CN214809736U - Vertical flash distillation device and desulfurization slurry waste heat utilization system - Google Patents
Vertical flash distillation device and desulfurization slurry waste heat utilization system Download PDFInfo
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- CN214809736U CN214809736U CN202120237965.8U CN202120237965U CN214809736U CN 214809736 U CN214809736 U CN 214809736U CN 202120237965 U CN202120237965 U CN 202120237965U CN 214809736 U CN214809736 U CN 214809736U
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Abstract
The utility model relates to an environmental protection field, concretely relates to vertical flash distillation device and desulfurization thick liquid waste heat utilization system. In order to solve the problem that the prior art does not have a device capable of utilizing heat in desulfurization slurry, the utility model provides a vertical flash evaporation device, the main body is a flash evaporation tank body, the top of the flash evaporation tank body is provided with a vacuum pumping port, the middle part of the flash evaporation tank body is provided with a slurry feeding port, and the bottom of the flash evaporation tank body is provided with a slurry outlet; in the flash tank body, a washing layer, a demister flushing system, a liquid collecting tank and a spraying layer are sequentially arranged from the slurry feeding port to the upper part. The heat in the desulfurization slurry can be fully utilized, and the heat can be supplied to other applications.
Description
Technical Field
The utility model relates to an environmental protection field, concretely relates to vertical flash distillation device and desulfurization thick liquid waste heat utilization system.
Background
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be taken as an acknowledgement or any form of suggestion that this information constitutes prior art that is already known to a person skilled in the art.
At present, flue gas desulfurization of a thermal power plant is an important way for controlling the emission amount of sulfur dioxide in a coal burning process, and the flue gas desulfurization process has important significance for controlling the emission of the sulfur dioxide by using unique process characteristics.
Common desulfurization techniques are: limestone (lime) wet desulfurization, semidry desulfurization, dry desulfurization and the like. Wet desulphurization is an important desulphurization technology, in which heat is transferred from flue gas to the desulphurized slurry, and the temperature of the desulphurized slurry is stabilized at about 55 ℃ in the operation process. The heat of the part is large, but the prior art does not have a technology for fully utilizing the heat of the part.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem in the prior art, the utility model provides a vertical flash distillation device and desulfurization thick liquid waste heat utilization system uses the flash distillation technique to utilize the waste heat of desulfurization thick liquid, supplies other places to use.
The utility model provides a vertical flash evaporation device, the main body is a flash evaporation tank body, the top of the flash evaporation tank body is provided with a vacuum pumping port, the middle part of the flash evaporation tank body is provided with a slurry feeding port, and the bottom of the flash evaporation tank body is provided with a slurry outlet;
in the flash tank body, a washing layer, a demister flushing system, a liquid collecting tank and a spraying layer are sequentially arranged from the slurry feeding port to the upper part.
The utility model provides a system for utilizing the residual heat of the desulfurized slurry, which comprises the vertical flash evaporation device;
the liquid collecting tank is connected with a water source heat pump system.
The utility model discloses one or more embodiments have following beneficial effect:
1) vertical flash distillation device, adopt the principle that the boiling point is different under different pressure of material, heat in the utilization desulfurization thick liquid that can be ingenious.
2) Vertical flash distillation device, through the design of evacuation mouth, the pressure of steerable flash tank body keeps the vacuum of flash tank body.
3) Vertical flash distillation plant, the design of thick liquid export can make the thick liquid flow more thoroughly in flash tank body bottom, prevents that the desulfurization thick liquid from piling up at the tank bottoms.
4) Vertical flash distillation plant, evacuation mouth, washing layer, defroster wash water system, the cooperation design that sprays layer, thermal-arrest groove can make the desulfurization thick liquid be formed with the hot water of temperature, be convenient for follow-up thermal reuse of carrying on.
5) Vertical flash distillation device, can solve because of the high easy sedimentary problem of desulfurization thick liquid solid content.
6) Vertical flash distillation plant, changed the traditional process that needs the heat pump to pressurize and heat up flash steam, solved flash steam and the more troublesome problem of outer antithetical couplet heat pump interconnect.
7) Vertical flash distillation device, cooperation flash distillation technique, waste heat in the usable desulfurization thick liquid is used for providing heat externally, reduces the desulfurization thick liquid temperature, improves the desulfurization efficiency of desulfurization thick liquid simultaneously.
8) Desulfurization thick liquid waste heat utilization system, can carry out make full use of the hot water that desulfurization thick liquid produced in vertical flash distillation device.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a schematic structural diagram of a neutral flash distillation apparatus in embodiment 1 of the present invention.
Wherein: 1. the system comprises a slurry outlet, a flash tank body 2, a slurry feeding hole 3, a washing layer 4, a plate-type demister 5, a demister washing water 6, a liquid collecting tank 7, a spraying layer 8, a spraying layer 9 and a vacuumizing hole.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that when the term "comprising" is used in the present invention, it indicates the presence of the feature, device, component and/or combination thereof.
It is to be understood that the terms "upper", "lower", "top", "bottom", and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
In the conventional apparatuses, there is no apparatus or system capable of utilizing the heat of the desulfurization slurry.
In order to solve the problems, the utility model provides a vertical flash distillation device and desulfurization thick liquid waste heat utilization system uses the flash distillation technique to utilize the waste heat of desulfurization thick liquid, supplies other places to use.
The utility model provides a vertical flash evaporation device, the main body is a flash evaporation tank body, the top of the flash evaporation tank body is provided with a vacuum pumping port, the middle part of the flash evaporation tank body is provided with a slurry feeding port, and the bottom of the flash evaporation tank body is provided with a slurry outlet;
in the flash tank body, a washing layer, a demister flushing system, a liquid collecting tank and a spraying layer are sequentially arranged from the slurry feeding port to the upper part.
The design of the washing layer can screen out impurity particles carried in gas after the gas-liquid separation of the desulfurized slurry. The design of the demister can screen out fine liquid drops carried by gas after gas-liquid separation of the desulfurized slurry. The demister flushing water system is used for removing the slurry retained on the demister, keeping the demister clean and maintaining the efficiency of removing slurry liquid drops by the demister.
In some embodiments, the scrubbing layer is a water curtain scrubbing layer.
In some embodiments, the scrubbing layer is a screen.
In some implementations, the spray layer is a spray heat sink layer.
In some embodiments, the demister is a plate demister.
In some embodiments, a gap is left between the liquid collecting tank and the flash tank body. The design can facilitate the upward flow of the steam separated from the gas and the liquid of the desulfurized slurry.
In some embodiments, the heat absorbing spray layer is matched with the shape of the liquid collecting tank. This design can guarantee that the hydroenergy that sprays out on the layer of spraying can get into the catch basin, prevents the waste of water resource.
In some embodiments, the slurry outlet is connected to the spray layer through a circulation system. The design can make full use of the liquid separated from the gas and the liquid of the desulfurization slurry, and ensure the full utilization of resources.
In some embodiments, a filtration device is disposed in the circulation system. The design of the filtering device can ensure that water entering the liquid collecting tank is clean.
In some embodiments, the evacuation port is connected to an evacuation device. The vacuum-pumping device may be a vacuum pump.
In some embodiments, the flash tank body bottom is an inverted cone. The slurry outlet is designed at the conical tip of the flash tank, so that the desulfurized slurry can flow out more completely.
In some embodiments, a support frame is arranged at the bottom of the flash tank body. The design of support frame, with the awl point cooperation of thick liquid export at the flash tank, can be convenient for break away from the outflow of thick liquid.
In some embodiments, the spray layer is designed to be conical from the upper part to the top of the flash tank body, and the vacuum pumping port is designed to be conical.
The utility model provides a system for utilizing the residual heat of the desulfurized slurry, which comprises the vertical flash evaporation device;
the liquid collecting tank is connected with a water source heat pump system.
In some embodiments, the slurry feed port is connected to a pressure reducing device, which may be a pressure reducing valve or the like.
The desulfurization slurry passes through a pressure reducing device (such as a pressure reducing valve) and enters a vertical flash evaporation device after being subjected to pressure reduction, so that the device impact caused by the great pressure difference after entering the flash evaporation device can be prevented.
Example 1
Referring to fig. 1, a vertical flash evaporation device for utilizing the waste heat of desulfurized slurry comprises a slurry outlet 1, a slurry outlet 2, a flash evaporation tank body 3, a slurry feeding port 4, a washing layer 5, a plate-type demister 6, a demister flushing water system 7, a liquid collecting tank 8, a spraying layer 9 and a vacuum pumping port;
the main body is a flash tank body 2, a vacuum pumping port 9 is arranged at the top of the flash tank body 2, a slurry feeding port 3 is arranged in the middle of the flash tank body 2, and a slurry outlet 1 is arranged at the bottom of the flash tank body 2;
in the flash tank body 2, a washing layer 4, a demister 6, a demister washing water system 6, a liquid collecting tank 7 and a spraying layer 8 are sequentially arranged from the slurry feed port 3 to the upper part.
And (3) enabling the desulfurization slurry at the temperature of 50-55 ℃ to enter the flash tank body 2 from the slurry feeding hole 3, keeping the vacuum degree of-0.095 MPa in the flash tank body 2, and instantly evaporating the desulfurization slurry after the desulfurization slurry enters the flash tank to achieve the effect of gas-liquid separation. The steam moves upwards, and the desulfurization slurry falls to the slurry outlet 1 and is conveyed to the uppermost spraying layer of the desulfurization system by a pump.
The steam after the evaporation is washed by the washing layer 4, the particulate matters carried by the steam are removed preliminarily, and then the steam enters the demister 5 to remove the carried fine liquid drops, so that clean steam is obtained. The demister washing water system 6 is in indirect operation and is opened when the pressure difference of the demister is large. The clean vapor moves upwards through the liquid collecting tank 7 to exchange heat with the water sprayed by the spraying layer 8, the clean vapor absorbs the heat by the sprayed water to form hot water with temperature, and the hot water is discharged to the water source type heat pump system after being gathered in the liquid collecting tank 7 to be used for heat utilization.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.
Claims (10)
1. A vertical flash evaporation device is characterized in that a main body is a flash evaporation tank body, a vacuum pumping port is arranged at the top of the flash evaporation tank body, a slurry feeding port is arranged in the middle of the flash evaporation tank body, and a slurry outlet is arranged at the bottom of the flash evaporation tank body;
in the flash tank body, a washing layer, a demister flushing system, a liquid collecting tank and a spraying layer are sequentially arranged from the slurry feeding port to the upper part.
2. The vertical flash apparatus of claim 1 wherein the demister is a plate demister.
3. A vertical flash apparatus according to claim 1 wherein a gap is provided between the sump and the periphery of the flash tank body.
4. The vertical flash apparatus of claim 1 wherein the spray level is form-fit to the sump.
5. The vertical flash apparatus of claim 1 wherein the slurry outlet is connected to the spray layer by a circulation system.
6. A vertical flash apparatus according to claim 5 wherein the circulation system is provided with filtration means.
7. The vertical flash apparatus of claim 1 wherein the vacuum port is connected to a vacuum pump.
8. The vertical flash apparatus as claimed in claim 1 wherein the bottom of the flash tank body is inverted cone shaped.
9. The vertical flash apparatus as claimed in claim 1, wherein a support frame is provided at the bottom of the flash tank body.
10. A desulfurization slurry waste heat utilization system, which is characterized by comprising a vertical flash evaporation device according to any one of claims 1 to 9;
the liquid collecting tank is connected with a water source heat pump system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120237965.8U CN214809736U (en) | 2021-01-27 | 2021-01-27 | Vertical flash distillation device and desulfurization slurry waste heat utilization system |
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| CN202120237965.8U CN214809736U (en) | 2021-01-27 | 2021-01-27 | Vertical flash distillation device and desulfurization slurry waste heat utilization system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114014402A (en) * | 2021-11-30 | 2022-02-08 | 华能营口热电有限责任公司 | Vertical-layout desulfurization slurry flash evaporation heat extraction system and working method thereof |
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2021
- 2021-01-27 CN CN202120237965.8U patent/CN214809736U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114014402A (en) * | 2021-11-30 | 2022-02-08 | 华能营口热电有限责任公司 | Vertical-layout desulfurization slurry flash evaporation heat extraction system and working method thereof |
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