CN204253429U - Two grease chambeies sealing configuration of submersible pump - Google Patents

Two grease chambeies sealing configuration of submersible pump Download PDF

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Publication number
CN204253429U
CN204253429U CN201420647973.XU CN201420647973U CN204253429U CN 204253429 U CN204253429 U CN 204253429U CN 201420647973 U CN201420647973 U CN 201420647973U CN 204253429 U CN204253429 U CN 204253429U
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CN
China
Prior art keywords
oil cylinder
submersible pump
rotating shaft
cylinder cover
annular
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Active
Application number
CN201420647973.XU
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Chinese (zh)
Inventor
孙哲利
李加志
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ZHEJIANG FENGYUAN PUMP INDUSTRY Co Ltd
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ZHEJIANG FENGYUAN PUMP INDUSTRY Co Ltd
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Priority to CN201420647973.XU priority Critical patent/CN204253429U/en
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Abstract

The utility model provides a kind of two grease chambeies sealing configuration of submersible pump, belongs to electric pump technical field.It solve existing submersible pump and adopt single grease chamber sealing configuration, there is the problem of sealing effect difference.Two grease chambeies sealing configuration of this submersible pump, comprise connecting base and be located at the oil cylinder cover below connecting base, shoe cream room is formed between oil cylinder cover and connecting base, the rotating shaft of submersible pump is arranged in this shoe cream room, there is in shoe cream room the double mechanical seal be sheathed in rotating shaft, be provided with single mechanical end face seal between oil cylinder cover and impeller, oil cylinder cover is provided with the demarcation strip for shoe cream room being divided into top grease chamber and bottom grease chamber, and bottom grease chamber is communicated with single mechanical end face seal.The utility model has the advantage such as reasonable in design, good sealing effect.

Description

Two grease chambeies sealing configuration of submersible pump
Technical field
The utility model belongs to electric pump technical field, relates to a kind of submersible pump, particularly a kind of two grease chambeies sealing configuration of submersible pump.
Background technique
In existing Submerged Motor Pumps, generally adopt single grease chamber structure, generally have following several mode that mechanical seal is set: 1, double mechanical seal to be set in grease chamber; 2, double mechanical seal is set in grease chamber, single mechanical end face seal is set outside grease chamber; 3, a single mechanical end face seal is respectively set in grease chamber and outside grease chamber, although certain sealing effect can be played, double mechanical seal is set in grease chamber, if pressure outside is easy greatly by mechanical sealing linkage ring jack-up, cause leaking; In grease chamber, arrange double mechanical seal, outside grease chamber, arrange single mechanical end face seal, the single mechanical end face seal be arranged on outside grease chamber does not have lubricant oil to supply, and easily generate heat sintering; In grease chamber He outside grease chamber, respectively arrange a single mechanical end face seal, although can solve lubrication problem, the work under bad environment of single mechanical end face seal outside, easily damages and causes leaking.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of two grease chambeies sealing configuration of submersible pump of good sealing effect.
The purpose of this utility model realizes by following technical proposal:
Two grease chambeies sealing configuration of this submersible pump, comprise connecting base and be located at the oil cylinder cover below connecting base, shoe cream room is formed between described oil cylinder cover and connecting base, the rotating shaft of submersible pump is arranged in this shoe cream room, it is characterized in that, there is in described shoe cream room the double mechanical seal be sheathed in rotating shaft, single mechanical end face seal is provided with between described oil cylinder cover and impeller, described oil cylinder cover is provided with the demarcation strip for shoe cream room being divided into top grease chamber and bottom grease chamber, and described bottom grease chamber is communicated with single mechanical end face seal.
Top grease chamber mainly carries out lubrication and cooling to double mechanical seal, bottom grease chamber mainly carries out lubrication and cooling to single mechanical end face seal, make double mechanical seal and single mechanical end face seal form independently sealing configuration, act on simultaneously, effectively ensure the sealing of submersible pump.
In two grease chambeies sealing configuration of above-mentioned submersible pump, the annular mounting groove one for installing double mechanical seal is formed between described connecting base and rotating shaft, there is between described demarcation strip and rotating shaft the annular mounting groove two for installing double mechanical seal, described annular mounting groove one is oppositely arranged with annular mounting groove two, the upper end of described double mechanical seal is positioned at annular mounting groove one, and its lower end is positioned at annular mounting groove two.
In two grease chambeies sealing configuration of above-mentioned submersible pump, the annular groove three for installing single mechanical end face seal is formed between the downside of described oil cylinder cover and rotating shaft, the upper end of described single mechanical end face seal is positioned at this annular groove three, and described annular mounting groove three is communicated with bottom grease chamber.
In two grease chambeies sealing configuration of above-mentioned submersible pump, the upper side of described oil cylinder cover has the annular coaxially arranged with rotating shaft and keeps off edge, the edge of described demarcation strip has axially to the annular extension of downward-extension, and the madial wall of described annular extension is resisted against on the outer side wall on described annular gear edge.During installation, demarcation strip is fastened on the outside on annular gear edge, forms bottom grease chamber.
In two grease chambeies sealing configuration of above-mentioned submersible pump, the lower limb of described annular extension has the joint extended radially outwardly along rotating shaft, and described joint is connected on above-mentioned oil cylinder cover by bolt.
Compared with prior art, two grease chambeies sealing configuration of this submersible pump has the following advantages:
Shoe cream room is divided into two independent grease chambeies by demarcation strip, carry out Cooling and Lubricator to double mechanical seal and single mechanical end face seal respectively, the mode combined by double mechanical seal and single mechanical end face seal can ensure reliable sealing effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of preferred embodiment that the utility model provides.
In figure, 1, connecting base; 11, annular mounting groove one; 12, annular mounting groove two; 13, annular mounting groove three; 2, oil cylinder cover; 21, annular gear edge; 3, rotating shaft; 4, double mechanical seal; 5, single mechanical end face seal; 61, top grease chamber; 62, bottom grease chamber; 7, demarcation strip; 71, annular extension; 72, joint.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, two grease chambeies sealing configuration of this submersible pump, the oil cylinder cover 2 comprising connecting base 1 and be located at below connecting base 1, be formed with shoe cream room between oil cylinder cover 2 and connecting base 1, the rotating shaft 3 of submersible pump is arranged in this shoe cream room.As shown in Figure 1, there is in shoe cream room the double mechanical seal 4 be sheathed in rotating shaft 3, single mechanical end face seal 5 is provided with between oil cylinder cover 2 and impeller, oil cylinder cover 2 is provided with the demarcation strip 7 for shoe cream room being divided into top grease chamber 61 and bottom grease chamber 62, and bottom grease chamber 62 is communicated with single mechanical end face seal 5.
Top grease chamber 61 mainly carries out lubrication and cooling to double mechanical seal 4, bottom grease chamber 62 mainly carries out lubrication and cooling to single mechanical end face seal 5, make double mechanical seal 4 and single mechanical end face seal 5 form independently sealing configuration, act on simultaneously, effectively ensure the sealing of submersible pump.
As shown in Figure 1, the annular mounting groove 1 for installing double mechanical seal 4 is formed between connecting base 1 and rotating shaft 3, there is between demarcation strip 7 and rotating shaft 3 annular mounting groove 2 12 for installing double mechanical seal 4, annular mounting groove 1 and annular mounting groove 2 12 are oppositely arranged, the upper end of double mechanical seal 4 is positioned at annular mounting groove 1, and its lower end is positioned at annular mounting groove 2 12; The annular groove three for installing single mechanical end face seal 5 is formed between the downside of oil cylinder cover 2 and rotating shaft 3, the upper end of single mechanical end face seal 5 is positioned at this annular groove three, its lower end abutment is being located on the impeller in rotating shaft 3, and annular mounting groove 3 13 is communicated with bottom grease chamber 62.
As shown in Figure 1, the upper side of oil cylinder cover 2 has the coaxial annular arranged with rotating shaft 3 to be kept off along 21, and the edge of demarcation strip 7 has axially to the annular extension 71 of downward-extension, and the madial wall of annular extension 71 is resisted against annular gear along on the outer side wall of 21.During installation, demarcation strip 7 is fastened on annular gear along the outside of 21, forms bottom grease chamber 62.
Have the joint 72 extended radially outwardly along rotating shaft 3 at the lower limb of annular extension 71, joint 72 is connected on above-mentioned oil cylinder cover 2 by bolt.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.

Claims (5)

1. two grease chambeies sealing configuration of a submersible pump, comprise connecting base (1) and be located at the oil cylinder cover (2) below connecting base (1), shoe cream room is formed between described oil cylinder cover (2) and connecting base (1), the rotating shaft (3) of submersible pump is arranged in this shoe cream room, it is characterized in that, there is in described shoe cream room the double mechanical seal (4) be sheathed in rotating shaft (3), single mechanical end face seal (5) is provided with between described oil cylinder cover (2) and impeller, described oil cylinder cover (2) is provided with the demarcation strip (7) for shoe cream room being divided into top grease chamber (61) and bottom grease chamber (62), described bottom grease chamber (62) is communicated with single mechanical end face seal (5).
2. two grease chambeies sealing configuration of submersible pump according to claim 1, it is characterized in that, the annular mounting groove one (11) for installing double mechanical seal (4) is formed between described connecting base (1) and rotating shaft (3), there is between described demarcation strip (7) and rotating shaft (3) annular mounting groove two (12) for installing double mechanical seal (4), described annular mounting groove one (11) is oppositely arranged with annular mounting groove two (12), the upper end of described double mechanical seal (4) is positioned at annular mounting groove one (11), its lower end is positioned at annular mounting groove two (12).
3. two grease chambeies sealing configuration of submersible pump according to claim 2, it is characterized in that, the annular groove three (13) for installing single mechanical end face seal (5) is formed between the downside of described oil cylinder cover (2) and rotating shaft (3), the upper end of described single mechanical end face seal (5) is positioned at this annular groove three (13), its lower end abutment is being located on the impeller in rotating shaft (3), and described annular mounting groove three is communicated with bottom grease chamber (62).
4. two grease chambeies sealing configuration of the submersible pump according to claim 1 or 2 or 3, it is characterized in that, the upper side of described oil cylinder cover (2) has and keeps off along (21) with the coaxial annular arranged of rotating shaft (3), the edge of described demarcation strip (7) has axially to the annular extension (71) of downward-extension, and the madial wall of described annular extension (71) is resisted against described annular gear along on the outer side wall of (21).
5. two grease chambeies sealing configuration of submersible pump according to claim 4, it is characterized in that, the lower limb of described annular extension (71) has the joint (72) extended radially outwardly along rotating shaft (3), and described joint (72) is connected on above-mentioned oil cylinder cover (2) by bolt.
CN201420647973.XU 2014-11-04 2014-11-04 Two grease chambeies sealing configuration of submersible pump Active CN204253429U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420647973.XU CN204253429U (en) 2014-11-04 2014-11-04 Two grease chambeies sealing configuration of submersible pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420647973.XU CN204253429U (en) 2014-11-04 2014-11-04 Two grease chambeies sealing configuration of submersible pump

Publications (1)

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CN204253429U true CN204253429U (en) 2015-04-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112032099A (en) * 2020-08-07 2020-12-04 安徽埃斯克制泵有限公司 Axial sealing structure of pump shaft of submersible pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112032099A (en) * 2020-08-07 2020-12-04 安徽埃斯克制泵有限公司 Axial sealing structure of pump shaft of submersible pump

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