CN210675696U

CN210675696U - Urea solution spray gun for SNCR (Selective non-catalytic reduction) system

Info

Publication number: CN210675696U
Application number: CN201921708986.2U
Authority: CN
Inventors: 李正林
Original assignee: Yangzhou Zhongkang Environmental Protection Equipment Co Ltd
Current assignee: Yangzhou Zhongkang Environmental Protection Equipment Co Ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-06-05
Anticipated expiration: 2029-10-14

Abstract

The utility model relates to a urea solution spray gun technical field just discloses a urea solution spray gun for SNCR system, which comprises a pipe body, the top fixed mounting who draws together the body has the barrel, the top fixed mounting of barrel has the faucet, the outside fixed mounting of body has the collar, the inside fixed mounting of body has the solenoid valve, the inside fixed mounting of body has the lower spacing ring that is located the solenoid valve top. This urea solution spray gun for SNCR system, possess the clearance of being convenient for and have the advantage such as remain solution function in detaching the barrel, the phenomenon of jam often appears easily in the nozzle of having solved the urea solution spray gun, the nozzle of urea solution spray gun is nevertheless blockked, not only can influence the work efficiency of nozzle, and be difficult to the clearance, use the urea solution spray gun after the while, can remain solution in the barrel of urea solution spray gun, the easy dry back of remaining solution solidifies, influence the problem of the work efficiency of urea solution spray gun for a long time easily.

Description

Urea solution spray gun for SNCR (Selective non-catalytic reduction) system

Technical Field

The utility model relates to a urea solution spray gun technical field specifically is a urea solution spray gun for SNCR system.

Background

The spray gun is a device which utilizes liquid or compressed air to rapidly release as power, the spray gun is divided into a normal pressure type spray gun and a pressurization type spray gun, the spray gun also comprises a pressure type spray gun, a Kale type spray gun and an automatic recovery type spray gun, the spray gun can be directly used for loading paint in the application in the industry, namely, the simple spray gun can be installed in automatic equipment, such as an automatic glue sprayer, an automatic glue spreader, an automatic paint sprayer, a coating machine and other spraying equipment for use, and the spray gun comprises a gun body and a gun head which are connected through a connecting mechanism; the gun head comprises a nozzle, and a plurality of metal round steel bars are welded in the nozzle in a plug welding manner; the connecting mechanism comprises a flange and a chain pin, and the nozzle is manufactured into a flat shape; the replacement is more convenient, the cost is lower, and the falling and abrasion of the gun head can be effectively prevented.

At present urea solution spray gun when using, because solution filters totally inadequately, the phenomenon of jam often appears easily in the nozzle of urea solution spray gun, the nozzle of urea solution spray gun nevertheless blocks, not only can influence the work efficiency of nozzle, and difficult to clear up, use the urea solution spray gun after simultaneously, can remain the solution in the barrel of urea solution spray gun, remain the solution and solidify after drying easily, influence the work efficiency of urea solution spray gun for a long time easily, so propose a urea solution spray gun for SNCR system and solve the above-mentioned problem that provides.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a urea solution spray gun for SNCR system, possess the clearance of being convenient for and have and detach and remain advantages such as solution function in the barrel, solved because solution filters clean inadequately, the phenomenon of jam often appears easily in the nozzle of urea solution spray gun, the nozzle of urea solution spray gun nevertheless blocks, not only can influence the work efficiency of nozzle, and be difficult to the clearance, use the urea solution spray gun after-passing simultaneously, can remain solution in the barrel of urea solution spray gun, solidification after the easy drying of remaining solution, influence the problem of the work efficiency of urea solution spray gun easily for a long time.

(II) technical scheme

For the purpose that realizes above-mentioned clearance of being convenient for and have the interior residual solution function of detaching the barrel, the utility model provides a following technical scheme: a urea solution spray gun for an SNCR system comprises a pipe body, wherein a gun barrel is fixedly installed at the top of the pipe body, a water outlet nozzle is fixedly installed at the top of the gun barrel, a mounting ring is fixedly installed at the outer side of the pipe body, an electromagnetic valve is fixedly installed inside the pipe body, a lower limiting ring located above the electromagnetic valve is fixedly installed inside the pipe body, an upper limiting ring located above the lower limiting ring is fixedly installed inside the pipe body, an inner sliding pipe located on one side, opposite to the upper limiting ring and the lower limiting ring, is movably installed inside the mounting ring, a spring seat is fixedly installed inside the inner sliding pipe, a sealing ring located below the spring seat is fixedly installed inside the inner sliding pipe, a sliding groove located on one side, opposite to the sealing ring, of the spring seat is fixedly installed at the bottom of the spring seat, a sliding rod movably connected with the sliding groove is fixedly installed, the one end fixed mounting that the spout was kept away from to the slide bar has the ball sealer, the top fixed mounting of lower spacing ring has one end and interior slide pipe bottom fixed connection's first spring, the bottom fixed mounting of spring holder has one end and slide bar top fixed connection's second spring, the left side fixed mounting of body has the siphon, the inside fixed mounting of siphon has the check valve, the left side fixed mounting of collar has the connecting block, the left side fixed mounting of connecting block has the go-between with siphon outside fixed connection.

Preferably, the lower limit ring and the upper limit ring have the same specification, and the distance between the lower limit ring and the upper limit ring is greater than twice the length of the inner slide pipe.

Preferably, the moment force of the first spring is smaller than that of the second spring, and the size of the sealing ball is matched with that of the sealing ring.

Preferably, the sliding grooves are uniformly distributed, and the number of the sliding rods is matched with that of the sliding grooves.

Preferably, the siphon is positioned below the upper limiting ring and communicated with the pipe body.

Preferably, the length of the inner slide pipe is larger than the diameter of the siphon pipe, and the one-way valve is positioned at one end of the siphon pipe close to the pipe body.

(III) advantageous effects

Compared with the prior art, the utility model provides a urea solution spray gun for SNCR system possesses following beneficial effect:

1. the urea solution spray gun for the SNCR system is characterized in that when a gun barrel and a water outlet nozzle are blocked by impurities in a solution, an electromagnetic valve is closed to block a water source, a first spring contracts to drive an inner sliding pipe to move downwards, meanwhile, a second spring pushes a sealing ball downwards to seal a sealing ring, when the inner sliding pipe moves downwards, a siphon pipe is communicated with a pipe body, the other end of the siphon pipe is connected with an air pump, the air pump pumps air in the siphon pipe to generate suction, the impurities in the gun barrel and the water outlet nozzle are sucked through the siphon pipe to be dredged, and therefore the aim of conveniently clearing the blockage is achieved, when the spray gun is normally used, the electromagnetic valve starts, the water source upwards generates water pressure, as the moment force of the first spring is smaller than that of the second spring, the water pressure can firstly push the inner sliding pipe to move upwards to enable the inner sliding pipe to seal the siphon pipe, then push the second spring to separate the sealing ball from the sealing, thereby ensuring the normal work of the urea solution spray gun for the SNCR system.

2. According to the urea solution spray gun for the SNCR system, when the urea solution spray gun is not used, the electromagnetic valve can cut off the delivery of a water source, the part at the top of the electromagnetic valve can retain solution after the cut-off, in order to prevent the normal work of a gun barrel from being influenced after the solution is dried, the other end of the siphon pipe can be connected with the air pump, the air pump pumps air in the siphon pipe to generate suction force, the solution retained in the urea solution spray gun is sucked out along with air through the strong suction force of the air pump, and therefore the purpose of removing the solution retained in the.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged view of a position a in the structure diagram 1 of the present invention.

In the figure: the device comprises a pipe body 1, a mounting ring 2, an electromagnetic valve 3, a lower limiting ring 4, a first spring 5, a sealing ball 6, an upper limiting ring 7, a gun tube 8, a water outlet nozzle 9, a spring seat 10, an inner sliding pipe 11, a siphon pipe 12, a one-way valve 13, a connecting block 14, a connecting ring 15, a sliding rod 16, a sliding chute 17, a sealing ring 18 and a second spring 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a urea solution spray gun for an SNCR system comprises a pipe body 1, a gun barrel 8 is fixedly installed on the top of the pipe body 1, a water outlet nozzle 9 is fixedly installed on the top of the gun barrel 8, a mounting ring 2 is fixedly installed on the outer side of the pipe body 1, an electromagnetic valve 3 is fixedly installed inside the pipe body 1, a lower limiting ring 4 located above the electromagnetic valve 3 is fixedly installed inside the pipe body 1, an upper limiting ring 7 located above the lower limiting ring 4 is fixedly installed inside the pipe body 1, an inner sliding pipe 11 located on one side, opposite to the upper limiting ring 7 and the lower limiting ring 4, is movably installed inside the mounting ring 2, the lower limiting ring 4 and the upper limiting ring 7 are identical in specification, the distance between the lower limiting ring 4 and the upper limiting ring 7 is larger than twice the length of the inner sliding pipe 11, a spring seat 10 is fixedly installed inside the inner sliding pipe 11, and a sealing ring 18 located below the spring seat 10 is fixedly installed inside, the inner sliding pipe 11 is internally provided with a sliding chute 17 positioned at one side of the spring seat 10 opposite to the sealing ring 18, the bottom of the spring seat 10 is fixedly provided with sliding rods 16 movably connected with the sliding chute 17, the sliding chutes 17 are uniformly distributed, the number of the sliding rods 16 is matched with that of the sliding chutes 17, one end of each sliding rod 16 far away from the sliding chute 17 is fixedly provided with a sealing ball 6, the top of the lower limiting ring 4 is fixedly provided with a first spring 5, one end of each first spring is fixedly connected with the bottom of the inner sliding pipe 11, the bottom of the spring seat 10 is fixedly provided with a second spring 19, one end of each first spring 5 is fixedly connected with the top of the corresponding sliding rod 16, the moment force of each first spring 5 is smaller than that of the second spring 19, the size of each sealing ball 6 is matched with that of the sealing ring 18, the left side of the pipe body 1 is fixedly provided with a siphon pipe 12, the siphon pipe 12 is positioned below, and the check valve 13 is located at one end of the siphon tube 12 close to the tube body 1, the check valve 13 is fixedly installed inside the siphon tube 12, the connecting block 14 is fixedly installed at the left side of the mounting ring 2, the connecting ring 15 fixedly connected with the outer side of the siphon tube 12 is fixedly installed at the left side of the connecting block 14, when the gun tube 8 and the water outlet nozzle 9 are blocked by impurities inside the solution, the electromagnetic valve 3 is closed to block water source, the first spring 5 contracts to drive the inner sliding tube 11 to move downwards, meanwhile, the second spring 19 pushes the sealing ball 6 downwards to seal the sealing ring 18, the siphon tube 12 is communicated with the tube body 1 when the inner sliding tube 11 moves downwards, the other end of the siphon tube 12 is connected with the air pump, the air pump pumps air inside the siphon tube 12 to generate suction, impurities inside the gun tube 8 and the water outlet nozzle 9 are sucked through the siphon tube 12 to dredge, the electromagnetic valve 3 starts, the water source generates water pressure upwards, because the moment force of the first spring 5 is smaller than the moment force of the second spring 19, the water pressure can firstly push the inner slide tube 11 to move upwards, the inner slide tube 11 seals the siphon tube 12, then the second spring 19 is pushed to separate the sealing ball 6 from the sealing ring 18, the water source is conveyed to the inside of the gun barrel 8 through the gap between the sealing ball 6 and the sealing ring 18, so that the normal work of the spray gun of the urea solution for the SNCR system is ensured, when the spray gun of the urea solution is not used, the electromagnetic valve 3 can cut off the conveying of the water source, the solution can remain on the top of the electromagnetic valve 3 after cutting off, in order to prevent the solution from affecting the normal work of the gun barrel 8 after drying, the air pump can be connected with the other end of the siphon tube 12, the air in the siphon tube 12 is pumped to generate suction, thereby achieving the purpose of removing the residual solution in the gun barrel 8.

In summary, according to the urea solution spray gun for the SNCR system, when the gun barrel 8 and the water outlet nozzle 9 are blocked by impurities in the solution, the electromagnetic valve 3 is closed to block a water source, the first spring 5 contracts to drive the inner sliding tube 11 to move downwards, meanwhile, the second spring 19 pushes the sealing ball 6 downwards to seal the sealing ring 18, the inner sliding tube 11 moves downwards to enable the siphon tube 12 to be communicated with the pipe body 1, the other end of the siphon tube 12 is connected with the air pump, the air pump pumps air in the siphon tube 12 to generate suction, impurities in the gun barrel 8 and the water outlet nozzle 9 are sucked through the siphon tube 12 to be dredged, and therefore the purpose of conveniently clearing the blockage is achieved, when the electromagnetic valve 3 is normally used, the water source starts to generate water pressure upwards, and because the moment force of the first spring 5 is smaller than the moment force of the second spring 19, the water pressure pushes the inner sliding tube 11 to move upwards to enable, the second spring 19 is pushed to separate the sealing ball 6 from the sealing ring 18, a water source is conveyed into the gun barrel 8 through a gap between the sealing ball 6 and the sealing ring 18, so that the normal work of the urea solution spray gun for the SNCR system is ensured, when the urea solution spray gun is not used, the electromagnetic valve 3 can cut off the conveying of the water source, the solution can be remained at the top of the electromagnetic valve 3 after the cutting off, in order to prevent the normal work of the gun barrel 8 from being influenced after the solution is dried, the air pump can be connected with the other end of the siphon 12 and used for pumping the air in the siphon 12 to generate suction, the strong suction of the air pump enables the solution remained in the urea solution spray gun to be sucked out along with the air, so that the aim of removing the remained solution in the gun barrel 8 is achieved, the problem that the nozzle of the urea solution spray gun is blocked due to incomplete filtration, not only can influence the work efficiency of nozzle, be difficult to the clearance moreover, use the urea solution spray gun after simultaneously, can remain solution in the barrel 8 of urea solution spray gun, solidification after the easy drying of remaining solution, the problem of the work efficiency of long-time easy influence urea solution spray gun.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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

Claims

1. The utility model provides a urea solution spray gun for SNCR system, includes body (1), its characterized in that: the gun barrel (8) is fixedly mounted at the top of the tube body (1), the water outlet nozzle (9) is fixedly mounted at the top of the gun barrel (8), a mounting ring (2) is fixedly mounted at the outer side of the tube body (1), an electromagnetic valve (3) is fixedly mounted inside the tube body (1), a lower limiting ring (4) positioned above the electromagnetic valve (3) is fixedly mounted inside the tube body (1), an upper limiting ring (7) positioned above the lower limiting ring (4) is fixedly mounted inside the tube body (1), an inner sliding tube (11) positioned on one side opposite to the upper limiting ring (7) and the lower limiting ring (4) is movably mounted inside the mounting ring (2), a spring seat (10) is fixedly mounted inside the inner sliding tube (11), and a sealing ring (18) positioned below the spring seat (10) is fixedly mounted inside the inner sliding tube (11), a sliding groove (17) which is positioned at one side of the spring seat (10) opposite to the sealing ring (18) is arranged in the inner sliding pipe (11), a sliding rod (16) movably connected with the sliding groove (17) is fixedly arranged at the bottom of the spring seat (10), a sealing ball (6) is fixedly arranged at one end of the sliding rod (16) far away from the sliding groove (17), a first spring (5) with one end fixedly connected with the bottom of the inner sliding pipe (11) is fixedly arranged at the top of the lower limiting ring (4), a second spring (19) with one end fixedly connected with the top of the sliding rod (16) is fixedly arranged at the bottom of the spring seat (10), a siphon (12) is fixedly arranged on the left side of the pipe body (1), a one-way valve (13) is fixedly arranged in the siphon (12), the left side fixed mounting of collar (2) has connecting block (14), the left side fixed mounting of connecting block (14) have with siphon (12) outside fixed connection's go-between (15).

2. A urea solution spray gun for SNCR system according to claim 1, wherein: the lower limiting ring (4) and the upper limiting ring (7) are the same in specification, and the distance between the lower limiting ring (4) and the upper limiting ring (7) is larger than twice of the length of the inner sliding pipe (11).

3. A urea solution spray gun for SNCR system according to claim 1, wherein: the moment force of the first spring (5) is smaller than that of the second spring (19), and the size of the sealing ball (6) is matched with that of the sealing ring (18).

4. A urea solution spray gun for SNCR system according to claim 1, wherein: the sliding grooves (17) are uniformly distributed, and the number of the sliding rods (16) is matched with that of the sliding grooves (17).

5. A urea solution spray gun for SNCR system according to claim 1, wherein: the siphon (12) is positioned below the upper limiting ring (7), and the siphon (12) is communicated with the pipe body (1).

6. A urea solution spray gun for SNCR system according to claim 1, wherein: the length of the inner sliding pipe (11) is larger than the diameter of the siphon pipe (12), and the one-way valve (13) is positioned at one end, close to the pipe body (1), of the siphon pipe (12).