CN112112791A - Submersible pump testing device and method - Google Patents
Submersible pump testing device and method Download PDFInfo
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- CN112112791A CN112112791A CN202010901051.7A CN202010901051A CN112112791A CN 112112791 A CN112112791 A CN 112112791A CN 202010901051 A CN202010901051 A CN 202010901051A CN 112112791 A CN112112791 A CN 112112791A
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- 238000012360 testing method Methods 0.000 title claims abstract description 213
- 238000000034 method Methods 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 128
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000000523 sample Substances 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- 238000009863 impact test Methods 0.000 claims description 13
- 230000035939 shock Effects 0.000 claims description 12
- 238000009835 boiling Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 6
- 239000004593 Epoxy Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
Abstract
The invention provides a submersible pump testing device and a submersible pump testing method, wherein the submersible pump testing device comprises a testing kettle and a console, a temperature sensing probe is arranged in the testing kettle, a cold water preparation device, a controller, a water pump and a heating device are arranged in the console, the cold water preparation device is communicated with the input end of the submersible pump through a pipeline, the output end of the submersible pump is communicated with the water inlet of the testing kettle through a pipeline, the temperature sensing probe is electrically connected with the controller, the testing kettle is placed on the heating device, and the heating device is electrically connected with the controller. According to the invention, the temperature of water in the test kettle is obtained through the temperature sensing probe, cold water is added into the test kettle according to test items to reduce the water temperature, or the heating device is started to raise the water temperature, so that the automatic monitoring and adjustment of the water temperature are realized, the existing manual operation is replaced, the labor cost of quality inspection of the submersible pump is reduced, and the error rate caused by the manual operation is effectively reduced.
Description
Technical Field
The invention relates to the field of submersible pump testing, in particular to submersible pump testing equipment and a submersible pump testing method.
Background
The cooling fan is also called an environment-friendly air conditioner, an energy-saving environment-friendly air conditioner, a water-cooling air conditioner, a cooling fan, a cold air machine or a fresh air unit, is a new industry based on evaporative cooling, and has the advantages of low investment, high efficiency and low power consumption.
The thermantidote of selling in the existing market adopts the immersible pump to draw water and reaches humidification/cooling function, and the immersible pump is as the humidification/cooling part of thermantidote, and the immersible pump is insulating and epoxy encapsulating is not good thereby causing the immersible pump electric leakage serious danger. To the bad problem of epoxy encapsulating, need carry out cold and hot shock test, boil water durability test and examine in order to examine the quality of immersible pump, present cold and hot shock test experiment, boil water production and examine durability test and need artifical whole journey to follow up, use the temperature to monitor the regulation to the test, whole process inefficiency and the precision of temperature regulation are not enough.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the testing equipment and the testing method for the submersible pump, so that the testing efficiency and the testing accuracy of the submersible pump are improved.
The purpose of the invention is realized by the following technical scheme:
in a first aspect, the invention provides a submersible pump test device, which comprises a test kettle and a console, wherein a temperature sensing probe is arranged in the test kettle, a cold water preparation device, a controller, a water pump and a heating device are arranged in the console, the cold water preparation device is communicated with the input end of the submersible pump through a pipeline, the output end of the submersible pump is communicated with the water inlet of the test kettle through a pipeline, the temperature sensing probe is electrically connected with the controller, the test kettle is placed on the heating device, and the heating device is electrically connected with the controller.
Further, the controller still electricity is connected with first solenoid valve, second solenoid valve and level sensor, be equipped with water recovery unit in the control cabinet, the water inlet of test kettle passes through first solenoid valve connects outside water source, level sensor locates in the test kettle, level sensor electricity is connected the controller, second solenoid valve one end is passed through the pipe connection the delivery port of test kettle, the other end is connected water recovery unit.
Furthermore, the water inlet of the test kettle is arranged at the top of the test kettle.
Further, be provided with control panel on the control cabinet, last high temperature test temperature setting table and the low temperature test temperature setting table of being equipped with of control panel, high temperature test temperature setting table with the equal electricity of low temperature test temperature setting table is connected the controller.
Further, the control panel further comprises a start-stop button, an emergency stop button, an indicator light and an ammeter, wherein the start-stop button, the emergency stop button and the indicator light are all electrically connected with the controller.
Further, the heating device is embodied as an electromagnetic coil.
In a second aspect, the invention further provides a submersible pump testing method, which is applied to the submersible pump testing device in the first aspect.
Further, the method specifically comprises the following steps: the test method comprises the steps of connecting a submersible pump test device and a submersible pump into 220V mains supply, setting the lowest water temperature or the highest water temperature in a test kettle according to items to be tested by the submersible pump, and testing whether the submersible pump has quality problems or not after the test time of the test kettle reaches the preset test time.
Further, according to the items to be tested of the submersible pump, the lowest water temperature or the highest water temperature in the test kettle is set, and the test time is specifically as follows:
if the submersible pump cold and hot impact test is carried out, setting the highest water temperature of the cold impact test to be K ℃ through a low-temperature test temperature setting table, setting the lowest temperature of the hot impact test to be K' through a high-temperature test temperature setting table, and setting the test time to be T;
and if the submersible pump water boiling durability test is carried out, setting the lowest temperature of the thermal shock test to be K DEG C and setting the test time to be T' through a high-temperature test temperature setting table.
Further, the quality problem of the submersible pump is specifically tested as follows:
if the submersible pump has good insulating property and pressure resistance, and no water leakage or noise exists, the submersible pump is judged to be qualified;
and if the submersible pump has any one of insulation fault, voltage-resistant fault, water leakage or noise, judging that the submersible pump is unqualified.
The invention has the beneficial effects that: the invention provides a submersible pump testing device and method, which can be used for acquiring the water temperature in a testing kettle through a temperature sensing probe, adding cold water into the testing kettle according to a testing item to reduce the water temperature, or starting a heating device to raise the water temperature, realizing automatic monitoring and adjustment of the water temperature, replacing the existing manual operation, reducing the labor cost of quality inspection of the submersible pump, and effectively reducing the error rate caused by the manual operation.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.
Fig. 1 is a schematic structural view of the submersible pump testing apparatus of the present invention.
Fig. 2 is a flow chart of a low temperature impact test of the submersible pump testing method of the present invention.
Fig. 3 is a flow chart of a high temperature impact test and a boiling durability test of the submersible pump testing method of the present invention.
Wherein the reference numbers are as follows: 1. the test kettle comprises a test kettle body, 2 parts of a console, 3 parts of a low-temperature test temperature setting table, 4 parts of a high-temperature test temperature setting table, 5 parts of a start-stop button, 6 parts of an emergency stop button, 7 parts of an indicator light, 8 parts of an ammeter and 9 parts of a water inlet of the test kettle.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in the attached drawing 1, the immersible pump test equipment of this embodiment, including test kettle 1 and control cabinet 2, be equipped with the temperature sensing probe in the test kettle 1, be equipped with cold water preparation facilities, controller, water pump and heating device in the control cabinet 2, cold water preparation facilities passes through the pipeline and is connected with the input of water pump, and the output of water pump passes through the pipeline and is connected with test kettle water inlet 9, and temperature sensing probe electric connection director, test kettle 1 places on heating device, heating device electric connection director.
Heating device specifically is solenoid, when solenoid circular telegram, heats the water in the test kettle through the electromagnetic heating principle, and the temperature sensing probe is temperature sensor for obtain the temperature in the test kettle 1, and with during temperature information carries to the controller, the main control chip of controller can be for the chip that has logical operation and control function wantonly, for example: the device comprises a MCU (micro control unit), a CPU (central processing unit), and other chips, wherein the MCU, the CPU and the like can also use a PLC (programmable logic controller) as a controller, a cold water preparation device is specifically a cold water machine and is used for preparing normal-temperature water into low-temperature water with the temperature of 0-3 ℃, the starting and stopping of the water pump are controlled by the controller, after the controller starts the water pump, the water pump pumps the prepared low-temperature water in the cold water machine into the test kettle 1, the water temperature in the test kettle 1 is reduced, the starting or the closing of the electromagnetic coil is also controlled by the controller, and when the electromagnetic coil is started, the.
Wherein, the controller still electricity is connected with first solenoid valve, second solenoid valve and level sensor, is equipped with water recovery unit in the control cabinet 2, and the water inlet of test kettle 1 passes through first solenoid valve and connects outside water source, and level sensor locates in the test kettle 1, and level sensor electricity connection controller, the delivery port of pipe connection test kettle 1 is passed through to second solenoid valve one end, and water recovery unit is connected to the other end.
Because the thermal shock test or the water boiling durability test of the submersible pump usually needs a long time, in order to avoid that the water in the test kettle 1 is evaporated and reduced along with the test time and the test effect is influenced, a water level sensor and an electromagnetic valve are arranged in the embodiment, the water level sensor is used for detecting the water level in the test kettle 1 and sending the water level information in the test kettle 1 to a controller, when the water level in the test kettle 1 is lower than a preset low water level, the controller controls a first electromagnetic valve to be opened, water is supplemented into the test kettle 1 through an external water source, and the external water source can supply water for a water storage device or through a tap water pipeline; when carrying out the cold impact test of immersible pump, because need supply microthermal cold water toward test kettle 1 in to reduce the temperature in the test kettle 1, lead to the water in the test kettle 1 to spill over easily, consequently, when level sensor acquires that the water level in the test kettle 1 is higher than when predetermineeing the high water level, the controller starts the second solenoid valve, lets the water in the test kettle 1 flow out to the water recovery unit in the control cabinet 2 from test kettle delivery port 9.
In this embodiment, the top of test kettle 1 is located to the water inlet of test kettle 1, when adding water to test kettle 1, because the action of gravity, the test kettle water inlet 9 that is located test kettle 1 top can let who flow in better.
Be provided with control panel on the control cabinet 2, the last high temperature test temperature that is equipped with of control panel sets up table 4, low temperature test temperature and sets up table 3, opens and stops button 5, scram button 6, pilot lamp 7 and ampere meter 8, and high temperature test temperature sets up table 4, low temperature test temperature and sets up table 3, opens and stops button 5, scram button 6 and the equal electric connection director of pilot lamp 7.
Wherein, high temperature test temperature sets up table 4 and is used for setting up the minimum temperature of thermal shock test or boiling water durability test, and low temperature test temperature sets up table 3 and is used for setting up the minimum temperature of cold shock test, opens and stops button 5 and is used for setting up the test of starting after highest temperature, minimum temperature and the start time, or stops the test after starting, and scram button 6 is used for promptly stopping, and pilot lamp 7 is used for instructing test equipment's operating condition, and ampere meter 8 is used for the electric leakage test of immersible pump.
Wherein, pilot lamp 7 specifically is red, yellow, green tristimulus designation lamp 7, and when test equipment normal operating, pilot lamp 7 is green, and when test equipment circular telegram nevertheless for the start test, pilot lamp 7 is yellow, and when test equipment trouble, pilot lamp 7 is red.
The working principle of the embodiment is as follows: the water temperature in the test kettle 1 is obtained through a temperature sensing probe in the test kettle 1, when the test equipment performs a cold shock test, when the water temperature in the test kettle 1 is higher than a preset water temperature, the controller controls the second electromagnetic valve to be conducted, part of water in the test kettle 1 is discharged, and then low-temperature water in a water cooler is pumped by a water pump to be added into the test kettle 1 so as to reduce the water temperature in the test kettle 1; when test equipment carries out thermal shock test or boils water durability test, when the temperature in test kettle 1 is less than predetermineeing the temperature, start the water in solenoid heating test kettle 1, when the water level is less than predetermineeing low water level simultaneously, the first solenoid valve of controller control switches on, and during first solenoid valve switched on makes outside water source inflow test kettle 1, keeps the water level in the test kettle 1 to the realization is to the automatic test of immersible pump.
This embodiment provides a immersible pump test equipment, obtains the temperature in the test kettle 1 through temperature sensing probe, according to the test item toward adding cold water in the test kettle 1 and reduce the temperature, or start solenoid and rise the temperature, realize the automatic control and the adjustment to the temperature, replace current manual operation, reduced the cost of labor of immersible pump quality inspection to effectively reduced the fault rate that leads to by manual operation.
As shown in fig. 2 to 3, the present embodiment provides a submersible pump testing method, which is applied to the submersible pump testing apparatus according to embodiment 1, and is specifically divided into a cold and hot impact resistance test and a boiling water durability test.
According to different requirements, the highest water temperature of the cold impact test is set to be K ℃, the lowest temperature of the thermal impact test is K', and the test time of the cold and hot impact test is set to be T; the lowest water temperature for the pump boiling water durability test is K DEG C, and the test time is T'.
In this embodiment, the highest water temperature of the cold shock test is specifically set to 5 ℃, the lowest temperature of the thermal shock test is 70 ″, and the test time of the cold and hot shock test is set to 24 hours; the minimum water temperature for the pump boil water durability test was 40 "c, and the test time was set at 168 hours.
Wherein, cold and hot impact test specifically is: the testing method comprises the steps of connecting a submersible pump testing device and a submersible pump into 220V mains supply, setting the highest water temperature of a testing kettle 1 to be 5' through a low-temperature testing temperature setting table 3, setting the lowest water temperature of the testing kettle 1 to be 70 ℃ through a high-temperature testing temperature setting table 4, setting testing time to be 24 hours, pressing a start-stop button 5, and testing whether the submersible pump has quality problems or not after the testing time of the testing kettle 1 reaches 24.
The water boiling durability test specifically comprises the following steps: the test equipment of the submersible pump and the submersible pump are connected into 220V mains supply, the lowest water temperature of the test kettle 1 is set to be 40 ℃ through the high-temperature test temperature setting table 4, the test time is set to be 168 hours, the start-stop button 5 is pressed, and the submersible pump is tested whether the quality problem occurs after the test time of the test kettle 1 reaches 168.
Wherein, whether test immersible pump appears quality problem specifically does:
if the submersible pump has good insulating property and pressure resistance, and no water leakage or noise exists, the submersible pump is judged to be qualified;
and if the submersible pump has any fault of insulation fault, voltage-resistant fault, water leakage or noise, judging that the submersible pump is unqualified.
The invention has the beneficial effects that: the invention provides a submersible pump testing method, which realizes automatic monitoring and adjustment of water temperature through the submersible pump testing equipment in embodiment 1, replaces the existing manual operation, reduces the labor cost of quality inspection of the submersible pump, and effectively reduces the error rate caused by manual operation.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a immersible pump test equipment, its characterized in that, includes test kettle and control cabinet, be equipped with the temperature sensing probe in the test kettle, be equipped with cold water preparation facilities, controller, water pump and heating device in the control cabinet, cold water preparation facilities pass through the pipeline with the input intercommunication of immersible pump, the output of immersible pump pass through the pipeline with the water inlet intercommunication of test kettle, the temperature sensing probe electricity is connected the controller, the test kettle place in heating device is last, the heating device electricity is connected the controller.
2. The submersible pump testing device of claim 1, wherein the controller is further electrically connected with a first solenoid valve, a second solenoid valve and a water level sensor, a water recovery device is arranged in the console, a water inlet of the testing kettle is connected with an external water source through the first solenoid valve, the water level sensor is arranged in the testing kettle, the water level sensor is electrically connected with the controller, one end of the second solenoid valve is connected with a water outlet of the testing kettle through a pipeline, and the other end of the second solenoid valve is connected with the water recovery device.
3. The submersible pump testing arrangement of claim 1, wherein the water inlet of the test kettle is disposed at a top of the test kettle.
4. The submersible pump testing device of claim 1, wherein a control panel is disposed on the console, a high temperature testing temperature setting table and a low temperature testing temperature setting table are disposed on the control panel, and both the high temperature testing temperature setting table and the low temperature testing temperature setting table are electrically connected to the controller.
5. The submersible pump testing apparatus of claim 4, wherein the control panel further comprises a start-stop button, an emergency-stop button, an indicator light, and an ammeter, the start-stop button, the emergency-stop button, and the indicator light all being electrically connected to the controller.
6. A submersible pump testing arrangement according to claim 1, characterized in that the heating means is embodied as an electromagnetic coil.
7. A submersible pump testing method, characterized in that the submersible pump testing method is applied to the submersible pump testing apparatus of any one of claims 1 to 6.
8. The submersible pump testing method according to claim 7, characterized by specifically: the test method comprises the steps of connecting a submersible pump test device and a submersible pump into 220V mains supply, setting the lowest water temperature or the highest water temperature in a test kettle according to items to be tested by the submersible pump, and testing whether the submersible pump has quality problems or not after the test time of the test kettle reaches the preset test time.
9. The method for testing the submersible pump according to claim 8, wherein the lowest water temperature or the highest water temperature in the test kettle is set according to the items to be tested of the submersible pump, and the test time is specifically as follows:
if the submersible pump cold and hot impact test is carried out, setting the highest water temperature of the cold impact test to be K ℃ through a low-temperature test temperature setting table, setting the lowest temperature of the hot impact test to be K' through a high-temperature test temperature setting table, and setting the test time to be T;
and if the submersible pump water boiling durability test is carried out, setting the lowest temperature of the thermal shock test to be K DEG C and setting the test time to be T' through a high-temperature test temperature setting table.
10. The method for testing the submersible pump according to claim 8, wherein the step of testing whether the submersible pump has a quality problem is specifically as follows:
if the submersible pump has good insulating property and pressure resistance, and no water leakage or noise exists, the submersible pump is judged to be qualified;
and if the submersible pump has any one of insulation fault, voltage-resistant fault, water leakage or noise, judging that the submersible pump is unqualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010901051.7A CN112112791A (en) | 2020-08-31 | 2020-08-31 | Submersible pump testing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010901051.7A CN112112791A (en) | 2020-08-31 | 2020-08-31 | Submersible pump testing device and method |
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| CN112112791A true CN112112791A (en) | 2020-12-22 |
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| CN202010901051.7A Pending CN112112791A (en) | 2020-08-31 | 2020-08-31 | Submersible pump testing device and method |
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| CN203824753U (en) * | 2014-03-13 | 2014-09-10 | 潍柴动力股份有限公司 | Engine cold and hot impact test device |
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| CN104712561A (en) * | 2015-01-22 | 2015-06-17 | 晋州市水泵厂 | Automatic immersible pump water shortage protection control device and application method |
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| CN105841936A (en) * | 2016-03-23 | 2016-08-10 | 潍柴动力股份有限公司 | Thermostat cold and heat impact test system |
| CN107843437A (en) * | 2018-01-04 | 2018-03-27 | 滨州学院 | A kind of electromagnetic heating type cold-hot impact test system and method |
| CN207879577U (en) * | 2017-12-28 | 2018-09-18 | 赛兹(常州)塑料传动器件有限公司 | Testing water pump tooling |
| CN213838860U (en) * | 2020-08-31 | 2021-07-30 | 格力电器（中山）小家电制造有限公司 | Submersible pump test equipment |
-
2020
- 2020-08-31 CN CN202010901051.7A patent/CN112112791A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203824753U (en) * | 2014-03-13 | 2014-09-10 | 潍柴动力股份有限公司 | Engine cold and hot impact test device |
| CN204314242U (en) * | 2014-12-30 | 2015-05-06 | 高铁检测仪器（东莞）有限公司 | A kind of water circulation type freezing-thawing test machine |
| CN104712561A (en) * | 2015-01-22 | 2015-06-17 | 晋州市水泵厂 | Automatic immersible pump water shortage protection control device and application method |
| CN104832419A (en) * | 2015-05-14 | 2015-08-12 | 苏州工业职业技术学院 | Water pump testing system |
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