CN111927655A - Gas flow metering regulating valve - Google Patents
Gas flow metering regulating valve Download PDFInfo
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- CN111927655A CN111927655A CN202010768467.6A CN202010768467A CN111927655A CN 111927655 A CN111927655 A CN 111927655A CN 202010768467 A CN202010768467 A CN 202010768467A CN 111927655 A CN111927655 A CN 111927655A
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- Prior art keywords
- gas
- gas flow
- regulating valve
- flow metering
- valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0239—Pressure or flow regulators therefor
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to a gas flow metering regulating valve in the technical field of engines, which comprises a valve body assembly, a coupling, an electric actuator, an electric cabinet and a sensor assembly, wherein the valve body assembly is provided with a valve body; the valve body assembly comprises an air passage and a butterfly valve, the air passage realizes air inlet and outlet control through the butterfly valve, the butterfly valve is connected with the electric actuator through a coupler, the electric control box implements electric control on the electric actuator, and the sensor assembly collects gas data information in the air passage in real time and transmits the gas data information to the electric control box. The invention is suitable for various gas components and gas pressure, can realize the accurate control of the gas inlet flow of the gas engine, and particularly can quickly adjust the gas flow to a set value under the conditions of the change of the engine load, the change of the gas inlet pressure and the change of the concentration, thereby ensuring the air-fuel ratio of the engine within the range of stable combustion requirements and providing guarantee for the stable and safe operation of the gas engine.
Description
Technical Field
The invention relates to the technical field of engines, in particular to a gas flow metering regulating valve.
Background
In the current gas engine gas flow control, most of the gas engines directly adopt butterfly valves to adjust the gas inflow, and do not accurately measure the gas flow, so that the working efficiency of the engine is not facilitated, the gas combustion is insufficient, and the emission of waste gas is increased.
The prior art searches and discovers that the Chinese utility model has the patent publication number of CN208026319U, and discloses a gas flowmeter, which comprises a shell, a gas flow chamber, a transmission mechanism, a measuring mechanism and a control panel, wherein the gas flow chamber and the control panel are arranged in the shell; the transmission mechanism comprises a diaphragm, the diaphragm is positioned in the gas flowing chamber, one end of the transmission shaft is connected with the diaphragm, the other end of the transmission shaft is connected with a crank gear through a transmission arm, and the crank gear is meshed with the idle wheel; the measuring mechanism comprises a measuring gear, the measuring gear is meshed with the idler wheel, the central shaft is connected with a magnet protective shell, the magnet is arranged in the magnet protective shell, the magnetic sensor is arranged on the shell and is parallelly opposite to the magnet, and the magnetic sensor is also electrically connected with the control panel. The patented technology suffers from the problems associated with the prior art.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a gas flow metering regulating valve.
The invention provides a gas flow metering regulating valve which comprises a valve body assembly, a coupling, an electric actuator, an electric cabinet and a sensor assembly, wherein the valve body assembly comprises a valve body, a coupling, an electric actuator and a sensor;
the valve body assembly comprises an air passage and a butterfly valve, the air passage controls air inlet and outlet through the butterfly valve, the butterfly valve is connected with the electric actuator through the coupler, the electric control box performs electric control on the electric actuator, and the sensor assembly collects gas data information in the air passage in real time and transmits the gas data information to the electric control box.
In some embodiments, the electric actuator is integrated with a position sensor.
In some embodiments, the butterfly valve includes a valve body, a rotating shaft, and a valve plate, the valve plate is installed on the rotating shaft, the valve plate is located in the air passage, and the rotating shaft, the coupling, and the electric actuator are sequentially connected.
In some embodiments, the sensor assembly includes a differential pressure sensor, a pressure sensor, and a temperature sensor.
In some embodiments, the low pressure end of the differential pressure sensor is communicated with the air inlet end of the air passage, the high pressure end of the differential pressure sensor is communicated with the air outlet end of the air passage, and the differential pressure sensor realizes measurement of the inlet-outlet differential pressure.
In some embodiments, the pressure sensor is communicated with the air inlet end of the air passage, and the pressure sensor is used for measuring the pressure of the air inlet end.
In some embodiments, the temperature sensor is connected to the gas outlet end of the gas passage, and is used for collecting the gas temperature at the gas outlet end.
In some embodiments, the electric control box is provided with a parallel gas metering regulating valve.
In some embodiments, the electric cabinet is further provided with a calibration port, and the calibration port is used for software parameter calibration.
In some embodiments, the coupling is a rigid coupling or a flexible coupling.
Compared with the prior art, the invention has the following beneficial effects:
1. the gas flow metering regulating valve is suitable for various gas components and gas pressure, can realize the accurate control of the gas inlet flow of the gas engine, and particularly can quickly regulate the gas flow to reach a set value under the conditions of the load change of the engine, the gas inlet pressure and the concentration change, thereby ensuring the air-fuel ratio of the engine within the range of stable combustion requirements and providing guarantee for the stable and safe operation of the gas engine.
2. By applying the position sensor, the gas flow metering regulating valve has the characteristics of quick response, high flow calculation precision and high flow regulation precision, so that the gas engine can be effectively controlled.
3. The parallel gas metering regulating valves are arranged on the electric control box, so that two gas flow metering regulating valves can be used simultaneously according to the power requirement of the engine, one gas flow metering regulating valve serves as a main valve, the other gas flow metering regulating valve serves as an auxiliary valve, and the use range is expanded.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of the overall structure of the gas flow metering regulating valve of the present invention;
fig. 2 is a structural sectional view of the gas flow metering regulating valve of the invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
The invention provides a gas flow metering regulating valve which comprises a valve body assembly 1, a coupling 2, an electric actuator 3, an electric cabinet 4 and a sensor assembly 5. The valve body assembly 1 comprises an air passage 10 and a butterfly valve 11, the sensor assembly 5 is communicated with the air passage 10, the gas flow information collected from the air passage 10 is transmitted to the electric cabinet 4, and the gas flow passing through the valve body is calculated through a control unit arranged in the electric cabinet 4. Butterfly valve 11 passes through shaft coupling 2 and is connected with electric actuator 3, and is preferred, and the integration has position sensor in the electric actuator 3, and position sensor transmits the aperture signal of throttle valve to electric cabinet 4's the control unit, and its electric cabinet 4 communicates with the engine overall control unit in real time, according to the flow demand signal that overall control unit sent, through the turned angle who adjusts electric actuator 3 to adjust 11 apertures of butterfly valve realizes the flow closed loop.
The butterfly valve 11 includes a valve body 1101, a rotation shaft 1102, and a valve sheet 1103. The air passage 10 passes through the valve body 1101, and a space in the middle of the air passage 10 is used as a cavity structure of the valve body 10. The air duct 10 and the valve body 1101 may be integrally formed, or may be separately connected by a screw or the like in a sealing manner. Both ends of the rotation shaft 1102 are rotatably connected to both ends of the valve body 1101. Preferably, both ends of the rotation shaft 1102 are rotatably coupled to both ends of the valve body 1101 by high temperature stainless steel bearings 1104. Preferably, shaft seals 1105 are further disposed on the upper and lower surfaces of the rotary shaft 1102 rotatably connected to the valve body 1101 to improve the sealing performance. Valve plate 1103 is installed in the holding hole that pivot 1102 was seted up, fixes through means such as screw for valve plate 1103 rotates along with the rotation of pivot 1102, and valve plate 1103 is located the air flue 10 that acts as the cavity structure of valve body 1101, realizes the control to gas flow in the air flue 10 through the rotation along with pivot 1102.
The shaft 1102 is connected to the electric actuator 3 through a coupling 2, and the coupling 2 may be either a rigid coupling or a flexible coupling.
The sensor assembly 5 is connected to the air passage 10 and used for collecting related flow information of gas passing through the air passage 10, feeding the collected related information in the air passage back to the electric cabinet 4, and calculating the gas flow passing through the valve body assembly 1 through a control unit in the electric cabinet 4. Preferably, the sensor assembly 5 includes a differential pressure sensor 51, a pressure sensor 52, and a temperature sensor 53. The air inlet end of the air passage 10 is communicated with the pressure sensor 52 and the low pressure end of the differential pressure sensor 51 through an air pipe, and the high pressure end of the differential pressure sensor 51 is communicated with the air outlet end of the air passage 10, so that the pressure measurement at the air inlet end and the pressure measurement at the inlet and outlet are realized. The temperature sensor 53 is connected to the gas outlet end of the gas channel 10 for measuring the gas temperature at the gas outlet end. The three sensors of the differential pressure sensor 51, the pressure sensor 52 and the temperature sensor 53 transmit the acquired gas information in the gas channel 10 to the electric cabinet 4, and the gas flow passing through the valve body assembly 1 is calculated by a control unit in the electric cabinet 4. Of course, here, the air inlet end and the air outlet end of the air duct 10 are respectively located at two ends of the butterfly valve 11, specifically, at two ends of the valve sheet 1103. The circuit board in the electric cabinet 4 receives a flow setting signal of the upper layer controller through communication, and the signal is a fuel gas flow demand value obtained by real-time air-fuel ratio PID calculation. Meanwhile, the electric control box 4 calculates an actual flow value flowing through the metering valve at present according to signals such as pressure, differential pressure and temperature received from the sensor assembly 5 by combining a flow calculation formula stored in the memory, and compares the actual flow value with a flow set value obtained by communication of an upper controller. And carrying out PID calculation on the actual flow calculation value and the upper layer controller flow setting value to obtain the actual demand position of the valve, carrying out PID calculation on the actual position of the valve obtained by the position sensor to obtain the driving electrical parameter of the electromagnetic actuator or the motor in the actuator, and outputting the corresponding current to the electromagnetic actuator or the motor. The above processes are iterated continuously according to millisecond-level periods, so that the set flow is consistent with the actual calculated flow or within an acceptable error range, and finally flow control is realized.
The invention is suitable for various gas components and gas pressure through the design of the gas flow metering regulating valve, can realize the accurate control of the gas inlet flow of the gas engine, and particularly can quickly regulate the gas flow to reach a set value under the conditions of the change of the engine load, the change of the gas inlet pressure and the change of the concentration, thereby ensuring the air-fuel ratio of the engine to be within the range of stable combustion requirements and providing guarantee for the stable and safe operation of the gas engine. In addition, in the process of adjusting the power and the rotating speed of the engine, the gas flow metering regulating valve has the characteristics of quick response, high flow calculation precision and high flow regulation precision by applying the position sensor, so that the gas engine can be effectively controlled.
In the preferred embodiment, the electric control box 4 is provided with a parallel gas metering regulating valve 41, and two gas flow metering regulating valves, one as a main valve and one as an auxiliary valve, can be used together according to the requirement of the power of the engine. In addition, the electric cabinet 4 is also provided with a calibration port 42, which can facilitate the functions of software parameter calibration, software upgrade and the like.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A gas flow metering regulating valve is characterized by comprising a valve body assembly (1), a coupling (2), an electric actuator (3), an electric cabinet (4) and a sensor assembly (5);
the gas control valve is characterized in that the valve body assembly (1) comprises a gas passage (10) and a butterfly valve (11), the gas passage (10) is controlled by the butterfly valve (11) to enter and exit, the butterfly valve (11) is connected with the electric actuator (3) through the coupler (2), the electric cabinet (4) is used for implementing electric control on the electric actuator (3), and the sensor assembly (5) collects gas data information in the gas passage (10) in real time and transmits the gas data information to the electric cabinet (4).
2. Gas flow metering regulating valve according to claim 1, characterized in that the electric actuator (3) is integrated with a position sensor.
3. The gas flow metering regulating valve according to claim 1, wherein the butterfly valve (11) comprises a valve body (1101), a rotating shaft (1102) and a valve plate (1103), the valve plate (1103) is mounted on the rotating shaft (1102), the valve plate (1103) is located in the air passage (10), and the rotating shaft (1102), the coupler (2) and the electric actuator (3) are sequentially connected.
4. Gas flow metering regulating valve according to claim 1, characterized in that the sensor assembly (5) comprises a differential pressure sensor (51), a pressure sensor (52) and a temperature sensor (53).
5. The gas flow metering and regulating valve according to claim 4, wherein a low-pressure end of the differential pressure sensor (51) is communicated with an air inlet end of the air passage (10), a high-pressure end of the differential pressure sensor (51) is communicated with an air outlet end of the air passage (10), and the differential pressure sensor (51) realizes inlet and outlet differential pressure measurement.
6. The gas flow metering regulating valve according to claim 4, characterized in that the pressure sensor (52) is communicated with the air inlet end of the air passage (10), and the pressure sensor (52) realizes measurement of the pressure of the air inlet end.
7. The gas flow metering regulating valve according to claim 4, wherein the temperature sensor (53) is communicated with the gas outlet end of the gas channel (10) and is used for collecting the gas temperature at the gas outlet end.
8. Gas flow metering regulating valve according to claim 1, characterized in that the electric control box (4) is provided with a parallel gas metering regulating valve (41).
9. The gas flow metering regulating valve according to claim 8, characterized in that the electric control box (4) is further provided with a calibration port (42), and the calibration port (42) is used for software parameter calibration.
10. Gas flow metering regulating valve according to claim 1, characterized in that the coupling (2) is a rigid coupling or a flexible coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010768467.6A CN111927655A (en) | 2020-08-03 | 2020-08-03 | Gas flow metering regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010768467.6A CN111927655A (en) | 2020-08-03 | 2020-08-03 | Gas flow metering regulating valve |
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| Publication Number | Publication Date |
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| CN111927655A true CN111927655A (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010768467.6A Pending CN111927655A (en) | 2020-08-03 | 2020-08-03 | Gas flow metering regulating valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541243A (en) * | 2021-06-24 | 2021-10-22 | 烟台创为新能源科技股份有限公司 | Battery pack charging system and charging method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201011392Y (en) * | 2006-11-24 | 2008-01-23 | 沈新荣 | Electric regulating valve with electronic dynamic flow equilibrium function |
| CN202349313U (en) * | 2011-11-18 | 2012-07-25 | 杭州哲达科技股份有限公司 | Intelligent dynamic flow balancing valve integrating energy sensing function |
| CN108412640A (en) * | 2018-03-29 | 2018-08-17 | 海茵茨曼动力控制（嘉兴）有限公司 | A kind of metering valve assemblies for single channel gas injection system |
| CN212535877U (en) * | 2020-08-03 | 2021-02-12 | 中国船舶重工集团公司第七一一研究所 | Gas flow metering regulating valve |
-
2020
- 2020-08-03 CN CN202010768467.6A patent/CN111927655A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201011392Y (en) * | 2006-11-24 | 2008-01-23 | 沈新荣 | Electric regulating valve with electronic dynamic flow equilibrium function |
| CN202349313U (en) * | 2011-11-18 | 2012-07-25 | 杭州哲达科技股份有限公司 | Intelligent dynamic flow balancing valve integrating energy sensing function |
| CN108412640A (en) * | 2018-03-29 | 2018-08-17 | 海茵茨曼动力控制（嘉兴）有限公司 | A kind of metering valve assemblies for single channel gas injection system |
| CN212535877U (en) * | 2020-08-03 | 2021-02-12 | 中国船舶重工集团公司第七一一研究所 | Gas flow metering regulating valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541243A (en) * | 2021-06-24 | 2021-10-22 | 烟台创为新能源科技股份有限公司 | Battery pack charging system and charging method thereof |
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