CN210606052U

CN210606052U - Filtering component, detector and alarm system

Info

Publication number: CN210606052U
Application number: CN201922259748.4U
Authority: CN
Inventors: 陈其林; 孙庆凯; 田莉方
Original assignee: HENAN CHICHENG ELECTRIC CO LTD
Current assignee: HENAN CHICHENG ELECTRIC CO LTD
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-05-22
Anticipated expiration: 2029-12-16

Abstract

The application relates to the technical field of gas detection, in particular to a filtering assembly, a detector and an alarm system. A filter assembly includes a housing and a waterproof and breathable member disposed within the housing; an air inlet hole is arranged on the side wall along the circumferential direction of the shell, an air exhaust hole is arranged on one side wall along the axis direction of the shell, and a waterproof and breathable piece is arranged between the air inlet hole and the air exhaust hole. The filter assembly is used on the detector, and gaseous inlet port that sets up along casing circumference direction enters into in the casing, filters through waterproof ventilative piece, through exhaust vent discharge to give the sensor, the filter assembly of this application can avoid gaseous with great velocity of flow direct transmission for the sensor, thereby reduces the damage that leads to the fact the sensor.

Description

Filtering component, detector and alarm system

Technical Field

The application relates to the technical field of gas detection, in particular to a filtering assembly, a detector and an alarm system.

Background

In recent years, with the improvement of safety awareness of people, the application of gas alarms is becoming more and more extensive.

The existing gas alarm is simple in structure and easy to damage by gas directly entering the sensor in the actual application process, and the service life of the existing gas alarm is short.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a filtering component, detector and alarm system, solves the gas alarm among the prior art to a certain extent in the in-service use process, the shorter technical problem of life.

The application provides a filter assembly for a detector, which comprises a shell and a waterproof and breathable piece arranged in the shell;

an air inlet hole is formed in the side wall of the shell along the circumferential direction, an exhaust hole is formed in one side wall of the shell along the axis direction, and the waterproof breathable piece is located between the air inlet hole and the exhaust hole.

In the above technical solution, further, an end cover is provided on the other side wall along the axial direction of the housing.

In the above technical solution, further, the air inlet holes are provided with a plurality of air inlet holes, and the plurality of air inlet holes are arranged at intervals.

The application also provides a detector, which comprises a sensor and the filter assembly; the exhaust hole of the filtering component faces to the sensor, and the sensor is used for detecting the concentration of the gas filtered by the filtering component.

In the above technical scheme, further, still include first mounting, the filter assembly with the sense terminal of sensor all sets up fixedly in first mounting.

In the above technical scheme, further, the sensor further comprises a second fixing piece, wherein the second fixing piece is sleeved on the first fixing piece and wraps the transmission end of the sensor.

In the above technical solution, further, the filter further includes a connecting portion, and the connecting portion is used for fixing the filter assembly on the first fixing member;

and a gas circulation channel is formed in the axial direction of the connecting part, and the exhaust hole is communicated with the sensor through the gas circulation channel.

In the above technical solution, further, the connection portion is in threaded connection with the first fixing member.

In the above technical solution, further, a gasket is disposed at a position where the sensor abuts against the first fixing member.

The application also provides an alarm system, which comprises an alarm, a controller electrically connected with the alarm and the detector electrically connected with the controller;

the detector can transmit the detected gas concentration value to the controller, the controller judges whether the gas concentration value is higher than a set value of the gas concentration, and when the controller judges that the gas concentration value is higher than the set value of the gas concentration, the controller controls the alarm to send out an alarm signal.

Compared with the prior art, the beneficial effect of this application is:

an air inlet hole is formed in the side wall in the circumferential direction of the shell, an exhaust hole is formed in one side wall in the axis direction of the shell, and the waterproof breathable piece is arranged between the air inlet hole and the exhaust hole.

Specifically, filtering component uses on the detector, and gaseous inlet port that sets up along casing circumference enters into in the casing, process waterproof ventilative piece filters, and through exhaust vent discharge to give the sensor, the filtering component of this application can avoid gaseous with great velocity of flow direct transmission for the sensor, thereby reduces the damage that leads to the fact the sensor.

The application also provides a detector, which comprises a sensor and the filter assembly; the exhaust hole of the filtering component faces to the sensor, and the sensor is used for detecting the concentration of the gas filtered by the filtering component. The filter assembly comprises the filter assembly. Based on the analysis, the service life of the detector is longer.

The application also provides an alarm system, which comprises an alarm, a controller electrically connected with the alarm and the detector electrically connected with the controller; the detector can transmit the detected gas concentration value to the controller, the controller judges whether the gas concentration value is higher than a set value of the gas concentration, and when the controller judges that the gas concentration value is higher than the set value of the gas concentration, the controller controls the alarm to send out an alarm signal. Including the ones described in the above schemes. Based on the analysis, the service life of the alarm system is longer.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a filter assembly according to an embodiment of the present disclosure;

FIG. 2 is an elevation view of a filter assembly provided in accordance with an embodiment of the present disclosure;

FIG. 3 is an assembly view of a filter assembly according to one embodiment of the present disclosure;

FIG. 4 is an assembly view of a probe provided in accordance with a second embodiment of the present application;

fig. 5 is a schematic structural diagram of a connection portion according to a third embodiment of the present application.

In the figure: 100-a housing; 101-air inlet holes; 103-end cap; 104-a sensor; 105-a first fixture; 106-a second fixture; 107-a connecting part; 108-gas flow-through channels; 109-a gasket; 110-waterproof breathable film.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example one

Referring to fig. 1 to 3, the present application provides a filter assembly for a probe, including a housing 100 and a waterproof and air-permeable member disposed in the housing 100; an air inlet 101 is formed in the side wall of the casing 100 in the circumferential direction, an air outlet is formed in one side wall of the casing 100 in the axial direction, and the waterproof breathable member is located between the air inlet 101 and the air outlet.

Preferably, the waterproof breathable member is a waterproof breathable film 110, the waterproof breathable film 110 is a novel high-molecular waterproof material, and specifically, the waterproof breathable film 110 includes a PP spunbonded non-woven fabric, a PE high-molecular breathable film and a PP spunbonded non-woven fabric which are sequentially stacked.

In the actual use, the filter assembly is used on the detector, and gas enters into along the inlet port 101 that casing 100 circumference set up in the casing 100, through waterproof ventilative piece filters, and through the exhaust vent discharge, and transmit for the sensor. Wait to detect gaseous back in getting into casing 100 through inlet port 101 in this application, discharge through the exhaust hole, wait to detect gaseous flow direction can change at this in-process, consequently can avoid gaseous with great velocity of flow direct transmission for the sensor, reduce the damage that leads to the fact the sensor.

Specifically, because the trompil direction of inlet port 101 and the exhaust hole on the casing 100 is the incorgruous, consequently gaseous through inlet port 101 that the circumference of casing 100 was seted up can enter into slowly with less gas flow rate inside the casing 100, compare in gas among the prior art directly enters into the sensor with great flow rate, cause the damage to the sensor and compare, the inlet port 101 that the circumference of the gas that passes through the casing of this application was seted up enters into casing 100 in the retransmission gives the sensor, is difficult to cause the damage to the sensor.

In the first generation filtering structure in the prior art, a stainless steel sintered sheet is adopted to filter gas, and as the first generation filtering structure can not block water flow from entering, in order to improve the waterproof performance, a waterproof breathable film is added on the basis of the first generation filtering product in the second generation filtering product, however, the air inlet of the stainless steel sintered sheet or the filtering net is small and dense, the air inlet of the waterproof breathable film is also small and dense, and the stainless steel sintered sheet or the filtering net and the waterproof breathable film are overlapped to cause air inlet difficulty and influence the detection accuracy of the sensor, in addition, small particles such as oil stain, dust and the like mixed in the gas easily block the filtering structure in the prior art, in the application, the gas enters from the air inlet formed in the circumferential direction of the shell 100, the vent hole formed in the axial direction of the shell 100 can effectively prevent the small particles such as oil stain, dust and the like mixed in the gas, and then the waterproof breathable film 110 is utilized to filter the, the filtering effect can be ensured, and the detection effect of the sensor can be ensured.

In this embodiment, in order to facilitate replacement of the waterproof breathable film 110, an end cap 103 is provided on the other side wall in the axial direction of the case 100.

Specifically, at a certain time interval, when the waterproof breathable film 110 needs to be replaced, the end cover 103 on the housing 100 is opened, and then the waterproof breathable film 110 can be taken down to replace a new waterproof breathable film 110, which is simple and convenient to operate.

In this embodiment, in order to ensure the accuracy and the sensitivity of the detection of the sensor, the air inlet holes 101 are provided in plurality, and the air inlet holes 101 are arranged at intervals.

Specifically, gas can enter the interior of the housing 100 from a plurality of spaced apart gas inlet holes 101, thereby enabling the gas to be more quickly delivered to the sensor.

More specifically, the number of the air intake holes 101 is not particularly limited.

Example two

The second embodiment is an improvement on the basis of the first embodiment, technical contents disclosed in the first embodiment are not described repeatedly, and contents disclosed in the second embodiment also belong to contents disclosed in the first embodiment.

Referring to fig. 4, a detector comprises a sensor 104 and the above-mentioned filter assembly, wherein the exhaust hole of the filter assembly faces to the sensor 104, and the sensor 104 can detect the gas concentration of the gas to be detected; i.e., the concentration of the gas filtered by the filter assembly can be detected by the sensor 104.

In this embodiment, a first fixing member 105 is further included, and the filter assembly and the detection end of the sensor 104 are both fixedly disposed in the first fixing member 105.

Preferably, the first fixing member 105 is a first sleeve, the filter assembly and the detection end of the sensor 104 are both fixedly disposed in the first sleeve, and the first sleeve is used for protecting the filter assembly and the detection end of the sensor 104, so as to improve the sensitivity, stability and corrosion resistance of the sensor 104.

In an embodiment, the sensor further includes a second fixing member 106, and the second fixing member 106 is sleeved on the first fixing member 105 and wraps the transmission end of the sensor 104.

Preferably, the second fixing member 106 is a second sleeve, and the diameter of the second sleeve is larger than that of the first sleeve, so that the second sleeve can be sleeved on the first sleeve.

In this embodiment, in order to further improve the stability of the sensor 104, a gasket 109 is disposed at a position where the sensor 104 abuts against the first fixing member 105, so that the measurement result of the sensor 104 is more accurate.

Preferably, the gasket 109 is any one of a rubber gasket, a non-asbestos fiber rubber gasket, a flexible graphite metal composite gasket, a polytetrafluoroethylene gasket, and a polytetrafluoroethylene-coated gasket.

EXAMPLE III

The third embodiment is an improvement on the third embodiment, technical contents disclosed in the third embodiment are not described repeatedly, and the contents disclosed in the third embodiment also belong to the contents disclosed in the third embodiment.

Referring to fig. 5, in order to improve the assembly efficiency and reduce the complexity of the assembly process of the present application, the probe further includes a connecting portion 107, the connecting portion 107 is disposed on the housing 100, a gas flow channel 108 is opened along an axial direction of the connecting portion 107, and the gas discharge hole is communicated with the sensor 104 through the gas flow channel 108.

Specifically, in the actual use process, threaded connection is adopted between the connecting portion 107 and the first fixing member 105, more specifically, the outer side wall of the connecting portion 107 is provided with an external thread, the inner side wall of the first fixing member 105 is provided with an internal thread, the external thread and the internal thread are mutually matched, and the filter assembly is fixed on the first fixing member 105 by utilizing the threaded assembling mode.

Example four

The fourth embodiment is an improvement on the basis of the fourth embodiment, technical contents disclosed in the fourth embodiment are not described repeatedly, and the contents disclosed in the fourth embodiment also belong to the contents disclosed in the fourth embodiment.

The application also provides an alarm system, including the alarm, with the controller that the alarm electricity is connected and with foretell detector that the controller electricity is connected.

In the actual use process, firstly setting a gas concentration range value (the range value is a normal concentration range value) for the controller; then the detector is placed in an environment needing to be monitored, the detector can transmit a detected gas concentration value to the controller, gas is transmitted to the controller through the filtering component, the controller judges whether the gas concentration value is within a set concentration range value, and when the controller judges that the gas concentration value is not within the set concentration range value, the controller controls the alarm to send an alarm signal. The air exhaust, cut-off and spraying system is driven to prevent explosion, fire and poisoning accidents, thereby ensuring safe production.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application. Moreover, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments.

Claims

1. A filter assembly for a probe, comprising a housing and a waterproof and breathable member disposed within the housing;

2. The filter assembly of claim 1, wherein an end cap is provided on the other side wall in the axial direction of the housing.

3. The filter assembly of claim 1, wherein the air inlet holes are provided in a plurality, and the plurality of air inlet holes are spaced apart.

4. A probe comprising a sensor and the filter assembly of any one of claims 1-3;

the exhaust hole of the filtering component faces to the sensor, and the sensor is used for detecting the concentration of the gas filtered by the filtering component.

5. The probe of claim 4, further comprising a first fixture, wherein the filter assembly and the sensing end of the sensor are both fixedly disposed within the first fixture.

6. The probe of claim 5, further comprising a second fixing member, wherein the second fixing member is sleeved on the first fixing member and covers the transmission end of the sensor.

7. The probe of claim 6, further comprising a connecting portion for securing the filter assembly to the first fixture;

8. The probe of claim 7, wherein the connecting portion is threadably connected to the first fixture.

9. A probe according to claim 5, wherein a spacer is provided at the location where the sensor abuts the first fixing member.

10. An alarm system comprising an alarm, a controller electrically connected to the alarm, and a detector according to any one of claims 4 to 9 electrically connected to the controller;