CN207351975U - Environmental detection set with high measurement accuracy - Google Patents

Abstract

The utility model discloses a kind of environmental detection set with high measurement accuracy, it includes a housing（100）, a housing air inlet is provided with the housing（101）, a housing air outlet（102）, in the housing（100）It is internally provided with sensor stand（700）, some sensors（701）It is arranged on the sensor stand, wherein in the sensor（701）Outside is provided with a protective cover（300）, in the housing（100）Internal close housing air inlet（101）Place is provided with vacuum pump（200）, in the housing（100）Internal close housing air outlet（102）Place is provided with centrifugal blower（400）, the protective cover（300）, vacuum pump（200）Sequentially it is tightly connected by hose.The utility model has and will flow through the gas flow rate unification of each sensor, and can accelerate the exchange velocity of enclosure interior and extraneous gas；And the characteristics of protecting sensor, maintenance to facilitate.

Description

Environmental detection set with high measurement accuracy

Technical field

It the utility model is related to a kind of environmental detection set, more particularly to a kind of environment measuring dress with high measurement accuracy Put.

Background technology

Applicant is had found in environment detector housing when research and development have the function of the environment monitor of more detection projects Internal multiple environmental detection sensors when being exchanged inside housings with extraneous gas, flow through each sensing since position is different The gas flow rate of device is different, that is to say, that the accuracy in detection of sensor is had a great influence by air velocity, and then influences environment inspection Survey the detection result of instrument；In addition, each sensor is exposed inside housings, easily to external environment influence, sensor is reduced Service life.

The content of the invention

In order to solve the above technical problems, the utility model provides a kind of environmental detection set with high measurement accuracy, its Including a housing 100, a housing air inlet 101, a housing air outlet 102, in the housing 100 are provided with the housing Portion is provided with sensor stand 700, and some sensors 701 are arranged on the sensor stand, wherein in the sensor 701 outsides are provided with a protective cover 300, and vacuum pump 200 is provided with housing air inlet 101 in the inside of housing 100, In the inside of housing 100 centrifugal blower 400, the protective cover 300, vacuum pump 200 are provided with housing air outlet 102 Sequentially it is tightly connected by hose.

Preferably, the vacuum pump 200 has air inlet 202 and gas outlet 201, and the centrifugal blower 400 has centrifugation Air inlet 402 and centrifugal fan air outlet 401, the protective cover 300 have suction nozzle 302 and outlet nozzle 301, wherein institute The outlet nozzle 301 and the air inlet 202 of the vacuum pump 200 for stating protective cover 300 are tightly connected by hose, the vacuum pump 200 gas outlet 201 is tightly connected a hose 203, the hose 203 extend to the centrifugal blower of the centrifugal blower 400 into At air port 402.

Preferably, the protective cover 300 includes first side 300A, second side 300B and is disposed there between Seal 900.

Preferably, the first side 300A is provided with air admission hole 303, venthole 304, respectively with the suction nozzle 302, Outlet nozzle 301 is tightly connected.

Preferably, the first side 300A is provided with the groove knot adaptable with the sensor 701 and seal 900 Structure 900A.

Preferably, the second side 300B is provided with some gauge holes 306 for accommodating the sensor 701, and Perpendicular to the raised structures 900B being adapted with the seal 900, groove structure 900A of second side 300B extensions.

Preferably, the protective cover 300 is polytetrafluoroethylene (PTFE) or stainless steel.

Preferably, a waterproof construction 600 is further included in the housing 100, is arranged at housing air inlet 101 and vacuum pump Between 200.

Preferably, the waterproof construction 600 has at least one water-retaining structure 601, the water-retaining structure 601 and housing 100 are tightly connected.

Preferably, 101 bottom of housing air inlet is located at same level with 100 bottom surface of housing.

In conclusion technical solution disclosed in the utility model, which has, to flow through the gas flow rate unification of each sensor, And the exchange velocity of enclosure interior and extraneous gas can be accelerated；And the characteristics of protecting sensor, maintenance to facilitate.

Brief description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, can also be according to the attached drawing of these attached drawings acquisition other embodiment.

Fig. 1 is the utility model environment monitor body diagram；

Fig. 2 is the utility model environment monitor housing parts schematic cross-sectional view；

Fig. 3 is the utility model environment monitor enclosure interior schematic diagram；

Fig. 4 is the utility model sensor stand and protective cover exploded perspective view；

Fig. 5 is the utility model protective cover front schematic view；

Fig. 6 is the utility model protective cover reverse side schematic diagram；

Fig. 7 is the utility model protective cover first side schematic diagram；

Fig. 8 is the utility model protective cover second side schematic diagram.

Embodiment

For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings State.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in fact in many different forms It is existing, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is the public affairs made to the utility model Open the understanding more thorough and comprehensive of content.Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to The normally understood implication of those skilled in the art of the utility model is identical.Herein in the specification of the utility model Used term is intended merely to the purpose of description specific embodiment, it is not intended that limitation the utility model.It is used herein Term " and/or " include the arbitrary and all combinations of one or more relevant Listed Items.

The particular content of the utility model is described in detail below in conjunction with Fig. 1 to Fig. 8.As shown in Figures 1 to 4, originally Utility model discloses a kind of environmental detection set with high measurement accuracy, it includes a housing 100, is set on the housing There is a housing air inlet 101, a housing air outlet 102, sensor stand 700, Ruo Ganchuan is internally provided with the housing 100 Sensor 701 and carbon dioxide sensor 800 are arranged on the sensor stand, wherein in the outside of sensor 701 A protective cover 300 is provided with, vacuum pump 200 is provided with housing air inlet 101 in the inside of housing 100, described The inside of housing 100 is provided with centrifugal blower 400 at housing air outlet 102, and steam mistake is internally provided with the housing 100 Filter 500, the moisture filter 500, protective cover 300, carbon dioxide sensor 800, vacuum pump 200 are sequentially close by hose Envelope connection.

Technical solution disclosed in the utility model will be arranged on sensor stand 700 by the protective cover 300 of integral type Several sensors 800 be sealed in the same space, set further through the inside of housing 100 is arranged at housing air inlet 101 It is equipped with vacuum pump 200, is provided with housing air outlet 102 centrifugal blower 400 and moisture filter 500 and some soft Pipe forms a special air ventilation passage, the first gas in housing 100 under the action of vacuum pump 200 so that gas flow rate Uniformly, and by moisture filter 500 enter, filter out the steam in gas after moisture filter 500（Because of the overweight meeting of steam Influence accuracy of detection）, subsequently into protective cover 300, Uniform gas flow velocity by each sensor, then pass through vacuum again Pump 200, which is delivered the gas at housing air outlet 102, is provided with the discharge hull outside of centrifugal blower 400, is improved with realizing The exchange velocity of enclosure interior and extraneous gas, and ensure that the gas flow rate for flowing through each sensor is relatively uniform, meanwhile, this reality Have the function that to protect the sensor from extraneous factor interference and infringement with the new protective roof structure.

It should be noted that carbon dioxide sensor 800 described in the utility model is arranged on outside protective cover 300, improve The exchange velocity of carbon dioxide sensor and extraneous gas, and ensure that the gas flow rate for flowing through carbon dioxide sensor is relatively equal It is even, also can by from the gas that protective cover 300 exports via by vacuum pump 200 that gas is defeated again after carbon dioxide sensor 800 Send to being provided with centrifugal blower 400 at housing air outlet 102 and discharge hull outside.Can certainly be by carbon dioxide sensing Device 800 is arranged inside protective cover 300, is achieveed the purpose that identical.

In addition, housing 100 described in the utility model, which can be metal shell, either includes the compound of phase-change material Metal shell, using the Composite metal shell of phase-change material, using the phase-change constant-temperature characteristic of phase-change material, maintains enclosure interior temperature Spend it is constant, can ensure that when local environment temperature raises enclosure interior electronic device work normally；Some sensors 701 can To be dust sensor, photosensitive sensor, temp-sensitive sensor, gas sensor, humidity sensor, acoustic sensor, nuclear radiation A kind of and/or multiple combinations therein such as sensor, anion sensor, bacterium colony sensor, chemical sensor, specifically can basis Application environment selects suitable sensor to detect different environmental datas；TYGON hoses, the protection may be selected in the hose Cover 300 be polytetrafluoroethylene (PTFE) or stainless steel, and adsorbed gas is not easy with surface is smooth using polytetrafluoroethylene (PTFE) or stainless steel Or the characteristic of impurity, the percent of pass by protective cover gas is improved, reduces influence of the extraneous factor to testing result.

Further, vacuum pump 200 described in the utility model has air inlet 202 and gas outlet 201, the protective cover 300 have suction nozzle 302 and outlet nozzle 301, and there is the centrifugal blower 400 air inlet of centrifugal fan 402 to go out with centrifugal blower Air port 401, the moisture filter 500 have air inlet 502 and a gas outlet 501, the carbon dioxide sensor 800 have into Gas port 801 and gas outlet 802, wherein the suction nozzle 302 of the gas outlet 501 of the moisture filter and protective cover 300 is by soft The seal of tube connects, and the outlet nozzle 301 of the protective cover 300 and the air inlet 801 of the carbon dioxide sensor 800 pass through hose It is tightly connected, the gas outlet 802 of the carbon dioxide sensor 800 and the air inlet 202 of the vacuum pump 200 are close by hose Envelope connection, the gas outlet 201 of the vacuum pump 200 are tightly connected a hose 203, and the hose 203 extends to the centrifugation wind At the air inlet of centrifugal fan 402 of machine 400, go out since the centrifugal fan air outlet 401 of the centrifugal blower 400 is arranged at housing 102 side of air port, in order to discharge housing 100 rapidly by the gas of each sensor, accelerates the gas flowing in housing, and then Gas to be measured can more accurately be detected.

Due to being provided with vacuum pump 200 and other electronics devices at housing air inlet 101 in the inside of housing 100 Part, to strengthen waterproofing grade, the utility model further includes a waterproof construction 600, is arranged at housing air inlet 101 and vacuum pump Between 200, the waterproof construction 600 has at least one water-retaining structure 601, and the water-retaining structure 601 connects with the sealing of housing 100 Connect, it is preferred that the height of the waterproof construction 600 should be greater than the height of vacuum pump 200.Go out it should be noted that being arranged at housing The inside of centrifugal blower 400 at air port 102 has waterproof construction, therefore herein without additionally setting waterproof construction 600.

In addition, the bottom surface of the bottom of the housing air inlet 101 and housing 100 is arranged to identical put down by the utility model Face, i.e. air inlet are in same plane with housing bottom surface, in order to which the water that waterproof construction 600 stops quickly is discharged from housing.

As shown in Fig. 4 to Fig. 8, protective cover 300 described in the utility model includes first side 300A, second side 300B And the seal 900 being disposed there between, the first side 300A, second side 300B are polytetrafluoroethylene (PTFE) or not Rust steel material, seal 900 is soft material（Such as rubber) to prevent gas from leaking.It is provided with the first side 300A Air admission hole 303, venthole 304, are tightly connected with the suction nozzle 302, outlet nozzle 301 respectively.

In addition, the first side 300A is additionally provided with the groove knot adaptable with the sensor 701 and seal 900 Structure 900A, the groove structure 900A includes the strip structure being adapted with seal 900 and cooperation fixed screw holes 305 are used Circular configuration；The first side 300A is additionally provided with the gas-guiding structure of gas circulation, and the gas-guiding structure, which is divided into first, leads Depressed structure 307, the second gas-guiding structure 308, the 3rd gas-guiding structure 309, the air admission hole 303, the first gas-guiding structure 307, second Gas-guiding structure 308, the 3rd gas-guiding structure 309 and venthole 304 form a gas channel, and bootable gas is in sequence Flow through each sensor.Wherein, first gas-guiding structure 307, the second gas-guiding structure 308, the quantity of the 3rd gas-guiding structure 309 At least one, specifically can be according to the appropriate change of actual use.

Second side 300B described in the utility model is provided with some gauge holes 306 for accommodating the sensor 701, And the raised structures being adapted with the seal 900, groove structure 900A upwardly extended perpendicular to second side 300B 900B。

Sealed between some sensors 701 and protective cover 300 described in the utility model by multiple soft sealing rings, institute State between the suction nozzle 302, outlet nozzle 301 and first side 300A of protective cover 300 is also by soft sealing ring sealing, attached drawing In have diagram, but non-label, therefore illustrate herein.In addition, seal 900 has a gap structure 901 and screw hole 902, respectively For coordinating the 3rd gas-guiding structure 309, and each screw to fix and use.

It is above the utility model preferred forms, the utility model, which can also become, turns to vacuum pump 200 and protective cover The technical solution of 300 compositions（Only narration and the difference part of preferred forms below）, i.e.,：Gas in housing 100 is true Under the action of sky pump 200, entered with uniform flow velocity by the suction nozzle 302 of protective cover 300, flowed through each in protective cover 300 After a sensor 701, the air inlet 201 via the vacuum pump 200 for the hose being connected with outlet nozzle 301 enters in vacuum pump, institute The gas outlet 201 for stating vacuum pump 200 is tightly connected a hose 203, and it is straight that the hose 203 extends to 102 side of housing air outlet Run in hull outside, to improve the exchange velocity of enclosure interior and extraneous gas.

In addition, the utility model, which can also become, turns to vacuum pump 200, the skill of protective cover 300 and the composition of moisture filter 500 Art scheme（Only narration and the difference part of preferred forms below）, i.e.,：The work of gas in housing 100 in vacuum pump 200 Under, entered by the air inlet 502 of moisture filter 500, filter out the steam in gas after moisture filter 500（Cause Steam is overweight to influence detection result）, the suction nozzle that then passes through protective cover 300 via the gas outlet 501 of moisture filter 500 302 enter, and are led to the consistent gas to be detected of dry flow velocity by the gas outlet 201 of empty pump 200 under the action of empty pump 200 Cross hose and sequentially flow through sensor 701 different in sensor protective shield 300, via the true of the hose being connected with outlet nozzle 301 The air inlet 201 of sky pump 200 enters in vacuum pump, and the gas outlet 201 of the vacuum pump 200 is tightly connected a hose 203, described Hose 203 extends to 102 side of housing air outlet and is expelled directly out hull outside, to improve exchanging for enclosure interior and extraneous gas Speed.

In addition, the utility model, which can also become, turns to vacuum pump 200, the technology of protective cover 300 and the composition of centrifugal blower 400 Scheme（Only narration and the difference part of preferred forms below）, i.e.,：The effect of gas in housing 100 in vacuum pump 200 Under, entered with uniform flow velocity by the suction nozzle 302 of protective cover 300, after flowing through each sensor 701 in protective cover 300, Air inlet 201 via the vacuum pump 200 for the hose being connected with outlet nozzle 301 enters in vacuum pump, and the vacuum pump 200 goes out Gas port 201 is tightly connected a hose 203, and the hose 203 extends to the air inlet of centrifugal fan 402 of the centrifugal blower 400 Place, then hull outside is discharged by the centrifugal fan air outlet 401 for the centrifugal blower 400 for being arranged at 102 side of housing air outlet, with Improve the exchange velocity of enclosure interior and extraneous gas.

Technical solution disclosed in the utility model, can will flow through the gas flow rate unification of each sensor, and can accelerate shell Internal portion and the exchange velocity of extraneous gas, improve the precision of detection.

Embodiment described above only expresses one or more of embodiments of the utility model, its describe it is more specific and In detail, but it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for this area For those of ordinary skill, without departing from the concept of the premise utility, various modifications and improvements can be made, these Belong to the scope of protection of the utility model.

Claims (10)

1. a kind of environmental detection set with high measurement accuracy, it includes a housing（100）, a shell is provided with the housing Body air inlet（101）, a housing air outlet（102）, in the housing（100）It is internally provided with sensor stand（700）, it is some Sensor（701）It is arranged on the sensor stand, it is characterised in that：In the sensor（701）Outside is provided with one Protective cover（300）, in the housing（100）Internal close housing air inlet（101）Place is provided with vacuum pump（200）, described Housing（100）Internal close housing air outlet（102）Place is provided with centrifugal blower（400）, the protective cover（300）, vacuum pump （200）Sequentially it is tightly connected by hose.

2. the environmental detection set according to claim 1 with high measurement accuracy, it is characterised in that：The vacuum pump （200）With air inlet（202）With gas outlet（201）, the centrifugal blower（400）With air inlet of centrifugal fan（402）With Centrifugal fan air outlet（401）, the protective cover（300）With suction nozzle（302）With outlet nozzle（301）, wherein the protection Cover（300）Outlet nozzle（301）With the vacuum pump（200）Air inlet（202）It is tightly connected by hose, the vacuum pump （200）Gas outlet（201）It is tightly connected a hose（203）, the hose（203）Extend to the centrifugal blower（400）'s Air inlet of centrifugal fan（402）Place.

3. the environmental detection set according to claim 2 with high measurement accuracy, it is characterised in that：The protective cover （300）Including first side（300A）, second side（300B）And the seal being disposed there between（900）.

4. the environmental detection set according to claim 3 with high measurement accuracy, it is characterised in that：The first side （300A）It is provided with air admission hole（303）, venthole（304）, respectively with the suction nozzle（302）, outlet nozzle（301）Sealing connects Connect.

5. the environmental detection set according to claim 3 with high measurement accuracy, it is characterised in that：The first side （300A）It is provided with and the sensor（701）And seal（900）Adaptable groove structure（900A）.

6. the environmental detection set according to claim 5 with high measurement accuracy, it is characterised in that：The second side （300B）It is provided with and accommodates the sensor（701）Some gauge holes（306）, and perpendicular to second side（300B）Prolong It is stretching with the seal（900）, groove structure（900A）Adaptable raised structures（900B）.

7. the environmental detection set according to claim 1 with high measurement accuracy, it is characterised in that：The protective cover （300）For polytetrafluoroethylene (PTFE) or stainless steel.

8. the environmental detection set according to claim 1 with high measurement accuracy, it is characterised in that：The housing （100）Inside further include a waterproof construction（600）, it is arranged at housing air inlet（101）With vacuum pump（200）Between.

9. the environmental detection set according to claim 8 with high measurement accuracy, it is characterised in that：The waterproof construction （600）With at least one water-retaining structure（601）, the water-retaining structure（601）With housing（100）It is tightly connected.

10. the environmental detection set according to claim 1 with high measurement accuracy, it is characterised in that：The housing into Air port（101）Bottom and housing（100）Bottom surface is located at same level.