CN209182181U - A kind of pump inside corrosive wear experimental bench for simulating underground high-temperature bittern environment - Google Patents
A kind of pump inside corrosive wear experimental bench for simulating underground high-temperature bittern environment Download PDFInfo
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- CN209182181U CN209182181U CN201821534513.0U CN201821534513U CN209182181U CN 209182181 U CN209182181 U CN 209182181U CN 201821534513 U CN201821534513 U CN 201821534513U CN 209182181 U CN209182181 U CN 209182181U
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Abstract
The utility model is a kind of a kind of experimental provision that can be used for pump internal corrosion wear test research under the conditions of high-temperature bittern, is related to corrosive wear experimental bench inside the pump for simulating underground high-temperature bittern environment.This experimental provision includes external circulating system and internal circulation system, external circulating system includes driving motor, dynamometer, non-contact type holds digital revmeter, outer circulation pumps, heating water tower, water tank containing solid particle, check-valves, flow-limiting valve, spring steam security valve, circulation line, heater, fixing bearing, flow-stopping plate, digital display static pressure liquid level meter, and internal circulation system includes test model pump motor, test model pump seal, strainer, test model pump, shut-off valve, flow-limiting valve, ultrasonic flowmeter, circulation line.The abrasion of different flow under high temperature, high pressure, abrasion experiment may be implemented in the present apparatus.It not only can fully ensure that the experimental period of wear test, but also experimental provision is safe and reliable, can accurately simulate the geothermal environment of high temperature and pressure.
Description
Technical field
The present invention relates to inter deterioration experimental provision is pumped under a kind of particular surroundings, for simulating in high temperature and pressure brine environment
Corrosive wear situation when lower pump internal operation.
Background technique
Geothermal energy is the recoverable heat energy from earth depths, it arises from the melting magma of the earth and declining for radioactive substance
Become.The reserves of geothermal energy are huge, and most of integrated distribution is in one band of tectonic plate edge.With in short supply, the environment of fossil energy
The increasing of pressure, for geothermal energy as a kind of free of contamination renewable and clean energy resource, geothermal power generation is a kind of heavy as producing electricl energy
Want means.Geothermal power generation is a kind of new-generation technology using geothermal water and steam for power source.Its basic principle and fire
Power power generation is similar, and according to energy conversion principle, geothermal can be converted to mechanical energy first, then mechanical energy is converted to electricity
Energy.But since working media is not single pure water, the working media containing various solid particles can produce mechanical and pipeline
Raw a degree of abrasion, abrasion.
In geothermal power generation, it is the heart of entire electricity generation system, due to underground heat that terrestrial heat pump, which is the important equipment in power generation process,
Contain various solid particles and chemical component in water, serious abrasion can be generated to terrestrial heat pump inner flow passage and blade, and then drop
, there is equipment fault in low generating efficiency when serious, will cause huge economic loss.It therefore, just must be to the mistake of hydraulic
Stream unit carries out wear test, so as to the transformation that the design to flow passage components is assisted, extends its working life, reduces operation
Cost.
Due to the working environment of high temperature and pressure and the particularity of experiment, test experiments have certain risk, and test
Period is longer, and experiment must carry out in closed system, and the material selection and experimental bench installation of test model pump must all expire
The certain requirement of foot.
It is currently, there are simulation underground high-temperature bittern environmental corrosion wear test platform to have the following problems: 1) existing experiment dress
Set mostly bulky, it is more inconvenient to operate.2) existing experimental provision use has a single function, and flexibility is lower, experiment essence
It spends lower, true underground environment can not accurately be simulated.
Summary of the invention
For the present invention for above-mentioned various defects existing for existing experimental provision, providing one kind can be used for high-temperature bittern condition
The experimental provision of lower pump inter deterioration corrosion.
This experimental provision includes the first external circulating system, the second external circulating system and internal circulation system, the first outer circulation system
System includes that driving motor, shaft coupling, dynamometer, non-contact type hold that digital revmeter, outer circulation pump, heading joint be first, current limliting
Valve one, heating water tower, heater, thermometer, pressure gauge, spring steam security valve, fixed rolling bearing, digital display static pressure liquid
Position meter, circulation line, shut-off valve one.Second external circulating system include arsenicbearing gold ores case, sand gate, shut-off valve two, circulation line,
Angle coupling two.Internal circulation system includes test model pump shield electric machine, test model pump seal, strainer, test mould
Type pump, is inspected periodically with valve, circulation line flow-limiting valve two, ultrasonic flowmeter.The present apparatus may be implemented under high temperature, high pressure
Abrasion, the abrasion experiment of different flow.It not only can fully ensure that the experimental period of wear test, but also experimental provision safely may be used
It leans on, can accurately simulate the geothermal environment of high temperature and pressure.
Preferably, to be tested to be arranged with model pump using vertical diving, model pump shield electric machine is arranged on the outside of tube body,
Test model pump seal, export pipeline and main shaft are coaxially arranged.
Preferably, the cross frame plate that 5mm is installed at distance heating water tower bottom 120mm, prevents solid particle in water tower heavy
Product blocking outlet at bottom.
Preferably, external circulating system is pumped using fluoroplastics clamping plate, flow set 85m3Mould is used in/h, internal circulation system test
Type pump, flow set 80m3/ h carries out abrasion abrasion experiment.
Preferably, 4~6 flow-stopping plates with a thickness of 5mm are installed in heating water tower inner wall, prevent from tangentially entering heating water tower
(17) water generates vortex in water tower.
Preferably, test model pump converted according to similarity criterion, likelihood ratio 1:1, inlet diameter value range be 110~
150mm, diameter of axle 40mm.
Preferably, heater is placed at flow-stopping plate 205mm, water tower outer wall covers asbestos insulating layer, the first outer circulation
System circulation pipeline installs periodic detection valve, for detecting the content of solid particle in liquid in tank body.
Preferably, test model impeller of pump, the pump housing, circulation line etc. use 316L stainless steel material；Outer circulation pumps leaf
Piece uses fluoroplastics material.
The precision of experiment not only can be improved in the experimental provision of multi-cycle pipeline, also facilitates operation, and structure is simple, tests function
Can be powerful, significantly reduce the cost of experiment.Meanwhile it is highly-safe, it is non-hazardous to environment.
Detailed description of the invention
Fig. 1 is that a kind of main view of pump inside corrosive wear experimental bench for simulating underground high-temperature bittern environment (does not wrap
Case containing arsenicbearing gold ores)；
Fig. 2 is a kind of side view of pump inside corrosive wear experimental bench for simulating underground high-temperature bittern environment；
Fig. 3 is a kind of top view of pump inside corrosive wear experimental bench for simulating underground high-temperature bittern environment；
In figure: driving motor 1, shaft coupling 2, dynamometer 3, non-contact type hold digital revmeter 4, outer circulation pumps 5, right angle
Connector 1, angle coupling 27, flow-limiting valve 1, thermometer 9, digital display static pressure liquid level meter 10, pressure gauge 11, ultrasonic flowmeter
12, it inspects periodically and includes with valve 13, flow-limiting valve 2 14, heater 15, shut-off valve 1, heating water tower 17, internal circulation system
Test model pumps shield electric machine 18, test model pump seal 19, strainer 20, test model pump 21, spring steam peace
Full valve 22, shut-off valve 2 23, fixed rolling bearing 24, arsenicbearing gold ores case 25, sand gate 26, circulation line.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to attached drawing 1-3: this experimental provision includes the first external circulating system, the second external circulating system and internal circulation system,
First external circulating system includes driving motor 1, shaft coupling 2, dynamometer 3, non-contact type holds digital revmeter 4, outer circulation pumps
5, heading joint is first 6, flow-limiting valve 1, heating water tower 17, heater 15, thermometer 9, pressure gauge 11, spring steam security valve
22, fixed to use rolling bearing 24, digital display static pressure liquid level meter 10, shut-off valve 1, circulation line.Second external circulating system includes containing
Husky water tank 25, sand gate 26, shut-off valve 2 23, angle coupling 27, circulation line.Internal circulation system includes test model
It pumps shield electric machine 18, test model pump seal 19, strainer 20, test model and pumps 21, flow-limiting valve 2 14, ultrasonic flowmeter
12, it inspects periodically with valve 13, circulation line.The abrasion of different flow under high temperature, high pressure, abrasion may be implemented in fact in the present apparatus
It tests.It not only can fully ensure that the experimental period of wear test, but also experimental provision is safe and reliable, can accurately simulate height
The geothermal environment of warm high pressure.
Outer circulation fluoroplastic pump 5 holds digital revmeter 4 through dynamometer 3 and non-contact type by shaft coupling 2 and connects with motor 1
It connects, 5 outlet of outer circulation pump is connected through flow-limiting valve 1 with heating water tower 17, and water tower outlet at bottom is through shut-off valve 1 and outer circulation
The import connection of pump 5.
The entrance pipe of outer circulation fluoroplastic pump 5 is exported by the arsenicbearing gold ores case 25 of angle coupling 27 and external circulation line
Connection, sand grains can be entered heating water tower 17 by fluoroplastic pump 5, carry out model pump testing, 5 outlet of outer circulation fluoroplastic pump
Road, by being connected at the top of heading joint first 6 and the arsenicbearing gold ores case 25 of external circulation line, for adjust in heating water tower 17 water level and
Pressure.
Thermometer 9, pressure gauge 11, spring steam security valve 22 are connected to 17 top of heating water tower, apart from flow-stopping plate
Heater 15 is placed at 205mm, and guarantees to seal No leakage, and heater quantity is 4-6, in heating 17 bottom symmetrical of water tower
Arrangement.Asbestos are mounted on the outer wall of heating water tower 17 as experiment thermal insulation material.
Digital display static pressure liquid level meter 10 is mounted on upper position in heating water tower 17, it is ensured that water tower level will not decline too fast.
4~6 flow-stopping plates with a thickness of 5mm are installed in heating water tower inner wall, prevent the water for tangentially entering heating water tower 17
Vortex is generated in water tower.Flow-stopping plate can destroy the vortex of formation, keep relatively stable experimental enviroment in heating water tower 17.
Test model pump 21 is converted according to similarity criterion, likelihood ratio 1:1, and inlet diameter value range is 110~
150mm, diameter of axle 40mm.
Outer circulation pump 5 impeller, blade use fluoroplastics material, fluoroplastics material have antiacid alkali, resist it is various organic molten
The characteristics of agent, coefficient of friction is extremely low, can reduce abrasion of the brine in experimentation containing solid particle to impeller of pump, and mould is used in test
Type impeller of pump, the pump housing, circulation line etc. use 316L stainless steel material, and 316L stainless steel material is added to Mo, pitting resistance
Outstanding, strength character is outstanding under the high temperature conditions, can meet requirement of experiment.
Valve 13 is inspected periodically in installation at the first external circulation line position, is heated sand grains in water tower for detect and is contained
Amount.
Arsenicbearing gold ores case has 10 ° of gradients, hangs down near tank outlet having a size of 1100mm*2000mm*600mm, bottom design
Sand control gate 26 is installed in straight bottom, prevents sand grains from blocking tank outlet.
To be tested to be arranged with model pump 21 using vertical diving, shield electric machine 18 is arranged on the outside of tube body, and mould is used in test
Type pump seal 19, strainer 20, export pipeline and main shaft are coaxially arranged.
The cross frame plate that 5mm is installed at distance heating 17 bottom 120mm of water tower, prevents solids particles precipitate in water tower from blocking
Outlet at bottom, ultrasonic flowmeter 12 are mounted on 21 outlet of internal circulation system test model pump.
Corrosive wear experimental provision makes inside a kind of pump for simulating underground high-temperature bittern environment of the present invention
With method, comprising the following steps:
A. each experimental provision is installed to designated position by above-mentioned mounting means.
B. 25 exits and entrances valve of water tank containing sand is closed, outer circulation fluoroplastic pump 5 is opened, injection is clear in Xiang Jiare water tower 17
Water passes through water level, pressure in digital display static pressure liquid level meter 10, the observation heating water tower of pressure gauge 11.
C. water level, pressure meet requirement of experiment in hot-water tower 17 to be added, open internal circulation system test model pump 21, to
After pump operation is stablized, flowmeter is adjusted, runs test pump under design conditions.
D. clear water in water tower is heated in heater 15, and thermometer above observation water tower, temperature reaches experiment and wants
When seeking temperature, stop heating.
E. 25 exit valve of arsenicbearing gold ores case is opened, sand grains enters heating water tower with water flow, simulates geothermal environment
F. after running a period of time, opening inspects periodically valve 13, and whether sand grains concentration reaches experiment and want in inspection water tower
It asks, if having reached requirement of experiment standard, closes sand grains imported valve.Guarantee that sand grains constant concentration is constant in heating water tower.
G. inner loop test model pump 21 carries out abrasion abrasion experiment, and after testing a period of time, pass hull closure is taken
Model pump out checks abrasion condition, is weighed with electronics Libra, calculates its abrasion loss.
Variable parameter of the invention
(1) speed: the flow velocity of working media can be controlled by the opening and closing of internal circulation system test pump outlet valve,
(2) medium temperature: the temperature of entire experimental provision working media can be adjusted by heating water tower, when temperature is lower than
When temperature required by experiment, heated using heater.
(3) type and concentration of solid particle: can for carrying out type and the concentration of the solid particle that abrasion abrasion is tested
To be changed by water tank in the second external circulating system.
(4) by changing medium in water tower, the abrasion abrasion experiment of different experiments medium can working media: be carried out.
(5) test pump blade material: the abrasion abrasion that replacement unlike material blade can carry out rotating machinery different materials is real
It tests.
The present invention is through practical operation, and corrosive wear experimental bench can be realized inside the pump for simulating underground high-temperature bittern environment
Long-time test material is that pump in mobility be 30m/s for the test model of 316L stainless steel under enclosed environment, and pressure is
20MPa, temperature are respectively 70 degrees Celsius, 120 degrees Celsius, erosion corrosion of the various concentration solid particle to blade.
Above embodiment is the description of the invention, is not limitation of the invention, it is possible to understand that is not departing from this hair
Bright.
Claims (8)
1. corrosive wear experimental bench inside a kind of pump for simulating underground high-temperature bittern environment, it is characterised in that: experimental provision
Including the first external circulating system, the second external circulating system and internal circulation system, the first external circulating system include driving motor (1),
Shaft coupling (2), dynamometer (3), non-contact type hold digital revmeter (4), outer circulation pumps (5), heading joint first (6), current limliting
Valve one (8), heater (15), thermometer (9), pressure gauge (11), spring steam security valve (22), is consolidated at heating water tower (17)
Surely rolling bearing (24), digital display static pressure liquid level meter (10), shut-off valve one (16), circulation line are used；Second external circulating system includes
Arsenicbearing gold ores case (25), sand gate (26), shut-off valve two (23), angle coupling two (7), circulation line；Internal circulation system includes
Test model pumps shield electric machine (18), test model pump seal (19), strainer (20), test model pump (21), current limliting
Valve two (14), ultrasonic flowmeter (12) are inspected periodically with valve (13), circulation line；Wherein, outer circulation pump (5) passes through connection
Axis device holds digital revmeter (4) through dynamometer (3) and non-contact type and connect with motor (1), and outer circulation pump discharge is through flow-limiting valve
One (8) are connected with heating water tower (17), and water tower (17) outlet at bottom is connect through shut-off valve one (16) with outer circulation pump (5) import,
Form the first external circulating system；Arsenicbearing gold ores case (25) is connected by angle coupling two (7) and outer circulation pump (5) outlet, by cutting
It is connect at the top of only valve two (23), heating water tower (17) and arsenicbearing gold ores case (25), forms the second external circulating system；Through flow-limiting valve two
(14), ultrasonic flowmeter (12), test model pump (21) and are connected with heating water tower (17), form internal circulation system, entirely
Circulation line forms closed system.
2. experimental bench according to claim 1, it is characterised in that: to be tested to use vertical diving cloth with model pump (21)
It sets, model pump shield electric machine (18) is arranged on the outside of tube body, test model pump seal (19), export pipeline and the coaxial cloth of main shaft
It sets.
3. experimental bench according to claim 1, it is characterised in that: install 5mm at distance heating water tower (17) bottom 120mm
Cross frame plate, prevent in water tower solids particles precipitate to block outlet at bottom.
4. experimental bench according to claim 1, it is characterised in that: the outer circulation pump (5) of external circulating system uses fluoroplastics
Clamping plate pump, flow set 85m3/ h, internal circulation system test model pump (21), flow set 80m3/ h carries out abrasion mill
Erosion experiment.
5. experimental bench according to claim 1, it is characterised in that: install 4~6 in heating water tower inner wall with a thickness of 5mm
Flow-stopping plate, prevent tangentially into heating water tower (17) water vortex is generated in water tower.
6. experimental bench according to claim 1, it is characterised in that: test model pump (21) is converted according to similarity criterion,
Likelihood ratio 1:1, inlet diameter value range are 110~150mm, diameter of axle 40mm.
7. experimental bench according to claim 1, it is characterised in that: place heater (15) at flow-stopping plate 205mm, add
Hot-water tower outer wall covers asbestos insulating layer, and the first external circulating system circulation line installs periodic detection valve (13), for detecting
In tank body in liquid solid particle content.
8. experimental bench according to claim 1, it is characterised in that: test model pumps (21) impeller, the pump housing, circulation line
Deng use 316L stainless steel material；Outer circulation pumps (5) blade and uses fluoroplastics material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821534513.0U CN209182181U (en) | 2018-09-19 | 2018-09-19 | A kind of pump inside corrosive wear experimental bench for simulating underground high-temperature bittern environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821534513.0U CN209182181U (en) | 2018-09-19 | 2018-09-19 | A kind of pump inside corrosive wear experimental bench for simulating underground high-temperature bittern environment |
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| CN209182181U true CN209182181U (en) | 2019-07-30 |
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| CN201821534513.0U Active CN209182181U (en) | 2018-09-19 | 2018-09-19 | A kind of pump inside corrosive wear experimental bench for simulating underground high-temperature bittern environment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100134A (en) * | 2018-09-19 | 2018-12-28 | 江苏大学镇江流体工程装备技术研究院 | A kind of pump inside corrosive wear experimental bench for simulating underground high-temperature bittern environment |
| CN114112883A (en) * | 2021-11-29 | 2022-03-01 | 国网浙江省电力有限公司电力科学研究院 | Depth peak regulation unit steam turbine blade particle erosion test system |
-
2018
- 2018-09-19 CN CN201821534513.0U patent/CN209182181U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100134A (en) * | 2018-09-19 | 2018-12-28 | 江苏大学镇江流体工程装备技术研究院 | A kind of pump inside corrosive wear experimental bench for simulating underground high-temperature bittern environment |
| CN114112883A (en) * | 2021-11-29 | 2022-03-01 | 国网浙江省电力有限公司电力科学研究院 | Depth peak regulation unit steam turbine blade particle erosion test system |
| CN114112883B (en) * | 2021-11-29 | 2024-03-26 | 国网浙江省电力有限公司电力科学研究院 | Turbine blade particle erosion test system of deep peak shaving unit |
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