CN204005931U - Boiler blowdown water heat energy utilization system - Google Patents
Boiler blowdown water heat energy utilization system Download PDFInfo
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- CN204005931U CN204005931U CN201420355219.9U CN201420355219U CN204005931U CN 204005931 U CN204005931 U CN 204005931U CN 201420355219 U CN201420355219 U CN 201420355219U CN 204005931 U CN204005931 U CN 204005931U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 189
- 238000001816 cooling Methods 0.000 claims abstract description 147
- 239000010865 sewage Substances 0.000 claims abstract description 77
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 239000008234 soft water Substances 0.000 claims abstract description 18
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 15
- 238000007701 flash-distillation Methods 0.000 claims description 7
- 230000030279 gene silencing Effects 0.000 claims description 7
- 238000009792 diffusion process Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 239000008236 heating water Substances 0.000 abstract description 2
- 230000003020 moisturizing effect Effects 0.000 description 15
- 238000011001 backwashing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000006392 deoxygenation reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a kind of boiler blowdown water heat energy utilization system, comprise softening water station, boiler, flash tank, heat exchanger and cooling tank; Softening water station comprises water softener and water tank, and water softener connects water tank by soft water outlet pipe, and water softener is connected with backwash outlet pipe; Heat exchanger is connected with boiler heating pipe, cooling tank water inlet pipe, flash tank tube connector and radiator drain; Boiler connects boiler heating pipe and boiler water blow-down pipe; Flash drum overhead connects water tank by water tank connecting pipe, and the bottom of flash tank connects heat exchanger by flash tank tube connector; Cooling tank connects heat exchanger by cooling tank water inlet pipe, and cooling tank bottom is connected with cooling tank blow-off pipe, and cooling tank sidewall is connected with overflow pipe, and overflow pipe connects cesspool.The utility model makes the water inlet of boiler emission sewage heating boiler; Use the water in flash steam heating water tank, thereby both reduced the temperature of boiler emission sewage, again dual-heated the temperature of boiler feed water, saved the heat energy that boiler needs.
Description
Technical field
The utility model relates to boiler technology field, relates in particular to boiler blow-off water reuse.
Background technology
In boiler running process, along with becoming steam, surface moisture evaporation carries, boiler water salt surfactant concentration increases, pot water conductivity raises, be unfavorable for safe operation of the boiler, just must, by the water of the part boiler surfaces of draining, reduce or keep boiler water salt concentration, making water quality meet boiler operatiopn needs.
Boiler surfaces blowdown is to carry out automatic sewage drainage according to the size of boiler water electrical conductivity, boiler move for a long time or water quality poor, electrical conductivity reaches set point, blowdown motor-driven valve is opened, boiler starts blowdown.The sewage pressure of steam boiler is larger, and temperature is very high, at least more than 100 DEG C, effluent from boiler directly discharges, and not only wastes energy, and causes emission point environment temperature high, periphery produces a large amount of white water smoke, if directly can cause again great lot of water resources waste with running water cooling.
Summary of the invention
The purpose of this utility model is to provide one can reduce boiler blow-off coolant-temperature gage, at utmost saves the boiler blowdown water heat energy utilization system of the energy and cost simultaneously.
For achieving the above object, boiler blowdown water heat energy utilization system of the present utility model, is characterized in that: comprise softening water station, boiler, flash tank, heat exchanger and cooling tank; Taking the flow direction of fluid as forward direction;
Described softening water station comprises water softener and water tank, and water softener connects water tank by soft water outlet pipe, and water tank is connected with radiator drain and water tank connecting pipe; Water softener is connected with backwash outlet pipe;
Described heat exchanger is connected with boiler heating pipe, cooling tank water inlet pipe, flash tank tube connector and described radiator drain;
Described boiler connects described boiler heating pipe, and boiler connects described flash tank by boiler water blow-down pipe;
Described flash drum overhead connects described water tank by described water tank connecting pipe, and the bottom of flash tank connects heat exchanger by described flash tank tube connector;
Described cooling tank connects described heat exchanger by described cooling tank water inlet pipe, and cooling tank bottom is connected with cooling tank blow-off pipe, and cooling tank blow-off pipe is provided with cooling tank blowoff valve, and cooling tank blow-off pipe connects described cesspool, and cesspool is connected with bilge discharge pipe; Described cooling tank sidewall is connected with overflow pipe, and overflow pipe connects described cesspool;
The end that described boiler heating pipe closes on boiler is provided with boiler replenishing water valve, and the end that boiler heating pipe closes on heat exchanger is provided with hot soft water outlet valve; Described boiler water blow-down pipe is provided with boiler blow down valve;
The end that described water tank connecting pipe is closed on water tank is provided with check-valves, and the end that described water tank connecting pipe is closed on flash tank is provided with flash distillation steam valve;
On described flash tank tube connector, be provided with drain valve successively and heat is entered sewage valve along the flow direction of liquid;
Described cooling tank water inlet pipe be provided with cold go out sewage valve, described backwash outlet pipe is provided with soft sewage valve; Described radiator drain is provided with cold soft water water intaking valve.
The cooling tank sidepiece of described overflow pipe top is connected with running water water inlet pipe, and running water water inlet pipe is provided with running water temperature-sensing valve, in the cooling tank of overflow pipe junction, is provided with temperature sensor, and temperature sensor connects running water temperature-sensing valve.
Described cooling tank top is connected with exhaust stack, and exhaust stack is provided with diffusion valve;
Top one side of described flash tank is provided with safety valve, and safety valve is connected with described exhaust stack by diffusing tube connector.
Described backwash outlet pipe connects the middle and upper part of described cooling tank.
Between described radiator drain and boiler heating pipe, be connected with the first bypass pipe, the first bypass pipe is provided with the first by-passing valve.
The flash tank tube connector that described drain valve and heat are entered between sewage valve is connected with the second bypass pipe, and the second bypass pipe connects described cooling tank water inlet pipe, and the second bypass pipe is provided with the second by-passing valve;
Described cooling tank internal side wall is connected with dividing plate, and dividing plate bottom and cooling tank diapire are provided with gap, and dividing plate top is higher than the connecting portion of described cooling tank water inlet pipe and cooling tank and the connecting portion of backwash outlet pipe and cooling tank; The connecting portion of overflow pipe and cooling tank is positioned at dividing plate one side, and the connecting portion of the connecting portion of cooling tank water inlet pipe and cooling tank and backwash outlet pipe and cooling tank is positioned at dividing plate opposite side.
The connecting portion place of described water tank connecting pipe and water tank is provided with silencing means.
On described boiler heating pipe, be connected in series with oxygen-eliminating device.
When use, in the time that boiler 18 water conductivities exceed setting value, boiler blow down valve 1(is artificial or automatic by electric control gear control) open, the sewage of boiler 18 continuous blowdowns enters flash tank 19 through boiler blow down valve 1, HTHP sewage flashes off flash steam in flash tank 19, the water tank 23 li (flash steam enters water tank 23 places and preferably adds silencing means) that flash steam is transported to softening water station by flash distillation steam valve 16 and check-valves 11 successively along water tank connecting pipe 26 is used for thermoplastic water, give again the moisturizing of boiler 18, or by heat exchanger 20, cold water heating is used for having a bath, wash one's hands etc.
After sewage flash distillation in flash tank 19, still have quite high temperature, after the second by-passing valve 5 cuts out, enter sewage valve 4 in flash tank 19 bottoms by drain valve 33 and heat and enter heat exchanger 20 along flash tank tube connector 30.The moisturizing of boiler 18 is flowed out from the water tank 23 of softening water station, after the first by-passing valve 13 cuts out, enters heat exchanger 20 along radiator drain 25 through cold soft water water intaking valve 2.Hot soft water outlet valve 15 and boiler replenishing water valve 14 are passed through successively in the moisturizing of boiler 18 after the interior absorption sewerage heat energy of heat exchanger 20, flowing to boiler 18(demineralized water through boiler heating pipe 28 can be introduced into oxygen-eliminating device 42 deoxygenations before entering boiler 18 and enter boiler 18 again, that is to say, the oxygen-eliminating device 42 of preferably connecting on boiler heating pipe 28), thus promote boiler 18 inflow temperature, reduce the energy resource consumption of boiler 18.
Hot sewage is after the moisturizing of the interior preboiler 18 of heat exchanger 20, and its temperature is reduced and becomes low-temperature sewage; Low-temperature sewage flows out from heat exchanger 20, along cooling tank water inlet pipe 29 through cold go out sewage valve 12 enter cooling tank 21.In the time that the water level in cooling tank 21 reaches overflow pipe 7 connecting portions (overfall), the water in cooling tank 21 will enter outdoor sewage pond 34 by overflow pipe 7, and is further lowered the temperature in cesspool 34.
If heat exchanger 20 stops up or heat exchanger 20 needs repairing, respectively cold soft water water intaking valve 2 and hot soft water outlet valve 15 are closed, the first by-passing valve 13 is opened, thereby demineralized water just can be without heat exchanger 20, but directly entered after boiler heating pipe 28 to boiler 18 moisturizings by radiator drain 25.In this case, again heat is entered respectively sewage valve 4 and cold go out sewage valve 12 close, the second by-passing valve 5 is opened, and the sewage of flash tank 19 can be without heat exchanger 20 like this, but arranges into cooling tank 21 after directly entering cooling tank water inlet pipe 29 by the second bypass pipe 40.
Between the inherent water inlet of cooling tank 21 and overfall, vertically install semicircular described dividing plate 41 additional, dividing plate 41 height are higher than cooling tank water inlet pipe 29 and the connecting portion of cooling tank 21 and the connecting portion (i.e. this two places water inlet) of backwash outlet pipe 27 and cooling tank 21, cooling tank 21 lower middle portion are divided into two parts by dividing plate 41, dividing plate 41 bottoms are not connected with tank body, and the water of dividing plate 41 both sides is communicated with in dividing plate 41 bottoms.
Sewage accumulates in cooling tank 21 bottoms after entering cooling tank 21.If the moisturizing that boiler 18 needs is less or sewage instantaneous displacement is larger, the interior sewerage heat energy of heat exchanger 20 can not finely be absorbed by the moisturizing of boiler 18 (more), sewage temperature may be also very high, in this case just can be interior naturally cooling at cooling tank 21, and enter cesspool 34 through overflow pipe 7 after mixing with its bottom water at low temperature of accumulating in cooling tank 21.
When sewage quantity less, while being not continuous blow-down, the dividing plate 41 of cooling tank 21 act as: the intake high temperature sewage of a side of dividing plate 41 can be extruded the low-temperature sewage of opposite side (overflow one side) by overfall, high temperature sewage is temporarily stored in cooling tank 21, cooling naturally under lower environment temperature, in the time having new effluent stream to come, just can again discharge by overflow pipe 7, make the sewage being discharged by overflow pipe 7 there is lower temperature.
It is impure that heat exchanger 20 is used for the demineralized water of backwashing equipment, and salt concentration is high, and temperature is normal temperature, generally directly enters trench, thereby wasted the lower temperature of backwashing water.
In the technical solution of the utility model, the sewage after softening water station backwash is entered to cooling tank 21 through backwash outlet pipe 27 and soft sewage valve 10, the sewage of discharging with boiler 18 mixes, thereby plays the effect of the temperature that again reduces boiler 18 effluent sewerages.
Adopt the technical solution of the utility model, by heat exchanger, make the water inlet of boiler emission sewage heating boiler; By the water in the flash steam heating water tank of flash tank (preparing to enter the water of boiler), thereby both reduced the temperature of boiler emission sewage, again dual-heated the temperature of boiler feed water, saved the heat energy that boiler needs, kill two birds with one stone.
The pipeline of exhaust stack is often longer, and safety valve is connected with described exhaust stack by diffusing tube connector, can make two equipment of flash tank and cooling tank share a set of exhaust stack, saves equipment investment, simplifies pipe laying, meets emissions requirements.
The dependency structures such as cooling tank internal partition, can make to enter the sewage that in cooling tank, temperature is relatively high can not go out in horse back overflow, but first by having deposited a period of time and extruded through the lower sewage of temperature after cooling naturally of overflow one side, thereby further reduce the temperature of cooling tank institute effluent sewerage.The setting of running water water inlet pipe, running water temperature-sensing valve etc., when can moisturizing large in boiler blow-off amount or that boiler needs less, force to reduce sewage temperature by introducing running water, thereby absolutely avoid the higher situation of sewage temperature of discharge, avoid the situation that causes emission point environment temperature high.The setting of first, second bypass pipe, is convenient to maintenance or dredging heat exchanger.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of cooling tank;
Fig. 3 is the schematic top plan view of removing Fig. 2 after connecting line;
Fig. 4 removes a left side of Fig. 2 after connecting line to look schematic diagram.
Detailed description of the invention
In Fig. 1, direction shown in arrow is the flow direction of fluid (water or steam).
As shown in Figures 1 to 4, boiler blowdown water heat energy utilization system of the present utility model comprises softening water station, boiler 18, flash tank 19, heat exchanger 20 and cooling tank 21; Taking the flow direction of fluid (water or steam) as forward direction.
Described softening water station comprises water softener 22 and water tank 23, and water softener 22 connects water tank 23 by soft water outlet pipe 24, and water tank 23 is connected with radiator drain 25 and water tank connecting pipe 26; Water softener 22 is connected with backwash outlet pipe 27.
Described heat exchanger 20 is connected with boiler heating pipe 28, cooling tank water inlet pipe 29, flash tank tube connector 30 and described radiator drain 25.
The water inlet of described boiler 18 connects described boiler heating pipe 28, and boiler 18 connects described flash tank 19 by boiler water blow-down pipe 31.
Described flash tank 19 tops connect described water tank 23 by described water tank connecting pipe 26, and the bottom of flash tank 19 connects heat exchanger 20 by described flash tank tube connector 30.
Described cooling tank 21 connects described heat exchanger 20 by described cooling tank water inlet pipe 29, cooling tank 21 bottoms are connected with cooling tank blow-off pipe 32, cooling tank blow-off pipe 32 is provided with cooling tank blowoff valve 6, cooling tank blow-off pipe 32 connects described cesspool 34, cesspool 34 is connected with bilge discharge pipe 33, and bilge discharge pipe 33 can connect external sewage plant.Described cooling tank 21 sidewalls are connected with overflow pipe 7, and overflow pipe 7 connects described cesspool 34.
The end that described boiler heating pipe 28 closes on boiler 18 is provided with boiler replenishing water valve 14, and the end that boiler heating pipe 28 closes on heat exchanger 20 is provided with hot soft water outlet valve 15; Described boiler water blow-down pipe 31 is provided with boiler blow down valve 1.
The end that described water tank connecting pipe 26 is closed on water tank 23 is provided with check-valves 11, and the end that described water tank connecting pipe 26 is closed on flash tank 19 is provided with flash distillation steam valve 16.
On described flash tank tube connector 30, be provided with successively drain valve 3 and heat is entered sewage valve 4 along the flow direction of liquid.
Described cooling tank water inlet pipe 29 be provided with cold go out sewage valve 12, described backwash outlet pipe 27 is provided with soft sewage valve 10.Described radiator drain 25 is provided with cold soft water water intaking valve 2.
Cooling tank 21 sidepieces of described overflow pipe 7 tops are connected with running water water inlet pipe 35, and running water water inlet pipe 35 is provided with running water temperature-sensing valve 8, in the cooling tank 21 of overflow pipe 7 junctions, are provided with temperature sensor 36, and temperature sensor 36 connects running water temperature-sensing valve 8.Also can make temperature sensor 36 first connect an electric control gear, as PLC, single-chip microcomputer, integrated circuit etc., then make electric control gear connect running water temperature-sensing valve 8.Electric control gear is existing routine techniques, and figure does not show.
Described cooling tank 21 tops are connected with exhaust stack 37, and exhaust stack 37 is provided with diffusion valve 9; Top one side of described flash tank 19 is provided with safety valve 17, and safety valve 17 is connected with described exhaust stack 37 by diffusing tube connector 38.The pipeline of exhaust stack 37 is often longer, and safety valve 17 is connected with described exhaust stack 37 by diffusing tube connector 38, can make flash tank 19 and 21 two equipment of cooling tank share a set of exhaust stack 37, saves equipment investment, simplifies pipe laying, meets emissions requirements.
Described backwash outlet pipe 27 connects the middle and upper part of described cooling tank 21.Between described radiator drain 25 and boiler heating pipe 28, be connected with the first bypass pipe 39, the first bypass pipes 39 and be provided with the first by-passing valve 13.
Described drain valve 3 and heat are entered flash tank tube connector 30 between sewage valve 4 and are connected with the second bypass pipe 40, the second bypass pipes 40 and connect described cooling tank water inlet pipe 29, the second bypass pipes 40 and be provided with the second by-passing valve 5.
Described cooling tank 21 internal side wall are connected with dividing plate 41, and dividing plate 41 bottoms and cooling tank 21 diapires are provided with gap, and dividing plate 41 tops are higher than described cooling tank water inlet pipe 29 and the connecting portion of cooling tank 21 and the connecting portion of backwash outlet pipe 27 and cooling tank 21; Overflow pipe 7 is positioned at dividing plate 41 1 sides with the connecting portion of cooling tank 21, and cooling tank water inlet pipe 29 is positioned at dividing plate 41 opposite sides with connecting portion and the backwash outlet pipe 27 of cooling tank 21 with the connecting portion of cooling tank 21.
Described water tank connecting pipe 26 is provided with silencing means with the connecting portion place of water tank 23.Silencing means is existing routine techniques, and figure does not show.On described boiler heating pipe 28, be connected in series with oxygen-eliminating device 42.
Wherein, described water softener 22, water tank 23, flash tank 19, oxygen-eliminating device, silencing means and heat exchanger 20 etc. are existing routine techniques, and its concrete structure no longer describes in detail.Described boiler blow down valve 1 preferably adopts boiler 18 automatic pollution discharge magnetic valves (can adopt various existing magnetic valves), a pot water conductivity checkout gear is set (this checkout gear is prior art boiler 18 is interior, figure does not show), this checkout gear connects described electric control gear, electric control gear control connection boiler 18 automatic pollution discharge magnetic valves.Certainly, boiler blow down valve 1 also can adopt manual blowdown valve, and by manual operation.
On described flash tank 19 and cooling tank 21, Pressure gauge, thermometer, liquid level gauge are all installed, on described cooling tank 21, safety valve are installed.Above-mentioned parts are this area conventional components, and figure does not show.
When use, in the time that boiler 18 water conductivities exceed setting value, boiler blow down valve 1(is artificial or automatic by electric control gear control) open, the sewage of boiler 18 continuous blowdowns enters flash tank 19 through boiler blow down valve 1, HTHP sewage flashes off flash steam in flash tank 19, the water tank 23 li (flash steam enters water tank 23 places and preferably adds silencing means) that flash steam is transported to softening water station by flash distillation steam valve 16 and check-valves 11 successively along water tank connecting pipe 26 is used for thermoplastic water, give again the moisturizing of boiler 18, or by heat exchanger 20, cold water heating is used for having a bath, wash one's hands etc.
After sewage flash distillation in flash tank 19, still have quite high temperature, after the second by-passing valve 5 cuts out, enter sewage valve 4 in flash tank 19 bottoms by drain valve 33 and heat and enter heat exchanger 20 along flash tank tube connector 30.The moisturizing of boiler 18 is flowed out from the water tank 23 of softening water station, after the first by-passing valve 13 cuts out, enters heat exchanger 20 along radiator drain 25 through cold soft water water intaking valve 2.Hot soft water outlet valve 15 and boiler replenishing water valve 14 are passed through successively in the moisturizing of boiler 18 after the interior absorption sewerage heat energy of heat exchanger 20, flowing to boiler 18(demineralized water through boiler heating pipe 28 can be introduced into oxygen-eliminating device 42 deoxygenations before entering boiler 18 and enter boiler 18 again, that is to say, the oxygen-eliminating device 42 of preferably connecting on boiler heating pipe 28), thus promote boiler 18 inflow temperature, reduce the energy resource consumption of boiler 18.
Hot sewage is after the moisturizing of the interior preboiler 18 of heat exchanger 20, and its temperature is reduced and becomes low-temperature sewage; Low-temperature sewage flows out from heat exchanger 20, along cooling tank water inlet pipe 29 through cold go out sewage valve 12 enter cooling tank 21.In the time that the water level in cooling tank 21 reaches overflow pipe 7 connecting portions (overfall), the water in cooling tank 21 will enter outdoor sewage pond 34 by overflow pipe 7, and is further lowered the temperature in cesspool 34.
If heat exchanger 20 stops up or heat exchanger 20 needs repairing, respectively cold soft water water intaking valve 2 and hot soft water outlet valve 15 are closed, the first by-passing valve 13 is opened, thereby demineralized water just can be without heat exchanger 20, but directly entered after boiler heating pipe 28 to boiler 18 moisturizings by radiator drain 25.In this case, again heat is entered respectively sewage valve 4 and cold go out sewage valve 12 close, the second by-passing valve 5 is opened, and the sewage of flash tank 19 can be without heat exchanger 20 like this, but arranges into cooling tank 21 after directly entering cooling tank water inlet pipe 29 by the second bypass pipe 40.
Between the inherent water inlet of cooling tank 21 and overfall, vertically install semicircular described dividing plate 41 additional, dividing plate 41 height are higher than cooling tank water inlet pipe 29 and the connecting portion of cooling tank 21 and the connecting portion (i.e. this two places water inlet) of backwash outlet pipe 27 and cooling tank 21, cooling tank 21 lower middle portion are divided into two parts by dividing plate 41, dividing plate 41 bottoms are not connected with tank body, and the water of dividing plate 41 both sides is communicated with in dividing plate 41 bottoms.
Sewage accumulates in cooling tank 21 bottoms after entering cooling tank 21.If the moisturizing that boiler 18 needs is less or sewage instantaneous displacement is larger, the interior sewerage heat energy of heat exchanger 20 can not finely be absorbed by the moisturizing of boiler 18 (more), sewage temperature may be also very high, in this case just can be interior naturally cooling at cooling tank 21, and enter cesspool 34 through overflow pipe 7 after mixing with its bottom water at low temperature of accumulating in cooling tank 21.
When sewage quantity less, while being not continuous blow-down, the dividing plate 41 of cooling tank 21 act as: the intake high temperature sewage of a side of dividing plate 41 can be extruded the low-temperature sewage of opposite side (overflow one side) by overfall, high temperature sewage is temporarily stored in cooling tank 21, cooling naturally under lower environment temperature, in the time having new effluent stream to come, just can again discharge by overflow pipe 7, make the sewage being discharged by overflow pipe 7 there is lower temperature.
It is impure that heat exchanger 20 is used for the demineralized water of backwashing equipment, and salt concentration is high, and temperature is normal temperature, generally directly enters trench, thereby wasted the lower temperature of backwashing water.
In the technical solution of the utility model, the sewage after softening water station backwash is entered to cooling tank 21 through backwash outlet pipe 27 and soft sewage valve 10, the sewage of discharging with boiler 18 mixes, thereby plays the effect of the temperature that again reduces boiler 18 effluent sewerages.
Even if the sewage temperature through heat exchanger 20 is still higher, the cool sewage of backwash that softening water station is discharged is also less, in cooling tank 21 overflow one sides, a running water temperature-sensing valve 8 is installed, and a temperature sensor 36 is installed on tank body.When use, running water water inlet pipe 35 is connected with external water source from the beginning (as running water tap).In the time that overflow pipe 7 import department's temperature are still higher (this triggers temperature and can set by running water temperature-sensing valve 8 or connected electric control gear), running water temperature-sensing valve 8 is opened automatically, reaches thereby pass into running water at cooling tank 21 overfall places the object that reduces sewage temperature; After sewage after cooling, enter cesspool 34.Cesspool 34 can be again by nature cooling or with the mode of other outdoor sewage combination cooling, what boiler 18 sewage temperatures were fallen is lower, then sewage can be sent to sewage plant processing.
A cooling tank blowoff valve 6 is installed on the blow-off pipe of cooling tank 21 bottoms, and the cooling tank blowoff valve 6 of cooling tank 21 tank base cuts out at ordinary times, after a period of time, can open bottom cooling tank blowoff valve 6 dirt precipitating in tank body is directly drained.Cooling tank 21 tops are provided with a diffusion valve 9, and the exhaust stack 37 being connected with diffusion valve 9 leads to outdoor, and pressure and atmospheric pressure in can balance cooling tank tank body, be conducive to draining, and can play cooling effect.
The annexes such as flash tank 19, cooling tank 21 all can also mounting safety valves, Pressure gauge, thermometer, liquid level gauge.And the exhaust stack of flash tank 19 is preferably as diffusing exhaust stack 37 UNICOMs of tube connector 38 with cooling tank 21, and exhaust stack 37 diameters are enough large, diffuse demand as long as meet, and just can share exhaust stack 37 steam discharges, save equipment investment, simplified apparatus installation process.
Above embodiment is the unrestricted the technical solution of the utility model in order to explanation only, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the art is to be understood that: still can modify or be equal to replacement the utility model, and not departing from any modification or partial replacement of spirit and scope of the present utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (8)
1. boiler blowdown water heat energy utilization system, is characterized in that: comprise softening water station, boiler, flash tank, heat exchanger and cooling tank; Taking the flow direction of fluid as forward direction;
Described softening water station comprises water softener and water tank, and water softener connects water tank by soft water outlet pipe, and water tank is connected with radiator drain and water tank connecting pipe; Water softener is connected with backwash outlet pipe;
Described heat exchanger is connected with boiler heating pipe, cooling tank water inlet pipe, flash tank tube connector and described radiator drain;
Described boiler connects described boiler heating pipe, and boiler connects described flash tank by boiler water blow-down pipe;
Described flash drum overhead connects described water tank by described water tank connecting pipe, and the bottom of flash tank connects heat exchanger by described flash tank tube connector;
Described cooling tank connects described heat exchanger by described cooling tank water inlet pipe, and cooling tank bottom is connected with cooling tank blow-off pipe, and cooling tank blow-off pipe is provided with cooling tank blowoff valve, and cooling tank blow-off pipe connects described cesspool, and cesspool is connected with bilge discharge pipe; Described cooling tank sidewall is connected with overflow pipe, and overflow pipe connects described cesspool;
The end that described boiler heating pipe closes on boiler is provided with boiler replenishing water valve, and the end that boiler heating pipe closes on heat exchanger is provided with hot soft water outlet valve; Described boiler water blow-down pipe is provided with boiler blow down valve;
The end that described water tank connecting pipe is closed on water tank is provided with check-valves, and the end that described water tank connecting pipe is closed on flash tank is provided with flash distillation steam valve;
On described flash tank tube connector, be provided with drain valve successively and heat is entered sewage valve along the flow direction of liquid;
Described cooling tank water inlet pipe be provided with cold go out sewage valve, described backwash outlet pipe is provided with soft sewage valve; Described radiator drain is provided with cold soft water water intaking valve.
2. boiler blowdown water heat energy utilization system according to claim 1, it is characterized in that: the cooling tank sidepiece of described overflow pipe top is connected with running water water inlet pipe, running water water inlet pipe is provided with running water temperature-sensing valve, in the cooling tank of overflow pipe junction, be provided with temperature sensor, temperature sensor connects running water temperature-sensing valve.
3. boiler blowdown water heat energy utilization system according to claim 1, is characterized in that: described cooling tank top is connected with exhaust stack, and exhaust stack is provided with diffusion valve;
Top one side of described flash tank is provided with safety valve, and safety valve is connected with described exhaust stack by diffusing tube connector.
4. boiler blowdown water heat energy utilization system according to claim 1, is characterized in that: described backwash outlet pipe connects the middle and upper part of described cooling tank.
5. according to the boiler blowdown water heat energy utilization system described in any one in claim 1 to 4, it is characterized in that:
Between described radiator drain and boiler heating pipe, be connected with the first bypass pipe, the first bypass pipe is provided with the first by-passing valve;
The flash tank tube connector that described drain valve and heat are entered between sewage valve is connected with the second bypass pipe, and the second bypass pipe connects described cooling tank water inlet pipe, and the second bypass pipe is provided with the second by-passing valve.
6. according to the boiler blowdown water heat energy utilization system described in any one in claim 1 to 4, it is characterized in that: described cooling tank internal side wall is connected with dividing plate, dividing plate bottom and cooling tank diapire are provided with gap, and dividing plate top is higher than the connecting portion of described cooling tank water inlet pipe and cooling tank and the connecting portion of backwash outlet pipe and cooling tank; The connecting portion of overflow pipe and cooling tank is positioned at dividing plate one side, and the connecting portion of the connecting portion of cooling tank water inlet pipe and cooling tank and backwash outlet pipe and cooling tank is positioned at dividing plate opposite side.
7. according to the boiler blowdown water heat energy utilization system described in any one in claim 1 to 4, it is characterized in that: the connecting portion place of described water tank connecting pipe and water tank is provided with silencing means.
8. according to the boiler blowdown water heat energy utilization system described in any one in claim 1 to 4, it is characterized in that: on described boiler heating pipe, be connected in series with oxygen-eliminating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420355219.9U CN204005931U (en) | 2014-06-30 | 2014-06-30 | Boiler blowdown water heat energy utilization system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420355219.9U CN204005931U (en) | 2014-06-30 | 2014-06-30 | Boiler blowdown water heat energy utilization system |
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| CN204005931U true CN204005931U (en) | 2014-12-10 |
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| CN201420355219.9U Expired - Lifetime CN204005931U (en) | 2014-06-30 | 2014-06-30 | Boiler blowdown water heat energy utilization system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033880A (en) * | 2014-06-30 | 2014-09-10 | 河南中烟工业有限责任公司 | Boiler blow-down water heat energy utilization system |
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2014
- 2014-06-30 CN CN201420355219.9U patent/CN204005931U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033880A (en) * | 2014-06-30 | 2014-09-10 | 河南中烟工业有限责任公司 | Boiler blow-down water heat energy utilization system |
| CN104033880B (en) * | 2014-06-30 | 2016-01-20 | 河南中烟工业有限责任公司 | Boiler blowdown water heat energy utilization system |
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Address after: 450000 Yulin South Road, Henan, Zheng Dong, No. 16 South Road, Zhengzhou Patentee after: China Tobacco Henan Industrial Co., Ltd. Address before: 450000 Zhengzhou agricultural road, Henan, No. 29 Patentee before: China Tobacco Henan Industrial Co., Ltd. |