CN202974595U - High-precision gas leak detection device - Google Patents
High-precision gas leak detection device Download PDFInfo
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- CN202974595U CN202974595U CN 201220570239 CN201220570239U CN202974595U CN 202974595 U CN202974595 U CN 202974595U CN 201220570239 CN201220570239 CN 201220570239 CN 201220570239 U CN201220570239 U CN 201220570239U CN 202974595 U CN202974595 U CN 202974595U
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Abstract
The utility model discloses a high-precision gas leak detection device. The high-precision gas leak detection device comprises a mixed gas source container, a detection pipe, an exhaust pipe, a gas pressure detection member, and a leak detector, wherein the mixed gas source container is used for holding leak detection gases and leak detection substances, a first end of the detection pipe is connected with the mixed gas source container and a second end of the detection pipe is suitable for being connected with an object to be detected, at least one of the mixed gas source container and the detection pipe is provided with a gas inlet valve, a first end of the exhaust pipe is connected with the detection pipe and located between the gas inlet valve and the second end of the detection pipe, the exhaust pipe is equipped with an exhaust valve, the gas pressure detection member is connected with a part of the detection pipe located between the gas inlet valve and he second end of the detection pipe, and the leak detector is suitable for being close to the object to be detected to detect the leak detection substances. The high-precision gas leak detection device of an embodiment of the utility model has the advantages of high detection precision, simple structure, convenient operation and capability of detecting leak points.
Description
Technical field
The utility model relates to the leak hunting technology field, in particular to a kind of high-precision gas leakage detection apparatus.
Background technology
The products such as water dispenser, air-conditioning, refrigerator need to seal leak detection before dispatching from the factory.In order to solve the problems such as conventional high-tension gas inspection false drop rate is high, technological process is many, some equipment adopt the method for gas inspection and brush foam to judge whether product leaks to product, but accuracy of detection is lower and can not detect leakage point.Also have some equipment to merge multiple leak hunting method in order to improve precision, but the structure of equipment is too complicated, operation is very loaded down with trivial details.
The utility model content
The utility model one of is intended to solve the problems of the technologies described above at least to a certain extent or provides at least a kind of useful business to select.For this reason, a purpose of the present utility model be to propose a kind of accuracy of detection high, can detect leakage point, simple in structure, easy to operate high-precision gas leakage detection apparatus.
For achieving the above object, first aspect of the present utility model proposes a kind of high-precision gas leakage detection apparatus, and described high-precision gas leakage detection apparatus comprises: combination gas source container, described combination gas source container are used for holding search gas and leak detection material; Detector tube, the first end of described detector tube are connected with described combination gas source container and the second end of described detector tube is suitable for being connected with to be checked, and at least one in described combination gas source container and described detector tube is provided with gas admittance valve; Gas outlet, the first end of described gas outlet be connected with described detector tube and the first end of described gas outlet between the second end of described gas admittance valve and described detector tube, described gas outlet is provided with vent valve; The air pressure detection piece, the part between the second end of described gas admittance valve and described detector tube of described air pressure detection piece and described detector tube is connected; And sniffer, described sniffer be suitable for contiguous described to be checked for detection of described leak detection material.
Adopt gas procuratorial organ formula that described to be checked is hunted leak according to high-precision gas leakage detection apparatus of the present utility model, avoided the various inconvenience in traditional water inspection equipment.And described high-precision gas leakage detection apparatus is provided with described sniffer and is used for holding the described combination gas source container of described search gas and described leak detection material, thereby can utilize described sniffer to carry out determining of more high-precision leak detection and leakage point to described to be checked.And the structure of described high-precision gas leakage detection apparatus is very simple, and the operation of utilizing described high-precision gas leakage detection apparatus to hunt leak is less, processing ease.Therefore, according to high-precision gas leakage detection apparatus of the present utility model have accuracy of detection high, can detect leakage point, the advantage such as simple in structure, easy to operate.
In addition, can also have following additional technical characterictic according to high-precision gas leakage detection apparatus of the present utility model:
Described combination gas source container comprises: the search gas container, and described search gas container is used for holding described search gas; The leak detection material container, described leak detection material container is used for holding described leak detection material; And mixer, described mixer is connected with the first end of described search gas container, described leak detection material container and described detector tube respectively.Described search gas and described leak detection material separately can be stored like this.
Has hybrid chamber in described mixer and described hybrid chamber has the first import, the second import and outlet, wherein said the first import is connected with described search gas container by the first draft tube, described the second import is connected with described leak detection material container by the second draft tube, and described outlet is connected with the first end of described detector tube.Can realize thus when described to be checked is hunted leak, enter described detector tube after described search gas in described search gas container and the described leak detection material in described leak detection material container mix in described mixer, and described mixer has advantages of simple structure and simple.
Described mixer is tee pipe fitting, and the first arm of described tee pipe fitting is connected with described search gas container, and the second arm of described tee pipe fitting is connected with described leak detection material container, and the 3rd arm of described tee pipe fitting is connected with the first end of described detector tube.Can realize in another way thus when described to be checked is hunted leak, enter described detector tube after the described search gas in described search gas container and the described leak detection material in described leak detection material container mix in described mixer.
Described gas admittance valve comprises search gas valve and leak detection material valve, and described search gas valve is located on described the first draft tube or described the first arm, and described leak detection material valve is located on described the second draft tube or described the second arm.Can utilize so break-make that described search gas valve controls described the first draft tube or described the first arm allowing or to hinder described search gas by described the first draft tube or described the first arm, and can utilize break-make that described leak detection material valve controls described the second draft tube or described the second arm with permission or hinder described leak detection material by described the second draft tube or described the second arm.
Described gas admittance valve comprises search gas valve, leak detection material valve and mixes air valve, described search gas valve is located on described the first draft tube or described the first arm, described leak detection material valve is located on described the second draft tube or described the second arm, and described mixing air valve is located on described detector tube.So not only can utilize break-make that described search gas valve controls described the first draft tube or described the first arm allowing or to hinder described search gas by described the first draft tube or described the first arm and utilize break-make that described leak detection material valve controls described the second draft tube or described the second arm allowing or to hinder described leak detection material by described the second draft tube or described the second arm, and the break-make that can utilize the described detector tube of described mixing Air Valve Control is passed through described detector tube with the combination gas that allows or hinder described search gas and described leak detection material.
Described the second arm is provided with retaining valve.Can make thus the performance of described high-precision gas leakage detection apparatus more stable.
Described tee pipe fitting also comprises Venturi tube, and the first end of described Venturi tube is connected with described the first arm and the second end of described Venturi tube is connected with described the 3rd arm, and described the second arm is connected with the throat of described Venturi tube.Can save cost thus.
Described air pressure detection piece comprises: pressure transducer, described pressure transducer are located on described detector tube and between the second end of described gas admittance valve and described detector tube; With air pressure leak detection unit, described air pressure leak detection unit is connected with described pressure transducer for the detection signal of described pressure transducer is analyzed.Can realize thus described air pressure detection piece to the measuring ability of described detector tube internal pressure, and operating personnel can observe testing result by described pressure transducer.
Described leak detection material is halogen gas or helium.Can further improve the accuracy of detection of described high-precision gas leakage detection apparatus like this.
Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the structural representation according to the high-precision gas leakage detection apparatus of the utility model embodiment;
Fig. 2 is the structural representation according to the mixer of the high-precision gas leakage detection apparatus of the utility model embodiment;
Fig. 3 is the structural representation according to the mixer of the high-precision gas leakage detection apparatus of another embodiment of the utility model; With
Fig. 4 is the structural representation according to the high-precision gas leakage detection apparatus of another embodiment of the utility model.With
Embodiment
The below describes embodiment of the present utility model in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, be intended to for explanation the utility model, and can not be interpreted as restriction of the present utility model.
in description of the present utility model, it will be appreciated that, term " " center ", " vertically ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more, unless clear and definite restriction is separately arranged.
In the utility model, unless clear and definite regulation and restriction are separately arranged, broad understanding should be done in the terms such as term " installation ", " being connected ", " connection ", " fixing ", for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also to be electrically connected to; Can be directly to be connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
In the utility model, unless clear and definite regulation and restriction are separately arranged, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, can comprise that also the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that the First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that the First Characteristic level height is less than Second Characteristic.
Below with reference to the high-precision gas leakage detection apparatus 1 of Fig. 1-Fig. 4 description according to the utility model embodiment.As Figure 1-Figure 4, the high-precision gas leakage detection apparatus 1 according to the utility model embodiment comprises combination gas source container 100, detector tube 200, gas outlet 300, air pressure detection piece 400 and sniffer 500.
Combination gas source container 100 is used for holding search gas and leak detection material.The first end 210 of detector tube 200 is connected with combination gas source container 100 and the second end 220 of detector tube 200 is suitable for being connected with to be checked, at least one in combination gas source container 100 and detector tube 200 is provided with described gas admittance valve (not shown, the back will be described in detail described gas admittance valve).The first end 310 of gas outlet 300 be connected with detector tube 200 and the first end 310 of gas outlet 300 between the second end 220 of described gas admittance valve and detector tube 200, gas outlet 300 is provided with vent valve 330.In other words, the part between the second end 220 of described gas admittance valve and detector tube 200 of the first end 310 of gas outlet 300 and detector tube 200 is connected.The part between the second end 220 of described gas admittance valve and detector tube 200 of air pressure detection piece 400 and detector tube 200 is connected.That is to say, air pressure detection piece 400 be connected with detector tube 200 and air pressure detection piece 400 between the second end 220 of described gas admittance valve and detector tube 200.Sniffer 500 be suitable for contiguous described to be checked for detection of described leak detection material.
The course of work according to the high-precision gas leakage detection apparatus 1 of the utility model embodiment is described below.To be checked the second end 220 with detector tube 200 is tightly connected, open described gas admittance valve and close vent valve 330, the described search gas in combination gas source container 100 and described leak detection material enter detector tube 200 and enter described to be checked by the second end 220 of detector tube 200.Close described gas admittance valve, the pressure that utilizes air pressure detection piece 400 to detect in detector tube 200 changes, therefore because detector tube 200 is connected with described to be checked sealing, closes pressure in the rear detector tube 200 of described gas admittance valve and vent valve 330 and equal pressure in described to be checked.Observe the pressure variation that air pressure detection piece 400 shows, judge that when the pressure significant change in detector tube 200 described to be checked exists leakage, when detector tube 200 internal pressures during without significant change, with sniffer 500 press close to described to be checked so that described to be checked is hunted leak, thereby judge further whether described to be checked exist trickle leakage.There is leakage in 500 pairs of described to be checked positions of detecting of sniffer when sniffer 500 detects described leak detection material, and there is not leakage in 500 pairs of described to be checked positions of detecting of sniffer when sniffer 500 can not detect described leak detection material.
Adopt gas procuratorial organ formula that described to be checked is hunted leak according to the high-precision gas leakage detection apparatus 1 of the utility model embodiment, avoided the various inconvenience in traditional water inspection equipment.And high-precision gas leakage detection apparatus 1 is provided with sniffer 500 and is used for holding the combination gas source container 100 of described search gas and described leak detection material, thereby can utilize 500 pairs described to be checked of sniffer to carry out determining of more high-precision leak detection and leakage point.And the structure of high-precision gas leakage detection apparatus 1 is very simple, and the operation of utilizing high-precision gas leakage detection apparatus 1 to hunt leak is less, processing ease.Therefore, according to the high-precision gas leakage detection apparatus 1 of the utility model embodiment have accuracy of detection high, can detect leakage point, the advantage such as simple in structure, easy to operate.
Fig. 1 and Fig. 4 show the high-precision gas leakage detection apparatus 1 according to a specific embodiment of the utility model.As shown in Figure 1 and Figure 4, combination gas source container 100 can comprise search gas container 110, leak detection material container 120 and mixer 600.Search gas container 110 can be used for holding described search gas.Leak detection material container 120 can be used for holding described leak detection material.Mixer 600 can be connected with the first end 210 of search gas container 110, leak detection material container 120 and detector tube 200 respectively.Described search gas can be stored in search gas container 110 like this, and described leak detection material is stored in leak detection material container 120, when described to be checked was hunted leak, described search gas and described leak detection material entered detector tube 200 after the interior mixing of mixer 600.That is to say, by search gas container 110, leak detection material container 120 and mixer 600 are set, described search gas and described leak detection material separately can be stored.
Particularly, mixer 600 is interior can have hybrid chamber 610 and hybrid chamber 610 can have the first import 611, the second import 612 and export 613, wherein the first import 611 can be connected with search gas container 110 by the first draft tube 700, the second import 612 can be connected with leak detection material container 120 by the second draft tube 800, and outlet 613 can be connected with the first end 210 of detector tube 200.Described search gas in search gas container 110 can enter hybrid chamber 610 by the first draft tube 700 and the first import 611 successively, described leak detection material in leak detection material container 120 can enter hybrid chamber 610 by the second draft tube 800 and the second import 612 successively, and described search gas and described leak detection material can enter detector tube 200 by exporting 613 after the interior mixing of hybrid chamber 610.Can realize thus when described to be checked is hunted leak, described leak detection material in described search gas in search gas container 110 and leak detection material container 120 enters detector tube 200 after the interior mixing of mixer 600, and mixer 600 has advantages of simple structure and simple.
Need is that the first draft tube 700 and the second draft tube 800 are the part of combination gas source container 100 with understanding.
Advantageously, as shown in Figure 4, described gas admittance valve can comprise search gas valve 710 and leak detection material valve 810, and search gas valve 710 can be located on the first draft tube 700, and leak detection material valve 810 is located on the second draft tube 800.By search gas valve 710 being set on the first draft tube 700 and leak detection material valve 810 being set on the second draft tube 800, can utilize break-make that search gas valve 710 controls the first draft tube 700 allowing or to hinder described search gas by the first draft tube 700, and can utilize leak detection material valve 810 to control the break-make of the second draft tube 800 to allow or to hinder described leak detection material by the second draft tube 800.
More advantageously, as shown in Figure 1, described gas admittance valve can comprise search gas valve 710, leak detection material valve 810 and mix air valve 230, search gas valve 710 can be located on the first draft tube 700, leak detection material valve 810 can be located on the second draft tube 800, mixes air valve 230 and can be located on detector tube 200.So not only can utilize break-make that search gas valve 710 controls the first draft tube 700 allowing or to hinder described search gas by the first draft tube 700 and utilize break-make that leak detection material valve 810 controls the second draft tube 800 allowing or to hinder described leak detection material by the second draft tube 800, and can utilize mix break-make that air valve 230 controls detector tubes 200 with the combination gas that allows or hinder described search gas and described leak detection material by detector tube 200.
Described gas admittance valve also can include only one and be located at mixing air valve 230 on detector tube 200 controlling the break-make of detector tube 200, thus allow or the combination gas that hinders described search gas and described leak detection material by detector tube 200.
Fig. 2 and Fig. 3 show the high-precision gas leakage detection apparatus 1 according to an embodiment of the utility model.As shown in Figures 2 and 3, mixer 600 can be tee pipe fitting, the first arm 620 of described tee pipe fitting can be connected with search gas container 110, the second arm 630 of described tee pipe fitting can be connected with leak detection material container 120, and the 3rd arm 640 of described tee pipe fitting can be connected with the first end 210 of detector tube 200.Described search gas in search gas container 110 can enter the 3rd arm 640 by the first arm 620, described leak detection material in leak detection material container 120 can enter the 3rd arm 640 by the second arm 630, and described search gas and described leak detection material enter detector tube 200 after the 3rd interior mixing of arm 640.Can realize in another way thus when described to be checked is hunted leak, the described leak detection material in the described search gas in search gas container 110 and leak detection material container 120 enters detector tube 200 after the interior mixing of mixer 600.
Advantageously, described gas admittance valve can comprise search gas valve 710 and leak detection material valve 810, and search gas valve 710 can be located on the first arm 620, and leak detection material valve 810 can be located on the second arm 630.By search gas valve 710 being set on the first arm 620 and leak detection material valve 810 being set on the second arm 630, can utilize break-make that search gas valve 710 controls the first arms 620 allowing or to hinder described search gas by the first arm 620, and can utilize leak detection material valve 810 to control the break-make of the second arms 630 to allow or to hinder described leak detection material by the second arm 630.
More advantageously, described gas admittance valve can comprise search gas valve 710, leak detection material valve 810 and mix air valve 230, search gas valve 710 can be located on the first arm 620, and leak detection material valve 810 can be located on the second arm 630, mixes air valve 230 and is located on detector tube 200.So not only can utilize break-make that search gas valve 710 controls the first arms 620 allowing or to hinder described search gas by the first arm 620 and utilize break-make that leak detection material valve 810 controls the second arms 630 allowing or to hinder described leak detection material by the second arm 630, and can utilize mix break-make that air valve 230 controls detector tubes 200 with the combination gas that allows or hinder described search gas and described leak detection material by detector tube 200.
Described gas admittance valve also can include only one and be located at mixing air valve 230 on detector tube 200 controlling the break-make of detector tube 200, thereby the combination gas that can allow or hinder described search gas and described leak detection material is by detector tube 200.
As shown in Figure 2, can be provided with retaining valve 631 on the second arm 630.Due to the pressure of the described search gas in search gas container 110 pressure higher than the described leak detection material in leak detection material container 120, can prevent that by retaining valve 631 is set described search gas from entering leak detection material container 120 by the second arm 630 on the second arm 630, thereby can make the performance of high-precision gas leakage detection apparatus 1 more stable.
Alternatively, as shown in Figure 3, described tee pipe fitting can also comprise Venturi tube 650, the first end 651 of Venturi tube 650 can be connected with the first arm 620 and the second end 652 of Venturi tube 650 can be connected with the 3rd arm 640, and the second arm 630 can be connected with the throat of Venturi tube 650.Wherein the throat of Venturi tube 650 refers to the most carefully locating of Venturi tube 650, namely the low pressure place of Venturi tube 650.Can play the effect of decompression of damming to the described search gas in the first arm 620 by Venturi tube 650 is set, thereby can save cost.
Advantageously, the part of the contiguous Venturi tube 650 of the second arm 630 can be for round table-like, and the xsect of the described part of the second arm 630 can reduce towards the direction of contiguous Venturi tube 650.That is to say, the xsect of the described round table-like part of the second arm 630 is reduced gradually by leak detection material container 120 to Venturi tube 650.Can play the effect of decompression of damming to the described leak detection material in the second arm 630 thus, thereby can further save cost.
Fig. 1 and Fig. 4 show the high-precision gas leakage detection apparatus 1 according to an example of the utility model.As shown in Figure 1 and Figure 4, air pressure detection piece 400 can comprise pressure transducer 410 and air pressure leak detection unit 420.Pressure transducer 410 can be located on detector tube 200 and pressure transducer 410 can be between the second end 220 of described gas admittance valve and detector tube 200.That is to say, pressure transducer 410 can be connected with the part between the second end 220 of described gas admittance valve and detector tube 200 of detector tube 200.Air pressure leak detection unit 420 can be connected with pressure transducer 410 and be used for the detection signal of pressure transducer 410 is analyzed.Utilize described to be checked when hunting leak of 1 pair of high-precision gas leakage detection apparatus, pressure transducer 410 detects the pressure in detector tubes 200 and described detection signal is transferred to air pressure leak detection unit 420, and the described detection signal in air pressure 420 pairs of unit of leak detection carries out after analytical calculation, result being presented on pressure transducer 410.Can realize thus the measuring ability of 400 pairs of detector tube 200 internal pressures of air pressure detection piece, and operating personnel can observe testing result by pressure transducer 410.
Alternatively, described leak detection material can be halogen gas or helium.Correspondingly, sniffer 500 can be halogen leak detector or helium leak check instrument.Can further improve the accuracy of detection of high-precision gas leakage detection apparatus 1 thus.Wherein, described halogen can be with storage in liquid in leak detection material container 120, and described halogen also can be stored in leak detection material container 120 with compressed gaseous.
The method of hunting leak according to the high-precision gas leakage detection apparatus 1 of the utility model above-described embodiment according to the utilization of the utility model embodiment is described below, and described method comprises:
A) with on to be checked the second end 220 that is connected to detector tube 200, then open described gas admittance valve and close vent valve 330 so that with in described to be checked of the search gas in combination gas source container 100 and leak detection material inputs; With
B) close described gas admittance valve, utilize air pressure detection piece 400 to detect the pressure of detector tube 200.Therefore because detector tube 200 is connected with described to be checked sealing, closes pressure in the rear detector tube 200 of described gas admittance valve and vent valve 330 and equal pressure in described to be checked.If the pressure of detector tube 200 changes, described to be checked exists leakage point, if the pressure of detector tube 200 is constant, utilizes 500 pairs described to be checked of sniffer to hunt leak.
Adopt the mode of gas inspection that described to be checked is hunted leak according to the method that high-precision gas leakage detection apparatus 1 is hunted leak of utilizing of the utility model embodiment, avoided the various inconvenience in traditional water detecting method.And the combination gas of described leak hunting method to the described parts described search gas of input to be checked and described leak detection material, thereby can after described parts to be checked being carried out the air pressure detection, can also utilize 500 pairs of described parts to be checked of sniffer to carry out accurate the detection and definite leak position more.Therefore, according to the gases at high pressure element leak hunting method of the utility model embodiment have accuracy of detection high, can detect the leak position, to implement difficulty low, simple operation and other advantages.
According to the high-precision gas leakage detection apparatus 1 of the utility model embodiment have accuracy of detection high, can detect leak position, the advantage such as simple in structure, easy to operate.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although the above has illustrated and has described embodiment of the present utility model, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art is not in the situation that break away from principle of the present utility model and aim can change above-described embodiment, modification, replacement and modification in scope of the present utility model.
Claims (10)
1. a high-precision gas leakage detection apparatus, is characterized in that, comprising:
Combination gas source container, described combination gas source container are used for holding search gas and leak detection material;
Detector tube, the first end of described detector tube are connected with described combination gas source container and the second end of described detector tube is suitable for being connected with to be checked, and at least one in described combination gas source container and described detector tube is provided with gas admittance valve;
Gas outlet, the first end of described gas outlet be connected with described detector tube and the first end of described gas outlet between the second end of described gas admittance valve and described detector tube, described gas outlet is provided with vent valve;
The air pressure detection piece, the part between the second end of described gas admittance valve and described detector tube of described air pressure detection piece and described detector tube is connected; With
Sniffer, described sniffer be suitable for contiguous described to be checked for detection of described leak detection material.
2. high-precision gas leakage detection apparatus according to claim 1, is characterized in that, described combination gas source container comprises:
The search gas container, described search gas container is used for holding described search gas;
The leak detection material container, described leak detection material container is used for holding described leak detection material; With
Mixer, described mixer are connected with the first end of described search gas container, described leak detection material container and described detector tube respectively.
3. high-precision gas leakage detection apparatus according to claim 2, it is characterized in that, has hybrid chamber in described mixer and described hybrid chamber has the first import, the second import and outlet, wherein said the first import is connected with described search gas container by the first draft tube, described the second import is connected with described leak detection material container by the second draft tube, and described outlet is connected with the first end of described detector tube.
4. high-precision gas leakage detection apparatus according to claim 2, it is characterized in that, described mixer is tee pipe fitting, the first arm of described tee pipe fitting is connected with described search gas container, the second arm of described tee pipe fitting is connected with described leak detection material container, and the 3rd arm of described tee pipe fitting is connected with the first end of described detector tube.
5. according to claim 3 or 4 described high-precision gas leakage detection apparatus, it is characterized in that, described gas admittance valve comprises search gas valve and leak detection material valve, described search gas valve is located on described the first draft tube or described the first arm, and described leak detection material valve is located on described the second draft tube or described the second arm.
6. according to claim 3 or 4 described high-precision gas leakage detection apparatus, it is characterized in that, described gas admittance valve comprises search gas valve, leak detection material valve and mixes air valve, described search gas valve is located on described the first draft tube or described the first arm, described leak detection material valve is located on described the second draft tube or described the second arm, and described mixing air valve is located on described detector tube.
7. high-precision gas leakage detection apparatus according to claim 4, is characterized in that, described the second arm is provided with retaining valve.
8. high-precision gas leakage detection apparatus according to claim 4, it is characterized in that, described tee pipe fitting also comprises Venturi tube, the first end of described Venturi tube is connected with described the first arm and the second end of described Venturi tube is connected with described the 3rd arm, and described the second arm is connected with the throat of described Venturi tube.
9. high-precision gas leakage detection apparatus according to claim 1, is characterized in that, described air pressure detection piece comprises:
Pressure transducer, described pressure transducer are located on described detector tube and between the second end of described gas admittance valve and described detector tube; With
Air pressure leak detection unit, described air pressure leak detection unit is connected with described pressure transducer for the detection signal of described pressure transducer is analyzed.
10. high-precision gas leakage detection apparatus according to claim 1, is characterized in that, described leak detection material is halogen gas or helium.
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| CN 201220570239 CN202974595U (en) | 2012-10-31 | 2012-10-31 | High-precision gas leak detection device |
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| CN 201220570239 CN202974595U (en) | 2012-10-31 | 2012-10-31 | High-precision gas leak detection device |
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| CN106556707A (en) * | 2015-09-28 | 2017-04-05 | 中国辐射防护研究院 | A kind of full-automatic halogen gas measurement apparatus |
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2012
- 2012-10-31 CN CN 201220570239 patent/CN202974595U/en not_active Expired - Fee Related
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| CN105363296A (en) * | 2014-08-13 | 2016-03-02 | 中冶宝钢技术服务有限公司 | A leak detection device of a bag dust collector and a leak detection method thereof |
| CN104568335A (en) * | 2014-12-18 | 2015-04-29 | 四川安东油气工程技术服务有限公司 | Helium and nitrogen mixing device for high pressure gas leak detection |
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