Boiler soot blower spring valve pressure bearing capacity detection equipment

Abstract

The utility model relates to the field of spring valve detection, in particular to boiler soot blower spring valve pressure bearing capacity detection equipment which comprises a workbench, an abutting device arranged on the workbench and used for clamping a boiler soot blower spring valve and a detection device used for conducting pressure detection on the boiler soot blower spring valve. The abutting device comprises a clamping assembly, and the clamping assembly comprises a fixing block installed on the workbench, a first screw fixedly connected to the side, away from the working disc, of the fixing block, a positioning clamping block slidably connected to the fixing block and an adjusting nut which is in threaded connection to the first screw and used for fixing the position of the positioning clamping block. The positioning clamping block is provided with a sliding groove allowing the first screw to penetrate through, the positioning clamping block is located between the adjusting nut and the fixing block, and the workbench is provided with a communication hole allowing detection gas to pass through. The spring valve pressure detection device has the effects of reducing external influence on the spring valve during pressure detection and improving the accuracy of a spring valve pressure detection result.

Description

Technical Field

[0001] The present application relates to the field of spring valve detection, and in particular to a device for detecting the pressure bearing capacity of a boiler sootblower spring valve. Background Art

[0002] Boiler soot blower is a device used in boilers. It uses the energy of the sound field to repeatedly pull and compress the compacted ash on the walls and bottom of the boiler through alternating density waves at a certain frequency, so that the compacted ash is loosened and falls off due to fatigue, and then falls into the ash hopper and is discharged with the flue gas or under the action of gravity. The spring valve is used in the blowing pipe of the boiler soot blower to close the blowing pipe when soot blowing is not needed to prevent the backflow of smoke in the boiler.

[0003] The boiler sootblower spring valve is a key component for controlling the working pressure of the sootblower. Its pressure adjustment directly affects the working effect of the sootblower. Therefore, the detection of the maximum pressure value of the spring valve is an important part of the spring valve performance detection. At present, the pressure detection of the spring valve is mostly carried out directly on the spring valve installed on the blowing pipe in the boiler system. The detection result is easily affected by the external environment, resulting in large errors. Utility Model Content

[0004] In order to reduce the external influence on the spring valve during pressure detection and improve the accuracy of the spring valve pressure detection result, the present application provides a boiler sootblower spring valve pressure bearing capacity detection device.

[0005] The present application provides a boiler sootblower spring valve pressure bearing capacity detection device adopts the following technical solution:

[0006] A boiler sootblower spring valve pressure bearing capacity detection device, comprising a workbench, a clamping device arranged on the workbench for clamping the boiler sootblower spring valve, and a detection device for performing pressure detection on the boiler sootblower spring valve, the clamping device comprising a clamping assembly, the clamping assembly comprising a fixed block installed on the side of the workbench away from the ground, a first screw fixedly connected to the fixed block on the side away from the working disk, a positioning clamp block slidably connected to the fixed block, and an adjusting nut threadedly connected to the first screw for fixing the position of the positioning clamp block, the positioning clamp block is provided with a sliding groove for the first screw to pass through, the positioning clamp block is located between the adjusting nut and the fixed block, and the workbench is provided with a connecting hole for the detection gas to pass through.

[0007] By adopting the above technical solution, when in use, the staff places the boiler sootblower spring valve in the middle position of the workbench so that the flange of the boiler sootblower spring valve abuts against the surface of the workbench, the staff slides the positioning clamp so that the positioning clamp abuts against the flange close to one side of the workbench, and screws the adjusting nut so that the positioning clamp abuts against the flange of the boiler sootblower, thereby fixing the boiler sootblower spring valve on the workbench, thereby reducing the possibility of the spring valve being affected by external factors during pressure detection, and improving the accuracy of the spring valve pressure detection result.

[0008] Optionally, the workbench includes a support base and a work disk fixedly connected to a side of the support base away from the ground, and the communicating hole is located on the work disk.

[0009] By adopting the above technical solution, when in use, the staff abuts the flange of the boiler sootblower spring valve against the working plate, and the central axis of the center of the flange is aligned with the central axis of the connecting hole.

[0010] Optionally, a plurality of the clamping assemblies are arranged at intervals circumferentially around the center of the working disk.

[0011] By adopting the above technical solution, when in use, the staff operates multiple clamping components to fix the boiler sootblower spring valve, so that the boiler sootblower spring valve is fixed more firmly.

[0012] Optionally, the detection device includes a pump body, an input pipe installed on the pump body, a pipe joint installed on the side of the working disk close to the ground, a pressure measuring tube installed on the pipe joint, and a pressure indicator arranged at the other end of the pressure measuring tube, the input pipe is connected to the pipe joint, and the pipe joint is installed at the connecting hole.

[0013] By adopting the above technical solution, when in use, the staff starts the pump body and determines the maximum pressure-bearing value of the boiler sootblower spring valve by observing the data of the pressure indicator, so that the staff can judge the pressure value more accurately and intuitively.

[0014] Optionally, the clamping device also includes a mounting block installed on the side of the workbench away from the ground, a fixing component for fixing the spring valve, a connecting member for installing the fixing component, and a driving member arranged on the mounting block for driving the fixing component to move.

[0015] By adopting the above technical solution, when in use, after the staff places the boiler sootblower spring valve on the working disk, the staff operates the driving member to move the fixing assembly installed on the connecting member toward the working disk, thereby fixing the boiler sootblower spring valve on the working disk.

[0016] Optionally, the connecting member includes a second screw rod rotatably connected to the side of the mounting block away from the workbench and a guide rod fixedly connected to the side of the mounting block away from the workbench, and the length of the guide rod in the vertical direction is smaller than the second screw rod.

[0017] By adopting the above technical solution, when in use, the staff operates the driving member to move the fixing assembly out of the guide rod, thereby making it more convenient for the staff to place the boiler sootblower spring valve.

[0018] Optionally, the fixing assembly includes an abutment block threadedly connected to the second screw rod, a spring arranged on the side of the abutment block close to the mounting block, an abutment plate fixedly connected to the end of the spring away from the abutment block, and a clamping pad fixedly connected to the side of the abutment plate away from the spring, a mounting groove is provided on the side of the abutment block close to the mounting block, the spring is fixedly connected to the bottom of the mounting groove, the abutment plate is slidably connected in the mounting groove, and limiting blocks are fixedly connected to the opposite side walls of the mounting groove.

[0019] By adopting the above technical solution, when in use, the staff operates the driving member to move the fixing assembly threadedly connected to the second screw toward the working disk. When the clamping pad abuts against the flange of the boiler sootblower spring valve, the elastic force of the spring makes the abutment force between the flange and the working disk stronger, thereby making the boiler sootblower spring valve more firmly fixed.

[0020] Optionally, the driving member includes a motor fixedly connected to the mounting block, a first bevel gear fixedly connected to an output shaft of the motor, and a second bevel gear fixedly connected to the second screw, and the first bevel gear is meshed with the second bevel gear.

[0021] By adopting the above technical solution, when in use, the staff starts the motor, and the motor output shaft rotates to drive the first bevel gear to rotate, thereby driving the second bevel gear meshing therewith to rotate, so that the second screw rotates.

[0022] Optionally, a pressure detector is provided on a side of the clamping pad close to the mounting block.

[0023] By adopting the above technical solution, the pressure detector enables the staff to control the fixing pressure of the boiler sootblower spring valve more accurately, thereby reducing the damage to the spring and making the boiler sootblower spring valve more firmly fixed.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The present application provides a clamping assembly, and the staff slides the positioning clamp block so that the positioning clamp block abuts against the flange of the boiler sootblower spring valve. The boiler sootblower spring valve can be fixed on the workbench by screwing the adjusting nut. By providing a detection device, the staff can detect the boiler sootblower spring valve alone on the work plate, thereby reducing the external influence on the spring valve during pressure detection and improving the accuracy of the spring valve pressure detection;

[0026] 2. The present application provides a tightening device. By providing a fixing assembly, a connecting piece and a driving piece, the staff can start the motor to control the installation block to move toward the working disk, and fix the boiler sootblower spring valve on the working disk. The staff does not need to manually screw the adjustment nut. At the same time, the elastic force of the spring on the flange of the spring valve makes the contact force between the flange and the working disk greater, thereby making the boiler sootblower spring valve more firmly fixed.

[0027] 3. The present application sets up a detection device so that the staff can determine the pressure value of the boiler sootblower spring valve by observing the value change of the pressure indicator, making the detection result more intuitive. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of this application.

[0029] Figure 2 yes Figure 1 Enlarged schematic diagram at point A in the middle.

[0030] Figure 3 It is a schematic diagram of the structure of the tightening device of the present application.

[0031] Figure 4 It is a cross-sectional schematic diagram of the tightening device of the present application.

[0032] Explanation of the accompanying drawings: 1. workbench; 11. support seat; 12. work disk; 2. tightening device; 21. clamping assembly; 211. fixed block; 212. first screw rod; 213. positioning clamp block; 214. adjusting nut; 215. buffer pad; 216. slide groove; 22. fixed assembly; 221. abutment block; 222. spring; 223. abutment plate; 224. clamping pad; 225. mounting groove; 23. connecting member; 231. second screw rod; 232. guide rod; 24. driving member; 241. motor; 242. first bevel gear; 243. second bevel gear; 3. detection device; 31. pump body; 32. input pipe; 33. pipe joint; 34. pressure measuring tube; 35. pressure indicator. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-4 This application is described in further detail.

[0034] The embodiment of the present application discloses a device for detecting the pressure bearing capacity of a boiler sootblower spring valve.

[0035] Example 1

[0036] Reference Figure 1 and Figure 2 A boiler sootblower spring valve pressure bearing capacity detection device comprises a workbench 1 placed on the ground, a clamping device 2 arranged on the side of the workbench 1 away from the ground for clamping the boiler sootblower spring valve, and a detection device 3 for pressure detection of the boiler sootblower spring valve, the clamping device 2 comprises a clamping assembly 21 for fixing the position of the boiler sootblower spring valve, the workbench 1 comprises a support seat 11 placed on the ground and a working disk 12 fixedly connected to the side of the support seat 11 away from the ground, a connecting hole for pressure detection gas to pass through is opened at the center of the working disk 12, the detection device 3 comprises a pump body 31, an input pipe 32 installed on the pump body 31, a pipe joint 33 installed on the side of the working disk 12 close to the ground, a pressure measuring tube 34 installed on one side of the pipe joint 33, and a pressure indicator 35 arranged at the other end of the pressure measuring tube 34, the input pipe 32 is connected to the pipe joint 33, and the pipe joint 33 is installed at the connecting hole.

[0037] When in use, the staff operates the clamping assembly 21 to fix the boiler sootblower spring valve on the workbench 1, starts the pump body 31, and continuously introduces gas into the input pipe 32 through the pump body 31. The gas finally acts on the valve core of the spring valve through the connecting hole. As the gas pressure continues to increase, the gas pressure reaches the limit value that the reset spring 222 can withstand, and the gas pressure pushes the valve core open. At this time, the value displayed by the pressure indicator 35 suddenly drops. The maximum pressure measured by the pressure gauge before this is the maximum bearing pressure of the spring valve.

[0038] Reference Figure 2 The clamping assembly 21 includes a fixed block 211 fixedly connected to the side of the working disk 12 away from the ground, a first screw rod 212 fixedly connected to the side of the fixed block 211 away from the working disk 12, a positioning clamp block 213 slidably connected to the side of the fixed block 211 away from the working disk 12, and an adjusting nut 214 threadedly connected to the first screw rod 212 for fixing the position of the positioning clamp block 213. The positioning clamp block 213 is provided with a slide groove 216 for the first screw rod 212 to pass through, and the slide groove 216 is arranged along the length direction of the positioning clamp block 213, and the positioning clamp block 213 is located between the adjusting nut 214 and the fixed block 211.

[0039] When in use, the staff places the boiler sootblower spring valve at the center of the working disk 12, and the flange of the boiler sootblower spring valve abuts against the upper surface of the working disk 12. The staff moves the positioning clamp 213 to the side of the positioning clamp 213 close to the working disk 12 and abuts against the side of the flange of the spring valve away from the working disk 12. The staff rotates the adjusting nut 214 to move the adjusting nut 214 toward the working disk 12 until the adjusting nut 214 fixes the positioning clamp 213. At this time, the spring valve is fixed on the working disk 12.

[0040] Reference Figure 2 In order to make the clamping assembly 21 fix the boiler sootblower spring valve more firmly, a plurality of clamping assemblies 21 are arranged at intervals around the center of the working disk 12. When in use, a plurality of positioning clamps 213 are arranged along the flange of the boiler sootblower spring valve to fix the boiler sootblower spring valve in different directions, so that the boiler sootblower spring valve is fixed on the working disk 12 more firmly.

[0041] In order to increase the friction between the positioning clamp 213 and the flange of the boiler sootblower spring valve, so that the positioning clamp 213 fixes the boiler sootblower spring valve more firmly, a buffer pad 215 is fixedly connected to the side of the positioning clamp 213 close to the working disk 12, and the buffer pad 215 is made of rubber.

[0042] The implementation principle of Example 1 is as follows: when in use, the staff rotates the adjusting nut 214 to move the positioning clamp 213 toward the outer periphery of the working disk 12, and then the flange of the boiler sootblower spring valve abuts against the working disk 12, and the connecting hole is connected with the valve core of the boiler sootblower spring valve. The staff moves the positioning clamp 213 to the side of the positioning clamp 213 close to the working disk 12 and abuts against the flange surface of the boiler sootblower spring valve, rotates the adjusting nut 214, so that the positioning clamp 213 fixes the boiler sootblower spring valve on the working disk 12, starts the pump body 31, and the gas acts on the valve core through the input pipe 32. When the air pressure reaches the limit value that the reset spring 222 of the boiler sootblower spring valve can withstand, the valve core is pushed open by the gas, and the pressure indicator 35 shows a sudden drop in reading at this time. The maximum pressure measured by the pressure indicator 35 before this is the maximum bearing pressure of the boiler sootblower spring valve.

[0043] Example 2

[0044] Reference Figure 3 and Figure 4 The difference between this embodiment and embodiment 1 is that the clamping device 2 also includes a fixing component 22 for fixing the boiler sootblower spring valve, a connecting member 23 for installing the fixing component 22, and a driving member 24 arranged on the mounting block for driving the fixing component 22 to move.

[0045] When in use, the staff places the boiler sootblower spring valve on the working disk 12 , at which time the flange of the boiler sootblower spring valve abuts against the working disk 12 , and the staff operates the driving member 24 so that the fixing assembly 22 fixes the boiler sootblower spring valve on the working disk 12 .

[0046] Reference Figure 4 The connecting member 23 includes a second screw rod 231 rotatably connected to the side of the mounting block away from the working disk 12 and a guide rod 232 fixedly connected to the side of the mounting block away from the working disk 12, and the length of the guide rod 232 in the vertical direction is less than the length of the second screw rod 231 in the vertical direction.

[0047] The driving member 24 includes a motor 241 fixedly connected to the mounting block, a first bevel gear 242 fixedly connected to the output shaft of the motor 241 , and a second bevel gear 243 fixedly connected to the second screw rod 231 . The first bevel gear 242 meshes with the second bevel gear 243 .

[0048] Reference Figure 4 The fixing assembly 22 includes an abutment block 221 threadedly connected to the second screw rod 231, a spring 222 disposed on the side of the abutment block 221 close to the mounting block, an abutment plate 223 fixedly connected to the end of the spring 222 away from the abutment block 221, and a clamping pad 224 fixedly connected to the end of the abutment plate 223 away from the spring 222. Among them, a mounting groove 225 is provided on the side of the abutment block 221 close to the mounting block, the spring 222 is fixedly connected to the bottom of the mounting groove 225, the abutment plate 223 is slidably connected in the mounting groove 225, and the two opposite side walls of the mounting groove 225 are fixedly connected to limit blocks.

[0049] When the staff needs to fix the boiler sootblower spring valve on the working disk 12, the staff starts the motor 241, and the output shaft of the motor 241 rotates to drive the first bevel gear 242 to rotate, so that the second bevel gear 243 meshing with it rotates, thereby driving the second screw 231 to rotate, and the abutment block 221 threadedly connected to the second screw 231 moves in the direction away from the working disk 12. When the abutment block 221 moves until the abutment block 221 is separated from the guide rod 232, the abutment block 221 rotates, which makes it convenient for the staff to place the boiler sootblower spring valve on the working disk 12; after the staff places the boiler sootblower spring valve on the working disk 12, the staff starts the motor 241, so that the fixing assembly 22 threadedly connected to the second screw 231 moves toward the working disk 12 until the clamping pad 224 abuts against the flange of the boiler sootblower spring valve, thereby fixing the boiler sootblower spring valve.

[0050] In order to further facilitate the staff to control the motor 241, a pressure detector is arranged on the side of the clamping pad 224 close to the mounting block. The pressure detector and the motor 241 are both connected to the PLC controller. When the pressure detected in real time by the pressure detector reaches the set value, the PLC controller controls the motor 241 to stop. At this time, the boiler sootblower spring valve is fixed on the working disk 12.

[0051] The implementation principle of Example 2 is as follows: when in use, the staff operates the PLC controller to start the motor 241, thereby driving the abutment block 221 to move toward the working disk 12. When the pressure detector reaches the set value, the PLC controller controls the motor 241 to stop. At this time, the boiler sootblower spring valve is fixed on the working disk 12. Then the staff starts the pump body 31, and the gas acts on the valve core through the input pipe 32. When the air pressure acting on the valve core reaches the limit value that the reset spring 222 of the boiler sootblower spring valve can withstand, the valve core is pushed open by the gas. At this time, the pressure indicator 35 shows a sudden drop in reading. The maximum pressure measured by the pressure indicator 35 before this is the maximum bearing pressure of the boiler sootblower spring valve.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A boiler sootblower spring valve pressure bearing capacity detection device, characterized in that: The invention comprises a workbench (1), a clamping device (2) arranged on the workbench (1) for clamping a boiler sootblower spring valve, and a detection device (3) for performing pressure detection on the boiler sootblower spring valve, wherein the workbench (1) comprises a support seat (11) and a working disk (12) fixedly connected to the support seat (11) at a side away from the ground, the clamping device (2) comprises a clamping assembly (21), the clamping assembly (21) comprises a fixing block (211) installed at a side of the workbench (1) away from the ground, a fixing block (211) fixedly connected to a side of the fixing block (211) away from the working disk (12), and a fixing block (211) fixedly connected to a side of the fixing block (211) away from the working disk (12). The working table (1) comprises a first screw rod (212) on the side, a positioning clamping block (213) slidably connected to the fixing block (211), and an adjusting nut (214) threadedly connected to the first screw rod (212) for fixing the position of the positioning clamping block (213), the positioning clamping block (213) being provided with a sliding groove (216) for the first screw rod (212) to pass through, the positioning clamping block (213) being located between the adjusting nut (214) and the fixing block (211), and the working table (1) being provided with a connecting hole for the detection gas to pass through, and the connecting hole being located on the working disk (12).

2. A boiler sootblower spring valve pressure bearing capacity detection device according to claim 1, characterized in that: A plurality of the clamping assemblies (21) are arranged at intervals in the circumferential direction around the center of the working disk (12).

3. The boiler sootblower spring valve pressure bearing capacity detection device according to claim 1, characterized in that: The detection device (3) comprises a pump body (31), an input pipe (32) installed on the pump body (31), a pipe joint (33) installed on the side of the working plate (12) close to the ground, a pressure measuring tube (34) installed on the pipe joint (33), and a pressure indicator (35) arranged at the other end of the pressure measuring tube (34), the input pipe (32) is connected to the pipe joint (33), and the pipe joint (33) is installed at the connecting hole.

4. The boiler sootblower spring valve pressure bearing capacity detection device according to claim 1, characterized in that: The abutting device (2) further comprises a mounting block mounted on a side of the workbench (1) away from the ground, a fixing assembly (22) for fixing a spring valve, a connecting member (23) for mounting the fixing assembly (22), and a driving member (24) arranged on the mounting block for driving the fixing assembly (22) to move.

5. The boiler sootblower spring valve pressure bearing capacity detection device according to claim 4, characterized in that: The connecting member (23) comprises a second screw rod (231) rotatably connected to a side of the mounting block away from the workbench (1) and a guide rod (232) fixedly connected to a side of the mounting block away from the workbench (1), wherein the guide rod (232) is shorter in vertical direction than the second screw rod (231).

6. The boiler sootblower spring valve pressure bearing capacity detection device according to claim 5, characterized in that: The fixing assembly (22) comprises an abutment block (221) threadedly connected to the second screw rod (231), a spring (222) arranged on a side of the abutment block (221) close to the mounting block, an abutment plate (223) fixedly connected to an end of the spring (222) away from the abutment block (221), and a clamping pad (224) fixedly connected to a side of the abutment plate (223) away from the spring (222); a mounting groove is provided on a side of the abutment block (221) close to the mounting block, the spring (222) is fixedly connected to the bottom of the mounting groove, the abutment plate (223) is slidably connected in the mounting groove, and limit blocks are fixedly connected to opposite side walls of the mounting groove.

7. The boiler sootblower spring valve pressure bearing capacity detection device according to claim 6, characterized in that: The driving member (24) comprises a motor (241) fixedly connected to the mounting block, a first bevel gear (242) fixedly connected to an output shaft of the motor (241), and a second bevel gear (243) fixedly connected to the second screw rod (231), wherein the first bevel gear (242) meshes with the second bevel gear (243).

8. The boiler sootblower spring valve pressure bearing capacity detection device according to claim 6, characterized in that: A pressure detector is provided on one side of the clamping pad (224) close to the mounting block.

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