Storage tank structure for storing epoxypropane

Abstract

The utility model belongs to the technical field of epoxypropane storage, and particularly relates to a storage tank structure for epoxypropane storage, which comprises a storage tank, a tank opening is arranged on one side of the upper side surface of the storage tank, supporting seats are arranged on the lower side of the storage tank at equal intervals, a condensing shell is arranged on the upper side of the inner side wall of the storage tank, and a pump is arranged in the middle of the upper side of the storage tank. A first connecting pipe is arranged at the input end of the pump machine and penetrates through the storage tank to communicate with the condensation shell. When the epoxypropane liquid inside the storage tank volatilizes, the epoxypropane liquid gathers near the condensation shell, and the boiling point of the inner side of the condensation shell is far lower than that of epoxypropane due to the circulating cooling liquid, so that the epoxypropane gas is adsorbed and condensed near the condensation shell into liquid and drips back to the lower part again; the gas pressure of the space above the storage tank is prevented from being increased due to the fact that the epoxypropane gas is increased, the adverse effect on the sealing performance of a tank opening is prevented, the hidden danger of explosion is reduced, and in the subsequent tank opening process, the situation that a large amount of epoxypropane gas rapidly escapes outwards to cause harm to the nearby air environment is prevented.

Description

Technical Field

[0001] This utility model belongs to the field of propylene oxide storage technology, specifically relating to a storage tank structure for propylene oxide storage. Background Technology

[0002] When transporting and storing propylene oxide, nitrogen gas is usually filled into the storage tank for protection. The tank is not filled with propylene oxide; there is space for nitrogen. However, propylene oxide has a boiling point of 34 degrees Celsius. Low-boiling-point propylene oxide is easy to volatilize at normal temperature and pressure. Propylene oxide gas will gradually mix with the nitrogen space in the storage tank, causing an increase in the gas pressure in the space above the tank. This will adversely affect the sealing of the tank opening. In addition, the increase in propylene oxide gas will pose a risk of explosion. When the tank is opened later, propylene oxide gas can also easily escape rapidly, causing harm to the surrounding air environment. Utility Model Content

[0003] To address the above problems, the purpose of this utility model is to provide a storage tank structure for propylene oxide storage, solving the problems that low-boiling-point propylene oxide is prone to volatilization at room temperature and pressure, and that propylene oxide gas will gradually mix in the nitrogen space inside the storage tank, leading to an increase in the gas pressure in the space above the storage tank, which will adversely affect the sealing of the tank opening. In addition, the increase in propylene oxide gas may pose an explosion hazard. Furthermore, when the tank is opened later, propylene oxide gas is also prone to rapid escape and cause harm to the surrounding air environment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a storage tank structure for storing propylene oxide, comprising a storage tank, an opening on one side of the upper surface of the storage tank, support seats equidistantly arranged on the lower surface of the storage tank, a condenser shell on the upper side of the inner wall of the storage tank, a pump in the middle of the upper surface of the storage tank, a connecting pipe 1 at the input end of the pump, the connecting pipe 1 penetrating the storage tank and communicating with the condenser shell, a heat exchanger on one side of the upper surface of the storage tank, the input end of the heat exchanger communicating with the output end of the connecting pipe 1, a connecting pipe 2 at the output end of the heat exchanger, the lower end of the connecting pipe 2 penetrating the storage tank to the inner surface and communicating with the condenser shell, and the connections between the condenser shell and the connecting pipe 1 and the storage tank are all sealed.

[0005] The beneficial effects of this invention are as follows: When the propylene oxide liquid inside the storage tank evaporates, it will accumulate near the condenser shell. Due to the circulating cooling liquid, the temperature inside the condenser shell is much lower than the boiling point of propylene oxide. As a result, the propylene oxide gas will be adsorbed and condensed into liquid near the condenser shell and drip back down. This avoids an increase in the gas pressure in the space above the storage tank due to the increase in propylene oxide gas, thus preventing adverse effects on the sealing of the tank opening and reducing the risk of explosion. Furthermore, it prevents a large amount of propylene oxide gas from rapidly escaping and causing harm to the surrounding air environment when the tank is opened later.

[0006] To reduce the impact of the external environment on propylene oxide;

[0007] As a further improvement to the above technical solution: the inner jacket of the storage tank is provided with an inner tank, and inner support blocks are provided equidistantly around the storage tank and the inner tank, and the gap between the storage tank and the inner tank is filled with a heat insulation layer.

[0008] The beneficial effects of this improvement are: storing propylene oxide in the inner tank increases the insulation effect and reduces the impact of the external environment on propylene oxide.

[0009] In order to increase the contact area with the gas;

[0010] As a further improvement to the above technical solution: the lower side of the condensation shell is uniformly provided with grid grooves.

[0011] The beneficial effect of this improvement is that it increases the contact area with the gas.

[0012] To isolate the heat exchanger and the storage tank;

[0013] As a further improvement to the above technical solution: a heat insulation seat is provided on the lower side of the heat exchanger, the heat insulation seat is located on the upper side of the storage tank, there is a gap between the heat insulation seat and the heat exchanger, and support blocks are provided at the four upper corners of the heat insulation seat for the heat exchanger.

[0014] The beneficial effects of this improvement are: it can isolate the heat exchanger and the storage tank, avoid direct contact between the heat exchanger and the storage tank, and reduce the impact of heat on the surface of the heat exchanger on the storage tank.

[0015] To be used to block the surface of propylene oxide liquid;

[0016] As a further improvement to the above technical solution: liquid level baffles are symmetrically arranged on the upper inner side of the inner tank, and the liquid level baffles are arranged on the lower side.

[0017] The beneficial effect of this improvement is that during transportation, due to bumps, propylene oxide will sway along the inner wall of the inner tank. The liquid level baffle is installed to block the liquid surface of propylene oxide and prevent it from swaying violently.

[0018] To increase the buffering and protection effect on the storage tank;

[0019] As a further improvement to the above technical solution: a rubber protective layer is uniformly provided between the support base and the storage tank.

[0020] The beneficial effect of this improvement is to increase the buffering and protection effect on the storage tank.

[0021] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0022] Figure 1 This is a side cross-sectional view of the present invention. Figure 1 ;

[0023] Figure 2 This is a side cross-sectional view of the present invention. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the structure of this utility model;

[0025] Figure 4 This is a side view of the structure of this utility model;

[0026] In the diagram: 1. Storage tank; 2. Support base; 3. Tank opening; 4. Condensate shell; 5. Connecting pipe one; 6. Pump; 7. Heat exchanger; 8. Connecting pipe two; 9. Insulation base; 10. Inner tank; 11. Inner support block; 12. Rubber protective layer; 13. Liquid level baffle. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0028] like Figure 1 — Figure 4The diagram shows a storage tank structure for storing propylene oxide, comprising a storage tank 1, a tank opening 3 on one side of the upper surface of the storage tank 1, support seats 2 evenly spaced on the lower surface of the storage tank 1, a condenser shell 4 on the upper side of the inner wall of the storage tank 1, a pump 6 located in the middle of the upper surface of the storage tank 1, a connecting pipe 5 connected to the input end of the pump 6, the connecting pipe 5 penetrating the storage tank 1 and communicating with the condenser shell 4, a heat exchanger 7 located on one side of the upper surface of the storage tank 1, the input end of the heat exchanger 7 communicating with the output end of the connecting pipe 5, and a connecting pipe 8 connected to the output end of the heat exchanger 7. The lower end of the pipe penetrates through the storage tank 1 and connects to the condenser shell 4 on the inner side. The connection between the condenser shell 4 and the connecting pipe 5 and the storage tank 1 is sealed. When the propylene oxide liquid inside the storage tank 1 evaporates, it will accumulate near the condenser shell 4. Due to the circulating cooling liquid, the inner side of the condenser shell 4 is much lower than the boiling point of propylene oxide. Therefore, the propylene oxide gas will be adsorbed and condensed into liquid near the condenser shell 4 and drip back down. This avoids an increase in the gas pressure in the space above the storage tank due to the increase in propylene oxide gas, prevents adverse effects on the sealing of the tank opening, reduces the risk of explosion, and prevents a large amount of propylene oxide gas from rapidly escaping when the tank is opened later. To prevent the emission of propylene oxide and its potential harm to the surrounding air environment, an inner tank 10 is provided inside the inner jacket of the storage tank 1. Inner support blocks 11 are equidistantly arranged around the storage tank 1 and the inner tank 10. An insulation layer fills the gap between the storage tank 1 and the inner tank 10. The propylene oxide is stored inside the inner tank 10, which enhances the insulation effect and reduces the impact of the external environment on the propylene oxide. The lower side of the condenser shell 4 is evenly provided with grid grooves to increase the contact area with the gas. A heat insulation seat 9 is provided directly below the heat exchanger 7, and the heat insulation seat 9 is located above the storage tank 1. There is a gap between the heat insulation seat 9 and the heat exchanger 7. The upper four corners of the heat exchanger 7 are provided with support blocks to isolate the heat exchanger 7 and the storage tank 1, preventing direct contact between the heat exchanger 7 and the storage tank 1 and reducing the impact of heat from the surface of the heat exchanger 7 on the storage tank 1. The inner upper side of the inner tank 10 is symmetrically provided with liquid level baffles 13, which are located on the lower side of 14. During transportation, due to bumps, propylene oxide will shake along the inner wall of the inner tank 10. The liquid level baffles 13 are provided to block the propylene oxide liquid level and prevent it from shaking violently. A rubber protective layer 12 is evenly provided between the support base 2 and the storage tank 1 to increase the buffering and protection effect on the storage tank 1.

[0029] Working principle and usage process of this utility model:

[0030] During use, during the transportation of propylene oxide, pump 6 continuously draws coolant from the condenser shell 4 through connecting pipe 1 5, then sends it to the heat exchanger 7 for heat exchange, and then returns it to the condenser shell 4 through connecting pipe 2 8. When the propylene oxide liquid inside the storage tank 1 evaporates, it will accumulate near the condenser shell 4. Due to the circulating coolant, the temperature inside the condenser shell 4 is much lower than the boiling point of propylene oxide, so the propylene oxide gas will be adsorbed and condensed into liquid near the condenser shell 4 and drip back down. This prevents an increase in the gas pressure above the storage tank due to the increase in propylene oxide gas, thus preventing adverse effects on the sealing of the tank opening and reducing the risk of explosion. Furthermore, it prevents a large amount of propylene oxide gas from rapidly escaping and causing harm to the surrounding air environment when the tank is opened later. In addition, an inner tank 10 is provided in the inner jacket of the storage tank 1, and inner support blocks 11 are equidistantly arranged around the storage tank 1 and the inner tank 10. The gap between tanks 10 is filled with an insulation layer. Propylene oxide is stored in the inner tank 10, which increases the insulation effect and reduces the impact of the external environment on the propylene oxide. In addition, during use, the lower side of the condenser shell 4 is uniformly provided with grid grooves to increase the contact area with the gas. In addition, during use, a heat insulation seat 9 is provided to isolate the heat exchanger 7 and the storage tank 1, avoiding direct contact between the heat exchanger 7 and the storage tank 1 and reducing the impact of the heat on the surface of the heat exchanger 7 on the storage tank 1. In addition, during use, liquid level baffles 13 are symmetrically provided on the upper inner side of the inner tank 10. The liquid level baffles 13 are located on the lower side of 14. During transportation, due to bumps, the propylene oxide will shake along the inner wall of the inner tank 10. The liquid level baffles 13 are used to block the liquid surface of the propylene oxide and prevent it from shaking violently. In addition, during use, a rubber protective layer 12 is uniformly provided between the support seat 2 and the storage tank 1 to increase the buffering and protection effect of the storage tank 1.

[0031] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A storage tank structure for propylene oxide storage, characterized by: The utility model provides a kind of condensing tank, including storage tank (1), the upper side of the storage tank (1) is provided with tank mouth (3), the lower side of the storage tank (1) is provided with support seat (2) equidistantly, the inner side wall of the storage tank (1) is provided with condensing shell (4) upper side, the upper side of the storage tank (1) is provided with pump machine (6) middle part, the input end of the pump machine (6) is provided with connecting pipe one (5), the connecting pipe one (5) is communicated with condensing shell (4) by penetrating storage tank (1), the upper side of the storage tank (1) is provided with heat exchanger (7) side, the input end of the heat exchanger (7) is communicated with the output end of connecting pipe one (5), the output end of the heat exchanger (7) is communicated and is provided with connecting pipe two (8), the lower end of the connecting pipe two (8) is communicated with condensing shell (4) by penetrating storage tank (1) to inner side, the connecting place of condensing shell (4) and connecting pipe one (5) and storage tank (1) are all sealed.

2. A storage tank structure for propylene oxide storage according to claim 1, characterized in that: The inner side of the storage tank (1) is provided with an inner layer tank (10), and an inner support block (11) is provided around the storage tank (1) and the inner layer tank (10) equidistantly, and a heat preservation layer is filled in the gap between the storage tank (1) and the inner layer tank (10).

3. A storage tank structure for propylene oxide storage as claimed in claim 1, wherein: The lower side of the condensing shell (4) is uniformly provided with grid grooves.

4. A storage tank structure for propylene oxide storage as claimed in claim 1, wherein: The lower side of the heat exchanger (7) is provided with a heat insulation seat (9), which is arranged on the upper side of the storage tank (1), and there is a gap between the heat insulation seat (9) and the heat exchanger (7), and the upper side of the heat insulation seat (9) is provided with a supporting block for the heat exchanger (7).

5. A storage tank structure for propylene oxide storage as claimed in claim 2, wherein: The inner side of the inner layer tank (10) is symmetrically provided with a liquid level baffle (13) on the upper side, and the liquid level baffle (13) is arranged on the lower side of (14).

6. A storage tank structure for propylene oxide storage as defined in claim 1, wherein: The support seat (2) and the storage tank (1) are uniformly provided with a rubber protective layer (12).

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