment mechanism, as long as can adjust the length of the target piece of being connected with it, change the length that the target piece inserted in the pipeline, just can change the size of the moment that the target piece received in the pipeline, thereby adjust under the condition of certain flow, target piece formula water flow switch's on-off state, make current on-off state suit with current flow state, reduce water flow switch's false alarm protection.
In addition, the control device in the present embodiment may be a mechanical device or an electronic device. When the mechanical device is adopted, the length of the target piece can be adjusted by manually controlling the mechanical device; when an electronic device is adopted, the length of the target can be adjusted through automatic control of a computer. For example, in the use process of the cooling machine, manual check finds that the water flow switch frequently falsely reports the protection, and at the moment, the mechanical control device is manually controlled, so that the target plate is properly extended, and the frequency of the falsely reporting protection of the water flow switch is reduced.
Preferably, however, the electronic device type control device is adopted, the length of the target piece can be intelligently adjusted, and the frequency of false alarm protection of the water flow switch is reduced in a self-adaptive mode. Optionally, the control device comprises: a water inlet temperature sensing bulb and a water outlet temperature sensing bulb; the water inlet temperature sensing bulb is arranged on a water inlet pipeline of the cooling machine; and the water outlet temperature sensing bulb is arranged on a water outlet pipeline of the cooler. Fig. 2 is an assembly diagram of a target type water flow switch according to an embodiment of the present invention, and as shown in fig. 2, a target type water flow switch 21 is installed on a water outlet pipeline of a cooling machine, a water inlet temperature sensing bulb 22 is installed on a water inlet pipeline of the cooling machine, and a water outlet temperature sensing bulb 23 is installed on a water outlet pipeline of the cooling machine.
Fig. 3 is a schematic structural diagram of a control device according to an embodiment of the present invention, and as shown in fig. 3, the control device includes a detection module 31 (i.e., an inlet bulb 22 and an outlet bulb 23), a calculation module 32, a judgment module 33, and an adjustment module 34. Optionally, when the control device with the electronic device is adopted, the control device adopts the detection module 31 to detect the water inlet temperature and the water outlet temperature; the calculation module 32 calculates the flow rate of the water pipe according to the water inlet temperature of the cooler, the water outlet temperature of the cooler and the rated refrigerating capacity; the judging module 33 compares the flow rate of the water outlet pipe with a rated cutoff value of the water flow switch and the on-off state of the water flow switch; the adjustment module 34 controls the target length adjustment mechanism to increase or decrease the length of the target.
In the embodiment, a cooling machine is further provided, and the cooling machine comprises the target plate type water flow switch.
In this embodiment, a control method of a target plate type water flow switch is further provided, and fig. 4 is a flowchart of the control method of the target plate type water flow switch according to the embodiment of the present invention, as shown in fig. 4, the flowchart includes the following steps:
step S401, detecting the water inlet temperature and the water outlet temperature of a cooler;
step S402, calculating the flow of a water outlet pipe on a water outlet pipeline of the cooler according to the water inlet temperature, the water outlet temperature and the rated refrigerating capacity of the cooler in the current state;
step S403, judging whether the flow of the water outlet pipe is larger than the rated cutoff value of the water flow switch or not and whether the water flow switch is in a disconnected state or not;
and S404, under the condition that the flow of the water outlet pipe is larger than the rated cutoff value of the water flow switch and the water flow switch is in an off state, increasing the length of the target plate until the water flow switch is closed.
The above process is explained below by way of an example.
The water inlet temperature of the unit is T1, the water outlet temperature of the unit is T2, the rated flow of the unit is Q0, the rated cutoff value of the water flow switch is Qe, the length of the rated target plate of the water flow switch is L0, the length of the telescopic thread is L1, and the actual length of the water flow switch is L.
The detection module detects the water inlet temperature Ti and the water outlet temperature To of the unit through the unit water inlet temperature sensing bulb T1 and the unit water inlet temperature sensing bulb T2 according To the formula:
the rated refrigerating capacity Q of the unit is m, c, Delta t, m, c (Ti-To), rho, Q1, c (Ti-To), and the calculating module calculates the flow Ql of the unit according To the rated refrigerating capacity Q.
In the formula, m represents the mass of water, c represents the specific heat capacity of water, and ρ represents the density of water.
The judging module compares the calculated flow Ql with the rated cutoff value Qe of the water flow switch, and the adjusting module adjusts the length of a target sheet of the water flow switch according to the comparison result.
When Ql is larger than Qe and water flow switch protection occurs, the water flow switch of the unit cannot be normally switched on and off and is interfered by a connecting pipeline, the length delta L of a target sheet of the water flow switch is increased (delta L is smaller than 0 and smaller than L1) by adjusting an adjustable thread section of the water flow switch until the water flow switch protection is removed, and the actual length of the target sheet of the water flow switch is L0 plus delta L.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
In addition, the control method of the target water flow switch according to the embodiment of the present invention described in conjunction with fig. 4 may be implemented by a control device of the target water flow switch. Fig. 5 is a schematic hardware configuration diagram of a control device of a target water flow switch according to an embodiment of the invention.
The control device for the target-style water flow switch may include a processor 51 and a memory 52 having stored thereon computer program instructions.
Specifically, the processor 51 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured as one or more Integrated circuits implementing the embodiments of the present invention.
Memory 52 may include mass storage for data or instructions. By way of example, and not limitation, memory 52 may include a Hard Disk Drive (HDD), a floppy Disk Drive, flash memory, an optical Disk, a magneto-optical Disk, tape, or a Universal Serial Bus (USB) Drive or a combination of two or more of these. Memory 52 may include removable or non-removable (or fixed) media, where appropriate. The memory 52 may be internal or external to the data processing apparatus, where appropriate. In a particular embodiment, the memory 52 is a non-volatile solid-state memory. In particular embodiments, memory 52 includes Read Only Memory (ROM). Where appropriate, the ROM may be mask-programmed ROM, Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory or a combination of two or more of these.
The processor 51 reads and executes the computer program instructions stored in the memory 52 to implement the control method of the target water flow switch in any of the above embodiments.
In one example, the control device of the target plate water flow switch may also include a communication interface 53 and a bus 50. As shown in fig. 5, the processor 51, the memory 52, and the communication interface 53 are connected via the bus 50 to complete mutual communication.
The communication interface 53 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiments of the present invention.
The bus 50 includes hardware, software, or both that couple the components of the control device of the target water flow switch to each other. By way of example, and not limitation, a bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hypertransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an infiniband interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus or a combination of two or more of these. Bus 50 may include one or more buses, where appropriate. Although specific buses have been described and shown in the embodiments of the invention, any suitable buses or interconnects are contemplated by the invention.
The control device of the target sheet type water flow switch can execute the control method of the target sheet type water flow switch in the embodiment of the invention based on the acquired data, thereby realizing the control method of the target sheet type water flow switch described with reference to fig. 4.
In addition, in combination with the control method of the target sheet type water flow switch in the above embodiments, the embodiments of the present invention may provide a computer readable storage medium to implement. The computer readable storage medium having stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement a method of controlling a target water flow switch as in any one of the above embodiments.
In summary, according to the embodiments provided by the invention, the target length adjusting device of the water flow switch is added, and the control device is added, so that the reliability of the water flow switch can be improved, the problem of interference during the assembly of the water flow switch can be solved, the problem of water flow switch protection of the machine tool cooling machine can be solved, the damage of the machine tool cooling machine caused by shielding the water flow switch is avoided, and the user satisfaction is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A target-style water flow switch, comprising: a control device, a target and a target length adjusting mechanism, wherein,
the target sheet is connected with the target sheet length adjusting mechanism;
the target piece length adjusting mechanism is connected with the control device and is used for adjusting the length of the target piece under the control of the control device;
the control device is used for calculating the flow of the water pipe according to the water inlet temperature of the cooling machine, the water outlet temperature of the cooling machine and the rated refrigerating capacity, and controlling the target piece length adjusting mechanism to increase or shorten the length of the target piece according to the comparison result of the flow of the water outlet pipe and the rated cutoff value of the water flow switch and the on-off state of the water flow switch.
2. The target water flow switch of claim 1, wherein the target length adjustment mechanism is an adjustable screw mechanism, and the adjustable screw mechanism is connected to the target; the control device is used for adjusting the length of the target plate by controlling the rotation of the adjustable screw mechanism.
3. The target water flow switch of claim 1 wherein said control means comprises: a water inlet temperature sensing bulb and a water outlet temperature sensing bulb; wherein the content of the first and second substances,
the water inlet temperature sensing bulb is arranged on a water inlet pipeline of the cooling machine;
and the water outlet temperature sensing bulb is arranged on a water outlet pipeline of the cooler.
4. A cooling machine, characterized in that it comprises a target water flow switch according to any one of claims 1 to 3.
5. A method of controlling a target plate water flow switch as claimed in any one of claims 1 to 3, the method comprising:
detecting the water inlet temperature and the water outlet temperature of the cooler;
calculating the flow of a water outlet pipe on a water outlet pipeline of the cooler according to the water inlet temperature, the water outlet temperature and the rated refrigerating capacity of the cooler in the current state;
judging whether the flow of the water outlet pipe is larger than a rated cutoff value of the water flow switch or not and whether the water flow switch is in a disconnected state or not;
and under the condition that the flow of the water outlet pipe is larger than the rated cutoff value of the water flow switch and the water flow switch is in an off state, increasing the length of the target plate until the water flow switch is closed.
6. A control device of a target sheet type water flow switch as claimed in any one of claims 1 to 3, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory that, when executed by the processor, implement the method of claim 5.
7. A computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the method of claim 5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811180128.5A CN109539472B (en) | 2018-10-10 | 2018-10-10 | Target sheet type water flow switch, cooling machine, control method, equipment and medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811180128.5A CN109539472B (en) | 2018-10-10 | 2018-10-10 | Target sheet type water flow switch, cooling machine, control method, equipment and medium |
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| CN109539472A CN109539472A (en) | 2019-03-29 |
| CN109539472B true CN109539472B (en) | 2020-01-03 |
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| CN110779163B (en) * | 2019-10-21 | 2021-07-09 | 珠海格力电器股份有限公司 | Air conditioning unit control method and device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5216894A (en) * | 1991-10-18 | 1993-06-08 | Samsung Electronics Co., Ltd. | Control switch |
| JP2004342451A (en) * | 2003-05-15 | 2004-12-02 | Saginomiya Seisakusho Inc | Reversing type pressure switch and device equipped with the same |
| CN2854796Y (en) * | 2005-12-02 | 2007-01-03 | 苏新盛 | Liquid-flow magnetic induction switch |
| CN201898085U (en) * | 2010-04-13 | 2011-07-13 | 上海奉申制冷控制器有限公司 | Target sheet type flow switch |
| CN102829204A (en) * | 2012-09-10 | 2012-12-19 | 天津百利展发集团有限公司 | Constant flow shutoff-throttle multipurpose valve |
| CN102854227A (en) * | 2011-07-01 | 2013-01-02 | 珠海格力电器股份有限公司 | Detecting device and detecting method of target-type fluid |
| CN103165343A (en) * | 2011-12-12 | 2013-06-19 | 天津有序环境科技发展有限公司 | Target-type flow direction and flow switch |
| CN204732345U (en) * | 2015-06-26 | 2015-10-28 | 上海奉申制冷控制器有限公司 | A kind of target chip magnetic flow switch |
| CN106352507A (en) * | 2016-11-07 | 2017-01-25 | 珠海格力电器股份有限公司 | Water circulating system and water flow switch cutoff value adjusting method and device of water circulating system |
| CN205920933U (en) * | 2016-07-29 | 2017-02-01 | 红塔烟草(集团)有限责任公司 | Target formula switch of adjustable target width |
| CN107331573A (en) * | 2017-08-25 | 2017-11-07 | 辽宁精谷科技有限公司 | Online adjustable type target type flow switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208284434U (en) * | 2018-05-17 | 2018-12-25 | 上海安巢在线控制技术有限公司 | Without moisture condensation target sheet type flow switch |
-
2018
- 2018-10-10 CN CN201811180128.5A patent/CN109539472B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5216894A (en) * | 1991-10-18 | 1993-06-08 | Samsung Electronics Co., Ltd. | Control switch |
| JP2004342451A (en) * | 2003-05-15 | 2004-12-02 | Saginomiya Seisakusho Inc | Reversing type pressure switch and device equipped with the same |
| CN2854796Y (en) * | 2005-12-02 | 2007-01-03 | 苏新盛 | Liquid-flow magnetic induction switch |
| CN201898085U (en) * | 2010-04-13 | 2011-07-13 | 上海奉申制冷控制器有限公司 | Target sheet type flow switch |
| CN102854227A (en) * | 2011-07-01 | 2013-01-02 | 珠海格力电器股份有限公司 | Detecting device and detecting method of target-type fluid |
| CN103165343A (en) * | 2011-12-12 | 2013-06-19 | 天津有序环境科技发展有限公司 | Target-type flow direction and flow switch |
| CN102829204A (en) * | 2012-09-10 | 2012-12-19 | 天津百利展发集团有限公司 | Constant flow shutoff-throttle multipurpose valve |
| CN204732345U (en) * | 2015-06-26 | 2015-10-28 | 上海奉申制冷控制器有限公司 | A kind of target chip magnetic flow switch |
| CN205920933U (en) * | 2016-07-29 | 2017-02-01 | 红塔烟草(集团)有限责任公司 | Target formula switch of adjustable target width |
| CN106352507A (en) * | 2016-11-07 | 2017-01-25 | 珠海格力电器股份有限公司 | Water circulating system and water flow switch cutoff value adjusting method and device of water circulating system |
| CN107331573A (en) * | 2017-08-25 | 2017-11-07 | 辽宁精谷科技有限公司 | Online adjustable type target type flow switch |
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| CN109539472A (en) | 2019-03-29 |
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