CN208799901U - A kind of partial flow filter for leak detector - Google Patents
A kind of partial flow filter for leak detector Download PDFInfo
- Publication number
- CN208799901U CN208799901U CN201820923950.5U CN201820923950U CN208799901U CN 208799901 U CN208799901 U CN 208799901U CN 201820923950 U CN201820923950 U CN 201820923950U CN 208799901 U CN208799901 U CN 208799901U
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- refrigerant
- air inlet
- shell
- gas outlet
- diversion pipe
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Abstract
The utility model belongs to refrigerant detection device field, propose a kind of partial flow filter for leak detector, comprising: shell, filtering material and diversion pipe, refrigerant air inlet is fixedly installed in the top of the shell, refrigerant gas outlet is fixedly installed in the bottom of the shell, and the bottom of the shell opens up air inlet；The filtering material is set to enclosure interior；The diversion pipe connection refrigerant air inlet and refrigerant gas outlet, and filter cotton is set at refrigerant gas outlet, stomata is opened up on the tube wall on the diversion pipe top.After air inlet entrance, impurity is filtered out gas around measured workpiece by filtering material, then mixes with cold media gas and flows out together from refrigerant gas outlet.Refrigerant after filtering becomes pure, so that leak detection process be made not interfered by the impure gas in scene, keeps the precision of measurement result higher, and reliability is higher, and reduces the cost that detection is repeated caused by erroneous judgement.
Description
Technical field
The utility model relates to refrigerant detection device field, in particular to a kind of partial flow filter for leak detector.
Background technique
Leak detector is the instrument for detecting pipeline or liquid or gas leakage in container, detects the inspection of the position of micro- gas leakage body
Leakage instrument sensitivity requirement is high, and the pervious leak test for general workpiece mostly uses water seaoning or suds spray coating method,
Differentiated workpiece with the presence or absence of leakage according to the range estimation of tester.The size of leakage depends on the subjective judgement of tester, so
It is difficult to eliminate influence of the human factor to test result, while also determining that it can not quantitatively measure the slip of workpiece,
Present micro- leakage leak detector mostly uses microelectronics and semiconductor transducer, and testing result is more sensitive accurate, the condition of leak detection
It is more relatively high.
Existing leak detector is directly to be filled with refrigerant, this will lead to device can inhale simultaneously during sucking cold media gas
Enter non-detection refrigerant, such as the moisture in air, existing paint, alcohol, diluent around measured workpiece such as cabinet leakage detection
Ingredient, these mixed impurity will affect the data result that detection device obtains, it is made abnormal interference alarm, or even erroneous judgement occur
The problem of leakage, causes product that unpacking is needed to detect again, seriously affects working efficiency.A kind of device is needed to examine in refrigerant at present
Mixed contaminant filter is fallen before surveying, to improve the accuracy rate and precision of testing result.
Utility model content
The utility model proposes a kind of partial flow filters for leak detector, before refrigerant enters detection device to its into
Row pretreatment, filters out impurity therein, improves the accuracy rate and precision of testing result.
The technical solution of the utility model is achieved in that
The top of a kind of partial flow filter for leak detector, including shell, filtering material and diversion pipe, the shell is solid
Refrigerant air inlet is set surely, and refrigerant gas outlet is fixedly installed in the bottom of the shell, and the bottom of the shell opens up air inlet
Mouthful；The filtering material is set to enclosure interior；The diversion pipe connection refrigerant air inlet and refrigerant gas outlet, and go out in refrigerant
Filter cotton is set at port, opens up stomata on the tube wall on the diversion pipe top.
Further, porous barrier is arranged in the bottom and top of the filtering material, and the porous barrier is fixed with shell
Connection, gas free air space is surrounded between the porous barrier and inner walls, the stomata on the diversion pipe be located at top
Gas free air space connection.
Further, one layer of netted liner plate is accompanied between the filtering material and porous barrier.
Further, the diversion pipe is passed through from filtering material center, and the refrigerant air inlet is located at the case top
Center, the refrigerant gas outlet is located at the center of the housing bottom, and the air inlet is opened in refrigerant gas outlet
Two sides.
Further, the filtering material is granular activated carbon, and the diameter of the granular activated carbon is 0.5~0.8mm.
Further, the filter cotton is felt.
Further, the refrigerant air inlet, refrigerant gas outlet are connected through a screw thread mode with shell and fix, described cold
Anaerobic adhesive is filled in the gap formed between matchmaker's air inlet, refrigerant gas outlet and shell.
The utility model carries out the interference ingredient such as paint, alcohol, diluent present in measured workpiece surrounding air
Filtering, then with cold media gas after filter cotton filters, most the filter cotton through exit flows out the to be checked of ingredient cleaning afterwards
Refrigerant is surveyed, keeps the precision of measurement result higher, reliability is higher, reduces and judges by accident and reduced caused by erroneous judgement caused by interference gas
Repeat the cost of detection.
Detailed description of the invention
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, the accompanying drawings in the following description is 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, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of partial flow filter structural representation for leak detector that the utility model certain embodiments provide
Figure；
Fig. 2 is the portion the A enlarged drawing of Fig. 1
In figure, 1, shell；2, filtering material；3, diversion pipe；4, refrigerant air inlet；5, refrigerant gas outlet；6, air inlet
Mouthful；7, filter cotton；8, stomata；9, porous barrier；10, netted liner plate.
Specific embodiment
The utility model is described below based on embodiment, but the utility model is not restricted to these implementations
Example.In order to avoid obscuring the essence of the utility model, there is no narrations in detail for well known method, process, process, element.
In addition, it should be understood by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and
What attached drawing was not necessarily drawn to scale.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, be " including but not limited to " contains
Justice.
Directional terminology "upper" herein, "lower" be the top based on attached positional relationship shown in FIG. 1, in Fig. 1 be it is upper, under
Under portion is, it is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
This application provides a kind of partial flow filters for leak detector, as shown in Figure 1, comprising: shell 1, filtering material 2
With diversion pipe 3, refrigerant air inlet 4 is fixedly installed in the top of the shell 1, and refrigerant outlet is fixedly installed in the bottom of the shell 1
Mouth 5, the bottom of the shell 1 opens up air inlet 6；The filtering material 2 is set to inside shell 1；The diversion pipe 3 connects
Logical refrigerant air inlet 4 and refrigerant gas outlet 5, and filter cotton 7, the tube wall on 3 top of diversion pipe are set at refrigerant gas outlet 5
On open up stomata 8, as shown in Figure 2.
The external tracheae equipped with refrigerant of refrigerant air inlet 4, refrigerant are entered by refrigerant air inlet 4, and measured workpiece such as cabinet is looked into
The ingredients such as existing paint, alcohol, diluent around leakage, these ingredients are entered with air by air inlet 6, through filter material
After 2 filtering of material, mixes into diversion pipe 3 with cold media gas and flowed out by refrigerant gas outlet 5.
Further, as shown in Figure 1, 2, porous barrier 9 is arranged in the bottom and top of the filtering material 2, described porous
Partition 9 is fixedly connected with shell 1, and gas free air space, the diversion pipe 3 are surrounded between 1 inner wall of the porous barrier 9 and shell
On stomata 8 be connected to superposed gas free air space.
Air is introduced into the gas free air space positioned at lower part, and the gas for then entering top through filtering material 2 circulates empty
Between, diversion pipe 3 is finally entered by stomata 8.
Several through-holes are opened up on porous barrier 9, allow the flow to pass through.Porous barrier 9 can also fix filtering material 2
Position.Further, the packed height of filtering material 2 is 14~16mm, preferably 15mm.
Further, one layer of netted liner plate 10 is accompanied between the filtering material 2 and porous barrier 9.Netted liner plate 10
Filtering material 2 can be enable sufficiently to filter out the impurity in air the further current limliting of air.Netted liner plate 10 has net
The liner plate of shape structure, the material of liner plate can be metal, plastics or ceramics.
In a specific embodiment, the diversion pipe 3 is passed through from 2 center of filtering material, the refrigerant air inlet 4
In the center at 1 top of shell, the refrigerant gas outlet 5 is located at the center of 1 bottom of shell, the air inlet 6
It is opened in the two sides of refrigerant gas outlet 5.
Specifically, refrigerant air inlet 4 is extended to form upwards by 1 center of top of shell.Refrigerant gas outlet 5 is by 1 bottom of shell
Portion center extends downward to be formed.
Preferably, the filtering material 2 is granular activated carbon, and the diameter of the granular activated carbon is 0.5~0.8mm.Such as
This, can effectively filter out the impurity in air.Preferably, the diameter of the granular activated carbon is 0.6mm.
Further, the filter cotton 7 is felt.Dust impurity in 7 main filtration air-flow of filter cotton.It is specific at one
Embodiment in, the position of filter cotton 7 is lower than air inlet 6.
Specifically, the refrigerant air inlet 4, refrigerant gas outlet 5 are connected through a screw thread mode with shell 1 and fix, described
Anaerobic adhesive is filled in the gap formed between refrigerant air inlet 4, refrigerant gas outlet 5 and shell 1.The diversion pipe 3 and refrigerant into
Port 4, refrigerant gas outlet 5 junction guarantee the leakproofness of device using glue gasket.
After cold media gas is entered by refrigerant air inlet 4, flowed along diversion pipe 3 to refrigerant gas outlet 5, in refrigerant gas outlet 5
It nearby filters through filter cotton 7, is flowed out by refrigerant gas outlet 5, and then flow detection position, since refrigerant gas outlet 5 is constantly in
Negative pressure state, therefore, the gas around detection position can be sucked from air inlet 6, the porous barrier 9 and net from lower part
Shape liner plate 10 passes through, and passes through filtering material 2 from bottom to top, and the impurity such as moisture therein, paint, alcohol, coating, solvent or diluent are filtered
Fall, then flowed out by the porous barrier 9 on top, diversion pipe 3 is entered by the stomata 8 on diversion pipe 3, mixes one with cold media gas
It flows refrigerant gas outlet 5 in the same direction.Refrigerant after filtering becomes pure, and the gas being discharged from refrigerant gas outlet 5 is only examined gas
Body improves the precision of leak detection to make interference of the leak detection process not by the above gas on-site.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (7)
1. a kind of partial flow filter for leak detector characterized by comprising shell, filtering material and diversion pipe, the shell
Refrigerant air inlet is fixedly installed in the top of body, and refrigerant gas outlet is fixedly installed in the bottom of the shell, and the bottom of the shell is opened
If air inlet；The filtering material is set to enclosure interior；The diversion pipe connection refrigerant air inlet and refrigerant gas outlet,
And filter cotton is set at refrigerant gas outlet, stomata is opened up on the tube wall on the diversion pipe top.
2. a kind of partial flow filter for leak detector according to claim 1, which is characterized in that the filtering material
Porous barrier is arranged in bottom and top, and the porous barrier is fixedly connected with the casing, between the porous barrier and inner walls
Gas free air space is surrounded, the stomata on the diversion pipe is connected to superposed gas free air space.
3. a kind of partial flow filter for leak detector according to claim 2, which is characterized in that the filtering material with
One layer of netted liner plate is accompanied between porous barrier.
4. a kind of partial flow filter for leak detector according to claim 2, which is characterized in that the diversion pipe is from mistake
Filter material center passes through, and the refrigerant air inlet is located at the center of the case top, and the refrigerant gas outlet is located at the shell
The center of body bottom, the air inlet are opened in the two sides of refrigerant gas outlet.
5. a kind of partial flow filter for leak detector according to claim 1, which is characterized in that the filtering material is
Granular activated carbon, the diameter of the granular activated carbon are 0.5~0.8mm.
6. a kind of partial flow filter for leak detector according to claim 1, which is characterized in that the filter cotton is hair
Felt.
7. a kind of partial flow filter for leak detector according to claim 1, which is characterized in that the refrigerant air inlet
Mouth, refrigerant gas outlet are connected through a screw thread mode with shell and fix, between the refrigerant air inlet, refrigerant gas outlet and shell
Anaerobic adhesive is filled in the gap of formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820923950.5U CN208799901U (en) | 2018-06-14 | 2018-06-14 | A kind of partial flow filter for leak detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820923950.5U CN208799901U (en) | 2018-06-14 | 2018-06-14 | A kind of partial flow filter for leak detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208799901U true CN208799901U (en) | 2019-04-30 |
Family
ID=66228275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820923950.5U Expired - Fee Related CN208799901U (en) | 2018-06-14 | 2018-06-14 | A kind of partial flow filter for leak detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208799901U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051006A (en) * | 2020-09-09 | 2020-12-08 | 广东冠电科技股份有限公司 | Instrument and instrument equipment on-line monitoring device based on industrial internet |
| CN113899504A (en) * | 2021-09-23 | 2022-01-07 | 深圳华尔升智控技术有限公司 | Helium mass spectrometer leak detector with safety protection function |
-
2018
- 2018-06-14 CN CN201820923950.5U patent/CN208799901U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051006A (en) * | 2020-09-09 | 2020-12-08 | 广东冠电科技股份有限公司 | Instrument and instrument equipment on-line monitoring device based on industrial internet |
| CN112051006B (en) * | 2020-09-09 | 2023-03-10 | 广东冠电科技股份有限公司 | Instrument and instrument equipment on-line monitoring device based on industrial internet |
| CN113899504A (en) * | 2021-09-23 | 2022-01-07 | 深圳华尔升智控技术有限公司 | Helium mass spectrometer leak detector with safety protection function |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190430 Termination date: 20210614 |