CN216131140U - Sealing mechanism of hot water circulating pump - Google Patents
Sealing mechanism of hot water circulating pump Download PDFInfo
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- CN216131140U CN216131140U CN202121630502.4U CN202121630502U CN216131140U CN 216131140 U CN216131140 U CN 216131140U CN 202121630502 U CN202121630502 U CN 202121630502U CN 216131140 U CN216131140 U CN 216131140U
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Abstract
The utility model relates to a sealing mechanism of a hot water circulating pump in the technical field of hot water pumps, wherein a rotating shaft is transversely arranged at the center of a shell, the sealing mechanism comprises a main sealing component and an auxiliary sealing component, and the main sealing component is arranged between a sealing cavity and an impeller cavity; the main sealing assembly comprises a front retainer ring close to the impeller cavity, a rotating assembly sleeved on the rotating shaft and arranged behind the front retainer ring, an elastic sealing assembly matched with the rotating assembly, a supporting sealing assembly matched with the elastic sealing assembly, a rear retainer ring used for compressing the elastic sealing assembly and the supporting sealing assembly, and a rear end sealing terminal arranged between the supporting sealing assembly and the rotating assembly; the utility model discloses a simple structure, it is sealed reliable, the influence that the in-process that uses can effectually avoid pump body vibration to bring improves sealed stability, also practices thrift the cost simultaneously, avoids regular change.
Description
Technical Field
The utility model relates to the technical field of hot water pumps, in particular to a hot water circulating pump.
Background
At present, the types of hot water circulating pumps are very many, when the hot water circulating pumps are used, the hot water circulating pumps are widely used in the fields of metallurgy, power stations, light spinning, chemical engineering and the like, and can well meet the requirements of various occasions in national economic construction, but the service performance of the traditional hot water circulating pump is unreliable, compared with the international advanced level products, the sealing devices of the R-type hot water circulating pumps produced in China are mostly sealed by adopting a combination mode of floating and filling materials, the leakage at the shaft sealing position of the hot water circulating pump is serious when the hot water temperature is 215 ℃, the leaked hot water steam is full of the whole working place, the hot water circulating pumps cannot normally work, and the efficiency of the pumps is low; therefore, how to develop a hot water circulating pump with sealing effect, running reliability and the like which exceed the level of domestic similar products and reach or exceed the international advanced level is a problem which is urgently needed to be solved at present.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model provides the sealing mechanism of the hot water circulating pump, which has the advantages of simple structure and reliable sealing, can effectively avoid the influence caused by the vibration of the pump body in the using process, improves the stability of sealing, saves the cost and avoids frequent replacement.
In order to achieve the purpose, the sealing mechanism comprises a base and a shell arranged on the base, wherein a rotating shaft is transversely arranged at the center of the shell, an impeller cavity, a soaking cavity and a sealing cavity are arranged in the shell, the rotating shaft penetrates through the impeller cavity, the soaking cavity and the sealing cavity and is provided with a sealing mechanism in a matching manner, the sealing mechanism comprises a main sealing component and an auxiliary sealing component, and the main sealing component is arranged between the sealing cavity and the impeller cavity; the main sealing assembly comprises a front retainer ring close to the impeller cavity, a rotating assembly sleeved on the rotating shaft and arranged behind the front retainer ring, a matching rotating assembly arranged on the elastic sealing assembly, a supporting sealing assembly arranged in matching with the elastic sealing assembly, a rear retainer ring used for compressing the elastic sealing assembly and the supporting sealing assembly, and a rear end sealing terminal arranged between the supporting sealing assembly and the rotating assembly.
When the elastic sealing assembly works, the driving device drives the rotating shaft to rotate through the coupler, the rotating shaft drives the impeller to rotate so as to suck liquid from the inlet and flow out from the outlet, vibration or abrasion is inevitable in the long-term use process, the front spring and the rear spring which correspond to the transverse end and the longitudinal end of the elastic sealing assembly respectively can effectively reduce vibration, and meanwhile allowance adjustment can be properly carried out in the working process so as to improve the sealing effect; and the transverse end and the longitudinal end can effectively counteract the vibration generated by the rotating assembly in the rotating process, so that sealing can be better formed, and the sealing reliability is improved.
The sealing mechanism of the hot water circulating pump has the beneficial effects that the sealing mechanism of the hot water circulating pump is simple in structure and reliable in sealing, the influence caused by vibration of the pump body can be effectively avoided in the using process, the sealing stability is improved, the cost is saved, and frequent replacement is avoided.
As a further improvement of the utility model, in order to ensure the stable and reliable rotation of the rotating assembly and improve the stability of sealing; the rotating assembly comprises a main shaft sleeve, a U-shaped groove and a ladder, wherein the U-shaped groove is formed in the main shaft sleeve and is close to the position of a front check ring, the ladder is arranged at the position of the U-shaped groove, a first rubber ring is arranged at the position of the ladder, a second rubber ring is arranged on the outer wall of the main shaft sleeve in a matched mode with the elastic sealing assembly, and a third rubber ring is further arranged on the inner wall of the main shaft sleeve in a matched mode with the rotating shaft.
As a further improvement of the utility model, in order to ensure the stable operation of the elastic sealing component and avoid the influence caused by vibration; the elastic sealing assembly is integrally arranged in an L shape and comprises a transverse end and a longitudinal end, the transverse end is provided with a reinforcing structure in a matched mode, the transverse end is arranged in a matched mode in a U-shaped groove, and the longitudinal end is arranged in a matched mode in a rear check ring.
As a further improvement of the utility model, in order to ensure the stable operation of the elastic sealing component, the elastic sealing component can be properly elastically deformed; the transverse end and the longitudinal end are both provided with spring placing parts in a matching way, a front spring is arranged between the transverse end and the U-shaped groove, and a rear spring is arranged between the longitudinal end and the rear retainer ring; and a gap is arranged between the transverse end and the main shaft sleeve in a matching manner.
As a further improvement of the utility model, in order to ensure that the service life of the elastic sealing component is long and the work is stable; the elastic sealing component is made of high-temperature wear-resistant and corrosion-resistant materials.
As a further improvement of the utility model, in order to ensure that the supporting and sealing component is stable and reliable; the supporting and sealing assembly comprises a bolt fixed end and a supporting and sealing end matched with the transverse end, a fourth rubber ring is arranged between the supporting and sealing assembly and the transverse end in a matched mode, the supporting and sealing assembly is directly welded and fixed at one end of the sealing cavity and used for fixing the rear retainer ring, and the supporting and sealing assembly and the rotating assembly are arranged at intervals.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a front view of the present invention.
Wherein, 1 front part retaining ring, 2 spindle cover, 3 horizontal end, 4 first rubber circle, 5 fourth rubber circle, 6 second rubber circle, 7 third rubber circle, 8U-shaped groove, 9 rear part retaining ring, 10 vertical end, 11 front part spring, 12 rear part spring.
Detailed Description
As shown in fig. 1, in order to achieve the above object, the sealing mechanism of the hot water circulating pump comprises a base and a shell arranged on the base, wherein a rotating shaft is transversely arranged at the center of the shell, an impeller cavity, a soaking cavity and a sealing cavity are arranged in the shell, the rotating shaft penetrates through the impeller cavity, the soaking cavity and the sealing cavity and is provided with a sealing mechanism in a matching manner, the sealing mechanism comprises a main sealing component and an auxiliary sealing component, and the main sealing component is arranged between the sealing cavity and the impeller cavity; the main sealing assembly comprises a front retainer ring 1 close to the impeller cavity, a rotating assembly sleeved on the rotating shaft and arranged behind the front retainer ring 1, an elastic sealing assembly matched with the rotating assembly, a supporting sealing assembly matched with the elastic sealing assembly, a rear retainer ring 9 used for compressing the elastic sealing assembly and the supporting sealing assembly, and a rear end sealing terminal arranged between the supporting sealing assembly and the rotating assembly; the rotating assembly comprises a main shaft sleeve 2, a U-shaped groove 8 which is arranged on the main shaft sleeve 2 and is close to the position of a front check ring 1, and a step which is arranged at the U-shaped groove 8, wherein a first rubber ring 4 is arranged at the step, a second rubber ring 6 is arranged on the outer wall of the main shaft sleeve 2 in a manner of being matched with an elastic sealing assembly, and a third rubber ring 7 is also arranged on the inner wall of the main shaft sleeve 2 in a manner of being matched with a rotating shaft; the elastic sealing assembly is integrally arranged in an L shape and comprises a transverse end 3 and a longitudinal end 10, the transverse end 3 is provided with a reinforcing structure in a matching mode, the transverse end 3 is arranged in a matching mode with the U-shaped groove 8, and the longitudinal end 10 is arranged in a matching mode with the rear retainer ring 9; the transverse end 3 and the longitudinal end 10 are both provided with spring placing parts in a matching way, a front spring 11 is arranged between the transverse end 3 and the U-shaped groove 8, and a rear spring 12 is arranged between the longitudinal end 10 and the rear retainer ring 9; a gap is arranged between the transverse end 3 and the main shaft sleeve 2 in a matching way; the elastic sealing component is made of high-temperature wear-resistant and corrosion-resistant materials; support seal assembly and include the bolt stiff end, support seal assembly that the horizontal end 3 of cooperation set up, the cooperation is provided with fourth rubber circle 5 between support seal assembly and the horizontal end 3, support seal assembly welded fastening is in the one end of sealed chamber and be used for fixed rear portion retaining ring 9, the interval sets up between support seal assembly and the rotating assembly.
When the elastic sealing assembly works, the driving device drives the rotating shaft to rotate through the coupler, the rotating shaft drives the impeller to rotate so as to suck liquid from the inlet and flow out from the outlet, vibration or abrasion is inevitable in the long-term use process, at the moment, the front spring 11 and the rear spring 12 which correspond to the transverse end 3 and the longitudinal end 10 on the elastic sealing assembly respectively can effectively reduce vibration, meanwhile, allowance adjustment can be properly carried out in the working process, and the sealing effect is improved; and the transverse end 3 and the longitudinal end 10 can effectively counteract the vibration generated by the rotating assembly in the rotating process, so that the sealing can be better formed, and the sealing reliability is improved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may be made by those skilled in the art without departing from the principle of the utility model, and such modifications should also be considered as within the scope of the utility model.
Claims (6)
1. A sealing mechanism of a hot water circulating pump comprises a base and a shell arranged on the base, and is characterized in that a rotating shaft is transversely arranged at the center of the shell, an impeller cavity, a soaking cavity and a sealing cavity are arranged in the shell, the rotating shaft penetrates through the impeller cavity, the soaking cavity and the sealing cavity and is provided with the sealing mechanism in a matching manner, the sealing mechanism comprises a main sealing component and an auxiliary sealing component, and the main sealing component is arranged between the sealing cavity and the impeller cavity; the main sealing assembly comprises a front retainer ring close to the impeller cavity, a rotating assembly sleeved on the rotating shaft and arranged behind the front retainer ring, a matching rotating assembly arranged on the elastic sealing assembly, a supporting sealing assembly arranged in matching with the elastic sealing assembly, a rear retainer ring used for compressing the elastic sealing assembly and the supporting sealing assembly, and a rear end sealing terminal arranged between the supporting sealing assembly and the rotating assembly.
2. The sealing mechanism of a hot water circulation pump according to claim 1, wherein: the rotating assembly comprises a main shaft sleeve, a U-shaped groove and a ladder, wherein the U-shaped groove is formed in the main shaft sleeve and is close to the position of a front check ring, the ladder is arranged at the position of the U-shaped groove, a first rubber ring is arranged at the position of the ladder, a second rubber ring is arranged on the outer wall of the main shaft sleeve in a matched mode with the elastic sealing assembly, and a third rubber ring is further arranged on the inner wall of the main shaft sleeve in a matched mode with the rotating shaft.
3. The sealing mechanism of a hot water circulation pump according to claim 1, wherein: the elastic sealing assembly is integrally arranged in an L shape and comprises a transverse end and a longitudinal end, the transverse end is provided with a reinforcing structure in a matched mode, the transverse end is arranged in a matched mode in a U-shaped groove, and the longitudinal end is arranged in a matched mode in a rear check ring.
4. A sealing mechanism of a hot water circulation pump according to claim 3, wherein: the transverse end and the longitudinal end are both provided with spring placing parts in a matching way, a front spring is arranged between the transverse end and the U-shaped groove, and a rear spring is arranged between the longitudinal end and the rear retainer ring; and a gap is arranged between the transverse end and the main shaft sleeve in a matching manner.
5. The sealing mechanism of a hot water circulation pump according to claim 1, wherein: the elastic sealing component is made of high-temperature wear-resistant and corrosion-resistant materials.
6. The sealing mechanism of a hot water circulation pump according to claim 1, wherein: the supporting and sealing assembly comprises a bolt fixed end and a supporting and sealing end matched with the transverse end, a fourth rubber ring is arranged between the supporting and sealing assembly and the transverse end in a matched mode, the supporting and sealing assembly is directly welded and fixed at one end of the sealing cavity and used for fixing the rear retainer ring, and the supporting and sealing assembly and the rotating assembly are arranged at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121630502.4U CN216131140U (en) | 2021-07-19 | 2021-07-19 | Sealing mechanism of hot water circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121630502.4U CN216131140U (en) | 2021-07-19 | 2021-07-19 | Sealing mechanism of hot water circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216131140U true CN216131140U (en) | 2022-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121630502.4U Active CN216131140U (en) | 2021-07-19 | 2021-07-19 | Sealing mechanism of hot water circulating pump |
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| CN (1) | CN216131140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357156A (en) * | 2021-07-19 | 2021-09-07 | 江苏维尔特泵业有限公司 | Novel inside and outside multilayer seal cooling hot water circulating pump |
-
2021
- 2021-07-19 CN CN202121630502.4U patent/CN216131140U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357156A (en) * | 2021-07-19 | 2021-09-07 | 江苏维尔特泵业有限公司 | Novel inside and outside multilayer seal cooling hot water circulating pump |
| CN113357156B (en) * | 2021-07-19 | 2024-04-12 | 江苏维尔特泵业有限公司 | Inside and outside multilayer sealed cooling hot water circulating pump |
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