CN204678312U - There is the boiler surfaces blowdown bootstrap system of measuring fixed amount utilization rate of waste heat - Google Patents
There is the boiler surfaces blowdown bootstrap system of measuring fixed amount utilization rate of waste heat Download PDFInfo
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- CN204678312U CN204678312U CN201520392446.3U CN201520392446U CN204678312U CN 204678312 U CN204678312 U CN 204678312U CN 201520392446 U CN201520392446 U CN 201520392446U CN 204678312 U CN204678312 U CN 204678312U
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- blowdown
- soft water
- outlet
- water tank
- heat exchanger
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- 239000002918 waste heat Substances 0.000 title claims abstract description 22
- 239000008234 soft water Substances 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000004064 recycling Methods 0.000 abstract description 8
- 239000010865 sewage Substances 0.000 abstract description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- 239000003345 natural gas Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 241000208125 Nicotiana Species 0.000 description 4
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000006392 deoxygenation reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019506 cigar Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002550 fecal effect Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002175 menstrual effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
A kind of boiler surfaces blowdown bootstrap system with measuring fixed amount utilization rate of waste heat, comprise soft water water tank (2), ion-exchanger (8), oxygen-eliminating device, described surface blow-off oral siphon (17) is in series with a coil heat exchanger (4), the outlet of this heat exchanger and blowdown outlet pipe (10) UNICOM, heat exchanger is placed in soft water water tank (2), the inlet surface blowdown oral siphon (17) of coil heat exchanger (4) is equipped with the second thermometer (16)) and flowmeter (15), the first thermometer (13) is equipped with in its outlet blowdown outlet pipe (10).Enter after spiral coil carries out thermal energy exchange with low temperature soft water from boiler through the sewage of 100 DEG C that surface blow-off expander is separated, its outlet water temperature reduces to 30 DEG C, the temperature difference reaches 70 DEG C, thereby reduce the steam consumption of oxygen-eliminating device, reach the object of waste heat recycling, by the measuring instrument of configuration, accurately utilization rate of waste heat can be calculated.
Description
Technical field
The utility model relates to boiler heat-transfer and heat-exchange system, particularly a kind of surface blow-off bootstrap system with measuring fixed amount utilization rate of waste heat for tobacco gas fired-boiler.
Background technology
The operations such as Yan Chang power houses gas fired-boiler is cigar mill's tobacco first baking, beating and double roasting, tobacco fermentation, moisture regain, baking silk, the mixing of cut tobacco stem, perfuming, reinforced, storage silk provide steam power.Boiler surfaces blowdown hot water temperature is at about 170 DEG C, and the hot water of discharge carries out after steam separation through continuous expansion tube, and steam enters softened water tank and heats to soft water, and the hot water of remaining 100 DEG C directly discharges, and does not carry out waste heat recycling, have lost a large amount of heat energy.So-called boiler surfaces blowdown also claims continuous blowdown, is called for short table row.This blowdown mode is automatic pollution discharge pattern, is exactly the data variation according to stove water conductivity, is continuously discharged by pot water maximum for salt alkali concn from drum pot water meter surface layer.Its effect reduces salt content, the alkalinity in boiler water, containing silicic acid amount and the fecal material content being in suspended state, stove water water quality is made to meet national standard, ensure that the clean of heating surface, meet qualified steam quality requirement, the service life extending boiler prevents boiler water concentration too high and affects steam quality.170 DEG C of steam sewage that boiler surfaces is discharged usually enter table row continuous blowdown tank and carry out steam separation, isolated steam enters softened water tank and heats to soft water, isolated 100 DEG C of sewage then directly discharge, this part high temperature sewage contains higher enthalpy, be not utilized, cause energy waste and pollute environment.
Utility model content
The utility model provides a kind of boiler surfaces blowdown bootstrap system with measuring fixed amount utilization rate of waste heat, and for making full use of waste heat and accurate-metering utilization rate of waste heat, nationality is to instruct boiler economic operation.
The described boiler surfaces blowdown bootstrap system with measuring fixed amount utilization rate of waste heat comprises soft water water tank, ion-exchanger, oxygen-eliminating device, surface blow-off expander, soft water delivery pump, thermometer, flowmeter, Pressure gauge and for the pipeline of UNICOM's aforementioned device and all kinds of valve, entrance and the Boiler Steam blow-off pipe of surface blow-off expander export UNICOM, its steam (vapor) outlet is connected with soft water water tank by expander steam pipe, its outlet of sewer is connected with surface blow-off oral siphon, the delivery port of ion-exchanger is connected with soft water water tank through new additional soft wa ter pipe, the delivery port of soft water water tank is through connecting soft water delivery pump thereon, by removing low level, heating power deaerator water tank pipeline, soft water is transported to oxygen-eliminating device, it is characterized in that: on described surface blow-off oral siphon, be in series with a coil heat exchanger, the outlet of coil heat exchanger and blowdown outlet pipe UNICOM, coil heat exchanger is placed in soft water water tank, the inlet surface blowdown oral siphon of coil heat exchanger is equipped with the second thermometer and flowmeter, its outlet blowdown outlet pipe is equipped with the first thermometer.
Owing to entering after spiral coil carries out heat energy displacement with low temperature soft water from boiler through the sewage of 100 DEG C that surface blow-off expander 11 is separated, its outlet water temperature reduces to 30 DEG C, the temperature difference reaches 70 DEG C, thereby reduce the steam consumption of oxygen-eliminating device, reach the object of surface blow-off waste heat recycling, and the measuring instrument by configuring, accurately can calculate utilization rate of waste heat, and boiler economic operation can be instructed by this, play effect that is energy-conservation, that reduce discharging, lower consumption.
Accompanying drawing explanation
Fig. 1 is the utility model system diagram.
In figure: 1--removes low level, heating power deaerator water tank pipeline, 2--soft water water tank, the 3--soft water water surface, 4--coil heat exchanger, 5--additional soft wa ter pipe, 6--expander steam pipe, 7--overflow pipe, 8--ion-exchanger, 9--ion-exchanger water inlet pipe, 10--blowdown outlet pipe, 11--surface blow-off expander, 12-remove blowdown cooling tank isocon, 13--first thermometer, 14-Boiler Steam blow-off pipe, 15-flowmeter, 16-the second thermometer, 17-surface blow-off oral siphon, 18-soft water delivery pump.
Detailed description of the invention
As shown in Figure 1.The boiler surfaces blowdown bootstrap system with measuring fixed amount utilization rate of waste heat comprises soft water water tank 2, ion-exchanger 8, oxygen-eliminating device, surface blow-off expander 11, soft water delivery pump 18, thermometer, flowmeter, Pressure gauge and for the pipeline of UNICOM's aforementioned device and all kinds of valve, entrance and the Boiler Steam blow-off pipe 14 of surface blow-off expander 11 export UNICOM, its steam (vapor) outlet is connected with soft water water tank 2 by expander steam pipe 6, its outlet of sewer is connected with surface blow-off oral siphon 17, the delivery port of ion-exchanger 8 is connected with soft water water tank 2 through new additional soft wa ter pipe 5, the delivery port of soft water water tank 2 is through connecting soft water delivery pump 18 thereon, by removing low level, heating power deaerator water tank pipeline 1, soft water is transported to oxygen-eliminating device, it is characterized in that: on described surface blow-off oral siphon 17, be in series with a coil heat exchanger 4, the outlet of coil heat exchanger and blowdown outlet pipe 10 UNICOM, coil heat exchanger 4 is placed in soft water water tank 2, the inlet surface blowdown oral siphon 17 of coil heat exchanger 4 is equipped with the second thermometer 16 and flowmeter 15, its outlet blowdown outlet pipe 10 is equipped with the first thermometer 13.
Described oxygen-eliminating device is for removing the container of oxygen in soft water.First boiler soft water enter oxygen-eliminating device, by steam, soft water is warmed to 102 DEG C of fluidized states, eliminates the oxygen in soft water thus.Mainly prevent the metal pipe-wall surface of the dissolved oxygen in boiler feedwater to boiler from forming oxygen corrosion, cause trommel, gas leakage leakage accident occurs.
The 170 DEG C of high steam hot water produced from gas fired-boiler surface blow-off enter surface blow-off expander 11 by Boiler Steam blow-off pipe 14, after carrying out step-down, are separated into steam and hot water in expand continuously device.Steam enters and enters soft water water tank 2 pairs of soft water heat by entering expander steam pipe 6,100 DEG C of hot water after blowdown is separated flow into coil heat exchanger 4 low temperature soft water by surface blow-off oral siphon 17 and carry out temperature exchange, improve soft water temperature, reach the object of waste heat recycling.Soft water needs to enter oxygen-eliminating device deoxygenation before entering boiler evaporating.Deoxygenation temperature, at about 105 DEG C, directly to be heated to soft water by saturated vapor and is formed.Soft water carries out preheating in advance to soft water in softened water tank, just can reduce the consumption of saturated vapor in oxygen-eliminating device, can reduce the consumption of natural gas thus, play energy-conservation effect.Soft water temperature is lower, is equal to tap water temperature, and carry out thermal energy exchange with the hot water of 100 DEG C, more can absorb waste heat, energy-saving effect is more remarkable.In device layout environmentally, softened water tank next-door neighbour surface blow-off expander, is convenient to scheme implementation, can prevents the long heat loss caused of pipeline.Fabrication and installation stainless steel spiral coil: for ease of installing, according to the size of softened water tank AD, having made and having stimulated the menstrual flow as DN30, screw diameter 400mm, the long spiral coil interchanger for 450mm is arranged on soft water water tank bottom.Consider salt in sewage, alkali number has certain corrosivity, the 316L stainless steel tube that we select corrosion resistance stronger on material, strengthen the security of spiral coil.In a pre-installation, we carry out pressure test with the hydraulic pressure of 1.6Mpa to spiral coil, guarantee the reliability of spiral coil.For ease of we have installed the first thermometer 13 at spiral coil import and export end to the analysis of heat exchange, in import, flowmeter 15, second thermometer 16 accurate-metering utilization rate of waste heat is installed, so that clearing and instruct boiler economic operation.By installing spiral coil in softened water tank indoor design, to the recycling of boiler table exhaust heat, we achieve good effect.The sewage of 100 DEG C enter spiral coil carry out heat energy displacement with low temperature soft water after outlet reduce to 30 DEG C, the temperature difference reaches 70 DEG C, thereby reduces the steam consumption of oxygen-eliminating device, reaches the object of surface blow-off waste heat recycling.
Economic budget:
By traffic statistics, the average monthly discharge of boiler surfaces blowdown is 652 tons.Spiral coil inlet temperature 100 DEG C, outlet temperature 30 DEG C, the temperature difference 70 DEG C.
1, heat Calculation
1 ton of water temperature rises the heat that 1 DEG C needs 1000 kilocalories, according to formula
Q＝D*(T2–T1)*1000
Wherein Q (kilocalorie) heat, D (ton) flow, T2 (DEG C) inlet temperature, T1 (DEG C) outlet temperature.
Data are substituted into formula obtain:
Q=652* (100-30) * 1000=45640000 kilocalorie
Obtain thus: after transformation, monthly can utilize waste heat 45640000 kilocalorie.
2, waste heat recycling calorie value Natural Gas Conversion amount
Table look-up and learn: the unit calorific value of natural gas is 8350 kilocalories/1M3, according to formulae discovery
V natural gas=Q/Q natural gas=45640000/8350=5465.9M3
It can thus be appreciated that: after transformation, monthly can save natural gas 5465.9M3
3, economic calculating
By the value 2.803 yuan calculating of 1M3 natural gas, can save every year
5465.9*2.803*12=183851.02 first
Added up by economic data, good energy-saving effect is achieved to the recycling of boiler surfaces blowdown waste heat.
Claims (1)
1. one kind has the boiler surfaces blowdown bootstrap system of measuring fixed amount utilization rate of waste heat, comprise soft water water tank (2), ion-exchanger (8), oxygen-eliminating device, surface blow-off expander (11), soft water delivery pump (18)), thermometer, flowmeter, Pressure gauge and for the pipeline of UNICOM's aforementioned device and all kinds of valve, entrance and the Boiler Steam blow-off pipe (14) of surface blow-off expander (11) export UNICOM, its steam (vapor) outlet is by expander steam pipe (6)) be connected with soft water water tank (2), its outlet of sewer is connected with surface blow-off oral siphon (17), the delivery port of ion-exchanger (8) is connected with soft water water tank (2) through new additional soft wa ter pipe (5), (delivery port of (2) is through connecting soft water delivery pump (18) thereon for soft water water tank, by removing low level, heating power deaerator water tank pipeline (10), soft water is transported to oxygen-eliminating device, it is characterized in that: on described surface blow-off oral siphon (17), be in series with a coil heat exchanger (4), the outlet of coil heat exchanger and blowdown outlet pipe (10) UNICOM, coil heat exchanger (4) is placed in soft water water tank (2), the inlet surface blowdown oral siphon (17) of coil heat exchanger (4) is equipped with the second thermometer (16)) and flowmeter (15), the first thermometer (13) is equipped with in its outlet blowdown outlet pipe (10).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520392446.3U CN204678312U (en) | 2015-06-09 | 2015-06-09 | There is the boiler surfaces blowdown bootstrap system of measuring fixed amount utilization rate of waste heat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520392446.3U CN204678312U (en) | 2015-06-09 | 2015-06-09 | There is the boiler surfaces blowdown bootstrap system of measuring fixed amount utilization rate of waste heat |
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| Publication Number | Publication Date |
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| CN204678312U true CN204678312U (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520392446.3U Active CN204678312U (en) | 2015-06-09 | 2015-06-09 | There is the boiler surfaces blowdown bootstrap system of measuring fixed amount utilization rate of waste heat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551220A (en) * | 2021-07-22 | 2021-10-26 | 广东鸿业建材科技有限公司 | Based on boiler waste heat recovery utilizes system |
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2015
- 2015-06-09 CN CN201520392446.3U patent/CN204678312U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551220A (en) * | 2021-07-22 | 2021-10-26 | 广东鸿业建材科技有限公司 | Based on boiler waste heat recovery utilizes system |
| CN113551220B (en) * | 2021-07-22 | 2022-04-01 | 广东鸿业建材科技有限公司 | Based on boiler waste heat recovery utilizes system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |