CN207908421U - A kind of portable switchgear gas content detection case - Google Patents

Abstract

The utility model is related to a kind of portable switchgear gas content detection cases, including babinet and case lid, it is flexibly connected between babinet and case lid, box house is equipped with three-decker, including first structure layer, second structure sheaf, third structure sheaf, first structure layer is equipped with gas inlet and outlet, liquid crystal touch screen, printer, second structure sheaf is equipped with main controller, cavity with sensor array, and the air pump being connected with cavity, third structure sheaf is equipped with power supply unit, gas inlet and outlet passes through appendix and air pump, cavity is sequentially connected, liquid crystal touch screen, printer, sensor array, air pump, power supply unit is connected with main controller signal.It is internal using three-layer stereo formula structure, embeds plurality of devices, substantially increases the utilization rate of housing interior volume, by the way of electrochemical sensor detection, have detection time short, the high advantage of accuracy rate, substation inspection efficiency can be greatly improved under the premise of ensureing that detection information is accurate.

Description

A kind of portable switchgear gas content detection case

Technical field

The utility model is related to switchgear gas content detection field more particularly to a kind of portable switchgear gas contents Detection case.

Background technology

As soon as switchgear is the entirety for being assembled into the components such as each equipment, busbar, supporting insulator in its shell, this So that its related experiment carries out after must being completed at the scene, but at the scene into experiments such as horizontal high voltage pressure resistance, PD, than in work The difficulty that factory carries out is much larger.Once there is accident in closed switchgear, and opening-type equipment of the harm usually than separation in the past is tight Weight, repair also want score from opening-type equipment it is complicated very much, the time for repairing consumption is also longer.

Current switch cabinet product structure is more and more next compact, and built-in electrical insulation nargin reduces therewith, and premature insulator failure is very Difficulty is therefore easily perceived by humans outside cabinet.Burr may occur during fabrication in inside switch cabinet, and component may during installation and transportation Loosening or poor contact, and then cause electrode potential to float, hot-spot；Insulation ag(e)ing in operation, in fact it could happen that metal particle, These premature insulator defects can all cause insulation degradation, in some instances it may even be possible to lead to different degrees of shelf depreciation.It puts long-term part Electricity can be such that insulation degradation damages and gradually expand, and cause entire insulation breakdown or edge flashing, and then to the safe operation of equipment It threatens, equipment is caused to break down at runtime, so that cause system blackout.When occurring PD inside equipment, air can It can discharge and decompose, O can be generated₃、NO、NO₂、N₂The gases such as O.The shelf depreciation energy caused by insulation defect and frequency difference, It is had differences so as to cause inside switch cabinet air separation product is reflected in.By the type of gas component in detection switch cabinet, Content and variation tendency are a kind of effective means for understanding switchgear interior insulation defect, to finding that inside switch cabinet lacks in time It falls into, adopts an effective measure and defect is avoided further to develop, reduce switchgear interruption of service and be of great significance.

Utility model content

The purpose of this utility model is to provide a kind of portable switchgear gas content detection cases, to solve above-mentioned background The problem of being proposed in technology.

The utility model is achieved through the following technical solutions：

A kind of portable switchgear gas content detection case, including babinet and case lid, it is movable between the babinet and case lid to connect It connects, the box house is equipped with three-decker, including first structure layer, the second structure sheaf, third structure sheaf, the first structure Layer is equipped with gas inlet and outlet, liquid crystal touch screen, printer, and second structure sheaf is equipped with main controller, carries sensor array The cavity of row and the air pump being connected with cavity, the third structure sheaf are equipped with power supply unit, and the gas inlet and outlet passes through Appendix is sequentially connected with air pump, cavity, the liquid crystal touch screen, printer, sensor array, air pump, power supply unit with Main controller signal is connected.

Preferably, the junction of the gas inlet and outlet and cavity is equipped with solenoid valve and anti-dust filter mesh.

Preferably, the cavity is rectangle glass cavity, and sensor array is embedded on cavity inner wall.

Preferably, the sensor array contains CO sensors, NO sensors, NO2 sensors, O3 sensors, the biography Sensor array is connected with signal conditioning circuit, AD conversion chip successively signal.

Preferably, the signal conditioning circuit input terminal and CO sensors, NO sensors, NO2 sensors, O3 sensors Main electrode, auxiliary electrode are connected, and the signal conditioning circuit has two-stage enlarging function.

Preferably, the data that the printer can be obtained according to main controller signal, print sensor array, the data packet It includes：The measured concentration of carbon monoxide, nitric oxide production measured concentration, the measured concentration of nitrogen dioxide, the measured concentration of ozone.

Preferably, there are two types of power supply modes, including DC power supply power supply and storage battery power supply for said supply unit tool.

Compared with prior art, what the utility model reached has the beneficial effect that：

A kind of portable switchgear gas content detection case provided by the utility model, it is internal to use three-layer stereo formula knot Structure embeds plurality of devices, substantially increases the utilization rate of housing interior volume, has small, easy to carry advantage, you can It is carried by patrol officer, the inside switch cabinet gas content of Different field is detected, can also opened for a long time a certain It closes cabinet and carries out on-line checking, the sensor array of the utility model is by the way of electrochemical sensor detection, relative to tradition Gas chromatographic detection instrument, have detection time it is short, the high advantage of accuracy rate, can ensure the accurate premise of detection information Under, greatly improve substation inspection efficiency.

Description of the drawings

It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only the preferred reality of the utility model Example is applied, it for those of ordinary skill in the art, without having to pay creative labor, can also be attached according to these Figure obtains other attached drawings.

Fig. 1 is overall structure figure provided by the utility model.

Fig. 2 is babinet schematic diagram provided by the utility model.

Fig. 3 is internal structure chart provided by the utility model.

Fig. 4 is sensor array circuitry figure provided by the utility model

In figure, 1 is case lid, and 2 be babinet, and 3 be gas vent, and 4 be gas access, and 5 be printer, and 6 be liquid crystal touch screen, 7 be first structure layer, and 8 be the second structure sheaf, and 9 be third structure sheaf, and 10 be main controller, and 11 be air pump, and 12 be accumulator, and 13 are Cavity, 14 be DC power supplier, and 15 be carrying handle.

Specific implementation mode

In order to be best understood from the utility model technology contents, specific embodiment is provided below, and in conjunction with attached drawing to this practicality It is novel to be described further.

Embodiment 1

Referring to Fig. 1,2,3, a kind of portable switchgear gas content detection case, including babinet 2 and case lid 1, the babinet 2 It is all made of aluminum alloy material with case lid 1, there is higher intensity, it is movable hinged between babinet 2 and case lid 1, on the case lid 1 also Equipped with carrying handle 15, convenient just patrol officer lifts, and the babinet 2 is internally provided with three-decker, including first structure layer 7, Second structure sheaf 8, third structure sheaf 9, the first structure layer 7 are equipped with gas inlet and outlet, liquid crystal touch screen 6, printer 5, Second structure sheaf 8 is equipped with main controller 10 and the cavity 13 with sensor array, and the third structure sheaf 9 is equipped with Air pump 11 and power supply unit, the liquid crystal touch screen 6, printer 5, sensor array, air pump 11, power supply unit are and main controller 10 signals are connected, and the liquid crystal touch screen 6 can show the information such as the gas concentration transmitted by main controller 10, the printer 5 The data that can be obtained according to 10 signal of main controller, print sensor array, the data include：The measured concentration of carbon monoxide, Nitric oxide production measured concentration, the measured concentration of nitrogen dioxide, the measured concentration of ozone, 4 one end of the gas access pass through defeated Tracheae is connected with switchgear, and the other end is sequentially connected by appendix and cavity 13, air pump 11, and the air pump 11 also passes through gas transmission Pipe is sequentially connected energy with cavity 13, gas access 3, switchgear, and the air pump 11 can be by the gas extraction in switchgear to cavity In 11, gas content is detected by the sensor array inside cavity 11, when the tests are completed, and by air pump 11 by cavity Gas in 13 is drawn back in switchgear again, is polluted to air to avoid switchgear gas, and said supply unit is master control Device 10, sensor array, air pump 11, liquid crystal touch screen 6 are powered.

Specifically, the cavity 13 is rectangle glass cavity, cavity 13 and gas access 4, the junction of gas vent 3 It is equipped with solenoid valve and anti-dust filter mesh, the cavity 13 is also connected with air pump, and the anti-dust filter mesh can filter extracted gas Dust in body, improve gas degree of purity, the solenoid valve is connected with main controller signal, when air pump is evacuated, main controller according to Air pump signal closes the solenoid valve at gas vent 3, and the solenoid valve at gas access 4 is opened, and enables air pump 11 by switchgear Gas extraction cavity 13 in, when air pump is blown, solenoid valve at gas vent 3 is opened, and the solenoid valve at gas access 4 closes It closes, air pump 11 is enable to send the gas in cavity 13 in switchgear again back to.

Referring to Fig. 4, specifically, the sensor array includes CO sensors, NO sensors, NO₂Sensor, O₃Sensor, The CO sensors, NO sensors, NO₂Sensor, O₃Sensor is connected with signal conditioning circuit, AD conversion chip signal, described CO sensors, NO sensors, NO₂Sensor, O₃Sensor is four electrode sensors of high-precision, interior to contain main electrode and auxiliary electricity Pole, the main electrode are connected with auxiliary electrode with signal conditioning circuit, and according to the difference of gas concentration, main electrode can be defeated with auxiliary electrode Go out corresponding electric current, but the two is of different sizes, signal conditioning circuit distinguishes the weak current of main electrode and auxiliary electrode output Two-stage amplification is carried out, and then the corresponding voltage signal of acquisition is poor, after the amplification conversion by AD conversion chip, becomes digital letter Number, and carry out with corresponding gas concentration it is corresponding, to obtain the numerical value of inside cavity gas concentration.

Specifically, said supply unit is by 14 external 220V power voltage supplies of DC power supplier, it can be online for a long time right The gas content of switchgear is monitored.

Embodiment 2

The present embodiment with embodiment 1 difference lies in by the way of accumulator 12 powered, can be by straight by said supply unit Galvanic electricity source module 14 charges to accumulator 12, patrol officer can be facilitated to carry the utility model by the way of the power supply of accumulator 12 The gas content detection case of offer is detected the switchgear of other positions.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent substitution, improvement and etc. done should be included in the utility model Within the scope of protection.

Claims (7)

1. a kind of portable switchgear gas content detection case, including babinet and case lid, which is characterized in that the babinet and case lid Between be flexibly connected, the box house is equipped with three-decker, including first structure layer, the second structure sheaf, third structure sheaf are described First structure layer is equipped with gas inlet and outlet, liquid crystal touch screen, printer, and second structure sheaf is equipped with main controller, carries The cavity of sensor array and the air pump being connected with cavity, the third structure sheaf be equipped with power supply unit, the gas into Outlet is sequentially connected by appendix and air pump, cavity, the liquid crystal touch screen, printer, sensor array, air pump, power supply Unit is connected with main controller signal.

2. a kind of portable switchgear gas content detection case according to claim 1, which is characterized in that the gas into Outlet and the junction of cavity are equipped with solenoid valve and anti-dust filter mesh.

3. a kind of portable switchgear gas content detection case according to claim 1, which is characterized in that the cavity is Rectangle glass cavity is embedded with sensor array on cavity inner wall.

4. a kind of portable switchgear gas content detection case according to claim 1, which is characterized in that the sensor Array contains CO sensors, NO sensors, NO₂Sensor, O₃Sensor, the sensor array with signal conditioning circuit, AD Signal is connected conversion chip successively.

5. a kind of portable switchgear gas content detection case according to claim 4, which is characterized in that the signal tune Manage circuit input end and CO sensors, NO sensors, NO₂Sensor, O₃The main electrode of sensor, auxiliary electrode are connected, the signal Modulate circuit has two-stage enlarging function.

6. a kind of portable switchgear gas content detection case according to claim 1, which is characterized in that the printer The data that can be obtained according to main controller signal, print sensor array, the data include：The measured concentration of carbon monoxide, one The measured concentration of nitrogen oxide, the measured concentration of nitrogen dioxide, the measured concentration of ozone.

7. a kind of portable switchgear gas content detection case according to claim 1, which is characterized in that the power supply is single There are two types of power supply modes, including DC power supply power supply and storage battery power supply for member tool.