Steel ball ash removal experiment device

Abstract

The utility model discloses a steel ball deashing experiment device which is characterized in that a device main body is of a frame body structure, a ventilation pipeline is arranged above the device main body, a steel ball blanking hopper is vertically arranged inside the device main body, the top surface of the steel ball blanking hopper is sealed, and the front end of the ventilation pipeline is in sealed connection with an air outlet of a fan; the rear end of the ventilation pipeline is in sealed connection with the feeding end of the top face of the steel ball discharging hopper through a vertical bent pipe, steel ball feeding ports are formed in the top face of the bent position of the vertical bent pipe and the top face of the horizontal section of the vertical bent pipe, and steel ball feeding ports are also formed in the top face of the steel ball discharging hopper. The heat exchange pipe is detachably fixed to the sliding rail frame and is vertically arranged, the top end of the heat exchange pipe is detachably connected with the discharging end of the steel ball discharging hopper, a steel ball recycling box is arranged below the heat exchange pipe, and light sensors are arranged at the discharging end of the steel ball discharging hopper and the steel ball recycling box. The device can be used for a simulation experiment of steel ball dust removal in a heat exchange tube represented by a dimpled tube and a vortex section tube.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a steel ball dust cleaning experimental device. Background Art

[0002] Chinese patent CN2019208622580, the cellular tube is a heat exchange tube, the cylindrical spiral micro-ribs on it can increase the heat exchange area of the inner wall, the spherical concave can further improve the heat exchange effect, and the spherical concave is arranged on the cylindrical spiral line, and the cylindrical spiral line where the spherical concave is arranged has a rotation direction opposite to that of the cylindrical spiral micro-ribs, which can better enhance the boundary layer disturbance of the fluid in the tube and destroy the laminar bottom layer, thereby further improving the heat transfer coefficient. Chinese patent CN2019208622595, the vortex tube is also a heat exchange tube, which can form an effect of scaling along the axial tube inner diameter, while causing the medium in the tube to advance in a spiral shape, making the inner wall of the tube less likely to adhere to the medium flowing through and less likely to scale, thereby improving the heat exchange effect, and the spherical concave is arranged on the cylindrical spiral line, which is easy to process.

[0003] As the basic heat exchange elements of the heat exchanger, the butyl tube and vortex tube are prone to cause dust accumulation and blockage in the heat exchange tube when the flue gas containing a lot of dust and particles passes through the heat exchanger tube, thereby affecting the heat exchange effect of the heat exchanger. Due to the special tube structure of the butyl tube and vortex tube, the use of steel ball vibration can effectively solve the problem of dust accumulation in the butyl tube and vortex tube. However, at present, there is no experimental platform that can be used to conduct simulation experiments on steel ball cleaning of heat exchange tubes represented by butyl tube and vortex tube. Utility Model Content

[0004] In view of the problems existing in the above-mentioned prior art, the present invention aims to provide a steel ball cleaning experimental device for conducting a simulation experiment of steel ball cleaning inside heat exchange tubes represented by cellular tubes and vortex tubes.

[0005] In order to achieve the above-mentioned purpose, the present invention aims to provide a steel ball dust cleaning experimental device, including a device body and a heat exchange tube, the device body is a frame structure, and also includes a fan, a ventilation duct, a steel ball lower hopper and a slide rail frame, the fan is fixedly arranged at the top front end of the device body, the ventilation duct is arranged above the device body, the steel ball lower hopper is vertically arranged inside the device body, the top surface of the steel ball lower hopper is sealed, the front end of the ventilation duct is sealed with the air outlet of the fan, and the rear end of the ventilation duct is connected vertically to the air outlet of the fan. The straight bend pipe is sealed and connected to the feed end of the top surface of the steel ball hopper. Steel ball feed ports are provided on the top surface of the vertical bend pipe and the top surface of the horizontal section. A steel ball feed port is also provided on the top surface of the steel ball hopper. The slide rail frame is slid back and forth on the main body of the device. The heat exchange tube is detachably fixed on the slide rail frame. The heat exchange tube is arranged vertically, and its top end is detachably and sealedly connected to the discharge end of the steel ball hopper. A steel ball recovery box is arranged below it. Light sensors are provided on the discharge end of the steel ball hopper and the steel ball recovery box.

[0006] In the above scheme: the rear end of the ventilation duct branches into three branch pipes, and the ends of the three branch pipes are connected to a steel ball hopper through a vertical elbow. The discharge end of each steel ball hopper is connected to a heat exchange tube. The three heat exchange tubes are arranged side by side on the left and right, and are all fixed on the same slide rail rack. This allows three groups of different heat exchange tubes to be tested for steel ball cleaning at the same time, avoiding frequent changes to the experimental device to adapt to experiments with heat exchange tubes of different diameters. It can greatly shorten the testing time of a large number of different sample tubes. For example, steel ball cleaning tests can be carried out on 57mm, 45mm and 32mm heat exchange tubes at the same time.

[0007] In the above scheme: each branch pipe is provided with a flow control valve and a flow meter. By adjusting the opening of the flow control valve, a dust cleaning experiment of the steel ball at different flow rates can be realized, for example, a dust cleaning experiment of the steel ball at a flow rate of 0-30m / s.

[0008] In the above scheme: the middle of the left and right sides of the device body and the bottom of the left and right sides are symmetrically provided with slide rails extending forward and backward. The slide rail frame includes a roller shaft slidingly set between the two middle slide rails and a roller shaft between the two bottom slide rails. The two roller shafts correspond to each other in the upper and lower parts and are connected by three connecting rods. The positions of the three connecting rods correspond to the three heat exchange tubes one by one. Each connecting rod is provided with two clamps at intervals above and below. The corresponding heat exchange tubes can be detachably fixed in the two clamps. The design of the clamps can realize the convenient disassembly and assembly of the heat exchange tubes, which can significantly shorten the disassembly and assembly time of the heat exchange tubes and save testing time.

[0009] In the above scheme, two sets of slide rails are symmetrically arranged, one in front and one in the back. These two sets of slide rails can slide alternately to the bottom of the steel ball discharge hopper, so that the heat exchange tubes on them can be connected to the corresponding steel ball discharge hopper. The front and rear ends of the device body are equipped with loading and unloading plates. These loading and unloading plates are strip-shaped plates extending left and right. Both slide rails can slide relative to each other to the top of the loading and unloading plates on the corresponding sides to achieve the loading and unloading of the heat exchange tubes. The loading and unloading plates can provide support when the heat exchange tubes are being assembled and disassembled. The design of alternating loading and unloading of heat exchange tubes ensures the continuity of the experimental process, avoids excessive time spent on loading and unloading heat exchange tubes, and can significantly save testing time when testing a large number of sample tubes.

[0010] In the above scheme: the slide rail is provided with an openable and closable guardrail. When the guardrail is in the closed state, the slide rail frame can abut against it forward. At this time, the heat exchange tubes on the slide rail frame just correspond to the positions of the steel ball lower hopper. When the guardrail is opened, the slide rail frame continues to slide forward, and the guardrail plays a positioning role.

[0011] After completing the single-group steel ball cleaning test, open the guardrail, slide the heat exchange tube group (one group of slide rails and the heat exchange tubes on it) to the front loading and unloading plate for disassembly, and reinstall new experimental heat exchange tubes. After closing the guardrail, the preparation test tube group (the other group of slide rails and the heat exchange tubes on it slide) is connected to the bottom of the steel ball hopper. After the connection is completed, start a new experiment; after the experiment, the preparation test tube group slides back to the rear loading and unloading plate for disassembly, and reinstall new experimental heat exchange tubes. The heat exchange tube group on the front loading and unloading plate slides to the bottom of the steel ball hopper for connection. After the connection is completed, start a new experiment. Repeat this process to achieve continuity of the experimental process and avoid spending too much time on loading and unloading heat exchange tubes.

[0012] In the above scheme: the steel ball recovery box is single and is located directly below the three steel ball lower hoppers. When the heat exchange tube is connected to the corresponding steel ball lower hopper, the steel balls can fall into the steel ball recovery box after passing through the heat exchange tube.

[0013] In the above solution, the discharge end of the steel ball discharge hopper is connected to the corresponding heat exchange tube via a sealing pipe clamp. The sealing pipe clamp has a built-in split sealing ring. The sealing pipe clamp is simple in structure, efficient, and saves time for experimental assembly and disassembly. The split sealing ring is compressed by the sealing pipe clamp to seal the heat exchange tube and the steel ball discharge hopper.

[0014] The beneficial effects of the present invention are: 1. There are three steel ball feeding ports on the steel ball hopper and the vertical bend pipe, which can be used to simulate and test at which angle the steel balls are put in for the best cleaning effect in actual industrial applications; 2. After the steel balls are put in, they pass through the light sensor on the steel ball hopper, and then fall into the heat exchange tube for back and forth collision cleaning, and finally pass through the light sensor on the steel ball recovery box and fall into the steel ball recovery box; by recording the time the steel balls pass through the two light sensors and calculating the time difference between the two, the residence time of the steel balls in the heat exchange tube is obtained, and the cleaning effect of the steel balls is determined by the residence time of the steel balls. The longer the steel balls stay in the tube, the more times the steel balls collide back and forth due to the special heat exchange tube structure of the cellular tube and the vortex tube, the greater the momentum loss and the better the cleaning effect.

[0015] In short, the utility model records the residence time of the steel balls in the heat exchange tube to equate the momentum loss of the steel balls in the tube, and then verifies the cleaning effect of the steel balls in heat exchange tubes with different parameters, different steel ball entry angles and different steel ball wind speed environments. This simplified experimental method to verify the cleaning effect of the steel balls has the advantages of simplicity, efficiency, convenience, low experimental cost and short experimental time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 yes Figure 1 Enlarged schematic diagram of point A in the middle.

[0019] Figure 3 yes Figure 1 Enlarged schematic diagram of point B in the middle.

[0020] Figure 4 This is a schematic diagram of a single set of slide rail racks. DETAILED DESCRIPTION

[0021] like Figure 1 As shown in FIG. 4 , a steel ball dust cleaning experimental device is mainly composed of a device body 1, a fan 3, a ventilation duct 4, a steel ball hopper 5, a slide rail frame 6 and a heat exchange tube 2.

[0022] The device body 1 is a frame structure, specifically a vertical rectangular frame structure. The fan 3 is fixedly mounted at the top front end of the device body 1. The ventilation duct 4 is arranged above the device body 1. The steel ball hopper 5 is arranged vertically inside the device body 1. The top surface of the steel ball hopper 5 is sealed but has an opening as a feed end. The front end of the ventilation duct 4 is sealedly connected to the air outlet of the fan 3, and the rear end of the ventilation duct 4 is sealedly connected to the feed end of the top surface of the steel ball hopper 5 via a vertical bend 7. Steel ball feed ports 8 are provided on the top surface of the bend of the vertical bend 7 and the top surface of the horizontal section. A steel ball feed port 8 is also provided on the top surface of the steel ball hopper 5. The steel ball feed port 8 at the bend is inclined at 45 degrees.

[0023] The slide rail frame 6 is slidably arranged on the device body 1, and the heat exchange tube 2 is detachably fixed on the slide rail frame 6. The heat exchange tube 2 is arranged vertically, and its top end is detachably and sealedly connected to the discharge end of the steel ball hopper 5. A steel ball recovery box 9 is arranged below it, and light sensors are provided on the discharge end of the steel ball hopper 5 and the steel ball recovery box 9.

[0024] Specifically, the discharge end of the steel ball discharge hopper 5 is connected to the corresponding heat exchange tube 2 via a sealing pipe clamp 15. The sealing pipe clamp 15 is equivalent to a clamp structure and has a built-in split sealing ring. The sealing pipe clamp 15 has the characteristics of simple structure, high efficiency, and saves experimental assembly and disassembly time. The split sealing ring is compressed by the sealing pipe clamp 15 to seal the connection between the heat exchange tube 2 and the steel ball discharge hopper 5.

[0025] The rear end of the ventilation duct 4 branches into three branch pipes, and the ends of the three branch pipes are connected to the steel ball discharge hopper 5 through the vertical elbow 7. The discharge end of each steel ball discharge hopper 5 is connected to the heat exchange tube 2. The three heat exchange tubes 2 are arranged side by side on the left and right, and are all fixed on the same slide rail frame 6. It is possible to carry out steel ball cleaning tests on three groups of different heat exchange tubes 2 at the same time, avoiding frequent changes in the experimental equipment to adapt to experiments on heat exchange tubes 2 with different diameters, and can greatly shorten the testing time of a large number of different sample tubes. For example, steel ball cleaning tests on 57mm, 45mm and 32mm heat exchange tubes 2 can be carried out at the same time.

[0026] Each branch pipe is provided with a flow regulating valve 10 and a flow meter 11. By adjusting the opening of the flow regulating valve 10, a dust cleaning experiment of the steel ball at different flow rates can be realized, for example, a dust cleaning experiment of the steel ball at a flow rate of 0-30m / s.

[0027] The middle of the left and right sides of the device body 1 and the bottom of the left and right sides are symmetrically provided with slide rails 12 extending forward and backward. The slide rail frame 6 includes a roller shaft 61 slidably set between the two middle slide rails 12 and a roller shaft 61 between the two bottom slide rails 12. The two roller shafts 61 correspond to each other in the upper and lower parts and are connected by three connecting rods 62. The positions of the three connecting rods 62 correspond to the three heat exchange tubes 2 one by one. Each connecting rod 62 is provided with two clamps 63 at intervals in the upper and lower parts. The corresponding heat exchange tube 2 can be detachably fixed in the two clamps 63. The design of the clamps 63 can realize the convenient disassembly and assembly of the heat exchange tube 2, which can significantly shorten the disassembly and assembly time of the heat exchange tube 2 and save testing time.

[0028] Two sets of slide rails 6 are symmetrically arranged, one in front and one behind. The two sets of slide rails 6 can slide alternately to the bottom of the steel ball discharge hopper 5, so that the heat exchange tubes 2 on them can be connected to the corresponding steel ball discharge hopper 5. The front and rear ends of the device body 1 are equipped with loading and unloading plates 13. The loading and unloading plates 13 are strip-shaped plates extending left and right. The two slide rails 6 can slide relative to each other to the top of the loading and unloading plates 13 on the corresponding side to achieve the loading and unloading of the heat exchange tubes 2. The loading and unloading plates 13 can provide support when the heat exchange tubes 2 are being installed and removed. The design of alternating loading and unloading of the heat exchange tubes 2 ensures the continuity of the experimental process, avoids wasting time when loading and unloading the heat exchange tubes 2, and can greatly save testing time when testing a large number of sample tubes.

[0029] The steel ball recovery box 9 is single and is located directly below the three steel ball lower hoppers 5 . When the heat exchange tube 2 is connected to the corresponding steel ball lower hopper 5 , the steel balls can fall into the steel ball recovery box 9 after passing through the heat exchange tube 2 .

[0030] The slide rail 12 is provided with an openable and closable guardrail 14. When the guardrail 14 is in the closed state, the slide rail frame 6 can abut against it forward. At this time, the heat exchange tubes 2 on the slide rail frame 6 just correspond to the positions of the steel ball lower hopper 5. When the guardrail 14 is opened, the slide rail frame 6 continues to slide forward, and the guardrail plays a positioning role.

[0031] After completing the single-group steel ball cleaning test, open the guardrail 14, and the heat exchange tube group (one group of slide rail frames 6 and the heat exchange tubes 2 thereon) slide to the front loading and unloading plate 13 for disassembly, and reinstall the new experimental heat exchange tubes 2. After closing the guardrail 14, the preparatory test tube group (another group of slide rail frames 6 and the heat exchange tubes 2 thereon) slide to the bottom of the steel ball discharge hopper 5 for connection. After the connection is completed, start a new experiment. After the experiment is over, the preparatory test tube group slides back to the rear loading and unloading plate 13 for disassembly, and reinstall the new experimental heat exchange tubes 2. The heat exchange tube group on the front loading and unloading plate 13 slides to the bottom of the steel ball discharge hopper 5 for connection. After the connection is completed, start a new experiment. This reciprocating process is used to achieve continuity of the experimental process and avoid spending too much time on loading and unloading the heat exchange tubes 2.

Claims

1. A steel ball dust removal experimental device, comprising a device body (1) and a heat exchange tube (2), wherein the device body (1) is a frame structure, and is characterized in that: The device further comprises a fan (3), a ventilation duct (4), a steel ball hopper (5) and a slide rail frame (6), wherein the fan (3) is fixedly arranged at the top front end of the device body (1), the ventilation duct (4) is arranged above the device body (1), the steel ball hopper (5) is arranged vertically inside the device body (1), the top surface of the steel ball hopper (5) is sealed, the front end of the ventilation duct (4) is sealedly connected to the air outlet of the fan (3), and the rear end of the ventilation duct (4) is sealedly connected to the feed end of the top surface of the steel ball hopper (5) through a vertical elbow (7). A steel ball feed port (8) is provided on the top surface of the bending part of the vertical bend pipe (7) and the top surface of the horizontal section. A steel ball feed port (8) is also provided on the top surface of the steel ball discharge hopper (5). The slide rail frame (6) is slidably arranged on the device body (1). The heat exchange tube (2) is detachably fixed on the slide rail frame (6). The heat exchange tube (2) is arranged vertically, and its top end is detachably sealedly connected to the discharge end of the steel ball discharge hopper (5). A steel ball recovery box (9) is arranged below it. The discharge end of the steel ball discharge hopper (5) and the steel ball recovery box (9) are both provided with light sensors.

2. The steel ball dust cleaning experimental device according to claim 1, characterized in that: The rear end of the ventilation duct (4) is divided into three branch pipes, and the ends of the three branch pipes are connected to the steel ball hopper (5) through vertical elbows (7). The discharge end of each steel ball hopper (5) is connected to a heat exchange pipe (2). The three heat exchange pipes (2) are arranged side by side and are all fixed on the same slide rail frame (6).

3. The steel ball dust cleaning experimental device according to claim 2, characterized in that: Each branch pipe is provided with a flow regulating valve (10) and a flow meter (11).

4. The steel ball dust cleaning experimental device according to claim 2, characterized in that: The middle of the left and right sides and the bottom of the left and right sides of the device body (1) are symmetrically provided with slide rails (12) extending forward and backward. The slide rail frame (6) includes a roller shaft (61) slidably provided between the two middle slide rails (12) and a roller shaft (61) between the two bottom slide rails (12). The two roller shafts (61) correspond to each other up and down and are connected by three connecting rods (62). The positions of the three connecting rods (62) correspond to the three heat exchange tubes (2) one by one. Two clamps (63) are provided on each connecting rod (62) at intervals up and down. The corresponding heat exchange tube (2) can be detachably fixed in the two clamps (63).

5. The steel ball dust cleaning experimental device according to claim 4, characterized in that: The slide rail frames (6) are symmetrically arranged in two groups, one in front and one in the back. The two groups of slide rail frames (6) can slide alternately to the bottom of the steel ball discharge hopper (5), so that the heat exchange tubes (2) thereon can be connected to the corresponding steel ball discharge hopper (5). The front and rear ends of the device body (1) are both provided with upper and lower material plates (13). The upper and lower material plates (13) are strip plates extending left and right. The two slide rail frames (6) can slide relatively to the top of the corresponding side upper and lower material plates (13) to realize the loading and unloading of the heat exchange tubes (2).

6. The steel ball dust cleaning experimental device according to claim 5, characterized in that: The slide rail (12) is provided with an openable and closable barrier (14). When the barrier (14) is in a closed state, the slide rail frame (6) can abut against it forward. At this time, each heat exchange tube (2) on the slide rail frame (6) corresponds exactly to the position of the steel ball hopper (5). When the barrier (14) is opened, the slide rail frame (6) continues to slide forward.

7. The steel ball dust cleaning experimental device according to claim 5, characterized in that: The steel ball recovery box (9) is single and is located directly below the three steel ball lower hoppers (5).

8. The steel ball dust cleaning experimental device according to claim 1, characterized in that: The discharge end of the steel ball hopper (5) is connected to the corresponding heat exchange tube (2) through a sealing tube clamp (15), and the sealing tube clamp (15) is built with a split sealing ring.

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