CN101968392B - High-pressure isolation device for pressure transmitter - Google Patents
High-pressure isolation device for pressure transmitter Download PDFInfo
- Publication number
- CN101968392B CN101968392B CN 201010521447 CN201010521447A CN101968392B CN 101968392 B CN101968392 B CN 101968392B CN 201010521447 CN201010521447 CN 201010521447 CN 201010521447 A CN201010521447 A CN 201010521447A CN 101968392 B CN101968392 B CN 101968392B
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- capping
- pull bar
- lever
- pressure unit
- pressure
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Abstract
A high-pressure isolation device for a pressure transmitter comprises a sealed box body, wherein one side of the box body is provided with a detection channel communicated with a container to be detected and the other side thereof is provided with a pressure transmitter connector. The high-pressure isolation device is characterized in that a column is arranged in the sealed box body; the upper end of the column is hinged with a seal cover lever; one end of the seal cover lever is provided with a seal cover matched with the calibre of the detection channel and the other end thereof is connected with a pull rod; and the pull rod is connected with an outside drive mechanism by passing through a bottom board of the sealed box body. The device has the following beneficial effects: the device can isolate the pressure transmitter from the inside of a dust catcher during reverse flow dust cleaning inside the dust catcher to realize protection of the pressure transmitter, and a cylinder drives the pull rod to move to seal the detection channel when the measured data of the pressure transmitter show that reverse flow dust cleaning is required in the dust catcher, thus realizing isolation of the pressure transmitter from the dust catcher.
Description
Technical field
The present invention relates to the protective device of pressure unit, particularly relate to a kind of pressure unit high pressure spacer assembly.
Background technology
Pressure unit in general sense mainly is made up of load cell (being also referred to as pressure transducer), metering circuit and process web member three parts.Physical pressure parameters such as the gas that it can be experienced load cell, liquid are transformed into the electric signal (as 4 ~ 20mADC etc.) of standard, and secondary instruments such as indicator alarm, registering instrument, regulator are measured to supply with, indication and process are regulated.
The negative pressure pressure unit generally is installed on box bag dust collector; be used for measuring fly-ash separator pressure inside situation; situation with the filter bag dust stratification of judging this type of fly-ash separator; whether decision needs reverse gas cleaning, but existing negative pressure pressure unit mostly directly is connected with fly-ash separator, does not have safeguard measure; because the voltage endurance capability of this negative pressure pressure unit is limited; in the process of blowback dedusting,, cause the damage of this negative pressure pressure unit easily by the high-voltage breakdown of blowback.
Summary of the invention
To the objective of the invention is in order addressing the above problem, a kind of pressure unit high pressure spacer assembly to be provided, in order to protection negative pressure pressure unit in the gases at high pressure blowback.
Technical scheme of the present invention is: a kind of pressure unit high pressure spacer assembly, contain closed box, this casing one side is provided with sense channel and is communicated with detected container, opposite side is provided with the pressure unit connector, be provided with column in the described airtight casing, this column upper end is hinged with the capping lever, and this capping lever one end is provided with the capping with sense channel bore coupling; The other end is connected with pull bar, and the base plate that this pull bar passes this airtight casing is connected with the driving mechanism of outside.
Described driving mechanism contains reverse lever and drives cylinder, on the piston rod that drives cylinder, be fixedly connected with disk body, one end of this disk body and reverse lever is hinged, and this reverse lever middle part is hinged with support, and the other end of this reverse lever is connected with bearing pin by chute with described pull bar.
The position that described pull bar passes airtight casing is provided with sealing shroud, and pull bar slides up and down in the sealing cover.
Be set with reduction torsion spring on the twisted axis between described capping lever and the column, the acting force of this reduction torsion spring is towards the direction of capping lever opening capping.
Described pull bar upper end is connected with chute on the capping lever by bearing pin, and the bottom of this pull bar penetrates the bottom that is installed in airtight casing.
Described capping is a resilient material.
Beneficial effect of the present invention
Pressure unit high pressure spacer assembly of the present invention can be in the inner reverse gas cleaning of fly-ash separator; pressure unit and fly-ash separator internal insulation are come; realization is to the protection of pressure unit; measurement data demonstration at pressure unit need be in fly-ash separator in the reverse gas cleaning; cylinder drives the pull bar motion with the sense channel sealing, thereby has realized the isolation of pressure unit and fly-ash separator.
The bottom position that passes airtight casing at pull bar is provided with sealing shroud, guarantees the rectilinear motion up and down of pull bar on the one hand, thus the position gas leakage that can avoid pull bar to be connected on the other hand with airtight casing; Between capping lever and column, install a reduction torsion spring additional, can be convenient to deashing and finish the rear seal-cover return.
Description of drawings
Fig. 1 faces structural representation for the dish spring tool specially for attaching and detaching of this disk brake.
Embodiment
Referring to Fig. 1,1. airtight casings among the figure, 2. capping, 3. sense channel, 4. detected container, 5. the capping lever, 6. pull bar, 7. reverse lever, 8. drive cylinder, 9. support, 10. sealing shroud, 11. pressure unit connectors, 12. reduction torsion springs.
Embodiment: a kind of pressure unit high pressure spacer assembly among the figure, contain closed box, this casing one side is provided with sense channel and is communicated with detected container, opposite side is provided with the pressure unit connector, be provided with column in the described airtight casing, this column upper end is hinged with the capping lever, and this capping lever one end is provided with the capping with sense channel bore coupling; The other end is connected with pull bar, and the base plate that this pull bar passes this airtight casing is connected with the driving mechanism of outside.Described driving mechanism contains reverse lever and drives cylinder, on the piston rod that drives cylinder, be fixedly connected with disk body, one end of this disk body and reverse lever is hinged, and this reverse lever middle part is hinged with support, and the other end of this reverse lever is connected with bearing pin by chute with described pull bar.The position that described pull bar passes airtight casing is provided with sealing shroud, and pull bar slides up and down in the sealing cover.Be set with reduction torsion spring on the twisted axis between described capping lever and the column, the acting force of this reduction torsion spring is towards the direction of capping lever opening capping.Described pull bar upper end is connected with chute on the capping lever by bearing pin, and the bottom of this pull bar penetrates the bottom that is installed in airtight casing.Described capping is a resilient material.
The course of work of this device:
This device and detected container are installed together, promptly the casing with fly-ash separator is installed together, sense channel and fly-ash separator air-purifying chamber are communicated with, pressure unit is connected on the connector on airtight casing top, under the normal operating conditions of fly-ash separator, the capping of this device is opened, this moment, pressure unit can pass through this airtight casing, sense channel and fly-ash separator are communicated with, to detect the fly-ash separator internal pressure low excessively when pressure unit, when needing reverse gas cleaning, control system drives cylinder moving, drives pull bar, the capping lever covers capping on sense channel, thereby keep apart pressure unit and fly-ash separator, at this time, carry out the work of high pressure reverse gas cleaning again, just can the disruptive pressure transmitter.After treating that deashing is finished, control system drives cylinder moving, drives pull bar, capping lever, makes the capping return.
Claims (6)
1. pressure unit high pressure spacer assembly, contain closed box, this closed box one side is provided with sense channel and is communicated with detected container, opposite side is provided with the pressure unit connector, it is characterized in that: be provided with column in the described closed box, this column upper end is hinged with the capping lever, and this capping lever one end is provided with the capping with sense channel bore coupling; The other end is connected with pull bar, and the base plate that this pull bar passes this closed box is connected with the driving mechanism of outside.
2. pressure unit high pressure spacer assembly according to claim 1, it is characterized in that: described driving mechanism contains reverse lever and drives cylinder, on the piston rod that drives cylinder, be fixedly connected with disk body, one end of this disk body and reverse lever is hinged, this reverse lever middle part is hinged with support, and the other end of this reverse lever is connected with bearing pin by chute with described pull bar.
3. pressure unit high pressure spacer assembly according to claim 1, it is characterized in that: the position that described pull bar passes closed box is provided with sealing shroud, and pull bar slides up and down in the sealing cover.
4. pressure unit high pressure spacer assembly according to claim 1 is characterized in that: be set with reduction torsion spring on the twisted axis between described capping lever and the column, the acting force of this reduction torsion spring is towards the direction of capping lever opening capping.
5. pressure unit high pressure spacer assembly according to claim 1 is characterized in that: described pull bar upper end is connected with chute on the capping lever by bearing pin, and the bottom of this pull bar penetrates the bottom that is installed in closed box.
6. pressure unit high pressure spacer assembly according to claim 1 is characterized in that: described capping is a resilient material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010521447 CN101968392B (en) | 2010-10-27 | 2010-10-27 | High-pressure isolation device for pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010521447 CN101968392B (en) | 2010-10-27 | 2010-10-27 | High-pressure isolation device for pressure transmitter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101968392A CN101968392A (en) | 2011-02-09 |
| CN101968392B true CN101968392B (en) | 2013-07-24 |
Family
ID=43547579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010521447 Expired - Fee Related CN101968392B (en) | 2010-10-27 | 2010-10-27 | High-pressure isolation device for pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101968392B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148974A (en) * | 2013-01-30 | 2013-06-12 | 上海安可泰环保科技有限公司 | Pressure sensing device applied in high-voltage environment |
| CN110057491B (en) * | 2019-05-22 | 2021-03-23 | 深圳市美信泰电子有限公司 | High-temperature sensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2046568U (en) * | 1989-04-22 | 1989-10-25 | 郝鸿吉 | Switch for pressure meter with damping unit |
| CN2282096Y (en) * | 1996-09-23 | 1998-05-20 | 韩东平 | Pull-push stop valve |
| US5856615A (en) * | 1997-02-12 | 1999-01-05 | Easter; Basil O. | Relief valve testing mechanism |
| CN201852669U (en) * | 2010-10-27 | 2011-06-01 | 吴传仪 | High-pressure isolation apparatus of pressure transmitter |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87217539U (en) * | 1987-12-30 | 1988-08-31 | 苏恩远 | Horizontal automatic discharge valve |
| CN2054087U (en) * | 1989-04-06 | 1990-03-07 | 杨兴绵 | Hand pump |
| US7237439B1 (en) * | 2005-02-23 | 2007-07-03 | Rutherford Robert B | Pressure sensor over-pressure protection |
-
2010
- 2010-10-27 CN CN 201010521447 patent/CN101968392B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2046568U (en) * | 1989-04-22 | 1989-10-25 | 郝鸿吉 | Switch for pressure meter with damping unit |
| CN2282096Y (en) * | 1996-09-23 | 1998-05-20 | 韩东平 | Pull-push stop valve |
| US5856615A (en) * | 1997-02-12 | 1999-01-05 | Easter; Basil O. | Relief valve testing mechanism |
| CN201852669U (en) * | 2010-10-27 | 2011-06-01 | 吴传仪 | High-pressure isolation apparatus of pressure transmitter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101968392A (en) | 2011-02-09 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20151027 |
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| EXPY | Termination of patent right or utility model |