CN204755408U - Cooling device before magnetic drive pump pump - Google Patents
Cooling device before magnetic drive pump pump Download PDFInfo
- Publication number
- CN204755408U CN204755408U CN201520383206.7U CN201520383206U CN204755408U CN 204755408 U CN204755408 U CN 204755408U CN 201520383206 U CN201520383206 U CN 201520383206U CN 204755408 U CN204755408 U CN 204755408U
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- China
- Prior art keywords
- pump
- magnetic drive
- drive pump
- cavity
- cooling unit
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Abstract
The utility model provides a cooling device before magnetic drive pump pump includes cavity, shell, cooling water inlet, coolant outlet, connecting portion, the interior strength of the internal diameter of cavity and the pipeline of the pumped (conveying) medium of magnetic drive pump is unanimous, and the shell wrap up on the cavity, joins in marriage dress cooling water inlet and coolant outlet on the shell, the outer vacuole formation structure of shell and cavity, cooling water inlet and coolant outlet and cavity structure communicate with each other, and the dress is joined in marriage in the one end of cavity to connecting portion, and connecting portion are used for joining in marriage the dress with the magnetic drive pump. Will the utility model provides a cooling device before magnetic drive pump pump installs additional before the magnetic drive pump, and simple structure easily operates and maintains, and can reduce the temperature of pump to prolong magnetic drive pump life effectively, reduced the maintenance cost.
Description
Technical field:
The utility model relates to magnetic drive pump cooling technology field, particularly cooling unit before a kind of magnetic drive pump pump.
Background technique:
Magnetic drive pump is the new product working principle of permanent magnetism shaft coupling being applied to centrifugal pump, magnetic force driving pump utilizes magnetic coupling to replace traditional coupling, achieve the non contact transmission of power and torque, thoroughly solve the problem of mechanical pump " run, drip, leak ", reach complete leak free effect, reasonable in design, technique is advanced, have hermetically sealed, No leakage, the advantage such as corrosion-resistant.Be widely used in poisonous, inflammable, explosive in the industries such as smelting, petrochemical industry, medicine, plastics, food, nuclear industry and sewage treatment, corrosion and the conveying of various valuable medium.But when medium temperature is higher than permanent magnet temperature or the lower liquid of conveying boiling point lower saturation vapor pressure, the harm such as easy generation permanent magnet demagnetization and cavitation, the pump housing is caused to damage, cause the life-span, the technical barrier such as efficient, safe and reliable cannot be solved, the reliability of pump and efficiency thereof are had a greatly reduced quality, improves the use and maintenance cost of pump simultaneously virtually.
Summary of the invention:
In view of this, cooling unit before a kind of magnetic drive pump pump is provided to provide.
Cooling unit before a kind of magnetic drive pump pump, comprise cavity, shell, cooling water inlet, coolant outlet, joint, the internal diameter of cavity is consistent with the interior strength of the pipeline of the fed sheet of a media of magnetic drive pump, shell is wrapped on cavity, equipped cooling water inlet and coolant outlet on shell, the skin of shell and cavity forms cavity structure, and cooling water inlet and coolant outlet communicate with cavity structure, joint is fitted in one end of cavity, and joint is used for being equipped with magnetic drive pump.
Preferably, before magnetic drive pump pump, cooling unit also comprises radiator, equipped radiator on the outer surface of cavity.
Preferably, radiator is gilled radiator.
Preferably, radiator is equipped with by flange and cavity and magnetic drive pump.
Preferably, the cooling water inlet of cooling unit and coolant outlet equipped sensor temperature meter respectively before magnetic drive pump pump, sensor temperature meter is used for finding out whether the medium to magnetic drive pump conveying reaches conveying requirement intuitively.
Preferably, sensor temperature counts digital display type thermometer.
Joint of the present utility model and magnetic drive pump are equipped with; before the fed sheet of a media of higher temperatures enters magnetic drive pump; cooled by cooling unit before pump; fed sheet of a media is by after cooling unit before pump; temperature enters magnetic drive pump after obtaining reduction; the operation of magnetic drive pump obtains good protection; so; before before the magnetic drive pump pump provided by the utility model, cooling unit is installed at magnetic drive pump; structure is simple, is easy to Operation and maintenance, and can reduces the temperature of pump; and effectively extend magnetic drive pump working life, reduce maintenance cost.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of cooling unit before magnetic drive pump pump.
In figure: cavity 1, shell 2, cooling water inlet 3, coolant outlet 4, joint 5, radiator 6.
Embodiment:
Refer to Fig. 1, before magnetic drive pump pump, cooling unit comprises cavity 1, shell 2, cooling water inlet 3, coolant outlet 4, joint 5, the internal diameter of cavity 1 is consistent with the interior strength of the pipeline of the fed sheet of a media of magnetic drive pump, shell 2 is wrapped on cavity 1, equipped cooling water inlet 3 and coolant outlet 4 on shell 2, shell 2 forms cavity structure with the skin of cavity 1, cooling water inlet 3 and coolant outlet 4 communicate with cavity structure, joint 5 is fitted in one end of cavity 1, and joint 5 is for being equipped with magnetic drive pump.
Before magnetic drive pump pump, cooling unit also comprises radiator 6, equipped radiator 6 on the outer surface of cavity 1, and radiator 6 be gilled radiator, radiator 6 by flange and cavity 1 and magnetic drive pump equipped.
The cooling water inlet 3 of cooling unit and coolant outlet 4 equipped sensor temperature meter respectively before magnetic drive pump pump, sensor temperature meter is used for finding out whether the medium to magnetic drive pump conveying reaches conveying requirement, and sensor temperature counts digital display type thermometer intuitively.
Cooling unit before equipped magnetic drive pump pump on the pipeline that magnetic drive pump fed sheet of a media enters magnetic drive pump, cavity 1 is connected with pipeline, cooled fed sheet of a media by radiator 6 and cooling water, sensor temperature meter can find out whether the temperature of magnetic drive pump fed sheet of a media reaches conveying requirement intuitively.
Adopt the utility model paraxylene, ethylbenzene and ether to carry, the effect of conveying is specially:
One, the conveying of dimethylbenzene
Dimethylbenzene is colourless transparent liquid, be on phenyl ring two hydrogen by methyl substituted product, exist adjacent, to three kinds of isomer.Industrially, namely dimethylbenzene refer to the mixture of above-mentioned isomer.Boiling point is 137 ~ 140 DEG C.Dimethylbenzene tool penetrating odor, inflammable, can mix arbitrarily with ethanol, chloroform or ether, insoluble in water.Micro-poison, irritant, there is narcoticness during steam high concentration.Now adopt the conveying of CQB100-65-250 magnetic drive pump, its performance parameter is as following table:
CQB stainless steel magnetic force driving pump performance parameter:
Known dimethylbenzene discharge pressure 0.2MPa, temperature 60 C.
If 1 does not use any cooling unit, directly carry dimethylbenzene.Effect due to magnetic drive pump will certainly make dimethylbenzene temperature improve.Now suppose that magnetic drive pump inlet temperature is 60 DEG C, outlet temperature is 80 DEG C.
2, when cooling unit before this magnetic drive pump pump of use, known cooling unit cavity diameter is 100mm, and heat transfer area is 100m
2, dimethylbenzene flow is 100m
3/ h, inlet temperature is 60 DEG C.The pressure of recirculated cooling water is 0.4MPa, and flow is 10kg/s, and inlet temperature is 7 DEG C, and the temperature of outlet is 12 DEG C; Dimethylbenzene and cooling water are counter-current flow.If heat transfer coefficient of heat exchanger is 300w/m
2.k, the mean specific heat 1.82kJ/ (kg.k) of 60 DEG C of dimethylbenzene, when 7 DEG C, the mean specific heat of water is 4.20kJ/ (kg.k).The relevant parameter of hot fluid is: flow V
1, inlet temperature t
1', outlet temperature t
1", mean specific heat c
1; The relevant parameter of cold fluid is: flow V
2, inlet temperature t
2', outlet temperature t
2", mean specific heat c
2.According to thermal equilibrium, there is V
1c
1(t
1'-t
1")=V
2c
2(t
2"-t
2') V in above-mentioned formula
1, t
1', t
1", V
2, t
2', t
2" in five parameters be known, therefore the 6th unknown parameter can be calculated according to thermal equilibrium formula.I.e. outlet temperature t
2", at this moment t
1"=t
1'-V
2c
2(t
2"-t
2')/(V
1c
1) dimethylbenzene outlet temperature is in this example as calculated: 55.85 DEG C, namely magnetic drive pump inlet temperature is 55.85 DEG C.The medium temperature entering magnetic drive pump is significantly reduced, and solves the potential safety hazard existed in dimethylbenzene course of conveying.
Two, the conveying of ethylbenzene
A kind of aromatic hydrocarbons of ethylbenzene, molecular formula C
6h
5c
2h
5.Be present in coal tar oil and some diesel oil, inflammable, its steam and air can form explosive mixture.Meet naked light, Gao Re or and oxidising agent, have the danger causing combustion explosion, poisonous, fusing point (DEG C) :-94.9; Boiling point (DEG C): 136.2; Relative density (water=1): 0.87; Relative vapor density (air=1): 3.66; Saturation vapor pressure (KPa): 1.33 (25.9 DEG C); Critical temperature (DEG C): 343.1; Critical pressure (MPa): 3.70 now adopt the conveying of CQB100-65-250 magnetic drive pump, and its performance parameter is as following table:
CQB stainless steel magnetic force driving pump performance parameter:
Known ethylbenzene discharge pressure 0.2MPa, temperature 20 DEG C.
If 1 does not use any cooling unit, directly carry ethylbenzene.Effect due to magnetic drive pump will certainly make ethylbenzene temperature improve.Now suppose that magnetic drive pump inlet temperature is 20 DEG C, outlet temperature is 25 DEG C.
2, when cooling unit before this magnetic drive pump pump of use, the cavity diameter of known cooling unit is 100mm, and heat transfer area is 100m
2, ethylbenzene flow is 100m
3/ h, inlet temperature is 20 DEG C.The pressure of recirculated cooling water is 0.4MPa, and flow is 10kg/s, and inlet temperature is 7 DEG C, and the temperature of outlet is 12 DEG C; Ethylbenzene and cooling water are counter-current flow.If heat transfer coefficient of heat exchanger is 300w/m
2.k, the mean specific heat 1.77kJ/ (kg.k) of 20 DEG C of ethylbenzene, when 7 DEG C, the mean specific heat of water is 4.20kJ/ (kg.k).The relevant parameter of hot fluid is: flow V
1, inlet temperature t
1', outlet temperature t
1", mean specific heat c
1; The relevant parameter of cold fluid is: flow V
2, inlet temperature t
2', outlet temperature t
2", mean specific heat c
2.According to thermal equilibrium, there is V
1c
1(t
1'-t
1")=V
2c
2(t
2"-t
2') V in above-mentioned formula
1, t
1', t
1", V
2, t
2', t
2" in five parameters be known, therefore the 6th unknown parameter can be calculated according to thermal equilibrium formula.I.e. outlet temperature t
2", at this moment t
1"=t
1'-V
2c
2(t
2"-t
2')/(V
1c
1).In this example, ethylbenzene outlet temperature is as calculated: 15.73 DEG C, and namely magnetic drive pump inlet temperature is: 15.73 DEG C.The medium temperature entering magnetic drive pump is significantly reduced, and solves the potential safety hazard existed in ethylbenzene course of conveying.
Three, the conveying of ether
Ether is colourless transparent liquid.There is specific stimulation smell.Band sweet taste.Highly volatile.Its steam overweights air.Superoxide, aldehyde and acetic acid can be oxidized under the effect of air, under being exposed to light, can promote that it is oxidized.When containing superoxide in ether, when the superoxide of institute's separating residual is heated to more than 100 DEG C after evaporation, violent explosion can be caused; These superoxide can add 5% ferrous sulfate aqueous solution jolting removing.React with the mixture of anhydrous nitric acid, the concentrated sulphuric scid and red fuming nitric acid (RFNA) and also high-explosive can occur.Be dissolved in low-carbon alcohols, benzene, chloroform, petroleum ether and oils, be slightly soluble in water.Relative density 0.7134; Fusing point-116.3 DEG C; Boiling point 34.6 DEG C; Refractive index 1.35555; Flash-point (closed-cup)-45 DEG C; Inflammable, low toxicity.Now adopt the conveying of CQB100-65-250 magnetic drive pump, its performance parameter is as following table:
CQB stainless steel magnetic force driving pump performance parameter:
Known ether discharge pressure 0.2MPa, temperature 30 DEG C.
If 1 does not use any cooling unit, directly carry ether.Effect due to magnetic drive pump will certainly make ether temperature improve.Now suppose that magnetic drive pump inlet temperature is 30 DEG C, outlet temperature is 35 DEG C.
2, when cooling unit before this magnetic drive pump pump of use, the cavity diameter of known cooling unit is 100mm, and heat transfer area is 100m
2, ether flow is 100m
3/ h, inlet temperature is 30 DEG C.The pressure of recirculated cooling water is 0.4MPa, and flow is 10kg/s, and inlet temperature is 7 DEG C, and the temperature of outlet is 12 DEG C; Ether and cooling water are counter-current flow.If heat transfer coefficient of heat exchanger is 300w/m
2.k, the mean specific heat 1.82kJ/ (kg.k) of 30 DEG C of ether, when 7 DEG C, the mean specific heat of water is 4.20kJ/ (kg.k).The relevant parameter of hot fluid is: flow V
1, inlet temperature t
1', outlet temperature t
1", mean specific heat c
1; The relevant parameter of cold fluid is: flow V
2, inlet temperature t
2', outlet temperature t
2", mean specific heat c
2.According to thermal equilibrium, there is V
1c
1(t
1'-t
1")=V
2c
2(t
2"-t
2') V in above-mentioned formula
1, t
1', t
1", V
2, t
2', t
2" in five parameters be known, therefore the 6th unknown parameter, i.e. outlet temperature t can be calculated according to thermal equilibrium formula
2", at this moment t
1"=t
1'-V
2c
2(t
2"-t
2')/(V
1c
1).In this example, ether outlet temperature is as calculated: 25.84 DEG C, and namely magnetic drive pump inlet temperature is: 25.84 DEG C.The medium temperature entering magnetic drive pump is significantly reduced, and solves the potential safety hazard existed in ether course of conveying.
Change cooling unit before pump through case verification and effectively can reduce the temperature that medium enters magnetic drive pump.
Claims (6)
1. cooling unit before a magnetic drive pump pump, it is characterized in that: before magnetic drive pump pump, cooling unit comprises cavity, shell, cooling water inlet, coolant outlet, joint, the internal diameter of cavity is consistent with the interior strength of the pipeline of the fed sheet of a media of magnetic drive pump, shell is wrapped on cavity, equipped cooling water inlet and coolant outlet on shell, the skin of shell and cavity forms cavity structure, cooling water inlet and coolant outlet communicate with cavity structure, joint is fitted in one end of cavity, and joint is used for being equipped with magnetic drive pump.
2. cooling unit before magnetic drive pump pump as claimed in claim 1, is characterized in that: before magnetic drive pump pump, cooling unit also comprises radiator, equipped radiator on the outer surface of cavity.
3. cooling unit before magnetic drive pump pump as claimed in claim 2, is characterized in that: radiator is gilled radiator.
4. cooling unit before magnetic drive pump pump as claimed in claim 2, is characterized in that: radiator by flange and cavity and magnetic drive pump equipped.
5. cooling unit before magnetic drive pump pump as claimed in claim 1, it is characterized in that: the cooling water inlet of cooling unit and coolant outlet equipped sensor temperature meter respectively before magnetic drive pump pump, sensor temperature meter is used for finding out whether the medium to magnetic drive pump conveying reaches conveying requirement intuitively.
6. cooling unit before magnetic drive pump pump as claimed in claim 5, is characterized in that: sensor temperature counts digital display type thermometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520383206.7U CN204755408U (en) | 2015-06-04 | 2015-06-04 | Cooling device before magnetic drive pump pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520383206.7U CN204755408U (en) | 2015-06-04 | 2015-06-04 | Cooling device before magnetic drive pump pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204755408U true CN204755408U (en) | 2015-11-11 |
Family
ID=54470119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520383206.7U Expired - Fee Related CN204755408U (en) | 2015-06-04 | 2015-06-04 | Cooling device before magnetic drive pump pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204755408U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640761A (en) * | 2016-12-05 | 2017-05-10 | 申晓丽 | Water pump with improved structure |
-
2015
- 2015-06-04 CN CN201520383206.7U patent/CN204755408U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640761A (en) * | 2016-12-05 | 2017-05-10 | 申晓丽 | Water pump with improved structure |
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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: 20151111 Termination date: 20160604 |