Novel explosion-proof operation column

Abstract

The utility model relates to the field of chemical plant electrical equipment, in particular to a novel explosion-proof operation column. Comprising an operation column box which is used for accommodating a motor control protector and an operation display module. A control panel is detachably arranged on the front face of the operation column box. The control panel is sequentially provided with an explosion-proof glass window, operation display module operation buttons corresponding to operation keys of an operation display module installed in the operation column box, two indicator lights of the motor and two operation buttons of the motor from top to bottom. The operation display module operation button comprises a pressing rod sleeve, a pressing rod, a reset spring, a positioning nut and a protective cap. According to the novel explosion-proof operation column, a motor control protector is arranged in a closed cavity in the operation column and is isolated from the external environment, even if electric sparks are generated, combustible gas possibly leaked in a device area of a petrochemical enterprise cannot be ignited, and the safety is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of electrical equipment in chemical plants, in particular to a novel explosion-proof operating column. Background Art

[0002] In petrochemical plant installations, most motors use motor control protectors (MCPs) for motor protection and monitoring of operating parameters. These MPCs typically consist of the MPC, monitoring components, a communication cable connecting the MPC to an operator display module, and the operator display module. Given the potential for flammable gas leaks within petrochemical plant installations, the motors and MPCs are typically separated to prevent sparks from the MPCs during operation, potentially igniting flammable gases. The MPCs are typically located in the power distribution room, away from the on-site environment.

[0003] In the petrochemical plant's power distribution room, the motor control protector is installed in the distribution cabinet, and the operation display module is installed on the distribution cabinet's operating panel. Because the distribution room is remote from the site, process operators cannot monitor the motor's operating current in real time. Often, the motor stalls due to excessive flow control caused by valves in the equipment. In this case, the process operator contacts the power maintenance personnel, who then searches the distribution room for the stalled motor based on the information provided by the process operator. Due to the large scale of the petrochemical plant, there are several distribution rooms located relatively far apart. When a motor stalls due to overload, it is time-consuming and laborious to locate and reset the motor based on the information provided by the process operator.

[0004] Therefore, a solution is needed to enable the motor control protector to be arranged in the field in a known manner. Utility Model Content

[0005] The utility model provides a novel explosion-proof operating column, which aims to solve the problem in the prior art that a motor control protector must not be arranged near the motor in order to avoid ignition of combustible gas by electric sparks generated by the motor control protector.

[0006] In order to achieve the above purpose, the technical solution of the utility model is:

[0007] The utility model provides a novel explosion-proof operating column, comprising an operating column box, wherein the operating column box is used to accommodate a motor control protector and an operation display module; a control panel is detachably provided on the front of the operating column box, and the operating column box is sealed to the control panel;

[0008] The control panel is provided with an explosion-proof glass window corresponding to the display screen of the operation display module installed inside the operation column box, an operation button of the operation display module corresponding to the operation key of the operation display module installed inside the operation column box, two indicator lights of the motor and two operation buttons of the motor from top to bottom;

[0009] The operation button of the operation display module includes a pressure rod sleeve, a pressure rod, a reset spring, a positioning nut and a protective cap; the pressure rod sleeve is a copper middle-through structure, and the pressure rod sleeve is sealed and arranged on the control panel; the pressure rod is a copper round rod with a disc stop at the head, and the tail of the pressure rod is provided with a thread; the tail end of the pressure rod passes through the reset spring and the through hole of the pressure rod sleeve in turn and engages with the positioning nut thread; the reset spring is sleeved on the round rod part of the pressure rod, and the reset spring is arranged between the disc stop and the pressure rod sleeve; the protective cap is detachable and tightly sleeved on the pressure rod sleeve and is sealed.

[0010] Furthermore, the operation column box is arranged at the top end of the operation column support rod.

[0011] Furthermore, an operating column base is provided at the bottom end of the operating column support rod.

[0012] Furthermore, the control panel and the operation column box are detachably connected via control panel fixing bolts, and a sealing ring is provided between the control panel and the operation column box.

[0013] Furthermore, the outer wall of the pressure rod sleeve is provided with a thread, and the pressure rod sleeve is sealed and fixed after being threadedly engaged with the threaded through hole of the control panel.

[0014] The beneficial effects achieved by the utility model are:

[0015] The utility model discloses a novel explosion-proof operating column, in which a motor control protector is arranged in a sealed cavity therein and isolated from the external environment. Even if an electric spark is generated, combustible gas that may leak in the device area of ​​a petrochemical enterprise cannot be ignited, thereby greatly improving safety. Therefore, the motor control protector can be arranged near the motor.

[0016] In addition, the present invention integrates an operation display module of the motor control protector, an explosion-proof glass window for viewing the real-time operation information of the motor, and an operation button for controlling the motor control protector. The explosion-proof glass window of the present invention facilitates process operators to view the motor operation information in real time, avoiding the overload and shutdown of the motor caused by the excessive flow control of the operating equipment valve, thereby reducing the failure rate of power equipment such as motors, and facilitating power maintenance personnel to quickly find faulty motors and fault information, thereby improving the repair speed of faulty motors. The operation button of the present invention facilitates power maintenance personnel to reset the faulty motor and perform fault handling operations. Both of the above points are conducive to the stable operation of petrochemical enterprise equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 It is the main view of the present utility model.

[0019] Figure 2 This is a schematic diagram of the operation display module of the motor control protector.

[0020] Figure 3 It is a schematic diagram of the structure of the operation buttons of the operation display module of the present utility model.

[0021] Figure 4 It is an exploded view of the operation button of the operation display module of the utility model.

[0022] Figure 5 It is a cross-sectional view of the operation button of the operation display module of the utility model.

[0023] In the figure, 1. Operation column box; 2. Control panel fixing bolts; 3. Operation column support rod; 4. Operation column base; 5. Explosion-proof glass window; 6. Operation display module operation button; 61. Pressure rod sleeve; 62. Pressure rod; 63. Return spring; 64. Positioning nut; 65. Protective cap; 7. Indicator light; 8. Operation button. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] like Figures 1 to 5 As shown, the utility model provides a new explosion-proof operating column, including an operating column box 1, a control panel fixing bolt 2, an operating column support rod 3, an operating column base 4, an explosion-proof glass window 5, an operation display module operation button 6, an indicator light 7 and an operation button 8.

[0028] A control panel is provided on the front of the operation column box 1. The control panel and the operation column box 1 are detachably connected via control panel fixing bolts 2. A sealing ring is provided between the control panel and the operation column box 1. The control panel and the operation column box 1 form a closed cavity for accommodating the motor control protector and the operation display module.

[0029] The control panel is provided with, from top to bottom, an explosion-proof glass window 5 corresponding to the display screen of the operation display module installed inside the operation column box 1, an operation display module operation button 6 corresponding to the operation key of the operation display module installed inside the operation column box 1, two indicator lights 7 of the motor and two operation buttons 8 of the motor. The two indicator lights 7 are used to display whether the motor is running or stopped, and the two operation buttons 8 are used to control the start and shutdown of the motor; wherein, the operation button 8 is an explosion-proof button 8.

[0030] The operation column box 1 is arranged at the top end of the operation column support rod 3 , and the operation column support rod 3 is used to support the operation column box 1 .

[0031] The operating column base 4 is disposed at the bottom end of the operating column support rod 3 , and the operating column base 4 is used to fix the operating column support rod 3 .

[0032] The explosion-proof glass window 5 is arranged on the control panel of the operation column box 1 corresponding to the display screen of the display module installed inside the operation column box 1 .

[0033] The operation display module operation button 6 is arranged on the control panel of the operation column box 1 corresponding to the operation key of the display module installed inside the operation column box 1; the process operator triggers the operation key of the display module through the operation display module operation button 6 to control the motor control protector.

[0034] The indicator light 7 is arranged on the control panel.

[0035] The operation button 8 is arranged on the control panel.

[0036] The operation display module operation button 6 includes a pressure rod sleeve 61 , a pressure rod 62 , a return spring 63 , a positioning nut 64 and a protective cap 65 .

[0037] The pressure rod sleeve 61 is a copper hollow structure with a threaded outer wall for sliding through the pressure rod 62. The threaded outer wall is threaded for threaded engagement with the threaded through hole on the control panel of the operation column box 1 to seal and fix the pressure rod sleeve 61.

[0038] The pressure rod 62 is a round rod with a disc stopper at the head, made of copper. The tail end of the round rod is provided with an external thread, and the tail end of the pressure rod 62 passes through the through hole of the reset spring 63 and the pressure rod sleeve 61 in sequence and then engages with the positioning nut 64 threadedly.

[0039] The return spring 63 is sleeved on the round rod portion of the pressure rod 62 . The return spring 63 is arranged between the disc stop and the pressure rod sleeve 61 , and plays the role of returning the pressure rod 62 after being pressed.

[0040] The positioning nut 64 is sleeved on the pressure rod 62 and threadedly engaged with the external threaded portion at the rear end of the pressure rod 62. The positioning nut 64 and the return spring 63 cooperate to movably set the pressure rod 62 on the pressure rod sleeve 61.

[0041] The protective cap 65 is detachably and tightly fitted onto the pressure rod sleeve 61 and is sealed, which not only protects the operation display module operation button 6 from rain erosion, but also meets the explosion-proof requirements in the device area.

[0042] When the motor fails, the process operator arrives at the site, removes the protective cap 65 after ensuring that there is no leakage of combustible gas, and triggers the corresponding operation key by pressing the pressure rod 62.

[0043] When used specifically:

[0044] For process operators:

[0045] The process operator can observe the real-time operating parameters of the motor displayed on the display screen of the operation display module inside the operation column box 1 at any time through the explosion-proof glass window 5 of the utility model.

[0046] Therefore, the process operator can operate the equipment valve to control the flow rate by using the real-time operating parameters of the motor displayed on the display screen of the operation display module, thereby avoiding the phenomenon of the motor overloading and stopping due to excessive control flow.

[0047] For electrical maintenance personnel:

[0048] When the process operator contacts and the motor stops due to a fault, the power maintenance personnel arrive at the faulty motor site and can operate the operation display module through the operation button 6 of the operation display module of the utility model to find the cause of the motor fault and the operating parameters.

[0049] If the motor stops due to overload, the operation button 6 of the operation display module can be directly used to reset the motor, and then the process operator is informed to avoid the phenomenon of motor overload and stoppage caused by excessive control flow.

[0050] If the motor stops due to a fault, you can check the cause of the fault, then go to the distribution room to perform a series of safety operations such as powering off, and then repair the motor.

[0051] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by utilizing the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A new explosion-proof operating column, characterized by: The invention comprises an operation column box (1), wherein the operation column box (1) is used to accommodate a motor control protector and an operation display module; a control panel is detachably provided on the front of the operation column box (1), and the operation column box (1) is sealedly connected to the control panel; The control panel is provided with, from top to bottom, an explosion-proof glass window (5) corresponding to a display screen of an operation display module installed inside the operation column box (1), an operation display module operation button (6) corresponding to an operation key of the operation display module installed inside the operation column box (1), two indicator lights (7) of the motor, and two operation buttons (8) of the motor; The operation display module operation button (6) comprises a pressure rod sleeve (61), a pressure rod (62), a reset spring (63), a positioning nut (64) and a protective cap (65); the pressure rod sleeve (61) is a copper middle-through structure, and the pressure rod sleeve (61) is sealed and arranged on the control panel; the pressure rod (62) is a copper round rod with a disc stop at the head, and the tail of the pressure rod (62) is provided with a thread; the tail end of the pressure rod (62) passes through the reset spring (63) and the through hole of the pressure rod sleeve (61) in sequence and then engages with the positioning nut (64) through the thread; the reset spring (63) is sleeved on the round rod part of the pressure rod (62), and the reset spring (63) is arranged between the disc stop and the pressure rod sleeve (61); the protective cap (65) is detachably sleeved on the pressure rod sleeve (61) and is sealed.

2. A novel explosion-proof operating column according to claim 1, characterized in that: The operation column box (1) is arranged at the top end of the operation column support rod (3).

3. The novel explosion-proof operating column according to claim 2, characterized in that: An operating column base (4) is provided at the bottom end of the operating column support rod (3).

4. The novel explosion-proof operating column according to claim 1 is characterized in that: The control panel and the operation column box (1) are detachably connected via control panel fixing bolts (2), and a sealing ring is provided between the control panel and the operation column box (1).

5. The novel explosion-proof operating column according to claim 1 is characterized in that: The outer wall of the pressure rod sleeve (61) is provided with a thread, and the pressure rod sleeve (61) is threadedly engaged with the threaded through hole of the control panel and sealed and fixed.

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