Sumar tank for detecting MVOC (Molecular Volatile Organic Compound)

Abstract

The utility model belongs to the technical field of Suma tanks, and particularly relates to a Suma tank for detecting MVOC, which comprises a tank body, a connecting pipe with an electromagnetic valve is fixedly connected to the top of the tank body, and a leakage alarm mechanism is mounted on the outer side of the connecting pipe at the top of the tank body in a covering manner; the leakage alarm mechanism comprises a sealing box, the sealing box fixedly sleeves the outer sides of the connecting pipe and the electromagnetic valve, the sealing box is fixedly connected with the tank body, partition plates are symmetrically arranged on the outer side of the connecting pipe in the sealing box, the partition plates are fixedly connected with the sealing box and the tank body, guide pipes are symmetrically arranged on the opposite outer sides of the two partition plates, and one ends of the guide pipes penetrate through the partition plates; by means of the leakage alarm mechanism, when leakage occurs, leaked gas can push the piston to move upwards, the positive electrode piece and the negative electrode piece are attached, the buzzer is powered on to make a sound, workers are warned, meanwhile, the leaked gas is intercepted, and the situation that a gas path entering the tank body is polluted, so that a system cannot work normally, and the service life of equipment is affected can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of suma can technology, and in particular to a suma can for MVOC detection. Background Technology

[0002] As a professional air sampling container for collecting and storing VOCs (volatile organic compounds), the SUMMA canister is widely used in large-volume VOCs sampling of ambient air and indoor air, as well as as a standard gas storage device in online atmospheric monitoring systems.

[0003] Taking the patent with publication number CN217542545U as an example, the SUMMA canister disclosed in this patent exhibits outstanding performance in sampling accuracy. Its advantage lies in the fact that the gas sample does not come into contact with the inner metal surfaces of the canister body, sampling tube, or valve body throughout the entire flow path. The gas sample is protected by a protective film throughout the entire flow path, which greatly enhances the stability of the gas sample and significantly improves the accuracy of the sampling results.

[0004] However, in practical applications, the diverse range of gas species analyzed makes the system highly susceptible to external interference. The specific process involves the raw gas flowing from the SUMMA tank undergoing purification and cooling via a cold well to achieve gas separation, followed by data analysis using chromatography and mass spectrometry. However, the device described in the aforementioned patent application has significant shortcomings, namely, a lack of effective leak prevention and alarm functions. If a leak occurs at the inlet, the gas path will be contaminated, leading to system malfunction or even equipment damage. This undoubtedly causes numerous problems for related work, severely impacting work efficiency and equipment lifespan. Utility Model Content

[0005] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A Summa canister for MVOC detection includes a canister body, a connecting pipe with a solenoid valve fixedly connected to the top of the canister body, a leakage alarm mechanism installed on the outside of the connecting pipe on the top of the canister body, and a movable component provided below the canister body.

[0008] The leakage alarm mechanism includes a sealed box, which is fixedly sleeved on the outside of the connecting pipe and the solenoid valve, and is fixedly connected to the tank. The sealed box is symmetrically provided with partitions on the outside of the connecting pipe, and the partitions are fixedly connected to the sealed box and the tank. The two partitions are symmetrically provided with conduits on their opposite outer sides, one end of the conduit penetrating the partition, and the other end of the conduit communicating with a connecting cylinder. A piston is provided inside the connecting cylinder, and a spring is provided at the bottom of the piston.

[0009] As an improved technical solution, the leakage alarm mechanism further includes a positive electrode plate, which is embedded in the top of the piston. A negative electrode plate adapted to the positive electrode plate is embedded in the top of the connecting cylinder. A box is symmetrically arranged in the top of the sealed box, and a battery and a buzzer are arranged in the box. A through groove is opened in the top of the connecting cylinder.

[0010] As an improved technical solution, both the positive and negative electrode plates are electrically connected to the battery, and the buzzer is connected in series with the battery, the positive electrode plate, and the negative electrode plate via wires.

[0011] As an improved technical solution, a sealing ring is provided on the outer side of the piston, and a sealing plug is provided on the top of the piston, the sealing plug being adapted to the through groove.

[0012] As an improved technical solution, a telescopic rod is connected to the bottom of the piston, and a bracket is connected to the lower end of the telescopic rod, with the bracket installed inside the upper opening of the conduit.

[0013] As an improved technical solution, the movable component includes a movable base, with universal wheels rectangularly distributed at the bottom of the movable base, and a sliding groove opened at the top of the movable base. A bidirectional screw is rotatably installed in the sliding groove, with one end of the bidirectional screw extending to the outside of the movable base. A threaded slider is symmetrically sleeved on the outside of the bidirectional screw, and the slider is located in the sliding groove. A clamping plate is connected to the top of the movable base at the upper end of the slider, and the clamping plate is arc-shaped.

[0014] As an improved technical solution, the inner wall of the clamping plate is provided with several anti-slip strips, the top of the slider is equipped with an installation block, and the installation block is T-shaped. The side wall of the clamping plate is provided with an installation groove that matches the installation block. One side of the installation block is threaded with a bolt that passes through the installation block, and one end of the bolt is inserted into a hole opened in the inner wall of the installation groove.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are:

[0016] 1. This utility model, through the setting of a leakage alarm mechanism, allows the leaking gas to enter the connecting cylinder when a leak occurs, thereby gradually increasing the internal pressure and pushing the piston upward until the positive electrode plate and the negative electrode plate are in contact, thereby energizing the buzzer and emitting a sound to alert the surrounding personnel. At the same time, it can also intercept the leaking gas, preventing it from spreading to the surrounding area and avoiding contamination of the gas path entering the tank, which could cause the system to malfunction or even damage the equipment and affect its service life.

[0017] 2. The movable component of this utility model can be adapted to clamp and fix different sizes of Summa cans, and can be easily moved to a designated position for sampling operations. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of a suma canister for MVOC detection according to this utility model.

[0020] Figure 2 This is a partial cross-sectional structural diagram of the sealed box of a Summa can for MVOC detection according to this utility model.

[0021] Figure 3 This is a schematic diagram of the structure between the piston and the telescopic rod of a Summa can for MVOC detection according to this utility model.

[0022] Figure 4 This is a schematic diagram of the structure between the clamping plate and the bidirectional screw of a suma can for MVOC detection according to this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Tank body; 2. Connecting pipe; 3. Solenoid valve; 4. Sealing box; 5. Partition plate; 6. Conduit; 7. Connecting cylinder; 8. Piston; 9. Sealing plug; 10. Positive electrode plate; 11. Negative electrode plate; 12. Telescopic rod; 13. Bracket; 14. Spring; 15. Box body; 16. Battery; 17. Buzzer; 18. Movable seat; 19. Caster wheel; 20. Slide rail; 21. Bidirectional screw; 22. Slider; 23. Clamping plate; 24. Mounting block; 25. Bolt. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0028] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0029] like Figure 1 and Figure 3 As shown in the figure, this embodiment provides a SUMMA can for MVOC detection, including a can body 1. A connecting pipe 2 with a solenoid valve 3 is fixedly connected to the top of the can body 1. A leakage alarm mechanism is installed on the outside of the connecting pipe 2 on the top of the can body 1. A movable component is provided below the can body 1. The leakage alarm mechanism includes a sealing box 4, which is fixedly sleeved on the outside of the connecting pipe 2 and the solenoid valve 3. The sealing box 4 is fixedly connected to the can body 1. A partition 5 is symmetrically arranged inside the sealing box 4 on the outside of the connecting pipe 2. The partition 5 is fixedly connected to the sealing box 4 and the can body 1. A conduit 6 is symmetrically arranged on the opposite outer sides of the two partitions 5. One end of the conduit 6 passes through the partition 5, and the other end of the conduit 6 is connected to a connecting cylinder 7. A piston 8 is provided inside the connecting cylinder 7, and a spring 14 is provided at the bottom of the piston 8.

[0030] In this example, the leakage alarm mechanism also includes a positive electrode plate 10, which is embedded in the top of the piston 8. A negative electrode plate 11 adapted to the positive electrode plate 10 is embedded in the top of the connecting cylinder 7. A box 15 is symmetrically arranged in the top of the sealed box 4. A battery 16 and a buzzer 17 are arranged in the box 15. A through groove is opened in the top of the connecting cylinder 7 so that when a leak occurs at the connecting pipe 2 of the equipment, the positive electrode plate 10 and the negative electrode plate 11 can be driven to stick together, thereby triggering the buzzer 17 to work and sound an alarm, thereby alerting the surrounding staff that the equipment has leaked so that it can be repaired in time.

[0031] In this example, both the positive electrode 10 and the negative electrode 11 are electrically connected to the battery 16. The buzzer 17 is connected in series with the battery 16, the positive electrode 10, and the negative electrode 11 via wires so that when the positive electrode 10 and the negative electrode 11 are in contact, a circuit is formed to supply power to the buzzer 17.

[0032] In this example, a sealing ring is fitted on the outside of the piston 8, and a sealing plug 9 is provided on the top of the piston 8. The sealing plug 9 is adapted to the through groove to improve the sealing between the piston 8 and the connecting cylinder 7. The setting of the sealing plug 9 further improves the sealing between the piston 8 and the connecting cylinder 7.

[0033] In this example, the piston 8 is connected to a telescopic rod 12 at its bottom, and a bracket 13 is connected to the lower end of the telescopic rod 12. The bracket 13 is installed inside the upper opening of the guide tube 6 to support and guide the piston 8, so as to make its movement stable.

[0034] like Figure 1 and Figure 4 As shown in the example, the moving component includes a moving base 18. The bottom of the moving base 18 is provided with rectangular casters 19. In this example, the casters 19 are equipped with brake pads. A groove 20 is provided on the top of the moving base 18. A bidirectional screw 21 is rotatably mounted within the groove 20, with one end of the bidirectional screw 21 extending to the outside of the moving base 18. A threaded slider 22 is symmetrically fitted on the outside of the bidirectional screw 21, and the slider 22 is located within the groove 20. A clamping plate 23 is connected to the top of the moving base 18 at the upper end of the slider 22. The clamping plate 23 is arc-shaped to facilitate the adjustment of the position of the Suma canister, making it easy to move to a designated location for sampling. It can also be used with canisters 1 of different diameters, making it widely applicable.

[0035] In this example, the inner wall of the clamping plate 23 is provided with several anti-slip strips, and the top of the slider 22 is equipped with an installation block 24, which is T-shaped. The side wall of the clamping plate 23 is provided with an installation groove that fits the installation block 24. One side of the installation block 24 is threaded with a bolt 25 that passes through the installation block 24, and one end of the bolt 25 is inserted into the insertion hole opened in the inner wall of the installation groove to increase the sealing between the clamping plate 23 and the tank 1. The installation block 24 can limit and guide the clamping plate 23, and the bolt 25 facilitates the disassembly, replacement and maintenance of the clamping plate 23.

[0036] During use, when a leak occurs at connecting pipe 2, the leaked gas will enter connecting cylinder 7 through conduit 6, increasing the gas pressure inside connecting cylinder 7. This will push piston 8 upward within connecting cylinder 7, simultaneously causing piston 8 to move sealing plug 9 and positive electrode plate 10 synchronously. Sealing plug 9 will insert into the through groove, and positive electrode plate 10 will gradually come into contact with negative electrode plate 11, forming a closed loop in their series circuit. This will allow battery 16 to power buzzer 17, causing buzzer 17 to sound, alerting nearby personnel to the equipment leak and facilitating timely repair and maintenance. Furthermore, the sealing ring on the outside of piston 8 and the sealing plug 9 will ensure proper sealing between piston 8 and connecting cylinder 7. The system forms two seals, improving the sealing effect between the connecting cylinder 7 and the piston 8. This ensures that leaked gas is trapped in the space between the sealing box 4 and the two partitions 5, as well as inside the connecting cylinder 7, preventing leakage to the outside. It also prevents contamination of the gas path entering the tank 1, which could cause the system to malfunction or even damage the equipment, affecting its lifespan. When the position of the SUMMA tank needs to be adjusted to a designated location for sampling, the tank 1 can be placed on top of the tank 1. Twisting the bidirectional screw 21 drives the two sliders 22 to move the clamping plates 23, causing the two clamping plates 23 to move inward relative to each other, thereby clamping and fixing the tank 1. Then, the universal wheels 19 can be used to move it to the designated position for convenient sampling operations. The system is easy to use.

[0037] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A Summa canister for MVOC detection, comprising a canister body (1), characterized in that: The top of the tank (1) is fixedly connected to a connecting pipe (2) with a solenoid valve (3), and a leakage alarm mechanism is installed on the outside of the connecting pipe (2) on the top of the tank (1). A moving component is provided below the tank (1). The leakage alarm mechanism includes a sealing box (4), which is fixedly sleeved on the outside of the connecting pipe (2) and the solenoid valve (3). The sealing box (4) is fixedly connected to the tank body (1). The sealing box (4) is symmetrically provided with partitions (5) on the outside of the connecting pipe (2). The partitions (5) are fixedly connected to the sealing box (4) and the tank body (1). The two partitions (5) are symmetrically provided with conduits (6) on their opposite outer sides. One end of the conduit (6) passes through the partition (5), and the other end of the conduit (6) is connected to a connecting cylinder (7). The connecting cylinder (7) is provided with a piston (8), and the bottom of the piston (8) is provided with a spring (14).

2. The suma canister for MVOC detection according to claim 1, characterized in that: The leakage alarm mechanism also includes a positive electrode plate (10), which is embedded in the top of the piston (8). A negative electrode plate (11) adapted to the positive electrode plate (10) is embedded in the top of the connecting cylinder (7). A box body (15) is symmetrically provided in the top of the sealed box (4). A battery (16) and a buzzer (17) are provided in the box body (15). A through groove is opened in the top of the connecting cylinder (7).

3. The suma canister for MVOC detection according to claim 2, characterized in that: The positive electrode (10) and negative electrode (11) are both electrically connected to the battery (16), and the buzzer (17) is connected in series with the battery (16), the positive electrode (10) and the negative electrode (11) via wires.

4. The suma canister for MVOC detection according to claim 3, characterized in that: A sealing ring is fitted on the outside of the piston (8), and a sealing plug (9) is provided on the top of the piston (8), which is adapted to the through groove.

5. A suma container for MVOC detection according to claim 4, characterized in that: The piston (8) is connected to a telescopic rod (12) at its bottom. The lower end of the telescopic rod (12) is connected to a bracket (13), and the bracket (13) is installed inside the upper opening of the conduit (6).

6. A suma container for MVOC detection according to claim 2, characterized in that: The movable component includes a movable base (18), with universal wheels (19) arranged in a rectangular pattern at the bottom of the movable base (18). A sliding groove (20) is provided at the top of the movable base (18). A bidirectional screw (21) is rotatably installed in the sliding groove (20), and one end of the bidirectional screw (21) extends to the outside of the movable base (18). A threaded slider (22) is symmetrically sleeved on the outside of the bidirectional screw (21), and the slider (22) is located in the sliding groove (20). A clamping plate (23) is connected to the top of the movable base (18) at the upper end of the slider (22), and the clamping plate (23) is arc-shaped.

7. A suma container for MVOC detection according to claim 6, characterized in that: The inner wall of the clamp (23) is provided with several anti-slip strips. The top of the slider (22) is equipped with an installation block (24), and the installation block (24) is T-shaped. The side wall of the clamp (23) is provided with an installation groove that is compatible with the installation block (24). One side of the installation block (24) is threaded with a bolt (25) that passes through the installation block (24), and one end of the bolt (25) is inserted into the insertion hole opened in the inner wall of the installation groove.

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