CN107872122A - A kind of Water Curtain Cooling Device of high-power frequency conversion motor stator - Google Patents

A kind of Water Curtain Cooling Device of high-power frequency conversion motor stator Download PDF

Info

Publication number
CN107872122A
CN107872122A CN201711054729.7A CN201711054729A CN107872122A CN 107872122 A CN107872122 A CN 107872122A CN 201711054729 A CN201711054729 A CN 201711054729A CN 107872122 A CN107872122 A CN 107872122A
Authority
CN
China
Prior art keywords
water
motor stator
frequency conversion
power frequency
conversion motor
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
Application number
CN201711054729.7A
Other languages
Chinese (zh)
Inventor
李玉霞
张志献
沈宜敏
尚衍飞
吕林
林霁暖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
QINGDAO CCS VFD MOTOR Co Ltd
Original Assignee
QINGDAO CCS VFD MOTOR Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by QINGDAO CCS VFD MOTOR Co Ltd filed Critical QINGDAO CCS VFD MOTOR Co Ltd
Priority to CN201711054729.7A priority Critical patent/CN107872122A/en
Publication of CN107872122A publication Critical patent/CN107872122A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/19Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

The invention discloses a kind of Water Curtain Cooling Device of high-power frequency conversion motor stator, and in particular to cooling devcie of motor technical field.The Water Curtain Cooling Device of the high-power frequency conversion motor stator, including left cooling end, right cooling end and water entering section, left cooling end and right cooling end are equipped with cavity and the projecting inward connecting portion of cavity, connecting portion is provided with the inlet opening being connected and aperture, water entering section includes main water inlet tube component, water-distribution block, left water inlet pipe component and right water inlet pipe component, after water entering section connection external water source, press water is introduced into water inlet, gush out afterwards from multiple apertures, water curtain is formed in the cavities, discharged from left bank conduit assembly and right drain assembly the bottom that water curtain is finally pooled to cavity, it is by forming cooling of the water curtain realization to motor in the periphery of motor stator, film-cooled heat is big, current are not easy to be obstructed, it is not easy to go here and there water, it is easy to safeguard.

Description

A kind of Water Curtain Cooling Device of high-power frequency conversion motor stator
Technical field
The present invention relates to cooling devcie of motor technical field, and in particular to a kind of water curtain of high-power frequency conversion motor stator is cold But device.
Background technology
At present, the cooling device of high-power frequency conversion motor stator is welded into using motor housing by inside and outside two layers of nesting more Shape structure, and Zigzag type or spiral water channel are processed on the sealing surface of internal layer, one end water inlet, other end draining.Its shortcoming It is that film-cooled heat is less than normal, current are easily obstructed and gone here and there water, not easy care;To prevent incrustation and corrosion, the requirement to quality of cooling water It is higher, once seepage occurs, it is not easy to be found in time, easily produces accident.
The content of the invention
The purpose of the present invention is to be directed to above-mentioned deficiency, it is proposed that a kind of to be realized by forming water curtain in the periphery of motor stator Cooling to motor, film-cooled heat is big, current are not easy to be obstructed, and is not easy to go here and there water, the high-power frequency conversion motor stator for being easy to safeguard Water Curtain Cooling Device.
The present invention specifically adopts the following technical scheme that:
A kind of Water Curtain Cooling Device of high-power frequency conversion motor stator, including left cooling end, right cooling end and water entering section, it is left Cooling end is symmetrical arranged with right cooling end, and the left cooling end includes the semicircular left inside laminate be arrangeding in parallel and left outside layer Plate, right cooling end include the semicircular right inner plating that be arranged in parallel and right lamina rara externa, between left inside laminate and left outside laminate, right Cavity is surrounded between inner plating and right lamina rara externa, left inside laminate at the top of right inner plating with being all provided with the projecting inward company of oriented cavity Socket part, connecting portion are provided with the inlet opening being connected and aperture, and the water entering section includes main water inlet tube component, water-distribution block, Zuo Jin Conduit assembly and right water inlet pipe component, main water inlet tube component are connected with the water inlet end of water-distribution block, left water inlet pipe component and right water inlet One end of tube assembly is connected with the water side of water-distribution block, and the other end is connected with corresponding inlet opening respectively, the bottom of left outside laminate Provided with left bank conduit assembly, the bottom of right lamina rara externa is provided with right drain assembly.
Preferably, labyrinth type is passed through between the left inside laminate and left outside laminate, between right inner plating and right lamina rara externa After seal groove nested encryptions, it is fixedly connected further through screw.
Preferably, the labyrinth sealing groove includes three groups long bar straight-flanked ring tooth and annular groove, the elongated rectangular shape of left outside laminate Ring tooth agrees with successively with long rectangle annular groove, ring tooth of the annular groove respectively with left inside laminate, the elongated rectangular shape ring tooth and ring of right lamina rara externa Groove agrees with successively with long rectangle annular groove, the ring tooth of right inner plating respectively, and the bottom for often locating annular groove is provided with sealing gasket.
Preferably, the left inside laminate and right inner plating surround a circular cylindrical cavity, and high-power frequency conversion motor stator is located at In cylindrical cavity body, the side that the left inside laminate and right inner plating press close to high-power frequency conversion motor stator is provided with semicircle shallow slot, Left percolating water matrix detection plate is inlaid with the semicircle shallow slot of left inside laminate, right seepage is inlaid with the semicircle shallow slot of right inner plating Water matrix detection plate.
Preferably, the bottom of the left outside laminate is provided with left automatic exhaust steam valve, and the bottom of right lamina rara externa is provided with right automatic row Air valve.
Preferably, the top of the left inside laminate and right inner plating is provided with a deep hole along toric axis direction, and deep hole is opened Mouth end is provided with screw thread, and left water inlet pipe component and right water inlet pipe component are connected by screw thread with deep hole.
Preferably, the bottom of the left inside laminate and right inner plating is provided with small one and large one two screwed holes, major thread hole point Be not connected with corresponding left bank conduit assembly, right drain assembly, minor thread hole respectively with corresponding left automatic exhaust steam valve component, Right automatic exhaust steam valve component is connected.
Preferably, the connecting portion of the left cooling end and right cooling end is equipped with alignment pin, and tight by pressing plate screw Gu.
Preferably, the left surface of the water-distribution block is provided with water pressure gauge.
Preferably, water entering section connection external water source after, press water is introduced into inlet opening, after gush out from multiple apertures, in sky Water curtain is formed in chamber, the bottom that water curtain is finally pooled to cavity is discharged from left bank conduit assembly and right drain assembly.
The present invention has the advantages that:
The present invention is easy to tear open using the nested connected mode of inside and outside two layers of semi-circular plate labyrinth type annular groove, sealed reliable Dress and maintenance.Pressure flow is gushed out behind inlet opening from multiple apertures, and water curtain, cooling effect are formed in inside and outside two layers of cavity Fruit is excellent, and current are not easy the water that is obstructed and goes here and there, and is easy to safeguard, avoids incrustation and corrosion.
In addition, by left and right side leak matrix detection plate and temperature measurement device, it can also realize and be detected in real time with timing, Be advantageous to find potential safety hazard in advance.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the Water Curtain Cooling Device of high-power frequency conversion motor stator;
Fig. 2 is the top view of the Water Curtain Cooling Device of high-power frequency conversion motor stator;
Fig. 3 is A-A longitdinal cross-section diagrams on the left of the Water Curtain Cooling Device of high-power frequency conversion motor stator;
Fig. 4 is B-B longitdinal cross-section diagrams on the right side of the Water Curtain Cooling Device of high-power frequency conversion motor stator.
Wherein, 101. left percolating water matrix detection plate, 102. left outside laminates, 103. left inside laminates, 104. screws, 105. is left Upper sealing gasket, 106. top board screws, 107. top boards, 108. upper right sealing gaskets, alignment pin on 109., 110. right inner platings, 111. right lamina rara externa, 112. right percolating water matrix detection plates, 113. right drain assemblies, 114. right automatic exhaust steam valves, 115. is right Lower seal pad, 116. times alignment pins, 117. lower-left sealing gaskets, 118. left automatic exhaust steam valves, 119. left bank conduit assemblies, 120. is big Power variable frequency motor stator, 201. border attachment screws, 202. left water inlet pipe components, 203. water pressure gauges, 204. main water inlet tube groups Part, 205. water-distribution blocks, 206. right water inlet pipe components, 301. the first sealing gaskets of upper left, the sealing gasket of 302. upper left the 3rd, 303. lower-lefts 3rd sealing gasket, 304. the first sealing gaskets of lower-left, 305. the second sealing gaskets of lower-left, 306. the second sealing gaskets of upper left, 401. upper rights First sealing gasket, the sealing gasket of 402. upper right the 3rd, the sealing gasket of 403. bottom right the 3rd, 404. the first sealing gaskets of bottom right, 405. bottom rights Second sealing gasket, 406. the second sealing gaskets of upper right.
Embodiment
The embodiment of the present invention is described further with specific embodiment below in conjunction with the accompanying drawings:
As Figure 1-Figure 4, a kind of Water Curtain Cooling Device of high-power frequency conversion motor stator, including it is left cooling end, right cold But portion and water entering section, left cooling end are symmetrical arranged with right cooling end, and the left cooling end includes the semicircular left side be arrangeding in parallel Inner plating 103 and left outside laminate 102, right cooling end include the semicircular right inner plating 110 be arrangeding in parallel and right lamina rara externa 111, cavity is surrounded between left inside laminate 103 and left outside laminate 102, between right inner plating 110 and right lamina rara externa 111, it is left inside It is all provided with the projecting inward connecting portion of oriented cavity at the top of laminate and right inner plating, connecting portion is provided with the inlet opening that is connected and small Hole, the water entering section include main water inlet tube component 204, water-distribution block 205, left water inlet pipe component 202 and right water inlet pipe component 206, Main water inlet tube component 204 is connected with the water inlet end of water-distribution block 205, one end of left water inlet pipe component 202 and right water inlet pipe component 206 It is connected with the water side of water-distribution block 205, the other end is connected with corresponding inlet opening respectively, and the bottom of left outside laminate is provided with left bank water Tube assembly 119, the bottom of right lamina rara externa 111 are provided with right drain assembly 113, and the left surface of water-distribution block 205 is provided with water pressure gauge 203。
By labyrinth sealing groove nested encryptions between left inside laminate and left outside laminate, load upper left in the seal groove of top Sealing gasket 105, lower-left sealing gasket 117 is loaded in sealed bottom groove, is fixedly connected further through screw 104.
Also by labyrinth sealing groove nested encryptions between right inner plating and right lamina rara externa, load in the seal groove of top right Upper sealing gasket 108, bottom right sealing gasket 115 is loaded in sealed bottom groove, then be fixedly connected by screw 104.
Labyrinth sealing groove includes three groups long bar straight-flanked ring tooth and annular groove, elongated rectangular shape ring tooth and the annular groove point of left outside laminate Do not agree with successively with long rectangle annular groove, the ring tooth of left inside laminate, the elongated rectangular shape ring tooth of right lamina rara externa and annular groove respectively with the right side Long rectangle annular groove, the ring tooth of laminate agree with successively, and the bottom for often locating annular groove is provided with sealing gasket.
Risen as high as the banks on the right side of left outside laminate by outside to inside processing ring successively, ring tooth, annular groove, ring tooth, big annular groove, on the left of left inside laminate By outside to inside processing land, annular groove, ring tooth, big annular groove successively.Left outside laminate is relatively entrenched in one with left inside laminate tooth, groove Rise, and the first sealing gasket of upper left 301, the second sealing gasket of upper left 306, the sealing gasket 302 of upper left the 3rd are being sequentially loaded on top; Bottom is sequentially loaded into the first sealing gasket of lower-left 304, the second sealing gasket of lower-left 305, the sealing gasket 303 of lower-left the 3rd;Then week is passed through Circle attachment screw 201 fastens the two.
Risen as high as the banks on the left of right lamina rara externa by outside to inside processing ring successively, ring tooth, annular groove, ring tooth, big annular groove, on the right side of right inner plating By outside to inside processing land, annular groove, ring tooth, big annular groove successively.Right lamina rara externa is relatively entrenched in one with right internal layer screw die, groove Rise, and the first sealing gasket of upper right 401, the second sealing gasket of upper right 406, the sealing gasket 402 of upper right the 3rd are being sequentially loaded on top; Bottom is sequentially loaded into the first sealing gasket of bottom right 404, the second sealing gasket of bottom right 405, the sealing gasket 403 of bottom right the 3rd;Then week is passed through Circle attachment screw 201 fastens the two.
Left inside laminate and right inner plating surround a circular cylindrical cavity, and high-power frequency conversion motor stator 120 is located at cylindrical cavity In vivo, the left inside laminate and right inner plating press close to the side of high-power frequency conversion motor stator 120 and are provided with semicircle shallow slot, left inside layer Left percolating water matrix detection plate 101 is inlaid with the semicircle shallow slot of plate, right percolating water is inlaid with the semicircle shallow slot of right inner plating Matrix detection plate 112.
The bottom of left outside laminate 102 is provided with left automatic exhaust steam valve 118, and the bottom of right lamina rara externa is provided with right automatic exhaust steam valve 114。
The top of left inside laminate 102 and right inner plating 110 is provided with a deep hole along toric axis direction, and the openend of deep hole is set There is screw thread, left water inlet pipe component 202 and right water inlet pipe component 206 are connected by screw thread with deep hole.
The bottom of left inside laminate and right inner plating is provided with small one and large one two screwed holes, major thread hole respectively with a corresponding left side Drain assembly, right drain assembly are connected, minor thread hole respectively with corresponding left automatic exhaust steam valve component, right automatic exhaust steam valve Component is connected.
The connecting portion of left cooling end and right cooling end is equipped with alignment pin, and is fastened by pressing plate with screw.Left cooling end Identical with right cooling end structure, they by the vertical plane of motor center to be symmetrical arranged.On two parts composition surface top There are upper alignment pin 109 and lower alignment pin 116 to connect respectively with bottom, and fastened by pressing plate 107 with screw 106.
Water entering section connection external water source after, press water is introduced into inlet opening, after gush out from multiple apertures, formed in the cavities Water curtain, the bottom that water curtain is finally pooled to cavity are discharged from left bank conduit assembly and right drain assembly.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck The variations, modifications, additions or substitutions that the technical staff in domain is made in the essential scope of the present invention, it should also belong to the present invention's Protection domain.

Claims (10)

1. a kind of Water Curtain Cooling Device of high-power frequency conversion motor stator, including left cooling end, right cooling end and water entering section, Zuo Leng But portion is symmetrical arranged with right cooling end, it is characterised in that the left cooling end includes the semicircular left inside laminate be arrangeding in parallel With left outside laminate, right cooling end includes the semicircular right inner plating be arrangeding in parallel and right lamina rara externa, left inside laminate and left outside layer Between plate, cavity is surrounded between right inner plating and right lamina rara externa, left inside laminate at the top of right inner plating with being all provided with oriented cavity Projecting inward connecting portion, connecting portion are provided with the inlet opening being connected and aperture, and the water entering section includes main water inlet tube component, matched somebody with somebody Water block, left water inlet pipe component and right water inlet pipe component, main water inlet tube component are connected with the water inlet end of water-distribution block, left water inlet pipe component It is connected with one end of right water inlet pipe component with the water side of water-distribution block, the other end is connected with corresponding inlet opening respectively, left outside layer The bottom of plate is provided with left bank conduit assembly, and the bottom of right lamina rara externa is provided with right drain assembly.
A kind of 2. Water Curtain Cooling Device of high-power frequency conversion motor stator as claimed in claim 1, it is characterised in that the left side Between inner plating and left outside laminate, between right inner plating and right lamina rara externa by labyrinth sealing groove nested encryptions after, again lead to Screw is crossed to be fixedly connected.
A kind of 3. Water Curtain Cooling Device of high-power frequency conversion motor stator as claimed in claim 2, it is characterised in that the fan Palace formula seal groove includes three groups long bar straight-flanked ring tooth and annular groove, the elongated rectangular shape ring tooth of left outside laminate and annular groove respectively with left inside layer Long rectangle annular groove, the ring tooth of plate agree with successively, the elongated rectangular shape ring tooth of right lamina rara externa and the annular groove long square with right inner plating respectively Shape annular groove, ring tooth agree with successively, and the bottom for often locating annular groove is provided with sealing gasket.
A kind of 4. Water Curtain Cooling Device of high-power frequency conversion motor stator as claimed in claim 3, it is characterised in that the left side Inner plating and right inner plating surround a circular cylindrical cavity, and high-power frequency conversion motor stator is located in cylindrical cavity body, described left inside The side that laminate and right inner plating press close to high-power frequency conversion motor stator is provided with semicircle shallow slot, is inlayed in the semicircle shallow slot of left inside laminate Embedded with left percolating water matrix detection plate, right percolating water matrix detection plate is inlaid with the semicircle shallow slot of right inner plating.
A kind of 5. Water Curtain Cooling Device of high-power frequency conversion motor stator as claimed in claim 1, it is characterised in that the left side The bottom of lamina rara externa is provided with left automatic exhaust steam valve, and the bottom of right lamina rara externa is provided with right automatic exhaust steam valve.
A kind of 6. Water Curtain Cooling Device of high-power frequency conversion motor stator as claimed in claim 1, it is characterised in that the left side The top of inner plating and right inner plating is provided with a deep hole along toric axis direction, and the openend of deep hole is provided with screw thread, left water inlet pipe Component and right water inlet pipe component are connected by screw thread with deep hole.
A kind of 7. Water Curtain Cooling Device of high-power frequency conversion motor stator as claimed in claim 1, it is characterised in that the left side The bottom of inner plating and right inner plating is provided with small one and large one two screwed holes, major thread hole respectively with corresponding left bank water pipe group Part, right drain assembly are connected, minor thread hole respectively with corresponding left automatic exhaust steam valve component, right automatic exhaust steam valve component phase Even.
A kind of 8. Water Curtain Cooling Device of high-power frequency conversion motor stator as claimed in claim 1, it is characterised in that the left side The connecting portion of cooling end and right cooling end is equipped with alignment pin, and is fastened by pressing plate with screw.
9. a kind of Water Curtain Cooling Device of high-power frequency conversion motor stator as claimed in claim 1, it is characterised in that described to match somebody with somebody The left surface of water block is provided with water pressure gauge.
10. a kind of Water Curtain Cooling Device of high-power frequency conversion motor stator as described in claim 1-9 any one, its feature Be, water entering section connection external water source after, press water is introduced into inlet opening, after gush out from multiple apertures, form water in the cavities Curtain, the bottom that water curtain is finally pooled to cavity are discharged from left bank conduit assembly and right drain assembly.
CN201711054729.7A 2017-11-01 2017-11-01 A kind of Water Curtain Cooling Device of high-power frequency conversion motor stator Pending CN107872122A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711054729.7A CN107872122A (en) 2017-11-01 2017-11-01 A kind of Water Curtain Cooling Device of high-power frequency conversion motor stator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711054729.7A CN107872122A (en) 2017-11-01 2017-11-01 A kind of Water Curtain Cooling Device of high-power frequency conversion motor stator

Publications (1)

Publication Number Publication Date
CN107872122A true CN107872122A (en) 2018-04-03

Family

ID=61753559

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711054729.7A Pending CN107872122A (en) 2017-11-01 2017-11-01 A kind of Water Curtain Cooling Device of high-power frequency conversion motor stator

Country Status (1)

Country Link
CN (1) CN107872122A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109038954A (en) * 2018-08-22 2018-12-18 襄阳世阳电机有限公司 A kind of Water Curtain Cooling Device of high-power frequency conversion motor stator
CN111327150A (en) * 2020-04-28 2020-06-23 房文中 Heat dissipation device for electromechanical equipment
CN111327149A (en) * 2020-04-28 2020-06-23 房文中 Heat dissipation method of electromechanical equipment

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08103053A (en) * 1994-09-30 1996-04-16 Suzuki Motor Corp Cooler of motor
DE19635196A1 (en) * 1996-08-30 1998-03-12 Audi Ag Cooling device for high-speed electric motor
JP2004229418A (en) * 2003-01-23 2004-08-12 Tamagawa Seiki Co Ltd Water-cooling structure of motor
CN103248165A (en) * 2013-05-13 2013-08-14 天津市松正电动汽车技术股份有限公司 Water-cooled machine water jacket structure and press mounting technology
CN103427558A (en) * 2012-05-24 2013-12-04 芜湖市宝艺游乐科技设备有限公司 Liquid-cooled motor
CN203387360U (en) * 2013-06-18 2014-01-08 德斯兰压缩机(上海)有限公司 Motor
CN204046323U (en) * 2014-08-11 2014-12-24 衢州科创工业设计服务有限公司 A kind of shock-absorbing motor seat with refrigerating function
CN104999051A (en) * 2015-07-23 2015-10-28 惠州市威盛工业有限公司 Low-pressure casting method for automobile motor casing and motor casing structure
CN107294321A (en) * 2016-04-13 2017-10-24 大众汽车有限公司 Manufacture method for the coolant jacket of motor and the coolant jacket for motor

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08103053A (en) * 1994-09-30 1996-04-16 Suzuki Motor Corp Cooler of motor
DE19635196A1 (en) * 1996-08-30 1998-03-12 Audi Ag Cooling device for high-speed electric motor
JP2004229418A (en) * 2003-01-23 2004-08-12 Tamagawa Seiki Co Ltd Water-cooling structure of motor
CN103427558A (en) * 2012-05-24 2013-12-04 芜湖市宝艺游乐科技设备有限公司 Liquid-cooled motor
CN103248165A (en) * 2013-05-13 2013-08-14 天津市松正电动汽车技术股份有限公司 Water-cooled machine water jacket structure and press mounting technology
CN203387360U (en) * 2013-06-18 2014-01-08 德斯兰压缩机(上海)有限公司 Motor
CN204046323U (en) * 2014-08-11 2014-12-24 衢州科创工业设计服务有限公司 A kind of shock-absorbing motor seat with refrigerating function
CN104999051A (en) * 2015-07-23 2015-10-28 惠州市威盛工业有限公司 Low-pressure casting method for automobile motor casing and motor casing structure
CN107294321A (en) * 2016-04-13 2017-10-24 大众汽车有限公司 Manufacture method for the coolant jacket of motor and the coolant jacket for motor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109038954A (en) * 2018-08-22 2018-12-18 襄阳世阳电机有限公司 A kind of Water Curtain Cooling Device of high-power frequency conversion motor stator
CN111327150A (en) * 2020-04-28 2020-06-23 房文中 Heat dissipation device for electromechanical equipment
CN111327149A (en) * 2020-04-28 2020-06-23 房文中 Heat dissipation method of electromechanical equipment
CN111327149B (en) * 2020-04-28 2021-07-30 吉林澳奇机电集团有限公司 Heat dissipation method of electromechanical equipment
CN111327150B (en) * 2020-04-28 2021-08-06 青岛永晟热交换器有限公司 Heat dissipation device for electromechanical equipment

Similar Documents

Publication Publication Date Title
CN107872122A (en) A kind of Water Curtain Cooling Device of high-power frequency conversion motor stator
CN103343705A (en) Method for sealing middle-split surface of steam turbine and sealing structure
CN104196732A (en) Pump with water cooling jacket
CN206387668U (en) Large-scale explosion separation motor housing hydraulic pressure test fixture
CN111425839A (en) Module integrated quick heating type electric boiler main machine and manufacturing process thereof
CN205578972U (en) Vacuum protection flange connections
CN204458522U (en) The water inlet-outlet segment structure of pump
CN206974259U (en) A kind of cooled plate without plug-hole welding
CN209244910U (en) A kind of sealing device and booster pump for booster pump
RU2497049C2 (en) Radiator section
CN205279751U (en) Anode furnace hydraulic pressure oil pipe with cover is pressed from both sides to water -cooling
RU2020105990A (en) ELECTRICITY PRODUCTION METHOD
RU2020106002A (en) ELECTRICITY PRODUCTION METHOD
RU2020105983A (en) ELECTRICITY PRODUCTION METHOD
RU2020105989A (en) ELECTRICITY PRODUCTION METHOD
CN202875004U (en) Soybean milk machine with air exhausting device
RU2020105968A (en) ELECTRICITY PRODUCTION METHOD
RU2020105969A (en) ELECTRICITY PRODUCTION METHOD
RU2020105971A (en) ELECTRICITY PRODUCTION METHOD
RU2020105992A (en) ELECTRICITY PRODUCTION METHOD
RU2020105978A (en) ELECTRICITY PRODUCTION METHOD
RU2020105982A (en) ELECTRICITY PRODUCTION METHOD
RU2020105972A (en) ELECTRICITY PRODUCTION METHOD
RU2020104576A (en) ELECTRICITY PRODUCTION METHOD
RU2020105993A (en) ELECTRICITY PRODUCTION METHOD

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
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20180403