CN207716401U - A kind of Vaporizing cooling drainage - Google Patents
A kind of Vaporizing cooling drainage Download PDFInfo
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- CN207716401U CN207716401U CN201721569155.2U CN201721569155U CN207716401U CN 207716401 U CN207716401 U CN 207716401U CN 201721569155 U CN201721569155 U CN 201721569155U CN 207716401 U CN207716401 U CN 207716401U
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- flash vessel
- platoon
- water
- delivery outlet
- blowdown
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Abstract
The utility model is related to a kind of Vaporizing cooling drainages.The system includes Vaporizing cooling drum, platoon flash vessel, softened water tank and flash vessel is arranged surely, Vaporizing cooling drum includes determining blowdown water output and platoon sewage delivery outlet, platoon flash vessel includes platoon sewage input port, delivery outlet and platoon flash vessel bottom delivery outlet at the top of platoon flash vessel, softened water tank includes heat exchanger, heat exchanger includes heat exchanger input port and heat exchanger delivery outlet, surely row's flash vessel includes determining blowdown water input, surely the mouth of a river is discharged, indirect steam delivery outlet and platoon discharge water input port, Vaporizing cooling drum is separately connected platoon flash vessel and arranges flash vessel surely, the heat exchanger input port of platoon flash vessel bottom delivery outlet connection heat exchanger, the platoon of heat exchanger delivery outlet connection row's flash vessel surely discharges water input port.The system not only ensure that equipment normal operation, but also have been directed to the processing of sewage and accomplish to recycle；The waste of water resource is reduced, it can be achieved that water-saving and energy-efficient dual purpose.
Description
Technical field
The utility model generally relates to drainage field of waste heat utilization, and in particular to a kind of Vaporizing cooling drainage.
Background technology
It is one of them to have several pipe-line systems, blow-down system in evaporated cooling system.Due to blowoff line system
System is smaller, often payes attention to not enough, and to design disunity occur, division of design is indefinite, and Interference fit is uncoordinated etc..Blow-off pipe
It is an important pipe-line system though road system is small, it not only influences the quality of evaporated cooling system blowdown, also affects
The safety of system engineering.
The blowdown of evaporated cooling system is divided into two kinds of continuous blowdown and periodical blowdown.Continuous blowdown is also known as surface blow-off,
It asks continuously from stove water salt alkali concentration highest portion position discharge part stove water, to reduce saliferous, alkali number, amount containing silicic acid in stove water
And the fecal material content in suspended state, so platoon pipe is located under ordinary water level at 80-100mm.Periodical blowdown is mainly arranged
Except the deposits such as grain slag and dirt in stove, so its sewage draining exit is arranged in the lower part of drum and header bottom more.By correctly closing
The method for discharging pollution of reason can exhaust impurity, dirt, incrustation scale in stove water, control the basicity and salt content of pot water, make stove water water quality
Meet national standard, can ensure that the cleaning of heating surface and meet qualified steam quality requirement, extend drum and
The service life of pipeline.
Currently, the quantity of steam of most of heating furnace evaporated cooling systems is not very much, when stable, system blowdown is big
Mostly use simple drainage.Drum continuous blow down system does not set platoon flash vessel, and it is swollen that platoon sewage is directed directly to periodical blowdown
Swollen device, steam accesses oxygen-eliminating device or is discharged into air after sewage dilatation, and the sewage after decompression is directly discharged into trench.The drainage knot
Structure is simple, and investment occupation of land is all seldom, but continuous blowdown category steam water interface, is easy to happen water slug.Since drum blowdown flow rate has
It is limited, so poor controllability.A small amount of steam is had when sewerage to diffuse, and pollutes environment and water pollution.In addition, there is also remaining
The problem of thermal resource loses and water resource is lost, efficiency of energy utilization is low.
Utility model content
The purpose of this utility model is to provide a kind of Vaporizing cooling drainage, which uses
Continuous blowdown and the double system of periodical blowdown.
The utility model provides a kind of Vaporizing cooling drainage comprising Vaporizing cooling drum, platoon flash vessel, soft
Water tank and flash vessel is arranged surely.The Vaporizing cooling drum includes determining blowdown water output and platoon sewage delivery outlet.The platoon
Flash vessel includes platoon sewage input port, platoon flash vessel top delivery outlet and platoon flash vessel bottom delivery outlet.The soft water
Case includes heat exchanger, and the heat exchanger includes heat exchanger input port and heat exchanger delivery outlet.Surely the row flash vessel includes fixed row
Sewage input port, the mouth of a river is discharged surely, indirect steam delivery outlet and platoon discharge water input port.The platoon of the Vaporizing cooling drum is dirty
Water output connects the platoon sewage input port of the platoon flash vessel, described to determine that the connection of blowdown water output is described to arrange dilatation surely
Device determines blowdown water input, and the platoon flash vessel bottom delivery outlet connects the heat exchanger input port of the heat exchanger, institute
It states heat exchanger delivery outlet and connects the platoon of the flash vessel of row surely and discharge water input port.
Preferably, according to Vaporizing cooling drainage above-mentioned, wherein the heat exchanger is single process pipe heat exchanger.
Preferably, according to Vaporizing cooling drainage above-mentioned, wherein the system also includes oxygen-eliminating device, the deoxygenation
Device connects delivery outlet and the indirect steam delivery outlet for arranging flash vessel surely at the top of the platoon flash vessel of the platoon flash vessel, uses
The indirect steam delivery outlet of delivery outlet and the flash vessel of row surely is defeated at the top of the platoon flash vessel for receiving the platoon flash vessel
The indirect steam gone out.
Preferably, according to Vaporizing cooling drainage above-mentioned, wherein the system also includes blowdown header, the vapour
The blowdown water output of determining for changing cooling drum determines blowdown water input, institute through what the blowdown header connected the flash vessel of row surely
It includes condensation water output to state blowdown header.
It is highly preferred that according to Vaporizing cooling drainage above-mentioned, wherein the Vaporizing cooling drum to determine sewerage defeated
Switch valve and regulating valve are set gradually after outlet and before the blowdown header.
Preferably, according to Vaporizing cooling drainage above-mentioned, wherein the system comprises buffer tank, the buffering
Water tank includes that blowdown water input, cooling water input, cycle water output and sewage draining exit, the blowdown water input connect institute
State determine row's flash vessel determine the discharge mouth of a river.Preferably, the buffer tank includes filter, for filtering in the buffer tank
Sewerage.
Or preferably, according to Vaporizing cooling drainage above-mentioned, wherein the system also includes bypass ducts, described
The platoon for the platoon flash vessel bottom delivery outlet and the flash vessel of row surely that bypass duct is directly connected to the platoon flash vessel is put
Water input.
Vaporizing cooling drainage provided by the utility model not only ensure that equipment normal operation, but also have been directed to the place of sewage
Reason accomplishes to recycle；The waste of water resource is reduced, it can be achieved that water-saving and energy-efficient dual purpose.
Vaporizing cooling drainage provided by the utility model carries out reasonability use to twin-stage blowdown apparatus, ensures blowdown
The reliability and validity of hydro-thermal amount recovery technology keep system more economical more rationally.
When Vaporizing cooling drainage stable operation continuous blowdown provided by the utility model, heat exchange is set in softened water tank
Device, it is ensured that continuous blowdown part of waste heat recycles.Using single process pipe type heat transfer structure, when increasing stop of the sewage in pipe
Between.When carrying out fixed row under Vaporizing cooling underload, because provided with blowdown header, reducing water circulating speed, grain slag being made easily to sink,
Advantageous primary deposition, the secondary precipitation removal in buffer tank.
Description of the drawings
Fig. 1 is a kind of embodiment structure chart of Vaporizing cooling drainage provided by the utility model,
Reference numeral：
10, Vaporizing cooling drum；
20, platoon flash vessel；
30, softened water tank, 31, heat exchanger；
40, flash vessel is arranged surely；
50, blowdown header；
60, buffer tank.
Specific implementation mode
Below in conjunction with drawings and examples, specific embodiment of the present utility model is described in more details, with
Just the advantages of better understood when the embodiment of the utility model and its various aspects.However, specific implementations described below
Mode and embodiment are for illustrative purposes only, rather than limitations of the present invention.
As shown in Figure 1, the utility model provides a kind of Vaporizing cooling drainage comprising Vaporizing cooling drum 10,
Platoon flash vessel 20, softened water tank 30 and surely arrange flash vessel 40.Vaporizing cooling drum 10 includes determining blowdown water output and platoon dirt
Water output.Platoon flash vessel 20 includes platoon sewage input port, platoon flash vessel top delivery outlet and platoon flash vessel bottom
Delivery outlet.Softened water tank 30 includes heat exchanger 31, and heat exchanger 31 includes heat exchanger input port and heat exchanger delivery outlet.Surely flash vessel is arranged
40 include determine that blowdown water input, the discharge mouth of a river, indirect steam delivery outlet and platoon discharge water input port surely.Vaporizing cooling drum 10
Platoon sewage delivery outlet connection platoon flash vessel 20 platoon sewage input port, determine blowdown water output and connect to arrange flash vessel surely
40 determine blowdown water input, and platoon flash vessel bottom delivery outlet connects the heat exchanger input port of heat exchanger 31, heat exchanger output
The platoon of mouthful connection row's flash vessel 40 surely discharges water input port.
When carrying out continuous blowdown (i.e. surface blow-off) using above system, continuously from the salt of Vaporizing cooling drum 10
Alkali concentration highest position discharge part pot water, to reduce saliferous, alkali number in pot water, amount containing silicic acid and the dregs in suspended state
Object content.Platoon sewage transport to platoon flash vessel 20 is subjected to decompression flash distillation, obtains indirect steam and dirty hot water.Wherein, excellent
It is selected as platoon sewage to be delivered in platoon flash vessel 20 by electric control valve, is down to 0.12-0.2MPa gauge pressures and obtains secondary steaming
Vapour and dirty hot water.Indirect steam is defeated from platoon flash vessel bottom delivery outlet from delivery outlet output, dirty hot water at the top of platoon flash vessel
Go out.Dirty hot water is delivered to the heat exchanger 31 of softened water tank 30 through heat exchanger input port, with the heated medium in softened water tank 30 into
After row heat exchange, then from heat exchanger delivery outlet export.Dirty hot water after heat exchange is delivered to through the platoon input port that discharges water and determines row
Flash vessel 40 carries out decompression flash distillation, obtains indirect steam and sewerage, and indirect steam is exported from indirect steam delivery outlet, sewerage
It is exported from the fixed discharge mouth of a river.Indirect steam and dirty hot water can be used as heat source and is used, the loss of recovery section continuous blowdown
Heat.
When carrying out periodical blowdown (bottom blow-down) using above system, sewerage conveying will be determined from Vaporizing cooling drum
It is secondary to determining after row's flash vessel 40 mixes with the dirty hot water after heat exchange, to carry out decompression flash distillation, obtain indirect steam and sewerage
Steam is exported from indirect steam delivery outlet, and sewerage is exported from the fixed discharge mouth of a river.
The platoon that the platoon sewage delivery outlet of Vaporizing cooling drum 10 preferably connects platoon flash vessel 20 by platoon pipe is dirty
Water input.Platoon pipe is located under the ordinary water level of Vaporizing cooling drum 10 at 80-100mm.Vaporizing cooling drum 10 determines row
Sewage delivery outlet preferably determines comb connection excessively, and row's flash vessel 40 determines blowdown water input surely.Determine comb and is located at Vaporizing cooling drum
10 bottom.Therefore, row's blowdown is to exclude the effective means of the basic sediments such as grain slag and dirt, while having reduction pot water surely
The effect of concentration.
In one embodiment, heat exchanger 31 is single process pipe heat exchanger.It is preferred that using inclined tube heat exchange structure.Increase
Residence time of the sewage in heat exchanger, it is ensured that platoon part of waste heat recycles.
In one embodiment, system further includes oxygen-eliminating device, and oxygen-eliminating device connects the platoon flash vessel top of platoon flash vessel
Portion's delivery outlet and the indirect steam delivery outlet for arranging flash vessel surely, the platoon flash vessel top delivery outlet for receiving platoon flash vessel
The indirect steam exported with the indirect steam delivery outlet for determining row's flash vessel.Water supply in oxygen-eliminating device or straight is heated with indirect steam
It connects to introduce and improves Enthalpy of Feed Water in feed-tank.Because feed temperature is higher, the pernicious gas (CO of dissolving2、H2S etc.) more it is easy quilt
It detaches and escapes, to be conducive to the corrosion protection of metal, on the other hand also stabilize 20 pressure of platoon flash vessel.
In one embodiment, system further includes blowdown header, and Vaporizing cooling drum 10 determines blowdown water output warp
Surely row's flash vessel 40 determines blowdown water input to the connection of blowdown header 50, and blowdown header 50 includes condensation water output.
When carrying out periodical blowdown using above system, by from Vaporizing cooling drum 10 to determine sewerage cold through being discharged in advance
The blowdown header 50 of condensate, which is delivered to, determines row's flash vessel 40.Due to often having stockpiled condensed water in pipeline, temperature is higher when blowdown
Determine sewerage and condensed water meet and often generate water hammer, 10 lower section of Vaporizing cooling drum sets blowdown header 50, utilizes potential difference
Condensed water is accumulated in into blowdown header 50, condensed water is first emptied before periodical blowdown.Blowdown header 50 makes water circulating speed reduce, water
Slag easily sinks, advantageous further blowdown.
In one embodiment, Vaporizing cooling drum 10 determine after blowdown water output and blowdown header 50 before according to
Secondary setting switch valve and regulating valve.Regulating valve, to adjust blowdown flow rate.
All kinds of valves can be just opened when due to wanting periodical blowdown, have larger pressure difference before and after valve, so in valve when blowdown
Door opens moment generation covibration, therefore blowdown header 50 is arranged below switch valve and regulating valve, to avoid covibration.
In one embodiment, system further includes buffer tank 60.Buffer tank 60 includes blowdown water input, cooling
Water input, cycle water output and sewage draining exit, row's flash vessel 40 determines the discharge mouth of a river to the connection of blowdown water input surely.
The sewerage of the row's of making by oneself flash vessel 40 is delivered to buffer tank 60 and is precipitated to obtain top clear water in the future, with life
Water is mixed to get recirculated water (i.e. saline solution), to reduce Ca in recirculated water2+、Mg2+Content.Sewerage self-temperature is higher, can be
Circulating water heating is conducive to accelerate ion-exchange reactions speed to 30 DEG C or so, reduces the counter ion effect in regeneration replacement process
It answers, improves regeneration effect, reduce salt consumption.Recirculated water can be used as raw water to be sent into circulation reuse.
In one embodiment, buffer tank 60 further includes filter, for filtering the sewerage in buffer tank.
In one embodiment, system further includes bypass duct, and bypass duct is directly connected to the platoon of platoon flash vessel
The flash vessel bottom delivery outlet and platoon of row's flash vessel discharges water input port surely.
The utility model additionally provides a kind of method for discharging pollution using above system comprising continuous blowdown method and periodically
Method for discharging pollution.
Continuous blowdown method includes：
(1) the platoon sewage transport from Vaporizing cooling drum to platoon flash vessel is subjected to decompression flash distillation, obtained secondary
Steam and dirty hot water, indirect steam is from delivery outlet output at the top of platoon flash vessel, and dirty hot water is from platoon flash vessel bottom delivery outlet
Output.
(2) dirty hot water is delivered to the heat exchanger of softened water tank through heat exchanger input port, with the heated medium in softened water tank
Carry out heat exchange after, then from heat exchanger delivery outlet export.
(3) the dirty hot water after heat exchange is delivered to through the platoon input port that discharges water and determines row's flash vessel and carries out decompression flash distillation, obtained
To indirect steam and sewerage, indirect steam is exported from indirect steam delivery outlet, and sewerage is exported from the fixed discharge mouth of a river.
Periodical blowdown method includes：
(a) sewerage of determining from Vaporizing cooling drum is delivered to and determines row's flash vessel and is mixed with the dirty hot water after heat exchange
Afterwards, decompression flash distillation is carried out, indirect steam and sewerage are obtained, indirect steam is exported from indirect steam delivery outlet, and sewerage is from calmly
Mouth of a river output is discharged.
Evaporated cooling system water supply system is treated softening demineralized water, in order to ensure steam quality qualification, strictly
Control of sewage disposal amount makes to determine sewerage and platoon sewage water is smaller, and more cleans, and can act on circulation supply
Water.
In one embodiment, method for discharging pollution further includes：The sewerage that step (3) and/or step (a) obtain enters slow
Waste preventer is precipitated to obtain top clear water, and recirculated water is mixed to get with unboiled water.In buffer tank not due to water amount of blowdown
Greatly, system passes through twin-stage blowdown system again, improves recovering effect.
In one embodiment, method for discharging pollution further includes：The indirect steam that step (3) and/or step (a) are obtained is defeated
Enter oxygen-eliminating device to heat the water supply in oxygen-eliminating device and/or increase Enthalpy of Feed Water in water tank.
In one embodiment, method for discharging pollution further includes：In step (a), sewerage will be determined through discharge condensed water in advance
Blowdown header be delivered to and determine row's flash vessel.
In one embodiment, method for discharging pollution further includes：The sewerage that step (3) and/or step (a) obtain enters slow
After waste preventer is precipitated, after being mixed with cooling water, exported from sewage draining exit.
In one embodiment, periodical blowdown method further includes that drum discharges water, oxygen-eliminating device discharges water, accident discharges water for processing
And/or boiler acid washing wastewater.
Processing drum and/or oxygen-eliminating device, which discharge water to discharge water including drum and/or oxygen-eliminating device, passes sequentially through blowdown header, fixed row's expansion
Container and buffer tank are exported from the cycle water output of buffer tank, are fed for circulation.
Process accident discharges water to discharge water including accident carries out decompression flash distillation by blowdown header into row's flash vessel surely, and decompression is dodged
Accident after steaming discharges water into buffer tank, is exported from the cycle water output of buffer tank, is fed for circulation.
Processing boiler acid washing wastewater include boiler acid washing wastewater by blowdown header, arrange flash vessel and buffer tank surely, from
The sewage draining exit of buffer tank exports.Boiler acid washing wastewater discontinuity is very strong, and several years just once, but water is very big every time, main
It is suspended matter to want pollutant, and organic pollution, pH is also exceeded, does not generally recycle the sewage draining exit directly from buffer tank defeated
Go out.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate the utility model example,
And it does not limit the embodiments.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.And thus
Among changes and variations that derived from are still in the scope of protection of the utility model.
Claims (8)
1. a kind of Vaporizing cooling drainage, which is characterized in that it include Vaporizing cooling drum, platoon flash vessel, softened water tank and
Surely flash vessel is arranged,
The Vaporizing cooling drum includes determining blowdown water output and platoon sewage delivery outlet,
The platoon flash vessel includes platoon sewage input port, platoon flash vessel top delivery outlet and the output of platoon flash vessel bottom
Mouthful,
The softened water tank includes heat exchanger, and the heat exchanger includes heat exchanger input port and heat exchanger delivery outlet,
Surely the row flash vessel includes determine that blowdown water input, the discharge mouth of a river, indirect steam delivery outlet and platoon discharge water input surely
Mouthful,
The platoon sewage delivery outlet of the Vaporizing cooling drum connects the platoon sewage input port of the platoon flash vessel, described fixed
What blowdown water output connected the flash vessel of row surely determines blowdown water input, the platoon flash vessel bottom delivery outlet connection
The heat exchanger input port of the heat exchanger, the platoon that the heat exchanger delivery outlet connects the flash vessel of row surely discharge water input port.
2. Vaporizing cooling drainage according to claim 1, which is characterized in that the heat exchanger is that single process tubular type is changed
Hot device.
3. Vaporizing cooling drainage according to claim 1, which is characterized in that the system also includes oxygen-eliminating device, institutes
Stating oxygen-eliminating device, to connect the indirect steam of delivery outlet and the flash vessel of row surely at the top of the platoon flash vessel of the platoon flash vessel defeated
The indirect steam of outlet, platoon flash vessel top delivery outlet and the flash vessel of row surely for receiving the platoon flash vessel is defeated
Export the indirect steam of output.
4. Vaporizing cooling drainage according to claim 1, which is characterized in that the system also includes blowdown header,
The Vaporizing cooling drum determine blowdown water output through the blowdown header connect the flash vessel of row surely to determine sewerage defeated
Entrance, the blowdown header include condensation water output.
5. Vaporizing cooling drainage according to claim 4, which is characterized in that the Vaporizing cooling drum determines blowdown
Switch valve and regulating valve are set gradually after water output and before the blowdown header.
6. Vaporizing cooling drainage according to claim 1, which is characterized in that the system comprises buffer tank, institutes
It includes blowdown water input, cooling water input, cycle water output and sewage draining exit, the blowdown water input to state buffer tank
Connect the flash vessel of row surely determines the discharge mouth of a river.
7. Vaporizing cooling drainage according to claim 6, which is characterized in that the buffer tank includes filter,
For filtering the sewerage in the buffer tank.
8. Vaporizing cooling drainage according to claim 1, which is characterized in that the system also includes bypass duct,
The bypass duct is directly connected to the platoon flash vessel bottom delivery outlet of the platoon flash vessel and the company for arranging flash vessel surely
Discharge water input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721569155.2U CN207716401U (en) | 2017-11-21 | 2017-11-21 | A kind of Vaporizing cooling drainage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721569155.2U CN207716401U (en) | 2017-11-21 | 2017-11-21 | A kind of Vaporizing cooling drainage |
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| Publication Number | Publication Date |
|---|---|
| CN207716401U true CN207716401U (en) | 2018-08-10 |
Family
ID=63061684
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721569155.2U Expired - Fee Related CN207716401U (en) | 2017-11-21 | 2017-11-21 | A kind of Vaporizing cooling drainage |
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| Country | Link |
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| CN (1) | CN207716401U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836362A (en) * | 2019-10-16 | 2020-02-25 | 兖矿国宏化工有限责任公司 | Boiler blow-off recycling method and device |
-
2017
- 2017-11-21 CN CN201721569155.2U patent/CN207716401U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836362A (en) * | 2019-10-16 | 2020-02-25 | 兖矿国宏化工有限责任公司 | Boiler blow-off recycling method and device |
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