CN204284007U - A kind of cooling structure of hot water circulating pump - Google Patents
A kind of cooling structure of hot water circulating pump Download PDFInfo
- Publication number
- CN204284007U CN204284007U CN201420597094.0U CN201420597094U CN204284007U CN 204284007 U CN204284007 U CN 204284007U CN 201420597094 U CN201420597094 U CN 201420597094U CN 204284007 U CN204284007 U CN 204284007U
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- Prior art keywords
- pump cover
- pump
- cooling
- hot water
- water circulating
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Abstract
The utility model discloses a kind of cooling structure of hot water circulating pump, belong to mechanical manufacturing field, comprise the pump housing and pump cover, described pump cover is connected with the described pump housing, the described pump housing is provided with the higher hot chamber of temperature and the lower cooling chamber of temperature, described pump cover, between described hot chamber and cooling chamber, is provided with High Temperature High Pressure thermal baffle in described pump cover, described in be arranged in the bearing of trend of the High Temperature High Pressure thermal baffle of described pump cover vertical with the heat direction of transfer of described pump cover.The technical solution of the utility model compact structure, rate of cooling are fast, and cavity casting is simpler, convenient, and pump group external pipeline is convenient.
Description
Technical field
The utility model belongs to mechanical manufacturing field, relates to a kind of cooling structure, particularly relates to a kind of cooling structure of high-temperature-hot-water recycle pump.
Background technique
Hot water circulating pump is mainly used in the industries such as metallurgy, power station, rubber and chemical industry, carries 100 DEG C--and the high-temperature-hot-water of 250 DEG C, its groundwork feature is that temperature is high, and the inlet and outlet pressure of pump is also higher in addition, generally at 2--5MPa.Structural type is mostly unit single-suction centrifugal pump, due to the working pressure of pump and temperature higher, require the height of material than general centrifugal pump of contact liq part, pump case is thicker, and usual sealing means has three kinds: float ring seal, mechanical seal and packing seal.
Hot water circulating pump is under high-temperature high-inlet pressure operating mode, and the structure Shortcomings part of different sealing is respectively:
1), when adopting float ring seal, the accuracy of manufacturing of Sealing requires high, the nonconcentricity of ring and the non-perpendicularity of section and surface not roughness have a great impact sealability, in addition this sealing can not be accomplished to obturage to liquid and do not leaked, itself there is larger amount of leakage, High Temperature High Pressure hot water is vaporized in a large number after revealing and is full of whole pump house, be unfavorable for very much maintenance and the maintenance of pump and other equipment, add some the floating soda acid powder in factory, easily cause chemical reaction and electrochemical corrosion, thus the aging and inefficacy of accelerating pump and other equipment, the not only uneconomical safe operation also jeopardizing factory.
2), when adopting packing seal, owing to being high-temp liquid in pump case, heat can be a large amount of to cooling system and sealing system transmission, add that the friction of filler itself also can produce heat, pressure is higher simultaneously, and the impacting force of filler is also larger, result makes the loss of filler and packing sleeve accelerate, thus increasing the number of times of maintenance, this frequent operation has a strong impact on the normal operation of unit, and is easy to accidents caused.
3), when adopting mechanical seal, during the high temperature that medium is about 240 DEG C, mechanical seal is unaffordable, the measure that cools reliably must be had, otherwise the non-metal component of mechanical seal can rapid ageing failure, and metallic member also can be subject to certain thermal shock, the lubricity of high-temperature water is poor simultaneously, friction pair can be made to lose efficacy accelerate, so cooling is very important.
The cooling structure of existing hot water circulating pump generally all adopts on pump cover and makes cooling chamber, the mode of cold water is led to by cooling chamber, to reach the object of coolant seal, but this cooling system is all right for lower medium temperature effect, not ideal for the high temp effect of about 240 DEG C.
Model utility content
In view of this, the utility model is suitable for the defect of weak effect for existing cooling structure high temperature, provides a kind of cooling structure of hot water circulating pump.
For achieving the above object, concrete technological scheme is as follows:
A kind of cooling structure of hot water circulating pump, comprise the pump housing and pump cover, described pump cover is connected with the described pump housing, the described pump housing is provided with the higher hot chamber of temperature and the lower cooling chamber of temperature, described pump cover is between described hot chamber and cooling chamber, be provided with High Temperature High Pressure thermal baffle in described pump cover, described in be arranged in the bearing of trend of the High Temperature High Pressure thermal baffle of described pump cover vertical with the heat direction of transfer of described pump cover.
Preferably, the shape of described pump cover is annular, and the shape of described High Temperature High Pressure thermal baffle is in the form of annular discs, and described High Temperature High Pressure thermal baffle closes on the hot chamber of the described pump housing.
Preferably, also comprise backplate, described backplate is connected with described pump cover, and described High Temperature High Pressure thermal baffle is located between described backplate and pump cover.
Preferably, described backplate is connected with described pump cover by Cock screw.
Preferably, also comprise intermediate support, described intermediate support is connected with pump cover with the described pump housing respectively, forms cooling chamber between described intermediate support and described pump cover.
Preferably, be connected by O type circle between described intermediate support with described pump cover.
Preferably, be also provided with stiffening rib in described cooling chamber, described stiffening rib is connected with described pump cover.
Preferably, described intermediate support is also provided with the tapped hole connecting cooling water pipeline.
Relative to prior art, the advantage of the technical solution of the utility model has:
1, compared to existing cooling structure cooling rapidly, the cooling requirement of sealing and spindle unit has been better met;
2, the demand of conveying high temperature media has been better met;
3, the cooling chamber that forms of pump cover and intermediate support, adds film-cooled heat, makes cooling effect more remarkable;
4, cavity casting is more simple, convenient, and the position of cooling line of spatially having staggered, offers convenience to pump group external pipeline.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation in I portion in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below with reference to accompanying drawing, concrete explaination is done to embodiment of the present utility model.
The cooling structure of a kind of hot water circulating pump of embodiment of the present utility model as shown in Figures 1 and 2, comprises the pump housing 1 and pump cover 2.Pump cover 2 is connected with the pump housing 1, and the pump housing 1 is provided with the higher hot chamber of temperature and the lower cooling chamber of temperature.Pump cover 2 is between hot chamber and cooling chamber.Be provided with High Temperature High Pressure thermal baffle 5 in pump cover 2, the bearing of trend being arranged in the High Temperature High Pressure thermal baffle 5 of pump cover 2 is vertical with the heat direction of transfer of pump cover 2.
Embodiment of the present utility model manufactures a discoid cavity on pump cover 2, and filled high-temperature high pressure thermal baffle 5.Thereafter, connect backplate 4 and pump cover 2 with hexagonal flush end Cock screw 6 in GB/T77, make backplate 4 fully compress High Temperature High Pressure thermal baffle 5.Because the thermal resistance of High Temperature High Pressure thermal baffle 5 is very large, almost can ignore by the heat of this part surface conductance to cooling chamber, can the residual area of heat conduction very little, so just reduce the heat-transfer capability of pump cover 2.On pump cover 2 manufacture disk cavity shape can according to operating conditions parameter determine.
As shown in Figure 1, in embodiment of the present utility model, by original cooling chamber cast at pump cover 2 merely, change cavity that pump cover 2 and intermediate support 3 seal into as cooling chamber.Advantage is that cooling cavities becomes large, and the heat transfer area of water quench increases, better coolant seal and spindle unit, and the spatial position of the more effective pipeline that staggers when connecing cooling line, is convenient to install cooling line simultaneously.
In addition, as shown in Figure 1, in embodiment of the present utility model, pump cover 2 designs stiffening rib 8, advantage is to strengthen while pump cover 2 intensity prevents metallic high temperature creep serves as Heat sink, spatially increases the area contacted with cooling water, better cool in cooling chamber.
As shown in figs. 1 and 2, in embodiment of the present utility model, the sealing surface contacted with intermediate support 3 at pump cover 2 designs O type circle 7, better seals cooling chamber, is unlikely to that cooling water occurs and reveals.
Meanwhile, intermediate support has and connects cooling water pipeline tapped hole, arranges cooling water inlet pipe and outlet pipe respectively, and is provided with pipe plug 9.
Be described in detail specific embodiment of the utility model above, but it is just as example, the utility model is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the utility model is carried out and substituting also all among category of the present utility model.Therefore, not departing from the equalization conversion and amendment done under spirit and scope of the present utility model, all should be encompassed in scope of the present utility model.
Claims (8)
1. the cooling structure of a hot water circulating pump, it is characterized in that, comprise the pump housing and pump cover, described pump cover is connected with the described pump housing, the described pump housing is provided with the higher hot chamber of temperature and the lower cooling chamber of temperature, described pump cover, between described hot chamber and cooling chamber, is provided with High Temperature High Pressure thermal baffle in described pump cover, described in be arranged in the bearing of trend of the High Temperature High Pressure thermal baffle of described pump cover vertical with the heat direction of transfer of described pump cover.
2. the cooling structure of hot water circulating pump as claimed in claim 1, is characterized in that, the shape of described pump cover is annular, and the shape of described High Temperature High Pressure thermal baffle is in the form of annular discs, and described High Temperature High Pressure thermal baffle closes on the hot chamber of the described pump housing.
3. the cooling structure of hot water circulating pump as claimed in claim 1, it is characterized in that, also comprise backplate, described backplate is connected with described pump cover, and described High Temperature High Pressure thermal baffle is located between described backplate and pump cover.
4. the cooling structure of hot water circulating pump as claimed in claim 3, it is characterized in that, described backplate is connected with described pump cover by Cock screw.
5. the cooling structure of hot water circulating pump as claimed in claim 4, it is characterized in that, also comprise intermediate support, described intermediate support is connected with pump cover with the described pump housing respectively, forms cooling chamber between described intermediate support and described pump cover.
6. the cooling structure of hot water circulating pump as claimed in claim 5, be is characterized in that, be connected between described intermediate support with described pump cover by O type circle.
7. the cooling structure of hot water circulating pump as claimed in claim 6, it is characterized in that, be also provided with stiffening rib in described cooling chamber, described stiffening rib is connected with described pump cover.
8. the cooling structure of hot water circulating pump as claimed in claim 7, is characterized in that, described intermediate support is also provided with the tapped hole connecting cooling water pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420597094.0U CN204284007U (en) | 2014-10-15 | 2014-10-15 | A kind of cooling structure of hot water circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420597094.0U CN204284007U (en) | 2014-10-15 | 2014-10-15 | A kind of cooling structure of hot water circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204284007U true CN204284007U (en) | 2015-04-22 |
Family
ID=52867172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420597094.0U Expired - Fee Related CN204284007U (en) | 2014-10-15 | 2014-10-15 | A kind of cooling structure of hot water circulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204284007U (en) |
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2014
- 2014-10-15 CN CN201420597094.0U patent/CN204284007U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20201015 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |