CN211205922U - Glass piece sealing connecting piece and sealing connecting device for flue gas sampling - Google Patents
Glass piece sealing connecting piece and sealing connecting device for flue gas sampling Download PDFInfo
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- CN211205922U CN211205922U CN201922240939.6U CN201922240939U CN211205922U CN 211205922 U CN211205922 U CN 211205922U CN 201922240939 U CN201922240939 U CN 201922240939U CN 211205922 U CN211205922 U CN 211205922U
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Abstract
The utility model relates to a glass sealing connecting piece and a sealing connecting device for sampling flue gas, wherein the sealing connecting device comprises a tubular sealing joint and an annular sealing gasket; the sealing joint is of an integrated structure and consists of a sealing section and a connecting section; the connecting section is provided with internal threads; the connecting section and the sealing section are respectively used for being matched and connected with two glass pieces to be communicated; the inner diameter of the sealing section is smaller than that of the connecting section; the sealing gasket is positioned on the inner side of the connecting section and is in contact with the sealing section; the inner diameter of the sealing gasket is larger than or equal to that of the sealing section; the inner side of the sealing section is axially provided with N sealing ring grooves, adaptive sealing rings are embedded in the sealing ring grooves, N is an integer and is not less than 1. Glass spare passes through sealing connection spare to be connected, produces the packing force and realizes sealing, the utility model discloses a many seal structure is integrated with sealing washer and sealed pad, has effectively avoided glass spare to leak the problem in connecting the use.
Description
Technical Field
The utility model belongs to environmental pollution analysis and monitoring field mainly relate to the sampling analysis of target pollutant in the flue, especially the sealed connecting device in the used glass spare of sampling analysis and monitoring of dioxin in flue gas and smoke and dust.
Background
In the flue gas sampling process, the existing glass part sealing connecting device is a single-stage sealing structure, and the leakage problem easily occurs in the sampling process due to poor sealing effect, so that the detection accuracy is influenced.
SUMMERY OF THE UTILITY MODEL
The leakage problem that appears when solving among the prior art sealing connection device and connecting, the utility model provides a flue gas sampling is with glass spare sealing connection device, sealing connection device has multistage seal structure, has solved the sealed problem of connection that the use of sampling in-process glass spare brought.
The technical scheme of the utility model as follows:
on the first hand, the utility model provides a glass sealing connecting piece for sampling flue gas,
the sealing connection device comprises a tubular sealing joint and an annular sealing gasket;
the sealing joint is of an integrated structure and consists of a sealing section and a connecting section;
the connecting section is provided with internal threads;
the connecting section and the sealing section are respectively used for being matched and connected with two glass pieces to be communicated;
the inner diameter of the sealing section is smaller than that of the connecting section;
the sealing gasket is positioned on the inner side of the connecting section and is in contact with the sealing section;
the inner diameter of the sealing gasket is larger than or equal to that of the sealing section;
the inner side of the sealing section is axially provided with N sealing ring grooves, adaptive sealing rings are embedded in the sealing ring grooves, N is an integer and is not less than 1.
Preferably, the sealing joint is made of a non-metal material; the sealing ring and the sealing gasket are made of colloidal materials.
Preferably, the material of the sealing joint is one of polytetrafluoroethylene and nylon; the sealing ring and the sealing gasket are made of one of silica gel and rubber.
In a second aspect, the utility model provides a glass sealing and connecting device for sampling flue gas,
the connecting device comprises a glass tube I, a glass tube II and the sealing connecting piece;
the outer diameter of the glass tube I is smaller than the inner diameter of the glass tube II;
the glass tube I is inserted into the sealing connecting piece from the sealing section of the sealing joint and penetrates through the sealing gasket;
the glass tube II is provided with an external thread interface;
the glass tube II is connected with the connecting section through an external thread interface;
the tail end of the external thread interface is in contact with the sealing gasket.
When the glass piece sealing and connecting device for sampling the flue gas is used, the sealing ring is limited in the sealing ring groove of the sealing joint, and the sealing gasket is limited at the inner side of the connecting section of the sealing joint and is in contact with the sealing section;
inserting the glass tube I from the sealing section of the sealing joint and through the sealing gasket; the sealing ring and the sealing gasket are radially expanded and deformed to realize sealing; and connecting the glass tube II with the connecting section of the sealing device through an external thread interface, contacting the tail end of the external thread interface with a sealing gasket, and contacting the sealing gasket with the connecting section of the sealing joint to generate pressing force so as to realize further sealing through axial expansion and deformation of the sealing gasket.
Advantageous effects
The utility model provides a glass spare sealing connection device for flue gas sampling has multistage seal structure, compares with single-stage seal, and this seal structure is with the combination of sealing washer and sealed pad, and the sealing washer is not limited to setting up one, realizes the extrusion and compresses tightly multistage sealed, avoids the leakage problem of glass spare in connecting the use.
Drawings
Fig. 1 is the utility model discloses a flue gas sampling is with glass spare sealing connection device sampling during operation's schematic diagram.
Fig. 2 is the schematic diagram of the glass sealing connector for sampling flue gas of the present invention.
In the figure, 1 is a sealing joint, 2 is a sealing ring, 3 is a sealing gasket, 4 is a glass tube I, 5 is a glass tube II, 6 is a sealing section, and 7 is a connecting section.
Detailed Description
The following describes an embodiment of the present invention with reference to fig. 1 and 2.
A glass sealing connector for sampling flue gas (figure 1) comprises a tubular sealing joint 1 and an annular sealing gasket 3; the sealing joint 1 is of an integrated structure and consists of a sealing section 6 and a connecting section 7; the connecting section 7 is provided with internal threads; the connecting section 7 and the sealing section 6 are respectively used for being matched and connected with two glass pieces to be communicated; the inner diameter of the sealing section 6 is smaller than that of the connecting section 7; the sealing gasket 3 is positioned on the inner side of the connecting section 7 and is in contact with the sealing section 6; the inner diameter of the sealing gasket 3 is more than or equal to that of the sealing section 6; the inboard axial of seal section 6 is equipped with two seal ring grooves, the seal ring inslot is inlayed and is had the sealing washer 2 of adaptation.
The sealing joint 1 is made of polytetrafluoroethylene; the sealing ring 2 and the sealing gasket 3 are made of silica gel.
The utility model provides a glass sealing and connecting device for sampling flue gas (figure 2), which comprises a glass tube I4, a glass tube II 5 and a sealing and connecting piece shown in figure 1; the outer diameter of the glass tube I4 is smaller than the inner diameter of the glass tube II 5; the glass tube I4 is inserted into the sealing connecting piece from the sealing section 6 of the sealing joint 1 and penetrates through the sealing gasket 3; the glass tube II 5 is provided with an external thread interface; the glass tube II 5 is connected with the connecting section 7 of the sealing connecting piece through an external thread interface, and the tail end of the external thread interface is contacted with the sealing gasket 3.
When the glass piece sealing and connecting device for sampling the flue gas is used, the sealing ring 2 is limited in the sealing ring groove of the sealing joint 1, and the sealing gasket 3 is limited at the inner side of the connecting section 7 of the sealing joint 1 and is in contact with the sealing section 6;
inserting the glass tube I4 from the sealing section 6 of the sealing joint 1 into the sealing connection and through the sealing gasket 3; the sealing ring 2 and the sealing gasket 3 are radially expanded and deformed to realize sealing; the glass tube II 5 is connected with the connecting section 7 of the sealing connecting piece through the external thread interface, the tail end of the external thread interface is contacted with the sealing gasket 3, and the sealing gasket 3 is contacted with the connecting section 7 of the sealing joint 1 to generate pressing force, so that the sealing gasket 3 is axially expanded and deformed to realize further sealing.
Claims (4)
1. A glass sealing connecting piece for sampling flue gas, which is characterized in that,
the sealing connecting piece comprises a tubular sealing joint and an annular sealing gasket;
the tubular sealing joint is of an integrated structure and consists of a sealing section and a connecting section;
the connecting section is provided with internal threads;
the connecting section and the sealing section are respectively used for being matched and connected with two glass pieces to be communicated;
the inner diameter of the sealing section is smaller than that of the connecting section;
the sealing gasket is positioned on the inner side of the connecting section and is in contact with the sealing section;
the inner diameter of the sealing gasket is less than or equal to that of the sealing section;
the inner side of the sealing section is axially provided with N sealing ring grooves, adaptive sealing rings are embedded in the sealing ring grooves, N is an integer and is not less than 1.
2. The sealing joint as claimed in claim 1,
the sealing joint is made of non-metal materials;
the sealing ring and the sealing gasket are made of colloidal materials.
3. The sealing joint as claimed in claim 2,
the sealing joint is made of one of polytetrafluoroethylene and nylon;
the sealing ring and the sealing gasket are made of one of silica gel and rubber.
4. A glass sealing and connecting device for sampling flue gas, which is characterized in that,
the connecting device comprises a glass tube I, a glass tube II and the sealing connecting piece of any one of claims 1 to 3;
the outer diameter of the glass tube I is smaller than the inner diameter of the glass tube II;
the glass tube I is inserted into the sealing connecting piece from the sealing section of the tubular sealing joint and penetrates through the sealing gasket;
the glass tube II is provided with an external thread interface;
the glass tube II is connected with the connecting section of the sealing connecting piece through an external thread interface;
the tail end of the external thread interface is in contact with the sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922240939.6U CN211205922U (en) | 2019-12-14 | 2019-12-14 | Glass piece sealing connecting piece and sealing connecting device for flue gas sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922240939.6U CN211205922U (en) | 2019-12-14 | 2019-12-14 | Glass piece sealing connecting piece and sealing connecting device for flue gas sampling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211205922U true CN211205922U (en) | 2020-08-07 |
Family
ID=71855595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922240939.6U Active CN211205922U (en) | 2019-12-14 | 2019-12-14 | Glass piece sealing connecting piece and sealing connecting device for flue gas sampling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211205922U (en) |
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2019
- 2019-12-14 CN CN201922240939.6U patent/CN211205922U/en active Active
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