CN109780263B - Valve for identifying and controlling fluid - Google Patents
Valve for identifying and controlling fluid Download PDFInfo
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- CN109780263B CN109780263B CN201910092244.XA CN201910092244A CN109780263B CN 109780263 B CN109780263 B CN 109780263B CN 201910092244 A CN201910092244 A CN 201910092244A CN 109780263 B CN109780263 B CN 109780263B
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- 239000012530 fluid Substances 0.000 title claims abstract description 56
- 239000007788 liquid Substances 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 239000007787 solid Substances 0.000 claims description 17
- 229910052742 iron Inorganic materials 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 36
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 241000237858 Gastropoda Species 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
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Abstract
The invention provides a valve for identifying and controlling fluid, which is characterized in that a sensor for identifying the state of the fluid is arranged at a medium inlet of a valve body, the sensor sends a received signal to a controller, and the controller controls an actuating mechanism to open or close a flow channel; the valve combines two functions of fluid identification and switch control, so that the valve has the functions of accurately identifying the fluid state and quickly controlling the switch; according to the invention, the first medium outlet and the second medium outlet are arranged at the outlet of the valve body, the sensor identifies the state of the fluid and controls the actuating mechanism through the controller to enable the liquid and the gas in the fluid to respectively flow to different medium outlets, so that the rapid separation of the gas and the liquid is realized, and the impact of slug flow on pipelines and equipment is eliminated or reduced; the disconnection of pipelines and the number of required cables are reduced, and the technical problem that old equipment and old process are frequently limited by interface positions and cable capacity is solved.
Description
Technical Field
The invention belongs to a control system, and particularly relates to a valve for identifying and controlling fluid.
Background
In industrial automation production, it is often necessary to identify and control, in particular on-off control, the medium flowing in the pipe. For example, the inlet of a natural gas compressor should continuously input gas, when liquid enters, the natural gas compressor should be turned off in time, otherwise, the incompressibility of the liquid can damage the machine; the heating coils of coal-fired boilers or certain chemical reactors should be filled with a continuous flow of liquid, and when gas comes in series, damage or even disasters can be caused to the heating coils or reaction equipment.
In addition, gas and liquid slugs are present in the piping of many production practices and equipment commonly used, and need to be quickly separated and eliminated. For example, a long-distance pipeline of an offshore or onshore oil field is easy to generate gas and liquid slug flow due to the existence of the elevation difference, so that strong vibration is generated to threaten the production safety; slugs are also easily produced in the air-conditioning refrigerant pipe or the boiler heat exchange coil pipe, which causes the reduction of the working efficiency of the equipment. These harmful gas and liquid slugs need to be identified and eliminated. The conventional elimination method is to use a container with certain volume and separation function, such as a gas-liquid separation tank, to separate gas and liquid and then to convey the separated gas and liquid through pipelines. And the gas and liquid slug flow in the pipeline completes the separation of gas and liquid, and forms a state that the gas column and the liquid column flow at intervals. The gas plug and the liquid plug flowing in the pipeline are only needed to be identified and the switch is quickly switched, so that the gas slug and the liquid slug flow to different pipeline branches respectively, the purpose of quickly separating gas from liquid is achieved, and the impact of slug flow on pipelines and equipment is eliminated or reduced.
In many production-critical processes, it is therefore necessary to detect changes in the medium in the pipeline and to implement a corresponding control scheme.
Disclosure of Invention
In order to solve the technical problem, the invention provides a valve for identifying and controlling fluid, which combines two functions of identifying and controlling fluid media to form an intelligent device; the intelligent device not only can quickly identify the state of the pipeline fluid, but also can quickly separate gas from liquid, thereby simplifying the complexity of the design of an automatic control system; for old equipment, old process modifications, often limited by the location of the interface and cable capacity, the valve of the present invention can reduce the amount of cable required and the amount of pipeline disconnection.
The specific technical scheme is as follows:
a valve for fluid identification and control comprising
One end of the valve body is provided with a medium inlet, and the other end of the valve body is provided with a medium outlet; the valve body comprises a shortest flow passage communicated with the medium inlet and the medium outlet, a groove which is vertically arranged in the flow direction of the flow passage and penetrates through the flow passage, and a plunger which is arranged in the groove and is matched with the flow passage;
the actuating mechanism comprises a connecting rod which is used for connecting the plunger and driving the plunger to reciprocate up and down in the groove so that the plunger and the flow passage are matched to open or close the flow passage;
a sensor disposed at the media inlet and configured to identify a condition of fluid at the media inlet;
and the controller is used for receiving the signal of the fluid state sent by the sensor and controlling the actuating mechanism according to the signal so as to open or close the flow channel.
Preferably, the plunger is provided with a through hole, and the through hole divides the plunger into a solid part and a through hole part; the direction of the through hole part is consistent with the flow direction of the flow channel; the solid part of the plunger is positioned in the flow passage to prevent the liquid or the gas from passing through, and the through hole part is positioned in the flow passage or the plunger is separated from the flow passage to realize the rapid passing of the liquid or the gas.
Preferably, the medium outlet comprises a first medium outlet for controlling the passage of gas and a second medium outlet for controlling the passage of liquid; the flow channel comprises a first flow channel communicated with the first medium outlet and a second flow channel communicated with the second medium outlet; the solid part of the plunger is positioned in the first flow passage or the second flow passage to realize quick closing of the first flow passage or the second flow passage, and the through hole part is positioned in the first flow passage or the second flow passage to realize quick opening of the first flow passage or the second flow passage.
Preferably, the valve body comprises a first valve body for controlling the passage of gas and a second valve body for controlling the passage of liquid, the first valve body and the second valve body sharing a medium inlet; the actuator includes a first actuator that controls the first valve body and a second actuator that controls the second valve body.
Preferably, the connecting rod can also drive the plunger to rotate in the groove, so that the flow channel and the through hole are overlapped to different degrees, and the continuous adjustment of the flow rate of the fluid in the flow channel is realized by 0-100%.
Preferably, the actuating mechanism further comprises a moving iron connected with the other end of the connecting rod, a spring, an electromagnetic coil connected with the moving iron through the spring and driving the connecting rod to reciprocate up and down, and a motor coil sleeved outside the connecting rod and generating torque to the connecting rod to drive the plunger to rotate.
Preferably, the sensor identifies the fluid condition using a mass change, a pressure change, an acoustic signal, an optical signal, an electrical signal, or a magnetic signal.
Preferably, the controller comprises a single chip circuit and an amplifier for processing the signal of the sensor.
Preferably, the sensors are ultrasonic transducing transmitters and receivers.
Preferably, pressure sensors are arranged at the medium inlet and the medium outlet, and the controller judges the state of the fluid according to the pressure difference between the medium inlet and the medium outlet.
Preferably, the valve is arranged at the outlet of the gas-liquid separator of the oil field.
The invention has the following beneficial effects:
the valve combines two functions of fluid identification and switch control, not only has the functions of accurately identifying and quickly controlling the switch, but also can quickly separate gas-liquid fluid, and eliminates or reduces the impact of slug flow on pipelines and equipment; reduces the disconnection of pipelines and the number of required cables, solves the technical problems that the old equipment and the old process are frequently limited by the interface position and the cable capacity
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 shows a schematic view of a valve according to a first embodiment of the invention.
Fig. 2 shows a schematic structural view of a valve according to a second embodiment of the present invention.
Fig. 3 shows a schematic view of a valve according to a third embodiment of the invention.
The device comprises a medium inlet 1, a medium outlet 2, a medium outlet 201, a first medium outlet 202, a second medium outlet 3, a valve body 4, a flow channel 401, a first flow channel 402, a second flow channel 5, a groove 6, a plunger 601, a solid part 602, a through hole part 8, an actuating mechanism 801, a first actuating mechanism 802, a second actuating mechanism 9, a connecting rod 10, a moving iron 11, a spring 12, an electromagnet coil 13, a motor coil 14, a sensor 15, a controller 16 and a signal output cable.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
In a first embodiment of the invention, as shown in fig. 1, there is provided a valve for fluid identification and control comprising: a valve body 3, an actuator 8 for controlling the valve body 3, a sensor 14 for recognizing a fluid state, and a controller 15 for receiving a signal of the sensor 14 and for controlling the actuator 8; the sensor 14 and the actuator 8 are connected to a controller 15 via a signal output cable 16.
One end of the valve body 3 is provided with a medium inlet 1, the other end opposite to the medium inlet 1 is provided with a medium outlet 2, the valve body 3 internally comprises a shortest flow passage 4 communicated with the medium inlet and the medium outlet, a groove 5 is arranged in the direction vertical to the flow passage 4 and penetrating through the inside of the flow passage 4, and a plunger 6 arranged in the groove 5 and matched with the flow passage 4; the actuating mechanism 8 comprises a connecting rod 9 which drives the plunger 6 to reciprocate up and down in the groove 5 so that the runner 4 and the plunger 6 are matched to realize the quick opening or closing of the runner 4, a moving iron 10 connected with one end of the connecting rod 9, a spring 11, an electromagnetic coil which is connected with the moving iron 10 through the spring 11 and drives the connecting rod 9 to reciprocate up and down, and a motor coil 13 which is sleeved outside the connecting rod 9 and generates torque to the connecting rod 9 so as to drive the plunger 6 to rotate; the sensor 14 is provided at the medium inlet 1 and is used for identifying the fluid state at the medium inlet 1; the controller 15 is used for receiving the fluid state signal sent by the sensor 14 and controlling the actuator 8 to open or close the flow channel 4 according to the fluid state signal, and the controller 15 comprises an amplifier for receiving the fluid signal sent by the sensor 14 and amplifying the signal and a single chip circuit for receiving the signal of the amplifier and calculating and judging the signal.
In this embodiment, the sensor 14 is an ultrasonic transducer transmitter and receiver. According to the characteristics of ultrasonic waves, the ultrasonic waves have strong capability of penetrating solid and liquid, the attenuation in air is relatively fast, the difference between the attenuation coefficients of the ultrasonic waves and the attenuation coefficients of the ultrasonic waves is about 20 times, and the fluid is clearly judged to be gas or liquid dominant by measuring the violent change of the signal intensity amplitude through a receiver in the sensor 14.
In the present embodiment, the lower portion of the plunger 6 is provided with a through hole that divides the plunger 6 into a solid portion 601 and a through hole portion 602; the connecting rod 9 can also drive the plunger 6 to rotate in the flow channel 4, so that the flow channel 4 and the through hole are overlapped to different degrees, and the continuous adjustment of the flow rate of 0-100% in the flow channel 4 is realized. The actuator 8 of the present invention may also perform the function of adjustment under the influence of the controller 15.
The valve of the embodiment is arranged at the outlet of the gas-liquid separator, when liquid flows out of a pipeline of the gas outlet, the sensor 14 recognizes a liquid signal and sends the signal to the amplifier, the amplifier amplifies the signal and sends the signal to the single chip microcomputer circuit, and the single chip microcomputer circuit controls the valve body 3 according to the signal to rapidly cut off a gas outlet channel.
In a second embodiment of the invention, as shown in fig. 2, there is provided a valve for fluid identification and control, the valve comprising: a valve body 3, an actuator 8 for controlling the valve body 3, a sensor 14 for recognizing a fluid state, and a controller 15 for receiving a signal of the sensor 14 and for controlling the actuator 8; the sensor 14 and the actuator 8 are connected to a controller 15 via a signal output cable 16.
One end of the valve body 3 is provided with a medium inlet 1, the other end of the valve body is provided with a medium outlet 2, and the medium outlet 2 comprises a first medium outlet 201 for gas to flow out and a second medium outlet 202 for liquid to flow out; the valve body 3 comprises a shortest first flow channel 401 communicated with the medium inlet 1 and the first medium outlet 201, a second flow channel 402 communicated with the medium inlet 1 and the second medium outlet 202 and parallel to the first flow channel 401, a groove 5 and a plunger 6 which is arranged in the groove 5 and is matched with the first flow channel 401 and the second flow channel 402, wherein the groove 5 is vertically arranged in the flow direction of the flow channel 4 and is communicated with the first flow channel 401 and the second flow channel 402 through the flow channel 4; the plunger 6 is provided at an upper portion thereof with a through hole which divides the plunger 6 into a solid portion 601 and a through hole portion 602; the direction of the through hole portion 602 coincides with the flow direction of the flow passage 4; the solid part 601 of the plunger 6 is positioned inside the flow channel 4 to prevent the liquid or gas from passing through, and the through hole part 602 is positioned inside the flow channel 4 or the plunger 6 is separated from the flow channel 4 to realize the rapid passing of the liquid or gas. The actuating mechanism 8 comprises a moving iron 10, a spring 11, a connecting rod 9, an electromagnetic coil and a motor coil 13, wherein one end of the connecting rod 9 is connected with the plunger 6, the other end of the connecting rod 9 is connected with the moving iron 10, the electromagnetic coil is connected with the moving iron 10 through the spring 11 and drives the connecting rod 9 to reciprocate up and down, and the motor coil 13 is sleeved outside the connecting rod 9 and generates torque to the connecting rod 9 to drive the plunger 6 to rotate. The connecting rod 9 can drive the plunger 6 to reciprocate up and down in the groove 5, so that the plunger 6 and the flow channel 4 are matched to open or close the flow channel 4, and can also drive the plunger 6 to rotate in the groove 5, so that the through hole of the plunger 6 and the flow channel 4 are overlapped to different degrees, and the continuous adjustment of the fluid flow of 0-100% in the flow channel 4 is realized. A sensor 14 is arranged at the medium inlet 1 and is used for identifying the state of the fluid at the medium inlet 1; the controller 15 includes an amplifier that receives the fluid signal sent by the sensor 14 and amplifies the signal, and a single chip circuit that receives the signal from the amplifier and performs calculations and determinations thereon. The controller 15 is used for receiving the fluid state signal sent by the sensor 14 and controlling the actuator 8 to open or close the flow passage 4 according to the fluid state signal.
The valve of the embodiment is installed at the outlet of the gas-liquid separator, when the sensor 14 identifies that the fluid is liquid, the sensor 14 sends the signal to the amplifier, the amplifier transmits the signal to the single chip microcomputer circuit for processing, the single chip microcomputer controls the actuating mechanism 8 according to the signal, the electromagnetic coil drives the connecting rod 9 to move upwards, the solid part 601 of the plunger 6 blocks the first flow channel 401, the plunger 6 is separated from the second flow channel 402, and the liquid enters the second medium outlet 202 through the second flow channel 402, as shown in fig. 2 (b); when the sensor 14 identifies that the fluid is gas, the sensor 14 sends the signal to the single chip circuit after being processed by the amplifier, the single chip controls the actuating mechanism 8 according to the signal, the electromagnetic coil drives the connecting rod 9 to move downwards, so that the solid part 601 of the plunger 6 blocks the second flow channel 402, the through hole part 602 cooperates with the first flow channel 401, and the gas enters the first medium outlet 201 through the first flow channel 401, as shown in fig. 2 (a); thereby realizing the rapid separation of gas and liquid.
In a third embodiment of the present invention, as shown in fig. 3, there is provided a valve for fluid identification and control, comprising: a first actuator 801 for controlling the passage of gas through the first valve body 3, a second valve body 3 for controlling the passage of liquid, a first actuator 801 for controlling the first valve body 3, a second actuator 802 for controlling the second valve body 3, a sensor 14 for identifying the state of the fluid, a controller 15 receiving signals from the sensor 14 and for controlling the first actuator 801 and the second actuator 802. The sensor 14 and the actuator 8 are connected to a controller 15 via a signal output cable 16.
The first valve body 3 and the second valve body 3 share one medium inlet 1, the first valve body 3 is provided with a first medium outlet 201 for gas to flow out, the second valve body 3 is provided with a second medium outlet 202 for liquid to flow out, the first valve body 3 and the second valve body 3 respectively comprise a shortest flow passage 4 communicated with the medium inlet 1 and the medium outlet 2, a groove 5 vertically arranged in the flow direction of the flow passage 4 and penetrating through the flow passage 4, and a plunger 6 arranged in the groove 5 and cooperating with the flow passage 4; the lower portion of the plunger 6 is provided with a through hole that divides the plunger 6 into a solid portion 601 and a through hole portion 602; the direction of the through hole portion 602 coincides with the flow direction of the flow passage 4; the solid part 601 of the plunger 6 is positioned inside the flow channel 4 to prevent the liquid or gas from passing through, and the through hole part 602 is positioned inside the flow channel 4 or the plunger 6 is separated from the flow channel 4 to realize the rapid passing of the liquid or gas. The actuating mechanism 8 comprises a moving iron 10, a spring 11, a connecting rod 9, an electromagnetic coil and a motor coil 13, wherein one end of the connecting rod 9 is connected with the plunger 6, the other end of the connecting rod 9 is connected with the moving iron 10, the electromagnetic coil is connected with the moving iron 10 through the spring 11 and drives the connecting rod 9 to reciprocate up and down, and the motor coil 13 is sleeved outside the connecting rod 9 and generates torque to the connecting rod 9 to drive the plunger 6 to rotate. The connecting rod 9 can drive the plunger 6 to reciprocate up and down in the groove 5, so that the plunger 6 and the flow channel 4 are matched to open or close the flow channel 4, and can also drive the plunger 6 to rotate in the groove 5, so that the through hole of the plunger 6 and the flow channel 4 are overlapped to different degrees, and the continuous adjustment of the fluid flow of 0-100% in the flow channel 4 is realized. A sensor 14 is arranged at the medium inlet 1 and is used for identifying the state of the fluid at the medium inlet 1; the controller 15 includes an amplifier that receives the fluid signal sent by the sensor 14 and amplifies the signal, and a single chip circuit that receives the signal from the amplifier and performs calculations and determinations thereon. The controller 15 is used for receiving the fluid state signal sent by the sensor 14 and controlling the actuator 8 to open or close the flow passage 4 according to the fluid state signal.
The valve of the embodiment is installed at the outlet of a gas-liquid separator, when the sensor 14 identifies that the fluid at the medium inlet 1 is gas, the sensor 14 sends the signal to an amplifier, the amplifier transmits the signal to a single-chip microcomputer circuit for processing, the single-chip microcomputer controls a first execution mechanism 801 and a second execution mechanism 802 according to the signal, a solenoid coil of the first execution mechanism 801 drives a connecting rod 9 to move upwards, the hole part 602 and a flow channel 4 are matched, the gas flows out through the first medium outlet 201, the solenoid coil of the second execution mechanism 802 drives the connecting rod 9 to move downwards, the solid part 601 blocks the flow channel 4, and the second medium outlet 202 is blocked; when the sensor 14 recognizes that the fluid at the medium inlet 1 is liquid, the sensor 14 sends the signal to the single chip circuit after being processed by the amplifier, the single chip controls the first actuator 801 and the second actuator 802 according to the signal, the electromagnetic coil of the first actuator 801 drives the connecting rod 9 to move downwards, the solid part 601 of the plunger 6 blocks the flow channel 4, and the first medium outlet 201 is closed; the electromagnetic coil of the second actuator 802 drives the connecting rod 9 to move upwards, so that the through hole part 602 cooperates with the flow channel 4, and the liquid flows out through the second medium outlet 202; thereby achieving a rapid separation of liquid and gas.
According to the valve, the sensor 14 for identifying the fluid state is arranged at the medium inlet 1 of the valve body 3, the sensor 14 sends a received signal to the controller 15, and the controller 15 controls the actuating mechanism 8 to open or close the flow channel 4; the valve combines two functions of fluid identification and switch control, so that the valve has the functions of accurately identifying the fluid state and quickly controlling the switch; according to the invention, the first medium outlet 201 and the second medium outlet 202 are arranged at the outlet of the valve body 3, the sensor 14 identifies the state of the fluid and controls the actuating mechanism 8 through the controller 15 to enable the liquid and the gas in the fluid to respectively flow to different medium outlets 2, so that the gas and the liquid are quickly separated, and the impact of slug flow on pipelines and equipment is eliminated or reduced; the disconnection of pipelines and the number of required cables are reduced, and the technical problem that old equipment and old process are frequently limited by interface positions and cable capacity is solved.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (8)
1. A valve for fluid identification and control, comprising
One end of the valve body is provided with a medium inlet, and the other end of the valve body is provided with a medium outlet; the valve body comprises a shortest flow passage communicated with the medium inlet and the medium outlet, a groove which is vertically arranged in the flow direction of the flow passage and penetrates through the flow passage, and a plunger which is arranged in the groove and is matched with the flow passage;
the actuating mechanism comprises a connecting rod which is used for connecting the plunger and driving the plunger to reciprocate up and down in the groove so that the plunger and the flow passage are matched to open or close the flow passage;
a sensor disposed at the media inlet and configured to identify a condition of fluid at the media inlet;
the controller is used for receiving the signal of the fluid state sent by the sensor and controlling the actuating mechanism according to the signal so as to open or close the flow channel;
the plunger is provided with a through hole which divides the plunger into a solid part and a through hole part; the direction of the through hole part is consistent with the flow direction of the flow channel; the solid part of the plunger is positioned in the flow passage to prevent liquid or gas from passing through, and the through hole part is positioned in the flow passage or the plunger is separated from the flow passage to realize quick passing of the liquid or gas;
the medium outlet comprises a first medium outlet for controlling the gas to pass through and a second medium outlet for controlling the liquid to pass through; the flow channel comprises a first flow channel communicated with the first medium outlet and a second flow channel communicated with the second medium outlet; the solid part of the plunger is positioned in the first flow passage or the second flow passage to realize quick closing of the first flow passage or the second flow passage, and the through hole part is positioned in the first flow passage or the second flow passage to realize quick opening of the first flow passage or the second flow passage.
2. The valve of claim 1, wherein the valve body comprises a first valve body for controlling the passage of gas and a second valve body for controlling the passage of liquid, the first and second valve bodies sharing a single media inlet; the actuator includes a first actuator that controls the first valve body and a second actuator that controls the second valve body.
3. The valve of claim 1, wherein the connecting rod is further adapted to drive the plunger to rotate in the flow channel, so that the flow channel and the through hole overlap to different degrees, thereby achieving a continuous adjustment of the fluid flow rate in the flow channel of 0-100%.
4. The valve according to claim 1, wherein the actuator further comprises a moving iron connected to the other end of the connecting rod, a spring, an electromagnetic coil connected to the moving iron through the spring and driving the connecting rod to reciprocate up and down, and a motor coil sleeved outside the connecting rod and generating a torque to the connecting rod to drive the plunger to rotate.
5. The valve of claim 1, wherein the sensor identifies the fluid condition using a mass change, a pressure change, an acoustic signal, an optical signal, an electrical signal, or a magnetic signal.
6. The valve of claim 1, wherein the controller comprises a single chip circuit and an amplifier for processing the signal of the sensor.
7. The valve of claim 5, wherein the sensor is an ultrasonic transducer transmitter and receiver.
8. The valve of claim 5, wherein the medium inlet and outlet are provided with pressure sensors, and the controller determines the state of the fluid according to the pressure difference between the medium inlet and outlet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910092244.XA CN109780263B (en) | 2019-01-30 | 2019-01-30 | Valve for identifying and controlling fluid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910092244.XA CN109780263B (en) | 2019-01-30 | 2019-01-30 | Valve for identifying and controlling fluid |
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| CN109780263A CN109780263A (en) | 2019-05-21 |
| CN109780263B true CN109780263B (en) | 2020-03-17 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110594431B (en) * | 2019-09-29 | 2021-02-05 | 南京晨光集团有限责任公司 | Special valve for liquid delivery |
| CN112810320A (en) * | 2019-11-15 | 2021-05-18 | 东友科技股份有限公司 | Flow passage control system |
| CN115006906B (en) * | 2022-05-27 | 2023-08-01 | 安徽斯瑞尔阀门有限公司 | Water valve capable of adaptively adjusting flow direction and implementation method thereof |
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Effective date of registration: 20231122 Address after: 511458 Room 501, building 1, 1119 Haibin Road, Nansha District, Guangzhou City, Guangdong Province Patentee after: Guangdong Aerospace Science and Technology Research Institute (Nansha) Address before: 100190, No. 15 West Fourth Ring Road, Beijing, Haidian District Patentee before: INSTITUTE OF MECHANICS, CHINESE ACADEMY OF SCIENCES |