CN111853255A - Automatic opening and closing device for concentrated solution additive conveying pipeline valve for hydraulic support - Google Patents
Automatic opening and closing device for concentrated solution additive conveying pipeline valve for hydraulic support Download PDFInfo
- Publication number
- CN111853255A CN111853255A CN202010726089.5A CN202010726089A CN111853255A CN 111853255 A CN111853255 A CN 111853255A CN 202010726089 A CN202010726089 A CN 202010726089A CN 111853255 A CN111853255 A CN 111853255A
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- Prior art keywords
- pipeline
- rack
- gear
- valve
- concentrated solution
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Classifications
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
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- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0254—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor being operated by particular means
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- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/029—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with two or more gates
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- 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
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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- 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
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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- 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
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses an automatic opening and closing device for a conveying pipeline valve of a concentrated solution additive for a hydraulic support, relates to the technical field of pipeline transportation, and aims to solve the problems that time is wasted and manpower is wasted when a closed valve is manually opened and most pipeline valves are closed in a one-way mode, and liquid is not tightly sealed and is easy to leak. The invention can replace manual valve closing and can perform multiple times of valve closing of the pipeline, thereby effectively preventing liquid in the pipeline from leaking, reducing the safety risk of production and being beneficial to safe and rapid operation of enterprises.
Description
Technical Field
The invention relates to the technical field of pipeline transportation, in particular to an automatic opening and closing device for a delivery pipeline valve of a concentrated solution additive for a hydraulic support.
Background
Pipeline transportation is a transportation mode for long-distance transportation of liquid and gas materials by using pipelines as transportation tools, is a transportation mode for transporting petroleum, coal and chemical products to markets from production places, and is a special component part for trunk transportation in a uniform transportation network.
The valve of the current pipeline conveying device is mostly opened and closed manually, time is wasted, manpower is wasted, the pipeline valve is mostly closed in a one-way mode, the risk that liquid is sealed and leaks easily due to untight sealing exists, and therefore the automatic opening and closing device for the pipeline conveying valve of the concentrated liquid additive for the hydraulic support is designed.
Disclosure of Invention
The automatic opening and closing device for the delivery pipeline valve of the concentrated solution additive for the hydraulic support solves the problems that manual opening and closing wastes time and manpower, and most pipeline valves are closed in a one-way mode, so that liquid is not tightly closed and is easy to leak.
In order to achieve the purpose, the invention adopts the following technical scheme:
automatic switching device of pipeline valve of concentrate additive for hydraulic support, including the pipeline, the fixed cover in outside of pipeline is equipped with the fixed block, biax motor is installed at the top of fixed block, biax motor's left side output shaft has the worm, biax motor's the fixed cover of right side output shaft is equipped with first helical gear, the top of fixed block is fixed with two first splint, two the internal rotation of first splint is connected with first gear, and first gear and worm meshing transmission, the support column is installed in the top left side of pipeline, the right side swing joint of support column has first rack, and first rack and first gear meshing transmission, the first dog of bottom fixedly connected with of first rack, the back of first rack is connected with the transfer line, the bottom of transfer line is connected with the second rack, the bottom of fixed block is fixed with two second splint, two the inside rotation of second splint is connected with the second gear, and second gear and second rack meshing transmission, the bottom sliding connection of fixed block has the third rack, and third rack and second gear meshing transmission, the top fixedly connected with second stopper of third rack, the top right side rotation of pipeline is connected with the transmission shaft, the top fixed cover of transmission shaft is equipped with the second helical gear, and second helical gear and first helical gear meshing transmission, the bottom fixedly connected with valve plate of transmission shaft.
Preferably, the first rotating shaft holes are formed in the two first clamping plates, the first rotating shaft is sleeved on the non-movable sleeve of the first rotating shaft holes, and the first gear is fixedly sleeved on the outer portion of the first rotating shaft.
Preferably, a first sliding groove is formed in the right side of the supporting column, a first sliding block is connected to the inside of the first sliding groove in a sliding mode, and a first rack is fixedly connected with the right side of the first sliding block.
Preferably, a first sliding groove is formed in the right side of the supporting column, a first sliding block is connected to the inside of the first sliding groove in a sliding mode, and a first rack is fixedly connected with the right side of the first sliding block.
Preferably, a second sliding groove is formed in the bottom of the fixing block, a second sliding block is connected to the inside of the second sliding groove in a sliding mode, and the second rack is fixedly connected to the right side of the second sliding block.
Preferably, two supporting blocks are installed at the back side of the fixing block, two through holes are formed in the supporting blocks, the transmission rod is movably sleeved inside the through holes, and a protective cover is sleeved outside the pipeline.
Preferably the sealing washer is installed around the valve plate, the trompil has been seted up at the top of pipeline, and the transmission shaft rotates to be connected inside the trompil.
1. According to the invention, the structure of the double-shaft motor, the first clamping plate, the first gear, the first rack and the like is arranged, so that the manual closing and opening of the valve are replaced, the valve can be opened and closed more quickly during working, and the working efficiency is increased.
2. The first valve can be closed, the second valve and the third valve can be closed at the same time by installing the structures of the first stop block, the transmission rod, the second rack, the second gear, the second stop block, the valve plate and the like, and the safety of the sealing of the pipeline valve can be ensured to the maximum extent.
In conclusion, the device can carry out the multiple closure of pipeline valve when replacing artifical closed valve, has effectively prevented the leakage of interior liquid of pipeline, has reduced the safe risk of production, helps the safe rapid operation of enterprise.
Drawings
Fig. 1 is a front view structural schematic diagram of a delivery pipeline valve automatic opening and closing device of a concentrated solution additive for a hydraulic bracket, which is provided by the invention;
fig. 2 is a schematic top view of the hydraulic bracket device according to the present invention, in which valves of a delivery pipe for a concentrate additive are automatically opened and closed, and fig. 2 is a schematic top view of the hydraulic bracket device according to the present invention.
Fig. 3 is a front view of the transmission rod of the device for hydraulic bracket according to the present invention, wherein the valve of the transmission pipeline of the concentrated solution additive is automatically opened and closed, and fig. 2 is a front view of the transmission rod of the device for hydraulic bracket according to the present invention.
In the figure: the device comprises a pipeline 1, a fixing block 2, a double-shaft motor 3, a worm 4, a first helical gear 5, a first clamping plate 6, a first gear 7, a supporting column 8, a first rack 9, a first stop block 10, a transmission rod 11, a second rack 12, a second clamping plate 13, a second gear 14, a third rack 15, a second stop block 16, a transmission shaft 17, a second helical gear 18, a valve plate 19, a first rotating shaft 20, a first sliding groove 21, a first sliding block 22, a second rotating shaft 23, a second sliding groove 24, a second sliding block 25, a supporting block 26 and a protective cover 27.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, the automatic opening and closing device for the valve of the delivery pipeline of the concentrated solution additive for the hydraulic bracket comprises a pipeline 1, a fixed block 2 is fixedly sleeved outside the pipeline 1, a double-shaft motor 3 is installed at the top of the fixed block 2, a worm 4 is connected to a left output shaft of the double-shaft motor 3, a first helical gear 5 is fixedly sleeved on a right output shaft of the double-shaft motor 3, two first clamping plates 6 are fixed at the top of the fixed block 3, a first gear 7 is rotatably connected inside the two first clamping plates 6, the first gear 7 is in meshing transmission with the worm 4, a support column 8 is installed at the left side of the top of the pipeline 1, a first rack 9 is movably connected at the right side of the support column 8, the first rack 9 is in meshing transmission with the first gear 5, a first stop block 10 is fixedly connected at the bottom of the first rack 9, a transmission rod 11 is, the bottom of fixed block 2 is fixed with two second splint 13, the internal rotation of two second splint 13 is connected with second gear 14, and second gear 14 and the transmission of 12 meshes of second rack, the bottom sliding connection of fixed block 2 has third rack 15, and third rack 15 and the transmission of 14 meshes of second gear, the top fixedly connected with second stopper 16 of third rack 15, the top right side of pipeline 1 rotates and is connected with transmission shaft 17, the fixed cover in top of transmission shaft 17 is equipped with second helical gear 18, and second helical gear 18 and the transmission of 5 meshes of first helical gear, the bottom fixedly connected with valve plate 19 of transmission shaft 17.
In this embodiment, the two first clamping plates 6 are provided with a first rotating shaft hole inside, the first rotating shaft hole is provided with a first rotating shaft 20 in a non-moving sleeve manner, and the first gear 7 is fixedly arranged outside the first rotating shaft 20 in a sleeve manner.
In this embodiment, the right side of the supporting column 8 is provided with a first sliding groove 21, the inside of the first sliding groove 21 is slidably connected with a first sliding block 22, and the first rack 9 is fixedly connected with the right side of the first sliding block 22.
In this embodiment, the right side of the supporting column 8 is provided with a first sliding groove 21, the inside of the first sliding groove 21 is slidably connected with a first sliding block 22, and the first rack 9 is fixedly connected with the right side of the first sliding block 22.
In this embodiment, the bottom of the fixing block 2 is provided with a second sliding groove 24, the inside of the second sliding groove 24 is slidably connected with a second sliding block 25, and the second rack 15 is fixedly connected to the right side of the second sliding block 25.
In this embodiment, two supporting blocks 26 are installed on the back side of the fixing block 2, through holes are formed in the two supporting blocks 26, the transmission rod 11 is movably sleeved in the through holes, and the protection cover 27 is sleeved outside the pipeline 1.
In this embodiment, a sealing ring is installed around the valve plate 19, a hole is opened at the top of the pipeline 1, and the transmission shaft 17 is rotatably connected inside the hole.
Firstly, a double-shaft motor 3 rotates to drive a worm 4 to rotate, the worm 4 rotates to drive a first gear 7 to rotate, the first gear 7 rotates to drive a first rack 9 to move up and down, the first rack 9 moves up and down while driving a first stop dog 10 to move up and down to complete opening and closing of a pipeline 1, the first rack 9 moves up and down to drive a transmission rod 11 to move up and down, the transmission rod 11 moves up and down to drive a second rack 12 to move up and down, the second rack 12 moves up and down to drive a second gear 14 to rotate, the second gear 14 rotates to drive a third rack 15 to move up and down, the third rack 15 moves up and down to drive a second stop dog 16 to move up and down to complete secondary closing of the pipeline 1, the double-shaft motor 3 rotates to drive a right-side output shaft to rotate, the right-side output, transmission shaft 17 rotates and drives valve plate 19 and rotate, and valve plate 19 rotates and accomplishes the cubic closure to pipeline 1, and the device can carry out pipeline valve's closure many times when replacing artifical closed valve, has effectively prevented the leakage of liquid in the pipeline, has reduced the safe risk of production, helps the safe quick operation of enterprise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. Automatic switching device of pipeline valve of concentrate additive for hydraulic support, including pipeline (1), its characterized in that, the outside fixed cover of pipeline (1) is equipped with fixed block (2), double-shaft motor (3) is installed at the top of fixed block (2), the left side output shaft of double-shaft motor (3) has worm (4), the right side output shaft fixed cover of double-shaft motor (3) is equipped with first helical gear (5), the top of fixed block (3) is fixed with two first splint (6), two the inside rotation of first splint (6) is connected with first gear (7), and first gear (7) and worm (4) meshing transmission, support column (8) are installed on the left of the top of pipeline (1), the right side swing joint of support column (8) has first rack (9), and first rack (9) and first gear (5) meshing transmission, the bottom of the first rack (9) is fixedly connected with a first stop block (10), the back of the first rack (9) is connected with a transmission rod (11), the bottom of the transmission rod (11) is connected with a second rack (12), the bottom of the fixed block (2) is fixed with two second clamping plates (13), the two second clamping plates (13) are rotatably connected with a second gear (14), the second gear (14) is in meshing transmission with the second rack (12), the bottom of the fixed block (2) is slidably connected with a third rack (15), the third rack (15) is in meshing transmission with the second gear (14), the top of the third rack (15) is fixedly connected with a second stop block (16), the right side of the top of the pipeline (1) is rotatably connected with a transmission shaft (17), and the top of the transmission shaft (17) is fixedly sleeved with a second helical gear (18), and the second bevel gear (18) is in meshed transmission with the first bevel gear (5), and the bottom of the transmission shaft (17) is fixedly connected with a valve plate (19).
2. The automatic opening and closing device for the valve of the delivery pipeline of the concentrated solution additive for the hydraulic bracket as recited in claim 1, characterized in that a first rotating shaft hole is formed in the two first clamping plates (6), a first rotating shaft (20) is sleeved on the non-movable sleeve of the first rotating shaft hole, and the first gear (7) is fixedly sleeved on the outer part of the first rotating shaft (20).
3. The automatic opening and closing device for the valve of the delivery pipeline of the concentrated solution additive for the hydraulic bracket as recited in claim 1, wherein a first sliding groove (21) is formed in the right side of the supporting column (8), a first sliding block (22) is connected inside the first sliding groove (21) in a sliding manner, and the first rack (9) is fixedly connected with the right side of the first sliding block (22).
4. The automatic opening and closing device for the valve of the delivery pipe of the concentrated solution additive for the hydraulic bracket as recited in claim 1, wherein a second rotating shaft hole is formed inside the two second clamping plates (13), a second rotating shaft (23) is movably sleeved inside the second rotating shaft hole, and the second gear (14) is fixedly sleeved outside the second rotating shaft (23).
5. The automatic opening and closing device for the valve of the delivery pipeline of the concentrated solution additive for the hydraulic bracket as recited in claim 1, wherein a second sliding groove (24) is formed at the bottom of the fixed block (2), a second sliding block (25) is connected inside the second sliding groove (24) in a sliding manner, and the second rack (15) is fixedly connected to the right side of the second sliding block (25).
6. The automatic opening and closing device for the valve of the delivery pipeline of the concentrated solution additive for the hydraulic bracket as recited in claim 1, wherein two supporting blocks (26) are installed at the back side of the fixed block (2), through holes are formed in the two supporting blocks (26), the transmission rod (12) is movably sleeved in the through holes, and a protective cover (27) is sleeved outside the pipeline (1).
7. The automatic opening and closing device for the valve of the delivery pipeline of the concentrated solution additive for the hydraulic bracket as recited in claim 1 is characterized in that a sealing ring is installed around the valve plate (19), an opening is formed in the top of the pipeline (1), and the transmission shaft (17) is rotatably connected inside the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010726089.5A CN111853255A (en) | 2020-07-25 | 2020-07-25 | Automatic opening and closing device for concentrated solution additive conveying pipeline valve for hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010726089.5A CN111853255A (en) | 2020-07-25 | 2020-07-25 | Automatic opening and closing device for concentrated solution additive conveying pipeline valve for hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111853255A true CN111853255A (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010726089.5A Pending CN111853255A (en) | 2020-07-25 | 2020-07-25 | Automatic opening and closing device for concentrated solution additive conveying pipeline valve for hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111853255A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112870065A (en) * | 2021-01-13 | 2021-06-01 | 唐超琼 | Medicament quantitative injection device based on gynaecology and obstetrics's operation is used |
| CN114754187A (en) * | 2022-06-16 | 2022-07-15 | 华能平凉发电有限责任公司 | Control device for safe operation of valve |
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| DE3503752A1 (en) * | 1985-02-05 | 1986-08-07 | Gerhard 7520 Bruchsal Bühler | Orifice-regulating valve |
| US20110113543A1 (en) * | 2009-11-17 | 2011-05-19 | Blake Joseph S | Plumbing Fixture with Flush Valve Actuator and Methods of Calibrating Same |
| CN204025840U (en) * | 2014-08-29 | 2014-12-17 | 志远科技有限公司 | Electric Actuated Stop Valves |
| CN107091336A (en) * | 2017-06-29 | 2017-08-25 | 苏州知瑞光电材料科技有限公司 | A kind of valve suitable for multiple fluid environment |
| CN207333831U (en) * | 2017-11-01 | 2018-05-08 | 珠海璟润自动化设备有限公司 | A kind of self-tightening sealing valving |
| CN207961630U (en) * | 2018-01-15 | 2018-10-12 | 徐超 | A kind of superposing type valve actuator |
| CN207961546U (en) * | 2018-01-04 | 2018-10-12 | 江西黄龙油脂有限公司 | A kind of New-type boiler sluice gate |
| CN209041724U (en) * | 2018-11-02 | 2019-06-28 | 温州德力克阀门制造有限公司 | Pneumatic wafer knife gate valve |
-
2020
- 2020-07-25 CN CN202010726089.5A patent/CN111853255A/en active Pending
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| DE3503752A1 (en) * | 1985-02-05 | 1986-08-07 | Gerhard 7520 Bruchsal Bühler | Orifice-regulating valve |
| US20110113543A1 (en) * | 2009-11-17 | 2011-05-19 | Blake Joseph S | Plumbing Fixture with Flush Valve Actuator and Methods of Calibrating Same |
| CN204025840U (en) * | 2014-08-29 | 2014-12-17 | 志远科技有限公司 | Electric Actuated Stop Valves |
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| CN207961546U (en) * | 2018-01-04 | 2018-10-12 | 江西黄龙油脂有限公司 | A kind of New-type boiler sluice gate |
| CN207961630U (en) * | 2018-01-15 | 2018-10-12 | 徐超 | A kind of superposing type valve actuator |
| CN209041724U (en) * | 2018-11-02 | 2019-06-28 | 温州德力克阀门制造有限公司 | Pneumatic wafer knife gate valve |
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| Title |
|---|
| （苏）洛玛金: "《马弗炉的构造、运行和设计的基本原理》", 31 October 1957, 电力工业出版社（北京） * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112870065A (en) * | 2021-01-13 | 2021-06-01 | 唐超琼 | Medicament quantitative injection device based on gynaecology and obstetrics's operation is used |
| CN114754187A (en) * | 2022-06-16 | 2022-07-15 | 华能平凉发电有限责任公司 | Control device for safe operation of valve |
| CN114754187B (en) * | 2022-06-16 | 2022-09-09 | 华能平凉发电有限责任公司 | Control device for safe operation of valve |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201030 |
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| RJ01 | Rejection of invention patent application after publication |