Automatic ammonia discharging device

Abstract

The utility model belongs to the technical field of ammonia water recovery, and discloses an automatic ammonia unloading device. The automatic ammonia unloading device comprises an ammonia water buffer tank, an ammonia unloading pump, an ammonia water storage tank and a liquid level detection mechanism, the ammonia water buffer tank is provided with an ammonia inlet and an ammonia outlet, the ammonia inlet can be communicated with an ammonia water tank car through a pipeline, the ammonia outlet is communicated with an inlet of the ammonia unloading pump through a pipeline, and an outlet of the ammonia unloading pump is communicated with the ammonia water storage tank through a pipeline. The liquid level detection mechanism is in communication connection with the ammonia unloading pump, at least part of the liquid level detection mechanism is arranged in the ammonia water buffer tank, and the liquid level detection mechanism is used for detecting the liquid level height in the ammonia water buffer tank. According to the automatic ammonia unloading device, manual operation is not needed in the ammonia unloading process, and the personal safety of ammonia unloading workers is protected to a great extent.

Description

Technical Field

[0001] This utility model relates to the field of ammonia storage technology, and in particular to an automatic ammonia unloading device. Background Technology

[0002] Ammonia, a commonly used hazardous chemical, is widely applied in the chemical and pharmaceutical industries. Ammonia is primarily transported by tanker trucks and ultimately unloaded into storage tanks. The unloading process involves ammonia unloading equipment. Existing unloading systems require workers to operate unloading pumps to control the ammonia flow. Workers have direct contact with the equipment and must operate electrical switches, significantly increasing the personal safety risks for unloading workers.

[0003] Therefore, there is an urgent need to provide an automatic ammonia unloading device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an automatic ammonia unloading device that can automatically transfer ammonia from an ammonia tanker to an ammonia storage tank without manual operation.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An automatic ammonia unloading device includes an ammonia buffer tank, an ammonia unloading pump, an ammonia storage tank, and a liquid level detection mechanism. The ammonia buffer tank has an ammonia inlet and an ammonia outlet. The ammonia inlet can be connected to an ammonia tanker truck through a pipeline. The ammonia outlet is connected to the inlet of the ammonia unloading pump through a pipeline. The outlet of the ammonia unloading pump is connected to the ammonia storage tank through a pipeline. The liquid level detection mechanism is communicatively connected to the ammonia unloading pump. The liquid level detection mechanism is at least partially installed inside the ammonia buffer tank and is used to detect the liquid level height inside the ammonia buffer tank.

[0007] As an optional solution, the liquid level detection mechanism includes a liquid level gauge and a solenoid valve. One end of the liquid level gauge extends into the ammonia buffer tank, and the other end extends out of the ammonia buffer tank and is connected to the solenoid valve. The solenoid valve is connected to the ammonia unloading pump via a wire. The liquid level gauge is configured to activate the solenoid valve when the liquid level in the ammonia buffer tank rises to a preset height, thereby connecting the power supply circuit between the solenoid valve and the ammonia unloading pump.

[0008] As an optional solution, the level gauge is a reed switch level gauge.

[0009] As an optional solution, the preset height is 2 / 3 of the height of the ammonia buffer tank.

[0010] As an optional solution, an air switch is provided on the power supply circuit between the solenoid valve and the ammonia unloading pump.

[0011] As an optional solution, the volume of the ammonia buffer tank is not less than 2.5 m2.

[0012] As an alternative, the ammonia inlet is located on the side of the ammonia buffer tank near the top surface, and the ammonia outlet is located on the side of the ammonia buffer tank near the bottom surface, with the ammonia inlet and the ammonia outlet facing different directions.

[0013] As an optional solution, a check valve is installed on the pipeline between the ammonia unloading pump and the ammonia storage tank. The check valve is used to enable unidirectional flow of ammonia from the ammonia unloading pump to the ammonia storage tank.

[0014] As an optional solution, the ammonia buffer tank is equipped with a flushing valve, which is located on the bottom surface of the ammonia buffer tank or on the side of the ammonia buffer tank near the bottom surface.

[0015] As an optional solution, a pressure relief valve connected to the top of the ammonia buffer tank is installed, and an ammonia mist absorber is installed on the top of the ammonia storage tank. The pressure relief valve and the ammonia mist absorber are connected by a pipeline.

[0016] The beneficial effects of this utility model are:

[0017] This invention provides an automatic ammonia unloading device. During ammonia unloading, the ammonia unloading pipeline of the ammonia tanker is connected to the ammonia inlet of the ammonia buffer tank. After opening the ammonia unloading valve of the ammonia tanker, the ammonia in the tanker flows into the ammonia buffer tank. During this process, a level detection mechanism monitors the liquid level in the ammonia buffer tank in real time. When the liquid level in the ammonia buffer tank rises to a preset level, the level detection mechanism triggers the ammonia unloading pump to start, transporting the ammonia in the buffer tank into the ammonia storage tank. After the ammonia in the tanker has been transported, no more ammonia flows into the ammonia buffer tank, and the liquid level in the buffer tank begins to drop. When the liquid level drops to the bottom of the buffer tank, the level detection mechanism triggers the ammonia unloading pump to shut down, stopping the ammonia transport. Workers can then disconnect the ammonia tanker from the ammonia buffer tank. The automatic ammonia unloading device provided by this invention eliminates the need for manual operation during the ammonia unloading process, greatly protecting the personal safety of ammonia unloading workers. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the automatic ammonia unloading device provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the ammonia buffer tank provided by this utility model.

[0020] In the picture:

[0021] 1. Ammonia tanker truck; 2. Ammonia buffer tank; 21. Ammonia inlet; 22. Ammonia outlet; 3. Ammonia unloading pump; 4. Ammonia storage tank; 5. Liquid level detection mechanism; 51. Liquid level gauge; 52. Solenoid valve; 6. Air switch; 7. Check valve; 8. Flushing valve; 9. Pressure relief valve; 10. Ammonia mist absorber. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0026] like Figure 1As shown, this embodiment provides an automatic ammonia unloading device, including an ammonia buffer tank 2, an ammonia unloading pump 3, an ammonia storage tank 4, and a liquid level detection mechanism 5. The ammonia buffer tank 2 is provided with an ammonia inlet 21 and an ammonia outlet 22. The ammonia inlet 21 can be connected to an ammonia tanker 1 through a pipeline. The ammonia outlet 22 is connected to the inlet of the ammonia unloading pump 3 through a pipeline. The outlet of the ammonia unloading pump 3 is connected to the ammonia storage tank 4 through a pipeline. The liquid level detection mechanism 5 is communicatively connected to the ammonia unloading pump 3. The liquid level detection mechanism 5 is at least partially installed inside the ammonia buffer tank 2 and is used to detect the liquid level height inside the ammonia buffer tank 2.

[0027] The automatic ammonia unloading device provided in this embodiment connects the ammonia unloading pipeline of the ammonia tanker truck 1 to the ammonia inlet 21 of the ammonia buffer tank 2 during ammonia unloading. After opening the ammonia unloading valve of the ammonia tanker truck 1, the ammonia in the ammonia tanker truck 1 flows into the ammonia buffer tank 2. During this process, the liquid level detection mechanism 5 monitors the liquid level in the ammonia buffer tank 2 in real time. When the liquid level in the ammonia buffer tank 2 rises to a preset height, the liquid level detection mechanism 5 triggers the ammonia unloading pump 3 to start, transporting the ammonia in the ammonia buffer tank 2 into the ammonia storage tank 4. After the ammonia in the ammonia tanker truck 1 has been transported, no more ammonia flows into the ammonia buffer tank 2, and the liquid level in the ammonia buffer tank 2 begins to drop. When the liquid level drops to the bottom of the ammonia buffer tank 2, the liquid level detection mechanism 5 triggers the ammonia unloading pump 3 to shut down, stopping the ammonia transport. The worker can then disconnect the ammonia tanker truck 1 and the ammonia buffer tank 2. This automatic ammonia unloading device requires no manual operation during the ammonia unloading process, greatly protecting the personal safety of the ammonia unloading workers.

[0028] Specifically, such as Figure 2 As shown, the liquid level detection mechanism 5 includes a liquid level gauge 51 and a solenoid valve 52. The liquid level gauge 51 is specifically a reed switch liquid level gauge. One end of the liquid level gauge 51 extends into the ammonia buffer tank 2, and the other end extends out of the ammonia buffer tank 2 and is connected to the solenoid valve 52. The solenoid valve 52 is connected to the ammonia unloading pump 3 through a wire. The liquid level gauge 51 is configured to activate the solenoid valve 52 when the liquid level in the ammonia buffer tank 2 rises to a preset height, so that the power supply circuit between the solenoid valve 52 and the ammonia unloading pump 3 is connected.

[0029] During operation, the float of level gauge 51 floats on the liquid surface. During ammonia unloading, the liquid level in ammonia buffer tank 2 gradually rises, causing the float of level gauge 51 to rise. When the liquid level reaches a preset height, the float triggers the solenoid valve 52 connected to level gauge 51 to engage. At this time, the power supply circuit of ammonia unloading pump 3 is activated, and ammonia unloading pump 3 starts, thereby transporting ammonia from ammonia buffer tank 2 into ammonia storage tank 4. After the ammonia in ammonia tanker truck 1 has been transported, no more ammonia flows into ammonia buffer tank 2, and the liquid level in ammonia buffer tank 2 begins to drop. When the float of level gauge 51 drops to the bottom of ammonia buffer tank 2, it triggers the solenoid valve 52 connected to level gauge 51 to disengage, disconnecting the power supply circuit of ammonia unloading pump 3, and stopping ammonia transport. The reed switch level gauge and solenoid valve 52 are existing technologies and will not be described in detail here.

[0030] In one optional embodiment, the preset height is 2 / 3 of the height of the ammonia buffer tank 2. That is, when the liquid level in the ammonia buffer tank 2 rises to 2 / 3 of the height of the ammonia buffer tank 2, the solenoid valve 52 is engaged and the ammonia unloading pump 3 is started, thereby timely transporting the ammonia in the ammonia buffer tank 2 into the ammonia storage tank 4, preventing the ammonia in the ammonia buffer tank 2 from overflowing due to overfilling.

[0031] Furthermore, such as Figure 1 As shown, an air switch 6 is installed in the power supply circuit between the solenoid valve 52 and the ammonia unloading pump 3. The air switch 6 is a switch that automatically disconnects when the current in the power supply circuit exceeds the rated current, providing overcurrent protection to protect the circuit and equipment and ensure the normal operation of the ammonia unloading pump 3.

[0032] In an optional embodiment, the volume of the ammonia buffer tank 2 is not less than 2.5 m³. 2 This configuration ensures that the ammonia buffer tank 2 has sufficient capacity to hold the ammonia.

[0033] In one optional embodiment, the ammonia inlet 21 is located on the side of the ammonia buffer tank 2 near the top surface, and the ammonia outlet 22 is located on the side of the ammonia buffer tank 2 near the bottom surface, with the inlet 21 and outlet 22 facing different directions. By rationally arranging the positions of the inlet 21 and outlet 22, the layout of each pipeline can be optimized, avoiding a cluttered pipeline system.

[0034] Furthermore, such as Figure 1 As shown, a check valve 7 is installed on the pipeline between the ammonia unloading pump 3 and the ammonia storage tank 4. The check valve 7 is used to achieve unidirectional flow of ammonia from the ammonia unloading pump 3 to the ammonia storage tank 4. By using the check valve 7 near the outlet of the ammonia unloading pump 3, the backflow of ammonia can be prevented, effectively preventing the risk of leakage caused by the backflow of ammonia in the ammonia storage tank 4 under special circumstances.

[0035] Understandably, ammonia is volatile. Therefore, during the ammonia unloading process, ammonia gas will be generated in the ammonia storage tank 4. If released into the external environment, the ammonia gas can mix with air to form an explosive gas, which is detrimental to the surrounding environment and personnel. Therefore, although ammonia is a common chemical raw material widely used in the chemical and pharmaceutical industries, its hazards cannot be ignored.

[0036] Therefore, in this embodiment, in order to achieve ammonia recovery, such as... Figure 1 As shown, a pressure relief valve 9 is installed on the top of the ammonia buffer tank 2, and an ammonia mist absorber 10 is installed on the top of the ammonia storage tank 4. The pressure relief valve 9 and the ammonia mist absorber 10 are connected by a pipeline. After the ammonia is unloaded, the pressure relief valve 9 is opened, and the ammonia gas volatilized in the ammonia storage tank 4 is introduced into the ammonia mist absorber 10 of the ammonia storage tank 4 through the pipeline, thereby recovering the ammonia gas and preventing the ammonia gas from being released into the atmosphere and affecting the surrounding environment and personnel. The structure and working principle of the ammonia mist absorber 10 are existing technologies and will not be described in detail here.

[0037] Optionally, a check valve 7 can also be installed on the pipeline between the pressure relief valve 9 and the ammonia mist absorber 10. The check valve 7 is used to realize the unidirectional flow of ammonia from the pressure relief valve 9 to the ammonia mist absorber 10, which can prevent ammonia backflow and effectively avoid the leakage risk caused by ammonia backflow.

[0038] Furthermore, such as Figure 2 As shown, a flushing valve 8 is installed on the ammonia buffer tank 2. The flushing valve 8 is located on the bottom surface of the ammonia buffer tank 2 or on the side of the ammonia buffer tank 2 near the bottom surface. When the ammonia buffer tank 2 needs maintenance and cleaning, an external pipeline and water source can be connected through the flushing valve 8 to flush the ammonia buffer tank. At this time, the outlet of the pressure relief valve 9 can be temporarily disconnected from the pipeline as the cleaning outlet. By setting up the flushing valve 8, the cleaning and maintenance of the ammonia buffer tank 2 can be made more convenient.

[0039] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An automatic ammonia unloading device, characterized in that, The system includes an ammonia buffer tank (2), an ammonia unloading pump (3), an ammonia storage tank (4), and a liquid level detection mechanism (5). The ammonia buffer tank (2) is provided with an ammonia inlet (21) and an ammonia outlet (22). The ammonia inlet (21) can be connected to an ammonia tanker (1) through a pipeline. The ammonia outlet (22) is connected to the inlet of the ammonia unloading pump (3) through a pipeline. The outlet of the ammonia unloading pump (3) is connected to the ammonia storage tank (4) through a pipeline. The liquid level detection mechanism (5) is communicatively connected to the ammonia unloading pump (3). The liquid level detection mechanism (5) is at least partially installed inside the ammonia buffer tank (2) and is used to detect the liquid level height inside the ammonia buffer tank (2).

2. The automatic ammonia unloading device according to claim 1, characterized in that, The liquid level detection mechanism (5) includes a liquid level gauge (51) and a solenoid valve (52). One end of the liquid level gauge (51) extends into the ammonia buffer tank (2), and the other end extends out of the ammonia buffer tank (2) and is connected to the solenoid valve (52). The solenoid valve (52) is connected to the ammonia unloading pump (3) by a wire. The liquid level gauge (51) is configured to activate the solenoid valve (52) when the liquid level in the ammonia buffer tank (2) rises to a preset height, so that the power supply circuit between the solenoid valve (52) and the ammonia unloading pump (3) is connected.

3. The automatic ammonia unloading device according to claim 2, characterized in that, The level gauge (51) is a reed switch level gauge.

4. The automatic ammonia unloading device according to claim 2, characterized in that, The preset height is 2 / 3 of the height of the ammonia buffer tank (2).

5. The automatic ammonia unloading device according to claim 2, characterized in that, An air switch (6) is provided on the power supply circuit between the solenoid valve (52) and the ammonia unloading pump (3).

6. The automatic ammonia unloading device according to any one of claims 1-5, characterized in that, The volume of the ammonia buffer tank (2) is not less than 2.5 m³. 2 .

7. The automatic ammonia unloading device according to any one of claims 1-5, characterized in that, The ammonia inlet (21) is located on the side of the ammonia buffer tank (2) near the top surface, and the ammonia outlet (22) is located on the side of the ammonia buffer tank (2) near the bottom surface. The ammonia inlet (21) and the ammonia outlet (22) have different orientations.

8. The automatic ammonia unloading device according to any one of claims 1-5, characterized in that, A check valve (7) is installed on the pipeline between the ammonia unloading pump (3) and the ammonia storage tank (4). The check valve (7) is used to enable the unidirectional flow of ammonia from the ammonia unloading pump (3) to the ammonia storage tank (4).

9. The automatic ammonia unloading device according to any one of claims 1-5, characterized in that, A flushing valve (8) is installed on the ammonia buffer tank (2), and the flushing valve (8) is located on the bottom surface of the ammonia buffer tank (2) or on the side of the ammonia buffer tank (2) near the bottom surface.

10. The automatic ammonia unloading device according to any one of claims 1-5, characterized in that, The ammonia buffer tank (2) is equipped with a pressure relief valve (9) connected to it, and the ammonia storage tank (4) is equipped with an ammonia mist absorber (10) on its top. The pressure relief valve (9) and the ammonia mist absorber (10) are connected by a pipeline.

Images