CN2157507Y - Explosionproof shell for in-situ temp. measuring instrument - Google Patents
Explosionproof shell for in-situ temp. measuring instrument Download PDFInfo
- Publication number
- CN2157507Y CN2157507Y CN 93217994 CN93217994U CN2157507Y CN 2157507 Y CN2157507 Y CN 2157507Y CN 93217994 CN93217994 CN 93217994 CN 93217994 U CN93217994 U CN 93217994U CN 2157507 Y CN2157507 Y CN 2157507Y
- Authority
- CN
- China
- Prior art keywords
- explosion
- proof chamber
- protecgulum
- bonnet
- housing
- 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.)
- Expired - Fee Related
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses an explosion proof shell for site temperature measuring instruments, comprising a first explosion proof cavity 14 whose inner part is divided by a slider 12 and a column-shaped shell 2 of a second explosion proof cavity 13, wherein, the first explosion proof cavity 14 is used for being provided with a power supply end plate, and the second explosion proof cavity is used for being provided with a temperature measurement and treatment circuit board. The first explosion proof cavity 14 is provided with a back cover 3, the second explosion proof cavity 13 is provided with a front cover 1 which is provided with an armor plate glass 17, and the armor plate glass can be used as a protective plate of a digital display plate and has a sealing function.
Description
The utility model relates to a kind of shell of temperature measuring set, particularly relates to a kind of explosion-resistant enclosure that makes temperature sensor, electronic circuit board and display form the temperature measuring set of one.
Employed temperature measuring set in present explosion-proof scene such as explosion-proof type thermometer, there is following shortcoming in explosion-proof temperature switches etc.:
On-the-spot installation and maintenance are inconvenient, the processing difficulties of shell own.
The purpose of this utility model provides a kind of explosion-resistant enclosure that can overcome the explosion-proof temperature measuring set of above-mentioned shortcoming, and it makes temperature sensor, electronic circuit and display constitute one.
For reaching this purpose, the utility model designs the explosion-resistant enclosure of following structure:
It comprises first explosion-proof chamber that an inside is separated by isolated body and the cylindrical housings of second explosion-proof chamber, and wherein first explosion-proof chamber is for installing power end daughter board usefulness, and second explosion-proof chamber is used to install temperature detection and treatment circuit plate.Have on the isolated body one with seal with elastometic washer and can make power lead feed hole on temperature detection and the treatment circuit; be processed with screw thread respectively on the face of cylinder of two openends of cylindrical housings; screwed bonnet and protecgulum respectively by being threaded onto the housing two ends so that seal up first explosion-proof chamber and second explosion-proof chamber; the face that the same lid of housing end face and bonnet cooperate is the plane; protecgulum and bonnet also are the plane with the face that housing cooperates; one circular tempered glass is housed in protecgulum; it is as the protection panel of digital indicator; and seal, it is fixed on the protecgulum with being threaded of above-mentioned female protecgulum by means of a screwed internal gland.Housing is provided with temperature sensor feeder line mouth 6, power feeder mouth 10, the pillar 11 of fixed temperature detection and treatment circuit plate.
Fig. 1 is the general assembly drawing of the explosion-resistant enclosure of temperature measuring set of the present utility model with other parts;
Fig. 2 is the side view of the explosion-resistant enclosure of temperature measuring set of the present utility model;
Fig. 3 is the rear view of the housing 2 among Fig. 2;
Fig. 4 is along A-A line cut-open view among Fig. 3;
Fig. 5 is along the B-B line cut-open view among Fig. 3;
Fig. 6 is for being the cut-open view of protecgulum;
Fig. 7 is the cut-open view of bonnet.
Concrete scheme below in conjunction with the explosion-resistant enclosure of description of drawings temperature measuring set of the present utility model.
Referring to Fig. 1-5,2 is first explosion-proof chamber 14 and second explosion-proof chamber 13 that an inside is separated by isolated body 12; Wherein first explosion-proof chamber is used to install the power end daughter board; second explosion-proof chamber is used to install temperature detection and treatment circuit plate; on isolated body 12, be provided with a hole 10; line is by this hole between temperature detection circuit board and the power end daughter board; and will seal around the hole with a rubber seal; be processed with screw thread respectively on the face of cylinder of two openends of cylindrical housings; screwed bonnet 3 and protecgulum 1 are respectively by on two ends that are threaded onto housing 2; thereby first explosion-proof chamber 14 and second explosion-proof chamber 13 are sealed with extraneous the maintenance; the end face of housing 2 is the plane; the face that bonnet and protecgulum are mated also is the plane; one circular tempered glass 17 is housed in protecgulum 1; it is as the panel of protection digital indicator 4; and the sealing that keeps second explosion-proof chamber, it is affixed on the protecgulum with the protecgulum 1 that has internal thread by means of a screwed internal gland 16.Housing 2 is provided with temperature sensor feeder line mouth 6, power feeder mouth 10, the pillar 11 of fixed temperature detection and treatment circuit plate.In order further to make the isolation of first explosion-proof chamber 14 and second explosion-proof chamber 13, with housing 2 cooperation places O- ring seal 18 and 15 are housed respectively at bonnet 3 and protecgulum with the outside.Open bonnet during for wiring at the scene easily, on the outer face on the bonnet, have groove 19.
The advantage of explosion-resistant enclosure of the present utility model is to make digital indicator, detection line plate to be installed in second explosion-proof chamber 13, the power end daughter board is installed in first explosion-proof chamber 14, because the hole 10 that has a confession to pass through on the isolated body 12 from the power lead on the power end daughter board, this power lead is as the power input line of temperature detection and treatment circuit plate, on hole 10, be provided with an O-ring seal, spark can not be spread, and the explosive-proof grade of explosion-resistant enclosure of the present utility model reaches d
2BT
4Level.
Claims (4)
1, a kind of explosion-resistant enclosure of scene temperature measuring instrument is characterized in that comprising first explosion-proof chamber (14) that an inside is separated by isolated body (12) and the columniform housing (2) of second explosion-proof chamber (13); Wherein first explosion-proof chamber (14) is used to install the power end daughter board, second explosion-proof chamber (13) is used to install temperature detection and treatment circuit plate, isolated body (12) have one with seal with elastometic washer and can make the power lead on the power end daughter board in first explosion-proof chamber (14) be passed into the temperature detection of second explosion-proof chamber (13) and the perforate (10) on the treatment circuit plate; On the face of cylinder of two openends of cylindrical housings, be processed with screw thread respectively; screwed protecgulum (1) and bonnet (3) are respectively by being threaded onto the two ends of housing; thereby first explosion-proof chamber and second explosion-proof chamber are isolated with extraneous; the same protecgulum of end face (1) of housing (2) and the mating surface of bonnet (3) are the plane; the face that protecgulum (1) and the same housing of bonnet (3) (2) cooperate also is the plane; a circular armourplate glass (17) is housed in protecgulum (1), and it is as the protection panel of digital indicator (4) and the sealing that keeps second explosion-proof chamber 13.Armourplate glass (17) is fixed on the protecgulum (1) with the protecgulum (1) that has internal thread by means of a screwed internal gland 16, and housing (2) is provided with temperature sensor feeder line mouth (6), power feeder mouth (10); Be provided with the pillar (11) of fixed temperature detection and treatment circuit plate in second explosion-proof chamber (13).
2, the explosion-resistant enclosure of temperature measuring set as claimed in claim 1 is characterized in that described shell (2) made by aluminium alloy.
3, as the explosion-resistant enclosure of the temperature measuring set of claim 1 or 2, it is characterized in that being respectively equipped with a packing ring on described protecgulum (1) and the bonnet (3), so that further seal second explosion-proof chamber (13) and first explosion-proof chamber (14).
4, the explosion-resistant enclosure of temperature measuring set as claimed in claim 1 is characterized in that all bonnets are provided with opening groove, carries out field wiring to be convenient to opening bonnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93217994 CN2157507Y (en) | 1993-07-13 | 1993-07-13 | Explosionproof shell for in-situ temp. measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93217994 CN2157507Y (en) | 1993-07-13 | 1993-07-13 | Explosionproof shell for in-situ temp. measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2157507Y true CN2157507Y (en) | 1994-02-23 |
Family
ID=33797776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93217994 Expired - Fee Related CN2157507Y (en) | 1993-07-13 | 1993-07-13 | Explosionproof shell for in-situ temp. measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2157507Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896081A (en) * | 2017-05-11 | 2018-11-27 | Wika亚历山大·威甘德欧洲股份两合公司 | measuring instrument |
| US20220397434A1 (en) * | 2021-06-11 | 2022-12-15 | Abb Schweiz Ag | Explosion management and methods thereof |
-
1993
- 1993-07-13 CN CN 93217994 patent/CN2157507Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896081A (en) * | 2017-05-11 | 2018-11-27 | Wika亚历山大·威甘德欧洲股份两合公司 | measuring instrument |
| US11009420B2 (en) * | 2017-05-11 | 2021-05-18 | Wika Alexander Wiegand Se & Co. Kg | Measuring device |
| CN108896081B (en) * | 2017-05-11 | 2021-10-08 | Wika亚历山大·威甘德欧洲股份两合公司 | Measuring instrument |
| US20220397434A1 (en) * | 2021-06-11 | 2022-12-15 | Abb Schweiz Ag | Explosion management and methods thereof |
| US11549832B2 (en) * | 2021-06-11 | 2023-01-10 | Abb Schweiz Ag | Explosion management and methods thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |