CN211291592U - Mining flame-proof and intrinsically safe ultrasonic flowmeter - Google Patents
Mining flame-proof and intrinsically safe ultrasonic flowmeter Download PDFInfo
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- CN211291592U CN211291592U CN201921944505.8U CN201921944505U CN211291592U CN 211291592 U CN211291592 U CN 211291592U CN 201921944505 U CN201921944505 U CN 201921944505U CN 211291592 U CN211291592 U CN 211291592U
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- ultrasonic flowmeter
- intrinsically safe
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- proof
- safe ultrasonic
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Abstract
The utility model discloses a mining flame proof and intrinsically safe ultrasonic flowmeter. The technical scheme comprises the following steps: the box, install in bottom half's at least one first introducing device subassembly, install in the electric wire board of box inner chamber, be equipped with observation window subassembly, its characterized in that on the case lid of box upper end: the first introducing device assembly consists of a rubber ring, a blocking plate, an annular gasket and a compression nut, the rubber ring, the blocking plate, the annular gasket and the compression nut are sequentially installed in an installation opening of the box body, and at least the rubber ring is in interference connection with the installation opening, and the compression nut is in threaded connection with the installation opening; when a cable is led in for connection, the blocking plate is taken down, the cable is arranged in the cable to be connected with the electric wire plate in the inner cavity of the box body, and finally the rubber ring is deformed by screwing the compression nut, so that the rubber ring is tightly matched with the cable.
Description
Technical Field
The utility model relates to an ultrasonic flowmeter.
Background
At present, when a water pump of a large pump room in a coal mine well drains water, an instrument for detecting pipeline flow is generally electromagnetic, an ultrasonic flowmeter is rarely used, and the ultrasonic flowmeter is widely used in other industries. Because the coal mine is a flammable and explosive high-risk occasion, how to realize and improve the flame-proof and intrinsic safety functions of the acoustic flowmeter is an important direction for the development of the industry.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: a mining explosion-proof and intrinsically safe ultrasonic flowmeter is provided.
In order to achieve the above object, the utility model adopts the following technical scheme that: the box, install in bottom half's at least one first introducing device subassembly, install in the electric wire board of box inner chamber, be equipped with observation window subassembly, its characterized in that on the case lid of box upper end: the first introducing device assembly consists of a rubber ring, a blocking plate, an annular gasket and a compression nut, the rubber ring, the blocking plate, the annular gasket and the compression nut are sequentially installed in an installation opening of the box body, and at least the rubber ring is in interference connection with the installation opening, and the compression nut is in threaded connection with the installation opening; when a cable is led in for connection, the blocking plate is taken down, the cable is arranged in the cable to be connected with the electric wire plate in the inner cavity of the box body, and finally the rubber ring is deformed by screwing the compression nut, so that the rubber ring is tightly matched with the cable.
The mining flame-proof and intrinsically safe ultrasonic flowmeter is characterized in that: the other end of the cable is connected with the intrinsic safety sensor, a second leading-in device assembly is arranged at the upper end of the intrinsic safety sensor and corresponds to a filling and sealing area is arranged between the second leading-in device assemblies, the cable enters the intrinsic safety sensor through the second leading-in device assembly and the filling and sealing area, and filling and sealing glue is filled in the filling and sealing area.
The mining flame-proof and intrinsically safe ultrasonic flowmeter is characterized in that: the observation window assembly comprises a glass layer, a rubber pad, a pressing plate and a copper pad, wherein the copper pad and the rubber pad are sequentially arranged on the outer side of the glass layer, the rubber pad and the pressing plate are sequentially arranged on the inner side of the glass layer, and the glass layer is fixed on the inner side of the observation opening of the box cover through a connecting assembly.
The mining flame-proof and intrinsically safe ultrasonic flowmeter is characterized in that: the connecting assembly comprises a screw, an elastic washer and a flat washer.
The mining flame-proof and intrinsically safe ultrasonic flowmeter is characterized in that: the box cover is connected with the box body through the explosion-proof surface and is fastened and fixed through screws.
The mining flame-proof and intrinsically safe ultrasonic flowmeter is characterized in that: the electric wire board is arranged on an installation column of the inner cavity of the box body and is fixed through screws, so that a gap exists between the electric wire board and the bottom of the box body.
The mining flame-proof and intrinsically safe ultrasonic flowmeter is characterized in that: the case cover is further provided with a nameplate, a safety signboard and an alarm sign board, and the nameplate, the safety signboard and the alarm sign board are fixed through rivets.
The mining flame-proof and intrinsically safe ultrasonic flowmeter is characterized in that: the total width L1 of the explosion-proof surface is more than or equal to 25mm, and the width L2 inside the screw hole is more than or equal to 12.5 mm.
The mining flame-proof and intrinsically safe ultrasonic flowmeter is characterized in that: and a gap ic between the explosion-proof surface and the box cover is less than or equal to 0.4 mm.
The mining flame-proof and intrinsically safe ultrasonic flowmeter is characterized in that: the edge width L3 of the copper pad and the rubber pad is more than or equal to 12.5 mm.
The utility model discloses a mining flame proof and intrinsically safe type ultrasonic flowmeter advantage: the explosion-proof and intrinsic safety device has the explosion-proof and intrinsic safety functions, can bear power frequency withstand voltage test of 1min when 1500V test electric pressure is met, and the protection grade of the shell reaches IP 54.
Drawings
FIG. 1 is a schematic structural diagram of the flame-proof and intrinsically safe ultrasonic flowmeter for mining of the utility model;
FIG. 2 is a bottom view of the mining flameproof and intrinsically safe ultrasonic flowmeter of the present invention;
FIG. 3 is a side sectional view of the mining flameproof and intrinsically safe ultrasonic flowmeter of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1;
FIGS. 5 and 6 are partial enlarged views of FIG. 3;
FIG. 7 is a partial enlarged view of FIG. 3 showing the flameproof surface structure;
fig. 8 is a schematic structural diagram of the intrinsically safe sensor of the present invention.
Detailed Description
As shown in fig. 1-8, the utility model discloses a mining flame proof and intrinsic safety type ultrasonic flowmeter, including box 1, install in 5 first introducing device subassemblies 2 of box 1 bottom with install in the electric wire board 3 of the 1 inner chamber of box. A box cover 4 is installed at the upper end of the box body 1, and an observation window assembly 5 is arranged on the box cover 4. The first lead-in device assembly 2 consists of a rubber ring 6, a blocking plate 7, an annular washer 8 and a compression nut 9. Rubber circle 6, closure plate 7, annular gasket 8 and gland nut 9 are installed in proper order in the installing port 10 of box 1, and rubber circle 6, closure plate 7 with installing port 10 interference fit is connected. The compression nut 9 is in threaded connection with the mounting opening 10. When a cable 11 is led in for connection, the blocking plate 7 is taken down firstly, then the cable 11 is arranged in and connected with the electric wire plate 3 in the inner cavity of the box body 1, finally the compression nut 9 is screwed down to enable the rubber ring 6 to deform, and the periphery of the rubber ring is bound by the mounting port and the annular gasket and can only be drawn close to the central hole when being extruded, so that the rubber ring 6 is tightly matched with the cable 11 to achieve the sealing effect. The other end of cable 11 is connected with ann's sensor 12, ann's sensor 12 upper end is equipped with second induction device subassembly 13, corresponds be equipped with embedment district 14 between the second induction device subassembly 13, cable 11 passes through second induction device subassembly 13, embedment district 14 and gets into in ann's sensor 12, with ann's sensor 12's wiring end is connected. The potting area 14 is filled with a potting adhesive 15, and finally the overall sealing effect is achieved.
Further, the observation window assembly 5 includes a glass layer 16, a rubber pad 17, a pressing plate 18, and a copper pad 19. The outer side of the glass layer 16 is sequentially provided with a copper pad 19 and a rubber pad 17, the inner side of the glass layer is sequentially provided with the rubber pad 17 and a pressing plate 18, and the glass layer is fixed on the inner side of an observation port 21 of the box cover 4 through a connecting assembly 20. The coupling assembly 20 includes a screw 22, an elastic washer 23 and a flat washer 24. The viewing window assembly 5 is secured by tightening the screw 22. And the side widths L3 of the copper pad 19 and the rubber pad 17 are more than or equal to 12.5 mm. Finally, the explosion-proof requirement is met.
Furthermore, the electric wire board 3 is mounted on a mounting column 26 in the inner cavity of the box body 1 and fixed by a screw 22, so that a gap 27 exists between the electric wire board 3 and the bottom of the box body 1.
Further, a nameplate 28, a safety signboard 29 and an alarm signboard 30 are further arranged on the box cover 4, and the nameplate 28, the safety signboard 29 and the alarm signboard 30 are all fixed through rivets 31.
Further, the box cover 4 is connected with the box body 1 through an explosion-proof surface 25 and is screwed and fixed through a screw 22. The explosion-proof surface 25 is a flange welded with the box body 1. The total width L1 of the explosion-proof surface 25 is more than or equal to 25mm, and the width L2 inside the screw hole is more than or equal to 12.5 mm. And the clearance ic between the explosion-proof surface 25 and the box cover 4 is less than or equal to 0.4 mm. And finally, the explosion-proof requirement between the box cover 4 and the box body 1 is met.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention are all included within the protection scope of the present invention.
Claims (10)
1. The utility model provides a mining flame proof and intrinsically safe type ultrasonic flowmeter, includes box (1), install in at least one first introducing device subassembly (2) of box (1) bottom, install in the electric wire board (3) of box (1) inner chamber, be equipped with observation window subassembly (5), its characterized in that on case lid (4) of box (1) upper end: first introducing device subassembly (2) comprises rubber circle (6), closure plate (7), annular washer (8) and gland nut (9), rubber circle (6), closure plate (7), annular washer (8) and gland nut (9) are installed in proper order in installing port (10) of box (1), and at least rubber circle (6) with installing port (10) interference connection gland nut (9) with installing port (10) threaded connection.
2. The mining flameproof and intrinsically safe ultrasonic flowmeter of claim 1, characterized in that: cable (11) one end of outside introduction is connected, other one end is connected with ann's sensor (12) with electric wire board (3), ann's sensor (12) upper end is equipped with second introduction device subassembly (13), corresponds be equipped with embedment district (14) between second introduction device subassembly (13), cable (11) pass through second introduction device subassembly (13), embedment district (14) get into in ann's sensor (12), embedment district (14) intussuseption is filled with casting glue (15).
3. The mining flameproof and intrinsically safe ultrasonic flowmeter of claim 1, characterized in that: observation window subassembly (5) include glass layer (16), rubber pad (17), clamp plate (18), copper pad (19), glass layer (16) outside sets gradually copper pad (19) and rubber pad (17), inboard sets gradually rubber pad (17) and clamp plate (18) to fix it through coupling assembling (20) observation mouth (21) inboard of case lid (4).
4. The mining flameproof and intrinsically safe ultrasonic flowmeter of claim 3, characterized in that: the connecting assembly (20) comprises a screw (22), an elastic washer (23) and a flat washer (24).
5. The mining flameproof and intrinsically safe ultrasonic flowmeter of claim 1, characterized in that: the box cover (4) is connected with the box body (1) through the explosion-proof surface (25) and is screwed and fixed through the screw (22).
6. The mining flameproof and intrinsically safe ultrasonic flowmeter of claim 1, characterized in that: the electric wire board (3) is arranged on an installation column (26) in the inner cavity of the box body (1) and is fixed through a screw (22), so that a gap (27) exists between the electric wire board (3) and the bottom of the box body (1).
7. The mining flameproof and intrinsically safe ultrasonic flowmeter of claim 1, characterized in that: the box cover (4) is further provided with a nameplate (28), a safety sign plate (29) and an alarm sign plate (30), and the nameplate (28), the safety sign plate (29) and the alarm sign plate (30) are fixed through rivets (31).
8. The mining flameproof and intrinsically safe ultrasonic flowmeter of claim 5, characterized in that: the total width L1 of the explosion-proof surface (25) is more than or equal to 25mm, and the inner width L2 of the screw hole is more than or equal to 12.5 mm.
9. The mining flameproof and intrinsically safe ultrasonic flowmeter of claim 5, characterized in that: and a gap ic between the explosion-proof surface (25) and the box cover (4) is less than or equal to 0.4 mm.
10. The mining flameproof and intrinsically safe ultrasonic flowmeter of claim 3, characterized in that: the side widths L3 of the copper pad (19) and the rubber pad (17) are more than or equal to 12.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921944505.8U CN211291592U (en) | 2019-11-12 | 2019-11-12 | Mining flame-proof and intrinsically safe ultrasonic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921944505.8U CN211291592U (en) | 2019-11-12 | 2019-11-12 | Mining flame-proof and intrinsically safe ultrasonic flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211291592U true CN211291592U (en) | 2020-08-18 |
Family
ID=72016787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921944505.8U Active CN211291592U (en) | 2019-11-12 | 2019-11-12 | Mining flame-proof and intrinsically safe ultrasonic flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211291592U (en) |
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2019
- 2019-11-12 CN CN201921944505.8U patent/CN211291592U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 325600 building 7, Oriental Science and Technology Park, Weng long street, Yueqing City, Wenzhou City, Zhejiang Province Patentee after: Zhejiang Yongrui Instrument Technology Co.,Ltd. Address before: Dongfang village, Weng long street, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: Zhejiang Yongrui Instrument Technology Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |