CN203030264U - Gas-liquid reactor and magnetic drive device thereof - Google Patents
Gas-liquid reactor and magnetic drive device thereof Download PDFInfo
- Publication number
- CN203030264U CN203030264U CN 201220750878 CN201220750878U CN203030264U CN 203030264 U CN203030264 U CN 203030264U CN 201220750878 CN201220750878 CN 201220750878 CN 201220750878 U CN201220750878 U CN 201220750878U CN 203030264 U CN203030264 U CN 203030264U
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- driving equipment
- magnetic driving
- cage
- magnet steel
- steel assembly
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Abstract
The utility model provides a magnetic drive device. The magnetic drive device comprises an inner magnetic steel component, an outer magnetic steel component, a shielding cover, a bearing block, an upper bearing and a lower bearing. The outer magnetic steel component is covered outside the inner magnetic steel component; the shielding cover is disposed between the outer magnetic steel component and the inner magnetic steel component and covered outside the inner magnetic steel component; the bearing block is disposed at the bottom of the shielding cover and in sealing connection with the shielding cover, and a stirring shaft of the inner magnetic steel component is disposed in the bearing block; and the upper bearing and the lower bearing are arranged between the bearing block and the stirring shaft. According to the magnetic drive device, the shielding cover and the bearing block are two parts, so that the total length of the shielding cover is reduced, and inner magnetic steel in the shielding cover can be maintained and changed easily; the upper bearing is disposed at the bottom of the shielding cover, so that maintenance and changing of the upper bearing is facilitated, and maintenance and changing of parts in the shielding cover is facilitated by means of the magnetic drive device; and simultaneously, the shielding cover and the bearing block are two parts, so that requirements for strength of the shielding cover are reduced, and the shielding cover material selection range is expanded. The utility model further provides a gas-liquid reactor.
Description
Technical field
The utility model relates to the reactor technical field of sealing technology, more particularly, relates to a kind of gas-liquid reactor and magnetic driving equipment thereof.
Background technology
Along with the development of chemical industry technology, increasing chemical plant installations is tending towards maximizing, the serialization development.Continuous reaction apparatus is generally many reactor series connection, and when wherein the stirring seal member generation leakage of a reactor needed repairing, whole production line must stop production at once, and the loss that namely stops production is bigger.So the sealing reliability to continuous reaction apparatus is had relatively high expectations, particularly gas-liquid reactor.Advantages such as sealing is reliable because magnetic driving equipment has, handling safety generally adopt magnetic driving equipment (being also referred to as magnetic sealing device or magnetic drive device) to realize stirring sealing.
Magnetic driving equipment mainly comprises interior magnet steel assembly, the cage in the magnet steel assembly outside and cover in the outer steel assembly of cage outward in covering in.Wherein, cage is made by nonmagnetic substance; Interior magnet steel assembly comprises: the shaft that interior magnet steel, two ends link to each other with agitator with interior magnet steel respectively, realize upper bearing (metal) and lower bearing that shaft rotates, and place the inner pedestal of upper bearing (metal) and lower bearing, be used for the packing seal mechanism of sealing shaft and reactor.Power is magnet steel assembly and shaft in magnetic coupling is delivered to, and realizes the rotation of shaft, and then drives agitator work.But because rotary power is by the rotating excitation field transmission, cage can produce eddy current when cutting magnetic line, and eddy current makes the temperature of cage raise.The rotating speed of shaft is more high, and the temperature rise of cage is just more high, and when rotating speed reaches 500rpm when above, the higher temperature of cage descends and cisco unity malfunction the magnetic force of magnet steel, causes magnetic driving equipment to lose efficacy.
At present, in order to reduce the temperature rise of cage, cage and inner pedestal are designed to integral structure, thereby reduce the diameter of cage.Reduce the diameter of cage under the uniform pressure, then can reduce the thickness of cage, realize reducing the temperature rise of cage, avoid magnetic driving equipment to lose efficacy because the temperature of cage is higher.Magnetic driving equipment mainly comprises interior magnet steel assembly, the cage in the magnet steel assembly outside and cover in the outer steel assembly of cage outward in covering in.Wherein, cage is made by nonmagnetic substance.Interior magnet steel assembly comprises: interior magnet steel, the shaft that two ends link to each other with agitator with interior magnet steel respectively, realize upper bearing (metal) and lower bearing that shaft rotates, upper bearing (metal) links to each other with cage respectively with lower bearing, is used for the packing seal mechanism of sealing shaft and reactor.Wherein, upper bearing (metal) is positioned at the top of cage, and lower bearing is positioned at the bottom of cage.
But, cage and inner pedestal are designed to integral structure, make cage longer, namely the blind cavity configuration of cage inside is longer, make the parts of cage inside keep in repair and change than difficult, particularly cage inside interior magnet steel on the top and the upper bearing (metal) that is positioned at the cage top.
In addition, cage and inner pedestal are designed to integral structure, make cage integral body must adopt with a kind of metal material (because the part requirement intensity of spring bearing is very high, and processing characteristics is good, generally all have only metal material to satisfy), limited the cage Material Selection like this, cause low pressure to be regulated down, nonmetallic materials such as the carbon fiber that some no eddy current losses and antiseptic property are good, pottery, polytetrafluoroethylene (PTFE) can't be selected for use, make that the material range of choice of cage is narrower.
In sum, how to provide a kind of magnetic driving equipment, so that the maintenance of cage inner components and replacing are present those skilled in the art's problem demanding prompt solutions.
The utility model content
The purpose of this utility model provides a kind of magnetic driving equipment, so that the maintenance of cage inner components and replacing.Another purpose of the present utility model provides a kind of gas-liquid reactor with above-mentioned magnetic driving equipment.
To achieve these goals, the utility model provides following technical scheme:
A kind of magnetic driving equipment comprises: interior magnet steel assembly and cover in outward described in the outer steel assembly of magnet steel assembly; Described outer steel assembly and described between the magnet steel assembly, and cover in outward described in the cage of magnet steel assembly;
Be positioned at the bottom of described cage and the bearing block that links to each other with described cage sealing, the shaft of described interior magnet steel assembly is positioned at described bearing block;
Lay respectively at upper bearing (metal) and lower bearing between described bearing block and the described shaft.
Preferably, above-mentioned magnetic driving equipment also comprises the outer frame that covers in described outer steel assembly; The bottom of described cage is provided with boss, and described frame is withheld on described boss; Described frame links to each other by threaded connector with described bearing block.
Preferably, in the above-mentioned magnetic driving equipment, described cage links to each other with described bearing block sealing by O type circle.
Preferably, in the above-mentioned magnetic driving equipment, the top of described cage is provided with the exhaust outlet for vent gas.
Preferably, in the above-mentioned magnetic driving equipment, the turbo blade that the lower surface of the gland of described interior magnet steel assembly is provided with; The interior magnet steel matrix of magnet steel assembly is provided with some through holes in described, and described through hole runs through top and the bottom of described interior magnet steel matrix.
Preferably, in the above-mentioned magnetic driving equipment, described frame is provided with cooling water inlet and coolant outlet, and wherein, described coolant outlet is higher than the interior magnet steel of described interior magnet steel assembly and the outer steel of described outer steel assembly respectively.
Preferably, in the above-mentioned magnetic driving equipment, the top of described frame is provided with the cooling water overfall, and described cooling water overfall is higher than described coolant outlet.
Preferably, in the above-mentioned magnetic driving equipment, the interface that the base of the mechanical sealing mechanism of described magnetic driving equipment is provided with cooling water jecket and is connected with described cooling water jecket.
Preferably, above-mentioned magnetic driving equipment comprises that also described thermometer is between described upper bearing (metal) and described lower bearing for detection of the thermometer of lubricating oil oil temperature.
Based on the above-mentioned magnetic driving equipment that provides, the utility model also provides a kind of gas-liquid reactor, comprises housing, the magnetic driving equipment that links to each other with described housing seal; Wherein, described magnetic driving equipment is above-mentioned any described magnetic driving equipment.
The magnetic driving equipment that the utility model provides comprises: interior magnet steel assembly and cover in outward in the outer steel assembly of magnet steel assembly; Between outer steel assembly and interior magnet steel assembly, and the cage of magnet steel assembly in covering in outward; Be positioned at the bottom of cage and the bearing block that links to each other with the cage sealing, the shaft of interior magnet steel assembly is positioned at bearing block; Lay respectively at upper bearing (metal) and lower bearing between described bearing block and the described shaft.
In the magnetic driving equipment that the utility model provides, cage and bearing block split arrange, be that cage and bearing block are two parts, the obvious like this overall length that reduces cage makes the interior magnet steel of interior magnet steel assembly of cage inside than easy-maintaining and replacing; Simultaneously upper bearing (metal) and lower bearing are arranged on the bearing block, bearing seat is in the bottom of cage, and namely upper bearing (metal) is positioned at the bottom of cage, and the top that is positioned at cage with the prior art upper bearing (metal) is compared, than easy-maintaining with replace with bearing.So the magnetic driving equipment that the utility model provides by with cage and bearing block split-type design, is convenient to maintenance and the replacing of cage inner components.
Simultaneously, in the magnetic driving equipment that the utility model provides, cage and bearing block are arranged as two parts, thereby reduced requirement to cage intensity, make cage can adopt nonmetallic materials, enlarged cage Material Selection scope.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the magnetic driving equipment that Fig. 1 provides for the utility model embodiment.
Among last Fig. 1:
Interior magnet steel matrix 1, interior magnet steel 2, cage 3, outer steel assembly 4, frame 5, upper bearing (metal) 6, thermometer 7, lower bearing 8, mechanical sealing mechanism 9, housing 10, shaft 11, cooling water jecket 12, interface 13, bearing block 14, O RunddichtringO 15, concora crush interface 16, cooling water inlet 17, gland 18, exhaust outlet 19, coolant outlet 20, shaft coupling 21, cooling water overfall 22, reductor 23.
The specific embodiment
The utility model embodiment provides a kind of magnetic driving equipment, is convenient to maintenance and the replacing of cage inner components.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to accompanying drawing 1, the structural representation of the magnetic driving equipment that Fig. 1 provides for the utility model embodiment.
The magnetic driving equipment that the utility model embodiment provides comprises: interior magnet steel assembly and cover in outward in the outer steel assembly 4 of magnet steel assembly; Between outer steel assembly 4 and interior magnet steel assembly, and the cage 3 of magnet steel assembly in covering in outward; Be positioned at the bottom of cage 3 and the bearing block 14 that links to each other with cage 3 sealings, the shaft 11 of interior magnet steel assembly is positioned at bearing block 14; Lay respectively at upper bearing (metal) 6 and lower bearing 8 between bearing block 14 and the shaft 11.
In the magnetic driving equipment that above-described embodiment provides, interior magnet steel assembly comprise interior magnet steel matrix 1, with the sheathed interior magnet steel 2 that is connected of the outer wall of interior magnet steel matrix 1 with the sheathed shaft that is connected 11 of the inwall of interior magnet steel matrix 1; Outer steel assembly 4 comprises outer steel matrix and the outer steel that links to each other with the outer steel matrix.
In the magnetic driving equipment that the utility model embodiment provides, cage 3 and bearing block 14 split settings, be that cage 3 and bearing block 14 are two parts, the obvious like this overall length that reduces cage 3 makes the interior magnet steel 2 of interior magnet steel assembly of cage 3 inside than easy-maintaining and replacing; Simultaneously upper bearing (metal) 6 and lower bearing 8 are arranged on the bearing block 14, bearing block 14 is positioned at the bottom of cage 3, and namely upper bearing (metal) 6 is positioned at the bottom of cage 3, and the top that is positioned at cage with the prior art upper bearing (metal) is compared, than easy-maintaining with replace with bearing 6.So the magnetic driving equipment that the utility model embodiment provides by with cage 3 and bearing block 14 split-type design, is convenient to maintenance and the replacing of cage 3 inner components.
Simultaneously, in the magnetic driving equipment that the utility model embodiment provides, cage 3 and bearing block 14 are arranged as two parts, thereby reduced requirement to cage 3 intensity, make cage 3 can adopt nonmetallic materials, enlarged cage 3 Material Selection scopes.
Preferably, the magnetic driving equipment that above-described embodiment provides also comprises the outer frame 5 that covers in outer steel assembly 4; The bottom of cage 3 is provided with boss, and frame 5 is withheld on boss; Frame 5 and bearing block 14 link to each other by threaded connector.Certainly, cage 3 and bearing block 14 also have other connected mode, and the connected mode of the cage 3 of the utility model embodiment and bearing block 14 does not limit particularly.
In the magnetic driving equipment that above-described embodiment provides, 14 sealings link to each other cage 3 with bearing block, preferably select cage 3 to link to each other with bearing block 14 sealings by O RunddichtringO 15.Certainly, cage 3 also can realize that sealing links to each other by other seal members with bearing block 14, and the utility model embodiment does not limit particularly to this.
In the magnetic driving equipment, general shaft 11 is realized linking to each other with housing 10 sealings of reactor by mechanical sealing mechanism 9, realizes isolating with the gas-phase space of reactor with this.Because the inner space of bearing block 14 and cage 3 is airtight, need to regulate the oil pressure of the lubricating oil that is used for lubricated upper bearing (metal) 6 and lower bearing 8.Preferably, the magnetic driving equipment that above-described embodiment provides also comprises compensator; Bearing block 14 is provided with for the concora crush interface 16 that is communicated with compensator near an end of upper bearing (metal) 6.Then the oil pressure of lubricating oil is communicated with compensator by concora crush interface 16, makes gaseous pressure maintenance balance in compensator and the reactor, and it is easier by reduction pressure reduction the seal fluid of mechanical sealing mechanism 9 to be lubricated, service life that can prolonged mechanical sealing mechanism 9.
Because the inside of cage 3 is confined space, cage 3 is full of lubricating oil with the inner space of bearing block 14, by lubricating oil cooling cage 3.In order to guarantee that cage 3 can lubricated oil is good must cool off, preferred, in the magnetic driving equipment that above-described embodiment provides, the top of cage 3 is provided with the exhaust outlet 19 for vent gas.Air by exhaust outlet 19 discharge cages 3 inside makes lubricating oil be full of cage 3 as far as possible, realizes the cooling to cage 3, thereby reduces the temperature rise of cage 3, guarantees the operate as normal of this magnetic driving equipment.
For the further cooling of strengthening cage 3, in the magnetic driving equipment that above-described embodiment provides, the turbo blade that the lower surface of the gland 18 of interior magnet steel assembly is provided with; The interior magnet steel matrix 1 of interior magnet steel assembly is provided with some through holes, top and the bottom of magnet steel matrix 1 in this through hole runs through.When interior magnet steel assembly rotates, gland 18 is along with rotation, be turbo blade rotation and produce negative pressure in the center, lubricating oil is flowed from top to bottom along the gap between cage 3 and the interior magnet steel 2, through hole along interior magnet steel matrix 1 flows from the bottom up again, form the interior circulation of lubricating oil, the temperature that makes cage 3 can hot-spot, has guaranteed the steady operation of this magnetic driving equipment.
In order further to optimize technique scheme, in the magnetic driving equipment that above-described embodiment provides, frame 5 is provided with cooling water inlet 17 and coolant outlet 20, wherein, and the interior magnet steel 2 of magnet steel assembly and the outer steel of outer steel assembly 4 in coolant outlet 20 is higher than respectively.Be full of cooling water in the gap between frame 5 and outer steel assembly 4, make cooling water from the cooling water inlet 17 inflow frames 5 of frame 5 and the gap between the outer steel assembly 4, and cooling water is through the coolant outlet 20 outflow frames 5 on the frame 5 and the gap between the outer steel assembly 4, thereby realize circulating in the gap of cooling water between frame 5 and outer steel assembly 4, make that the temperature of outer steel assembly 4 can be not too high, effectively guaranteed the steady operation of this magnetic driving equipment.In order to make the temperature of outer steel assembly 4 more even, preferentially select magnet steel 2 and outer steel in coolant outlet 20 is higher than respectively.
In order to prevent that cooling water from overflowing from the flange face at frame 5 tops, in the magnetic driving equipment that above-described embodiment provides, the top of frame 5 is provided with cooling water overfall 22, and cooling water overfall 22 is higher than coolant outlet 20.When cooling water more for a long time, cooling water can flow out gap between frames 5 and the outer steel assembly 4 from cooling water overfall 22.
In the magnetic driving equipment, general shaft 11 is realized linking to each other with housing 10 sealings of reactor by mechanical sealing mechanism 9, realizes isolating with the gas-phase space of reactor with this.When the reaction temperature of the inside reactor that links to each other with above-mentioned magnetic driving equipment is higher, in the magnetic driving equipment that above-described embodiment provides, the interface 13 that the base of the mechanical sealing mechanism 9 of magnetic driving equipment is provided with cooling water jecket 12 and is connected with cooling water jecket 12.Interface 13 is generally two, 13, one interfaces that cooling water flow out of 13 of interface that cooling water enters.By the cooling water in the cooling water jecket 12 mechanical sealing mechanism 9 is cooled off, guarantee the sealing property of mechanical sealing mechanism 9.
Preferably, in the magnetic driving equipment that above-described embodiment provides, comprise that also thermometer 7 is between upper bearing (metal) 6 and lower bearing 8 for detection of the thermometer 7 of lubricating oil oil temperature.Whether the temperature that thermometer can be judged lubricating oil by the temperature value of observing thermometer 7 overtemperature, thereby judges whether to stop this magnetic driving equipment work, is damaged to avoid this magnetic driving equipment.
Above-mentioned magnetic driving equipment generally drives 4 rotations of outer steel assembly by driver part, magnet steel assembly rotation in driving by outer steel assembly 4, thus realize the rotation of shaft 11, and then the agitator work that links to each other with shaft 11 of drive.Preferential selection driver part is motor, and motor is arranged at the top of frame 5, and links to each other with the outer steel assembly.Concrete, motor need link to each other with reductor 23, and reductor 23 links to each other with outer steel assembly 4 by shaft coupling 21.
The magnetic driving equipment that provides based on above-described embodiment, the utility model embodiment also provides a kind of gas-liquid reactor, comprises housing 10, the magnetic driving equipment that links to each other with housing 10 sealings, wherein, described magnetic driving equipment is the magnetic driving equipment described in above-described embodiment.
Because the magnetic driving equipment that provides of above-described embodiment has above-mentioned technique effect, above-mentioned gas-liquid reactor has above-mentioned magnetic driving equipment, and then the gas-liquid reactor that provides of the utility model embodiment also has corresponding technique effect, and this paper repeats no more.
In the gas-liquid reactor that above-described embodiment provides, general magnetic driving equipment links to each other with housing 10 sealings by mechanical sealing mechanism 9.Certainly, can adopt other sealing means, the utility model embodiment does not limit particularly to this yet.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments herein.Therefore, the utility model will can not be restricted to these embodiment as herein described, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. magnetic driving equipment comprises: interior magnet steel assembly and cover in outward described in the outer steel assembly of magnet steel assembly; It is characterized in that, also comprise:
Described outer steel assembly and described between the magnet steel assembly, and cover in outward described in the cage of magnet steel assembly;
Be positioned at the bottom of described cage and the bearing block that links to each other with described cage sealing, the shaft of described interior magnet steel assembly is positioned at described bearing block;
Lay respectively at upper bearing (metal) and lower bearing between described bearing block and the described shaft.
2. magnetic driving equipment as claimed in claim 1 is characterized in that, also comprises the outer frame that covers in described outer steel assembly; The bottom of described cage is provided with boss, and described frame is withheld on described boss; Described frame links to each other by threaded connector with described bearing block.
3. magnetic driving equipment as claimed in claim 1 is characterized in that, described cage links to each other with described bearing block sealing by O type circle.
4. magnetic driving equipment as claimed in claim 1 is characterized in that, the top of described cage is provided with the exhaust outlet for vent gas.
5. magnetic driving equipment as claimed in claim 4 is characterized in that, the turbo blade that the lower surface of the gland of described interior magnet steel assembly is provided with; The interior magnet steel matrix of magnet steel assembly is provided with some through holes in described, and described through hole runs through top and the bottom of described interior magnet steel matrix.
6. magnetic driving equipment as claimed in claim 1 is characterized in that, described frame is provided with cooling water inlet and coolant outlet, and wherein, described coolant outlet is higher than the interior magnet steel of described interior magnet steel assembly and the outer steel of described outer steel assembly respectively.
7. magnetic driving equipment as claimed in claim 6 is characterized in that, the top of described frame is provided with the cooling water overfall, and described cooling water overfall is higher than described coolant outlet.
8. as any described magnetic driving equipment among the claim 1-7, it is characterized in that the interface that the base of the mechanical sealing mechanism of described magnetic driving equipment is provided with cooling water jecket and is connected with described cooling water jecket.
9. magnetic driving equipment as claimed in claim 1 is characterized in that, comprises that also described thermometer is between described upper bearing (metal) and described lower bearing for detection of the thermometer of lubricating oil oil temperature.
10. a gas-liquid reactor comprises housing, the magnetic driving equipment that links to each other with described housing seal; It is characterized in that described magnetic driving equipment is as any described magnetic driving equipment among the claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220750878 CN203030264U (en) | 2012-12-31 | 2012-12-31 | Gas-liquid reactor and magnetic drive device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220750878 CN203030264U (en) | 2012-12-31 | 2012-12-31 | Gas-liquid reactor and magnetic drive device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203030264U true CN203030264U (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220750878 Expired - Lifetime CN203030264U (en) | 2012-12-31 | 2012-12-31 | Gas-liquid reactor and magnetic drive device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203030264U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174350A (en) * | 2014-08-28 | 2014-12-03 | 张家港汇普光学材料有限公司 | High-speed stirring device of reaction kettle |
| CN104226173A (en) * | 2014-09-19 | 2014-12-24 | 江苏胜开尔工业技术有限公司 | Magnetic sealing device for magnetic stirrer |
| CN105344301A (en) * | 2015-11-30 | 2016-02-24 | 南京威安新材料科技有限公司 | Efficient reaction still |
| CN110479197A (en) * | 2019-08-08 | 2019-11-22 | 恒华源化工设备(武汉)有限公司 | A kind of sealing device based on magnetic agitation transmission |
| CN116067577A (en) * | 2023-04-04 | 2023-05-05 | 广元市特种设备监督检验所 | Gas cylinder tightness detection device |
-
2012
- 2012-12-31 CN CN 201220750878 patent/CN203030264U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174350A (en) * | 2014-08-28 | 2014-12-03 | 张家港汇普光学材料有限公司 | High-speed stirring device of reaction kettle |
| CN104226173A (en) * | 2014-09-19 | 2014-12-24 | 江苏胜开尔工业技术有限公司 | Magnetic sealing device for magnetic stirrer |
| CN105344301A (en) * | 2015-11-30 | 2016-02-24 | 南京威安新材料科技有限公司 | Efficient reaction still |
| CN110479197A (en) * | 2019-08-08 | 2019-11-22 | 恒华源化工设备(武汉)有限公司 | A kind of sealing device based on magnetic agitation transmission |
| CN116067577A (en) * | 2023-04-04 | 2023-05-05 | 广元市特种设备监督检验所 | Gas cylinder tightness detection device |
| CN116067577B (en) * | 2023-04-04 | 2023-10-17 | 广元市特种设备监督检验所 | Gas cylinder tightness detection device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 310012 room 1101, Kangxin business building, No. 569, Wensan Road, Xihu District, Hangzhou, Zhejiang Province Patentee after: Hangzhou Yuanzheng Engineering Technology Equipment Co.,Ltd. Address before: 310012 room 1101, Kangxin business building, No. 569, Wensan Road, Xihu District, Hangzhou, Zhejiang Province Patentee before: HANGZHOU YUANZHENG CHEMICAL ENGINEERING TECHNOLOGY AND EQUIPMENT Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |
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| CX01 | Expiry of patent term |