Gas chamber piston early warning device

Abstract

The utility model provides a gas chamber piston early warning device, a balance slide block is arranged in a gas chamber, a fixed pulley mechanism can pull the balance slide block through a steel wire rope, the gas chamber piston early warning device comprises a force measuring mechanism, a fixed pulley mechanism and a piston mechanism, the fixed pulley mechanism is arranged on the force measuring mechanism, and the force measuring mechanism can detect the stress condition of the steel wire rope; a control mechanism and a first wireless module, the control mechanism is connected with the force measuring mechanism and the first wireless module, and the control mechanism processes an output signal of the force measuring mechanism and then sends the output signal through the first wireless module; the second wireless module can receive a signal sent by the first wireless module, the output mechanism can receive a signal output by the second wireless module and output the signal to the DCS, the force measuring mechanism detects the weight of the gas holder balance block, and the stress condition of a steel wire rope of the balance block is displayed in real time; and the background DCS control system carries out calculation and analysis, and gives an abnormal early warning in time, so that a worker can take countermeasures conveniently.

Description

Technical Field

[0001] The utility model relates to the field of piston equipment, in particular to a gas cabinet piston early warning device. Background Art

[0002] Currently, many 50,000 kW coke oven gas tanks and 100,000 kW converter gas tanks are equipped with six balancing sliders to adjust the balance of the piston inside the tank. The prior art lacks detection of the stress condition of the balancing slider, so that the stress condition of the balancing slider is unknown and it is impossible to determine whether it is working normally. In addition, when an abnormal condition occurs in the balancing slider, it is not easy to be discovered and it takes too long to take corresponding measures. Utility Model Content

[0003] The utility model aims to provide a gas tank piston early warning device, which can display the stress condition of the steel wire rope of the balance slider in real time and issue an early warning on the DCS control system.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas tank piston early warning device, the gas tank has a balancing slider, and a fixed pulley mechanism can pull the balancing slider through a steel wire rope, including: a force measuring mechanism, the fixed pulley mechanism is arranged on the force measuring mechanism, and the force measuring mechanism can detect the force condition of the steel wire rope; a control mechanism and a first wireless module, the control mechanism is connected to the force measuring mechanism and the first wireless module, the control mechanism processes the output signal of the force measuring mechanism and sends it through the first wireless module; a second wireless module and an output mechanism, the second wireless module can receive the signal sent by the first wireless module, and the output mechanism can receive the signal output by the second wireless module and output it to the DCS control system.

[0005] Furthermore, it also includes a base, and the force measuring mechanism and the fixed pulley mechanism are both arranged on the base.

[0006] Furthermore, the force measuring mechanism includes a plate-type sensor, the fixed pulley mechanism includes a pulley body and an axle housing, the axle housing is used to carry the pulley body, and the plate-type sensor is arranged between the axle housing and the base.

[0007] Furthermore, the control mechanism includes a weight transmitter module, a first main board and a charging management module. The output signal of the force measuring mechanism is processed by the weight transmitter module and transmitted to the first main board. The charging management module is used to control the working state of the first main board. The first main board can output the signal processed by the weight transmitter module to the second wireless module through the first wireless module.

[0008] Further, a wireless transmission meter is provided on the first wireless module, and a wireless reception meter is provided on the second wireless module. The first wireless module and the second wireless module transmit signals through the wireless transmission meter and the wireless reception meter.

[0009] Further, the output mechanism includes a second main board and an RS485 communication module. The second main board can receive the signal output by the second wireless module and output a force measurement signal to the DCS control system. The RS485 communication module is connected to the second main board.

[0010] Further, a display and a keyboard are further included. The display and the keyboard are both connected to the second main board, and the display can display the detection result of the force measurement mechanism.

[0011] Further, the current magnitude of the force measurement signal is 4 mA - 20 mA.

[0012] Further, the gas holder is a Wiggins gas holder.

[0013] Analysis shows that the present utility model discloses a gas holder piston early warning device. By detecting the weight of the balance block of the gas holder through a force measurement mechanism, the stress condition of the steel wire rope of the balance block is displayed in real time, and then the operation condition of the piston is inferred. Calculation and analysis are carried out on the background DCS control system, and abnormal early warning is made in time so that the staff can take countermeasures. Description of the Drawings

[0014] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. Among them:

[0015] Figure 1 The structural block diagram of an embodiment of the present utility model.

[0016] Figure 2 The structural schematic diagram of the force measurement mechanism of an embodiment of the present utility model.

[0017] Description of the reference numerals: 1, shaft housing; 2, plate sensor; 3, base. Detailed Embodiments

[0018] The present utility model 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 utility model rather than a limitation thereof. In fact, those skilled in the art will appreciate that modifications and variations can be made to the present utility model without departing from the scope or spirit thereof. For example, features shown or described as part of one embodiment can be used in another embodiment to yield yet another embodiment. Accordingly, it is intended that the present utility model encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0019] In the description of the present utility model, the orientation or positional relationship indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model rather than requiring the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model. The terms "connected", "connected to", and "disposed" used in the present utility model should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component; it can be a wired connection, a radio connection, or a wireless communication signal connection. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0020] One or more examples of the present utility model are shown in the accompanying drawings. The detailed description uses numerical and alphabetical labels to refer to features in the drawings. Similar or like labels in the drawings and the description have been used to refer to similar or like parts of the present utility model. As used herein, the terms "first", "second", "third", and "fourth", etc. can be used interchangeably to distinguish one component from another, and are not intended to indicate the position or importance of individual components.

[0021] As Figure 1-2 shown, according to an embodiment of the present utility model, a warning device for a piston of a gasholder is provided. A balance slider is provided inside the gasholder, and a fixed pulley mechanism can pull the balance slider through a steel wire rope. The device includes: a force measuring mechanism, the fixed pulley mechanism is disposed on the force measuring mechanism, and the force measuring mechanism can detect the force condition of the steel wire rope; a control mechanism and a first wireless module, the control mechanism is connected to the force measuring mechanism and the first wireless module, and the control mechanism processes the output signal of the force measuring mechanism and sends it out through the first wireless module; a second wireless module and an output mechanism, the second wireless module can receive the signal sent by the first wireless module, and the output mechanism can receive the signal output by the second wireless module and output it to a DCS control system.

[0022] Preferably, a base 3 is also included, and the force measuring mechanism and the fixed pulley mechanism are both arranged on the base 3. The force measuring mechanism includes a plate sensor 2, the fixed pulley mechanism includes a pulley body and an axle housing 1, the axle housing 1 is used to carry the pulley body, and the plate sensor 2 is arranged between the axle housing 1 and the base 3. The plate sensor 2 adopts a bridge structure, which is easy to install and use, has strong anti-side ability, high reliability, and high measurement accuracy. The force measuring mechanism is installed at the fixed pulley position on the top of the gas tank, and the plate sensor 2 is used to replace the original pad under the support points on both sides of each fixed pulley. Each balancing slider is pulled by two fixed pulleys, so each balancing slider needs to be installed with two plate sensors 2, and the first wireless module is installed on the side of the fixed pulley. The wireless transmitting instrument integrates the force measurement weight transmission function and the wireless data transmission function. The wireless transmitting instrument is a dual-channel sensor interface, which can access the signals of two force measuring sensors, is powered by 220V, and has a wireless receiving instrument for matching response in the control room.

[0023] Preferably, the control mechanism includes a weight transmitter module, a first main board and a charging management module. The output signal of the force measuring mechanism is processed by the weight transmitter module and transmitted to the first main board. The charging management module is used to control the working state of the first main board. The first main board can output the signal processed by the weight transmitter module to the second wireless module through the first wireless module.

[0024] Preferably, the first wireless module is provided with a wireless transmitting instrument, and the second wireless module is provided with a wireless receiving instrument, and the first wireless module and the second wireless module transmit signals through the wireless transmitting instrument and the wireless receiving instrument. The wireless receiving instrument is installed in the control room and adopts an ordinary wall-mounted instrument. The antenna of the wireless receiving instrument can usually extend to the outdoors or close to the window to ensure the reliability of wireless transmission. The wireless receiving instrument is a dual-channel force measuring instrument with a double-row data display window, which can simultaneously display the real-time force measurement value of each wire rope. The wireless receiving instrument has 2 independent 4mA-20mA current outputs, which can independently transmit the force measurement value of each wire rope to the DCS control system. The instrument also has an interface for the RS485 communication module.

[0025] Preferably, the output mechanism includes a second main board and an RS485 communication module. The second main board can receive the signal output by the second wireless module and output the force measurement signal to the DCS control system. The RS485 communication module is connected to the second main board. The current of the force measurement signal is 4mA-20mA. The DCS control system can infer the operating status of the piston based on the value of the force measurement signal, and can issue an early warning and interlock the gas cabinet inlet and outlet valves under abnormal conditions.

[0026] Preferably, it also includes a display and a keyboard, both of which are connected to the second mainboard. The display can display the detection results of the force measuring mechanism, and the display and the keyboard can realize human-computer interaction, so as to process the information in the early warning device.

[0027] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: By detecting the weight of the counterweight of the gas holder through the force measuring mechanism, the force on the wire rope of the counterweight is displayed in real time, and then the piston operation condition is inferred. Calculation and analysis are carried out on the background DCS control system to give an abnormal warning in time so that the staff can take corresponding measures.

[0028] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A gas tank piston warning device, wherein the gas tank has a balancing slider, and a fixed pulley mechanism can pull the balancing slider through a wire rope, characterized in that: include: A force measuring mechanism, on which the fixed pulley mechanism is arranged, and the force measuring mechanism can detect the force condition of the steel wire rope; A control mechanism and a first wireless module, wherein the control mechanism is connected to the force measuring mechanism and the first wireless module, and the control mechanism processes the output signal of the force measuring mechanism and sends it through the first wireless module; A second wireless module and an output mechanism, wherein the second wireless module can receive the signal sent by the first wireless module, and the output mechanism can receive the signal output by the second wireless module and output it to the DCS control system.

2. A gas tank piston warning device according to claim 1, characterized in that: It also includes a base, and the force measuring mechanism and the fixed pulley mechanism are both arranged on the base.

3. A gas tank piston warning device according to claim 2, characterized in that: The force measuring mechanism comprises a plate-type sensor, the fixed pulley mechanism comprises a pulley body and an axle housing, the axle housing is used to carry the pulley body, and the plate-type sensor is arranged between the axle housing and the base.

4. A gas tank piston warning device according to claim 1, characterized in that: The control mechanism includes a weight transmitter module, a first main board and a charging management module. The output signal of the force measuring mechanism is processed by the weight transmitter module and transmitted to the first main board. The charging management module is used to control the working state of the first main board. The first main board can output the signal processed by the weight transmitter module to the second wireless module through the first wireless module.

5. The gas tank piston warning device according to claim 1, characterized in that: The first wireless module is provided with a wireless transmitting instrument, and the second wireless module is provided with a wireless receiving instrument. The first wireless module and the second wireless module transmit signals via the wireless transmitting instrument and the wireless receiving instrument.

6. A gas tank piston warning device according to claim 1, characterized in that: The output mechanism includes a second mainboard and an RS485 communication module. The second mainboard can receive the signal output by the second wireless module and output the force measurement signal to the DCS control system. The RS485 communication module is connected to the second mainboard.

7. A gas tank piston warning device according to claim 6, characterized in that: It also includes a display and a keyboard, wherein the display and the keyboard are both connected to the second mainboard, and the display can display the detection result of the force measuring mechanism.

8. The gas tank piston warning device according to claim 6, characterized in that: The current magnitude of the force measurement signal is 4mA-20mA.

9. The gas tank piston warning device according to claim 1, characterized in that: The gas tank is a Wiggins gas tank.

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