CN204494366U - A kind of boiler blow down flash device steam recovery apparatus - Google Patents
A kind of boiler blow down flash device steam recovery apparatus Download PDFInfo
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- CN204494366U CN204494366U CN201520134520.1U CN201520134520U CN204494366U CN 204494366 U CN204494366 U CN 204494366U CN 201520134520 U CN201520134520 U CN 201520134520U CN 204494366 U CN204494366 U CN 204494366U
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Abstract
The utility model relates to a kind of boiler blow down flash device steam recovery apparatus, and this reclaimer comprises water inlet pipe, blowdown system, outlet pipe, steam discharge pipe, steam jet mixing device and water pump; Described blowdown system is a Cylinder Shell, described water inlet pipe is arranged in the middle part of blowdown system along cylindrical cross section tangential direction, outlet pipe is in the bottom of blowdown system, steam discharge pipe is arranged in the top of blowdown system, and described steam injection apparatus is made up of suction chamber, intake chamber, nozzle, mixing chamber, diffusion room.The utility model is, the feature such as temperature low low for boiler blow down flash device exhaust steam pressure, the feature of spraying mixing apparatus in conjunction with steam provides a kind of boiler blow down flash device steam recovery apparatus, thus minimizing loss of steam and water, reduce units consumption, reduce environmental pollution.
Description
Technical field
The utility model relates to a kind of boiler blow down flash device steam recovery apparatus, belongs to heat recovery technical field.
Background technology
Current, China's using energy source still also exists that utilization ratio is low, deficiency in economic performance, the problems such as eco-environmental pressure is large.Energy-saving and emission-reduction, reduction energy consumption, the comprehensive utilization of energy rate that improves are the fundamental ways solving energy problem of China.China's industrial circle energy-output ratio accounts for 70% of national energy resource consumption total amount, and industrial exhaust heat utilization rate is low, and it is the major reason causing energy consumption high that the energy (energy) does not obtain fully comprehensive utilization.China's energy utilization rate is about 33%, lower than developed country by about 10%, and the industrial consumption energy waste heat in a variety of manners of at least 50% is directly discarded.On the other hand, China's industrial waste heat resource enriches, extensively be present in industrial every profession and trade production process, residual heat resources account for 17% ~ 67% of its fuel consumption total amount, wherein recovery rate reaches 60%, utilization rate of waste heat room for promotion is large, and energy-saving potential is huge, and industrial afterheat recovery utilizes and is considered to again a kind of " new forms of energy ".Therefore, industrial afterheat recovery utilizes the important content becoming and advance China's energy-saving and emission-reduction work in recent years.Residual heat resources belong to secondary energy sources, are the products after primary energy or combustible material are changed, or the heat that the heat sent in fuel combustion process is remaining after completing a certain technical process.In the unit operation of thermal power plant; in order to ensure the continuous safe and stable operation of boiler and improve the unit equipment life-span; must ensure that boiler water quality meets national Specification; employing method carries out continuous or periodic blowdown to boiler water; but the carbonated drink working medium of unit meeting large losses when boiler blow-off; usual heat power plant boiler drainage end arranges blowdown system; boiler blow down flash device discharge steam be by its top gland steam exhauster directly discharged to air, cause the loss of the energy and working medium and the thermal pollution of environment.Current most thermal power plant is not recycled this part steam discharge.Therefore, be necessary the method developing the utilization of a kind of boiler blow down flash device Steam Recovery, thus reduce loss of steam and water, reduce units consumption, reduce environmental pollution.
Summary of the invention
The utility model object is, the feature such as temperature low low for boiler blow down flash device exhaust steam pressure, the feature of mixing apparatus is sprayed in conjunction with steam, a kind of boiler blow down flash device steam recovery apparatus and recoverying and utilizing method thereof are provided, thus minimizing loss of steam and water, reduce units consumption, reduce environmental pollution.
The purpose of this utility model is achieved in that this reclaimer comprises water inlet pipe, blowdown system, outlet pipe, steam discharge pipe, steam jet mixing device and water pump, described blowdown system is a Cylinder Shell, described water inlet pipe is arranged in the middle part of blowdown system along cylindrical cross section tangential direction, outlet pipe is in the bottom of blowdown system, steam discharge pipe is arranged in the top of blowdown system, described steam injection apparatus is by suction chamber, intake chamber, nozzle, mixing chamber, diffusion room is formed, wherein suction chamber (interior layout positioning disk) one end connects steam discharge pipe, the other end is connected to the middle part of mixing chamber, the inner upper end of described mixing chamber is provided with a nozzle, intake chamber is provided with above described nozzle, described intake chamber is connected with water pump water outlet pipeline, described diffusion room is arranged on below mixing chamber.
Usually, blowdown system is stainless steel.Steam injection apparatus all adopts anticorrosion, high temperature resistant, resistance to erosion high-quality stainless steel.
Beneficial effect of the present invention is:
1, the present invention arranges a carbonated drink jet mixing device on boiler blow down flash device gland steam exhauster, utilize the feature of steam jet mixing device, condensed water is adopted to spray the steam discharge of suction boiler blow down flash device, the Homogeneous phase mixing of condensed water and steam discharge is realized in steam jet mixing device, use steam discharge heating condensate water, make steam discharge condense in condensed water simultaneously, reclaimed heat and the working medium of steam discharge, the steam discharge completing boiler blow down flash device reclaims.Improve thermal power plant energy recovery utilization ratio, reach the economic benefit of energy-saving and emission-reduction.
2, technique is simple, easy to operate, and maintenance, maintenance are minimum, and effect stability, operational management facilitates cost low.
3, the efficiency of heating surface is high, and energy-saving effect is obvious.
4, method is advanced, and fluid flow velocity in steam jet mixing device is high, and mixing fully, all not easily produces scale formation in running.
Accompanying drawing explanation
Fig. 1 is boiler blow down flash device steam recovery apparatus structural representation.
Reference numeral: 1 water inlet pipe, 2 blowdown systems, 3 outlet pipes, 4 steam discharge pipes, 5 steam injection apparatus, 6 suction chambers, 7 intake chambers, 8 nozzles, 9 mixing chambers, 10 diffusion rooms, 11 water pumps.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 and embodiment, the present invention is elaborated further.
This reclaimer comprises water inlet pipe 1, blowdown system 2, outlet pipe 3, steam discharge pipe 4, steam injection apparatus 5 and water pump 11, described blowdown system 2 is a Cylinder Shell, described water inlet pipe 1 is arranged in the middle part of blowdown system 2 along cylindrical cross section tangential direction, outlet pipe 3 is in the bottom of blowdown system 2, steam discharge pipe 4 is arranged in the top of blowdown system 2, described steam injection apparatus 5 is by suction chamber 6, intake chamber 7, nozzle 8, mixing chamber 9, diffusion room 10 is formed, wherein arrange positioning disk in suction chamber 6() one end connection steam discharge pipe 4, the other end is connected to the middle part of mixing chamber 9, the inner upper end of described mixing chamber 9 is provided with a nozzle 8, described nozzle 8 is provided with intake chamber 7 above, described intake chamber 7 is connected with water pump 11 outlet pipeline, described diffusion room 10 is arranged on below mixing chamber 9.
The course of work:
1, from the saturation water that the sewer of boiler is under corresponding boiler working pressure, temperature is high, enthalpy is large, after entering boiler blow down flash device 2 by water inlet pipe 1, pressure lowers suddenly, sewer evaporation point reduces, saturation state is originally destroyed, part water releases heat becomes the saturation water under new pressure, and a part of water absorbs the latent heat of vaporization and becomes steam.Steam rises in blowdown system, completes the whole separation process of vapour and water behind rising one section of space.Blowdown system relies on Gravity Separation by gas, water separately, thus obtains the steam of low saline salinity.
2, the water in blowdown system under new saturation pressure is discharged by outlet pipe 3.In discharge process, blowdown system liquid level (300mm ~ 400mm) within zone of reasonableness need be maintained.
3, after entering the intake chamber 7 of steam injection apparatus 5 by the condensed water after water pump 11 boosts, sprayed by the nozzle 8 of the certain skew back degree of the uniform one-tenth of symmetry.Because condensed water flow velocity after nozzle 8 sprays becomes large instantaneously, in mixing chamber 9, form vacuum.The steam that boiler blow down flash device produces enters the suction chamber 6 of steam injection apparatus 5 through gland steam exhauster 4, then enters mixing chamber by positioning disk.Positioning disk slows down the flow velocity of steam, steam is imported in mixing chamber equably, in order to avoid condensed water current deflection, thus improves the usefulness of steam injection apparatus 5.In addition because steam directly contacts with condensed water current, carry out heat exchange, the steam condensation Cheng Shui of the overwhelming majority, the steam be not condensed in a small amount and incoagulable gas are also because rubbing mutually with the current of high velocity jet, mixing and extruding, be excluded by diffusion room, make the vacuum that the indoor formation of device is higher.Condensed water completes steam-water mixing heating behind diffusion room 10.
example:
It is 260 t/h that certain station boiler is exerted oneself, and blowdown rate is 2% ~ 3%.It is all direct to sky discharge that boiler blowdown water produces low-pressure steam after the dilatation of boiler blow down flash device, affects, cause energy significant wastage simultaneously to environment.
Boiler blow down flash device steam discharge reclaimer is reclaimed above-mentioned steam and is realized by following step:
Boiler blowdown water tangentially enters after blowdown system 2 through water inlet pipe 1, produces the steam of 100 DEG C through dilatation rear section sewer, completes carbonated drink separation in blowdown system 2.Sewer is drawn through outlet pipe, maintains blowdown system liquid level 300mm ~ 400mm.Condensate temperature is 38 DEG C, and condensate flow is about 20m
3/ h, enters steam injection apparatus 5 after water pump 11 boosts, and after intake chamber 7, nozzle 8, the flow velocity of water becomes large, makes to produce negative pressure in mixing chamber 9, the steam that suction boiler blow down flash device 2 produces.Steam enters mixing chamber 9 by suction chamber 6 and completes steam-water mixing, achieves the object of heating condensate water.Condensed water is heated to 88 DEG C by 38 DEG C, and heating effect is good.
In the present embodiment, thoroughly solved since boiler puts into operation, boiler blow down flash device is throughout the year to empty steam discharge problem.Owing to decreasing discharge of steam, namely decrease energy resource consumption, also indirectly reduce exhaust noise, serve the effect of environmental protection.Social synthesis's economic benefit is also very considerable.
Claims (1)
1. a boiler blow down flash device steam recovery apparatus, is characterized in that: this reclaimer comprises water inlet pipe (1), blowdown system (2), outlet pipe (3), steam discharge pipe (4), steam jet mixing device (5) and water pump (11), described blowdown system (2) is a Cylinder Shell, described water inlet pipe (1) is arranged in blowdown system (2) middle part along cylindrical cross section tangential direction, outlet pipe (3) is in the bottom of blowdown system (2), steam discharge pipe (4) is arranged in the top of blowdown system (2), described steam injection apparatus (5) is by suction chamber (6), intake chamber (7), nozzle (8), mixing chamber (9), diffusion room (10) is formed, wherein suction chamber (6) one end connects steam discharge pipe (4), the other end is connected to the middle part of mixing chamber (9), the inner upper end of described mixing chamber (9) is provided with a nozzle (8), described nozzle (8) is provided with intake chamber (7) above, described intake chamber (7) is connected with water pump (11) outlet pipeline, described diffusion room (10) is arranged on below mixing chamber (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520134520.1U CN204494366U (en) | 2015-03-10 | 2015-03-10 | A kind of boiler blow down flash device steam recovery apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520134520.1U CN204494366U (en) | 2015-03-10 | 2015-03-10 | A kind of boiler blow down flash device steam recovery apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204494366U true CN204494366U (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520134520.1U Expired - Fee Related CN204494366U (en) | 2015-03-10 | 2015-03-10 | A kind of boiler blow down flash device steam recovery apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN204494366U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864743A (en) * | 2016-05-26 | 2016-08-17 | 清华大学 | Pollution discharge, water and energy saving, recovery and separation device and method of steam injection boiler |
| CN109469897A (en) * | 2018-12-26 | 2019-03-15 | 连云港正航电力节能技术有限公司 | A kind of boiler is even fixed to be arranged receipts energy system and receives energy method |
-
2015
- 2015-03-10 CN CN201520134520.1U patent/CN204494366U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864743A (en) * | 2016-05-26 | 2016-08-17 | 清华大学 | Pollution discharge, water and energy saving, recovery and separation device and method of steam injection boiler |
| CN109469897A (en) * | 2018-12-26 | 2019-03-15 | 连云港正航电力节能技术有限公司 | A kind of boiler is even fixed to be arranged receipts energy system and receives energy method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20180310 |