CN113433398B

CN113433398B - Micro-charge induction device and dust removal system

Info

Publication number: CN113433398B
Application number: CN202110525282.7A
Authority: CN
Inventors: 谭险峰; 黄涛
Original assignee: CHENGDU RUIKELIN ENGINEERING TECHNOLOGY CO LTD
Current assignee: CHENGDU RUIKELIN ENGINEERING TECHNOLOGY CO LTD
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2024-03-19
Anticipated expiration: 2041-05-10
Also published as: CN113433398A

Abstract

The application discloses little charge induction system and dust pelletizing system, little charge induction system's probe's detection scope is bigger. The microcharge sensing device includes a probe which, in use, is inserted into an airflow passageway and which generates and outputs a current signal as particulate matter in the airflow passageway passes through the probe, the current signal being used as an input signal to a signal processing system, the probe comprising: the induction part comprises an induction linear array, the induction linear array is provided with at least two induction lines connected together, and the induction linear array is approximately distributed on the same cross section of the airflow channel when in use; and the output part is connected and conducted with each induction wire in the induction linear array at the same time and is used for outputting a current signal generated by each induction wire in the induction linear array. The sensing linear array is similar to a net structure, and the existence of particles is more easily captured, so that the micro-charge sensing device can more sensitively detect the particles.

Description

Micro-charge induction device and dust removal system

Technical Field

Embodiments of the present application relate to a micro-charge sensing device (Triboelectric instrument) and related dust removal system, dust removal system monitoring method, dust removal system monitoring apparatus, dust removal system monitoring device, computer readable storage medium and auxiliary components.

Background

The micro-charge sensing device (Triboelectric instrument or Triboelectric sensor) is a device for detecting particles (solid particles or liquid particles) in a gas stream by micro-charge sensing to obtain information such as the flow rate of the particles. Commercially available products of the TRIBO series are representative of the products of the Auburn systems (Auburn systems).

The micro-charge sensing device mainly comprises a Probe and a signal processing system. Wherein the probe is inserted into the target space in use and generates and outputs a current signal as an input signal to the signal processing system when particulate matter in the target space passes through the probe; the signal processing system obtains information representing the flow of particulate matter and the like through processing the input signal. The "target space" herein may be considered a specific airflow path. Whether referred to as a target space or an airflow channel, they are generally understood to be airflow delivery spaces or channels in a housing structure for delivering an airflow.

The probes of the existing micro-charge sensing devices are designed as probes with shorter lengths. This form of probe has a relatively limited range of detection. When there are a plurality of different independent detection areas, a corresponding number of micro-charge sensing devices are required as the number of independent detection areas, and the cost of using these micro-charge sensing devices is very high. Furthermore, when the spatial size of an independent detection zone is particularly large compared to a probe, the probe has a lower detection accuracy for this independent detection zone.

In addition, existing microcharge sensing devices often employ designs in which the probe is integral with the signal processing system, as well as designs in which the probe is separate from the signal processing system but is connected to the signal processing system at a short distance via a dedicated signal transmission line. Therefore, the existing micro-charge induction device often has the difficult problem of limited installation and use due to the influence of engineering sites.

Disclosure of Invention

Embodiments of the present application provide a micro-charge sensing device and related dust removal system, a dust removal system monitoring method, a dust removal system monitoring device, a computer readable storage medium, and auxiliary components, respectively. The detection range of the probe of the micro-charge sensing device can be set to be larger.

According to a first aspect of the present application, a microcharge sensing device is provided. The micro-charge induction device is used on a shell structure for conveying air flow, a target space is arranged in an inner cavity of the shell structure, the target space is provided with different independent detection areas, and the independent detection areas and the external environment of the shell structure are electromagnetically shielded through the shell structure; the probe comprises a probe and a signal processing system, wherein the probe is inserted into the target space when in use and generates and outputs a current signal when particles in the target space pass through the probe, the current signal is used as an input signal of the signal processing system, and the probe comprises an induction part and an output part; the sensing part comprises at least two sensing bodies connected into a current path or separated from each other, the at least two sensing bodies are used for being respectively arranged in different independent detection areas of the target space, and when the particulate matters in any independent detection area pass through the corresponding sensing body, a current signal is generated on the corresponding sensing body; the output part is connected and conducted with at least two inductors which are respectively separated from the induction part at the same time or any one of the at least two inductors which are connected in the induction part to form a current path is also used as an inductor for outputting a current signal generated by each inductor in the induction part; the signal processing system comprises an electric box and a signal processing circuit module, wherein the electric box is arranged on the outer surface of the shell structure when in use, the signal processing circuit module is arranged in the electric box, and a signal input interface of the signal processing circuit module is in signal connection with an output part corresponding to the probe through a micro-current signal transmission structure; the micro-current signal transmission structure comprises a signal transmission line, an insulating sleeve and an electromagnetic shielding pipe which are nested in a layered mode from inside to outside, wherein a first end of the signal transmission line is connected with a second end of a signal input interface and is connected with the output part, a first end of the electromagnetic shielding pipe is connected with a second end of the signal input interface and is inserted into an inner cavity of the shell structure, the first end of the insulating sleeve is positioned in the electromagnetic shielding pipe so as to isolate the signal transmission line from the electromagnetic shielding pipe through the insulating sleeve, and a second end of the insulating sleeve is positioned outside the electromagnetic shielding pipe and is wrapped outside the signal transmission line.

Further, the probe comprises at least two probes, and the signal processing system is a centralized signal processing system with at least two signal processing circuit modules arranged in an electric box; any one of the at least two signal processing circuit modules in the centralized signal processing system is respectively connected with the output part of the corresponding one of the at least two probes through an independent micro-current signal transmission structure.

Further, each of the at least two probes connected to the centralized signal processing system is divergently arranged with the centralized signal processing system as a central area in a direction away from the central area.

Further, the electromagnetic shielding tube comprises a rigid guide shielding tube, one end of the rigid guide shielding tube is inserted into the inner cavity of the shell structure, and the other end of the rigid guide shielding tube extends to the outside of the shell structure; the first end of the insulating sleeve is positioned in the rigid guide shielding pipe so as to isolate the signal transmission line from the electromagnetic shielding pipe through the insulating sleeve, and the second end of the insulating sleeve is positioned outside the rigid guide shielding pipe and wrapped outside the signal transmission line.

Further, the probe is arranged to form a linear structure of a current path and the at least two inductors are formed in a segmented manner along the length direction of the linear structure.

Further, the linear structure is made of a cable; the cable is mounted in tension in the shell structure along its length.

Further, at least one of the end of the wire-like structure belonging to the output section and the signal transmission line connected thereto is a unitary structure belonging to the same preformed wire.

Further, the prefabricated wire rod is subjected to first turning processing to form a first turning section, and a first wire ring is formed between the first turning section and the body of the same prefabricated wire rod; the first turning section is processed through a second turning section, and an included angle between the second turning section and the body is more than 0 degrees and less than 180 degrees; the first loop is used for connecting a traction device, and the second turning section is used as at least one section of the signal transmission line.

Further, the linear structures of the probes connected with the centralized signal processing system in the at least two probes are arranged in parallel and/or positioned on the same straight line; the output portion of each of the at least two probes connected to the centralized signal processing system is proximate to the centralized signal processing system.

Further, any one of the different independent detection areas of the target space is isolated from the rest of the independent detection areas by an isolation structure.

Furthermore, an insulation sealing sleeve sleeved outside the current path is arranged on the isolation structure which needs to penetrate through the current path in the target space.

Further, the insulating sealing sleeve comprises a pair of insulating ceramic bolts and insulating ceramic nuts, axial through holes are formed in the insulating ceramic bolts, the stud portions of the insulating ceramic bolts penetrate through the through holes from one ends of the through holes formed in the corresponding isolation structures and then are connected with the insulating ceramic nuts, insulating sealing gaskets are clamped between the shoulders of the insulating ceramic bolts and one side surface of the isolation structures and between the insulating ceramic nuts and the other side surface of the isolation structures respectively, and the current paths penetrate through the insulating ceramic bolts through the axial through holes.

Further, an electrical box of the signal processing system is mounted on an upper surface of the housing structure.

According to a second aspect of the present application, there is provided a dust removal system comprising: the dust removing unit group comprises at least two dust removing units, each dust removing unit in the at least two dust removing units is provided with an independent air purifying box, and each independent air purifying box forms a target space; the first micro-charge induction device comprises a probe which is inserted into the target space and generates and outputs a current signal when particles in the target space pass through, and a signal processing system which takes the current signal as an input signal; the first micro-charge induction device adopts the micro-charge induction device of the first aspect, wherein the first micro-charge induction device uses the inner cavity of each independent clean air box as the independent detection area.

Further, each independent air purifying box is respectively connected with an exhaust manifold; in addition, it includes a second microcharge sensing device that includes a probe that is inserted into the exhaust manifold's airflow path during use and that generates and outputs a current signal as particulate matter in the airflow path passes the probe, which is used as an input signal to the second microcharge sensing device's signal processing system.

Further, the probe of the second micro-charge sensing device comprises a sensing part and an output part, the sensing part comprises a sensing linear array, the sensing linear array is provided with at least two sensing wires connected together, the sensing linear array is approximately distributed on the same cross section of the airflow channel when in use, and the output part is simultaneously connected and conducted with each sensing wire in the sensing linear array and is used for outputting current signals generated by each sensing wire in the sensing linear array.

Further, each dust removing unit in the at least two dust removing units is a dust removing unit which physically intercepts particulate matters in the air flow through a filter element, and the dust removing units are respectively provided with a back blowing system for carrying out back blowing regeneration on the filter element of the dust removing units; and the back blowing system of any one of the at least two dust removing units and the back blowing systems of the rest of the at least two dust removing units are operated in a staggered mode.

According to a third aspect of the present application, there is provided a dust removing system monitoring method applied to the dust removing system of the second aspect, including: the method comprises the steps of obtaining back-blowing information of at least two dust removing units, and determining operation time of a back-blowing system of each dust removing unit in the at least two dust removing units through the back-blowing information; acquiring output information of a signal processing system of the first micro-charge sensing device and/or a signal processing system of the second micro-charge sensing device, wherein the change of the instant flow of the particles detected by the first micro-charge sensing device and/or the second micro-charge sensing device along with the time can be determined through the output information; and determining a dust removing unit which correspondingly operates the back blowing system when the instant flow of the particles detected by the first micro charge sensing device and/or the second micro charge sensing device is abnormally increased according to the back blowing information and the output information, and then sending a notification pointing to the abnormality of the dust removing unit.

According to a fourth aspect of the present application, there is provided a dust removal system monitoring apparatus, applied to the dust removal system of the second aspect, comprising: the first information acquisition module is used for acquiring back-blowing information of the at least two dust removing units, and determining the operation time of a back-blowing system of each dust removing unit in the at least two dust removing units through the back-blowing information; the second information acquisition module is used for acquiring output information of the signal processing system of the first micro-charge sensing device and/or the signal processing system of the second micro-charge sensing device, and determining the change of the instant flow of the particles detected by the first micro-charge sensing device and/or the second micro-charge sensing device along with the time through the output information; and the abnormality judgment notification module determines a dust removing unit which correspondingly operates the back-blowing system when the instant flow of the particulate matter detected by the first micro-charge sensing device and/or the second micro-charge sensing device is abnormally increased according to the back-blowing information and the output information, and then sends out a notification pointing to the abnormality of the dust removing unit.

According to a fifth aspect of the present application, there is provided a dust removal system monitoring device comprising: at least one processor, at least one memory, and computer program instructions stored in the memory, which when executed by the processor, implement the dust removal system monitoring method of the third aspect described above.

According to a sixth aspect of the present application, there is provided a computer readable storage medium comprising a stored program which, when run, performs the dust removal system monitoring method of the third aspect described above.

According to a seventh aspect of the present application there is provided a microcharge sensing device comprising a probe which, in use, is inserted into an airflow path and which generates and outputs a current signal as particulate matter in the airflow path passes through the probe, the current signal being used as an input signal to a signal processing system, the probe comprising: the induction part comprises an induction linear array, the induction linear array is provided with at least two induction lines connected together, and the induction linear array is approximately distributed on the same cross section of the airflow channel when in use; and the output part is connected and conducted with each induction wire in the induction linear array at the same time and is used for outputting a current signal generated by each induction wire in the induction linear array.

Further, at least two induction lines of all the induction lines of the induction line array are formed by turning and processing on the same prefabricated wire.

Further, the prefabricated wire adopts a cable; the cable is arranged in a zigzag manner on the cross section through traction of a traction structure which is distributed in the airflow channel during use and is respectively connected with the corresponding part of the cable in an insulating manner.

Further, the probe is manufactured by turning processing by using the cable; the output portion includes a first section where a first end of the cable is located.

Further, the first end of the pulling structure is connected to the inner wall of the airflow channel, and the pulling structure is provided with an insulating material so that the cable pulled by the pulling structure is insulated from the inner wall.

Further, the second end of the pulling structure is provided with a cable perforation for the part of the cable, which needs to be subjected to turning processing, to pass through, and the wire loop formed by the turning processing on the cable is mutually sleeved with the corresponding cable perforation.

Further, the pulling structure includes: the first pull ring is used for sleeving the wire ring formed by the turning processing on the cable; the second pull ring is used for sleeving the hanging lugs arranged on the inner wall of the airflow channel; and two ends of the ceramic insulating connecting piece are respectively and movably connected with the first pull ring and the second pull ring.

Further, the cable is routed in a meandering manner over the cross-section by being drawn by the drawing structure which, in use, is distributed along the edge line of the cross-section.

Further, a first section where the first end of the cable is located is formed into a first folded section through first folding processing, and a first wire loop is formed between the first folded section and the body of the cable; the first turning section is processed through a second turning section, and an included angle between the second turning section and the body is more than 0 degrees and less than 180 degrees; the first wire loop is used for being connected with a corresponding traction structure, and the second turning section is used for outputting a current signal generated on the cable.

Further, the signal processing system comprises an electric box and a signal processing circuit module, wherein the electric box is arranged on the outer surface of the shell structure of the airflow channel when in use, the signal processing circuit module is arranged in the electric box, and a signal input interface of the signal processing circuit module is in signal connection with an output part corresponding to the probe through a micro-current signal transmission structure; the micro-current signal transmission structure comprises a signal transmission line, an insulating sleeve and an electromagnetic shielding pipe which are nested in a layered mode from inside to outside, wherein a first end of the signal transmission line is connected with a second end of a signal input interface and is connected with the output part, a first end of the electromagnetic shielding pipe is connected with a second end of the signal input interface, the second end of the signal input interface is inserted into an airflow runner from the shell structure, the first end of the insulating sleeve is positioned in the electromagnetic shielding pipe so as to isolate the signal transmission line from the electromagnetic shielding pipe through the insulating sleeve, a second end of the insulating sleeve is positioned outside the electromagnetic shielding pipe and is wrapped outside the signal transmission line, and the second turning section is used as at least one section of the signal transmission line.

Further, a second section where the second end of the cable is located is processed through a third turning to form a third turning section, and the third turning section is fixedly connected with the body of the cable to form a second wire loop; the second wire loop is used for connecting a corresponding traction structure.

Further, the cable is arranged in a meandering manner on the cross section to form at least three induction lines in different directions which are sequentially connected in series, and the cross section is divided into a plurality of grids by the at least three induction lines in different directions which are sequentially connected in series.

Further, the first induction line and the last induction line of the at least three induction lines with different orientations which are sequentially connected in series are arranged in a crossing way.

Further, the intersection point of the first induction line and the second induction line of the at least three induction lines in different directions which are sequentially connected in series is close to or overlapped with the geometric center of the cross section.

Further, a cross point connecting device is arranged at the cross point of the first induction line and the second induction line of the at least three induction lines in different directions which are sequentially connected in series, and the cross point connecting device is respectively connected with the two induction lines which are mutually crossed.

Further, the cross-point connection device comprises a cross-point connection device body preferably made of an insulating material, wherein the cross-point connection device body is respectively provided with a first perforation and a second perforation which are not communicated with each other, the first perforation is used for passing one induction line, and the second perforation is used for passing the other induction line.

Further, the signal processing system is a signal processing system that obtains an output signal indicative of the flow of particulate matter from the input signal.

Further, the current signal includes at least one of a contact current signal generated on the probe when the particulate matter contacts the probe and an induced current signal generated on the probe when the particulate matter passes alongside the probe.

According to an eighth aspect of the present application, there is provided a dust removal system comprising a dust remover, wherein a micro-charge sensing device is provided on a gas inlet airflow channel to be cleaned and/or a gas outlet airflow channel to be cleaned of the dust remover, the micro-charge sensing device comprising a probe, the probe being inserted into a corresponding airflow channel in use and generating and outputting a current signal when particulate matter in the airflow channel passes the probe, the current signal being used as an input signal to a signal processing system, the micro-charge sensing device employing the micro-charge sensing device of the seventh aspect.

According to a ninth aspect of the present application, there is provided a dust removal system comprising: the dust removing unit group comprises at least two dust removing units, each dust removing unit in the at least two dust removing units is provided with an independent air purifying box, and each independent air purifying box is respectively connected with an exhaust manifold; the micro-charge induction device comprises a probe, wherein the probe is inserted into an airflow channel of the exhaust manifold when in use and generates and outputs a current signal when particulate matters in the airflow channel pass through the probe, and the current signal is used as an input signal of a signal processing system; the micro-charge induction device adopts the micro-charge induction device according to the seventh aspect.

According to a tenth aspect of the present application there is provided a microcharge sensing device comprising a probe which, in use, is inserted into an airflow channel and generates and outputs a current signal when particulate matter in the airflow channel passes the probe, the current signal being used as an input signal to a signal processing system, the probe comprising a cable which is routed in the airflow channel by traction of a traction structure which, in use, is distributed in the airflow channel and is respectively in insulated connection with a respective portion of the cable.

Further, the pulling structure is provided with a spring which is in a stretched state when in use and applies a tensioning force to the cable.

Further, the signal processing system comprises an electric box and a signal processing circuit module, wherein the electric box is arranged on the outer surface of the shell structure of the airflow channel when in use, the signal processing circuit module is arranged in the electric box, and a signal input interface of the signal processing circuit module is in signal connection with an output part corresponding to the probe through a micro-current signal transmission structure; the micro-current signal transmission structure comprises a signal transmission line, an insulating sleeve and an electromagnetic shielding pipe which are nested in a layered mode from inside to outside, wherein a first end of the signal transmission line is connected with a second end of the signal input interface and is connected with the second turning section, the first end of the electromagnetic shielding pipe is connected with the second end of the signal input interface, the second end of the signal input interface is inserted into an airflow channel from the shell structure, the first end of the insulating sleeve is positioned in the electromagnetic shielding pipe, so that the signal transmission line is isolated from the electromagnetic shielding pipe through the insulating sleeve, the second end of the insulating sleeve is positioned outside the electromagnetic shielding pipe and is wrapped outside the signal transmission line, and the second turning section is used as at least one section of the signal transmission line.

Further, the electromagnetic shielding pipe comprises a rigid guiding shielding pipe, one end of the rigid guiding shielding pipe is inserted into the airflow channel in the shell structure, and the other end of the rigid guiding shielding pipe extends to the outside of the shell structure; the first end of the insulating sleeve is positioned in the rigid guide shielding pipe so as to isolate the signal transmission line from the electromagnetic shielding pipe through the insulating sleeve, and the second end of the insulating sleeve is positioned outside the rigid guide shielding pipe and wrapped outside the signal transmission line.

Further, the signal processing system comprises an electric box and a signal processing circuit module, wherein the electric box is arranged on the outer surface of the shell structure of the airflow channel when in use, the signal processing circuit module is arranged in the electric box, and a signal input interface of the signal processing circuit module is in signal connection with an output part corresponding to the probe through a micro-current signal transmission structure; the micro-current signal transmission structure comprises a signal transmission line, an insulating sleeve and an electromagnetic shielding pipe which are nested in a layered mode from inside to outside, wherein a first end of the signal transmission line is connected with a second end of the signal input interface and is connected with the cable, a first end of the electromagnetic shielding pipe is connected with the second end of the signal input interface, the second end of the signal input interface is inserted into an airflow runner from the shell structure, the first end of the insulating sleeve is positioned in the electromagnetic shielding pipe, the signal transmission line is isolated from the electromagnetic shielding pipe through the insulating sleeve, and a second end of the insulating sleeve is positioned outside the electromagnetic shielding pipe and is wrapped outside the signal transmission line.

Further, the cable is arranged in a zigzag manner in the airflow channel by traction of a traction structure which is distributed in the airflow channel during use and is respectively connected with the corresponding part of the cable in an insulation manner.

Further, the probe comprises at least one intersection formed by two sections of cables intersecting each other, and an intersection connecting device is arranged at the intersection and is connected with the two sections of cables intersecting each other.

Further, the cross-point connection device comprises a cross-point connection device body preferably made of an insulating material, wherein the cross-point connection device body is respectively provided with a first perforation and a second perforation which are not communicated with each other, the first perforation is used for the passage of one section of the cable, and the second perforation is used for the passage of the other section of the cable.

According to an eleventh aspect of the present application, there is provided a dust removal system comprising a dust remover, wherein a micro-charge sensing device is provided on a gas inlet airflow channel to be cleaned and/or a gas outlet airflow channel to be cleaned of the dust remover, the micro-charge sensing device comprising a probe, the probe being inserted into a corresponding airflow channel in use and generating and outputting a current signal when particulate matter in the airflow channel passes the probe, the current signal being used as an input signal to a signal processing system, the micro-charge sensing device employing the micro-charge sensing device according to the tenth aspect.

According to a twelfth aspect of the present application, there is provided a microcharge sensing device for use in a housing structure for transporting an air stream, the housing structure having a target space within an interior cavity thereof, the target space having different independent detection regions, any one of the independent detection regions being isolated from the remaining independent detection regions by an isolation structure; the probe is arranged to form a linear structure of a current path and is segmented into at least two inductors along the length direction of the linear structure, and the at least two inductors are used for being respectively arranged in different independent detection areas of the target space; a current signal generated on a corresponding sensor when particulate matter in any one of the independent detection regions passes through the corresponding sensor is passed through the current path and output from a first end of the current path for use as an input signal to the signal processing system; the insulation sealing sleeve which is arranged on the isolation structure and needs to penetrate through the current path in the target space and sleeved outside the current path comprises: the insulating ceramic bolt is provided with an axial through hole, a stud part of the insulating ceramic bolt penetrates through the through hole from one end of the through hole arranged on the corresponding isolation structure and then is connected with the insulating ceramic nut, an insulating sealing gasket is clamped between the shoulder part of the insulating ceramic bolt and one side surface of the isolation structure and between the insulating ceramic nut and the other side surface of the isolation structure respectively, and the current path penetrates through the insulating ceramic bolt through the axial through hole.

Further, the part of the current path, which is sleeved on the through hole, is covered with an insulating sleeve. Furthermore, the insulating sleeve adopts a heat shrinkage tube. Further, sealant is filled between the current path and the through hole. Furthermore, the insulating sealing gasket adopts a polytetrafluoroethylene gasket. Further, the wire-like structure is made using a cable.

According to a thirteenth aspect of the present application, there is provided an insulating gland for use in a microcharge sensing device, the microcharge sensing device being used in a shell structure for transporting an air flow, the shell structure having a target space in an inner cavity thereof, the target space having different independent sensing regions, any one of the independent sensing regions being isolated from the other independent sensing region by an isolating structure, the microcharge sensing device comprising a probe and a signal processing system, the probe being provided as a linear structure constituting a current path and forming at least two sensing bodies in sections along a length direction of the linear structure, the at least two sensing bodies being adapted to be placed in the different independent sensing regions of the target space, respectively, a current signal generated on the corresponding sensing body when particles in any one of the independent sensing regions pass through the current path and are outputted from a first end of the current path to be used as an input signal to the signal processing system, the sealing structure of the target space requiring penetration of the current path being provided with the sealing sleeve placed outside the current path, the sealing structure comprising a pair of insulating bolts, a ceramic bolt being placed on an axial direction, a ceramic bolt being placed between the sealing structure and a ceramic bolt and a shoulder, the ceramic bolt being placed between the insulating nut and a ceramic sealing structure, the current path passes through the insulating ceramic bolt through the axial through hole.

According to a fourteenth aspect of the present application, a dust removing system includes a dust remover, and a micro-charge induction device is disposed on a gas inlet airflow channel to be dedusted and/or a gas outlet airflow channel to be dedusted of the dust remover, where the micro-charge induction device adopts the micro-charge induction device in the twelfth aspect.

The micro-charge sensing device of the first aspect, the seventh aspect, the tenth aspect and the twelfth aspect extends the detection range of the probe by improving the probe.

Examples of the present application are further described below with reference to the accompanying drawings and detailed description. Additional aspects and advantages of embodiments of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the embodiments provided herein.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments and, together with the description, serve to explain the principles of the embodiments. In the drawings:

fig. 1 is a schematic diagram of a control system using a micro-charge sensing device according to an embodiment of the present application.

Fig. 2 is a schematic diagram of a micro-charge sensing device according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a dust removal system according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a dust removal system according to an embodiment of the present application.

Fig. 5 is a cross-sectional view taken along A-A of the dust extraction system of fig. 4.

Fig. 6 is an enlarged view of a portion of the dust removal system of fig. 4 at B.

Fig. 7 is a schematic diagram illustrating a usage state of the micro-charge sensing device according to an embodiment of the present application.

Fig. 8 is a partial enlarged view of fig. 7 at a.

Fig. 9 is a partial enlarged view at B in fig. 7.

Fig. 10 is a partial enlarged view of fig. 7 at C.

Fig. 11 is a schematic structural diagram of an insulation sealing sleeve according to an embodiment of the present application.

Fig. 12 is a schematic diagram of a dust removal system monitoring method according to an embodiment of the present application.

Fig. 13 is a schematic diagram of a dust removal system monitoring method according to an embodiment of the present application.

Fig. 14 is a schematic structural diagram of a dust removal system monitoring device according to an embodiment of the present application.

Detailed Description

The embodiments of the present application will now be described more fully hereinafter with reference to the accompanying drawings. Those of ordinary skill in the art, with the benefit of this disclosure, will be able to implement the embodiments provided herein. Before describing embodiments of the present disclosure with reference to the accompanying drawings, it should be noted in particular that:

The technical solutions and technical features provided in the sections including the following description in the present application may be combined with each other without conflict.

The matter set forth in the following description will generally be presented in the context of a single, but not necessarily all, embodiment of the present disclosure, and will be apparent to one of ordinary skill in the art in view of the disclosed embodiments, without undue burden, and without undue burden, in view of the present disclosure.

The terms "comprising," "including," "having," and any variations thereof, in the present specification and claims, and in the related sections, are intended to cover a non-exclusive inclusion. The terms "first," "second," and the like are used for convenience of distinction, and the meaning may be understood in conjunction with a particular arrangement to distinguish between actually indicated objects.

Fig. 1 is a schematic diagram of a control system using a micro-charge sensing device according to an embodiment of the present application. As shown in fig. 1, the control system using the micro charge sensing device includes a micro charge sensing device 110, a PLC controller 120, an instrument 130, and a host computer 140. Communication can be performed between the micro charge sensing device 110 and the PLC controller 120, between the PLC controller 120 and the instrument 130, and between the PLC controller 120 and the host computer 140.

The instrumentation 130 contains at least one instrument or instrument-like device. The instrumentation 130 may contain at least one control object device of the PLC controller 120 and/or at least one information transmitting device (e.g., a sensor) for transmitting information to the PLC controller 120. The at least one control object device and the at least one information transmitting device may be independent different devices or may be the same device. Preferably, the instrumentation 130 is related to the detection and/or control of at least one object related to the particulate matter condition in the airflow path in which the microcharge sensing device 110 is employed, such as to the detection and/or control of at least one object capable of affecting the particulate matter condition in the airflow path in which the microcharge sensing device 110 is employed.

The PLC controller 120 refers to a programmable controller. The PLC controller 120 may include at least one processor, at least one memory, and associated communication interfaces and input-output ports. The processor is coupled to the memory, the communication interface, and the input/output ports, for example, via various transmission interfaces, transmission lines, or buses. The PLC controller 120 may be connected to the upper computer 140 through a corresponding communication interface, so as to implement communication between the PLC controller 120 and the upper computer 140. The PLC controller 120 may also be connected to the micro-charge sensing device 110 through a corresponding input port, so as to receive signals sent by the micro-charge sensing device 110. The PLC controller 120 may also be connected to corresponding devices in the instrument 130 through corresponding input ports or output ports, to enable communication between the PLC controller 120 and the instrument 130.

The upper computer 140 may include at least one processor, at least one memory, and associated communication interfaces. The processor is coupled to the memory and to the communication interface, for example, via various transmission interfaces, transmission lines, or buses. Optionally, the upper computer 140 may further include an input device and an output device. The output device communicates with the processor of the upper computer 140 and may display information in a variety of ways. For example, the output device may be a liquid crystal display, a light emitting diode display device, a cathode ray tube display device, a projector, or the like. The input device communicates with the processor of the upper computer 140 and may accept user input in a variety of ways. For example, the input device may be a mouse, a keyboard, a touch screen device, or a sensor.

The control system may be configured such that the micro-charge sensing device 110 outputs an analog signal to the PLC controller 120, and the PLC controller 120 converts the analog signal into a digital signal and sends the digital signal to the host computer 140. Meanwhile, since the micro charge sensing device 110 is connected to the PLC controller 120, the PLC controller 120 can control the corresponding devices in the instrument 130 by using the signals transmitted from the micro charge sensing device 110 to the PLC controller 120. In addition, the host computer 140 in the control system can also use the signal detected by the micro charge sensing device 110 and the information sent by the related devices in the instrument 130 to realize new functions, such as related functions, which will be described in the following part of the present specification.

Whether the processor in the PLC controller 120 or the processor in the upper computer 140, or the processor employed in other parts of the control system described above, may include a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a microprocessor, an application specific integrated circuit (Application Special Integrated Circuit, ASIC), a Microcontroller (MCU), a Field Programmable Gate Array (FPGA), or one or more integrated circuits for implementing logic operations.

Whether the processor in the PLC controller 120 or the memory in the upper computer 140, or the memory employed in other parts of the control system described above, may include mass storage for data or instructions. By way of example, and not limitation, the memory may comprise a Hard Disk Drive (HDD), floppy Disk Drive, flash memory, optical Disk, magneto-optical Disk, magnetic tape, or universal serial bus (Universal Serial Bus, USB) Drive, or a combination of two or more of the foregoing. The memory may include removable or non-removable (or fixed) media, where appropriate. The memory may be internal or external to the corresponding processor, where appropriate. In certain cases, the memory is a non-volatile solid state memory. In certain cases, the memory includes Read Only Memory (ROM); the ROM may be mask programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically Erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these, where appropriate.

Fig. 2 is a schematic diagram of a micro-charge sensing device according to an embodiment of the present application, which may be used in the control system shown in fig. 1. As shown in fig. 2, the micro-charge sensing device includes a probe 111 and a signal processing system 112, wherein the probe 111 is inserted into a target space (or a specific airflow path) in use and generates and outputs a current signal when particulate matter in the target space passes through the probe 111, and the current signal is used as an input signal to the signal processing system 112.

The probe 111 may generate a current signal based on the following mechanism: firstly, particles in the flowing process contact the probe 111 to generate a contact current signal on the probe 111; secondly, the particulate matter during flow produces an induced current signal on the probe 111 as it passes alongside the probe 111. In the existing micro-charge sensing devices available in the market, the signal processing system 112 of some micro-charge sensing devices cannot process the induced current signal effectively, so that the micro-charge sensing devices actually use the current signal generated by the first mechanism, but the micro-charge sensing devices are often not sensitive enough and have low measurement accuracy. The signal processing system 112, which also has a micro-charge sensing device, is capable of efficiently processing the sensed current signal, such as a micro-charge sensing device of the TRIBO series of Auburn systems, inc., where the micro-charge sensing device may utilize both the first and second generated current signals, or alternatively may utilize only the second generated current signal. The micro-charge sensing device like the micro-charge sensing device of the TRIBO series has higher measurement accuracy. In order to use only the current signal generated by the second mechanism, the surface of the probe 111 may be covered with a layer of insulating material, and at this time, even if the particles in the flowing process contact the probe 111, no charge migration is generated between the particles in contact with each other and the probe, so that no contact current signal is generated on the probe 111. One of the benefits of using only the current signal generated by mechanism two is: covering the surface of the probe 111 with a layer of insulating material serves to protect the probe and to prevent the probe 111 from being electrically connected to substances adhering to the probe 111 (e.g., conductive particles or conductive liquid deposited in the air flow) or other causes of short-circuiting between the probe 111 and the housing member constituting the air flow path during use.

In order to improve the accuracy of the probe 111 in detecting particulate matter in the target space, electromagnetic shielding between the target space and the environment outside the target space is generally required to prevent the flow of particulate matter in the environment outside the target space from interfering with the detection. Generally, a case structure of the target space may be made of a metal material such as a steel plate, so that electromagnetic shielding between the target space and the outside environment of the target space is achieved by the case structure. Of course, other shielding structures or materials may be provided between the target space and the environment external to the target space to effect electromagnetic shielding.

Since the current signal generated and output by the probe 111 is very weak, to enable this current signal to be processed by a subsequent device (e.g., the PLC controller 120) while ensuring that this current signal is subject to as low interference as possible and/or other adverse effects that result in signal distortion, the current signal generated and output by the probe 111 needs to be processed by the signal processing system 112 to output an accurate signal that can be processed by the subsequent device (e.g., the PLC controller 120). In US5448172 a signal processing system is provided which comprises a transducer (transducers) which essentially acts to amplify the current signal generated and output by the probe 111. Typically, the signal processing system 112 is configured to output standard industrial signals such as signals of 4-20 milliamp current or 1-5 volts. The output signal of the signal processing system 112 may be generally used to characterize the flow of particulate matter detected by the microcharge sensing device.

Fig. 3 is a schematic structural diagram of a dust removal system according to an embodiment of the present application, where the dust removal system may use the control system shown in fig. 1. As shown in fig. 3, the dust removing system includes a dust removing unit set 200, where the dust removing unit set 200 includes at least two dust removing units 210, each dust removing unit 210 in the at least two dust removing units 210 is provided with an independent air purifying box 211, and each independent air purifying box 211 forms a target space.

Each dust removing unit 210 of the at least two dust removing units 210 is typically a dust removing unit that physically intercepts particulate matters in the air flow through the filter element 212, at this time, the dust removing units 210 may also be respectively provided with a blowback system for blowback regeneration of the filter element 212, and the blowback system of any dust removing unit 210 of the at least two dust removing units 210 may typically be operated in a time-staggered manner with the blowback systems of the other dust removing units 210 of the at least two dust removing units 210, so that when the blowback system of one dust removing unit 210 is operating, the other dust removing units 210 may also operate normally (dust removing).

The filter element 212 may be a cloth bag, a filter cartridge, or the like, made of various permeable materials (e.g., expanded polytetrafluoroethylene, porous ceramic). The blowback regeneration is a conventional means for recovering the permeability of the filter element 212 by the dust removal unit, and is widely applied to a bag-type dust remover, a cartridge-type dust remover and other filters for physically intercepting particulate matters in air flow through the filter element.

When any one of the filter elements 212 is broken, blowback regeneration of the filter element tends to cause the broken portion of the filter element 212 to be exposed, thereby causing a sudden increase in the concentration of particulate matter in the purge tank 211 of the dust removal unit 210. In addition, breakage of the filter element 212 also easily causes deposition of particulate matter in the clean gas tank 211 corresponding to the dust removal unit 210, and also causes an increase in the concentration of particulate matter in the clean gas tank 211 at the time of back-blowing regeneration. Since the blowback system of any one of the at least two dust removing units 210 and the blowback systems of the remaining dust removing units 210 of the at least two dust removing units 210 are operated at a time, if a sudden increase in the concentration of the particulate matter in the corresponding independent purge bin 211 is detected in the corresponding time of the operation of the blowback system of a certain dust removing unit 210, the dust removing unit 210 in which breakage of the filter element may occur can be located.

In an alternative embodiment of the foregoing dust removing system, each dust removing unit 210 of the at least two dust removing units 210 of the dust removing unit set 200 is a bag-type dust remover. In each bag-type dust collector, a filter element 212 adopts a cloth bag, a plurality of cloth bags are suspended below a pore plate 214 in the bag-type dust collector, an independent air purifying box 211 is arranged above the pore plate 214, and an original air box is arranged below the pore plate 214. The original air tanks of the bag-type dust collectors are respectively connected with the air inlet pipe 220 through corresponding air inlet valves 221, and the independent air purifying tanks 211 of the bag-type dust collectors are respectively connected with the air outlet pipe 230 through corresponding air outlet valves 231. When the intake pipe 220 converges to the same pipe, the same pipe may be referred to as an intake manifold; when exhaust pipes 230 converge to the same pipe, the same pipe may be referred to as an exhaust manifold. The back blowing system of each cloth bag dust collector comprises blowing pipes 213, pulse valves, air bags and a control part, wherein each nozzle arranged at intervals on each blowing pipe 213 corresponds to the upper end opening of each cloth bag in a row of cloth bags respectively, each blowing pipe 213 is connected to the corresponding air bag through one pulse valve, and the control part is mainly used for controlling the opening and closing of the pulse valve.

When the dust removing unit set 200 is operated, the gas (raw gas) to be removed enters the raw gas box from the gas inlet pipe 220 and the gas inlet valve 221, is filtered by the cloth bag in the raw gas box, and the filtered gas (purified gas) enters the corresponding independent gas purifying box 211, and is output through the gas outlet valve 231 and the gas outlet pipe 230. The back blowing regeneration process of each bag-type dust remover comprises the following steps: when any one of the cloth bag dust collectors needs to be subjected to back blowing regeneration, the exhaust valve 231 corresponding to the cloth bag dust collector needing to be subjected to back blowing regeneration is firstly closed, then the control part controls the pulse valves of the cloth bag dust collectors needing to be subjected to back blowing regeneration to be sequentially opened, when one pulse valve is opened, compressed gas in the corresponding gas bag is rapidly sprayed out from each nozzle of the corresponding spraying pipe 213 and enters the corresponding row of cloth bags to realize back blowing regeneration of the cloth bag, and at the moment, the back blowing regeneration of one cloth bag dust collector is completed. When the back blowing regeneration of a bag-type dust collector is completed, the exhaust valve 231 of the bag-type dust collector is opened, and then the bag-type dust collector can start working (filtering) again. And carrying out back-blowing regeneration of the other bag-type dust remover by repeating the mode until all the bag-type dust removers finish the back-blowing regeneration. Therefore, the back blowing system of any one of the bag-type dust collectors and the back blowing system of the Yu Budai dust collector are operated in a staggered mode.

As described above, when any one of the bag-type dust collectors needs to perform back-blowing regeneration, the exhaust valve 231 corresponding to the bag-type dust collector that needs to perform back-blowing regeneration is first closed, and then back-blowing is started, which is generally referred to as "off-line back-blowing". Off-line blowback is only one blowback mode currently known, and another blowback mode currently known is "on-line blowback". During online back blowing, the exhaust valve 231 corresponding to the bag-type dust collector for back blowing regeneration is in an open state. The dust removal system is not limited to the use of "off-line blowback".

It has been pointed out in the above description that when any one of the bags is broken, the back-blowing regeneration of that bag tends to expose the broken portion of that bag, thereby causing a sudden increase in the concentration of particulate matter in the purge bin 211 of the bag house dust collector. In addition, the breakage of the cloth bag also easily causes the deposition of particles in the clean gas box 211 of the cloth bag dust collector, and the concentration of the particles is also increased during back blowing regeneration. Therefore, the dust removing system can use the control system so as to find out the cloth bag dust remover possibly with cloth bag damage in the dust removing system in time, and even find out which cloth bags in the cloth bag dust remover possibly with cloth bag damage are possibly damaged. Thus, the above-described control system needs to be applied to the dust removal system.

As a specific embodiment of the above-mentioned control system applied to the dust removing system, the PLC controller 120 of the above-mentioned control system may control the blowback system of the at least two dust removing units 210 in the dust removing system, and at this time, each pulse valve is connected as a device in the instrument 130 to a corresponding output port of the PLC controller 120, so that the opening and closing of the pulse valves are controlled by the PLC controller 120. Each exhaust valve 231 and other possible devices may be connected to a corresponding output port of the PLC controller 120 as a device in the instrument 130. While the micro-charge sensing device 110 of the control system may be disposed in each of the at least two dust removal units 210 in a separate purge bin 211 or in the exhaust manifold. When the micro-charge induction device 110 of the control system is disposed in each independent purge bin 211 in the at least two dust removing units 210, detecting a change in concentration of particulate matter in each independent purge bin 211 by the micro-charge induction device 110; when the control system micro-charge sensing device 110 is deployed in the exhaust manifold, the change in particulate concentration in the exhaust manifold is detected by the micro-charge sensing device 110. In this way, the PLC controller 120 can obtain the blowback information of the at least two dust removing units 210, and also can obtain the output information of the signal processing system 112 of the micro charge sensing device 110, and further can determine the operation time of the blowback system of each dust removing unit in the at least two dust removing units through the blowback information, and can determine the change of the detected instantaneous flow of the particulate matter with time (here, the concept that the concentration of the particulate matter is related to the flow of the particulate matter can reflect the quantity of the particulate matter) through the output information, and finally determine the dust removing unit which correspondingly operates the blowback system when the detected instantaneous flow of the particulate matter is abnormally increased according to the blowback information and the output information, so as to find the dust removing unit with possibly damaged filter element.

For example, in the case of adopting the above-mentioned offline blowback scheme, when the micro-charge induction device 110 of the control system is disposed in each of the independent purge tanks 211 of the at least two dust removal units 210, when the information that the exhaust valve 231 corresponding to one of the at least two dust removal units 210 is opened after the blowback of the dust removal unit 210 is completed is obtained, if the micro-charge induction device 110 disposed in the independent purge tank 211 of the dust removal unit 210 detects that the instantaneous flow rate of the particulate matter is abnormally increased, it may be considered that there is a breakage of the filter element in the dust removal unit 210. For another example, in the case of adopting the above-mentioned offline blowback scheme, when the micro-charge induction device 110 of the control system is deployed in the exhaust manifold, when the information that the exhaust valve 231 corresponding to one of the at least two dust removal units 210 is opened after the blowback of the dust removal unit 210 is completed is obtained, if the micro-charge induction device 110 deployed in the exhaust manifold immediately monitors that the instantaneous flow of the particulate matter is abnormally increased, it may be considered that there is a possibility that the filter element is damaged in the dust removal unit 210.

However, the probes of the existing micro-charge induction devices are designed as probes with short lengths, the detection range of the probes is limited, if the micro-charge induction devices 110 using the probes are deployed in each independent air purifying box 211, at least one micro-charge induction device 110 is required for each independent air purifying box 211, and the cost for using the micro-charge induction devices is very high; if the micro-charge sensing device 110 using this type of probe is deployed in the exhaust manifold, the probe will have a lower detection accuracy for the exhaust manifold because the detection range of the probe is inherently limited, plus the cross-sectional area of the channels of the exhaust manifold is relatively large.

In order to increase the detection range of the probe of the micro-charge sensing device, the following several improvements of the micro-charge sensing device are provided in the embodiments of the present application. These improvements can be applied either alone or in combination.

Before explaining the improvements of the micro-charge sensing device provided in the embodiments of the present application, the related terms that may be referred to will be briefly described below.

1. Target space: i.e. a specific airflow channel, which can be detected by the probe of the microcharge sensing device. Whether referred to as a target space or an airflow channel, they are generally understood to be airflow delivery spaces or channels in a housing structure for delivering an airflow.

2. Independent detection area: a target space having independent particulate flow or concentration characteristics. Typically isolated from other independent detection zones by isolation structures.

3. Prefabricating wires: the prefabricated electrically conductive thread-like material is preferably a cable. The cable herein may be constituted by at least one wire or by more than two wires.

Scheme one

First, a dust removing system applied to the micro-charge induction device of the first aspect is described. It should be noted that the following dust removal system is merely for illustrating the use environment of the micro-charge sensing device of the first embodiment, and it is obvious that the micro-charge sensing device of the first embodiment can be applied to other systems.

Fig. 4 is a schematic structural diagram of a dust removal system according to an embodiment of the present application. Fig. 5 is a cross-sectional view taken along A-A of the dust extraction system of fig. 4. Fig. 6 is an enlarged view of a portion of the dust removal system of fig. 4 at B. As shown in fig. 1 to 6, the dust removing system includes a dust removing unit group 200, where the dust removing unit group 200 includes a first dust removing unit and a second dust removing unit disposed opposite to the first dust removing unit, the first dust removing unit and the second dust removing unit are both provided with a plurality of dust removing units 210, an air inlet pipe 220 and an air outlet pipe 230 are disposed between the first dust removing unit and the second dust removing unit, the air inlet pipe 220 is used as an air inlet manifold, and the air outlet pipe 230 is used as an air outlet manifold. Specifically, a partition 240 is disposed in the long and narrow case constructed between the first dust removing unit and the second dust removing unit, so that the long and narrow case is divided into an upper and a lower two-layer chambers, wherein the upper chamber is divided into an upper and a lower two-layer chamber by another partition 250, the upper chamber is used as a channel between the independent air purifying case 211 connected to the top of each dust removing unit 210 and the exhaust pipe 230, and the lower chamber is used as the exhaust pipe 230; the lower cavity of the upper and lower cavities serves as an air inlet pipe 220. The partition 240 is generally inclined so that the cross-sectional area of the inlet pipe 220 is gradually reduced in the flow direction of the (raw gas) flow in the inlet pipe 220 and the cross-sectional area of the outlet pipe 230 is gradually increased in the flow direction of the (net gas) flow in the outlet pipe 230.

Each dust removal unit 210 is specifically a bag-type dust collector. In each bag-type dust collector, the filter element 212 adopts a cloth bag (the cloth bag is hidden in fig. 5), a plurality of cloth bags are hung below an orifice plate 214 in the bag-type dust collector, and an independent air purifying box 211 is arranged above the orifice plate 214. The top of the independent air purifying box 211 of each bag-type dust collector is provided with a cover plate 217 which is detachably arranged, and the specific structure of the independent air purifying box 211 in the bag-type dust collector can be seen after the cover plate 217 is uncovered. Below the orifice plate 214 is an original gas tank, and the original gas tanks of the bag-type dust collectors are respectively connected with the air inlet pipe 220 through corresponding air inlet valves 221, and as can be seen from fig. 5, the air inlet valves 221 are located on the air inlet pipeline below the air inlet pipe 220. The independent air purifying boxes 211 of each bag-type dust remover are respectively connected with the exhaust pipe 230 through corresponding exhaust valves 231. Here, the exhaust valve 231 is specifically a poppet valve, the valve plate of the poppet valve is used to cooperate with the opening at the top of the exhaust pipe 230, when the valve plate of the poppet valve is lifted by the lifting mechanism comprising the cylinder and the telescopic rod in the poppet valve, the corresponding opening at the top of the exhaust pipe 230 is no longer closed by the valve plate, and at this time, the air flow in the corresponding air purifying box 211 will enter the exhaust pipe 230 from the channel above the partition plate 250 (i.e. the upper cavity) through the opened opening; when the valve plate of the poppet valve falls, the corresponding opening at the top of the exhaust pipe 230 is closed by the valve plate. To facilitate servicing of the poppet valve, the cylinder of the poppet valve may typically be positioned on a top surface platform of the dust removal system. The dashed arrow in fig. 5 shows the flow path from the inlet pipe 220 into the bag house after flowing out of the clean air box 211 of the bag house to the outlet pipe 230.

In addition, as shown in fig. 4 to 6, the blowback system of each bag-type dust collector includes a blowing pipe 213, a pulse valve 216, an air bag 215, and a control part. The nozzles of each blowing pipe 213 of each bag-type dust collector are respectively corresponding to the openings at the upper ends of the bags in a row of bags in the bag-type dust collector, and each blowing pipe 213 is connected to an air bag 215 arranged at the top of the bag-type dust collector through a pulse valve 216. The control unit is mainly used for controlling the opening and closing of the pulse valve 216 and the poppet valve.

The micro-charge sensing device of the first embodiment includes a probe 111 and a signal processing system 112. The probe 111 and the signal processing system 112 of the micro-charge sensing device according to the first embodiment are described below. For convenience of description, the micro-charge sensing device of the first embodiment is hereinafter referred to as a first micro-charge sensing device, and the first micro-charge sensing device is denoted by 110A in the related drawings.

Probe of first micro-charge induction device

Fig. 7 is a schematic diagram illustrating a usage state of the micro-charge sensing device according to an embodiment of the present application. Fig. 8 is a partial enlarged view of fig. 7 at a. As shown in fig. 4-8, the probe 111 of the first microcharge sensing device 110A includes a sensing section and an output section. The sensing part comprises at least two sensing bodies connected into a current path or separated from each other, the at least two sensing bodies are used for being respectively arranged in the corresponding independent air purifying boxes 211 in the dust removing system, and when particles in the air flow of any independent air purifying box 211 pass through the corresponding sensing bodies, current signals are generated on the corresponding sensing bodies. The output part is connected and conducted with at least two inductors separated from each other in the induction part or any one of the at least two inductors connected in the induction part to form a current path is also used as an inductor, and is used for outputting current signals generated by the inductors in the induction part to the signal processing system 112.

Since the probe 111 can be divided into different sensing bodies and simultaneously distributed in different independent detection areas, the different sensing bodies can output current signals to the signal processing system 112 through the same output part when in use, so that the micro-charge sensing device in the first scheme can detect different independent detection areas, thereby reducing the use quantity of the micro-charge sensing device and lowering the use cost.

It should be noted here that, regarding the probe 111 of the first micro-charge sensing device 110A, reference may be made to what the applicant of the present application provides in the patent document with publication number CN 112362118A; alternatively, the contents of this patent document may be incorporated into the present application.

As shown in fig. 4-8, an alternative embodiment of the first microcharge sensing device 110A is that the probe 111 is configured as a wire-like structure that forms a current path and the at least two sensing bodies are formed in sections along the length of the wire-like structure.

Typically, the wirelike structure may be made using a cable 1111. In this way, the cable 1111 of the probe 111 constituting the first micro-charge sensing device 110A will pass through a different independent purge gas box 211.

The dedusting system is not shown in fig. 7, but it is understood that in the case that the cable 1111 of the first micro-charge sensing device 110A passes through different independent air purifying boxes 211, the one section of cable in each independent air purifying box 211 is an inductor.

Signal processing system of first micro-charge induction device

As shown in fig. 4 to 8, the signal processing system 112 of the first micro-charge sensing device 110A comprises an electrical box 1121 and a signal processing circuit module (typically manufactured as an integrated circuit board), wherein the electrical box 1121 is mounted on the outer surface of the housing structure of the dust removal system in use, and the signal processing circuit module is mounted in the electrical box 1121 and its signal input interface is in signal connection with the output part of the corresponding probe 111 through a micro-current signal transmission structure.

The micro-current signal transmission structure comprises a signal transmission line 1124, an insulating sleeve 1123 and an electromagnetic shielding tube 1122, wherein the signal transmission line 1124 is layered and nested from inside to outside, a first end of the signal transmission line 1124 is connected with the signal input interface, a second end of the signal transmission line 1124 is connected with the output part, a first end of the electromagnetic shielding tube 1122 is connected with the signal input interface, a second end of the signal transmission line 1122 is inserted into the inner cavity of the shell structure, the first end of the insulating sleeve 1123 is positioned in the electromagnetic shielding tube 1122 so as to isolate the signal transmission line 1124 from the electromagnetic shielding tube 1122 through the insulating sleeve 1123, and a second end of the insulating sleeve 1123 is positioned outside the electromagnetic shielding tube 1122 and wrapped outside the signal transmission line 1124.

Here, the shell structure may specifically be a shell structure of a single air purifying box 211 in the dust removing system. The electrical box 1121 of the signal processing system 112 of the first micro-charge sensing device 110A is preferably mounted on the upper surface of the case structure, thereby facilitating operations related to the mounting of the electrical box 1121, etc.

In general, the shell structure of the independent purge tank 211 is made of steel plate, and at this time, the independent purge tank 211 and the external environment thereof can be electromagnetically shielded by the shell structure.

The signal processing system 112 of the first micro-charge sensing device 110A has the following advantages: first, the signal processing system 112 can implement engineering installation conveniently and quickly. An operator can firstly install the electric box 1121 on the outer surface of the shell structure of the dust removal system on the engineering site, install the signal processing circuit module in the electric box 1121, then sleeve the insulating sleeve 1123 outside the signal transmission line 1124, penetrate the insulating sleeve 1123 sleeved with the signal transmission line 1124 into the electromagnetic shielding tube 1122, and finally connect the sleeved pipelines with the signal input interface of the signal processing circuit module, thereby completing the installation of the signal processing system, and being very convenient and fast. Second, the position of the electrical box 1121 and the length of the associated piping can be flexibly adjusted according to the site situation. Because the signal processing system 112 can adopt the engineering installation mode, the position of the electric box 1121 and the length of the related pipeline can be flexibly adjusted according to the field condition, and the flexibility of the installation and the use of the signal processing system is greatly improved. Again, interference of the flow of particles in the environment external to the microcurrent signal transmission structure with the current signal in signal transmission line 1124 can be prevented. Electromagnetic shield 1122 can act as an electromagnetic shield to prevent interference of particle flow in the environment external to the microcurrent signal transmission structure with the current signal in signal transmission line 1124. At the same time, the first end of the insulating sleeve 1123 is positioned within the electromagnetic shield 1122 such that the signal transmission line 1124 is isolated from the electromagnetic shield 1122 by the insulating sleeve 1123, thus avoiding a short circuit between the signal transmission line 1124 and the electromagnetic shield 1122. Finally, since the second end of the insulating sleeve 1123 is located outside the electromagnetic shielding tube 1122 and is wrapped around the signal transmission line 1124, it is possible to prevent the signal transmission line 1124 from being in contact with the electromagnetic shielding tube 1122 due to shaking of the signal transmission line 1124 or condensation of air flow, etc.

In an alternative embodiment, the electromagnetic shield 1122 comprises a rigid guide shield 1122a, one end of the rigid guide shield 1122a is inserted into the interior cavity of the housing structure and the other end extends outside the housing structure, the first end of the insulating sleeve 1123 is positioned within the rigid guide shield 1122a to isolate the signal transmission line 1124 from the electromagnetic shield 1122 by the insulating sleeve 1123, and the second end of the insulating sleeve 1123 is positioned outside the rigid guide shield and wrapped around the signal transmission line 1124. The rigid guide shield tube 1122a may be made of a steel tube. In addition to functioning as an electromagnetic shield, rigid pilot shield 1122a also functions as a guide and positioning for a pipeline penetrating into rigid pilot shield 1122 a.

In addition, the electromagnetic shield 1122 may also include a flexible shield 1122b, with the rigid guide shield 1122a being connected to the signal input interface through the flexible shield 1122 b. By using the rigid guide shield 1122a in combination with the flexible shield 1122b, the rigid guide shield 1122a can be used to position a pipeline of interest and facilitate installation of the electromagnetic shield 1122.

Integral structure of first micro-charge induction device

In the case that the probe 111 of the first micro-charge sensing device 110A and the signal processing system 112 adopt the above-mentioned scheme, the first micro-charge sensing device 110A may further adopt the following improvement scheme.

As shown in fig. 4-8, the first micro-charge sensing device 110A includes at least two probes 111, and the signal processing system 112 is a centralized signal processing system with at least two signal processing circuit modules installed in the electrical box 1121; any one of the at least two signal processing circuit modules in the centralized signal processing system is respectively connected with the output part of the corresponding one of the at least two probes 111 through an independent micro-current signal transmission structure.

In an alternative embodiment, each of the at least two probes 111 connected to the centralized signal processing system is divergently arranged with the centralized signal processing system as a central region in a direction away from the central region.

For example, when the probes 111 are arranged in a linear structure that constitutes a current path and the at least two sensing bodies are formed in sections along the length direction of the linear structure, the linear structures of the probes 111 connected to the centralized signal processing system among the at least two probes 111 are arranged in parallel and/or on the same line; the output portion of each of the at least two probes 111 connected to the centralized signal processing system is proximate to the centralized signal processing system.

In the example shown in fig. 7, the first microcharge sensing device 110A includes four of the probes 111, namely, probe (1), probe (2), probe (3), and probe (4). Wherein the linear structure of the probe (1) and the linear structure of the probe (2) are positioned on the same straight line; the linear structure of the probe (3) and the linear structure of the probe (4) are positioned on the same straight line; the line in which the linear structure of the probe (1) and the linear structure of the probe (2) are located is parallel to the line in which the linear structure of the probe (3) and the linear structure of the probe (4) are located. The linear structure of the probe (1) penetrates into each independent air purifying box 211 of the front part dust removing unit in the first dust removing unit from one direction, and the linear structure of the probe (2) penetrates into each independent air purifying box 211 of the rear part dust removing unit in the first dust removing unit from the opposite direction. Similarly, the linear structure of the probe (3) penetrates into each independent air purifying box 211 of the front part dust removing unit in the second dust removing unit from one direction, and the linear structure of the probe (4) penetrates into each independent air purifying box 211 of the rear part dust removing unit in the second dust removing unit from the opposite direction. The probe (1), the probe (2), the probe (3) and the probe (4) are respectively connected with a centralized signal processing system through an independent micro-current signal transmission structure, and the centralized signal processing system is arranged at a position which is close to the output part of the probe (1), the output part of the probe (2), the output part of the probe (3) and the output part of the probe (4) at the same time.

As can be seen from the above examples, the probes 111 connected to the centralized signal processing system among the at least two probes 111 are divergently arranged in a direction away from the central area with the centralized signal processing system as the central area, which is in fact helpful for shortening the length of each probe, and making the distance of the current signal on each probe transmitted to the centralized signal processing system close, so as to facilitate the manufacture of the probes and improve the accuracy of the first micro charge sensing device 110A.

Mounting of a first microcharge sensing device

The process of mounting the first micro-charge sensing device 110A and the first micro-charge sensing device 110A after mounting will be described below with the first micro-charge sensing device 110A of the probe 111 manufactured using the cable 1111.

The installation process of one probe is as follows: the inner wall of the independent purge bin where the two ends of the probe 111 are required to be respectively located is designed in advance, and a pulling device 113 is installed, wherein the pulling device 113 is used for pulling the cable 1111 so that the cable 1111 can be installed in the shell structure. The first section where the first end of one cable 1111 is located is then formed into a first folded section 1112 through a first folding process, and a first wire loop 1113 is formed between the first folded section 1112 and the body of the cable 1111, where the first wire loop 1113 is used to connect the corresponding pulling device 113 (the first folded section 1112 may be passed through a hole on the corresponding pulling device 113 so as to connect the first wire loop 1113 with the corresponding pulling device 113). The first turning section 1112 is further processed to form a second turning section 1114 by a second turning process, an included angle between the second turning section 1114 and the body is greater than 0 ° and less than 180 °, at this time, the second turning section 1114 is equivalent to branching from the body of the cable 1111, so that the second turning section 1114 can just be used as at least one section of the signal transmission line 1124 to realize output of a current signal. For the connection between the second turning section 1114 and the signal processing system 112, reference may be made to the content of the aforementioned "signal processing system of the first micro-charge sensing device" section, which is not described herein. Thereafter, the second section of the cable 1111, where the second end is located, is processed through a third turning process to form a third turning section, where the third turning section is consolidated with the body of the cable 1111 and forms a second wire loop, and the second wire loop is used to connect the corresponding pulling device (the third turning section may be passed through a hole on the corresponding pulling device so as to connect the second wire loop with the corresponding pulling device). In this way, the cable 1111 can be installed in the shell structure by means of the pulling means 113 at the first end of the cable 1111 for connecting the first wire loop 1113 and the pulling means at the second end of the cable 1111 for connecting the second wire loop. Therefore, the installation process is not complex in construction, and can be simple, convenient and quick.

In an alternative embodiment, at least one of the pulling means 113 at the first end of the cable 1111 for connecting the first wire loop 1113 and the pulling means at the second end of the cable 1111 for connecting the second wire loop is provided with a spring 113a which is in a pulled-up state during operation, so that the cable 1111 can be mounted in the shell structure in tension in its length direction by the spring, and shaking during use of the cable is reduced.

In the case that any one of the independent air purifying boxes 211 through which the cable 1111 of the probe 111 passes is isolated from the rest of the independent air purifying boxes 211 by an isolating structure 218 (e.g., a steel plate), it is generally necessary to provide an insulating sealing sleeve 114 on the isolating structure 218 and sleeved on the outer side of the cable 1111, so as to avoid a short circuit caused by the contact between the cable 1111 and the isolating structure.

Fig. 11 is a schematic structural diagram of an insulation sealing sleeve according to an embodiment of the present application. As shown in fig. 11, the insulation sealing sleeve 114 of this embodiment includes a pair of insulation ceramic bolts 1141 and insulation ceramic nuts 1142, wherein an axial through hole is provided on the insulation ceramic bolts 1141, a stud portion of the insulation ceramic bolts 1141 penetrates through the through hole 2181 from one end of the through hole 2181 provided on the corresponding isolation structure 218 and then is connected to the insulation ceramic nuts 1142, and insulation sealing gaskets 1143 are respectively clamped between a shoulder portion of the insulation ceramic bolts 1141 and one side surface of the isolation structure 218 and between the insulation ceramic nuts 1142 and the other side surface of the isolation structure 218, and the cable 1111 axially penetrates through the insulation ceramic bolts 1141 through the axial through hole.

The portion of the cable 1111 that is sleeved in the through hole 2181 may be sleeved with an insulating sleeve 1144; the insulating sleeve can adopt a heat shrinkage tube. A sealant may be filled between the cable 1111 and the through hole 2181. The insulating sealing gasket 1143 may be a polytetrafluoroethylene gasket.

The insulation sealing sleeve 114 has a simple structure and convenient installation, can prevent the cable 1111 from contacting the isolation structure 218, and can effectively seal between the insulation sealing sleeve 114 and the isolation structure 218 and between the insulation sealing sleeve 114 and the cable 1111.

Scheme II

Here, the dust removing system applied by the micro-charge induction device of the second aspect is the same as the dust removing system applied by the micro-charge induction device of the first aspect, so the dust removing system applied by the micro-charge induction device of the second aspect is not described again. It should be noted that the dust removal system is only for illustrating the use environment of the micro-charge sensing device of the second aspect, and obviously, the micro-charge sensing device of the second aspect can be applied to other systems.

The micro-charge sensing device of the second embodiment includes a probe 111 and a signal processing system 112. The probe 111 and the signal processing system 112 of the micro-charge sensing device of the second embodiment are described below. For convenience of description, the second micro-charge sensing device of the second embodiment is hereinafter referred to as a second micro-charge sensing device, and the second micro-charge sensing device is denoted by 110B in the related drawings.

Probe of second micro-charge induction device

Fig. 7 is a schematic diagram illustrating a usage state of the micro-charge sensing device according to an embodiment of the present application. Fig. 9 is a partial enlarged view at B in fig. 7. Fig. 10 is a partial enlarged view of fig. 7 at C. As shown in fig. 1-7, 9-10, the probe 111 of the second microcharge sensing device 110B includes a sensing section and an output section. Wherein the sensing portion comprises a sensing linear array having at least two sensing wires 1111a connected together, the sensing linear array being distributed substantially over the same cross section in the exhaust pipe 230 in use. The output part is connected and conducted with each induction wire in the induction linear array at the same time and is used for outputting current signals generated by each induction wire in the induction linear array.

Since the sensing portion comprises a sensing linear array having at least two sensing lines 1111a connected together, the sensing linear array is substantially distributed over the same cross section in the exhaust pipe 230 in use, and thus the sensing linear array resembles a net structure, the sensing linear array is more likely to capture the presence of particulate matter when the particulate matter in the air flow in the exhaust pipe 230 passes through the sensing linear array, thereby making the micro-charge sensing device more sensitive to detect the particulate matter.

In an alternative embodiment, at least two induction lines 1111a of all the induction lines 1111a of the induction line array are formed by turning on the same prefabricated wire. Wherein the preformed wire may employ a cable 1111. The cable 1111 may be arranged in a meandering manner over the cross section by traction of a traction structure 115 which is, in use, distributed in the exhaust pipe 230 and is connected in an insulated manner to the respective parts of the cable 1111. The cable 1111 can also be routed in a meandering manner over the cross-section by being pulled by the pulling structure 115 which, in use, is distributed along the edge line of the cross-section.

In one embodiment, the probe 111 is fabricated by a turning process using the cable 1111; the output portion includes a first section where a first end of the cable is located.

In one embodiment, the first end of the pulling structure 115 is attached to the inner wall of the exhaust pipe 230, and the pulling structure 115 has an insulating material thereon to insulate the cable 1111 pulled by the pulling structure 115 from the inner wall.

In a specific embodiment, the second end of the pulling structure 115 is provided with a cable hole for passing through a portion of the cable 1111 where the turning process is required, and the wire loop 1115 formed by the turning process on the cable 1111 is sleeved with the corresponding cable hole.

In a specific embodiment, as shown in fig. 9, the pulling structure 115 includes a first pull ring 1151, a second pull ring 1153, and a ceramic insulation connecting member 1152, where the first pull ring 1151 is used to be sleeved with a wire loop 1115 formed by the turning process on the cable 1111, the second pull ring 1153 is used to be sleeved with a hanging lug 1154 installed on an inner wall of the exhaust pipe 230, and two ends of the ceramic insulation connecting member 1152 are respectively movably connected with the first pull ring 1151 and the second pull ring 1153.

In a specific embodiment, the first section where the first end of the cable 1111 is located is formed into a first folded section by a first folding process, and a first wire loop is formed between the first folded section and the body of the cable 1111; the first turning section is processed through a second turning section, and an included angle between the second turning section and the body is more than 0 degrees and less than 180 degrees; the first loop is used to connect to a corresponding pulling structure 115, and the second turning section is used to output a current signal generated on the cable 1111.

In one specific embodiment, the second section where the second end of the cable 1111 is located is formed into a third turning section by a third turning process, and the third turning section is fixedly connected with the body of the cable 1111 to form a second wire loop; the second wire loop is used to connect a corresponding pulling structure 115.

In one embodiment, as shown in fig. 7 and 10, the cable 1111 is arranged in a meandering manner on the cross section to form at least three induction lines 1111a with different orientations connected in series in sequence, and the at least three induction lines 1111a with different orientations connected in series divide the cross section into a plurality of grids. Wherein, the first and last two induction lines 1111a of the at least three induction lines 1111a with different orientations connected in series in sequence may be disposed in a crossing manner. Optionally, the intersection point of the first and the last induction lines 1111a of the at least three induction lines 1111a with different orientations connected in series is close to or coincident with the geometric center of the cross section.

Furthermore, as shown in fig. 10, the intersection point connecting device 116 may be further disposed at the intersection point of the first and second sensing wires 1111a of the at least three sensing wires 1111a of different orientations connected in series in sequence. The cross point connection means 116 is connected to two sensing wires 1111a crossing each other, respectively. The main function of the cross point connection means 116 is to connect the sensing wires 1111a crossing each other, reducing the shaking of the entire sensing wire array. In addition, the cross-point connection device 116 may be made of an insulating material, so that contact between the sensing wires 1111a crossing each other may be avoided.

In one embodiment, the cross-point connector 116 includes a cross-point connector body, preferably made of an insulating material, having first and second non-communicating perforations, respectively, for passage of one length of cable and for passage of the other length of cable.

Signal processing system of second micro-charge induction device

As shown in fig. 7, the signal processing system 112 of the second micro-charge sensing device 110B includes an electrical box 1121 and a signal processing circuit module (typically manufactured as an integrated circuit board), wherein the electrical box 1121 is mounted on the outer surface of the housing structure of the dust removing system in use, and the signal processing circuit module is mounted in the electrical box 1121 and its signal input interface is in signal connection with the output portion of the corresponding probe 111 through a micro-current signal transmission structure.

Here, the signal processing system 112 of the second micro-charge sensing device 110B and the signal processing system 112 of the first micro-charge sensing device 110A may adopt the same scheme.

Mounting of a second microcharge sensing device

The second micro-charge sensing device 110B of the probe 111 manufactured by using the cable 1111 will be described below as a mounting process of the second micro-charge sensing device 110B and the second micro-charge sensing device 110B after mounting.

The installation process of one probe is as follows: the pulling structure 115 is first installed on the inner wall of the exhaust pipe 230. The first segment of the first end of one cable 1111 is then formed into a first folded segment by a first folding process, and a first wire loop is formed between the first folded segment and the body of the cable 1111, where the first wire loop is used to connect the corresponding pulling structure 115A (the first folded segment may be passed through a hole on the corresponding pulling device 115 so as to connect the first wire loop with the corresponding pulling device 115A). The first turning section is processed by a second turning section, and an included angle between the second turning section and the body is greater than 0 ° and less than 180 °, at this time, the second turning section is equivalent to branching from the body of the cable 1111, so that the second turning section can just be used as at least one section of the signal transmission line 1124 to realize output of a current signal. For the connection between the second turning section and the signal processing system 112, reference may be made to the content of the foregoing "signal processing system of the first micro-charge sensing device" section, which is not described herein. Thereafter, the second end of the cable 1111 is sequentially passed through the cable perforation of the pulling device 115B, the cable perforation of the pulling device 115C, and the cable perforation of the pulling device 115D, and the cable 1111 needs to be turned every time it is passed through one of the cable perforations; the second section of the cable 1111, where the second end is located, is processed through a third turning process to form a third turning section, where the third turning section is fixed to the body of the cable 1111 and forms a second wire loop, and the second wire loop is specifically used for connecting the pulling device 115D (the third turning section may be passed through a hole on the pulling device 115D so as to connect the second wire loop with the pulling device 115D). In this way, the cable 1111 is led to be routed in a meandering manner over the cross section by the traction structures 115. Therefore, the installation process is not complex in construction, and can be simple, convenient and quick.

Either the first micro-charge sensing device 110A or the second micro-charge sensing device 110B, when installed, may be connected to the control system in the manner shown in fig. 1. By the dust removing system abnormality monitoring program running in the upper computer 140, the dust removing units with possibly damaged filter elements can be automatically positioned according to the blowback information of each dust removing unit 210 and the output information of the signal processing system 112 of the first micro charge sensing device 110A or the second micro charge sensing device 110B.

The dust removing system abnormality monitoring program may be stored in the memory of the upper computer 140, and when the dust removing system abnormality monitoring program is executed by the processor of the upper computer 140, the following dust removing system monitoring method may be implemented.

Fig. 12 is a schematic diagram of a dust removal system monitoring method according to an embodiment of the present application. As shown in fig. 12, the dust removal system monitoring method includes:

s11: and acquiring back-flushing information of the at least two dust removing units 210, wherein the operation time of a back-flushing system of each dust removing unit 210 in the at least two dust removing units 210 can be determined through the back-flushing information.

When an offline blowback scheme is adopted, the blowback information may be an opening time of each exhaust valve 231 after the corresponding dust removal unit 210 completes blowback regeneration. When an in-line blowback scheme is employed, the blowback information may be the opening time of each pulse valve 216 in each dust removal unit 210.

S12: output information of the signal processing system 112 of the first micro-charge sensing device 110A or the signal processing system 112 of the second micro-charge sensing device 110B is obtained, and the change of the instantaneous flow rate of the particulate matter detected by the first micro-charge sensing device 110A or the second micro-charge sensing device 110B with time can be determined according to the output information.

S13: and determining a dust removing unit 210 of a corresponding operation back-blowing system when the instantaneous flow of the particulate matter detected by the first micro-charge sensing device 110A or the second micro-charge sensing device 110B is abnormally increased according to the back-blowing information and the output information, and then sending a notification pointing to the abnormality of the dust removing unit 210.

Scheme III

In the third embodiment, the first and second micro-charge sensing devices 110A and 110B are simultaneously applied to the dust removing system as shown in fig. 4 to 6. In such a case, as shown in fig. 7, the signal processing system 112 of the second micro-charge sensing device 110B and the signal processing system 112 of the first micro-charge sensing device 110A may be integrated in the electrical box 1121 of the same centralized signal processing system.

Since the first and second micro-charge sensing devices 110A and 110B are assembled together, the following dust removal system monitoring method can be performed by the upper computer 140 or the processor of the upper computer 140.

Fig. 13 is a schematic diagram of a dust removal system monitoring method according to an embodiment of the present application. As shown in fig. 13, the dust removal system monitoring method includes:

s21: and acquiring back-flushing information of the at least two dust removing units 210, wherein the operation time of a back-flushing system of each dust removing unit 210 in the at least two dust removing units 210 can be determined through the back-flushing information.

S22: output information of the signal processing system 112 of the first micro-charge sensing device 110A and the signal processing system 112 of the second micro-charge sensing device 110B is obtained, and the change of the instantaneous flow rate of the particulate matter detected by the first micro-charge sensing device 110A and the second micro-charge sensing device 110B with time can be determined through the output information.

S23: and determining a dust removing unit 210 of a corresponding operation back-blowing system when the instantaneous flow of the particulate matter detected by the first micro-charge sensing device 110A and the second micro-charge sensing device 110B is abnormally increased according to the back-blowing information and the output information, and then sending a notification pointing to the abnormality of the dust removing unit 210.

According to the dust removing system monitoring method, the dust removing unit with possibly damaged filter elements can be positioned more accurately, and false alarms are prevented.

Fig. 14 is a schematic structural diagram of a dust removal system monitoring device according to an embodiment of the present application. As shown in fig. 14, a dust removal system monitoring apparatus includes: a first information acquisition module 310, a second information acquisition module 320, and an abnormality determination notification module 330.

The first information obtaining module 310 is configured to obtain blowback information of the at least two dust removal units 210, and determine operation timing of a blowback system of each dust removal unit 210 in the at least two dust removal units 210 according to the blowback information.

The second information acquisition module 320 is configured to acquire output information of the signal processing system 112 of the first micro-charge sensing device 110A and/or the signal processing system 112 of the second micro-charge sensing device 110B, where the output information can determine a change of the instantaneous flow rate of the particulate matter detected by the first micro-charge sensing device 110A and/or the second micro-charge sensing device 110B with time.

The abnormality determination notification module 330 determines, according to the blowback information and the output information, a dust removal unit that operates the blowback system when the instantaneous flow of the particulate matter detected by the first micro-charge sensing device and/or the second micro-charge sensing device is abnormally increased, and then sends a notification indicating that the dust removal unit is abnormal.

Scheme IV

In the fourth aspect, the second micro-charge sensing device 110B is modified to: a microcharge sensing device comprising a probe 111, said probe 111 being, in use, inserted into an airflow path (herein specifically an exhaust pipe 230) and generating and outputting a current signal as particulate matter in the airflow path passes through the probe, said current signal being used as an input signal to a signal processing system 112, said probe 111 comprising a cable 1111, said cable 1111 being arranged in said airflow path by traction of a traction structure 115 which, in use, is distributed in said airflow path and is in insulated connection with a respective portion of said cable 1111. In this way, the micro-charge induction device of the fourth aspect can be more flexibly arranged on the engineering site.

Optionally, the first end of the pulling structure is connected to the inner wall of the airflow channel, and the pulling structure is provided with an insulating material so as to insulate the cable pulled by the pulling structure from the inner wall.

Optionally, the second end of the pulling structure is provided with a cable perforation for the part of the cable to pass through, which is required to be subjected to the turning processing, and the wire loop formed by the turning processing on the cable is sheathed with the corresponding cable perforation.

Optionally, the pulling structure includes: the first pull ring is used for sleeving the wire ring formed by the turning processing on the cable; the second pull ring is used for sleeving the hanging lugs arranged on the inner wall of the airflow channel; and two ends of the ceramic insulating connecting piece are respectively and movably connected with the first pull ring and the second pull ring.

Optionally, the pulling structure is provided with a spring which is in a stretched state when in use and applies a tensioning force to the cable.

Optionally, the first section where the first end of the cable is located is formed into a first folded section through first folding, and a first wire loop is formed between the first folded section and the body of the cable; the first turning section is processed through a second turning section, and an included angle between the second turning section and the body is more than 0 degrees and less than 180 degrees; the first wire loop is used for being connected with a corresponding traction structure, and the second turning section is used for outputting a current signal generated on the cable.

Optionally, the signal processing system comprises an electrical box and a signal processing circuit module, the electrical box is installed on the outer surface of the shell structure of the airflow channel when in use, the signal processing circuit module is installed in the electrical box, and a signal input interface of the signal processing circuit module is in signal connection with an output part corresponding to the probe through a micro-current signal transmission structure; the micro-current signal transmission structure comprises a signal transmission line, an insulating sleeve and an electromagnetic shielding pipe which are nested in a layered mode from inside to outside, wherein a first end of the signal transmission line is connected with a second end of the signal input interface and is connected with the second turning section, the first end of the electromagnetic shielding pipe is connected with the second end of the signal input interface, the second end of the signal input interface is inserted into an airflow channel from the shell structure, the first end of the insulating sleeve is positioned in the electromagnetic shielding pipe, so that the signal transmission line is isolated from the electromagnetic shielding pipe through the insulating sleeve, the second end of the insulating sleeve is positioned outside the electromagnetic shielding pipe and is wrapped outside the signal transmission line, and the second turning section is used as at least one section of the signal transmission line.

Optionally, the electromagnetic shielding tube comprises a rigid guiding shielding tube, one end of the rigid guiding shielding tube is inserted into the airflow channel in the shell structure, and the other end of the rigid guiding shielding tube extends to the outside of the shell structure; the first end of the insulating sleeve is positioned in the rigid guide shielding pipe so as to isolate the signal transmission line from the electromagnetic shielding pipe through the insulating sleeve, and the second end of the insulating sleeve is positioned outside the rigid guide shielding pipe and wrapped outside the signal transmission line.

Optionally, the second section where the second end of the cable is located is processed through a third turning to form a third turning section, and the third turning section is fixedly connected with the body of the cable to form a second wire loop; the second wire loop is used for connecting a corresponding traction structure.

Optionally, the signal processing system comprises an electrical box and a signal processing circuit module, the electrical box is installed on the outer surface of the shell structure of the airflow channel when in use, the signal processing circuit module is installed in the electrical box, and a signal input interface of the signal processing circuit module is in signal connection with an output part corresponding to the probe through a micro-current signal transmission structure; the micro-current signal transmission structure comprises a signal transmission line, an insulating sleeve and an electromagnetic shielding pipe which are nested in a layered mode from inside to outside, wherein a first end of the signal transmission line is connected with a second end of the signal input interface and is connected with the cable, a first end of the electromagnetic shielding pipe is connected with the second end of the signal input interface, the second end of the signal input interface is inserted into an airflow runner from the shell structure, the first end of the insulating sleeve is positioned in the electromagnetic shielding pipe, the signal transmission line is isolated from the electromagnetic shielding pipe through the insulating sleeve, and a second end of the insulating sleeve is positioned outside the electromagnetic shielding pipe and is wrapped outside the signal transmission line.

Optionally, the cable is zigzag laid in the airflow channel by traction of a traction structure which is distributed in the airflow channel in use and is respectively connected with a corresponding part of the cable in an insulating manner.

Optionally, the probe comprises at least one intersection formed by two lengths of cable intersecting each other, and an intersection connection device is arranged at the intersection, and the intersection connection device is connected with the two lengths of cable intersecting each other.

Optionally, the cross-point connecting device comprises a cross-point connecting device body preferably made of an insulating material, wherein the cross-point connecting device body is respectively provided with a first perforation and a second perforation which are not communicated with each other, the first perforation is used for passing one section of cable, and the second perforation is used for passing the other section of cable.

The above description is made regarding the contents of the embodiments provided in the present application. Those of ordinary skill in the art, with the benefit of this disclosure, will be able to implement the embodiments provided herein. Based on the foregoing provided herein, all other embodiments that would be apparent to one of ordinary skill in the art without making any inventive effort should be considered to be within the scope of the related invention provided herein.

Claims

1. A microcharge sensing device comprising a probe which, in use, is inserted into an airflow path and which generates and outputs a current signal as particulate matter in the airflow path passes through the probe, the current signal being used as an input signal to a signal processing system, the probe comprising:

the induction part comprises an induction linear array, the induction linear array is provided with at least two induction lines connected together, and the induction linear array is approximately distributed on the same cross section of the airflow channel when in use;

the output part is connected and conducted with each induction wire in the induction linear array at the same time and is used for outputting a current signal generated by each induction wire in the induction linear array;

at least two induction lines in all induction lines of the induction linear array are formed by turning and processing on the same prefabricated wire;

The prefabricated wires are cables; the cable is arranged in a zigzag manner on the cross section through traction of a traction structure which is distributed in the airflow channel during use and is respectively connected with the corresponding part of the cable in an insulating manner.

2. The microcharge sensing device of claim 1, wherein: the probe is manufactured by turning the cable; the output portion includes a first section where a first end of the cable is located.

3. The microcharge sensing device of claim 1, wherein: the first end of the pulling structure is connected to the inner wall of the airflow channel, and the pulling structure is provided with an insulating material so that a cable pulled by the pulling structure is mutually insulated from the inner wall.

4. The microcharge sensing device of claim 1, wherein: the second end of the traction structure is provided with a cable perforation for the part of the cable, which needs to be subjected to turning processing, to pass through, and the wire loop formed by the turning processing on the cable is mutually sheathed with the corresponding cable perforation.

5. The microcharge sensing device of claim 1 wherein the pulling structure comprises:

The first pull ring is used for sleeving the wire ring formed by the turning processing on the cable;

the second pull ring is used for sleeving the hanging lugs arranged on the inner wall of the airflow channel;

and two ends of the ceramic insulating connecting piece are respectively and movably connected with the first pull ring and the second pull ring.

6. The microcharge sensing device of claim 1, wherein: the cable is routed in a meandering manner over the cross-section by being drawn by the drawing structure which, in use, is distributed along the edge line of the cross-section.

7. The microcharge sensing device of claim 1, wherein: the first section of the first end of the cable is subjected to first turning to form a first turned section, and a first wire loop is formed between the first turned section and the body of the cable; the first turning section is processed through a second turning section, and an included angle between the second turning section and the body is more than 0 degrees and less than 180 degrees; the first wire loop is used for being connected with a corresponding traction structure, and the second turning section is used for outputting a current signal generated on the cable.

8. The microcharge sensing device of claim 7, wherein: the signal processing system comprises an electric box and a signal processing circuit module, wherein the electric box is arranged on the outer surface of the shell structure of the airflow channel when in use, the signal processing circuit module is arranged in the electric box, and a signal input interface of the signal processing circuit module is in signal connection with an output part corresponding to the probe through a micro-current signal transmission structure;

The micro-current signal transmission structure comprises a signal transmission line, an insulating sleeve and an electromagnetic shielding pipe which are nested in a layered mode from inside to outside, wherein a first end of the signal transmission line is connected with a second end of a signal input interface and is connected with the output part, a first end of the electromagnetic shielding pipe is connected with a second end of the signal input interface, the second end of the signal input interface is inserted into an airflow runner from the shell structure, the first end of the insulating sleeve is positioned in the electromagnetic shielding pipe so as to isolate the signal transmission line from the electromagnetic shielding pipe through the insulating sleeve, a second end of the insulating sleeve is positioned outside the electromagnetic shielding pipe and is wrapped outside the signal transmission line, and the second turning section is used as at least one section of the signal transmission line.

9. The microcharge sensing device of claim 1, wherein: a second section of the cable where the second end is located is processed through a third turning to form a third turning section, and the third turning section is fixedly connected with the body of the cable to form a second wire loop; the second wire loop is used for connecting a corresponding traction structure.

10. The microcharge sensing device of claim 1, wherein: the cable is arranged in a meandering manner on the cross section to form at least three induction lines in different directions which are sequentially connected in series, and the cross section is divided into a plurality of grids by the at least three induction lines in different directions which are sequentially connected in series.

11. The microcharge sensing device of claim 10, wherein: the first induction lines and the last induction lines of the at least three induction lines in different directions which are sequentially connected in series are arranged in a crossing way.

12. The microcharge sensing device of claim 11, wherein: and the intersection point of the first induction line and the second induction line in the at least three induction lines in different directions which are sequentially connected in series is close to or coincident with the geometric center of the cross section.

13. The microcharge sensing device of claim 11, wherein: and a cross point connecting device is arranged at the cross point of the first induction line and the second induction line of the at least three induction lines in different directions which are sequentially connected in series, and the cross point connecting device is respectively connected with the two induction lines which are mutually crossed.

14. The microcharge sensing device of claim 13, wherein: the cross point connecting device comprises a cross point connecting device body made of insulating materials, wherein a first perforation and a second perforation which are not communicated with each other are respectively arranged on the cross point connecting device body, the first perforation is used for passing one induction line, and the second perforation is used for passing the other induction line.

15. The micro-charge sensing device of any one of claims 1-14, wherein: the signal processing system is a signal processing system that obtains an output signal indicative of the flow of particulate matter from the input signal.

16. The micro-charge sensing device of any one of claims 1-14, wherein: the current signal includes at least one of a contact current signal generated on the probe when the particulate matter contacts the probe and an induced current signal generated on the probe when the particulate matter passes alongside the probe.

17. The utility model provides a dust pelletizing system, includes the dust remover, be equipped with little charge induction system on the gas admission air flow runner that waits to remove dust and/or the gas exhaust air flow runner that has removed dust of dust remover, little charge induction system includes the probe, the probe inserts corresponding air flow runner when using and produces and output current signal when the particulate matter in the air flow runner passes this probe, current signal is used as signal processing system's input signal, its characterized in that: the micro-charge sensing device employing the micro-charge sensing device of any one of claims 1-16.

18. A dust removal system, comprising:

the dust removing unit group comprises at least two dust removing units, each dust removing unit in the at least two dust removing units is provided with an independent air purifying box, and each independent air purifying box is respectively connected with an exhaust manifold;

the micro-charge induction device comprises a probe, wherein the probe is inserted into an airflow channel of the exhaust manifold when in use and generates and outputs a current signal when particulate matters in the airflow channel pass through the probe, and the current signal is used as an input signal of a signal processing system;

The method is characterized in that:

the micro-charge sensing device employing the micro-charge sensing device of any one of claims 1-16.