CN211206117U - Laboratory simulation device for SCA L type indirect cooling system - Google Patents
Laboratory simulation device for SCA L type indirect cooling system Download PDFInfo
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- CN211206117U CN211206117U CN201921877114.9U CN201921877114U CN211206117U CN 211206117 U CN211206117 U CN 211206117U CN 201921877114 U CN201921877114 U CN 201921877114U CN 211206117 U CN211206117 U CN 211206117U
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Abstract
The utility model discloses a laboratory analogue means that is used for cold system between SCA L type, this analogue means is by the water storage tank, magnetism upset level gauge, the magnetic drive pump, the quality of water measurement bypass, quality of water purifies the bypass, rotor flow meter, corrode the lacing film device, the radiator aluminum pipe erodees corrodes experimental apparatus, constitute, adopt 304 nonrust steel pipe connections between each part, total a-r is used for adjusting rivers altogether 15 ball valves in the pipeline, this laboratory analogue means can simulate the operation process of cold system between SCA L type in the laboratory, the quality of water change law of cold system in different operation periods between this type is researched, and different conductivities, water quality conditions such as dissolved oxygen volume change the influence of material corrosion in the system.
Description
Technical Field
The utility model relates to a material corrodes protection research field, concretely relates to be used for studying SCA L type intercooling system circulating water quality of water change law and quality of water change to wherein the laboratory analogue means of material corrosion influence.
Background
The novel indirect air cooling system provides a new challenge for material corrosion protection work, because carbon steel and pure aluminum which have great chemical property difference coexist in the system, the conventional alkaline water working condition suitable for carbon steel corrosion prevention is not suitable for amphoteric metal pure aluminum, and in addition, no water purification treatment equipment exists in the conventional design of the SCA L indirect air cooling system, and the corrosion prevention problem of materials in the system is more complicated due to the factors.
At present, the air cooling system of a foreign power generator set only adopts a direct air cooling system, a Hamon type indirect air cooling system or a Hahler type indirect air cooling system, the SCA L type indirect air cooling system is the first initiative in China, and the service time is short, so the research and the report aiming at the aspects of corrosion prevention and water quality control of the SCA L type indirect air cooling circulating water system are hardly carried out at home and abroad.
In addition, the surface water flow speed of the material in the SCA L type indirect cooling system is in the range of 1-4m/s, the flow state of water at different parts in the system is different, and simulation equipment used in the experiment needs to simulate the parameters according to the field working conditions.
SUMMERY OF THE UTILITY MODEL
The utility model provides a that prior art exists when carrying out water quality change law and material corrosion mechanism research, need carry out accurate control to circulating water quality parameter, to the circulating water conductivity according to the research demand, impurity anion and cation content, dissolved oxygen volume, turbidity isoparametric adjusts, however do not can satisfy the problem of the laboratory analogue means of above condition on the market at present, a laboratory analogue means for cold system between SCA L type is provided, can simulate more really during its application between SCA L type cold system operational aspect simultaneously to the accurate regulation and control of water quality parameter, a water quality change law and the material corrosion mechanism of different operation stages in the cold system between this type are used for studying.
The utility model discloses a following technical scheme realizes:
a laboratory simulation device for an SCA L type indirect cooling system comprises a water storage tank, a magnetic turnover liquid level meter, a magnetic pump, a water quality measuring bypass, a water quality purifying bypass, a corrosion coupon device I, a corrosion coupon device II and a radiator aluminum pipe erosion corrosion experiment device, wherein the magnetic turnover liquid level meter is arranged on the water storage tank, the magnetic pump is connected with an outlet at the lower part of the water storage tank, an outlet of the magnetic pump is divided into two branches, one branch returns to the water storage tank and is connected with the corrosion coupon device I, a valve f is arranged on the other branch returning to the water storage tank, the water quality measuring bypass and the water quality purifying bypass are arranged between the two branches divided from an outlet of the magnetic pump, a valve j and a valve h are arranged in front of and at the back of the water quality measuring bypass, a valve k and a valve g are arranged in the front of the water quality purifying bypass, a rotor flow meter I and a valve m are arranged at the front end of the corrosion coupon device I, the back end of the corrosion coupon device I is connected with the corrosion coupon device II, a valve n and a rotor flow meter II are arranged between the corrosion coupon device II, an inlet and an outlet of the corrosion coupon device and an outlet of the radiator aluminum pipe erosion coupon device are arranged on the branch pipe erosion coupon device, and an outlet of the experimental radiator aluminum pipe erosion coupon device I and an outlet of the experimental radiator is arranged on the experimental radiator pipe.
The water in the water storage tank flows into the experimental pipeline and the water return pipeline at a certain flow rate after being pressurized by the magnetic pump, the output of the magnetic pump is constant, and the water flow speed in the experimental pipeline is controlled by changing the opening degrees of valves of the two pipelines. And parameters such as conductivity, dissolved oxygen, pH, turbidity and the like of the circulating water are measured through the water quality measuring bypass. Parameters such as conductivity, turbidity and the like of the circulating water are adjusted through the water quality purification bypass. The equipment is shared with two groups of corrosion coupon devices, a rotor flowmeter is arranged in front of each group of corrosion coupon devices and used for calculating the surface water velocity of the corrosion test piece, and the flow velocity of each group of corrosion coupon devices can be independently controlled. When the erosion corrosion of the port of the radiator aluminum pipe is researched, a valve of a bypass of the radiator simulation device is opened, and the speed of water flow in the radiator aluminum pipe is controlled by adjusting the opening of the valve. Finally, the circulating water flows back to the water tank through a pipeline.
Further, a laboratory simulation device for SCA L type indirect cooling system, wherein the parts used in the device are connected by 304 stainless steel pipes.
Furthermore, the laboratory simulation device for the SCA L type intercooling system is characterized in that a snake-shaped heat exchange medium ring pipe is arranged in the water storage tank, a vent valve a, a drain valve b, a water injection valve c, a heat exchange medium inlet valve d and a heat exchange medium outlet valve e are arranged on the water storage tank, the heat exchange medium inlet valve d is connected with an inlet of the snake-shaped heat exchange medium ring pipe, and the heat exchange medium outlet valve e is connected with an outlet of the snake-shaped heat exchange medium ring pipe.
Furthermore, a laboratory simulation device for an SCA L type intercooling system is characterized in that a ventilation ring pipe is arranged in the water storage tank and is communicated with a ventilation valve a, and an exhaust hole is formed in the ventilation ring pipe which is communicated with the ventilation valve a and is used for ventilating circulating water to control the dissolved oxygen of the circulating water.
Further, a laboratory analogue means that is used for SCA L type intercooling system, corrode the whole organic glass that adopts of lacing film device and make, the upper and lower portion of corroding the lacing film device is provided with the flange, be provided with the recess on the flange, be provided with the stainless steel rod in the recess, connect gradually through the fish tape on the stainless steel rod and hang each test block on the stainless steel rod.
Further, the laboratory simulation device for the SCA L type indirect cooling system is characterized in that the aluminum tubes used in the radiator aluminum tube erosion corrosion experimental device are identical to the aluminum tubes used in the radiator of the SCA L type indirect cooling system.
To sum up, the utility model discloses a following beneficial effect:
1. the utility model relates to a laboratory analogue means that is used for cold system between SCA L type, this experimental apparatus can simulate the actual behavior of cold system between SCA L type really.
2. The utility model relates to a laboratory analogue means for SCA L type intercooling system, this experimental apparatus can accurately control each item parameter in the circulating water, including circulating water velocity of flow, circulating water conductivity, dissolved oxygen volume, impurity anion and cation content etc. and then study the influence of these parameters to material corrosion in the system.
3. The utility model relates to a laboratory analogue means that is used for cold system between SCA L type, this experimental apparatus can be used for studying the erosion and corrosion problem of radiator aluminum pipe port.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of a vent loop structure in an experimental apparatus.
FIG. 3 is a schematic structural diagram of a corrosion coupon device in the experimental apparatus.
FIG. 4 is a top view of the corrosion coupon apparatus of the experimental set-up.
Reference numbers and corresponding part names in the drawings:
1-a water storage tank, 2-a magnetic turnover liquid level meter, 3-a magnetic pump, 4-a water quality measuring bypass, 5-a water quality purifying bypass, 6-a rotor flow meter I, 7-a corrosion hanging sheet device I, 8-a rotor flow meter II, 9-a corrosion hanging sheet device II, 10-a rotor flow meter III, 11-a radiator aluminum pipe scouring corrosion experiment device, 12-a snake-shaped heat exchange medium ring pipe, 13-organic glass, 14-a test piece, 15-a flange, 16-a groove, 17-a stainless steel rod, 18-an exhaust hole and 19-an air vent ring pipe.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1
The experimental simulation device for the SCA L type indirect cooling system comprises a water storage tank 1, a magnetic inversion level meter 2, a magnetic pump 3, a water quality measurement bypass 4, a water quality purification bypass 5, a corrosion hanging piece device I7, a corrosion hanging piece device II9, a radiator aluminum pipe washing corrosion experimental device 11, the magnetic inversion level meter 2 is arranged on the water storage tank 1, the magnetic pump 3 is connected with an outlet at the lower part of the water storage tank 1, an outlet of the magnetic pump 3 is divided into two branches, one branch is returned to the water storage tank 1, the other branch is connected with a corrosion hanging piece device I7, a valve f is arranged on a pipeline returning to the water storage tank 1, the water quality measurement bypass 4 and the water quality purification bypass 5 are arranged between the two branches divided from the outlet of the magnetic pump 3, a valve j and a valve h are arranged in front of the water quality purification bypass 5, a valve k and a valve g are arranged in front of the corrosion hanging piece device I7, a flow meter I6 and a valve m are arranged in front end of the corrosion water tank, the corrosion bypass, a corrosion loop device I7, a corrosion bypass 7 is arranged in a corrosion flow meter, a corrosion flow meter 2, a corrosion flow meter is arranged in a corrosion flow meter, a corrosion flow meter 2, a corrosion flow meter is arranged in a corrosion flow meter, a corrosion flow meter 2, a corrosion flow meter 2, a corrosion flow meter 2, a corrosion flow meter is arranged in a corrosion flow meter, a corrosion flow meter 2, a corrosion meter, a corrosion flow meter, a corrosion meter is arranged in a corrosion meter, a corrosion.
By using the experimental device, under the condition that the initial conductivity of circulating water is 1.358 muS/cm, the initial dissolved oxygen of the circulating water in the system is saturated (5.5 mg/L), the water flow velocity on the surface of carbon steel is 3.5m/S, the water flow velocity on the surface of pure aluminum is 2.5m/S, the experimental period is 72 hours, and the monitoring data of the water quality change rule of the circulating water in the period are shown in table 1. the corrosion morphology of the material after the experiment is shown in fig. 4, the weight loss of the carbon steel and the pure aluminum is respectively calculated according to the method of GB/T16545-1996, and the corrosion rates of the carbon steel and the pure aluminum are respectively calculated by a weight loss method, namely the corrosion rate of the carbon steel is 0.748mm/a, and the corrosion.
Table 1 example 1 water quality change of circulating water in experimental apparatus
Example 2
The experimental simulation device for the SCA L type indirect cooling system comprises a water storage tank 1, a magnetic inversion level meter 2, a magnetic pump 3, a water quality measurement bypass 4, a water quality purification bypass 5, a corrosion hanging piece device I7, a corrosion hanging piece device II9, a radiator aluminum pipe washing corrosion experimental device 11, the magnetic inversion level meter 2 is arranged on the water storage tank 1, the magnetic pump 3 is connected with an outlet at the lower part of the water storage tank 1, an outlet of the magnetic pump 3 is divided into two branches, one branch is returned to the water storage tank 1, the other branch is connected with a corrosion hanging piece device I7, a valve f is arranged on a pipeline returning to the water storage tank 1, the water quality measurement bypass 4 and the water quality purification bypass 5 are arranged between the two branches divided from the outlet of the magnetic pump 3, a valve j and a valve h are arranged in front of the water quality purification bypass 5, a valve k and a valve g are arranged in front of the corrosion hanging piece device I7 and a valve I6 and a valve m, the corrosion bypass 7, a corrosion bypass pipeline is arranged between the water storage tank 1 and the corrosion bypass, a corrosion drain pipe 7, a corrosion bypass 7 is arranged in a corrosion bypass, a corrosion bypass pipeline is arranged in a corrosion drain pipe, a corrosion bypass device 7 is arranged in a corrosion bypass, a corrosion drain pipe is arranged in a corrosion bypass, a corrosion drain pipe, a corrosion bypass, a corrosion drain pipe is arranged in a corrosion drain pipe, a corrosion bypass, a corrosion drain pipe, a corrosion bypass, a.
By using the experimental device, under the condition that the initial conductivity of circulating water is 1.328 mu S/cm, the initial dissolved oxygen of the circulating water in the system is 0.48 mg/L, the water flow velocity of the surface of carbon steel is 3.5m/S, the water flow velocity of the surface of pure aluminum is 2.5m/S, the experimental period is 72 hours, and the monitoring data of the water quality change rule of the circulating water during the period are shown in table 1. the corrosion morphology of the material after the experiment is shown in fig. 4, the weight loss of the carbon steel and the pure aluminum is respectively calculated according to the method of GB/T16545-1996, and the corrosion rates of the carbon steel and the pure aluminum are respectively calculated as the corrosion rate of the carbon steel is 0.297mm/a and the corrosion rate of the pure aluminum is 0.
Table 2 example 2 circulating water quality change in experimental setup
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a laboratory analogue means for SCA L type intercooling system, its characterized in that, including water storage tank (1), magnetism upset level gauge (2), magnetic drive pump (3), water quality measurement bypass (4), water purification bypass (5), corrode hanger device I (7), corrode hanger device II (9), radiator aluminum pipe erosion corrosion experimental apparatus (11), magnetism upset level gauge (2) set up on water storage tank (1), magnetic drive pump (3) are connected with water storage tank (1) lower part export, the export of magnetic drive pump (3) divide into two branches, wherein return water storage tank (1) another way and corrode hanger device I (7) and be connected all the way, return the way of water storage tank (1) and be provided with valve f, water quality measurement bypass (4), water quality purification bypass (5) set up between two branches that magnetic drive out at the export of magnetic drive pump (3), be provided with valve j, valve h around the water quality measurement bypass (4), water quality corrosion regulating valve k, valve g around the water quality purification bypass (5) is provided with corrode between the branch pipe corrosion flow meter I (7) and the experimental apparatus II, the rotor aluminum pipe erosion flow meter I (7) that the export is connected, be provided with the corrosion hanger device II that the corrosion flow meter I (7) corrodes, the aluminium pipe corrosion flow meter is connected, the corrosion flow meter is connected with the device I outlet, the aluminium pipe (11) is provided with the corrosion hanger device II, the corrosion flow meter (11) on the washing device (11) and the washing device I corrosion flow meter, the washing device (7) is connected, the washing device (11, the washing device (7) is provided with the washing device I outlet of the washing device I outlet, the washing device I outlet of the washing device II, the washing device I is connected with the washing device (7, the washing device II, the washing device I outlet of the washing device (.
2. Laboratory simulation device for SCA L type intercooling system, according to claim 1, wherein the parts used in the device are connected by 304 stainless steel pipes.
3. The laboratory simulation device for SCA L type intercooling system according to claim 1, wherein a serpentine heat exchange medium loop (12) is provided in the water storage tank (1), a vent valve a, a drain valve b, a water injection valve c, a heat exchange medium inlet valve d, and a heat exchange medium outlet valve e are provided on the water storage tank (1), the heat exchange medium inlet valve d is connected to an inlet of the serpentine heat exchange medium loop (12), and the heat exchange medium outlet valve e is connected to an outlet of the serpentine heat exchange medium loop (12).
4. Laboratory simulation device for SCA L type intercooling system, according to claim 1, wherein a venting loop (19) is provided in the storage tank (1), wherein the venting loop (19) is provided with a venting hole (18), and wherein the venting loop (19) is connected to a venting valve a for venting circulating water to control the dissolved oxygen content of the circulating water.
5. The laboratory simulator for SCA L type intercooling system of claim 1, wherein the corrosion hanging sheet device is integrally made of organic glass (13), flanges (15) are arranged at the upper and lower parts of the corrosion hanging sheet device, a groove (16) is arranged on the flange (15), a stainless steel rod (17) is arranged in the groove (16), and the stainless steel rod (17) is sequentially connected through a fish line to hang each test sheet (14) on the stainless steel rod (17).
6. The laboratory simulator for the indirect cooling system of SCA L, wherein the aluminum tubes used in the aluminum tube erosion corrosion tester of the radiator are identical to the aluminum tubes used in the radiator of the indirect cooling system of SCA L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921877114.9U CN211206117U (en) | 2019-11-04 | 2019-11-04 | Laboratory simulation device for SCA L type indirect cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921877114.9U CN211206117U (en) | 2019-11-04 | 2019-11-04 | Laboratory simulation device for SCA L type indirect cooling system |
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| CN211206117U true CN211206117U (en) | 2020-08-07 |
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| CN201921877114.9U Active CN211206117U (en) | 2019-11-04 | 2019-11-04 | Laboratory simulation device for SCA L type indirect cooling system |
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