Multifunctional detection system for testing working performance of equipment parts

By designing a multifunctional detection system to perform performance testing on the pilot-operated pressure reducing valve and dual-media nozzle, the problem of unstable equipment parts after repair was solved, the maintenance quality and efficiency were improved, and the production stability of cigarette silk thread was ensured.

CN120702746APending Publication Date: 2025-09-26CHINA TOBACCO ANHUI IND CO LTD
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Patent Information

Application Number
CN202511153424.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-18
Publication Date
2025-09-26

AI Technical Summary

Technical Problem

In the prior art, pilot-operated pressure reducing valves and dual-media nozzles lack testing and verification after repair, resulting in unstable working performance of equipment components and affecting the product quality and production efficiency of cigarette thread.

Method used

A multifunctional detection system was designed, including water pipelines and injection pipelines. The performance of the pilot-operated pressure reducing valve and dual-media nozzle was tested through manual valves and pressure gauges to simulate actual working conditions and ensure the stable performance of the repaired equipment parts.

Benefits of technology

The reliability testing of repaired equipment parts has been achieved, which has improved the quality and efficiency of maintenance, guaranteed the stable performance of the equipment, and ensured the production process quality of cigarette silk thread.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a multifunctional detection system for testing the working performance of equipment parts. A waterway pipeline is provided with a first manual valve, a pressure reducing valve and a first pressure gauge, and the output end of the waterway pipeline is connected to a feed liquid port of a double-medium nozzle; the injection pipeline is sequentially divided into an input section, a pilot pressure reducing valve detection section and an output section from the input end to the output end; two input branches of the input section are connected in parallel, are provided with manual valves and are respectively used for receiving compressed air and steam; two output branches of the output section are connected in parallel and are both provided with manual valves, one branch is connected to an injection port of the double-medium nozzle, and the other branch serves as an injection pipeline and is used for detecting an outlet of a pilot-operated type pressure reducing valve; the pilot-operated type pressure reducing valve detection section is sequentially provided with a second pressure gauge, a detachable pilot-operated type pressure reducing valve and a third pressure gauge in the flow direction. According to the invention, the maintained and repaired core equipment parts of the tobacco production line can be tested and verified, and the stable and reliable working performance of the core equipment parts is ensured.
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Description

Technical Field

[0001] The present invention relates to the technical field of cigarette production, and more particularly to a multifunctional detection system for testing the working performance of equipment parts. Background Art

[0002] Cigarette-making lines widely use pilot-operated pressure-reducing valves to precisely control process steam pressure, and dual-media nozzles to atomize sugar and flavorings for uniform application. As core components critical to tobacco-making product quality, these valves and nozzles require prompt replacement if their performance fluctuates. This is expensive, and replacements often require maintenance and repair.

[0003] After repair, the pilot-operated pressure-reducing valve and dual-media nozzle lacked testing and verification, resulting in poor repair quality and a high risk of recurring performance fluctuations. Repeated component replacement is not only time-consuming and labor-intensive, but also severely impacts product quality and production efficiency in cigarette thread production. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention proposes a multifunctional detection system for testing the working performance of equipment parts, which can test and verify the core parts of silk thread making equipment after maintenance and repair, ensuring their stable and reliable working performance.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A multifunctional testing system for testing the working performance of equipment components, including pilot-operated pressure reducing valves and dual-media nozzles. The dual-media nozzle receives compressed air or steam through an injection port and receives sugar and flavor liquid through a liquid port. Its structural features are: The multifunctional detection system includes a water pipeline and an ejection pipeline; The water pipeline is provided with a first manual valve, a pressure reducing valve, and a first pressure gauge in sequence from the input end to the output end, and the output end is connected to the liquid port of the dual-medium nozzle; The ejection pipeline is divided into an input section, a pilot-operated pressure reducing valve detection section, and an output section from the input end to the output end; the input section forms two parallel input branches, both with manual valves, one for receiving compressed air and the other for receiving steam, and the output ends of the two input branches converge and are connected to the input end of the pilot-operated pressure reducing valve detection section; the output section forms two parallel output branches, both with manual valves, one output end is connected to the ejection port of the dual-medium nozzle, and the other output end serves as the ejection pipeline for the outlet when detecting the pilot-operated pressure reducing valve, the input ends of the two output branches converge and are connected to the output end of the pilot-operated pressure reducing valve detection section; the pilot-operated pressure reducing valve detection section is provided with a second pressure gauge, a pilot-operated pressure reducing valve, and a third pressure gauge in sequence along the flow direction, and the pilot-operated pressure reducing valve is detachably connected to the pilot-operated pressure reducing valve detection section.

[0006] The structural characteristics of the present invention are also: In the two input branches of the input section, the input end of the first input branch is connected to a metal hose, and a second manual valve is provided downstream of the metal hose. The input end of the second input branch is connected to a quick connector, and a third manual valve is provided downstream of the quick connector.

[0007] Of the two output branches of the output section, the first output branch is provided with a fourth manual valve, and the second output branch is provided with a fifth manual valve.

[0008] Each manual valve, pressure reducing valve, pilot-operated pressure reducing valve and adjacent pipelines are connected via flanges, and the quick connector, metal hose and each pressure gauge and adjacent pipelines are connected via pipe threads.

[0009] The inlet and outlet of the pilot-operated pressure reducing valve are respectively connected to flange pipes, which are then flange-connected to adjacent pipelines.

[0010] The pipes used for water pipelines and injection pipelines are 4-point carbon steel pipes.

[0011] The whole is placed on a mobile platform vehicle.

[0012] Compared with the existing technology, the beneficial effects of the present invention are embodied in: The present invention can be used to test the working performance of dual-media nozzles and pilot-operated pressure-reducing valves, ensuring stable and reliable working performance of repaired core parts of cigarette thread-making equipment, improving maintenance quality and efficiency while ensuring that the equipment production process maintains high-level and stable performance. By connecting steam / compressed air at a set pressure through the injection pipeline, the working performance of the pilot-operated pressure-reducing valve (including the pressure-reducing and pressure-stabilizing functions of the valve body) can be tested. By connecting test water at a set pressure through the water pipeline and steam / compressed air at a set pressure through the injection pipeline, the injection and atomization effects of the dual-media nozzle can be tested. The present invention can switch to testing the dual-media nozzle or the pilot-operated pressure-reducing valve by operating the manual valve. The pilot-operated pressure-reducing valve is easy to disassemble and assemble, and the operation is convenient and easy. Steam or compressed air can be introduced through the injection pipeline to meet the performance simulation test of the pilot-operated pressure-reducing valve and the dual-media nozzle under different testing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] In the picture: 1 dual-media nozzle; 2 water pipeline; 21 first manual valve; 22 pressure reducing valve; 23 first pressure gauge; 31 First input branch; 311 Metal hose; 312 Second manual valve; 32 Second input branch; 321 Quick connector; 322 Third manual valve; 33 Pilot-operated pressure reducing valve detection section; 331 Second pressure gauge; 332 Pilot-operated pressure reducing valve; 333 Third pressure gauge; 334 Flange pipe; 34 First output branch; 341 Fourth manual valve; 35 Second output branch; 351 Fifth manual valve. DETAILED DESCRIPTION

[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0016] Please refer to Figure 1 The multifunctional detection system for testing the working performance of equipment components of this embodiment is used to detect the pilot-operated pressure reducing valve 332 and the dual-medium nozzle 1. The dual-medium nozzle 1 receives compressed air or steam through an injection port and receives sugar and flavor liquid through a liquid port. The multifunctional detection system includes a water pipeline 2 and an injection pipeline. The dual-medium nozzle 1 is tested through the water pipeline 2 and the injection pipeline, and the pilot-operated pressure reducing valve 332 is tested through the injection pipeline. The water pipeline 2 is provided with a first manual valve 21, a pressure reducing valve 22, and a first pressure gauge 23 in sequence from the input end to the output end, and the output end is connected to the liquid port of the dual-medium nozzle 1; The ejection pipeline is divided into an input section, a pilot-operated pressure reducing valve detection section 33, and an output section from the input end to the output end; the input section forms two parallel input branches, both with manual valves, one for receiving compressed air and the other for receiving steam, and the output ends of the two input branches converge and are connected to the input end of the pilot-operated pressure reducing valve detection section 33; the output section forms two parallel output branches, both with manual valves, one output end is connected to the ejection port of the dual-medium nozzle 1, and the other output end is used as the ejection pipeline for the outlet when detecting the pilot-operated pressure reducing valve 332, the input ends of the two output branches converge and are connected to the output end of the pilot-operated pressure reducing valve detection section 33; the pilot-operated pressure reducing valve detection section 33 is provided with a second pressure gauge 331, a pilot-operated pressure reducing valve 332, and a third pressure gauge 333 in sequence along the flow direction, and the pilot-operated pressure reducing valve 332 is detachably connected to the pilot-operated pressure reducing valve detection section 33.

[0017] In the specific implementation of the multifunctional detection system for testing the working performance of equipment parts of this embodiment, the corresponding structural settings also include: Of the two input branches of the input section, the first input branch 31 is used to receive steam, with its input end connected to a metal hose 311 and a second manual valve 312 provided downstream of the metal hose 311, which can be connected to an external steam pipeline through the metal hose 311; the second input branch 32 is used to receive compressed air, with its input end connected to a quick connector 321 and a third manual valve 322 provided downstream of the quick connector 321, which can be connected to an external compressed air pipeline through the quick connector 321 (straight end quick plug).

[0018] Of the two output branches of the output section, the first output branch 34 is provided with a fourth manual valve 341 , and the second output branch 35 is provided with a fifth manual valve 351 .

[0019] Each manual valve, pressure reducing valve 22, pilot pressure reducing valve 332 and adjacent pipelines are connected via flanges, and the quick connector 321, metal hose 311 and each pressure gauge are connected via pipe threads.

[0020] The inlet and outlet of the pilot-operated pressure reducing valve 332 are respectively connected to flange pipes, and are flange-connected to adjacent pipelines through the flange pipes.

[0021] In the water pipeline 2 and the ejector pipeline, the pipes used to connect the various components are 4-point carbon steel pipes.

[0022] The whole system is placed on a mobile platform vehicle, and a scissor jack can be added below the pilot-operated pressure reducing valve 332 to facilitate the movement of the system and save time and effort in disassembling and assembling the valve body.

[0023] Used to test the working performance of the repaired pilot-operated pressure reducing valve 332: Remove the pilot pressure reducing valve 332 and the matching flange pipe in the ejector line, and replace the repaired pilot pressure reducing valve 332 together with the matching flange pipe to the pilot pressure reducing valve detection section 33; The ejector line is connected to steam through the first input branch 31 or compressed air through the second input branch 32 according to actual testing requirements. If steam is connected, the second manual valve 312 on the first input branch 31 is opened and the third manual valve 322 on the second input branch 32 is closed. If compressed air is connected, the second manual valve 312 on the first input branch 31 is closed and the third manual valve 322 on the second input branch 32 is opened. Close the fourth manual valve 341 on the first output branch 34 and partially open the fifth manual valve 351 on the second output branch 35 to simulate a certain valve opening. Observe the value of the third pressure gauge 333 on the pilot-operated pressure-reducing valve detection section 33 to detect the working performance of the repaired pilot-operated pressure-reducing valve 332, such as the pressure-reducing and pressure-stabilizing functions of the valve body.

[0024] When used to test the injection and atomization performance of dual-medium nozzle 1: Close the fifth manual valve 351 on the second output branch 35 and open the fourth manual valve 341 on the first output branch 34; Connect the water line 2 to the test water to simulate the sugar flavoring liquid, and open the first manual valve 21 on the water line 2; The ejector line is connected to steam through the first input branch 31 or compressed air through the second input branch 32 according to actual testing requirements. If steam is connected, the second manual valve 312 on the first input branch 31 is opened and the third manual valve 322 on the second input branch 32 is closed. If compressed air is connected, the second manual valve 312 on the first input branch 31 is closed and the third manual valve 322 on the second input branch 32 is opened. Observe the values ​​of the first pressure gauge 23 on the water pipeline 2 and the third pressure gauge 333 on the pilot-operated pressure reducing valve detection section 33, and adjust the pressure reducing valve 22 and the pilot-operated pressure reducing valve 332 according to actual production conditions to control the pressure of the detection media in the two pipelines, so as to realize the detection of the injection and atomization effect of the sugar and flavor liquid by the dual-medium nozzle 1.

[0025] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A multifunctional testing system for testing the working performance of equipment components, including pilot-operated pressure reducing valves and dual-medium nozzles. The dual-medium nozzles receive compressed air or steam through an injection port and receive sugar and flavor liquid through a liquid port. The system is characterized by: The multifunctional detection system includes a water pipeline and an ejection pipeline; The water pipeline is provided with a first manual valve, a pressure reducing valve, and a first pressure gauge in sequence from the input end to the output end, and the output end is connected to the liquid port of the dual-medium nozzle; The ejection pipeline is divided into an input section, a pilot-operated pressure reducing valve detection section, and an output section from the input end to the output end; the input section forms two parallel input branches, both with manual valves, one for receiving compressed air and the other for receiving steam, and the output ends of the two input branches converge and are connected to the input end of the pilot-operated pressure reducing valve detection section; the output section forms two parallel output branches, both with manual valves, one output end is connected to the ejection port of the dual-medium nozzle, and the other output end serves as the ejection pipeline for the outlet when detecting the pilot-operated pressure reducing valve, the input ends of the two output branches converge and are connected to the output end of the pilot-operated pressure reducing valve detection section; the pilot-operated pressure reducing valve detection section is provided with a second pressure gauge, a pilot-operated pressure reducing valve, and a third pressure gauge in sequence along the flow direction, and the pilot-operated pressure reducing valve is detachably connected to the pilot-operated pressure reducing valve detection section.

2. The multifunctional detection system for testing the working performance of equipment parts according to claim 1 is characterized by: In the two input branches of the input section, the input end of the first input branch is connected to a metal hose, and a second manual valve is provided downstream of the metal hose. The input end of the second input branch is connected to a quick connector, and a third manual valve is provided downstream of the quick connector.

3. The multifunctional detection system for testing the working performance of equipment parts according to claim 1 is characterized by: Of the two output branches of the output section, the first output branch is provided with a fourth manual valve, and the second output branch is provided with a fifth manual valve.

4. The multifunctional detection system for testing the working performance of equipment parts according to claim 1 is characterized by: Each manual valve, pressure reducing valve, pilot-operated pressure reducing valve and adjacent pipelines are connected via flanges, and the quick connector, metal hose and each pressure gauge and adjacent pipelines are connected via pipe threads.

5. The multifunctional detection system for testing the working performance of equipment parts according to claim 4 is characterized in that: The inlet and outlet of the pilot-operated pressure reducing valve are respectively connected to flange pipes, which are then flange-connected to adjacent pipelines.

6. The multifunctional detection system for testing the working performance of equipment parts according to claim 1, characterized in that: The pipes used for water pipelines and injection pipelines are 4-point carbon steel pipes.

7. The multifunctional detection system for testing the working performance of equipment parts according to claim 1, characterized in that: The whole is placed on a mobile platform vehicle.