Urea hydrolyzer cleaning device

Abstract

The utility model discloses a urea hydrolyzer cleaning device, which belongs to the technical field of urea hydrolyzer equipment maintenance, and comprises a fixed cylinder, a fixed cylinder, a water pump, a water pump, a water pump, a water pump, a water pump, a water pump, a water pump, a water pump, a water pump and a water pump, and is characterized in that the fixed cylinder is a hollow cylindrical sleeve structure and is matched with a manhole on a urea hydrolyzer; the telescopic cylinder is arranged at the hollow part in the fixed cylinder; the driving mechanism is arranged on the fixed cylinder; the cleaning mechanism is arranged at the hollow part in the fixed cylinder and the telescopic cylinder; and the induction module is arranged in the fixed cylinder. According to the urea hydrolyzer, the telescopic cylinder is arranged and extends out of the fixed cylinder through the driving mechanism, so that the cleaning mechanism is driven to clean the interior of the urea hydrolyzer, the technical problem that dirt in the urea hydrolyzer cannot be effectively cleaned through desalted water soaking is solved, the interior of the urea hydrolyzer can be cleaned more conveniently, and the service life of the urea hydrolyzer is prolonged. And the cleaning effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of urea hydrolyzer equipment maintenance, in particular to a urea hydrolyzer cleaning device. Background Art

[0002] At present, most coal-fired power plants use the urea hydrolysis method to prepare denitrification reducing agents. Due to impurities such as water-insoluble substances and metal ions in urea, as well as other products during operation, after long-term operation of the urea hydrolyzer, dirt will adhere to the wall surface of the cylinder body and the surface of the heat exchanger coil. These dirt may enter the pipeline with sewage discharge, resulting in pipeline blockage, valve wear, etc. Moreover, the dirt adhering to the surface of the heat exchanger coil will also reduce the heat transfer performance and cause the output of the hydrolyzer to decrease. Therefore, it is necessary to clean the inside of the urea hydrolyzer. In the prior art, a hard water pipe is directly inserted into the hydrolyzer for cleaning, but due to limited on-site space, the operation is very difficult. Therefore, when cleaning the inside of the urea hydrolyzer, desalted water is mostly added into the urea hydrolyzer, and after soaking with desalted water, the dirt is discharged with the desalted water. However, the cleaning effect of this method is limited and cannot achieve a qualified cleaning effect. Summary of the Utility Model

[0003] To solve the above problems, the utility model provides a urea hydrolyzer cleaning device, including:

[0004] A fixed cylinder, the fixed cylinder is a cylindrical sleeve structure with a hollow interior, and the cross-sectional diameter of the fixed cylinder is adapted to the diameter of the inspection hole on the urea hydrolyzer;

[0005] A telescopic cylinder, the telescopic cylinder is a cylindrical sleeve structure with a hollow interior, the telescopic cylinder is arranged in the hollow part of the fixed cylinder, and the telescopic cylinder is movably connected to the fixed cylinder;

[0006] A driving mechanism, the driving mechanism is arranged on the fixed cylinder, and the driving mechanism is fixedly connected to the telescopic cylinder;

[0007] A cleaning mechanism, one end of the cleaning mechanism is fixedly connected to the telescopic cylinder, and the other end is connected to a desalted water pump;

[0008] An induction module, the induction module is arranged in the fixed cylinder, and the induction module is teleconnected to the driving mechanism.

[0009] Optionally, the driving mechanism includes:

[0010] Two driving motors, the two driving motors are arranged on the fixed cylinder and are both fixedly connected to the fixed cylinder;

[0011] Two gears, each of the two gears is fixedly connected to the output shaft of the two drive motors, and starting the drive motors can rotate the gears;

[0012] Two racks, both of the two racks are arranged parallel to the axis direction of the telescopic cylinder, and one end of each of the two racks is fixedly connected to the telescopic cylinder, and the two racks are respectively adapted to the two gears.

[0013] Optionally, the cleaning mechanism includes:

[0014] A spray head, the spray head is arranged at the end far from the telescopic cylinder when the telescopic cylinder extends out of the fixed cylinder, and the spray head is fixedly connected to the telescopic cylinder;

[0015] A water pipe, one end of the water pipe is communicated with the demineralized water pump, and the other end of the water pipe passes through the fixed cylinder and is communicated with the hollow part in the telescopic cylinder and the spray head.

[0016] Optionally, the induction module includes two induction switches, both of the two induction switches are electrically connected to the two drive motors, and the two induction switches are respectively arranged at the ports at both ends of the fixed cylinder to detect the position of the telescopic cylinder.

[0017] Optionally, a first limit buckle is arranged at one end of the fixed cylinder far from the drive mechanism, a second limit buckle is arranged at one end of the telescopic cylinder close to the drive mechanism, and the second limit buckle is adapted to the first limit buckle.

[0018] Optionally, it further includes:

[0019] Two rollers, the two rollers are symmetrically arranged on the fixed cylinder, and the two rollers are located at the first limit buckle;

[0020] Two guide rails, the two guide rails are symmetrically arranged on the telescopic cylinder, and the two guide rails are respectively adapted to the two rollers.

[0021] Optionally, the cleaning mechanism further includes: a quick connector, the quick connector is fixedly connected to the spray head, and the water pipe is connected to the spray head through the quick connector.

[0022] By adopting the above technical solutions, the utility model mainly has the following technical effects:

[0023] In the utility model, by arranging the telescopic cylinder and making the telescopic cylinder extend out of the fixed cylinder through the drive mechanism, the cleaning mechanism is driven to clean the inside of the urea hydrolyzer. The technical problem that the inside of the urea hydrolyzer cannot be effectively cleaned by soaking with demineralized water is solved, and the technical effect of being more convenient to clean the dirt inside the urea hydrolyzer and having a better cleaning effect is realized. Description of the Drawings

[0024] Figure 1 This is a schematic structural view of a cleaning device for a urea hydrolyzer according to the present utility model;

[0025] Figure 2 is Figure 1 an enlarged structural view at position A in

[0026] Among them, the meanings of the reference numerals are as follows:

[0027] 1. Fixed cylinder; 11. First limit buckle; 12. Roller;

[0028] 2. Telescopic cylinder; 21. Second limit buckle; 22. Guide rail;

[0029] 3. Driving mechanism; 31. Driving motor; 32. Gear; 33. Rack;

[0030] 4. Cleaning mechanism; 41. Nozzle; 42. Water pipe; 43. Quick connector;

[0031] 5. Induction module; 51. Induction switch. Detailed Embodiment

[0032] In order to enable those skilled in the art of this technology to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the specification drawings in the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0033] The mention of "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present utility model. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0034] Embodiment

[0035] Please refer to Figure 1 - Figure 2 , the present utility model provides a cleaning device for a urea hydrolyzer. In actual application, it is used to clean the inside of the urea hydrolyzer, and it includes a fixed cylinder 1, a telescopic cylinder 2 movably connected to the fixed cylinder 1, a driving mechanism 3 respectively connected to the fixed cylinder 1 and the telescopic cylinder 2, and a cleaning mechanism 4 provided on the telescopic cylinder 2.

[0036] Among them, the fixed cylinder 1 is a cylindrical sleeve structure with a hollow interior, and the fixed cylinder 1 is adapted to the inspection hole on the urea hydrolyzer so that the fixed cylinder 1 can be inserted into the inspection hole on the urea hydrolyzer and fixed on the urea hydrolyzer by a fixing device on the urea hydrolyzer. The telescopic cylinder 2 is a cylindrical structure with a hollow interior. The cross-sectional diameter of the telescopic cylinder 2 is smaller than that of the fixed cylinder 1, and the telescopic cylinder 2 is movably connected to the hollow part inside the fixed cylinder 1. The telescopic cylinder 2 can slide along the axis direction of the fixed cylinder 1 inside the fixed cylinder 1.

[0037] The driving mechanism 3 is arranged on the fixed cylinder 1 and is fixedly connected to the telescopic cylinder 2. The driving mechanism 3 is used to provide the power for the telescopic cylinder 2 to extend or contract from inside the fixed cylinder 1. The cleaning mechanism 4 passes through the hollow part of the fixed cylinder 1 and the hollow part of the telescopic cylinder 2. One end of the cleaning mechanism 4 is fixedly connected to the telescopic cylinder 2, and the other end is connected to a desalination water pump. The desalinated water pumped by the desalination water pump is sprayed inside the urea hydrolyzer through the cleaning mechanism 4 to clean the urea hydrolyzer. Among them, the cleaning mechanism 4 can move with the movement of the telescopic cylinder 2 so that the cleaning mechanism 4 can move to different positions inside the urea hydrolyzer.

[0038] In this embodiment, the urea hydrolyzer cleaning device further includes an induction module 5. The induction module 5 is arranged inside the fixed cylinder 1 and is in telecommunication connection with the driving mechanism 3. When the induction module 5 senses the telescopic cylinder 2, it feeds back the detected position information of the telescopic cylinder 2 to the controller, and then controls the driving mechanism 3 to stop through the controller.

[0039] In this embodiment, when it is necessary to clean the urea hydrolyzer, the staff only needs to insert the fixed cylinder 1 into the inspection hole of the urea hydrolyzer, install the fixed cylinder 1 on the urea hydrolyzer through the fixing device, and at the same time turn on the plant water pump to make the desalinated water enter the cleaning mechanism 4. The desalinated water is sprayed out through the cleaning mechanism 4 inside the urea hydrolyzer under high pressure and evenly sprayed inside the urea hydrolyzer. At this time, start the driving mechanism 3 to drive the telescopic cylinder 2 to move. When the telescopic cylinder 2 moves, it drives the cleaning mechanism 4 to move to different positions relative to the urea hydrolyzer, so as to spray desalinated water at different positions inside the urea hydrolyzer for cleaning.

[0040] Preferably, the driving mechanism 3 can be manually controlled by the staff to start or stop, so that the telescopic cylinder 2 can move to any position and remain in that position unchanged to improve flexibility.

[0041] In this embodiment, the driving mechanism 3 includes two driving motors 31, two gears 32 and two racks 33. The two driving motors 31 are symmetrically arranged on the fixed cylinder 1 and are both fixedly connected to the fixed cylinder 1. The two driving motors 31 can ensure sufficient power output. The driving motor 31 can be a reversible motor. For example, a reversible motor can operate in both forward and reverse directions and can work in both electric and generating states. Through the forward and reverse rotation of the motor, its output end also has the function of forward and reverse rotation. The two gears 32 are respectively fixedly connected to the output shafts of the two driving motors 31. That is, when the driving motor 31 is started, it can drive the gear 32 to rotate around the output shaft of the driving motor 31. The two racks 33 are both arranged parallel to the axis direction of the telescopic cylinder 2, and one end of each of the two racks 33 is fixedly connected to the telescopic cylinder 2. The two racks 33 are respectively meshed with the two gears 32. The rotation of the gear 32 can drive the rack 33 to move along its length direction, thereby driving the telescopic cylinder 2 connected to the rack 33 to move. For example, when the telescopic cylinder 2 needs to extend, the driving motor 31 is started to drive the gear 32 to rotate, so that the rack 33 moves, and then the telescopic cylinder 2 is pushed out of the fixed cylinder 1. When the telescopic cylinder 2 needs to be retracted, only the driving motor 31 needs to be reversed.

[0042] In this embodiment, the cleaning mechanism 4 includes a spray head 41 and a water pipe 42. The spray head 41 is arranged at the end of the telescopic cylinder 2 far from the telescopic cylinder 2 when it extends out of the fixed cylinder 1, and the spray head 41 is fixedly connected to the telescopic cylinder 2. Among them, the spray head 41 is a rotary spray head 41. The water flow passes through the diversion channel or rotary vane inside the rotary spray head 41 to generate a rotational force, which is then converted into the rotational movement of the spray head 41. Preferably, the spray head 41 is usually designed with a spiral or disc-shaped structure, and the nozzle orientation of the spray head 41 is adapted to the inner wall of the urea hydrolyzer. One end of the water pipe 42 is communicated with the demineralized water pump, and the other end passes through the fixed cylinder 1 and is communicated with the hollow part inside the telescopic cylinder 2 and is communicated with the spray head 41, so that the demineralized water pumped by the water pump flows to the spray head 41 through the water pipe 42 for high-pressure spraying. Preferably, the cleaning mechanism 4 further includes a quick connector 43. The quick connector 43 is fixedly connected to the spray head 41, and the water pipe 42 is connected to the spray head 41 through the quick connector 43, so as to facilitate the staff to quickly connect the water pipe 42 to the spray head 41 to improve work efficiency.

[0043] In this embodiment, the induction module 5 includes two induction switches 51. Both of the two induction switches 51 are in telecommunication connection with the two driving motors. The two induction switches 51 are respectively arranged at the ports at both ends of the fixed cylinder 1. When the position of the telescopic cylinder 2 is within the induction areas of the two induction switches 51, the two driving motors 31 can be turned off through the controller. That is, when the telescopic cylinder 2 is fully extended or fully retracted, the driving motors 31 will automatically stop running, and the telescopic cylinder 2 stops moving, thereby effectively avoiding mechanical damage caused by excessive telescoping. For example, the induction switch 51 can be an infrared induction switch. When an object enters the induction range, the infrared induction switch will output a trigger signal to control the motor to turn off through the controller.

[0044] In this embodiment, a ring-shaped protrusion is further arranged at one end of the fixed cylinder 1 away from the driving mechanism 3. The cross-sectional diameter of the gap at the center of the protrusion is adapted to the cross-sectional diameter of the telescopic cylinder 2. The protrusion is the first limit buckle 11. A second limit buckle 21 is arranged at one end of the telescopic cylinder 2 close to the driving mechanism 3, and the second limit buckle 21 is adapted to the first limit buckle 11. That is, when the telescopic cylinder 2 extends to the longest distance, the first limit buckle 11 abuts against the second fiber buckle 21, thereby limiting the maximum extension distance of the telescopic cylinder 2 and preventing it from falling out of the fixed cylinder 1.

[0045] In some preferred embodiments, to prevent the telescopic cylinder 2 from shifting during movement, two rollers 12 and two guide rails 22 are further provided. The two rollers 12 are symmetrically arranged on the fixed cylinder 1, and the two rollers 12 are located at the first limit buckle 11. The two guide rails 22 are symmetrically arranged on both sides of the outer wall of the telescopic cylinder 2, and the two guide rails 22 are respectively adapted to the two rollers 12. When the telescopic cylinder 2 moves, the possibility of the telescopic cylinder 2 rotating during movement can be prevented by the sliding of the rollers 12 on the guide rails 22, so as to keep the gear 32 and the rack 33 continuously engaged and reduce the possibility of equipment damage.

[0046] Finally, it should be noted that: what is disclosed in the embodiments of the present utility model is only the preferred embodiments of the present utility model, which are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A urea hydrolyzer cleaning device, characterized in that, Comprising: A fixed cylinder (1), the fixed cylinder (1) being a cylindrical sleeve structure with a hollow interior, and the fixed cylinder (1) being adapted to the inspection hole on the urea hydrolyzer; A telescopic cylinder (2), the telescopic cylinder (2) being a cylindrical sleeve structure with a hollow interior, the telescopic cylinder (2) being disposed inside the hollow of the fixed cylinder (1), and the telescopic cylinder (2) being movably connected to the fixed cylinder (1); A driving mechanism (3), the driving mechanism (3) being disposed on the fixed cylinder (1), and the driving mechanism (3) being fixedly connected to the telescopic cylinder (2); A cleaning mechanism (4), one end of the cleaning mechanism (4) being fixedly connected to the telescopic cylinder (2), and the other end being connected to a demineralized water pump; An induction module (5), the induction module (5) being disposed inside the fixed cylinder (1), and the induction module (5) being in telecommunication connection with the driving mechanism (3).

2. The urea hydrolyzer cleaning device according to claim 1, characterized in that, The driving mechanism (3) includes: Two driving motors (31), the two driving motors (31) being disposed on the fixed cylinder (1), and both being fixedly connected to the fixed cylinder (1); Two gears (32), the two gears (32) being respectively fixedly connected to the output shafts of the two driving motors (31), and starting the driving motors (31) can cause the gears (32) to rotate; Two racks (33), the two racks (33) both being disposed parallel to the axis direction of the telescopic cylinder (2), and one end of each of the two racks (33) being fixedly connected to the telescopic cylinder (2), and the two racks (33) respectively being adapted to the two gears (32).

3. A urea hydrolyzer cleaning device according to claim 1, characterized in that, The cleaning mechanism (4) includes: A nozzle (41), the nozzle (41) being disposed at the end of the telescopic cylinder (2) that extends out of the fixed cylinder (1) and away from the telescopic cylinder (2), and the nozzle (41) being fixedly connected to the telescopic cylinder (2); A water pipe (42), one end of the water pipe (42) being communicated with a demineralized water pump, and the other end of the water pipe (42) passing through the fixed cylinder (1) and being communicated with the hollow inside the telescopic cylinder (2) and the nozzle (41).

4. A urea hydrolyzer cleaning device according to claim 1, characterized in that, The induction module (5) includes two induction switches (51), the two induction switches (51) both being in telecommunication connection with the two driving motors (31), and the two induction switches (51) being respectively disposed at the ports at both ends of the fixed cylinder (1).

5. A urea hydrolyzer cleaning device according to claim 1, characterized in that, A first limit buckle (11) is disposed at one end of the fixed cylinder (1) away from the driving mechanism (3), a second limit buckle (21) is disposed at one end of the telescopic cylinder (2) close to the driving mechanism (3), and the second limit buckle (21) is adapted to the first limit buckle (11).

6. The urea hydrolyzer cleaning device according to claim 5, wherein, Further comprising: Two rollers (12), the two rollers (12) being symmetrically disposed on the fixed cylinder (1), and the two rollers (12) being located at the first limit buckle (11); Two guide rails (22), the two guide rails (22) being symmetrically disposed on the telescopic cylinder (2), and the two guide rails (22) respectively being adapted to the two rollers (12).

7. A urea hydrolyzer cleaning device according to claim 3, characterized in that, The cleaning mechanism (4) further includes: a quick connector (43), the quick connector (43) is fixedly connected to the nozzle (41), and the water pipe (42) is connected to the nozzle (41) through the quick connector (43).

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