CN212440091U - Chloroform evaporation closed type vacuum pumping water circulation device - Google Patents
Chloroform evaporation closed type vacuum pumping water circulation device Download PDFInfo
- Publication number
- CN212440091U CN212440091U CN202021121909.XU CN202021121909U CN212440091U CN 212440091 U CN212440091 U CN 212440091U CN 202021121909 U CN202021121909 U CN 202021121909U CN 212440091 U CN212440091 U CN 212440091U
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- Prior art keywords
- chloroform
- water
- pipeline
- vacuum
- outlet
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- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 title claims abstract description 194
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 238000005086 pumping Methods 0.000 title claims abstract description 22
- 238000001704 evaporation Methods 0.000 title claims abstract description 13
- 230000008020 evaporation Effects 0.000 title claims abstract description 13
- 239000000498 cooling water Substances 0.000 claims abstract description 21
- 238000009835 boiling Methods 0.000 claims description 11
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- 239000005457 ice water Substances 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract 6
- 238000010168 coupling process Methods 0.000 abstract 6
- 238000005859 coupling reaction Methods 0.000 abstract 6
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 11
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 231100000053 low toxicity Toxicity 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 235000019605 sweet taste sensations Nutrition 0.000 description 1
- 238000009489 vacuum treatment Methods 0.000 description 1
Images
Abstract
The utility model provides a chloroform evaporates closed evacuation water circle device, the evaporimeter includes that one imitates the charge pump, two imitate the charge pump, plate heat exchanger, closed water circle device, one imitates the heater, one imitates the separator, two imitate the heater, two imitate the separator, the condenser, chloroform collection tank and frequency conversion evacuation pump, one imitates the charge pump tube coupling and imitates the heater, one imitates the heater tube coupling and imitates the separator, one imitates the separator tube coupling and imitates charge pump and condenser respectively, two imitates the charge pump tube coupling two imitate the heater, two imitates the separator of heater tube coupling two, two imitates the separator tube coupling condenser. The method has the advantages that in the original chloroform evaporation vacuum-pumping system, a closed circulating water tank is made for machine seal cooling water of a vacuum pump, a coil is arranged in the circulating water tank, and circulating water in the water tank is cooled by introducing ice water into the coil, so that the purpose of always recycling the cooling water is achieved, and the safety problem of phosgene generation due to visible light decomposition of chloroform is solved.
Description
Technical Field
The utility model relates to an evaporimeter especially relates to a closed evacuation water circle device of chloroform evaporation.
Background
Chloroform, alternative name: chloroform, a colorless transparent liquid, is widely used in the fields of medicine and chemical industry, has special smell, sweet taste, is easy to volatilize, and can react with oxygen in the air when being irradiated by light to gradually decompose and generate virulent phosgene. N-methylpyrrolidone, alternative name: NMP is colorless transparent oily liquid, has low volatility and excellent thermal stability and chemical stability, and can volatilize along with water vapor. The compound is easy to dissolve in water, ethanol, ether, acetone, ethyl acetate, chloroform and benzene, can dissolve most of organic and inorganic compounds, polar gases, natural and synthetic high molecular compounds, and NMP is widely applied to the industries of lithium batteries, medicines, pesticides, pigments, cleaning agents, insulating materials and the like.
The normal-pressure boiling point of chloroform is only 61.3 ℃, the common temperature of cooling water is 30-40 ℃, the temperature difference between the normal-pressure boiling point and the cooling water is large, a large amount of cooling water is needed in the cooling process of the existing chloroform evaporator, the energy consumption in the cooling process is large, the chloroform collecting tank needs to be subjected to vacuum treatment in the cooling process, the chloroform collecting tank is vacuumized by a vacuum pump, the outlet water temperature of the outlet of the vacuum pump can reach 50-60 ℃, if the chloroform is directly discharged, a large amount of waste of water is caused, the chloroform is a low-toxicity product and is volatile, and the chloroform is decomposed by steam and light to.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, a chloroform evaporation closed type vacuumizing water circulation device with lower energy consumption is specially manufactured.
In order to achieve the above object, the present invention provides the following solutions: a chloroform evaporation closed type vacuum pumping water circulation device comprises an evaporator, wherein the evaporator comprises an effect feed pump, a double effect feed pump, a plate heat exchanger, a closed type water circulation device, an effect heater, an effect separator, a double effect heater, a double effect separator, a condenser, a chloroform collecting tank and a variable frequency vacuum pumping pump, the effect feed pump is connected with the effect heater through a pipeline, the effect heater is connected with the effect separator through a pipeline, the effect separator is respectively connected with the double effect feed pump and the condenser through a pipeline, the double effect feed pump is connected with the double effect heater through a pipeline, the double effect separator is connected with the condenser through a pipeline, the condenser is provided with a cooled chloroform outlet and an uncooled chloroform inlet, the cooled chloroform outlet is connected with a chloroform collecting tank through a pipeline, the chloroform collecting tank is provided with a chloroform discharge port, a chloroform feed port and a vacuum pumping port, the chloroform discharge port is, the chloroform discharge pump collects and discharges cooled chloroform, a chloroform feeding port is connected with a cooled chloroform discharge port through a pipeline, the chloroform cooled in the condenser is discharged from the cooled chloroform discharge port and enters a chloroform collection tank through a pipeline, a vacuumizing port is connected with a variable-frequency vacuumizing pump through a pipeline, the variable-frequency vacuumizing pump is provided with an air suction port and an air exhaust port, the air suction port is communicated with the chloroform collection tank, and the air exhaust port is communicated with the closed water circulation device;
the plate heat exchanger is provided with a heat exchange inlet, a heat exchange outlet, a chilled water outlet and a chilled water inlet, the chloroform collecting tank is also provided with a boiling chloroform outlet, the boiling chloroform outlet is arranged at the top of the chloroform collecting tank, the boiling chloroform outlet is connected with the heat exchange inlet on the plate heat exchanger through a pipeline, the heat exchange inlet and the heat exchange outlet are communicated inside the plate heat exchanger, and the heat exchange outlet is connected with the uncooled chloroform inlet on the condenser through a pipeline;
the condenser is also provided with a cooling water inlet and a cooling water outlet, the cooling water inlet is arranged at the bottom of the condenser, and the cooling water outlet is arranged at the top of the condenser.
Furthermore, the variable-frequency vacuum pump comprises a variable-frequency motor and a vacuum pump, wherein the variable-frequency motor drives the vacuum pump and controls the rotation rate of the vacuum pump.
Further, the closed water circulation device comprises a vacuum water tank and a tail gas condensation tank, an exhaust port pipeline of the variable-frequency vacuum pumping pump is connected with the vacuum water tank, a tail gas outlet is formed in the top of the vacuum water tank, a water outlet is formed in the bottom of the vacuum water tank, the tail gas outlet pipeline is connected with the tail gas condensation tank, and the water outlet in the bottom of the vacuum water tank is communicated with the variable-frequency vacuum.
Furthermore, the evaporator is externally connected with a chilled water pipeline, and the chilled water pipeline comprises a first chilled water pipeline branch communicated with the vacuum water tank, a second chilled water pipeline branch communicated with the tail gas condensing tank and a third chilled water pipeline branch communicated with the plate heat exchanger.
Furthermore, a built-in coil pipe is arranged in the vacuum water tank, and the first freezing water pipeline branch enters from one end of the built-in coil pipe and flows out from the other end of the built-in coil pipe to cool the vacuum water tank.
The utility model discloses an useful part lies in:
in an original chloroform evaporation vacuum pumping system, a closed circulating water tank is made for machine seal cooling water of a vacuum pump, a coil is arranged in the circulating water tank, and the circulating water in the water tank is cooled by introducing ice water into the coil, so that the purpose of always recycling the cooling water is achieved, and the safety problem of phosgene generation due to chloroform visible light decomposition is also solved.
Drawings
Fig. 1 is a schematic diagram of the chloroform evaporation closed type vacuum-pumping water circulation device of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
A chloroform evaporation closed type vacuum pumping water circulation device comprises an evaporator, wherein the evaporator comprises an effect feed pump 100, a double effect feed pump 103, a plate heat exchanger 107, a closed type water circulation device, an effect heater 101, an effect separator 102, a double effect heater 104, a double effect separator 105, a condenser 106, a chloroform collecting tank 112 and a variable frequency vacuum pumping pump 109, the effect feed pump is connected with the effect heater through a pipeline, the effect heater is connected with the effect separator through a pipeline, the effect separator is respectively connected with the double effect feed pump and the condenser through a pipeline, the double effect feed pump is connected with the double effect heater through a pipeline, the double effect heater is connected with the double effect separator through a pipeline, the condenser is connected with the condenser through a pipeline, a cooled chloroform outlet and an uncooled chloroform inlet are arranged on the condenser, a cooled chloroform outlet is connected with a chloroform collecting tank through a pipeline, a chloroform discharge hole, a chloroform feeding hole and a vacuum pumping hole are arranged on the chloroform, the chloroform discharge port is connected with a chloroform discharge pump through a pipeline, the cooled chloroform is collected and discharged by the chloroform discharge pump, the chloroform feeding port is connected with a cooled chloroform discharge port through a pipeline, the chloroform cooled in the condenser is discharged from the cooled chloroform discharge port and enters the chloroform collection tank through a pipeline, the vacuumizing port is connected with a variable-frequency vacuumizing pump through a pipeline, the variable-frequency vacuumizing pump is provided with an air pumping port and an air exhaust port, the air pumping port is communicated with the chloroform collection tank, and the air exhaust port is communicated with the closed water circulation device;
the plate heat exchanger is provided with a heat exchange inlet, a heat exchange outlet, a chilled water outlet and a chilled water inlet, the chloroform collecting tank is also provided with a boiling chloroform outlet, the boiling chloroform outlet is arranged at the top of the chloroform collecting tank, the boiling chloroform outlet is connected with the heat exchange inlet on the plate heat exchanger through a pipeline, the heat exchange inlet and the heat exchange outlet are communicated inside the plate heat exchanger, and the heat exchange outlet is connected with the uncooled chloroform inlet on the condenser through a pipeline;
the condenser is also provided with a cooling water inlet and a cooling water outlet, the cooling water inlet is arranged at the bottom of the condenser, and the cooling water outlet is arranged at the top of the condenser. The variable-frequency vacuum pump comprises a variable-frequency motor and a vacuum pump, wherein the variable-frequency motor drives the vacuum pump and controls the rotation speed of the vacuum pump. The closed water circulation device comprises a vacuum water tank 110 and a tail gas condensation tank 111, wherein an exhaust port pipeline of the variable-frequency vacuum pumping pump is connected with the vacuum water tank, the top of the vacuum water tank is a tail gas outlet, the bottom of the vacuum water tank is a water outlet, the tail gas outlet pipeline is connected with the tail gas condensation tank, and the water outlet at the bottom is communicated with the variable-frequency vacuum pump. The external frozen water pipeline of evaporimeter, frozen water pipeline include with the first frozen water pipeline branch of vacuum water pitcher intercommunication, with the second frozen water pipeline branch of tail gas condensate tank intercommunication and with the third frozen water pipeline branch of plate heat exchanger intercommunication. Be equipped with built-in coil pipe in the vacuum water pitcher, the branch of first frozen water pipeline gets into from built-in coil pipe one end, flows out from the other end, cools off the vacuum water pitcher.
The water circulation system of the vacuum system is also closed, the water ring vacuum pump must continuously provide cooling machine sealing water to vacuumize, the water inlet temperature is generally proper at 15-20 ℃, the water outlet temperature of the vacuum pump outlet can reach 50-60 ℃, if direct discharge tends to cause a large amount of waste of water, chloroform is a low-toxicity product and is volatile, and chloroform vapor light is decomposed to generate virulent phosgene, so for safety, a closed circulation water tank is specially made for the machine sealing cooling water of the vacuum pump, a coil is arranged in the circulation water tank, and the circulation water in the water tank is cooled by the circulation water in an ice water pipe, so that the purpose of recycling the cooling water all the time is achieved, and the safety problem that the phosgene is generated by the decomposition of the chloroform light is also solved.
It is obvious to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention, and that the embodiments are therefore to be considered in all respects as exemplary and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (5)
1. The utility model provides a chloroform evaporates closed evacuation water circle device, includes the evaporimeter, its characterized in that: the evaporator comprises a first-effect feeding pump, a second-effect feeding pump, a plate heat exchanger, a closed water circulation device, a first-effect heater, a first-effect separator, a second-effect heater, a second-effect separator, a condenser, a chloroform collecting tank and a variable-frequency vacuum pump, wherein the first-effect feeding pump is connected with the first-effect heater through a pipeline, the first-effect heater is connected with the first-effect separator through a pipeline, the first-effect separator is respectively connected with the second-effect feeding pump and the condenser through a pipeline, the second-effect feeding pump is connected with the second-effect heater through a pipeline, the second-effect separator is connected with the condenser through a pipeline, a cooled chloroform outlet and an uncooled chloroform inlet are arranged on the condenser, the cooled chloroform outlet is connected with the chloroform collecting tank through a pipeline, a chloroform discharge port, a chloroform feeding port and a vacuum, the chloroform inlet is connected with the cooled chloroform outlet by a pipeline, the chloroform cooled in the condenser is discharged from the cooled chloroform outlet and enters the chloroform collecting tank by a pipeline, the vacuumizing port is connected with a variable-frequency vacuumizing pump by a pipeline, the variable-frequency vacuumizing pump is provided with an air pumping port and an air exhaust port, the air pumping port is communicated with the chloroform collecting tank, and the air exhaust port is communicated with the closed water circulating device;
the plate heat exchanger is provided with a heat exchange inlet, a heat exchange outlet, a chilled water outlet and a chilled water inlet, the chloroform collecting tank is also provided with a boiling chloroform outlet, the boiling chloroform outlet is arranged at the top of the chloroform collecting tank, the boiling chloroform outlet is connected with the heat exchange inlet on the plate heat exchanger through a pipeline, the heat exchange inlet and the heat exchange outlet are communicated inside the plate heat exchanger, and the heat exchange outlet is connected with the uncooled chloroform inlet on the condenser through a pipeline;
the condenser is also provided with a cooling water inlet and a cooling water outlet, the cooling water inlet is arranged at the bottom of the condenser, and the cooling water outlet is arranged at the top of the condenser.
2. The chloroform evaporation closed type vacuum-pumping water circulation device as claimed in claim 1, wherein: the variable-frequency vacuum pump comprises a variable-frequency motor and a vacuum pump, wherein the variable-frequency motor drives the vacuum pump and controls the rotation speed of the vacuum pump.
3. The chloroform evaporation closed type vacuum-pumping water circulation device as claimed in claim 2, wherein: the closed water circulation device comprises a vacuum water tank and a tail gas condensing tank, an exhaust port pipeline of the variable-frequency vacuum pumping pump is connected with the vacuum water tank, the top of the vacuum water tank is a tail gas outlet, the bottom of the vacuum water tank is a water outlet, the tail gas outlet pipeline is connected with the tail gas condensing tank, and the water outlet at the bottom is communicated with the variable-frequency vacuum pump.
4. A chloroform evaporation closed type vacuum-pumping water circulation device according to claim 3, characterized in that: the external frozen water pipeline of evaporimeter, frozen water pipeline include with the first frozen water pipeline branch of vacuum water pitcher intercommunication, with the second frozen water pipeline branch of tail gas condensate tank intercommunication and with the third frozen water pipeline branch of plate heat exchanger intercommunication.
5. The chloroform evaporation closed type vacuum-pumping water circulation device as claimed in claim 4, wherein: be equipped with built-in coil pipe in the vacuum water pitcher, the branch of first frozen water pipeline gets into from built-in coil pipe one end, flows out from the other end, cools off the vacuum water pitcher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021121909.XU CN212440091U (en) | 2020-06-17 | 2020-06-17 | Chloroform evaporation closed type vacuum pumping water circulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021121909.XU CN212440091U (en) | 2020-06-17 | 2020-06-17 | Chloroform evaporation closed type vacuum pumping water circulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212440091U true CN212440091U (en) | 2021-02-02 |
Family
ID=74470054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021121909.XU Expired - Fee Related CN212440091U (en) | 2020-06-17 | 2020-06-17 | Chloroform evaporation closed type vacuum pumping water circulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212440091U (en) |
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2020
- 2020-06-17 CN CN202021121909.XU patent/CN212440091U/en not_active Expired - Fee Related
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| 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: 20210202 |