CN2725588Y - High temperature resistant hot water circulation pump - Google Patents
High temperature resistant hot water circulation pump Download PDFInfo
- Publication number
- CN2725588Y CN2725588Y CN 200420059401 CN200420059401U CN2725588Y CN 2725588 Y CN2725588 Y CN 2725588Y CN 200420059401 CN200420059401 CN 200420059401 CN 200420059401 U CN200420059401 U CN 200420059401U CN 2725588 Y CN2725588 Y CN 2725588Y
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- CN
- China
- Prior art keywords
- cooling water
- mechanical sealing
- mechanical
- pump
- pumping mechanism
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- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Abstract
Disclosed is a high temperature resistant hot water circulation pump. The place between a rotating axle and a pump cover is formed as an annular mechanical sealing chamber. The mechanical sealing chamber is communicated with a mechanical sealing surface of a mechanical sealing mechanism through a pumping mechanism. The pumping mechanism and a sealing cover are jointed in axial direction and tightly fastened. The pumping mechanism is composed of an internal spiral of a flow guiding outer sleeve and an external spiral of a flow guiding inner sleeve which are connected. The flow guiding outer sleeve is provided with a cooling water inlet on an outer annular surface, and a cooling water inlet pathway is communicated with the mechanical sealing chamber. The outer annular surface of the sealing cover is provided with a cooling water outlet, and a cooling water outlet pathway is communicated with the interior. A rotating annular assembly and a stationary annular assembly are formed as a relatively glidingly connected mechanical sealing surface. A cooling water system self cooling water inlet, a cooling water inlet pathway, a mechanical sealing chamber, a screw surface of a pumping mechanism, a mechanical sealing surface, a cooling water outlet pathway, a cooling water outlet and a chiller are communicated and formed as an enclosed self-circulation cooling water system. The utility model solves problems of the mechanical seal leakage and the short service life of the hot-water circulating pump. The high temperature resistant hot water circulation pump is acceptable for conveying high temperature, high voltage, inflammable and explosive liquids.
Description
Technical field
The utility model relates to a kind of high temperature heat-resistant water-circulating pump.
Background technique
Generally by the sealing gland and the bearing suspension body component of the mechanical sealing mechanism between the running shaft, axle sleeve, the pump cover that is connected with the pump housing, running shaft and the pump cover that comprise impeller in the pump housing, the pump housing, center and cooling water system, mechanical seal end, its mechanical sealing mechanism includes rotating ring components, stationary ring components and holds out against spring traditional hot water circulating pump.The design of mechanical sealing mechanism and cooling water system is to draw the sealing surface that high-temperature-hot-water washes mechanical sealing mechanism from pump discharge, even by cooling, it is too many also to be difficult to make cooling water and machine sealing chamber temperature to reduce, so the life-span of mechanical sealing mechanism is very short.
The model utility content
The purpose of this utility model provides a kind of high temperature heat-resistant water-circulating pump, solves short technical problem of mechanical sealing mechanism life-span in the pump housing.
The technical solution of the utility model: this high temperature heat-resistant water-circulating pump, the sealing gland and the suspension body component that comprise mechanical sealing mechanism between running shaft, axle sleeve, the pump cover that is connected with the pump housing, running shaft and the pump cover at impeller in the pump housing, the pump housing, center and cooling water system, mechanical seal end, its mechanical sealing mechanism includes rotating ring components, stationary ring components and holds out against spring, it is characterized in that:
Between running shaft and pump cover, leave the machine sealing chamber of an annular;
Machine sealing chamber is communicated with the mechanical sealing surface of mechanical sealing mechanism through pumping mechanism;
Pumping mechanism and sealing gland be butt joint and fastening axially, pumping mechanism is formed by connecting by the external spiral that overlaps in the internal spiral of water conservancy diversion overcoat and the water conservancy diversion, the water conservancy diversion overcoat is provided with cooling water intake on outer ring surface, be connected with the cooling water inlet channel to machine sealing chamber, on the outer ring surface of sealing gland coolant outlet is arranged, inside is connected with the cooling water water outlet; Cover is fixedlyed connected with axle sleeve by key in the water conservancy diversion, is embedded with rotating ring components in the exterior edge face;
Rotating ring components and stationary ring components are axially fitting, and form the mechanical sealing surface that slide relative connects;
Cooling water system is communicated with from the helicoid, mechanical sealing surface, cooling water water outlet, coolant outlet to the cooler that cool off water inlet, cooling water inlet channel, machine sealing chamber, pumping mechanism, forms enclosed self-loopa cooling water system.
Beneficial effect: mechanical sealing mechanism of the present utility model and cooling water system employing are drawn high-temperature-hot-water from the machine sealing chamber outlet and are washed mechanical seal, make cooling water and machine sealing chamber temperature rate of cooling fast, the liquid of self forms short circle in the machine sealing chamber, thereby guaranteed temperature in the machine sealing chamber＜80 ℃, solved the difficult problem that high temperature heat-resistant water-circulating pump mechanical sealing mechanism leaks easily, the life-span is short, the water pump life-span is prolonged greatly.Also make the axial force and the radial force of pump in a basic balance, thereby the run stability of pump is improved greatly.Be applicable to and carry high temperature, high pressure and inflammable and explosive liquid, when fed sheet of a media was water, temperature can reach 250 ℃.Be specially adapted to the usefulness of the hot water circuit of steel stove fire door waste-heat oven.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is the structural representation of mechanical sealing mechanism and cooling water system.
Among the figure: 1-impeller nut, 2-casing ring, 3-impeller ring, 4-impeller, the 5-pump housing, 6-key, 7-mechanical sealing mechanism, 8-machine sealing chamber, 9-pump cover, 10-rear pressing cover, 11-dust cover, 12-axle sleeve, 13-sealing gland, 14-suspension body, 15-bearing [1], 16-bearing [2], 17-running shaft.
71-pumping mechanism, 72-hold out against cover, 74-stationary ring components, 75-rotating ring components, 76-water conservancy diversion overcoat, 77-connecting key, 78-bolt, 79-cooling water intake, 80-coolant outlet, 81-cooling water inlet channel, 82-cooling water water outlet, 83-cooler in spring, the 73-water conservancy diversion.
Embodiment
Embodiment: the centrifugal flow process hot water circulating pump of single stage single suction cantilever type is referring to Fig. 1, comprises running shaft 17, axle sleeve 12, the mechanical sealing mechanism 7 between the pump cover 9, running shaft and the pump cover that are connected with the pump housing and the cooling water system at impeller 4 in the pump housing 5, the pump housing, center, the sealing gland 13 and the suspension body component of mechanical seal end.Its pump housing 5 adopts radially subdivision, and axially level sucks, and outlet vertically spues.Supporting way is that horizontal center line supports, and distortion and displacement that rising-heat contracting-cold is produced are minimum.The sealing of the pump housing 5, pump cover 9 can adopt metal to twine the static seal pad.The pump housing of two volute chambers can ballast pump radial force, pump intake flange and exhaust port flange are all cast on the pump housing.Impeller 4 is the single suction closed type structure, impeller 4 and 6 transmissions of running shaft 17 usefulness keys, and cantilever support is fixed on the running shaft with impeller nut 1, and locking with check washer.Impeller is an integral precision casting spare, and through static balancing test, balance quality is the G6.3 level.Casing ring 2 or impeller ring 3 are removable general part, and both are guaranteed by material and different hardness thereof good coupling.Mainly by impeller self balance, the suspension body component is the supporting part of rotor to the axial force of pump, and residual axial force is born by bearing [1], bearing [2], and suspension body 14 ends also are furnished with rear pressing cover 10, copper flinger ring and dust cover 11.
The concrete structure of mechanical sealing mechanism 7 and cooling water system is referring to Fig. 1,2, and this high temperature heat-resistant water-circulating pump leaves the machine sealing chamber 8 of an annular between running shaft 17 and pump cover 9.Machine sealing chamber 8 is communicated with through the mechanical sealing surface of pumping mechanism 71 with mechanical sealing mechanism 7; Pumping mechanism 71 and axially butt joint and fastening of sealing gland 13, pumping mechanism 71 is formed by connecting by the external spiral of cover 73 in the internal spiral of water conservancy diversion overcoat 76 and the water conservancy diversion, water conservancy diversion overcoat 76 is provided with cooling water intake 79 on outer ring surface, be connected with cooling water inlet channel 81 to machine sealing chamber 8, coolant outlet 80 is arranged on the outer ring surface of sealing gland 13, and inside is connected with cooling water water outlet 82; Cover 73 is fixedlyed connected with axle sleeve 12 by connecting key 77 in the water conservancy diversion, is embedded with rotating ring components 75 in the exterior edge face; Rotating ring components 75 is axially fitting with stationary ring components 74, forms the mechanical sealing surface that slide relative connects.
Stationary ring components 74 or rotating ring components 75 are holding out against perpendicular to mechanical sealing surface by holding out against spring 72 indirectly.
Cooling water system is communicated with from the helicoid that cools off water inlet 79, cooling water inlet channel 81, machine sealing chamber 8, pumping mechanism 71, mechanical sealing surface, cooling water water outlet 82, coolant outlet 80 to cooler 83, forms enclosed self-loopa cooling water system.
The enclosed self-circulation system of this uniqueness makes in the machine sealing chamber liquid deliver to cooler by pumps water, gets back to again after the cooling in the machine sealing chamber mechanical sealing surface is washed cooling, and the enclosed self-circulation system makes that the liquid of self forms short circle in the machine sealing chamber.Make that liquid contact with extraneous liquid in the machine sealing chamber, guaranteed temperature in the machine sealing chamber＜80 ℃ to make pump mechanical seal energy proper functioning when carrying high-temperature high-pressure medium like this, prolonged the working life of mechanical seal and the repair cycle of pump.
Claims (1)
1, a kind of high temperature heat-resistant water-circulating pump, the sealing gland and the suspension body component that comprise mechanical sealing mechanism between running shaft, axle sleeve, the pump cover that is connected with the pump housing, running shaft and the pump cover at impeller in the pump housing, the pump housing, center and cooling water system, mechanical seal end, its mechanical sealing mechanism includes rotating ring components, stationary ring components and holds out against spring, it is characterized in that:
Between running shaft and pump cover, leave the machine sealing chamber of an annular;
Machine sealing chamber is communicated with the mechanical sealing surface of mechanical sealing mechanism through pumping mechanism;
Pumping mechanism and sealing gland be butt joint and fastening axially, pumping mechanism is formed by connecting by the external spiral that overlaps in the internal spiral of water conservancy diversion overcoat and the water conservancy diversion, the water conservancy diversion overcoat is provided with cooling water intake on outer ring surface, be connected with the cooling water inlet channel to machine sealing chamber, on the outer ring surface of sealing gland coolant outlet is arranged, inside is connected with the cooling water water outlet; Cover is fixedlyed connected with axle sleeve by key in the water conservancy diversion, is embedded with rotating ring components in the exterior edge face;
Rotating ring components and stationary ring components are axially fitting, and form the mechanical sealing surface that slide relative connects;
Cooling water system is communicated with from the helicoid, mechanical sealing surface, cooling water water outlet, coolant outlet to the cooler that cool off water inlet, cooling water inlet channel, machine sealing chamber, pumping mechanism, forms enclosed self-loopa cooling water system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420059401 CN2725588Y (en) | 2004-05-13 | 2004-05-13 | High temperature resistant hot water circulation pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420059401 CN2725588Y (en) | 2004-05-13 | 2004-05-13 | High temperature resistant hot water circulation pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2725588Y true CN2725588Y (en) | 2005-09-14 |
Family
ID=35040307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420059401 Expired - Fee Related CN2725588Y (en) | 2004-05-13 | 2004-05-13 | High temperature resistant hot water circulation pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2725588Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161771A (en) * | 2012-11-28 | 2013-06-19 | 河北兆宏机械泵业有限公司 | Hot oil pump shaft cooling seal |
| CN103161752A (en) * | 2012-11-28 | 2013-06-19 | 河北兆宏机械泵业有限公司 | Hot oil pump thermoscreen seal |
| CN103511324A (en) * | 2012-06-26 | 2014-01-15 | 浙江水泵总厂有限公司 | High-temperature and high-pressure combined-type mechanical sealing structure |
| CN104061188A (en) * | 2014-07-10 | 2014-09-24 | 江苏永一泵业有限公司 | Centrifugal mechanical sealing cooling system of hot water circulating pump |
| CN104791239A (en) * | 2015-03-27 | 2015-07-22 | 仪征祥源动力供应有限公司 | Efficient and energy-saving hot water pump mechanical seal cooling device |
| CN109505776A (en) * | 2018-11-30 | 2019-03-22 | 江苏维尔特泵业有限公司 | A kind of heat-exchanger pump with heat exchanger |
-
2004
- 2004-05-13 CN CN 200420059401 patent/CN2725588Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511324A (en) * | 2012-06-26 | 2014-01-15 | 浙江水泵总厂有限公司 | High-temperature and high-pressure combined-type mechanical sealing structure |
| CN103161771A (en) * | 2012-11-28 | 2013-06-19 | 河北兆宏机械泵业有限公司 | Hot oil pump shaft cooling seal |
| CN103161752A (en) * | 2012-11-28 | 2013-06-19 | 河北兆宏机械泵业有限公司 | Hot oil pump thermoscreen seal |
| CN103161752B (en) * | 2012-11-28 | 2015-06-24 | 河北兆宏机械泵业有限公司 | Hot oil pump thermoscreen seal |
| CN103161771B (en) * | 2012-11-28 | 2016-01-20 | 河北兆宏机械泵业有限公司 | Hot oil pump axis coolant seal |
| CN104061188A (en) * | 2014-07-10 | 2014-09-24 | 江苏永一泵业有限公司 | Centrifugal mechanical sealing cooling system of hot water circulating pump |
| CN104791239A (en) * | 2015-03-27 | 2015-07-22 | 仪征祥源动力供应有限公司 | Efficient and energy-saving hot water pump mechanical seal cooling device |
| CN109505776A (en) * | 2018-11-30 | 2019-03-22 | 江苏维尔特泵业有限公司 | A kind of heat-exchanger pump with heat exchanger |
| CN109505776B (en) * | 2018-11-30 | 2023-12-29 | 江苏维尔特泵业有限公司 | Hot water pump with heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |