Alcohol product unloading device

Abstract

The utility model discloses an alcohol product discharging device which comprises a plurality of storage tanks fixed through a support, each storage tank is further provided with a pressure release valve and a liquid level meter, the upper ends of the storage tanks are each provided with a liquid inlet branch pipe and a gas inlet branch pipe through a three-way valve, and the liquid inlet branch pipes are jointly connected with a liquid inlet main pipe through a buffer tank; a first electromagnetic valve is installed on the liquid inlet main pipe, a first pressure gauge is installed at the position, located on the connecting flange and the first electromagnetic valve, of the liquid inlet main pipe, the multiple air inlet branch pipes are jointly connected with an air inlet main pipe, liquid outlet branch pipes are installed at the bottom of the storage tank, and the two liquid outlet branch pipes are connected with a liquid outlet main pipe through a second electromagnetic valve. And a third electromagnetic valve is mounted on the liquid outlet main pipe. According to the device, unloading can be provided for a large storage tank, self-inspection of the leakproofness of the device can be completed in the whole process, too large washing cannot be caused to a pipeline in the unloading stage, the whole unloading process is stable, safe and efficient, and the final unloading link and the valve can be frequently operated and are easy to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of alcohol product transportation, in particular to an alcohol product unloading device. Background Art

[0002] As a basic raw material, alcohol is widely used in chemical raw materials, solvents and fuels. Therefore, it is an important basic component of large chemical bases and industrial parks. In order to ensure the supply of basic raw materials in the industrial park, alcohol production occupies an important position in the industrial park. However, the production and storage of alcohol products have strict requirements and are an important protection for safe production. Therefore, precautions and safety operating procedures are particularly important.

[0003] Since the various alcohol raw materials stored need to not only meet their own production, but also meet the production needs of customers with various demands, the storage tanks often face the problem of large reserves but fluctuating demand, and frequent discharge is required. Once leakage or improper operation occurs, there will be safety hazards in the unloading process. For this reason, we proposed an alcohol product unloading device to solve the above problems. Utility Model Content

[0004] The present application provides an alcohol product unloading device, which solves the problems of large alcohol product consumption, large storage tank capacity, frequent unloading and low safety.

[0005] The present application provides an alcohol product unloading device, comprising a plurality of storage tanks fixed by brackets, wherein the storage tanks are also provided with a pressure relief valve and a liquid level gauge, wherein the upper ends of the plurality of storage tanks are provided with a liquid inlet branch pipe and an air inlet branch pipe via a three-way valve, wherein the plurality of liquid inlet branch pipes are commonly connected to a liquid inlet main pipe via a buffer tank, wherein a first solenoid valve is installed on the liquid inlet main pipe, wherein a first pressure gauge is installed on the liquid inlet main pipe at a position where a connecting flange and the first solenoid valve are connected, wherein the plurality of air inlet branch pipes are commonly connected to an air inlet main pipe, wherein a liquid outlet branch pipe is installed at the bottom of the storage tank, wherein two of the liquid outlet branches are connected to a liquid outlet main pipe via a second solenoid valve, wherein a third solenoid valve is installed on the liquid outlet main pipe, and wherein a second pressure gauge is installed at one end of the liquid outlet main pipe close to the storage tank.

[0006] Preferably, the pressure relief valve is connected to the exhaust gas treatment pipeline.

[0007] Preferably, there are four storage tanks, two of which are commonly connected to a buffer tank, and two of which are commonly connected to a second solenoid valve.

[0008] Preferably, the storage tank is installed in a sealed box via a bracket, and a plurality of gas monitoring sensors are installed in the sealed box.

[0009] Preferably, the liquid inlet branch pipe and the liquid inlet main pipe are both covered with thermal insulation cotton.

[0010] Preferably, the storage tank is made of fiberglass.

[0011] It can be seen from the above technical scheme that the present application provides an alcohol product unloading device. When the utility model is in use, the liquid inlet main pipe is connected to the discharge pipe of the methanol, ethanol, propanol and other storage tanks through a flange. Before discharging the material into the storage tank, an inert gas is first injected into the storage tank through the air inlet main pipe, so that the pressure in the storage tank is lower than the measured value of the first pressure gauge by 0.1-0.2 MPa, and then the pressure change in the storage tank is observed. If a pressure change occurs, the detection valve is closed and the pipeline and storage tank are leaking. If there is no pressure change, open the three-way valve. Valve, inject alcohol liquid into the storage tank, adjust the pressure in the storage tank in real time through the pressure relief valve to prevent excessive pressure, when the liquid level in the storage tank reaches the set height, close the three-way valve, and unload the material into ton barrels, tank trucks, etc. through the storage tank. When unloading, first open the second solenoid valve to observe whether the second pressure gauge fluctuates. If there is no fluctuation, open the third solenoid valve for normal unloading. When closing, close the second solenoid valve first, and then close the third solenoid valve. When one of the storage tanks is unloading normally, the other storage tank can be filled, and they can be carried out separately.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Through the setting of the air intake main pipe and the air intake branch pipe, before filling the storage tank, the pressure in the storage tank can be adjusted to a pressure close to that of the large storage tank, so that the material in the large storage tank can be slowly and steadily injected into the storage tank, avoiding damage caused by flushing the pipeline and causing leakage. It can also detect the sealing status of the pipeline and the storage tank, improve the safety of taking materials from the large storage tank, and reduce leakage;

[0014] 2. By setting up a buffer tank, the material can be buffered before entering the storage tank to reduce the flow rate of the material before entering the storage tank, which can reduce the generation of foam and allow the material to flow slowly into the storage tank;

[0015] 3. By setting the first solenoid valve and the first pressure gauge, the pressure at the discharge point of the large storage tank can be observed, thereby adjusting the pressure of the storage tank;

[0016] 4. By setting up the second solenoid valve, the third solenoid valve and the second pressure gauge, it is possible to detect whether there is leakage in the pipeline before discharging the material. At the same time, the safety of unloading can be improved through two controls to avoid leakage during the unloading stage.

[0017] In summary, the utility model can provide unloading for large storage tanks, the whole process can complete the self-inspection of the airtightness of the device, and will not cause excessive erosion to the pipeline during the unloading stage. The whole unloading process is stable, safe and efficient. In the final discharge link, the valve can be operated frequently and is easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the implementation cases. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a schematic diagram of the top structure of an alcohol product unloading device proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the bottom structure of an alcohol product unloading device proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the sealed box structure of an alcohol product unloading device proposed by the utility model;

[0022] In the figure: 1 storage tank, 2 bracket, 3 pressure relief valve, 4 liquid level gauge, 5 three-way valve, 6 liquid inlet branch pipe, 7 buffer tank, 8 liquid inlet main pipe, 9 first solenoid valve, 10 first pressure gauge, 11 air inlet main pipe, 12 air inlet branch pipe, 13 liquid outlet branch pipe, 14 second solenoid valve, 15 liquid outlet main pipe, 16 second pressure gauge, 17 third solenoid valve, 18 sealing box, 19 gas monitoring sensor. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0024] See also Figure 1-3 , an alcohol product unloading device, the present application is mainly used for the unloading work of large alcohol storage tanks, can reduce the pressure shock after the storage tank is opened, and can also be opened frequently, specifically, including multiple storage tanks 1 fixed by a bracket 2, the storage tank 1 is made of fiberglass, and multiple storage tanks 1 can be used for storage work during operation, and the storage tank 1 is also equipped with a pressure relief valve 3 and a liquid level gauge 4, wherein the pressure relief valve 3 is used to control the pressure in the storage tank 1 to avoid excessive pressure in the storage tank 1. It should be understood that as a prior art, a pressure gauge is provided in the storage tank 1 to observe the pressure in the storage tank 1, and the liquid level gauge 4 is an electronic liquid level gauge used to monitor the real-time liquid level in the storage tank 1, and is used for monitoring work during buffering or unloading;

[0025] The upper ends of the plurality of storage tanks 1 are all equipped with a liquid inlet branch pipe 6 and an air inlet branch pipe 12 through a three-way valve 5, which can realize the control of closing the two outlets of the storage tank 1, connecting the storage tank 1 with the liquid inlet branch pipe 6, and connecting the air inlet branch pipe 12 with the storage tank 1. The plurality of liquid inlet branch pipes 6 are commonly connected with a liquid inlet main pipe 8 through a buffer tank 7. During the specific installation, the liquid inlet main pipe 8 is installed at the discharge port of the large storage tank, specifically through a flange connection, and the discharged material enters the storage tank 1 after being buffered by the buffer tank 7. The first solenoid valve 9 is installed on the liquid inlet main pipe 8, specifically an electromagnetic ball valve is used for the opening and closing work at the discharge of the large storage tank. It should be understood that a control valve is installed on the large storage tank, and the detection and unloading work of the present application is carried out when the control valve is opened. The first pressure gauge 10 is installed on the liquid inlet main pipe 8 at the position of the connecting flange and the first solenoid valve 9. The first pressure gauge 10 is used to monitor the pressure of the discharge port of the large storage tank, which is convenient for configuring the pressure in the storage tank 1 and reducing excessive pressure shock during unloading;

[0026] Specifically, a plurality of air intake branches 12 are connected to an air intake main pipe 11, and the air intake main pipe 11 is connected to the air source device. When the pressure of the first pressure gauge 10 is obtained, the three-way valve 5 on the corresponding storage tank 1 is opened, so that the storage tank 1 is connected to the air intake main pipe 11, and inert gas is injected into the storage tank 1 through the air intake main pipe 11 to reduce the pressure difference between the storage tank 1 and the outlet of the large storage tank, so that after the first solenoid valve 9 is opened, there will be no excessive flow shock in the pipeline, and the air enters the storage tank 1 after being buffered, which can not only protect the pipeline, but also reduce the generation of bubbles and increase the service life of the pipeline;

[0027] A liquid outlet branch pipe 13 is installed at the bottom of the storage tank 1. The two liquid outlet branch pipes 13 are connected to a liquid outlet main pipe 15 through a second solenoid valve 14. The second solenoid valve 14 is a three-way valve. Two storage tanks 1 are a group. When unloading materials, one is loaded through a large storage tank and the other is unloaded normally. They are used alternately to improve the unloading efficiency. A third solenoid valve 17 is installed on the liquid outlet main pipe 15. In the case of specific installation, the length of the liquid outlet main pipe 15 is long and needs to be led to a specific unloading point. Therefore, the second solenoid valve 14 is installed to control the opening and closing of the storage tank 1, and the third solenoid valve 17 is used for the liquid outlet main pipe 15. For unloading at the unloading site, a second pressure gauge 16 is installed at one end of the liquid outlet main pipe 15 close to the storage tank 1. The second pressure gauge 16 is installed at the unloading site. During the specific unloading, the second solenoid valve 14 is first opened to fill the pipeline with pressure. At this time, it is necessary to observe the pressure change of the second pressure gauge 16. If the pressure is constant, it means that the unloading pipeline is normal and the unloading is normal. If the second pressure gauge 16 changes, it means that there is a leakage. It is necessary to close all valves and notify the safety officer in time for inspection. After the inspection, unloading is carried out. The entire unloading process can be self-checked multiple times to ensure the safe operation of the unloading device.

[0028] In the present invention, the pressure relief valve 3 is connected to the waste gas treatment pipeline. Since the gas in the storage tank 1 is mixed with flammable gas, it must be treated by the waste gas treatment system in the factory.

[0029] In some embodiments, there are four storage tanks 1, two storage tanks 1 are commonly connected to a buffer tank 7, and two storage tanks 1 are commonly connected to a second solenoid valve 14. In this embodiment, two unloading points can be set to further improve the unloading efficiency. In specific operations, an even number of storage tanks 1 can be added to increase the unloading points and improve the unloading efficiency.

[0030] In some embodiments, in order to further test the safety of the present application, the storage tank 1 is installed in a sealed box 18 through a bracket 2, and a plurality of gas monitoring sensors 19 are installed in the sealed box 18. When a leak occurs in the storage tank 1 or at a connection, it can be detected in time through monitoring by the gas monitoring sensor 19, thereby further improving the safety of unloading.

[0031] In some embodiments, since alcohols need to be stored at low temperatures, the temperature of the material is relatively low, and the liquid inlet branch pipe 6 and the liquid inlet main pipe 8 are both coated with thermal insulation cotton to keep the material at a low temperature.

[0032] It can be seen from the above technical scheme that when the utility model is in use, the liquid inlet pipe 8 is connected to the discharge pipe of the methanol, ethanol, propanol and other storage tanks through a flange. Before discharging the material into the storage tank 1, an inert gas is first injected into the storage tank 1 through the air inlet pipe 11, so that the pressure in the storage tank 1 is lower than the measured value of the first pressure gauge 10 by 0.1-0.2 MPa, and then the pressure change in the storage tank 1 is observed. If a pressure change occurs, the detection valve is closed and the pipeline and the storage tank 1 are leaking. If there is no pressure change, the three-way valve 5 is opened to inject alcohol into the storage tank 1. For liquids, the pressure in the storage tank 1 is adjusted in real time through the pressure relief valve 3 to prevent excessive pressure. When the liquid level in the storage tank 1 reaches the set height, the three-way valve 5 is closed, and the storage tank 1 is used to discharge the material to a ton barrel, a tank truck, etc. When unloading, the second solenoid valve 14 is opened first to observe whether the second pressure gauge 16 fluctuates. If no fluctuation occurs, the third solenoid valve 17 is opened for normal unloading. When closing, the second solenoid valve 14 is closed first, and then the third solenoid valve 17 is closed. When one of the storage tanks 1 is unloading normally, the other storage tank 1 can be filled, and the work can be carried out separately.

[0033] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope of the present application is indicated by the claims.

[0034] It should be understood that the present application is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The above-described embodiments of the present application do not constitute a limitation on the scope of protection of the present application.

Claims

1. An alcohol product unloading device, comprising a plurality of storage tanks (1) fixed by a bracket (2), characterized in that: The storage tank (1) is also provided with a pressure relief valve (3) and a liquid level gauge (4). The upper ends of the plurality of storage tanks (1) are provided with a liquid inlet branch pipe (6) and an air inlet branch pipe (12) through a three-way valve (5). The plurality of liquid inlet branch pipes (6) are connected to a liquid inlet main pipe (8) through a buffer tank (7). The liquid inlet main pipe (8) is provided with a first solenoid valve (9). The liquid inlet main pipe (8) is provided with a first pressure gauge (10) at a position between a connecting flange and the first solenoid valve (9). The plurality of air inlet branch pipes (12) are connected to an air inlet main pipe (11). The bottom of the storage tank (1) is provided with a liquid outlet branch pipe (13). The two liquid outlet branch pipes (13) are connected to a liquid outlet main pipe (15) through a second solenoid valve (14). The liquid outlet main pipe (15) is provided with a third solenoid valve (17). The liquid outlet main pipe (15) is provided with a second pressure gauge (16) at one end thereof close to the storage tank (1).

2. The alcohol product unloading device according to claim 1, characterized in that: The pressure relief valve (3) is connected to the exhaust gas treatment pipeline.

3. The alcohol product unloading device according to claim 2, characterized in that: There are four storage tanks (1), two of the storage tanks (1) are commonly connected to a buffer tank (7), and two of the storage tanks (1) are commonly connected to a second solenoid valve (14).

4. The alcohol product unloading device according to claim 1, characterized in that: The storage tank (1) is installed in a sealed box (18) via a bracket (2), and a plurality of gas monitoring sensors (19) are installed in the sealed box (18).

5. The alcohol product unloading device according to claim 1, characterized in that: The liquid inlet branch pipe (6) and the liquid inlet main pipe (8) are both coated with thermal insulation cotton.

6. The alcohol product unloading device according to claim 1, characterized in that: The storage tank (1) is made of glass fiber reinforced plastic.

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