CN206725163U - Suction cavate helium mass spectrometer leak detector suction gun applied to vavuum pump - Google Patents
Suction cavate helium mass spectrometer leak detector suction gun applied to vavuum pump Download PDFInfo
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- CN206725163U CN206725163U CN201720426565.5U CN201720426565U CN206725163U CN 206725163 U CN206725163 U CN 206725163U CN 201720426565 U CN201720426565 U CN 201720426565U CN 206725163 U CN206725163 U CN 206725163U
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- suction
- vavuum pump
- mass spectrometer
- stainless steel
- leak detector
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Abstract
The utility model discloses a kind of suction cavate helium mass spectrometer leak detector suction gun applied to vavuum pump, filter and the rubber tube of connection helium mass spectrometer leak detector including stainless steel handle, for being filtered to the gas that vavuum pump is discharged, it is more than the cavity pipe of stainless steel handle length in the stainless steel handle embedded with length, one end of rubber tube is fixedly connected with one end of cavity pipe, and the other end of cavity pipe is threadedly coupled with filter.The utility model is simple in construction, easy for installation, applied to the detection for carrying out helium leakage in thermal power plant to vavuum pump, it can ensure that the amount of helium for sucking detector is maximum, can also make the air-flow of helium more stable, offer reliable basis can be detected accurately to detector.
Description
Technical field
Leakage detecting instrument technical field is the utility model is related to, particularly a kind of helium mass spectrometer leak detector.
Background technology
The effect of power plant's vacuum system is that the pressure at expulsion for reducing steam turbine forms high vacuum, to increase steam in steamer
Isentropic enthalpy drop in machine, acting of the increase steam in steam turbine；The foundation of vacuum relies on vavuum pump, vavuum pump in vacuum system
Effect be embodied in vacuumizing and two processes of the maintenance of vacuum for power plant condenser.Vacuumizing phase, be in condenser not
Initial evacuation during steam is introduced, extracts the air in condenser and other incondensable gases out；The vacuum maintenance stage, it is cold
During condenser normal operation, vavuum pump works on to extract the incondensable gas such as leaked-in air and steam in condenser out, maintains
Vacuum in condenser, it is ensured that the high-efficiency operation of steam turbine, improve the thermal efficiency of power plant.
Thermal power plant's vacuum system is huge, and pipeline and valve are numerous, and scene is frequently encountered because of pipe welding seam and valve leak
Caused unit vaccum leakage rate is big, the problem of further resulting in unit vacuum exception.In order to ensure that the safety economy of unit is steady
Fixed operation, it is often necessary to carry out vacuum system leak test at the scene.It is presently used for detecting whether vacuum system has the instrument of leakage
The widely used helium mass spectrometer leak detector for inhaling chamber pattern of device.But inhale cavate helium mass spectrometer leak detector in use, by helium matter
Leak detector front device installation site and the limitation of its suction gun structure are composed, helium mass spectrometer leak detector, which can only obtain, sprays into unit vacuum
The small part of system helium, in order to ensure that leak detector obtains helium as much as possible, lift the reaction speed of helium mass spectrometer leak detector
Degree, the operating efficiency of leak detection is improved, shorten the time of leak detection work, therefore there is an urgent need to a kind of monitoring dress relatively simple for structure
Put current to solve the problems, such as.
Utility model content
The utility model technical issues that need to address are to provide a kind of simple in construction, easy for installation and are applied to install
Suction cavate helium mass spectrometer leak detector suction gun on to vavuum pump, to ensure to suck the stability of helium gas flow.
In order to solve the above technical problems, technical solution adopted in the utility model is as follows.
Applied to the suction cavate helium mass spectrometer leak detector suction gun of vavuum pump, including stainless steel handle, for being discharged to vavuum pump
The filter that is filtered of gas and connect the rubber tube of helium mass spectrometer leak detector, be embedded with length in the stainless steel handle
More than the cavity pipe of stainless steel handle length, one end of rubber tube is fixedly connected with one end of cavity pipe, the other end of cavity pipe
It is connected with filter.
The above-mentioned suction cavate helium mass spectrometer leak detector suction gun applied to vavuum pump, the cavity pipe are threadedly coupled with filter.
The above-mentioned suction cavate helium mass spectrometer leak detector suction gun applied to vavuum pump, the shell of the filter is outside stainless steel
Shell, filter core are ceramic element.
As a result of above technical scheme, technological progress acquired by the utility model is as follows.
The utility model is simple in construction, easy for installation, using helium density less than air, vavuum pump helium from top vent
The characteristics of pipe is discharged is designed, and applied to the detection for carrying out helium leakage in thermal power plant to vavuum pump, can ensure suction inspection
The amount of helium maximum of instrument is surveyed, can also make the air-flow of helium more stable, offer reliable basis can be detected accurately to detector.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein：1. stainless steel handle, 2. cavity pipes, 3. filters, 4. rubber tubes.
Embodiment
The utility model is further elaborated below in conjunction with specific embodiment.
Applied to the suction cavate helium mass spectrometer leak detector suction gun of vavuum pump, its structure as shown in figure 1, including stainless steel handle 1,
Filter 3, rubber tube 4 and cavity pipe 2, cavity pipe 2 are inlaid in stainless steel handle 1, and the length of cavity pipe 2 is more than stainless steel
The length of handle 1, one end of cavity pipe 2 are fixedly connected with one end of rubber tube, and the other end and the screw thread of filter 3 of cavity pipe connect
Connect.
Filter 3 is used to filter the gas of vavuum pump discharge, to ensure the gas into helium mass spectrometer detector
In do not contain impurity.In the utility model, the shell of filter 3 is stainless steel casing, and filter core is ceramic element, disclosure satisfy that
On the basis of filtering requirement, its adaptability to adverse circumstances is improved.
Rubber tube 4 is used to connect the utility model and helium mass spectrometer leak detector, and the gas for will be discharged from vavuum pump is whole
Helium mass spectrometer leak detector is delivered to, improves the accuracy of detection.
In the present embodiment, the external diameter of stainless steel handle 1 is 50mm, length 300mm, on the central axis of stainless steel handle
A diameter of 10mm cavity is provided with, for placing cavity pipe；The external diameter of cavity pipe 2 is the sky in 10mm, with stainless steel handle
Chamber is interference fitted, length 350mm, and the length positioned at stainless steel handle upper end is 10mm, the length positioned at stainless steel handle lower end
Spend for 40mm, external screw thread is provided with the cavity pipe outer wall of stainless steel handle lower end；The external diameter of filter 3 is 30mm, mistake
The top of filter is provided with internal thread, is equipped with the external screw thread screw thread at cavity ttom of pipe end；The internal diameter of rubber tube 4 is 10mm, with sky
Lumen is corresponding, length 3000mm, convenient connection.
The utility model in use, first by filter be arranged on stainless steel handle the end of thread, rubber tube is arranged on
The top of stainless steel handle, it is assembled into suction chamber；Then, filter is arranged in the blast pipe of vavuum pump, and by stainless steel hand
Handle is fixed on the suspension bracket of blast pipe, is ensured to firmly install, is prevented the phenomenon that drops；Finally by rubber tube and helium mass spectrum leak detection
Instrument connects.
Claims (3)
1. the suction cavate helium mass spectrometer leak detector suction gun applied to vavuum pump, it is characterised in that：Including stainless steel handle（1）, be used for
The filter filtered to the gas of vavuum pump discharge（3）And the rubber tube of connection helium mass spectrometer leak detector（4）, it is described stainless
Steel handle（1）In embedded with length be more than stainless steel handle length cavity pipe（2）, rubber tube（4）One end and cavity pipe（2）
One end be fixedly connected, cavity pipe（2）The other end and filter（3）Connection.
2. the suction cavate helium mass spectrometer leak detector suction gun according to claim 1 applied to vavuum pump, it is characterised in that：It is described
Cavity pipe（2）With filter（3）Threaded connection.
3. the suction cavate helium mass spectrometer leak detector suction gun according to claim 1 applied to vavuum pump, it is characterised in that：It is described
Filter（3）Shell be stainless steel casing, filter core is ceramic element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720426565.5U CN206725163U (en) | 2017-04-21 | 2017-04-21 | Suction cavate helium mass spectrometer leak detector suction gun applied to vavuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720426565.5U CN206725163U (en) | 2017-04-21 | 2017-04-21 | Suction cavate helium mass spectrometer leak detector suction gun applied to vavuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206725163U true CN206725163U (en) | 2017-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720426565.5U Active CN206725163U (en) | 2017-04-21 | 2017-04-21 | Suction cavate helium mass spectrometer leak detector suction gun applied to vavuum pump |
Country Status (1)
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| CN (1) | CN206725163U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941433A (en) * | 2018-01-10 | 2018-04-20 | 河北冀研能源科学技术研究院有限公司 | Cylindrical sensor fixing device is used in pipeline |
-
2017
- 2017-04-21 CN CN201720426565.5U patent/CN206725163U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941433A (en) * | 2018-01-10 | 2018-04-20 | 河北冀研能源科学技术研究院有限公司 | Cylindrical sensor fixing device is used in pipeline |
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Address after: 050000 2nd floor, Yingpan commercial and residential building, 129 Nanxiao street, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee after: Hebei Jiantou energy science and Technology Research Institute Co.,Ltd. Address before: 050000 2nd floor, Yingpan commercial and residential building, 129 Nanxiao street, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee before: HEBEI JI-YAN ENERGY SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |