CN211781024U - Boiler flue gas condensate water recycling device - Google Patents

Abstract

The utility model relates to a warm technical field that leads to is a boiler flue gas comdenstion water recycle device, including boiler, chimney, condenser, one-level energy-saving appliance, condensate water tank, a net water tank and water treatment facilities, the hollow tube that the condenser is thin and the level in middle thick both sides sets up, is in the same place through the fixed intercommunication of condenser between the gas vent of boiler and the air inlet of chimney. The utility model has the advantages of reasonable and compact structure, simple manufacture, through setting up the one-level energy-saving appliance, can collect the comdenstion water tank with the moisture content in the high temperature flue gas that the boiler discharged, through setting up the condenser, can improve the recovery efficiency of moisture in the high temperature flue gas, during the comdenstion water reinjection pipe network in the comdenstion water tank, replenish the water yield loss in the pipe network, improve the comdenstion water and in recycle ratio, through setting up water treatment facilities, can with in the comdenstion water with to neutral, avoid in the comdenstion water to cause stronger corruption to the pipeline, reduce the maintenance cost.

Description

Boiler flue gas condensate water recycling device

Technical Field

The utility model relates to a warm technical field that leads to is a boiler flue gas comdenstion water recycle device.

Background

The boiler obtains the wide application at present in urban heating system, gas boiler with natural gas as main fuel can form a large amount of flue gas condensate water in the use, most heat supply stations have installed flue gas waste heat utilization equipment's condensate water at present, because harmful gas makes boiler flue gas condensate water have acidity after dissolving in aqueous, make the condensate water lead to the fact stronger corruption to the pipeline, long-term operation can make the heat supply pipe network have the potential safety hazard, the boiler flue gas condensate water of retrieving simultaneously contains a large amount of impurity, especially, the iron impurity is more, after the heat supply pipe network long-term operation, the thermal efficiency of impurity reduction boiler behind the pipeline inner wall scale deposit, the maintenance cost of increase running cost.

The present heat supply pipe network quality of water treatment facilities is to softening and the reuse inefficiency of comdenstion water, and the comdenstion water yield of retrieving is few, can not satisfy to supply sufficient water volume in the pipe network water tank at normal operating in-process, greatly reduced the thermal efficiency of boiler, increased the running cost.

Disclosure of Invention

The utility model provides a boiler flue gas comdenstion water recycle device has overcome above-mentioned prior art not enough, and it can effectively solve the problem that the comdenstion water recycle rate that exists is low, the maintenance cost is high among the current boiler flue gas recovery device.

The technical scheme of the utility model is realized through following measure: a boiler flue gas condensate water recycling device comprises a boiler, a chimney, a condenser, a primary energy saver, a condensate water tank, a one-network water tank and a water treatment device, wherein the condenser is a hollow pipe with thick middle and thin two sides and is horizontally arranged, an exhaust port of the boiler is fixedly communicated with an air inlet of the chimney through the condenser, the inner side of the middle part of the condenser is fixedly provided with the primary energy saver, an air inlet of the primary energy saver corresponds to an exhaust port of the boiler, an exhaust port of the primary energy saver corresponds to an air inlet of the chimney, a condensate water collecting port communicated with the inside and the outside is arranged at the bottom side of the middle part of the condenser corresponding to the exhaust port of the primary energy saver, the lower part of the condenser is provided with the condensate water tank, the top of the condensate water tank is provided with a first water inlet, a condensate water collecting pipeline is fixedly communicated between the first water, The water treatment device for removing iron and oxygen and removing iron and oxygen from tap water are fixedly communicated together.

The following are further optimization or/and improvement of the technical scheme of the utility model:

the water treatment device can comprise an alkali barrel, an iron removing tank, a deaerating tank, a water softener, a salt tank, a two-net water tank, a dosing pump and a pressure pump, wherein a second water inlet is arranged at the top of the condensed water tank, a first dosing pipeline is fixedly communicated between the second water inlet and an outlet of the dosing pump, a second dosing pipeline is fixedly communicated between an inlet of the dosing pump and an outlet of the alkali barrel, a first outlet is arranged at the lower part of the condensed water tank, a first pipeline is fixedly communicated between the first outlet and an inlet of the pressure pump, a second pipeline is fixedly communicated between an outlet of the pressure pump and an inlet of the iron removing tank, a third pipeline is fixedly communicated between an outlet of the iron removing tank and an inlet of the deaerating tank, a fourth pipeline is fixedly communicated between an outlet of the deaerating tank and an inlet of the one-net water tank, a fifth pipeline is fixedly communicated between the fourth pipeline and an inlet of the two-net water tank, a machine head is arranged at the top of the water softener, a sixth pipeline is fixedly communicated between the outlet of the machine head and the third pipeline, a salt absorption pipeline is fixedly communicated between the salt absorption port of the machine head and the salt outlet of the salt box, and a sewage discharge pipeline is fixedly communicated with the sewage discharge port of the machine head.

A first reverse drainage pipeline can be fixedly communicated with the second pipeline, a first reverse drainage valve is arranged on the first reverse drainage pipeline, a first forward washing valve is arranged on the second pipeline corresponding to the position between the first reverse drainage pipeline and the inlet of the pressurizing pump, and a first forward washing pressure gauge is arranged on the second pipeline corresponding to the position between the first reverse drainage pipeline and the inlet of the iron removing tank; a first backwashing pipeline is fixedly communicated between the water supply pipeline and a third pipeline at a position between the sixth pipeline and an outlet of the iron removing tank, a first positive discharge pipeline is fixedly communicated on the first backwashing pipeline, a first positive discharge valve is arranged on the first positive discharge pipeline, a first backwashing valve is arranged on the first backwashing pipeline corresponding to a position between the first positive discharge pipeline and the water supply pipeline, a first backwashing pressure gauge is arranged on the first backwashing pipeline corresponding to a position between the first positive discharge pipeline and the third pipeline, and an iron removing water outlet valve is arranged on the third pipeline corresponding to a position between the first backwashing pipeline and the sixth pipeline; a second reverse drainage pipeline is fixedly communicated with the third pipeline corresponding to the position between the sixth pipeline and the inlet of the deaerating tank, a second reverse drainage valve is arranged on the second reverse drainage pipeline, a second forward washing valve is arranged on the third pipeline corresponding to the position between the second reverse drainage pipeline and the sixth pipeline, and a second forward washing pressure gauge is arranged on the third pipeline corresponding to the position between the second reverse drainage pipeline and the inlet of the deaerating tank; a second backwashing pipeline is fixedly communicated between the first backwashing pipeline corresponding to the position between the first backwashing valve and the water supply pipeline and the fourth pipeline, a second positive row pipeline is fixedly communicated on the second backwashing pipeline, a second positive row valve is arranged on the second positive row pipeline, a second backwashing valve is arranged on the second backwashing pipeline corresponding to the position between the second positive row pipeline and the first backwashing pipeline, a second backwashing pressure gauge is arranged on the second backwashing pipeline corresponding to the position between the second positive row pipeline and the fourth pipeline, and a deoxidizing water outlet valve is arranged on the fourth pipeline corresponding to the position between the second backwashing pipeline and the inlet of the water tank.

The water treatment device can also comprise a precipitation water tank, the precipitation water tank is arranged below the condensed water tank, a seventh pipeline is fixedly communicated between the first outlet and the inlet at the top of the precipitation water tank, a second outlet is arranged at the lower part of the precipitation water tank, and the second outlet is fixedly communicated with the inlet of the booster pump through the first pipeline.

The outside of the condensed water tank can be provided with a self-circulating pump, a first circulating pipeline is fixedly communicated between the seventh pipeline and the inlet of the self-circulating pump, a second circulating pipeline is fixedly communicated between the outlet of the self-circulating pump and the first dosing pipeline, a first circulating valve is arranged on the seventh pipeline corresponding to the position between the first circulating pipeline and the inlet at the top of the sedimentation water tank, a second circulating valve is arranged on the first circulating pipeline corresponding to the position between the seventh pipeline and the inlet of the self-circulating pump, and a third circulating valve is arranged on the first dosing pipeline corresponding to the position between the second circulating pipeline and the outlet of the self-circulating pump.

And a secondary energy saver can be fixedly arranged in the condenser corresponding to the position between the exhaust port of the primary energy saver and the air inlet of the chimney, the air inlet of the secondary energy saver corresponds to the exhaust port of the primary energy saver, and the exhaust port of the secondary energy saver corresponds to the air inlet of the chimney.

The water circulation device can further comprise a water circulation device, the water circulation device comprises a heat exchanger, a primary water pump, a secondary water pump and a water replenishing pump, a water supply main pipe is fixedly communicated between a water outlet of the boiler and a primary side water inlet of the heat exchanger, a water return main pipe is fixedly communicated between a primary side water outlet of the heat exchanger and a water inlet of the primary water pump, a secondary water inlet and a secondary water outlet are arranged on the secondary energy saver, a first communicating hole and a second communicating hole which are communicated with the inside and the outside are respectively arranged on a condenser corresponding to the positions of the secondary water inlet and the secondary water outlet, a first water return pipeline is fixedly arranged in the first communicating hole, a second water return pipeline is fixedly arranged in the second communicating hole, and; the primary economizer is provided with a primary water inlet and a primary water outlet, a condenser corresponding to the primary water inlet and the primary water outlet is respectively provided with a third communicating hole and a fourth communicating hole which are communicated with the inside and the outside, a third water return pipeline is fixedly arranged in the third communicating hole, and a fourth water return pipeline is fixedly arranged in the fourth communicating hole; fixed intercommunication through the third return water pipeline between first return water pipeline and the one-level water inlet is in the same place, through the fixed intercommunication of fourth return water pipeline between the import of one-level delivery port and second grade water pump together, through the fixed intercommunication of second return water pipeline between fourth return water pipeline and the second grade delivery port together, fixed intercommunication has fifth return water pipeline between the water inlet of export of second grade water pump and boiler, it has the pressure-equalizing pipe to fix the intercommunication between water supply main and the return water house steward, be equipped with the pressure-equalizing valve on the pressure-equalizing pipe, it has first moisturizing pipeline to correspond to fix the intercommunication between the return water house steward of position between pressure-equalizing pipe and the import of one-level water pump and the export of moisturizing pump, it has second moisturizing pipeline to fix the intercommunication between the.

The utility model has the advantages of reasonable and compact structure, simple manufacture, through setting up the one-level energy-saving appliance, can collect the comdenstion water tank with the moisture content in the high temperature flue gas that the boiler discharged, through setting up the condenser, can improve the recovery efficiency of moisture in the high temperature flue gas, during the comdenstion water reinjection pipe network in the comdenstion water tank, replenish the water yield loss in the pipe network, improve the comdenstion water and in recycle ratio, through setting up water treatment facilities, can with in the comdenstion water with to neutral, avoid in the comdenstion water to cause stronger corruption to the pipeline, reduce the maintenance cost.

Drawings

Fig. 1 is a schematic diagram of the process flow structure of the preferred embodiment of the present invention.

Fig. 2 is a block diagram of a circuit configuration.

The codes in the figures are respectively: 1 is a condensed water tank, 2 is an alkali barrel, 3 is an iron removing tank, 4 is a deaerating tank, 5 is a first chemical adding pipeline, 6 is a chemical adding pump, 7 is a pressure pump, 8 is a second chemical adding pipeline, 9 is a first pipeline, 10 is a second pipeline, 11 is a third pipeline, 12 is a fourth pipeline, 13 is a salt absorbing pipeline, 14 is a first backwashing pipeline, 15 is a first positive discharge pipeline, 16 is a first reverse discharge pipeline, 17 is a fifth pipeline, 18 is a sewage discharge pipeline, 19 is a second backwashing pipeline, 20 is a second positive discharge pipeline, 21 is a second reverse discharge pipeline, 22 is a sixth pipeline, 23 is a first controller, 24 is a second controller, 25 is a settling water tank, 26 is a seventh pipeline, 27 is a self-circulating pump, 28 is a first circulating pipeline, 29 is a second circulating pipeline, 30 is a first circulating valve, 31 is a second circulating valve, 33 is a third circulating valve, and 34 is a first positive circulating valve, 35 is a first forward washing pressure gauge, 36 is a first backwash valve, 37 is a first backwash pressure gauge, 38 is a first forward discharge valve, 39 is a first reverse discharge valve, 40 is an iron removal outlet valve, 41 is a second forward washing valve, 42 is a second forward washing pressure gauge, 43 is a second backwash valve, 44 is a second backwash pressure gauge, 45 is a second forward discharge valve, 46 is a second reverse discharge valve, 47 is an oxygen removal outlet valve, 48 is a net water tank, 49 is a two net water tank, 50 is a water softener, 51 is a salt tank, 52 is a head, 53 is a water supply pipe, 54 is a boiler, 55 is a chimney, 56 is a condenser, 57 is a primary economizer, 58 is a condensate collecting pipe, 59 is a secondary economizer, 60 is a heat exchanger, 61 is a primary water pump, 62 is a water supply header, 63 is a water return header, 64 is a first water return pipe, 65 is a second water return pipe, 66 is a third water return pipe, 67 is a fourth water return pipe, 68 is a secondary water pump, 69 is a fifth water return pipeline, 70 is a pressure equalizing pipeline, 71 is a pressure equalizing valve, 72 is a water replenishing pump, 73 is a first water replenishing pipeline, and 74 is a second water replenishing pipeline.

Detailed Description

The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.

In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.

The invention will be further described with reference to the following examples and drawings:

as shown in the attached figures 1 and 2, the boiler flue gas condensate recycling device comprises a boiler 54, a chimney 55, a condenser 56, a primary economizer 57, a condensate water tank 1, a one-network water tank 48 and a water treatment device, wherein the condenser 56 is a hollow pipe with a thick middle part and two thin sides and is horizontally arranged, an exhaust port of the boiler 54 is fixedly communicated with an air inlet of the chimney 55 through the condenser 56, the primary economizer 57 is fixedly arranged on the inner side of the middle part of the condenser 56, the air inlet of the primary economizer 57 corresponds to the exhaust port of the boiler 54, an exhaust port of the primary economizer 57 corresponds to the air inlet of the chimney 55, a condensate water collecting port which is communicated with the inside and the outside is arranged at the bottom side of the middle part of the condenser 56 corresponding to the exhaust port of the primary economizer 57, a condensate water tank 1 is arranged below the condenser 56, a first water inlet is arranged at the top, the water outlet of the condensed water tank 1 is fixedly communicated with the inlet of the one-network water tank 48 through a water treatment device capable of neutralizing, removing iron and deoxidizing condensed water and removing iron and deoxidizing tap water.

According to the requirement, the boiler 54 is the prior known technology, such as an SZS29-1.6/130/70-YQ type hot water boiler of Weifang civil boiler pressure vessel factory, the primary energy saver 57 is the prior known technology, such as a condensing boiler energy saver of the Qinli thermal energy mechanical equipment Limited company in Guangzhou, and the condensed water tank 1 and the one-net water tank 48 are the prior known technologies, such as stainless steel water tanks. In the use, the utility model has the advantages of reasonable and compact structure, the simple manufacture, through setting up one-level energy-saving appliance 57, can collect comdenstion water tank 1 with the moisture content in the high temperature flue gas that boiler 54 discharged, through setting up condenser 56, can improve the recovery efficiency of moisture in the high temperature flue gas, during the comdenstion water reinjection pipe network in the comdenstion water tank 1, replenish the water loss in the pipe network, improve the comdenstion water and be retrieving the utilization ratio, the low temperature flue gas of following one-level energy-saving appliance 57 exhaust discharges the back through chimney 55, can reduce the influence of flue gas to the surrounding environment greatly, through setting up water treatment facilities, can neutralize to neutral with the comdenstion water, avoid causing stronger corruption to the pipeline in the comdenstion water, and the.

The boiler flue gas condensate water recycling device can be further optimized or/and improved according to actual needs:

as shown in figure 1, the water treatment device comprises an alkali barrel 2, an iron removing tank 3, a deoxygenation tank 4, a water softener 50, a salt tank 51, a two-net water tank 49, a dosing pump 6 and a pressure pump 7, wherein a second water inlet is arranged at the top of the condensed water tank 1, a first dosing pipeline 5 is fixedly communicated between the second water inlet and an outlet of the dosing pump 6, a second dosing pipeline 8 is fixedly communicated between an inlet of the dosing pump 6 and an outlet of the alkali barrel 2, a first outlet is arranged at the lower part of the condensed water tank 1, a first pipeline 9 is fixedly communicated between the first outlet and an inlet of the pressure pump 7, a second pipeline 10 is fixedly communicated between an outlet of the pressure pump 7 and an inlet of the iron removing tank 3, a third pipeline 11 is fixedly communicated between an outlet of the iron removing tank 3 and an inlet of the deoxygenation tank 4, a fourth pipeline 12 is fixedly communicated between an outlet of the deoxygenation tank 4 and an inlet of the one-net water tank 48, and a fifth pipeline 17 is fixedly communicated between the fourth pipeline 12 and an inlet of the two, the top of the water softener 50 is provided with a machine head 52, the inlet of the machine head 52 is fixedly communicated with a water supply pipeline 53, the outlet of the machine head 52 is fixedly communicated with a sixth pipeline 22 with the third pipeline 11, the salt absorption port of the machine head 52 is fixedly communicated with a salt outlet of the salt tank 51 with a salt absorption pipeline 13, and the sewage discharge port of the machine head 52 is fixedly communicated with a sewage discharge pipeline 18.

The alkali tank 2 is of a known type, such as the alkali tank 2 filled with sodium hydroxide solution, the dosing pump 6 is of a known type, such as a diaphragm pump, the pressure pump 7 is of a known type, such as a stainless steel centrifugal pump, the iron removal tank 3 is of a known type, such as the manganese removal iron removal tank 3, the oxygen removal tank 4 is of a known type, such as a sponge oxygen remover of type GFY-8A, the water softener 50 and the handpiece 52 are of a known type, such as a demineralized water device of type KRH-20T/HB, and the salt tank 51 is of a known type, such as the salt tank 51 of type PE1000L, as required. Through setting up dosing pump 6, can make boiler 54 flue gas comdenstion water be neutral, reduce the chemical reaction between boiler 54 flue gas comdenstion water and the pipeline inner wall, prolong boiler 54's life, through setting up deironing jar 3 and oxygen-eliminating jar 4, can filter the impurity in the boiler 54 flue gas comdenstion water, avoid impurity long-term circulation back scale deposit in the pipeline to block up the pipeline, reduce the fault rate of heat supply pipe network, through setting up water supply pipe 53, water softener 50 and salt case 51, in the operation process, can avoid the condition that a net water tank 48 and two net water tanks 49 water yield are not enough, reduce the moisturizing quantity in the pipe network, and the running cost is reduced.

As shown in fig. 1 and 2, the second pipeline 10 is fixedly communicated with a first reverse discharge pipeline 16, the first reverse discharge pipeline 16 is provided with a first reverse discharge valve 39, the second pipeline 10 corresponding to the position between the first reverse discharge pipeline 16 and the inlet of the pressure pump 7 is provided with a first forward washing valve 34, and the second pipeline 10 corresponding to the position between the first reverse discharge pipeline 16 and the inlet of the iron removing tank 3 is provided with a first forward washing pressure gauge 35; a first backwashing pipeline 14 is fixedly communicated between the water supply pipeline 53 and a third pipeline 11 between the sixth pipeline 22 and the outlet of the iron removing tank 3, a first positive discharge pipeline 15 is fixedly communicated on the first backwashing pipeline 14, a first positive discharge valve 38 is arranged on the first positive discharge pipeline 15, a first backwashing valve 36 is arranged on the first backwashing pipeline 14 corresponding to the position between the first positive discharge pipeline 15 and the water supply pipeline 53, a first backwashing pressure gauge 37 is arranged on the first backwashing pipeline 14 corresponding to the position between the first positive discharge pipeline 15 and the third pipeline 11, and an iron removing water outlet valve 40 is arranged on the third pipeline 11 corresponding to the position between the first backwashing pipeline 14 and the sixth pipeline 22; a second reverse drainage pipeline 21 is fixedly communicated with the third pipeline 11 corresponding to the position between the sixth pipeline 22 and the inlet of the deaerating tank 4, a second reverse drainage valve 46 is arranged on the second reverse drainage pipeline 21, a second forward washing valve 41 is arranged on the third pipeline 11 corresponding to the position between the second reverse drainage pipeline 21 and the sixth pipeline 22, and a second forward washing pressure gauge 42 is arranged on the third pipeline 11 corresponding to the position between the second reverse drainage pipeline 21 and the inlet of the deaerating tank 4; a second backwashing pipeline 19 is fixedly communicated between the first backwashing pipeline 14 and the fourth pipeline 12 corresponding to the position between the first backwashing valve 36 and the water supply pipeline 53, a second positive discharge pipeline 20 is fixedly communicated on the second backwashing pipeline 19, a second positive discharge valve 45 is arranged on the second positive discharge pipeline 20, a second backwashing valve 43 is arranged on the second backwashing pipeline 19 corresponding to the position between the second positive discharge pipeline 20 and the first backwashing pipeline 14, a second backwashing pressure gauge 44 is arranged on the second backwashing pipeline 19 corresponding to the position between the second positive discharge pipeline 20 and the fourth pipeline 12, and a deoxidizing water outlet valve 47 is arranged on the fourth pipeline 12 corresponding to the position between the second backwashing pipeline 19 and the inlet of the water tank 48.

According to requirements, the first forward washing valve 34, the first backwashing valve 36, the first forward discharging valve 38, the first reverse discharging valve 39 and the iron removing water outlet valve 40 are all in the prior art, such as all electric diaphragm valves, the first forward washing pressure gauge 35, the first backwashing pressure gauge 37, the second forward washing pressure gauge 42 and the second backwashing pressure gauge 44 are all in the prior art, such as a differential pressure transmitter with integrated pressure display (DELTA-trans) and signal output of model DPGT40, the signal output end of the first forward washing pressure gauge 35 and the signal output end of the first backwashing pressure gauge 37 are all electrically connected with the signal input end of the first controller 23 in the prior art, the first controller 23 can be a multi-valve controller with model JMA502, the signal output end of the first controller 23 is respectively connected with the signal input end of the first forward washing valve 34, the signal input end of the first backwashing valve 36, the signal input end of the first forward discharging valve 38, The signal input end of the first inverted valve 39 and the signal input end of the iron removal water outlet valve 40 are electrically connected together; the second forward washing valve 41, the second backwashing valve 43, the second forward discharging valve 45, the second reverse discharging valve 46 and the deoxygenation water outlet valve 47 are all in the prior art, for example, all are electrically-operated diaphragm valves, a signal output end of the second forward washing pressure gauge 42 and a signal output end of the second backwashing pressure gauge 44 are electrically connected with a signal input end of a second controller 24 in the prior art, the second controller 24 may be a multi-valve controller with a model number of JMA502, and a signal output end of the second controller 24 is electrically connected with a signal input end of the first forward washing valve 34, a signal input end of the first backwashing valve 36, a signal input end of the first forward discharging valve 38, a signal input end of the first reverse discharging valve 39 and a signal input end of the deoxygenation water outlet valve 47. In the use, through such setting, can regularly wash the filtration impurity of operation in-process in deironing jar 3 and the deoxidization jar 4, improve boiler 54 flue gas condensate's softening efficiency, also can improve the life of deironing jar 3 and deoxidization jar 4, through setting up first controller 23 and second controller 24, first controller 23 and second controller 24 can switch between operation and cleaning condition deironing jar 3 and deoxidization jar 4 respectively through the input value of manometer, improve the utility model discloses an automation reduces operating personnel's intensity of labour.

As shown in the attached figure 1, the water treatment device further comprises a precipitation water tank 25, the precipitation water tank 25 is arranged below the condensed water tank 1, a seventh pipeline 26 is fixedly communicated between the first outlet and an inlet at the top of the precipitation water tank 25, a second outlet is arranged at the lower part of the precipitation water tank 25, and the second outlet is fixedly communicated with an inlet of the pressure pump 7 through a first pipeline 9.

In the use, through such setting, can make the liquid in the alkali bucket 2 and boiler 54 flue gas comdenstion water intensive mixing reaction, extension reaction time improves boiler 54 flue gas comdenstion water's acidizing effect.

As shown in fig. 1, a self-circulating pump 27 is disposed outside the condensed water tank 1, a first circulating pipeline 28 is fixedly communicated between the seventh pipeline 26 and an inlet of the self-circulating pump 27, a second circulating pipeline 29 is fixedly communicated between an outlet of the self-circulating pump 27 and the first chemical adding pipeline 5, a first circulating valve 31 is disposed on the seventh pipeline 26 corresponding to a position between the first circulating pipeline 28 and the inlet at the top of the sedimentation water tank 25, a second circulating valve 32 is disposed on the first circulating pipeline 28 corresponding to a position between the seventh pipeline 26 and the inlet of the self-circulating pump 27, and a third circulating valve 33 is disposed on the first chemical adding pipeline 5 corresponding to a position between the second circulating pipeline 29 and an outlet of the chemical adding pump 6.

The self-circulating pump 27 is a well-known one, such as a stainless centrifugal pump, and has overflow ports at the upper part of the condensed water tank 1 and the upper part of the precipitation tank 25, each of which is fixedly connected with an overflow pipe 30. In the use, through such setting, can make the liquid in the alkali bucket 2 and boiler 54 flue gas comdenstion water intensive mixing reaction, improve the liquid in the alkali bucket 2 and boiler 54 flue gas comdenstion water reaction rate, improve the acidizing effect of boiler 54 flue gas comdenstion water.

As shown in fig. 1, a secondary economizer 59 is fixedly installed in the condenser 56 corresponding to a position between an exhaust port of the primary economizer 57 and an intake port of the chimney 55, an intake port of the secondary economizer 59 corresponds to an exhaust port of the primary economizer 57, and an exhaust port of the secondary economizer 59 corresponds to an intake port of the chimney 55.

According to the requirement, the secondary economizer 59 is a conventional technology, such as a lithium bromide absorption type cold and hot water unit (flue gas hot water afterburning type) of Jiangsu Shuangliang group Limited company, and the outer sides of the primary economizer 57 and the secondary economizer 59 are in sealed contact with the inner side of the condenser 56. In the use, can utilize the flue gas that one-level economizer 57 gas vent discharged once more, further retrieve the moisture in the flue gas, can reduce the discharge temperature of flue gas once more simultaneously, reduce the influence of flue gas to the environment.

As shown in the attached drawing 1, the water circulation device further comprises a water circulation device, the water circulation device comprises a heat exchanger 60, a primary water pump 61, a secondary water pump 68 and a water replenishing pump, a water supply header 62 is fixedly communicated between a water outlet of the boiler 54 and a primary side water inlet of the heat exchanger 60, a water return header 63 is fixedly communicated between the primary side water outlet of the heat exchanger 60 and a water inlet of the primary water pump 61, a secondary water inlet and a secondary water outlet are arranged on the secondary energy saver 59, a first communicating hole and a second communicating hole which are communicated with each other inside and outside are respectively arranged on the condenser 56 corresponding to the positions of the secondary water inlet and the secondary water outlet, a first water return pipeline 64 is fixedly arranged in the first communicating hole, a second water return pipeline 65 is fixedly arranged in the second communicating hole, and the water; the primary economizer 57 is provided with a primary water inlet and a primary water outlet, the condenser 56 corresponding to the primary water inlet and the primary water outlet is respectively provided with a third communicating hole and a fourth communicating hole which are communicated with the inside and the outside, a third water return pipeline 66 is fixedly arranged in the third communicating hole, and a fourth water return pipeline 67 is fixedly arranged in the fourth communicating hole; the first water return pipeline 64 is fixedly communicated with the first-level water inlet through a third water return pipeline 66, the first-level water outlet is fixedly communicated with the inlet of the second-level water pump 68 through a fourth water return pipeline 67, the fourth water return pipeline 67 is fixedly communicated with the second-level water outlet through a second water return pipeline 65, a fifth water return pipeline 69 is fixedly communicated between the outlet of the second-level water pump 68 and the water inlet of the boiler 54, a pressure equalizing pipeline 70 is fixedly communicated between the water supply main 62 and the water return main 63, a pressure equalizing valve 71 is arranged on the pressure equalizing pipeline 70, a first water replenishing pipeline 73 is fixedly communicated between the water return main 63 corresponding to the position between the inlet of the pressure equalizing pipeline 70 and the inlet of the first-level water pump 61 and the outlet of the water replenishing pump 72, and a second water replenishing pipeline 74 is fixedly communicated between the inlet of the water replenishing pump 72.

The heat exchanger 60 is a well-known technology, such as a plate heat exchanger 60, and the primary water pump 61, the secondary water pump 68 and the make-up water pump 72 are all well-known technologies, such as a stainless steel centrifugal pump. In the use process, high-temperature water in the water supply header pipe 62 flows into the heat exchanger 60 through the first water return pipe 64 and the second water return pipe 65, the temperature is reduced, the high-temperature water flows into the secondary energy saver 59 through the first water return pipe 64 and the primary water pump 61, heat exchange is carried out between the high-temperature water and the flue gas in the secondary energy saver 59, the return water temperature is increased, the high-temperature water flows into the third water return pipe 66 through the second water return pipe 65, the flue gas temperature is reduced, and condensate water is generated and flows into the condensate water tank 1; meanwhile, the other part of return water enters the primary energy saver 57 through the third return water pipe 66 to exchange heat with high-temperature flue gas in the primary energy saver 57, the temperature of the flue gas is reduced to generate condensed water, the condensed water flows into the condensed water tank 1, the temperature of the return water is increased to flow into the fourth return water pipe 67, the condensed water is finally mixed with the return water in the secondary energy saver 59 to enter a water inlet of the boiler 54, through arranging the pressure equalizing pipe 70 and the pressure equalizing valve 71, when the heat is not supplied enough, the pressure equalizing valve 71 is opened, so that a part of water in the water supply main pipe 62 does not pass through the heat exchanger 60, after the water is heated by the boiler 54, the water supply temperature in the water supply main pipe 62 can be rapidly increased, through arranging the water replenishing pump 72, the collected condensed water can be injected into a pipe network after the water loss in the pipe network, the water consumption in the, reduce the moisture in the flue gas, reduce the influence of flue gas to the surrounding environment.

The utility model discloses normal water treatment facilities's use: and (3) normal operation state: the first step, the water in the condensed water tank 1 is acidified: firstly, opening a third circulating valve 33, closing a first circulating valve 31 and a second circulating valve 32, starting a dosing pump 6, starting to add a sodium hydroxide solution into a condensed water tank 1, after the sampled boiler 54 flue gas condensed water is neutral, closing the dosing pump 6, the third circulating valve 33 and the first circulating valve 31, opening the second circulating valve 32, starting a self-circulating pump 27, circulating the liquid in the condensed water tank 1 for 2-5 minutes, and finally closing the self-circulating pump 27; second, the liquid in the condensed water tank 1 is flowed into the precipitation tank 25: closing the second circulation valve 32 and the third circulation valve 33, opening the first circulation valve 31, allowing the liquid in the condensed water tank 1 to flow into the precipitation water tank 25 through the fifth pipeline 17 under the action of pressure difference, and in the third step, pumping the liquid in the precipitation water tank 25 into the iron removing tank 3 and the oxygen removing tank 4 for softening and then discharging into the two-net water tank 49: firstly, a first forward washing valve 34, an iron removal water outlet valve 40, a second forward washing valve 41 and an oxygen removal water outlet valve 47 are opened, a first backwashing valve 36, a first reverse discharge valve 39, a first forward discharge valve 38, a second backwashing valve 43, a second reverse discharge valve 46 and a second forward discharge valve 45 are closed, a pressure pump 7 is started, and liquid in a settling water tank 25 sequentially flows through an iron removal tank 3 and an oxygen removal tank 4 for softening, and finally flows through a fourth pipeline 12 to flow into a two-net water tank 49.

Cleaning state of iron removing tank 3: in the first step, when the measured value in the first forward washing pressure gauge 35 is less than the specified value, the deferrization tank 3 is backwashed: opening a first backwashing valve 36 and a first reverse draining valve 39, closing a first forward washing valve 34, a first forward draining valve 38 and an iron removal water outlet valve 40, starting a pressure pump 7, cleaning impurities in the iron removal tank 3 in the operation process by using acidified condensed water in a precipitation water tank 25, and enabling the impurities to flow into a wastewater recovery station after flowing through a first reverse draining pipeline 16 by a first controller 23; and a second step of washing the deironing tank 3 in a forward direction when the measured value in the first backwashing pressure gauge 37 is greater than a specified value: through first controller 23, open first positive flush valve 34 and first positive row valve 38, close first backwash valve 36, first back flush valve 39 and deironing outlet valve 40, start the force (forcing) pump 7, utilize the comdenstion water of precipitation tank 25 woolen acid, the impurity to the interior backwash in-process of deironing jar 3 is cleared up, flow into waste water recovery station behind the impurity flow first positive row pipeline 15, when the measured value in first positive flush manometer 35 is greater than the specified value, make deironing jar 3 get into normal operating condition through first controller 23.

Cleaning state of the deaerating tank 4: in the first step, when the measured value in the second forward washing pressure gauge 42 is less than the specified value, the deoxygenation tank 4 is backwashed: through the second controller 24, opening a second backwashing valve 43 and a second reverse draining valve 46, closing a second forward washing valve 41, a second forward draining valve 45 and a deoxidization water outlet valve 47, starting the pressure pump 7, utilizing condensed water treated by the iron removing tank 3 to clean impurities in the operation process in the deoxidization tank 4, and enabling the impurities to flow into a wastewater recovery station after flowing through a second reverse draining pipeline 21; and in the second step, when the measured value in the second backwashing pressure gauge 44 is greater than a specified value, the deaerating tank 4 is subjected to forward washing: through second controller 24, open second positive flush valve 41 and second positive row valve 45, close second backwash valve 43, second negative row valve 46 and deoxidization outlet valve 47, start force (forcing) pump 7, utilize the comdenstion water after the iron removing jar 3 handles, the impurity to the backwash in-process in the deoxidization jar 4 is cleared up, impurity flows into waste water recovery station behind the positive row pipeline 20 of second, when the measured value in the second positive flush manometer 42 is greater than the specified value, make deoxidization jar 4 get into normal operating condition through second controller 24.

Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.

Claims (10)

1. The boiler flue gas condensate water recycling device is characterized by comprising a boiler, a chimney, a condenser, a primary energy saver, a condensate water tank, a one-net water tank and a water treatment device, wherein the condenser is a hollow pipe which is thick in the middle, thin in two sides and horizontally arranged, an air outlet of the boiler is fixedly communicated with an air inlet of the chimney through the condenser, the primary energy saver is fixedly arranged on the inner side of the middle of the condenser, an air inlet of the primary energy saver corresponds to an air outlet of the boiler, an air outlet of the primary energy saver corresponds to an air inlet of the chimney, an internally and externally communicated condensate water collecting port is arranged on the bottom side of the middle of the condenser corresponding to the position of the air outlet of the primary energy saver, the condensate water tank is arranged below the condenser, a first water inlet is arranged at the top of the condensate water tank, a condensate water collecting pipeline is fixedly communicated between the first water inlet and the, The water treatment device for removing iron and oxygen and removing iron and oxygen from tap water are fixedly communicated together.

2. The boiler flue gas condensate recycling device according to claim 1, wherein the water treatment device comprises an alkali barrel, an iron removing tank, a deaerating tank, a water softener, a salt tank, a two-net water tank, a chemical feeding pump and a pressure pump, a second water inlet is arranged at the top of the condensed water tank, a first chemical feeding pipeline is fixedly communicated between the second water inlet and an outlet of the chemical feeding pump, a second chemical feeding pipeline is fixedly communicated between an inlet of the chemical feeding pump and an outlet of the alkali barrel, a first outlet is arranged at the lower part of the condensed water tank, a first pipeline is fixedly communicated between the first outlet and an inlet of the pressure pump, a second pipeline is fixedly communicated between an outlet of the pressure pump and an inlet of the iron removing tank, a third pipeline is fixedly communicated between an outlet of the iron removing tank and an inlet of the deaerating tank, a fourth pipeline is fixedly communicated between an outlet of the deaerating tank and an inlet of the one-net water tank, and a fifth pipeline is fixedly communicated between the fourth pipeline and an inlet of, the water softener is characterized in that a machine head is arranged at the top of the water softener, an inlet of the machine head is fixedly communicated with a water supply pipeline, a sixth pipeline is fixedly communicated between an outlet of the machine head and the third pipeline, a salt absorption pipeline is fixedly communicated between a salt absorption port of the machine head and a salt outlet of the salt box, and a sewage discharge port of the machine head is fixedly communicated with a sewage discharge pipeline.

3. The boiler flue gas condensate water recycling device according to claim 2, wherein the second pipeline is fixedly communicated with a first reverse-drainage pipeline, the first reverse-drainage pipeline is provided with a first reverse-drainage valve, the second pipeline corresponding to a position between the first reverse-drainage pipeline and the inlet of the pressure pump is provided with a first forward-washing valve, and the second pipeline corresponding to a position between the first reverse-drainage pipeline and the inlet of the iron removing tank is provided with a first forward-washing pressure gauge; a first backwashing pipeline is fixedly communicated between the water supply pipeline and a third pipeline at a position between the sixth pipeline and an outlet of the iron removing tank, a first positive discharge pipeline is fixedly communicated on the first backwashing pipeline, a first positive discharge valve is arranged on the first positive discharge pipeline, a first backwashing valve is arranged on the first backwashing pipeline corresponding to a position between the first positive discharge pipeline and the water supply pipeline, a first backwashing pressure gauge is arranged on the first backwashing pipeline corresponding to a position between the first positive discharge pipeline and the third pipeline, and an iron removing water outlet valve is arranged on the third pipeline corresponding to a position between the first backwashing pipeline and the sixth pipeline; a second reverse drainage pipeline is fixedly communicated with the third pipeline corresponding to the position between the sixth pipeline and the inlet of the deaerating tank, a second reverse drainage valve is arranged on the second reverse drainage pipeline, a second forward washing valve is arranged on the third pipeline corresponding to the position between the second reverse drainage pipeline and the sixth pipeline, and a second forward washing pressure gauge is arranged on the third pipeline corresponding to the position between the second reverse drainage pipeline and the inlet of the deaerating tank; a second backwashing pipeline is fixedly communicated between the first backwashing pipeline corresponding to the position between the first backwashing valve and the water supply pipeline and the fourth pipeline, a second positive row pipeline is fixedly communicated on the second backwashing pipeline, a second positive row valve is arranged on the second positive row pipeline, a second backwashing valve is arranged on the second backwashing pipeline corresponding to the position between the second positive row pipeline and the first backwashing pipeline, a second backwashing pressure gauge is arranged on the second backwashing pipeline corresponding to the position between the second positive row pipeline and the fourth pipeline, and a deoxidizing water outlet valve is arranged on the fourth pipeline corresponding to the position between the second backwashing pipeline and the inlet of the water tank.

4. The boiler flue gas condensate water recycling device according to claim 1, 2 or 3, wherein the water treatment device further comprises a precipitation water tank, a precipitation water tank is arranged below the condensation water tank, a seventh pipeline is fixedly communicated between the first outlet and an inlet at the top of the precipitation water tank, a second outlet is arranged at the lower part of the precipitation water tank, and the second outlet is fixedly communicated with an inlet of the booster pump through the first pipeline.

5. The boiler flue gas condensate recycling device according to claim 4, wherein a self-circulating pump is provided outside the condensate water tank, a first circulating pipe is fixedly communicated between the seventh pipe and the inlet of the self-circulating pump, a second circulating pipe is fixedly communicated between the outlet of the self-circulating pump and the first chemical feeding pipe, a first circulating valve is provided on the seventh pipe corresponding to a position between the first circulating pipe and the inlet of the top of the precipitation water tank, a second circulating valve is provided on the first circulating pipe corresponding to a position between the seventh pipe and the inlet of the self-circulating pump, and a third circulating valve is provided on the first chemical feeding pipe corresponding to a position between the second circulating pipe and the outlet of the chemical feeding pump.

6. The boiler flue gas condensate water recycling device according to claim 1, 2, 3 or 5, characterized in that a secondary economizer is fixedly installed in the condenser corresponding to a position between the exhaust port of the primary economizer and the air inlet of the chimney, the air inlet of the secondary economizer corresponds to the exhaust port of the primary economizer, and the air outlet of the secondary economizer corresponds to the air inlet of the chimney.

7. The boiler flue gas condensate water recycling device according to claim 4, wherein a secondary economizer is fixedly installed in the condenser corresponding to a position between the exhaust port of the primary economizer and the air inlet of the chimney, the air inlet of the secondary economizer corresponds to the exhaust port of the primary economizer, and the air outlet of the secondary economizer corresponds to the air inlet of the chimney.

8. The boiler flue gas condensate water recycling device according to claim 1 or 2 or 3 or 5 or 7, it is characterized by also comprising a water circulating device, wherein the water circulating device comprises a heat exchanger, a primary water pump, a secondary water pump and a water replenishing pump, a water supply main pipe is fixedly communicated between the water outlet of the boiler and the primary side water inlet of the heat exchanger, a water return main pipe is fixedly communicated between the primary side water outlet of the heat exchanger and the water inlet of the primary water pump, a secondary water inlet and a secondary water outlet are arranged on the secondary energy saver, a first communicating hole and a second communicating hole which are communicated with the inside and the outside are respectively arranged on the condenser corresponding to the positions of the secondary water inlet and the secondary water outlet, a first water return pipeline is fixedly arranged in the first communicating hole, a second water return pipeline is fixedly arranged in the second communicating hole, and the water outlet of the primary water pump and the secondary water inlet are fixedly communicated together through the first water return pipeline; the primary economizer is provided with a primary water inlet and a primary water outlet, a condenser corresponding to the primary water inlet and the primary water outlet is respectively provided with a third communicating hole and a fourth communicating hole which are communicated with the inside and the outside, a third water return pipeline is fixedly arranged in the third communicating hole, and a fourth water return pipeline is fixedly arranged in the fourth communicating hole; fixed intercommunication through the third return water pipeline between first return water pipeline and the one-level water inlet is in the same place, through the fixed intercommunication of fourth return water pipeline between the import of one-level delivery port and second grade water pump together, through the fixed intercommunication of second return water pipeline between fourth return water pipeline and the second grade delivery port together, fixed intercommunication has fifth return water pipeline between the water inlet of export of second grade water pump and boiler, it has the pressure-equalizing pipe to fix the intercommunication between water supply main and the return water house steward, be equipped with the pressure-equalizing valve on the pressure-equalizing pipe, it has first moisturizing pipeline to correspond to fix the intercommunication between the return water house steward of position between pressure-equalizing pipe and the import of one-level water pump and the export of moisturizing pump, it has second moisturizing pipeline to fix the intercommunication between the.

9. The boiler flue gas condensate water recycling device according to claim 4, further comprising a water circulation device, wherein the water circulation device comprises a heat exchanger, a primary water pump, a secondary water pump and a water replenishing pump, a water supply header pipe is fixedly communicated between a water outlet of the boiler and a primary side water inlet of the heat exchanger, a water return header pipe is fixedly communicated between a primary side water outlet of the heat exchanger and a water inlet of the primary water pump, a secondary water inlet and a secondary water outlet are arranged on the secondary economizer, a condenser corresponding to the positions of the secondary water inlet and the secondary water outlet is respectively provided with a first communicating hole and a second communicating hole which are communicated with each other inside and outside, a first water return pipeline is fixedly arranged in the first communicating hole, a second water return pipeline is fixedly arranged in the second communicating hole, and a water outlet of the primary water; the primary economizer is provided with a primary water inlet and a primary water outlet, a condenser corresponding to the primary water inlet and the primary water outlet is respectively provided with a third communicating hole and a fourth communicating hole which are communicated with the inside and the outside, a third water return pipeline is fixedly arranged in the third communicating hole, and a fourth water return pipeline is fixedly arranged in the fourth communicating hole; fixed intercommunication through the third return water pipeline between first return water pipeline and the one-level water inlet is in the same place, through the fixed intercommunication of fourth return water pipeline between the import of one-level delivery port and second grade water pump together, through the fixed intercommunication of second return water pipeline between fourth return water pipeline and the second grade delivery port together, fixed intercommunication has fifth return water pipeline between the water inlet of export of second grade water pump and boiler, it has the pressure-equalizing pipe to fix the intercommunication between water supply main and the return water house steward, be equipped with the pressure-equalizing valve on the pressure-equalizing pipe, it has first moisturizing pipeline to correspond to fix the intercommunication between the return water house steward of position between pressure-equalizing pipe and the import of one-level water pump and the export of moisturizing pump, it has second moisturizing pipeline to fix the intercommunication between the.

10. The boiler flue gas condensate water recycling device according to claim 6, further comprising a water circulation device, wherein the water circulation device comprises a heat exchanger, a primary water pump, a secondary water pump and a water replenishing pump, a water supply header pipe is fixedly communicated between a water outlet of the boiler and a primary side water inlet of the heat exchanger, a water return header pipe is fixedly communicated between a primary side water outlet of the heat exchanger and a water inlet of the primary water pump, a secondary water inlet and a secondary water outlet are arranged on the secondary economizer, a condenser corresponding to the positions of the secondary water inlet and the secondary water outlet is respectively provided with a first communicating hole and a second communicating hole which are communicated with each other inside and outside, a first water return pipeline is fixedly arranged in the first communicating hole, a second water return pipeline is fixedly arranged in the second communicating hole, and a water outlet of the primary water; the primary economizer is provided with a primary water inlet and a primary water outlet, a condenser corresponding to the primary water inlet and the primary water outlet is respectively provided with a third communicating hole and a fourth communicating hole which are communicated with the inside and the outside, a third water return pipeline is fixedly arranged in the third communicating hole, and a fourth water return pipeline is fixedly arranged in the fourth communicating hole; fixed intercommunication through the third return water pipeline between first return water pipeline and the one-level water inlet is in the same place, through the fixed intercommunication of fourth return water pipeline between the import of one-level delivery port and second grade water pump together, through the fixed intercommunication of second return water pipeline between fourth return water pipeline and the second grade delivery port together, fixed intercommunication has fifth return water pipeline between the water inlet of export of second grade water pump and boiler, it has the pressure-equalizing pipe to fix the intercommunication between water supply main and the return water house steward, be equipped with the pressure-equalizing valve on the pressure-equalizing pipe, it has first moisturizing pipeline to correspond to fix the intercommunication between the return water house steward of position between pressure-equalizing pipe and the import of one-level water pump and the export of moisturizing pump, it has second moisturizing pipeline to fix the intercommunication between the.

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