CN110360357A - A kind of electric power electric pressure relief valve for transformer - Google Patents
A kind of electric power electric pressure relief valve for transformer Download PDFInfo
- Publication number
- CN110360357A CN110360357A CN201910657793.7A CN201910657793A CN110360357A CN 110360357 A CN110360357 A CN 110360357A CN 201910657793 A CN201910657793 A CN 201910657793A CN 110360357 A CN110360357 A CN 110360357A
- Authority
- CN
- China
- Prior art keywords
- magnet
- valve
- spring
- spool
- transformer
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0433—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with vibration preventing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0686—Braking, pressure equilibration, shock absorbing
- F16K31/0696—Shock absorbing, e.g. using a dash-pot
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
- F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Safety Valves (AREA)
Abstract
The present invention relates to field of electrical equipment, and disclose a kind of electric power electric pressure relief valve for transformer, including valve tube passage, casing, valve seat, valve cylinder and valve rod, the top of the valve cylinder inner cavity is equipped with by movable plate, the middle part of the valve cylinder inner cavity is equipped with positioning plate, and spring is equipped between positioning plate and spool, identical first magnet of magnetic pole and the second magnet are respectively equipped between movable plate and positioning plate.The electric power electric pressure relief valve for transformer, pass through the design of the first magnet, the second magnet and electromagnet, when spool is moved up by instantaneous impact in transformer, before spring is born to greatest extent, electrical elastic slice is contacted with electrical gasket, so that electromagnet, which is powered, generates suction with the first magnet, overcome the first magnet to the part repulsion of the second magnet, so that spring is not subject to maximum pressure, effectively spring is buffered, effectively ensure that spring can smoothly restPose, it is ensured that relief valve closes.
Description
Technical field
The present invention relates to field of electrical equipment, specially a kind of electric power electric pressure relief valve for transformer.
Background technique
Power transformer is that the alternating voltage (electric current) of a certain numerical value is become to the identical another or several numerical value of frequency
The equipment of different voltage (electric current), common oil-immersed transformer are discharged by thermometer, dehydrating breather, oil ga(u)ge, oil conservater, pressure
The structure compositions such as valve or explosion stack, gas relay, bushing, low-tension bushing, wherein pressure relief valve or explosion stack are to release
Inside transformer pressure is put, to prevent the equipment of fault spread, pressure relief valve is more advanced compared to explosion stack, its quality determines
The anti-danger coefficient of transformer.
Existing pressure relief valve working principle are as follows: when pressure is excessive, pressure relief valve is opened, and oil therefrom sprays, and is released
Power is bled off pressure, when pressure reduces, pressure relief valve is automatically closed, and wherein the closing of relief valve is acting force of the spring, by controlling bullet
The elastic force of spring is more than the value in certain value, and spring is further compressed, and relief valve opening releases stress.
However, there is the increase failure of pressure caused by major accident since pressure relief valve is directed to inside transformer,
When the failure, pressure is often larger to the temporary impact of pressure relief valve in transformer, and existing pressure relief valve relies solely on
Folding is realized in the elastic force effect of spring, when by instantaneous larger compression shock, only absorbs kinetic energy by the compression of spring, spring is very
It is well over ultimate strength, so that the fatigue resistance of spring reduces, causes spring to be difficult to restPose, may cause and release
Put valve closure it is not tight, outside air water enters in transformer, so that transformer damages.
Summary of the invention
The present invention provides a kind of electric power electric pressure relief valve for transformer, have convenient for instantaneously being pressed in buffering transformer
The advantages of power, solves the technical issues of mentioning in background technique.
The invention provides the following technical scheme: a kind of electric power electric pressure relief valve for transformer, including valve tube passage, set
Pipe, valve seat, valve cylinder and valve rod, the top of the valve cylinder inner cavity are equipped with by movable plate, and the middle part of the valve cylinder inner cavity is equipped with positioning
Plate, and between positioning plate and spool be equipped with spring, be respectively equipped between movable plate and positioning plate identical first magnet of magnetic pole and
The suction value of second magnet, the first magnet and the second magnet is greater than the value of elastic of spring, and positioning plate is equipped with electromagnet, described
Under electromagnet energized state to the suction of the first magnet less than the second magnet to the repulsion of the first magnet.
Preferably, valve rod, the top of the valve rod and the bottom by movable plate are fixedly connected in the middle part of the spool top
It is fixedly connected, the two sides at the top of the spool are fixedly connected to interlocking lever, and the top of the interlocking lever is equipped with electrical elastic slice.
Preferably, the top of the positioning plate is equipped with longitudinally movable locating piece, the top of the locating piece and electromagnetism
The bottom of iron is fixedly connected, and the two sides of the locating piece offer the through-hole above interlocking lever, is equipped with electricity in the through-hole
Property gasket, and when electrical gasket and interlocking lever contact, the coiling of interlocking lever, spool and electromagnet forms closed circuit.
Preferably, the middle part thread bush on the valve cylinder top is equipped with adjusting screw rod, the bottom end of the adjusting screw rod and passive
The top movable of plate connects.
The present invention have it is following the utility model has the advantages that
The electric power electric pressure relief valve for transformer, passes through the design of the first magnet, the second magnet and electromagnet, spool
When being moved up by instantaneous impact in transformer, before spring is born to greatest extent, electrical elastic slice is contacted with electrical gasket, so that
Electromagnet, which is powered, generates suction with the first magnet, overcomes the first magnet to the part repulsion of the second magnet, so that spring will not be held
By maximum pressure, effectively spring is buffered, has effectively ensured that spring can smoothly restPose, it is ensured that release
Valve closes；And after pressure release, because spring and spool move up one end distance, when spring first restPoses, spool and valve
Seat is contacting, and for existing pressure relief valve, the potential energy after effective reduction spring is pressurized makes spool impact valve
Seat causes spool and valve seat binding face to be damaged and influence the possibility of leakproofness, improves the service life of pressure relief valve.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is place's partial enlargement diagram of Fig. 1 of the present invention.
In figure: 1, valve tube passage；2, casing；201, valve seat；3, connecting shaft；4, valve cylinder；401, positioning wrap；5, passive
Plate；501, the first magnet；6, positioning plate；7, spool；701, valve rod；702, interlocking lever；703, electrical elastic slice；8, locating piece；
801, through-hole；802, electrical gasket；803, electromagnet；804, the second magnet；9, spring；10, adjusting screw rod.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of electric power electric pressure relief valve for transformer referring to FIG. 1-2, including valve tube passage 1, valve tube passage 1
Bottom is fixedly set on transformer, connects the heat dissipation oil of inside transformer, and the top of valve tube passage 1 is fixedly connected with casing 2,
The inside fixing sleeve of casing 2 is equipped with valve seat 201, and the top of casing 2 is fixedly connected with the connecting shaft 3 of equidistant arrangement, connecting shaft 3
Top is fixedly connected with valve cylinder 4, and the bottom of valve cylinder 4 is equipped with the positioning wrap 401 being located at outside connecting shaft 3, and positioning wrap 401
It is opening down, prevent extraneous rain penetration, be equipment damage, the top movable of 4 inner cavity of valve cylinder is set with by movable plate 5, valve cylinder 4
The middle part screw thread on top is socketed with adjusting screw rod 10, adjusts the height by movable plate 5 in valve cylinder 4 by rotation adjusting screw rod 10
Position, the middle part fixing sleeve of 4 inner cavity of valve cylinder are equipped with positioning plate 6, and the top of positioning plate 6 is equipped with longitudinally movable locating piece 8, fixed
The two sides army of position block 8 offers through-hole 801, and electrical gasket 802 is equipped in through-hole 801, and locating piece is fixedly connected in the middle part of 8 top
There is electromagnet 803, the top of electromagnet 803 is fixedly connected with the second magnet 804, is fixedly connected in the middle part of 5 bottom end of movable plate
The first magnet 501 above the second magnet 804, the magnetic pole and the magnetic pole under 803 energized state of electromagnet of the first magnet 501
On the contrary, and the first magnet 501 it is identical as the magnetic pole of the second magnet 804, when electromagnet 803 is not powered on, the first magnet 501 is to
Two magnet, 804 elastic force is greater than the elastic force of spring 9, it is ensured that the closure connecting shaft 3 that spool 7 can be stable, in spool 7 by transformer
When limiting oil pressure opening pressure release, when which is greater than the specified value of elastic of spring 9, electromagnet 803 is powered, with the first magnet
501 suction generated overcome the first magnet 501 to go forward side by side the elastic force of the second magnet 804 so that spring 9 is moved up with spool 7
Row buffering, it is ensured that spring 9 will not be when oil pressure increases pressure release suddenly in transformer, and spring 9 is compressed into largest deformation amount, thus
Cause the initial elastic force of spring 9 to decline, pressure release oily in transformer is impacted, and after pressure release, the inner cavity of valve cylinder 4 is set
There is the spool 7 for plugging valve seat 201, and be equipped with spring 9 between spool 7 and positioning plate 6, the middle part on 7 top of spool is fixed to be connected
It is connected to valve rod 701, the top movable of valve rod 701 is set with interlocking lever 702, and the top of interlocking lever 702 is consolidated with by the bottom of movable plate 5
Fixed connection, the top of spool 7 are fixedly connected with the interlocking lever 702 positioned at 701 two sides of valve rod, and the top of interlocking lever 702 is equipped with electricity
Property elastic slice 703, electrical elastic slice 703 contact after spool 7 moves up certain altitude with electrical gasket 802, at this time two interlocking levers
702, the coiling of spool 7 and electromagnet 803 forms closed circuit, and electromagnet 803, which is powered, generates magnetic force, offsets the first magnet 501
To the repulsion of the second magnet 804, so that it is guaranteed that spring 9 will not be compressed into largest deformation amount, making for spring 9 is effectively raised
With the service life, and after pressure release, because spring 9 and spool 7 move up one end distance, when spring first restPoses, spool 7 with
Valve seat 201 is contacting, and for existing pressure relief valve, the potential energy after effective reduction spring 9 is pressurized makes spool 7
Valve seat 201 is hit, causes spool 7 and 201 binding face of valve seat to be damaged and influence the possibility of leakproofness, improves pressure relief valve
Service life.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of electric power electric pressure relief valve for transformer, including valve tube passage (1), casing (2), valve seat (201), valve cylinder
(4) and spool (7), it is characterised in that: the top of valve cylinder (4) inner cavity is equipped with by movable plate (5), valve cylinder (4) inner cavity
Middle part be equipped with positioning plate (6), and equipped with spring (9) between positioning plate (6) and spool (7), by movable plate (5) and positioning plate (6)
Between be respectively equipped with identical first magnet (501) of magnetic pole and the second magnet (804), the first magnet (501) and the second magnet
(804) suction value is greater than the value of elastic of spring (9), and positioning plate (6) is equipped with electromagnet (803), the electromagnet (803)
Under energized state to the suction of the first magnet (501) less than the second magnet (804) to the repulsion of the first magnet (501).
2. a kind of electric power electric pressure relief valve for transformer according to claim 1, it is characterised in that: the spool
(7) it is fixedly connected in the middle part of top valve rod (701), company is fixed with by the bottom of movable plate (5) in the top of the valve rod (701)
It connects, the two sides at the top of the spool (7) are fixedly connected to interlocking lever (702), and the top of the interlocking lever (702) is equipped with electrically
Elastic slice (703).
3. a kind of electric power electric pressure relief valve for transformer according to claim 1, it is characterised in that: the positioning plate
(6) top is equipped with longitudinally movable locating piece (8), and the top of the locating piece (8) and the bottom of electromagnet (803) are fixed
Connection, the two sides of the locating piece (8) offer the through-hole (801) above interlocking lever (702), and the through-hole (801) is interior
Equipped with electrical gasket (802), and when electrical gasket (802) and interlocking lever (702) contact, interlocking lever (702), spool (7) and electricity
The coiling of magnet (803) forms closed circuit.
4. a kind of electric power electric pressure relief valve for transformer according to claim 1, it is characterised in that: the valve cylinder
(4) the middle part thread bush on top is equipped with adjusting screw rod (10), and the bottom end of the adjusting screw rod (10) is lived with by the top of movable plate (5)
Dynamic connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657793.7A CN110360357B (en) | 2019-07-20 | 2019-07-20 | Pressure relief valve for power electrical transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657793.7A CN110360357B (en) | 2019-07-20 | 2019-07-20 | Pressure relief valve for power electrical transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110360357A true CN110360357A (en) | 2019-10-22 |
| CN110360357B CN110360357B (en) | 2021-03-16 |
Family
ID=68221417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910657793.7A Active CN110360357B (en) | 2019-07-20 | 2019-07-20 | Pressure relief valve for power electrical transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110360357B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365512A (en) * | 2020-04-22 | 2020-07-03 | 周显双 | Electromagnetic valve for natural gas pipeline |
| CN111941998A (en) * | 2020-09-01 | 2020-11-17 | 王社 | Drive control device for letterpress printing machine |
| CN112002517A (en) * | 2020-08-11 | 2020-11-27 | 国家电网有限公司 | Lifting seat and transformer |
| CN112682610A (en) * | 2020-12-30 | 2021-04-20 | 翁爱媚 | Blow off pipe fixing device suitable for white spirit is made that can reduce impulsive force |
| CN114542731A (en) * | 2022-01-13 | 2022-05-27 | 中科首望无水染色智能装备(苏州)有限公司 | Double-electromagnetic-seal flash explosion device and working method |
| CN115788821A (en) * | 2022-12-22 | 2023-03-14 | 广州万固压缩机有限公司 | Large-inclination-angle compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6164322A (en) * | 1999-01-15 | 2000-12-26 | Saturn Electronic & Engineering, Inc. | Pressure relief latching solenoid valve |
| JP2002071050A (en) * | 2000-08-25 | 2002-03-08 | Techno Excel Co Ltd | Manual operation type water supply valve unit |
| JP2005114105A (en) * | 2003-10-09 | 2005-04-28 | Alps Electric Co Ltd | Solenoid valve device |
| JP2008249138A (en) * | 2007-02-20 | 2008-10-16 | Serac Group | Method and device for regulating pressure in container with liquid |
| CN107654716A (en) * | 2017-09-27 | 2018-02-02 | 无锡正大轴承机械制造股份有限公司 | A kind of magnetic valve of service life length |
| CN108278403A (en) * | 2018-02-09 | 2018-07-13 | 苏州睿斯合机电设备有限公司 | A kind of low energy consumption magnetic valve |
-
2019
- 2019-07-20 CN CN201910657793.7A patent/CN110360357B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6164322A (en) * | 1999-01-15 | 2000-12-26 | Saturn Electronic & Engineering, Inc. | Pressure relief latching solenoid valve |
| JP2002071050A (en) * | 2000-08-25 | 2002-03-08 | Techno Excel Co Ltd | Manual operation type water supply valve unit |
| JP2005114105A (en) * | 2003-10-09 | 2005-04-28 | Alps Electric Co Ltd | Solenoid valve device |
| JP2008249138A (en) * | 2007-02-20 | 2008-10-16 | Serac Group | Method and device for regulating pressure in container with liquid |
| CN107654716A (en) * | 2017-09-27 | 2018-02-02 | 无锡正大轴承机械制造股份有限公司 | A kind of magnetic valve of service life length |
| CN108278403A (en) * | 2018-02-09 | 2018-07-13 | 苏州睿斯合机电设备有限公司 | A kind of low energy consumption magnetic valve |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365512A (en) * | 2020-04-22 | 2020-07-03 | 周显双 | Electromagnetic valve for natural gas pipeline |
| CN111365512B (en) * | 2020-04-22 | 2022-09-09 | 慈溪市天行电器有限公司 | Electromagnetic valve for natural gas pipeline |
| CN112002517A (en) * | 2020-08-11 | 2020-11-27 | 国家电网有限公司 | Lifting seat and transformer |
| CN111941998A (en) * | 2020-09-01 | 2020-11-17 | 王社 | Drive control device for letterpress printing machine |
| CN112682610A (en) * | 2020-12-30 | 2021-04-20 | 翁爱媚 | Blow off pipe fixing device suitable for white spirit is made that can reduce impulsive force |
| CN114542731A (en) * | 2022-01-13 | 2022-05-27 | 中科首望无水染色智能装备(苏州)有限公司 | Double-electromagnetic-seal flash explosion device and working method |
| CN114542731B (en) * | 2022-01-13 | 2024-01-26 | 中科首望无水染色智能装备(苏州)有限公司 | Double-electromagnetic sealing flash explosion device and working method |
| CN115788821A (en) * | 2022-12-22 | 2023-03-14 | 广州万固压缩机有限公司 | Large-inclination-angle compressor |
| CN115788821B (en) * | 2022-12-22 | 2023-07-04 | 广州万固压缩机有限公司 | Large-inclination compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110360357B (en) | 2021-03-16 |
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210220 Address after: No. 228, Binjiang East Road, Jiujiang City, Jiangxi Province, 332004 Applicant after: JIUJIANG JIAN'AN PETROCHEMICAL ENGINEERING Co.,Ltd. Address before: 545000 no.14-1-1, Hexi Road, Liunan District, Liuzhou City, Guangxi Zhuang Autonomous Region Applicant before: Wu Wendi |
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