CN109424782A - Automatically adjust the gas valve and gas-fired equipment of combustion gas size - Google Patents
Automatically adjust the gas valve and gas-fired equipment of combustion gas size Download PDFInfo
- Publication number
- CN109424782A CN109424782A CN201710750823.XA CN201710750823A CN109424782A CN 109424782 A CN109424782 A CN 109424782A CN 201710750823 A CN201710750823 A CN 201710750823A CN 109424782 A CN109424782 A CN 109424782A
- Authority
- CN
- China
- Prior art keywords
- direct current
- current generator
- gas
- spinner handle
- combustion gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007789 gas Substances 0.000 title claims abstract description 35
- 239000000567 combustion gas Substances 0.000 title claims abstract description 27
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003546 flue gas Substances 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 19
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 230000007812 deficiency Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003519 ventilatory effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/046—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention belongs to gas-fired equipment technical fields, disclose a kind of gas valve and gas-fired equipment for automatically adjusting combustion gas size, gas valve includes direct current generator；Counting device is mounted on the direct current generator, for detecting the circle number of the direct current generator rotation；Flue gas distributing pipe, inside are equipped with spinner handle, and the spinner handle drives rotation by the output shaft of the direct current generator；Control device is connected to the direct current generator and the counting device.The present invention to drive spinner handle to rotate required angle, and then carrys out regulating gas size, the simple cost of structure is low by driving direct current generator rotation.And the circle number of direct current generator rotation is able to detect by counting device, and then control device can accurately control the rotation of direct current generator, and then accurately control the rotational angle of spinner handle, to realize the accurate adjusting of combustion gas size, it can prevent spinner handle rotational angle deficiency from the adjusting of combustion gas size being caused to control inaccurate, influence user experience.
Description
Technical field
The present invention relates to gas-fired equipment technical field more particularly to a kind of gas valve for automatically adjusting combustion gas size and combustion gas
Equipment.
Background technique
Gas-fired equipment such as gas-cooker or gas heater etc., as one indispensable in people's daily life
Point, the burnt gas valve of gas-fired equipment belongs to the plug valve of mechanical knob at present, only when carrying out firepower (combustion gas) big minor adjustment
It can be that user's twisting valve rod is adjusted, can not achieve the function of electronic type automatic fire power adjusting.
Also there is Some gases equipment and realizes using electromagnetism air film valve the adjusting of combustion gas size, especially by solenoid electromagnetism
The continuous change in displacement of the strong magnetic magnet steel on pulsed magnetic field and air film that the pulse current of iron is formed realizes the adjusting of ventilatory capacity.But
Being this mode has a higher quality requirement to the control mode and method of electromagnetic solenoid and the service life of air film, cost compared with
Height, and this kind of mode can not monitor the rotational angle of gas valve spinner handle and whether meet control and require, the angle that easily rotates is insufficient,
Lead to control inaccuracy, influences user experience.
Summary of the invention
It is existing to solve the purpose of the present invention is to provide a kind of gas valve and gas-fired equipment for automatically adjusting combustion gas size
It is at high cost existing for gas valve automatic adjustment mode, the problem of spinner handle rotational angle can not be monitored.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of gas valve automatically adjusting combustion gas size, comprising:
Direct current generator；
Counting device is mounted on the direct current generator, for detecting the circle number of the direct current generator rotation；
Flue gas distributing pipe, inside are equipped with spinner handle, and the spinner handle drives rotation by the output shaft of the direct current generator；
Control device is connected to the direct current generator and the counting device
Preferably, the counting device includes the coding for being connected to the output shaft tail end and rotating with the output shaft
Disk, and with the coding disk be used cooperatively to photoelectric sensor is penetrated, penetrate photoelectric sensor for described pair and be connected to the control
Device.
Preferably, further including deceleration mechanism, the deceleration mechanism is connected to the output shaft of the direct current generator, and described
The output end of deceleration mechanism is connected to the spinner handle.
Preferably, the deceleration mechanism includes the driving gear being fixed on the output shaft, with the driving gear
The multiple-stage planetary gear train of engagement, the internal tooth engaged with the multiple-stage planetary gear train, and with the multiple-stage planetary gear train
The reducing output shaft in internal tooth is connected and is placed in, the reducing output shaft is connected to the spinner handle.
Preferably, the multiple-stage planetary gear train is three-stage planetary gear system.
Preferably, further including the connecting terminal being connected on the direct current generator, the connecting terminal is connected by cable
It is connected to the control device.
Preferably, the control device includes single-chip microcontroller, the single-chip microcontroller is connected to the direct current generator and described
Counting device.
The present invention also provides a kind of gas-fired equipments, including above-mentioned gas valve.
Preferably, the gas-fired equipment is gas-cooker.
Beneficial effects of the present invention: by driving direct current generator rotation, to drive spinner handle to rotate required angle, and then to adjust
Gas fuel saving size, the simple cost of structure are low.And the circle number of direct current generator rotation is able to detect by counting device, in turn
Control device can accurately control the rotation of direct current generator, and then accurately control the rotational angle of spinner handle, to realize combustion gas size
Accurate adjusting, can prevent spinner handle rotational angle deficiency from the adjusting of combustion gas size being caused to control inaccurate, influence user experience.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the gas valve of present invention automatic adjustment combustion gas size；
Fig. 2 is the structural schematic diagram of direct current generator and counting device cooperation of the present invention；
Fig. 3 is the structural schematic diagram of direct current generator of the present invention, counting device and deceleration mechanism；
Fig. 4 is the circuit controling drawing of direct current generator of the present invention.
In figure:
1, direct current generator；2, counting device；3, flue gas distributing pipe；4, deceleration mechanism；11, connecting terminal；21, coding disk；
22, to penetrating photoelectric sensor；31, spinner handle；41, driving gear；42, multiple-stage planetary gear train；43, internal tooth；44, slow down and export
Axis.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
The present invention provides a kind of gas valve for automatically adjusting combustion gas size, as shown in Figs 1-4, the automatic adjustment combustion gas size
Gas valve include that direct current generator 1, counting device 2, flue gas distributing pipe 3, deceleration mechanism 4 and control device (do not show in figure
Out), above-mentioned direct current generator 1 is connected to control device, and the output shaft of the direct current generator 1 is connected to above-mentioned deceleration mechanism 4, direct current
One end of the namely not connected deceleration mechanism 4 of the tail end of the output shaft of motor 1 is connected with above-mentioned counting device 2, the counting device 2
It is connected to control device, the output end of above-mentioned deceleration mechanism 4 is connected to the spinner handle 31 in above-mentioned flue gas distributing pipe 3, control device
Direct current generator 1 can be controlled to run, in 1 rotation process of direct current generator, deceleration mechanism 4 is driven to rotate, deceleration mechanism 4 then drives combustion
Spinner handle 31 in gas gas-distributing pipe 3 rotates, to realize the adjusting of combustion gas size, in 1 rotation process of direct current generator, and above-mentioned counting dress
The circle number of the rotation of direct current generator 1 can be detected by setting 2, and by lap information feedback to control device, control device is filled according to counting
The circle number for setting 2 feedbacks can determine the rotational angle of spinner handle 31, and can not reach requirement in the rotational angle of spinner handle 31
When, it is accurate to control 1 positive and negative rotation of direct current generator, and finally control spinner handle 31 rotates, and adjusts 31 rotational angle of spinner handle to reach accurate
Purpose, and then realize the effect of accurate regulating gas size.The structure of above-mentioned gas valve is simple and cost is low, Er Qieneng
It enough prevents 31 rotational angle deficiency of spinner handle from the adjusting of combustion gas size being caused to control inaccurate, influences user experience.
The setting of above-mentioned direct current generator 1 can more accurately adjust 31 rotational angle of spinner handle compared to stepper motor
It is whole, further achieve the purpose that accurate regulating gas size.Specifically, can refer to Fig. 2, wiring is additionally provided on direct current generator 1
Terminal 11, the connecting terminal 11 are connected to control device by cable, for controlling turning for the direct current generator 1 by control device
It is dynamic.
The present embodiment can reduce the revolving speed of direct current generator 1, and then can make 31 turns of spinner handle by setting deceleration mechanism 4
The degree of regulation of dynamic angle is higher, specifically, can refer to Fig. 3, above-mentioned deceleration mechanism 4 includes being fixed in the output of direct current generator 1
Driving gear 41 on axis, the multiple-stage planetary gear train 42 engaged with driving gear 41, specifically, the multiple-stage planetary gear train 42
For three-stage planetary gear system, it is to be understood that above-mentioned multiple-stage planetary gear train 42 is not limited only to three-stage planetary gear system,
It can be arranged according to the degree of regulation and installation space of different gas valve combustion gas sizes.
Above-mentioned multiple-stage planetary gear train 42 is engaged with internal tooth 43, and the internal tooth 43 is by multiple-stage planetary gear train 42 and driving tooth
Wheel 41 is equipped with reducing output shaft 44, which is connected to above-mentioned series of rows in being wrapped in internal tooth 43
Star gear train 42, under the rotation of direct current generator 1, above-mentioned deceleration mechanism 4 is driven rotation, and reducing output shaft 44 is connected with above-mentioned
The spinner handle 31 of flue gas distributing pipe 3, and it is able to drive the spinner handle 31 rotation.
Above-mentioned counting device 2 is mounted on direct current generator 1, for detecting the circle number of the rotation of direct current generator 1, specifically, can
Referring to Fig. 2, above-mentioned counting device 2 includes the coding disk for being connected to the output shaft tail end of direct current generator 1 and rotating with the output shaft
21, and with coding disk 21 be used cooperatively to photoelectric sensor 22 is penetrated, this is connected to control device to photoelectric sensor 22 is penetrated.
When coding disk 21 is enclosed with the rotation of direct current generator 1 one and when by penetrating photoelectric sensor 22, to penetrating 22 counting of photoelectric sensor
Once, and by the information of the turnning circle of the direct current generator 1 control device is passed to, control device is then according to the count information energy
Enough determine the operating condition of direct current generator 1.And the circle number that control device is fed back according to counting device 2 can determine spinner handle 31
Rotational angle, and can be when the rotational angle of spinner handle 31 does not reach requirement, accurate control 1 positive and negative rotation of direct current generator, and
Final control spinner handle 31 rotates, and to achieve the purpose that accurately to adjust 31 rotational angle of spinner handle, and then realizes that accurate regulating gas is big
Small effect.
In the present embodiment, above-mentioned control device includes single-chip microcontroller, specifically, the single-chip microcontroller is MCS-51 single-chip microcontroller, it should
MCS-51 single-chip microcontroller is connected to above-mentioned direct current generator 1 and counting device 2, for controlling the rotation and reception of direct current generator 1
The count information that counting device 2 transmits.
Specifically, above-mentioned single-chip microcontroller controls the positive and negative rotation of above-mentioned direct current generator 1 by following control circuit, specifically, such as
Shown in Fig. 4, the control circuit include the first transistor Q1, second transistor Q2, third transistor Q3, the 4th transistor Q4,
5th transistor Q5, the 6th transistor Q6, the 7th transistor Q7, the 8th transistor Q8, first resistor R5, second resistance R6,
Three resistance R7 and the 4th resistance R8, above-mentioned the first transistor Q1, second transistor Q2, third transistor Q3, the 4th transistor
Q4, the 5th transistor Q5, the 6th transistor Q6, the 7th transistor Q7 and the 8th transistor Q8 include grid, the first pole and
Second pole, in which:
Above-mentioned first resistor R5 and the 4th resistance R8 is connected on two control leads of single-chip microcontroller, above-mentioned second electricity
Resistance one end R6 is connected to first node a1, and the other end is connected to power supply VCC, and the one end above-mentioned 3rd resistor R7 is connected to the second contact
A2, the other end are connected to power supply VCC；
The grid of above-mentioned third transistor Q3 is connected to one end that first resistor R5 is not connected with single-chip microcontroller, third transistor Q3
The first pole be grounded setting, the second pole of third transistor Q3 is connected to first node a1；
The grid of above-mentioned 7th transistor Q7 is connected between second resistance R6 and first node a1, the 7th transistor Q7's
First pole is connected to the grid of the first transistor Q1, and the second pole of the 7th transistor Q7 is connected to power supply VCC；
The grid of above-mentioned the first transistor Q1 is connected to the first pole of the 7th transistor Q7, the first pole of the first transistor Q1
It is connected to above-mentioned direct current generator 1, the second pole of the first transistor Q1 is connected to power supply VCC；
The grid of above-mentioned second transistor Q2 is connected to first node a1, and the first pole of second transistor Q2 is connected to above-mentioned
Second pole of direct current generator 1, the first transistor Q1 is grounded setting；
The grid of above-mentioned 6th transistor Q6 is connected to one end that the 4th resistance R8 is not connected with single-chip microcontroller, the 6th transistor Q6
The first pole be grounded setting, the second pole of the 6th transistor Q6 is connected to second node a2；
The grid of above-mentioned 8th transistor Q8 is connected between 3rd resistor R7 and second node a2, the 8th transistor Q8's
First pole is connected to the grid of the 4th transistor Q4, and the second pole of the 8th transistor Q8 is connected to power supply VCC；
The grid of above-mentioned 4th transistor Q4 is connected to the first pole of the 8th transistor Q8, the first pole of the 4th transistor Q4
It is connected to above-mentioned direct current generator 1, the second pole of the 4th transistor Q4 is connected to power supply VCC；
The grid of above-mentioned 5th transistor Q5 is connected to second node a2, and the first pole of the 5th transistor Q5 is connected to above-mentioned
Second pole of direct current generator 1, the 5th transistor Q5 is grounded setting.
When needing to control 1 positive and negative rotation of direct current generator, one end input high level signal of first resistor R5, third transistor
Q3 conducting, first node a1 are low level, and the 7th transistor Q7 and the first transistor Q1 shutdown, second transistor Q2 are connected, directly
The second transistor Q2 ground connection that the first end (left end shown in Fig. 4) of galvanic electricity machine 1 passes through conducting；One end of second resistance R8 inputs
Low level signal, the 6th transistor Q6 shutdown, second node a2 is high level, and the 8th transistor Q8 and the 4th transistor Q4 are led
It is logical, the 5th transistor Q5 shutdown, the voltage of second end (right end shown in Fig. 4) input power VCC of direct current generator 1, direct current
Machine 1, which is realized, rotates forward (or reversion)；
One end input low level signal of first resistor R5, third transistor Q3 shutdown, first node a1 are high level, the
Seven transistor Q7 and the first transistor Q1 conducting, second transistor Q2 shutdown, a first end (left side shown in Fig. 4 for direct current generator 1
End) input power VCC voltage；One end input high level signal of second resistance R8, the 6th transistor Q6 conducting, second node
A2 is low level, the 8th transistor Q8 and the 4th transistor Q4 shutdown, the 5th transistor Q5 conducting, the second end of direct current generator 1
(right end shown in Fig. 4) by the 5th transistor Q5 of conducting, electrode, which is realized, inverts (or rotating forward).
By above-mentioned control circuit, the positive and negative rotation of direct current generator 1 can be efficiently controlled, and then realizes and spinner handle 31 is rotated
The accurate control of angle.
The present invention also provides a kind of gas-fired equipment, including above-mentioned gas valve, can accurate regulating gas size, improve
User experience.Specifically, above-mentioned gas-fired equipment can be gas-cooker or gas heater, it is also possible to other application combustion gas
Equipment.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (9)
1. a kind of gas valve for automatically adjusting combustion gas size characterized by comprising
Direct current generator (1)；
Counting device (2) is mounted on the direct current generator (1), for detecting the circle number of the direct current generator (1) rotation；
Flue gas distributing pipe (3), inside are equipped with spinner handle (31), and the spinner handle (31) is driven by the output shaft of the direct current generator (1)
Rotation；
Control device is connected to the direct current generator (1) and the counting device (2).
2. the gas valve of automatic adjustment combustion gas size according to claim 1, which is characterized in that the counting device (2)
Match including the coding disk (21) for being connected to the output shaft tail end and being rotated with the output shaft, and with the coding disk (21)
Close use to penetrating photoelectric sensor (22), penetrate photoelectric sensor (22) for described pair and be connected to the control device.
3. the gas valve of automatic adjustment combustion gas size according to claim 1, which is characterized in that further include deceleration mechanism
(4), the deceleration mechanism (4) is connected to the output shaft of the direct current generator (1), and the output end of the deceleration mechanism (4) connects
It is connected to the spinner handle (31).
4. the gas valve of automatic adjustment combustion gas size according to claim 3, which is characterized in that the deceleration mechanism (4)
Including the driving gear (41) being fixed on the output shaft, the multiple-stage planetary gear train engaged with the driving gear (41)
(42), the internal tooth (43) engaged with the multiple-stage planetary gear train (42), and connect with the multiple-stage planetary gear train (42)
And it is placed in the reducing output shaft (44) in internal tooth (43), the reducing output shaft (44) is connected to the spinner handle (31).
5. the gas valve of automatic adjustment combustion gas size according to claim 4, which is characterized in that the multi-stage planetary gear
System (42) is three-stage planetary gear system.
6. the gas valve of automatic adjustment combustion gas size according to claim 1, which is characterized in that further include be connected to it is described
Connecting terminal (11) on direct current generator (1), the connecting terminal (11) are connected to the control device by cable.
7. the gas valve of automatic adjustment combustion gas size according to claim 1, which is characterized in that the control device includes
Single-chip microcontroller, the single-chip microcontroller are connected to the direct current generator (1) and the counting device (2).
8. a kind of gas-fired equipment, which is characterized in that including gas valve as claimed in claim 1 to 7.
9. gas-fired equipment according to claim 8, which is characterized in that the gas-fired equipment is gas-cooker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710750823.XA CN109424782A (en) | 2017-08-28 | 2017-08-28 | Automatically adjust the gas valve and gas-fired equipment of combustion gas size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710750823.XA CN109424782A (en) | 2017-08-28 | 2017-08-28 | Automatically adjust the gas valve and gas-fired equipment of combustion gas size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109424782A true CN109424782A (en) | 2019-03-05 |
Family
ID=65502662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710750823.XA Pending CN109424782A (en) | 2017-08-28 | 2017-08-28 | Automatically adjust the gas valve and gas-fired equipment of combustion gas size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109424782A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237534A (en) * | 2020-01-21 | 2020-06-05 | 南京航空航天大学 | Intelligent ball valve execution device powered by solar energy |
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|---|---|---|---|---|
| CN111237534A (en) * | 2020-01-21 | 2020-06-05 | 南京航空航天大学 | Intelligent ball valve execution device powered by solar energy |
| CN111237534B (en) * | 2020-01-21 | 2023-09-26 | 南京航空航天大学 | Intelligent ball valve execution device powered by solar energy |
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