CN219362060U

CN219362060U - Safety precaution device that chemicals stored

Info

Publication number: CN219362060U
Application number: CN202320449984.6U
Authority: CN
Inventors: 梅鹏; 刘翠; 李宇; 李强; 程榆高; 雷小明
Original assignee: Chongqing Huahui Painting Co ltd
Current assignee: Chongqing Huahui Painting Co ltd
Priority date: 2023-03-10
Filing date: 2023-03-10
Publication date: 2023-07-18
Anticipated expiration: 2033-03-10

Abstract

The utility model discloses a safety early warning device for chemical product storage, which comprises a tank body, wherein a gas-liquid separator is arranged in the tank body, a fixed plate is arranged on the inner wall of the tank body, a cover is arranged on the fixed plate, a moisture early warning device communicated with the gas-liquid separator is arranged on the fixed plate, one side of the moisture early warning device is communicated with a moisture buffering device, one side of the moisture buffering device is communicated with one end of a U-shaped liquid level pipe, the other end of the U-shaped liquid level pipe is communicated with an expansion bag, a pressure sensor is arranged on the fixed plate, and the moisture early warning device and the pressure sensor are both connected with an explosion-proof alarm. The utility model is provided with the moisture early warning device so as to prompt the change of the stored humidity, the pressure sensor is arranged to timely transmit the pressure increase, and the explosion-proof alarm is arranged to timely early warn when the humidity is increased or the pressure is increased, so that the monitoring efficiency of the chemical product storage process and the storage safety are improved.

Description

Safety precaution device that chemicals stored

Technical Field

The utility model relates to the technical field of chemical product storage, in particular to a safety early warning device for chemical product storage.

Background

After the production of the paint or the paint-related gas-liquid, the corresponding containers are required to be stored, the early warning and warning of the containers are prevented by adopting a safety label and warning mark, the monitoring of the safety state of the internal gas-liquid only depends on the manual observation of the conventional visual, olfactory and tactile modes such as the external appearance state, whether the smell escapes, whether the outer wall is normal or not, and the like, and the monitoring of whether the internal gas-liquid of the containers is changed or not is achieved. In the process of storage and transportation, once gas and liquid are expanded, great potential safety hazards are formed, and particularly, the damage and severity of safety accidents are serious for the chemical product industry related to the paint.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to solve the technical problems that: the safety precaution device for chemical product storage is convenient for monitoring the pressure state change in the storage device.

In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a safety precaution device that chemicals stored, including storing the jar body of chemicals be equipped with the gas-liquid separator in the jar body, be equipped with the fixed plate on the inner wall of this jar body be equipped with the shroud on the fixed plate be equipped with the moisture precaution device with gas-liquid separator intercommunication on the fixed plate, moisture precaution device's one side intercommunication is equipped with aqueous vapor buffer, one side and the one end intercommunication of U-shaped liquid level pipe of aqueous vapor buffer, the other end and the inflation package intercommunication of this U-shaped liquid level pipe are equipped with pressure sensor in the position department that corresponds the inflation package on this fixed plate, moisture precaution device and pressure sensor all are connected with the explosion-proof alarm who establishes at the external side of jar; the water early warning device, the pressure sensor and the explosion-proof alarm are all connected with a PLC controller arranged outside the tank body.

By adopting the structure, the gas-liquid separator is arranged to separate the moisture in the gas, namely, only the gas is sent into the moisture early warning device, the moisture in the gas is absorbed again in the moisture early warning device, when the moisture early warning device detects that the humidity exceeds the standard, a signal is sent to the PLC, and the PLC starts an explosion-proof alarm to remind the stored substances of being wetted, so that the stored chemicals can be processed in time; the water-gas buffer device is arranged to delay the entering gas again, and the residual moisture in the gas is dehydrated by utilizing the speed of slowing down the entering gas and the action of gravity; the gas through dewatering many times gets into U-shaped liquid level pipe at last, utilizes the liquid in the air pressure extrusion U-shaped liquid level pipe, under the pressure effect, liquid and gas in the U-shaped liquid level pipe get into the inflation package together in, when the inflation package inflation was to conflict pressure sensor, pressure sensor sent the signal to the PLC controller to start explosion-proof alarm by the PLC controller, in order to remind the condition that jar internal pressure grow, so that in time carry out the decompression to jar body and handle, get rid of the potential safety hazard, the structure sets up compactly, be convenient for observe and the simple operation.

In order to simplify the structure and facilitate the installation, as an optimization, the water early warning device comprises a reaction cylinder fixedly arranged on a fixed plate, wherein one end of the reaction cylinder is communicated with an air inlet pipe which penetrates through a cover cap and is communicated with a gas-liquid separator, and the other end of the reaction cylinder is communicated with an air outlet pipe which is communicated with a water-gas buffer device; the inner wall of the reaction cylinder is fixedly provided with a moisture sensitive element, a display screen is arranged on the outer side wall of the tank body at the position corresponding to the moisture sensitive element, and the moisture sensitive element and the display screen are both connected with a PLC.

In order to improve the recognition of observation and monitoring, preferably, anhydrous copper sulfate powder is filled in the reaction cylinder.

In order to facilitate the observation of the drying condition of the gas, preferably, an observation window is arranged at the position of the tank body corresponding to the reaction cylinder, and a yielding hole is arranged at the position of the fixed plate corresponding to the observation window.

In order to facilitate the adjustment of the flow of gas water removal, preferably, the water-gas buffer device comprises a buffer box fixedly arranged on a fixed plate, one end of the buffer box is provided with an air duct communicated with an air outlet pipe, and the other end of the buffer box is provided with an exhaust pipe communicated with a U-shaped liquid level pipe; the three-way control valve is arranged at the communication part of the air outlet pipe and the air guide pipe and is connected with the PLC.

In order to facilitate the discharge of redundant residual gas for the use of reloading storage, preferably, the exhaust pipe is also communicated with a connecting pipe extending out of the tank body, and the extending end of the connecting pipe is provided with an exhaust valve.

For better facilitating the purpose of gas dewatering, preferably, a drying cylinder is further communicated with the air outlet pipe, and one end of the drying cylinder is communicated with the three-way control valve.

In order to ensure the accuracy of pressure monitoring, preferably, a pressure regulating valve is arranged at the connecting end of the U-shaped liquid level pipe and the expansion bag, and the pressure regulating valve is connected with a PLC controller.

In order to facilitate rapid water removal, the drying cylinder is preferably filled with a drying agent.

The beneficial effects are that: the utility model is provided with the moisture early warning device so as to prompt the change of the stored humidity, the pressure sensor is arranged to timely transmit the pressure increase, and the explosion-proof alarm is arranged to timely early warn when the humidity is increased or the pressure is increased, so that the monitoring efficiency of the chemical product storage process and the storage safety are improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

fig. 1 is a schematic view of the mounting structure of the present utility model.

Fig. 2 is a schematic view of an installation structure of the outside of the can body.

The meaning of the reference numerals in the drawings are:

a tank body-1; a fixing plate-11; a relief hole-111; a viewing window-12; a gas-liquid separator-2;

a reaction cylinder-31; an air intake pipe-32; an air outlet pipe-33; a moisture sensitive element-34; a display screen-35; a drying drum-36;

buffer box-4; an airway tube-41; an exhaust pipe-42; a connecting tube-421; an exhaust valve-422; a three-way control valve-43;

u-shaped liquid level pipe-5; a pressure regulating valve-51; expansion bag-6; a pressure sensor-7; and an explosion-proof alarm (8).

Detailed Description

As shown in fig. 1 and 2, the utility model comprises a tank body 1 for storing chemicals, a gas-liquid separator 2 is arranged in the tank body 1, a fixed plate 11 is arranged on the inner wall of the tank body 1, a cover cap (not labeled) is arranged on the fixed plate 11, the cover cap can cover the fixed plate 11 to form a closed cavity structure, and a moisture early warning device, a water-gas buffer device, a U-shaped liquid level pipe 5 and an expansion bag 6 are sequentially arranged on the fixed plate 11 at positions corresponding to the inside of the cavity structure along the gas introducing direction.

The water early warning device comprises a reaction cylinder 31 fixedly arranged on a fixed plate 11, anhydrous copper sulfate powder is filled in the reaction cylinder 31, an observation window 12 is arranged at a position corresponding to the reaction cylinder 31 on the tank body 1, and a yielding hole 111 is arranged at a position corresponding to the observation window 12 on the fixed plate 11; one end of the reaction cylinder 31 is communicated with an air inlet pipe 32 penetrating through the cover and communicated with the gas-liquid separator 2, and the other end of the reaction cylinder 31 is communicated with an air outlet pipe 33 communicated with the water-gas buffer device; the inner wall of the reaction cylinder 31 is fixedly provided with a moisture sensitive element 34, a display screen 35 is arranged on the outer side wall of the tank body 1 at a position corresponding to the moisture sensitive element 34, and the moisture sensitive element 34 and the display screen 35 are connected with a PLC (not labeled) arranged on the outer side of the tank body 1.

The water-gas buffer device comprises a buffer box 4 fixedly arranged on a fixed plate 11, one end of the buffer box 4 is provided with an air duct 41 communicated with an air outlet pipe 33, and the other end of the buffer box is provided with an air outlet pipe 42 communicated with a U-shaped liquid level pipe 5; a three-way control valve 43 is arranged at the communication part of the air outlet pipe 33 and the air guide pipe 41, and the three-way control valve 43 is connected with a PLC controller.

A connecting pipe 421 extending out of the tank body 1 is further communicated with the exhaust pipe 42, and an exhaust valve 422 is arranged at the extending end of the connecting pipe 421; the air outlet pipe 33 is further provided with a drying cylinder 36 in a communicating manner, the drying cylinder 36 is filled with a drying agent, and one end of the drying cylinder 36 is provided in a communicating manner with a three-way control valve 43.

One end of the U-shaped liquid level pipe 5 is communicated with the expansion bag 6, a pressure regulating valve 51 is arranged at the connecting end of the U-shaped liquid level pipe 5 and the expansion bag 6, and the pressure regulating valve 51 is connected with a PLC controller.

The position of the fixed plate 11 corresponding to the expansion bag 6 is provided with a pressure sensor 7, the moisture early warning device and the pressure sensor 7 are connected with an explosion-proof alarm 8 arranged on the outer side of the tank body 1, and the explosion-proof alarm 8 is connected with a PLC controller.

The application principle of the utility model is as follows:

as shown in fig. 1 to 2, as chemical varieties are more, we show by physical state classification, when the chemical is solid, if moisture deterioration occurs, air in the tank body 1 will carry moisture, after being treated by the moisture separator 2, the air enters the reaction cylinder 31, if residual moisture still exists, the moisture reacts with anhydrous copper sulfate powder to generate blue color, and staff can observe the color development area of the anhydrous copper sulfate powder in time at the position of the observation window 12, thereby judging the moisture degree of the chemical so as to make a treatment decision in time; if the humidity is high, the humidity sensor 34 (also called MSD) detects the humidity, and when the humidity reaches a certain level, signals the PLC, the PLC starts the explosion-proof alarm 8, and the humidity value is displayed on the display screen 35 to remind the stored substances of serious humidity.

Under the high temperature condition and when the temperature difference change is large, moisture in the air is separated out, for example, solid chemicals generate gas when being wetted, the gas enters the U-shaped liquid level tube 5 after sequentially passing through the reaction tube 31 and the drying tube 36, the drying agent in the drying tube 36 mainly absorbs water vapor in the gas, and in the continuous gas generation process, the gas extrudes the liquid in the U-shaped liquid level tube 5 and flows into the expansion bag 6 together due to the limited space in the tank body 1, the expansion bag 6 is compressed and expanded, and when the expansion bag 6 expands to the abutting pressure sensor 7, the pressure sensor 7 sends a signal to the PLC controller, and the PLC controller starts the explosion-proof alarm 8 to remind the condition that the internal pressure of the tank body 1 is increased so as to timely decompress the tank body 1 and eliminate potential safety hazards.

When the chemical product is gas, as the cover cap is arranged on the fixed plate 11, the device fixed on the fixed plate 11 is isolated from the space in the tank body 1, so that the gas pressure in the tank body 1 can not directly act on the openings at the two ends of the U-shaped liquid level pipe 5 so as not to influence the monitoring effect; similarly, when the tank 1 is impacted to deform or is affected by temperature, and the gas pressure is increased, the gas still enters the U-shaped liquid level tube 5 after sequentially passing through the water-gas separator 2, the reaction tube 31 and the drying tube 34, and in the process of continuously increasing the pressure, the gas presses the liquid in the U-shaped liquid level tube 5 and flows into the expansion bag 6 together, the expansion bag 6 is compressed and expanded, and when the expansion bag 6 expands to the abutting pressure sensor 7, the pressure sensor 7 sends a signal to the PLC controller, and the PLC controller starts the explosion-proof alarm 8 to remind that the pressure in the tank 1 is increased.

It should be noted that, if the activity of the gas is strong, the three-way control valve 43 needs to be adjusted on the PLC controller at this time to disconnect the direct communication between the air outlet pipe 33 and the U-shaped liquid level pipe 5, so that the gas flows to the U-shaped liquid level pipe 5 again through the air guide pipe 41, the buffer tank 4 and the air outlet pipe 42, and in the buffer tank 4, the flow rate of the gas is slowed down, part of the moisture in the gas is removed, and meanwhile, the pressure error of the liquid level transmission of the U-shaped liquid level pipe 5 is reduced; if the activity of the gas is weak and the pressure change is slow, the three-way control valve 43 is adjusted to enable the air outlet pipe 33 to be directly communicated with the U-shaped liquid level pipe 5, meanwhile, the communication between the three-way control valve 43 and the air guide pipe 41 is closed, and the gas directly enters the U-shaped liquid level pipe 5, so that the monitoring effect is more direct.

Similarly, when the solid chemical is a substance which has more active reaction, the three-way control valve 43 should be adjusted to remove water from the gas generated by the wetting process through the buffer tank 4; otherwise, when the solid chemical is inactive, the three-way control valve 43 is adjusted to directly connect the air outlet pipe 33 with the U-shaped liquid level pipe 5.

When the chemical is liquid, at this moment, the liquid level of the injected liquid cannot directly contact the water-gas separator 2, when the tank body 1 is impacted to deform or is affected by temperature, the gas generated by volatilization of the liquid enables the pressure inside the tank body to increase, the gas still enters the U-shaped liquid level tube 5 after sequentially passing through the water-gas separator 2, the reaction tube 31 and the drying tube 36, the gas extrudes the liquid in the U-shaped liquid level tube 5 and flows into the expansion bag 6 together, the expansion bag 6 is compressed and expanded, when the expansion bag 6 expands to the abutting pressure sensor 7, the pressure sensor 7 sends a signal to the PLC controller, and the PLC controller starts the explosion-proof alarm 8 to remind the situation that the pressure inside the tank body 1 is increased.

In the use process, in order to ensure the accuracy of pressure transmission, a pressure regulating valve 51 is arranged, and according to the characteristics of stored chemicals, the pressure regulating valve 51 is adaptively adjusted on a PLC (programmable logic controller) to control the transmission efficiency of pressure and flow, and particularly, dangerous chemicals should be early warned; when the tank 1 is used for storing and cleaning the reload, the exhaust valve 422 is opened first to exhaust the residual gas in the buffer tank 4 or the tank 1, and the balance of the internal and external air pressures of the tank 1 is facilitated.

In this application, because the tightness needs to be guaranteed in the tank 1, the position of the connecting pipe 421, the position of the device wiring connected with the PLC controller penetrating out of the tank 1, and the position of the device wiring connected with the explosion-proof alarm 8 penetrating out of the tank 1 should all be guaranteed in the tightness, and the sealing structure setting at the external position of the tank 1 belongs to the common technology, so that the details are not repeated here.

Claims

1. The utility model provides a safety precaution device that chemicals stored, includes the jar body (1) of storing chemicals, its characterized in that: the gas-liquid separator (2) is arranged in the tank body (1), the fixed plate (11) is arranged on the inner wall of the tank body (1), the cover is arranged on the fixed plate (11), the moisture early warning device communicated with the gas-liquid separator (2) is arranged on the fixed plate (11), one side of the moisture early warning device is communicated with the moisture buffering device, one side of the moisture buffering device is communicated with one end of the U-shaped liquid level pipe (5), the other end of the U-shaped liquid level pipe (5) is communicated with the expansion bag (6), the pressure sensor (7) is arranged on the fixed plate (11) at the position corresponding to the expansion bag (6), and the moisture early warning device and the pressure sensor (7) are both connected with the explosion-proof alarm (8) arranged on the outer side of the tank body (1); the water early warning device, the pressure sensor (7) and the explosion-proof alarm (8) are all connected with a PLC controller arranged on the outer side of the tank body (1).

2. The safety precaution device of claim 1, wherein: the water early warning device comprises a reaction cylinder (31) fixedly arranged on a fixed plate (11), one end of the reaction cylinder (31) is communicated with an air inlet pipe (32) penetrating through a cover and communicated with the gas-liquid separator (2), and the other end of the reaction cylinder (31) is communicated with an air outlet pipe (33) communicated with the water-gas buffer device; the inner wall of the reaction cylinder (31) is fixedly provided with a moisture sensitive element (34), a display screen (35) is arranged on the outer side wall of the tank body (1) at a position corresponding to the moisture sensitive element (34), and the moisture sensitive element (34) and the display screen (35) are connected with a PLC.

3. The safety precaution device of claim 2, wherein: the reaction cylinder (31) is filled with anhydrous copper sulfate powder.

4. The safety precaution device of claim 2, wherein: an observation window (12) is arranged on the tank body (1) at a position corresponding to the reaction cylinder (31), and a yielding hole (111) is arranged on the fixed plate (11) at a position corresponding to the observation window (12).

5. The safety precaution device of claim 1, wherein: the water-gas buffer device comprises a buffer box (4) fixedly arranged on a fixed plate (11), one end of the buffer box (4) is provided with an air duct (41) communicated with an air outlet pipe (33), and the other end of the buffer box is provided with an exhaust pipe (42) communicated with a U-shaped liquid level pipe (5); a three-way control valve (43) is arranged at the communication position of the air outlet pipe (33) and the air guide pipe (41), and the three-way control valve (43) is connected with a PLC.

6. The safety precaution device of claim 5, wherein: the exhaust pipe (42) is also communicated with a connecting pipe (421) extending out of the tank body (1), and an exhaust valve (422) is arranged at the extending end of the connecting pipe (421).

7. The safety precaution device of claim 5, wherein: the air outlet pipe (33) is also communicated with a drying cylinder (36), and one end of the drying cylinder (36) is communicated with a three-way control valve (43).

8. The safety precaution device of claim 1, wherein: the connecting end of the U-shaped liquid level pipe (5) and the expansion bag (6) is provided with a pressure regulating valve (51), and the pressure regulating valve (51) is connected with a PLC controller.

9. The safety precaution device for chemical storage of claim 7, wherein: a desiccant is filled in the drying cylinder (36).