Fault detection device for injection valve of dust remover

Abstract

The utility model discloses a fault detection device for a blowing valve of a dust remover, which relates to the technical field of dust removers, and one end of a blowing pipe of the dust remover is provided with the blowing valve for opening and closing the blowing pipe. The upper part of the swinging block is hinged to the mounting frame through a hinge shaft; the swing in-place sensor is mounted on the mounting frame; the detection end of the swing in-place sensor corresponds to the lower part of one side wall of the swing block in the axial direction of the hinge shaft in a static state so as to detect the swing state of the swing block; an air inlet of the air blowing branch pipe is connected and communicated with the blowing pipe, and an air outlet of the air blowing branch pipe corresponds to the lower part of one side wall in the swinging direction of the swinging block so as to drive the swinging block to swing away from the detection end of the swinging in-place sensor during air blowing; and the controller is electrically connected with the blowing valve and the swing in-place sensor so as to receive a detection signal sent by the swing in-place sensor. The working state of the electromagnetic pulse valve can be diagnosed in time, so that the dust removal effect is prevented from being influenced, and the dust remover can be ensured to have a better dust removal effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust remover technical field especially is related to a dust remover injection valve fault detection device. BACKGROUND

[0002] The dust remover needs to be cleaned in time when the resistance reaches a certain value, and a spray pipe is installed in the existing bag type dust remover. The spray pipe sprays compressed air or high pressure gas to clean the dust on the filter bag or filter material in the dust remover. When the dust on the filter bag accumulates to a certain extent, the spray pipe sprays high pressure gas to the inside or surface of the filter bag to shake off the dust on the filter bag and achieve the purpose of cleaning. A large dust remover usually has multiple parallel spray pipes, and each spray pipe is equipped with an electromagnetic pulse valve for controlling the operation of the spray pipe. When a certain electromagnetic pulse valve fails, the corresponding spray pipe cannot perform normal dust removal, which reduces the efficiency of the dust remover.

[0003] A bag type dust remover is disclosed in Chinese patent (authorized publication number CN208990412U, authorized publication date 2019.06.18), which includes an air compressor, an air main pipe, and a spray pipe. The air outlet of the air compressor is connected to the air main pipe, and the air main pipe is connected to multiple spray pipes corresponding to each group of filter bags. A large diameter electromagnetic pulse valve is connected between the spray pipe and the air main pipe to control the operation of the spray pipe. Each spray pipe is equipped with multiple nozzles for washing each filter bag. It can be seen that the technical solution has multiple electromagnetic pulse valves, and the spray pipe and the electromagnetic pulse valve are located in the box. When the electromagnetic pulse valve fails, the spray pipe cannot spray or the spraying force is insufficient, which is difficult to detect and diagnose.

[0004] Therefore, how to provide a dust remover injection valve fault detection device that can diagnose the working state of the electromagnetic pulse valve in time to avoid affecting the dust removal effect and reducing the efficiency of the dust remover is a problem that needs to be solved by those skilled in the art. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a dust remover injection valve fault detection device to solve the technical problem that the electromagnetic pulse valve of the traditional dust remover cannot be diagnosed in time when it fails.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a dust remover injection valve fault detection device, and one end of the spray pipe of the dust remover is equipped with a spray valve for opening and closing the spray pipe, which comprises:

[0008] A mounting bracket;

[0009] A swing block, an upper part of the swing block is hinged to the mounting frame through a hinge shaft and can swing around the hinge shaft;

[0010] A swing-to-position sensor, the swing-to-position sensor is installed on the mounting frame; a detection end of the swing-to-position sensor corresponds to a lower part of a side wall of the swing block along an axial direction of the hinge shaft in a static state to detect a swing state of the swing block;

[0011] A blowing branch pipe, an air inlet of the blowing branch pipe is connected to and communicates with the blowing pipe, and an air outlet of the blowing branch pipe corresponds to a lower part of a side wall in a swing direction of the swing block to drive the swing block to swing away from the detection end of the swing-to-position sensor when blowing;

[0012] A controller, the controller is electrically connected to the blowing valve and the swing-to-position sensor to control opening and closing of the blowing valve and to receive a detection signal sent by the swing-to-position sensor.

[0013] The dust remover blowing valve fault detection device diagnoses whether the blowing valve is faulty by detecting a swing state of the swing block; when the blowing valve is closed and the blowing pipe does not perform blowing and dust removing, the air outlet of the blowing branch pipe has no airflow, the swing block is in a static state, and is blocked at the detection end of the swing-to-position sensor; at this time, the swing-to-position sensor can send a state signal to the controller to feedback that the swing block is in the static state. When the blowing valve is opened and the blowing pipe blows to remove dust, the air outlet of the blowing branch pipe also blows, under the action of the airflow, the swing block swings by a certain angle and leaves the detection end of the swing-to-position sensor; at this time, the swing-to-position sensor can send another state signal to the controller to feedback that the swing block is in a swing state. The controller can diagnose whether the blowing valve is faulty by receiving the feedback signal of the swing-to-position sensor and combining the opening and closing state of the blowing valve. The dust remover can diagnose the working state of the blowing valve in time, can avoid affecting the dust removing effect, and can ensure stable working of the dust remover.

[0014] As a further improvement of the above technical solution, the mounting frame comprises a base, a vertical plate one and a vertical plate two, the plate faces of the vertical plate one and the vertical plate two are arranged in parallel and are both vertically fixed on the upper end face of the base;

[0015] The swing block is located between the vertical plate one and the vertical plate two, and an upper part of the swing block is hinged to opposite side walls of the vertical plate one and the vertical plate two through a hinge shaft;

[0016] The swing-to-position sensor is installed on the vertical plate one or the vertical plate two, and a detection end of the swing-to-position sensor corresponds to a lower part of a side wall of the swing block along an axial direction of the hinge shaft in a static state.

[0017] The swing block is hinged to the vertical plate one and the vertical plate two through the hinge shaft, and the structure is simple and stable.

[0018] As a further improvement of the above technical solution, the plate surface of the first or second vertical plate is provided with a mounting through hole, and the detection end of the swing-to-position sensor is embedded in the mounting through hole.

[0019] The beneficial effects of the above technical solution are that the detection end of the swing-to-position sensor is embedded in the mounting through hole, and the swing of the swing block is not interfered.

[0020] As a further improvement of the above technical solution, the base is installed on the blowing pipe through a pipe clamp.

[0021] As a further improvement of the above technical solution, the swing block is provided with a groove corresponding to the side wall of the air outlet of the blowing branch pipe; and the air outlet of the blowing branch pipe is located inside the groove.

[0022] The beneficial effects of the above technical solution are that the air outlet of the blowing branch pipe is arranged in the groove, and the sensitivity of the swing block to the airflow of the air outlet of the blowing branch pipe is improved.

[0023] As a further improvement of the above technical solution, the swing-to-position sensor is any one of a capacitive position sensor, a Hall position sensor, an inductive position sensor, and an optical fiber displacement sensor.

[0024] Through the above technical solution, compared with the prior art, the utility model discloses a dust remover blowing valve fault detection device, which has the following advantages and beneficial effects:

[0025] 1、The dust remover blowing valve fault detection device sets up blowing branch pipes on the blowing pipe to lead out airflow, and judges whether high-pressure gas is in the blowing pipe by whether the swing block swings away from the balance position, and then detects and feeds back the swing state of the swing block through the swing-to-position sensor.

[0026] 2、The dust remover blowing valve fault detection device can quickly diagnose the blowing valve with faults in the large dust remover with multiple blowing pipes and multiple blowing valves, thereby effectively ensuring the dust removal effect of the dust remover and improving the fault maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0028] Figure 1 The utility model discloses a dust remover blow valve fault detection device whole structure perspective view schematic diagram;

[0029] Figure 2 The utility model discloses a dust remover blow valve fault detection device's swing block is in the front view schematic diagram of static state;

[0030] Figure 3 The utility model discloses a dust remover blow valve fault detection device plan view schematic diagram;

[0031] Figure 4 The utility model discloses a dust remover blow valve fault detection device's vertical board one structure schematic diagram;

[0032] Figure 5 The utility model discloses a dust remover blow valve fault detection device's vertical board two structure schematic diagram;

[0033] In the drawing: 1, mounting frame;11, base;111, fixed hole;12, vertical board one;121, mounting through hole;122, shaft hole one;13, vertical board two;131, shaft hole two;2, swing block;21, recess;3, swing in place sensor;4, blow branch pipe;5, blow pipe;6, blow valve;7, pipe clamp;8, hinged shaft. DETAILED DESCRIPTION

[0034] The embodiments of the present application will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0035] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0036] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purpose and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0037] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] According to the embodiment of the utility model, as shown in Figures 1 to 5 A dust remover blowing valve fault detection device, the dust remover blowing pipe 5 one end is provided with the blowing valve 6 that opens and closes blowing pipe 5, comprising: mounting bracket 1, swing block 2, swing to place sensor 3, blowing branch pipe 4 and controller.

[0039] Mounting bracket 1 is arranged on blowing pipe 5 or in the dust remover tank body;

[0040] Swing block 2 upper portion is hinged on mounting bracket 1 through hinge shaft 8 and can swing around hinge shaft 8;

[0041] Swing to place sensor 3 is installed on mounting bracket 1;The detection end of swing to place sensor 3 corresponds to the lower part of the side wall of swing block 2 in the axial direction in the static state, to detect the swing state of swing block 2;

[0042] The air inlet of blowing branch pipe 4 is connected and communicated with blowing pipe 5, and the air outlet corresponds to the lower part of the side wall in the swing direction of swing block 2, to drive swing block 2 to swing away from the detection end of swing to place sensor 3 when blowing;

[0043] The controller is electrically connected with blowing valve 6 and swing to place sensor 3 to receive the detection signal sent by swing to place sensor 3.

[0044] The dust remover spray valve fault detection device of the embodiment diagnoses whether the spray valve 6 is faulty by detecting the swing state of the swing block 2; when the spray valve 6 is closed and does not spray dust removal, the gas outlet of the blowing branch pipe 4 has no airflow, and the swing block 2 is in a static state and blocks the detection end of the swing to position sensor 3; at this time, the swing to position sensor 3 can send a state signal to the controller to feedback that the swing block 2 is in a static state. When the spray valve 6 is opened and the blowing pipe 5 sprays dust removal, the gas outlet of the blowing branch pipe 4 will also blow air, and under the action of the airflow, the swing block 2 swings by a certain angle and leaves the detection end of the swing to position sensor 3; at this time, the swing to position sensor 3 can send another state signal to the controller to feedback that the swing block 2 is in a swing state. The controller can diagnose whether the spray valve 6 is faulty by receiving the feedback signal of the swing to position sensor 3 and combining the opening and closing state of the spray valve 6. The utility model can diagnose the working state of the spray valve 6 in time, can avoid affecting the dust removal effect, and ensures the stable work of the dust remover.

[0045] In some embodiments, the mounting rack 1 comprises a base 11, a first vertical plate 12 and a second vertical plate 13, the plate surfaces of the first vertical plate 12 and the second vertical plate 13 are horizontally and oppositely arranged in parallel and are both vertically welded and fixed on the upper end surface of the base 11;

[0046] The swing block 2 is located between the first vertical plate 12 and the second vertical plate 13, and the upper part thereof is hinged to the opposite side walls of the first vertical plate 12 and the second vertical plate 13 through a hinge shaft 8;

[0047] The swing to position sensor 3 is installed on the first vertical plate 12 or the second vertical plate 13, and the detection end thereof corresponds to the lower part of one side wall in the axial direction of the swing block 2 in the static state.

[0048] The swing block 2 is hinged between the first vertical plate 12 and the second vertical plate 13 through the hinge shaft 8, which is simple and stable in structure.

[0049] Specifically, the plate surface of the first vertical plate 12 is provided with a shaft hole one 122 near the top end, the plate surface of the second vertical plate 13 is provided with a shaft hole two 131 near the top end and corresponding to the shaft hole one 122, and the two ends of the hinge shaft 8 are correspondingly and rotatably inserted into the shaft hole one 122 and the shaft hole two 131. The swing block 2 is a cuboid, and the width direction of the swing block 2 is arranged in the opposite direction of the first vertical plate 12 and the second vertical plate 13; one end of the swing block 2 in the length direction is provided with a through hole in the width direction, and the hinge shaft 8 is rotatably inserted into the through hole to hinge the swing block 2 between the first vertical plate 12 and the second vertical plate 13.

[0050] In some embodiments, the plate surface of the first vertical plate 12 or the second vertical plate 13 is provided with a mounting through hole 121, and the detection end of the swing to position sensor 3 is embedded and adhesively fixed in the mounting through hole 121.

[0051] The detection end of the swing-to-position sensor 3 is embedded in the mounting through hole 121, and can not interfere with the swing of the swing block 2.

[0052] Specifically, the swing-to-position sensor 3 is a non-contact position sensor, and the detection end of the swing-to-position sensor 3 is spaced apart from the swing block 2 along the axis of the hinge shaft 8.

[0053] In some embodiments, the base 11 is mounted on the blowing pipe 5 through the pipe clamp 7.

[0054] Specifically, two fixing holes 111 are formed on one side of the base 11 corresponding to the stand plate one 12 and the stand plate two 13; the two fixing holes 111 are arranged in a spaced apart manner along the opposite directions of the stand plate one 12 and the stand plate two 13; the pipe clamp 7 can be a U-shaped pipe clamp, which is sleeved on the blowing pipe 5 and has two ends passing through the two fixing holes 111 one by one and being fixed by nuts. Of course, the fixing mode of the base 11 and the blowing pipe 5 can also be fixed by welding.

[0055] In some embodiments, a groove 21 is formed in the side wall of the swing block 2 corresponding to the gas outlet of the blowing branch pipe 4; the gas outlet of the blowing branch pipe 4 is located inside the groove 21.

[0056] The gas outlet of the blowing branch pipe 4 is arranged in the groove 21, which can improve the sensitivity of the swing block 2 to the gas flow of the gas outlet of the blowing branch pipe 4.

[0057] Specifically, the base 11 is fixed on the upper end of the blowing pipe 5; the blowing pipe 5 has a gas outlet hole on the side corresponding to the base 11; the blowing branch pipe 4 can be a 90-degree elbow pipe, one end of which is welded and communicated with the gas outlet hole of the blowing pipe 5, and the other end is parallel to the upper end surface of the base 11 and extends into the groove 21 of the swing block 2.

[0058] In some embodiments, the swing-to-position sensor 3 is any one of a capacitive position sensor, a Hall position sensor, an inductive position sensor, and an optical fiber displacement sensor. The specific installation, arrangement and debugging of the swing-to-position sensor 3 are prior art, which will not be described here.

[0059] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0060] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A dust collector injection valve failure detection device, a dust collector injection pipe (5) one end is provided with an injection valve (6) which opens and closes the injection pipe (5), characterized in that, The utility model relates to a swing block position sensor, which comprises: a mounting frame (1), a swing block (2) hinged to the mounting frame (1) by a hinge shaft and capable of swinging around the hinge shaft, a swing-to-position sensor (3) mounted on the mounting frame (1), the detection end of the swing-to-position sensor (3) corresponding to the lower part of the side wall of the swing block (2) in the axial direction of the hinge shaft in the static state to detect the swing state of the swing block (2), a blowing branch pipe (4) with its air inlet connected to and communicated with the blowing pipe (5) and its air outlet corresponding to the lower part of the side wall in the swing direction of the swing block (2) to drive the swing block (2) to swing away from the detection end of the swing-to-position sensor (3) when blowing, a controller electrically connected to the blowing valve (6) and the swing-to-position sensor (3) to control the opening and closing of the blowing valve (6) and receive the detection signal sent by the swing-to-position sensor (3).

2. The device for detecting the failure of the injection valve of the dust collector according to claim 1, characterized in that, The mounting frame (1) comprises a base (11), a vertical plate one (12), and a vertical plate two (13), the plate surfaces of the vertical plate one (12) and the vertical plate two (13) are arranged in parallel and are both vertically fixed to the upper end surface of the base (11). The swing block (2) is located between the vertical plate one (12) and the vertical plate two (13) and is hinged to the opposite side walls of the vertical plate one (12) and the vertical plate two (13) by a hinge shaft. The swing-to-position sensor (3) is mounted on the vertical plate one (12) or the vertical plate two (13) and its detection end corresponds to the lower part of the side wall of the swing block (2) in the axial direction of the hinge shaft in the static state.

3. The device for detecting a fault of a spray valve of a dust collector according to claim 2, wherein The plate surface of the vertical plate one (12) or the vertical plate two (13) is provided with a mounting through hole (121), and the detection end of the swing-to-position sensor (3) is embedded in the mounting through hole (121).

4. The device for detecting the failure of the injection valve of the dust collector according to claim 2, characterized in that, The base (11) is mounted on the blowing pipe (5) by a pipe clamp.

5. The device for detecting the failure of the injection valve of the dust collector according to claim 1, wherein The swing block (2) is provided with a groove (21) corresponding to the side wall of the air outlet of the blowing branch pipe (4), and the air outlet of the blowing branch pipe (4) is located inside the groove (21).

6. The device for detecting a fault of a spray valve of a dust collector according to claim 1, wherein The swing-to-position sensor (3) is any one of a capacitive position sensor, a Hall position sensor, an inductive position sensor, and an optical fiber displacement sensor.

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