WO2023125726A1 - Machine électrique pour pompe de puits profond et joint d'étanchéité correspondant - Google Patents

Machine électrique pour pompe de puits profond et joint d'étanchéité correspondant Download PDF

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Publication number
WO2023125726A1
WO2023125726A1 PCT/CN2022/143034 CN2022143034W WO2023125726A1 WO 2023125726 A1 WO2023125726 A1 WO 2023125726A1 CN 2022143034 W CN2022143034 W CN 2022143034W WO 2023125726 A1 WO2023125726 A1 WO 2023125726A1
Authority
WO
WIPO (PCT)
Prior art keywords
seal
sealing member
bend
sealing
cavity
Prior art date
Application number
PCT/CN2022/143034
Other languages
English (en)
Chinese (zh)
Inventor
连勇斌
许式省
肖铭慧
Original Assignee
温岭正峰数字机电科技有限公司
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 温岭正峰数字机电科技有限公司 filed Critical 温岭正峰数字机电科技有限公司
Publication of WO2023125726A1 publication Critical patent/WO2023125726A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/132—Submersible electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
    • F16J15/48—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings influenced by the pressure within the member to be sealed
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
    • H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means

Definitions

  • the invention relates to the technical field of deep well pumps, in particular to a motor of a deep well pump and a seal thereof.
  • the sealing device In the hydraulic system, the sealing device is used to prevent the leakage of the working medium and the intrusion of external dust and foreign matter. Therefore, the sealing performance is an important performance of the sealing device.
  • the present invention provides a sealing element, which is suitable for sealing with different pressures on both sides of the sealing element.
  • the present invention also provides a deep well pump motor with the above-mentioned seal.
  • the present invention provides the following technical solutions:
  • a seal comprising:
  • Both the first side and the second side are elastic bending parts.
  • the first side, the second side and the connecting side are of an integral structure and are all made of rubber.
  • the sharp corner of the bend of the first side is opposite to the sharp corner of the bend of the second side, and the concave of the looper of the first side
  • the groove is opposite to the groove at the bend of the second side.
  • the end of the first side away from the connecting side has a first connecting piece for press-fitting with the cavity wall of the cavity to be sealed, and the first connecting piece is The straight segment from which the second side extends.
  • the first connecting member is arranged along the radial direction of the annular member, and the first connecting member is connected to the bend of the first side through a connecting section perpendicular to it. .
  • the end of the second side edge away from the connecting edge has a second connecting piece for bonding with the cavity wall of the cavity to be sealed, and the second connecting piece is connected to the sealed cavity.
  • the raised bump on the first side is not limited to, but not limited to, but not limited to,
  • the protrusion is connected to the bend of the second side through a connecting portion, and the connecting portion is parallel to the connecting section.
  • a motor of a deep well pump including a shielding sleeve arranged in the motor, wherein it also includes a seal for being sleeved on the outside of the shielding sleeve to seal between the inner cavity and the outer cavity, and the seal is
  • the sealing member according to any one of the above, wherein the opening of the sealing member communicates with the inner chamber.
  • the present invention provides a sealing element, which is set as a telescopic element with an opening. When in use, it faces the high-pressure chamber, and the pressure in the high-pressure chamber is transmitted to the low-pressure chamber through the sealing element, that is, the expansion and contraction of the sealing element can The deformation under pressure ensures the sealing effect and is suitable for the sealing of two chambers with different pressures.
  • Fig. 1 is a schematic structural diagram of a seal disclosed in an embodiment of the present invention
  • Fig. 2 is a schematic diagram of the application structure of the seal disclosed in the embodiment of the present invention on the motor of the deep well pump.
  • the invention discloses a seal, which is suitable for sealing with different pressures on both sides of the seal.
  • the present invention also provides a deep well pump motor with the above-mentioned seal.
  • first and second are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as “first” and “second” may explicitly or implicitly include one or more of these features.
  • the present application discloses a seal, specifically, the seal includes a first side 11, a connecting side 12 and a second side 13 connected in sequence, and the first side 11, the connecting side 12 and the second side 13 are connected to form a ring with an opening, and the cross-section of the ring is a U-shaped structure; the core is that the first side 11 and the second side 13 are elastic bending parts.
  • the seal is set as a telescopic piece with an opening, and it faces the high-pressure chamber when in use, and the pressure in the high-pressure chamber is transmitted to the low-pressure chamber through the seal, that is, the expansion and contraction of the seal can withstand the deformation of the pressure and ensure the sealing effect. Suitable for sealing of two chambers with different pressures.
  • first side 11 , the second side 13 and the connecting side 12 are of an integral structure, and are all rubber parts.
  • the sealing element can also be set as silica gel or the like.
  • the one-piece structure ensures the strength of the seal.
  • the above-mentioned sharp corner of the bend of the first side 11 is opposite to the sharp corner of the bend of the second side 13, and the groove at the looper of the first side 11 and the second side
  • the grooves at the bends of 13 are opposite, so that the first side 11 and the second side 13 can be stretched and contracted synchronously.
  • the bending position of the first side 11 and the bending position of the second side 13 can be arranged as a radially symmetrical structure with respect to the sealing member.
  • the end of the first side 11 disclosed in this application away from the connecting side has a first connecting piece 14 for press-fitting with the cavity wall of the sealed cavity, and the first connecting piece 14 is A straight line extending away from the second side 13 .
  • it can be press-fitted through the matching mounting hole, or it can be bonded.
  • the above-mentioned first connecting member 14 is arranged along the radial direction of the ring member, and the first connecting member 14 is connected to the bend of the first side 11 through a connecting section perpendicular thereto.
  • the first connecting piece 14 and the connecting section form an L-shaped structure, and in practice, a stepped structure can also be used to cooperate and seal with it, so as to increase the sealing contact area and improve the sealing effect.
  • the first end of the above-mentioned second side 13 away from the connecting side has a second connecting piece 14 for bonding with the cavity wall of the cavity to be sealed, and the second connecting piece 14 is facing the first Side 11 raised bumps.
  • the second side 13 can also be connected through connection methods such as press fitting, and can be fixed and sealed at the same time by using glue injection and bonding.
  • connection mode between the sealing member and the cavity can be set and selected according to the material of the cavity wall, and all of them are within the scope of protection.
  • the above-mentioned bump is connected to the bend of the second side 13 through the connecting portion, and the connecting portion is parallel to the connecting section.
  • the connecting section and the connecting portion are symmetrically arranged to ensure the simultaneous expansion and contraction of the sealing member.
  • the present application also discloses a deep well pump, which includes a shielding sleeve arranged in the motor, and also includes a seal used to be sleeved on the outside of the shielding sleeve to seal between the inner cavity and the outer cavity, and the opening of the seal It communicates with the inner cavity, and the sealing element is the sealing element disclosed in the above embodiment, therefore, the deep well pump with the sealing element also has all the technical effects mentioned above, which will not be repeated here.
  • the opening of the sealing member can communicate with the inner cavity, and the first side 11 of the sealing member is in sealing connection with the outer side of the carbon fiber shielding sleeve 4 , and the second side 13 of the sealing member is in sealing connection with the motor barrel 7 . That is, the sealing between the motor barrel 7 and the carbon fiber shielding sleeve 4 has been realized.
  • the motor heats up, the hydraulic oil in the outer cavity expands, and the volume increases, and the seal is compressed and deformed in the direction of the inner cavity until the pressure of the inner cavity and the outer cavity are the same to ensure the sealing effect.
  • the first side 11 and the second side 13 of the above-mentioned seal are both bent surfaces, and the bending structure realizes elongation and compression when subjected to pressure. On the one hand, the pressure is ensured. On the other hand, avoid excessive pressure and damage the seal.
  • the above-mentioned sealing member can also be configured as an elastic member that can expand under pressure, such as a relatively elastic rubber member. The number of bends needs to be set according to the displacement that the seal needs to expand and contract, and all of them are within the protection range. In addition, there is no specific limitation on the bent shape, as long as stretching and contraction can be realized.
  • the glue injection sealing method is used in this application to realize the bending of the first side 11 of the sealing member close to the opening.
  • the folded part is connected with the carbon fiber shielding sleeve 4 , and after cooling, a first glue injection part 5 is formed between the first side edge 11 of the sealing member near the opening and the carbon fiber shielding sleeve 6 at the bent portion.
  • connection position between the first side 11 of the sealing member and the carbon fiber shielding sleeve 4 can be set according to different needs. In practice, multiple glue seals can also be provided between the first side 11 and the carbon fiber shielding sleeve 4 according to sealing requirements.
  • the seal between the seal and the motor barrel 7 can be adapted through the step structure on the motor barrel 7 and the bend of the second side 13 of the seal, and the rubber compression ring 2 is crimped and sealed.
  • the sealing connection with the sealing member can be realized by crimping the sealing ring.
  • a stepped structure is provided on the motor barrel 7 to fit with the bend of the second side 13 to increase the contact area and improve the sealing effect.
  • the above-mentioned rubber compression ring 2 is an annular seal installed inside the seal, and the middle through hole of the rubber compression ring 2 can communicate with the opening and the seal. In this way, high-pressure water can enter the sealing member through the opening and the rubber compression ring 2, so as to realize the transmission of pressure.
  • the motor in the present application is also provided with a retaining ring 3 sealed between the seal and the motor upper cover of the motor barrel 7 at the first seal, and the retaining ring 3 is sealed and pressed on the step , the middle through hole of the retaining ring 3 can communicate with the inner cavity.
  • the terms “a”, “an”, “an” and/or “the” do not refer to the singular and may include the plural unless the context clearly indicates an exception.
  • the terms “comprising” and “comprising” only suggest the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also contain other steps or elements.
  • An element qualified by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or device that includes the element.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Fluid Mechanics (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Sealing Devices (AREA)
  • Gasket Seals (AREA)

Abstract

La présente invention concerne une machine électrique pour une pompe de puits profond et un joint d'étanchéité correspondant, caractérisés en ce qu'ils comprennent : un premier côté, un côté de raccordement et un second côté qui sont raccordés en séquence. Le premier côté, le côté de raccordement et le second côté sont raccordés pour former une pièce annulaire avec une ouverture, et la section transversale de la pièce annulaire est une structure en forme de U; le premier côté et le second côté sont tous deux des pièces de flexion élastiques. Le joint d'étanchéité se présente sous la forme d'une pièce télescopique avec une ouverture. Lors de l'utilisation, le joint d'étanchéité est orienté vers une cavité à haute pression, et la pression dans la cavité à haute pression est transmise à une cavité à basse pression au moyen du joint d'étanchéité; c'est-à-dire que le joint d'étanchéité peut supporter une déformation provoquée par la pression, assurant l'effet d'étanchéité. Le joint est adapté pour assurer l'étanchéité de deux cavités de pressions différentes.
PCT/CN2022/143034 2021-12-31 2022-12-28 Machine électrique pour pompe de puits profond et joint d'étanchéité correspondant WO2023125726A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111675860.1 2021-12-31
CN202111675860.1A CN114793030A (zh) 2021-12-31 2021-12-31 一种深井泵的电机及其密封件

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WO2023125726A1 true WO2023125726A1 (fr) 2023-07-06

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WO (1) WO2023125726A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114793030A (zh) * 2021-12-31 2022-07-26 温岭正峰数字机电科技有限公司 一种深井泵的电机及其密封件

Citations (9)

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Publication number Priority date Publication date Assignee Title
CN204127311U (zh) * 2014-09-25 2015-01-28 奇瑞汽车股份有限公司 一种汽车锁拉线密封圈
CN105591485A (zh) * 2014-11-11 2016-05-18 无锡清杨机械制造有限公司 一种屏蔽电机
CN207093770U (zh) * 2017-08-25 2018-03-13 北京臻迪科技股份有限公司 密封结构及涉水机器人
CN109114333A (zh) * 2018-09-29 2019-01-01 天津包博特密封科技有限公司 一种过渡连接用密封件
JP2019002497A (ja) * 2017-06-16 2019-01-10 Ntn株式会社 シェル形ころ軸受
CN210003813U (zh) * 2019-05-31 2020-01-31 河北瑧诚橡塑科技有限公司 复合型充气密封圈
CN211116655U (zh) * 2019-11-04 2020-07-28 合肥新沪屏蔽泵有限公司 液冷泵
CN114793031A (zh) * 2021-12-31 2022-07-26 温岭正峰数字机电科技有限公司 一种深井泵及其电机
CN114793030A (zh) * 2021-12-31 2022-07-26 温岭正峰数字机电科技有限公司 一种深井泵的电机及其密封件

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204127311U (zh) * 2014-09-25 2015-01-28 奇瑞汽车股份有限公司 一种汽车锁拉线密封圈
CN105591485A (zh) * 2014-11-11 2016-05-18 无锡清杨机械制造有限公司 一种屏蔽电机
JP2019002497A (ja) * 2017-06-16 2019-01-10 Ntn株式会社 シェル形ころ軸受
CN207093770U (zh) * 2017-08-25 2018-03-13 北京臻迪科技股份有限公司 密封结构及涉水机器人
CN109114333A (zh) * 2018-09-29 2019-01-01 天津包博特密封科技有限公司 一种过渡连接用密封件
CN210003813U (zh) * 2019-05-31 2020-01-31 河北瑧诚橡塑科技有限公司 复合型充气密封圈
CN211116655U (zh) * 2019-11-04 2020-07-28 合肥新沪屏蔽泵有限公司 液冷泵
CN114793031A (zh) * 2021-12-31 2022-07-26 温岭正峰数字机电科技有限公司 一种深井泵及其电机
CN114793030A (zh) * 2021-12-31 2022-07-26 温岭正峰数字机电科技有限公司 一种深井泵的电机及其密封件

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