CN206001435U - A kind of boiler blow-off hydrothermal exchange intermediate water tank - Google Patents
A kind of boiler blow-off hydrothermal exchange intermediate water tank Download PDFInfo
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- CN206001435U CN206001435U CN201620823805.0U CN201620823805U CN206001435U CN 206001435 U CN206001435 U CN 206001435U CN 201620823805 U CN201620823805 U CN 201620823805U CN 206001435 U CN206001435 U CN 206001435U
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- steam
- tank body
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- water separation
- water tank
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Abstract
This utility model is related to a kind of boiler blow-off hydrothermal exchange intermediate water tank, including tank body, snakelike condensing heat-exchanging pipe, one-level steam-water separation expansion apparatuss, two grades of steam-water separation condensers, temperature-detecting device, liquidometer, tank body top is connected with and the exhaustor being connected inside tank body, tank body top is provided with water tank manhole, two grades of steam-water separation condensers are arranged on tank body top, two grades of steam-water separation condenser bottoms are connected with inside tank body by return pipe, two grades of steam-water separation condenser overhead are provided with gland steam exhauster, bottom is connected with one-level steam-water separation expansion apparatuss top, snakelike condensing heat-exchanging pipe is connected with one-level steam-water separation expansion apparatuss, blowdown water inlet pipe is connected with snakelike condensing heat-exchanging pipe；Liquidometer is fixed on tank body.Advantage is：This intermediate water tank overall structure is simple, it is easy to accomplish, realize reaching the dual function of energy-saving and emission-reduction using set of device, reduce the floor space of residual heat system.
Description
Technical field
This utility model is related to one kind and can build residual neat recovering system in metallurgy, coking, stove etc., using low temperature heat smoke
Produce the residual heat using device of the drainage system of afterheat steam, more particularly, to a kind of boiler blow-off hydrothermal exchange intermediate water tank and making
Use method.
Background technology
Steam boiler is a kind of common heat-exchange apparatus, is also a kind of special pressure vessel, steams for producing saturation
Vapour or superheated steam.Its main heated medium is water, and heating medium can be using various origin of heat it is also possible to utilize various
Residual heat resources.Waste heat boiler is widely used in the kiln tail low-temperature flue gas of the industries such as metallurgy, coking, stove, the waste heat of low-temperature water source
Reclaim.
In the production application of waste heat boiler, for ensureing the normal operating conditions of boiler it is necessary to drum by waste heat boiler
The stove water of the higher salt concentrations of (or drum) interior steam-water separation liquid level is drained, referred to as drum surface blow-off, in addition waste heat boiler
Vaporizer be in operation and form insoluble grain slag in furnace bottom, need emptying grain slag within certain interval time.Therefore general
Boiler, according to the difference of pressure and working condition, just sets corresponding blowdown rate 2%-10% in design.Whether drum liquid
The continuous blowdown in face or the periodical blowdown of furnace bottom, the stove water of its higher temperature producing and pressure is when discharging it is necessary to meet
Cooling, the condition of blood pressure lowering.
Heat entrained by the sewer of boiler, typically cools down blood pressure lowering through blowdown system (also referred to as blowdown expansion apparatuss)
Afterwards, enter cooling tank, the pot water after cooling is reduced to 50 DEG C about.Finally enter sewage well.Complete boiler blow-off flow process.But this
Partial heat is not reclaimed, but directly emits, and increased a lot of affiliated facilities, causes certain system
Construction cost increases, and the cooling water of cooling tank is also larger consumption simultaneously.Increased operation expense.
In addition, in practical engineering application, the general low pressure steam producing of waste heat boiler, yield is less.Metallurgical, burnt
Lay under tribute in the entirely main technological process of the industries such as change, stove.It is generally used as attached technique to be designed building.
Therefore typically all individually it is equipped with control system and water treatment system.Need to build water process tank truck in waste heat boiler nearby location
Between, and it is separately provided middle softening water tank or sweet-water tank, and it is equipped with single blowdown system.By construction site
Limit, the construction cooling of suitable place is found in the position being again difficult near waste heat boiler equipment typically in compact place
Pond.
The current waste heat application in boiler blowdown water, near the exhaust steam access system usually producing blowdown system
Thermal deaerator, as low-pressure steam supplement.But also just with the heat of exhaust steam, substantial amounts of sensible heat is with cooling tank
Cooling directly slatterns.In addition, not all waste heat boiler is equipped with thermal deaerator, lower pressure, compared with abortion
The low pressure waste heat boiler of energy does not need to be equipped with oxygen-eliminating device.And a part of waste heat boiler is equipped with sponge iron normal temp. deaerator.
And the exhaust steam of inapplicable blowdown system reclaims.
In addition, sewer waste-heat recovery device in addition is to utilize shell-and-tube heat exchanger, by waste heat boiler sewer
Carry out heat exchange with boiler feedwater, also can obtain certain recovering effect.But the water supply modes of most of waste heat boilers are adopted at present
It is that regulating valve mode controls make-up water.Modulated valve actuator speed of action and the restriction of PID regulation program, its make-up water
Strength Changes larger, or flow is very big, or flow very little.Can not be strong fully according to design-calculated heat exchange during actual motion
Degree carrys out work.
In sum, the mode at present sewer of waste heat boiler being carried out waste heat recovery is limited by environment and process conditions
System, all can not more thoroughly, efficiently reclaim sensible heat.Need one kind more suitably heat-exchanger rig, problem above can be overcome, finally
The sewer of high salinity flows into sewage well, and a small amount of exhaust steam flashing off returns in water tank through condensation and recycles, and reduces the energy
Waste.And save construction cost and operation expense.
Content of the invention
For overcoming the deficiencies in the prior art, the purpose of this utility model is the pot providing a kind of structure simple, easy to use
Dirt removing hydrothermal exchange intermediate water tank and using method, can directly exchange the heat that boiler blowdown water carries to boiler feedwater water
Case, the significantly more efficient recovery waste heat boiler blowdown water waste heat of energy, significantly save the intermediate heat transfer device of discharges heat, make the energy
Waste be preferably minimized.
For achieving the above object, this utility model is achieved through the following technical solutions：
A kind of boiler blow-off hydrothermal exchange intermediate water tank, including tank body, snakelike condensing heat-exchanging pipe, one-level steam-water separation
Expansion apparatuss, two grades of steam-water separation condensers, temperature-detecting device, liquidometers, tank body top be connected with tank body in
The exhaustor that portion is connected, tank body top is provided with water tank manhole, and upper lateral part is provided with water inlet pipe, and blow-off pipe is arranged on water tank originally
Body bottom, two grades of steam-water separation condensers are arranged on tank body top, and return pipe is passed through in two grades of steam-water separation condenser bottoms
It is connected with inside tank body, two grades of steam-water separation condenser overhead are provided with gland steam exhauster, two grades of steam-water separation condenser bottoms
It is connected with the one-level steam-water separation expansion apparatuss top being arranged within tank body, one-level steam-water separation expansion apparatuss bottom and row
Dirty outlet pipe is connected, and snakelike condensing heat-exchanging pipe is connected with one-level steam-water separation expansion apparatuss, blowdown water inlet pipe and snakelike condensation
Heat exchanger tube is connected；Liquidometer is fixed on tank body, in order to measure the liquid level within tank body；Water tank minimum liquid level position
Install temperature-detecting device.
Described tank body is cylindrical tank or cubic water tank.
Described snakelike condensing heat-exchanging pipe adopts coil, by middle low-pressure boiler seamless steel pipe manufacture, is fixed on water tank
The inner bottom part of body, and be 150-200mm with the distance of tank body bottom.
Described snakelike condensing heat-exchanging pipe is made up of multiple rows of set of heat exchange tubes, and multiple rows of set of heat exchange tubes adopts import header and outlet
Header is in parallel.
The bottom of described one-level steam-water separation expansion apparatuss is taper bucket structure, the taper bucket structural base and blowdown outlet pipe
It is connected.
Described tank body adopts external thermal insulation form, is covered with the insulation material that thickness is 50-100mm outside tank body
Layer.
Installing stainless steel wave card and steel wire inside two grades of described steam-water separation condensers.
The gland steam exhauster outlet of the described exhaustor at tank body top and two grades of steam-water separation condenser overhead is arranged on
Outdoor aerial.
Compared with prior art, the beneficial effects of the utility model are：
This intermediate water tank overall structure is simple, it is easy to accomplish, the sewer using boiler or heat exchanger is intake by blowdown
Pipe enters snakelike condensing heat-exchanging pipe heat exchange, using intermediate water tank discharge sewage cooling decompression, realizes reaching section using set of device
The dual function that can reduce discharging, reduces the floor space of residual heat system；The heat that boiler blowdown water carries directly can be exchanged to this
The heat-exchanging water tank of utility model, the significantly more efficient recovery waste heat boiler blowdown water waste heat of energy, significantly save in discharges heat
Between heat-exchanger rig, so that the waste of the energy is preferably minimized.
Brief description
Fig. 1 is structural representation of the present utility model.
In figure：101- blow-off pipe 102- steel ladder 103- temperature-detecting device 104- water tank manhole 105- exhaustor
106- bis- grades of steam-water separation condenser 110- water inlet pipe 111- liquid of return pipe 107- gland steam exhauster 108- steam-water separation net 109-
Position meter 112- blowdown outlet pipe 113- one-level steam-water separation expansion apparatuss 114- snakelike condensing heat-exchanging pipe 115- blowdown water inlet pipe.
Specific embodiment
With reference to Figure of description, this utility model is described in detail, it should be noted that of the present utility model
Implement to be not limited to following embodiment.
See Fig. 1, a kind of boiler blow-off hydrothermal exchange intermediate water tank, including tank body, snakelike condensing heat-exchanging pipe 114,
Level steam-water separation expansion apparatuss 113, two grades of steam-water separation condensers 109, temperature-detecting device 103, liquidometers 111, tank body
Top is connected with and the exhaustor 105 being connected inside tank body, and tank body top is provided with water tank manhole 104, upper lateral part
It is provided with water inlet pipe 110, external stability has the steel ladder 102 corresponding with water tank manhole 104；Blow-off pipe 101 is arranged on tank body
Bottom, two grades of steam-water separation condensers 109 are arranged on tank body top, and two grades of steam-water separation condenser 109 bottoms are passed through back
Water pipe 106 is connected with inside tank body, and two grades of steam-water separation condenser 109 tops are provided with gland steam exhauster 107, and two grades of soda pops are divided
It is connected with one-level steam-water separation expansion apparatuss 113 top being arranged within tank body from condenser 109 bottom, one-level soda pop
Separate expansion apparatuss 113 bottom to be connected with blowdown outlet pipe 112, snakelike condensing heat-exchanging pipe 114 and one-level steam-water separation expansion apparatuss
113 are connected, and blowdown water inlet pipe 115 is connected with snakelike condensing heat-exchanging pipe 114；Liquidometer 111 is fixed on tank body, uses
To measure the liquid level within tank body；Water tank minimum liquid level position is provided with temperature-detecting device 103.
Wherein, the standard steel water tank sample-size that tank body is promulgated using country, is cylindrical tank or cubic water tank,
Internal arrangement of reinforcement, and according to anti-corrosion fitting-out grade design, manufacture accordingly and check.Tank body adopts external thermal insulation form, water tank
Body exterior is covered with the adiabator layer that thickness is 50-100mm, and insulation material is using the ep-type material of country's permission, permissible
For hard or soft.The exhaustor 105 at tank body top and the steam discharge at two grades of steam-water separation condenser 109 tops
Pipe 107 outlet is disposed in the outdoor aerial.
Snakelike condensing heat-exchanging pipe 114 adopts coil, and preferably snakelike light pipe, by middle low-pressure boiler seamless steel pipe system
Make, be fixed on the inner bottom part of tank body, and be to store in 150-200mm, with tank body with the distance of tank body bottom
Cold water heat exchange；Using single-stage, or using multistage, according to the production capacity of steam boiler, the heat exchange total amount meter of its sewer
Calculate the gross area of heat exchanger tube, and its total number of strokes is designed according to flow velocity, snakelike condensing heat-exchanging pipe 114 internal liquid flow velocity does not surpass
Cross 0.3m/s.Snakelike condensing heat-exchanging pipe 114 is made up of multiple rows of set of heat exchange tubes, and multiple rows of set of heat exchange tubes adopts import header and outlet collection
Case is in parallel.
One-level steam-water separation expansion apparatuss 113 adopt steel cylinder manufacture, and bottom adopts the taper bucket, and bottom is tied for the taper bucket
Structure, assembles sewer, the taper bucket structural base is connected with blowdown outlet pipe 112, in order to discharge outside water tank.
The main element of temperature-detecting device 103 is temperature sensor, using teletransmission temperature transmitter, may also be employed on the spot
Thermometer.
Two grades of steam-water separation condensers 109 adopt steel cylinder manufacture, natural cooling, internal installing stainless steel wave card and
Steel wire is as steam-water separation net 108.
The gland steam exhauster 107 outlet setting at the exhaustor 105 at tank body top and two grades of steam-water separation condenser 109 tops
Outdoor aerial, it is to avoid scald.
Boiler blow-off hydrothermal exchange intermediate water tank using method, the sewer using boiler or heat exchanger adds for intermediate water tank
Heat, utilizes intermediate water tank discharge sewage cooling decompression simultaneously, realizes reaching the dual function of energy-saving and emission-reduction, tool using set of device
Body step is：
1) one-level steam-water separation expansion apparatuss 113 adopt cyclone mode to intake, and the stove water more than 100 DEG C is by blowdown water inlet pipe
The 115 snakelike condensing heat-exchanging pipes 114 of entrance carry out heat exchange, then enter one-level vapour from snakelike condensing heat-exchanging pipe 114 with tangential direction
Water separation expansion apparatuss 113, puffing, the steam of part flash distillation separates out, and enters two from one-level steam-water separation expansion apparatuss 113 top
Level steam-water separation condenser 109；The blowdown outlet pipe 112 from one-level steam-water separation expansion apparatuss 113 bottom for the low temperature liquid water is discharged,
To outer row ditch or sewage well；
2) steam of flash distillation when two grades of steam-water separation condensers 109, assemble, and flows back to water by return pipe 106 by condensation
This internal, minimizing liquid water loss of case, remaining steam is discharged by gland steam exhauster 107；
3) minimum level in tank body is higher than the top surface of snakelike condensing heat-exchanging pipe 114, it is to avoid snakelike condensing heat-exchanging pipe
114 is overheated.
Claims (8)
1. a kind of boiler blow-off hydrothermal exchange intermediate water tank it is characterised in that include tank body, snakelike condensing heat-exchanging pipe, one
Level steam-water separation expansion apparatuss, two grades of steam-water separation condensers, temperature-detecting device, liquidometers, tank body top be connected with
The exhaustor being connected inside tank body, tank body top is provided with water tank manhole, and upper lateral part is provided with water inlet pipe, and blow-off pipe sets
Put in tank body bottom, two grades of steam-water separation condensers are arranged on tank body top, two grades of steam-water separation condenser bottoms
It is connected with inside tank body by return pipe, two grades of steam-water separation condenser overhead are provided with gland steam exhauster, two grades of steam-water separations
Condenser bottom is connected with the one-level steam-water separation expansion apparatuss top being arranged within tank body, and one-level steam-water separation expands
Device bottom is connected with blowdown outlet pipe, and snakelike condensing heat-exchanging pipe is connected with one-level steam-water separation expansion apparatuss, blowdown water inlet pipe
It is connected with snakelike condensing heat-exchanging pipe；Liquidometer is fixed on tank body, in order to measure the liquid level within tank body；Water tank
Minimum liquid level position is provided with temperature-detecting device.
2. a kind of boiler blow-off hydrothermal exchange intermediate water tank according to claim 1 it is characterised in that described water tank this
Body is cylindrical tank or cubic water tank.
3. a kind of boiler blow-off hydrothermal exchange intermediate water tank according to claim 1 is it is characterised in that described is snakelike cold
Solidifying heat exchanger tube adopts coil, by middle low-pressure boiler seamless steel pipe manufacture, is fixed on the inner bottom part of tank body, and and water tank
The distance of body bottom portion is 150-200mm.
4. a kind of boiler blow-off hydrothermal exchange intermediate water tank according to claim 1 is it is characterised in that described is snakelike cold
Solidifying heat exchanger tube is made up of multiple rows of set of heat exchange tubes, and multiple rows of set of heat exchange tubes adopts import header and outlet header in parallel.
5. a kind of boiler blow-off hydrothermal exchange intermediate water tank according to claim 1 is it is characterised in that described one-level vapour
The bottom of water separation expansion apparatuss is taper bucket structure, and the taper bucket structural base is connected with blowdown outlet pipe.
6. a kind of boiler blow-off hydrothermal exchange intermediate water tank according to claim 1 it is characterised in that described water tank this
Body adopts external thermal insulation form, is covered with the adiabator layer that thickness is 50-100mm outside tank body.
7. a kind of boiler blow-off hydrothermal exchange intermediate water tank according to claim 1 is it is characterised in that described two grades of vapour
Installing stainless steel wave card and steel wire inside water separation condenser.
8. a kind of boiler blow-off hydrothermal exchange intermediate water tank according to claim 1 it is characterised in that described water tank this
The gland steam exhauster outlet of the exhaustor at body top and two grades of steam-water separation condenser overhead is disposed in the outdoor aerial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620823805.0U CN206001435U (en) | 2016-08-01 | 2016-08-01 | A kind of boiler blow-off hydrothermal exchange intermediate water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620823805.0U CN206001435U (en) | 2016-08-01 | 2016-08-01 | A kind of boiler blow-off hydrothermal exchange intermediate water tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206001435U true CN206001435U (en) | 2017-03-08 |
Family
ID=58201807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620823805.0U Withdrawn - After Issue CN206001435U (en) | 2016-08-01 | 2016-08-01 | A kind of boiler blow-off hydrothermal exchange intermediate water tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206001435U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122930A (en) * | 2016-08-01 | 2016-11-16 | 中钢集团鞍山热能研究院有限公司 | A kind of boiler blow-off hydrothermal exchange intermediate water tank and using method |
-
2016
- 2016-08-01 CN CN201620823805.0U patent/CN206001435U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122930A (en) * | 2016-08-01 | 2016-11-16 | 中钢集团鞍山热能研究院有限公司 | A kind of boiler blow-off hydrothermal exchange intermediate water tank and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170308 Effective date of abandoning: 20180116 |