CN106950331A - Hot-water boiler water treatment agent anticorrosion-antiscaling property test device and method of testing - Google Patents
Hot-water boiler water treatment agent anticorrosion-antiscaling property test device and method of testing Download PDFInfo
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- CN106950331A CN106950331A CN201710181578.5A CN201710181578A CN106950331A CN 106950331 A CN106950331 A CN 106950331A CN 201710181578 A CN201710181578 A CN 201710181578A CN 106950331 A CN106950331 A CN 106950331A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 156
- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 36
- 238000010998 test method Methods 0.000 title abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 230000007797 corrosion Effects 0.000 claims abstract description 21
- 238000005260 corrosion Methods 0.000 claims abstract description 21
- 230000001105 regulatory effect Effects 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000005764 inhibitory process Effects 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 10
- 238000002474 experimental method Methods 0.000 claims description 8
- 239000003814 drug Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000002401 inhibitory effect Effects 0.000 claims description 2
- 230000000116 mitigating effect Effects 0.000 claims description 2
- 239000008400 supply water Substances 0.000 claims description 2
- 238000013268 sustained release Methods 0.000 claims description 2
- 239000012730 sustained-release form Substances 0.000 claims description 2
- 239000003112 inhibitor Substances 0.000 description 8
- 239000008233 hard water Substances 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/02—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using precipitation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a kind of hot-water boiler water treatment agent anticorrosion-antiscaling property test device and method of testing, test device includes autoclave, feedwater and circulation water unit, heating unit and pressure regulating unit, and the heating unit is arranged on the kettle of autoclave and heated to the water in autoclave；The pressure regulating unit is arranged on to be connected with effluent pipe mouth on the outlet pipeline of autoclave and the water in autoclave is adjusted.The test device and method of testing of the present invention more conforms to the actually used situation of hot-water boiler, and the numerical value of test is more accurate.Simultaneously, this method is recorded to multi-parameters such as operation heat time, heating-up temperature, circulating water flows, pass through the weight to generation dirt amount and the weightless calculating of test tube, the scale inhibition performance and corrosion inhibition rate of hot-water boiler water treatment agent are respectively obtained, the performance of hot-water boiler water treatment agent is judged with this.
Description
Technical field
The present invention relates to a kind of hot-water boiler water treatment agent anticorrosion-antiscaling property test device and method of testing.
Background technology
Often water is heated in some industrial productions or daily life.And water can usually produce substantial amounts of incrustation scale
And corrosion, the problem of hot-water boiler is cleaned so not only is brought, the service efficiency and service life of boiler has also been had a strong impact on.Cause
This generally requires to use anti-incrustation corrosion inhibitor, reduces the generation of incrustation scale and corrosion.
Therefore, it is necessary to which the performance to anti-incrustation corrosion inhibitor is detected accordingly.And it is no special in our countries at present
For hot-water boiler water treatment agent anticorrosion-antiscaling property test device and method of testing, similar anti-incrustation corrosion inhibitor performance inspection
Survey method has two kinds of static method and dynamic method, and both test methods are all that test piece is hung in water sample, then heat water sample, leads to
Cross mass change analysis powder performance before and after test piece experiment.But it is due to that hot-water boiler one side boiler tube is pressure-bearing in running status
And be directly heated, the water inside another aspect hot-water boiler is in a kind of forced circulation state, so both above experiment dress
The environment of fouling corrosion residing for hot-water boiler boiler tube can not be reflected completely with method by putting, and can not truly reflect that anti-incrustation corrosion inhibitor exists
All there is very big difference in the impact of performance under boiler operatiopn state, therefore, both detection methods, no with the reality of hot-water boiler
The test of hot-water boiler water treatment agent anticorrosion-antiscaling property can be used for.
The content of the invention
The invention reside in the shortcoming for overcoming prior art and deficiency, there is provided a kind of survey of hot-water boiler anti-incrustation corrosion inhibitor performance
Trial assembly is put, and a kind of detection method of anti-incrustation corrosion inhibitor performance.
The present invention is realized by following technical scheme：A kind of hot-water boiler water treatment agent anticorrosion-antiscaling property
Test device, including autoclave, feedwater and circulation water unit, heating unit and pressure regulating unit, the autoclave include kettle
The kettle cover that body and the kettle are connected；The kettle is provided with a water inlet pipe mouth；The kettle cover is provided with an effluent pipe mouth；It is described to give
Water and circulation water unit are connected by the water inlet pipe mouth of inlet pipeline and autoclave to supply water to autoclave and makes water by circulating pump
With certain flow rate in system internal circulation flow；The heating unit is arranged on the kettle of autoclave by heating rod to autoclave
Interior water is heated；The pressure regulating unit is arranged on the outlet pipeline of autoclave and is connected with effluent pipe mouth to autoclave
Interior water is adjusted.
Further, feeding water and circulate water unit includes water tank and water pump, and the water tank is entered by water pump and autoclave
Hose nozzle is connected.
Further, feedwater and the circulation water unit also includes check-valves, flowmeter one, filter, and outside is set
The accessory devices such as standby pre-terminated active joint；The accessory device is arranged between water pump and autoclave.
Further, the heating unit includes electrical heating wire and temperature-control variable-pressure device；The electrical heating wire is arranged on high pressure
Inside kettle, and it is connected by the temperature-control variable-pressure device with external power supply.When autoclave water temperature reaches set ceiling temperature
When, disconnected by temperature-control variable-pressure device with extraneous power supply.When autoclave water temperature drops to set lower limit temperature, pass through temperature
Control transformer is heating unit increase heating power.
Further, the heating unit also includes a voltage-stablizer, and the temperature-control variable-pressure device is added by the voltage-stablizer with electricity
Heated filament is connected.
Further, feed water and circulate water unit and also include flowmeter two, flow sensor and autocontrol valve, flow is passed
Sensor connection autocontrol valve can control Water discharge flow speed according to demand.
Further, the pressure regulating unit include safety valve and needle-valve, the needle-valve be arranged on flow sensor with
Between automatic regulating valve.
In addition, the test of water treatment agent anticorrosion-antiscaling property test device and the method for calculating scale inhibition performance, step are as follows：
1) start water pump, the water that water treatment agent is not added is injected in autoclave, in the testing time, certain pressure and temperature
Under degree, first institute's fouling sample on the experiment collecting pipe of the autoclave is collected；Tubulose sample unit area amount of scale buildup is pressedCalculate, calculate the amount of scale buildup k for the hard water for not adding medicament0；
2) start water pump, the water for adding antisludging agent is injected in autoclave, in the testing time, certain pressure and temperature
Under, first institute's fouling sample on the experiment collecting pipe of the autoclave is collected；Tubulose sample unit area amount of scale buildup presses step 1)
Publicity calculate add medicament hard water amount of scale buildup k1；
3) scale inhibition performance of anti-incrustation corrosion inhibitor is calculated,
Beneficial effects of the present invention are：The present invention targetedly examines dedicated for the performance of hot-water boiler corrosion inhibiting and descaling agent
Survey, from the simulation of the many-side such as pressure, temperature, water flow velocity and closer to the environmental condition of hot-water boiler, make the numerical value of test more
Accurately, make the situation of result more closing to reality production, can truly reflect anti-incrustation corrosion inhibitor under hot-water boiler running status
The impact of performance.
Brief description of the drawings
Fig. 1 is test device structural representation.
Embodiment
As shown in figure 1, a kind of hot-water boiler water treatment agent anticorrosion-antiscaling property test device, including autoclave 1, give
Water and circulation water unit 2, heating unit 3 and pressure regulating unit 4, the autoclave 1 include what kettle 11 was connected with the kettle
Kettle cover 12；The kettle is provided with a water inlet pipe mouth 111；The kettle cover is provided with an effluent pipe mouth 121；The feedwater and circulation
Water unit is connected by the water inlet pipe mouth 111 of inlet pipeline and autoclave and supplied water to autoclave, and the heating unit is arranged on height
Heated on the kettle for pressing kettle to the water in autoclave；The pressure regulating unit be arranged on the outlet pipeline of autoclave with
Effluent pipe mouth 121 is connected, and the water in autoclave is adjusted.Floss hole 112 is arranged at the bottom of kettle 11.
Feedwater and the circulation water unit 2 includes water tank 21 and water pump 22, and the water tank 21 passes through water pump and autoclave
Water inlet pipe mouth 111 is connected.
Feedwater and the circulation water unit 2 also includes check-valves 23, flowmeter 1, filter 25, and external equipment
The accessory devices such as pre-terminated active joint；The accessory device is arranged between water pump and autoclave.
The heating unit 3 includes electrical heating wire 31 and temperature-control variable-pressure device 32；The electrical heating wire 31 is arranged on autoclave
In internal heating tube, and it is connected by the temperature-control variable-pressure device 32 with external power supply.Set by being reached when autoclave water temperature
During ceiling temperature, disconnected by temperature-control variable-pressure device with extraneous power supply.When autoclave water temperature drops to set lower limit temperature
When, it is that heating unit increases heating power by temperature-control variable-pressure device.
The heating unit also includes a voltage-stablizer, and the temperature-control variable-pressure device 32 passes through the voltage-stablizer 33 and electrical heating wire 31
Connection.
Feedwater and the circulation water unit includes flowmeter 25, flow sensor 7 and autocontrol valve 6, flow sensor
7 connection autocontrol valves 6 can control Water discharge flow speed according to demand.
The pressure regulating unit 4 includes safety valve 41 and needle-valve 42, and the needle-valve 42 is arranged on flow sensor 7 and oneself
Between dynamic regulating valve 6, wherein needle-valve 42 can also be the controlling switch valve such as ball valve.
The method of the test sum of water treatment agent anticorrosion-antiscaling property test device, the determination step of anticorrosion-antiscaling property is such as
Under：
(1) measure of scale inhibition performance
1) water pump is started, in the water injection detection means that will not add water treatment agent, in the testing time, certain pressure,
At temperature and water flow velocity, institute's fouling sample on experiment collecting pipe is collected；Tubulose sample unit area amount of scale buildup is pressedCalculate, calculate the amount of scale buildup k for the water for not adding medicament0；
2) water pump is started, in the water injection detection means that antisludging agent will be added, in the testing time, certain pressure, temperature
Under water flow velocity, institute's fouling sample on experiment collecting pipe is collected；Tubulose sample unit area amount of scale buildup press step 1) public affairs
Show the amount of scale buildup k for calculating the water for adding medicament1；
3) scale inhibition performance of antisludging agent is calculated,
(2) corrosion inhibition is tested
1) water pump is started, in the water injection detection means that will not add water treatment agent, in the testing time, certain pressure,
At temperature and water flow velocity, the corrosion condition of coupon is detected；
2) water pump is started, in the water injection detection means that sustained release agent will be added, in the testing time, certain pressure, temperature
Under water flow velocity, the corrosion condition of coupon is detected；
3) compare the etch state of the coupon under two kinds of situations, judge water treatment agent corrosion mitigating effect.
The foregoing is intended to be a preferred embodiment of the present invention, but protection scope of the present invention is not limited thereto,
Any one skilled in the art in the technical scope of present disclosure, technique according to the invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (9)
1. a kind of hot-water boiler water treatment agent anticorrosion-antiscaling property test device, including autoclave, feedwater and recirculated water list
Member, heating unit and pressure regulating unit, the autoclave include the kettle cover that kettle and the kettle are connected；The kettle is provided with
One water inlet pipe mouth；The kettle cover is provided with an effluent pipe mouth；Feedwater and the circulation water unit passes through inlet pipeline and autoclave
Water inlet pipe mouth connect to autoclave supply water and make water with certain flow rate in system internal circulation flow by circulating pump；The heating
Unit is arranged on the kettle of autoclave and heated by heating tube to the water in autoclave；The pressure regulating unit is set
It is connected on the outlet pipeline of autoclave with effluent pipe mouth and the water in autoclave is adjusted.
2. hot-water boiler according to claim 1 water treatment agent anticorrosion-antiscaling property test device, it is characterised in that
Feedwater and circulation water unit include water tank and water pump, and the water tank is connected by water pump with the water inlet pipe mouth of autoclave.
3. water treatment agent anticorrosion-antiscaling property test device according to claim 1 or 2, it is characterised in that described to give
Water and circulation water unit also include check-valves, flowmeter one, filter.
4. hot-water boiler according to claim 1 water treatment agent anticorrosion-antiscaling property test device, it is characterised in that
The heating unit includes electrical heating wire and temperature-control variable-pressure device；The electrical heating wire is arranged in autoclave in heating tube, and is led to
The temperature-control variable-pressure device is crossed to be connected with external power supply.
5. the hot-water boiler water treatment agent anticorrosion-antiscaling property test device according to claim 1 or 4, its feature exists
In the heating unit also includes a voltage-stablizer, and the temperature-control variable-pressure device is connected by the voltage-stablizer with electrical heating wire.
6. hot-water boiler according to claim 1 water treatment agent anticorrosion-antiscaling property test device, it is characterised in that
Feedwater and the circulation water unit includes flowmeter two, flow sensor and autocontrol valve, the automatic control of flow sensor connection
Valve processed can control recirculated water flow velocity according to demand.
7. hot-water boiler according to claim 1 water treatment agent anticorrosion-antiscaling property test device, it is characterised in that
The pressure regulating unit includes safety valve and needle-valve, and the needle-valve is arranged between flow sensor and automatic regulating valve.
8. hot-water boiler as described in claim any one of the 1-7 test side of water treatment agent scale-inhibiting properties test device
Method, it is characterised in that step is as follows：
1) water pump is started, in the water injection detection means that will not add water treatment agent, in the testing time, certain pressure, temperature
Under water flow velocity, institute's fouling sample on experiment collecting pipe is collected；Tubulose sample unit area amount of scale buildup is pressedCalculate, calculate the amount of scale buildup k for the water for not adding medicament0；
2) start water pump, the water for adding antisludging agent is injected in detection means, in the testing time, certain pressure, temperature and water
Under flow velocity, institute's fouling sample on experiment collecting pipe is collected；Tubulose sample unit area amount of scale buildup is by step 1) publicity based on
Calculate the amount of scale buildup k for drawing the water for adding medicament1；
3) scale inhibition performance of antisludging agent is calculated,
9. hot-water boiler as described in claim any one of the 1-7 test side of water treatment agent corrosion inhibition test device
Method, it is characterised in that step is as follows：
1) water pump is started, in the water injection detection means that will not add water treatment agent, in the testing time, certain pressure, temperature
Under water flow velocity, the corrosion condition of coupon is detected；
2) start water pump, the water for adding sustained release agent is injected in detection means, in the testing time, certain pressure, temperature and water
Under flow velocity, the corrosion condition of coupon is detected；
3) compare the etch state of the coupon under two kinds of situations, judge water treatment agent corrosion mitigating effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710181578.5A CN106950331A (en) | 2017-03-24 | 2017-03-24 | Hot-water boiler water treatment agent anticorrosion-antiscaling property test device and method of testing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710181578.5A CN106950331A (en) | 2017-03-24 | 2017-03-24 | Hot-water boiler water treatment agent anticorrosion-antiscaling property test device and method of testing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107632110A (en) * | 2017-10-24 | 2018-01-26 | 南京科技职业学院 | A kind of organic phosphine acids antisludging agent resistance to elevated temperatures measure device and analysis method |
| CN107817209A (en) * | 2017-09-28 | 2018-03-20 | 深圳市特种设备安全检验研究院 | Anti-incrustation corrosion inhibitor performance test dynamic analog device and its control method |
| CN112034131A (en) * | 2020-09-15 | 2020-12-04 | 唐山格瑞德设备清洗有限公司 | Device and method for observing hard water heating scaling on inner surface of steel pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107817209A (en) * | 2017-09-28 | 2018-03-20 | 深圳市特种设备安全检验研究院 | Anti-incrustation corrosion inhibitor performance test dynamic analog device and its control method |
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| CN112034131A (en) * | 2020-09-15 | 2020-12-04 | 唐山格瑞德设备清洗有限公司 | Device and method for observing hard water heating scaling on inner surface of steel pipe |
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