Totally-closed gas water seal tank device

Abstract

The utility model discloses a totally-enclosed gas water seal tank device, which comprises a totally-enclosed gas water seal tank device and a control system, the device comprises a water seal tank body, a plurality of controllable valve assemblies, a water supplementing assembly, a water draining assembly and a collecting assembly, the water seal tank body is placed on the ground, a water seal tank liquid level scale is arranged on the side edge of the water seal tank body, and the water seal tank liquid level scale is connected with the control system. And a control blow-down valve is arranged on the other side of the water seal tank body and is used for discharging internal condensed liquid and part of sediment water when the water seal tank body is overhauled. The gas water seal tank is provided with an automatic liquid level detection device, gas condensate is automatically collected and sent back to a production system, volatile substances are prevented from overflowing, environmental pollution is reduced, the labor intensity of workers is reduced, the device is in a totally-closed mode, and the potential safety hazard problem of gas leakage caused by leakage of the condensate is effectively avoided. The water seal tank body and various pipelines are made of stainless steel, so that the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical coking, in particular to a fully enclosed coal gas water seal tank device. Background Art

[0002] The gas water seal tank is mainly used to collect condensed liquid and some sediments in coke oven gas, blast furnace gas and converter gas to prevent the condensed liquid from gathering and filling the gas pipeline, blocking the normal transportation of gas and affecting users. The condensed liquid and some sediments collected by the traditional gas water seal tank are generally discharged directly into the condensed liquid collection pool, and the condensed liquid is sucked away by the suction truck and sent to the designated location for treatment. This method can only be applied to open outdoor venues, where it is convenient for the suction truck to drive directly in. If the gas water seal tank is installed in the coke oven basement, the suction truck cannot directly enter the basement, and the condensed liquid in the condensed liquid collection pool can only be treated manually, resulting in low work efficiency, which is far from the current requirements of intelligent and automated development of enterprises. At the same time, since the condensed liquid and some sediments are directly in the collection pool, there is a situation of volatile substances overflowing, which is easy to cause pollution. In addition, when the condensed liquid leaks in the gas water seal tank, if it is not discovered in time, it will cause gas leakage, and there are certain safety hazards. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the shortcomings of the prior art, the utility model provides a fully enclosed gas water seal tank device, which realizes the automatic collection and delivery function of gas condensate, can solve the problem of direct discharge of gas condensate, and can effectively avoid the safety hazard of gas leakage caused by leakage of condensate.

[0005] (II) Technical solution

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a fully enclosed gas water seal tank device, including a water seal tank body, a plurality of controllable valve components, a water replenishment component, a drainage component and a collection component. The water seal tank body is placed on the ground, and a water seal tank liquid level scale is arranged on its side.

[0007] A control drain valve is provided on the other side of the water seal tank body, which is used to drain the internal condensed liquid and part of the sediment water when the water seal tank body is inspected and repaired;

[0008] A gas condensate pipeline is arranged on the upper part of the water seal tank body, and a condensate control valve is arranged on the pipeline, which is normally in an open state;

[0009] The upper part of the water seal tank body is provided with a steam pipe, on which a valve for controlling steam is provided, which is normally in a normally closed state. Opening the valve for controlling steam can keep the water seal tank body warm.

[0010] The water seal tank body is provided with a supplementary water pipeline, on which a valve for controlling supplementary water is provided, and the valve for controlling supplementary water is connected to a supplementary water level gauge, and the supplementary water level gauge is used to control the switch of the supplementary water valve, replenish liquid into the water seal tank body in time, and control the liquid level in the water seal tank body;

[0011] The water seal tank body is provided with a drainage pipe, on which a valve for controlling drainage is provided, and the valve for controlling drainage is connected to a drainage level gauge, and the drainage level gauge is used to control the switch of the drainage valve; a sewage pump is connected to the bottom of the drainage pipe,

[0012] The signal is transmitted between the drainage liquid level meter and the sewage pump via the sewage pump controller.

[0013] Preferably, the plurality of controllable valve components include a gas condensate valve, a water supplementary electromagnetic valve, a steam valve, a drainage electromagnetic valve and a water seal tank drain valve;

[0014] The control drain valve is a water seal tank drain valve;

[0015] The control condensate valve is a gas condensate valve, and the bottom of the gas condensate pipeline is 10 to 20 cm away from the bottom of the water seal tank body;

[0016] The valve for controlling steam is a steam valve, and the bottom of the steam pipe is 10 to 20 cm away from the bottom of the water seal tank body;

[0017] The valve controlling the replenishing water is a replenishing water electromagnetic valve, and the replenishing water electromagnetic valve is electrically connected to the replenishing water level gauge; due to the fluctuation of the water content of the coal gas, the amount of coal gas condensate decreases. When the liquid level detected by the replenishing water level gauge is lower than the set value L1, the replenishing water electromagnetic valve opens to replenish liquid into the water seal tank body; when the liquid level detected by the replenishing water level gauge is higher than the set value L2, the replenishing water electromagnetic valve closes;

[0018] The valve for controlling drainage is a drainage electromagnetic valve, the bottom of the drainage pipe is 10 to 20 cm away from the bottom of the water seal tank body, and the drainage electromagnetic valve is electrically connected to the drainage liquid level meter;

[0019] The drainage liquid level meter uploads the signal to the host computer through the controller, which is convenient for the central control operation room to monitor the liquid level. When the drainage liquid level meter detects that the liquid level is higher than the set value L3, the drainage solenoid valve opens and the sewage pump starts to transport the condensed liquid in the water seal tank body to the designated drainage collection device; when the drainage liquid level meter detects that the liquid level is lower than the set value L4, the sewage pump is closed first and then the drainage solenoid valve is closed.

[0020] Preferably, the water seal tank liquid level scale is marked with scale lines to indicate the liquid level in the water seal tank body, and is made of transparent corrosion-resistant material.

[0021] Preferably, the water seal tank body and various pipelines are made of stainless steel.

[0022] Preferably, the water seal tank body and various pipelines are connected by welding, and the water seal tank body and the water seal tank level gauge, the replenishing water level gauge, and the drainage level gauge are flange-connected to realize a detachable level gauge.

[0023] Preferably, the gas water seal tank device is fully enclosed to prevent gas leakage.

[0024] Preferably, the height of liquid level L2 is lower than that of liquid level L4, the height of liquid level L1 is set according to the gas pressure, and the height of liquid level L3 is set according to the height of the water seal tank body.

[0025] An automatic control system for a fully enclosed gas water seal tank device comprises the following steps:

[0026] S1: Set the liquid level heights of L1, L2, L3, and L4. Specifically, the liquid level L2 is lower than the liquid level L4. The liquid level L1 is set according to the gas pressure, and the liquid level L3 is set according to the height of the water seal tank body.

[0027] S2: first inject water into the water seal tank body so that the liquid level of the water seal tank body is between L2 and L4;

[0028] S3: Open the gas condensate valve, and the gas condensate enters the water seal tank body through the gas condensate pipe. As the amount of gas condensate increases, the liquid level in the water seal tank body gradually rises;

[0029] S4: When the liquid level detected by the drainage level gauge is higher than the set value L3, the drainage solenoid valve opens, the sewage pump starts, and the condensed liquid in the water seal tank body is transported to the designated location and the drainage collection device; when the liquid level detected by the drainage level gauge is lower than the set value L4, the sewage pump is closed first, and the drainage solenoid valve is closed;

[0030] S5: Due to the fluctuation of the water content of the coal gas, the amount of coal gas condensate decreases, and the liquid level in the water seal tank body will continue to decrease. When the liquid level detected by the make-up water level gauge is lower than the set value L1, the make-up water electromagnetic valve opens to add liquid to the water seal tank body; when the liquid level detected by the make-up water level gauge is higher than the set value L2, the make-up water electromagnetic valve closes.

[0031] (III) Beneficial effects

[0032] The utility model provides a fully enclosed gas water seal tank device. It has the following beneficial effects:

[0033] The gas water seal tank is equipped with an automatic liquid level detection device to automatically collect and send the gas condensate back to the production system, avoiding the overflow of volatile substances, reducing environmental pollution and lowering the labor intensity of employees.

[0034] The device adopts a fully enclosed form, effectively avoiding the potential safety hazard of gas leakage caused by leakage of condensed liquid. The water seal tank body and various pipes are made of stainless steel to increase the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a connection diagram of a fully enclosed gas water seal tank device;

[0036] Figure 2 is the system block diagram;

[0037] In the figure: 1. water seal tank body, 2. water seal tank liquid level scale, 3. gas condensate valve, 4. make-up water electromagnetic valve, 5. make-up water liquid level gauge, 6. steam valve, 7. drain electromagnetic valve, 8. drain liquid level gauge, 9. sewage pump controller, 10. sewage pump, 11. water seal tank sewage valve, 12. drainage collection equipment. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] See also Figure 1 The utility model provides a technical solution: a fully enclosed gas water seal tank device, including a water seal tank body 1, a plurality of controllable valve components, a water replenishment component, a drainage component and a collection component. The water seal tank body 1 is placed on the ground, and a water seal tank liquid level scale 2 is arranged on its side.

[0040] A control drain valve is provided on the other side of the water seal tank body 1, which is used to drain the internal condensed liquid and part of the sediment water when the water seal tank body 1 is inspected and repaired;

[0041] A gas condensate pipeline is arranged on the upper part of the water seal tank body 1, and a condensate control valve is arranged on the pipeline, which is normally in an open state;

[0042] A steam pipe is provided on the upper part of the water seal tank body 1, and a valve for controlling steam is provided on the pipe, which is normally in a normally closed state. Opening the valve for controlling steam can keep the water seal tank body 1 warm.

[0043] The water seal tank body 1 is provided with a supplementary water pipeline, on which a valve for controlling the supplementary water is provided, and the valve for controlling the supplementary water is connected to a supplementary water level gauge 5, and the supplementary water level gauge 5 is used to control the switch of the supplementary water valve, replenish liquid into the water seal tank body 1 in time, and control the liquid level in the water seal tank body 1;

[0044] The water seal tank body 1 is provided with a drainage pipe, on which a valve for controlling drainage is provided, and the valve for controlling drainage is connected to a drainage level gauge 8, and the drainage level gauge 8 is used to control the switch of the drainage valve; a sewage pump 10 is connected to the bottom of the drainage pipe,

[0045] Signals are transmitted between the drainage level meter 8 and the sewage pump 10 via the sewage pump controller 9 .

[0046] The plurality of controllable valve components include a gas condensate valve 3, a water supplement electromagnetic valve 4, a steam valve 6, a drainage electromagnetic valve 7 and a water seal tank drain valve 11;

[0047] The control drain valve is the water seal tank drain valve 11;

[0048] The condensate control valve is a gas condensate valve 3, and the bottom of the gas condensate pipeline is 10 to 20 cm away from the bottom of the water seal tank body 1;

[0049] The valve for controlling steam is the steam valve 6, and the bottom of the steam pipe is 10 to 20 cm away from the bottom of the water seal tank body 1;

[0050] The valve for controlling the replenishing water is the replenishing water electromagnetic valve 4, which is electrically connected to the replenishing water level meter 5. Due to the fluctuation of the water content of the coal gas, the amount of coal gas condensate decreases. When the liquid level detected by the replenishing water level meter 5 is lower than the set value L1, the replenishing water electromagnetic valve 4 opens to replenish liquid into the water seal tank body 1. When the liquid level detected by the replenishing water level meter 5 is higher than the set value L2, the replenishing water electromagnetic valve 4 closes.

[0051] The valve for controlling drainage is a drainage electromagnetic valve 7. The bottom of the drainage pipe is 10 to 20 cm away from the bottom of the water seal tank body 1. The drainage electromagnetic valve 7 is electrically connected to the drainage liquid level meter 8.

[0052] The drainage liquid level meter 8 uploads the signal to the host computer through the controller 9, which is convenient for the central control operation room to monitor the liquid level. When the drainage liquid level meter 8 detects that the liquid level is higher than the set value L3, the drainage electromagnetic valve 7 opens and the sewage pump 10 starts to transport the condensed liquid in the water seal tank body 1 to the designated location drainage collection device 12; when the drainage liquid level meter 8 detects that the liquid level is lower than the set value L4, the sewage pump 10 is closed first, and the drainage electromagnetic valve 7 is closed.

[0053] The water seal tank level gauge 2 is marked with scale lines to indicate the liquid level in the water seal tank body 1. It is made of transparent corrosion-resistant material. The water seal tank body 1 and various pipes are made of stainless steel. The water seal tank body 1 and various pipes are connected by welding. The water seal tank body 1 and the water seal tank level gauge 2, the replenishing water level gauge 5, and the drainage level gauge 8 are flange-connected to realize a detachable level gauge. The gas water seal tank device is fully enclosed to prevent gas leakage.

[0054] The height of liquid level L2 is lower than that of liquid level L4 . The height of liquid level L1 is set according to the gas pressure, and the height of liquid level L3 is set according to the height of the water seal tank body 1 .

[0055] An automatic control system for a fully enclosed gas water seal tank device comprises the following steps:

[0056] S1: Set the liquid level heights of L1, L2, L3, and L4. Specifically, the liquid level L2 is lower than the liquid level L4. The liquid level L1 is set according to the gas pressure, and the liquid level L3 is set according to the height of the water seal tank body 1.

[0057] S2: first inject water into the water seal tank body 1 so that the liquid level of the water seal tank body 1 is between L2 and L4;

[0058] S3: Open the gas condensate valve 3, and the gas condensate enters the water seal tank body 1 through the gas condensate pipe. As the amount of gas condensate increases, the liquid level in the water seal tank body 1 gradually rises;

[0059] S4: When the liquid level detected by the drainage level meter 8 is higher than the set value L3, the drainage electromagnetic valve 7 is opened, and the sewage pump 10 is started to transport the condensed liquid in the water seal tank body 1 to the designated location, the drainage collection device 12; when the liquid level detected by the drainage level meter 8 is lower than the set value L4, the sewage pump 10 is first closed, and the drainage electromagnetic valve 7 is closed;

[0060] S5: Due to the fluctuation of the water content of the coal gas, the amount of coal gas condensate decreases, and the liquid level in the water seal tank body 1 will continue to decrease. When the liquid level detected by the make-up water level gauge 5 is lower than the set value L1, the make-up water electromagnetic valve 4 opens to add liquid to the water seal tank body 1; when the liquid level detected by the make-up water level gauge 5 is higher than the set value L2, the make-up water electromagnetic valve 4 is closed.

[0061] In the first embodiment, the water seal tank body 1 and various pipelines are made of stainless steel to increase the service life; the water seal tank body 1 and various pipelines are connected by welding. The water seal tank body 1 and the water seal tank level gauge 2, the replenishing water level gauge 5, and the drainage level gauge 8 are flange-connected to facilitate the replacement of the level gauge. At the same time, the device is fully enclosed to effectively prevent gas leakage. The water seal tank level gauge 2 is made of transparent corrosion-resistant material to facilitate observation of the liquid level.

[0062] The height of liquid level L2 is lower than that of liquid level L4 . The height of liquid level L1 is set according to the gas pressure, and the height of liquid level L3 is set according to the height of the water seal tank body 1 .

[0063] Before the device is put into use, water is first injected into the water seal tank body 1 so that the liquid level of the water seal tank body 1 is between L2 and L4. The gas condensate valve 3 is opened, and the gas condensate enters the water seal tank body 1 through the gas condensate pipe. As the amount of gas condensate increases, the liquid level in the water seal tank body 1 slowly rises. When the drainage level meter 8 detects that the liquid level is higher than the set value L3, the drainage electromagnetic valve 7 is opened, and the sewage pump 10 is started to transport the condensed liquid in the water seal tank body 1 to the specified location, such as the coke oven gas collecting pipe 12. When the drainage level meter 8 detects that the liquid level is lower than the set value L4, the sewage pump 10 is closed first, and the drainage electromagnetic valve 7 is closed.

[0064] Due to the fluctuation of the water content of the coal gas, the amount of coal gas condensate decreases, and the liquid level in the water seal tank body 1 will continue to decrease. When the liquid level detected by the make-up water level gauge 5 is lower than the set value L1, the make-up water electromagnetic valve 4 opens to add liquid to the water seal tank body 1; when the liquid level detected by the make-up water level gauge 5 is higher than the set value L2, the make-up water electromagnetic valve 4 is closed.

[0065] To sum up, the gas water seal tank is equipped with an automatic liquid level detection device to automatically collect and send the gas condensate back to the production system, avoiding the overflow of volatile substances, reducing environmental pollution, and reducing the labor intensity of employees.

[0066] The device adopts a fully enclosed form, effectively avoiding the potential safety hazard of gas leakage caused by leakage of condensed liquid. The water seal tank body and various pipes are made of stainless steel to increase the service life.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully enclosed gas water seal tank device, comprising a water seal tank body (1), a plurality of controllable valve components, a water replenishment component, a drainage component and a collection component, characterized in that: The water seal tank body (1) is placed on the ground, and a water seal tank liquid level gauge (2) is arranged on its side. A control drain valve is provided on the other side of the water seal tank body (1) for draining the internal condensed liquid and part of the sediment water when the water seal tank body (1) is inspected and repaired; A gas condensate pipeline is arranged on the upper part of the water seal tank body (1), and a condensate control valve is arranged on the pipeline, which is normally in an open state; A steam pipe is arranged on the upper part of the water seal tank body (1), and a valve for controlling steam is arranged on the pipe. The valve is normally closed. Opening the valve for controlling steam can keep the water seal tank body (1) warm. The water seal tank body (1) is provided with a supplementary water pipeline, on which a valve for controlling the supplementary water is provided, and the valve for controlling the supplementary water is connected to a supplementary water level gauge (5), and the supplementary water level gauge (5) is used to control the switch of the supplementary water valve, replenish liquid into the water seal tank body (1) in time, and control the liquid level in the water seal tank body (1); The water seal tank body (1) is provided with a drainage pipeline, on which a valve for controlling drainage is provided, the valve for controlling drainage is connected to a drainage level meter (8), and the drainage level meter (8) is used to control the opening and closing of the drainage valve; a sewage pump (10) is connected to the bottom of the drainage pipeline. Signals are transmitted between the drainage liquid level meter (8) and the sewage pump (10) via the sewage pump controller (9).

2. A fully enclosed gas water seal tank device according to claim 1, characterized in that: The plurality of controllable valve components include a gas condensate valve (3), a water supply electromagnetic valve (4), a steam valve (6), a drainage electromagnetic valve (7) and a water seal tank sewage valve (11); The control drain valve is a water seal tank drain valve (11); The control condensate valve is a gas condensate valve (3), and the bottom of the gas condensate pipeline is 10 to 20 cm away from the bottom of the water seal tank body (1); The valve for controlling steam is a steam valve (6), and the bottom of the steam pipe is 10 to 20 cm away from the bottom of the water seal tank body (1); The valve for controlling the replenishing water is a replenishing water electromagnetic valve (4), and the replenishing water electromagnetic valve (4) is electrically connected to the replenishing water level meter (5); due to the fluctuation of the water content of the coal gas, the amount of coal gas condensate decreases. When the liquid level detected by the replenishing water level meter (5) is lower than the set value L1, the replenishing water electromagnetic valve (4) opens to replenish liquid into the water seal tank body (1); when the liquid level detected by the replenishing water level meter (5) is higher than the set value L2, the replenishing water electromagnetic valve (4) closes; The valve for controlling drainage is a drainage electromagnetic valve (7), the bottom of the drainage pipe is 10 to 20 cm away from the bottom of the water seal tank body (1), and the drainage electromagnetic valve (7) is electrically connected to the drainage liquid level meter (8); The drainage liquid level meter (8) uploads a signal to a host computer via a controller (9), so that the central control room can monitor the liquid level. When the drainage liquid level meter (8) detects a liquid level higher than a set value L3, the drainage electromagnetic valve (7) is opened, and the sewage pump (10) is started to transport the condensed liquid in the water seal tank body (1) to a drainage collection device (12) at a designated location. When the drainage liquid level meter (8) detects a liquid level lower than a set value L4, the sewage pump (10) is first closed, and the drainage electromagnetic valve (7) is closed.

3. A fully enclosed gas water seal tank device according to claim 1, characterized in that: The water seal tank liquid level scale (2) is marked with scale lines to indicate the liquid level in the water seal tank body (1), and is made of transparent corrosion-resistant material.

4. A fully enclosed gas water seal tank device according to any one of claims 1 to 3, characterized in that: The water seal tank body (1) and various pipelines are made of stainless steel.

5. A fully enclosed gas water seal tank device according to any one of claims 1 to 3, characterized in that: The water seal tank body (1) and various pipelines are connected by welding, and the water seal tank body (1) and the water seal tank level gauge (2), the replenishing water level gauge (5), and the drainage level gauge (8) are flange-connected to realize a detachable level gauge.

6. A fully enclosed gas water seal tank device according to any one of claims 1 to 3, characterized in that: The gas water seal tank device is fully sealed to prevent gas leakage.

7. A fully enclosed gas water seal tank device according to claim 2, characterized in that: The height of the liquid level L2 is lower than the height of the liquid level L4. The height of the liquid level L1 is set according to the gas pressure, and the height of the liquid level L3 is set according to the height of the water seal tank body (1).

Images