CN211144806U - Vacuum pump system of dehydration kettle - Google Patents
Vacuum pump system of dehydration kettle Download PDFInfo
- Publication number
- CN211144806U CN211144806U CN201921738032.6U CN201921738032U CN211144806U CN 211144806 U CN211144806 U CN 211144806U CN 201921738032 U CN201921738032 U CN 201921738032U CN 211144806 U CN211144806 U CN 211144806U
- Authority
- CN
- China
- Prior art keywords
- vacuum pump
- vacuum
- liquid
- roots
- pump
- Prior art date
- 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
Links
- 230000018044 dehydration Effects 0.000 title claims abstract description 20
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims description 54
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 46
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 23
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 23
- 229920000570 polyether Polymers 0.000 claims description 23
- 238000003860 storage Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 16
- 239000002826 coolant Substances 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 2
- 238000012824 chemical production Methods 0.000 abstract description 2
- 208000005156 Dehydration Diseases 0.000 description 14
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The utility model relates to a chemical production equipment, in particular to vacuum pump system of dehydration cauldron, including the vacuum pump, the vacuum pump system still includes roots's fan, and the inlet scoop of vacuum pump communicates with roots's fan's air outlet. Under the condition of evacuation, utilize the roots's fan to extract certain vacuum earlier, later the rethread vacuum pump comes the secondary to extract vacuum, can reduce the pressure differential between vacuum pump and roots's fan air intake and the air outlet to promote the vacuum that the vacuum pump system gained.
Description
Technical Field
The utility model relates to a chemical production equipment, in particular to vacuum pump system of dehydration cauldron.
Background
The polyurethane waterproof paint is a novel waterproof material, has high strength, high elongation, high solid content and high bonding force, can be constructed at normal temperature, is simple and convenient to operate, is non-toxic and harmless, and has excellent weather resistance and ageing resistance.
In the production process of the polyurethane waterproof coating, the materials are sequentially required to be prepared, dehydrated and subjected to polymerization reaction, and filling is carried out after the reaction is finished. During the process of batching, dewatering and polymerization, the high-temperature vacuum state is required to be maintained, and particularly in the dewatering stage, the higher the negative pressure of the vacuum is, the more the dewatering is facilitated. In the prior art, a vacuum pump is usually adopted for realizing the vacuum environment in a kettle, the vacuum degree in the dehydration stage is generally maintained below-0.095 MPa, and a relatively excellent dehydration effect can be obtained, and the negative pressure extracted by the conventional vacuum pump is between-0.08 MPa and-0.09 MPa, so that the conventional vacuum pump is difficult to meet the vacuum degree requirement of dehydration.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a vacuum pump system of dehydration cauldron can gain higher vacuum.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a vacuum pump system of dehydration cauldron, includes the vacuum pump, vacuum pump system still includes the roots's fan, and the inlet scoop of vacuum pump and roots's fan's air outlet intercommunication, the pump chamber shell of vacuum pump are provided with the cooling chamber, and the cooling intracavity is filled has the coolant liquid, vacuum pump system still includes the liquid storage pot, and the liquid storage pot intercommunication is provided with the drain pipe and returns the liquid pipe, and the drain pipe all communicates with the cooling chamber with returning the liquid pipe, and the intercommunication has the tubing pump on drain pipe or returning the liquid pipe.
Through adopting above-mentioned technical scheme, under the condition of evacuation, utilize roots's fan to draw certain vacuum earlier, later rethread vacuum pump comes the secondary extraction vacuum, can reduce the pressure differential between vacuum pump and roots's fan air intake and the air outlet, thereby promote the vacuum that the vacuum pump system gained, the cooling chamber can cool off the water ring liquid of pump intracavity fast, thereby promote the efficiency of vacuum pump evacuation, the coolant liquid in the stock solution jar circulates the pump chamber of vacuum pump through drain pipe and return liquid pipe, help reducing the temperature of coolant liquid, thereby further stabilize the efficiency of vacuum pump evacuation.
The utility model discloses further set up to: the medium in the liquid storage tank is polyether glycol.
By adopting the technical scheme, the vacuum pump is cooled by utilizing the polyether glycol, the polyether glycol can be continuously heated along with the continuous operation of the vacuum pump, the heated polyether glycol can be directly used as a raw material to react, and the energy consumption of the polyether glycol which is independently heated is reduced.
The utility model discloses further set up to: the vacuum pump system further comprises a liquid collecting tank, and the liquid collecting tank is communicated with the liquid storage tank through a pipeline pump.
Through adopting above-mentioned technical scheme, after the temperature of polyether glycol rose certain limit, in carrying to album liquid jar through the tubing pump, supply normal atmospheric temperature's polyether glycol in to the stock solution jar again to make and carry out refrigerated polyether glycol temperature can not too high to the vacuum pump, guarantee refrigerated effect.
The utility model discloses further set up to: a filtering device is arranged on the pipeline between the liquid collecting tank and the liquid storage tank.
By adopting the technical scheme, the filter device can improve the purity and the cleanliness of the polyether glycol entering the liquid collecting tank.
To sum up, the utility model discloses following technological effect has:
1. the vacuum pump is connected with the Roots blower in series, so that the effect of improving the vacuum degree of the vacuum pump set is achieved;
2. the vacuum pump is cooled by the liquid storage tank, so that the vacuum pumping efficiency of the vacuum pump can be improved;
3. through adopting polyether glycol as the coolant liquid in the liquid storage tank, reached and utilized the vacuum pump heat dissipation to carry out the effect of heating to polyether glycol.
Drawings
Fig. 1 is a schematic layout of the present invention.
In the figure, 421, a vacuum pump; 422. a Roots blower; 43. a liquid storage tank; 431. a liquid outlet pipe; 432. a liquid return pipe; 44. a liquid collecting tank.
Detailed Description
As shown in fig. 1, a vacuum pump system of a dehydration kettle comprises a vacuum pump 421 and a roots blower 422, wherein an air suction port of the vacuum pump 421 is communicated with an air outlet of the roots blower 422, and an air suction port of the roots blower 422 is communicated with the dehydration kettle. The operation of vacuum pump 421 can make and form pressure differential between inlet scoop and the air outlet to form the vacuum, and add roots's fan 422 and later can utilize roots' fan 422 to carry out the secondary evacuation on the basis of vacuum pump 421 export vacuum, thereby promote the vacuum in the dehydration cauldron.
Wherein, a vacuum sensor for detecting the vacuum degree can be arranged in the dehydration kettle, the vacuum degree in the dehydration kettle is detected, when the vacuum degree is reduced to a certain value, such as less than-0.09 MPa, the Roots blower 422 and the vacuum pump 421 are started simultaneously to vacuumize until the vacuum degree meets the requirement, such as-0.095 MPa; then, when the vacuum degree is maintained within a certain range, the Roots blower 422 is closed, the vacuum degree is maintained by the operation of the vacuum pump 421, and energy is saved.
The water ring vacuum pump that vacuum pump 421 generally adopted, water ring vacuum pump need the medium at the in-process of operation, and general medium is water, and at the in-process of operation because the shearing action of blade, the temperature can rise step by step, and along with evacuation goes on, the boiling point will reduce when the temperature rises, and the performance of a large amount of moisture evaporation meeting greatly reduced vacuum pump 421 evacuation consequently need cool off constantly to the medium in vacuum pump 421 to guarantee vacuum pump 421's efficiency. A cooling cavity can be arranged on the pump cavity shell of the vacuum pump 421, and the cooling liquid is filled in the cooling cavity to cool the working medium in the pump cavity, so that the cooling effect is achieved.
The cooling fluid in the cooling chamber is preferably circulated to avoid a decrease in cooling efficiency due to a continuous rise in cooling fluid temperature, and therefore, as shown in fig. 1, a reservoir 43 may be provided in the vacuum pump system. The liquid storage tank 43 is provided with a liquid outlet pipe 431 and a liquid return pipe 432 in a communicating manner, the liquid outlet pipe 431 and the liquid return pipe 432 are both communicated with the cooling cavity, and the liquid outlet pipe 431 or the liquid return pipe 432 are communicated with a pipeline pump. The coolant in the liquid storage tank 43 is used for circulating the pump cavity of the vacuum pump 421 through the liquid outlet pipe 431 and the liquid return pipe 432, which helps to reduce the temperature of the coolant, thereby further stabilizing the vacuum pumping efficiency of the vacuum pump 421.
The cooling liquid in the liquid storage tank 43 can adopt water or other media, and the cooling medium in the utility model adopts polyether glycol. The polyether glycol is a necessary material in the production of polyurethane waterproof materials, and is sent into a batching kettle before reaction, and is batched and mixed with other raw materials after being heated. After the polyether glycol is used as a cooling medium, the polyether glycol can be gradually heated along with the heat exchange in the cooling process, and then the heated polyether glycol is directly pumped into the batching kettle, so that the energy for heating the polyether glycol can be saved while the vacuum pump is cooled, and the comprehensive utilization of the energy is realized.
Meanwhile, as shown in fig. 1, a liquid collection tank 44 may be further provided, and the liquid collection tank 44 and the liquid storage tank 43 are communicated through a pipeline pump. After the temperature of the polyether glycol in the liquid storage tank 43 rises to a certain range, the polyether glycol is conveyed into the liquid collection tank 44 through the pipeline pump, and then the normal-temperature polyether glycol is supplemented into the liquid storage tank 43, so that the temperature of the polyether glycol for cooling the vacuum pump 421 is not too high, and the cooling effect is ensured.
A filter is preferably provided between the reservoir 43 and the collector 44 to ensure the purity and cleanliness of the polyether glycol. The most conventional filter device is a filter screen, although other filter devices are equally suitable.
The utility model discloses a working process does:
starting the vacuum pump 421 and the Roots blower 422 at the same time, vacuumizing the dehydration kettle, closing the Roots blower 422 when the vacuum degree reaches-0.095 MPa, and only maintaining the vacuum degree by using the vacuum pump 421; along with the gradual reduction of the vacuum degree, when the vacuum degree is reduced to-0.09 MPa, the Roots blower 422 is started again to carry out vacuum pumping operation, so that the effect of improving the vacuum degree in the dehydration kettle is realized.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a vacuum pump system of dehydration cauldron, includes vacuum pump (421), its characterized in that, vacuum pump system still includes roots's fan (422), and the inlet scoop of vacuum pump (421) and the air outlet intercommunication of roots's fan (422), the pump chamber shell of vacuum pump (421) is provided with the cooling chamber, and the cooling intracavity is filled with the coolant liquid, vacuum pump system still includes liquid storage pot (43), and liquid storage pot (43) intercommunication is provided with drain pipe (431) and liquid return pipe (432), and drain pipe (431) and liquid return pipe (432) all communicate with the cooling chamber, and the intercommunication has the tubing pump on drain pipe (431) or liquid return pipe (432).
2. A vacuum pumping system for a dehydration kettle according to claim 1 characterized in that the medium in the liquid storage tank (43) is polyether glycol.
3. A vacuum pumping system for a dehydration kettle according to claim 1, characterized in that said vacuum pumping system further comprises a liquid collection tank (44), said liquid collection tank (44) and liquid storage tank (43) are connected by pipeline pump.
4. A vacuum pumping system for a dehydration kettle according to claim 3 characterized in that a filtering device is provided on the pipeline between the liquid collection tank (44) and the liquid storage tank (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921738032.6U CN211144806U (en) | 2019-10-16 | 2019-10-16 | Vacuum pump system of dehydration kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921738032.6U CN211144806U (en) | 2019-10-16 | 2019-10-16 | Vacuum pump system of dehydration kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211144806U true CN211144806U (en) | 2020-07-31 |
Family
ID=71773649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921738032.6U Expired - Fee Related CN211144806U (en) | 2019-10-16 | 2019-10-16 | Vacuum pump system of dehydration kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211144806U (en) |
-
2019
- 2019-10-16 CN CN201921738032.6U patent/CN211144806U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204402891U (en) | A kind of energy saving and environment friendly Roots vacuum system | |
| CN211144806U (en) | Vacuum pump system of dehydration kettle | |
| CN203518664U (en) | Water ring vacuum pump complete equipment for vacuumization of condenser in power station | |
| CN205744492U (en) | A kind of environmental protection water pump of green energy conservation | |
| CN206071885U (en) | A kind of vacuum tube residual heat using device of oil conditioner vacuum pump | |
| CN111099960A (en) | Collecting method of hexafluorobutadiene | |
| CN203167999U (en) | Vacuum pumping device for tobacco vacuum box | |
| CN204421294U (en) | A kind of Edible Fungi refrigeration air-conditioner waste heat utilization system | |
| CN208860156U (en) | A kind of working medium reclaiming type Condenser Vacuum Pressure maintains and improves system | |
| CN203355310U (en) | Efficient energy-saving honey concentration equipment and production system | |
| CN210529429U (en) | Mobile rubber asphalt storage and processing device | |
| CN211514239U (en) | Energy-saving semisolid slurry preparation machine | |
| CN209189472U (en) | A kind of hydrochloric acid entrucking extractor fan | |
| CN208871950U (en) | A kind of double round robin cooling system | |
| CN203919266U (en) | The redwood vacuum drying casting all-in-one with cylinder folding top cap | |
| CN205134428U (en) | Device of system water in follow air | |
| CN205205926U (en) | Device of system water in follow air | |
| CN205151879U (en) | Biochemical pond intensification system of air compressor machine waste heat retrieves | |
| CN205578216U (en) | Environment -friendly vacuum unit | |
| CN211005310U (en) | System for fermenting, brewing and extracting edible oil | |
| CN220769707U (en) | Air-cooled efficient water ring vacuum pump set | |
| CN204646677U (en) | A kind of air compressor heat recovery cooling system | |
| CN205190443U (en) | Motor is hydraulic pressure cooling device for frock | |
| CN205269362U (en) | Energy -saving compressed air dewatering heat sink | |
| CN205578241U (en) | Low consumption environment -friendly vacuum unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |