Simple graphite equipment heat exchange block pressing and leakage testing device
By using a simple graphite heat exchanger block pressure testing and leak detection device, and utilizing steel clamps and synchronous adjustment components, leaks in the graphite heat exchanger block can be quickly detected. This solves the problem of easy damage to graphite equipment, reduces maintenance costs and time, and ensures the continuity of production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 青海盐湖镁业有限公司
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-21
AI Technical Summary
Graphite equipment is prone to scaling under long-term high-load operation, which can lead to equipment damage, high maintenance costs and production delays. The lack of professional tools also increases the risk of outsourcing transportation.
A simple pressure testing and leak detection device for graphite heat exchange blocks was designed, including a first steel clamp and a second steel clamp. The graphite heat exchange block is fixed by a double-headed screw, and rapid testing is performed using water injection and pressurization ports. A synchronous adjustment component driven by a servo motor is used to ensure sealing and stability.
It enables rapid detection of leaks in graphite heat exchange blocks, reduces maintenance difficulty and cost, speeds up equipment maintenance, and ensures production continuity.
Smart Images
Figure CN224151935U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of graphite equipment maintenance equipment, and in particular to a simple graphite equipment heat exchange block pressure testing and leak detection device. Background Technology
[0002] In industrial production, as production loads continue to rise, a series of graphite equipment, such as hydrogen chloride synthesis furnaces and falling film absorbers, have exposed numerous problems under long-term high-load operation. Due to prolonged operating time, coupled with deviations in process control or unsatisfactory heat exchange effects, graphite heat exchange blocks are prone to scaling, leading to excessive temperature differences in the graphite and ultimately causing equipment damage. Once this occurs, circulating water will cross-contaminate, not only affecting the quality of hydrochloric acid products, but more seriously, the acidic water will corrode the equipment, posing a significant hidden danger to production.
[0003] When equipment malfunctions, the processing plant lacks the specialized tools for pressure testing and leak detection of graphite heat exchangers, making it unable to conduct pressure tests independently. Forced by production demands, it has no choice but to outsource the equipment repair. However, graphite equipment is highly susceptible to damage during transportation and repair. This not only significantly increases repair costs but also severely delays the repair schedule, greatly impacting production continuity.
[0004] To effectively reduce the maintenance costs of graphite equipment such as hydrogen chloride synthesis furnaces and falling film absorbers, accelerate the inspection and maintenance process, and ensure normal production operation, this application proposes a simple pressure testing and leak testing device for graphite equipment heat exchange blocks, aiming to solve the aforementioned long-standing production problems. Utility Model Content
[0005] The purpose of this invention is to provide a simple pressure testing and leak testing device for graphite equipment heat exchange blocks, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution.
[0007] Some embodiments of this application provide a simple graphite equipment heat exchange block pressure testing and leak detection device, including a first steel clamp plate and a second steel clamp plate. Multiple sets of support frames are installed at the bottom end of the first steel clamp plate, and a drain valve is installed at the middle of the bottom end of the first steel clamp plate. A pressure gauge is installed at the middle of the top end of the second steel clamp plate. A water injection port and an exhaust port are respectively provided on both sides of the pressure gauge. A graphite heat exchange block is arranged between the first steel clamp plate and the second steel clamp plate. Multiple sets of through slots are equally spaced on the first steel clamp plate and the second steel clamp plate. A double-ended screw is arranged in each of the multiple sets of through slots. The upper and lower ends of the double-ended screw are threaded with locking nuts. A synchronous adjustment component is provided at the top end of the second steel clamp plate.
[0008] In one embodiment, the synchronization adjustment assembly includes a driven gear, a track, a gear ring, a guide rail groove, a drive assembly, a drive gear, and a limiting ring. Driven gears are mounted on the exterior of the locking nuts at the upper end of the double-ended screw. A track is mounted on the center of the top of the second steel clamping plate. A gear ring is provided on the exterior of the track. The inner ring of the gear ring has a guide rail groove corresponding to the track. Guide rail grooves are fixed on the exterior of the locking nuts at the upper end of the double-ended screw. Multiple sets of guide rail grooves mesh with the gear ring. The drive assembly is fixedly connected to the second steel clamping plate and is used to drive the drive gear. The drive gear and driven gear mesh with the gear ring respectively.
[0009] In one embodiment, the drive assembly includes a motor frame and a servo motor, the motor frame being mounted on the side of the second steel clamp, the servo motor being mounted on the motor frame, and the drive gear being mounted on the output end of the servo motor.
[0010] In one embodiment, a limiting ring is provided on the outside of the locking nut at the bottom end of the multiple sets of double-ended screws, and the limiting ring has a limiting hole corresponding to the locking nut at the bottom end of the double-ended screw.
[0011] In one embodiment, the input terminal of the servo motor is electrically connected to an external controller via a wire.
[0012] In one embodiment, the track is circular, and the outer side of the track fully fits the inside of the guide groove on the toothed ring.
[0013] In one embodiment, the width of the driven gear is smaller than the width of the gear ring.
[0014] In one embodiment, the water inlet can be connected to an external water inlet pipe.
[0015] In one embodiment, the exhaust port can be connected to an external pressure pump.
[0016] In one embodiment, rubber rings are provided on the outer walls of the opposite ends of the first and second steel clamps, and the two sets of rubber rings can fully contact the surface of the graphite heat exchange block.
[0017] Compared with the prior art, the present invention has at least the following beneficial effects:
[0018] I. This utility model, by installing a detachable second steel clamp on a first steel clamp, allows the graphite heat exchanger block to be quickly placed between the first and second steel clamps. Multiple sets of double-ended screws then secure the first and second steel clamps together. Water can be quickly injected and pressurized into the graphite heat exchanger block via the water injection port and exhaust port on the second steel clamp. This facilitates quick observation of leaks in the graphite heat exchanger block from its side and direct monitoring of internal pressure changes on a pressure gauge. This simplifies subsequent maintenance and repair, effectively reducing the difficulty of device maintenance and accelerating equipment upkeep.
[0019] II. This utility model features a rotatable toothed ring installed at the top of the second steel clamping plate, and guide rail grooves installed on the outside of the locking nuts at the top of multiple sets of double-ended screws. When it is necessary to rotate the locking nuts at the top of the double-ended screws to fix the graphite heat exchange block, a servo motor on the motor frame can be driven to rotate the drive gear clockwise. This allows the toothed ring on the outside of the track to rotate clockwise under the drive of the drive gear. Simultaneously, the guide rail grooves on the outside of the locking nuts at the top of the multiple sets of double-ended screws can also rotate clockwise, thereby allowing the second steel clamping plate to descend as a whole without the need to adjust each individual locking nut individually. This ensures the stability of the descent of the second steel clamping plate and allows the second steel clamping plate to form an effective seal on the top of the through groove. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the 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. Among them:
[0021] Figure 1 This is a three-dimensional structural diagram of a simple graphite equipment heat exchange block pressure testing and leak detection device according to an embodiment of the present invention.
[0022] Figure 2 for Figure 1 A schematic diagram of the partial active state structure of the pressure testing and leak testing device for the heat exchange block of the simplified graphite equipment shown.
[0023] Figure 3 for Figure 2 The diagram shows a bottom view of the pressure testing and leak detection device for the heat exchange block of the simplified graphite equipment.
[0024] Figure 4 for Figure 1 A magnified structural diagram of point A in the middle.
[0025] Explanation of reference numerals in the attached drawings: 1. First steel clamp plate; 2. Second steel clamp plate; 3. Support frame; 4. Drain valve; 5. Water inlet; 6. Exhaust pipe; 7. Pressure gauge; 8. Through groove; 9. Double-ended screw; 10. Locking nut; 11. Driven gear; 12. Rail; 13. Gear ring; 14. Guide rail groove; 15. Motor frame; 16. Servo motor; 17. Drive gear; 18. Graphite heat exchange block; 19. Rubber ring; 20. Limiting ring. Detailed Implementation
[0026] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0028] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0029] Figures 1 to 4 As shown, this embodiment provides a simple graphite equipment heat exchange block pressure testing and leak testing device, including a first steel clamp plate 1 and a second steel clamp plate 2. Four sets of support frames 3 are installed at the bottom end of the first steel clamp plate 1. A drain valve 4 is installed in the middle of the bottom end of the first steel clamp plate 1. A pressure gauge 7 is installed in the middle of the top end of the second steel clamp plate 2. A water injection port 5 and an exhaust port 6 are respectively provided on both sides of the pressure gauge 7. A graphite heat exchange block 18 is arranged between the first steel clamp plate 1 and the second steel clamp plate 2. Sixteen sets of through grooves 8 are equally spaced on the first steel clamp plate 1 and the second steel clamp plate 2. A double-headed screw 9 is installed in each of the sixteen sets of through grooves 8. The upper and lower ends of the double-headed screw 9 are threaded with locking nuts 10. A synchronous adjustment component is provided at the top end of the second steel clamp plate 2.
[0030] By installing a detachable second steel plate 2 on the first steel plate 1, the graphite heat exchange block 18 can be quickly placed between the first steel plate 1 and the second steel plate 2. The first steel plate 1 and the second steel plate 2 are then fixedly connected by sixteen sets of double-headed screws 9. Water can be quickly injected and pressurized into the graphite heat exchange block 18 through the water injection port 5 and the exhaust port 6 on the second steel plate 2. This makes it easy to quickly observe the location of the leak in the graphite heat exchange block 18 from the side and directly observe the pressure change inside the graphite heat exchange block 18 on the pressure gauge 7. This facilitates subsequent maintenance and repair, effectively reduces the difficulty of equipment maintenance, and speeds up the maintenance process.
[0031] In other embodiments, the synchronization adjustment assembly includes a driven gear 11, a track 12, a gear ring 13, a guide rail groove 14, a motor frame 15, a servo motor 16, a drive gear 17, and a limiting ring 20. Driven gears 11 are mounted on the outside of the locking nut 10 at the upper end of the double-ended screw 9. A track 12 is mounted on the middle of the top of the second steel clamp 2. A gear ring 13 is provided on the outside of the track 12. The inner ring of the gear ring 13 has a guide rail groove 14 corresponding to the track 12. The locking nut at the upper end of the double-ended screw 9... All of the 10 are fixed with guide rail grooves 14. Multiple guide rail grooves 14 mesh with toothed rings 13. A motor frame 15 is installed on the side of the second steel clamp 2. A servo motor 16 is installed on the motor frame 15. A drive gear 17 is installed on the output end of the servo motor 16. The drive gear 17 meshes with the toothed ring 13. A limit ring 20 is provided on the outside of the locking nut 10 at the bottom of the multiple double-ended screws 9. The limit ring 20 has a limit hole corresponding to the locking nut 10 at the bottom of the double-ended screw 9.
[0032] By installing a rotatable toothed ring 13 at the top of the second steel clamp plate 2, and installing guide rail grooves 14 on the outside of the locking nuts 10 at the top of the multiple sets of double-ended screws 9, when it is necessary to rotate the locking nuts 10 at the top of the double-ended screws 9 to fix the graphite heat exchange block 18, the servo motor 16 on the motor frame 15 can be driven to drive the drive gear 17 to rotate clockwise, so that the toothed ring 13 on the outside of the track 12 can rotate clockwise under the drive of the drive gear 17. At the same time as the toothed ring 13 rotates, the guide rail grooves 14 on the outside of the locking nuts 10 at the top of the multiple sets of double-ended screws 9 can also rotate clockwise synchronously, so that the second steel clamp plate 2 can be lowered as a whole without adjusting each individual locking nut 10, ensuring the stability of the descent of the second steel clamp plate 2, and allowing the second steel clamp plate 2 to form an effective seal on the top of the through groove 8.
[0033] In other embodiments, the water inlet 5 can be connected to an external water inlet pipe, and the exhaust outlet 6 can be connected to an external pressure pump. This design allows the external water inlet pipe to add water to the inside of the water inlet 5, and the external pressure pump to pressurize the inside of the exhaust outlet 6.
[0034] In other embodiments, the input terminal of the servo motor 16 is electrically connected to an external controller via a wire;
[0035] This design allows an external controller to control the start and stop of the servo motor 16 in real time, enabling the servo motor 16 to drive the drive gear 17 to rotate in the correct forward and reverse directions.
[0036] In other embodiments, rubber rings 19 are provided on the outer walls of opposite ends of the first steel plate 1 and the second steel plate 2, and the two sets of rubber rings 19 can fully contact the surface of the graphite heat exchange block 18. By providing rubber rings 19 on the outside of the first steel plate 1 and the second steel plate 2, the gap between the first steel plate 1 and the second steel plate 2 and the surface of the graphite heat exchange block 18 can be reduced, thereby ensuring the sealing performance of the first steel plate 1 and the second steel plate 2 during the inspection of the through groove 8.
[0037] In other embodiments, the track 12 is annular, and the outer side of the track 12 fully fits the inner side of the guide groove 14 on the toothed ring 13. With this design, when the servo motor 16 drives the drive gear 17 to rotate, the toothed ring 13 can rotate along the surface of the track 12 under the action of the drive gear 17, thereby ensuring the stability of the toothed ring 13 during rotation.
[0038] In other embodiments, the width of the driven gear 11 is smaller than the width of the gear ring 13. This design allows multiple sets of guide rail grooves 14 to rotate counterclockwise when the driven gear 11 rotates counterclockwise. These guide rail grooves 14 then rise along the double-ended screw 9 under the action of the thread. During the rise of the guide rail grooves 14, the gear ring 13 maintains engagement with the outside of the guide rail grooves 14, thereby reducing the downward pressure of the second steel clamp 2 on the graphite heat exchange block 18.
[0039] When using this simple graphite heat exchanger block pressure testing and leak detection device, the disassembled graphite heat exchanger block 18 can be placed on the first steel clamp 1, and then the second steel clamp 2 can be moved to the top of the graphite heat exchanger block 18. Next, sixteen sets of double-headed screws 9 are inserted into the through slots 8 on the first and second steel clamps 1 and 2, and the locking nuts 10 at both ends of the double-headed screws 9 are turned to effectively fix the top of the graphite heat exchanger block 18 to the second steel clamp 2. Then, the water injection port 5 and the vent port 6 are opened, allowing water to be injected into the graphite heat exchanger block 18 through the water injection port 5, and the graphite heat exchanger block is then emptied. Remove the internal air from the graphite heat exchange block 18, then close the water inlet 5 and open the exhaust outlet 6 to pressurize the inside of the exhaust outlet 6 with the external pressure pump. Observe the pressure index on the pressure gauge 7. When the pressure index reaches the specified value, close the exhaust outlet 6 and observe whether the index on the pressure gauge 7 changes. Also, observe whether there is liquid seepage from the side of the graphite heat exchange block 18. After finding the leak, mark it manually. Then, open the drain valve 4 at the bottom of the first steel clamp 1 to drain the water inside the graphite heat exchange block 18. Then, reverse the above operation to disassemble the graphite heat exchange block 18. The operation is now complete.
[0040] All electrical components mentioned in this manual are electrically connected to an external main controller and industrial power supply. The main controller can be a conventional known device such as a computer that provides control.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A simple graphite equipment heat exchange block pressing and leak testing device, characterized in that, The first steel clamp (1) and the second steel clamp (2) are included. Multiple sets of support frames (3) are installed at the bottom of the first steel clamp (1). A drain valve (4) is installed in the middle of the bottom of the first steel clamp (1). A pressure gauge (7) is installed in the middle of the top of the second steel clamp (2). A water inlet (5) and an exhaust outlet (6) are respectively provided on both sides of the pressure gauge (7). A graphite heat exchange block (18) is provided between the first steel clamp (1) and the second steel clamp (2). Multiple sets of through grooves (8) are opened at equal intervals on the first steel clamp (1) and the second steel clamp (2). A double-headed screw (9) is provided in each of the multiple sets of through grooves (8). A locking nut (10) is threaded to both the upper and lower ends of the double-headed screw (9). A synchronous adjustment component is provided at the top of the second steel clamp (2).
2. The simple graphite equipment heat exchange block pressing and leak testing device according to claim 1, characterized in that: The synchronous adjustment assembly includes a driven gear (11), a track (12), a gear ring (13), a guide groove (14), a drive assembly, a drive gear (17), and a limiting ring (20). The driven gear (11) is installed on the outside of the locking nut (10) at the upper end of the double-ended screw (9). The track (12) is installed in the middle of the top of the second steel clamp (2). The gear ring (13) is provided on the outside of the track (12). The inner ring of the gear ring (13) has a guide groove (14) corresponding to the track (12). The guide groove (14) is fixed on the outside of the locking nut (10) at the upper end of the double-ended screw (9). Multiple sets of the guide groove (14) mesh with the gear ring (13). The drive assembly is fixedly connected to the second steel clamp (2) and is used to drive the drive gear (17). The drive gear (17) and the driven gear (11) mesh with the gear ring (13) respectively.
3. The simple graphite equipment heat exchange block pressing and leak testing device according to claim 2, characterized in that: The drive assembly includes a motor frame (15) and a servo motor (16). The motor frame (15) is mounted on the side of the second steel clamp (2), the servo motor (16) is mounted on the motor frame (15), and the drive gear (17) is mounted on the output end of the servo motor (16).
4. The simple graphite equipment heat exchange block pressing and leak testing device according to claim 3, characterized in that: The input terminal of the servo motor (16) is electrically connected to an external controller via a wire.
5. The simple graphite equipment heat exchange block pressing and leak testing device according to claim 2, characterized in that: A limiting ring (20) is provided on the outside of the locking nut (10) at the bottom end of the multiple sets of double-ended screws (9), and the limiting ring (20) is provided with a limiting hole corresponding to the locking nut (10) at the bottom end of the double-ended screw (9).
6. The simple graphite equipment heat exchange block pressing and leak testing device according to claim 2, characterized in that: The track (12) is circular, and the outside of the track (12) is fully fitted with the inside of the guide groove (14) on the toothed ring (13).
7. The simple graphite equipment heat exchange block pressing and leak testing device according to claim 2, characterized in that: The width of the driven gear (11) is smaller than the width of the gear ring (13).
8. The simple graphite equipment heat exchange block pressing and leak testing device according to claim 1, characterized in that: The water inlet (5) is connected to an external water inlet pipe.
9. The simple graphite equipment heat exchange block pressing and leak testing device according to claim 1, characterized in that: The exhaust port (6) is connected to an external pressure pump.
10. The simple graphite equipment heat exchange block pressing and leak testing device according to claim 1, characterized in that: The outer walls of the first steel clamp (1) and the second steel clamp (2) are provided with rubber rings (19) at opposite ends, and the two sets of rubber rings (19) are in full contact with the surface of the graphite heat exchange block (18).