Separating and liquid discharging device of gas-liquid double-cavity mixed transportation system

Abstract

The utility model relates to a separating and liquid discharging device of a gas-liquid double-cavity mixed conveying system, which comprises a gas-liquid separator, a first circulating tank, a second circulating tank and an interlocking mechanism, and the gas-liquid separator is provided with a first gas-liquid mixture input pipe, a second gas-liquid mixture input pipe, an exhaust pipe and a liquid discharging pipe. The top of the first circulation tank is provided with a first multipurpose connecting pipe communicated with the first gas-liquid mixture input pipe through a first one-way gas-liquid mixture conveying pipeline, and the top of the second circulation tank is provided with a second multipurpose connecting pipe communicated with the second gas-liquid mixture input pipe through a second one-way gas-liquid mixture conveying pipeline. A third pneumatic valve is installed on the liquid discharging pipe and communicated with the first multipurpose connecting pipe and the second multipurpose connecting pipe through a first one-way liquid conveying pipeline and a second one-way liquid conveying pipeline. The device has the beneficial effects that the first circulating tank and the second circulating tank alternately convey a gas-liquid mixture, and meanwhile, high-pressure gas distribution and automatic closed liquid drainage are achieved.

Description

Technical Field

[0001] The utility model relates to the field of gas-liquid dual-cavity mixed transmission equipment, in particular to a separation and drainage device for a gas-liquid dual-cavity mixed transmission system. Background Art

[0002] On the premise of realizing gas-liquid mixed transmission by using the gas-liquid dual-cavity mixed transmission device, the high-pressure gas separation function is realized, and the separated gas cannot contain liquid; because the separated natural gas is wet gas, the separation and liquid discharge function must be considered at the same time; in order to improve the level of automation, automatic closed liquid discharge must be considered. Utility Model Content

[0003] The purpose of the utility model is to overcome the above problems existing in the prior art and to provide a separation and drainage device for a gas-liquid dual-chamber mixed transmission system.

[0004] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0005] A separation and drainage device for a gas-liquid dual-cavity mixed transmission system comprises a gas-liquid separator, a first circulation tank, a second circulation tank, and an interlocking mechanism. The gas-liquid separator is provided with a first gas-liquid mixture input pipe, a second gas-liquid mixture input pipe, an exhaust pipe, and a drainage pipe. A first multi-purpose connecting pipe is provided on the top of the first circulation tank, and the first multi-purpose connecting pipe is connected to the first gas-liquid mixture input pipe through a first unidirectional gas-liquid mixture delivery pipeline. A second multi-purpose connecting pipe is provided on the top of the second circulation tank, and the second multi-purpose connecting pipe is connected to the second gas-liquid mixture input pipe through a second unidirectional gas-liquid mixture delivery pipeline. A third pneumatic valve is installed on the drainage pipe, and the third pneumatic valve is connected to the first multi-purpose connecting pipe through a first unidirectional liquid delivery pipeline, and the third pneumatic valve is connected to the second multi-purpose connecting pipe through a second unidirectional liquid delivery pipeline. The interlocking mechanism is respectively connected to the first circulation tank, the second circulation tank, and the third pneumatic valve.

[0006] Among them, one end of the third pneumatic valve away from the discharge pipe is connected to a third three-way connector through the first infusion pipe, and the first interface of the third three-way connector is connected to the first infusion pipe.

[0007] Among them, a first stop valve is installed on the first multi-purpose connecting pipe, and the end of the first stop valve away from the first multi-purpose connecting pipe is connected to the first three-way joint through the first multi-purpose delivery pipe, and the No. 1 interface of the first three-way joint is connected to the first multi-purpose delivery pipe; the first one-way gas-liquid mixture delivery pipeline includes a first pressure switch installed on the first circulation tank and a first mixture delivery pipe, a first pneumatic valve, a second mixture delivery pipe, and a first one-way valve connected in sequence, the signal output end of the first pressure switch is connected to the signal input end of the first pneumatic valve through a cable, the end of the first mixture delivery pipe away from the first pneumatic valve is connected to the No. 2 interface of the first three-way joint, and the end of the first one-way valve away from the second mixture delivery pipe is connected to the first gas-liquid mixture input pipe; the first one-way liquid delivery pipeline includes a first infusion pipe, a third one-way valve, a second infusion pipe, a third stop valve, and a third infusion pipe connected in sequence, the end of the first infusion pipe away from the third one-way valve is connected to the No. 2 interface of the third three-way joint, and the end of the third infusion pipe away from the third stop valve is connected to the No. 3 interface of the first three-way joint.

[0008] Among them, a second stop valve is installed on the second multi-purpose connecting pipe, and the end of the second stop valve away from the second multi-purpose connecting pipe is connected to the second three-way joint through the second multi-purpose delivery pipe, and the No. 1 interface of the second three-way joint is connected to the second multi-purpose delivery pipe; the second one-way gas-liquid mixture delivery pipeline includes a second pressure switch installed on the second circulation tank and a third mixture delivery pipe, a second pneumatic valve, a fourth mixture delivery pipe, and a second one-way valve connected in sequence, the signal output end of the second pressure switch is connected to the signal input end of the second pneumatic valve through a cable, the end of the third mixture delivery pipe away from the second pneumatic valve is connected to the No. 2 interface of the second three-way joint, and the end of the second one-way valve away from the fourth mixture delivery pipe is connected to the second gas-liquid mixture input pipe; the second one-way liquid delivery pipeline includes a fourth infusion pipe, a fourth one-way valve, a fifth infusion pipe, a fourth stop valve, and a sixth infusion pipe connected in sequence, the end of the fourth infusion pipe away from the fourth one-way valve is connected to the No. 3 interface of the third three-way joint, and the end of the sixth infusion pipe away from the fourth one-way valve is connected to the No. 3 interface of the second three-way joint.

[0009] Among them, the interlocking mechanism includes a time relay, a first liquid level switch installed on the first circulation tank, and a second liquid level switch installed on the second circulation tank. The signal output end of the first liquid level switch and the signal output end of the second liquid level switch are respectively connected to the signal input end of the time relay through cables, and the signal output end of the time relay is connected to the signal input end of the third pneumatic valve through a cable.

[0010] Wherein, the gas-liquid separator is one of a gravity sedimentation type gas-liquid separator, a baffle type gas-liquid separator, a wire mesh type gas-liquid separator, and a packing type gas-liquid separator.

[0011] The first gas-liquid mixture input pipe and the second gas-liquid mixture input pipe are respectively located on the side walls of the gas-liquid separator, the exhaust pipe is located on the top of the gas-liquid separator, and the liquid discharge pipe is located at the bottom of the gas-liquid separator.

[0012] The beneficial effect of the utility model is that through the cooperation of the gas-liquid separator, the first pneumatic valve, the second pneumatic valve and the third pneumatic valve, the first circulation tank and the second circulation tank realize high-pressure gas separation and automatic closed liquid discharge while alternately conveying the gas-liquid mixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Explanation of reference numerals in the figure: gas-liquid separator 1, first circulation tank 2, second circulation tank 3, first gas-liquid mixture input pipe 4, second gas-liquid mixture input pipe 5, exhaust pipe 6, drain pipe 7, first multi-purpose connecting pipe 8, second multi-purpose connecting pipe 9, first stop valve 10, first multi-purpose delivery pipe 11, first three-way joint 12, first mixture delivery pipe 13, first pneumatic valve 14, second mixture delivery pipe 15, first one-way valve 16, first pressure switch 17, second stop valve 18, second multi-purpose delivery pipe 19, second three-way joint 2 0, third mixture delivery pipe 21, second pneumatic valve 22, fourth mixture delivery pipe 23, second one-way valve 24, second pressure switch 25, third pneumatic valve 26, first infusion pipe 27, third three-way connector 28, first infusion pipe 29, third one-way valve 30, second infusion pipe 31, third stop valve 32, third infusion pipe 33, fourth infusion pipe 34, fourth one-way valve 35, fifth infusion pipe 36, fourth stop valve 37, sixth infusion pipe 38, first liquid level switch 39, second liquid level switch 40, time relay 41. DETAILED DESCRIPTION

[0016] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0017] like Figure 1As shown, a separation and drainage device of a gas-liquid dual-cavity mixed transmission system includes a gas-liquid separator 1, a first circulation tank 2, a second circulation tank 3, and an interlocking mechanism. The gas-liquid separator 1 is provided with a first gas-liquid mixture input pipe 4, a second gas-liquid mixture input pipe 5, an exhaust pipe 6, and a drainage pipe 7. The first gas-liquid mixture input pipe 4 and the second gas-liquid mixture input pipe 5 are respectively located on the side walls of the gas-liquid separator 1, the exhaust pipe 6 is located at the top of the gas-liquid separator 1, and the drainage pipe 7 is located at the bottom of the gas-liquid separator 1; a first multi-purpose connecting pipe 8 is provided on the top of the first circulation tank 2, and the first multi-purpose connecting pipe 8 is connected to the first gas-liquid mixture input pipe through a first unidirectional gas-liquid mixture transmission pipeline. Specifically, a first stop valve 10 is installed on the first multi-purpose connecting pipe 8, and the end of the first stop valve 10 away from the first multi-purpose connecting pipe 8 is connected to the first three-way joint 12 through the first multi-purpose delivery pipe 11, and the No. 1 interface of the first three-way joint 12 is connected to the first multi-purpose delivery pipe 11; the first one-way gas-liquid mixture delivery pipeline includes a first pressure switch 17 installed on the first circulation tank 2 and a first mixture delivery pipe 13, a first pneumatic valve 14, a second mixture delivery pipe 15, and a first one-way valve 16 that are connected in sequence, the signal output end of the first pressure switch 17 is connected to the signal input end of the first pneumatic valve 14 through a cable, the end of the first mixture delivery pipe 13 away from the first pneumatic valve 14 is connected to the No. 2 interface of the first three-way joint 12, and the end of the first one-way valve 16 away from the second mixture delivery pipe 15 is connected to the first gas-liquid mixture 4 input pipe.

[0018] A second multi-purpose connecting pipe 9 is arranged on the top of the second circulation tank 3, and the second multi-purpose connecting pipe 9 is connected to the second gas-liquid mixture input pipe through a second one-way gas-liquid mixture delivery pipeline. Specifically, a second stop valve 18 is installed on the second multi-purpose connecting pipe 9, and the end of the second stop valve 18 away from the second multi-purpose connecting pipe 9 is connected to the second three-way joint 20 through the second multi-purpose delivery pipe 19, and the first interface of the second three-way joint 20 is connected to the second multi-purpose delivery pipe 19; the second one-way gas-liquid mixture delivery pipeline includes a second pressure switch 25 installed on the second circulation tank 3 and a third mixture delivery pipe 21, a second pneumatic valve 22, a fourth mixture delivery pipe 23, and a second one-way valve 24 connected in sequence, the signal output end of the second pressure switch 25 is connected to the signal input end of the second pneumatic valve 22 through a cable, the end of the third mixture delivery pipe 21 away from the second pneumatic valve 22 is connected to the second interface of the second three-way joint 20, and the end of the second one-way valve 22 away from the fourth mixture delivery pipe 23 is connected to the second gas-liquid mixture input pipe 5.

[0019] The third pneumatic valve 26 is installed on the discharge pipe 7. The third pneumatic valve 26 is connected to the first multi-purpose connecting pipe 8 through the first one-way liquid delivery pipeline, and the third pneumatic valve 26 is connected to the second multi-purpose connecting pipe 9 through the second one-way liquid delivery pipeline. Specifically, the end of the third pneumatic valve 26 away from the discharge pipe 7 is connected to a third three-way connector 28 through the first infusion pipe 27, and the first interface of the third three-way connector 28 is connected to the first infusion pipe 27; the first one-way liquid delivery pipeline includes a first infusion pipe 29, a third one-way valve 30, a second infusion pipe 31, a third stop valve 32, and a third infusion pipe 33 that are connected in sequence, the end of the first infusion pipe 29 away from the third one-way valve 30 is connected to the second interface of the third three-way connector 28, and the third One end of the infusion tube 33 away from the third stop valve 32 is connected to the No. 3 interface of the first three-way connector 12; the second one-way liquid delivery pipeline includes a fourth infusion tube 34, a fourth one-way valve 35, a fifth infusion tube 36, a fourth stop valve 37, and a sixth infusion tube 38 which are connected in sequence, and one end of the fourth infusion tube 34 away from the fourth one-way valve 35 is connected to the No. 3 interface of the third three-way connector 28, and one end of the sixth infusion tube 38 away from the fourth one-way valve 35 is connected to the No. 3 interface of the second three-way connector 28.

[0020] The interlocking mechanism is respectively connected to the first circulation tank 2, the second circulation tank 3, and the third pneumatic valve 26. Specifically, the interlocking mechanism includes a time relay 41, a first liquid level switch 39 installed on the first circulation tank 2, and a second liquid level switch 40 installed on the second circulation tank 3. The signal output end of the first liquid level switch 39 and the signal output end of the second liquid level switch 40 are respectively connected to the signal input end of the time relay 41 through a cable, and the signal output end of the time relay 41 is connected to the signal input end of the third pneumatic valve 26 through a cable.

[0021] The gas-liquid separator is one of a gravity settling type gas-liquid separator, a baffle type gas-liquid separator, a wire mesh type gas-liquid separator, and a packing type gas-liquid separator.

[0022] Working principle:

[0023] 1. The first stop valve, the second stop valve, the third stop valve and the fourth stop valve are in a normally open state, and the first pneumatic valve, the second pneumatic valve and the third pneumatic valve are in a normally closed state.

[0024] 2. When the first pressure switch detects that the air pressure in the first circulation tank reaches the preset pressure value, the first pressure switch closes to control the first pneumatic valve to open, and the gas-liquid mixture enters the gas-liquid separator through the first one-way gas-liquid mixture delivery pipeline for separation, and the separated natural gas is discharged from the exhaust pipe; when the first pressure switch detects that the air pressure in the first circulation tank is lower than the preset pressure value, the first pressure switch disconnects to control the first pneumatic valve to close. When the first liquid level switch detects that the liquid level in the first circulation tank reaches the preset liquid level, the first liquid level switch controls the time relay to start, and the time relay controls the third pneumatic valve to open. Due to the pressure difference between the gas-liquid separator and the second circulation tank, the liquid in the gas-liquid separator flows into the second circulation tank (the second circulation pipe is in the low-pressure stage at this time) through the third pneumatic valve and the second one-way delivery pipeline, completing the high-pressure gas separation and automatic closed liquid discharge work when the first circulation tank is used as a high-pressure tank.

[0025] 3. When the second pressure switch detects that the air pressure in the second circulation tank reaches the preset pressure value, the second pressure switch closes to control the second pneumatic valve to open, and the gas-liquid mixture enters the gas-liquid separator through the second one-way gas-liquid mixture delivery pipeline for separation, and the separated natural gas is discharged from the exhaust pipe; when the second pressure switch detects that the air pressure in the second circulation tank is lower than the preset pressure value, the second pressure switch disconnects to control the second pneumatic valve to close. When the second liquid level switch detects that the liquid level in the second circulation tank reaches the preset liquid level, the second liquid level switch controls the time relay to start, and the time relay controls the third pneumatic valve to open. Due to the pressure difference between the gas-liquid separator and the first circulation tank, the liquid in the gas-liquid separator flows into the first circulation tank (the first circulation pipe is in the low-pressure stage at this time) through the third pneumatic valve and the first one-way delivery pipeline, completing the high-pressure gas separation and automatic closed liquid discharge work when the second circulation tank is used as a high-pressure tank.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A separation and drainage device for a gas-liquid dual-chamber mixed transmission system, characterized in that: It includes a gas-liquid separator, a first circulation tank, a second circulation tank, and an interlocking mechanism. The gas-liquid separator is provided with a first gas-liquid mixture input pipe, a second gas-liquid mixture input pipe, an exhaust pipe, and a liquid discharge pipe. The top of the first circulation tank is provided with a first multi-purpose connecting pipe, and the first multi-purpose connecting pipe is connected to the first gas-liquid mixture input pipe through a first unidirectional gas-liquid mixture delivery pipeline. The top of the second circulation tank is provided with a second multi-purpose connecting pipe, and the second multi-purpose connecting pipe is connected to the second gas-liquid mixture input pipe through a second unidirectional gas-liquid mixture delivery pipeline. A third pneumatic valve is installed on the liquid discharge pipe, and the third pneumatic valve is connected to the first multi-purpose connecting pipe through a first unidirectional liquid delivery pipeline, and the third pneumatic valve is connected to the second multi-purpose connecting pipe through a second unidirectional liquid delivery pipeline. The interlocking mechanism is connected to the first circulation tank, the second circulation tank, and the third pneumatic valve, respectively.

2. The separation and drainage device according to claim 1, characterized in that: One end of the third pneumatic valve away from the discharge pipe is connected to a third three-way connector through the first infusion pipe, and the first interface of the third three-way connector is connected to the first infusion pipe.

3. The separation and drainage device according to claim 2, characterized in that: A first stop valve is installed on the first multi-purpose connecting pipe, and the end of the first stop valve away from the first multi-purpose connecting pipe is connected to the first three-way joint through the first multi-purpose delivery pipe, and the No. 1 interface of the first three-way joint is connected to the first multi-purpose delivery pipe; the first one-way gas-liquid mixture delivery pipeline includes a first pressure switch installed on the first circulation tank and a first mixture delivery pipe, a first pneumatic valve, a second mixture delivery pipe, and a first one-way valve connected in sequence, the signal output end of the first pressure switch is connected to the signal input end of the first pneumatic valve through a cable, the end of the first mixture delivery pipe away from the first pneumatic valve is connected to the No. 2 interface of the first three-way joint, and the end of the first one-way valve away from the second mixture delivery pipe is connected to the first gas-liquid mixture input pipe; the first one-way liquid delivery pipeline includes a first infusion pipe, a third one-way valve, a second infusion pipe, a third stop valve, and a third infusion pipe connected in sequence, the end of the first infusion pipe away from the third one-way valve is connected to the No. 2 interface of the third three-way joint, and the end of the third infusion pipe away from the third stop valve is connected to the No. 3 interface of the first three-way joint.

4. The separation and drainage device according to claim 2, characterized in that: A second stop valve is installed on the second multi-purpose connecting pipe, and the end of the second stop valve away from the second multi-purpose connecting pipe is connected to the second three-way joint through the second multi-purpose delivery pipe, and the No. 1 interface of the second three-way joint is connected to the second multi-purpose delivery pipe; the second one-way gas-liquid mixture delivery pipeline includes a second pressure switch installed on the second circulation tank and a third mixture delivery pipe, a second pneumatic valve, a fourth mixture delivery pipe, and a second one-way valve connected in sequence, the signal output end of the second pressure switch is connected to the signal input end of the second pneumatic valve through a cable, the end of the third mixture delivery pipe away from the second pneumatic valve is connected to the No. 2 interface of the second three-way joint, and the end of the second one-way valve away from the fourth mixture delivery pipe is connected to the second gas-liquid mixture input pipe; the second one-way liquid delivery pipeline includes a fourth infusion pipe, a fourth one-way valve, a fifth infusion pipe, a fourth stop valve, and a sixth infusion pipe connected in sequence, the end of the fourth infusion pipe away from the fourth one-way valve is connected to the No. 3 interface of the third three-way joint, and the end of the sixth infusion pipe away from the fourth one-way valve is connected to the No. 3 interface of the second three-way joint.

5. The separation and drainage device according to claim 1, characterized in that: The interlocking mechanism includes a time relay, a first liquid level switch installed on a first circulation tank, and a second liquid level switch installed on a second circulation tank. The signal output end of the first liquid level switch and the signal output end of the second liquid level switch are respectively connected to the signal input end of the time relay through cables, and the signal output end of the time relay is connected to the signal input end of the third pneumatic valve through a cable.

6. The separation and drainage device according to claim 1, characterized in that: The gas-liquid separator is one of a gravity sedimentation type gas-liquid separator, a baffle type gas-liquid separator, a wire mesh type gas-liquid separator, and a filler type gas-liquid separator.

7. The separation and drainage device according to claim 1, characterized in that: The first gas-liquid mixture input pipe and the second gas-liquid mixture input pipe are respectively located on the side walls of the gas-liquid separator, the exhaust pipe is located on the top of the gas-liquid separator, and the liquid discharge pipe is located at the bottom of the gas-liquid separator.

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