CN203685543U - Low-temperature water pump test device - Google Patents
Low-temperature water pump test device Download PDFInfo
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- CN203685543U CN203685543U CN201420064769.5U CN201420064769U CN203685543U CN 203685543 U CN203685543 U CN 203685543U CN 201420064769 U CN201420064769 U CN 201420064769U CN 203685543 U CN203685543 U CN 203685543U
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Abstract
The utility model discloses a low-temperature water pump test device. The low-temperature water pump test device comprises a cooling water device, a PID controller and a water circulating system. The water circulating system comprises a water tank and a test pump, a plurality of valves, and a flow meter or a temperature sensor are arranged in the water circulating system, the water velocity and the temperature of water in the water circulating system can be measured through the flow meter and the temperature sensor, and whether circulating water flows into or out of the water tank is controlled through the valves. The water circulating system is connected with the cooling water device, the temperature of the circulating water in the water circulating system can be controlled through the cooling water device, the PID controller is connected with the cooling water device and used for controlling the temperature of the circulating water in the cooling water device to be balanced and conducting overtemperature protection on the test device, and therefore the low temperature of the circulating water for test and use needed in the water circulating system can be reached. Through the test device, balance control over the low temperature of the water circulating system can be effectively achieved.
Description
Technical field
The utility model relates to low temperature water pump field, relates in particular to a kind of low temperature water pump testing apparatus.
Background technique
Along with the fast development of China's economy, refrigeration is increasingly extensive with the application of cryogenic technique in social every field, particularly in the national economic development, there is wide application market in water pump field, so for design and manufacture place meet all trades and professions require high-performance, high-quality water pump, China is since late nineteen eighties the early 1990s in 20th century, be accompanied by extensive use and the testing meter and instrument of electronic technology, developing by leaps and bounds of automatic control technology, more domestic R&D institutions are in succession studied and develop water pump testing apparatus, what they were water pump quality improves constantly, the continuous perfect guiding effect of having brought into play of pump performance.But compare with external pump industry, there is very large gap in Chinese pump industry on designed capacity, capacity for technological innovation and aspect of performance.
U.S., moral, day etc. are national in long-term pump production, using, and have set up a perfect standards system to obtain better benefit.The current detection field at water pump, laboratory both domestic and external all only has part detectability mostly, be that the detection of water pump efficiency is only focused in part laboratory, without the qualification of safety certificate, only there is the equipment of safety certificate in part laboratory, the testing requirement of water pump efficiency, temperature, performance be cannot meet, thereby certain social and economic benefits and meaning produced.
In addition, in existing technology, the generally detection to water temperature low temperature and control and can not reach lower temperature of general low temperature water pump or low-temperature cold water unit, thereby make it, this low temperature water detects and circulation carrying out can not realizing in low temperature water cyclic process.
Therefore, be necessary to propose a kind of low temperature water pump testing apparatus that completes measuring ability as much as possible in limited place.
Model utility content
In order to overcome the defect of prior art, the utility model aims to provide a kind of applied range, the low temperature water pump testing apparatus to charge in batteries in several ways.
To achieve these goals; the utility model provides a kind of low temperature water pump testing apparatus; comprise a water circulation system; described low temperature water pump testing apparatus also comprises a chilled water unit and PID controller; described chilled water unit connects described water circulation system; and described PID controller connects described chilled water unit, described PID controller is for controlling the temperature of chilled water unit cooling water described in balance, and in the time of described circulation excess Temperature, plays overtemperature prote effect.
Preferably, described PID controller at least comprises a PID controller and the 2nd PID controller.
Preferably, described chilled water unit comprises a handpiece Water Chilling Units and Hot water units, described chilled water unit carries out cooling and heating by described handpiece Water Chilling Units and described Hot water units to circulating water respectively, thereby can be according to the temperature of controlled circulation water, makes it be controlled at 5-60 ℃ of left and right; And described handpiece Water Chilling Units is connected respectively a described PID controller and described the 2nd PID controller with described Hot water units.
Preferably, described handpiece Water Chilling Units is provided with condensation device, and described condensation device is for the circulating water of cooling described handpiece Water Chilling Units; Described Hot water units is provided with electric heater, and described electric heater is for heating the circulating water of described Hot water units.
Preferably, described Hot water units also connects a controllable silicon, and described the 2nd PID controller connects respectively the temperature transducer of described controllable silicon and described Hot water units.
Preferably, described water circulation system comprises a water tank and test pump, and is provided with some valves and flowmeter between described water tank and described test pump; Described PID controller connects described chilled water unit and described water tank.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, low temperature water pump testing apparatus of the present utility model combines by this chilled water unit and water circulation system, and under the control of PID controller, effectively control the control of this chilled water unit of balance to circulating water temperature or play the effect of overtemperature prote, thereby can effectively reduce the temperature of this circulating water and in the time that circulating water temperature is too high, cut off the water supply of the Hot water units of this low temperature water pump testing apparatus, and lower undesirable time at circulating water temperature, can also make it reach the temperature of appointment to circulating water heating by the heating water chamber in this chilled water unit, thereby the low temperature that reaches water pump requires and tests.
2, low temperature water pump testing apparatus of the present utility model is by the connection combination of each device, that cooling water tank upon mediation in low temperature water pump testing apparatus makes its temperature approach setting temperature, and open water pumping source, adjust a tested air conditioner power supply voltage and confirm that whether this pump working state is normal, the valve of adjusting this pump outlet meets the flow of the needed circulating water of test, and measure and judge that whether circulating water temperature is qualified by this device, control that balance heats circulating water or cooling according to this PID controller, improve the detection effect of this low temperature water pump testing apparatus.
Accompanying drawing explanation
Fig. 1 is the utility model low temperature water pump testing apparatus structured flowchart;
Fig. 2 is the structural representation that the utility model low temperature water pump testing apparatus is implemented;
Fig. 3 is the partial structurtes enlarged diagram of the chilled water unit of the low temperature water pump testing apparatus structure of the utility model enforcement;
Fig. 4 is the partial structurtes enlarged diagram of the water circulation system of the low temperature water pump testing apparatus structure of the utility model enforcement.
Symbol list:
11-the one PID controller, 12-the 2nd PID controller, 13-stirrer, 14-electric heater, 15-temperature transducer, 16-condensation tube, 17-water tank, 18-test pump.
embodiment:
Referring to the accompanying drawing that the utility model embodiment is shown, below will describe in more detail the utility model.But the utility model can be with realizations such as multi-form, specifications, and should not be construed as the embodiment's who is subject in this proposition restriction.On the contrary, it is abundant and complete open in order to reach proposing these embodiments, and makes more relevant those skilled in the art person understand scope of the present utility model completely.In these accompanying drawings, for clearly visible, may zoom in or out relative size.
Refer now to Fig. 1 to Fig. 4 and describe the low temperature water pump testing apparatus of implementing according to the utility model in detail, as Fig. 1 and with reference to as shown in figure 2, the low temperature water pump testing apparatus that the utility model provides, this low temperature water pump testing apparatus comprises chilled water unit, PID controller and water circulation system, this water circulation system comprises a water tank 17 and test pump 18, and in this water circulation system, be provided with some valves, flowmeter and temperature transducer, can be by water velocity and temperature in this flowmeter and this water circulation system of temperature sensor measurement, and can be by flowing in this this water tank of valve control or outflow circulating water, this circulation is connected with this chilled water unit, the temperature of the circulating water in this circulation can be controlled by this chilled water unit, this PID controller connects this chilled water unit, for controlling the temperature of this chilled water unit circulating water of balance, and this PID controller is connected similar thermometer with temperature transducer, at circulating water temperature too high or when too low by this PID controller control and cut off this chilled water unit this water circulation system is supplied water, thereby can make it reach lower temperature and the overtemperature prote effect of circulating water of required test and use in this circulation.
Wherein, as shown in Figure 2, this PID controller at least comprises two controllers, is respectively a PID controller 11 and the 2nd PID controller 12, the one PID controllers 11 are all connected this chilled water unit with the 2nd PID controller 12; Concrete, this chilled water unit comprises a handpiece Water Chilling Units and a Hot water units, this handpiece Water Chilling Units is mainly carried out cooling by a condenser fan or condensation tube 16 to circulating water, this Hot water units mainly heats circulating water by an electric heater 14, and under the control balance of PID controller the temperature of circulating water in balance this handpiece Water Chilling Units of control and Hot water units respectively, avoid temperature variation excessive; And by being set respectively in this chilled water unit, handpiece Water Chilling Units and Hot water units can carry out respectively cooling and heat treated to circulating water, thereby can be in circulating water process, if when reduction circulating water temperature exceedes limit value, affect the detection of low temperature water pump testing apparatus, can carry out heat treated to circulating water by this Hot water units.Concrete, in this Hot water units, be provided with electric heater 14, temperature transducer 15 and stirrer 13, by this stirrer 13 and electric heater 14, the circulating water in Hot water units is carried out to homogeneous heating, this Hot water units also connects a controllable silicon, the 2nd PID controller 12 connects this temperature transducer 15 and controllable silicon SCR, thus the temperature of circulating water in effective control this Hot water units of balance; And a PID controller 11 connects water tank 17 in these water circulation systems and the handpiece Water Chilling Units in chilled water unit, thus the temperature of controlling in these handpiece Water Chilling Units by a PID controller 11.In the present embodiment, the temperature of the circulating water in this handpiece Water Chilling Units is 5 ℃ to 15 ℃, and the temperature in this Hot water units is 15 ℃ to 65 ℃, and 15 ℃ are generally room temperature.
And, in specific implementation process, as shown in Figure 3, this handpiece Water Chilling Units and Hot water units are all connected with a water pump outward, and water pump is also connected with a VSD device outward, the similar frequency variator of this VSD device, regulate the water flow of this chilled water unit by this VSD device, the one PID controller 11 connects respectively the temperature transducer of water tank 17 in this VSD device and water circulation system, the equalized temperature of controlling in this water tank 17 by a PID controller 11, thereby the test effect of the low temperature water pump testing apparatus that raising the present embodiment proposes.
In addition, in specific implementation process, when the condensation device of the duct thermostat of this handpiece Water Chilling Units as condensation tube 16 or condenser fan by its circulating water temperature adjusting proximity during to setting temperature, can open the power supply of this test pump and adjust a tested air conditioner makes it reach temperature required, whether the working state of simultaneously confirming this test pump is normal, and by regulating the valve in the test pump outlet port in this water circulation system to meet the demand of test traffic; When each data are after PID controller balance and stability, record the information such as flow, temperature of this PID controller, thereby know temperature and the flow of the circulating water of this low temperature water pump testing apparatus control.After having tested, can close successively electric heater, the condensation tube of handpiece Water Chilling Units and the circulating water pump of handpiece Water Chilling Units of this test pump circuit, Hot water units, avoid this low temperature water pump testing apparatus to continue action.Thereby effectively improve experimental result by this low temperature water pump testing apparatus, and can meet many measuring abilities of circulating water pump temperature, flow etc.
The chilled water unit of the low temperature water pump testing apparatus that the utility model provides is not as limit, circulating water in handpiece Water Chilling Units and Hot water units in this chilled water unit can also heat by other device, in this handpiece Water Chilling Units, be also provided with temperature transducer and be convenient to the temperature that this PID controller detects according to this temperature transducer and carry out temperature balance control, thereby effectively reach the test of this low temperature water pump testing apparatus.
Obviously, those skilled in the art can carry out various changes and distortion and not depart from spirit and scope of the present utility model the utility model.Like this, if these modifications of the present utility model and distortion belong in the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these and changes interior.
Claims (6)
1. a low temperature water pump testing apparatus, comprise a water circulation system, it is characterized in that, described low temperature water pump testing apparatus also comprises a chilled water unit and PID controller, described chilled water unit connects described water circulation system, and described PID controller connects described chilled water unit, described PID controller is for controlling the temperature of chilled water unit cooling water described in balance.
2. low temperature water pump testing apparatus according to claim 1, is characterized in that, described PID controller at least comprises a PID controller and the 2nd PID controller.
3. low temperature water pump testing apparatus according to claim 2, is characterized in that, described chilled water unit comprises a handpiece Water Chilling Units and Hot water units, described chilled water unit respectively by described handpiece Water Chilling Units and described Hot water units to circulating water and heating; And described handpiece Water Chilling Units is connected respectively a described PID controller and described the 2nd PID controller with described Hot water units.
4. low temperature water pump testing apparatus according to claim 3, is characterized in that, described handpiece Water Chilling Units is provided with condensation device, and described condensation device is for the circulating water of cooling described handpiece Water Chilling Units; Described Hot water units is provided with electric heater, and described electric heater is for heating the circulating water of described Hot water units.
5. low temperature water pump testing apparatus according to claim 4, is characterized in that, described Hot water units also connects a controllable silicon, and described the 2nd PID controller connects respectively the temperature transducer of described controllable silicon and described Hot water units.
6. low temperature water pump testing apparatus according to claim 1, is characterized in that, described water circulation system comprises a water tank and test pump, and is provided with some valves and flowmeter between described water tank and described test pump; Described PID controller connects described chilled water unit and described water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064769.5U CN203685543U (en) | 2014-02-13 | 2014-02-13 | Low-temperature water pump test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064769.5U CN203685543U (en) | 2014-02-13 | 2014-02-13 | Low-temperature water pump test device |
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| Publication Number | Publication Date |
|---|---|
| CN203685543U true CN203685543U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420064769.5U Expired - Fee Related CN203685543U (en) | 2014-02-13 | 2014-02-13 | Low-temperature water pump test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753996A (en) * | 2022-05-07 | 2022-07-15 | 上海金脉汽车电子有限公司 | Water pump test bench and test method |
-
2014
- 2014-02-13 CN CN201420064769.5U patent/CN203685543U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753996A (en) * | 2022-05-07 | 2022-07-15 | 上海金脉汽车电子有限公司 | Water pump test bench and test method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20150213 |
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| EXPY | Termination of patent right or utility model |