Automatic gas cut-off device for gas water seal

Abstract

The utility model provides an automatic gas cut-off device for a gas water seal. The automatic gas cut-off device comprises a gas water seal device body, the water level floating ball is arranged at the top of a water seal overflow pipe of the gas water seal device body, and the water level floating ball can detect the water level in the water seal overflow pipe; the gas inlet mechanism is communicated with the gas inlet of the coal gas water seal device body, and the gas inlet mechanism can add coal gas into the coal gas water seal device body; the control mechanism can obtain the position of the water level floating ball and control the working state of the air inlet mechanism according to the position of the water level floating ball, an operator can complete various operations in a safe and reliable environment, intrinsic safety of the operation environment is achieved, and the safety of the operator is improved. Meanwhile, energy waste caused by continuous long-time leakage of coal gas is avoided, economic benefits are achieved, environment pollution caused by the coal gas is reduced, and good environmental protection benefits are achieved.

Description

Technical Field

[0001] The utility model relates to the field of gas use equipment, in particular to a gas water seal automatic gas shut-off device. Background Art

[0002] In the gas-related industry, vertical gas water seals are used in many scenarios. The current vertical gas water seals are all equipped with anti-leakage devices, and the position of the float on the device is used to determine whether the water seal is short of water. Although the anti-leakage device has been designed, the water seal is malignantly punctured due to a very high peak pressure. Or although the breakdown pressure is not high, the speed is too fast, and the water seal is seriously short of water due to the inertia of the overflow flow rate. There will still be a large amount of gas leakage, and the operator needs to manually close the air inlet valve of the water seal in a high-concentration gas environment, and then complete the water replenishment operation according to the regulations, and finally resume the water seal operation. Since the entire operation process is completed in a high-concentration gas environment, it poses a safety hazard, and there are also problems of gas waste and environmental pollution.

[0003] The currently commonly used vertical gas water seal replenishment operation method has the following main disadvantages: 1. The inspector must first discover the abnormal position of the water seal float before taking action; the operator needs to operate in a high-concentration gas environment during the treatment process, and strict gas protection measures are required; it causes great pollution to the surrounding environment and even has the risk of space explosion, while wasting gas resources. Utility Model Content

[0004] The utility model aims to provide a gas water seal automatic gas cut-off device, which improves the operating safety of the operator.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas water seal automatic gas shut-off device, comprising: a gas water seal device body; a water level float, the water level float is arranged at the top of the water seal overflow pipe of the gas water seal device body, and the water level float can detect the water level in the water seal overflow pipe; an air intake mechanism, the air intake mechanism is connected to the air inlet of the gas water seal device body, and the air intake mechanism can add gas into the gas water seal device body; a control mechanism, the control mechanism can obtain the position of the water level float, and control the working state of the air intake mechanism according to the position of the water level float.

[0006] Furthermore, the intake mechanism includes a first intake valve and an intake valve controller, the first intake valve is connected to the intake port, and the control mechanism can control the working state of the first intake valve through the intake valve controller.

[0007] Furthermore, the control mechanism includes a position sensor, which is arranged on the water seal overflow pipe and can detect the position of the water level float.

[0008] Furthermore, the control mechanism also includes a main controller, which is communicatively connected with the intake valve controller and the position sensor, and the main controller can control the intake valve controller according to a detection signal of the position sensor.

[0009] Furthermore, it also includes an information receiving mechanism, which is communicatively connected with the main controller.

[0010] Furthermore, the air intake mechanism also includes a second air intake valve, which is connected to the first air intake valve, and the coal gas enters into the coal gas water seal device body through the second air intake valve and the first air intake valve in sequence.

[0011] Furthermore, it also includes a power supply device, which is connected to the main controller and can supply power to the main controller.

[0012] Analysis shows that the utility model discloses a gas water seal automatic gas shut-off device. The utility model allows the operator to complete various operations in a safe and reliable environment, which not only realizes the inherent safety of the operating environment, but also avoids the energy waste caused by long-term continuous leakage of gas. It has economic benefits, reduces gas pollution to the environment, and has good environmental benefits. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 1 A schematic structural diagram of an embodiment of the utility model.

[0015] Explanation of the accompanying drawings: 1. Water seal overflow pipe; 2. Water level float; 3. Second air inlet valve; 4. Position sensor; 5. First air inlet valve; 6. Air inlet valve controller; 7. Main controller; 8. Gas water seal device body. DETAILED DESCRIPTION

[0016] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as a part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present invention includes such modifications and variations within the scope of the appended claims and their equivalents.

[0017] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "connected", "connected" and "set" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components; they can be wired electrical connections, radio connections, or wireless communication signal connections. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0018] One or more examples of the utility model are shown in the attached drawings. The detailed description uses numbers and letters to refer to the features in the drawings. Similar or similar marks in the drawings and descriptions have been used to refer to similar or similar parts of the utility model. As used herein, the terms "first", "second", "third", and "fourth" are used interchangeably to distinguish one component from another, and are not intended to indicate the position or importance of individual components.

[0019] like Figure 1 As shown, according to an embodiment of the utility model, a gas water seal automatic gas shut-off device is provided, comprising: a gas water seal device body 8; a water level float 2, the water level float 2 is arranged at the top of the water seal overflow pipe 1 of the gas water seal device body 8, and the water level float 2 can detect the water level in the water seal overflow pipe 1; an air intake mechanism, the air intake mechanism is connected to the air inlet of the gas water seal device body 8, and the air intake mechanism can add gas into the gas water seal device body 8; a control mechanism, the control mechanism can obtain the position of the water level float 2, and control the working state of the air intake mechanism according to the position of the water level float 2.

[0020] Specifically, the water level in the water seal overflow pipe 1 is monitored by the water level float 2. The control mechanism determines the water level in the water seal overflow pipe 1 by obtaining the position of the water level float 2, and controls the air intake mechanism according to the judgment result, thereby avoiding continuing to add gas when the water level in the water seal overflow pipe 1 is low.

[0021] The air intake mechanism includes a first air intake valve 5 and an air intake valve controller 6. The first air intake valve 5 is connected to the air intake port. The control mechanism can control the working state of the first air intake valve 5 through the air intake valve controller 6. The control mechanism includes a position sensor 4. The position sensor 4 is arranged on the water seal overflow pipe 1. The position sensor 4 can detect the position of the water level float 2. The control mechanism also includes a main controller 7. The main controller 7 is connected to the air intake valve controller 6 and the position sensor 4 in communication. The main controller 7 can control the air intake valve controller 6 according to the detection signal of the position sensor 4.

[0022] The device also includes an information receiving mechanism, which is in communication with the main controller 7. The air intake mechanism also includes a second air intake valve 3, which is in communication with the first air intake valve 5, and the coal gas enters the coal gas water seal device body 8 through the second air intake valve 3 and the first air intake valve 5 in sequence. The device also includes a power supply device, which is connected to the main controller 7 and can supply power to the main controller 7.

[0023] Specifically, a position sensor 4 is installed next to the water level float 2, and the position sensor 4 is usually non-contact. The height of the non-contact position sensor 4 can be adjusted according to the model of the gas water seal device, and after adjustment, it is firmly fixed on the gas water seal device body 8. The non-contact position sensor 4 can directly detect the floating position information of the water level float 2. When the floating height of the water level float 2 reaches the same height as the non-contact position sensor 4, the non-contact position sensor 4 will be triggered to send a signal. The signal sent by the non-contact position sensor 4 is transmitted to the main controller 7. The main controller 7 identifies and processes the signal sent by the non-contact position sensor 4 to prevent misoperation. Finally, the main controller 7 sends an operation instruction to the intake valve controller 6, so that the first intake valve 5 is immediately closed to stop the gas leakage. At the same time, the controller can also send information to the outside world through the external communication signal line. The information content may include the position, number, time, position of the water level float 2, the action taken by the main controller 7, the execution status of the action of the first intake valve 5, and other information that can be collected. The inspection personnel can handle the information in time according to the information sent by the main controller 7.

[0024] Specifically, the position sensor 4 may be in any form such as a proximity switch, an inductive travel switch, or a photoelectric sensor.

[0025] Specifically, the first intake valve and the second intake valve may be in any form such as a pneumatic valve, an electric valve, or a hydraulic valve.

[0026] Specifically, the controller may be a computer processor, or other equipment or device that can recognize the signal of the position sensor 4 and send a corresponding output signal.

[0027] Specifically, the utility model can also work without the main controller 7, and directly transmit the signal sent by the non-contact position sensor 4 to the air intake valve controller 6, so that the first air intake valve 5 is immediately closed to stop the gas leakage. Since the actual water replenishment operation must be completed on site by the operator, the water level float 2 will maintain its state without water replenishment. Therefore, the first air intake valve 5 is always in a closed state, and there will be no gas leakage.

[0028] Specifically, the above two solutions can achieve that when the inspection personnel come to deal with it, the trace amount of gas that may have leaked on the scene has already been completely dissipated. This realizes the inherent safety of the working environment, and the leaked gas is blocked at the first time, eliminating the effect of waste.

[0029] From the above description, it can be seen that the above-mentioned embodiments of the utility model achieve the following technical effects: the device can automatically identify the position of the water level float 2 on the water seal anti-leakage device. When the position of the water level float 2 reaches the preset height, the air intake mechanism is automatically controlled to close, thereby safely and reliably blocking gas leakage. The position sensor 4 can also send a signal to the main controller 7, which identifies the reliability of the signal, and then controls the first air intake valve 5 to close, thereby safely and reliably blocking gas leakage. After the implementation of the utility model, the operator can complete various operations in a safe and reliable environment, which not only realizes the inherent safety of the operating environment, but also avoids the energy waste caused by the continuous leakage of gas for a long time, has economic benefits, and reduces gas pollution to the environment, with good environmental benefits.

[0030] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A gas water seal automatic gas shut-off device, characterized in that: include: Gas water seal device body; A water level float, which is arranged at the top of the water seal overflow pipe of the gas water seal device body, and can detect the water level in the water seal overflow pipe; An air intake mechanism, the air intake mechanism is connected to the air intake port of the gas water seal device body, and the air intake mechanism can add gas into the gas water seal device body; A control mechanism, wherein the control mechanism can obtain the position of the water level float and control the working state of the air intake mechanism according to the position of the water level float.

2. A gas water seal automatic gas shut-off device according to claim 1, characterized in that: The intake mechanism includes a first intake valve and an intake valve controller, the first intake valve is communicated with the intake port, and the control mechanism can control the working state of the first intake valve through the intake valve controller.

3. A gas water seal automatic gas shut-off device according to claim 2, characterized in that: The control mechanism comprises a position sensor, which is arranged on the water seal overflow pipe and can detect the position of the water level float.

4. A gas water seal automatic gas shut-off device according to claim 3, characterized in that: The control mechanism further includes a main controller, which is communicatively connected with both the intake valve controller and the position sensor. The main controller can control the intake valve controller according to a detection signal from the position sensor.

5. A gas water seal automatic gas shut-off device according to claim 4, characterized in that: It also includes an information receiving mechanism, which is communicatively connected with the main controller.

6. A gas water seal automatic gas shut-off device according to claim 2, characterized in that: The air intake mechanism further includes a second air intake valve, which is communicated with the first air intake valve, and the coal gas enters into the coal gas water seal device body through the second air intake valve and the first air intake valve in sequence.

7. A gas water seal automatic gas shut-off device according to claim 4, characterized in that: It also includes a power supply device, which is connected to the main controller and can supply power to the main controller.

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