CN106017824A - Pressure resistance testing method of boiler - Google Patents
Pressure resistance testing method of boiler Download PDFInfo
- Publication number
- CN106017824A CN106017824A CN201610308137.2A CN201610308137A CN106017824A CN 106017824 A CN106017824 A CN 106017824A CN 201610308137 A CN201610308137 A CN 201610308137A CN 106017824 A CN106017824 A CN 106017824A
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- CN
- China
- Prior art keywords
- pressure
- boiler
- test
- voltage
- leakage
- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention provides a pressure resistance testing method of a boiler. The method comprises: impurities on a surface of a pressed compartment are removed; isolation of pipes and safety valves inside and outside a boiler is carried out; two pressure gauges in a checking safety period are installed at the boiler; a pressure testing pump is debugged, so that the pressure can increase slowly at a rate of 2 KPa\min; the pressure increases slowly until a working pressure is reached; pressure increasing is stopped temporarily and whether a leakage or abnormal phenomenon occurs is checked; and then the pressure increases continuously until a testing pressure is reached, the state is kept for 20min, and whether a leakage phenomenon occurs within the period is observed. Demineralized water is used for pressure resistance testing instead of water corroding the boiler materials. According to the invention, the testing method can be operated simply and conveniently; and the measurement process is safe and reliable and the boiler is protected from being damaged.
Description
Technical field
The present invention relates to boiler technical field of nondestructive testing, particularly a kind of boiler voltage-withstand test method.
Background technology
Boiler needs to do voltage-withstand test after long-time use, to ensure the safe operation of equipment.Prior art
There is presently no similar lossless voltage-withstand test method.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of boiler voltage-withstand test method, it is characterised in that
Comprise the following steps:
Remove the impurity on pressure-containing parts surface；
Pipeline outer in the range of boiler, relief valve are cut off；
Boiler should fill two Pressure gauges in verifying the qualified phase, and its range should be 2-3 times of test pressure,
Precision is not less than 1.5 grades；
Debugging hydraulic test pump, enable to guarantee pressure according to 2KPa the speed of min slowly rise；Slowly boosting
To operating pressure；
Suspend boosting, check whether there is leakage or abnormal phenomena；
Continue to boost to test pressure, keep 20min, and whether have leakage in observing this time；
Should guard against with water of pressure test has corrosion to boiler material, should use demineralized water；
The medium temperature of pressure test should be not less than the dew point temperature of air；Pressure-containing parts to alloy material,
Brittle transition temperature that medium temperature should be higher than that steel grade used or the Data Control specified according to boiler maker.
It is preferred that before pressure test pressurization, all must not have residual gas in participating in all parts of test.
It is preferred that when doing pressure test, if ambient temperature around is less than 5 DEG C, it should take effectively
Antifreezing measures.
It is preferred that organic heat carrier furnace pressure test medium must use Single Medium, the organic heat of general employing
Carrier.
The method have the advantages that
The boiler voltage-withstand test method that the present invention provides is simple to operation, and it is reliable to measure process safety, to boiler
Not damage itself.
Certainly, the arbitrary product implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.
Detailed description of the invention
It is clearly and completely described below in conjunction with the technical scheme in the embodiment of the present invention, it is clear that institute
The embodiment described is only a part of embodiment of the present invention rather than whole embodiments.Based on the present invention
In embodiment, it is all that those of ordinary skill in the art are obtained under not making creative work premise
Other embodiments, broadly falls into the scope of protection of the invention.
The invention provides a kind of boiler voltage-withstand test method, it is characterised in that comprise the following steps:
Remove the impurity on pressure-containing parts surface；
Pipeline outer in the range of boiler, relief valve are cut off；
Boiler should fill two Pressure gauges in verifying the qualified phase, and its range should be 2-3 times of test pressure,
Precision is not less than 1.5 grades；
Debugging hydraulic test pump, enable to guarantee pressure according to 2KPa the speed of min slowly rise；Slowly boosting
To operating pressure；
Suspend boosting, check whether there is leakage or abnormal phenomena；
Continue to boost to test pressure, keep 20min, and whether have leakage in observing this time；
Should guard against with water of pressure test has corrosion to boiler material, should use demineralized water；
The medium temperature of pressure test should be not less than the dew point temperature of air,；Compression zone to alloy material
Part, brittle transition temperature that medium temperature should be higher than that steel grade used or the data control specified according to boiler maker
System；
Before pressure test pressurization, in participating in all parts of test, all must not there is residual gas；
During pressure test, boiler uses the management personnel of unit should show up cooperation.
The boiler voltage-withstand test method that the present invention provides is simple to operation, and it is reliable to measure process safety, to boiler
Not damage itself.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.Preferred embodiment is not
There is all of details of detailed descriptionthe, be also not intended to the detailed description of the invention that this invention is only described.Obviously, root
According to the content of this specification, can make many modifications and variations.It is real that these are chosen and specifically described to this specification
Execute example, be to preferably explain the principle of the present invention and actual application, so that art technology
Personnel can be best understood by and utilize the present invention.The present invention is only by claims and four corner thereof and equivalence
The restriction of thing.
Claims (4)
1. boiler voltage-withstand test method, it is characterised in that comprise the following steps:
Remove the impurity on pressure-containing parts surface；
Pipeline outer in the range of boiler, relief valve are cut off；
Boiler should fill two Pressure gauges in verifying the qualified phase, and its range should be 2-3 times of test pressure,
Precision is not less than 1.5 grades；
Debugging hydraulic test pump, enable to guarantee pressure according to 2KPa the speed of min slowly rise；Slowly boosting
To operating pressure；
Suspend boosting, check whether there is leakage or abnormal phenomena；
Continue to boost to test pressure, keep 20min, and whether have leakage in observing this time；
Should guard against with water of pressure test has corrosion to boiler material, should use demineralized water；
The medium temperature of pressure test should be not less than the dew point temperature of air；Pressure-containing parts to alloy material,
Brittle transition temperature that medium temperature should be higher than that steel grade used or the Data Control specified according to boiler maker.
2. boiler voltage-withstand test method as claimed in claim 1, it is characterised in that before pressure test pressurization,
Residual gas all must not be had in participating in all parts of test.
3. boiler voltage-withstand test method as claimed in claim 1, it is characterised in that when doing pressure test,
If ambient temperature around is less than 5 DEG C, it should take effective antifreezing measures.
4. boiler voltage-withstand test method as claimed in claim 1, it is characterised in that organic heat carrier furnace is resistance to
Pressure test(ing) medium must use Single Medium, typically uses organic heat carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610308137.2A CN106017824A (en) | 2016-05-10 | 2016-05-10 | Pressure resistance testing method of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610308137.2A CN106017824A (en) | 2016-05-10 | 2016-05-10 | Pressure resistance testing method of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106017824A true CN106017824A (en) | 2016-10-12 |
Family
ID=57100563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610308137.2A Pending CN106017824A (en) | 2016-05-10 | 2016-05-10 | Pressure resistance testing method of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106017824A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649157A (en) * | 2020-12-17 | 2021-04-13 | 哈尔滨锅炉厂有限责任公司 | Device for detecting tightness of internal parts of boiler header and method for detecting tightness by using device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776509A (en) * | 2010-01-14 | 2010-07-14 | 西华大学 | Pressure resistance detecting device for petroleum underground tool |
| CN201803836U (en) * | 2010-06-29 | 2011-04-20 | 中国石油天然气股份有限公司 | Portable pressure testing device of blowout preventer |
| CN103364157A (en) * | 2013-07-30 | 2013-10-23 | 东方电气集团东方汽轮机有限公司 | System and method for testing water pressure of turbine cylinder |
| JP2013228339A (en) * | 2012-04-27 | 2013-11-07 | Nippon Steel & Sumitomo Metal | Water pressure testing apparatus and water pressure testing method for steel pipe |
| CN104359635A (en) * | 2014-11-24 | 2015-02-18 | 中国航空动力机械研究所 | Multifunctional all-working-condition metal elastic sealing ring testing device |
-
2016
- 2016-05-10 CN CN201610308137.2A patent/CN106017824A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776509A (en) * | 2010-01-14 | 2010-07-14 | 西华大学 | Pressure resistance detecting device for petroleum underground tool |
| CN201803836U (en) * | 2010-06-29 | 2011-04-20 | 中国石油天然气股份有限公司 | Portable pressure testing device of blowout preventer |
| JP2013228339A (en) * | 2012-04-27 | 2013-11-07 | Nippon Steel & Sumitomo Metal | Water pressure testing apparatus and water pressure testing method for steel pipe |
| CN103364157A (en) * | 2013-07-30 | 2013-10-23 | 东方电气集团东方汽轮机有限公司 | System and method for testing water pressure of turbine cylinder |
| CN104359635A (en) * | 2014-11-24 | 2015-02-18 | 中国航空动力机械研究所 | Multifunctional all-working-condition metal elastic sealing ring testing device |
Non-Patent Citations (1)
| Title |
|---|
| 陈道琰等: ""工业锅炉耐压试验检验工艺"", 《百度文库》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649157A (en) * | 2020-12-17 | 2021-04-13 | 哈尔滨锅炉厂有限责任公司 | Device for detecting tightness of internal parts of boiler header and method for detecting tightness by using device |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |