CN115387993A - Device and method for testing fluid characteristics of pump by using gas - Google Patents
Device and method for testing fluid characteristics of pump by using gas Download PDFInfo
- Publication number
- CN115387993A CN115387993A CN202110570837.XA CN202110570837A CN115387993A CN 115387993 A CN115387993 A CN 115387993A CN 202110570837 A CN202110570837 A CN 202110570837A CN 115387993 A CN115387993 A CN 115387993A
- Authority
- CN
- China
- Prior art keywords
- pump
- information
- gas
- testing
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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 relates to the technical field of pump inspection, in particular to a device and a method for testing fluid characteristics of a pump by using gas. An apparatus for testing fluid characteristics of a pump with a gas, the performance of the pump being verified by simulating the liquid with the gas, the verifying apparatus comprising: an input device connected between the gas input and the pump, the input device including a pressure reducing valve and a throttle valve connected to each other; an output device connected between the pump and the gas output port, the output device including a flow meter. The device for testing the fluid characteristics of the pump by using the gas has the following advantages: the liquid with different properties is simulated by adjusting the gas with different pressures and flows, the performance of the pump is tested, the testing efficiency is improved, a real and accurate testing result can be obtained, no residual liquid exists in the pump after testing, and the property change of the liquid conveyed by the pump in the application process is avoided.
Description
Technical Field
The invention relates to the technical field of pump testing, in particular to a device and a method for testing fluid characteristics of a pump by using gas.
Background
Pumps have found widespread use as a powered mechanism for fluid delivery. It is common that water is delivered by a pump to deliver water from a lower location to a higher location, for example, in rural land irrigation where significant results are obtained. However, the properties vary with the type of liquid, for example, the viscosity of the liquid has a significant effect on the flow properties, and the performance of the pump determines the delivery capacity of the liquid for a particular property. Therefore, in liquid delivery, the performance of the pump is of paramount importance.
In many industries, for example, the daily chemical industry, the types of liquids are various, the performances are different, and various liquids contain different chemical substances, so when a pump is tested, each liquid needs to be tested in order to test the delivery performance of the pump to different liquids, but after multiple liquids are mixed in the pump, the properties of the liquids are changed, and an accurate test result cannot be obtained. In addition, the inspection efficiency is low when the inspection is performed by passing various liquids through the pump. In addition, after testing, the liquid remaining in the pump can affect the properties of the liquid delivered in response to use. Therefore, when the performance of the pump is tested, liquid with different properties needs to be simulated through other substances and modes for testing, and a relatively real and accurate test result can be obtained.
Disclosure of Invention
In view of the above, the present invention is directed to a device and a method for testing fluid characteristics of a pump by using gas, which use a method for testing performance of a pump by simulating liquids with different properties by adjusting pressure and flow rate of the input gas, thereby solving the problems of low testing efficiency, failure to obtain a true and accurate testing result, influence of the liquid remaining in the pump on the properties of the liquid in application, and the like.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an apparatus for testing fluid characteristics of a pump with a gas, the performance of the pump being verified by the gas simulating the liquid, the verifying apparatus comprising:
an input device connected between the gas input and the pump, the input device including a pressure reducing valve and a throttle valve connected to each other;
an output device connected between the pump and the gas output port, the output device including a flow meter.
Further, the inspection apparatus further includes:
an ammeter connected to the pump.
Further, the inspection apparatus further includes:
a monitoring device, comprising:
the processor is used for receiving pressure information of the pressure reducing valve, input flow information of the throttling valve, output flow information of the flowmeter and current information of the ammeter, sending a control command to the pump, and outputting the pressure information, the input flow information, the output flow information and the current information as well as a control result;
the controller receives the control instruction sent by the processor and controls the pump according to the control instruction;
and the display is used for receiving and displaying the pressure information, the input flow information, the output flow information, the current information and the control result.
Further, the monitoring device further includes:
and the operation unit is used for inputting an operation instruction to the processor.
Further, the operation unit is disposed on the display.
A test method for testing a fluid characteristic of a pump with gas by the apparatus of any one of the above, the test method comprising:
s100, inputting initial parameters and starting the inspection device, wherein the method comprises the following steps of;
s110, inputting pressure of a reducing valve and input flow of a throttle valve;
s200, obtaining the inspection result information, including:
s210, acquiring output flow information;
s300, transmitting the inspection result information to a processor, and judging whether the pump meets the specified qualified standard;
and S400, outputting a judgment result of the pump.
Further, in step S110, the method further includes:
and S111, setting a plurality of pressure values.
Further, in step S100, the method further includes:
and S120, inputting a voltage value of the hydraulic pump.
Further, in step S200, the method further includes:
and S220, acquiring current value information of the pump.
Further, in step S300, the method further includes:
the qualification criteria for output flows include an upper limit output flow and a lower limit output flow.
Compared with the prior art, the pump disclosed by the invention is a device for testing the fluid characteristics of the pump by using gas, and has the following advantages:
the technical scheme has the advantages that the liquid with different properties is simulated by adjusting the gas with different pressures and flows, the performance of the pump is tested, the testing efficiency is improved, a real and accurate testing result can be obtained, no residual liquid exists in the pump after testing, and the property change of the liquid conveyed by the pump in the application process is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:
FIG. 1 is a schematic diagram of an apparatus for testing fluid characteristics of a pump using gas according to an embodiment of the present invention;
FIG. 2 is a block diagram of an apparatus for testing fluid characteristics of a pump using gas according to an embodiment of the present invention;
FIG. 3 is a flow chart of a testing method according to an embodiment of the present invention;
fig. 4 is a flowchart of an operation procedure of a monitoring device of the testing method according to the embodiment of the present invention;
FIG. 5 is a graph of pump test results according to an embodiment of the present invention.
Description of the reference numerals:
10-pump, 20-input device, 21-pressure reducing valve, 22-throttle valve, 30-flow meter, 40-monitoring device, 41-processor, 42-controller, 43-display, 44-operation unit, 50-gas input port, 60-gas output port, 70-current meter.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
The descriptions in this document referring to "first", "second", "upper", "lower", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," "upper," "lower," or "lower" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it is necessary that a person skilled in the art can realize the combination, and the technical solutions in the embodiments are within the protection scope of the present invention.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, an apparatus for testing fluid characteristics of a pump with gas by simulating liquid with gas to verify the performance of the pump, the apparatus comprising: an input device 20 and an output device, the input device 20 being connected between a gas input 50 and said pump 10, said input device 20 comprising a pressure reducing valve 21 and a throttle valve 22 connected to each other. An output device, including a flow meter 30, is connected between the pump 10 and the gas output 60.
First, the pressure of the pressure reducing valve 21 and the flow rate of the throttle valve 22 are set, and the gas is input to the pump 10 from the gas input port 50 through the input device 20 at a set pressure and flow rate. A certain liquid is simulated by setting the pressure and the flow of the gas, so that the input gas is matched with the flow of the liquid. After passing through the pump 10, the gas flows out of the gas input port 60 through the flow meter 30, and the flow rate of the gas through the output device is detected by the flow meter 30. By comparing the flow rate with the actual flow rate of the liquid, a performance test result of the pump 10 is obtained.
Specifically, as shown in fig. 2, the testing device further includes a current meter 70 connected to the pump 10.
The output current of the pump 10 is checked by the current meter 70, and when the output current is detected to be out of the current threshold range, the pump 10 stops operating.
Further, the inspection apparatus further includes: a monitoring device 40 including a processor 41, a controller 42 and a display 43.
The processor 41 receives pressure information of the pressure reducing valve 21, input flow information of the throttle valve 22, output flow information of the flowmeter 30, and current information of the ammeter 70, and sends a control instruction to the pump 10, outputting the pressure information, the input flow information, the output flow information, and the current information, and a control result.
The controller 42 receives the control instruction sent by the processor 41 and controls the pump 10 according to the control instruction.
And a display 42 for receiving and displaying the pressure information, the input flow information, the output flow information, the current information and the control result.
Information on the pressure and input flow rate of the gas on the input device 20 side, information on the output flow rate on the output device side, and information on the current of the pump 10 are received by the monitoring device 40. When at least one of the above information is judged to be out of the standard range, a stop instruction is sent to the pump 10 through the controller 42. And comparing the received current information and output flow information with a pre-stored standard range, and judging whether the pump 10 is qualified. The processor 41 also sends the received information and the judgment result, the operation state, and the like to the display 43 in real time.
Further, the monitoring apparatus 40 further includes an operation unit 44 that inputs an operation instruction to the processor 41.
Initial parameters, operation instructions, and the like can be input through the operation unit 44.
Further, the operation unit 44 is disposed on the display 43.
The operation unit 44 is preferably a keyboard and a mouse. A touch display screen can be adopted to replace the operation unit 44 and the display 43, so that the space is saved, the equipment structure is simplified, and the operation is convenient.
A method of testing a fluid characteristic of a pump with a gas, as shown in fig. 3, by the apparatus of any one of the above, the method comprising:
s100, inputting initial parameters and starting the inspection device, wherein the method comprises the following steps of;
s110, inputting the pressure of a reducing valve and the input flow of a throttle valve;
s200, obtaining the inspection result information, including:
s210, acquiring output flow information;
s300, transmitting the inspection result information to a processor, and judging whether the pump meets the specified qualified standard;
and S400, outputting a judgment result of the pump.
The initial parameters of the pressure value and the flow are set, so that the input gas has the characteristics of certain specific liquid, the liquid is input into the pump 10 in a simulation mode, the gas flows through the pump and is output from a gas output port, the gas output flow is measured through a flowmeter before output, and whether the output flow is within the threshold range or not is judged, so that the qualified degree of the pump is judged.
The method is used for detecting the qualification degree of the pump, so that the detection efficiency is improved, a real and accurate detection result can be obtained, no residual liquid exists in the pump after detection, and the change of the property of the liquid conveyed by the pump in the application process is avoided.
Further, in step S110, the method further includes:
and S111, setting a plurality of pressure values.
An acceptable pump needs to be suitable for various liquids with different characteristics, and the pump needs to have a lower limit delivery flow rate and an upper line delivery flow rate, so that during testing, if the flow rate of the flow meter is greater than the lower limit value within a specified time, the pump is acceptable at the lower limit, and if the flow rate of the flow meter is less than the upper limit value, the pump is acceptable at the upper limit. Qualified pumps are arranged between the upper-limit qualified pump and the lower-limit qualified pump.
According to the principle, when initial parameters are input, a plurality of pressure values are set, tests are respectively carried out, and whether the pump meets the requirements of a required qualified pump is checked.
Further, in step S100, the method further includes:
and S120, inputting a voltage value of the hydraulic pump.
Further, in step S200, the method further includes:
and S220, acquiring current value information of the pump.
The electrical performance of a qualified pump is also one of the important factors. For example, when a normal voltage is applied to the motor of the pump, the pump is not started, burnt or otherwise malfunctioning, and the pump must have its own mechanical or electronic malfunction, belonging to a defective pump. Therefore, in the verification process, a voltage value is input, and an output current value at the voltage is tested.
Further, in step S300, the method further includes:
the qualification criteria for output flows include an upper limit output flow and a lower limit output flow.
The above-described inspection method is specifically described below as an example. As shown in fig. 4.
S100, inputting initial parameters through an operation unit;
s110, setting the flow value of a throttle valve by the initial parameter;
s111, setting pressure values of a plurality of pressure reducing valves according to initial parameters, wherein the optimal pressure value is set to 3-5 points;
s120, setting the voltage value of the direct current motor by the initial parameters;
and S130, starting the pump and starting a timer for timing.
S200, obtaining inspection result information, wherein the inspection result information comprises:
first, the output current of the pump is detected, and step S300 is performed.
Then, the output flow rate is detected, and step S300 is performed.
S300, judging whether the pump is qualified or not, and the method comprises the following steps:
and judging whether the output current exceeds a threshold range, and if so, judging the pump as a disqualified pump. If the liquid is within the threshold value range, the liquid is judged to belong to a qualified pump. Otherwise, the pump is failed.
And judging whether the output flow is between the upper limit output flow and the lower limit output flow, if the output flow is between the upper limit output flow and the lower limit output flow, judging the pump as a qualified pump, and if not, judging the pump as an unqualified pump.
Judging whether the preset pressure value is detected completely, if not, returning to the step S130, and if so, going to the step S400
And S400, outputting a judgment result.
As a result of the final determination, as shown in fig. 5, the output flow rate of the qualified pump is between the upper limit output flow rate and the lower limit output flow rate, and the output flow rate of the unqualified pump exceeds the ranges of the upper limit output flow rate and the lower limit output flow rate.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. An apparatus for testing fluid characteristics of a pump with a gas, wherein the performance of the pump is tested by simulating a liquid with the gas, the testing apparatus comprising:
an input device (20) connected between a gas input (50) and the pump (10), the input device (20) comprising a pressure reducing valve (21) and a throttle valve (22) connected to each other;
an output device connected between the pump (10) and a gas outlet (60), the input device comprising a flow meter (30).
2. The apparatus of claim 1, further comprising:
an ammeter (70) connected to the pump (10).
3. The apparatus of claim 2, further comprising:
monitoring device (40) comprising:
a processor (41) that receives pressure information of the pressure reducing valve (21), input flow information of the throttle valve (22), output flow information of the flow meter (30), and current information of the current meter (70), and that sends a control instruction to the pump (10), outputs the pressure information, the input flow information, the output flow information, and the current information, and a control result;
a controller (42) receiving the control instruction sent by the processor (41) and controlling the pump (10) according to the control instruction;
a display (43) receiving and displaying the pressure information, the input flow information, the output flow information, the current information, and the control result.
4. The apparatus of claim 3, wherein the monitoring device (40) further comprises:
an operation unit (44) that inputs an operation instruction to the processor (41).
5. The apparatus of claim 4,
the operation unit (44) is provided on the display (43).
6. A method of testing a fluid property of a pump with a gas, wherein the method of testing the fluid property of the pump is performed by the apparatus of any one of claims 1 to 5, the method comprising:
s100, inputting initial parameters and starting the inspection device, wherein the method comprises the following steps of;
s110, inputting the pressure of a reducing valve and the input flow of a throttle valve;
s200, obtaining the inspection result information, including:
s210, acquiring output flow information;
s300, transmitting the inspection result information to a processor, and judging whether the pump meets the specified qualified standard;
and S400, outputting a judgment result of the pump.
7. The test method according to claim 6,
in step S110, the method further includes:
and S111, setting a plurality of pressure values.
8. The test method of claim 6,
in step S100, the method further includes:
and S120, inputting a voltage value of the hydraulic pump.
9. The test method of claim 6,
in step S200, the method further includes:
and S220, acquiring current value information of the pump.
10. The test method of claim 6,
in step S300, the method further includes:
the qualification criteria for output flows include an upper limit output flow and a lower limit output flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110570837.XA CN115387993A (en) | 2021-05-25 | 2021-05-25 | Device and method for testing fluid characteristics of pump by using gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110570837.XA CN115387993A (en) | 2021-05-25 | 2021-05-25 | Device and method for testing fluid characteristics of pump by using gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115387993A true CN115387993A (en) | 2022-11-25 |
Family
ID=84113690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110570837.XA Pending CN115387993A (en) | 2021-05-25 | 2021-05-25 | Device and method for testing fluid characteristics of pump by using gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115387993A (en) |
-
2021
- 2021-05-25 CN CN202110570837.XA patent/CN115387993A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10345186B2 (en) | Pressure monitor optimization of fluid path utilization | |
| CN101408276B (en) | Flow verification system and flow verification method | |
| CN105606355B (en) | A method of detection aqueous vapor solenoid valve comprehensive performance | |
| CN109540408A (en) | Air tightness detection method and device | |
| CN114962030A (en) | Fuel leakage detection system | |
| CN108120593B (en) | Regulating valve cavitation diagnostic method and its pilot system | |
| CN104101470B (en) | Pipe flange test system | |
| EP1021695A1 (en) | Computerized dispenser tester | |
| CN111024327B (en) | Device and method for air leakage self-checking and air leakage detection of object to be detected | |
| CN115387993A (en) | Device and method for testing fluid characteristics of pump by using gas | |
| US20090178475A1 (en) | Electric fuel pump testing method and apparatus | |
| CN103808474A (en) | Method for checking sealing performance of safety valve | |
| CN113551902B (en) | Decompression valve detection method and system and engine | |
| CN205388531U (en) | Large -scale aqueous vapor solenoid valve detecting system that synthesizes | |
| KR101889294B1 (en) | Method and for testing a performance of gear pump with relief valve | |
| JP2015148612A (en) | Method of inspecting the functions of a device for measuring dynamic fuel consumption | |
| CN111999014A (en) | Molecular pump unit and vacuum system leak detection method | |
| RU2494892C2 (en) | Method and device to check for leaks in fuel vapour recovery system stage ii | |
| CN112051837A (en) | Test method and device for batch controllers | |
| KR20020037923A (en) | The Checking System for Gasoline Engine Injecting Device | |
| JP6999201B1 (en) | Airtightness test method and airtightness test equipment using it | |
| CN108007518A (en) | Oil consumption computing device and method and engineering machinery | |
| KR102482718B1 (en) | Real-time detection system for air pressure loss, apparatus and method therefor | |
| KR20190076087A (en) | Online gas analysis system capable of monitoring abnormal state | |
| JPH11344204A (en) | Boiler system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |