CN221682603U - A liquid sulfur trioxide storage tank insulation device - Google Patents

Abstract

A liquid sulfur trioxide storage tank insulation device comprises an insulation house, a sloping roof is arranged on the top of the insulation house, an entrance door is arranged on the outer wall of the insulation house, a sulfur trioxide storage tank is placed in the insulation house, a temperature adjustment system and a monitoring system are arranged in the insulation house, and a cofferdam is arranged outside the insulation house; the utility model can ensure that the sulfur trioxide storage tank is in a suitable temperature range through the temperature adjustment system, can monitor the storage state and on-site conditions of the sulfur trioxide storage tank in real time through the monitoring system, and prevent leakage from spreading through the concrete cofferdam, so as to ensure the storage state of the liquid sulfur trioxide and achieve the purpose of safety and reliability.

Description

A liquid sulfur trioxide storage tank insulation device

Technical Field

The utility model relates to the field of storage tank insulation devices, in particular to a liquid sulfur trioxide storage tank insulation device.

Background Art

With the expansion of the market for electronic-grade sulfuric acid, more and more devices are using liquid sulfur trioxide. Since liquid sulfur trioxide is a material with a boiling point and a freezing point that are very close, it has very strict requirements on the storage temperature. When the temperature is below 30°C, local crystallization will occur, and when the temperature is above 42°C, it will begin to vaporize. The crystallization of liquid sulfur trioxide will not only block the pipeline valves, but also form different crystals that are difficult to thaw. The vaporization of liquid sulfur trioxide will increase the volume of the material and cause the pressure to rise, which will cause the connecting flange to leak and form a safety and environmental accident. Therefore, studying a liquid sulfur trioxide storage tank insulation device and method is a necessary and beneficial measure to maintain the stability of material properties and safety and environmental protection.

Summary of the invention

The technical problem to be solved by the utility model is to provide a liquid sulfur trioxide storage tank insulation device, which can ensure that the sulfur trioxide storage tank is in a suitable temperature range through a temperature adjustment system, can monitor the storage state and on-site conditions of the sulfur trioxide storage tank in real time through a monitoring system, and prevent leakage from spreading through a concrete cofferdam, so as to ensure the storage state of liquid sulfur trioxide and achieve the purpose of safety and reliability.

In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve:

A liquid sulfur trioxide storage tank insulation device comprises an insulation house, a sloping roof is arranged on the top of the insulation house, an entrance door is arranged on the outer wall of the insulation house, a sulfur trioxide storage tank is placed in the insulation house, a temperature adjustment system and a monitoring system are arranged in the insulation house, and a cofferdam is arranged outside the insulation house.

In a preferred solution, the sulfur trioxide storage tank is arranged on the floor of the heat-insulating house through a first bracket, and the top of the sulfur trioxide storage tank is connected to a feed pipe, on which a cut-off valve is installed.

In a preferred solution, the temperature regulating system includes a radiator and an exhaust vent, wherein the exhaust vent is opened on the outer wall of the insulation house and is symmetrically arranged, an exhaust fan is installed at the exhaust vent, and the radiator is arranged on both sides of the sulfur trioxide storage tank.

In the preferred solution, one end of the radiator is connected to an air inlet pipe, on which a steam regulating valve is installed, and the other end of the radiator is connected to a drain pipe, on which a drain valve is installed. The water outlet of the drain pipe is led outside the insulation house, a drainage trough is provided below the water outlet and extends outside the cofferdam, and an anti-scalding screen is provided on the outside of the radiator.

In the preferred solution, the monitoring system includes a camera, a gas monitor and a temperature sensor. The camera is installed at the four corners of the roof of the insulation house, the temperature sensor is installed at the four corners of the floor of the insulation house, and the gas monitor is installed at the front and rear ends of the sulfur trioxide storage tank.

In a preferred solution, the gas monitor is installed near the front and rear ring welds of the sulfur trioxide storage tank through a second bracket, and the second bracket is a telescopic structure and can adjust the height of the gas monitor from the ground.

In the preferred solution, the outer wall of the insulation house and the sloping roof are both multi-layer structures, the outer layer of the outer wall of the insulation house and the sloping roof is a color steel plate, and the inner layer of the insulation house and the sloping roof is a sandwich panel, and the middle part of the sandwich panel is filled with insulation cotton.

A liquid sulfur trioxide storage tank insulation device, the device has the following advantages:

1. This device uses a heat-insulating room to insulate the liquid sulfur trioxide storage tank, which has good insulation and heat preservation effects, is rainproof and anti-corrosive, and has low energy consumption;

2. This device can grasp the temperature of the insulation room in real time through the monitoring system, and can accurately control the temperature in the insulation room with the temperature adjustment system, so that the storage temperature of liquid sulfur trioxide is always within a reasonable range;

3. This device can grasp the situation in the insulation room in real time through the monitoring system, achieving the purpose of unmanned operation and being able to detect abnormalities in time to prevent the accident from further expanding;

4. This device can effectively prevent the leakage from spreading once a leakage accident occurs by setting up a cofferdam.

BRIEF DESCRIPTION OF THE DRAWINGS

The utility model is further described below in conjunction with the accompanying drawings and embodiments:

Fig. 1 is a schematic diagram of the external structure of the heat preservation room of the utility model;

Fig. 2 is a cross-sectional view of the internal structure of the heat preservation room of the present invention;

FIG3 is an enlarged schematic diagram of the structure of the radiator of the utility model;

FIG4 is an enlarged schematic diagram of the exterior wall and sloped roof structure of the thermal insulation house of the present invention.

In the figure: insulation house 1, sloping roof 2, exhaust vent 3, inlet and outlet door 4, cofferdam 5, sulfur trioxide storage tank 6, first bracket 7, radiator 8, temperature sensor 9, drainage trough 10, feed pipe 11, shut-off valve 12, camera 13, second bracket 14, gas monitor 15, drain pipe 16, drain valve 17, air intake pipe 18, steam regulating valve 19, color steel plate 20, sandwich panel 21, insulation cotton 22.

DETAILED DESCRIPTION

As shown in FIG1 , a liquid sulfur trioxide storage tank insulation device includes an insulation house 1, a sloping roof 2 is arranged on the top of the insulation house 1, an entrance door 4 is arranged on the outer wall of the insulation house 1, a sulfur trioxide storage tank 6 is placed in the insulation house 1, a temperature adjustment system and a monitoring system are arranged in the insulation house 1, and a cofferdam 5 is arranged outside the insulation house 1; the roof 2 adopts a gabled double-slope roof, which can effectively prevent rainwater accumulation and leakage, and the cofferdam 5 is usually cast with 1m high and 200mm thick concrete. Once the sulfur trioxide storage tank 6 leaks, the leakage can be prevented from spreading.

The preferred solution is shown in Figure 2. The sulfur trioxide storage tank 6 is set on the floor of the insulation house 1 through the first bracket 7. The top of the sulfur trioxide storage tank is connected to a feed pipe 11, and a cut-off valve 12 is installed on the feed pipe 11. The cut-off valve 12 adopts a remote control system and can cut off the feed in an emergency.

The preferred solution is shown in Figures 1 and 2. The temperature control system includes a radiator 8 and an exhaust port 3. The exhaust port 3 is opened on the outer wall of the insulation house 1 and is symmetrically arranged. An exhaust fan is installed at the exhaust port 3. The radiator 8 is arranged on both sides of the sulfur trioxide storage tank 6. The exhaust fan uses an explosion-proof motor, a stainless steel impeller and casing, and a wall-type axial flow fan with rainproof shutters. The exhaust direction of the axial flow fan faces outward and is used for ventilation when the temperature in the device is high or leakage occurs.

As shown in FIG. 2 and FIG. 3 , one end of the radiator 8 is connected to an air inlet pipe 18, on which a steam regulating valve 19 is installed, and the other end of the radiator 8 is connected to a drain pipe 16, on which a drain valve 17 is installed, and the water outlet of the drain pipe 16 is led to the outside of the insulation house 1, and a drainage trough 10 is arranged below the water outlet and extends outside the cofferdam 5, and an anti-scalding screen is arranged on the outside of the radiator 8;

The radiator 8 adopts a double-row tube radiator. The heat source of the radiator 8 adopts low-pressure steam. The air intake can be adjusted according to the indoor temperature through the steam regulating valve 19. The condensed water inside the radiator 8 can be discharged to the outside of the cofferdam 5 through the drain pipe 16 and the drain trough 10 to ensure the dryness of the storage environment.

The preferred solution is shown in FIG2 , the monitoring system includes a camera 13, a gas monitor 15 and a temperature sensor 9, the camera 13 is installed at the four corners of the roof of the insulation house 1, the temperature sensor 9 is installed at the four corners of the floor of the insulation house 1, and the gas monitor 15 is installed at the front and rear ends of the sulfur trioxide storage tank;

The camera 13 adopts a high-definition camera ball machine. By setting one at each corner of the roof, 360° full coverage monitoring of the sulfur trioxide storage tank 6 can be guaranteed. The temperature sensor 9 adopts a thermocouple. By setting the temperature sensor 9 at the four corners in the house, the accuracy of the monitored temperature can be guaranteed. The temperature sensor 9 is wirelessly connected to the remote control center and can upload the monitored temperature in real time.

The preferred solution is shown in Figure 2. The gas monitor 15 is installed near the front and rear ring welds of the sulfur trioxide storage tank through the second bracket 14. The second bracket 14 is a telescopic structure and can adjust the height of the gas monitor 15 from the ground. The position of the gas monitor 15 is adjusted in time according to the size of the sulfur trioxide storage tank 6 to make it close to the position most prone to leakage. The gas monitor 15 is also wirelessly connected to the remote control center.

The preferred solution is shown in Figure 2, the outer wall 1 of the insulation house and the sloping roof 2 are both multi-layer structures, the outer layer of the outer wall of the insulation house 1 and the sloping roof 2 is a color steel plate 20, the inner layer of the insulation house 1 and the sloping roof 2 is a sandwich panel 21, and the middle part of the sandwich panel 21 is filled with insulation cotton 22.

The operating principle of the device is as follows: a liquid sulfur trioxide storage tank insulation device, in normal operation, the entrance door 4 is closed, the temperature in the insulation room 1 is controlled between 30-42°C, when the indoor temperature is lower than 30°C, the steam regulating valve 19 of the radiator 8 is opened to increase the heat dissipation; when the indoor temperature is higher than 42°C, the steam regulating valve 19 of the radiator 8 is closed first, if the external ambient temperature is relatively high or the sun is exposed, the steam regulating valve 19 of the radiator 8 is completely closed and the temperature in the insulation room 1 is still higher than 42°C, then the entrance door 4 is opened for ventilation, and the wall-type axial flow fan at the exhaust port 3 is turned on for ventilation and cooling.

The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims (7)

1. The utility model provides a liquid sulfur trioxide storage tank heat preservation device, including heat preservation room (1), its characterized in that: the top of heat preservation room (1) is provided with slope roof (2), and the outer wall department of heat preservation room (1) is provided with business turn over door (4), has placed sulfur trioxide storage tank (6) in heat preservation room (1), is provided with temperature regulation system and monitored control system in heat preservation room (1), and the outside of heat preservation room (1) is provided with cofferdam (5).

2. The liquid sulfur trioxide storage tank insulation apparatus of claim 1, wherein: sulfur trioxide storage tank (6) are through the floor department of first support (7) setting in heat preservation room (1), the top intercommunication of sulfur trioxide storage tank has inlet pipe (11), installs on inlet pipe (11) trip valve (12).

3. The liquid sulfur trioxide storage tank insulation apparatus of claim 1, wherein: the temperature regulation system comprises a radiator (8) and an air outlet (3), wherein the air outlet (3) is formed in the outer wall of the heat preservation house (1) and is symmetrically arranged, the air outlet (3) is provided with an air exhaust fan, and the radiator (8) is arranged on two sides of the sulfur trioxide storage tank (6).

4. A liquid sulfur trioxide storage tank insulation according to claim 3, characterized in that: one end of the radiator (8) is communicated with an air inlet pipe (18), a steam regulating valve (19) is arranged on the air inlet pipe (18), the other end of the radiator (8) is communicated with a drain pipe (16), a drain valve (17) is arranged on the drain pipe (16), a water outlet of the drain pipe (16) is led out of the heat preservation room (1), a drainage groove (10) is arranged below the water outlet and extends out of the cofferdam (5), and an anti-scalding separation net is arranged on the outer side of the radiator (8).

5. The liquid sulfur trioxide storage tank insulation apparatus of claim 1, wherein: the monitoring system comprises a camera (13), a gas monitor (15) and a temperature sensor (9), wherein the camera (13) is arranged at four corners of a roof in the heat preservation house (1), the temperature sensor (9) is arranged at four corners of a floor in the heat preservation house (1), and the gas monitor (15) is arranged at the front end and the rear end of a sulfur trioxide storage tank.

6. The liquid sulfur trioxide storage tank insulation apparatus of claim 5, wherein: the gas monitor (15) is arranged near the front and rear girth welds of the sulfur trioxide storage tank through a second bracket (14), and the second bracket (14) is of a telescopic structure and can adjust the ground clearance of the gas monitor (15).

7. The liquid sulfur trioxide storage tank insulation apparatus of claim 1, wherein: the outer wall of the heat preservation house (1) and the slope roof (2) are of a multi-layer structure, the outer layers of the heat preservation house (1) and the slope roof (2) are color steel plates (20), the inner layers of the heat preservation house (1) and the slope roof (2) are sandwich plates (21), and the middle parts of the sandwich plates (21) are filled with heat preservation cotton (22).