CN219955305U - Temperature reducing structure of boiler reheater - Google Patents

Abstract

The utility model relates to the technical field of a reheater temperature reduction system, in particular to a temperature reduction structure of a boiler reheater, which comprises a cooling water tank, wherein a serpentine bent pipe is arranged in the cooling water tank, one side of the cooling water tank is provided with a cooling cylinder, a straight pipe is fixedly connected between the serpentine bent pipe and the cooling cylinder, the device can achieve great cooling after high-temperature steam enters the cooling water tank through the serpentine bent pipe for cooling, a temperature sensor arranged in the straight pipe is used for monitoring the high-temperature steam, when the temperature does not reach the standard, a cold air spray pipe in the cooling cylinder is used for primary cooling, then the steam and the cold air are discharged after being fully fused and cooled by a fan, after heat exchange is carried out on the cooling water, the cooling water enters a water storage tank through a water return pipe, the cooling water is cooled by a cooling assembly, the cooling assembly is used for stirring the cooling water, and the cooling water is pumped into the cooling water tank through a water pumping pipe for discharging, so that the cooling water is cooled by a water supply pipe, and the effect of circulating refrigeration is achieved, and the effect of fully cooling the high-temperature steam is ensured.

Description

Temperature reducing structure of boiler reheater

Technical Field

The utility model relates to the technical field of reheater temperature reduction systems, in particular to a temperature reduction structure of a boiler reheater.

Background

In the existing steam reheating system of the coal-fired generator set in the thermal power generation industry, a reheater temperature reducing system is adopted, and the temperature of steam at the outlet part of the low-temperature reheater is reduced so as to achieve the purpose of reducing the temperature of steam at the outlet of the high-temperature reheater, and the ageing and damage of pipeline materials caused by the overtemperature of the steam at the outlet of the high-temperature reheater are avoided.

According to the patent document with the application number of CN216281337U, the product comprises a temperature reduction cylinder body, a temperature reduction water spray pipe with spray holes extends into the cylinder body and is mixed with high-temperature steam in the cylinder body to adjust the temperature of the high-temperature steam, the spray holes of the temperature reduction water spray pipe are a plurality of slit spray holes, the slit spray holes are slit type long flat holes with the width of 1.0mm and the length of 30-40 mm, and the long flat holes are set to be 30-degree spray angles with the inner part small and the outer part large. Although the two-stage cooling can be carried out through the two warm water spray pipes in the above patent, the cooling time is too short, which possibly leads to insufficient cooling, and the temperature of the discharged gas is too high, so that the discharged gas is inconvenient to discharge.

Disclosure of Invention

The utility model aims to provide a temperature reducing structure of a boiler reheater, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a boiler reheater's temperature reducing structure, includes the cooling water tank, be equipped with the snakelike return bend in the cooling water tank, the cooling water tank outer wall is worn out at the both ends of snakelike return bend, cooling water tank one side is equipped with the cooling barrel, the end of giving vent to anger of snakelike return bend is linked together through straight tube and cooling barrel, install temperature sensor in the straight tube, be equipped with cold wind spray tube in the cooling barrel, one side that straight tube was kept away from to the cold wind spray tube is equipped with the fan, the outer wall of fan and the inner wall fixed connection of cooling barrel, the cooling water tank lower extreme is equipped with the water storage tank, water storage tank upper surface one side is equipped with the air release subassembly, air release subassembly is used for discharging gas and alleviates the atmospheric pressure in the water storage tank, water storage tank upper surface central authorities department is equipped with the refrigeration subassembly, the jet end of refrigeration subassembly runs through the water storage tank outer wall and extends to its inside, water storage tank bottom both sides are equipped with the stirring subassembly, the stirring subassembly is used for stirring the cooling water, water tank one side outer wall is fixed with the safety cover, fixed mounting has the water pump in the safety cover, the water tank lower extreme is provided with the water pipe, the airtight and the water tank is communicated with the cooling water storage tank and one side is kept away from the airtight water storage tank and is connected for cooling down one side.

Preferably, the refrigerating assembly comprises a refrigerator, the refrigerator is connected to the upper surface of the water storage tank through a bolt, the output end of the refrigerator is connected with a conveying pipe, the other end of the conveying pipe penetrates through the box body at the top end of the water storage tank and is connected with an E-shaped cold air pipe, a plurality of cold air spray holes are formed in the outer wall of the bottom end of the E-shaped cold air pipe, and the two ends of the conveying pipe are respectively connected with the refrigerator and the E-shaped cold air pipe in a sealing mode.

Preferably, the two stirring assemblies comprise rotating motors, the two rotating motors are connected to the lower surface of the water storage tank through bolts, and the executing end of each rotating motor penetrates through the wall body of the water storage tank and is fixedly connected with a stirring rod.

Preferably, the water pumping port of the water pump is connected with a water pumping pipe in a sealing way, the other end of the water pumping pipe penetrates through the side wall of the water storage tank and extends to the inside of the water storage tank, the water outlet of the water pump is connected with a water delivery pipe in a sealing way, and the top end of the water delivery pipe penetrates through the shell of the protective cover and is communicated with the top end of the cooling water tank.

Preferably, the air leakage component comprises a cover cap, the cover cap is located the upper surface of water storage tank, the through-hole has been seted up to water storage tank upper surface below being located the cover cap, the welding has the dead lever in the middle of the cover cap lower surface, the bottom of dead lever passes water storage tank fixed connection fixed block, the fixed block upper surface is located the dead lever both sides and is equipped with the spring, the both ends of spring are in the inner wall fixed connection of fixed block and water storage tank respectively, a plurality of air leakage holes have all been seted up between being located dead lever and two springs on the fixed block.

Preferably, a cold air spray hole is formed in the outer wall of the top end of the cold air spray pipe, the bottom end of the cold air spray pipe penetrates through the cooling cylinder body to be connected with a cold air pipe in a sealing mode, and an electromagnetic valve is installed on the cold air pipe.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model discloses a device can reach the cooling of very big degree after high temperature steam enters into the cooling water tank through snakelike return bend and cools down, the temperature sensor that sets up in through the straight tube monitors high temperature steam, when the temperature is not up to standard, it carries out at once cooling to it through the air conditioning spray tube in the cooling barrel, it discharges after fully merging the cooling to steam and air conditioning by the fan again, enter into the water storage tank through the wet return after cooling water carries out the heat exchange, the rethread refrigeration subassembly cools down cooling water, stirring subassembly stirs the cooling water, it is gone into to the cooling water tank by the water supply pipe internal discharge, circulation refrigeration has been played to ensure the effect of fully cooling down high temperature steam through the drinking-water pipe extraction cooling water.

Drawings

FIG. 1 is a plan view of the overall structure of the present utility model;

FIG. 2 is an elevational view of the stirring assembly of the present utility model;

FIG. 3 is an elevation view of a refrigeration assembly according to the present utility model;

FIG. 4 is an elevational view of the venting assembly of the present utility model;

fig. 5 is an enlarged view of the utility model at a.

In the figure: 1. serpentine bent pipe; 101. a straight pipe; 102. a fan; 2. a cooling water tank; 201. a water return pipe; 202. a water storage tank; 203. a through hole; 3. a refrigeration assembly; 301. a refrigerator; 302. a delivery tube; 303. e-type cold air pipe; 304. cold air spray holes; 4. a venting assembly; 401. capping; 402. a fixed rod; 403. a spring; 404. a fixed block; 405. a vent hole; 5. a protective cover; 501. a water pumping pipe; 502. a water supply pipe; 503. a water pump; 6. a stirring assembly; 601. a stirring rod; 602. a rotating electric machine; 7. a cold air spray pipe; 701. cold air spray holes; 8. a cold air pipe; 801. an electromagnetic valve; 9. a temperature sensor; 10. and cooling the cylinder.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Several embodiments of the utility model are presented. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-5, a temperature reducing structure of a boiler reheater comprises a cooling water tank 2, wherein a serpentine bent pipe 1 is arranged in the cooling water tank 2, a smoke outlet of a boiler is connected at the joint of the serpentine bent pipe 1, two ends of the serpentine bent pipe 1 penetrate out of the outer wall of the cooling water tank 2, a cooling cylinder 10 is arranged at one side of the cooling water tank 2, an air outlet end of the serpentine bent pipe 1 is communicated with the cooling cylinder 10 through a straight pipe 101, a temperature sensor 9 is arranged in the straight pipe 101, the model of the temperature sensor 9 is WRP-130, a cold air spray pipe 7 is arranged in the cooling cylinder 10, a fan 102 is arranged at one side of the cold air spray pipe 7 far away from the straight pipe 101, the outer wall of the fan 102 is fixedly connected with the inner wall of the cooling cylinder 10, a cold air spray hole 701 is formed at the outer wall at the top end of the cold air spray pipe 7, the bottom end of the cold air spray pipe 7 penetrates through the cooling cylinder 10 to be hermetically connected with a cold air pipe 8, a cold air blower is connected at the joint of the cold air pipe 8, the electromagnetic valve 801 is arranged on the cold air pipe 8, the water storage tank 202 is arranged at the lower end of the cooling water tank 2, the air leakage component 4 is arranged on one side of the upper surface of the water storage tank 202, the air leakage component 4 comprises a cover cap 401, the cover cap 401 is positioned on the upper surface of the water storage tank 202, a through hole 203 is arranged below the cover cap 401 on the upper surface of the water storage tank 202, a fixed rod 402 is welded in the middle of the lower surface of the cover cap 401, the bottom end of the fixed rod 402 penetrates through the water storage tank 202 to be fixedly connected with a fixed block 404, springs 403 are arranged on the upper surface of the fixed block 404 and are respectively fixedly connected with the fixed block 404 and the inner wall of the water storage tank 202, a plurality of air leakage holes 405 are respectively arranged between the fixed rod 402 and the two springs 403 on the fixed block 404, the air leakage component 4 is used for discharging air to relieve the air pressure in the water storage tank 202, the refrigerating component 3 is arranged at the center of the upper surface of the water storage tank 202, the jet end of the refrigeration component 3 penetrates through the outer wall of the water storage tank 202 to extend into the water storage tank 202, the refrigeration component 3 comprises a refrigerator 301, the refrigerator 301 is connected to the upper surface of the water storage tank 202 through bolts, the output end of the refrigerator 301 is connected with a conveying pipe 302, the other end of the conveying pipe 302 penetrates through the box body at the top end of the water storage tank 202 and is connected with an E-type cold air pipe 303, a plurality of cold air spray holes 304 are formed in the outer wall of the bottom end of the E-type cold air pipe 303, two ends of the conveying pipe 302 are respectively connected with the refrigerator 301 and the E-type cold air pipe 303 in a sealing mode, stirring components 6 are arranged on two sides of the bottom end of the water storage tank 202, the stirring components 6 comprise rotating motors 602, the rotating motors 602 are connected to the lower surface of the water storage tank 202 through bolts, the executing end of the rotating motors 602 penetrates through the wall body of the water storage tank 202 to be fixedly connected with stirring rods 601, the stirring components 6 are used for stirring cooling water, the outer wall of one side of the water storage tank 202 is fixedly connected with a protecting cover 5, a water pump 503 is fixedly arranged in the protecting cover 5, a water pumping port of the water pump 503 is connected with a water pumping pipe 501 in a sealing mode, the water pumping port of the water pumping pipe 501 is connected with the water pumping pipe 501 in a sealing mode, the other end of the water pumping pipe 501 penetrates through the side wall of the water storage tank 202 to the inner portion of the water storage tank, the water tank is connected with a water outlet of the water pipe 502 in a sealing mode, the water pipe 502 is connected with the water pipe 2 in a sealing mode, the top of the protecting pipe 5 and the top end of the protecting pipe 2 penetrates through the top end of the top of the protecting cover 2 and the top end of the protecting cover 2 and the water tank 201 is communicated with the water tank 201 and the water tank 2.

When the boiler reheater starts to work to generate high-temperature steam, a worker starts an electric element in the device, when the high-temperature steam enters the cooling water tank 2 through the serpentine bent pipe 1, the high-temperature steam in the serpentine bent pipe 1 is cooled through cooling water arranged in the device, after the cooling water in the cooling water tank 2 exchanges heat with the high-temperature steam in the serpentine bent pipe 1, the cooling water is conveyed into the water storage tank 202 through the water return pipe 201, the refrigerator 301 works to generate cold air, the output end of the refrigerator works to the conveying pipe 302 to output the cold air, the conveying pipe 302 filled with the cold air conveys the cold air into the E-shaped cold air pipe 303, the E-shaped cold air pipe 303 sprays the cold air into the cooling water through the cold air spray hole 304 to cool the cooling water, the rotating motor 602 operated at the moment drives the stirring rod 601 to rotate, the cooling water is stirred through the rotating stirring rod 601, and the cold air can be sufficiently cooled, the refrigerator 301 continuously conveys cold air into the water storage tank 202, when the cold air fills the water storage tank 202, the cap 401 is jacked up to move upwards, the cap 401 which moves upwards drives the fixing rod 402 to move upwards, the fixing rod 402 which moves upwards drives the fixing block 404 to move upwards, the moving fixing block 404 extrudes the spring 403, the cold air is discharged from the air discharge hole 405 on the fixing block 404, meanwhile, the water pump 503 works, the water pumping pipe 501 starts to pump the cooling water, and then the cooling water tank 2 is conveyed into the water pumping pipe 502, so as to circulate the cooling water, high temperature steam after one cooling enters the straight pipe 101 from the serpentine bent pipe 1, after the temperature in the straight pipe 101 is detected by the temperature sensor 9, when the detected temperature is higher than a set value, the external controller sends a signal to open the electromagnetic valve 801, and after the electromagnetic valve 801 is opened, the cold air pipe 8 carries the air conditioning to cold air spray pipe 7 in, cold air spray pipe 7 sprays cold air in to cooling barrel 10 through cold air orifice 701 and carries out secondary cooling, through the rotation of fan 102, fuse high temperature steam and air conditioning and reach abundant cooling, thereby realize that high temperature steam enters into cooling water tank 2 through serpentine return pipe 1 and cools down, monitor high temperature steam through temperature sensor 9 that sets up in straight tube 101, when the temperature is not up to standard, it carries out at primary cooling through the air conditioning spray pipe in the cooling barrel 10, discharge after fully fuse cooling steam and air conditioning by fan 102, enter into water storage tank 202 through wet return 201 after the cooling water carries out heat exchange, cool down through refrigerating assembly 3, stirring assembly 6 stirs the desuperheating water, extract cooling water by water pipe 501 and be discharged into cooling water tank 2, circulation refrigeration has been played, thereby ensure the effect of fully cooling high temperature steam.

The working flow of the utility model is as follows: when the boiler reheater starts to work to generate high-temperature steam, a worker starts an electric element in the device, when the high-temperature steam enters the cooling water tank 2 through the serpentine bent pipe 1, the high-temperature steam in the serpentine bent pipe 1 is cooled through cooling water arranged in the device, after the cooling water in the cooling water tank 2 exchanges heat with the high-temperature steam in the serpentine bent pipe 1, the cooling water is conveyed into the water storage tank 202 through the water return pipe 201, the refrigerator 301 works to generate cold air, the output end of the refrigerator works to the conveying pipe 302 to output the cold air, the conveying pipe 302 filled with the cold air conveys the cold air into the E-shaped cold air pipe 303, the E-shaped cold air pipe 303 sprays the cold air into the cooling water through the cold air spray hole 304 to cool the cooling water, the rotating motor 602 operated at the moment drives the stirring rod 601 to rotate, the cooling water is stirred through the rotating stirring rod 601, and the cold air can be sufficiently cooled, the refrigerator 301 continuously conveys cold air into the water storage tank 202, when the cold air fills the water storage tank 202, the cap 401 is jacked up to move upwards, the cap 401 which moves upwards drives the fixing rod 402 to move upwards, the fixing rod 402 which moves upwards drives the fixing block 404 to move upwards, the moving fixing block 404 extrudes the spring 403, the cold air is discharged from the air discharge hole 405 on the fixing block 404, meanwhile, the water pump 503 works, the water pumping pipe 501 starts to pump the cooling water, and then the cooling water tank 2 is conveyed into the water pumping pipe 502, so as to circulate the cooling water, high temperature steam after one cooling enters the straight pipe 101 from the serpentine bent pipe 1, after the temperature in the straight pipe 101 is detected by the temperature sensor 9, when the detected temperature is higher than a set value, the external controller sends a signal to open the electromagnetic valve 801, and after the electromagnetic valve 801 is opened, the cold air pipe 8 conveys cold air into the cold air spray pipe 7, the cold air spray pipe 7 sprays cold air into the cooling cylinder 10 through the cold air spray hole 701 to cool down secondarily, and high-temperature steam and the cold air are fused through rotation of the fan 102 to cool down fully.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a boiler reheater's temperature reducing structure, includes cooling water tank (2), its characterized in that: the cooling water tank (2) is internally provided with a serpentine bent pipe (1), two ends of the serpentine bent pipe (1) penetrate out of the outer wall of the cooling water tank (2), one side of the cooling water tank (2) is provided with a cooling barrel (10), the air outlet end of the serpentine bent pipe (1) is communicated with the cooling barrel (10) through a straight pipe (101), a temperature sensor (9) is arranged in the straight pipe (101), the cooling barrel (10) is internally provided with a cold air spray pipe (7), the lower end of the cooling water tank (2) is provided with a water storage tank (202), one side of the upper surface of the water storage tank (202) is provided with a gas discharge assembly (4), the gas discharge assembly is used for discharging gas to relieve the air pressure in the water storage tank (202), the central part of the upper surface of the water storage tank (202) is provided with a refrigerating assembly (3), the air outlet end of the refrigerating assembly (3) penetrates through the outer wall of the water storage tank (202) to the inside, two sides of the bottom of the water storage tank (202) are provided with stirring assemblies (6), the stirring assemblies (6) are used for stirring the cooling water, one side of the water storage tank (202) is fixedly provided with a water storage tank (5), one side of the water storage tank (5) is fixedly provided with a water return pump (201), the water return pipe (201) is communicated with the cooling water tank (2) and is in airtight connection, and one end, far away from the cooling water tank (2), of the water return pipe (201) is communicated with the outer wall of one side of the water storage tank (202) and is in airtight connection.

2. The boiler reheater temperature reducing structure as set forth in claim 1, wherein: the refrigerating assembly (3) comprises a refrigerator (301), the refrigerator (301) is connected to the upper surface of the water storage tank (202) through bolts, the output end of the refrigerator (301) is connected with a conveying pipe (302), the other end of the conveying pipe (302) penetrates through the box body at the top end of the water storage tank (202) and is connected with an E-shaped cold air pipe (303), a plurality of cold air spray holes (304) are formed in the outer wall of the bottom end of the E-shaped cold air pipe (303), and two ends of the conveying pipe (302) are respectively connected with the refrigerator (301) and the E-shaped cold air pipe (303) in a sealing mode.

3. The boiler reheater temperature reducing structure as set forth in claim 1, wherein: two stirring subassembly (6) all include rotating electrical machines (602), two rotating electrical machines (602) all pass through bolted connection at water storage tank (202) lower surface, the actuating end of rotating electrical machines (602) runs through wall fixedly connected with puddler (601) of water storage tank (202).

4. The boiler reheater temperature reducing structure as set forth in claim 1, wherein: the water pumping port of the water pump (503) is connected with a water pumping pipe (501) in a sealing mode, the other end of the water pumping pipe (501) penetrates through the side wall of the water storage tank (202) to extend into the water storage tank, the water outlet of the water pump (503) is connected with a water delivery pipe (502) in a sealing mode, and the top end of the water delivery pipe (502) penetrates through the shell of the protection cover (5) and is communicated with the top end of the cooling water tank (2).

5. The boiler reheater temperature reducing structure as set forth in claim 1, wherein: the air leakage assembly (4) comprises a cover cap (401), the cover cap (401) is located the upper surface of the water storage tank (202), through holes (203) are formed in the position, below the cover cap (401), of the upper surface of the water storage tank (202), a fixing rod (402) is welded in the middle of the lower surface of the cover cap (401), the bottom end of the fixing rod (402) penetrates through the water storage tank (202) to be fixedly connected with a fixing block (404), springs (403) are arranged on the upper surface of the fixing block (404) and are arranged on two sides of the fixing rod (402), two ends of each spring (403) are fixedly connected with the inner walls of the fixing block (404) and the water storage tank (202) respectively, and a plurality of air leakage holes (405) are formed in the fixing block (404) between the fixing rod (402) and the two springs (403).

6. The boiler reheater temperature reducing structure as set forth in claim 1, wherein: one side that straight tube (101) was kept away from to cold wind spray tube (7) is equipped with fan (102), the outer wall of fan (102) and the inner wall fixed connection of cooling barrel (10), cold wind orifice (701) have been seted up to cold wind spray tube (7) top outer wall, cold wind spray tube (7) bottom runs through cooling barrel (10) airtight connection cold wind pipe (8), install solenoid valve (801) on cold wind pipe (8).