CN212440090U - High-efficient triple-effect countercurrent evaporation device - Google Patents
High-efficient triple-effect countercurrent evaporation device Download PDFInfo
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- CN212440090U CN212440090U CN202021116376.6U CN202021116376U CN212440090U CN 212440090 U CN212440090 U CN 212440090U CN 202021116376 U CN202021116376 U CN 202021116376U CN 212440090 U CN212440090 U CN 212440090U
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- 238000001704 evaporation Methods 0.000 title claims abstract description 63
- 230000008020 evaporation Effects 0.000 title claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000000926 separation method Methods 0.000 claims abstract description 23
- 239000011550 stock solution Substances 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 25
- 230000000694 effects Effects 0.000 claims description 21
- 230000001276 controlling effect Effects 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000009290 primary effect Effects 0.000 claims description 3
- 230000009291 secondary effect Effects 0.000 claims description 3
- 238000003303 reheating Methods 0.000 claims description 2
- 239000000945 filler Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
The invention discloses a high-efficiency triple-effect countercurrent evaporation device, which comprises a triple-effect countercurrent evaporation device, a condenser, a discharge pump, a condensed water tank and a stock solution feeding tank, and has the beneficial effects that: the volatile gas is condensed and reflows through a partial condenser filled with cooling circulating water, so that the volatile gas is prevented from entering a shell of a next-effect heater to influence heat exchange, and a large amount of water vapor is ensured to enter the shell of the next-effect heater to exchange heat; a partial condenser and a filler are additionally arranged at the top of the evaporation separation device to carry out high-efficiency concentration on the stock solution.
Description
Technical Field
The invention relates to the field of evaporation equipment, in particular to a high-efficiency triple-effect countercurrent evaporation device.
Background
The three-effect countercurrent evaporator is a common evaporation device, and the evaporation principle of the device is that steam is used for heating a first effect, secondary steam generated by the first effect is used for heating a second effect, the secondary steam generated by the second effect is used for heating a third effect, and the secondary steam generated by the third effect enters a condenser for condensation. If the components evaporated in the raw materials not only have water but also other volatile gas components, the commonly used triple-effect evaporation equipment can evaporate the water and the volatile gas together, the water and the volatile gas are condensed together to be directly discharged, and if the volatile gas is too much, the heat exchange effect of the evaporation equipment can be influenced.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides a high-efficiency three-effect countercurrent evaporation device.
In order to achieve the purpose, the invention adopts the following technical scheme: a high-efficiency triple-effect countercurrent evaporation device comprises a triple-effect countercurrent evaporation device, a condenser, a discharge pump, a condensed water tank and a stock solution feeding tank, wherein the triple-effect countercurrent evaporation device comprises a primary-effect evaporation separation device, a secondary-effect evaporation separation device and a triple-effect evaporation separation device which are sequentially connected;
the first-effect evaporation separation device comprises a first-effect heater, a first-effect separator, a first-effect dephlegmator and a first-effect feed pump, wherein an air inlet of a shell of the first-effect heater is communicated with a raw steam pipeline, an upper circulating pipeline of the first-effect heater is communicated with an inlet of a circulating pipeline of the first-effect separator, a discharge port of the first-effect separator is communicated with an inlet of the first-effect heater through the circulating pipeline provided with a forced circulating pump, the top of the first-effect separator is communicated with the first-effect dephlegmator, the first-effect dephlegmator is provided with a first heat medium outlet communicated with an air inlet of the second-effect heater, the discharge pump is respectively communicated with the bottom of the first-effect separator and the circulating pipeline, the circulating pipeline is also connected with the first-effect feed pump for increasing fillers;
the two-effect evaporation separation device comprises a two-effect heater, a two-effect separator, a two-effect dephlegmator, a two-effect feed pump and a two-effect circulating pump, wherein a lower circulating nozzle of the two-effect heater is communicated with an inlet of a circulating pipeline of the two-effect separator, a discharge port of the two-effect separator is communicated with a feed inlet of the two-effect heater through the two-effect circulating pump, the top of the two-effect separator is communicated with the two-effect dephlegmator, a second heat medium outlet communicated with an air inlet of the three-effect heater is arranged on the two-effect dephlegmator, and concentrated liquid at the bottoms of the three-effect heater and the three-effect;
the triple-effect evaporation separation device comprises a triple-effect heater, a triple-effect separator, a triple-effect dephlegmator and a triple-effect circulating pump, wherein a lower circulating nozzle of the triple-effect heater is communicated with an inlet of a circulating pipeline of the triple-effect separator, a discharge hole of the triple-effect separator is communicated with a feed inlet of the triple-effect heater through the triple-effect circulating pump, the top of the triple-effect separator is communicated with the triple-effect dephlegmator, a third heat medium outlet communicated with a tube pass inlet of the condenser is arranged on the triple-effect dephlegmator, and a stock solution in a stock solution feed tank is pumped into the feed;
the outlet of the condenser tube pass is communicated with a condensed water tank connected with a water ring vacuum pump, and the bottom of the condensed water tank is connected with a condensed water pump used for pumping out condensed water.
Preferably, the feed inlet of the first-effect heater is positioned at the bottom of the first-effect heater, the upper circulating pipeline of the first-effect heater is positioned at the top of the first-effect heater, the feed inlet of the second-effect heater is positioned at the top of the second-effect heater, the lower circulating nozzle of the second-effect heater is positioned at the bottom of the second-effect heater, the feed inlet of the third-effect heater is positioned at the top of the third-effect heater, and the lower circulating nozzle of the third-effect heater.
Preferably, control valves are arranged between the discharge pump and the bottom of the first-effect separator and the circulating pipeline, between the first-effect feed pump and the second-effect heater and the second-effect separator, between the second-effect feed pump and the third-effect heater and the third-effect separator, between the second-effect circulating pump and the second-effect separator and the second-effect heater, and between the third-effect circulating pump and the third-effect separator and the third-effect heater.
Preferably, be equipped with one and imitate pneumatic ball valve between one and imitate the charge pump and the circulating line, be equipped with on the one-imitate level sensor that is used for interlock control one to imitate pneumatic ball valve switch and one to imitate the charge pump to open and stop on the separator, be equipped with two-imitate pneumatic ball valve between two-imitate charge pump and two-imitate the heater, be equipped with on the two-imitate separator and be used for interlock control two-imitate pneumatic ball valve switch and two-imitate the two-imitate level sensor that the charge pump opened and stop, be equipped with three-imitate pneumatic ball valve between three-imitate charge pump and the three-imitate separator, be equipped with the three-imitate level sensor that is used for interlock control three-imitate pneumatic ball valve switch and three-imitate charge pump to open and stop on the three-imitate charge pump on the.
Preferably, the first-effect liquid level sensor, the second-effect liquid level sensor, the third-effect liquid level sensor and the condensate tank liquid level sensor are all differential pressure type liquid level sensors.
Preferably, a steam regulating valve is arranged on the steam generating pipeline, and a temperature sensor for controlling the opening of the steam regulating valve is arranged in the single-effect separator.
Preferably, the triple-effect countercurrent evaporation device is further provided with a non-condensable gas pipeline, the tops of the first-effect partial condenser, the second-effect partial condenser and the triple-effect partial condenser are respectively provided with a non-condensable gas pipeline inlet, and the lower part of the triple-effect heater is provided with a non-condensable gas pipeline outlet for conveying non-condensable gas to heat again.
Preferably, cooling circulating water is filled in the first-effect partial condenser, the second-effect partial condenser and the third-effect partial condenser, a cooling circulating water outlet is formed in the top of the partial condenser, and cooling circulating water inlets are formed above the first heat medium outlet, the second heat medium outlet and the third heat medium outlet.
The invention has the beneficial effects that: the volatile gas is condensed and reflows through a partial condenser filled with cooling circulating water, so that the volatile gas is prevented from entering a shell of a next-effect heater to influence heat exchange, and a large amount of water vapor is ensured to enter the shell of the next-effect heater to exchange heat;
a partial condenser and a filler are additionally arranged at the top of the evaporation separation device to carry out high-efficiency concentration on the stock solution.
Drawings
FIG. 1 is a schematic diagram of a high efficiency triple effect counter current evaporator.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
With reference to the attached drawing 1, a high-efficiency triple-effect countercurrent evaporation device comprises a triple-effect countercurrent evaporation device, a condenser 4, a discharge pump 7, a condensed water tank 5 and a stock solution feeding tank 6, wherein the triple-effect countercurrent evaporation device comprises a primary-effect evaporation separation device, a secondary-effect evaporation separation device and a triple-effect evaporation separation device which are sequentially connected;
the first-effect evaporation separation device comprises a first-effect heater 103, a first-effect separator 101, a first-effect dephlegmator 102 and a first-effect feed pump 104, wherein an air inlet of a shell of the first-effect heater is communicated with a raw steam pipeline, an upper circulating pipeline of the first-effect heater is communicated with an inlet of a circulating pipeline of the first-effect separator, a discharge port of the first-effect separator is communicated with an inlet of the first-effect heater through the circulating pipeline provided with a forced circulating pump, the top of the first-effect separator is communicated with the first-effect dephlegmator, the first-effect dephlegmator is provided with a first heat medium outlet communicated with an air inlet of the second-effect heater, the discharge pump is respectively communicated with the bottom of the first-effect separator and the circulating pipeline, the circulating pipeline is also connected with the first-effect feed pump for increasing fillers;
the two-effect evaporation separation device comprises a two-effect heater 203, a two-effect separator 201, a two-effect dephlegmator 202, a two-effect feed pump 204 and a two-effect circulating pump 205, a lower circulating nozzle of the two-effect heater is communicated with an inlet of a circulating pipeline of the two-effect separator, a discharge port of the two-effect separator is communicated with a feed inlet of the two-effect heater through the two-effect circulating pump, the top of the two-effect separator is communicated with the two-effect dephlegmator, a second heat medium outlet communicated with an air inlet of the three-effect heater is arranged on the two-effect dephlegmator, and concentrated liquid at the bottoms of the three-effect heater and the three-effect separator;
the triple-effect evaporation separation device comprises a triple-effect heater 303, a triple-effect separator 301, a triple-effect dephlegmator 302 and a triple-effect circulating pump 305, wherein a lower circulating nozzle of the triple-effect heater is communicated with an inlet of a circulating pipeline of the triple-effect separator, a discharge hole of the triple-effect separator is communicated with a feed inlet of the triple-effect heater through the triple-effect circulating pump, the top of the triple-effect separator is communicated with the triple-effect dephlegmator, a third heat medium outlet communicated with a tube pass inlet of the condenser is arranged on the triple-effect dephlegmator, and a stock solution in a stock solution feed tank is pumped into the feed inlet;
the outlet of the condenser tube side is communicated with a condensed water tank connected with a water ring vacuum pump 502, and the bottom of the condensed water tank is connected with a condensed water pump 501 for pumping out condensed water.
A high-efficiency triple-effect countercurrent evaporation device is characterized in that a feed inlet of a first-effect heater is located at the bottom of the first-effect heater, an upper circulating pipeline of the first-effect heater is located at the top of the first-effect heater, a feed inlet of a second-effect heater is located at the top of the second-effect heater, a lower circulating nozzle of the second-effect heater is located at the bottom of the second-effect heater, a feed inlet of the triple-effect heater is located at the top of the triple-effect heater, and a lower circulating nozzle.
Furthermore, the bottoms of the first-effect heater, the second-effect heater and the third-effect heater are all connected with a drain valve used for draining condensed water.
A high-efficiency triple-effect countercurrent evaporation device is characterized in that control valves are arranged between a discharge pump and the bottom of a first-effect separator and a circulating pipeline, between a first-effect feed pump and a second-effect heater and a second-effect separator, between a second-effect feed pump and a triple-effect heater and a triple-effect separator, between a second-effect circulating pump and a second-effect separator and a second-effect heater, and between a triple-effect circulating pump and a triple-effect separator and a triple-effect heater.
The utility model provides a high-efficient triple-effect is evaporation plant against current, it imitates pneumatic ball valve to be equipped with one between a feed pump and the circulating line to imitate, be equipped with on the first separator of imitating and be used for interlock control one to imitate pneumatic ball valve switch and one to imitate a feed pump and open and stop one and imitate level sensor, be equipped with two between two imitate feed pump and two imitate the heater and imitate pneumatic ball valve, be equipped with on the two imitate the separator and be used for interlock control two to imitate pneumatic ball valve switch and two imitate two liquid level sensor that feed pump opened and stop, be equipped with three imitate pneumatic ball valve between three imitate feed pump and the triple-effect separator, be equipped with on the triple-effect level sensor that is used for interlock control three-effect pneumatic ball valve switch and three-imitate feed pump to open and stop on the triple-effect separator, be. The first-effect liquid level sensor controls a first-effect pneumatic ball valve switch, and the parallel lock controls the start and stop of a first-effect feeding pump and the high stop and low start; the double-effect liquid level sensor controls a double-effect pneumatic ball valve switch, and the parallel lock controls the start and stop, high stop and low start of the double-effect feeding pump; the three-effect liquid level sensor controls the three-effect pneumatic ball valve to be switched on and off, and the parallel lock controls the feed pump to be started, stopped and opened at high and low positions; the level of the condensate water tank controls the start and stop of the condensate water outlet pneumatic ball valve and the condensate water pump.
A high-efficiency triple-effect countercurrent evaporation device is characterized in that a first-effect liquid level sensor, a second-effect liquid level sensor, a triple-effect liquid level sensor and a condensate water tank liquid level sensor are all differential pressure type liquid level sensors.
A high-efficiency triple-effect countercurrent evaporation device is characterized in that a steam regulating valve is arranged on a raw steam pipeline, and a temperature sensor for controlling the opening degree of the steam regulating valve is arranged in a single-effect separator.
The utility model provides a high-efficient triple-effect is evaporation plant against current still is equipped with noncondensable gas pipeline on the triple-effect is evaporation plant against current, and one effect dephlegmator, two effect dephlegmator and three effect dephlegmator top all are equipped with noncondensable gas pipeline import, and open the triple-effect heater lower part has the noncondensable gas pipeline export that is used for carrying noncondensable gas to carry out reheating.
A high-efficiency three-effect countercurrent evaporation device is characterized in that cooling circulating water is communicated in a first-effect dephlegmator, a second-effect dephlegmator and a third-effect dephlegmator, a cooling circulating water outlet is formed in the top of the dephlegmator, and cooling circulating water inlets are formed above a first heat medium outlet, a second heat medium outlet and a third heat medium outlet.
The working process of the utility model is that firstly, the stock solution in the stock solution feed tank is pumped into the feed inlet of the triple-effect heater through the feed pump, the triple-effect heater is heated circularly under the action of the triple-effect circulating pump, and simultaneously the secondary gas generated by the double-effect evaporation separation device is introduced into the triple-effect heater through the air inlet of the triple-effect heater to evaporate the stock solution. Condensing secondary gas generated by the triple-effect separated gas through a condenser, and pumping condensed non-condensable gas away by a water ring vacuum pump;
pumping the concentrated solution after triple effect evaporation into a feed inlet of a double effect heater through a double effect feed pump, performing circulating heating under the action of a double effect circulating pump, and introducing secondary gas generated by a single effect evaporation separation device into the double effect heater to heat and evaporate the material;
pumping the concentrated solution subjected to the two-effect evaporation into a circulating pipeline through a one-effect feeding pump, performing circulating heating under the action of a forced circulating pump, and introducing raw steam into a one-effect heater to perform heating evaporation on the material;
discharging the concentrated solution subjected to the first-effect evaporation through a discharge pump;
the secondary gas generated by each effect evaporation separation device is treated by a dephlegmator, volatile gas in the secondary gas is condensed and flows back by cooling water at the top, and non-condensable gas in the secondary gas is conveyed to the bottom of the triple-effect heater through a non-condensable gas pipeline for circular heating, so that a large amount of water vapor is ensured to enter the heater shell through each heat medium outlet below the cooling water outlet for heat exchange.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A high-efficiency triple-effect countercurrent evaporation device comprises a triple-effect countercurrent evaporation device, a condenser, a discharge pump, a condensed water tank and a stock solution feeding tank, and is characterized in that the triple-effect countercurrent evaporation device comprises a primary-effect evaporation separation device, a secondary-effect evaporation separation device and a triple-effect evaporation separation device which are sequentially connected;
the first-effect evaporation separation device comprises a first-effect heater, a first-effect separator, a first-effect dephlegmator and a first-effect feed pump, wherein an air inlet of a shell of the first-effect heater is communicated with a raw steam pipeline, an upper circulating pipeline of the first-effect heater is communicated with an inlet of a circulating pipeline of the first-effect separator, a circulating pipeline communicated with a lower circulating inlet of the heater through a forced circulating pump is connected below the first-effect separator, a discharge port is formed in the bottom end of the circulating pipeline and communicated with a discharge pump, the top of the first-effect separator is communicated with the first-effect dephlegmator, a first heat medium outlet communicated with an air inlet of the second-effect heater is formed in the first-effect dephlegmator, the discharge pump is respectively communicated with the bottom of the first-effect separator and the circulating pipeline, the first-effect feed pump for increasing adding materials is further connected;
the two-effect evaporation separation device comprises a two-effect heater, a two-effect separator, a two-effect dephlegmator, a two-effect feed pump and a two-effect circulating pump, wherein a lower circulating nozzle of the two-effect heater is communicated with an inlet of a circulating pipeline of the two-effect separator, a discharge port of the two-effect separator is communicated with a feed inlet of the two-effect heater through the two-effect circulating pump, the top of the two-effect separator is communicated with the two-effect dephlegmator, a second heat medium outlet communicated with an air inlet of the three-effect heater is arranged on the two-effect dephlegmator, and concentrated liquid at the bottoms of the three-effect heater and the three-effect;
the triple-effect evaporation separation device comprises a triple-effect heater, a triple-effect separator, a triple-effect dephlegmator and a triple-effect circulating pump, wherein a lower circulating nozzle of the triple-effect heater is communicated with an inlet of a circulating pipeline of the triple-effect separator, a discharge hole of the triple-effect separator is communicated with a feed inlet of the triple-effect heater through the triple-effect circulating pump, the top of the triple-effect separator is communicated with the triple-effect dephlegmator, a third heat medium outlet communicated with a tube pass inlet of the condenser is arranged on the triple-effect dephlegmator, and a stock solution in a stock solution feed tank is pumped into the feed;
the outlet of the condenser tube pass is communicated with a condensed water tank connected with a water ring vacuum pump, and the bottom of the condensed water tank is connected with a condensed water pump used for pumping out condensed water.
2. The high-efficiency three-effect countercurrent evaporation device according to claim 1, wherein the feed inlet of the first-effect heater is located at the bottom of the first-effect heater, the upper circulation pipeline of the first-effect heater is located at the top of the first-effect heater, the feed inlet of the second-effect heater is located at the top of the second-effect heater, the lower circulation nozzle of the second-effect heater is located at the bottom of the second-effect heater, the feed inlet of the third-effect heater is located at the top of the third-effect heater, and the lower circulation nozzle of the third-effect heater is located.
3. The efficient three-effect countercurrent evaporation device according to claim 1, wherein control valves are arranged between the discharge pump and the bottom of the one-effect separator and the circulation pipeline, between the one-effect feed pump and the two-effect heater and the two-effect separator, between the two-effect feed pump and the three-effect heater and the three-effect separator, between the two-effect circulating pump and the two-effect separator and the two-effect heater, and between the three-effect circulating pump and the three-effect separator and the three-effect heater.
4. The high-efficiency three-effect countercurrent evaporation device according to claim 1, wherein a first-effect pneumatic ball valve is arranged between the first-effect feed pump and the circulation pipeline, a first-effect liquid level sensor for controlling the on/off of the first-effect pneumatic ball valve switch and the first-effect feed pump in an interlocking manner is arranged on the first-effect separator, a second-effect pneumatic ball valve is arranged between the second-effect feed pump and the second-effect heater, a second-effect liquid level sensor for controlling the on/off of the second-effect pneumatic ball valve switch and the second-effect feed pump in an interlocking manner is arranged on the second-effect separator, a third-effect pneumatic ball valve is arranged between the third-effect feed pump and the third-effect separator, a third-effect liquid level sensor for controlling the on/off of the third-effect pneumatic ball valve switch and the third-effect feed pump in an interlocking manner is arranged on the third-effect separator, a condensation pneumatic ball valve is arranged between the condensation water tank.
5. The high-efficiency three-effect countercurrent evaporation device according to claim 4, characterized in that the one-effect liquid level sensor, the two-effect liquid level sensor, the three-effect liquid level sensor and the condensate tank liquid level sensor are all differential pressure type liquid level sensors.
6. The high efficiency three-effect countercurrent evaporation device of claim 1, wherein the raw steam pipeline is provided with a steam regulating valve, and the single-effect separator is provided with a temperature sensor for controlling the opening degree of the steam regulating valve.
7. The high-efficiency three-effect countercurrent evaporation device according to claim 1, wherein the three-effect countercurrent evaporation device is further provided with a noncondensable gas pipeline, the tops of the first partial condenser, the second partial condenser and the three-effect partial condenser are provided with noncondensable gas pipeline inlets, and the lower part of the three-effect heater is provided with a noncondensable gas pipeline outlet for conveying the noncondensable gas for reheating.
8. The high efficiency three-effect counter current evaporator according to claim 1, wherein the inside of the first effect partial condenser, the second effect partial condenser and the third effect partial condenser is filled with cooling circulation water, the top of the partial condenser is provided with a cooling circulation water outlet, and a cooling circulation water inlet is arranged above the first heat medium outlet, the second heat medium outlet and the third heat medium outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021116376.6U CN212440090U (en) | 2020-06-16 | 2020-06-16 | High-efficient triple-effect countercurrent evaporation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021116376.6U CN212440090U (en) | 2020-06-16 | 2020-06-16 | High-efficient triple-effect countercurrent evaporation device |
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| Publication Number | Publication Date |
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| CN212440090U true CN212440090U (en) | 2021-02-02 |
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|---|---|---|---|
| CN202021116376.6U Expired - Fee Related CN212440090U (en) | 2020-06-16 | 2020-06-16 | High-efficient triple-effect countercurrent evaporation device |
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| Country | Link |
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| CN (1) | CN212440090U (en) |
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Granted publication date: 20210202 |