Safety sampler for chemical production

Abstract

The utility model relates to a safe sampler for chemical production. The safe sampler comprises a cover body assembly and a barrel body assembly, a sealing plug is arranged between the inner bottom of the cover body assembly and the top surface of the barrel body assembly; the cover body assembly is buckled on the barrel body assembly; the cover body assembly comprises a cover cap, and the cover cap is provided with an air inlet / outlet and a liquid adding port; the barrel assembly comprises a sampling barrel, and a liquid inlet, a gas outlet and a gas inlet are formed in the top surface of the sampling barrel; a funnel-shaped liquid outlet is formed in the bottom of the sampling barrel, and a stop valve is arranged at the liquid outlet. The safe sampler for chemical production has the following advantages that the sampling barrel can be closed, then the liquid outlet pipe of a reaction kettle is slowly pulled out, the liquid adding opening and the liquid adding channel are used for receiving liquid so that liquid can be prevented from dropping outside, the opening in the sampling barrel is closed after rotation, volatilization of liquid or gas in the sampling barrel is avoided, and the safe sampler is safer and more environmentally friendly.

Description

Technical Field

[0001] This utility model relates to the field of chemical safety technology, and in particular to a chemical production safety sampler. Background Technology

[0002] In chemical production, it is necessary to sample chemical solvents. By collecting representative samples, quality analysis, performance testing, and process control can be carried out. Sampling can be used to determine the qualification of raw materials, the quality of intermediates in the process, and the quality of the final product.

[0003] When sampling in chemical production, sampling is usually carried out using a sampling tube pre-installed on the side wall of the chemical solvent container, in conjunction with the sampling container. Since chemical solvents usually have flammable, explosive, and toxic properties, safety is particularly important during sampling.

[0004] Current chemical sampling methods use pre-installed sampling tubes in conjunction with specially designed containers (usually equipped with sealing valves at the container openings). While this method can achieve sampling and the sealing valve can seal the container inlet to prevent solvent evaporation and leakage after sampling, a certain gap still exists between the sealing valve and the container inlet. During the sampling process, if solvent gets trapped between the sealing valve and the container inlet, the sealing valve cannot completely seal off the trapped solvent, potentially leading to a small amount of solvent evaporation and leakage. This compromises the safety and environmental performance of the sampling process.

[0005] Therefore, a chemical production safety sampler was designed to solve the above problems. Summary of the Invention

[0006] A safety sampler for chemical production includes a cover assembly and a cylindrical assembly; a sealing plug is provided between the inner bottom of the cover assembly and the top surface of the cylindrical assembly; the cover assembly is fastened to the cylindrical assembly;

[0007] The cover assembly includes a cap, which has an air inlet / outlet and a liquid inlet.

[0008] The cylindrical assembly includes a sampling cylinder, the top surface of which is provided with a liquid inlet, an air outlet, and an air vent; the bottom of the sampling cylinder has a funnel-shaped liquid outlet, which is provided with a shut-off valve.

[0009] The sealing plug is a cylindrical compression-type elastic sealing plug, and the sealing plug has a liquid filling channel and a venting channel that are open vertically; the liquid filling channel is directly opposite the liquid filling port, and the venting channel is directly opposite the venting port.

[0010] When closed, the liquid filling channel is directly opposite the liquid filling port, and the air inlet / outlet channel is directly opposite the air inlet / outlet; the liquid filling channel and the air inlet / outlet channel are completely offset from the liquid inlet, air outlet and air inlet.

[0011] When adding liquid, the upper opening of the liquid adding channel is directly opposite the liquid adding port, and the lower opening is directly opposite the liquid inlet. The liquid adding port, the liquid adding channel, and the liquid inlet are connected. The upper opening of the air inlet and exhaust channel is directly opposite the air inlet and exhaust port, and the lower opening is directly opposite the exhaust port. The air inlet and exhaust port, the air inlet and exhaust channel, and the exhaust port are connected.

[0012] When draining, the upper opening of the liquid filling channel is directly opposite the liquid filling port, and the lower opening is offset from the liquid inlet. The liquid filling port, the liquid filling channel, and the liquid inlet are not connected. The upper opening of the air intake and exhaust channel is directly opposite the air intake and exhaust port, and the lower opening is directly opposite the air inlet. The air intake and exhaust port, the air intake and exhaust channel, and the air inlet are connected.

[0013] Preferably, the cap has a downward pointing arrow on its periphery; the liquid dispensing cylinder has three indicator marks on its periphery, namely the liquid adding position, the liquid discharging position, and the closing position;

[0014] When the indicator arrow points to the closed position, the liquid filling channel is directly opposite the liquid filling port, and the air intake and exhaust channel is directly opposite the air intake and exhaust port; the liquid filling channel and the air intake and exhaust channel are completely offset from the liquid inlet, air outlet and air inlet.

[0015] When the indicator arrow points to the liquid filling position, the upper opening of the liquid filling channel is directly opposite the liquid filling port, and the lower opening is directly opposite the liquid inlet. The liquid filling port, the liquid filling channel, and the liquid inlet are connected. The upper opening of the air intake and exhaust channel is directly opposite the air intake and exhaust port, and the lower opening is directly opposite the air outlet. The air intake and exhaust port, the air intake and exhaust channel, and the air outlet are connected.

[0016] When the indicator arrow points to the drain position, the upper opening of the liquid filling channel is directly opposite the liquid filling port, and the lower opening is offset from the liquid inlet. The liquid filling port, the liquid filling channel, and the liquid inlet are not connected. The upper opening of the air intake and exhaust channel is directly opposite the air intake and exhaust port, and the lower opening is directly opposite the air inlet. The air intake and exhaust port, the air intake and exhaust channel, and the air inlet are connected.

[0017] Preferably, activated carbon with adsorption function is provided in the intake and exhaust channels.

[0018] Preferably, the liquid addition channel is an inverted conical cylinder that is wider at the top and narrower at the bottom.

[0019] Preferably, the shut-off valve is an electrically controlled valve.

[0020] The beneficial effects of this utility model are:

[0021] The chemical production safety sampler described in this utility model has the following advantages:

[0022] 1. After sampling, the sampling tube can be closed and the liquid outlet pipe of the reaction vessel can be slowly pulled out. The liquid inlet and liquid inlet channel can prevent liquid from dripping outside. After rotation, the openings on the sampling tube are all sealed to prevent the evaporation of liquid or gas inside the sampling tube, which is safer and more environmentally friendly.

[0023] 2. When the sample is removed from the sampling tube, the activated carbon at the air inlet adsorbs the particles, preventing them from overflowing and ensuring safety. Attached Figure Description

[0024] Figure 1 A three-dimensional view of a safety sampler for chemical production.

[0025] Figure 2 A front view of a safety sampler used in chemical production.

[0026] Figure 3 Left view of a chemical production safety sampler;

[0027] Figure 4 Right view of a chemical production safety sampler;

[0028] Figure 5 This is a schematic diagram of a chemical production safety sampler in a closed state.

[0029] Figure 6 This is a schematic diagram of a chemical production safety sampler in the liquid addition state.

[0030] Figure 7 This is a schematic diagram of a chemical production safety sampler in its draining state.

[0031] Figure 8 This is a structural schematic diagram of the cylindrical assembly;

[0032] Figure 9 This is a structural schematic diagram of the cover assembly;

[0033] Figure 10 This is a schematic diagram of the sealing plug.

[0034] in:

[0035] 1-Sampling cylinder; 2-Stop valve; 3-Liquid filling position; 4-Liquid draining position; 5-Cap; 6-Liquid filling port; 7-Inlet and outlet ports; 8-Indicator arrow; 9-Outlet port; 10-Liquid inlet; 11-Air inlet; 12-Sealing plug; 13-Liquid filling channel; 14-Inlet and outlet channels; 15-Close position; Detailed Implementation

[0036] Implementation, for example Figures 1-4As shown, a chemical production safety sampler includes a cover assembly and a cylindrical assembly; a sealing plug 12 is provided between the inner bottom of the cover assembly and the top surface of the cylindrical assembly; the cover assembly is fastened to the cylindrical assembly;

[0037] like Figure 9 As shown, the cover assembly includes a cap 5, which has an air inlet / outlet 7 and a liquid inlet 6. The cap 5 has downward-pointing indicator arrows 8 on its periphery.

[0038] like Figure 8 As shown, the cylinder assembly includes a sampling cylinder 1, the top surface of which is provided with a liquid inlet 10, an air outlet 9 and an air inlet 11; the bottom of the sampling cylinder 1 has a funnel-shaped liquid outlet, and the liquid outlet is provided with a shut-off valve 2; the circumference of the sampling cylinder 1 is provided with three indicator marks, namely liquid addition position 3, liquid discharge position 4 and closed position 15;

[0039] like Figure 10 As shown, the sealing plug 12 is a cylindrical compression type elastic sealing plug. The sealing plug 12 has a liquid filling channel 13 and a vertically penetrating air inlet and outlet channel 14. The liquid filling channel 13 is directly opposite the liquid filling port 6, and the air inlet and outlet channel 14 is directly opposite the air inlet and outlet port 7.

[0040] like Figure 5 As shown, when the indicator arrow 8 points to the closed position 15, the liquid filling channel 13 is directly opposite the liquid filling port 6, and the air intake and exhaust channel 14 is directly opposite the air intake and exhaust port 7; the liquid filling channel 13 and the air intake and exhaust channel 14 are all offset from the liquid inlet 10, the air outlet 9 and the air inlet 11.

[0041] like Figure 2 and Figure 6 As shown, when the indicator arrow 8 points to the liquid filling position 3, the upper opening of the liquid filling channel 13 is directly opposite the liquid filling port 6, and the lower opening is directly opposite the liquid inlet 10. The liquid filling port 6, the liquid filling channel 13, and the liquid inlet 10 are connected. The upper opening of the air intake and exhaust channel 14 is directly opposite the air intake and exhaust port 7, and the lower opening is directly opposite the air outlet 9. The air intake and exhaust port 7, the air intake and exhaust channel 14, and the air outlet 9 are connected.

[0042] like Figure 7 As shown, when the indicator arrow 8 points to the drain position 4, the upper opening of the liquid filling channel 13 is directly opposite the liquid filling port 6, and the lower opening is offset from the liquid inlet 10. The liquid filling port 6, the liquid filling channel 13, and the liquid inlet 10 are not connected. The upper opening of the air intake and exhaust channel 14 is directly opposite the air intake and exhaust port 7, and the lower opening is directly opposite the air inlet 11. The air intake and exhaust port 7, the air intake and exhaust channel 14, and the air inlet 11 are connected.

[0043] The intake and exhaust channels 14 are equipped with activated carbon for adsorption.

[0044] The liquid addition channel 13 is an inverted conical cylinder that is wider at the top and narrower at the bottom.

[0045] The shut-off valve 2 is an electrically controlled valve.

[0046] How to use:

[0047] During sampling, the liquid outlet pipe of the reactor is inserted into the liquid inlet 6 of this application. When the cover assembly is rotated and the indicator arrow 8 is pointed to the liquid filling position 3, the upper opening of the liquid filling channel 13 is directly opposite the liquid inlet 6 and the lower opening is directly opposite the liquid inlet 10. The liquid flows from the reactor and passes through the liquid inlet 6, the liquid filling channel 13 and the liquid inlet 10 in sequence, and enters the sampling cylinder 1. At the same time, the upper opening of the air inlet and exhaust channel 14 is directly opposite the air inlet and exhaust port 7 and the lower opening is directly opposite the exhaust port 9. The air inlet and exhaust port 7, the air inlet and exhaust channel 14 and the exhaust port 9 are connected, so that the gas in the cylinder can be discharged through the exhaust port 9, the air inlet and exhaust channel 14 and the air inlet and exhaust port 7 in sequence when liquid is added.

[0048] Sampling is complete. At this point, pull out part of the liquid outlet tube, but not all of it. Rotate the cap assembly. When the indicator arrow 8 points to the closed position 15, the liquid filling channel 13 is directly opposite the liquid filling port 6, and the air inlet / outlet channel 14 is directly opposite the air inlet / outlet 7. The liquid filling channel 13 and the air inlet / outlet channel 14 are completely offset from the liquid inlet 10, the air outlet 9, and the air inlet 11. This prevents residual liquid from the liquid outlet tube from dripping outside or onto workers' hands, and also prevents liquid or gas in the sampling cylinder 1 from evaporating.

[0049] The liquid in the sampling cylinder 1 is poured out for further testing. The cap assembly is rotated, and when the indicator arrow 8 points to the drain position 4, the upper opening of the liquid filling channel 13 is directly opposite the liquid filling port 6, and the lower opening is offset from the liquid inlet 10. The liquid filling port 6, the liquid filling channel 13, and the liquid inlet 10 are not connected. The upper opening of the air inlet and exhaust channel 14 is directly opposite the air inlet and exhaust port 7, and the lower opening is directly opposite the air inlet 11. The gas enters the cylinder body in sequence through the air inlet and exhaust port 7, the air inlet and exhaust channel 14, and the air inlet 11. The shut-off valve 2 is opened, and the liquid in the sampling cylinder 1 can be discharged for the next step of testing, etc.

[0050] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A chemical production safety sampler comprising a cap assembly and a barrel assembly; characterized in that, A sealing plug (12) is arranged between the inner bottom of the cover assembly and the top surface of the barrel assembly; the cover assembly is buckled on the barrel assembly; The cover assembly comprises a cap (5), and the cap (5) is provided with an air inlet and outlet (7) and a liquid adding opening (6); The barrel assembly comprises a sampling barrel (1), and the top surface of the sampling barrel (1) is provided with a liquid inlet (10), an air outlet (9) and an air inlet (11); the bottom of the sampling barrel (1) is provided with a funnel-shaped liquid outlet, and the liquid outlet is provided with a stop valve (2); The sealing plug (12) is a cylindrical compression type elastic sealing plug, and the sealing plug (12) is provided with a liquid adding channel (13) and an air inlet and outlet channel (14) penetrating through the upper and lower portions; the liquid adding channel (13) is opposite to the liquid adding opening (6), and the air inlet and outlet channel (14) is opposite to the air inlet and outlet (7); When closed, the liquid adding channel (13) is opposite to the liquid adding opening (6), and the air inlet and outlet channel (14) is opposite to the air inlet and outlet (7); the liquid adding channel (13) and the air inlet and outlet channel (14) are all staggered with the liquid inlet (10), the air outlet (9) and the air inlet (11); When liquid is added, the upper opening of the liquid adding channel (13) is opposite to the liquid adding opening (6), and the lower opening is opposite to the liquid inlet (10); the liquid adding opening (6), the liquid adding channel (13) and the liquid inlet (10) are communicated; the upper opening of the air inlet and outlet channel (14) is opposite to the air inlet and outlet (7), and the lower opening is opposite to the air outlet (9); the air inlet and outlet (7), the air inlet and outlet channel (14) and the air outlet (9) are communicated; When liquid is discharged, the upper opening of the liquid adding channel (13) is opposite to the liquid adding opening (6), and the lower opening is staggered with the liquid inlet (10); the liquid adding opening (6), the liquid adding channel (13) and the liquid inlet (10) are not communicated; the upper opening of the air inlet and outlet channel (14) is opposite to the air inlet and outlet (7), and the lower opening is opposite to the air inlet (11); the air inlet and outlet (7), the air inlet and outlet channel (14) and the air inlet (11) are communicated.

2. The chemical production safety sampler of claim 1, wherein, The cap (5) is provided with a downward indicating arrow (8) on the periphery; the sampling barrel (1) is provided with three indicating marks on the periphery, which are a liquid adding gear (3), a liquid discharging gear (4) and a closing gear (15); When the indicating arrow (8) indicates the closing gear (15), the liquid adding channel (13) is opposite to the liquid adding opening (6), and the air inlet and outlet channel (14) is opposite to the air inlet and outlet (7); the liquid adding channel (13) and the air inlet and outlet channel (14) are all staggered with the liquid inlet (10), the air outlet (9) and the air inlet (11); When the indicating arrow (8) indicates the liquid adding gear (3), the upper opening of the liquid adding channel (13) is opposite to the liquid adding opening (6), and the lower opening is opposite to the liquid inlet (10); the liquid adding opening (6), the liquid adding channel (13) and the liquid inlet (10) are communicated; the upper opening of the air inlet and outlet channel (14) is opposite to the air inlet and outlet (7), and the lower opening is opposite to the air outlet (9); the air inlet and outlet (7), the air inlet and outlet channel (14) and the air outlet (9) are communicated; When the indicating arrow (8) indicates to the liquid discharging position (4), the upper opening of the liquid adding channel (13) is opposite to the liquid adding opening (6), the lower opening and the liquid inlet (10) are staggered, the liquid adding opening (6), the liquid adding channel (13) and the liquid inlet (10) are not communicated; the upper opening of the air inlet and outlet channel (14) is opposite to the air inlet and outlet (7), the lower opening is opposite to the air inlet (11), the air inlet and outlet (7), the air inlet and outlet channel (14) and the air inlet (11) are communicated.

3. The chemical production safety sampler of claim 1, wherein, The air inlet and outlet channel (14) is provided with activated carbon for adsorption.

4. The chemical production safety sampler of claim 1, wherein, The liquid adding channel (13) is an inverted conical cylinder with large upper part and small lower part.

5. The chemical production safety sampler of claim 1, wherein, The stop valve (2) is an electric control valve.

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