A device for on-line real-time monitoring of tetrahydrothiophene in fuel gas

Abstract

The utility model provides a kind of four hydrogen thiophene on-line real-time monitoring device in gas, including main pipe body;Vice pipe body is arranged in the side of main pipe body;Mixing pipe for making four hydrogen thiophene gas and gas in main pipe body mix evenly is located in the inside of main pipe body, the mixing pipe is located in the rear of vice pipe body;It further includes concentration detection sensor for carrying out real-time detection to mixed gas in main pipe body and is arranged in the end of main pipe body;Three-way electromagnetic valve for transmitting mixed gas in main pipe body is connected with concentration detection sensor, inlet and first outlet are arranged on the outer wall of three-way electromagnetic valve, the inlet is connected with concentration detection sensor, the first outlet in three-way electromagnetic valve is connected with branch pipe body, second outlet is further arranged on the outer wall of three-way electromagnetic valve, gas holder can be detachably connected on the second outlet.This device can carry out real-time monitoring to the concentration of four hydrogen thiophene gas, ensure that the concentration of four hydrogen thiophene gas is in reasonable range.

Description

Technical Field

[0001] This utility model relates to the field of monitoring device technology, and in particular to an online real-time monitoring device for tetrahydrothiophene in fuel gas. Background Technology

[0002] The main components of natural gas are hydrocarbons such as methane and propane, which are colorless, odorless, and tasteless. When a gas leak occurs, it cannot be detected directly by the senses. Once the leak reaches a certain concentration, it may cause an explosion or fire upon contact with an ignition source, or lead to asphyxiation due to lack of oxygen, posing a significant safety hazard. Tetrahydrothiophene is a sulfur-containing heterocyclic compound with a strong, pungent odor that is highly detectable, even at extremely low concentrations. Therefore, adding tetrahydrothiophene to natural gas allows users to identify gas leaks by smell, ensuring the safety of gas usage.

[0003] To ensure that users can promptly detect gas leaks using their normal sense of smell and that tetrahydrothiophene does not adversely affect human health, the concentration of tetrahydrothiophene added needs to be maintained within a certain safe range. However, existing gas pipelines do not have tetrahydrothiophene concentration detection devices, making it impossible to monitor the concentration of tetrahydrothiophene in the pipeline in real time. Utility Model Content

[0004] To address the technical problem that existing gas pipelines lack tetrahydrothiophene concentration detection devices, thus preventing real-time monitoring of tetrahydrothiophene concentration in the pipeline, this invention provides an online real-time monitoring device for tetrahydrothiophene in gas.

[0005] The present invention provides an online real-time monitoring device for tetrahydrothiophene in fuel gas, which adopts the following technical solution: A real-time online monitoring device for tetrahydrothiophene in fuel gas includes a main pipe; a secondary pipe disposed on the side of the main pipe and connected to it; wherein a mixing pipe is disposed inside the main pipe to uniformly mix tetrahydrothiophene gas with the gas in the main pipe, the mixing pipe being located at the rear of the secondary pipe; a concentration detection sensor disposed at the end of the main pipe for real-time detection of the mixed gas in the main pipe; and a three-way solenoid valve connected to the concentration detection sensor for transmitting the mixed gas in the main pipe, the three-way solenoid valve having an inlet and a first outlet on its outer wall, the inlet being connected to the concentration detection sensor, the first outlet of the three-way solenoid valve being connected to the branch pipe, and a second outlet also being disposed on the outer wall of the three-way solenoid valve, the second outlet being detachably connected to a gas collecting bottle.

[0006] By adopting the above technical solution: the gas is mixed uniformly through multiple direction changes using a mixing tube, the concentration of the mixed tetrahydrothiophene gas is monitored in real time using a concentration detection sensor, and the concentration of the mixed tetrahydrothiophene gas can be manually detected using a gas collecting bottle, thus ensuring the accuracy of tetrahydrothiophene gas concentration detection.

[0007] Furthermore, the inlet of the three-way solenoid valve is connected to a concentration detection sensor via a connecting pipe, and the three-way solenoid valve is also equipped with a detection structure for detecting the gas pressure inside the device.

[0008] By adopting the above technical solution, the gas pressure inside the device is detected by a three-way solenoid valve to prevent excessive gas pressure from causing safety hazards.

[0009] Furthermore, the mixing pipe has a main pipe with multiple through holes 2 on the outer wall of the main pipe, a baffle is provided at one end of the mixing pipe near the secondary pipe body, and a retaining ring is provided at the other end of the mixing pipe. Multiple through holes 1 are provided at the edge of the baffle, and a through hole is provided at the center of the retaining ring.

[0010] By adopting the above technical solution, the gas is diverted and mixed through through hole one and through hole two, so that the gas is mixed evenly.

[0011] Furthermore, a sealing assembly for automatically sealing the second outlet end is provided on the inner side of the second outlet end.

[0012] By adopting the above technical solution, the second outlet can be automatically sealed by the sealing component.

[0013] Furthermore, the sealing assembly includes a connecting sleeve disposed inside the second outlet end, and a sealing cap is connected to the connecting sleeve by a spring pin. Under the elastic force of the spring pin, the sealing cap closes and seals the connecting sleeve.

[0014] By adopting the above technical solution, the sealing cover automatically seals the connecting sleeve under the elastic force of the spring pin.

[0015] Furthermore, the gas collecting bottle includes a first convex ring and a second convex ring disposed inside the bottle opening, and a sliding plate is slidably disposed between the first convex ring and the second convex ring.

[0016] By adopting the above technical solution, the second convex ring can be sealed by setting a sliding plate.

[0017] Furthermore, a plurality of sliding pins are fixedly connected to the first convex ring. The sliding pins pass through the first convex ring and extend outward, forming a sliding connection with the first convex ring. A spring is sleeved on the sliding pin. The spring is disposed between the sliding plate and the first convex ring. Under the elastic force of the spring, the sliding plate seals the second convex ring.

[0018] By adopting the above technical solution, the sliding plate can automatically seal the second convex ring under the elastic force of the spring.

[0019] Furthermore, a rod extends outward from the end of the second convex ring away from the slide plate, and the sealing cover separates from the connecting sleeve when the rod contacts and connects with the sealing cover.

[0020] By adopting the above technical solution, the mixed gas in the device can push the slide plate away from the second convex ring, so that the mixed gas can enter the gas collecting bottle for collection after passing through the connecting sleeve, the second convex ring, and the first convex ring.

[0021] In summary, the beneficial effects of this utility model are as follows: 1. This invention, by incorporating a concentration detection sensor and a mixing tube, allows for the mixing of gaseous fuel into the main pipe and tetrahydrothiophene gas into the main pipe via a secondary pipe. The gas is then repeatedly mixed and diverted within the main pipe by the mixing tube, ensuring a relatively stable tetrahydrothiophene gas concentration and preventing significant fluctuations, thus improving monitoring accuracy. The mixed gas is monitored in real-time by the concentration detection sensor. Gas that passes the test is transferred to the branch pipe via a three-way solenoid valve, which also monitors the gas pressure within the device. This device enables real-time monitoring of the tetrahydrothiophene gas concentration, ensuring it remains within a reasonable range.

[0022] 2. This utility model, by setting up a gas collecting bottle, is installed at the end of the second outlet during use. The rod at the end of the gas collecting bottle pushes the sealing cap in the sealing assembly outward. Under the pressure of the mixed gas in the device, the sliding plate is pushed open from the second convex ring. The gas enters the gas collecting bottle for collection after passing through the connecting sleeve, the second convex ring, and the first convex ring. When testing is required, the gas collecting bottle is removed from the end of the second outlet. The sliding plate seals the second convex ring under the action of the spring force, and the sealing cap seals the connecting sleeve under the action of the spring pin force. Users can manually test the gas in the gas collecting bottle. This structure effectively prevents the inability to detect tetrahydrothiophene gas in the device in a timely manner when the concentration detection sensor is damaged or the detection accuracy is inaccurate due to excessively high or low ambient temperature. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic cross-sectional view of the present invention; Figure 3 This utility model Figure 2 Enlarged view of part A in the middle; Figure 4 This utility model Figure 2Enlarged view of part B in the middle; Figure 5 This is a schematic diagram of the mixing tube structure of this utility model.

[0024] In the diagram: 1-Main pipe; 2-Secondary pipe; 3-Concentration sensor; 4-Three-way solenoid valve; 5-Branch pipe; 6-Connecting pipe; 7-Mixing pipe; 8-Gas collecting bottle; 9-Sealing assembly; 41-Inlet; 42-First outlet; 43-Second outlet; 71-Main pipe; 72-Baffle; 73-Retaining ring; 81-First convex ring; 82-Second convex ring; 83-Sliding plate; 85-Rod; 91-Connecting sleeve; 92-Sealing cap; 93-Spring pin; 721-Through hole one; 722-Through hole two; 731-Through hole; 831-Sliding pin; 832-Spring. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0026] Example: Figures 1-5 The image shows an online real-time monitoring device for tetrahydrothiophene in fuel gas.

[0027] The first embodiment of this utility model, referred to... Figure 1 and Figure 2 As shown, an online real-time monitoring device for tetrahydrothiophene in gas includes a main pipe 1 connected to a gas pipeline; a secondary pipe 2 disposed on the side of the main pipe 1 and connected to the main pipe 1, through which tetrahydrothiophene gas is added to the main pipe 1; a mixing pipe 7 disposed inside the main pipe 1 to ensure uniform mixing of the tetrahydrothiophene gas with the gas in the main pipe 1, the mixing pipe 7 being located at the rear of the secondary pipe 2; a concentration detection sensor 3 disposed at the end of the main pipe 1 to perform real-time detection of the mixed gas in the main pipe 1; and a three-way solenoid valve 4 connected to the concentration detection sensor 3 to transmit the mixed gas in the main pipe 1. The three-way solenoid valve 4 has an inlet 41 and a first outlet 42 disposed on its outer wall. The inlet 41 of the three-way solenoid valve 4 is connected to the concentration detection sensor 3 via a connecting pipe 6, and the first outlet 42 of the three-way solenoid valve 4 is connected to a branch pipe 5. The three-way solenoid valve 4 is also provided with a detection structure for detecting the gas pressure inside the device.

[0028] Specifically, refer to Figures 2-3As shown, the mixing pipe 7 has a main pipe 71 with multiple through holes 722 on its outer wall. A baffle 72 is located at one end of the mixing pipe 7 near the secondary pipe 2, and a baffle ring 73 is located at the other end. Multiple through holes 721 are located at the edge of the baffle 72, and a through hole 731 is located at the center of the baffle ring 73. After adding tetrahydrothiophene gas, the gas mixture changes direction through the through holes 721 and 722 and enters the main pipe 71 for uniform mixing. This multiple direction-changing mixing ensures more uniform gas mixing, guaranteeing a relatively stable tetrahydrothiophene gas concentration detected later, preventing large fluctuations and improving monitoring accuracy. The mixed gas mixture is then output through the through hole 731 in the baffle ring 73.

[0029] In use, this invention allows the gas to enter the main pipe 1, while tetrahydrothiophene gas also enters the main pipe 1 through the secondary pipe 2. The gas is then mixed uniformly through multiple direction changes via the mixing pipe 7 inside the main pipe 1, ensuring a relatively stable tetrahydrothiophene gas concentration detected later, preventing significant fluctuations and improving monitoring accuracy. The mixed gas is monitored in real-time by the concentration sensor 3. Gas that passes the concentration test is transferred to the branch pipe 5 via a three-way solenoid valve 4, which also monitors the gas pressure within the device. This device can monitor the concentration of tetrahydrothiophene gas in real-time, ensuring that the concentration remains within a reasonable range.

[0030] The second embodiment of this utility model is described below. Figure 2 and Figure 5 As shown, the three-way solenoid valve 4 also has a second outlet 43 on its outer wall. A gas collecting bottle 8 is detachably connected to the second outlet 43, and the mixed gas in the main body 1 is collected through the gas collecting bottle 8. By setting the gas collecting bottle 8, when the concentration detection sensor 3 is damaged due to excessively high or low ambient temperature or inaccurate detection accuracy, the gas collecting bottle 8 can be removed to manually detect the mixed gas.

[0031] Specifically, refer to Figure 5 As shown, a sealing component 9 for automatically sealing the end of the second outlet 43 is provided on the inner side of the end of the second outlet 43. The sealing component 9 includes a connecting sleeve 91 provided on the inner side of the end of the second outlet 43. A sealing cover 92 is connected to the connecting sleeve 91 by a spring pin 93. Under the elastic force of the spring pin 93, the sealing cover 92 closes and seals the connecting sleeve 91.

[0032] Furthermore, refer to Figure 5As shown, the gas collecting bottle 8 has a structure including a first convex ring 81 and a second convex ring 82 disposed inside the bottle mouth of the gas collecting bottle 8. A sliding piece 83 is slidably disposed between the first convex ring 81 and the second convex ring 82. Preferably, a plurality of sliding pins 831 are fixedly connected to the first convex ring 81. The sliding pins 831 pass through the first convex ring 81 and extend outward, forming a sliding connection with the first convex ring 81. A spring 832 is sleeved on the sliding pin 831. The spring 832 is located between the sliding plate 83 and the first convex ring 81. Under the elastic force of the spring 832, the sliding plate 83 seals the second convex ring 82. A rod 85 is provided at the end of the second convex ring 82 away from the sliding plate 83. The rod 85 can contact the sealing cover 92 and push the sealing cover 92 away from the connecting sleeve 91. In use, the mixed gas in the device pushes the sliding plate 83 away from the second convex ring 82. At this time, the mixed gas enters the gas collecting bottle 8 for collection after passing through the connecting sleeve 91, the second convex ring 82 and the first convex ring 81.

[0033] In use, the gas collecting bottle 8 is installed at the end of the second outlet 43. The rod 85 at the end of the gas collecting bottle 8 pushes the sealing cap 92 in the sealing assembly 9 outward. Under the pressure of the mixed gas in the device, the sliding plate 83 is pushed open from the second convex ring 82. The gas enters the gas collecting bottle 8 for collection after passing through the connecting sleeve 91, the second convex ring 82 and the first convex ring 81. When testing is required, the gas collecting bottle 8 is removed from the end of the second outlet 43. The sliding plate 83 seals the second convex ring 82 under the elastic force of the spring 832, and the sealing cap 92 seals the connecting sleeve 91 under the elastic force of the spring pin 93. The user can manually test the gas in the gas collecting bottle 8. This structure effectively prevents the inability to detect tetrahydrothiophene gas in the device in a timely manner when the concentration detection sensor 3 is damaged or the detection accuracy is inaccurate due to excessively high or low ambient temperature.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An online real-time monitoring device for tetrahydrothiophene in fuel gas, comprising a main pipe body (1); and a secondary pipe body (2) disposed on the side of the main pipe body (1) and connected to the main pipe body (1); characterized in that, A mixing tube (7) is provided inside the main body (1) to mix tetrahydrothiophene gas with the gas inside the main body (1) evenly. The mixing tube (7) is located at the rear of the secondary tube (2). It also includes a concentration detection sensor (3) provided at the end of the main body (1) to detect the mixed gas inside the main body (1) in real time. A three-way solenoid valve (4) is connected to the concentration detection sensor (3) to transmit the mixed gas inside the main body (1). The three-way solenoid valve (4) has an inlet (41) and a first outlet (42) on its outer wall. The inlet (41) is connected to the concentration detection sensor (3). The first outlet (42) of the three-way solenoid valve (4) is connected to the branch tube (5). The three-way solenoid valve (4) also has a second outlet (43) on its outer wall. A gas collecting bottle (8) is detachably connected to the second outlet (43).

2. The online real-time monitoring device for tetrahydrothiophene in fuel gas according to claim 1, characterized in that, The inlet (41) of the three-way solenoid valve (4) is connected to the concentration detection sensor (3) through the connecting pipe (6). The three-way solenoid valve (4) is also equipped with a detection structure for detecting the gas pressure inside the device.

3. The online real-time monitoring device for tetrahydrothiophene in fuel gas according to claim 1, characterized in that, The mixing pipe (7) has a main pipe (71), and multiple through holes (722) are provided on the outer wall of the main pipe (71). A baffle (72) is provided at one end of the mixing pipe (7) near the secondary pipe body (2), and a retaining ring (73) is provided at the other end of the mixing pipe (7). Multiple through holes (721) are provided at the edge of the baffle (72), and a through hole (731) is provided at the center of the retaining ring (73).

4. The online real-time monitoring device for tetrahydrothiophene in fuel gas according to claim 1, characterized in that, A sealing assembly (9) for automatically sealing the end of the second outlet (43) is provided on the inner side of the end of the second outlet (43).

5. The online real-time monitoring device for tetrahydrothiophene in fuel gas according to claim 4, characterized in that, The sealing assembly (9) includes a connecting sleeve (91) disposed inside the end of the second outlet (43). A sealing cap (92) is connected to the connecting sleeve (91) by a spring pin (93). Under the elastic force of the spring pin (93), the sealing cap (92) covers and seals the connecting sleeve (91).

6. The online real-time monitoring device for tetrahydrothiophene in fuel gas according to claim 5, characterized in that, The gas collecting bottle (8) includes a first convex ring (81) and a second convex ring (82) disposed inside the mouth of the gas collecting bottle (8), and a sliding piece (83) is slidably disposed between the first convex ring (81) and the second convex ring (82).

7. The online real-time monitoring device for tetrahydrothiophene in fuel gas according to claim 6, characterized in that, Multiple sliding pins (831) are fixedly connected to the first convex ring (81). The sliding pins (831) pass through the first convex ring (81) and extend outward, forming a sliding connection with the first convex ring (81). A spring (832) is sleeved on the sliding pin (831). The spring (832) is located between the sliding plate (83) and the first convex ring (81). Under the elastic force of the spring (832), the sliding plate (83) seals the second convex ring (82).

8. The online real-time monitoring device for tetrahydrothiophene in fuel gas according to claim 7, characterized in that, A rod (85) extends outward from the end of the second convex ring (82) away from the slide (83). When the rod (85) contacts and connects with the sealing cover (92), the sealing cover (92) separates from the connecting sleeve (91).

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