CN110672964B - Electrothermal tube aging detection equipment and detection method based on equipment - Google Patents
Electrothermal tube aging detection equipment and detection method based on equipment Download PDFInfo
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- CN110672964B CN110672964B CN201911019917.5A CN201911019917A CN110672964B CN 110672964 B CN110672964 B CN 110672964B CN 201911019917 A CN201911019917 A CN 201911019917A CN 110672964 B CN110672964 B CN 110672964B
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Abstract
The invention discloses an electric heating tube aging detection device and a detection method based on the same, and relates to the technical field of electric heating tube detection devices. The technical scheme is characterized by comprising a workbench and a water tower, wherein the outer side wall of the water tower is provided with a mounting port for mounting an electric heating pipe, and the top surface of the workbench is also provided with a detector for detecting the working current of the electric heating pipe; the outer side wall of the water tower is provided with a water inlet pipe, the water inlet pipe is connected with a water pump, and the water pump is connected with a water storage tank; a liquid level relay is connected between the water pump and the alternating current power supply in series; the top end of the water tower is communicated with an air outlet pipe, and the bottom end of the water tower is communicated with a water outlet pipe; the liquid level relay is used for controlling the water pump to start and start to pump water in the water storage tank when the water level in the water tower drops to the position of the low liquid level probe of the liquid level relay; the liquid level relay is also used for controlling the water pump to stop running when the water level in the water tower rises to the high liquid level probe of the liquid level relay. The device has the effect of accurately detecting the service life of the electric heating tube.
Description
Technical Field
The invention relates to the technical field of electrothermal tube detection equipment, in particular to electrothermal tube aging detection equipment and a detection method based on the equipment.
Background
The tubular electric heating element is an electric heating tube for short, and is an electric appliance element specially used for converting electric energy into heat energy. The metal armored electric heating element is characterized in that a metal tube is used as a shell (comprising stainless steel and copper tubes), spiral electric heating alloy wires (nickel-chromium and iron-chromium alloy) are uniformly distributed along the axial direction of the center in the metal tube, gaps of the spiral electric heating alloy wires are filled and compacted with magnesia sand with good insulation and heat conduction properties, two ends of a tube opening are sealed by silica gel, and the metal armored electric heating element can heat air, metal molds and various liquids.
In the field of rail transit, particularly on high-speed trains, the electric heating pipe is particularly important because the electric heating pipe serves the function of heating drinking water so as to provide boiled water for passengers; once the electrothermal tube is damaged, not only can the riding experience of passengers be influenced, but also the living drinking water demand of passengers can be influenced. Therefore, when the production of the electric heating tube is completed, a plurality of samples are extracted from the same batch of products to perform performance detection, aging detection and the like so as to judge whether the batch of products is qualified.
Chinese patent with prior publication No. CN108196156A discloses a device for detecting withstand voltage of an electric heating tube, which comprises: the swinging frame is used for placing the electric heating tube, the swinging frame inclines from one end to the other end, and the electric heating tube is placed into the swinging frame from the higher end and falls out along the lower end of the swinging frame; locate the withstand voltage detection mechanism of the lower one end both sides of rocker, withstand voltage detection mechanism includes a cylinder and the conductive head that is connected with the cylinder, conductive head is connected with outside detection circuitry, when the electrothermal tube was through withstand voltage detection mechanism, conductive head was close to the rocker and is contacted with the both ends of electrothermal tube under the driving of cylinder, outside detection circuitry tests the electric conductive property and the pressure resistance of electrothermal tube through conductive head to judge whether the electrothermal tube of being surveyed is qualified in view of the above.
However, the above prior art schemes can only test the conductivity and the pressure resistance of the electrical heating tube, and many products with service lives that do not reach the expected value do not have problems when conducting the conductivity and the pressure resistance test, but can suddenly fail to be used due to the service life being lower than the expected value in actual use, so the problem needs to be solved.
Disclosure of Invention
The invention aims to provide an electrothermal tube aging detection device and a detection method based on the electrothermal tube aging detection device.
The invention aims at: the utility model provides an electrothermal tube ageing testing equipment, its advantage can accurately detect the life of electrothermal tube.
The second purpose of the invention is that: provides a method for detecting the aging of an electric heating tube, which has the effect of conveniently detecting the service life of the electric heating tube.
The above object of the present invention is achieved by the following technical solutions:
an electric heating tube aging detection device comprises a workbench and a water tower loaded on the top surface of the workbench, wherein a mounting port for mounting an electric heating tube is arranged on one outer side wall of the water tower, and a detector for supplying power to the electric heating tube and detecting working current of the electric heating tube is also arranged on the top surface of the workbench;
a water inlet pipe is arranged on one of the outer side walls of the water tower and above the mounting port, the water inlet pipe is connected with a water pump through a hose, and a water inlet of the water pump is connected with a water storage tank through a hose; the water pump is connected with an alternating current power supply, a liquid level relay is connected between the water pump and the alternating current power supply in series, and a high liquid level probe, a middle liquid level probe and a low liquid level probe of the liquid level relay are all arranged in the water tower and are all positioned between the water inlet pipe and the mounting port;
the top end of the water tower is communicated with an air outlet pipe, and the bottom end of the water tower is communicated with a water outlet pipe; one end of the water outlet pipe, which is far away from the water tower, extends into the water storage tank, and a water valve is connected to the water outlet pipe in series; the liquid level relay is used for controlling the water pump to start and start to pump water in the water storage tank when the water level in the water tower drops to a low liquid level probe of the liquid level relay; the liquid level relay is also used for controlling the water pump to stop running when the water level in the water tower rises to the high liquid level probe of the liquid level relay.
By adopting the technical scheme, the actual use state of the electric heating tube can be simulated, whether the electric heating tube normally works can be judged according to the working current detected by the detector, and the electric heating tube testing device has the advantage of accurately testing the service life of the electric heating tube. Wherein, under the initial condition, the water tower has no water, after the AC power supply is turned on, because the water level in the water tower is lower than the low liquid level probe of the liquid level relay, the water pump is started and pumps the water in the water storage tank, when the liquid level in the water tower reaches the high liquid level probe of the liquid level relay, the water pump stops working; when the water in the water tower is heated to generate steam and the water level is reduced, the liquid level relay can automatically add water into the water tower when the water level reaches the low liquid level probe of the liquid level relay, so that the manual operation is omitted, the manpower is saved, the electric heating tube can be prevented from being damaged due to the fact that the electric heating tube is not in contact with the water, and the accuracy of detection data is improved.
The invention is further configured to: the detector comprises:
the timing module is used for setting and displaying the single heating time of the electric heating tube;
the counting module is used for recording and displaying the power-on and power-off times of the electric heating tube;
and the current detection module is used for detecting, recording and displaying the current of the electric heating tube in the power-on state.
Through adopting above-mentioned technical scheme, the tester can set up single heat time according to product model and characteristic, and the detector can automatic recording and show the break-make electricity number of times at the during operation, has convenient to use's effect. When the working current of the electric heating tube is abnormal, the detector records the abnormal current and the current on-off times, and stops supplying power to the electric heating tube after the abnormal current lasts for a set time, so that the safety is improved, and the energy consumption is reduced.
The invention is further configured to: the outer side wall of the water tower, which is close to the mounting port, and the mounting port are provided with mounting pipes, and one ends of the mounting pipes, which are close to the mounting port, are provided with mounting plates; the electric heating tube comprises a metal protective sleeve and a wiring board arranged at the opening of the metal protective sleeve, and one end of the mounting plate, which is far away from the mounting opening, is provided with a abdicating groove for the wiring board to be clamped in; the connection structure is characterized in that a communication port which is communicated with the mounting port and used for enabling a metal protecting pipe of the power supply heat pipe to extend into the water tower is formed in the bottom wall of the abdicating groove, and the wiring board is connected with the bottom wall of the abdicating groove through screws.
By adopting the technical scheme, when the electric heating pipe is installed, the metal sheath part of the electric heating pipe is inserted into the water tower, the wiring board of the electric heating pipe is clamped into the abdicating groove, and then the wiring board is fixed through the screw, and the installation opening is sealed, so that the electric heating pipe has the effect of convenience in installation.
The invention is further configured to: the bottom of water tower is provided with three stabilizer blades at least.
Through adopting above-mentioned technical scheme, the stabilizer blade is used for propping up the water tower to make and form the determining deviation between water tower and the workstation, so be convenient for install the outlet pipe in the bottom of water tower, also be convenient for pull down the outlet pipe and overhaul, maintain or change.
The invention is further configured to: the top and the bottom of water tower inner chamber all are the trapezoidal.
By adopting the technical scheme, the top end and the bottom end of the inner cavity of the water tower have the flow guiding function, so that steam is conveniently led into the air outlet pipe, and drainage is also convenient.
The invention is further configured to: a heating water tank is arranged on one side of the water tower, and a water faucet is arranged on the outer side wall of the heating water tank; the top end of the heating water tank is communicated with a connecting pipeline communicated with a tap water pipe network, and a ball valve is connected to the connecting pipeline in series; the top end of the heating water tank is provided with an air inlet, and one end of the air outlet pipe, which is far away from the water tower, is connected with the air inlet; a spiral steam channel is arranged in the heating water tank, one end of the spiral steam channel is communicated with the air inlet, and the other end of the spiral steam channel extends out of the heating water tank and is communicated with a cache tank; spiral steam channel's height is become gradually by its one end to other end direction that is close to the air inlet, the top of buffer tank is provided with the venthole.
Through adopting above-mentioned technical scheme, can carry out make full use of with the vapor that the water tower produced, it is specific, vapor gets into after heating the water tank, thereby can get into spiral steam channel and carry out the heat exchange with the water in the heating the water tank and condense into water, and the water after the condensation can enter into the buffer tank and save, and the water after being heated in the heating the water tank can regard as domestic water.
The invention is further configured to: the bottom end of the cache tank is connected with a drain pipe, and one end of the drain pipe, which is far away from the cache tank, is connected with a water collecting tank; the utility model discloses a water pump, including drain pipe, controller, level sensor, buffer tank, solenoid valve, controller electricity are connected in series on the drain pipe, the solenoid valve electricity is connected with the controller, the controller electricity is connected with two level sensor that are located the drain pipe top, two level sensor all is located the buffer tank and sets gradually along vertical direction.
Through adopting above-mentioned technical scheme, the buffer tank has the buffer action, and when the water buffer in the buffer tank was in a quantitative amount, when the water level in the buffer tank reachd the level sensor position that two level sensor kind are located the top promptly, controller control solenoid valve opened and with the water of buffer tank to the header tank in, the water in the header tank can be used to other effects for example wash the water tower, has the advantage that can the water economy resource.
The invention is further configured to: a plurality of spray heads are arranged on the inner top wall of the water tower, and the water spraying ends of the spray heads face the inner bottom wall of the water tower; one side of header tank is provided with the booster pump, the water inlet of booster pump passes through hose and header tank intercommunication, the delivery port of booster pump has water spray house steward through the hose connection, each the shower nozzle all is connected with the water spray and divides the pipe, the water spray is divided the pipe and is kept away from the one end and the water spray house steward intercommunication of shower nozzle.
Through adopting above-mentioned technical scheme, the electrothermal tube can produce the incrustation scale at the in-process that adds hot water, and the setting up of shower nozzle can be cleared up the incrustation scale that adheres to on the water tower inner wall after the detection is accomplished to guarantee the cleanliness of water tower. On the other hand, the water source of the spray head comes from the water collecting tank, and the water in the water collecting tank is the water after the water vapor is condensed, so that the water recycling is realized, and the water saving is facilitated.
The second object of the present invention is achieved by the following technical solutions.
An electrical heating tube aging detection method based on the electrical heating tube aging detection equipment of claim 6, comprising the following steps:
s100, mounting an electric heating pipe to be detected at a water inlet of a water tower;
s200, starting an alternating current power supply to enable a water pump to inject water into a water tower; when the liquid level in the water tower reaches the high liquid level probe of the liquid level relay, the water pump stops running; when the liquid level in the water tower is reduced to the low liquid level probe of the liquid level relay, the water pump starts to operate;
s300, setting single heating time of an electric heating tube on the detector;
s400, starting a detector to enable the electric heating tube to start working and detect and display the working current of the electric heating tube in real time;
and S500, recording the on-off times of the electric heating tube when the working current of the electric heating tube is smaller than a set value.
Through adopting above-mentioned technical scheme, at the electrothermal tube during operation, the water level in the water tower can be guaranteed at the within range of setting for to the water pump to guarantee that the electrothermal tube can work stably. In the detection process, the working current of the electric heating tube can be monitored in real time and displayed, and the effect of conveniently detecting the service life of the electric heating tube is achieved.
The invention is further configured to: in step S400, after the detector is activated, the method further includes the following steps:
s401, introducing steam generated by heating water by the electric heating tube into a spiral steam channel of the heating water tank;
s402, condensing the water vapor in the spiral steam channel into water after heat exchange, and enabling the water vapor to flow into a cache tank;
and S403, releasing the water in the buffer tank into the water collecting tank when the water in the buffer tank reaches a specified liquid level.
By adopting the technical scheme, the water vapor generated when the electric heating tube heats the water in the water tower can be recycled, and resources are saved.
In conclusion, the beneficial technical effects of the invention are as follows:
1. through the arrangement of the water tower, the water pump, the liquid level relay and the detector, the effect of accurately detecting the service life of the electric heating tube is achieved;
2. through the arrangement of the heating water tank, the cache tank and the air outlet, heat energy generated by heating can be recovered, and resources are saved;
3. through the setting of controller, solenoid valve, header tank, booster pump and shower nozzle, can retrieve the water that heat energy produced and be used for the clearance of water tower inner wall with the water of retrieving, have the advantage that can the water economy resource and conveniently wash the water tower.
Drawings
FIG. 1 is a schematic view of an overall structure of an electrothermal tube aging detection device according to an embodiment;
FIG. 2 is a cross-sectional view of the water tower shown in the first embodiment;
FIG. 3 is another sectional view of the water tower shown in the first embodiment;
FIG. 4 is a schematic structural diagram for showing the connection relationship among the water pump, the AC power supply and the liquid level relay in the first embodiment;
FIG. 5 is a sectional view of a heating water tank according to an embodiment;
FIG. 6 is a cross-sectional view of a cache tank according to an embodiment.
In the figure, 1, a workbench; 11. an electric heating tube; 12. a metal sheath tube; 13. a wiring board; 2. a water tower; 21. an installation port; 22. a water inlet pipe; 23. an air outlet pipe; 24. a water outlet pipe; 25. a water valve; 26. installing a pipe; 261. closing the plate; 27. mounting a plate; 28. a yielding groove; 29. a communication port; 3. a detector; 31. a timing module; 32. a counting module; 33. a current detection module; 34. an indicator light; 4. a water pump; 41. an alternating current power supply; 42. a liquid level relay; 43. a liquid level probe; 5. a water storage tank; 6. a support leg; 7. heating the water tank; 71. a faucet; 72. connecting a pipeline; 73. an air inlet; 74. a spiral steam channel; 75. a ball valve; 8. a buffer tank; 81. an air outlet; 82. a drain pipe; 83. a water collection tank; 84. an electromagnetic valve; 85. a controller; 86. a liquid level sensor; 87. a booster pump; 88. a main water spray pipe; 89. water spraying and pipe distribution; 9. and (4) a spray head.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1, the apparatus for detecting aging of an electrothermal tube disclosed by the present invention comprises two work tables 1, wherein a water tower 2 and a detector 3 are arranged on the top surface of one work table 1, and a water storage tank 5 is arranged below the work table 1; a heating water tank 7, a buffer tank 8 and a controller 85 are arranged on the top surface of the other workbench 1, and a water collecting tank 83 and a booster pump 87 are arranged below the workbench 1.
Referring to fig. 2 and 3, the four corners of the bottom end of the water tower 2 are provided with support legs 6, the outer side wall of the rear end of the water tower 2 is provided with a mounting port 21 for inserting the power supply heat pipe 11 into the water tower 2, and the outer side wall of the water tower 2 close to the mounting port 21 is welded with a mounting pipe 26 with two open ends at the mounting port 21. The mounting tube 26 is provided with the mounting panel 27 near the one end of installing port 21, and the electrothermal tube 11 includes metal protecting sleeve 12 and sets up the wiring board 13 in the mouth of pipe department of metal protecting sleeve 12, and the one end that the mounting panel 27 kept away from installing port 21 is seted up and is supplied the groove 28 of stepping down that wiring board 13 blocked in, and is provided with the intercommunication mouth 29 that is used for supplying the metal protecting sleeve 12 of heat tube 11 to stretch into water tower 2 with installing port 21 intercommunication on the diapire in groove 28 of stepping down. After the metal sheath of the electric heating tube 11 is inserted into the water tower 2 and the wiring board 13 is clamped into the abdicating groove 28, the electric heating tube 11 can be fixed by connecting the wiring board 13 with the bottom wall of the abdicating groove 28 by screwing the screw, and the mounting opening 21 is closed.
Referring to fig. 2 and 3, a sealing plate 261 is connected to an end of the mounting tube 26 away from the water tower 2 through a bolt, a wire hole for a connecting wire of the detector 3 to extend into and be electrically connected to the wiring board 13 is provided on the mounting tube 26 and on a side of the mounting plate 27 away from the water tower 2, and the detector 3 is used for supplying power to the electrothermal tube 11 and detecting an operating current of the electrothermal tube 11. The detector 3 comprises a timing module 31, a counting module 32, a current detection module 33 and three indicator lights 34; the timing module 31 is used for setting and displaying the single heating time of the electric heating tube 11 by the staff; the counting module 32 is used for recording and displaying the current power on-off times of the electric heating tube 11; the current detection module 33 is used for detecting, recording and displaying the working current of the electric heating tube 11 in the power-on state; the three indicator lights 34 are respectively a heating indicator light, a water shortage indicator light and a fault indicator light from top to bottom. When the working current of the electric heating tube 11 is abnormal, the detector 3 records the abnormal current and the current on-off times for leading out by the working personnel; wherein, after the abnormal current lasts for a set time, the detector 3 stops supplying power to the electrothermal tube 11.
Referring to fig. 2 and 4, the water tower 2 is far away from the outer side wall of the detector 3 and is communicated with a water inlet pipe 22 above the mounting port 21 (refer to fig. 3), one end of the water inlet pipe 22 far away from the water tower 2 is connected with a water pump 4 through a hose, and a water inlet of the water pump 4 is connected with a hose extending into the water storage tank 5. The bottom end of the water tower 2 is communicated with a water outlet pipe 24, one end of the water outlet pipe 24, which is far away from the water tower 2, extends into the water storage tank 5, and a water valve 25 (refer to fig. 1) is connected in series on the water outlet pipe 24. The water pump 4 is connected with an alternating current power supply 41, a liquid level relay 42 is connected between the alternating current power supply 41 and the water pump 4 in series, and a high liquid level probe 43, a medium liquid level probe 43 and a low liquid level probe 43 of the liquid level relay 42 are all arranged in the water tower 2 and are both positioned between the water inlet pipe 22 and the mounting port 21. When the water level in the water tower 2 drops to the low liquid level probe 43 of the liquid level relay 42, the pins 2 and 3 are used for guiding the drawing, and the water pump 4 is started and starts to pump the water in the water storage tank 5; when the water level in the water tower 2 rises to the high liquid level probe 43 of the liquid level relay 42, the pins 2 and 3 are reset and disconnected, and the water pump 4 stops running.
Referring to fig. 2 and 5, the top and bottom ends of the inner cavity of the water tower 2 are both in a ladder shape, and the top end of the water tower 2 is communicated with an air outlet pipe 23. The top end of the heating water tank 7 is provided with an air inlet 73, and one end of the air outlet pipe 23 far away from the water tower 2 is connected with the air inlet 73. A spiral steam channel 74 is arranged in the heating water tank 7, one end of the spiral steam channel 74 is communicated with the air inlet 73, and the other end extends out of the heating water tank 7. Specifically, the height of the spiral steam passage 74 becomes gradually lower from one end thereof near the air inlet 73 to the other end thereof, that is, the spiral steam passage 74 is spirally downwardly disposed. Two water taps 71 are arranged on the outer side wall of the heating water tank 7, a connecting pipeline 72 communicated with a tap water pipe network is communicated with the top end of the heating water tank 7, and a ball valve 75 is connected in series on the connecting pipeline 72.
Referring to fig. 1 and 6, one end of the spiral steam channel 74 extending out of the heating water tank 7 is communicated with the top of the cache tank 8, an air outlet 81 is formed in the top of the cache tank 8, a drain pipe 82 is connected to the bottom end of the cache tank 8, and one end, far away from the cache tank 8, of the drain pipe 82 extends into the water collecting tank 83. The drain pipe 82 is connected with an electromagnetic valve 84 in series, the electromagnetic valve 84 is electrically connected with a controller 85, the controller 85 is electrically connected with two liquid level sensors 86 located above the drain pipe 82, and the two liquid level sensors 86 are located in the buffer tank 8 and are sequentially arranged in the vertical direction. When the water level in the buffer tank 8 reaches the position of the two level sensors 86, namely the level sensor 86 positioned above, the controller 85 controls the electromagnetic valve 84 to be opened and discharges the water in the buffer tank 8 to the water collecting tank 83; when the water level in the buffer tank 8 reaches the level sensor 86 positioned below the two level sensors 86, the solenoid valve 84 is reset and the drain pipe 82 is no longer drained.
Referring to fig. 1 and 2, 4 spray nozzles 9 are disposed on the inner top wall of the water tower 2, and the water spraying ends of the spray nozzles 9 face the inner bottom wall of the water tower 2. The water inlet of the booster pump 87 is communicated with the water collecting tank 83 through a hose, and the water outlet of the booster pump 87 is connected with a water spraying main pipe 88 through a hose. The main water spray pipe 88 is annular and is arranged at the top end of the water tower 2, each spray head 9 is connected with a branch water spray pipe 89, and one end of the branch water spray pipe 89 far away from the spray head 9 is communicated with the main water spray pipe 88.
The implementation principle of the above embodiment is as follows:
in the initial state, there is no water in the water tower 2, after the electric heating tube 11 to be detected is installed at the installation opening 21, the alternating current power supply 41 is turned on, because the water level in the water tower 2 is lower than the low liquid level probe 43 of the liquid level relay 42, the liquid level relay 42 controls the water pump 4 to start and extract the water in the water storage tank 5, when the liquid level in the water tower 2 reaches the high liquid level probe 43 of the liquid level relay 42, the liquid level relay 42 controls the water pump 4 to stop working, namely, the connection between the water pump 4 and the alternating current power supply 41 is disconnected. At this point, the detector 3 may be activated to start detection.
When the detector 3 works, the power-on and power-off times and the real-time working current of the electric heating tube 11 can be automatically recorded and displayed. When the working current of the electric heating tube 11 is abnormal, the detector 3 records the abnormal current and the current on-off times; and after the abnormal current continues for a set time, the power supply to the electric heating tube 11 is stopped to improve the safety.
The water level is lowered because the water in the water tower 2 is heated by the electric heating tube 11 to generate steam. When the water level reaches the low level probe 43 of the level relay 42, the water pump 4 will automatically start to add water into the water tower 2 and raise the water level in the water tower 2 to the high level probe 43 of the level relay 42. And the steam generated in the water tower 2 flows into the spiral steam channel 74 in the heating water tank 7 through the outlet pipe 23.
After entering the spiral steam channel 74, the steam exchanges heat with the water in the heating water tank 7 and is condensed into water, the condensed water enters the buffer tank 8 to be stored, and a small amount of residual steam is discharged through the air outlet 81. When the water level in the buffer tank 8 reaches the position of the two level sensors 86, namely the level sensor 86 positioned above, the controller 85 controls the electromagnetic valve 84 to be opened and discharges the water in the buffer tank 8 to the water collecting tank 83; when the water level in the buffer tank 8 reaches the level sensor 86 positioned below the two level sensors 86, the solenoid valve 84 is reset and the drain pipe 82 is no longer drained. When the water tower 2 needs to be cleaned, the booster pump 87 is started to pump the water in the water collecting tank 83 to the spray head 9, so that the reuse of water resources is realized, and the energy conservation and environmental protection are facilitated.
Example two.
Referring to fig. 1 and 3, a method for detecting aging of an electrical heating tube 11 based on an apparatus for detecting aging of an electrical heating tube in an embodiment of the present invention includes the following steps:
s100, mounting an electric heating pipe 11 to be detected at a water inlet of the water tower 2;
s200, starting the alternating current power supply 41 to enable the water pump 4 to inject water into the water tower 2; wherein, when the liquid level in the water tower 2 reaches the high liquid level probe 43 (refer to fig. 2) of the liquid level relay 42, the water pump 4 stops running; when the liquid level in the water tower 2 is reduced to the low liquid level probe 43 of the liquid level relay 42, the water pump 4 starts to operate;
s300, setting single heating time of an electric heating tube 11 on the detector 3;
s400, starting the detector 3 to enable the electric heating tube 11 to start working and detect and display the working current of the electric heating tube 11 in real time;
s500, recording the power-on and power-off times of the electric heating tube 11 when the working current of the electric heating tube 11 is smaller than a set value so as to be led out by a worker, and stopping supplying power to the electric heating tube 11 after the abnormal current lasts for a set time.
In step S400, the method further includes the following steps after the detector 3 is activated:
s401, introducing steam generated by heating water by the electric heating tube 11 into the spiral steam channel 74 of the heating water tank 7;
s402, condensing the water vapor in the spiral steam channel 74 into water after heat exchange, and flowing the water into the cache tank 8 for caching;
s403, when the water in the buffer tank 8 reaches the designated liquid level, releasing the water in the buffer tank 8 into the water collecting tank 83 to realize the recycling of water resources.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (4)
1. An electrothermal tube ageing testing equipment which characterized in that: the device comprises a workbench (1) and a water tower (2) borne on the top surface of the workbench (1), wherein a mounting port (21) for mounting an electric heating tube (11) is formed in one outer side wall of the water tower (2), and a detector (3) for supplying power to the electric heating tube (11) and detecting the working current of the electric heating tube (11) is further arranged on the top surface of the workbench (1);
a water inlet pipe (22) is arranged on one outer side wall of the water tower (2) and above the mounting port (21), the water inlet pipe (22) is connected with a water pump (4) through a hose, and a water inlet of the water pump (4) is connected with a water storage tank (5) through a hose; the water pump (4) is connected with an alternating current power supply (41), a liquid level relay (42) is connected between the water pump (4) and the alternating current power supply (41) in series, and a high liquid level probe, a middle liquid level probe and a low liquid level probe (43) of the liquid level relay (42) are all arranged in the water tower (2) and are all positioned between the water inlet pipe (22) and the mounting port (21);
the top end of the water tower (2) is communicated with an air outlet pipe (23), and the bottom end of the water tower (2) is communicated with an water outlet pipe (24); one end of the water outlet pipe (24) far away from the water tower (2) extends into the water storage tank (5), and a water valve (25) is connected to the water outlet pipe (24) in series; the liquid level relay (42) is used for controlling the water pump (4) to start and start to pump water in the water storage tank (5) when the water level in the water tower (2) drops to a low liquid level probe (43) of the liquid level relay (42); the liquid level relay (42) is also used for controlling the water pump (4) to stop running when the water level in the water tower (2) rises to a high liquid level probe (43) of the liquid level relay (42);
a mounting pipe (26) is arranged on the outer side wall of the water tower (2) close to the mounting port (21) and at the mounting port (21), and a mounting plate (27) is arranged at one end, close to the mounting port (21), of the mounting pipe (26); the electric heating tube (11) comprises a metal protecting sleeve (12) and a wiring board (13) arranged at the pipe orifice of the metal protecting sleeve (12), and one end, far away from the mounting orifice (21), of the mounting board (27) is provided with a abdicating groove (28) for the wiring board (13) to be clamped in; a communicating opening (29) which is communicated with the mounting opening (21) and used for enabling a metal protecting sleeve (12) of the power supply heat pipe (11) to extend into the water tower (2) is formed in the bottom wall of the abdicating groove (28), and the wiring board (13) is connected with the bottom wall of the abdicating groove (28) through screws;
one end of the mounting pipe (26), which is far away from the water tower (2), is connected with a sealing plate (261) through a bolt, and a wire hole for a connecting wire of the detector (3) to extend into and be electrically connected with the wiring board (13) is formed in the mounting pipe (26) and is positioned on one side, which is far away from the water tower (2), of the mounting plate (27);
a heating water tank (7) is arranged on one side of the water tower (2), and a water tap (71) is arranged on the outer side wall of the heating water tank (7); the top end of the heating water tank (7) is communicated with a connecting pipeline (72) communicated with a tap water pipe network, and a ball valve (75) is connected to the connecting pipeline (72) in series; an air inlet (73) is formed in the top end of the heating water tank (7), and one end, far away from the water tower (2), of the air outlet pipe (23) is connected with the air inlet (73); a spiral steam channel (74) is arranged in the heating water tank (7), one end of the spiral steam channel (74) is communicated with the air inlet (73), and the other end of the spiral steam channel (74) extends out of the heating water tank (7) and is communicated with the cache tank (8); the height of the spiral steam channel (74) gradually becomes lower from one end close to the air inlet (73) to the other end, and an air outlet hole (81) is formed in the top end of the cache tank (8);
the detector (3) comprises:
the timing module (31) is used for setting and displaying the single heating time of the electric heating tube (11);
the counting module (32) is used for recording and displaying the power-on and power-off times of the electric heating tube (11);
the current detection module (33) is used for detecting, recording and displaying the current of the electric heating tube (11) in the power-on state;
the bottom end of the cache tank (8) is connected with a drain pipe (82), and one end, far away from the cache tank (8), of the drain pipe (82) is connected with a water collecting tank (83); the water draining pipe (82) is connected with an electromagnetic valve (84) in series, the electromagnetic valve (84) is electrically connected with a controller (85), the controller (85) is electrically connected with two liquid level sensors (86) positioned above the water draining pipe (82), and the two liquid level sensors (86) are positioned in the buffer tank (8) and are sequentially arranged along the vertical direction;
a plurality of spray heads (9) are arranged on the inner top wall of the water tower (2), and the water spraying ends of the spray heads (9) face the inner bottom wall of the water tower (2); one side of header tank (83) is provided with booster pump (87), the water inlet of booster pump (87) passes through hose and header tank (83) intercommunication, the delivery port of booster pump (87) has water spray header pipe (88) through the hose connection, each shower nozzle (9) all are connected with water spray branch pipe (89), water spray branch pipe (89) keep away from the one end and the water spray header pipe (88) intercommunication of shower nozzle (9).
2. The electrical heated tube aging testing apparatus according to claim 1, characterized in that the bottom end of the water tower (2) is provided with at least three support legs (6).
3. The electrical heated tube aging testing apparatus according to claim 2, wherein the top end and the bottom end of the inner cavity of the water tower (2) are trapezoidal.
4. An electrical heating tube aging detection method, characterized in that the electrical heating tube aging detection method is based on the electrical heating tube aging detection equipment of claim 1, and comprises the following steps:
s100, mounting an electric heating pipe (11) to be detected at a water inlet of the water tower (2);
s200, starting an alternating current power supply (41) to enable a water pump (4) to inject water into the water tower (2); when the liquid level in the water tower (2) reaches the high liquid level probe (43) of the liquid level relay (42), the water pump (4) stops running; when the liquid level in the water tower (2) is reduced to the low liquid level probe (43) of the liquid level relay (42), the water pump (4) starts to operate;
s300, setting single heating time of an electric heating tube (11) on the detector (3);
s400, starting the detector (3) to enable the electric heating tube (11) to start to work and detect and display the working current of the electric heating tube (11) in real time;
s500, recording the power-on and power-off times of the electric heating tube (11) when the working current of the electric heating tube (11) is smaller than a set value;
in step S400, after the detector (3) is activated, the method further includes the following steps:
s401, introducing steam generated by heating water by the electric heating pipe (11) into a spiral steam channel (74) of the heating water tank (7);
s402, condensing the water vapor in the spiral steam channel (74) into water after heat exchange, and enabling the water vapor to flow into a cache tank (8);
and S403, when the water in the buffer tank (8) reaches a specified liquid level, releasing the water in the buffer tank (8) into the water collecting tank (83).
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