A preheater vacuum regulation orifice cleaning device

Abstract

This utility model discloses a preheater vacuum regulating orifice plate cleaning device, relating to the technical field of preheaters. The utility model includes a preheater, a vacuum tube, a connecting ball valve, and a movable strip. A vacuum tube is located on one side of the preheater. The end of the vacuum tube near the preheater is fixedly connected to the connecting ball valve. A push plate is movably connected to the end of the connecting ball valve near the preheater. A movable strip is fixed to the end of the push plate away from the connecting ball valve. Connecting rods are evenly fixed to the end of the push plate near the connecting ball valve. Each connecting rod has several clusters of cleaning bristles arranged in a circular array at equal intervals around its periphery. This utility model, by setting up a preheater, a vacuum tube, a connecting ball valve, and a movable strip, solves the problems of long cleaning times and inconvenient orifice alignment in preheater vacuum regulating orifice plate cleaning devices.

Description

Technical Field

[0001] This utility model belongs to the technical field of preheaters, and in particular relates to a preheater vacuum regulating orifice plate cleaning device. Background Technology

[0002] In the production of regenerated cellulose, a 14-effect flash evaporator is needed to evaporate the water generated during the process. The vacuum level of each evaporation chamber in the 14-effect flash evaporator is adjusted by a vacuum regulating orifice plate with 14 orifice diameters of different sizes on the vacuum tube (the orifice diameter increases progressively from 4 to 12 mm). Maintaining the normal operation of the 14-effect flash evaporator's vacuum orifice plate is the basic guarantee for the efficient and normal operation of the 14-effect flash evaporator. However, the preheater vacuum regulating orifice plate cleaning device still has the following drawbacks in actual use: In actual production, because the evaporated secondary steam contains a lot of sulfides, the main aperture of the 14-effect flash vacuum regulating orifice plate will gradually become blocked, resulting in a decrease in the operating efficiency of the 14-effect flash steam. In severe cases, it may be necessary to shut down the steam. During the shutdown process, it takes a long time to complete the cleaning. During the cleaning process, the orifice plate is removed and the cleaning structure is aligned with the orifice plate. During the cleaning process, the cleaning device is directly aligned with the orifice plate. The alignment process of the cleaning device is relatively complicated, and it is inconvenient to align the orifice plate with the holes during the cleaning process. Utility Model Content

[0003] The purpose of this utility model is to provide a preheater vacuum regulating orifice plate cleaning device. By setting up a preheater, a vacuum tube, a connecting ball valve and a movable strip, it solves the problems that the preheater vacuum regulating orifice plate cleaning device requires a long time to complete the cleaning and is not convenient to align the cleaning orifice.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a preheater vacuum regulating orifice plate cleaning device, comprising a preheater, a vacuum tube, a connecting ball valve, and a movable bar. A vacuum tube is located on one side of the preheater. The end of the vacuum tube near the preheater is fixedly connected to the connecting ball valve. A push plate is movably connected to the end of the connecting ball valve near the preheater. A movable bar is fixed to the end of the push plate away from the connecting ball valve. Connecting rods are uniformly fixed to the end of the push plate near the connecting ball valve. Each connecting rod has several clusters of cleaning bristles arranged in a ring array at equal intervals around its periphery. The preheater is used to preheat the regenerated cellulose solution. A vacuum tube is connected to its side. The end of the vacuum tube near the preheater is controlled by the connecting ball valve and movably connected to a push plate. A movable bar is fixed to the outer side of the push plate, and multiple connecting rods are evenly distributed on its inner side. Each connecting rod has several cleaning bristles arranged around its surface for cleaning the inside of the pipe.

[0005] Furthermore, an exhaust pipe is horizontally and fixedly connected to the center of the periphery of the preheater. A vacuum valve is fixedly connected to the end of the exhaust pipe away from the preheater. A connecting pipe is fixedly connected to the end of the vacuum valve away from the exhaust pipe. The exhaust pipe is horizontally connected to the side of the preheater. A vacuum valve and a connecting pipe are installed sequentially at the outer end of the exhaust pipe to discharge steam from the preheater and to control the exhaust flow through the vacuum valve.

[0006] Furthermore, the central axis of the connecting pipe is perpendicular to the central axis of the preheater. One end of the connecting pipe, which is far from the vacuum valve, is fixedly connected to the middle of the periphery of the vacuum tube. The connecting pipe is perpendicular to the axis of the preheater, and its outer end is fixedly connected to the middle of the vacuum tube, so that the vacuum tube can perform a vacuuming operation on the connecting pipe.

[0007] Furthermore, a vacuum regulating orifice plate body is fixed on the inner wall of the vacuum tube. The vacuum regulating orifice plate body is located on the side of the vacuum tube away from the connecting ball valve. The vacuum regulating orifice plate body has gas supply holes that are opened through it, corresponding to each connecting rod. The vacuum tube is equipped with the vacuum regulating orifice plate body, located on the side away from the connecting ball valve. The orifice plate has multiple gas supply holes that correspond to each connecting rod, allowing gas to pass through while facilitating cleaning of the brush bristles.

[0008] Furthermore, a connecting frame is fixed to one end of the connecting ball valve near the preheater. The upper part of the connecting frame near the preheater has a movable opening. The connecting ball valve is provided with a connecting frame near the preheater, and the movable opening on the frame is used to guide and restrict the movement trajectory of the movable strip.

[0009] Furthermore, the movable strip is movably connected to the movable port, and a push handle is fixed at the end of the movable strip away from the push plate. A cone is fixed at the end of each connecting rod away from the movable strip. The movable strip is movably connected to the connecting frame through the movable port. A push handle is installed at the outer end, and the connecting rod is driven to move through the push plate at the inner end. A cone is provided at the end of each connecting rod to guide the bristles to accurately insert into the air outlet for cleaning.

[0010] This utility model has the following beneficial effects: This invention solves the problem of the long cleaning time required for the preheater vacuum regulating orifice plate cleaning device by setting up a preheater, a vacuum tube, a connecting ball valve, and a movable strip. When cleaning the main body of the vacuum regulating orifice plate in the vacuum tube, first close the vacuum valve on the exhaust pipe of the preheater, open the connecting ball valve, and then place the push plate on the connecting frame and then into the connecting ball valve. The movable strip is locked in the movable port on the connecting frame. Push the push handle to clean. After cleaning, remove the movable strip, close the connecting ball valve, and open the vacuum valve. The cleaning time required for the preheater vacuum regulating orifice plate cleaning device is shortened.

[0011] This invention solves the problem of inconvenient alignment of the cleaning holes in the preheater vacuum regulating orifice plate cleaning device by setting up a vacuum tube, connecting ball valve, and movable bar. After opening the connecting ball valve, the push plate is placed inside the connecting ball valve. After the movable bar is engaged in the movable port of the connecting frame, the push handle is pushed to move the movable bar. During the movement of the movable bar, the push plate is moved, so that the cone on the connecting rod is connected to the movable port on the connecting frame. This accurately aligns the cone with the gas outlet on the vacuum regulating orifice plate body. When the cone is inserted into the gas outlet, it guides the cleaning bristles on the connecting rod, allowing the cleaning bristles to brush off and remove the sulfide impurities blocking the gas outlet. This makes it more convenient to align the cleaning holes in the preheater vacuum regulating orifice plate cleaning device. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A perspective view of the assembly structure of a vacuum regulating orifice plate cleaning device for a preheater; Figure 2 This is a three-dimensional structural diagram of the preheater; Figure 3 This is a three-dimensional view of the vacuum tube section after it has been cut open. Figure 4 A three-dimensional view of the structure connecting the ball valve; Figure 5 This is a 3D structural diagram of the active bar; Figure 6 for Figure 5 Enlarged view of the structure at point A in the middle.

[0014] Figure label: 1. Preheater; 101. Exhaust pipe; 102. Vacuum valve; 103. Connecting pipe; 2. Vacuum extraction pipe; 201. Vacuum regulating orifice plate body; 202. Gas supply port; 3. Connecting ball valve; 301. Connecting bracket; 302. Movable port; 4. Movable bar; 401. Push plate; 402. Connecting rod; 403. Cone head; 404. Cleaning brush bristles; 405. Push handle. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0016] Please see Figure 1-5 This utility model relates to a preheater vacuum regulating orifice plate cleaning device, comprising a preheater 1, a vacuum pipe 2, a connecting ball valve 3, and a movable strip 4. The vacuum pipe 2 is located on one side of the preheater 1, and the preheater 1 preheats the regenerated cellulose solution passing through it. The end of the vacuum pipe 2 away from the connecting ball valve 3 is fixedly connected to an external vacuum main pipe. Vacuuming is performed on the regenerated cellulose solution entering the preheater 1 through the vacuum pipe 2. The end of the vacuum pipe 2 away from the preheater pipe is fixedly connected to the connecting ball valve 3 near the preheater 1. The connecting ball valve 3 controls the opening and closing of the end of the vacuum pipe 2 near the preheater 1. A pusher plate is movably connected to the end of the connecting ball valve 3 near the preheater 1. 401. When the pusher plate 401 is pushed, it drives the connecting rod 402 to move. A movable bar 4 is fixed at the end of the pusher plate 401 away from the connecting ball valve 3. When the movable bar 4 is pushed, it drives the pusher plate 401 to move. A connecting rod 402 is evenly fixed at the end of the pusher plate 401 near the connecting ball valve 3. The pusher plate 401 is connected to the cleaning brush 404 through the connecting rod 402. Several clusters of cleaning brushes 404 are fixed at equal intervals around the periphery of each connecting rod 402 in a ring array. When the connecting rod 402 enters the air outlet 202 on the vacuum regulating orifice plate body 201, it cleans the air outlet 202 in the vacuum regulating orifice plate body 201 through the cleaning brushes 404.

[0017] Specifically, an exhaust pipe 101 is horizontally and fixedly connected to the middle of the periphery of the preheater 1. A vacuum valve 102 is fixedly connected to the end of the exhaust pipe 101 away from the preheater 1. A connecting pipe 103 is fixedly connected to the end of the vacuum valve 102 away from the exhaust pipe 101. The preheater 1 discharges the steam through the exhaust pipe 101 and controls the opening and closing of the exhaust pipe 101 and the connecting pipe 103 through the vacuum valve 102.

[0018] Furthermore, the central axis of the connecting pipe 103 is perpendicular to the central axis of the preheater 1, and one end of the connecting pipe 103 is fixedly connected to the middle of the periphery of the vacuum pipe 2, so that the vacuum pipe 2 can evacuate the connecting pipe 103.

[0019] Furthermore, a vacuum regulating orifice plate body 201 is fixed on the inner wall of the vacuum tube 2. The vacuum regulating orifice plate body 201 is located on the side of the vacuum tube 2 away from the connecting ball valve 3. The vacuum regulating orifice plate body 201 has air supply holes 202 that are corresponding to each connecting rod 402. The vacuum tube 2 passes through the air supply holes 202 on the vacuum regulating plate during vacuuming.

[0020] Furthermore, a connecting bracket 301 is fixed at one end of the connecting ball valve 3 near the preheater 1. An movable port 302 is opened at the upper part of the connecting bracket 301 near the preheater 1. The connecting ball valve 3 restricts the push plate 401 through the connecting bracket 301 and is movably connected to the movable bar 4 through the movable port 302.

[0021] The operation process of this embodiment is as follows: When cleaning the vacuum regulating orifice plate body 201 in the vacuum tube 2 is required during operation, first close the vacuum valve 102 of the exhaust pipe 101 on the preheater 1, open the connecting ball valve 3, and then place the push plate 401 on the connecting frame 301 and then into the connecting ball valve 3. The movable strip 4 is locked in the movable port 302 on the connecting frame 301. Push the push handle 405 to clean. After cleaning, remove the movable strip 4, close the connecting ball valve 3, and open the vacuum valve 102. Specific Implementation Example 2

[0022] Please see Figure 1 , 3 Based on specific embodiment one, the movable strip 4 is movably connected to the movable port 302. The end of the movable strip 4 away from the push plate 401 is fixed with a push handle 405. Each connecting rod 402 is fixed with a cone head 403 at the end away from the movable strip 4. When the movable strip 4 is pushed by the push handle 405, it drives the push plate 401 to move. The cone head 403 guides the connecting rod 402 into the air outlet 202 of the vacuum regulating orifice plate body 201 of the vacuum tube 2.

[0023] The operation process of this embodiment is as follows: During operation, after opening the connecting ball valve 3, the push plate 401 is placed into the connecting ball valve 3. After the movable bar 4 is engaged in the movable port 302 of the connecting frame 301, the push handle 405 is pushed to drive the movable bar 4 to move. During the movement of the movable bar 4, the push plate 401 is driven to move, so that the cone 403 on the connecting rod 402 is movably connected to the movable port 302 on the connecting frame 301. The cone 403 is accurately aligned with the air outlet 202 on the vacuum regulating orifice plate body 201. When the cone 403 is inserted into the air outlet 202, the cleaning bristles 404 on the connecting rod 402 are guided to brush off and clean the sulfide impurities blocking the air outlet 202.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A preheater vacuum regulating orifice plate cleaning device, comprising a preheater (1), a vacuum pipe (2), a connecting ball valve (3), and a movable bar (4), characterized in that: A vacuum tube (2) is provided on one side of the preheater (1). A connecting ball valve (3) is fixedly connected to one end of the vacuum tube (2) near the preheater (1). A push plate (401) is movably connected to one end of the connecting ball valve (3) near the preheater (1). A movable strip (4) is fixed to one end of the push plate (401) away from the connecting ball valve (3). A connecting rod (402) is evenly fixed to one end of the push plate (401) near the connecting ball valve (3). Several clusters of cleaning bristles (404) are fixed at equal intervals around each connecting rod (402) in a ring array.

2. The preheater vacuum regulating orifice plate cleaning device according to claim 1, characterized in that: An exhaust pipe (101) is fixedly connected to the middle of the periphery of the preheater (1). A vacuum valve (102) is fixedly connected to the end of the exhaust pipe (101) away from the preheater (1). A connecting pipe (103) is fixedly connected to the end of the vacuum valve (102) away from the exhaust pipe (101).

3. The preheater vacuum regulating orifice plate cleaning device according to claim 2, characterized in that: The central axis of the connecting pipe (103) is perpendicular to the central axis of the preheater (1), and one end of the connecting pipe (103) is fixedly connected to the middle of the periphery of the vacuum pipe (2) via the vacuum valve (102).

4. The preheater vacuum regulating orifice plate cleaning device according to claim 3, characterized in that: The vacuum tube (2) has a vacuum regulating orifice plate body (201) fixed on its inner wall. The vacuum regulating orifice plate body (201) is located on the side of the vacuum tube (2) away from the connecting ball valve (3). The vacuum regulating orifice plate body (201) has gas delivery holes (202) that are connected to each connecting rod (402) in a one-to-one correspondence.

5. The preheater vacuum regulating orifice plate cleaning device according to claim 1, characterized in that: The connecting ball valve (3) is fixed with a connecting bracket (301) at one end near the preheater (1), and the connecting bracket (301) has an opening (302) at the upper part of the end near the preheater (1).

6. A preheater vacuum regulating orifice plate cleaning device according to claim 5, characterized in that: The movable bar (4) is movably connected to the movable port (302). A push handle (405) is fixed at the end of the movable bar (4) away from the push plate (401). A cone head (403) is fixed at the end of each connecting rod (402) away from the movable bar (4).

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