CN216909830U

CN216909830U - Boiler denitration urea spray gun convenient to adjust spray regime

Info

Publication number: CN216909830U
Application number: CN202120914972.7U
Authority: CN
Inventors: 吴小建; 王斌; 陈小辉
Original assignee: Luonan Zhongtian Yongheng Heating Co ltd
Current assignee: Luonan Zhongtian Yongheng Heating Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-07-08
Anticipated expiration: 2031-04-29

Abstract

The utility model provides a boiler denitration urea spray gun convenient for adjusting an injection range, which belongs to the technical field of denitration urea spray guns and comprises a spray head and a connecting pipe, wherein the spray head is installed at one end of the connecting pipe, two fixing blocks are fixedly connected at the end part, close to the connecting pipe, of the connecting pipe, the fixing blocks are L-shaped, a connecting column is inserted into the short arm end of each fixing block in a penetrating manner, an adjusting plate is fixedly connected at one end, close to the connecting pipe, of the connecting column, the adjusting plate is inserted into the connecting pipe, a pushing assembly for pushing the connecting column is arranged at one end, far away from the adjusting plate, of the two connecting columns, and the pushing assembly comprises two first springs and two rectangular blocks. The utility model solves the problem that when the valve is in a half-open state and a half-closed state for a long time, the filter element in the valve is always in a stressed state, and the filter element in the valve can be damaged, so that the valve cannot adjust water flow.

Description

Boiler denitration urea spray gun convenient to adjust spray regime

Technical Field

The utility model belongs to the technical field of denitration urea spray guns, and particularly relates to a boiler denitration urea spray gun convenient for adjusting the spray range.

Background

A spray gun is a device that uses a quick release of liquid or compressed air as a motive force. The spray gun is divided into a normal pressure type spray gun and a pressurized spray gun. The spray gun also comprises a pressure type spray gun, a Kale type spray gun, an automatic recovery type spray gun and the like, and the spray gun generally comprises a gun body and a gun head.

When the existing urea spray gun is used, water flow of the spray gun is generally adjusted through a valve, so that the spray range of a spray head is controlled by controlling the size of the water flow, when the valve is in a half-open state and a half-closed state for a long time, a filter element in the valve is always in a stressed state, and the filter element in the valve may be damaged, so that the valve cannot adjust the water flow, and the urea spray gun with the function of conveniently adjusting the spray range is developed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that in the prior art, when a valve is in a half-open state and a half-closed state for a long time, a filter element in the valve is always in a stressed state, and the filter element in the valve is possibly damaged, so that the valve cannot adjust water flow, and the utility model provides a boiler denitration urea spray gun convenient for adjusting an injection range.

In order to achieve the purpose, the utility model adopts the following technical scheme: a boiler denitration urea spray gun convenient for adjusting spray range comprises a spray head and a connecting pipe, wherein the spray head is installed at one end of the connecting pipe, the connecting pipe is close to two fixed blocks fixedly connected with the port, the fixed blocks are L-shaped, the short arm ends of the fixed blocks are inserted with connecting columns, one end of each connecting column close to the connecting pipe is fixedly connected with an adjusting plate, the adjusting plates are inserted in the connecting pipes, one ends of the connecting columns, far away from the adjusting plates, are provided with pushing assemblies for pushing the connecting columns, each pushing assembly comprises two first springs and two rectangular blocks, the two rectangular blocks are fixedly arranged on the two connecting columns, one ends of the rectangular blocks, close to the fixed blocks, are fixedly connected with first springs, one ends of the first springs, far away from the rectangular blocks, are fixedly connected with the fixed blocks, the connecting columns are pulled by the aid of the thrust of the first springs, one side of the two fixed blocks is provided with a limiting mechanism for limiting the rectangular block, the current operation mode is that a urea pulping system is prepared into qualified urea solution, the qualified urea solution is conveyed to a urea solution storage tank through a conveying pump, then the qualified urea solution is conveyed to urea spray guns at all parts of a boiler body through the urea pump, the urea solution is sprayed into the boiler through the urea spray guns after being pressurized by compressed air so as to achieve the flue gas denitration effect, the pressure of the spray guns is regulated to be 0.35Mpa-0.45Ppa by the current operation regulations, eight urea guns are required to be simultaneously used by the boiler body when the boiler is in full load operation so as to ensure that the emission of flue gas nitrogen oxides can only reach below 200 mg/cubic meter, the usage amount of the urea solution is large, the flag type heating surfaces, the coal economizer and the air preheater of the second and the third return strokes of the boiler accumulate ash, the boiler heating surfaces are blocked and stopped when serious, the urea spray pressure of the urea spray guns are transmitted to a central control room by a pipeline pressure transmitter of the boiler in real time, the operating personnel accurately control the injection pressure of each urea spray gun according to DCS quotation data to can be according to the accurate injection volume of urea solution of boiler real-time load control.

Stop gear includes two cylinders, two backup pads and two fixed plates, two the fixed plate is "L" shape, the fixed plate is adorned on the fixed block admittedly, the long arm end of fixed plate runs through to be inserted and is equipped with the cylinder, the cylinder is close to the one end swing joint of spliced pole and is had the backup pad, the backup pad is right triangle, cylindrical one side and rectangular block fixed connection are kept away from to the backup pad.

The two cylinders are far away from one ends of the supporting plates and are provided with rectangular plates, threaded rods penetrate through the rectangular plates, and the threaded rods are inserted in the pipes in a threaded mode.

The port department cover of connecting pipe has the hydrops ring, the hydrops ring is used for collecting the liquid that connecting pipe and water piping connection department drip, be equipped with on the hydrops ring and carry out the mounting fixed to the hydrops ring.

The fixing piece comprises two supporting blocks, two connecting blocks, two push rods, two limiting blocks and two connecting plates, the two connecting plates are fixedly arranged on the pipe, the two supporting blocks are fixedly arranged on the liquid accumulation ring, one side, far away from the liquid accumulation ring, of each supporting block is fixedly connected with the connecting block, the push rods are arranged in the connecting blocks in an inserting mode, one end, close to the connecting plates, of each push rod is fixedly connected with the limiting blocks, and the limiting blocks are U-shaped and used for clamping the connecting plates.

The one end fixedly connected with disc that the stopper was kept away from to the push rod, the one end fixedly connected with second spring that the disc is close to the stopper, the one end and the connecting block fixed connection of disc are kept away from to the second spring.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. in the utility model, when the spraying range of the sprayer needs to be adjusted, the threaded rod is rotated to enable the threaded rod to rotate on the pipe, the rectangular plate can slide to one side far away from the pipe by means of the threaded rod, so that the rectangular plate pulls the cylinder, the cylinder pulls the supporting plate and the cylinder can slide in the fixed plate, at the moment, the first spring can push the rectangular block due to the recovery of the elasticity, the cylinder can slide on the inclined surface of the supporting plate, the connecting column can pull the adjusting plate, the adjusting plate slides in the pipe, so that the adjusting plate is lifted, at the moment, the water flow can be increased due to the loss of the blocking of the adjusting plate, so that the spraying range of the sprayer is enlarged, when the spraying range needs to be reduced, the fixed block is pushed to push the adjusting plate, so that the adjusting plate blocks the water flow, and the spraying range is reduced due to the reduction of the water flow, the threaded rod is reversed again at this moment to make the rectangular plate promote the cylinder to make the cylinder crowd the backup pad, thereby solved when the valve is in half for a long time under opening and half state of closing, the filter core in the valve is in the stress state always, can lead to the filter core in the valve to appear damaging, thereby leads to the problem that the valve can't be adjusted rivers.

2. In the utility model, the water pipe connected to the connecting pipe is detached firstly, then the disc is pulled to pull the push rod, so that the limiting block is not contacted with the connecting plate any more by virtue of the pulling force of the push rod, then the liquid accumulation ring is rotated to remove the supporting block from the connecting plate, at the moment, the liquid accumulation ring is taken down from the spray head to clean the liquid in the liquid accumulation ring, the problem that the liquid in the liquid accumulation ring can be collected too much and can not be collected continuously after long-time use is solved, then the liquid accumulation ring is placed on the connecting pipe, at the moment, the liquid accumulation ring is rotated to move the supporting block to the connecting plate, then the disc is loosened to enable the second spring to pull the disc due to the recovery of the elasticity, so that the limiting block is clamped with the connecting plate by virtue of the force of the disc for pushing the push rod, so that the liquid accumulation ring is fixed on the connecting pipe by virtue of the clamping of the limiting block and the connecting plate, and the liquid dropped at the moment can be collected by the liquid accumulation ring, thereby solved the long-term use of junction of spray gun and water pipe, it is not hard up to probably appear, probably has denitration urea this moment and drips from the junction, because denitration urea belongs to chemical, can fall the problem on people's clothes when dripping.

Drawings

FIG. 1 is a schematic perspective view of a denitration urea spray gun for a boiler, which is provided by the utility model and facilitates adjustment of the spray range;

FIG. 2 is a partial schematic structural view of a denitration urea spray gun of the boiler, which is convenient for adjusting the spray range and is shown in FIG. 1;

FIG. 3 is a schematic perspective view of a rectangular plate of the denitration urea spray gun of the boiler, which is convenient for adjusting the spray range and is shown in FIG. 1;

FIG. 4 is a schematic perspective view of a liquid accumulation ring of the denitration urea spray gun for a boiler, which is convenient for adjusting the spray range and is shown in FIG. 1;

FIG. 5 is a schematic diagram of a structure at the position A of the boiler denitration urea spray gun convenient for adjusting the spray range shown in FIG. 4.

Illustration of the drawings: 1. a spray head; 2. a connecting pipe; 3. an adjusting plate; 4. a rectangular plate; 5. a threaded rod; 6. a fixing plate; 7. a first spring; 8. a fixed block; 9. a cylinder; 10. connecting columns; 11. a support plate; 12. a rectangular block; 13. a connecting plate; 14. a liquid accumulation ring; 15. a support block; 16. connecting blocks; 17. a push rod; 18. a second spring; 19. a disc; 20. and a limiting block.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 5, a boiler denitration urea spray gun convenient for adjusting a spray range comprises a spray head 1 and a connecting pipe 2, wherein the spray head 1 is installed at one end of the connecting pipe 2.

As shown in fig. 2 and 3, two fixing blocks 8 are fixedly connected to the end of the connecting pipe 2 near the port, the fixing blocks 8 are L-shaped, and the short arm end of fixed block 8 runs through and inserts and is equipped with spliced pole 10, the one end fixedly connected with regulating plate 3 that spliced pole 10 is close to connecting pipe 2, regulating plate 3 inserts and establishes in connecting pipe 2, the one end that regulating plate 3 was kept away from to two spliced poles 10 is equipped with the promotion subassembly that promotes spliced pole 10, it includes two first springs 7 and two rectangular blocks 12 to promote the subassembly, two rectangular blocks 12 are adorned admittedly on two spliced poles 10, rectangular block 12 is close to the first spring 7 of the one end fixedly connected with of fixed block 8, the one end and the fixed block 8 fixed connection of rectangular block 12 are kept away from to first spring 7, rectangular block 12 stimulates spliced pole 10 with the help of the thrust of first spring 7, one side of two fixed blocks 8 is equipped with carries out spacing stop gear to rectangular block 12.

Stop gear includes two cylinders 9, two backup pads 11 and two fixed plates 6, and two fixed plates 6 are "L" shape, and fixed plate 6 is adorned on fixed block 8 admittedly, and the long arm end of fixed plate 6 runs through to be inserted and is equipped with cylinder 9, and the one end swing joint that cylinder 9 is close to spliced pole 10 has backup pad 11, and backup pad 11 is right angled triangle, and backup pad 11 keeps away from one side and rectangular block 12 fixed connection of cylinder 9.

Rectangular plate 4 is installed to the one end that two cylinders 9 kept away from backup pad 11, and rectangular plate 4 is interior to run through to be equipped with threaded rod 5, and threaded rod 5 screw thread is inserted and is established in the pipe.

The effect that its upper segment part cooperation was used and is reached is, when needing to adjust the spray range of shower nozzle 1, rotate threaded rod 5 and make threaded rod 5 rotate on the pipe, rectangular plate 4 can slide to the one side of keeping away from the pipe with the help of threaded rod 5 this moment, thereby make rectangular plate 4 stimulate cylinder 9, make cylinder 9 stimulate backup pad 11 simultaneously cylinder 9 can slide in fixed plate 6 inside, first spring 7 can promote rectangular block 12 because of the recovery of elasticity this moment, make cylinder 9 slide on the inclined plane of backup pad 11, spliced pole 10 can stimulate regulating plate 3 simultaneously, make regulating plate 3 slide in the pipe, thereby make regulating plate 3 rise, the rivers can be because of losing regulating plate 3 and blockking and make rivers enlarge at this moment, thereby make the spray range of shower nozzle 1 grow, when needing to reduce the spray range, promote fixed block 8 and make fixed block 8 promote regulating plate 3, thereby make regulating plate 3 block rivers, played and to have become rivers and make the effect that the scope of spraying diminishes, reverse threaded rod 5 makes rectangular plate 4 promote cylinder 9 this moment again to make cylinder 9 crowd backup pad 11, thereby solved when the valve is in for a long time under half-opened and half-closed state, the filter core in the valve is in the stress state always, can lead to the filter core in the valve to appear damaging, thereby lead to the valve can't carry out the problem of adjusting to rivers.

As shown in fig. 4 and 5, a port of the connecting pipe 2 is sleeved with a liquid ring 14, the liquid ring 14 is used for collecting liquid dripping from a connection part of the connecting pipe 2 and the water pipe, and a fixing member for fixing the liquid ring 14 is arranged on the liquid ring 14.

The fixing piece comprises two supporting blocks 15, two connecting blocks 16, two push rods 17, two limiting blocks 20 and two connecting plates 13, the two connecting plates 13 are fixedly arranged on the pipe, the two supporting blocks 15 are fixedly arranged on the liquid accumulation ring 14, one side, far away from the liquid accumulation ring 14, of each supporting block 15 is fixedly connected with the corresponding connecting block 16, the push rods 17 penetrate through the corresponding connecting blocks 16, the limiting blocks 20 are fixedly connected to one ends, close to the corresponding connecting plates 13, of the push rods 17, and the limiting blocks 20 are U-shaped and used for clamping the corresponding connecting plates 13.

One end of the push rod 17 far away from the limiting block 20 is fixedly connected with a disc 19, one end of the disc 19 near the limiting block 20 is fixedly connected with a second spring 18, and one end of the second spring 18 far away from the disc 19 is fixedly connected with the connecting block 16.

The upper section components are matched for use to achieve the effect that the water pipe connected to the connecting pipe 2 is detached firstly, then the disc 19 is pulled to enable the disc 19 to pull the push rod 17, so that the limiting block 20 is not contacted with the connecting plate 13 any more by means of the pulling force of the push rod 17, then the liquid accumulation ring 14 is rotated to enable the supporting block 15 to be moved away from the connecting plate 13, at the moment, the liquid accumulation ring 14 is taken down from the spray head 1 to clean the liquid in the liquid accumulation ring 14, the problem that the liquid in the liquid accumulation ring 14 is collected too much for long-time use and the liquid cannot be collected continuously is solved, then the liquid accumulation ring 14 is placed on the connecting pipe 2, at the moment, the liquid accumulation ring 14 is rotated to enable the supporting block 15 to be moved to the connecting plate 13, then the disc 19 is loosened to enable the second spring 18 to pull the disc 19 due to the elastic force recovery, and therefore the limiting block 20 is clamped with the connecting plate 13 by means of the disc 19 pushing the push rod 17, thereby make hydrops ring 14 fix on connecting pipe 2 with the help of stopper 20 and connecting plate 13's joint, the liquid that drips this moment can be collected by hydrops ring 14 to solved the long-time use of the junction of spray gun and water pipe, probably not hard up appears, probably have denitration urea to drip from the junction this moment, because denitration urea belongs to chemical, can fall the problem on people's the clothes when dripping.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides a boiler denitration urea spray gun convenient to adjust spray regime, it comprises shower nozzle (1) and connecting pipe (2), its characterized in that: shower nozzle (1) is installed to the one end of connecting pipe (2), connecting pipe (2) are close to two fixed block (8) of fixedly connected with of port department, fixed block (8) are "L" shape, and the forearm end of fixed block (8) runs through and is inserted and be equipped with spliced pole (10), one end fixedly connected with regulating plate (3) that spliced pole (10) are close to connecting pipe (2), regulating plate (3) are inserted and are established in connecting pipe (2), two the one end that regulating plate (3) were kept away from in spliced pole (10) is equipped with the promotion subassembly that promotes spliced pole (10).

2. The boiler denitration urea spray gun convenient for adjusting the spray range according to claim 1, characterized in that: the pushing assembly comprises two first springs (7) and two rectangular blocks (12), the rectangular blocks (12) are fixedly mounted on two connecting columns (10), one end of each rectangular block (12) close to the corresponding fixed block (8) is fixedly connected with the corresponding first spring (7), one end of each rectangular block (12) far away from the corresponding first spring (7) is fixedly connected with the corresponding fixed block (8), the corresponding rectangular block (12) pulls the corresponding connecting column (10) with the help of the thrust of the corresponding first spring (7), and the corresponding limiting mechanism for limiting the rectangular block (12) is arranged on one side of the corresponding fixed block (8).

3. The boiler denitration urea spray gun convenient for adjusting the spray range is characterized in that: stop gear includes two cylinders (9), two backup pads (11) and two fixed plates (6), two fixed plate (6) are "L" shape, fixed plate (6) are adorned admittedly on fixed block (8), the long arm end of fixed plate (6) runs through to be inserted and is equipped with cylinder (9), the one end swing joint that cylinder (9) are close to spliced pole (10) has backup pad (11), backup pad (11) are right triangle, one side and rectangular block (12) fixed connection that cylinder (9) were kept away from in backup pad (11).

4. The boiler denitration urea spray gun convenient for adjusting the spray range is characterized in that: two one end that backup pad (11) was kept away from in cylinder (9) is installed rectangular plate (4), it is equipped with threaded rod (5) to run through in rectangular plate (4), threaded rod (5) screw thread is inserted and is established in the pipe.

5. The boiler denitration urea spray gun convenient for adjusting the spray range is characterized in that: the port department cover of connecting pipe (2) has long-pending liquid ring (14), long-pending liquid ring (14) are used for collecting the liquid that connecting pipe (2) and water piping connection department drip, be equipped with on long-pending liquid ring (14) and carry out the mounting fixed to long-pending liquid ring (14).

6. The boiler denitration urea spray gun convenient for adjusting the spray range is characterized in that: the fixing piece comprises two supporting blocks (15), two connecting blocks (16), two push rods (17), two limiting blocks (20) and two connecting plates (13), wherein the two connecting plates (13) are fixedly arranged on the pipe, the two supporting blocks (15) are fixedly arranged on the hydrops ring (14), the supporting blocks (15) are fixedly connected with the connecting blocks (16) on one side far away from the hydrops ring (14), the push rods (17) are arranged in the connecting blocks (16) in a penetrating and penetrating mode, the limiting blocks (20) are fixedly connected with one ends, close to the connecting plates (13), of the push rods (17), and the limiting blocks (20) are U-shaped and used for clamping the connecting plates (13).

7. The boiler denitration urea spray gun convenient for adjusting the spray range is characterized in that: one end fixedly connected with disc (19) of stopper (20) is kept away from in push rod (17), disc (19) are close to one end fixedly connected with second spring (18) of stopper (20), disc (19) are kept away from in second spring (18) one end and connecting block (16) fixed connection.