Methyl ethyl carbonate loading device

Abstract

The utility model relates to a methyl ethyl carbonate loading device. According to the technical scheme, one side of the top of a methyl ethyl carbonate finished product tank is connected with a nitrogen self-operated regulating valve and an emptying self-operated regulating valve through pipelines, a remote liquid level meter is installed on a side line, a feeding stop valve is installed on one side of the bottom, a discharging stop valve is installed on the other side of the bottom, and the outer end of the discharging stop valve is connected with a loading pump through a pipeline. The output end of the loading pump is connected with a flowmeter and a liquid loading and unloading vertical pipe through a pipeline and a loading stop valve, and then is communicated with an automobile tank car through a liquid loading and unloading inner arm, a liquid loading and unloading outer arm and a rotary joint which are connected in sequence for loading; the methyl ethyl carbonate loading control device has the advantages that the nitrogen self-operated regulating valve, the emptying self-operated regulating valve, the liquid level meter with the remote transmission function and the pressure meter are installed, control over methyl ethyl carbonate in the loading process is achieved, the feeding stop valve and the discharging stop valve are further arranged, and the methyl ethyl carbonate loading control device is simple in structure and convenient to operate. And the storage tank can be ensured to be in a normal operation state during delivery.

Description

Technical Field

[0001] The utility model relates to the technical field of loading ethyl methyl carbonate, and particularly relates to a loading device for ethyl methyl carbonate. Background Art

[0002] Ethyl methyl carbonate is an organic compound, which is a colorless transparent liquid, insoluble in water, and can be used in organic synthesis. It is an excellent solvent for lithium-ion battery electrolytes. The storage method of ethyl methyl carbonate is to store it in a sealed container, in a cool, ventilated and dry place, and store and transport it according to the regulations for flammable chemicals. Ethyl methyl carbonate is an organic compound with flammable and volatile properties and belongs to one of the dangerous goods. Ethyl methyl carbonate can be transported by tank trucks, which usually have safety devices such as safety valves, pressure relief ports, and anti-collision protection devices to ensure safety during transportation. However, there is no dedicated loading equipment for ethyl methyl carbonate liquid in the prior art, which poses certain safety hazards. Content of the Utility Model

[0003] The purpose of the utility model is to provide a loading device for ethyl methyl carbonate aiming at the above-mentioned defects existing in the prior art. A nitrogen self-operated regulating valve, a vent self-operated regulating valve, a breather valve, a liquid level gauge, a pressure gauge and a thermometer with remote transmission function are installed on the finished product tank of ethyl methyl carbonate to realize the control during the loading of ethyl methyl carbonate. An inlet cut-off valve and an outlet cut-off valve are also designed to ensure the normal operation of the storage tank during receiving and shipping.

[0004] A loading device for ethyl methyl carbonate mentioned in the utility model has the following technical solution: it includes a nitrogen self-operated regulating valve (a2), a vent self-operated regulating valve (a3), a remote transmission liquid level gauge (a6), an inlet cut-off valve (a8), an outlet cut-off valve (a9), a loading pump (a12), a loading cut-off valve (b1), a flowmeter (b2), an anti-overflow probe (b7), a flow switch (b8), a quantitative loading plc system (b9), a liquid loading vertical pipe (c1), a liquid loading inner arm (c2), a liquid loading outer arm (c3), and a rotary joint (c4).

[0005] On one side of the top of the ethyl methyl carbonate finished product tank (a1), a nitrogen self-operated regulating valve (a2) and a vent self-operated regulating valve (a3) are connected through pipelines. A remote transmission liquid level gauge (a6) is installed on the side line of the ethyl methyl carbonate finished product tank (a1), a feed cut-off valve (a8) is installed on one side of the bottom, and a discharge cut-off valve (a9) is installed on the other side. The outer end of the discharge cut-off valve (a9) is connected to a loading pump (a12) through a pipeline. The output end of the loading pump (a12) is connected to a flow meter (b2) and a liquid loading vertical pipe (c1) through a pipeline and a loading cut-off valve (b1), and then is connected to a road tanker (c5) through a connected liquid loading inner arm (c2), a liquid loading outer arm (c3) and a rotary joint (c4) in sequence for loading; An anti-overflow probe (b7) and a flow switch (b8) are installed on the road tanker (c5).

[0006] The quantitative loading PLC system (b9) is connected to the remote transmission liquid level gauge (a6), the feed cut-off valve (a8), the discharge cut-off valve (a9), the loading pump (a12), the anti-overflow probe (b7) and the flow switch (b8) through control lines. The anti-overflow probe (b7) detects the liquid level of ethyl methyl carbonate in the road tanker (c5), and the remote transmission liquid level gauge (a6) detects the liquid level of the ethyl methyl carbonate finished product tank (a1), and transmits the signals to the quantitative loading PLC system (b9), and controls the opening and closing of the loading cut-off valve (b1) through the quantitative loading PLC system (b9) to complete the loading.

[0007] Preferably, a remote transmission thermometer (a7) is installed at the bottom of the ethyl methyl carbonate finished product tank (a1), a pressure relief manhole (a4), a remote transmission pressure gauge (a5) and a breather valve (a10) are installed at the top of the ethyl methyl carbonate finished product tank (a1). The outlet ends of the breather valve (a10) and the vent self-operated regulating valve (a3) are respectively connected to an exhaust gas processor (a11) through pipelines.

[0008] Preferably, the above-mentioned feed cut-off valve (a8) and discharge cut-off valve (a9) form an interlock structure. When the liquid level of the ethyl methyl carbonate finished product tank (a1) is higher than the highest control line of the remote transmission liquid level gauge (a6), the feed cut-off valve (a8) is controlled to close through the quantitative loading PLC system (b9); When the liquid level of the ethyl methyl carbonate finished product tank (a1) is lower than the lowest control line of the remote transmission liquid level gauge (a6), the discharge cut-off valve (a9) is controlled to close through the quantitative loading PLC system (b9).

[0009] Preferably, a vehicle static electricity releaser (b3) is installed on the above-mentioned road tanker (c5), and an exhaust gas processor (a11) is connected through a pipeline above the flow switch (b8).

[0010] Preferably, an electrostatic releaser (b4) and a combustible gas alarm (b5) are installed on one side of the above-mentioned liquid loading vertical pipe (c1).

[0011] Preferably, the outer end of the above nitrogen self-acting regulating valve (a2) is connected to a nitrogen storage tank (a13). One end of the breathing valve (a10) is connected to the nitrogen storage tank (a13) through a pipeline, and the other end is connected to an exhaust gas processor (a11) through a pipeline; the outer end of the venting self-acting regulating valve (a3) is connected to the exhaust gas processor (a11) through a pipeline.

[0012] The beneficial effects of the present utility model are as follows: By installing a nitrogen self-acting regulating valve, a venting self-acting regulating valve, and a breathing valve on the finished product tank of ethyl methyl carbonate and connecting them to an exhaust gas processor, the situation of polluting the air during the loading process can be avoided; By providing a quantitative loading PLC system, a liquid level gauge, a pressure gauge, and a thermometer with remote transmission functions, the automatic control of ethyl methyl carbonate during loading can be achieved; The present utility model also designs an inlet cut-off valve and an outlet cut-off valve to ensure the normal operation of the storage tank during receiving and dispatching; In addition, by installing an anti-overflow probe on the road tanker, better loading control can be achieved in combination with the loading cut-off valve and the flow meter, reducing the risks generated during loading, improving the loading efficiency, and reducing environmental pollution. Brief Description of the Drawings

[0013] Figure 1 is a connection schematic diagram of Embodiment 1 of the present utility model;

[0014] Figure 2 is a connection schematic diagram of Embodiment 2 of the present utility model;

[0015] In the above figure: finished product tank of ethyl methyl carbonate a1, nitrogen self-acting regulating valve a2, venting self-acting regulating valve a3, pressure relief manhole a4, remote transmission pressure gauge a5, remote transmission liquid level gauge a6, remote transmission thermometer a7, inlet cut-off valve a8, outlet cut-off valve a9, breathing valve a10, exhaust gas processor a11, loading pump a12, nitrogen storage tank a13, loading cut-off valve b1, flow meter b2, vehicle static electricity release device b3, static electricity release device b4, combustible gas alarm b5, anti-overflow probe b7, flow switch b8, quantitative loading PLC system b9, liquid loading vertical pipe c1, liquid loading inner arm c2, liquid loading outer arm c3, swivel joint c4, road tanker c5. Detailed Embodiments

[0016] The following describes the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model and are not used to limit the present utility model.

[0017] Embodiment 1, refer to Figure 1, a methyl ethyl carbonate loading device mentioned in the present utility model includes a nitrogen self-operated regulating valve a2, a vent self-operated regulating valve a3, a remote transmission liquid level gauge a6, a feed cut-off valve a8, a discharge cut-off valve a9, a loading pump a12, a loading cut-off valve b1, a flow meter b2, an anti-overflow probe b7, a flow switch b8, a quantitative loading plc system b9, a liquid loading and unloading vertical pipe c1, a liquid loading and unloading inner arm c2, a liquid loading and unloading outer arm c3, and a rotary joint c4.

[0018] On one side of the top of the methyl ethyl carbonate finished product tank a1, the nitrogen self-operated regulating valve a2 and the vent self-operated regulating valve a3 are connected through pipelines. A remote transmission liquid level gauge a6 is installed on the side line of the methyl ethyl carbonate finished product tank a1, a feed cut-off valve a8 is installed on one side of the bottom, and a discharge cut-off valve a9 is installed on the other side. The outer end of the discharge cut-off valve a9 is connected to the loading pump a12 through a pipeline. The output end of the loading pump a12 is connected to the flow meter b2 and the liquid loading and unloading vertical pipe c1 through a pipeline and the loading cut-off valve b1, and then is communicated with the tanker truck c5 through the connected liquid loading and unloading inner arm c2, liquid loading and unloading outer arm c3 and rotary joint c4 for loading; an anti-overflow probe b7 and a flow switch b8 are installed on the tanker truck c5.

[0019] The quantitative loading plc system b9 is connected to the remote transmission liquid level gauge a6, the feed cut-off valve a8, the discharge cut-off valve a9, the loading pump a12, the anti-overflow probe b7 and the flow switch b8 through control lines. The anti-overflow probe b7 detects the liquid level of methyl ethyl carbonate in the tanker truck c5, and the remote transmission liquid level gauge a6 detects the liquid level of the methyl ethyl carbonate finished product tank a1, and transmits the signals to the quantitative loading plc system b9, and controls the opening and closing of the loading cut-off valve b1 through the quantitative loading plc system b9 to complete the loading.

[0020] It should be noted that: the quantitative loading plc system b9 is a well-known prior art to those skilled in the art and will not be elaborated here.

[0021] In addition, a remote transmission thermometer a7 is installed at the bottom of the methyl ethyl carbonate finished product tank a1, a pressure relief manhole a4, a remote transmission pressure gauge a5 and a breather valve a10 are installed at the top of the methyl ethyl carbonate finished product tank a1, and the outlet ends of the breather valve a10 and the vent self-operated regulating valve a3 are respectively connected to an exhaust gas processor a11 through pipelines.

[0022] The feed cut-off valve a8 and the discharge cut-off valve a9 mentioned in the present utility model form an interlocking structure. When the liquid level of the methyl ethyl carbonate finished product tank a1 is higher than the highest control line of the remote transmission liquid level gauge a6, the feed cut-off valve a8 is controlled to close through the quantitative loading plc system b9; when the liquid level of the methyl ethyl carbonate finished product tank a1 is lower than the lowest control line of the remote transmission liquid level gauge a6, the discharge cut-off valve a9 is controlled to close through the quantitative loading plc system b9.

[0023] Among them, a vehicle static electricity eliminator b3 is installed on the above-mentioned road tanker c5, and an exhaust gas processor a11 is connected through a pipeline above the flow switch b8.

[0024] An electrostatic eliminator b4 and a combustible gas alarm b5 are installed on one side of the above-mentioned liquid loading and unloading vertical pipe c1, improving the safety guarantee effect.

[0025] In addition, the outer end of the nitrogen self-operated regulating valve a2 mentioned in the present utility model is connected to a nitrogen storage tank a13, and the other end is connected to the exhaust gas processor a11 through a pipeline; the outer end of the vent self-operated regulating valve a3 is connected to the exhaust gas processor a11 through a pipeline.

[0026] When the present utility model is used, by installing a nitrogen self-operated regulating valve, a vent self-operated regulating valve, and a breather valve on the methyl ethyl carbonate finished product tank and connecting them to the exhaust gas processor, the situation of polluting the air during the loading process can be avoided; by providing a quantitative loading PLC system, a liquid level gauge, a pressure gauge, and a thermometer with remote transmission functions, the automatic control of methyl ethyl carbonate during loading can be realized; the present utility model also designs a feed cut-off valve and a discharge cut-off valve to ensure the normal operation of the storage tank during receiving and shipping; in addition, an anti-overflow probe is installed on the road tanker, which can combine with the loading cut-off valve and the flow meter to achieve better loading control, reduce the risks generated during loading, improve the loading efficiency, and reduce environmental pollution.

[0027] Embodiment 2, a methyl ethyl carbonate loading device mentioned in the present utility model includes a nitrogen self-operated regulating valve a2, a vent self-operated regulating valve a3, a remote transmission liquid level gauge a6, a feed cut-off valve a8, a discharge cut-off valve a9, a loading pump a12, a loading cut-off valve b1, a flow meter b2, an anti-overflow probe b7, a flow switch b8, a quantitative loading PLC system b9, a liquid loading and unloading vertical pipe c1, a liquid loading and unloading inner arm c2, a liquid loading and unloading outer arm c3, and a rotary joint c4.

[0028] On one side of the top of the methyl ethyl carbonate finished product tank a1, a nitrogen self-operated regulating valve a2 and a vent self-operated regulating valve a3 are connected through a pipeline. A remote transmission liquid level gauge a6 is installed on the side line of the methyl ethyl carbonate finished product tank a1, a feed cut-off valve a8 is installed on one side of the bottom, and a discharge cut-off valve a9 is installed on the other side. The outer end of the discharge cut-off valve a9 is connected to the loading pump a12 through a pipeline. The output end of the loading pump a12 is connected to the flow meter b2 and the liquid loading and unloading vertical pipe c1 through a pipeline and a loading cut-off valve b1, and then is connected to the road tanker c5 through the connected liquid loading and unloading inner arm c2, liquid loading and unloading outer arm c3, and rotary joint c4 for loading; an anti-overflow probe b7 and a flow switch b8 are installed on the road tanker c5.

[0029] The quantitative loading PLC system B9 is connected to the remote liquid level gauge A6, the inlet cut-off valve A8, the outlet cut-off valve A9, the loading pump A12, the anti-overflow probe B7, and the flow switch B8 through control lines. The anti-overflow probe B7 detects the liquid level of ethyl methyl carbonate in the road tanker C5, and the remote liquid level gauge A6 detects the liquid level of the ethyl methyl carbonate finished product tank A1, and transmits the signal to the quantitative loading PLC system B9. The on-off of the loading cut-off valve B1 is controlled by the quantitative loading PLC system B9 to complete the loading.

[0030] The difference from Embodiment 1 is that:

[0031] Refer to Figure 2 , the outlet ends of the breather valve A10 and the vent self-operated regulating valve A3 in this embodiment are connected to the waste gas processor A11 through pipelines, and the left end of the breather valve A10 is not connected to the nitrogen storage tank A13.

[0032] The above are only the preferred embodiments of the present invention. Any person skilled in the art may modify the present invention by using the technical solutions described above or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent transformation made according to the technical solutions of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A methyl ethyl carbonate loading device, characterized in that: It includes nitrogen self-operated regulating valve (a2), venting self-operated regulating valve (a3), remote liquid level meter (a6), feed cut-off valve (a8), discharge cut-off valve (a9), loading pump (a12), loading cut-off valve (b1), flow meter (b2), anti-overflow probe (b7), flow switch (b8), quantitative loading PLC system (b9), liquid loading and unloading vertical pipe (c1), liquid loading and unloading inner arm (c2), liquid loading and unloading outer arm (c3), swivel joint (c4), A nitrogen self-operated regulating valve (a2) and a venting self-operated regulating valve (a3) ​​are connected to one side of the top of the ethyl methyl carbonate finished product tank (a1) through a pipeline, a remote liquid level meter (a6) is installed on the side line of the ethyl methyl carbonate finished product tank (a1), a feed cut-off valve (a8) is installed on one side of the bottom, and a discharge cut-off valve (a9) is installed on the other side, the outer end of the discharge cut-off valve (a9) is connected to a loading pump (a12) through a pipeline, the output end of the loading pump (a12) is connected to a flow meter (b2) and a liquid loading and unloading vertical pipe (c1) through a pipeline and a loading cut-off valve (b1), and then connected to a tank truck (c5) through a connected liquid loading and unloading inner arm (c2), a liquid loading and unloading outer arm (c3) and a rotary joint (c4) for loading; an anti-overflow probe (b7) and a flow switch (b8) are installed on the tank truck (c5), The quantitative loading PLC system (B9) is connected to the remote level meter (A6), the feed shut-off valve (A8), the discharge shut-off valve (A9), the loading pump (A12), the overflow prevention probe (B7) and the flow switch (B8) through control lines. The overflow prevention probe (B7) detects the liquid level of ethyl methyl carbonate in the tank truck (C5), and the remote level meter (A6) detects the liquid level of the ethyl methyl carbonate finished product tank (A1), and transmits the signal to the quantitative loading PLC system (B9). The quantitative loading PLC system (B9) controls the on and off of the loading shut-off valve (B1) to complete the loading.

2. The ethyl methyl carbonate loading device according to claim 1, wherein: A remote temperature meter (a7) is installed at the bottom of the ethyl methyl carbonate finished product tank (a1), and a pressure relief manhole (a4), a remote pressure gauge (a5) and a breathing valve (a10) are installed at the top of the ethyl methyl carbonate finished product tank (a1). The outlet ends of the breathing valve (a10) and the venting self-operated regulating valve (a3) ​​are respectively connected to the exhaust gas processor (a11) through pipelines.

3. The ethyl methyl carbonate loading device according to claim 2, characterized in that: The feed cut-off valve (a8) and the discharge cut-off valve (a9) form an interlocking structure. When the liquid level of the ethyl methyl carbonate finished product tank (a1) is higher than the highest control line of the remote liquid level gauge (a6), the feed cut-off valve (a8) is closed by the quantitative loading PLC system (b9); when the liquid level of the ethyl methyl carbonate finished product tank (a1) is lower than the lowest control line of the remote liquid level gauge (a6), the discharge cut-off valve (a9) is closed by the quantitative loading PLC system (b9).

4. The ethyl methyl carbonate loading device according to claim 3, characterized in that: The vehicle tank truck (c5) is equipped with a vehicle electrostatic releaser (b3), which is connected to an exhaust gas processor (a11) via a pipeline above a flow switch (b8).

5. The ethyl methyl carbonate loading device according to claim 4, characterized in that: An electrostatic releaser (b4) and a combustible gas alarm (b5) are installed on one side of the liquid loading and unloading vertical pipe (c1).

6. The ethyl methyl carbonate loading device according to claim 2, characterized in that: The outer end of the nitrogen self-operated regulating valve (a2) is connected to the nitrogen storage tank (a13), one end of the breathing valve (a10) is connected to the nitrogen storage tank (a13) through a pipeline, and the other end is connected to the exhaust gas processor (a11) through a pipeline; the outer end of the venting self-operated regulating valve (a3) ​​is connected to the exhaust gas processor (a11) through a pipeline.

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