CN116297629A

CN116297629A - Safety detection device and detection method for dangerous chemicals

Info

Publication number: CN116297629A
Application number: CN202310383876.8A
Authority: CN
Inventors: 窦娜; 张建东
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-06-23

Abstract

The invention discloses a safety detection device and a detection method for dangerous chemicals, and belongs to the technical field of chemical safety monitoring. Including the box, fixed mounting has the alarm lamp on the box, still includes: the baffle is fixedly arranged in the box body; the reaction tank and the first storage tank are arranged in the box body, connecting pipes are fixedly arranged on the reaction tank and the first storage tank, and a spherical transfer station is commonly arranged between the two connecting pipes; a first push plate and a second push plate are slidably arranged on the partition plate, the first push plate and the second push plate are both abutted against two sides of the spherical transfer station, and two electrode plates which can be contacted with each other are fixedly arranged between the first push plate and the inner wall of the box body; when the internal air pressure of the reaction tank is large, the spherical transfer station pushes the first pushing plate and the second pushing plate on two sides outwards, and after the electrode plates on the first pushing plate are contacted with the electrode plates on the inner wall of the box body, a circuit path is formed to supply power to the alarm lamp, and the alarm lamp warns and reminds an operator and carries out corresponding treatment.

Description

Safety detection device and detection method for dangerous chemicals

Technical Field

The invention relates to the technical field of safety detection of chemicals, in particular to a safety detection device and a safety detection method for dangerous chemicals.

Background

The chemicals refer to pure matters and mixtures composed of various elements, and among the chemical products, some have the properties of poisoning, corrosion, explosion, combustion supporting and the like, and extremely toxic chemical products and other chemical products which are harmful to human bodies, facilities and the environment are called dangerous chemical products.

Vinyl chloride is an important monomer applied to high molecular chemical industry and is mainly used for manufacturing homopolymers and copolymers of polyvinyl chloride. It can also be copolymerized with vinyl acetate, butadiene, etc., used as comonomer of various polymers, important raw material of plastics industry, analgesic and metal degreasing agent, and can be used as extractant, dry cleaning agent and refrigerant.

With the continuous development of dry cleaning industry, the dosage of vinyl chloride is also increasing. Vinyl chloride has certain toxic effect on human body, chronic poisoning can cause the inhibition of functional nerve centers, and long-term damage to heart, liver, kidney and other organs, and serious poisoning can cause death, so that the detection of the content of vinyl chloride in the environment is very important.

When the existing detection device detects, no alarm device is used for reminding operators when the gas pressure is too high, and personnel casualties are easily caused by explosion.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, when the gas pressure is too high, no alarm device reminds operators and personnel casualties are caused by explosion easily, and provides a safety detection device and a detection method for dangerous chemicals.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

a safety inspection device for dangerous chemicals, includes the box, fixed mounting has the alarm lamp on the box, still includes: the partition plate is fixedly arranged in the box body and is used for separating the space in the box body; the reaction tank and the first storage tank are arranged in the box body, connecting pipes are fixedly arranged on the reaction tank and the first storage tank, and a spherical transfer station is commonly arranged between the two connecting pipes; the first pushing plate and the second pushing plate are slidably arranged on the partition plate and are abutted to two sides of the spherical transfer station, and two electrode plates which can be in contact with each other are fixedly arranged between the first pushing plate and the inner wall of the box body.

Preferably, the spherical transfer station comprises two circular plates fixedly installed with the connecting pipe, an arc plate and an air bag sheet are uniformly installed between the two circular plates, and the arc plate and the air bag sheet are arranged at intervals.

In order to reset the movable first pushing plate and the movable second pushing plate, preferably, a sliding rail is fixedly arranged on the partition plate, the first pushing plate and the second pushing plate are respectively and slidably arranged on the sliding rail, a limiting block is fixedly arranged at one end, close to the spherical transfer station, of the sliding rail, and springs are fixedly connected between the two limiting blocks and the first pushing plate and the second pushing plate respectively.

In order to puncture the reaction tank for pressure relief, preferably, further comprising: the first gear and the second gear are coaxially arranged, the first gear and the second gear are respectively connected with a first rack and a second rack in a meshed mode, the first rack is fixedly arranged on the second push plate, and the second rack is slidably arranged on the partition plate; and a conical block is fixedly arranged at one end of the second rack, which is close to the reaction tank.

In order to filter the discharged gas, further, the method further comprises: the fan is fixedly arranged on the partition board, the fan is connected with the alarm lamp in series, the output end of the fan is fixedly provided with a discharge pipe, and an air filter is fixedly arranged on the discharge pipe.

For cooling the inside of the reaction tank, it is preferable that: the second storage tank, be connected with the connecting pipe equally between second storage tank and the first storage tank, fixedly connected with back flow between second storage tank and the retort, fixedly mounted with pump body on the back flow, the pump body is established ties with the alarm lamp.

In order to improve the uniformity of cooling in the reaction tank, further, the interior fixed mounting of reaction tank has the annular pipe, evenly install the shower nozzle on the annular pipe, annular pipe and back flow fixed mounting.

For placing the reaction tank, it is preferable that: the support plate is slidably arranged in the box body, and a placing groove matched with the reaction tank is formed in the support plate.

In order to improve the stability of the reaction tank during placement, further, an L-shaped limiting rod is rotatably installed on the groove wall of the placement groove, and a roller is rotatably installed at one end, close to the reaction tank, of the L-shaped limiting rod.

A safety detection method for dangerous chemicals comprises the following operation steps:

step 1: evaporating the dry cleaning agent at high temperature to form gas;

step 2: detecting the content of chloroethylene in the gas;

step 3: when the gas pressure is too high, the device gives an alarm and automatically decompresses, so that explosion is prevented.

Compared with the prior art, the invention provides a safety detection device and a detection method for dangerous chemicals, which have the following beneficial effects:

1. according to the safety detection device for dangerous chemicals, when the internal air pressure of the reaction tank is large, in order to prevent explosion, the spherical transfer station pushes the first pushing plate and the second pushing plate on two sides outwards, an electrode plate on the first pushing plate is contacted with an electrode plate on the inner wall of the box body to form a circuit path to supply power to the alarm lamp, and the alarm lamp alarms and reminds operators and carries out corresponding treatment; simultaneously, the first rack sliding along with the second push plate displaces and drives the first gear in meshed connection to rotate, and the rotating first gear transmits the rotating force to the second gear through the rotating shaft, so that the second gear drives the second rack in meshed connection to descend, and the conical block punctures a sealing film on the reaction tank, so that gas in the reaction tank is quickly released, and explosion caused by extrusion is avoided;

2. this a safety inspection device for dangerous chemicals, quick release's gas is through fan discharge box, reduces the atmospheric pressure in the box. After the gas is filtered by an air filter on the discharge pipe, toxic substances in the gas are reduced, and air pollution is avoided;

3. this a safety inspection device for dangerous chemicals, after two electrode slices are close to each other, the pump body in the back flow is same circular telegram work in with the water in the second storage jar carry to the retort in, cool down the temperature in the retort.

Drawings

FIG. 1 is a schematic diagram of a safety inspection device for hazardous chemicals according to the present invention;

FIG. 2 is a schematic view of a second view angle structure of a safety inspection device for hazardous chemicals according to the present invention;

FIG. 3 is a schematic diagram showing the connection structure of a reaction tank, a first storage tank and a second storage tank of a safety detection device for dangerous chemicals according to the present invention;

FIG. 4 is a schematic diagram showing the internal structure of a reaction tank of a safety detection device for hazardous chemicals according to the present invention;

FIG. 5 is a schematic diagram of a pallet structure of a safety inspection device for hazardous chemicals according to the present invention;

FIG. 6 is a schematic view of the safety inspection device for hazardous chemicals according to the present invention, which is shown in FIG. 1;

fig. 7 is a schematic structural diagram of a part B in fig. 2 of a safety detection device for hazardous chemicals according to the present invention.

In the figure: 1. a case; 101. a sampling cover; 102. a door; 2. an alarm lamp; 3. a reaction tank; 4. a first storage tank; 5. a connecting pipe; 6. a partition plate; 7. a spherical transfer station; 701. a circular plate; 702. an arc-shaped plate; 703. an airbag sheet; 8. a first push plate; 9. an electrode sheet; 10. a first gear; 11. a second gear; 12. a first rack; 13. a second rack; 14. a conical block; 15. a slide rail; 16. a limiting block; 17. a spring; 18. a blower; 19. a discharge pipe; 20. an air filter; 21. a second storage tank; 22. a return pipe; 23. a pump body; 24. an annular tube; 25. a spray head; 26. a supporting plate; 2601. a placement groove; 27. an L-shaped limit rod; 2701. a roller; 28. and a second push plate.

Description of the embodiments

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Examples

Referring to fig. 1 to 7, a safety inspection device for dangerous chemicals includes a case 1 made of transparent material, and an alarm lamp 2 is fixedly installed on the case 1, and further includes: a partition plate 6 fixedly installed in the case 1, the partition plate 6 for dividing a space in the case 1; the material of baffle 6 is unanimous with box 1, all adopts high transparent acrylic board to make, makes things convenient for operating personnel to observe the inside experimental conditions of box 1. The reaction tank 3 and the first storage tank 4 are arranged in the box body 1, the first storage tank 4 is arranged on the partition plate 6, the connecting pipes 5 are fixedly arranged on the reaction tank 3 and the first storage tank 4, and the spherical transfer station 7 is jointly arranged between the two connecting pipes 5. The inside of the reaction tank 3 has high-temperature heating performance, the dry cleaning agent is heated into gas through the high temperature of the reaction tank 3, and the content of the chloroethylene is measured through the detection of the gas. The first push plate 8 and the second push plate 28 are slidably arranged on the partition plate 6, the first push plate 8 and the second push plate 28 are respectively abutted against two sides of the spherical transfer station 7, and two electrode plates 9 which can be in contact with each other are fixedly arranged between the first push plate 8 and the inner wall of the box body 1.

The reaction tank 3 includes a tank body having an opening at one end and a sealing plate sealed in the opening, and a sealing membrane is fixedly installed on the sealing plate.

The reaction tank 3 filled with dry cleaning agent is placed in the box body 1, the dry cleaning agent in the reaction tank 3 is evaporated at high temperature, and gas formed by evaporation is expanded and then sequentially enters the first storage tank 4 for storage through the connecting pipe 5 and the spherical transfer station 7.

The upper part of the box body 1 is also hinged with a sampling cover 101 which can be opened and closed in a rotating way, a sampling port and a sampling pipe which is matched with the sampling port are arranged on the first storage tank 4, and a one-way valve is fixedly arranged in the sampling pipe. An operator can collect the sample through an activated carbon adsorption sampling tube, then separate the sample through a GDX-502 chromatographic column, and measure the sample by a flame ionization detector, and quantitatively determine the sample by a retention time qualitative and peak height external standard method.

When the internal air pressure of the reaction tank 3 is large, in order to prevent explosion, the spherical transfer station 7 pushes the first pushing plate 8 and the second pushing plate 28 on two sides outwards, the electrode plate 9 on the first pushing plate 8 is contacted with the electrode plate 9 on the inner wall of the box body 1 to form a circuit path to supply power to the alarm lamp 2, and the alarm lamp 2 warns and reminds operators and carries out corresponding treatment.

Referring to fig. 1, 2 and 6, further, the spherical transfer station 7 includes two circular plates 701 fixedly installed with the connecting pipe 5, an arc plate 702 and an airbag 703 are uniformly installed between the two circular plates 701, and the arc plate 702 and the airbag 703 are spaced apart.

The arc plate 702 is used for fixing the airbag piece 703, and when the rated output is carried out, the airbag piece 703 is in an original state, when the internal pressure of the reaction tank 3 is overlarge, the gas passing through the spherical transfer station 7 is increased, and the airbag piece 703 is forced to expand outwards so as to push the first pushing plate 8 and the second pushing plate 28 on two sides to slide.

Referring to fig. 1, 2 and 6, further, a sliding rail 15 is fixedly installed on the partition board 6, the first push plate 8 and the second push plate 28 are respectively and slidably installed on the sliding rail 15, a limiting block 16 is fixedly installed at one end of the sliding rail 15, which is close to the spherical transfer station 7, and a spring 17 is fixedly connected between the two limiting blocks 16 and the first push plate 8 and the second push plate 28 respectively.

After the alarm is released, the first push plate 8 and the second push plate 28 are reset under the tension of the spring 17.

Referring to fig. 1 and 2 and 7, the safety detection device for dangerous chemicals in the present embodiment further includes: the first gear 10 and the second gear 11 are coaxially arranged, the first gear 10 and the second gear 11 are respectively connected with a first rack 12 and a second rack 13 in a meshed manner, the first rack 12 is fixedly arranged on the second push plate 28, and the second rack 13 is slidably arranged on the partition plate 6; the second rack 13 is fixedly provided with a conical block 14 at one end close to the reaction tank 3.

The first gear 10 and the second gear 11 are jointly arranged on a rotating shaft, a rotating shaft seat for installing the rotating shaft is fixedly arranged on the lower surface of the partition plate 6, and the rotating shaft is rotatably arranged in the rotating shaft seat.

When the second push plate 28 slides, the first rack 12 sliding along with the second push plate 28 displaces and drives the first gear 10 in meshed connection to rotate, and the rotating first gear 10 transmits the rotating force to the second gear 11 through the rotating shaft, so that the second gear 11 drives the second rack 13 in meshed connection to descend, and the conical block 14 pierces the sealing film on the reaction tank 3, so that the gas in the reaction tank 3 is quickly released, and explosion caused by extrusion is avoided.

Referring to fig. 1, the safety detection device for hazardous chemicals in the present embodiment further includes: the fan 18 of fixed mounting on baffle 6, fan 18 and alarm lamp 2 establish ties, and the output fixed mounting of fan 18 has a drain pipe 19, is last fixed mounting air cleaner 20 on the drain pipe 19.

The gas released quickly is discharged out of the box 1 through the fan 18, and the air pressure in the box 1 is reduced. And the gas is filtered by the air filter 20 on the discharge pipe 19, so that toxic substances in the gas are reduced, and the pollution to the air is avoided.

In general, during dry cleaning agent detection, a reaction tank 3 filled with dry cleaning agent is placed in a box body 1, the dry cleaning agent in the reaction tank 3 is evaporated at high temperature, gas formed by evaporation is expanded and sequentially enters a first storage tank 4 through a connecting pipe 5 and a spherical transfer station 7 to be stored, an operator can collect the gas through an activated carbon adsorption sampling pipe and then separate the gas through a GDX-502 chromatographic column, and a flame ionization detector is used for measuring the gas, so that the gas is qualitative in retention time and quantitative in a peak height external standard method.

On the other hand, the first rack 12 sliding along the second push plate 28 displaces and drives the first gear 10 in meshed connection to rotate, the rotating first gear 10 transmits the rotating force to the second gear 11 through the rotating shaft, so that the second gear 11 drives the second rack 13 in meshed connection to descend, the conical block 14 pierces the sealing film on the reaction tank 3, gas in the reaction tank 3 is quickly released, explosion caused by extrusion is avoided, the quickly released gas is discharged out of the box 1 through the fan 18, and the air pressure in the box 1 is reduced. And the gas is filtered by the air filter 20 on the discharge pipe 19, so that toxic substances in the gas are reduced, and the pollution to the air is avoided.

Examples

Referring to fig. 1 to 7, substantially the same as embodiment 1, the whole technical scheme is further optimized on the basis of embodiment 1.

Referring to fig. 1 and 3 and 4, in order to further cool the temperature inside the reaction tank 3. The safety detection device for dangerous chemicals in this embodiment further includes: the second storage tank 21, be connected with connecting pipe 5 equally between second storage tank 21 and the first storage tank 4, fixedly connected with back flow 22 between second storage tank 21 and the retort 3, fixedly mounted with pump body 23 on the back flow 22, pump body 23 and alarm lamp 2 establish ties.

When collecting gas, the first storage tank 4 is originally filled with water, and since vinyl chloride is slightly soluble in water and has a higher density than air, the water in the first storage tank 4 is introduced into the second storage tank 21 through the connecting pipe 5 by the upward air discharge method, so that the progress of collecting gas can be observed.

When the two electrode plates 9 are close to each other, the pump body 23 in the return pipe 22 is electrified to convey the water in the second storage tank 21 into the reaction tank 3, so as to cool the temperature in the reaction tank 3.

Referring to fig. 4, further, an annular pipe 24 is fixedly installed in the reaction tank 3, spray heads 25 are uniformly installed on the annular pipe 24, and the annular pipe 24 and the return pipe 22 are fixedly installed.

The water in the second storage tank 21 enters the annular pipe 24 after passing through the return pipe 22 and is uniformly distributed, and then is sprayed out through the spray head 25, so that cooling dead angles are reduced.

Examples

Referring to fig. 1 to 7, substantially the same as embodiment 2, the whole technical solution is further optimized based on embodiment 2.

Referring to fig. 1 and 2 and 5, the reaction tank 3 is fixed. The safety detection device for dangerous chemicals in this embodiment further includes: the supporting plate 26 is slidably arranged in the box body 1, and a placing groove 2601 matched with the reaction tank 3 is formed in the supporting plate 26.

The box body 1 is hinged with a box door 102 which can be opened and closed, and the reaction tank 3 can be placed in a placing groove 2601 on the supporting plate 26 by pulling out the supporting plate 26.

Referring to fig. 5, further, an L-shaped stop lever 27 is rotatably mounted on a groove wall of the placement groove 2601, and a roller 2701 is rotatably mounted on an end of the L-shaped stop lever 27 near the reaction tank 3.

The weight of the reaction tank 3 presses the roller 2701, so that the roller 2701 drives the L-shaped limiting rod 27 to rotate, and one end of the L-shaped limiting rod 27, which is far away from the roller 2701, is propped against the outer edge surface of the reaction tank 3, so that the reaction tank 3 is fixed.

step 1: placing a reaction tank 3 filled with dry cleaning agent into a box body 1, evaporating the dry cleaning agent in the reaction tank 3 at high temperature, and sequentially entering a first storage tank 4 for storage through a connecting pipe 5 and a spherical transfer station 7 after expanding gas formed by evaporation;

step 2: an operator can collect the sample through an activated carbon adsorption sampling tube, then separate the sample through a GDX-502 chromatographic column, and measure the sample by a flame ionization detector, and quantitatively determine the sample by a retention time qualitative and peak height external standard method;

step 3: when the internal air pressure of the reaction tank 3 is large, in order to prevent explosion, the spherical transfer station 7 pushes the first pushing plate 8 and the second pushing plate 28 on two sides outwards, and after the electrode plate 9 on the first pushing plate 8 is contacted with the electrode plate 9 on the inner wall of the box body 1, a circuit path is formed to supply power to the alarm lamp 2, and the alarm lamp 2 alarms and reminds an operator and carries out corresponding treatment;

step 4: when the second push plate 28 slides, the first rack 12 sliding along with the second push plate 28 displaces and drives the first gear 10 in meshed connection to rotate, the rotating first gear 10 transmits the rotating force to the second gear 11 through the rotating shaft, so that the second gear 11 drives the second rack 13 in meshed connection to descend, the conical block 14 pierces the sealing film on the reaction tank 3, the gas in the reaction tank 3 is quickly released, and explosion caused by extrusion is avoided;

step 5: the gas released quickly is discharged out of the box 1 through the fan 18, and the air pressure in the box 1 is reduced. And after the gas is filtered by an air filter 20 on the discharge pipe 19, toxic substances in the gas are reduced, and the pollution to the air is avoided;

step 6: when the two electrode plates 9 are close to each other, the pump body 23 in the return pipe 22 is electrified to convey the water in the second storage tank 21 into the reaction tank 3, so as to cool the temperature in the reaction tank 3.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. The utility model provides a safety inspection device for dangerous chemicals, includes box (1), fixed mounting has alarm lamp (2) on box (1), its characterized in that still includes:

the partition board (6) is fixedly arranged in the box body (1), and the partition board (6) is used for separating the space in the box body (1);

the device comprises a reaction tank (3) and a first storage tank (4) which are arranged in a box body (1), wherein connecting pipes (5) are fixedly arranged on the reaction tank (3) and the first storage tank (4), and a spherical transfer station (7) is commonly arranged between the two connecting pipes (5);

the separator plate (6) is provided with a first pushing plate (8) and a second pushing plate (28) in a sliding mode, the first pushing plate (8) and the second pushing plate (28) are in butt joint with two sides of the spherical transfer station (7), and two electrode plates (9) which can be in contact with each other are fixedly arranged between the first pushing plate (8) and the inner wall of the box body (1).

2. The safety detection device for dangerous chemicals according to claim 1, wherein the spherical transfer station (7) comprises two circular plates (701) fixedly installed with the connecting pipe (5), an arc plate (702) and an airbag piece (703) are uniformly installed between the two circular plates (701), and the arc plates (702) and the airbag piece (703) are arranged at intervals.

3. The safety detection device for dangerous chemicals according to claim 1, wherein a sliding rail (15) is fixedly installed on the partition board (6), the first pushing board (8) and the second pushing board (28) are respectively and slidably installed on the sliding rail (15), a limiting block (16) is fixedly installed at one end, close to the spherical transfer station (7), of the sliding rail (15), and springs (17) are fixedly connected between the two limiting blocks (16) and the first pushing board (8) and the second pushing board (28) respectively.

4. The safety inspection device for hazardous chemicals of claim 1, further comprising:

the first gear (10) and the second gear (11) are coaxially arranged, the first gear (10) and the second gear (11) are respectively connected with a first rack (12) and a second rack (13) in a meshed mode, the first rack (12) is fixedly arranged on the second push plate (28), and the second rack (13) is slidably arranged on the partition plate (6);

and a conical block (14) is fixedly arranged at one end of the second rack (13) close to the reaction tank (3).

5. The safety inspection device for hazardous chemicals of claim 4, further comprising:

the fan (18) is fixedly arranged on the partition plate (6), the fan (18) is connected with the alarm lamp (2) in series, a discharge pipe (19) is fixedly arranged at the output end of the fan (18), and an air filter (20) is fixedly arranged on the discharge pipe (19).

6. The safety inspection device for hazardous chemicals of claim 1, further comprising:

the second storage tank (21), be connected with connecting pipe (5) equally between second storage tank (21) and first storage tank (4), fixedly connected with back flow (22) between second storage tank (21) and retort (3), fixedly mounted has pump body (23) on back flow (22), pump body (23) are established ties with alarm lamp (2).

7. The safety detection device for dangerous chemicals according to claim 6, wherein an annular pipe (24) is fixedly installed in the reaction tank (3), spray heads (25) are uniformly installed on the annular pipe (24), and the annular pipe (24) is fixedly installed with a return pipe (22).

8. The safety inspection device for hazardous chemicals of claim 1, further comprising:

the support plate (26) is slidably arranged in the box body (1), and a placing groove (2601) matched with the reaction tank (3) is formed in the support plate (26).

9. The safety detection device for dangerous chemicals according to claim 8, wherein an L-shaped limit rod (27) is rotatably installed on the groove wall of the placing groove (2601), and a roller (2701) is rotatably installed at one end of the L-shaped limit rod (27) close to the reaction tank (3).

10. A safety inspection method for dangerous chemicals using a safety inspection apparatus for dangerous chemicals according to any one of claims 1 to 9, characterized by the following operation steps:

step 1: evaporating the dry cleaning agent at high temperature to form gas;

step 2: detecting the content of chloroethylene in the gas;