A mixed solution temporary storage device for styrene polymerization inhibitor production

Abstract

The utility model relates to the technical field of chemical equipment design and manufacturing, and specifically discloses a mixed solution temporary storage device for styrene polymerization inhibitor production, including a table support, a clamping mechanism, a sealing cover and a mixed solution temporary storage tank, wherein the table support includes a table seat and a leg column fixed to the bottom of the table seat. The technical solution of the utility model uses a clamping mechanism to tightly buckle the sealing cover on the top of the mixed solution temporary storage tank, so that the styrene polymerization inhibitor mixed solution inside the mixed solution temporary storage tank is stored in a sealed environment, and the inside of the mixed solution temporary storage tank is evacuated into a negative pressure environment through a vacuum pump to avoid leakage of volatile gases inside the mixed solution temporary storage tank, and the negative pressure value of the mixed solution temporary storage tank is monitored by a negative pressure detector, and an alarm is sounded immediately through an alarm device in case of leakage, thereby improving the safety of the styrene polymerization inhibitor mixed solution during temporary storage.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment design and manufacturing, in particular to a mixed solution temporary storage device for styrene polymerization inhibitor production. Background Art

[0002] The mixed solution formed after the production of styrene inhibitor needs to be properly stored if it is not used in time. The storage environment requires that it needs to be set up in a ventilated warehouse. At the same time, the container for temporarily storing the styrene inhibitor needs to be sealed to prevent the leakage of volatile gases from endangering warehouse personnel. At present, it can only be sealed for storage and the establishment of a ventilated environment. There is a lack of measures to monitor whether there is leakage in the sealed storage container, and whether the ventilation system can be opened in time for ventilation after leakage to reduce the concentration of harmful gases. Therefore, there are some areas that need to be improved in the traditional temporary storage method of styrene inhibitor. Therefore, we propose a mixed solution temporary storage device for styrene inhibitor production. Utility Model Content

[0003] The utility model aims to provide a mixed solution temporary storage device for styrene polymerization inhibitor production, which solves the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mixed solution temporary storage device for the production of styrene inhibitor, comprising a table support, a clamping mechanism, a sealing cover and a mixed solution temporary storage tank, the table support comprising a table seat and a leg column fixed to the bottom of the table seat, the clamping mechanism is fixed to the bottom of the table seat, the sealing cover is connected to the clamping mechanism, the sealing cover is sleeved on the top of the mixed solution temporary storage tank, a vacuum tube and a negative pressure detector are connected to the top of the sealing cover, a manual valve is connected to the mouth of the vacuum tube, one end of the manual valve is connected to a vacuum pump through a pipe body, the negative pressure detector comprises a negative pressure sensor and a negative pressure gauge, an alarm and a controller are fixedly arranged on the outside of the leg column, the negative pressure sensor and the alarm are electrically connected to the controller, an exhaust hood is arranged through the surface of the table seat, the exhaust hood is connected to the input end of the fan through a pipeline, the output end of the fan is connected to the ventilation duct, and the fan is electrically connected to the controller.

[0005] As a preferred implementation of the technical solution of the present application, a rubber sealing ring is fixedly provided on the inner wall of the sealing cover, and when the sealing cover is embedded with the top of the mixed solution temporary storage tank, the rubber sealing ring is in close contact with the side wall of the top of the mixed solution temporary storage tank.

[0006] As a preferred implementation of the technical solution of the present application, the clamping mechanism is a hydraulic cylinder, and the bottom of the push rod of the hydraulic cylinder is fixedly connected to the top surface of the sealing cover by bolts.

[0007] As a preferred implementation of the technical solution of the present application, there are two exhaust hoods, and the two exhaust hoods are symmetrically distributed about the vertical center line of the mixed solution temporary storage tank.

[0008] As a preferred implementation of the technical solution of the present application, the tube body is a gooseneck tube and the vacuum tube is L-shaped.

[0009] As a preferred implementation of the technical solution of the present application, a three-way pipe is provided at the input end of the fan, and both exhaust hoods are connected to the three-way pipe through pipelines.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The technical solution of the present application uses a clamping mechanism to tightly fasten the sealing cover to the top of the mixed solution temporary storage tank, so that the styrene polymerization inhibitor mixed solution inside the mixed solution temporary storage tank is stored in a sealed environment, and the inside of the mixed solution temporary storage tank is evacuated into a negative pressure environment through a vacuum pump to prevent the volatile gas inside the mixed solution temporary storage tank from leaking out, and the negative pressure value of the mixed solution temporary storage tank is monitored by a negative pressure detector, and an alarm is sounded immediately through an alarm in case of leakage, thereby improving the safety of the styrene polymerization inhibitor mixed solution during temporary storage.

[0012] 2. The technical solution of the present application monitors the negative pressure value inside the mixed solution storage tank through the negative pressure sensor of the negative pressure detector. When the value changes greatly, it indicates that a leakage has occurred in the monitored mixed solution storage tank. The controller automatically turns on the fan to quickly draw the volatile gas leaked around the mixed solution storage tank into the ventilation duct for discharge, thereby ensuring the safety of the temporary storage environment of the styrene inhibitor mixed solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a three-dimensional diagram of a mixed solution temporary storage device for styrene polymerization inhibitor production according to the utility model;

[0015] Figure 2 A bottom view of the sealing cover.

[0016] In the figure: 1. Mixed solution temporary storage tank; 2. Sealing cover; 201. Rubber sealing ring; 3. Table bracket; 4. Negative pressure detector; 5. Alarm; 6. Controller; 7. Clamping mechanism; 8. Manual valve; 9. Pipe body; 10. Vacuum tube; 11. Vacuum pump; 12. Exhaust hood; 13. Fan; 14. Ventilation duct. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Embodiment 1, as Figure 1-2 As shown, the utility model provides a technical solution: a mixed solution temporary storage device for styrene polymerization inhibitor production, comprising a table support 3, a clamping mechanism 7, a sealing cover 2 and a mixed solution temporary storage tank 1, the table support 3 comprises a table seat and a leg column fixed to the bottom of the table seat, the clamping mechanism 7 is fixed to the bottom of the table seat, the sealing cover 2 is connected to the clamping mechanism 7, the clamping mechanism 7 is a hydraulic cylinder, the bottom of the push rod of the hydraulic cylinder is fixedly connected to the top surface of the sealing cover 2 by bolts, the sealing cover 2 is sleeved on the top of the mixed solution temporary storage tank 1, and the top of the sealing cover 2 is connected to a vacuum tube 10 and a negative pressure The detector 4 and the pipe mouth of the vacuum tube 10 are connected to a manual valve 8, one end of the manual valve 8 is connected to the vacuum pump 11 through the pipe body 9, the negative pressure detector 4 includes a negative pressure sensor and a negative pressure gauge, an alarm 5 and a controller 6 are fixedly provided on the outside of the leg column, the negative pressure sensor and the alarm 5 are electrically connected to the controller 6, an exhaust hood 12 is provided through the surface of the table seat, the exhaust hood 12 is connected to the input end of the fan 13 through a pipeline, the output end of the fan 13 is connected to the ventilation duct 14, the fan 13 is electrically connected to the controller 6, and the outlet end of the ventilation duct 14 is connected to the outside.

[0019] In a specific embodiment of the present invention, the clamping mechanism 7 is a hydraulic cylinder, a pressure value is provided by a small hydraulic station, and the extension and contraction of the hydraulic cylinder is controlled by a hydraulic control valve. The negative pressure detector 4 is composed of a negative pressure sensor and a pressure gauge. The negative pressure sensor is used to detect the negative pressure value and transmit it to the controller 6 for detection in the form of a change in current value. The controller 6 sets a simple program: when the value detected by the negative pressure sensor is -5Kpa, the controller 6 controls the alarm 5 and the fan 13 to be turned off. When the value detected by the negative pressure sensor is a negative pressure value that becomes smaller, such as -2Kpa or returns to 0, it indicates that the negative pressure environment of the mixed solution temporary storage tank 1 disappears, and there is a risk of leakage. At this time, the controller 6 controls the alarm 5 and the fan 13 to be turned on. The fan 13 is turned on to extract the leaked gas to the ventilation duct 14 through the exhaust hood 12 for discharge;

[0020] The operating steps for achieving negative pressure in the mixed solution temporary storage tank 1 are as follows: align the mixed solution temporary storage tank 1 with the sealing cover 2 vertically, operate the sealing cover 2 to seal tightly against the top of the mixed solution temporary storage tank 1, then turn on the manual valve 8 to start the vacuum pump 11, and control the negative pressure value inside the mixed solution temporary storage tank 1 at 5Kpa by observing the value of the pressure gauge, and then turn off the vacuum pump 11 and the manual valve 8. At this time, the interior of the mixed solution temporary storage tank 1 is in a negative pressure state, which can enhance the tightness of the sealing cover 2 and the mixed solution temporary storage tank 1.

[0021] In the preferred technical solution, a rubber sealing ring 201 is fixedly provided on the inner wall of the sealing cover 2. When the sealing cover 2 is embedded in the top of the mixed solution temporary storage tank 1, the rubber sealing ring 201 is in close contact with the side wall of the top of the mixed solution temporary storage tank 1. The rubber sealing ring 201 can enhance the sealing performance when the sealing cover 2 is embedded in the top of the mixed solution temporary storage tank 1.

[0022] In the preferred technical solution, there are two exhaust hoods 12, which are symmetrically distributed about the vertical center line of the mixed solution temporary storage tank 1. The exhaust hoods 12 are distributed on both sides of the top of the mixed solution temporary storage tank 1 to facilitate the full extraction of leaked gas.

[0023] In the preferred technical solution, the tube body 9 is a gooseneck tube, which is a metal hose, so as to adapt to the lifting and lowering of the sealing cover 2, and the vacuum tube 10 is L-shaped.

[0024] In the preferred technical solution, the input end of the fan 13 is connected to a three-way pipe, and the two exhaust hoods 12 are connected to the three-way pipe through pipelines. One fan 13 can realize synchronous exhaust of the two exhaust hoods, saving costs.

[0025] In summary, the present embodiment provides a sealing structure of a temporary storage tank 1 for a styrene polymerization inhibitor mixed solution, and utilizes a vacuum pumping device to evacuate the interior of the temporary storage tank for the mixed solution into a negative pressure state, so that the lifting sealing cover 2 is sealed when it is inlaid with the top of the temporary storage tank 1. At the same time, a negative pressure environment monitoring mechanism is adopted. When the negative pressure environment disappears and there is a risk of leakage, the alarm 5 is turned on in time to give a warning, and the fan 13 is turned on to provide ventilation to ensure the safety of the temporary storage environment of the styrene polymerization inhibitor mixed solution.

Claims

1. A mixed solution temporary storage device for styrene polymerization inhibitor production, characterized in that: The invention comprises a table support (3), a clamping mechanism (7), a sealing cover (2) and a mixed solution temporary storage tank (1), wherein the table support (3) comprises a table seat and a leg column fixed to the bottom of the table seat, the clamping mechanism (7) is fixed to the bottom of the table seat, the sealing cover (2) is connected to the clamping mechanism (7), and the sealing cover (2) is sleeved on the top of the mixed solution temporary storage tank (1); The top of the sealing cover (2) is connected to a vacuum tube (10) and a negative pressure detector (4); the mouth of the vacuum tube (10) is connected to a manual valve (8); one end of the manual valve (8) is connected to a vacuum pump (11) through a tube body (9); the negative pressure detector (4) comprises a negative pressure sensor and a negative pressure gauge; an alarm (5) and a controller (6) are fixedly provided on the outside of the support leg column; the negative pressure sensor and the alarm (5) are both electrically connected to the controller (6); An exhaust hood (12) is provided through the surface of the table seat, the exhaust hood (12) is connected to the input end of the fan (13) through a pipeline, the output end of the fan (13) is connected to the ventilation duct (14), and the fan (13) is electrically connected to the controller (6).

2. The mixed solution temporary storage device for styrene polymerization inhibitor production according to claim 1, characterized in that: A rubber sealing ring (201) is fixedly arranged on the inner wall of the sealing cover (2), and when the sealing cover (2) is fitted into the top of the mixed solution temporary storage tank (1), the rubber sealing ring (201) is in close contact with the side wall of the top of the mixed solution temporary storage tank (1).

3. The mixed solution temporary storage device for styrene polymerization inhibitor production according to claim 1, characterized in that: The clamping mechanism (7) is a hydraulic cylinder, and the bottom of the push rod of the hydraulic cylinder is fixedly connected to the top surface of the sealing cover (2) via bolts.

4. The mixed solution temporary storage device for styrene polymerization inhibitor production according to claim 1, characterized in that: The number of the exhaust hoods (12) is two, and the two exhaust hoods (12) are symmetrically distributed about the vertical center line of the mixed solution temporary storage tank (1).

5. The mixed solution temporary storage device for styrene polymerization inhibitor production according to claim 1, characterized in that: The tube body (9) is a gooseneck tube, and the vacuum tube (10) is L-shaped.

6. The mixed solution temporary storage device for styrene polymerization inhibitor production according to claim 1, characterized in that: The input end of the fan (13) is connected to a three-way pipe, and the two exhaust hoods (12) are connected to the three-way pipe through pipelines.

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