CN212127820U

CN212127820U - Raw water filtering device for boiler

Info

Publication number: CN212127820U
Application number: CN202020686195.0U
Authority: CN
Inventors: 周志杰; 吴玉国
Original assignee: Changzhou Warren Thermal Power Co ltd
Current assignee: Changzhou Warren Thermal Power Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-12-11
Anticipated expiration: 2030-04-29

Abstract

The utility model relates to a raw water filtering device for a boiler, which comprises a water distribution pipe and a water collection pipe, wherein the water distribution pipe is connected with a water inlet pipe, a plurality of water purifying cylinders are arranged between the water distribution pipe and the water collection pipe, the water purifying cylinders are respectively connected with the water distribution pipe and the water collection pipe through a first branch pipe and a second branch pipe, filtering pieces are arranged in the water purifying cylinders, and the water collection pipe is connected with a water outlet pipe; filter core pipe, first inner ring and second inner ring that filter includes coaxial coupling and distributes from inside to outside in proper order in the water purification section of thick bamboo, core pipe and first pillar intercommunication, all seted up a plurality of through-holes on core pipe, first inner ring and the second inner ring, it has quartz sand to fill between core pipe and the first inner ring, it has active carbon to fill between first inner ring and the second inner ring, water purification section of thick bamboo nozzle threaded connection has sealed lid, the sealed inside wall of covering is equipped with the elastic sealing plug in one end embedding core pipe. The utility model discloses have the effect that reduces impurity content in the raw water.

Description

Raw water filtering device for boiler

Technical Field

The utility model belongs to the technical field of boiler water treatment's technique and specifically relates to a raw water filter equipment for boiler is related to.

Background

The steam power generation is that a boiler is heated by a burner, so that water in the boiler is changed into steam, and a turbine impeller is pushed to rotate by virtue of the expansion force of the steam to drive a generator to generate power.

Chinese patent No. CN105781642B discloses a steam boiler system with power generation function and its working method, wherein a high pressure water pump is connected to a boiler water inlet pipe of a tubular boiler, a boiler steam output pipe of the tubular boiler is connected to a steam turbine, the steam turbine is connected to a generator and a steam turbine exhaust pipe, the steam turbine exhaust pipe is connected to a flue gas superheater, the flue gas superheater is connected to a flue gas waste heat recoverer through a low temperature flue gas pipe, the flue gas waste heat recoverer is respectively connected to an input water pipe, a waste heat water pipe and a flue gas exhaust pipe, and the waste heat water pipe is circularly connected to the high pressure water pump; the tubular boiler is also connected with a flue gas superheater through a boiler flue gas pipe, the flue gas superheater is connected with a condensate pump through a condensate pipe, and the condensate pump is connected with the flue gas superheater through a spray water pipe.

In the actual work process, water preheats through flue gas waste heat recoverer from the input water pipe, rises the back through the waste heat water pipe and connects to high pressure water pump, after the pressure boost of high pressure water pump, gets into tubular boiler through the boiler inlet tube, but because the boiler water adopts the raw water usually, does not pass through artificial purification treatment for the aquatic contains more impurity, leads to the boiler scale deposit after using for a long time easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a raw water filter equipment for boiler, which has the effect of reducing the impurity content in the raw water.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a raw water filtering device for a boiler comprises a water distribution pipe and a water collection pipe, wherein a water inlet pipe is connected to the water distribution pipe, a plurality of water purifying cylinders are arranged between the water distribution pipe and the water collection pipe and are respectively connected with the water distribution pipe and the water collection pipe through a first branch pipe and a second branch pipe, filtering pieces are arranged in the water purifying cylinders, and a water outlet pipe is connected to the water collection pipe;

the filter piece includes core pipe, first inner ring and the second inner ring that coaxial coupling distributes in proper order in the water purification section of thick bamboo and from inside to outside, core pipe and first pillar intercommunication, a plurality of through-holes have all been seted up on core pipe, first inner ring and the second inner ring, it has quartz sand to fill between core pipe and the first inner ring, it has active carbon to fill between first inner ring and the second inner ring, water purification section of thick bamboo tube mouth threaded connection has sealed lid, the sealed inside wall that covers is equipped with the elastic sealing plug of one end embedding core intraductal.

By adopting the technical scheme, raw water is input from the water inlet pipe, is shunted into the core pipe through the shunt pipe, is collected into the water collecting pipe through the second branch pipe after being sequentially filtered by quartz sand and adsorbed by active carbon, and is finally discharged from the water outlet pipe, so that the content of impurities in the raw water is reduced, and the possibility of scaling of a boiler is reduced; the raw water is shunted and filtered after being input, so that the water purification speed is accelerated; an operator can unscrew the sealing cover, and take out the quartz sand and the activated carbon in the water purifying cylinder for cleaning or replacement, so that the water purifying effect is ensured, and the operation is convenient and flexible.

The present invention may be further configured in a preferred embodiment as: the water inlet pipe is connected with a booster pump.

Through adopting above-mentioned technical scheme, utilize the booster pump to increase the pressure that raw water was carried for raw water is filtering and absorptive speed.

The present invention may be further configured in a preferred embodiment as: the diameter of the first branch pipe is smaller than that of the second branch pipe, a water drain pipe is connected to the water distribution pipe, and a pressure relief valve is arranged on the water drain pipe.

By adopting the technical scheme, the pipe diameter difference between the diameters of the first branch pipe and the second branch pipe enables raw water to be quickly discharged after being filtered and adsorbed; when the pressure in the pipeline is overlarge, an operator opens the pressure relief valve to discharge part of water in the water distribution pipe, so that the safety of the pipeline is guaranteed.

The present invention may be further configured in a preferred embodiment as: and steel wire filter screens are arranged on the outer wall of the core pipe, the inner wall of the first inner ring and the inner wall of the second inner ring.

Through adopting above-mentioned technical scheme, the steel wire filter screen filters raw water on the one hand, and on the other hand has reduced the possibility that quartz sand and active carbon spill from the through-hole.

The present invention may be further configured in a preferred embodiment as: and one ends of the first inner ring and the second inner ring, which are far away from the cylinder bottom of the water purifying cylinder, are respectively provided with a rubber sealing ring.

Through adopting above-mentioned technical scheme, the leakproofness between first inner ring and second inner ring and sealed lid has been increased to the rubber seal ring, has reduced the raw water and has not filtered and the possibility of flowing out in the clearance.

The present invention may be further configured in a preferred embodiment as: the water-saving device is characterized in that one end, far away from the water collecting pipe, of the water outlet pipe is connected with a water storage tank, the side wall of the water storage tank is connected with a dosing tank through a first water pipe, an electromagnetic valve is arranged on the first water pipe, the side wall of the dosing tank is provided with a water discharging pipe, and the water discharging pipe is connected with a water pump.

By adopting the technical scheme, an operator adds the scale inhibitor into the dosing tank to remove scale and prevent the formation of scale, thereby reducing the possibility of scaling of the boiler and being beneficial to improving the heat exchange efficiency of the boiler; when the dosing tank is full of water, the electromagnetic valve is closed, and the filtered raw water is input into the water storage tank to be stored without suspending the previous step, so that the filtration is continuously carried out, and the raw water filtration efficiency is favorably improved.

The present invention may be further configured in a preferred embodiment as: the water outlet end of the water pump is connected with a second water delivery pipe, the second water delivery pipe is in threaded connection with a water purifying pipe, and two filter screens are arranged in the water purifying pipe.

Through adopting above-mentioned technical scheme, the filter screen filters the raw water after adding the medicine, has further reduced the impurity in the raw water.

The present invention may be further configured in a preferred embodiment as: the water purification device is characterized in that a drain pipe is arranged on the water purification pipe, the water inlet end of the drain pipe is positioned between two adjacent filter screens, and the water outlet end of the drain pipe is in threaded connection with a plug cover.

Through adopting above-mentioned technical scheme, when the operator utilizes the water to wash the filter screen, unscrew the blanking cover for the water that washes flows from the blow off pipe, convenient and fast.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the impurity content in the raw water is reduced, the possibility of scaling of the boiler is reduced, the heat exchange efficiency of the boiler is improved, and the active carbon and the quartz sand can be replaced, so that the filtering and adsorbing effect of the raw water is ensured;

2. the stability and the safety of the pressure in the pipeline are ensured by the matching of the drain pipe and the pressure relief valve; the arrangement of the water storage tank and the dosing tank enables the former filtering and the latter dosing procedures of raw water to be carried out continuously, and the raw water filtering efficiency is improved.

Drawings

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

Fig. 2 is a schematic structural view for embodying the first branch pipe and the second branch pipe in the present embodiment.

Fig. 3 is an enlarged view of a in fig. 2.

FIG. 4 is a schematic structural view of the embodiment for embodying the downcomer and the relief valve.

Fig. 5 is a schematic structural diagram of the water purifying pipe in the embodiment.

In the figure, 11, a water diversion pipe; 111. a water inlet pipe; 12. a water collection pipe; 121. a water outlet pipe; 13. a water purifying cylinder; 131. a first branch pipe; 132. a second branch pipe; 2. a filter member; 20. a core tube; 21. a first inner ring; 22. a second inner ring; 23. a through hole; 24. quartz sand; 25. activated carbon; 26. a sealing cover; 261. an elastic sealing plug; 3. a booster pump; 31. a drain pipe; 32. a pressure relief valve; 33. a steel wire filter screen; 34. a rubber seal ring; 4. a water storage tank; 41. a first water delivery pipe; 411. an electromagnetic valve; 42. a dosing box; 421. a drain pipe; 43. a water pump; 44. a second water delivery pipe; 45. a water purifying pipe; 451. a filter screen; 46. a blow-off pipe; 461. and (7) blocking the cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, for the utility model discloses a raw water filtering device for boiler, including distributive pipe 11, collector pipe 12 and a plurality of water purification cartridge 13 that are located between distributive pipe 11 and collector pipe 12 that are parallel to each other, a plurality of water purification cartridge 13 parallel distribution and perpendicular to distributive pipe 11.

As shown in fig. 2 and 3, all be equipped with in each water purification section of thick bamboo 13 and filter piece 2, filter piece 2 including coaxial coupling in water purification section of thick bamboo 13 and from inside to outside core pipe 20 that distributes in proper order, first inner ring 21 and second inner ring 22, core pipe 20, all seted up a plurality of through-holes 23 on first inner ring 21 and the second inner ring 22, all be equipped with steel wire filter screen 33 on core pipe 20 outer wall, first inner ring 21 inner wall and the second inner ring 22 inner wall, the one end that water purification section of thick bamboo 13 bobbin base was kept away from to first inner ring 21 and second inner ring 22 all is equipped with rubber seal 34.

As shown in fig. 3, quartz sand 24 is filled between the core tube 20 and the first inner ring 21, activated carbon 25 is filled between the first inner ring 21 and the second inner ring 22, and the particle sizes of the quartz sand 24 and the activated carbon 25 are both smaller than the pore size of the corresponding steel wire filter screen 33, so as to plug the quartz sand 24 or the activated carbon 25, thereby enabling the through hole 23 to adopt a large pore arrangement and ensuring the flow rate of raw water; a space is reserved between the second inner ring 22 and the inner wall of the water purification cylinder 13, a sealing cover 26 is in threaded connection with the opening of the water purification cylinder 13, the rubber sealing ring 34 is tightly abutted to the sealing cover 26, the passing of raw water from a gap between the rubber sealing ring 34 and the sealing cover 26 is reduced, and the inner wall of the sealing cover 26 is provided with an elastic sealing plug 261 with one end embedded into the core pipe 20 so as to plug the opening of the core pipe 20. After the quartz sand 24 and the activated carbon 25 are used for a long time, an operator can unscrew the sealing cover 26 and take out and replace the quartz sand 24 and the activated carbon 25 simply and quickly.

As shown in fig. 2 and 3, the water dividing pipe 11 is provided with a water inlet pipe 111 and first branch pipes 131 corresponding to the water purifying cartridges 13, the water inlet pipe 111 is provided with a booster pump 3, and the first branch pipes 131 are connected with one end of the core pipe 20 far away from the elastic sealing plug 261; as shown in fig. 4, a drain pipe 31 is connected to the bypass 11, and a relief valve is attached to the drain pipe 31.

As shown in fig. 2, the water collecting pipe 12 is provided with a water outlet pipe 121 and second branch pipes 132 corresponding to the respective water purifying cartridges 13, the diameter of the second branch pipes 132 is larger than that of the first branch pipes 131, and the second branch pipes 132 are connected to the water purifying cartridges 13.

As shown in fig. 1, one end of the water outlet pipe 121 far away from the water collecting pipe 12 is connected with the water storage tank 4, the water outlet end of the water outlet pipe 121 is located at the upper end of the water storage tank 4, the side wall of the water storage tank 4 is connected with the dosing box 42 through the first water pipe 41, the water inlet end of the first water pipe 41 is located at the lower end of the water storage tank 4, the first water pipe 41 is provided with the electromagnetic valve 411 for controlling the opening and closing of the first water pipe 41, the side wall of the dosing box 42 is provided with the water outlet pipe 421, one end of the water outlet pipe 421 far away from the dosing box 42 is connected with.

As shown in fig. 5, one end of the second water pipe 44 far away from the water pump 43 is in threaded connection with a water purifying pipe 45, two filter screens 451 axially distributed at intervals are arranged in the water purifying pipe 45, a blow-off pipe 46 is arranged on the lower side of the water purifying pipe 45, the water inlet end of the blow-off pipe 46 is positioned in the middle of the two filter screens 451, the water outlet end of the blow-off pipe 46 is in threaded connection with a blocking cover 461, after the filter screens 451 are used for a long time, an operator can disassemble the water purifying pipe 45, the blocking cover 461 is unscrewed, the filter screens 451 are reversely washed by clean water, and the washed sewage flows.

The implementation principle of the embodiment is as follows: raw water in the water inlet pipe 111 is pressurized by the booster pump 3 and then is input into the water distribution pipe 11, then is input into the core pipe 20 through each first branch pipe 131, the raw water flows out from each through hole 23 on the core pipe 20 under water pressure, impurities such as suspended matters, sludge, colloid and the like in the raw water are intercepted and filtered by the quartz sand 24, the activated carbon 25 and each steel wire filter screen 33, and in the process, if the pressure in the pipeline is too high, an operator opens the pressure relief valve, so that part of the raw water in the water distribution pipe 11 flows out, and the pipeline safety is guaranteed.

The filtered raw water is collected into the water collecting pipe 12 through each second branch pipe 132, and then flows into the water storage tank 4 through the water outlet pipe 121, the raw water in the water storage tank 4 flows into the dosing tank 42 through the first water conveying pipe 41, when the dosing tank 42 is full of water, the electromagnetic valve 411 is closed, the filtered raw water is continuously input into the water storage tank 4 for storage, an operator adds the scale inhibitor into the dosing tank, the scale inhibitor disperses the insoluble inorganic salt in the water, and prevents or interferes with the precipitation and scaling functions of the insoluble inorganic salt on the metal surface, after the dosing is finished, the water pump 43 is operated to pump out the raw water in the dosing tank 42, the raw water is filtered by the filter screen 451 and then input into the boiler, after the water in the dosing tank 42 is pumped out, the electromagnetic valve 411 is opened, the water is injected into the dosing tank 42 again, and the dosing steps are repeated, so that.

After raw water is filtered layer by layer, the content of impurities in the raw water is reduced, and the raw water is matched with inorganic salt to disperse and interfere after dosing, so that the possibility of scaling of a boiler is reduced, the heat exchange efficiency of the boiler is increased, and the service life of the boiler is prolonged.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A raw water filter equipment for boiler which characterized in that: the water purifier comprises a water distribution pipe (11) and a water collection pipe (12), wherein the water distribution pipe (11) is connected with a water inlet pipe (111), a plurality of water purifying cylinders (13) are arranged between the water distribution pipe (11) and the water collection pipe (12), the water purifying cylinders (13) are respectively connected with the water distribution pipe (11) and the water collection pipe (12) through a first branch pipe (131) and a second branch pipe (132), filter pieces (2) are arranged in the water purifying cylinders (13), and the water collection pipe (12) is connected with a water outlet pipe (121);

filter piece (2) including coaxial coupling in water purification section of thick bamboo (13) and from inside to outside core pipe (20), first inner ring (21) and the second inner ring (22) that distributes in proper order, core pipe (20) and first branch pipe (131) intercommunication, a plurality of through-holes (23) have all been seted up on core pipe (20), first inner ring (21) and second inner ring (22), it has quartz sand (24) to fill between core pipe (20) and first inner ring (21), it has activated carbon (25) to fill between first inner ring (21) and second inner ring (22), water purification section of thick bamboo (13) section of thick bamboo mouth threaded connection has sealed lid (26), sealed lid (26) inner wall is equipped with elasticity sealing plug (261) that one end imbeds in core pipe (20).

2. The raw water filtering apparatus for a boiler as set forth in claim 1, wherein: the water inlet pipe (111) is connected with a booster pump (3).

3. The raw water filtering apparatus for a boiler as set forth in claim 2, wherein: the diameter of the first branch pipe (131) is smaller than that of the second branch pipe (132), a water drain pipe (31) is connected to the water distribution pipe (11), and a pressure relief valve (32) is arranged on the water drain pipe (31).

4. The raw water filtering apparatus for a boiler as set forth in claim 1, wherein: and steel wire filter screens (33) are arranged on the outer wall of the core pipe (20), the inner wall of the first inner ring (21) and the inner wall of the second inner ring (22).

5. The raw water filtering apparatus for a boiler as set forth in claim 1, wherein: and rubber sealing rings (34) are arranged at the ends, far away from the bottom of the water purifying cylinder (13), of the first inner ring (21) and the second inner ring (22).

6. The raw water filtering apparatus for a boiler as set forth in claim 1, wherein: the water-saving device is characterized in that one end, far away from the water collecting pipe (12), of the water outlet pipe (121) is connected with a water storage tank (4), the side wall of the water storage tank (4) is connected with a dosing tank (42) through a first water conveying pipe (41), an electromagnetic valve (411) is arranged on the first water conveying pipe (41), the side wall of the dosing tank (42) is provided with a drain pipe (421), and a water pump (43) is connected onto the drain pipe (421).

7. The raw water filtering apparatus for a boiler as set forth in claim 6, wherein: the water outlet end of the water pump (43) is connected with a second water pipe (44), the second water pipe (44) is connected with a water purifying pipe (45) in a threaded mode, and two filter screens (451) are arranged in the water purifying pipe (45).

8. The raw water filtering apparatus for a boiler as set forth in claim 7, wherein: be equipped with blow off pipe (46) on water purification pipe (45), blow off pipe (46) intake end is located between two adjacent filter screens (451), the play water end threaded connection of drain pipe (421) has blanking cover (461).