CN112844239A - Hydrogenation device capable of accurately measuring hydrogenation amount - Google Patents
Hydrogenation device capable of accurately measuring hydrogenation amount Download PDFInfo
- Publication number
- CN112844239A CN112844239A CN202110015765.2A CN202110015765A CN112844239A CN 112844239 A CN112844239 A CN 112844239A CN 202110015765 A CN202110015765 A CN 202110015765A CN 112844239 A CN112844239 A CN 112844239A
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- fixed
- sleeve
- box
- inner box
- hydrogenation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
- B01J4/007—Feed or outlet devices as such, e.g. feeding tubes provided with moving parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a hydrogenation device capable of accurately measuring the hydrogenation amount, which comprises a base, an air duct, an electric air inlet valve, a through hole opening and closing control mechanism and an electric air outlet valve, wherein the air duct penetrates through the right side of an inner box and the right side of an outer box to be connected with a nitrogen storage air bag, the electric air inlet valve penetrates through the left side of the outer box to be connected with the inner box, a sleeve is fixed at the inner bottom of the inner box, the through hole opening and closing control mechanism is arranged on the outer side of the sleeve, and the electric air outlet valve penetrates through the bottom of the inner box to be communicated with the sleeve. This hydrogenation device of accurate measurement hydrogenation volume, ring baffle can reciprocate under the flexible effect of third electric flexible post, conveniently opens or closes the through-hole, can take out the sleeve with the hydrogen in the inner box during piston rebound in, closes the through-hole again after accomplishing the extraction operation of appointed volume hydrogen, opens electronic air outlet valve after, piston rebound, and the hydrogen in the sleeve can be in the relevant equipment of process sequence through air outlet pipe way and connecting tube this moment.
Description
Technical Field
The invention relates to the technical field related to hydrogenation devices, in particular to a hydrogenation device capable of accurately metering the hydrogenation amount.
Background
The reaction process of hydrogen and other compounds interaction is usually carried out in the presence of a catalyst, the hydrogenation reaction belongs to the category of reduction, and in the process of hydrogenation reaction by using related equipment, if hydrogen is insufficient, hydrogen needs to be supplied timely, so that a hydrogenation device is needed, the conventional hydrogenation device is inconvenient to accurately measure the hydrogenation amount, and the hydrogen is difficult to store in a proper temperature environment.
Disclosure of Invention
The invention aims to provide a hydrogenation device capable of accurately measuring the hydrogenation amount, so as to solve the problems that the conventional hydrogenation device proposed in the background art is inconvenient to accurately measure the hydrogenation amount and is difficult to store hydrogen in a proper temperature environment.
In order to achieve the purpose, the invention provides the following technical scheme: a hydrogenation device for accurately measuring the hydrogenation amount comprises a base, an air duct, an electric air inlet valve, a through hole opening and closing control mechanism and an electric air outlet valve,
the automatic temperature control device comprises a base, wherein self-locking rollers are fixed on the left side and the right side of the lower end face of the base, supports are fixed on the front side and the rear side of the upper end face of the base, an outer box is fixed on the top of each support, a temperature controller is fixed on the left side of the upper end face of the base through bolts, a fixed pipeline is fixed on the top of the temperature controller, the top of the fixed pipeline is connected with the bottom of the outer box through a gas transmission pipeline, an inner box is fixed on the inner side of the outer box, a control panel is fixed on the front end face of the outer box, a limiting frame and a nitrogen storage airbag are fixed on the right side of the outer box, and the nitrogen storage airbag is located;
the air duct penetrates through the right side of the inner box and the right side of the outer box and is connected with the nitrogen storage airbag, and the lower side of the inner top of the inner box is connected with the partition plate through the first electric telescopic column;
the electric air inlet valve penetrates through the left side of the outer box and is connected with the inner box, a hydrogen content detector and an air pressure detector are fixed on the right inner wall of the inner box, the hydrogen content detector is positioned on the upper side of the air pressure detector, a sleeve is fixed at the inner bottom of the inner box, the lower side of the inner top of the sleeve is connected with the piston through a second electric telescopic column, and meanwhile, a through hole is formed in the side face of the bottom of the sleeve;
the through hole opening and closing control mechanism is arranged on the outer side of the sleeve;
the bottom that electronic air outlet valve runs through the inner box link up with the sleeve mutually, and the bottom of electronic air outlet valve runs through and is fixed with the pipeline of giving vent to anger, and the right-hand member of the pipeline of giving vent to anger simultaneously is fixed with the connecting tube.
Preferably, the number of the self-locking rollers is four, and the four self-locking rollers are symmetrically arranged around the vertical central axis of the base.
Preferably, the gas transmission pipeline is fixed on the top of the fixed pipeline through a pipe hoop.
Preferably, the first electric telescopic columns are arranged in two numbers, and the two first electric telescopic columns are symmetrically arranged at the top of the inner box.
Preferably, the piston is attached to the inner wall of the sleeve.
Preferably, the through holes are evenly distributed on the sleeve.
Preferably, the through hole opening and closing control mechanism comprises an annular support plate, a third electric telescopic column and an annular baffle, the annular support plate is fixed on the outer side of the sleeve, and meanwhile the lower side of the annular support plate is connected with the annular baffle through the third electric telescopic column.
Preferably, the number of the third electric telescopic columns is two, and the two third electric telescopic columns are symmetrically arranged on the lower end face of the annular support plate.
Preferably, bear the box and fix the right side at the base up end, and bear the box and placed the group battery in, group battery electric connection has temperature controller, control panel, first electronic flexible post, electronic admission valve, hydrogen content detector, atmospheric pressure detector, the electronic flexible post of second, the electronic flexible post of third and electronic air outlet valve simultaneously.
Compared with the prior art, the invention has the beneficial effects that: the hydrogenation device for accurately metering the hydrogenation amount,
(1) the device is provided with a self-locking roller, an inner box, an electric air inlet valve, a hydrogen content detector, an air outlet pipeline and a connecting pipeline, the air outlet pipeline can be connected with relevant equipment by using the connecting pipeline after the device is moved to a required place by using the self-locking roller, the electric air inlet valve can be opened to introduce hydrogen into the inner box before the device is used, and the hydrogen content detector can detect the content of the hydrogen so as to ensure the purity of the hydrogen;
(2) the hydrogen gas can be introduced between the outer box and the inner box by matching the temperature controller, the fixed pipeline and the gas transmission pipeline, so that the hydrogen gas in the inner box can be in a proper temperature environment, and meanwhile, the top of the outer box is porous, so that the air can circulate;
(3) the hydrogen gas extraction device is provided with an inner box, a sleeve, a piston, a through hole, a third electric telescopic column, an annular baffle, an electric gas outlet valve, a gas outlet pipeline and a connecting pipeline, wherein the annular baffle can move up and down under the telescopic action of the third electric telescopic column, so that the through hole is convenient to open or close;
(4) be provided with inner box, nitrogen gas and store gasbag, vent pipe, baffle, sleeve and piston, the baffle can be divided into two with inner box inner space, when utilizing the piston to draw hydrogen in to the sleeve, the baffle moves down, and nitrogen gas this moment stores nitrogen gas in the gasbag and gets into inner box through vent pipe for the atmospheric pressure in the inner box keeps unanimous with outside atmospheric pressure.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is a schematic view of the front view of the present invention;
FIG. 3 is a schematic diagram of the right-view structure of the present invention;
FIG. 4 is a schematic top cross-sectional view of the present invention;
FIG. 5 is a schematic view of the connection structure of the sleeve, the second electric telescopic column, the piston, the third electric telescopic column and the annular baffle according to the present invention;
FIG. 6 is an enlarged view of the structure at A in FIG. 1 according to the present invention.
In the figure: 1. the base, 2, auto-lock gyro wheel, 3, the support, 4, the outer container, 5, temperature controller, 6, the bolt, 7, fixed pipeline, 8, gas transmission pipeline, 9, the ferrule, 10, the inner box, 11, control panel, 12, spacing frame, 13, nitrogen gas store the gasbag, 14, the vent pipe, 15, first electronic flexible post, 16, the baffle, 17, electronic admission valve, 18, hydrogen content detector, 19, the atmospheric pressure detector, 20, the sleeve, 21, second electronic flexible post, 22, the piston, 23, the through-hole, 24, through-hole open and close control mechanism, 2401, annular extension board, 2402, third electronic flexible post, 2403, annular baffle, 25, electronic air outlet valve, 26, the pipeline of giving vent to anger, 27, connecting tube, 28, bear the box, 29, the group battery.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a hydrogenation device of accurate measurement hydrogenation volume, as shown in figure 1, the left and right sides of terminal surface all is fixed with auto-lock gyro wheel 2 under the base 1, and both sides all are fixed with support 3 around the base 1 up end, the top of support 3 is fixed with outer container 4 simultaneously, auto-lock gyro wheel 2 is provided with four, and four auto-lock gyro wheels 2 are about the vertical axis symmetry setting of base 1, the device can remove to required place under auto-lock gyro wheel 2's effect, make the device's removal operation laborsaving convenient more.
As shown in fig. 1 and 2, a temperature controller 5 is fixed to the left side of the upper end surface of the base 1 by a bolt 6, and a fixed pipe 7 is fixed to the top of the temperature controller 5, meanwhile, the top of the fixed pipeline 7 is connected with the bottom of the outer box 4 through the gas transmission pipeline 8, the gas transmission pipeline 8 is fixed at the top of the fixed pipeline 7 through the pipe hoop 9, the gas transmission pipeline 8 and the fixed pipeline 7 can be connected together by screwing the pipe hoop 9, after the hydrogen is introduced into the inner box 10, the gas with proper temperature can be introduced between the outer box 4 and the inner box 10 by matching the temperature controller 5, the fixed pipeline 7 and the gas transmission pipeline 8, so that the hydrogen in the inner box 10 can be positioned at the inner side of the outer box 4 under proper temperature environment and the inner box 10 is fixed, and the front end face of the outer box 4 is fixed with a control panel 11, the right side of the outer box 4 is fixed with a limit frame 12 and a nitrogen gas storage airbag 13, and the nitrogen gas storage airbag 13 is positioned on the inner side of the limit frame 12.
According to fig. 1, 2 and 3, the vent pipe 14 penetrates through the right side of the inner box 10 and the right side of the outer box 4 to be connected with the nitrogen gas storage airbag 13, the lower side of the inner top of the inner box 10 is connected with the partition plate 16 through the first electric telescopic column 15, the two first electric telescopic columns 15 are symmetrically arranged at the inner top of the inner box 10, when the piston 22 is used for pumping hydrogen gas into the sleeve 20, the partition plate 16 can move downwards under the extension action of the first electric telescopic columns 15, at the moment, nitrogen gas in the nitrogen gas storage airbag 13 enters the inner box 10 through the vent pipe 14, and the internal and external air pressures of the device are kept consistent.
According to fig. 1, 2, 3 and 4, the electric air intake valve 17 penetrates through the left side of the outer box 4 to be connected with the inner box 10, a hydrogen content detector 18 and an air pressure detector 19 are fixed on the right inner wall of the inner box 10, the hydrogen content detector 18 is positioned on the upper side of the air pressure detector 19, a sleeve 20 is fixed on the inner bottom of the inner box 10, the lower side of the inner top of the sleeve 20 is connected with a piston 22 through a second electric telescopic column 21, a through hole 23 is formed in the side surface of the bottom of the sleeve 20, the piston 22 is attached to the inner wall of the sleeve 20, the piston 22 can move up and down under the telescopic action of the second electric telescopic column 21 to facilitate the extraction or auxiliary release of hydrogen, the through holes 23 are uniformly distributed on the sleeve 20, after the through holes 23 are opened, the piston 22 moves up under the contraction action of the second electric telescopic column 21, at this time, the hydrogen in the inner box 10 can enter the, meanwhile, the extraction amount of the hydrogen can be controlled by controlling the contraction degree of the second electric telescopic column 21.
As shown in fig. 1, 2, 3, 4 and 5, the through hole opening and closing control mechanism 24 is disposed outside the sleeve 20, the through hole opening and closing control mechanism 24 includes an annular support plate 2401, a third electric telescopic column 2402 and an annular baffle 2403, the annular support plate 2401 is fixed outside the sleeve 20, the lower side of the annular support plate 2401 is connected to the annular baffle 2403 through the third electric telescopic column 2402, the annular support plate 2401 can move up and down under the telescopic action of the third electric telescopic column 2402, so as to control the opening and closing of the through hole 23, the third electric telescopic columns 2402 are two, the two third electric telescopic columns 2402 are symmetrically disposed on the lower end face of the annular support plate 2401, and the annular support plate 2401 can move up and down more stably by using the two third electric telescopic columns 2402.
As shown in fig. 1, 2, 3, 4 and 6, the electric air outlet valve 25 penetrates the bottom of the inner box 10 to be communicated with the sleeve 20, the air outlet pipe 26 penetrates and is fixed at the bottom of the electric air outlet valve 25, the connecting pipe 27 is fixed at the right end of the air outlet pipe 26, the bearing box 28 is fixed at the right side of the upper end surface of the base 1, the battery pack 29 is placed in the bearing box 28, the temperature controller 5, the control panel 11, the first electric telescopic column 15, the electric air inlet valve 17, the hydrogen content detector 18, the air pressure detector 19, the second electric telescopic column 21, the third electric telescopic column 2402 and the electric air outlet valve 25 are electrically connected to the battery pack 29, and the battery pack 29 can convert direct current into alternating current under the action of the inverter to be used by the whole device, so as to ensure the normal operation of the device.
The working principle of the embodiment is as follows: when the hydrogenation device for accurately measuring the hydrogenation amount is used, the device is moved to a required place through the self-locking roller 2, the gas outlet pipeline 26 is connected with relevant equipment through the connecting pipeline 27, the battery pack 29 converts direct current into alternating current under the action of the inverter to be used by the whole device, the operation of the whole device is controlled through the operation control panel 11, the electric air inlet valve 17 is opened, hydrogen is introduced into the inner box 10, the hydrogen content detector 18 can detect the hydrogen content, the purity of the hydrogen is ensured, after the hydrogen is introduced, the electric air inlet valve 17 is closed, the temperature controller 5 is started, at the moment, gas with proper temperature can enter between the outer box 4 and the inner box 10 through the fixed pipeline 7 and the gas transmission pipeline 8 in sequence, the hydrogen in the inner box 10 can be in a proper temperature environment, and the top of the outer box 4 is porous, air can circulate, after the second electric telescopic column 21 is started, the second electric telescopic column 21 contracts to drive the piston 22 to move upwards so as to pump the hydrogen in the inner box 10 into the sleeve 20, meanwhile, the contraction degree of the second electric telescopic column 21 is controlled to control the pumping amount of the hydrogen, after the pumping operation of the specified amount of the hydrogen is completed, the third electric telescopic column 2402 is started, the third electric telescopic column 2402 extends to drive the annular baffle 2403 to move downwards so as to close the through hole 23, then the electric air outlet valve 25 is opened, the piston 22 moves downwards under the extension action of the second electric telescopic column 21, at the moment, the hydrogen in the sleeve 20 enters related equipment through the air outlet pipeline 26 and the connecting pipeline 27, when the piston 22 pumps the hydrogen into the sleeve 20, the partition 16 moves downwards under the extension action of the first electric telescopic column 15, at the moment, the nitrogen in the nitrogen storage airbag 13 enters the inner box 10 through the air inlet pipeline 14, so that the air pressure in the inner box 10 is consistent with the external air pressure, the air pressure detector 19 can detect the air pressure below the partition 16, thereby ensuring that the air pressure is normal, and the content which is not described in detail in this specification belongs to the prior art known to those skilled in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a hydrogenation device of accurate measurement hydrogenation volume, includes base (1), vent pipe (14), electronic admission valve (17), through-hole start-stop control mechanism (24) and electronic air outlet valve (25), its characterized in that:
the self-locking device comprises a base (1), wherein self-locking rollers (2) are fixed on the left side and the right side of the lower end face of the base (1), brackets (3) are fixed on the front side and the rear side of the upper end face of the base (1), meanwhile, the top of the bracket (3) is fixed with an outer box (4), the left side of the upper end surface of the base (1) is fixed with a temperature controller (5) through a bolt (6), the top of the temperature controller (5) is fixed with a fixed pipeline (7), meanwhile, the top of the fixed pipeline (7) is connected with the bottom of the outer box (4) through an air transmission pipeline (8), an inner box (10) is fixed on the inner side of the outer box (4), a control panel (11) is fixed on the front end face of the outer box (4), a limiting frame (12) and a nitrogen storage air bag (13) are fixed on the right side of the outer box (4), and the nitrogen storage air bag (13) is located on the inner side of the limiting frame (12);
the ventilation pipeline (14) penetrates through the right side of the inner box (10) and the right side of the outer box (4) and is connected with the nitrogen storage airbag (13), and the lower side of the inner top of the inner box (10) is connected with the partition plate (16) through a first electric telescopic column (15);
the electric air inlet valve (17) penetrates through the left side of the outer box (4) and is connected with the inner box (10), a hydrogen content detector (18) and a gas pressure detector (19) are fixed on the right inner wall of the inner box (10), the hydrogen content detector (18) is located on the upper side of the gas pressure detector (19), a sleeve (20) is fixed at the inner bottom of the inner box (10), the lower side of the inner top of the sleeve (20) is connected with a piston (22) through a second electric telescopic column (21), and meanwhile a through hole (23) is formed in the side face of the bottom of the sleeve (20);
the through hole opening and closing control mechanism (24), the through hole opening and closing control mechanism (24) is arranged on the outer side of the sleeve (20);
electronic air outlet valve (25), electronic air outlet valve (25) run through the bottom and sleeve (20) of inner box (10) and link up mutually, and the bottom of electronic air outlet valve (25) runs through and is fixed with outlet duct (26), and the right-hand member of outlet duct (26) is fixed with connecting tube (27) simultaneously.
2. The hydrogenation apparatus according to claim 1, wherein the hydrogen addition amount is accurately measured by: the four self-locking rollers (2) are arranged, and the four self-locking rollers (2) are symmetrically arranged relative to the vertical central axis of the base (1).
3. The hydrogenation apparatus according to claim 1, wherein the hydrogen addition amount is accurately measured by: the gas transmission pipeline (8) is fixed at the top of the fixed pipeline (7) through a pipe hoop (9).
4. The hydrogenation apparatus according to claim 1, wherein the hydrogen addition amount is accurately measured by: the first electric telescopic columns (15) are arranged in two numbers, and the two first electric telescopic columns (15) are symmetrically arranged at the inner top of the inner box (10).
5. The hydrogenation apparatus according to claim 1, wherein the hydrogen addition amount is accurately measured by: the piston (22) is attached to the inner wall of the sleeve (20).
6. The hydrogenation apparatus according to claim 1, wherein the hydrogen addition amount is accurately measured by: the through holes (23) are uniformly distributed on the sleeve (20).
7. The hydrogenation apparatus according to claim 1, wherein the hydrogen addition amount is accurately measured by: the through hole opening and closing control mechanism (24) comprises an annular support plate (2401), a third electric telescopic column (2402) and an annular baffle (2403), the annular support plate (2401) is fixed on the outer side of the sleeve (20), and meanwhile the lower side of the annular support plate (2401) is connected with the annular baffle (2403) through the third electric telescopic column (2402).
8. The hydrogenation apparatus according to claim 7, wherein the hydrogen addition amount is accurately measured by: the number of the third electric telescopic columns (2402) is two, and the two third electric telescopic columns (2402) are symmetrically arranged on the lower end face of the annular support plate (2401).
9. The hydrogenation apparatus according to claim 1, wherein the hydrogen addition amount is accurately measured by: bear box (28) and fix the right side at base (1) up end, and bear and place group battery (29) in box (28), group battery (29) electric connection has temperature controller (5), control panel (11), first electronic flexible post (15), electronic admission valve (17), hydrogen content detector (18), atmospheric pressure detector (19), electronic flexible post of second (21), electronic flexible post of third (2402) and electronic air outlet valve (25) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110015765.2A CN112844239A (en) | 2021-01-07 | 2021-01-07 | Hydrogenation device capable of accurately measuring hydrogenation amount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110015765.2A CN112844239A (en) | 2021-01-07 | 2021-01-07 | Hydrogenation device capable of accurately measuring hydrogenation amount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112844239A true CN112844239A (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110015765.2A Withdrawn CN112844239A (en) | 2021-01-07 | 2021-01-07 | Hydrogenation device capable of accurately measuring hydrogenation amount |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112844239A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117504727A (en) * | 2024-01-08 | 2024-02-06 | 大名县名鼎化工有限责任公司 | Quantitative hydrogenation device and method for hydrogenation reaction kettle |
-
2021
- 2021-01-07 CN CN202110015765.2A patent/CN112844239A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117504727A (en) * | 2024-01-08 | 2024-02-06 | 大名县名鼎化工有限责任公司 | Quantitative hydrogenation device and method for hydrogenation reaction kettle |
| CN117504727B (en) * | 2024-01-08 | 2024-03-08 | 大名县名鼎化工有限责任公司 | Quantitative hydrogenation device and method for hydrogenation reaction kettle |
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Application publication date: 20210528 |
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| WW01 | Invention patent application withdrawn after publication |