CN217783741U - Multifunctional water pump efficiency online testing device - Google Patents
Multifunctional water pump efficiency online testing device Download PDFInfo
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- CN217783741U CN217783741U CN202222019496.XU CN202222019496U CN217783741U CN 217783741 U CN217783741 U CN 217783741U CN 202222019496 U CN202222019496 U CN 202222019496U CN 217783741 U CN217783741 U CN 217783741U
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- water pump
- efficiency
- converter
- electric energy
- differential pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Abstract
The embodiment of the utility model discloses multi-functional water pump efficiency on-line measuring device, including multi-functional tester, water pump, differential pressure meter, converter, electric energy meter, portable flowmeter, be equipped with valve A and valve B in the pipeline around the water pump respectively, differential pressure meter detects the pressure differential that water pump water inlet and delivery port go out, and multi-functional tester and differential pressure meter, converter, electric energy meter are connected, and the electric energy meter passes through the converter and connects the water pump, and pipeline behind the water pump is located to portable flowmeter. The utility model can obtain parameters of the water pump such as flow, lift, efficiency and the like by monitoring the pressure difference between the front and the back of the water pump, the power of the water pump and the frequency of the frequency converter, and is convenient and reliable; the utility model discloses can the efficiency of direct detection water pump under the different operating condition of different frequencies, diagnose the operation condition of water pump, provide the foundation for the addition and subtraction platform number of water pump and then the control that improves water pump efficiency.
Description
Technical Field
The utility model relates to a water pump test technical field especially relates to a multi-functional water pump efficiency on-line measuring device.
Background
The efficiency of the water pump is an important parameter for measuring the working efficiency of the water pump. In order to keep a good running state of the water pump and reduce energy loss in the water delivery process of the water pump, the efficiency of the water pump needs to be detected, and the unit and other running state parameters are rapidly measured to adjust the energy-saving safe running state of the water pump in due time, so that the water pump efficiency tester has important significance for directing the dynamic maintenance of the water pump unit and realizing the high-efficiency low-consumption safe running of the water pump.
The existing instrument for testing the efficiency of the water pump only considers the efficiency of the water pump under fixed frequency, and the accuracy of a measuring result is not high; and the function is single, can not show efficiency, flow, lift isoparametric simultaneously, needs operating personnel to use multiple instrument manual measurement, then calculates the operating efficiency of delivery pump one by one according to the data that survey. The workload of the efficiency test of the water pump is large and the working efficiency is lower.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem who solves lies in, provides a multi-functional water pump efficiency on-line measuring device to promote the test accuracy degree of current multi-functional tester.
In order to solve the technical problem, the embodiment of the utility model provides a multi-functional water pump efficiency on-line measuring device is proposed, include the multi-functional tester and locate the water pump in the pipeline, still include the differential pressure meter, the converter, the electric energy meter, portable flowmeter, be equipped with valve A and valve B in the pipeline around the water pump respectively, the differential pressure that the differential pressure meter detected water pump water inlet and delivery port play, multi-functional tester and differential pressure meter, the converter, the electric energy meter is connected, the electric energy meter passes through the converter and connects the water pump, portable flowmeter locates pipeline behind the water pump.
Furthermore, an RS-485 communication interface is arranged in the multifunctional tester.
Furthermore, the multifunctional tester is internally provided with a 5G communication module.
The utility model has the advantages that:
(1) The utility model discloses a to pressure differential, water pump power and converter frequency monitoring around the water pump can obtain the flow, lift, efficiency isoparametric of water pump promptly, convenient reliable, probe corrosive wear, the inaccurate unstable problem of monitoring that the probe decreases contact failure and leads to when having solved ordinary flowmeter and using for a long time.
(2) The utility model discloses can the efficiency of direct detection water pump under the different operating condition of different frequencies, diagnose the operation condition of water pump, provide the foundation for the addition and subtraction platform number of water pump and then the control that improves water pump efficiency.
(3) The utility model discloses data information such as flow, lift, power, efficiency of ability instant display water pump to can carry out real-time data transmission through RS-485 signal or 5G's mode, do benefit to monitored control system or monitoring platform and dock these data.
(4) The utility model discloses only use interim portable flowmeter when the debugging, the reuse can be torn open to the interim flowmeter after the debugging, can reduce engineering cost by a wide margin.
(5) The utility model discloses can be according to coefficient a of one of them water pump 0 ,a 1 ,a 2 ,a 3 ,a 4 ,a 5 ,b 0 ,b 1 ,b 2 ,b 3 ,b 4 ,b 5 The water pumps of the same type and manufacturer are set in the same way, so that the debugging workload is reduced.
Drawings
Fig. 1 is the utility model discloses multi-functional water pump efficiency on-line measuring device's schematic structure diagram.
Description of the reference numerals
The device comprises a differential pressure gauge 101, a water pump 102, a mobile flowmeter 103, a frequency converter 104, an electric energy meter 105, a multifunctional tester 106, a valve A201, a valve B202, an RS-485 communication interface 301 and a 5G communication module 302.
Detailed Description
It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict, and the present invention is further described in detail with reference to the accompanying drawings and specific embodiments.
In the embodiment of the present invention, if there is a directional indication (such as upper, lower, left, right, front, and rear … …) only for explaining the relative position relationship between the components and the motion situation under a specific posture (as shown in the drawing), if the specific posture is changed, the directional indication is changed accordingly.
In addition, the descriptions of the first, second, etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Referring to fig. 1, the multifunctional water pump efficiency online testing device according to the embodiment of the present invention includes a water pump 102, a differential pressure gauge 101, a frequency converter 104, an electric energy meter 105, and a mobile flowmeter 103.
Valve a201 and valve B202, and RS-485 communication interface 301 and 5G communication module 302. A front pipeline and a rear pipeline of the water pump 102 are respectively provided with a valve A201 and a valve B202; the rear pipeline of the water pump 102 is connected with a movable flowmeter 103. The water pump 102 is connected with the frequency converter 104 to control the frequency of the water pump; the frequency converter 104 is connected with the electric energy meter 105 and used for reading power data; the differential pressure gauge 101 is connected with front and rear pipelines of the water pump 102 and used for reading the lift of the water pump; the differential pressure meter 101, the frequency converter 104 and the electric energy meter 105 are connected with the multifunctional tester 106 and feed back the read data signals to the multifunctional tester 106, the multifunctional tester 106 is internally provided with an RS-485 communication interface 301 and a 5G communication module 302.
The movable flowmeter 103 is a movable flowmeter for temporary testing, and is only used for measuring the flow of the water pump at the early stage of debugging and calculating the efficiency of the water pump so as to establish a binary quadratic parameter regression equation of the flow, the frequency and the lift according to the parameter relations of the flow, the efficiency of the water pump, the lift and the like. The calculation formula of the water pump efficiency eta is as follows:
η=Q*H*Ƴ/3600/N
wherein Q is the flow, m 3 H; h is the pump head, m; Ƴ is the volume weight of water, kN/m 3 (ii) a N is the read power, kW.
The selected frequency bands of the frequency converter 104 are 50HZ,45HZ,40HZ,35HZ, and 30HZ.
Multifunction tester 106 adjusts valve a201 and valve B202 at different frequency bands to change the operating point of water pump 102.
The utility model discloses an in the multi-functional water pump efficiency on-line measuring device embodiment, multi-functional water pump efficiency on-line measuring device can adopt a current test method, and the implementation step is:
s1, frequency bands of 50HZ,45HZ,40HZ,35HZ and 30HZ are taken, and the operating working condition point of the water pump 102 is changed by adjusting the valve A201 and the valve B202 in different frequency bands f.
S2, calculating the water pump efficiency eta under different working condition points, and counting the data of the flow Q, the lift H and the water pump efficiency eta under different working conditions of different frequency sections f and summarizing the data in a table.
And S3, carrying out data processing on the summarized table, and establishing a binary quadratic parameter regression equation. Wherein the content of the first and second substances,
Q=a 0 +a 1 H+a 2 f+a 3 H*f+a 4 H 2 +a 5 f 2
η=b 0 +b 1 H+b 2 f+b 3 H*f+b 4 H 2 +b 5 f 2
s4, dividing the coefficient a 0 ,a 1 ,a 2 ,a 3 ,a 4 ,a 5 ,b 0 ,b 1 ,b 2 ,b 3 ,b 4 ,b 5 The flow rate and efficiency data can be obtained by inputting the flow rate and efficiency data to the multifunctional tester 106 and utilizing the monitored lift, frequency and power. Based on the above, the running parameters of the water pump such as flow, lift, power and efficiency can be displayed in the multifunctional water pump efficiency online testing device.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a multi-functional water pump efficiency on-line measuring device, include the multi-functional tester and locate the water pump in the pipeline, its characterized in that still includes the differential pressure meter, the converter, the electric energy meter, portable flowmeter, be equipped with valve A and valve B in the pipeline around the water pump respectively, the differential pressure meter detects the pressure differential that water pump water inlet and delivery port go out, multi-functional tester and differential pressure meter, the converter, the electric energy meter is connected, the electric energy meter passes through the converter and connects the water pump, portable flowmeter locates pipeline behind the water pump.
2. The multifunctional water pump efficiency online testing device as recited in claim 1, wherein the multifunctional tester is provided with an RS-485 communication interface.
3. The multifunctional water pump efficiency online testing device as claimed in claim 1, characterized in that a 5G communication module is arranged in the multifunctional tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222019496.XU CN217783741U (en) | 2022-08-02 | 2022-08-02 | Multifunctional water pump efficiency online testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222019496.XU CN217783741U (en) | 2022-08-02 | 2022-08-02 | Multifunctional water pump efficiency online testing device |
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| Publication Number | Publication Date |
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| CN217783741U true CN217783741U (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222019496.XU Active CN217783741U (en) | 2022-08-02 | 2022-08-02 | Multifunctional water pump efficiency online testing device |
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| CN (1) | CN217783741U (en) |
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2022
- 2022-08-02 CN CN202222019496.XU patent/CN217783741U/en active Active
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