CN202089795U - Novel flashing and dehumidifying combination device - Google Patents

Novel flashing and dehumidifying combination device Download PDF

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Publication number
CN202089795U
CN202089795U CN201120159261XU CN201120159261U CN202089795U CN 202089795 U CN202089795 U CN 202089795U CN 201120159261X U CN201120159261X U CN 201120159261XU CN 201120159261 U CN201120159261 U CN 201120159261U CN 202089795 U CN202089795 U CN 202089795U
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China
Prior art keywords
dehumidifier
dehumidification
water inlet
flash distillation
outlet
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Expired - Lifetime
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CN201120159261XU
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Chinese (zh)
Inventor
丁海荣
王庆芬
李圣君
张宗飞
汪刚
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TIANJIN SHENGYUAN ENVIRONMENT CO Ltd
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Individual
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  • Separating Particles In Gases By Inertia (AREA)

Abstract

The utility model discloses a novel flashing and dehumidifying combination device which comprises a flash evaporator and a dehumidifier. A grey water inlet is connected at the middle part of the flash evaporator; a driving outlet is arranged at the most bottom of the flash evaporator; a liquid outlet after flash evaporation is arranged at the upper part of the driving outlet; a working water feeding port is arranged at the middle-upper part of the driving outlet; the top part outlet is connected with the lower part of the dehumidifier through a pipe; a waste gas outlet is arranged at the top part of the dehumidifier; a driving water feeding inlet is arranged at the upper part of the dehumidifier; a deoxygenated water inlet is arranged at the upper part or the middle part of the dehumidifier; an upper feeding port and a circulating pump of the flash evaporator are connected with a discharging port at the bottom of the dehumidifier; and the circulating pump is communicated with the grey water inlet. The novel flashing and dehumidifying combination device can effectively purify and recycle the grey water, has low equipment investment cost, is simple and convenient to operate and is mainly applied to grey water treatment process of powdered coal pressurization gasification and water-coal-slurry pressurization gasification.

Description

A kind of novel flash distillation dehumidification machinery
Technical field
The utility model belongs to Coal Chemical Industry vapourizing furnace grey water handing and recycle utilization field, particularly a kind of high pressure high density gassiness grey water handing machine recycle device.
Background technology
Coal gasification and then acquisition clean fuel or other elementary Chemicals have broad prospects in China, and for reaching the target of energy-saving and emission-reduction, the buck that vapourizing furnace produces needs recycle.
In the middle of the application of Coal Chemical Industry, the high pressure high density gassiness buck of generation generally is that the mode of using Quench is handled, but this technological equipment investment is big, the Operation and Maintenance difficulty.
The utility model content
The purpose of this utility model is in order to address the above problem, to provide a kind of effectively falling to purify recycling backwater and cost novel flash distillation dehumidification machinery low, easy and simple to handle.
In order to achieve the above object, the technical scheme that the utility model provides is: a kind of novel flash distillation dehumidification machinery has flasher and dehumidifier; The middle part of flasher connects grey water inlet, and bottommost is provided with the outlet of driving, and the outlet top of driving is provided with exit from do, and the middle and upper part is provided with connection work admission port, and top exit connects the bottom of dehumidifier by pipeline; The dehumidifier top is provided with waste gas outlet, and top is provided with and connects the driving feed-water inlet, and the middle part is provided with the de-oxygenised water import, and the bottom relief outlet connects the top and the recycle pump of flasher; Recycle pump is communicated with grey water inlet;
The flasher top exit connects the bottom of dehumidifier by Venturi tube;
Be provided with reducing valve and orifice plate current limliting composition element device before the ash water inlet;
Ash faces grey water inlet in the water inlet and is provided with to pottery or is the wear-resistant device of steel plate;
Also be provided with sieve tray, gas cyclone device and traverse baffle demister in the flasher; Sieve tray, gas cyclone device and traverse baffle demister are arranged successively from top to bottom; The traverse baffle demister is arranged on the top of grey water inlet; The work admission port is arranged between the affiliated sieve tray and gas swirl-flow devices, or is arranged on the top of sieve tray; The upper surface of sieve tray to the distance at flasher top much larger than the distance between sieve tray and the gas swirl-flow devices;
Also be provided with multithread road tower tray in the dehumidifier; The quantity of multithread road tower tray is more than or equal to one, the transversal inside that is arranged on dehumidifier;
The multithread road to the quantity of the downtake of tower tray more than or equal to 2;
The top of dehumidifier also is provided with wire mesh demister;
This novel flash distillation dehumidification machinery is mainly used in the middle of the first step flash distillation of grey water handing operation of powdered coal pressuring gasified and water coal slurry pressure gasification.
When the utility model uses, the high pressure (pressure range 25bar-90bar) that comes from the upstream contains ash, (120 degree-300 degree) enter and carry out flash distillation the flash tank to contain the high temperature buck of gas, enter dehumidifier by Venturi tube and carry out dehumidification, waste gas is discharged, the water major part that purifies is dodged by recycle pump and is got back to grey water inlet dilution buck, and small portion is got back to flasher and done the usefulness of cleaning and drive in needs; Simultaneously, flasher and dehumidifier are provided with the not water setting of driving.
Before entering flash tank, the utility model cushions and current control high pressure water, has ensured the work-ing life of expensive reducing valve like this.Also carried out special Wear-resistant Treatment at the ingress of flash tank inwall, prevented that height from containing solid water washing away equipment.
The bottom of steaming jar is provided with two outlets.The conical outlet of bottommost is used for driving, and another outlet is used for normal operation, in the means that are provided with flushing and following emptying on the outlet line.
The high-temperature gas that the flash tank flash distillation is come out, multiple processing means have been carried out: at first adopt special sieve tray internals, flash gas is carried out the purification of the first step, by this kind means, 80% solid dust in can flush away gas, second kind of purification means is a kind of gas cyclone devices, can further remove water droplet more than 90% and dust in the residual gas.A kind of demister of baffle plate type is adopted in final step, prevents that the water droplet of dust-laden from entering into next equipment, influences the dustiness of reuse water in the total system.
Certain height has been reserved at top at flash tank, the gravity settling effect of gas-liquid separation in this gas that has highly guaranteed to handle.
Flash tank and dehumidifier are two separate equipment.The gas that comes out from flash drum overhead enters the bottom of dehumidifier after by Venturi tube.This Venturi tube can be provided with according to the operational circumstances of reality.The gas that flash drum overhead is come out also will directly be received on the outlet line of humidifier, when cleaning in the driving operating mode with to this equipment, can allow flash gas directly walk this short circuit.
The effect of dehumidifier is that the gas that flash distillation is come out is carried out the recovery of steam, utilizes level with the energy that improves whole device.Because what adopt is the means of the sensible heat absorption steam latent heat of water, the liquid-gas ratio of operation is big, and the lime set of steam is directly got back in the system again.In order to ensure the normal running of dehumidifier under the high liquid-gas ratio, multithread road tower tray has been adopted in the inside of dehumidifier, and its quantity is more than or equal to one, the multithread road to the quantity of the downtake of tower tray more than or equal to 2.This design has improved the turndown ratio of device, has also improved the recovery ability of system's steam simultaneously, and through the gas behind the dehumidifier recovered steam, under the condition of dehumidifier normal running, gas temperature is not more than 5C than the temperature-difference of import liquid.
The top of dehumidifier is provided with wire mesh demister, also can not establish, and this depends on the deployment scenarios of gas linking device after next and the dehumidification.
Dehumidifier has reclaimed the liquid of steam in the gas, and through the pressurization fed downstream operation of pump, a part is sent to the Venturi tube of the gas inlet of dehumidifier, and a part is sent to the top of flash tank.Being provided with of this pipeline is beneficial to the fluctuation that protection upstream high pressure contains ash content in the buck.
Description of drawings:
Fig. 1: synoptic diagram of the present utility model;
Fig. 2: multithread of the present utility model road column plate synoptic diagram.
Embodiment:
Embodiment:
A kind of novel flash distillation dehumidification machinery has flasher 1 and dehumidifier 2; The middle part of flasher 1 connects grey water inlet, bottommost is provided with the outlet 3 of driving, drive to export 3 tops and be provided with exit from do 4, the middle and upper part is provided with connection work admission port 5 (supply high temperature Quench liquid or oiler feed), and top exit connects the bottom of dehumidifier 2 by pipeline; Dehumidifier 2 tops are provided with waste gas outlet 6, and top is provided with and connects driving feed-water inlet 7, and the middle part is provided with de-oxygenised water (or de-salted water etc.) import 8, and the bottom relief outlet connects the top and the recycle pump 9 of flasher 1; Recycle pump 9 is communicated with grey water inlet;
Flasher 1 top exit connects the bottom of dehumidifier 2 by Venturi tube 10;
Be provided with reducing valve and orifice plate current limliting composition element device (not shown) before the ash water inlet;
Ash faces grey water inlet in the water inlet and is provided with to pottery or is the wear-resistant device (not shown) of steel plate;
Also be provided with sieve tray 11, gas cyclone device 12 and traverse baffle demister 13 in the flasher 1; Sieve tray 11, gas cyclone device 12 and traverse baffle demister 13 are arranged successively from top to bottom; Traverse baffle demister 13 is arranged on the top of grey water inlet; Work admission port 5 is arranged between the affiliated sieve tray 11 and gas swirl-flow devices 12, or is arranged on the top of sieve tray 11; The upper surface of sieve tray 11 to the distance at flasher 1 top much larger than the distance between sieve tray 11 and the gas swirl-flow devices 12;
Also be provided with multithread road tower tray 13 in the dehumidifier 2; The quantity of multithread road tower tray 13 is more than or equal to one, the transversal inside that is arranged on dehumidifier 2;
The quantity of the downtake 14 of multithread road tower tray 13 is more than or equal to 2;
The top of dehumidifier 2 also is provided with wire mesh demister 15 is set.
When this novel flash distillation dehumidification machinery uses, the high pressure (pressure range 25bar-90bar) that comes from the upstream contains ash, (120 degree-300 degree) enter and carry out flash distillation the flash tank to contain the high temperature buck of gas, enter dehumidifier by Venturi tube and carry out dehumidification, waste gas is discharged, the water major part that purifies is dodged by recycle pump and is got back to grey water inlet dilution buck, and small portion is got back to flasher and done the usefulness of cleaning and drive in needs; Simultaneously, flasher and dehumidifier are provided with the not water setting of driving.
Before entering flash tank, the utility model cushions and current control high pressure water, has ensured the work-ing life of expensive reducing valve like this.Also carried out special Wear-resistant Treatment at the ingress of flash tank inwall, prevented that height from containing solid water washing away equipment.
The bottom of steaming jar is provided with two outlets.The conical outlet of bottommost is used for driving, and another outlet is used for normal operation, in the means that are provided with flushing and following emptying on the outlet line.
The high-temperature gas that the flash tank flash distillation is come out, multiple processing means have been carried out: at first adopt special sieve tray internals, flash gas is carried out the purification of the first step, by this kind means, 80% solid dust in can flush away gas, second kind of purification means is a kind of gas cyclone devices, can further remove water droplet more than 90% and dust in the residual gas.A kind of demister of baffle plate type is adopted in final step, prevents that the water droplet of dust-laden from entering into next equipment, influences the dustiness of reuse water in the total system.
Certain height has been reserved at top at flash tank, the gravity settling effect of gas-liquid separation in this gas that has highly guaranteed to handle.
Flash tank and dehumidifier are two separate equipment.The gas that comes out from flash drum overhead enters the bottom of dehumidifier after by Venturi tube.This Venturi tube can be provided with according to the operational circumstances of reality.The gas that flash drum overhead is come out also will directly be received on the outlet line of humidifier, when cleaning in the driving operating mode with to this equipment, can allow flash gas directly walk this short circuit.
The effect of dehumidifier is that the gas that flash distillation is come out is carried out the recovery of steam, utilizes level with the energy that improves whole device.Because what adopt is the means of the sensible heat absorption steam latent heat of water, the liquid-gas ratio of operation is big, and the lime set of steam is directly got back in the system again.In order to ensure the normal running of dehumidifier under the high liquid-gas ratio, multithread road tower tray has been adopted in the inside of dehumidifier, and its quantity is more than or equal to one, and the quantity of the downtake of multithread road tower tray is more than or equal to 2.This design has improved the turndown ratio of device, has also improved the recovery ability of system's steam simultaneously, and through the gas behind the dehumidifier recovered steam, under the condition of dehumidifier normal running, gas temperature is not more than 5C than the temperature-difference of import liquid.
The top of dehumidifier is provided with wire mesh demister, also can not establish, and this depends on the deployment scenarios of gas linking device after next and the dehumidification.
Dehumidifier has reclaimed the liquid of steam in the gas, and through the pressurization fed downstream operation of pump, a part is sent to the Venturi tube of the gas inlet of dehumidifier, and a part is sent to the top of flash tank.Being provided with of this pipeline is beneficial to the fluctuation that protection upstream high pressure contains ash content in the buck.

Claims (8)

1. novel flash distillation dehumidification machinery, it is characterized in that: this novel flash distillation dehumidification machinery has flasher and dehumidifier; The middle part of described flasher connects grey water inlet, and bottommost is provided with the outlet of driving, and the outlet top of driving is provided with exit from do, and the middle and upper part is provided with connection work admission port, and top exit connects the bottom of described dehumidifier by pipeline; Described dehumidifier top is provided with waste gas outlet, and top is provided with and connects the driving feed-water inlet, and the middle part is provided with the de-oxygenised water import, and the bottom relief outlet connects the top and the recycle pump of described flasher; Described recycle pump is communicated with described grey water inlet.
2. novel flash distillation dehumidification machinery according to claim 1, it is characterized in that: described flasher top exit connects the bottom of described dehumidifier by Venturi tube.
3. novel flash distillation dehumidification machinery according to claim 1 is characterized in that: be provided with reducing valve and orifice plate current limliting composition element device before the described grey water inlet.
4. novel flash distillation dehumidification machinery according to claim 1 is characterized in that: face grey water inlet in the described grey water inlet and be provided with to pottery or be the wear-resistant device of steel plate.
5. novel flash distillation dehumidification machinery according to claim 4 is characterized in that: also be provided with sieve tray, gas cyclone device and traverse baffle demister in the described flasher; Described sieve tray, gas cyclone device and traverse baffle demister are arranged successively from top to bottom; Described traverse baffle demister is arranged on the top of described grey water inlet; Described work admission port is arranged between the affiliated sieve tray and gas swirl-flow devices, or is arranged on the top of sieve tray; The upper surface of described sieve tray to the distance at flasher top much larger than the distance between sieve tray and the gas swirl-flow devices.
6. novel flash distillation dehumidification machinery according to claim 1 is characterized in that: also be provided with multithread road tower tray in the described dehumidifier; The quantity of described multithread road tower tray is more than or equal to one, the inside that is arranged on described dehumidifier of level.
7. novel flash distillation dehumidification machinery according to claim 6 is characterized in that: the quantity of the downtake of the multithread road tower tray of described dehumidifier is more than or equal to 2.
8. novel flash distillation dehumidification machinery according to claim 6, it is characterized in that: the top of described dehumidifier also is provided with wire mesh demister.
CN201120159261XU 2011-05-19 2011-05-19 Novel flashing and dehumidifying combination device Expired - Lifetime CN202089795U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120159261XU CN202089795U (en) 2011-05-19 2011-05-19 Novel flashing and dehumidifying combination device

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Application Number Priority Date Filing Date Title
CN201120159261XU CN202089795U (en) 2011-05-19 2011-05-19 Novel flashing and dehumidifying combination device

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CN202089795U true CN202089795U (en) 2011-12-28

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102241419A (en) * 2011-05-19 2011-11-16 丁海荣 Novel flashing and dehumidifying combined device
CN103435209A (en) * 2013-05-27 2013-12-11 贵州天福化工有限责任公司 Processing method for acidic ash water
CN108423727A (en) * 2018-05-22 2018-08-21 中国华能集团清洁能源技术研究院有限公司 A kind of coal gasified black water vacuum flashing device and working method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102241419A (en) * 2011-05-19 2011-11-16 丁海荣 Novel flashing and dehumidifying combined device
CN103435209A (en) * 2013-05-27 2013-12-11 贵州天福化工有限责任公司 Processing method for acidic ash water
CN108423727A (en) * 2018-05-22 2018-08-21 中国华能集团清洁能源技术研究院有限公司 A kind of coal gasified black water vacuum flashing device and working method
CN108423727B (en) * 2018-05-22 2023-09-29 中国华能集团清洁能源技术研究院有限公司 Coal gasification black water decompression flash evaporation device and working method

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C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Free format text: FORMER OWNER: WANG QINGFEN

Effective date: 20130923

Owner name: TIANJIN SHENGYUAN ENVIRONMENT CO., LTD.

Free format text: FORMER OWNER: DING HAIRONG

Effective date: 20130923

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 214200 WUXI, JIANGSU PROVINCE TO: 300384 NANKAI, TIANJIN

TR01 Transfer of patent right

Effective date of registration: 20130923

Address after: 300384 Tianjin City Huayuan Industrial Zone (outer ring) five Haitai Development Road No. 16 Building No. -2-301 B-6

Patentee after: Tianjin Shengyuan Environment Co., Ltd.

Address before: 214200 Jiangsu province Yixing huankeyuan Garden Road No. 48

Patentee before: Ding Hairong

Patentee before: Wang Qingfen

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20111228