CN203786101U - Dynamic simulation testing device for chemical cleaning of power station boiler - Google Patents
Dynamic simulation testing device for chemical cleaning of power station boiler Download PDFInfo
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- CN203786101U CN203786101U CN201420031100.6U CN201420031100U CN203786101U CN 203786101 U CN203786101 U CN 203786101U CN 201420031100 U CN201420031100 U CN 201420031100U CN 203786101 U CN203786101 U CN 203786101U
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- fastening cap
- dynamic simulation
- chemical cleaning
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Abstract
The utility model discloses a dynamic simulation testing device for chemical cleaning of a power station boiler. The device comprises a circulating loop and an ultrasonic flow meter, wherein the circulating loop consists of a pipe sample cleaning clamping device and a circulating pump body, the ultrasonic flow meter is arranged on the circulating loop; the pipe sample cleaning clamping device comprises an upper fastening cap, a lower fastening cap, a plurality of circular test pieces and a circular heater, the upper fastening cap and the lower fastening cap are fastened by adopting an adjusting fastening screw and a flange, the circular test pieces are serially connected between the upper fastening cap and the lower fastening cap, and are connected through connecting rings; a thermocouple is inserted into the temperature measurement pipe of the upper fastening cap, and a temperature control instrument is connected between the thermocouple and the circular heater; a cleaning solution inlet is formed in the upper fastening cap, and a third valve and a second valve are arranged. The dynamic simulation testing device is accurate and effective, can evaluate the corrosion and cleaning effect of the cleaning solution in a manner of being approximate to practical engineering conditions; the device is convenient and fast to use, and the obtained testing data is accurate and has a good guidance action on the engineering application.
Description
Technical field
The utility model relates to station boiler cleaning technique field, is specifically related to a kind of station boiler chemical cleaning dynamic simulation tester.
Background technology
Station boiler runs to after certain hour, need to adopt chemical cleaning to remove the dirt that in operational process, heat-transfer surface generates (the main oxide taking iron is as main), to improve the thermal efficiency and the risk that reduces heating surface underdeposit corrosion of boiler.Before chemical cleaning, in laboratory, conventionally adopt static immersing or half dynamic apparatus (for example electric stirring or magnetic agitation), and dynamic test platform, evaluate corrosion and the cleaning performance of cleaning fluid, these two types of devices have following several respects shortcoming.
Static immersing or half dynamic apparatus:
1) cannot simulate the impact of flow velocity on tube wall oxide skin dissolution;
2) cannot simulate the impact of flow velocity on corrosion inhibiter corrosion mitigating effect;
3) can not simulate chemical cleaning,, rinsing, passivation cleaning boiler integrated artistic flow process.
Dynamic Experimentation Platform:
1) system complex, the workload of carrying out a test and expense are larger;
2) system water volume is excessive, cannot simulate the long-pending proportionate relationship of actual cleaning fluid volume and detergent line inner wall oxide surface, so that can not obtain concentration of iron temporal evolution trend in cleaning process pickle concentration that engineering application needs and cleaning fluid;
3) system sealing difficulty, unavoidably there will be cleaning fluid leakage situation in process of the test, and leakage point is difficult for processing.
Summary of the invention
The problem existing in order to solve above-mentioned prior art, the purpose of this utility model is to provide a kind of station boiler chemical cleaning dynamic simulation tester, accurate and effective more, and approach the corrosion of evaluation cleaning fluid and the cleaning performance of Practical Project condition; Install easy to use, fast, more accurately and to engineering application more has directive function to the test figure of acquisition.
For reaching above object, the utility model adopts following technical scheme:
A kind of station boiler chemical cleaning dynamic simulation tester, comprises the closed circuit that pipe sample cleaning clamping device and the circulation pump housing 1 form, and is arranged on the ultrasonic flow meter 2 on described closed circuit; Described pipe sample cleans clamping device and comprises that employing regulates fastening screw 8 and flange 9 to carry out fastening tightening cap 3, lower fastening cap 7 and be serially connected in the multiple ring-shaped samples 5 and the ring heater 6 that tighten between cap 3 and lower fastening cap 7,5 of described ring-shaped samples adopt abutment rings 4 to connect, described in the seam crossing that tightens between cap 3, ring-shaped sample 5, abutment ring 4, ring heater 6 and lower fastening cap 7 install acid-resistant and heat-resistant sealing gasket additional; Described ring-shaped sample 5 is that the boiler tube sample processing and fabricating of obtaining from scene forms; In the described temperature tube that tightens cap 3, be inserted with thermopair 10, between thermopair 10 and ring heater 6, be connected with temperature controller 11; Have filter washing water inlet described tightening on cap 3, and be provided with the 3rd valve K3 at filter washing water inlet place, between the 3rd valve K3 and filter washing water inlet and between ultrasonic flow meter 2, be provided with the second valve K2, on described lower fastening cap 7, have rinse liquid outlet, rinse liquid outlet place is provided with the first valve K1.
Described ring-shaped sample 5 inner and outer diameter are actual boiler tubing size, and length is that 10mm～300mm, thickness are 1.5mm～25mm, and inside surface is without oil stain, and the inside and outside surface of pipe sample keeps virgin state.
The described cap 3, lower fastening cap 7, abutment ring 4 of tightening processes by heat-proof corrosion resistant erosion organic material, as the link of analogue means.
Described abutment ring 4 is provided with 1～3 the test piece hanger bar that can freely dismantle, as the sprung parts of multiple corrosion coupons.
Described tightening has multiple holes on cap 3 and inserts various electrode, and described test unit can be freely connected with various on-line corrosion monitoring instruments.
Except ring-shaped sample 5 inwalls, the organic material that the parts inwall that all the other contact with cleaning fluid is heat-proof corrosion resistant erosion is made.
The making of device described above and test method, comprise the steps:
Step 1: adopt boiler tube sample to manufacture ring specimen 5;
Step 2: adopt the hanger bar on abutment ring 4, hang corrosion coupon;
Step 3: adopt and tighten cap 3, lower fastening cap 7, abutment ring 4, ring specimen 5 and ring heater 6 are connected in series, more fastening with regulating fastening screw 8 and flange 9 to carry out, be assembled into a sleeve pipe sample and clean clamping device;
Step 4: adopt the plastic piping of acid-resistant and heat-resistant material that the pipe sample cleaning clamping device assembling is connected with the circulation pump housing 1, composition closed circuit;
Step 5: thermopair 10 is put in the temperature tube that tightens cap 3, carries out temperature monitoring, and adopt temperature controller 11 to carry out temperature adjusting control to ring heater 6;
Step 6: close the first valve K1, open the second valve K2 and the 3rd valve K3, after adding cleaning fluid, the 3rd valve K3 closes the 3rd valve K3, make system in air-tight state, start ebullator 1, utilize the second valve K2 and ultrasonic flow meter 2 to regulate flow velocity to test design value, adopt ultrasonic flow meter 2 to detect the flow of pipeline.
Compared to the prior art, the utlity model has following advantage:
1) install, make simple, small;
2) can simulate the long-pending ratio condition of arbitrary actual cleaning fluid volume and detergent line inner wall oxide surface tests;
3) can simulate respectively the each cleaning step in actual cleaning operating mode, also can carry out continuously associated process steps test;
4) system sealing is functional, can carry out the test under aerobic and oxygen free condition;
5) can freely be connected with other online corrosion testing devices, widely applicable.
Brief description of the drawings
Accompanying drawing is the structural representation of the utility model test unit.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of station boiler chemical cleaning of the utility model dynamic simulation tester, comprises the closed circuit that pipe sample cleaning clamping device and the circulation pump housing 1 form, and is arranged on the ultrasonic flow meter 2 on described closed circuit; Described pipe sample cleans clamping device and comprises that employing regulates fastening screw 8 and flange 9 to carry out fastening tightening cap 3, lower fastening cap 7 and be serially connected in the multiple ring-shaped samples 5 and the ring heater 6 that tighten between cap 3 and lower fastening cap 7,5 of described ring-shaped samples adopt abutment ring 4 to connect, the described seam crossing tightening between cap 3, ring-shaped sample 5, abutment ring 4, ring heater 6 and lower fastening cap 7 installs acid-resistant and heat-resistant sealing gasket additional, guarantees that device is without leakage; Described ring-shaped sample 5 is that the boiler tube sample processing and fabricating of obtaining from scene forms; In the described temperature tube that tightens cap 3, be inserted with thermopair 10, between thermopair 10 and ring heater 6, be connected with temperature controller 11; Have filter washing water inlet described tightening on cap 3, and be provided with the 3rd valve K3 at filter washing water inlet place, between the 3rd valve K3 and filter washing water inlet and between ultrasonic flow meter 2, be provided with the second valve K2, on described lower fastening cap 7, have rinse liquid outlet, rinse liquid outlet place is provided with the first valve K1.
The utility model device not only can be simulated accurately solute effect and the lacing film corrosion speed of the condition heat exchanging tube-surface dirts such as the ratio of various flow velocitys, temperature, cleaning fluid volume and the surface area to be washed of cleaning process in Practical Project and be measured, also can in device, connect various electrode and freely be connected with the online corrosion such as galvanic couple meter, potentiostat, linear polarization corrosion measurer, AC impedance corrosion measurer, permanent electric weight/constant current charge corrosion measurer, photoelectricity corrosion measurer detecting instrument, carry out various Dynamic Corrosion monitoring tests.
Claims (6)
1. a station boiler chemical cleaning dynamic simulation tester, is characterized in that: comprise that pipe sample cleans the closed circuit of clamping device and the circulation pump housing (1) composition, is arranged on the ultrasonic flow meter (2) on described closed circuit; Described pipe sample cleans clamping device and comprises that employing regulates fastening screw (8) and flange (9) to carry out fastening tightening cap (3), lower fastening cap (7) and be serially connected in the multiple ring-shaped samples (5) and the ring heater (6) that tighten between cap (3) and lower fastening cap (7), between described ring-shaped sample (5), adopt abutment ring (4) to connect, described in the seam crossing that tightens between cap (3), ring-shaped sample (5), abutment ring (4), ring heater (6) and lower fastening cap (7) install acid-resistant and heat-resistant sealing gasket additional; Described ring-shaped sample (5) is that the boiler tube sample processing and fabricating of obtaining from scene forms; In the described temperature tube that tightens cap (3), be inserted with thermopair (10), between thermopair (10) and ring heater (6), be connected with temperature controller (11); Have filter washing water inlet described tightening on cap (3), and be provided with the 3rd valve (K3) at filter washing water inlet place, between the 3rd valve (K3) and filter washing water inlet and between ultrasonic flow meter (2), be provided with the second valve (K2), on described lower fastening cap (7), have rinse liquid outlet, rinse liquid outlet place is provided with the first valve (K1).
2. a kind of station boiler chemical cleaning dynamic simulation tester according to claim 1, it is characterized in that: described ring-shaped sample (5) inner and outer diameter is actual boiler tubing size, length is that 10mm～300mm, thickness are 1.5mm～25mm, inside surface is without oil stain, and the inside and outside surface of pipe sample keeps virgin state.
3. a kind of station boiler chemical cleaning dynamic simulation tester according to claim 1, it is characterized in that: described in tighten cap (3), lower fastening cap (7), abutment ring (4) and process by heat-proof corrosion resistant erosion organic material, as the link of analogue means.
4. a kind of station boiler chemical cleaning dynamic simulation tester according to claim 1, is characterized in that: described abutment ring (4) is provided with 1～3 the test piece hanger bar that can freely dismantle, as the sprung parts of multiple corrosion coupons.
5. a kind of station boiler chemical cleaning dynamic simulation tester according to claim 1, it is characterized in that: described in tighten and on cap (3), have multiple holes and insert various electrode, described test unit can be freely connected with various on-line corrosion monitoring instruments.
6. a kind of station boiler chemical cleaning dynamic simulation tester according to claim 1, is characterized in that: except ring-shaped sample (5) inwall, the organic material that the parts inwall that all the other contact with cleaning fluid is heat-proof corrosion resistant erosion is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420031100.6U CN203786101U (en) | 2014-01-18 | 2014-01-18 | Dynamic simulation testing device for chemical cleaning of power station boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420031100.6U CN203786101U (en) | 2014-01-18 | 2014-01-18 | Dynamic simulation testing device for chemical cleaning of power station boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203786101U true CN203786101U (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420031100.6U Expired - Fee Related CN203786101U (en) | 2014-01-18 | 2014-01-18 | Dynamic simulation testing device for chemical cleaning of power station boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203786101U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442661A (en) * | 2016-10-27 | 2017-02-22 | 中国神华能源股份有限公司 | Online measurement device for chemical boiler cleaning system |
| CN108982768A (en) * | 2018-07-16 | 2018-12-11 | 西安热工研究院有限公司 | A kind of Boiler Chemical method of static testing |
-
2014
- 2014-01-18 CN CN201420031100.6U patent/CN203786101U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442661A (en) * | 2016-10-27 | 2017-02-22 | 中国神华能源股份有限公司 | Online measurement device for chemical boiler cleaning system |
| CN108982768A (en) * | 2018-07-16 | 2018-12-11 | 西安热工研究院有限公司 | A kind of Boiler Chemical method of static testing |
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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: 20140820 Termination date: 20170118 |