CN106762611B - A kind of Quimby pump - Google Patents

A kind of Quimby pump Download PDF

Info

Publication number
CN106762611B
CN106762611B CN201710013567.6A CN201710013567A CN106762611B CN 106762611 B CN106762611 B CN 106762611B CN 201710013567 A CN201710013567 A CN 201710013567A CN 106762611 B CN106762611 B CN 106762611B
Authority
CN
China
Prior art keywords
ring
oil
stationary
spring
axle sleeve
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.)
Active
Application number
CN201710013567.6A
Other languages
Chinese (zh)
Other versions
CN106762611A (en
Inventor
张落成
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.)
Jiangsu Hongsheng Pump Technology Co ltd
Original Assignee
JIANGSU HONGSHENG PUMP TECHNOLOGY 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 JIANGSU HONGSHENG PUMP TECHNOLOGY Co Ltd filed Critical JIANGSU HONGSHENG PUMP TECHNOLOGY Co Ltd
Priority to CN201710013567.6A priority Critical patent/CN106762611B/en
Publication of CN106762611A publication Critical patent/CN106762611A/en
Application granted granted Critical
Publication of CN106762611B publication Critical patent/CN106762611B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023Axial sealings for working fluid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0088Lubrication
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084Toothed wheels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Mechanical Sealing (AREA)

Abstract

The invention discloses a kind of Quimby pumps, including screw rod, the pump housing, pedestal, screw shaft and mechanical seal, the mechanical seal includes axle sleeve, stationary ring, stationary seat, rotating ring, spring and rotating seat, and the screw flight is multiple thread, and the stationary seat is equipped with oil groove;The spring is wave spring, and the configuration of the present invention is simple, screw flight is multiple thread, and transfer efficiency is higher, and by taking double thread as an example, efficiency improves 60%-70%, and energy-saving effect is significant, greatly reduces the grid electricity fee cost of enterprise;Dielectric leakage is avoided so that the maximum working pressure of the pump housing ensure that sealing effect up to 5MPa using the mechanical seal of single end face double outside framework oil seals, plays the effect of environmental protection;Oil lubrication is provided without plug-in hydraulic system, it is a degree of to reduce energy consumption, play the role of energy-efficient;Spring is wave spring, and wave spring is not likely to produce deformation and will not generate inclination, further avoids the leakage of medium.

Description

A kind of Quimby pump
Technical field
The present invention relates to a kind of pump housings, and in particular to a kind of Quimby pump.
Background technique
Pump is the machinery for conveying liquid or being pressurized liquid.It sends the mechanical energy of prime mover or other external energies to Liquid increases liquid energy.Pump is mainly used to convey the liquid such as water, oil, acid & alkali liquid, emulsion, suspended emulsion and liquid metal, Also liquid, gas mixture and the liquid containing suspended solids be can transport.Screw pump is volume type rotor pump, it be by by screw rod and The volume for the seal chamber that bushing is formed changes to suck and be discharged liquid.Screw pump by screw rod number be divided into single-screw (single screw) pump, it is double, Three and five-screw pump.The characteristics of screw pump is flow trim, pressure fluctuation is small, has that suction capacity, noise be low, the high-efficient, service life Long, reliable operation;And advantage that it is protruded does not form vortex, insensitive to the viscosity of medium when being pumped (conveying) medium, can transport high Viscous media.Current Quimby pump, due to generally providing pressure by multiple little springs at the rotating ring in mechanical seal, when installation It is more time-consuming, and using after the time of one end, these springs are easily deformed or tilt, it tends to generate leakage, thus at present The pump housing maximum working pressure it is lower, in 3.5MPa or so;In addition current screw rod is one start screw, and working efficiency is lower.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of Quimby pumps, solve the highest of prior art Quimby pump The problem that operating pressure is lower and working efficiency is lower.
The invention is realized by the following technical scheme:
A kind of Quimby pump, including screw rod, the pump housing, pedestal, screw shaft and mechanical seal, the mechanical seal include axis Set, stationary ring, stationary seat, rotating ring, spring and rotating seat, the screw flight are multiple thread, and the stationary seat is equipped with Oil groove;The spring is wave spring, and the top surface of the oil groove is in contact with axle sleeve, and the inside of oil groove is by the protruding block on stationary seat Closing, the outside of oil groove is closed by outside framework oil seal.
The present invention is further improved scheme, and the screw flight is double thread or three-start screw.
The present invention is further improved scheme, and the top that the stationary seat is located at oil groove is equipped with oil inlet intercommunicating pore, is located at oil The lower section of slot is equipped with fuel-displaced intercommunicating pore.
The further improvement project of the present invention is that the stationary seat is fixedly connected on pedestal, which is located at oil inlet company The top of through-hole is equipped with oil filler point, and the lower section that pedestal is located at fuel-displaced intercommunicating pore is equipped with drain oil, and oil filler point and drain oil are by plug screw Sealing.
The further improvement project of the present invention is that the axle sleeve is placed on pump shaft, and axle sleeve is successively cased with thereon from inside to outside Rotating seat, spring, removable insole pieces, rotating ring, stationary ring, stationary seat, outside framework oil seal and adjusting nut.
The further improvement project of the present invention is that the rotating seat is fixedly connected with axle sleeve by screw A;Spring, activity Gasket and rotating ring are set in rotating seat, and spring is pressed in removable insole pieces, and removable insole pieces are pressed on the medial surface of rotating ring, rotating ring Lateral surface is pressed on the medial surface of stationary ring, and stationary ring is located in stationary seat;Outside framework oil seal is two, and two outside framework oil seals are by retaining ring It is stuck in stationary seat, is enclosed by the lateral surface of the medial surface of the outside framework oil seal of inside, the bottom surface of oil groove and right side and axle sleeve Space forms an oil storage cavity;The outermost end of axle sleeve be connection bump, connection bump be equipped with threaded hole, soket head cap screw with Axle sleeve is fixed on pump shaft by threaded hole threaded connection, and connection bump is threadedly coupled with adjusting nut, and adjusting nut is equipped with solid Determine screw B.
The further improvement project of the present invention is that the material of the outside framework oil seal is fluorubber.
The further improvement project of the present invention is that O-ring A is equipped between the axle sleeve and pump shaft, the two of the stationary seat Be equipped with O-ring B and O-ring C between end and pedestal, be equipped with O-ring C between stationary seat and stationary ring, the rotating ring, removable insole pieces with And O-ring D is equipped between axle sleeve.
The further improvement project of the present invention is that the spring is the thin slice annular resilient metal that several Wave crest and wave troughs are constituted Element.
Compared with the prior art, the invention has the following advantages:
1, the configuration of the present invention is simple, screw flight are multiple thread, and transfer efficiency is higher, by taking double thread as an example, warp Known to experiment: original single-threaded Quimby pump can transport crude oil 150m per hour3Left and right, double spiral shells of existing double thread Bar pump can transport crude oil 250m per hour3Left and right, efficiency improve 60%-70%, and energy-saving effect is significant, greatly reduces the electricity of enterprise It is costly;
2, using the mechanical seal of single end face double outside framework oil seals, it ensure that sealing effect, so that the highest of the pump housing works Pressure avoids dielectric leakage up to 5MPa, plays the effect of environmental protection;Mechanical seal is isolated with pump chamber, from oil filler point toward oil groove Interior injection lubricating oil, plays the role of independent lubricating, does not depend on beaten medium lubrication, avoids original mechanical seal and pump chamber phase The problem of being even easy leakage by medium lubrication, even if existing, still can dally normal operation in the case where no medium, and Being tested the mechanical seal can operate normally without plug-in hydraulic system, provide lubrication without plug-in hydraulic system Oil lubrication, it is a degree of to reduce energy consumption, play the role of energy-efficient;
3, the oily independent lubricating in oil groove does not depend on beaten medium lubrication, when conveying crude oil, it can be ensured that in bunker Crude oil is completely transported;
4, spring is wave spring, and wave spring is not likely to produce deformation and will not generate inclination, further avoids the leakage of medium;
5, outside framework oil seal is two, and material is fluorubber, and the introducing of fluorine atom assigns the excellent heat resistance of rubber, resists Oxidisability, oil resistivity, corrosion resistance and resistance to weathering, it is ensured that the sealing at outside framework oil seal;
6, O-ring is installed additional in all possible leakage point, ensure that sealing effect.
The present invention is described further with reference to the accompanying drawings and examples.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the schematic diagram at pedestal.
Fig. 3 is the schematic diagram at mechanical seal.
Fig. 4 is wave spring schematic diagram.
Specific embodiment
In the description of the present invention, it is " inside " towards pump body, is " outside " towards pump housing outside, and only for just In the description present invention, rather than the device or element of indication or suggestion meaning must have a particular orientation.In addition, term is " dynamic Ring seat B ", " O-ring A ", " O-ring B ", " O-ring C " etc. are used for description purposes only, and are not understood to indicate or imply opposite Importance.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, the present invention includes screw rod 105, the pump housing 104, pedestal 103, screw shaft 101 And mechanical seal 102, the mechanical seal 102 include axle sleeve 1, stationary ring 15, stationary seat 16, rotating ring 14, spring 12 and move Ring seat 11, the screw thread of the screw rod 105 are multiple thread, and the stationary seat 16 is equipped with oil groove 17;The spring 12 is waveform The top surface of spring, the oil groove 17 is in contact with axle sleeve 1, and the inside of oil groove 17 is closed by the protruding block on stationary seat 16, oil groove 17 Outside closed by outside framework oil seal 5, the screw thread of the screw rod 105 is double thread or three-start screw, the stationary seat 16 It is equipped with oil inlet intercommunicating pore in the top of oil groove 17, is equipped with fuel-displaced intercommunicating pore positioned at the lower section of oil groove 17, the stationary seat 16 is fixed It is connected on pedestal 103, the top which is located at oil inlet intercommunicating pore is equipped with oil filler point 111, and pedestal 103 is located at fuel-displaced company The lower section of through-hole is equipped with drain oil 113, and oil filler point 111 is sealed with drain oil 113 by plug screw 112, and the axle sleeve 1 is placed on screw shaft On 101, axle sleeve 1 is successively cased with rotating seat 11, spring 12, removable insole pieces 13, rotating ring 14, stationary ring 15, stationary ring thereon from inside to outside Seat 16, outside framework oil seal 5 and adjusting nut 19, the rotating seat 11 are fixedly connected with axle sleeve 1 by screw A10;Spring 12 is lived Mobile gasket 13 and rotating ring 14 are set in rotating seat 11, and spring 12 is pressed in removable insole pieces 13, and removable insole pieces 13 are pressed on rotating ring 14 Medial surface on, the lateral surface of rotating ring 14 is pressed on the medial surface of stationary ring 15, and stationary ring 15 is located in stationary seat 16;Outside framework oil seal 5 It is two, and two outside framework oil seals 5 are stuck in stationary seat 16 by retaining ring 18, by the medial surface of the outside framework oil seal 5 of inside, oil groove 17 Bottom surface and the lateral surface enclosed space of right side and axle sleeve 1 form an oil storage cavity;The outermost end of axle sleeve 1 is that connection is convex It rises, connection bump is equipped with threaded hole, and soket head cap screw 3 is threadedly coupled with the threaded hole axle sleeve 1 being fixed on screw shaft 101 On, connection bump is threadedly coupled with adjusting nut 19, and adjusting nut 19 is equipped with fixing screws B4, the material of the outside framework oil seal 5 For fluorubber, O-ring A2 is equipped between the axle sleeve 1 and screw shaft 101, between the both ends and pedestal 103 of the stationary seat 16 Equipped with O-ring B6 and O-ring C7, between stationary seat 16 and stationary ring 15 be equipped with O-ring C8, the rotating ring 14, removable insole pieces 13 with And O-ring D9 is equipped between axle sleeve 1, the spring 12 is the thin slice annular resilient hardware that several Wave crest and wave troughs are constituted.
The installation steps of mechanical seal 102: 1, outside framework oil seal 5 is packed into stationary seat 16, installs retaining ring 18;2, stationary ring 15 is filled Enter stationary seat 16;3, axle sleeve 1 is packed into stationary seat 16;4, wave spring 12 is put into rotating seat 11, and after installing removable insole pieces 13, Rotating ring 14 is put into rotating seat 11;5, rotating seat 11 is placed on axle sleeve 1, and is consolidated rotating seat 11 and axle sleeve 1 by screw A10 Fixed connection.
The step of mechanical seal 102 is installed to the pump housing 105: 1, mechanical seal 102 is packed into (i.e. stationary seat in pedestal 103 16 are fixedly connected on pedestal 103);2, pedestal 103 is fixedly connected by pedestal 103 loaded on screw shaft 101 with the pump housing 105; 3, rotation adjusting nut 19 makes spring 12 to required decrement;4, tightening soket head cap screw 3 makes axle sleeve 1 be fixedly connected on spiral shell Bar axis 101;5, screwing out adjusting nut is aligned its lateral surface with the lateral surface of axle sleeve, then tightens the adjusting nut that screw B4 is In 19 fixations and axle sleeve 1.
By above-mentioned installation steps it is found that mechanical seal of the present invention 102 is quick and easy for installation, and adjust spring 12 Decrement is equally convenient and efficient.
It should be pointed out that for those skilled in the art, before not departing from the principle of the invention It puts, several improvements and modifications can also be made, these modifications and embellishments should also be considered as the scope of protection of the present invention.

Claims (8)

1. a kind of Quimby pump, including screw rod (105), the pump housing (104), pedestal (103), screw shaft (101) and mechanical seal (102), the mechanical seal (102) include axle sleeve (1), stationary ring (15), stationary seat (16), rotating ring (14), spring (12) and Rotating seat (11), the screw thread of the screw rod (105) are multiple thread;The stationary seat (16) is equipped with oil groove (17);The axis Set (1) is placed on screw shaft (101), and axle sleeve (1) is successively cased with rotating seat (11), spring (12), activity mat thereon from inside to outside Piece (13), rotating ring (14), stationary ring (15), stationary seat (16), outside framework oil seal (5) and adjusting nut (19);It is characterized by: institute It states rotating seat (11) and is fixedly connected with axle sleeve (1) by screw A(10);Spring (12), removable insole pieces (13) and rotating ring (14) In rotating seat (11), spring (12) is pressed on removable insole pieces (13), and removable insole pieces (13) are pressed on the medial surface of rotating ring (14) On, the lateral surface of rotating ring (14) is pressed on the medial surface of stationary ring (15), and stationary ring (15) is located in stationary seat (16);The skeleton Oil sealing (5) is two, and two outside framework oil seals (5) are stuck in stationary seat (16) by retaining ring (18), by the outside framework oil seal (5) of inside Medial surface, the bottom surface of oil groove (17) and the lateral surface enclosed space of left side and axle sleeve (1) form an oil storage cavity;Institute Stating spring (12) is wave spring;The top surface of the oil groove (17) is in contact with axle sleeve (1), and the inside of oil groove (17) is by stationary seat (16) the protruding block closing on, the outside of oil groove (17) are closed by outside framework oil seal (5).
2. a kind of Quimby pump according to claim 1, it is characterised in that: the outermost end of the axle sleeve (1) is that connection is convex It rises, connection bump is equipped with threaded hole, and soket head cap screw (3) is threadedly coupled with the threaded hole is fixed on screw shaft for axle sleeve (1) (101) on, connection bump is threadedly coupled with adjusting nut (19), and adjusting nut (19) is equipped with fixing screws B(4).
3. according to claim 1 or 2 its any one of described in a kind of Quimby pump, it is characterised in that: the outside framework oil seal (5) material is fluorubber.
4. a kind of Quimby pump according to claim 1, it is characterised in that: the spring (12) is several Wave crest and wave trough structures At thin slice annular resilient hardware.
5. according to claim 1 or 2 its any one of described in a kind of Quimby pump, it is characterised in that: the axle sleeve (1) with O-ring A(2 is equipped between screw shaft (101)), O-ring B(6 is equipped between the both ends and pedestal (103) of the stationary seat (16)) With O-ring C(7), between stationary seat (16) and stationary ring (15) be equipped with O-ring C(8), the rotating ring (14), removable insole pieces (13) with And O-ring D(9 is equipped between axle sleeve (1)).
6. a kind of Quimby pump according to claim 1, it is characterised in that: the screw thread of the screw rod (105) is double end spiral shell Line or three-start screw.
7. a kind of Quimby pump according to claim 1, it is characterised in that: the stationary seat (16) is located at oil groove (17) Top is equipped with oil inlet intercommunicating pore, and the lower section for being located at oil groove (17) is equipped with fuel-displaced intercommunicating pore.
8. a kind of Quimby pump according to claim 7, it is characterised in that: the stationary seat (16) is fixedly connected on pedestal (103) on, the top which is located at oil inlet intercommunicating pore is equipped with oil filler point (111), and pedestal (103) is located at fuel-displaced connection The lower section in hole is equipped with drain oil (113), and oil filler point (111) and drain oil (113) are sealed by plug screw (112).
CN201710013567.6A 2017-01-09 2017-01-09 A kind of Quimby pump Active CN106762611B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710013567.6A CN106762611B (en) 2017-01-09 2017-01-09 A kind of Quimby pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710013567.6A CN106762611B (en) 2017-01-09 2017-01-09 A kind of Quimby pump

Publications (2)

Publication Number Publication Date
CN106762611A CN106762611A (en) 2017-05-31
CN106762611B true CN106762611B (en) 2018-12-21

Family

ID=58950584

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710013567.6A Active CN106762611B (en) 2017-01-09 2017-01-09 A kind of Quimby pump

Country Status (1)

Country Link
CN (1) CN106762611B (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467396A (en) * 1967-05-10 1969-09-16 Durametallic Corp Internally cooled seal assembly
JPH0861514A (en) * 1994-08-12 1996-03-08 Nikoku Kikai Kogyo Kk Pump device
CN200971858Y (en) * 2006-10-26 2007-11-07 天津市瑞德螺杆泵制造技术有限公司 High gas-containing ratio oil gas mixed transport doublescrew pump
CN202250842U (en) * 2011-09-26 2012-05-30 宁波伏尔肯机械密封件制造有限公司 Silicon carbide mechanical sealing device for cam rotor pump
CN202971294U (en) * 2012-11-15 2013-06-05 中国石油化工股份有限公司 Mechanical sealing and oil seal combined sealing structure for sand pump
CN206377021U (en) * 2017-01-09 2017-08-04 江苏鸿胜泵业科技有限公司 A kind of Quimby pump

Also Published As

Publication number Publication date
CN106762611A (en) 2017-05-31

Similar Documents

Publication Publication Date Title
CN106762621B (en) A kind of self-lubricating mechanical sealing
CN206377021U (en) A kind of Quimby pump
CN109026725A (en) A kind of novel wear resistant corrosion-resistant chemical centrifugal pump
CN106762611B (en) A kind of Quimby pump
CN206377022U (en) A kind of self-lubricating mechanical sealing
CN208123449U (en) A kind of double end-face mechanical sealing device
CN201053396Y (en) Single-stage single-suction condensation pump
CN207621005U (en) A kind of diaphragm stabilized pressure pump
CN205207164U (en) Adjustable spring compression amount collection dress formula double containment mechanical seal
CN208918828U (en) Water jet helical-lobe compressor
CN201717699U (en) Metal corrugated tube oil storage cavity for submersible motor protector
CN201714681U (en) Combined type self sucking pump
CN211230956U (en) Sawtooth spiral sealing device of centrifugal pump
CN110529398A (en) The explosion-proof sewage dirt submersible pump of oil immersed type
CN208252413U (en) A kind of vertical centrifugal pump
CN201627750U (en) Special sealing pad for coupling installation of submersible pump
CN109458330A (en) Water jet helical-lobe compressor
CN210317908U (en) Self-priming pump cover body capable of improving sealing reliability
CN110735798B (en) Sealed leak-proof horizontal centrifugal sand pump
CN108591024A (en) A kind of air compressor with anti-emulsion function
CN208184980U (en) A kind of novel rotary vane type vacuum pump
CN210799333U (en) Box split sliding sleeve
CN208221121U (en) A kind of high-viscosity pump of good seal performance
CN203809348U (en) Electric submersible centrifugal pump with wide displacement range
CN208619322U (en) A kind of water-pump voltage-stabilization device

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
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20211105

Address after: 211600 No.18, Jinbei Town, Jinhu County, Huai'an City, Jiangsu Province

Patentee after: Zhang Luocheng

Address before: 211600 Hebei Economic Development Zone, Jinhu County, Huai'an City, Jiangsu Province

Patentee before: JIANGSU HONGSHENG PUMP TECHNOLOGY Co.,Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20220331

Address after: 211600 room 504, No. 305 Shenhua Avenue, Jinhu County, Huai'an City, Jiangsu Province

Patentee after: Huapang (Jiangsu) energy equipment Co.,Ltd.

Address before: 211600 No.18, Jinbei Town, Jinhu County, Huai'an City, Jiangsu Province

Patentee before: Zhang Luocheng

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20230404

Address after: 211600 No.18, Jinbei Town, Jinhu County, Huai'an City, Jiangsu Province

Patentee after: JIANGSU HONGSHENG PUMP TECHNOLOGY Co.,Ltd.

Address before: 211600 room 504, No. 305 Shenhua Avenue, Jinhu County, Huai'an City, Jiangsu Province

Patentee before: Huapang (Jiangsu) energy equipment Co.,Ltd.