CN216946364U

CN216946364U - Boiler chemical water treatment system

Info

Publication number: CN216946364U
Application number: CN202220746654.9U
Authority: CN
Inventors: 袁志明; 董文科; 李超
Original assignee: Sichuan Dianshi Energy Co ltd
Current assignee: Sichuan Dianshi Energy Co ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-07-12
Anticipated expiration: 2032-04-01

Abstract

The utility model relates to a boiler chemical water treatment system belongs to chemical water treatment technical field, and it includes reaction box, drive arrangement and agitating unit, offer the mouth of puting in that is used for puting in the treatment reagent on the reaction box, drive arrangement sets up on the reaction box, agitating unit sets up in the reaction box, drive arrangement is used for driving the agitating unit operation, still be provided with inlet tube and outlet pipe on the reaction box, the inlet tube is used for being connected with the demineralized water tank, the outlet pipe is used for being connected with the boiler. This application has and is convenient for further purify chemical water, makes the chemical water after the purification can satisfy the effect that the quality of water required of boiler feedwater.

Description

Boiler chemical water treatment system

Technical Field

The application relates to the technical field of chemical water treatment, in particular to a boiler chemical water treatment system.

Background

The treatment method of the chemical water is mainly divided into three steps, firstly, the pretreatment is carried out through a raw water tank, a raw water pump, a multi-medium filter and a filter backwashing system; secondly, desalting the chemical water by utilizing equipment such as a filter, a high-pressure water pump, a reverse osmosis membrane group and the like; and finally, carrying out fine desalination on the desalted chemical water by using a two-stage high-pressure pump, an EDI device, an EDI water production tank and a desalted water pump, wherein the fine desalination mainly ensures the effluent quality index, and the desalted water which can reach the discharge standard is produced.

The make-up water used in the boiler needs to be pretreated by purification and the like, the water which is not subjected to purification treatment contains a plurality of impurities and harmful substances, and the water which is not subjected to purification treatment is definitely not allowed to directly enter a steam-water circulating system according to the clear regulation in the national relevant regulations.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: the chemical water treatment system treats chemical water into desalted water which can be discharged, but the treated chemical water may contain substances which corrode or scale a metal boiler, so that the treated chemical water cannot be directly used as make-up water of the boiler.

SUMMERY OF THE UTILITY MODEL

In order to further purify chemical water, the chemical water after the purification can satisfy the water quality requirement of boiler feedwater, and the application provides a boiler chemical water treatment system.

The application provides a boiler chemical water treatment system adopts following technical scheme:

the utility model provides a boiler chemical water treatment system, includes reaction box, drive arrangement and agitating unit, offer the mouth of puting in that is used for puting in treatment agent on the reaction box, drive arrangement sets up on the reaction box, agitating unit sets up in the reaction box, drive arrangement is used for driving agitating unit operation, still be provided with inlet tube and outlet pipe on the reaction box, the inlet tube is used for being connected with the demineralized water tank, the outlet pipe is used for being connected with the boiler.

Through adopting above-mentioned technical scheme, to put in the mouth through the reaction box to the treatment agent that the demineralized water was handled and put in, start drive arrangement, drive arrangement drives the agitating unit operation, carries out abundant mixture to demineralized water and treatment agent, has realized carrying out further purification to the demineralized water to can reach the requirement of boiler makeup water, thereby realized can be with the chemical water after handling can be done the makeup water use of boiler, practiced thrift the resource.

Optionally, the driving device includes a motor, the motor is disposed on a wall of the reaction box, and an output shaft of the motor penetrates through the wall of the reaction box and is connected to the stirring device.

Through adopting above-mentioned technical scheme, utilize the motor to drive agitating unit operation to drive agitating unit pivoted effect has been realized.

Optionally, agitating unit includes stirring mobile jib and stirring auxiliary rod, the output shaft coaxial line of stirring mobile jib and motor is connected, the stirring auxiliary rod is provided with a plurality ofly on the stirring mobile jib, the stirring auxiliary rod is used for stirring the demineralized water of putting in treatment agent.

Through adopting above-mentioned technical scheme, the motor drives the stirring mobile jib and rotates, and the stirring mobile jib drives the stirring auxiliary rod and uses the stirring mobile jib to rotate as the axle, utilizes stirring mobile jib and stirring auxiliary rod jointly with handling reagent and demineralized water misce bene, obtains better purifying effect to the demineralized water after handling can reach the water quality requirement of boiler makeup water.

Optionally, a plurality of stirring pieces are arranged on the stirring main rod and the stirring auxiliary rod.

Through adopting above-mentioned technical scheme, set up the stirring piece on stirring mobile jib and stirring auxiliary rod, increased stirring mobile jib and stirring auxiliary rod at the area of contact of stirring in-process with the demineralized water to make the effect of stirring demineralized water better.

Optionally, the treatment system further comprises a blowdown device for discharging the sediment in the reaction tank.

Through adopting above-mentioned technical scheme, add treatment reagent to the demineralized water, chemical reaction or physical reaction take place for treatment reagent and demineralized water for can produce the precipitate in the demineralized water, utilize waste fitting discharging to discharge the precipitate, avoided the precipitate to a certain extent along with the possibility that the demineralized water after handling gets into the boiler.

Optionally, waste fitting discharging includes honeycomb duct, blow off pipe and water valve, the honeycomb duct intercommunication is provided with many on the diapire of reaction box, the one end that the reaction box was kept away from to the honeycomb duct all communicates with the blow off pipe, the water valve sets up on the blow off pipe, the water valve is used for controlling the break-make of blow off pipe.

Through adopting above-mentioned technical scheme, because the precipitate is located the bottom of reaction box usually, when the precipitate in the demineralized water is discharged to needs, open the water valve, the precipitate is discharged by the blow off pipe by the honeycomb duct flow direction blow off pipe of reaction box bottom portion again to the effect of discharging the precipitate in the demineralized water has been realized.

Optionally, a first booster water pump is arranged on the water inlet pipe, and the first booster water pump is used for pumping water in the water inlet pipe into the reaction tank; and the water outlet pipe is provided with a second booster water pump, and the second booster water pump is used for pumping water in the water outlet pipe into the boiler.

Through adopting above-mentioned technical scheme, utilize first booster pump to be convenient for transport the demineralized water in the demineralized water case to the reaction box, utilize second booster pump to be convenient for transport the demineralized water after handling in the reaction box to the boiler in to supply the moisturizing of boiler.

Optionally, can dismantle between the output shaft of stirring mobile jib and motor and be connected, be provided with the connecting sleeve on the stirring mobile jib, the fixed connecting rod that is provided with on the output shaft of motor, the one end that the output shaft of motor was kept away from to the connecting rod is pegged graft in the connecting sleeve, be provided with fixing bolt on the connecting sleeve, the fixing bolt screw thread is worn to establish on connecting sleeve and connecting rod.

Through adopting above-mentioned technical scheme, can dismantle the setting between the output shaft of stirring mobile jib and motor, be convenient for take off the clearance with stirring mobile jib and the stirring auxiliary rod of being connected with stirring mobile jib, when needs are dismantled stirring mobile jib, unscrew fixing bolt, extract the connecting sleeve of being connected with stirring mobile jib from the connecting rod, realized the dismantlement of stirring mobile jib and connecting rod promptly to the dismantlement between the output shaft of stirring mobile jib and motor has been realized.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the motor is utilized to drive the stirring main rod and the stirring auxiliary rod to rotate, so that a treatment reagent added into the desalted water and the desalted water can be uniformly mixed, the desalted water can be purified conveniently, the treated desalted water can meet the water quality requirement of boiler make-up water, and the reuse of the desalted water is realized;

2. the sediment in the reaction box is discharged by the diversion pipe and the blow-off pipe, so that the possibility of bringing the sediment into the boiler is reduced.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

FIG. 2 is a schematic cross-sectional view illustrating the inside of a reaction chamber according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of an explosion structure for showing that a motor is detachably connected with a stirring main rod according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram for showing a pollution discharge device according to an embodiment of the present application.

Description of reference numerals: 1. a reaction box; 11. a throwing port; 12. a water inlet pipe; 121. a first booster water pump; 13. a water outlet pipe; 131. a second booster water pump; 14. a shielding plate; 15. buckling; 2. a drive device; 21. a motor; 3. a stirring device; 31. a stirring main rod; 32. a stirring auxiliary rod; 33. a stirring sheet; 4. a brine tank; 5. a boiler; 6. a sewage draining device; 61. a flow guide pipe; 62. a blow-off pipe; 63. a water valve; 7. a connecting sleeve; 71. fixing the bolt; 8. a connecting rod.

Detailed Description

The quality of water vapor can directly influence the safe and stable operation of equipment such as a boiler, a steam turbine and the like; the water which is not purified contains a lot of impurities and harmful substances, the water is not allowed to enter a steam-water circulation system according to the relevant national standard, so the hardness, oxygen content and the like of the water are generally required to be adjusted before the make-up water enters a boiler, and the desalted water obtained after the chemical water treatment cannot meet the relevant requirements of the make-up water of the boiler, so the circulation mode of using the desalted water as the make-up water of the boiler after the chemical water treatment is not easy to realize, and in the further treatment process of the desalted water, sediment substances can be generated, and if the desalted water is directly placed in the boiler for treatment, the sediment substances are left in the boiler and are not easy to clean.

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a boiler chemical water treatment system. Referring to fig. 1 and 2, the chemical water treatment system of boiler 5 includes reaction box 1, drive arrangement 2 and agitating unit 3, reaction box 1 is square box, offer the input mouth 11 that is used for putting in treatment agent on the roof of reaction box 1, drive arrangement 2 sets up on reaction box 1, agitating unit 3 sets up in reaction box 1, drive arrangement 2 is used for driving agitating unit 3 and operates, still be provided with inlet tube 12 and outlet pipe 13 on reaction box 1, inlet tube 12 is used for being connected with demineralized water tank 4, outlet pipe 13 is used for being connected with boiler 5. Wherein the demineralized water tank 4 is used for storing demineralized water obtained after chemical water treatment.

Among the above-mentioned embodiment, the demineralized water is transported to reaction box 1 from demineralized water tank 4 through inlet tube 12, by throwing in mouthful 11 to adding treatment reagent in reaction box 1, start drive arrangement 2, drive arrangement 2 drives agitating unit 3 and stirs demineralized water and treatment reagent, thereby make the stirring between treatment reagent and the demineralized water, realized the further processing to the demineralized water, the demineralized water after will handling again passes through outlet pipe 13 and transports to boiler 5 in and use, realized can circulate and regard as boiler 5 to supply water to use after the chemical water treatment, more environmental protection.

It is noted that the treatment reagent added into the reaction chamber 1 includes a corrosion and scale inhibitor, a chemical oxygen scavenger, an alkali reducer, and the like. The corrosion and scale inhibitor is used for preventing the formation of water scale on the heated surface of the boiler 5 and preventing the boiler 5 from being corroded in the process of supplying water for heating; the chemical deoxidant can effectively absorb dissolved oxygen in water of the boiler 5 and prevent the dissolved oxygen from corroding metal of the boiler 5; the alkalinity reducing agent can effectively reduce the alkalinity of the water supplied by the boiler 5, improve the concentration multiple of the boiler water, reduce the discharge capacity of the boiler 5 and obviously improve the coal-steam ratio and the water-steam ratio. The dosage of the treatment reagent and the selection of the type of the treatment reagent are determined according to the historical experience and the actual situation of workers.

Referring to fig. 2 and 3, as an embodiment of the driving device 2, the driving device 2 includes a motor 21, the motor 21 is disposed on the top wall of the reaction chamber 1, an output shaft of the motor 21 extends vertically downward, and is connected to the stirring device 3 after passing through the wall of the reaction chamber 1; wherein, the motor 21 can be a waterproof motor, thereby avoiding the fault caused by water inflow of the motor 21 to a certain extent;

as an embodiment of the stirring device 3, the stirring device 3 includes a main stirring rod 31 and a plurality of auxiliary stirring rods 32, the main stirring rod 31 is coaxially connected to the output shaft of the motor 21, the plurality of auxiliary stirring rods 32 are disposed on the main stirring rod 31, each auxiliary stirring rod 32 is an L-shaped rod, one rod section of each auxiliary stirring rod 32 is disposed in parallel with the main stirring rod 31, and each auxiliary stirring rod 32 is used for stirring the desalted water in which the treatment reagent is put; the main stirring rod 31 and the sub-stirring rod 32 are each provided with a plurality of stirring blades 33, and the stirring blades 33 are rectangular pieces.

In the above-mentioned embodiment, starter motor 21, motor 21 drives stirring mobile jib 31 and rotates, stirring mobile jib 31 drives stirring auxiliary rod 32 and rotates, and stirring auxiliary rod 32 uses stirring mobile jib 31 to rotate as the axis of rotation, thereby realized the stirring to demineralized water and treatment agent, utilize stirring piece 33 further to increase the area of contact of stirring mobile jib 31 and stirring auxiliary rod 32 with the demineralized water, be favorable to handling agent more even at the mixed demineralized water, thereby realized the effect to demineralized water further treatment, so as to reach the water quality requirement of 5 feedwater of boiler.

Referring to fig. 3, as a further embodiment of the connection between the stirring main rod 31 and the output shaft of the motor 21, the stirring main rod 31 is detachably connected to the output shaft of the motor 21, a connecting sleeve 7 is welded on the stirring main rod 31, a connecting rod 8 is fixedly arranged on the output shaft of the motor 21, one end of the connecting rod 8, which is far away from the output shaft of the motor 21, is inserted into the connecting sleeve 7, a fixing bolt 71 is arranged on the connecting sleeve 7, and the fixing bolt 71 is simultaneously threaded through the connecting sleeve 7 and the connecting rod 8.

In the above embodiment, when the stirring main rod 31 needs to be detached from the output shaft of the motor 21, the fixing bolt 71 is unscrewed, and the connecting sleeve 7 connected with the stirring main rod 31 is pulled out from the connecting rod 8, that is, the stirring main rod 31 and the connecting rod 8 are detached, so that the detachment between the stirring main rod 31 and the output shaft of the motor 21 is realized, and the detachment between the stirring main rod 31 and the output shaft of the motor 21 is realized, so that the stirring main rod 31 is detached, cleaned and maintained conveniently.

Referring to fig. 2 and 4, the treatment system further comprises a sewage draining device 6, wherein the sewage draining device 6 is used for draining sediments in the reaction box 1; as an implementation manner of the sewage discharging device 6, the sewage discharging device 6 includes a plurality of flow guide pipes 61, a sewage discharging pipe 62 and a water valve 63, the flow guide pipes 61 are communicated with the bottom wall of the reaction box 1, in this embodiment, the flow guide pipes 61 are provided with four flow guide pipes, in other embodiments, the number of the flow guide pipes 61 may also be greater than four or less than four flow guide pipes, one end of each flow guide pipe 61 is communicated with the bottom wall of the reaction box 1, the other ends of the plurality of flow guide pipes 61 are simultaneously communicated with one end of the sewage discharging pipe 62, the water valve 63 is provided on the sewage discharging pipe 62, and the water valve 63 is used for controlling the on-off of the sewage discharging pipe 62.

Among the above-mentioned embodiment, in the in-process of throwing in treatment agent and handling demineralized water, put in reagent and take place chemical reaction with demineralized water, can produce partial precipitate, open the water drain valve, the precipitate that is located reaction box 1 bottom is limited discharges from honeycomb duct 61, a plurality of honeycomb ducts 61 are convenient for discharge the precipitate that is located reaction box 1 bottom different positions fast, discharge through blow off pipe 62 again, thereby avoided the precipitate to follow the certain degree to get into the possibility of boiler 5 along with the feedwater together.

It is to be noted that some of the make-up water is inevitably discharged during the discharge of the sediment, but since the sediment is settled at the lowermost portion of the reaction tank 1, the sediment is preferentially discharged when the water valve 63 is opened. And, there is certain distance in the position of outlet pipe 13 apart from the diapire of reaction box 1, and outlet pipe 13 is difficult for transporting the sediment of reaction box 1 bottom to outlet pipe 13 promptly, has further reduced the possibility that sediment gets into boiler 5.

Referring to fig. 1, a first booster water pump 121 is arranged on the water inlet pipe 12, and the first booster water pump 121 is used for pumping the water in the water inlet pipe 12 into the reaction box 1, so that the effect of smoothly transporting the demineralized water into the reaction box 1 is achieved; the water outlet pipe 13 is provided with a second booster water pump 131 and a second booster water pump 131 for pumping the water in the water outlet pipe 13 into the boiler 5, thereby realizing the effect of transporting the treated desalted water into the boiler 5

Referring to fig. 1, the reaction chamber 1 is further provided with a shielding plate 14 for covering the input port 11 in a hinged manner, so that water in the reaction chamber 1 can be splashed out, and a buckle 15 is further arranged between the shielding plate and the chamber body of the reaction chamber 1 and used for fixing the shielding plate 14 and the chamber wall of the reaction chamber 1 after the treatment reagent is input.

The implementation principle of the boiler chemical water treatment system in the embodiment of the application is as follows: transport demineralized water to reaction box 1 in, put in by the mouth 11 department of putting in of reaction box 1 and put in the treatment agent, starter motor 21, motor 21 drive stirring mobile jib 31 and stirring auxiliary rod 32 and rotate to with demineralized water and treatment agent stirring, take place chemical reaction between demineralized water and the treatment agent, produce the boiler 5 water that accords with the standard. Utilize processing system to realize carrying out further processing with the demineralized water that produces behind the chemical water treatment to make chemical water can regard as boiler 5's make-up water to use after handling many times, reduced the water yield of discharging the demineralized water in to the environment, environmental protection more.

The foregoing is a preferred embodiment of the present invention and is not intended to limit the scope of the utility model in any way, and any feature disclosed in this specification (including the abstract and drawings) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

Claims

1. A boiler chemical water treatment system, characterized in that: the device comprises a reaction box (1), a driving device (2) and a stirring device (3), wherein a feeding port (11) for feeding a treatment reagent is formed in the reaction box (1), the driving device (2) is arranged on the reaction box (1), the stirring device (3) is arranged in the reaction box (1), and the driving device (2) is used for driving the stirring device (3) to operate; still be provided with inlet tube (12) and outlet pipe (13) on reaction box (1), inlet tube (12) are used for being connected with demineralized water tank (4), outlet pipe (13) are used for being connected with boiler (5).

2. The boiler chemical water treatment system according to claim 1, wherein: the driving device (2) comprises a motor (21), the motor (21) is arranged on the wall of the reaction box (1), and an output shaft of the motor (21) penetrates through the wall of the reaction box (1) and then is connected with the stirring device (3).

3. The boiler chemical water treatment system according to claim 2, wherein: agitating unit (3) are including stirring mobile jib (31) and stirring auxiliary rod (32), stirring mobile jib (31) and the output shaft coaxial line of motor (21) are connected, stirring auxiliary rod (32) are provided with a plurality ofly on stirring mobile jib (31), stirring auxiliary rod (32) are used for stirring the demineralized water of input treatment reagent.

4. The boiler chemical water treatment system according to claim 3, wherein: the stirring main rod (31) and the stirring auxiliary rod (32) are respectively provided with a plurality of stirring blades (33).

5. The boiler chemical water treatment system according to claim 1, wherein: the treatment system further comprises a sewage draining device (6), wherein the sewage draining device (6) is used for draining sediments in the reaction box (1).

6. The boiler chemical water treatment system according to claim 5, wherein: waste fitting discharging (6) are including honeycomb duct (61), blow off pipe (62) and water valve (63), honeycomb duct (61) intercommunication is provided with many on the diapire of reaction box (1), the one end that reaction box (1) were kept away from in honeycomb duct (61) all communicates with blow off pipe (62), water valve (63) set up on blow off pipe (62), water valve (63) are used for controlling the break-make of blow off pipe (62).

7. The boiler chemical water treatment system according to claim 1, wherein: a first booster water pump (121) is arranged on the water inlet pipe (12), and the first booster water pump (121) is used for pumping water in the water inlet pipe (12) into the reaction box (1); and a second booster water pump (131) is arranged on the water outlet pipe (13), and the second booster water pump (131) is used for pumping water in the water outlet pipe (13) into the boiler (5).

8. The boiler chemical water treatment system according to claim 3, wherein: can dismantle between the output shaft of stirring mobile jib (31) and motor (21) and be connected, be provided with connecting sleeve (7) on stirring mobile jib (31), the fixed connecting rod (8) that is provided with on the output shaft of motor (21), the one end of the output shaft of motor (21) is kept away from in connecting sleeve (7) is pegged graft in connecting sleeve (8), be provided with fixing bolt (71) on connecting sleeve (7), fixing bolt (71) screw thread is worn to establish on connecting sleeve (7) and connecting rod (8).