CN104132781A - Leak detector capable of improving accuracy of refrigerant leak detection result - Google Patents
Leak detector capable of improving accuracy of refrigerant leak detection result Download PDFInfo
- Publication number
- CN104132781A CN104132781A CN201410404676.7A CN201410404676A CN104132781A CN 104132781 A CN104132781 A CN 104132781A CN 201410404676 A CN201410404676 A CN 201410404676A CN 104132781 A CN104132781 A CN 104132781A
- Authority
- CN
- China
- Prior art keywords
- rifle head
- filtrator
- hole
- air
- extension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to the field of refrigerant leak detection, in particular to a leak detector capable of improving accuracy of a refrigerant leak detection result. The leak detector comprises a detection device, wherein the detection device comprises a handle and a gun head arranged at one end of the handle, a gun head filter is arranged at the end, far away from the handle, of the gun head, a leak sample collection hole is formed in the end face, making contact with an extension pipe, of the gun head filter, two reference airflow collecting holes are formed in the portion, between the leak sample collecting hole and the handle, of the side face of the gun head filter, the extension pipe is connected with the end, far away from the handle, of the gun head filter, and a middle through hole of the extension pipe is communicated with the leak sample collecting hole in the gun head filter. The gun head is lengthened due to the extension pipe, the situation that when the gun head stretches far into a packaging box, the leak sample colleting hole and the two reference airflow collecting holes may stretch into the packaging box at the same time, and consequently, a leak detector gives out a false alarm is avoided, and accuracy of the refrigerant leak detection result and production efficiency of enterprises are improved.
Description
Technical field
The present invention relates to secondary refrigerant leakage detection field, be specifically related to a kind of leak locator that improves coolant leakage testing result accuracy.
Background technology
The air conditioner inside producing in prior art mainly contains compressor, evaporator, condenser, the above-mentioned parts of connection and supplies the parts such as valve type that in the mobile pipeline of refrigerant reciprocation cycle between all parts and pilot piping, refrigerant flows to, above-mentioned part forms refrigeration system after assembling, and refrigerant is just placed in refrigeration system.Yet refrigerant can produce the problem of leaking in refrigeration system, the position of its leakage is mainly solder joint and the above-mentioned all parts itself that pipeline connects.So should whether exist coolant leakage problem to detect to refrigeration system before air conditioner dispatches from the factory.
Coolant leakage leak locator used in prior art generally comprises sniffer and analytic system, the front end of described sniffer is provided with rifle head, on described rifle head, be provided with one and reveal sample collection hole and two and gather hole with reference to air-flow, reveal sample collection hole and be positioned at two front ends that gather hole with reference to air-flow.During work, the front end of sniffer puts in the packing case of inspected object, and a leakage sample collection hole puts in packing case draws the sample gas of revealing, and two gather hole with reference to air-flow and contact the extraneous reference air-flow of absorption with extraneous air.The sample gas of sample collection hole absorption and the concentration difference between two reference air-flows that gather hole absorption with reference to air-flow are revealed in test macro analysis afterwards, and judgement has or not coolant leakage according to concentration difference.
In prior art, the rifle head length of coolant leakage leak locator used is shorter, in the course of the work, when rifle head puts in packing case, cross when dark, reveal sample collection hole and two and with reference to air-flow, gather hole and may put in packing case simultaneously, in this kind of situation, leak locator will false alarm.
Due to existing leak locator self design problem and employee's difference in operation, 1000 output of machine split run in cabinet of take are that example is calculated, as disqualification rate in checkout procedure is about 5%, the machine in cabinet of take is example, as the defective loom of hunting leak is again torn machine open and is checked, approximately take 20-30 minute, not containing checking the leak source time, so use existing leak locator can greatly reduce enterprise productivity.
Based on above description, for preventing that the rifle head of sniffer from putting in excessively dark caused leak locator false alarm in packing case, need badly and want a kind of new coolant leakage leak locator that can effectively avoid this maloperation.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of leak locator that improves coolant leakage testing result accuracy, this leak locator has effectively improved coolant leakage recall rate and coolant leakage assay accuracy, greatly reduces the problem due to lack of standardization the caused leak locator false alarm of manual operation.
The embodiment of the present invention is by the following technical solutions:
A kind of leak locator that improves coolant leakage testing result accuracy, comprise sniffer, described sniffer comprises handle and is arranged on the rifle head of described handle one end, described rifle head is rifle head filtrator away from one end of described handle, on the end face that described rifle head filtrator contacts with described extension, be provided with one and reveal sample collection hole, on rifle head filtrator side between described leakage sample collection hole and described handle, be provided with two and gather hole with reference to air-flow, described rifle head filtrator is connected with extension away from one end of described handle, the middle through hole of described extension is communicated with the leakage sample collection hole on described rifle head filtrator.
As preferably, described rifle head filtrator is connected with described extension by adapter sleeve, the described external diameter of at least part of rifle head filtrator and one end internal diameter of described adapter sleeve with reference to outside, air-flow collection hole is suitable, and the other end internal diameter of the external diameter of described extension and described adapter sleeve is suitable.
As preferably, described adapter sleeve is by least two-layer sub-connection cover nested forming successively from inside to outside, a wherein end face of all sub-connections covers.
As preferably, described extension is dip plane away from an end face of described rifle head filtrator.
As preferably, the angle of inclination of described dip plane is 30 ° to 60 °.
As preferably, described extension is provided with at least one air hole away from one end of described rifle head filtrator.
As preferably, described extension is provided with 4 groups of air holes that are arranged side by side away from one end of described rifle head filtrator, and every group has 2 air holes.
As preferably, described extension and described adapter sleeve form by the manufacture of PVC material.
As preferably, two described gathers hole with reference to air-flow and take the longitudinal axis of described rifle head filtrator on axis of symmetry is symmetricly set on described rifle head filtrator side.
As preferably, described rifle head inside is provided with sampling system and infrared sensor, described sampling system gathers hole with described leakage sample collection hole and two with reference to air-flow respectively and is communicated with, and described infrared sensor is revealed sample collection hole and drawn the sample gas revealed and two and gather the extraneous reference air-flow of hole absorption with reference to air-flow for controlling:
Described leak locator also comprises test macro, and described test macro is revealed the sample gas of sample collection hole absorption and the concentration difference between two reference air-flows that gather hole absorption with reference to air-flow for analyzing, and judgement has or not coolant leakage according to concentration difference.
The useful technique effect of the technical scheme that the embodiment of the present invention proposes is:
(1) leak locator of the raising coolant leakage testing result accuracy providing due to the application, comprise sniffer, described sniffer comprises handle and is arranged on the rifle head of described handle one end, described rifle head is rifle head filtrator away from one end of described handle, and described rifle head filtrator is connected with extension away from one end of described handle.Extension increases the length of rifle head, has avoided in packing case, crossing when dark when rifle head puts in, and reveals sample collection hole and two and gathers that hole may put in packing case and the generation of the situation of the leak locator false alarm causing with reference to air-flow simultaneously.So this leak locator has effectively improved coolant leakage recall rate and coolant leakage assay accuracy, greatly reduces the problem due to lack of standardization the caused leak locator false alarm of manual operation, has improved enterprises production efficiency.
(2) because described rifle head filtrator is connected with described extension by adapter sleeve, so that rifle head filtrator is more reliable with being connected of extension.
(3) because described extension is dip plane away from an end face of described rifle head filtrator, so can prevent that the poly-bag, packing material etc. of rifle head front end and box house in checkout procedure from contacting, and stops up thereby cause detecting air-flow.
(4), because described extension is provided with at least one air hole away from one end of described rifle head filtrator, so can strengthen the concentration of collection point sample collection, improve detection efficiency and accuracy.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during the embodiment of the present invention is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to the content of the embodiment of the present invention and these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the sniffer that provides of apparatus of the present invention embodiment;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1;
Fig. 3 is the extension that provides of apparatus of the present invention embodiment and the assembling plan view of adapter sleeve;
Fig. 4 be in Fig. 3 along " B-B " to cut-open view;
Fig. 5 is the extension that provides of apparatus of the present invention embodiment and the assembling left view of adapter sleeve.
In figure:
1, handle; 2, rifle head; 3, connecting line; 4, extension; 5, adapter sleeve;
11, pilot lamp; 12, button; 13, hook;
21, rifle head filtrator;
211, reveal sample collection hole; 212, with reference to air-flow, gather hole;
41, dip plane; 42, air hole;
51, the first sub-connection cover; 52, the second sub-connection cover; 53, the 3rd sub-connection cover.
Embodiment
For the technical scheme of technical matters that the present invention is solved, employing and the technique effect that reaches clearer, below in conjunction with accompanying drawing, the technical scheme of the embodiment of the present invention is described in further detail, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those skilled in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the leak locator leak locator that can improve coolant leakage testing result accuracy that the application provides comprises sniffer, described sniffer comprises handle 1 and is arranged on the rifle head 2 of described handle 1 one end, described rifle head 2 is rifle head filtrator 21 away from one end of described handle 1, as shown in Figure 2, on the end face that described rifle head filtrator 21 contacts with described extension 4, be provided with one and reveal sample collection hole 211.On rifle head filtrator 21 sides between described leakage sample collection hole 211 and described handle 1, be provided with two and gather hole 212 with reference to air-flow.Described rifle head filtrator 21 one end away from described handle 1 are connected with extension 4, and the middle through hole of described extension 4 is communicated with described leakage sample collection hole 211.
During work, described extension 4 and rifle head filtrator 21 put in the casing at described test sample place, described leakage sample collection hole 211 is positioned at box house, for drawing the sample gas of leakage, concrete, the sample gas of leakage through hole from described extension 4 flows into reveals sample collection hole 211; Two are positioned at casing outside with reference to air-flow collection hole 212, for drawing extraneous reference air-flow.
In the present embodiment, as preferred version, two described gathers hole 212 with reference to air-flow and take the longitudinal axis of described rifle head filtrator 21 on axis of symmetry is symmetricly set on described rifle head filtrator 21 sides.
In the application, because described rifle head filtrator 21 one end away from described handle 1 are connected with extension 4.Extension 4 increases the length of rifle head 1, has avoided in packing case, crossing when dark when rifle head 1 puts in, and reveals sample collection hole 211 and two and gathers that hole 212 may put in packing case and the generation of the situation of the leak locator false alarm causing with reference to air-flow simultaneously.So this leak locator has effectively improved coolant leakage recall rate and coolant leakage assay accuracy, greatly reduces the problem due to lack of standardization the caused leak locator false alarm of manual operation, has improved enterprises production efficiency.
In the present embodiment, the specification of described extension 4 is determined according to the specification of rifle head filtrator 21 and concrete environment for use, is preferably ∮ 4x80 ± 10mm.
In the present embodiment, as preferred version, described extension 4 is dip plane 41 away from an end face of described rifle head filtrator 21.This scheme is mainly and prevents that the poly-bag, packing material etc. of rifle head front end and box house in checkout procedure from contacting, and stops up thereby cause detecting air-flow.
As further preferred version, the angle of inclination of described dip plane 41 is designed to 45 ± 15 ° of i.e. arbitrarily angled from 30 ° to 60 °.
In the present embodiment, as another kind of preferred version, described extension 4 is provided with at least one air hole 42 away from one end of described rifle head filtrator 21.The Main Function of described air hole 42, for strengthening the concentration of collection point sample collection, improves detection efficiency and accuracy.
As preferably, described extension 4 is provided with 4 groups of air holes that are arranged side by side 42 away from one end of described rifle head filtrator 21, and every group has 2 air holes 42.The diameter of described air hole 42 is determined according to the diameter of extension 4, is preferably 2mm.
As preferred version, described extension 4 can be formed by the manufacture of PVC material.Certainly, the constituent material of described extension 4 is not limited to PVC material, can also be other material.
In the present embodiment, as preferred version, as shown in Figure 3, described rifle head filtrator 21 is connected with described extension 4 by adapter sleeve 5.Concrete, the described external diameter of at least part of rifle head filtrator 21 and one end internal diameter of described adapter sleeve 5 with reference to air-flow collection 212 outsides, hole is suitable, and the other end internal diameter of the external diameter of described extension 4 and described adapter sleeve 5 is suitable.During installation, described one end that gathers the described adapter sleeve 5 of at least part of rifle head filtrator 21 insertion in 212 outsides, hole with reference to air-flow, described extension 4 inserts the other end of described adapter sleeve 5.Adapter sleeve 5 makes rifle head filtrator 21 more reliable with being connected of extension 4.
In the present embodiment, as further preferred version, described adapter sleeve 5 overlaps from inside to outside nested forming successively by least two-layer sub-connection, a wherein end face of all sub-connections covers.Because extension 4 is different from the external diameter of rifle head filtrator 21, the two ends of adapter sleeve 5 coordinate with extension 4 and rifle head filtrator 21 respectively, so the two ends internal diameter of adapter sleeve 5 is different, if adapter sleeve 5 is designed to integrative-structure, increased the difficulty of processing of adapter sleeve 5, so adapter sleeve 5 is designed to overlap from inside to outside nested forming successively by least two-layer sub-connection.And use the adapter sleeve of this structure can be so that extension 4 and the more convenient assembling of adapter sleeve.
As preferred version, as shown in Fig. 4 to Fig. 5, described adapter sleeve 5 is by nested forming inside and outside three straton adapter sleeves, and three straton adapter sleeves are respectively and are positioned at outermost the first sub-connection cover 51, are nested in the first sub-connection and overlap the second sub-connection cover 52 of 51 inner sides and be nested in the 3rd sub-connection cover 53 that the second sub-connection is overlapped 52 inner sides.Such as, the specification of first sub-connection cover the 51, second sub-connection cover the 52 and the 3rd sub-connection cover 53 can be respectively ∮ 10x30mm, ∮ 8x10mm, ∮ 6x10mm.
As preferred version, described adapter sleeve 5 can be formed by the manufacture of PVC material.Certainly, the constituent material of described adapter sleeve 5 is not limited to PVC material, can also be other material.
In the present embodiment, in adopting between described adapter sleeve 5 and extension 4, accessory connects.Assemble sequence is respectively extension 4-the three sub-connection cover 53-the second sub-connection cover the 52-the first sub-connection cover 51.Concrete assembly method is as follows:
The first step: first extension 4 is inserted in the 3rd sub-connections cover 53, require to be seated more than insertion depth reaches 10mm simultaneously;
Second step: the assembly that previous step is assembled inserts in the second sub-connection cover 52, after requiring to be seated, the second sub-connection cover the 52 and the 3rd sub-connection is overlapped 53 end face;
The 3rd step: the assembly that previous step is assembled inserts in the first sub-connection cover 51, after requiring to be seated, second sub-connection cover the 52 and first sub-connection is overlapped 51 end face.
In the present embodiment, described rifle head 2 inside are provided with sampling system and infrared sensor, described sampling system gathers hole 212 with described leakage sample collection hole 211 and two with reference to air-flow respectively and is communicated with, and described infrared sensor is revealed sample collection hole 211 and drawn the sample gas revealed and two and gather the extraneous reference air-flow of hole 212 absorption with reference to air-flow for controlling.
Described leak locator also comprises test macro, described sampling system is delivered to test macro by revealing sample collection hole 211 by the sample gas of absorption and two reference gas streams of drawing with reference to air-flow collection hole 212, described test macro is revealed the sample gas of sample collection hole 211 absorptions and the concentration difference between two reference air-flows that gather hole 212 absorptions with reference to air-flow for analyzing, and judgement has or not coolant leakage according to concentration difference.
In the present embodiment, described test system and test system can be arranged in described sniffer, is directly connected with described sampling system, also can be arranged on described sniffer outside.When test macro is arranged on outside sniffer, by connecting line 3, be communicated with the sampling system in described sniffer.
As shown in Figure 1, as preferred version, be provided with the button 12 of pilot lamp 11 and a unlatching and/or closing function on described handle 1, described pilot lamp 11 and button 12 are preferably the upper surface that is arranged on described handle 1.When leak locator detects box house and has secondary refrigerant leakage, can report to the police by described pilot lamp 11.As further preferred version, the rear end of described handle 1 is provided with hook 13, by described hook 13, can easily detector be hung up.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious variations, readjust and substitute and can not depart from protection scope of the present invention.Therefore, although the present invention is described in further detail by above embodiment, the present invention is not limited only to above embodiment, in the situation that not departing from the present invention's design, can also comprise more other equivalent embodiment, and scope of the present invention is determined by appended claim scope.
Claims (10)
1. a leak locator that improves coolant leakage testing result accuracy, comprise sniffer, described sniffer comprises handle and is arranged on the rifle head of described handle one end, described rifle head is rifle head filtrator away from one end of described handle, on the end face that described rifle head filtrator contacts with described extension, be provided with one and reveal sample collection hole, on rifle head filtrator side between described leakage sample collection hole and described handle, be provided with two and gather hole with reference to air-flow, it is characterized in that, described rifle head filtrator is connected with extension away from one end of described handle, the middle through hole of described extension is communicated with the leakage sample collection hole on described rifle head filtrator.
2. the leak locator of raising coolant leakage testing result accuracy as claimed in claim 1, it is characterized in that, described rifle head filtrator is connected with described extension by adapter sleeve, the described external diameter of at least part of rifle head filtrator and one end internal diameter of described adapter sleeve with reference to outside, air-flow collection hole is suitable, and the other end internal diameter of the external diameter of described extension and described adapter sleeve is suitable.
3. the leak locator of raising coolant leakage testing result accuracy as claimed in claim 2, is characterized in that, described adapter sleeve overlaps from inside to outside nested forming successively by least two-layer sub-connection, a wherein end face of all sub-connections covers.
4. the leak locator of raising coolant leakage testing result accuracy as claimed in claim 1, is characterized in that, described extension is dip plane away from an end face of described rifle head filtrator.
5. the leak locator of raising coolant leakage testing result accuracy as claimed in claim 4, is characterized in that, the angle of inclination of described dip plane is 30 ° to 60 °.
6. the leak locator of raising coolant leakage testing result accuracy as claimed in claim 4, is characterized in that, described extension is provided with at least one air hole away from one end of described rifle head filtrator.
7. the leak locator of raising coolant leakage testing result accuracy as claimed in claim 6, is characterized in that, described extension is provided with 4 groups of air holes that are arranged side by side away from one end of described rifle head filtrator, and every group has 2 air holes.
8. the leak locator of raising coolant leakage testing result accuracy as claimed in claim 2, is characterized in that, described extension and described adapter sleeve form by the manufacture of PVC material.
9. the leak locator of raising coolant leakage testing result accuracy as claimed in claim 2, is characterized in that, two described gathers hole with reference to air-flow and take the longitudinal axis of described rifle head filtrator on axis of symmetry is symmetricly set on described rifle head filtrator side.
10. the leak locator of raising coolant leakage testing result accuracy as claimed in claim 3, it is characterized in that, described rifle head inside is provided with sampling system and infrared sensor, described sampling system gathers hole with described leakage sample collection hole and two with reference to air-flow respectively and is communicated with, and described infrared sensor is revealed sample collection hole and drawn the sample gas revealed and two and gather the extraneous reference air-flow of hole absorption with reference to air-flow for controlling:
Described leak locator also comprises test macro, and described test macro is revealed the sample gas of sample collection hole absorption and the concentration difference between two reference air-flows that gather hole absorption with reference to air-flow for analyzing, and judgement has or not coolant leakage according to concentration difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410404676.7A CN104132781A (en) | 2014-08-15 | 2014-08-15 | Leak detector capable of improving accuracy of refrigerant leak detection result |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410404676.7A CN104132781A (en) | 2014-08-15 | 2014-08-15 | Leak detector capable of improving accuracy of refrigerant leak detection result |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104132781A true CN104132781A (en) | 2014-11-05 |
Family
ID=51805549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410404676.7A Pending CN104132781A (en) | 2014-08-15 | 2014-08-15 | Leak detector capable of improving accuracy of refrigerant leak detection result |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104132781A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500916A (en) * | 2016-12-02 | 2017-03-15 | 广州供电局有限公司 | SF6Powered leak detector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2357806Y (en) * | 1999-03-31 | 2000-01-12 | 武汉市天虹智能仪表厂 | Portable smoke analysis gun |
| CN1479866A (en) * | 2000-12-13 | 2004-03-03 | 因菲康有限公司 | Method for detecting gas using infrared gas analyzer and gas analyzer suitable for carrying out said method |
| CN101263377A (en) * | 2005-09-13 | 2008-09-10 | 因菲康有限公司 | Leakage search appliance having a snifting probe |
| CN101939628A (en) * | 2008-02-08 | 2011-01-05 | 因菲康有限公司 | Sniffing leak detector according to the reference measurement principle |
| WO2011063587A1 (en) * | 2009-11-27 | 2011-06-03 | 无锡市四方制桶有限公司 | Detection device for detecting helium leak in steel barrel |
| CN204314015U (en) * | 2014-08-15 | 2015-05-06 | 珠海格力电器股份有限公司 | A kind of leak locator improving coolant leakage testing result accuracy |
-
2014
- 2014-08-15 CN CN201410404676.7A patent/CN104132781A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2357806Y (en) * | 1999-03-31 | 2000-01-12 | 武汉市天虹智能仪表厂 | Portable smoke analysis gun |
| CN1479866A (en) * | 2000-12-13 | 2004-03-03 | 因菲康有限公司 | Method for detecting gas using infrared gas analyzer and gas analyzer suitable for carrying out said method |
| CN101263377A (en) * | 2005-09-13 | 2008-09-10 | 因菲康有限公司 | Leakage search appliance having a snifting probe |
| CN101939628A (en) * | 2008-02-08 | 2011-01-05 | 因菲康有限公司 | Sniffing leak detector according to the reference measurement principle |
| WO2011063587A1 (en) * | 2009-11-27 | 2011-06-03 | 无锡市四方制桶有限公司 | Detection device for detecting helium leak in steel barrel |
| CN204314015U (en) * | 2014-08-15 | 2015-05-06 | 珠海格力电器股份有限公司 | A kind of leak locator improving coolant leakage testing result accuracy |
Non-Patent Citations (1)
| Title |
|---|
| INFICON: "《豆丁网》", 16 August 2011 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500916A (en) * | 2016-12-02 | 2017-03-15 | 广州供电局有限公司 | SF6Powered leak detector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101133310B (en) | Leak indicator comprising a sniffer probe | |
| CN107643149B (en) | A kind of cleanner bag leakage positioning and fault diagnosis system | |
| CN204314015U (en) | A kind of leak locator improving coolant leakage testing result accuracy | |
| CN206208858U (en) | The double-pump type gas-detecting device of multichannel rapid aeration | |
| CN104296943A (en) | Vacuum type helium detecting equipment and method thereof | |
| CN204387697U (en) | Pipeline gas leak detecting device | |
| CN106287241A (en) | A kind of detection device being accurately positioned pipeline leakage point | |
| CN104132781A (en) | Leak detector capable of improving accuracy of refrigerant leak detection result | |
| CN108644988B (en) | Air conditioner outdoor unit detection system | |
| CN111765386A (en) | Distributed real-time health monitoring system and method for pipeline structure | |
| ITMI20110132A1 (en) | GAS LEAK DETECTION DEVICE, PARTICULARLY FOR JOINTS OF TUBES AND THE LIKE. | |
| CN203231876U (en) | Glove leak detector applied to portable isolator | |
| CN103776596B (en) | A kind of vacuum leak detection bag | |
| CN206593815U (en) | A kind of tap high-low pressure test system | |
| CN202562713U (en) | Automatic detecting device for air impermeability/ air permeability of infusion apparatus | |
| CN207570735U (en) | A kind of annular leakage detection sensor | |
| EP3940362A1 (en) | Clamp for inspecting welds and robot using such clamp | |
| CN111059695A (en) | Omnibearing detection device and method for detecting refrigerant leakage of air conditioner | |
| CN104596707B (en) | Detect refrigeration system whether the method for permeability | |
| CN219177171U (en) | Detect outer formula monitoring assembly ring that natural gas pipeline junction leaked | |
| JP4448536B2 (en) | Glass dough leak detection method and apparatus for glass melting kiln | |
| CN110706369A (en) | Method for inspecting important machine room chamber of coal mine | |
| CN205748818U (en) | Detection device | |
| CN109580124A (en) | A kind of half body clothing leak detector | |
| CN208420318U (en) | A kind of differential pressure type pneumatic sealing test equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141105 |
|
| RJ01 | Rejection of invention patent application after publication |