CN112859943A - Pressure reducing device capable of self-adjusting according to internal pressure - Google Patents
Pressure reducing device capable of self-adjusting according to internal pressure Download PDFInfo
- Publication number
- CN112859943A CN112859943A CN202110039738.9A CN202110039738A CN112859943A CN 112859943 A CN112859943 A CN 112859943A CN 202110039738 A CN202110039738 A CN 202110039738A CN 112859943 A CN112859943 A CN 112859943A
- Authority
- CN
- China
- Prior art keywords
- pipe
- tooth
- tooth block
- self
- pressure
- 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
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/14—Control of fluid pressure with auxiliary non-electric power
- G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
-
- 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
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/04—Pressure vessels, e.g. autoclaves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a pressure reducing device capable of self-adjusting according to internal pressure, which comprises a motor and an air inlet pipe connected with a reaction vessel, wherein an exhaust pipe is vertically connected below the air inlet pipe, a communicating pipe for ventilation is arranged on the side wall of the air inlet pipe, an air storage pipe is arranged at the end part of the communicating pipe, a tooth block propelling pipe is arranged at the bottom of the air storage pipe, propelling teeth for filling are arranged in the tooth block propelling pipe, and an annular limiting ring is arranged at one end, far away from the air storage pipe, of the tooth block propelling pipe. When the output of the reaction vessel is overlarge, the air pressure in the air storage tube communicated with the communicating tube is increased, so that the pushing teeth in the tooth block pushing tube are pushed to move, the motor can drive the rotating disc to rotate under the action of the air pressure difference, the pushing teeth can move into the tooth block placing groove on the outer side wall of the side ring, the number of the meshing transmission circles of the rotating disc and the spherical gear is smaller, and the exhaust efficiency is lower.
Description
Technical Field
The invention relates to the technical field of internal pressure self-regulation, in particular to a pressure reducing device capable of self-regulating according to internal pressure.
Background
At present, in some chemical synthesis reaction processes, an operation reaction needs to be carried out in a high-pressure reaction vessel, but a phenomenon of generating a large amount of gas often occurs in the reaction process, so that the gas generated in the reaction vessel needs to be removed in time, but the gas generated by the reaction can further react with a reactant to generate a required compound, but the generated compound and the gas generate byproducts along with the continuation of the reaction, the yield is also reduced, and the existing technology cannot carry out balance at the two points;
firstly, the direct discharge of the generated gas is not beneficial to the chemical combination reaction in the reaction vessel to generate the required compound, so that the generated gas needs to be reserved to ensure that the gas and the reactant perform further reaction, and the gas cannot be discharged in the reaction vessel in a high-pressure state; when the generated gas reacts with the generated compound to generate a byproduct, the air pressure in the reaction vessel is reduced, and the gas needs to be discharged in time, but the existing device cannot automatically adjust according to the pressure value of the gas in the reaction vessel.
For this purpose, we have designed a pressure relief device that is self-regulating as a function of internal pressure.
Disclosure of Invention
The invention aims to solve the problem that gas can not be discharged in a reaction vessel under a high-pressure state, and gas is required to be discharged timely when the gas pressure in the reaction vessel is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pressure reducing device capable of self-adjusting according to internal pressure comprises a motor and an air inlet pipe connected with a reaction vessel, wherein an exhaust pipe is vertically connected below the air inlet pipe, a communicating pipe for ventilation is arranged on the side wall of the air inlet pipe, an air storage pipe is arranged at the end part of the communicating pipe, a tooth block pushing pipe is arranged at the bottom of the air storage pipe, pushing teeth for filling are arranged in the tooth block pushing pipe, an annular limiting ring is arranged at one end, away from the air storage pipe, of the tooth block pushing pipe, the output end of the motor is coaxially and fixedly connected with a rotating disc, the rotating disc is coaxially arranged and rotates with the annular limiting ring, the rotating disc comprises a base plate, a side ring, a plurality of tooth block placing grooves and a plurality of spring placing grooves, the base plate is coaxially arranged at the bottom of the side ring, the tooth block placing grooves are circumferentially arranged on the outer side wall of the side ring, and the spring placing grooves are correspondingly, be provided with compression spring in the spring standing groove, compression spring one end and spring standing groove tank bottom fixed connection, and the other end is the free end, the rolling disc is provided with meshing driven spherical gear for holding the trachea other end, spherical gear includes toothed plate, fixed orifices and a plurality of meshing tooth, the fixed orifices is coaxial begins on the toothed plate, and a plurality of meshing tooth are the circumference setting at the toothed plate lateral wall, the toothed plate surface is spherical curved surface, and toothed plate curved surface radian and side ring radian unanimity, it has the axis of rotation to alternate on the blast pipe, axis of rotation one end is through fixed orifices and spherical gear fixed connection, the axis of rotation lateral wall is provided with and is used for carminative spiral flabellum.
Preferably, the rotation direction of the spiral fan blade is opposite to the direction of the spherical gear.
Preferably, the meshing teeth on the spherical gear are in meshing transmission with the tooth block placing groove on the rotating disc.
Preferably, the annular limiting ring is fixedly connected with the tooth block pushing pipe through a tooth hole formed in the side wall, and a chamfer is formed in the tooth hole.
Preferably, the pushing teeth are matched with the tooth block placing grooves.
Preferably, the spring receiving groove penetrates through the top of the side ring.
Preferably, the inner diameter of the annular limiting ring is the same as the outer diameter of the rotating disc.
Preferably, the air inlet pipe is communicated with the interior of the air storage pipe through a communicating pipe and is communicated with the inner space of the gear block propelling pipe.
The invention has the beneficial effects that:
1. when the output of the reaction vessel is too large, the air pressure in the air storage tube communicated with the communicating tube is increased, so that the pushing teeth in the tooth block pushing tube are pushed to move, the motor can drive the rotating disc to rotate under the action of the air pressure difference, the pushing teeth can move into the tooth block placing groove on the outer side wall of the side ring, and the number of the meshing transmission circles of the rotating disc and the spherical gear is smaller, and the exhaust efficiency is lower.
2. When the air pressure is reduced, the pushing teeth in the tooth block placing groove can be popped out of the tooth block placing groove by the compression spring in the spring placing groove and enter a space left by the next pushing tooth due to movement in the tooth block pushing pipe, so that the number of the pushing teeth in the side ring can be automatically changed according to the air pressure in the reaction vessel, and further, the number of rotating circles of the spherical gear in meshing transmission with the rotating disc can be changed.
Drawings
FIG. 1 is a schematic structural diagram of a pressure relief device capable of self-adjusting according to internal pressure according to the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 1;
FIG. 4 is a schematic structural diagram of a rotating disk in a pressure reducing device capable of self-adjusting according to internal pressure according to the present invention;
FIG. 5 is a schematic structural diagram of a spherical gear in the pressure reducing device capable of self-adjusting according to internal pressure according to the present invention;
fig. 6 is a side view of a spherical gear in the pressure reducing device capable of self-adjusting according to the internal pressure.
In the figure: the device comprises a motor 1, a rotating disc 2, a chassis 21, a side ring 22, a tooth block placing groove 23, a spring placing groove 24, an annular limiting ring 3, an exhaust pipe 4, an air storage pipe 5, a communicating pipe 6, a tooth block pushing pipe 7, a spherical gear 8, a tooth panel 81, a fixing hole 82, a meshing tooth 83, a rotating shaft 9, a helical fan blade 10, a pushing tooth 11, a chamfer 12, a compression spring 13 and an air inlet pipe 14.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-6, a pressure reducing device capable of self-adjusting according to internal pressure, comprising a motor 1 and an air inlet pipe 14 connected with a reaction vessel, wherein an exhaust pipe 4 is vertically connected below the air inlet pipe 14, a communicating pipe 6 for ventilation is arranged on the side wall of the air inlet pipe 14, an air storage pipe 5 is arranged at the end part of the communicating pipe 6, a tooth block propulsion pipe 7 is arranged at the bottom of the air storage pipe 5, the air inlet pipe 14 is communicated with the inside of the air storage pipe 5 through the communicating pipe 6 and is communicated with the internal space of the tooth block propulsion pipe 7, so that the pressure change in the reaction vessel can be effectively transmitted to the tooth block propulsion pipe 7 to generate subsequent reaction, and further linkage exhaust can be realized, and the gas quantity in the reaction vessel can achieve the.
Be provided with in the tooth piece propulsion pipe 7 and be used for the propulsion tooth 11 of packing, be convenient for impel tooth 11 motion, under the effect of atmospheric pressure difference, including motor 1 can drive rolling disc 2 and rotate, impel tooth 11 and can move to the tooth piece standing groove 23 on the lateral wall of side ring 22 in, will form the state that available tooth piece standing groove 23 figure differs on rolling disc 2, and then can influence spherical gear 8's meshing driven effect.
The tooth block propulsion pipe 7 is provided with the annular limiting ring 3 at one end far away from the gas storage pipe 5, the inner diameter of the annular limiting ring 3 is the same as the outer diameter of the rotating disc 2, and the tooth block placing groove 23 for preventing the propulsion teeth 11 from falling can be effectively formed.
The annular limiting ring 3 is fixedly connected with the tooth block propelling pipe 7 through a tooth hole arranged on the side wall, and a chamfer 12 is arranged on the tooth hole, so that in the rotating process of the propelling tooth 11 arranged in the tooth block placing groove 23, can completely enter the tooth block placing groove 23 under the pushing action of the chamfer 12, simultaneously the pushing teeth 11 at the rear part can automatically change the positions of the pushing teeth 11 in the tooth block pushing pipe 7 according to the change value of air pressure, when the air pressure is reduced, the pushing teeth 11 in the tooth block placing groove 23 can be popped out of the tooth block placing groove 23 by the compression spring 13 in the spring placing groove 24, enter into a space left by the next pushing teeth 11 in the tooth block pushing pipe 7 due to movement, therefore, the number of the pushing teeth 11 in the side ring 22 can be automatically changed according to the air pressure in the reaction vessel, and the rotating number of the spherical gear 8 which is meshed with the rotating disc 2 for transmission can be further changed.
The output of motor 1 and the coaxial fixed connection of rolling disc 2, rolling disc 2 and 3 coaxial settings of annular spacing collar and rotation, rolling disc 2 includes chassis 21, side ring 22, a plurality of tooth piece standing grooves 23 and a plurality of spring standing groove 24, the coaxial setting in side ring 22 bottom in chassis 21, a plurality of tooth piece standing grooves 23 are the circumference and arrange at side ring 22 lateral wall, the setting of 24 one-to-one of spring standing groove is at the 23 tank bottoms of tooth piece standing groove, impel tooth 11 and 23 looks adaptations of tooth piece standing groove, be convenient for like this impel that tooth 11 can be complete place in tooth piece standing groove 23.
The spring receiving groove 24 penetrates the top of the side ring 22, so that the meshing portion of the spherical gear 8 can be effectively blocked, and the rotation of the spherical gear 8 can be stopped because of the absence of the meshing condition.
Be provided with compression spring 13 in the spring standing groove 24, compression spring 13 one end and the 24 tank bottoms fixed connection of spring standing groove, and the other end is the free end, is convenient for push away tooth 11 in the tooth piece standing groove 23 in the tooth piece propulsion pipe 7.
The other end of the rotating disc 2, which is opposite to the gas storage tube 5, is provided with a spherical gear 8 in meshing transmission, the spherical gear 8 comprises a toothed panel 81, a fixing hole 82 and a plurality of meshing teeth 83, the fixing hole 82 is coaxial and starts on the toothed panel 81, the plurality of meshing teeth are circumferentially arranged on the outer side wall of the toothed panel 81, the meshing teeth 83 on the spherical gear 8 are in meshing transmission with the toothed block placing groove 23 on the rotating disc 2, and the gas in the exhaust tube 4 is conveniently exhausted by the rotation of the meshing teeth 83.
The surface of the gear panel 81 is a spherical curved surface, and the radian of the curved surface of the gear panel 81 is consistent with that of the side ring 22, so that the spherical gear 8 can be always in meshed transmission with the rotating disc 2 when rotating.
The exhaust pipe 4 is provided with a rotating shaft 9 in a penetrating manner, one end of the rotating shaft 9 is fixedly connected with the spherical gear 8 through a fixing hole 82, the outer side wall of the rotating shaft 9 is provided with a spiral fan blade 10 used for exhausting, the spiral fan blade 10 rotates back to the direction opposite to the spherical gear 8, so that gas in the air inlet pipe 14 is conveniently exhausted out of the reaction vessel, the number of the teeth 11 filled in the teeth placing grooves 23 is increased due to the change of the meshing number of the teeth placing grooves 23 on the spherical gear 8 and the rotating disc 2, the rotating number of the spiral fan blade 10 on the outer side wall of the rotating shaft 9 can be changed, the exhaust efficiency in the reaction vessel can be changed, when the pressure in the reaction vessel is increased, the number of the teeth 11 filled in the teeth placing grooves 23 is increased, the rotating disc 2 and the spherical gear 8 are smaller.
The working principle of the invention is as follows: firstly, gas generated by reaction in the reaction vessel enters the exhaust pipe 4 from the gas inlet pipe 14, the motor 1 drives the spherical gear 8 to rotate through the rotating disc 2, and then drives the spiral fan blades 10 on the outer side wall of the rotating shaft 9 to rotate, so that redundant gas can be exhausted, and the gas pressure in the reaction vessel can be effectively reduced.
It should be noted that, when the output in the reaction vessel is too large, the air pressure in the air storage tube 5 communicated with the communicating tube 6 will also increase, thus pushing the pushing teeth 11 in the tooth block pushing tube 7 to move, under the action of the air pressure difference, the motor 1 will drive the rotating disc 2 to rotate, and the pushing teeth 11 will move into the tooth block placing groove 23 on the outer side wall of the side ring 22;
furthermore, the annular limiting ring 3 is arranged on the outer side wall of the side ring 22, the annular limiting ring 3 is fixedly connected with the tooth block pushing pipe 7 through the tooth hole formed in the side wall, the tooth block placing groove 23 can effectively prevent the pushing teeth 11 from falling off, the chamfer 12 is formed in the tooth hole, the pushing teeth 11 placed in the tooth block placing groove 23 can completely enter the tooth block placing groove 23 under the pushing action of the chamfer 12 in the rotating process of the pushing teeth 11 placed in the tooth block placing groove 23, meanwhile, the pushing teeth 11 at the rear part can automatically change the position of the pushing teeth 11 in the tooth block pushing pipe 7 according to the change value of air pressure, when the air pressure is reduced, the pushing teeth 11 in the tooth block placing groove 23 can be popped out of the tooth block placing groove 23 by the compression spring 13 in the spring placing groove 24 and enter the space left by the next pushing teeth 11 in the tooth block pushing pipe 7 due to movement, so that the number of the pushing teeth 11 in the side ring 22 can be automatically changed according to the air pressure in the reaction vessel, and the number of rotations of the spherical gear 8 that is in mesh transmission with the rotating disk 2 can be changed.
It should be noted that the radian of the curved surface of the gear face plate 81 is consistent with the radian of the side ring 22, so that the spherical gear 8 can be ensured to be always in meshed transmission with the rotating disc 2 when rotating.
Further, because the meshing number of the tooth block placing grooves 23 on the spherical gear 8 and the rotating disc 2 is changed, the rotating number of turns of the spiral fan blades 10 on the outer side wall of the rotating shaft 9 can be changed, the exhaust efficiency in the reaction vessel can be changed, when the air pressure in the reaction vessel is increased, the number of the pushing teeth 11 filled in the tooth block placing grooves 23 is more, the meshing transmission number of turns of the rotating disc 2 and the spherical gear 8 is smaller, the exhaust efficiency is lower, and otherwise, the exhaust efficiency is higher.
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 (8)
1. The utility model provides a pressure relief device that can be from adjusting according to internal pressure, includes motor (1) and intake pipe (14) be connected with the reaction ware, its characterized in that, intake pipe (14) below is connected with blast pipe (4) perpendicularly, be provided with communicating pipe (6) that are used for ventilating on intake pipe (14) intake pipe lateral wall, communicating pipe (6) tip is provided with holds trachea (5), hold trachea (5) bottom and be provided with tooth piece propulsion pipe (7), be provided with in tooth piece propulsion pipe (7) and be used for the propulsion tooth (11) of packing, tooth piece propulsion pipe (7) are kept away from holding trachea (5) one end and are provided with annular spacing collar (3), motor (1) output and rolling disc (2) coaxial fixed connection, rolling disc (2) and annular spacing collar (3) coaxial setting and rotation, rolling disc (2) include chassis (21), The chassis (21) is coaxially arranged at the bottom of the side ring (22), the plurality of tooth block placing grooves (23) and the plurality of spring placing grooves (24) are circumferentially arranged on the outer side wall of the side ring (22), the spring placing grooves (24) are correspondingly arranged at the bottoms of the tooth block placing grooves (23) one by one, compression springs (13) are arranged in the spring placing grooves (24), one ends of the compression springs (13) are fixedly connected with the bottoms of the spring placing grooves (24), the other ends of the compression springs are free ends, the rotating disc (2) is provided with a spherical gear (8) which is in meshing transmission relative to the other end of the gas storage pipe (5), the spherical gear (8) comprises a tooth panel (81), a fixing hole (82) and a plurality of meshing teeth (83), the fixing hole (82) is coaxially arranged on the tooth panel (81), and the plurality of meshing teeth are circumferentially arranged on the outer side wall of the tooth panel (81), tooth panel (81) surface is spherical curved surface, and tooth panel (81) curved surface radian is unanimous with side ring (22) radian, it has axis of rotation (9) to alternate on blast pipe (4), fixed orifices (82) and spherical gear (8) fixed connection are passed through to axis of rotation (9) one end, axis of rotation (9) lateral wall is provided with and is used for carminative helical fan blade (10).
2. A pressure relief device self-adjustable according to internal pressure according to claim 1, characterized in that the direction of rotation of said helical blades (10) is back to the orientation of the spherical gear (8).
3. A pressure relief device that is self-adjusting according to internal pressure as in claim 1, characterized in that the meshing teeth (83) on the spherical gear (8) mesh with the tooth block placement groove (23) on the rotating disc (2).
4. The pressure reducing device capable of self-adjusting according to the internal pressure as claimed in claim 1, wherein the annular limiting ring (3) is fixedly connected with the tooth block pushing pipe (7) through a tooth hole formed in the side wall, and a chamfer (12) is formed in the tooth hole.
5. A pressure relief device, which is self-adjusting according to internal pressure, as claimed in claim 1, characterized in that said pushing teeth (11) are adapted to the tooth block receiving grooves (23).
6. A pressure relief device, self-adjustable according to internal pressure, as claimed in claim 1, characterized in that said spring placement groove (24) runs through the top of the side ring (22).
7. A pressure relief device, which is self-adjustable according to the internal pressure, as claimed in claim 1, wherein the inner diameter of the annular retainer ring (3) is the same as the outer diameter of the rotating disc (2).
8. The pressure reducing device capable of self-adjusting according to the internal pressure as claimed in claim 1, wherein the air inlet pipe (14) is communicated with the inside of the air storage pipe (5) through a communicating pipe (6) and is communicated with the internal space of the gear block propelling pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110039738.9A CN112859943A (en) | 2021-01-13 | 2021-01-13 | Pressure reducing device capable of self-adjusting according to internal pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110039738.9A CN112859943A (en) | 2021-01-13 | 2021-01-13 | Pressure reducing device capable of self-adjusting according to internal pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112859943A true CN112859943A (en) | 2021-05-28 |
Family
ID=76003098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110039738.9A Pending CN112859943A (en) | 2021-01-13 | 2021-01-13 | Pressure reducing device capable of self-adjusting according to internal pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112859943A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115025719A (en) * | 2022-06-01 | 2022-09-09 | 山东瑞兴阻燃科技有限公司 | Pressure reduction reaction device for preparing diphenyl cresylphosphate |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4824331A (en) * | 1987-07-29 | 1989-04-25 | Hydreco, Incorporated | Variable discharge gear pump with energy recovery |
| CN102114896A (en) * | 2011-02-10 | 2011-07-06 | 朱永章 | Electromagnetic spring/touch rod-type speed-up machine for electric vehicle |
| CN208879969U (en) * | 2018-09-04 | 2019-05-21 | 王晗 | A kind of electrical engineering automatic welding machine |
| CN210080907U (en) * | 2019-05-23 | 2020-02-18 | 烟台华创智能装备有限公司 | Exhaust device of overpressure-preventing vacuum reflux furnace |
| CN210291416U (en) * | 2019-06-05 | 2020-04-10 | 天津泰达滨海清洁能源集团有限公司 | Natural gas conveying air pressure adjusting device |
| CN111658854A (en) * | 2020-07-16 | 2020-09-15 | 曹长芹 | Gastroenterology is clinical with stomach pressure relief device |
| CN111981453A (en) * | 2020-08-20 | 2020-11-24 | 唐泽东 | Vapor output is equipped with adjustable atmospheric pressure |
-
2021
- 2021-01-13 CN CN202110039738.9A patent/CN112859943A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4824331A (en) * | 1987-07-29 | 1989-04-25 | Hydreco, Incorporated | Variable discharge gear pump with energy recovery |
| CN102114896A (en) * | 2011-02-10 | 2011-07-06 | 朱永章 | Electromagnetic spring/touch rod-type speed-up machine for electric vehicle |
| CN208879969U (en) * | 2018-09-04 | 2019-05-21 | 王晗 | A kind of electrical engineering automatic welding machine |
| CN210080907U (en) * | 2019-05-23 | 2020-02-18 | 烟台华创智能装备有限公司 | Exhaust device of overpressure-preventing vacuum reflux furnace |
| CN210291416U (en) * | 2019-06-05 | 2020-04-10 | 天津泰达滨海清洁能源集团有限公司 | Natural gas conveying air pressure adjusting device |
| CN111658854A (en) * | 2020-07-16 | 2020-09-15 | 曹长芹 | Gastroenterology is clinical with stomach pressure relief device |
| CN111981453A (en) * | 2020-08-20 | 2020-11-24 | 唐泽东 | Vapor output is equipped with adjustable atmospheric pressure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115025719A (en) * | 2022-06-01 | 2022-09-09 | 山东瑞兴阻燃科技有限公司 | Pressure reduction reaction device for preparing diphenyl cresylphosphate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112859943A (en) | Pressure reducing device capable of self-adjusting according to internal pressure | |
| CN201043140Y (en) | Automatic heat supplying integrated rotary kiln for charing and activation | |
| CN115920629B (en) | Urea injection device for nitrogen oxide conversion | |
| CN116726841A (en) | Preparation method and preparation device of lithium battery electrolyte additive | |
| CN108243680A (en) | Aspiration inhales kind and scoops kind of a combine precision seed-metering with machinery | |
| CN219414400U (en) | Solid-state hydrogen storage device | |
| CN117446948A (en) | Coal glycol nitric acid reduction purifying equipment | |
| CN208614224U (en) | A kind of movable orbiting scroll automatic processing apparatus | |
| CN208381391U (en) | A kind of valve | |
| CN212581881U (en) | Essence spices fermenting installation | |
| CN211116463U (en) | Air pump | |
| CN111622813A (en) | Low-temperature magnetization degradation furnace with power generation function | |
| CN216716251U (en) | Waste gas catalytic heat storage combustion device capable of improving combustion efficiency | |
| CN212244675U (en) | Device for improving vacuum precision | |
| CN213704679U (en) | Paper suction mechanism of paper container forming machine | |
| CN111964088A (en) | Smoke exhaust hood | |
| CN221557237U (en) | Novel medical carbon dioxide absorber | |
| CN213434406U (en) | Improved Grignard reagent reaction equipment | |
| CN216144190U (en) | Waste heat comprehensive recovery device in titanium sponge production process | |
| CN218863358U (en) | High-safety explosion venting valve | |
| CN209755886U (en) | High-pressure cyclopentane foaming machine with feeding mechanism | |
| CN216367375U (en) | Waste gas treatment device for laboratory | |
| CN220780251U (en) | Methanol synthesis reactor | |
| CN221131644U (en) | SNCR flue gas denitrification facility of roasting furnace | |
| CN114777520B (en) | Magnetic shoe sintering cooling tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |