CN203155676U - Anti-clogging device for pressure measuring pipe - Google Patents
Anti-clogging device for pressure measuring pipe Download PDFInfo
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- CN203155676U CN203155676U CN 201320163840 CN201320163840U CN203155676U CN 203155676 U CN203155676 U CN 203155676U CN 201320163840 CN201320163840 CN 201320163840 CN 201320163840 U CN201320163840 U CN 201320163840U CN 203155676 U CN203155676 U CN 203155676U
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- pressure measuring
- pressure
- valve
- blowback
- pipeline
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Abstract
The utility model disclose an anti-clogging device for a pressure measuring pipe, which comprises a one-time pressure measuring valve and a twice pressure measuring valve, and is characterized in that a first stop valve is arranged between the one-time pressure measuring valve and the twice pressure measuring valve; a back flushing pipeline is additionally arranged between the one-time pressure measuring valve and the first stop valve; a second stop valve, a pressure gauge and a back flushing gas source pressure measuring valve are arranged on the back flushing pipeline; and the back flushing pipeline is communicated with a high pressure nitrogen pipeline. According to the device, high pressure nitrogen of a circulation air supplement system is used, and via the stop valve group, on-line back flushing of the pressure measuring pipeline is realized through full-automatic timing or a manual mode, so that the problems that as the pressure measuring pipe is clogged by positive pressure and solid dust, operating personnel are needed to frequently dredge the pressure measuring pipe, and the production of equipment is stopped due to the clogging of the pipe are solved.
Description
Technical field
The utility model relates to a kind of pressure pipe anti-block apparatus, belongs to mechanical field.
Background technology
The dried stove that puts out is to utilize circulating cooling gas (using nitrogen) with the device of red coke cooling more, for preventing excessively mixing airborne oxygen and cause coke loss and other danger, should guarantee that body of heater is little positive negative pressure state, so that furnace pressure detects is very crucial.In cooling procedure, can produce a large amount of powder because of dry coke quenching in the actual production, the elegant pressure pipe plug plug that causes, pressure detecting is inaccurate maybe can't to detect problem, and furnace pressure controlling the circulating fan rotating speed and adorning burnt rhythm as key parameter, will influence the whole dried stove production of putting out when breaking down.
Summary of the invention
In order to overcome above-mentioned deficiency, the utility model provides the pressure pipe anti-block apparatus in a kind of dry coke quenching furnace pressure detection, by using the high pressure nitrogen of circulation air-makeup system, via the stop valve group, by the PLC programmable control method, full-automatic regularly, manual mode realizes online blowback to pressure pressure pipeline, solve because of malleation, solid kind dust to pressure pipe plug plug, the equipment stopping production problem that needs the frequent mediation of operating personnel and cause thus.
The technical solution adopted in the utility model is: a kind of pressure pipe anti-block apparatus, comprise pressure measuring valve and secondary pressure measuring valve, it is characterized in that: between pressure measuring valve and secondary pressure measuring valve, be provided with first stop valve, between pressure measuring valve and first stop valve, set up blowback and sweep pipeline, blowback is swept pipeline and is provided with second stop valve, Pressure gauge and blowback source of the gas pressure measuring valve, and blowback is swept pipeline and communicated with the high pressure nitrogen pipeline.
Further, described anti-block apparatus is taked full-automatic regularly blowback or manually blowback pattern control.
Further, described full-automatic timing blowback is to set blowback cycle and blowback time by the operative employee according to empirical value; Manually blowback is to cooperate the manual blowdown door to carry out full pipeline by professional spot check personnel to purge.
Conventional pressure detecting is generally: be provided with pressure measuring valve, secondary pressure measuring valve, pressure transmitter, blowoff valve on the pressure pipe successively.Being designed to of the technical program: between pressure measuring valve and secondary pressure measuring valve, add a back-flushing valve group, and realize the automatic control of valve group by program, specific as follows:
(1) the back-flushing valve group is made up of two stop valve first stop valves and second stop valve and Pressure gauge, and is installed between pressure measuring valve and secondary pressure measuring valve, and its action is controlled by PLC; First stop valve mainly acts on: open under the normal condition, close during blowback, cut off the pressure pipe to path between transmitter, prevent that dust from flowing in the other direction, and avoid the transmitter overvoltage stressed, the protection transmitter; Second stop valve mainly acts on: close under the normal condition, open during blowback, the pressure pipeline is carried out blowback; Pressure gauge mainly acts on: indication blowback pressure, and be convenient to the spot check personnel and confirm that blowback pressure is normal; The blowback source of the gas draws the high pressure nitrogen of self-loopa air-makeup system.
(2) the stop valve group is controlled by PLC, regularly the pressure pipeline is carried out anti-blocking blowback; The pressure history data of PLC are quoted when system carries out blowback, substitute the current pressure value and control in short-term, prevent from causing the control system imbalance because purging the pressure oscillation that causes in short-term.
The pressure pipe anti-block apparatus that the utility model provides, the beneficial effect that brings:
(1) this patent is intended to prevent the dried stove pressure pipeline blockage of putting out, and the combined process actual conditions are carried out the timing blowback to the pressure pipeline;
(2) by the PLC programming, the steady control of working pressure substitution value implementation procedure pressure and the dried ordinary production of putting out stove realize the online blowback of pressure pipeline;
(3) by manually-operated gate, and compounding practice interface manual function (when manually clearing up only working pressure substitution value control), can realize full pipeline sweeping.
Below in conjunction with drawings and Examples the utility model is described further.
Description of drawings
Fig. 1 is structural representation of the present utility model.
1 for the pressure pipe among the figure, and 2 is a pressure measuring valve, and 3 be the secondary pressure measuring valve, and 4 is pressure transmitter, and 5 is blowoff valve, and 6 is first stop valve, and 7 is second stop valve, and 8 is Pressure gauge, and 9 is blowback source of the gas pressure measuring valve, and 10 sweep pipeline for blowback, and 11 is coke dry quenching furnace.
The specific embodiment
Embodiment:
As shown in Figure 1, a kind of pressure pipe anti-block apparatus, be provided with pressure measuring valve 2, secondary pressure measuring valve 3, pressure transmitter 4, blowoff valve 5 on the pressure pipe 1 successively, it is characterized in that: between pressure measuring valve 2 and secondary pressure measuring valve 3, be provided with first stop valve 6, between pressure measuring valve 2 and first stop valve 6, set up blowback and sweep pipeline 10, blowback is swept pipeline 10 and is provided with second stop valve 7, Pressure gauge 8 and blowback source of the gas pressure measuring valve 9, and blowback is swept pipeline 10 and communicated with the high pressure nitrogen pipeline.
Concrete preparation method is: the back-flushing valve group is installed between pressure measuring valve and secondary pressure measuring valve, and the blowback source of the gas draws the high pressure nitrogen pipeline of self-loopa air-makeup system, and the setting pressure indicating meter makes things convenient for the spot check personnel that blowback pressure is carried out spot check on the source of the gas pipeline; In PLC, write corresponding control program, divide automatically regularly blowback, manual two kinds of patterns of blowback: when full-automatic customization is controlled, set blowback cycle and blowback time by the operative employee according to empirical value; Manually during blowback, cooperate the manual blowdown door to carry out full pipeline by professional spot check or O﹠M personnel and purge; Programming working pressure substitution value is carried out parameters of technique process control.Clogging does not appear in dry coke quenching pressure pipeline since this blowback system uses.
Claims (2)
1. pressure pipe anti-block apparatus, comprise pressure measuring valve and secondary pressure measuring valve, it is characterized in that: between pressure measuring valve and secondary pressure measuring valve, be provided with first stop valve, between pressure measuring valve and first stop valve, set up blowback and sweep pipeline, blowback is swept pipeline and is provided with second stop valve, Pressure gauge and blowback source of the gas pressure measuring valve, and blowback is swept pipeline and communicated with the high pressure nitrogen pipeline.
2. pressure pipe anti-block apparatus according to claim 1 is characterized in that: described anti-block apparatus is taked full-automatic regularly blowback or manually blowback pattern control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320163840 CN203155676U (en) | 2013-04-03 | 2013-04-03 | Anti-clogging device for pressure measuring pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320163840 CN203155676U (en) | 2013-04-03 | 2013-04-03 | Anti-clogging device for pressure measuring pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203155676U true CN203155676U (en) | 2013-08-28 |
Family
ID=49016900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320163840 Expired - Fee Related CN203155676U (en) | 2013-04-03 | 2013-04-03 | Anti-clogging device for pressure measuring pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203155676U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104258587A (en) * | 2014-09-26 | 2015-01-07 | 安徽淮化股份有限公司 | Negative steam-adding device of vacuum equipment instrument for producing industrial urea and use method thereof |
| CN106670191A (en) * | 2017-03-09 | 2017-05-17 | 聊城信源集团有限公司 | Anti-blocking device for high-dust measuring pressure tapping pipeline |
| CN111076861A (en) * | 2020-01-07 | 2020-04-28 | 江苏凯弘节能环保科技有限公司 | Anti-blocking five-group valve and control method thereof |
-
2013
- 2013-04-03 CN CN 201320163840 patent/CN203155676U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104258587A (en) * | 2014-09-26 | 2015-01-07 | 安徽淮化股份有限公司 | Negative steam-adding device of vacuum equipment instrument for producing industrial urea and use method thereof |
| CN106670191A (en) * | 2017-03-09 | 2017-05-17 | 聊城信源集团有限公司 | Anti-blocking device for high-dust measuring pressure tapping pipeline |
| CN111076861A (en) * | 2020-01-07 | 2020-04-28 | 江苏凯弘节能环保科技有限公司 | Anti-blocking five-group valve and control method thereof |
| CN111076861B (en) * | 2020-01-07 | 2021-10-08 | 江苏凯弘节能环保科技有限公司 | Anti-blocking five-group valve and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20190403 |