Automatic liquid sealing device

Abstract

The utility model relates to an automatic liquid sealing device which comprises an outer barrel, an inner barrel, a leading-in pipe and an automatic liquid supplementing mechanism, the inner barrel is arranged in the outer barrel, the lower portion of the leading-in pipe is arranged in the inner barrel, and the automatic liquid supplementing mechanism is connected with the outer barrel. In the actual use process, when production equipment with low pressure needs to be subjected to liquid sealing, a pressure pipeline of the production equipment can be connected with the guide-in pipe, the guide-in pipe is subjected to liquid sealing through sealing liquid, when the pressure in the guide-in pipe is increased, the liquid level of the sealing liquid in the guide-in pipe is lowered, and the pressure in the guide-in pipe is lowered. Meanwhile, the liquid level of the sealing liquid in the outer barrel and the inner barrel is driven to rise through the flowing gap and the liquid discharging opening, pressure gas is discharged through the upper portion of the inner barrel, pressure discharging and sealing breaking are completed, after liquid sealing is reduced, the liquid level sensing assembly receives a signal and controls the liquid inlet pump to operate, and new sealing liquid flows into the outer barrel through the liquid supplementing pipe; therefore, the liquid seal device after the liquid seal is broken through can be automatically supplemented with liquid, so that the whole device is more convenient to use, and the dependence on manpower is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid sealing, in particular to an automatic liquid sealing device. Background Art

[0002] In the field of petrochemical production, in order to ensure the safety of equipment or devices in the production process, the most widely used and common measure is to install a safety valve. Once the emergency response is not timely, when the device pressure reaches the trip pressure set by the safety valve, the safety valve will automatically trip the pressure relief protection device. For some production devices with lower pressure, the protection measures taken are more to use liquid seal devices instead of safety valves.

[0003] However, a disadvantage of traditional liquid sealing devices is that once the liquid seal is broken, it cannot be restored automatically and needs to be replenished manually. As a result, traditional liquid sealing devices are not convenient to use and are highly dependent on manual labor. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In order to solve the above problems in the prior art, the utility model provides an automatic liquid sealing device, which can automatically replenish liquid to the liquid sealing device after the liquid seal is broken, so that the overall device is more convenient to use and reduces dependence on manual labor.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0008] An automatic liquid sealing device comprises an outer barrel, an inner barrel, an introduction tube and an automatic liquid replenishing mechanism, wherein the inner barrel is arranged inside the outer barrel, the lower part of the introduction tube is arranged inside the inner barrel, and the automatic liquid replenishing mechanism is connected to the outer barrel;

[0009] A liquid discharge port is provided at the lower part of the inner cylinder, and the inner cylinder is connected to the outer barrel through the liquid discharge port;

[0010] A flow gap is provided between the introduction tube and the bottom of the inner tube, and the flow gap is used for the liquid in the introduction tube to flow into the inner tube;

[0011] The automatic liquid replenishing mechanism includes a liquid replenishing tube, a liquid inlet pump and a liquid level sensing component. A liquid replenishing port is provided on the upper part of the outer barrel, the liquid replenishing tube is connected to the liquid replenishing port, the liquid inlet pump is provided inside the liquid replenishing tube, the liquid level sensing component is vertically installed on the inner surface of the outer barrel, and the liquid level sensing component is electrically connected to the liquid inlet pump.

[0012] Furthermore, it also includes a retaining frame, which is arranged on the top of the inner tube, the outer side of the retaining frame is fixedly connected to the inner surface of the top of the inner tube, and the inner side of the retaining frame is fixedly connected to the outer surface of the introduction tube.

[0013] Furthermore, the retaining frame is provided with an exhaust port.

[0014] Furthermore, the liquid level sensing assembly includes a slide rail and a float liquid level sensor, the slide rail is detachably connected to the inner surface of the outer barrel, the float liquid level sensor is slidably connected to the slide rail, and the float liquid level sensor is electrically connected to the liquid inlet pump.

[0015] Furthermore, the bottom of the inner barrel is fixedly connected to the bottom of the outer barrel.

[0016] Furthermore, a sealing liquid is arranged inside the outer barrel.

[0017] (III) Beneficial effects

[0018] The beneficial effect of the utility model is that when it is necessary to perform liquid sealing on production equipment with lower pressure during actual use, the pressure pipeline of the production equipment can be connected to the introduction pipe, and the introduction pipe can be liquid sealed by the sealing liquid. When the pressure in the introduction pipe increases, the liquid level of the sealing liquid in the introduction pipe drops, and at the same time, the liquid levels of the sealing liquid in the outer barrel and the inner cylinder are driven to rise through the flow gap and the discharge port, and the pressurized gas is discharged through the upper part of the inner cylinder to complete the pressure relief and seal breaking. When the liquid seal is reduced, the liquid level sensing component receives a signal and controls the operation of the liquid inlet pump, so that new sealing liquid flows into the outer barrel through the liquid replenishing pipe, thereby automatically replenishing the liquid sealing device after the liquid seal is broken, making the overall device more convenient to use and reducing dependence on manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the automatic liquid sealing device of an embodiment of the utility model;

[0020] Figure 2 It is a front view of the overall structure of the automatic liquid sealing device of an embodiment of the utility model;

[0021] Figure 3 This is a cross-sectional view of the overall structure of the automatic liquid sealing device of an embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the pressure trend of the automatic liquid sealing device of an embodiment of the utility model;

[0023] [Description of Reference Numerals]

[0024] Outer barrel 1, liquid replenishing tube 2, retaining frame 3, inner barrel 4, introduction tube 5, liquid inlet pump 6, slide rail 7, float liquid level sensor 8, and liquid discharge port 9. DETAILED DESCRIPTION

[0025] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0026] Please refer to Figures 1 to 4 As shown, an automatic liquid sealing device of the utility model comprises an outer barrel 1, an inner barrel 4, an introduction tube 5 and an automatic liquid replenishing mechanism, wherein the inner barrel 4 is arranged inside the outer barrel 1, the lower part of the introduction tube 5 is arranged inside the inner barrel 4, and the automatic liquid replenishing mechanism is connected to the outer barrel 1;

[0027] A drain port 9 is provided at the lower portion of the inner cylinder 4, and the inner cylinder 4 is connected to the outer barrel 1 through the drain port 9;

[0028] A flow gap is provided between the introduction tube 5 and the bottom of the inner tube 4, and the flow gap is used for the liquid in the introduction tube 5 to flow into the inner tube 4;

[0029] The automatic liquid replenishing mechanism includes a liquid replenishing tube 2, a liquid inlet pump 6 and a liquid level sensing component. A liquid replenishing port is provided at the upper part of the outer barrel 1. The liquid replenishing tube 2 is connected to the liquid replenishing port. The liquid inlet pump 6 is provided inside the liquid replenishing tube 2. The liquid level sensing component is vertically installed on the inner surface of the outer barrel 1, and the liquid level sensing component is electrically connected to the liquid inlet pump 6.

[0030] The working principle of the utility model is as follows: in actual use, when it is necessary to liquid-seal the production equipment with lower pressure, the pressure pipeline of the production equipment can be connected to the introduction pipe 5, and the introduction pipe 5 can be liquid-sealed by sealing liquid. When the pressure in the introduction pipe 5 increases, the liquid level of the sealing liquid in the introduction pipe 5 drops, and at the same time, the liquid level of the sealing liquid in the outer barrel 1 and the inner tube 4 is driven to rise through the flow gap and the discharge port 9, and the pressurized gas is discharged through the upper part of the inner tube 4 to complete the pressure relief and seal breaking. When the liquid seal is reduced, the liquid level sensing component receives a signal and controls the operation of the liquid inlet pump 6, so that the new sealing liquid flows into the outer barrel 1 through the liquid replenishing tube 2.

[0031] Furthermore, it also includes a retaining frame 3, which is arranged on the top of the inner tube 4, the outer side of the retaining frame 3 is fixedly connected to the inner surface of the top of the inner tube 4, and the inner side of the retaining frame 3 is fixedly connected to the outer surface of the introduction tube 5.

[0032] It can be seen from the above description that it is beneficial for the introduction tube 5 to be installed inside the inner tube 4 through the retaining frame 3 .

[0033] Furthermore, the retaining frame 3 is provided with an exhaust port.

[0034] From the above description, it can be seen that it is beneficial for part of the pressurized air to be discharged through the exhaust port.

[0035] Furthermore, the liquid level sensing assembly includes a slide rail 7 and a float liquid level sensor 8, the slide rail 7 is detachably connected to the inner surface of the outer barrel 1, the float liquid level sensor 8 is slidably connected to the slide rail 7, and the float liquid level sensor 8 is electrically connected to the liquid inlet pump 6.

[0036] As can be seen from the above description, the float liquid level sensor 8 can be slidably installed on the inner surface of the outer barrel 1 through the slide rail 7, and the float liquid level sensor 8 can be driven to float or sink by the buoyancy of the sealing liquid.

[0037] Furthermore, the bottom of the inner barrel 4 is fixedly connected to the bottom of the outer barrel 1 .

[0038] From the above description, it can be seen that it is beneficial for the inner barrel 4 to be fixedly installed inside the outer barrel 1.

[0039] Furthermore, a sealing liquid is arranged inside the outer barrel 1 .

[0040] It can be seen from the above description that it is beneficial to seal the introduction tube 5 by sealing liquid.

[0041] Embodiment 1

[0042] Please refer to Figures 1 to 4 An automatic liquid sealing device comprises an outer barrel 1, an inner barrel 4, an introduction tube 5 and an automatic liquid replenishing mechanism, wherein the inner barrel 4 is arranged inside the outer barrel 1, the lower part of the introduction tube 5 is arranged inside the inner barrel 4, and the automatic liquid replenishing mechanism is connected to the outer barrel 1;

[0043] A drain port 9 is provided at the lower portion of the inner cylinder 4, and the inner cylinder 4 is connected to the outer barrel 1 through the drain port 9;

[0044] The drainage ports 9 are provided on both sides of the lower part of the inner cylinder 4;

[0045] A flow gap is provided between the introduction tube 5 and the bottom of the inner tube 4, and the flow gap is used for the liquid in the introduction tube 5 to flow into the inner tube 4;

[0046] The automatic liquid replenishing mechanism includes a liquid replenishing tube 2, a liquid inlet pump 6 and a liquid level sensing component. A liquid replenishing port is provided at the upper portion of the outer barrel 1. The liquid replenishing tube 2 is connected to the liquid replenishing port by welding. The liquid inlet pump 6 is provided inside the liquid replenishing tube 2. The liquid level sensing component is vertically installed on the inner surface of the outer barrel 1. The liquid level sensing component is electrically connected to the liquid inlet pump 6.

[0047] The liquid inlet pump 6 adopts a mobile pump;

[0048] It also includes a retainer 3, the top of the inner tube 4 is provided with the retainer 3, the outer side of the retainer 3 is fixedly connected to the inner surface of the top of the inner tube 4 by welding, and the inner side of the retainer 3 is fixedly connected to the outer surface of the introduction tube 5 by welding;

[0049] The retaining frame 3 is provided with an exhaust port;

[0050] The liquid level sensing assembly includes a slide rail 7 and a float liquid level sensor 8, the slide rail 7 is detachably connected to the inner surface of the outer barrel 1 by bolts, the float liquid level sensor 8 is slidably connected to the slide rail 7, and the float liquid level sensor 8 is electrically connected to the liquid inlet pump 6;

[0051] The bottom of the inner barrel 4 is fixedly connected to the bottom of the outer barrel 1 by welding;

[0052] The outer barrel 1 is provided with sealing liquid inside, and the sealing liquid is tap water, which is low in cost and easy to collect.

[0053] The above shows and describes the basic principle, main features and advantages of the utility model, and the standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description and the drawings, and the specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0054] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. An automatic liquid sealing device, characterized in that: It comprises an outer barrel, an inner barrel, an introduction tube and an automatic liquid replenishing mechanism, wherein the inner barrel is arranged inside the outer barrel, the lower part of the introduction tube is arranged inside the inner barrel, and the automatic liquid replenishing mechanism is connected to the outer barrel; A liquid discharge port is provided at the lower part of the inner cylinder, and the inner cylinder is connected to the outer barrel through the liquid discharge port; A flow gap is provided between the introduction tube and the bottom of the inner tube, and the flow gap is used for the liquid in the introduction tube to flow into the inner tube; The automatic liquid replenishing mechanism includes a liquid replenishing tube, a liquid inlet pump and a liquid level sensing component. A liquid replenishing port is provided on the upper part of the outer barrel, the liquid replenishing tube is connected to the liquid replenishing port, the liquid inlet pump is provided inside the liquid replenishing tube, the liquid level sensing component is vertically installed on the inner surface of the outer barrel, and the liquid level sensing component is electrically connected to the liquid inlet pump.

2. The automatic liquid sealing device according to claim 1, characterized in that: It also includes a retaining frame, which is arranged on the top of the inner tube, the outer side of the retaining frame is fixedly connected to the inner surface of the top of the inner tube, and the inner side of the retaining frame is fixedly connected to the outer surface of the introduction tube.

3. The automatic liquid sealing device according to claim 2, characterized in that: The retaining frame is provided with an exhaust port.

4. The automatic liquid sealing device according to claim 1, characterized in that: The liquid level sensing assembly comprises a slide rail and a float liquid level sensor, the slide rail is detachably connected to the inner surface of the outer barrel, the float liquid level sensor is slidably connected to the slide rail, and the float liquid level sensor is electrically connected to the liquid inlet pump.

5. The automatic liquid sealing device according to claim 1, characterized in that: The bottom of the inner cylinder is fixedly connected to the bottom of the outer barrel.

6. The automatic liquid sealing device according to claim 1, characterized in that: The outer barrel is provided with sealing liquid.

Images