CN211715336U - Heat-preservation self-washing centrifugal pump - Google Patents
Heat-preservation self-washing centrifugal pump Download PDFInfo
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- CN211715336U CN211715336U CN202020260459.6U CN202020260459U CN211715336U CN 211715336 U CN211715336 U CN 211715336U CN 202020260459 U CN202020260459 U CN 202020260459U CN 211715336 U CN211715336 U CN 211715336U
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Abstract
The utility model discloses a heat preservation is from washing centrifugal pump, including impeller, pump shaft and the pump body, middle support and the bearing box that connect gradually backward in the past, still include the flushing pipe, the one end of flushing pipe with pump body export department is linked together, the other end of flushing pipe with the rear end of the pump body is linked together, pump body import department overcoat is equipped with the heat preservation and presss from both sides the cover, the heat preservation press from both sides the cover with enclose into the heat preservation sealed chamber between the pump body import department, the heat preservation press from both sides sheathe in be connected with respectively with heat preservation medium import pipe and the heat preservation medium outlet pipe of heat preservation sealed chamber intercommunication. The utility model discloses increased on prior art's basis from washing and heat retaining function to realized the self-flushing to pump body internal seal chamber department, the difficult deposit of granule, blockking up, difficult crystallization guarantees that the medium in the pump body import portion is difficult for the crystallization, and the operation is smooth, does not block up.
Description
Technical Field
The utility model relates to a centrifugal pump field, specifically speaking relate to a heat preservation is from washing centrifugal pump.
Background
The centrifugal pump has the advantages of large liquid conveying capacity, uniform and stable flow, convenient use, low manufacturing cost and extremely wide application. The types of materials used in the manufacture of centrifugal pumps include cast iron, stainless steel, ceramics, various plastics, and the like. For conveying strong corrosive acid, alkali and salt media, the parts mainly contacting with the fluid are made of fluoroplastic or fluoroplastic alloy.
However, when some special media are conveyed, such as the media are easy to crystallize, flocculent solution, more soft particles and the like, the requirements on the sealing of the centrifugal pump and the structural form of the pump are higher, and the common centrifugal pump cannot meet the requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a centrifugal pump with keep warm from washing function is provided.
In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a heat preservation self-flushing centrifugal pump, includes impeller, pump shaft and the pump body, intermediate support and the bearing box that connect gradually from the past backward, the impeller sets up in the pump body, the pump shaft rotates to be installed on the bearing box, and the front end of pump shaft penetrates the pump body with the impeller is connected, still includes the flushing pipe, the front end of the pump body is equipped with pump body import department, the upper end of the pump body is equipped with pump body export department, the one end of flushing pipe with pump body export department is linked together, the other end of flushing pipe with the rear end of the pump body is linked together, pump body import department overcoat is equipped with the heat preservation clamp cover, enclose into the heat preservation seal chamber between heat preservation clamp cover and the pump body import department, be connected with heat preservation medium import pipe and the heat preservation medium outlet pipe respectively with the heat preservation seal chamber intercommunication.
Furthermore, the pump body comprises a pump shell, a pump cover connected to the rear end of the pump shell and a sealing gland connected to the rear end of the pump cover, and the front end of the pump shaft penetrates through the sealing gland and the pump cover to be connected with the impeller.
Furthermore, a first pipe joint communicated with the outlet part of the pump body is fixed outside the outlet part of the pump body, a second pipe joint communicated with the pump body is connected outside the sealing gland, one end of the flushing pipe is connected with the first pipe joint, and the other end of the flushing pipe is connected with the second pipe joint.
Furthermore, a shaft sleeve is sleeved on the part, corresponding to the sealing gland and the pump cover, of the pump shaft, and a mechanical seal used for sealing a gap between the sealing gland and the pump shaft is sleeved on the part, located in the pump body, of the shaft sleeve.
Furthermore, a circle of boss used for limiting the mechanical seal is arranged on the shaft sleeve and located on the front side of the mechanical seal.
Furthermore, the shaft sleeve is made of 304 stainless steel, and the outer surface of the shaft sleeve is provided with outer fluoroplastic coating.
Furthermore, the pump shell is made of cast steel, and the inner surface of the pump shell is provided with a lining fluoroplastic.
Further, a welding tortoise-shell net is arranged between the pump shell and the lining fluoroplastic.
Furthermore, a dovetail groove is formed in the position, corresponding to the inner fluoroplastic lining, of the inner surface of the pump shell.
Furthermore, the heat-preservation jacket is connected with the inlet part of the pump body in a welding mode.
The beneficial effects of the utility model are embodied in:
the utility model discloses increased the function from washing on prior art's basis, when using, the one end that the fluid that exports from the pump body outlet part can pass through the flushing pipe gets into the flushing pipe, then in the other end entering pump body's of following the flushing pipe rear end, thereby realized the self-washing to pump body internal seal chamber department, the granule is difficult for the deposit, the jam, be difficult for the crystallization, the temperature of seal chamber department has been reduced, reached the flushing state to the mill face, the life of machine seal has been improved, the maintenance cycle has been prolonged, user's maintenance cost has been reduced, reduce pump operation consumption cost, the production loss because of shutting down and causing has been reduced, the use benefit is showing.
The utility model discloses increased heat retaining function on prior art's basis, when using, from heat preservation medium import pipe to heat preservation sealing intracavity input heat preservation medium, for example warm water, then discharge from heat preservation medium outlet pipe, in order to realize that heat preservation medium circulates at heat preservation sealing intracavity, constantly provide heat, thereby guarantee the difficult crystallization of medium in the pump body import portion, the operation is smooth, do not block up, thereby improve the whole life of pump, be favorable to keeping the long-term high efficiency operation of centrifugal pump, improve production efficiency, energy saving, the application field of the corrosion-resistant centrifugal pump of plastic lining has been extended greatly.
Moreover, the utility model has simple manufacturing process, convenient manufacture and use and good application prospect.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a left side view of fig. 1 (with the bottom plate omitted).
The components in the drawings are labeled as follows: the pump comprises a pump shell 1, a pump cover 2, a sealing gland 3, a middle support 4, a bearing box 5, an impeller 6, a pump shaft 7, a flushing pipe 8, a heat preservation jacket 9, a pump body inlet 10, a pump body outlet 11, a heat preservation sealing cavity 12, a heat preservation medium inlet pipe 13, a heat preservation medium outlet pipe 14, a first pipe joint 15, a second pipe joint 16, a shaft sleeve 17, a boss 18, a machine seal 19, a liquid discharge port 20, a bottom plate 21 and a supporting plate 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, "a plurality" means two or more. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
See fig. 1 and 2.
The utility model relates to a heat-preservation self-washing centrifugal pump, which comprises an impeller 6, a pump shaft 7, a pump body, a middle bracket 4 and a bearing box 5 which are sequentially connected from front to back, the impeller 6 is arranged in the pump body, the pump shaft 7 is rotatably arranged on the bearing box 5, and the front end of the pump shaft 7 penetrates into the pump body to be connected with the impeller 6, and the pump further comprises a flushing pipe 8, the front end of the pump body is provided with a pump body inlet part 10, the upper end of the pump body is provided with a pump body outlet part 11, one end of the flushing pipe 8 is communicated with the outlet part 11 of the pump body, the other end of the flushing pipe 8 is communicated with the rear end of the pump body, a heat-insulating jacket 9 is sleeved outside the pump body inlet part 10, a heat-insulating sealed cavity 12 is defined between the heat-insulating jacket 9 and the pump body inlet part 10, and the heat-insulating jacket 9 is connected with a heat-insulating medium inlet pipe 13 and a heat-insulating medium outlet pipe 14 which are respectively communicated with the heat-insulating sealed cavity 12.
The utility model discloses increased the function from washing on prior art's basis, when using, the one end that the fluid that pumps from pump body exit part can pass through the flushing pipe gets into the flushing pipe, then in the other end entering pump body's of following the flushing pipe rear end, thereby realized being equipped with the sealing member that is used for the gap between shutoff pump shaft and the pump body in the rear end to pump body internal seal chamber department (general pump body), for example the machine that will be described seals, this position also is the seal chamber), the difficult deposit of granule, the jam, difficult crystallization, the temperature of seal chamber department has been reduced, reached the flushing state to the polished surface, the life of machine seal has been improved, maintenance cycle has been prolonged, user maintenance cost has been reduced, reduce pump operation consumption cost, the production loss because of shutting down and causing has been reduced, and the use effect is showing.
The utility model discloses increased heat retaining function on prior art's basis, when using, from heat preservation medium import pipe to heat preservation sealing intracavity input heat preservation medium, for example warm water, then discharge from heat preservation medium outlet pipe, in order to realize that heat preservation medium circulates at heat preservation sealing intracavity, constantly provide heat, thereby guarantee the difficult crystallization of medium in the pump body import portion, the operation is smooth, do not block up, thereby improve the whole life of pump, be favorable to keeping the long-term high efficiency operation of centrifugal pump, improve production efficiency, energy saving, the application field of the corrosion-resistant centrifugal pump of plastic lining has been extended greatly.
Moreover, the utility model has simple manufacturing process, convenient manufacture and use and good application prospect.
In one embodiment, the pump body comprises a pump shell 1, a pump cover 2 connected to the rear end of the pump shell 1, and a sealing gland 3 connected to the rear end of the pump cover 2, and the front end of the pump shaft 7 penetrates through the sealing gland 3 and the pump cover 2 to be connected with the impeller 6. By the design, the pump body adopts a split structure, so that the machine seal can be conveniently mounted and dismounted.
In an embodiment, a first pipe joint 15 communicated with the pump body outlet 11 is fixed outside the pump body outlet 11, a second pipe joint communicated with the pump body is connected outside the sealing gland 3, one end of the flushing pipe 8 is connected with the first pipe joint 15, and the other end of the flushing pipe 8 is connected with the second pipe joint 16. By the design, the purpose of detachable flushing pipes can be achieved, maintenance is convenient, disassembly and assembly are convenient, and practicability is good.
In an embodiment, a shaft sleeve 17 is sleeved on a portion of the pump shaft 7 corresponding to the gland 3 and the pump cover 2, and a mechanical seal 19 for sealing a gap between the gland 3 and the pump shaft 7 is sleeved on a portion of the shaft sleeve 17 located in the pump body. The design like this, simple structure, easy implementation, sealed effectual.
Preferably, the machine seal is of a built-in construction.
In an embodiment, a ring of bosses 18 for limiting the mechanical seal are arranged on the shaft sleeve 17 at the front side of the mechanical seal. By the design, the mechanical seal is compressed between the boss and the sealing gland, the mechanical seal is convenient to mount, and the compression amount of the mechanical seal is not required to be adjusted.
In one embodiment, the sleeve 17 is made of 304 stainless steel and the outer surface of the sleeve 17 is coated with fluoroplastic. Design like this, can guarantee the intensity and the corrosion resistance of axle sleeve.
In one embodiment, the pump housing 1 is made of cast steel, and the inner surface of the pump housing 1 is lined with fluoroplastic. By the design, the strength and the corrosion resistance of the pump shell can be ensured.
Preferably, a welding tortoise-shell net is arranged between the pump shell 1 and the inner lining fluoroplastic. By the design, the bonding strength can be improved, and the lining fluoroplastic is not easy to fall off from the pump shell at high temperature.
Preferably, dovetail grooves are formed on the inner surface of the pump casing 1 at positions corresponding to the fluoroplastic lining. By the design, the adhesive force between the lining fluoroplastic and the pump shell can be enhanced, and the lining fluoroplastic is prevented from falling and deforming at high temperature.
In one embodiment, the thermal insulating jacket 9 is welded to the pump body inlet 10. By the design, the connection strength is high, and the sealing can be directly formed by the two.
In one embodiment, the lower end of the pump body is provided with a drain port 20. For discharging fluid from the pump body.
In specific implementation, a bottom plate 21 is further provided, and the pump body and the bearing box 5 are fixed on the bottom plate 21. By the design, the product can be integrated, and the transportation and the installation are convenient. Preferably, the bearing housing 5 is fixed to the bottom plate 21 by a support plate 22.
It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the present invention, and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application.
Claims (10)
1. The utility model provides a heat preservation is from washing centrifugal pump, includes impeller, pump shaft and the pump body, middle support and the bearing box that connect gradually backward in the past, the impeller sets up in the pump body, the pump shaft rotates to be installed on the bearing box, just the front end of pump shaft penetrates the pump body with the impeller is connected, its characterized in that: the washing device is characterized by further comprising a flushing pipe, a pump body inlet part is arranged at the front end of the pump body, a pump body outlet part is arranged at the upper end of the pump body, one end of the flushing pipe is communicated with the pump body outlet part, the other end of the flushing pipe is communicated with the rear end of the pump body, a heat-insulating jacket is sleeved outside the pump body inlet part, a heat-insulating sealing cavity is defined between the heat-insulating jacket and the pump body inlet part, and a heat-insulating medium inlet pipe and a heat-insulating medium outlet pipe which are respectively communicated with the heat-insulating sealing cavity are connected to.
2. The thermal self-flushing centrifugal pump of claim 1, wherein: the pump body includes the pump case, connects in the pump cover of the rear end of pump case and connect in the gland of the rear end of pump cover, the front end of pump shaft passes gland with the pump cover with the impeller is connected.
3. The thermal insulating self-washing centrifugal pump of claim 2, characterized in that: a first pipe joint communicated with the outlet part of the pump body is fixed outside the outlet part of the pump body, a second pipe joint communicated with the pump body is connected outside the sealing gland, one end of the flushing pipe is connected with the first pipe joint, and the other end of the flushing pipe is connected with the second pipe joint.
4. The thermal insulating self-washing centrifugal pump of claim 2, characterized in that: the pump is characterized in that a shaft sleeve is sleeved on the part of the pump shaft corresponding to the sealing gland and the pump cover, and a mechanical seal used for sealing a gap between the sealing gland and the pump shaft is sleeved on the part of the shaft sleeve located in the pump body.
5. The thermal insulating self-washing centrifugal pump of claim 4, characterized in that: and a circle of boss used for limiting the mechanical seal is arranged on the front side of the mechanical seal on the shaft sleeve.
6. The thermal insulating self-washing centrifugal pump of claim 4, characterized in that: the shaft sleeve is made of 304 stainless steel materials, and outer fluoroplastic covers the outer surface of the shaft sleeve.
7. The thermal insulation self-washing centrifugal pump of any one of claims 2 to 6, characterized in that: the pump case adopts cast steel material and the internal surface of pump case is equipped with inside lining fluoroplastics.
8. The thermal insulating self-washing centrifugal pump of claim 7, characterized in that: and a welding tortoise-shell net is arranged between the pump shell and the inner lining fluoroplastic.
9. The thermal insulating self-washing centrifugal pump of claim 7, characterized in that: and dovetail grooves are formed in the positions, corresponding to the fluoroplastic lining, of the inner surface of the pump shell.
10. The thermal insulation self-washing centrifugal pump of any one of claims 1 to 6, characterized in that: the heat-preservation jacket is connected with the inlet part of the pump body in a welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020260459.6U CN211715336U (en) | 2020-03-05 | 2020-03-05 | Heat-preservation self-washing centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020260459.6U CN211715336U (en) | 2020-03-05 | 2020-03-05 | Heat-preservation self-washing centrifugal pump |
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| Publication Number | Publication Date |
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| CN211715336U true CN211715336U (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020260459.6U Active CN211715336U (en) | 2020-03-05 | 2020-03-05 | Heat-preservation self-washing centrifugal pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199590A (en) * | 2022-09-13 | 2022-10-18 | 江苏亚梅泵业集团有限公司 | Molten urea pump capable of achieving both intermittent operation and long-time operation |
-
2020
- 2020-03-05 CN CN202020260459.6U patent/CN211715336U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199590A (en) * | 2022-09-13 | 2022-10-18 | 江苏亚梅泵业集团有限公司 | Molten urea pump capable of achieving both intermittent operation and long-time operation |
| CN115199590B (en) * | 2022-09-13 | 2023-02-10 | 江苏亚梅泵业集团有限公司 | Molten urea pump capable of achieving both intermittent operation and long-time operation |
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