A valve inner leakage water detection device and a manual valve with sealing structure

Abstract

The application belongs to the technical field of valves, and particularly relates to a valve internal leakage water detection device and a manual valve with a sealing structure. In view of the fact that fluid moisture may be left in the leakage detection section, and the internal residual fluid moisture is difficult to be quickly treated during detection, the detection data may be deviated or the detection may be failed during leakage detection, the following scheme is proposed, which comprises: a detection pipe section, a detection sensor body is arranged on the detection pipe section; a leakage detection unit, the leakage detection unit is arranged on the detection pipe section. The valve internal leakage water detection device and the manual valve with the sealing structure have the effects of improving the valve leakage detection accuracy and reliability. When the leakage in the valve is detected, the device can heat the detection pipe section where the detection sensor body is located, so that the residual moisture in the detection pipe section is gasified, thereby eliminating the interference on the leakage detection sensor body and increasing the use effect of the device.

Description

Technical Field

[0001] This invention relates to the field of valve technology, and in particular to a valve internal leakage detection device and a manual valve with a sealing structure. Background Technology

[0002] A manual valve is a type of valve that relies on human power to drive an operating mechanism (such as a handwheel, handle, or lever) to change the position of the valve core, thereby controlling the flow or interruption of fluid in a pipeline. It does not require an external power source, has a simple structure, and high reliability. It is the most basic type of valve in industrial and civil fluid systems. Operators rotate or pull the handle to move the valve stem and valve core, causing the sealing surfaces between the valve core and the valve seat to contact or separate, thus achieving opening, closing, or throttling regulation.

[0003] As a key control component of fluid pipeline systems, valves often suffer from internal leakage due to seal failure. This leakage is often difficult to detect and can easily lead to energy waste, equipment damage, or even safety accidents. To address this issue, valve internal leakage detection devices based on intelligent sensors have emerged to enable real-time perception of the valve's internal status.

[0004] Existing valves use flow sensors for leak detection. However, when detecting whether a valve is leaking, there may be residual fluid moisture in the leak detection section. Moreover, it is difficult to quickly remove the residual fluid moisture during detection. Therefore, leak detection may cause deviations or errors in the detection data, affecting the valve's leak detection effect. Summary of the Invention

[0005] This invention discloses a valve internal leakage detection device, which aims to solve the technical problem in the prior art that the leakage detection section may have residual fluid moisture, and the residual fluid moisture inside is difficult to process quickly during detection, which may cause deviations or errors in the detection data.

[0006] The present invention provides a valve internal leakage detection device, comprising:

[0007] The detection pipe section is equipped with a detection sensor body;

[0008] A leak detection unit is installed on the detection pipe section. The leak detection unit includes two heating frames and multiple heating rods, with the multiple heating rods located inside the two heating frames respectively.

[0009] An outer cover plate is installed on the detection pipe section. The outer cover plate and the detection pipe section have multiple interconnected locking holes, and each locking hole is equipped with a fixing bolt.

[0010] In a preferred embodiment, the leakage detection unit further includes:

[0011] Two closed annular grooves are provided on the detection tube section, and two heating chambers are also provided on the detection tube section, with two heating frames respectively disposed inside the two heating chambers;

[0012] Multiple interconnected heat holes are respectively opened inside two closed annular grooves, and the multiple interconnected heat holes are respectively connected to the interior of two heating cavities.

[0013] In a preferred embodiment, the leakage detection unit further includes:

[0014] Two reciprocating ports are provided on the detection tube section. The two reciprocating ports are respectively connected to the interior of two heating chambers. The interior of the two heating chambers is also provided with a connecting port.

[0015] A dual-axis reciprocating motor is installed on the detection tube section. The two output shafts of the dual-axis reciprocating motor are connected to drive gears via couplings, and the two drive gears pass through two connecting ports respectively.

[0016] In a preferred embodiment, the leakage detection unit further includes:

[0017] Two passive gear rings are respectively disposed on two heating frames, and the two passive gear rings mesh with two driving gears respectively;

[0018] Two heating rings are respectively set on two heating frames, and multiple heating rods are respectively set on the two heating rings. Heating lines are also set on the two heating rings, and the two heating lines pass through two reciprocating movable ports respectively.

[0019] In a preferred embodiment, the leakage detection unit further includes:

[0020] Two heating elements are provided, both of which are mounted on the detection tube section, and one end of each of the two heating lines is mounted on the two heating elements respectively;

[0021] Multiple mounting cavities are provided on the detection pipe section. Each mounting cavity is connected to two closed ring grooves. The interior of each closed ring groove is provided with a closed ring plate, and each closed ring plate has two ring plate grooves.

[0022] Multiple reset spring rods are respectively disposed inside two closed ring grooves, and one end of each of the multiple reset spring rods is respectively disposed on two closed ring plates;

[0023] Multiple annular groove sealing rings are respectively disposed inside multiple annular plate grooves, and the outer walls of the multiple annular groove sealing rings are in contact with the inner walls of two closed annular grooves.

[0024] In a preferred embodiment, the leakage detection unit further includes:

[0025] Multiple mounting brackets are respectively disposed inside multiple mounting cavities. Each of the multiple mounting brackets is provided with a shaft member. Each of the multiple shaft members is provided with an adjusting roller. Each of the multiple adjusting rollers is provided with a connecting wire harness. One end of each of the multiple connecting wire harnesses is respectively disposed on two closed ring plates.

[0026] Multiple stepper motors are respectively mounted on multiple mounting brackets, and the output shafts of the multiple stepper motors are respectively connected to one end of multiple shaft members through couplings;

[0027] Multiple guide wheel frames are respectively disposed inside multiple mounting cavities, and each of the multiple guide wheel frames is provided with a guide wheel component. The outer walls of multiple connecting wire harnesses are in contact with the inner walls of the multiple guide wheel components.

[0028] A manual valve with a sealing structure, including the valve internal leakage detection device as described in any of the above, further comprising:

[0029] The valve body has an inlet valve pipe and a working valve pipe located on one side of the detection pipe section.

[0030] A valve body handle is provided on the valve body body, and a valve body cavity is provided on the valve body body, with a valve core mechanism provided inside the valve body cavity;

[0031] A leakage sealing module is installed on the valve body and includes multiple expansion agent tanks and receiving control components.

[0032] In a preferred embodiment, the leak sealing module further includes:

[0033] An annular support is provided inside the valve body cavity, and a mounting ring is provided on the annular support. Multiple expansion agent tanks are all mounted on the mounting ring.

[0034] A drive gear ring is mounted on a mounting ring frame.

[0035] A sensing harness is disposed on the detection sensor body, and one end of the sensing harness is disposed on the receiving control component.

[0036] In a preferred embodiment, the leak sealing module further includes:

[0037] An outer ring frame is provided on the valve body, and a receiving control component is provided on the outer ring frame. A central circular plate is also provided on the receiving control component. The valve core mechanism and the valve body have multiple through holes.

[0038] Multiple sealing gaskets are disposed inside multiple through holes;

[0039] An electric telescopic rod is mounted on a central circular plate. The output end of the electric telescopic rod is equipped with a lifting frame, and the lifting frame is equipped with multiple lifting spikes. The outer walls of the multiple lifting spikes are in contact with the inner walls of multiple sealing gaskets.

[0040] In a preferred embodiment, the leak sealing module further includes:

[0041] A servo motor is mounted on the valve body. The output shaft of the servo motor is connected to a gear component via a coupling. The gear component meshes with a drive gear ring.

[0042] Two control harnesses are provided, both of which are mounted on the receiving control unit. One end of each of the two control harnesses is respectively mounted on the servo motor and the electric telescopic rod.

[0043] As can be seen from the above, the valve internal leakage detection device provided by the present invention has the function of improving the accuracy and reliability of valve leakage detection. When performing internal leakage detection of valves, the device can heat the detection tube section where the detection sensor body is located to vaporize the residual moisture in the detection tube section, thereby eliminating interference to the leakage detection sensor body and increasing the effectiveness of the device. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the leakage detection unit structure of a valve internal leakage detection device proposed in this invention;

[0045] Figure 2 This is a cross-sectional view of the detection pipe section of a valve internal leakage detection device proposed in this invention;

[0046] Figure 3 This is a schematic diagram of the disassembled structure of the closed ring plate and the ring groove sealing ring of the valve internal leakage detection device proposed in this invention;

[0047] Figure 4 This is a schematic diagram of the combined structure of the adjusting roller and connecting wire harness of the valve internal leakage detection device proposed in this invention;

[0048] Figure 5 This is a schematic diagram of the disassembled structure of the heating ring and heating frame of a valve internal leakage detection device proposed in this invention;

[0049] Figure 6 This is a schematic diagram of the overall structure of a manual valve with a sealing structure proposed in this invention;

[0050] Figure 7This is a cross-sectional view of the valve body of a manual valve with a sealing structure proposed in this invention.

[0051] Figure 8 This is a schematic diagram of a leakage sealing module for a manual valve with a sealing structure proposed in this invention.

[0052] Figure 9 This is a schematic diagram of the combined structure of a ring support and an expansion agent tank for a manual valve with a sealing structure proposed in this invention.

[0053] Figure 10 This is a schematic diagram of the lifting frame and lifting spike combination structure of a manual valve with a sealing structure proposed in this invention.

[0054] In the diagram: 1. Inlet valve pipe; 2. Valve body; 3. Working valve pipe; 4. Detection pipe section; 5. Detection sensor body; 6. Valve handle; 7. Valve cavity; 8. Leakage sealing module; 801. Sensor harness; 802. Receiver control unit; 803. Control harness; 804. Servo motor; 805. Gear; 806. Expansion agent tank; 807. Outer ring frame; 808. Ring bracket; 809. Mounting ring frame; 810. Drive gear ring; 811. Sealing gasket ring; 812. Lifting frame; 813. Electric telescopic rod; 814. Central circular plate; 815. Lifting spike; 9. Leakage detection unit; 901. Heating element; 902. Drive gear; 9 03. Dual-axis reciprocating motor; 904. External cover plate; 905. Fixing bolt; 906. Locking hole; 907. Reciprocating movable port; 908. Mounting cavity; 909. Connecting heat hole; 910. Heating cavity; 911. Closing ring groove; 912. Closing ring plate; 913. Ring plate groove; 914. Passive gear ring; 915. Heating frame; 916. Ring groove sealing ring; 917. Adjusting roller; 918. Stepper motor; 919. Connecting wire harness; 920. Guide wheel component; 921. Guide wheel frame; 922. Shaft component; 923. Mounting bracket; 924. Heating ring; 925. Heating rod; 926. Heating circuit; 927. Return spring rod; 10. Valve core mechanism. Detailed Implementation

[0055] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0056] The valve internal leakage detection device disclosed in this invention is mainly used in scenarios where there may be residual fluid moisture in the leakage detection section, and the residual fluid moisture inside is difficult to process quickly during detection, which may cause deviation in detection data or detection errors during leakage detection.

[0057] Reference Figures 1-5 A valve internal leakage detection device, comprising:

[0058] The detection tube section 4 is equipped with a detection sensor body 5.

[0059] Leakage detection unit 9 is installed on detection pipe section 4. Leakage detection unit 9 includes two heating frames 915 and multiple heating rods 925. The multiple heating rods 925 are respectively located inside the two heating frames 915.

[0060] An outer cover plate 904 is provided on the detection tube section 4. The outer cover plate 904 and the detection tube section 4 have multiple interconnected locking holes 906, and each of the multiple locking holes 906 is provided with a fixing bolt 905.

[0061] Reference Figures 1-5 In a preferred embodiment, the leakage detection unit 9 further includes:

[0062] Two closed annular grooves 911 are provided on the detection tube section 4. Two heating chambers 910 are also provided on the detection tube section 4. Two heating frames 915 are respectively provided inside the two heating chambers 910.

[0063] Multiple interconnected heat holes 909 are respectively opened inside the two closed annular grooves 911, and the multiple interconnected heat holes 909 are respectively connected to the interior of the two heating cavities 910.

[0064] In this invention, the leakage detection unit 9 further includes:

[0065] Two reciprocating ports 907 are provided on the detection tube section 4. The two reciprocating ports 907 are connected to the interior of the two heating chambers 910 respectively. The interior of the two heating chambers 910 is also provided with a connecting port.

[0066] A dual-axis reciprocating motor 903 is installed on the detection tube section 4. Both output shafts of the dual-axis reciprocating motor 903 are connected to drive gears 902 via couplings. The two drive gears 902 pass through two connecting ports respectively.

[0067] In this invention, the leakage detection unit 9 further includes:

[0068] Two passive gear rings 914 are respectively disposed on two heating frames 915, and the two passive gear rings 914 mesh with two driving gears 902 respectively;

[0069] Two heating rings 924 are respectively set on two heating frames 915, and multiple heating rods 925 are respectively set on the two heating rings 924. Heating lines 926 are also set on the two heating rings 924, and the two heating lines 926 pass through two reciprocating movable ports 907 respectively.

[0070] In this invention, the leakage detection unit 9 further includes:

[0071] Two heating elements 901 are installed on the detection tube section 4, and one end of each of the two heating lines 926 is installed on the two heating elements 901 respectively.

[0072] Multiple mounting cavities 908 are provided on the detection tube section 4. The multiple mounting cavities 908 are respectively connected to two closed ring grooves 911. Each of the two closed ring grooves 911 is provided with a closed ring plate 912. Each of the two closed ring plates 912 has two ring plate grooves 913.

[0073] Multiple reset spring rods 927 are respectively disposed inside two closed annular grooves 911, and one end of each of the multiple reset spring rods 927 is respectively disposed on two closed annular plates 912;

[0074] Multiple annular groove sealing rings 916 are respectively disposed inside multiple annular plate grooves 913, and the outer walls of the multiple annular groove sealing rings 916 are respectively in contact with the inner walls of two closed annular grooves 911.

[0075] In this invention, the leakage detection unit 9 further includes:

[0076] Multiple mounting brackets 923 are respectively disposed inside multiple mounting cavities 908. Each mounting bracket 923 is provided with a shaft member 922. Each shaft member 922 is provided with an adjusting roller 917. Each adjusting roller 917 is provided with a connecting wire harness 919. One end of each connecting wire harness 919 is respectively disposed on two closed ring plates 912.

[0077] Multiple stepper motors 918 are respectively mounted on multiple mounting brackets 923, and the output shafts of the multiple stepper motors 918 are respectively connected to one end of multiple shaft members 922 through couplings;

[0078] Multiple guide wheel frames 921 are respectively disposed inside multiple mounting cavities 908. Each guide wheel frame 921 is provided with a guide wheel component 920. The outer wall of multiple connecting wire harnesses 919 is in contact with the inner wall of the multiple guide wheel components 920.

[0079] Specifically, during leak detection, the stepper motor 918 operates, driving the shaft 922 and the adjusting roller 917 to rotate. This causes the adjusting roller 917 to tighten the connecting harness 919, which in turn moves the closing ring plate 912 within the closing ring groove 911. This causes the return spring 927 to deform and compress. As the closing ring plate 912 moves, the heating chamber 910 connects to the internal space of the detection tube section 4 through the connecting heat hole 909. At this time, the heating element 901 and the dual-axis reciprocating motor 903 operate. The heating element 901 is connected to the heating ring 924 via the heating circuit 926, and further heats multiple heating rods 925 through the heating ring 924. Heating is performed so that heat passes through the connecting hot hole 909 to heat the inside of the detection tube section 4 to remove residual fluid moisture in the tube section. At the same time, the dual-axis reciprocating motor 903 can drive the drive gear 902 to rotate. Since the drive gear 902 meshes with the driven gear ring 914, it can drive the driven gear ring 914, heating frame 915, heating ring 924 and heating rod 925 to move, thereby increasing the heating area and improving the effect of the device until the detection tube section 4 is dried. The detection is completed by the detection sensor body 5. After the detection, the device is reset. The closed ring plate 912 can also be reset by the reset spring rod 927 to separate the heating cavity 910 and the inner space of the detection tube section 4.

[0080] During component maintenance, the outer cover 904 can be removed by unscrewing the fixing bolts 905, making it easier for staff to perform maintenance and other operations on the equipment. After the operation, the outer cover 904 can also be installed by unscrewing the fixing bolts 905 to provide protection for the component.

[0081] In specific application scenarios, the leakage detection unit 9 is suitable for the leakage detection of manual valves. When the leakage detection unit 9 performs leakage detection in the valve, it can heat the detection tube section 4 where the detection sensor body 5 is located through the cooperation of the heating element 901, heating ring 924, heating rod 925 and heating frame 915, so that the residual water in the detection tube section 4 is vaporized, thereby eliminating interference to the leakage detection sensor body 5 and improving the accuracy and reliability of leakage detection.

[0082] It should be noted that during heating, the heating frame 915 can perform reciprocating circular motion, so that the heating rod 925 can evenly transfer heat to the entire inner surface. Moreover, the motion heating can disperse the heat, ensuring the overall drying temperature while avoiding local temperature rise exceeding the standard, thus protecting the sensitive components inside the pipeline and valve.

[0083] In traditional leak detection, if there is a tiny leak on the sealing surface after the valve is closed, the residual water film may temporarily block the leak channel due to surface tension, causing the pressure sensor to fail to detect the pressure drop and resulting in a false alarm. If the water film flows slowly due to temperature or vibration, the flow meter may misjudge it as a leak, resulting in a false alarm. However, this invention completely vaporizes the water film by heating, exposing the leak channel as a dry interface. Even the smallest leak can be reliably detected by the sensor. At the same time, there is no flowing medium on the pipe wall after drying, which completely eliminates the interference of water adhering to the pipe wall on the flow meter. The detection results truly reflect the valve sealing status.

[0084] The heating device only operates during the drying stage and is not activated at all during the leak detection stage to avoid heating causing abnormal test readings.

[0085] In use, the heating chamber 910 and the inner space of the detection tube section 4 can be separated by the closed ring plate 912. By opening and closing the separating ring, the heating is connected only when detection is needed, and isolated at other times, thus reducing heat loss and energy consumption.

[0086] Reference Figures 6-10 A manual valve with a sealing structure, including a valve leakage detection device as described in any of the above, further comprising:

[0087] The valve body 2 has an inlet valve pipe 1 and a working valve pipe 3, which is located on one side of the detection pipe section 4.

[0088] Valve body handle 6 is disposed on valve body body 2. Valve body body 2 has valve body cavity 7, and valve core mechanism 10 is disposed inside valve body cavity 7.

[0089] Leakage sealing module 8 is disposed on valve body 2. Leakage sealing module 8 includes multiple expansion agent tanks 806 and receiving control component 802.

[0090] Reference Figures 7-10 In a preferred embodiment, the leakage sealing module 8 further includes:

[0091] An annular bracket 808 is disposed inside the valve body cavity 7. An mounting ring frame 809 is disposed on the annular bracket 808, and multiple expansion agent tanks 806 are disposed on the mounting ring frame 809.

[0092] A drive gear ring 810 is mounted on a mounting ring frame 809.

[0093] The sensing harness 801 is disposed on the detection sensor body 5, and one end of the sensing harness 801 is disposed on the receiving control component 802.

[0094] In this invention, the leakage sealing module 8 further includes:

[0095] The outer ring frame 807 is set on the valve body 2. The receiving control component 802 is set on the outer ring frame 807. The receiving control component 802 is also provided with a central circular plate 814. The valve core mechanism 10 and the valve body 2 are provided with multiple through holes.

[0096] Multiple sealing gaskets 811 are respectively disposed inside multiple through holes;

[0097] An electric telescopic rod 813 is mounted on a central circular plate 814. The output end of the electric telescopic rod 813 is provided with a lifting frame 812. Multiple lifting spikes 815 are provided on the lifting frame 812. The outer walls of the multiple lifting spikes 815 contact the inner walls of multiple sealing gaskets 811 respectively.

[0098] In this invention, the leakage sealing module 8 further includes:

[0099] Servo motor 804 is mounted on valve body 2. The output shaft of servo motor 804 is connected to gear 805 via a coupling. Gear 805 meshes with drive gear ring 810.

[0100] Two control harnesses 803 are provided on the receiving control unit 802, and one end of each control harness 803 is provided on the servo motor 804 and the electric telescopic rod 813, respectively.

[0101] Specifically, during leak sealing, the detection sensor body 5 transmits the leakage information to the receiving control unit 802 through the sensing harness 801, and the receiving control unit 802 controls the servo motor 804 and the electric telescopic rod 813 through the control harness 803. At this time, the electric telescopic rod 813 drives the lifting frame 812 to rise, and further drives the lifting spike rod 815 to rise until the lifting spike rod 815 contacts the expansion agent tank 806 and punctures its bottom. At the same time, the servo motor 804 can drive the gear 805 to rotate. Since the gear 805 meshes with the drive gear ring 810, it can drive the mounting ring frame 809 and the expansion agent tank 806 to rotate, so that the agent is quickly and evenly distributed into the valve body cavity 7, and stops after a short rotation to avoid damaging the sealing elastomer, thereby completing the leak sealing.

[0102] In specific application scenarios, the leakage sealing module 8 is suitable for valve body leakage. When leakage occurs inside the valve body, the leakage sealing module 8 can automatically and urgently seal it to prevent the leakage from expanding and thus avoid secondary hazards such as water damage and flooding. At the same time, no manual intervention is required during sealing, making it particularly suitable for valve locations that are unattended or difficult to access (such as underground pipe networks and high-risk environments), further increasing the applicability of the device. Meanwhile, the chemically expanded material can flow and fill every corner of the valve cavity, and after curing, it forms an elastomer that perfectly fits the shape of the cavity, achieving "zero leakage" level sealing and thus improving the reliability of the sealing.

[0103] It should be noted that the device uses chemical expansion to achieve self-sealing, which allows for a rapid response and further enhances the sealing effect.

[0104] The expansion agent tank 806 can be made of corrosion-resistant rigid material or a composite structure of "corrosion-resistant outer layer and easily puncturable inner liner". Even under long-term immersion in corrosive media such as acid, alkali, salt solution or organic solvent, the tank can still maintain structural integrity and chemical stability, and will not leak or fail prematurely due to corrosion, thus ensuring the long-term reliability of the sealing module under harsh working conditions.

[0105] The expanding agent itself has the characteristic of "expansion can only be triggered when it comes into contact with water (or a specific reaction medium). Even if the tank is accidentally ruptured in a non-specific medium environment, the agent will not expand in volume and will not block the pipeline, thus reducing the probability of false triggering to an extremely low level. Even if a very small probability of false expansion occurs, the result is that the valve is sealed in advance, which is a "fail-safe" mode, which is more controllable and safer than leakage itself.

[0106] Working principle:

[0107] During leak detection, stepper motor 918 operates, driving shaft 922 and adjusting roller 917 to rotate. This causes adjusting roller 917 to tighten connecting harness 919, which in turn drives closed ring plate 912 to move within closed ring groove 911. This causes return spring 927 to deform and compress. As closed ring plate 912 moves, heating chamber 910 connects to the internal space of detection tube section 4 via connecting heat hole 909. At this time, heating element 901 and dual-axis reciprocating motor 903 operate. Heating element 901 is connected to heating ring 924 via heating circuit 926, and further heats multiple heating rods 925 via heating ring 924. Heating is performed so that heat passes through the connecting hot hole 909 to heat the inside of the detection tube section 4 to remove residual fluid moisture in the tube section. At the same time, the dual-axis reciprocating motor 903 can drive the drive gear 902 to rotate. Since the drive gear 902 meshes with the driven gear ring 914, it can drive the driven gear ring 914, heating frame 915, heating ring 924 and heating rod 925 to move, thereby increasing the heating area and improving the effect of the device until the detection tube section 4 is dried. The detection is completed by the detection sensor body 5. After the detection, the device is reset. The closed ring plate 912 can also be reset by the reset spring rod 927 to separate the heating cavity 910 and the inner space of the detection tube section 4.

[0108] During component maintenance, the outer cover 904 can be removed by unscrewing the fixing bolts 905, making it easier for staff to perform maintenance and other operations on the equipment. After the operation, the outer cover 904 can also be installed by unscrewing the fixing bolts 905 to provide protection for the component.

[0109] During leak sealing, the detection sensor body 5 transmits the leakage information to the receiving control unit 802 through the sensing harness 801. The receiving control unit 802 then controls the servo motor 804 and the electric telescopic rod 813 through the control harness 803. At this time, the electric telescopic rod 813 drives the lifting frame 812 to rise, which in turn drives the lifting spike rod 815 to rise until the lifting spike rod 815 contacts the expansion agent tank 806 and punctures its bottom. Simultaneously, the servo motor 804 drives the gear component 805 to rotate. Since the gear component 805 meshes with the drive gear ring 810, it can drive the mounting ring frame 809 and the expansion agent tank 806 to rotate, so that the agent is quickly and evenly distributed into the valve body cavity 7. After a short rotation, the rotation stops to avoid damaging the sealing elastomer, thereby completing the leak sealing.

[0110] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A valve internal leakage detection device, characterized in that, include: The detection pipe section (4) is equipped with a detection sensor body (5). Leakage detection unit (9) is installed on detection pipe section (4). The leakage detection unit (9) includes two heating frames (915) and multiple heating rods (925). The multiple heating rods (925) are located inside the two heating frames (915). An outer cover plate (904) is provided on the detection tube section (4). The outer cover plate (904) and the detection tube section (4) are provided with multiple interconnected locking holes (906). Each of the multiple locking holes (906) is provided with a fixing bolt (905).

2. The valve internal leakage detection device according to claim 1, characterized in that, The leakage detection unit (9) also includes: Two closed annular grooves (911) are provided on the detection tube section (4). Two heating chambers (910) are also provided on the detection tube section (4). Two heating frames (915) are respectively provided inside the two heating chambers (910). Multiple interconnected heat holes (909) are respectively opened inside two closed annular grooves (911), and the multiple interconnected heat holes (909) are respectively connected to the interior of two heating cavities (910).

3. The valve internal leakage detection device according to claim 2, characterized in that, The leakage detection unit (9) also includes: Two reciprocating ports (907) are provided on the detection tube section (4). The two reciprocating ports (907) are respectively connected to the interior of the two heating chambers (910). The interior of the two heating chambers (910) is also provided with a connecting port. A dual-axis reciprocating motor (903) is installed on the detection tube section (4). The two output shafts of the dual-axis reciprocating motor (903) are connected to drive gears (902) through couplings. The two drive gears (902) pass through two connecting ports respectively.

4. The valve internal leakage detection device according to claim 3, characterized in that, The leakage detection unit (9) also includes: Two passive gear rings (914) are respectively disposed on two heating frames (915), and the two passive gear rings (914) mesh with two driving gears (902) respectively; Two heating rings (924) are respectively disposed on two heating frames (915), and multiple heating rods (925) are respectively disposed on the two heating rings (924). Heating lines (926) are also disposed on the two heating rings (924), and the two heating lines (926) pass through two reciprocating movable ports (907).

5. A valve internal leakage detection device according to claim 4, characterized in that, The leakage detection unit (9) also includes: Two heating elements (901) are provided on the detection tube section (4), and one end of each of the two heating lines (926) is provided on the two heating elements (901); Multiple mounting cavities (908) are provided on the detection pipe section (4). The multiple mounting cavities (908) are connected to two closed ring grooves (911) respectively. The two closed ring grooves (911) are provided with closed ring plates (912) inside. Two ring plate grooves (913) are provided on the two closed ring plates (912). Multiple reset spring rods (927) are respectively disposed inside two closed annular grooves (911), and one end of each of the multiple reset spring rods (927) is respectively disposed on two closed annular plates (912); Multiple annular groove sealing rings (916) are respectively disposed inside multiple annular plate grooves (913), and the outer walls of the multiple annular groove sealing rings (916) are respectively in contact with the inner walls of two closed annular grooves (911).

6. The valve internal leakage detection device according to claim 5, characterized in that, The leakage detection unit (9) also includes: Multiple mounting brackets (923) are respectively disposed inside multiple mounting cavities (908). Each of the multiple mounting brackets (923) is provided with a shaft member (922). Each of the multiple shaft members (922) is provided with an adjusting roller (917). Each of the multiple adjusting rollers (917) is provided with a connecting wire harness (919). One end of each of the multiple connecting wire harnesses (919) is respectively disposed on two closed ring plates (912). Multiple stepper motors (918) are respectively mounted on multiple mounting brackets (923), and the output shafts of the multiple stepper motors (918) are respectively connected to one end of multiple shaft members (922) through couplings; Multiple guide wheel frames (921) are respectively disposed inside multiple mounting cavities (908), and each of the multiple guide wheel frames (921) is provided with a guide wheel component (920). The outer wall of multiple connecting wire harnesses (919) is in contact with the inner wall of the multiple guide wheel components (920).

7. A manual valve with a sealing structure, comprising the valve internal leakage detection device as described in any one of claims 1-6, characterized in that, Also includes: The valve body (2) is provided with an inlet valve pipe (1) and a working valve pipe (3) is also provided on the valve body (2). The working valve pipe (3) is located on one side of the detection pipe section (4). A valve body handle (6) is provided on the valve body body (2). A valve body cavity (7) is provided on the valve body body (2). A valve core mechanism (10) is provided inside the valve body cavity (7). Leakage sealing module (8) is disposed on valve body body (2). The leakage sealing module (8) includes multiple expansion agent tanks (806) and receiving control unit (802).

8. A manual valve with a sealing structure according to claim 7, characterized in that, The leakage sealing module (8) also includes: An annular support (808) is provided inside the valve body cavity (7). An mounting ring frame (809) is provided on the annular support (808). Multiple expansion agent tanks (806) are all provided on the mounting ring frame (809). A drive gear ring (810) is mounted on a mounting ring frame (809); A sensing harness (801) is disposed on the detection sensor body (5), and one end of the sensing harness (801) is disposed on the receiving control unit (802).

9. A manual valve with a sealing structure according to claim 8, characterized in that, The leakage sealing module (8) also includes: An outer ring frame (807) is provided on the valve body (2), and a receiving control component (802) is provided on the outer ring frame (807). A central circular plate (814) is also provided on the receiving control component (802). The valve core mechanism (10) and the valve body (2) are provided with multiple through holes. Multiple sealing gaskets (811) are respectively disposed inside multiple through holes; An electric telescopic rod (813) is mounted on a central circular plate (814). The output end of the electric telescopic rod (813) is provided with a lifting frame (812). Multiple lifting spikes (815) are provided on the lifting frame (812). The outer walls of the multiple lifting spikes (815) are in contact with the inner walls of multiple sealing gaskets (811).

10. A manual valve with a sealing structure according to claim 9, characterized in that, The leakage sealing module (8) also includes: A servo motor (804) is mounted on the valve body (2). The output shaft of the servo motor (804) is connected to a gear (805) via a coupling. The gear (805) meshes with a drive gear ring (810). Two control harnesses (803) are provided on the receiving control unit (802), and one end of each of the two control harnesses (803) is provided on the servo motor (804) and the electric telescopic rod (813), respectively.

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