CN203453112U - Plastic centrifugal pump - Google Patents
Plastic centrifugal pump Download PDFInfo
- Publication number
- CN203453112U CN203453112U CN201320446322.XU CN201320446322U CN203453112U CN 203453112 U CN203453112 U CN 203453112U CN 201320446322 U CN201320446322 U CN 201320446322U CN 203453112 U CN203453112 U CN 203453112U
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- China
- Prior art keywords
- pump
- sealing
- cover
- ring
- shaft
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- Expired - Fee Related
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Abstract
The utility model discloses a plastic centrifugal pump which comprises a pump shell, an impeller, a pump shaft, a pump cover, a support, a sealing moving ring, a sealing static ring, a sealing pressing cover, a coupler and a motor. The pump shaft penetrates though the support and the pump cover in sequence and is connected with the impeller. The sealing static ring is arranged between the pump cover and the pump shell and is fastened by the sealing pressing cover on the outer side. The sealing pressing cover is connected with the pump cover. The impeller is arranged in the pump shell and is fixed on the pump shaft. Part of the sealing moving ring is directly arranged on the metal pump shaft. The sealing pressing cover extends backwards to form a cooling water cover. The sealing moving ring is sealed in the cooling water cover. Cooling of the sealing moving ring is achieved by circulation of cold water. A frame oil seal is arranged on the cooling water sleeve. The frame oil seal and the metal part of the sealing moving ring form rotating sealing. According to the plastic centrifugal pump, friction heat is taken away by forcible outer flushing, stable operation can be achieved under relative high temperature (160 DEG C) and high pressure (1.0MP), high temperature using stability of the pump is achieved, and the using limitation and shortcomings of an existing common plastic pump product are avoided.
Description
Technical field
The utility model relates to a kind of centrifugal pump for chemical field, relates in particular to a kind of plastic centrifugal pump, belongs to technical field of chemical.
Background technique
Plastic centrifugal pump because it is easy to process, cheap, be widely used, but plastic centrifugal pump cannot be taked flushing scheme as metal pump, all generally to adopt mechanical seal dry friction form, common mechanical sealing linkage ring is to be fixed in plastic shaft, due to plastics temperature distortion, and the cold flow phenomenon of fluoroplastic, the in the situation that of high temperature and system pressure rising, mechanical sealing linkage ring, easily to pusher, causes seal leakage, so serviceability temperature is subject to certain restrictions; Also there are in the market some to rinse easily, but sparge water cannot seal, environment is impacted, solution machine does not seal pressure-bearing problem, generally, at 0.5-0.6Mp, even if some employings strengthen spring pressure, can suitably increase some pressure, do not solve yet the impact that plastic hot modification and cold flow cause at all, therefore use extremely unstable.
Summary of the invention
Technical problem to be solved in the utility model is for problems of the prior art, and a kind of plastic centrifugal pump that can stable operation under relatively-high temperature, high pressure is provided.
For solving this technical problem, the utility model provides a kind of plastic centrifugal pump, comprise pump case, impeller, pump shaft, pump cover, support, moving sealing ring, stationary seal ring, sealing gland, coupling and motor, one end of coupling is connected with the rotating shaft of motor, the other end is connected with pump shaft, the described pump shaft the other end passes the side plate of support successively, pump cover connects impeller, pump cover and pump case opposite position are provided with stationary seal ring, sealing stationary ring is enclosed within on pump shaft, and fastening by the sealing gland in outside, sealing gland is connected with pump cover by bolt, described impeller is arranged in the through hole of pump case inside, by nut, be fixed on pump shaft, a described moving sealing ring part is arranged on the plastic sleeve of pump shaft, another part is set directly on metal pump shaft, described sealing gland extends back and forms a cooling jacket, moving sealing ring is closed in this cooling jacket, described cooling jacket is connected with water inlet tap and water outlet, and cold water circulates to realize and flows out from water outlet the cooling of moving sealing ring in water inlet tap enters cooling jacket.
On described cooling jacket, be provided with outside framework oil seal, the metal of outside framework oil seal and moving sealing ring partly forms rotary sealing, in order to seal cooling water.
Described moving sealing ring and plastic shaft joint are provided with seal ring.
Described cooling jacket is realized axial restraint by the retaining ring being arranged on metal pump shaft.
Beneficial effect: the utility model arranges a kind of novel mechanical seal device on the basis of existing plastic pump, be intended to form a kind of to sealing the outer flushing scheme of reliable pressure, sparge water is taken away frictional heat, solve mechanical seal applied at elevated temperature stability, can be in relatively-high temperature (160 ℃), the lower stable operation of high pressure (1.0Mp), solve pump applied at elevated temperature stability, broken through the use restriction of current common plastics pump product and the centrifugal pump of defect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1 pump case, 2 impellers, 3 pump shafts, 4 pump covers, 5 supports, 6 moving sealing rings, 7 stationary seal rings, 8 sealing glands, 11 cooling jackets, 12 water inlet taps, 13 water outlets, 14 outside framework oil seals, 15 seal rings, 16 retaining rings.
Embodiment
Below in conjunction with drawings and Examples, the utility model is specifically described.
Figure 1 shows that structural representation of the present utility model.
The utility model comprises pump case 1, impeller 2, pump shaft 3, pump cover 4, support 5, moving sealing ring 6, stationary seal ring 7, sealing gland 8, coupling and motor, one end of coupling is connected with the rotating shaft of motor, the other end is connected with pump shaft 3, described pump shaft 3 the other ends pass the side plate of support 5 successively, pump cover 4 connects impeller 2, pump cover 4 is provided with stationary seal ring 7 with pump case 1 opposite position, sealing stationary ring 7 is enclosed within on pump shaft 3, and fastening by the sealing gland 8 in outside, sealing gland 8 is connected with pump cover 4 by bolt, described impeller 2 is arranged in the through hole of pump case 1 inside, by nut, be fixed on pump shaft 3.
Described moving sealing ring 6 parts are arranged on the plastic sleeve of pump shaft 3, and another part is set directly on metal pump shaft 3, have increased its pressure axially bearing, and can increase 1Mp.
Described sealing gland 8 extends back and forms a cooling jacket 11, and moving sealing ring 6 is closed in this cooling jacket 11.Described cooling jacket is connected with water inlet tap and water outlet, can make born temperature greatly improve, and after improving, serviceability temperature can reach stable operation in 160 ℃ of situations.
Described cooling jacket 11 is connected with water inlet tap 12 and water outlet 13, and cold water enters in cooling jacket 11 from water inlet tap 12, and the circulation by water realizes flows out from water outlet 13 after the cooling of moving sealing ring 6.
Described moving sealing ring 6 is provided with seal ring 15 with plastic shaft joint.
On described cooling jacket 11, be provided with outside framework oil seal 14, outside framework oil seal 14 partly forms rotary sealing with the metal of moving sealing ring 6, in order to seal cooling water.
Described cooling jacket 11 is realized axial restraint by the retaining ring 16 being arranged on metal pump shaft 3.
The utility model arranges a kind of novel mechanical seal device on the basis of existing plastic pump, be intended to form a kind of to sealing the outer flushing scheme of reliable pressure, sparge water is taken away frictional heat, solve mechanical seal applied at elevated temperature stability, can be in relatively-high temperature (160 ℃), the lower stable operation of high pressure (1.0Mp), solve pump applied at elevated temperature stability, broken through the use restriction of current common plastics pump product and the centrifugal pump of defect.
The above-mentioned embodiment of the utility model, just illustrates, and is not only, all within the scope of the utility model or the change being equal in scope of the present utility model all by the utility model, surrounded.
Claims (4)
1. a plastic centrifugal pump, comprise pump case (1), impeller (2), pump shaft (3), pump cover (4), support (5), moving sealing ring (6), stationary seal ring (7), sealing gland (8), coupling and motor, one end of coupling is connected with the rotating shaft of motor, the other end is connected with pump shaft (3), described pump shaft (3) the other end passes the side plate of support (5) successively, pump cover (4) connects impeller (2), pump cover (4) is provided with stationary seal ring (7) with pump case (1) opposite position, sealing stationary ring (7) is enclosed within on pump shaft (3), and fastening by the sealing gland (8) in outside, sealing gland (8) is connected with pump cover (4) by bolt, described impeller (2) is arranged in the inner through hole of pump case (1), by nut, be fixed on pump shaft (3), it is characterized in that: described moving sealing ring (6) part is arranged on the plastic sleeve of pump shaft (3), another part is set directly on metal pump shaft (3), described sealing gland (8) extends back and forms a cooling jacket (11), moving sealing ring (6) is closed in this cooling jacket (11), described cooling jacket (11) is connected with water inlet tap (12) and water outlet (13), and cold water enters circulation in cooling jacket (11) from water inlet tap (12) and realizes and flowing out from water outlet (13) the cooling of moving sealing ring (6).
2. plastic centrifugal pump according to claim 1, is characterized in that: on described cooling jacket (11), be provided with outside framework oil seal (14), outside framework oil seal (14) partly forms rotary sealing with the metal of moving sealing ring (6), in order to seal cooling water.
3. plastic centrifugal pump according to claim 1, is characterized in that: described moving sealing ring (6) is provided with seal ring (15) with plastic shaft joint.
4. according to the plastic centrifugal pump described in claim 1,2 or 3, it is characterized in that: described cooling jacket (11) is realized axial restraint by the retaining ring (16) being arranged on metal pump shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320446322.XU CN203453112U (en) | 2013-07-25 | 2013-07-25 | Plastic centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320446322.XU CN203453112U (en) | 2013-07-25 | 2013-07-25 | Plastic centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203453112U true CN203453112U (en) | 2014-02-26 |
Family
ID=50132991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320446322.XU Expired - Fee Related CN203453112U (en) | 2013-07-25 | 2013-07-25 | Plastic centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203453112U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265686A (en) * | 2014-08-26 | 2015-01-07 | 利欧集团股份有限公司 | Pump body structure of self-priming pump |
| CN104948469A (en) * | 2015-07-07 | 2015-09-30 | 芜湖环球汽车配件有限公司 | Wear resistant corrosion resisting centrifugal pump |
| CN106351868A (en) * | 2016-11-07 | 2017-01-25 | 安徽卧龙泵阀股份有限公司 | Packaging type water cooling machine seal and pump with machine seal |
| CN113417866A (en) * | 2021-08-10 | 2021-09-21 | 合肥恒大江海泵业股份有限公司 | High-temperature high-pressure pump |
| CN113969895A (en) * | 2021-11-25 | 2022-01-25 | 安徽岳泉泵业制造有限公司 | Centrifugal pump, centrifugal pump assembly and production and use methods thereof |
-
2013
- 2013-07-25 CN CN201320446322.XU patent/CN203453112U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265686A (en) * | 2014-08-26 | 2015-01-07 | 利欧集团股份有限公司 | Pump body structure of self-priming pump |
| CN104265686B (en) * | 2014-08-26 | 2017-02-15 | 利欧集团浙江泵业有限公司 | Pump body structure of self-priming pump |
| CN104948469A (en) * | 2015-07-07 | 2015-09-30 | 芜湖环球汽车配件有限公司 | Wear resistant corrosion resisting centrifugal pump |
| CN106351868A (en) * | 2016-11-07 | 2017-01-25 | 安徽卧龙泵阀股份有限公司 | Packaging type water cooling machine seal and pump with machine seal |
| CN106351868B (en) * | 2016-11-07 | 2019-04-30 | 安徽卧龙泵阀股份有限公司 | A kind of packaging type water chiller envelope and the pump containing machine envelope |
| CN113417866A (en) * | 2021-08-10 | 2021-09-21 | 合肥恒大江海泵业股份有限公司 | High-temperature high-pressure pump |
| CN113417866B (en) * | 2021-08-10 | 2022-09-06 | 合肥恒大江海泵业股份有限公司 | High-temperature high-pressure pump |
| CN113969895A (en) * | 2021-11-25 | 2022-01-25 | 安徽岳泉泵业制造有限公司 | Centrifugal pump, centrifugal pump assembly and production and use methods thereof |
| CN113969895B (en) * | 2021-11-25 | 2023-07-14 | 安徽岳泉泵业制造有限公司 | Centrifugal pump, centrifugal pump assembly and production and use methods thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20140725 |
|
| EXPY | Termination of patent right or utility model |