A device for detecting the sealing performance of a reaction vessel

By designing a reactor sealing performance testing device that combines a detachable sealing cover, a vacuum pump, and a pressure sensor, the problems of easy damage to the sealing structure and insufficient accuracy of traditional testing methods are solved, thus achieving rapid and accurate sealing performance testing.

CN224581094UActive Publication Date: 2026-07-31JIANGSU MINGMAO ENGINEERING EQUIPMENT CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU MINGMAO ENGINEERING EQUIPMENT CO LTD
Filing Date
2025-10-22
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing methods for testing the sealing performance of reactors are prone to damaging the sealing structure, are cumbersome to operate, are not suitable for moisture-sensitive equipment, and are difficult to accurately locate the leak.

Method used

A detection device comprising a detachable sealing cover one and a sealing cover two is designed. It utilizes a spring telescopic rod and a plug structure to achieve quick connection. Combined with a vacuum pump and a pressure sensor, it monitors the pressure changes inside the sealing cover in real time and accurately locates the leak point.

Benefits of technology

It simplifies the detection process, improves the accuracy and efficiency of leak detection and location, reduces equipment downtime, and is suitable for moisture-sensitive reactors.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224581094U_ABST
    Figure CN224581094U_ABST
Patent Text Reader

Abstract

This utility model discloses a reactor sealing performance testing device, relating to the field of reactor equipment sealing performance testing technology. It includes: a reactor body, a top cover mounted on the top of the reactor body, and a sealing cover body detachably mounted on the outer periphery of the top cover. The sealing cover body includes a first sealing cover and a second sealing cover, which are detachably connected. A limiting groove is formed in the middle of the connection between the first and second sealing covers, and spring telescopic rods are symmetrically installed on the inner wall of the limiting groove. The first and second sealing covers are connected by a quick-connect structure using an insert block and a limiting block combined with spring telescopic rods. Combined with a sliding adjustment design of a lever and a sliding groove, operators can disassemble and assemble the sealing cover body without the need for complex tools. Compared to the cumbersome process of traditional water pressure testing ("liquid injection-pressure holding-drying"), this significantly simplifies the testing operation steps.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of reactor equipment sealing test technology, and more specifically, to a reactor sealing test device. Background Technology

[0002] As a core piece of equipment in the production processes of industries such as chemical, pharmaceutical, and food, reaction vessels often undergo chemical reactions or material mixing processes involving high temperature, high pressure, and corrosive media. The sealing performance of the reaction vessel directly determines production safety, product quality stability, and production efficiency. If the sealing performance fails, it may not only lead to safety accidents caused by leakage of reaction raw materials (such as fires caused by leakage of flammable media or health hazards to operators caused by leakage of toxic media), but also affect product purity due to imbalance in material ratios, resulting in raw material waste and increased production costs. Therefore, reaction vessel sealing performance testing is a key aspect of equipment installation, inspection, and daily maintenance.

[0003] Existing technologies for testing the sealing performance of reactors mainly employ traditional methods such as hydrostatic testing, pneumatic pressure holding testing, or soapy water leak detection. Hydrostatic testing, which involves injecting high-pressure water into the reactor and observing pressure changes, can provide a direct assessment of leaks. However, for non-pressure-resistant critical sealing areas such as the connection between the top cover and the reactor body, excessive test pressure can easily damage the sealing structure. Furthermore, the reactor interior requires drying after the test, making the process cumbersome and time-consuming, and particularly unsuitable for reactor equipment sensitive to moisture.

[0004] To address the aforementioned issues, a device for detecting the sealing performance of a reaction vessel is proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, a device for detecting the sealing performance of a reaction vessel is provided.

[0006] To achieve the above objectives, the present invention can be implemented using the following technical solutions: This utility model provides a reactor sealing performance testing device, comprising: a reactor body, a top cover installed on the top of the reactor body, a sealing cover body detachably installed on the outer periphery of the top cover, the sealing cover body including a sealing cover one and a sealing cover two, the sealing cover one and the sealing cover two being detachably connected, a limiting groove being formed in the middle of the connection between the sealing cover one and the sealing cover two, spring telescopic rods being symmetrically installed on the inner wall of the limiting groove, a common insert being fixedly installed at the end of the spring telescopic rod away from the inner wall of the limiting groove, a sliding groove being formed on the top of the sealing cover one, a lever being slidably connected inside the sliding groove, the bottom of the lever being fixedly connected to the top of the insert, a limiting block being fixedly installed in the middle of the side of the sealing cover two near the sealing cover one, the limiting block having an installation groove, and the insert fitting the size of the installation groove.

[0007] Preferably, the sealing cover one has symmetrical slots on the side near the sealing cover two, and the sealing cover two has symmetrical rubber protrusions on the side near the sealing cover one, with the slots matching the size of the rubber protrusions.

[0008] Preferably, a vacuum tube is fixedly installed on the top of the second sealing cover, and a vacuum pressure gauge is fixedly installed on the top of the second sealing cover.

[0009] Preferably, multiple pressure sensors are fixedly installed on the inner walls of the first and second sealing covers.

[0010] Preferably, a retaining strip is fixedly installed at the bottom of the first sealing cover and the second sealing cover. A plurality of evenly distributed magnetic strips are installed on the surface of the retaining strip. Sealing strips are adhered at the connection between the first sealing cover and the second sealing cover. The retaining strip is installed to the bottom of the top cover through the magnetic strips.

[0011] In summary, the features and advantages of the reaction vessel sealing detection device of this utility model are as follows: This device consists of two detachable sealing covers, one and two, forming the main sealing cover. It is specifically designed for independent sealing detection at the connection between the reactor top cover and the reactor body, solving the problem that traditional detection devices cannot perform specialized testing on the top cover, a frequently disassembled and easily failed sealing part. At the same time, the pressure sensors evenly distributed on the inner walls of the sealing covers can collect pressure change data in different areas inside the covers in real time. When a minor leak occurs in the reactor top cover, the leak point can be accurately located by the pressure difference between different sensors. Compared with the shortcomings of traditional gas pressure holding tests (which only know the leak but not the location) and soap water leak detection (which relies on experience and has low sensitivity), this device significantly improves the accuracy and efficiency of leak detection, providing clear guidance for subsequent maintenance and reducing equipment downtime for maintenance.

[0012] The sealing cover one and sealing cover two are connected by a quick-connect structure of "insertion block-limiting block" and spring telescopic rod, and with the sliding adjustment design of the dial plate and slide groove, the operator can disassemble and assemble the sealing cover body without the need for complicated tools. Compared with the cumbersome process of "liquid injection-pressure holding-drying" in traditional water pressure testing, the testing operation steps are significantly simplified. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the vacuum tube shown in this utility model; Figure 3 This is a schematic diagram of the limiting block shown in this utility model; Figure 4This is a schematic diagram of the card slot shown in this utility model; The reference numerals in the accompanying drawings of this utility model are as follows: 1. Reactor body; 2. Top cover; 3. Sealing cover one; 4. Vacuum tube; 5. Vacuum pressure gauge; 6. Sealing cover two; 7. Paddle plate; 8. Slide groove; 9. Magnetic suction piece; 10. Limiting block; 11. Pressure sensor; 12. Rubber protrusion; 13. Slot; 14. Locking strip; 15. Limiting groove; 16. Insert block; 17. Spring telescopic rod. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0015] See Figures 1-4 The following is a detailed description of an embodiment of the present invention, which provides a reactor sealing performance testing device: A device for detecting the sealing performance of a reaction vessel, such as Figures 1-4As shown, it includes: a reactor body 1, a top cover 2 installed on the top of the reactor body 1, a sealing cover body detachably installed on the outer periphery of the top cover 2, the sealing cover body including a first sealing cover 3 and a second sealing cover 6, the first sealing cover 3 and the second sealing cover 6 being detachably connected, a limiting groove 15 being formed in the middle of the connection between the first sealing cover 3 and the second sealing cover 6, spring telescopic rods 17 being symmetrically installed on the inner wall of the limiting groove 15, and a common insert block 16 being fixedly installed on the end of the spring telescopic rod 17 away from the inner wall of the limiting groove 15. A groove 8 is provided at the top of the first sealing cover 3. A lever 7 is slidably connected inside the groove 8. The bottom of the lever 7 is fixedly connected to the top of the insert block 16. A limiting block 10 is fixedly installed in the middle of the side of the second sealing cover 6 near the first sealing cover 3. The limiting block 10 has an installation groove. The insert block 16 matches the size of the installation groove. The limiting block 10 on the second sealing cover 6 will gradually extend into the limiting groove 15 of the first sealing cover 3. When the limiting block 10 contacts the insert block 16, the insert block 16 moves into the limiting groove 15, simultaneously compressing the springs on both sides. Spring telescopic rod 17; (Spring telescopic rod 17 consists of two round rods with different radii and a return spring, which can realize the extension and retraction of the round rods). When the mounting groove of the limiting block 10 is aligned with the insert block 16, the spring telescopic rod 17 releases its elastic force, pushing the insert block 16 into the mounting groove, completing the quick locking of sealing cover one 3 and sealing cover two 6, forming a sealing cover body covering the connection between the top cover 2 and the reactor body 1. The retaining strips 14 at the bottom of sealing cover one 3 and sealing cover two 6 are attracted to the top by the magnetic strips 9 on the surface. At the bottom of cover 2, the fit between the sealing cover body and the top cover 2 is further enhanced. After the test is completed, the operator pushes the lever 7 along the sliding groove 8 at the top of the sealing cover 13. The lever 7 drives the bottom insert block 16 to move into the limiting groove 15 and disengage from the mounting groove of the limiting block 10. Then, the sealing cover 13 and the sealing cover 26 are separated, so that the rubber protrusion 12 is dislodged from the slot 13. Then, by breaking the magnetic suction plate 9 and the top cover 2, the sealing cover 13 and the sealing cover 26 are removed, completing the disassembly of the device and the reset of the reactor.

[0016] Furthermore, such as Figures 1-4 As shown, the sealing cover 3 has symmetrical slots 13 on the side near the sealing cover 6, and the sealing cover 6 has symmetrical rubber protrusions 12 on the side near the sealing cover 3. The slots 13 and the rubber protrusions 12 are matched in size. The operator attaches the sealing cover 3 and the sealing cover 6 to the outer sides of the top cover 2 respectively, and pushes the sealing cover 3 and the sealing cover 6 closer to each other. At this time, the rubber protrusions 12 on the side of the sealing cover 6 will be embedded in the corresponding slots 13 of the sealing cover 3, thus initially achieving the positioning and pre-sealing of the two sealing covers.

[0017] Furthermore, a vacuum tube 4 is fixedly installed on the top of the second sealing cover 6, a vacuum pressure gauge 5 is fixedly installed on the top of the second sealing cover 6, multiple evenly distributed pressure sensors 11 are fixedly installed on the inner walls of the first sealing cover 3 and the second sealing cover 6, a retaining strip 14 is fixedly installed on the bottom of the first sealing cover 3 and the second sealing cover 6, and multiple evenly distributed magnetic absorbing plates 9 are installed on the surface of the retaining strip 14. Sealing strips are glued to the connection between the first sealing cover 3 and the second sealing cover 6. The retaining strip 14 is installed to the bottom of the top cover 2 through the magnetic absorbing plates 9. An external vacuum pump is connected through the vacuum tube 4 on the top of the second sealing cover 6. After the vacuum pump is started, the air inside the sealing cover body will be extracted through the vacuum tube 4, gradually forming a negative pressure environment. The operator monitors the vacuum degree inside the sealing cover body in real time through the vacuum pressure gauge 5 on the top of the second sealing cover 6. When the value displayed by the vacuum pressure gauge 5 reaches the preset detection pressure, the valves of the vacuum pump and the vacuum tube 4 are closed to keep the sealing cover body in a sealed negative pressure state. The pressure sensors 11 are evenly distributed on the inner walls of the first sealing cover 3 and the second sealing cover 6. The system will collect pressure data at its location in real time and transmit the data to the external control system. If the connection between the reactor top cover 2 and the reactor body 1 is well sealed, the negative pressure inside the sealing cover will remain stable. The values ​​of the vacuum pressure gauge 5 and the pressure values ​​collected by each pressure sensor 11 will not change significantly within a preset time (e.g., 30 minutes). If there is a leak at the connection, external air will enter the sealing cover through the leak, causing the internal negative pressure to rise. At this time, the vacuum pressure gauge 5 will show an increase in value, and the pressure sensor 11 near the leak will detect the pressure change first. The control system can accurately locate the leak by comparing the timing and value differences of the pressure changes of different pressure sensors 11.

[0018] Specifically, the operator first attaches sealing cover 3 and sealing cover 6 to the outer sides of the top cover 2, respectively, and pushes sealing cover 3 and sealing cover 6 closer together. At this time, the rubber protrusion 12 on the side of sealing cover 6 will be embedded in the corresponding slot 13 of sealing cover 3, initially achieving the positioning and pre-sealing of the two sealing covers. At the same time, the limiting block 10 of sealing cover 6 will gradually extend into the limiting groove 15 of sealing cover 3. When the limiting block 10 contacts the insert 16, it will squeeze the insert 16 to move into the limiting groove 15, simultaneously compressing the spring telescopic rods 17 on both sides. (The spring telescopic rod 17 consists of two round rods with different radii and a return spring, which can realize the extension and retraction of the round rods.) When the mounting groove of the limiting block 10 is aligned with the insert 16, the spring telescopic rod 17 releases its elastic force, pushing the insert 16 into the mounting groove, completing the rapid locking of sealing cover 3 and sealing cover 6, forming a package. The sealing cover body at the connection between the top cover 2 and the reactor body 1, and the bottom clips 14 of sealing cover 1 and sealing cover 2 6 are attached to the bottom of the top cover 2 by magnetic strips 9 on the surface, further enhancing the fit between the sealing cover body and the top cover 2. At the same time, the sealing strip at the connection between the two sealing covers can fill the gaps and prevent external air from entering and affecting the detection accuracy. An external vacuum pump is connected through the vacuum tube 4 at the top of sealing cover 2 6. After the vacuum pump is started, the air inside the sealing cover body will be extracted through the vacuum tube 4, gradually forming a negative pressure environment. The operator monitors the vacuum degree inside the sealing cover body in real time through the vacuum pressure gauge 5 at the top of sealing cover 2 6. When the value displayed by the vacuum pressure gauge 5 reaches the preset detection pressure, the valves of the vacuum pump and vacuum tube 4 are closed to keep the sealing cover body in a closed negative pressure state. Pressure sensors 11 are evenly distributed on the inner walls of sealing cover 1 3 and sealing cover 2 6. The system will collect pressure data at its location in real time and transmit the data to the external control system. If the connection between the reactor top cover 2 and the reactor body 1 is well sealed, the negative pressure inside the sealing cover will remain stable, and the values ​​of the vacuum pressure gauge 5 and the pressure values ​​collected by each pressure sensor 11 will not change significantly within a preset time (e.g., 30 minutes). If there is a leak at the connection, external air will enter the sealing cover through the leak, causing the internal negative pressure to rise. At this time, the vacuum pressure gauge 5 will show an increase in value, and the pressure sensor 11 near the leak will detect the leak first. Upon detecting a pressure change, the control system can accurately locate the leak point by comparing the timing and numerical differences of pressure changes from different pressure sensors 11. After the detection is completed, the operator pushes the lever 7 along the sliding groove 8 at the top of the sealing cover 3. The lever 7 drives the bottom insert 16 to move into the limiting groove 15, disengaging it from the mounting groove of the limiting block 10. Then, the sealing cover 3 and the sealing cover 6 are separated, allowing the rubber protrusion 12 to disengage from the slot 13. The magnetic suction plate 9 is then disconnected from the top cover 2, and the sealing cover 3 and the sealing cover 6 are removed, completing the disassembly of the device and the resetting of the reactor.

[0019] The above description is merely an embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A reactor vessel tightness detection device characterized by comprising: include: The reactor body (1) has a top cover (2) installed on its top. A sealing cover body is detachably installed on the outer periphery of the top cover (2). The sealing cover body includes a first sealing cover (3) and a second sealing cover (6). The first sealing cover (3) and the second sealing cover (6) are detachably connected. A limiting groove (15) is opened in the middle of the connection between the first sealing cover (3) and the second sealing cover (6). Spring telescopic rods (17) are symmetrically installed on the inner wall of the limiting groove (15). 7) The same insert (16) is fixedly installed at one end away from the inner wall of the limiting groove (15). The top of the sealing cover one (3) is provided with a sliding groove (8). A lever (7) is slidably connected inside the sliding groove (8). The bottom of the lever (7) is fixedly connected to the top of the insert (16). A limiting block (10) is fixedly installed in the middle of the side of the sealing cover two (6) near the sealing cover one (3). The limiting block (10) is provided with an installation groove. The insert (16) matches the size of the installation groove.

2. The device for detecting the sealing property of a reaction kettle according to claim 1, wherein The sealing cover one (3) has a symmetrical slot (13) on the side near the sealing cover two (6), and the sealing cover two (6) has a symmetrical rubber protrusion (12) on the side near the sealing cover one (3). The slot (13) matches the size of the rubber protrusion (12).

3. The device for detecting the sealing property of a reactor according to claim 2, wherein A vacuum tube (4) is fixedly installed on the top of the second sealing cover (6), and a vacuum pressure gauge (5) is fixedly installed on the top of the second sealing cover (6).

4. The device for detecting the sealing property of a reaction vessel according to claim 3, wherein Multiple pressure sensors (11) are fixedly installed on the inner walls of the first sealing cover (3) and the second sealing cover (6).

5. The device for detecting the sealing property of a reactor according to claim 4, wherein The bottom of the first sealing cover (3) and the second sealing cover (6) are fixedly installed with a clip (14). The surface of the clip (14) is equipped with a plurality of evenly distributed magnetic pieces (9). The connection between the first sealing cover (3) and the second sealing cover (6) is bonded with a sealing strip. The clip (14) is installed to the bottom of the top cover (2) through the magnetic pieces (9).