CN211174554U - Device for measuring pumping flow of mechanical diaphragm metering pump - Google Patents
Device for measuring pumping flow of mechanical diaphragm metering pump Download PDFInfo
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- CN211174554U CN211174554U CN201921468289.4U CN201921468289U CN211174554U CN 211174554 U CN211174554 U CN 211174554U CN 201921468289 U CN201921468289 U CN 201921468289U CN 211174554 U CN211174554 U CN 211174554U
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Abstract
The utility model provides a survey device of mechanical type diaphragm measuring pump pumping flow, include: the vibration detector detects the vibration of the mechanical diaphragm metering pump and converts a received vibration signal into an electric signal, and the vibration detector comprises a vibration meter which is used for distinguishing a characteristic vibration wave of the mechanical diaphragm metering pump so as to avoid detecting the vibration not caused by the mechanical diaphragm metering pump; a counter that receives the electrical signals and counts a number of the received electrical signals. According to the utility model discloses a survey device of mechanical type diaphragm measuring pump pumping flow avoids direct contact to liquid flow to measure, can be applicable to corrosive liquids's flow measurement and control. The material is easy to obtain, the installation is convenient, and the maintenance, the check and the debugging are convenient.
Description
Technical Field
The utility model relates to a flow detection technique particularly relates to a survey device of mechanical type diaphragm measuring pump pumping flow.
Background
During the pipeline transportation process of the metering pump, the flow rate of the liquid is often required to be detected and accumulated, which is an important parameter. However, because the pipe diameter of the pipeline is small, the flowmeter is inconvenient to install, the flow rate is small, some professional measuring instruments can measure the pipe diameter only by ensuring a certain flow type, and when the flow rate in the pipeline is small, the measuring instruments cannot be used. The cost is high due to the adoption of special equipment for measuring the small-caliber flow; meanwhile, in a pipeline for conveying high-corrosivity liquid, a flowmeter in contact with a medium is not easy to directly measure, and construction work such as pipe cutting and the like cannot be stopped, so that flow measurement is difficult to carry out.
Therefore, there is a need for a new device for measuring the pumping flow of a mechanical diaphragm metering pump, which solves the problems of the prior art.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.
The utility model provides a survey device of mechanical type diaphragm measuring pump pumping flow, include:
the vibration detector detects the vibration of the mechanical diaphragm metering pump and converts a received vibration signal into an electric signal, and the vibration detector comprises a vibration meter which is used for distinguishing a characteristic vibration wave of the mechanical diaphragm metering pump so as to avoid detecting the vibration not caused by the mechanical diaphragm metering pump;
a counter that receives the electrical signals and counts a number of the received electrical signals.
Illustratively, the vibration detector is mounted on a pump head of the mechanical diaphragm metering pump.
Illustratively, the vibration detector is mounted on a pump head of the mechanical diaphragm metering pump in a magnetic suction type or an adhesive type.
Illustratively, the counter comprises a high speed counter.
Illustratively, the device also comprises a P L C control system connected with the counter
According to the utility model discloses a survey device of mechanical type diaphragm measuring pump sending flow adopts the vibration detector to detect the vibration of mechanical type diaphragm measuring pump, monitors through the vibration number of times when monitoring mechanical type diaphragm measuring pump conveying liquid to calculate the accumulative flow of the liquid that lets in the pipeline, avoid direct contact to liquid flow to measure, can be applicable to corrosive liquids' flow measurement and control. Meanwhile, the vibration detector and the counter are low in cost, and the measurement cost is reduced. According to the utility model discloses a survey mechanical type diaphragm measuring pump pumping flow's device materials are easy, simple to operate, and the safety of site work personnel has also been guaranteed to the maintenance and check-up debugging of being convenient for.
Drawings
The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles of the invention.
In the drawings:
fig. 1 is a schematic structural diagram of an apparatus for measuring a pumping flow rate of a mechanical diaphragm metering pump according to an embodiment of the present invention.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
In order to provide a thorough understanding of the present invention, a detailed description will be provided in the following description to illustrate the device for measuring the pumping flow rate of the mechanical diaphragm metering pump of the present invention. It is apparent that the practice of the invention is not limited to the specific details familiar to those skilled in the art of flow measurement technology. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.
It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art. In the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same elements are denoted by the same reference numerals, and thus the description thereof will be omitted.
During the pipeline transportation process of the metering pump, the flow rate of the liquid is often required to be detected and accumulated, which is an important parameter. However, because the pipe diameter of the pipeline is small, the flowmeter is inconvenient to install, the flow rate is small, some professional measuring instruments can measure the pipe diameter only by ensuring a certain flow type, and when the flow rate in the pipeline is small, the measuring instruments cannot be used. The cost is high due to the adoption of special equipment for measuring the small-caliber flow; meanwhile, in a pipeline for conveying high-corrosivity liquid, a flowmeter in contact with a medium is not easy to directly measure, and construction work such as pipe cutting and the like cannot be stopped, so that flow measurement work is difficult to carry out.
In order to solve the problems in the prior art, the utility model provides a device of liquid cumulative flow in measurement pipeline, include:
the vibration detector detects the vibration of the mechanical diaphragm metering pump and converts a received vibration signal into an electric signal, and the vibration detector comprises a vibration meter which is used for distinguishing a characteristic vibration wave of the mechanical diaphragm metering pump so as to avoid detecting the vibration not caused by the mechanical diaphragm metering pump;
a counter that receives the electrical signals and counts a number of the received electrical signals.
The device for measuring the pumping flow of the mechanical diaphragm metering pump according to the present invention is schematically illustrated below with reference to fig. 1, wherein fig. 1 is a schematic structural diagram of a device for measuring the pumping flow of the mechanical diaphragm metering pump according to an embodiment of the present invention.
Referring to fig. 1, an apparatus for measuring a cumulative flow rate of a liquid in a pipe according to the present invention includes a vibration detector 102, and a counter 103.
As shown in fig. 1, the vibration detector 102 is mounted on a mechanical diaphragm metering pump 101, and the mechanical diaphragm metering pump 101 is used for pumping the liquid in the liquid supply device 100. The mechanical diaphragm metering pump 101 has a fixed liquid input during one stroke cycle of operation. The liquid supply device 100 may be a pipe through which liquid flows, or may be any device in which liquid is stored.
The metering pump is used as a liquid conveying machine, can meet various strict process flows and the transportation requirements of corrosive liquid due to adjustable flow, and is widely applied to the fields of petroleum, chemical industry and the like. The mechanical diaphragm metering pump realizes the reciprocating motion of the diaphragm through the mechanical stroke of reciprocating to suck and discharge the conveyed liquid into and out of the pump head. At the pump head, the diaphragm sucks in the delivered liquid through the first half of the stroke and discharges the delivered liquid in the second half of the stroke, so that the flow rate of the liquid in each stroke can be controlled by setting the cycle time of the stroke, and in the case that the metering pump sets the operation cycle time of the stroke, the flow rate of the liquid pumped by the mechanical diaphragm metering pump in a single stroke operation cycle can be obtained. The mechanical diaphragm metering pump generates vibration at the pump head for each stroke. Therefore, the utility model discloses, set up the vibration detector on mechanical type diaphragm measuring pump, the number of times of mechanical stroke in the mechanical type diaphragm measuring pump is obtained through the vibration number of times that detects mechanical type diaphragm measuring pump. The flow rate of the liquid pumped by the metering pump in a single stroke operation period is set and determined in the early stage, and the flow rate of the liquid pumped by the mechanical diaphragm metering pump in unit time can be further obtained by obtaining the stroke number of the operation of the mechanical diaphragm metering pump in unit time, wherein the flow rate is the flow rate of the liquid flowing in the pipeline, so that the flow rate is detected.
Specifically, as shown in fig. 1, the vibration detector 102 is mounted on a pump head of the mechanical diaphragm metering pump 101, and after detecting the vibration of the mechanical diaphragm metering pump 101, converts a vibration signal into an electrical signal, and transmits the electrical signal to the counter through the cable 105, and the counter counts the received electrical signal.
For example, the vibration detector may be any device capable of detecting the vibration characteristics of a machine, including the acceleration, velocity, displacement, and sound volume of vibration of a vibration portion, and is generally constituted by an electronic device carrying a sensor. Illustratively, the vibration detector is installed on the pump head of mechanical type diaphragm measuring pump, because the pump head department vibration of mechanical type diaphragm measuring pump is most obvious, install the vibration detector and can obtain the most obvious vibration characteristic on the pump head of mechanical type diaphragm measuring pump to can reduce the error.
Illustratively, the counter is a high speed counter. The high-speed counter has a counting channel with shorter response time than the ordinary counter, and generally counts at KHZ frequency, for example, the precision is 20KHZ and the like. Therefore, the pulse level signal sent by the vibration detector after detecting the vibration of the mechanical diaphragm metering pump can be captured completely.
Illustratively, the installation between the vibration detector and the mechanical diaphragm metering pump adopts a magnetic suction type or an adhesive type. Specifically, when the pump head of mechanical type diaphragm measuring pump was the metal, directly adsorb the vibration detection appearance to the pump head through the form that sets up magnetic adsorption device on, under such setting form, can take off the vibration detection appearance by taking off on the pump head of mechanical type diaphragm measuring pump at any time, need not dangerous operations such as welding or cutting, simple to operate. When the pump head of mechanical type diaphragm measuring pump was nonmetal, can adopt like hot melt adhesive etc. to bond vibration detection appearance and mechanical type diaphragm measuring pump's pump head fixed, also avoided dangerous operation such as welding or cutting, simplify the installation when not influencing measurement.
It should be understood that the mounting of the vibration detector to the pump head of the mechanical diaphragm metering pump is merely exemplary, and those skilled in the art will appreciate that the mounting of the vibration detector to any location where vibration of the mechanical diaphragm metering pump can be detected is suitable for use with the present invention.
In the actual installation process, after the vibration detector 102 is installed on the mechanical diaphragm metering pump 101, the mechanical diaphragm metering pump 101 is started to test whether stable electric pulse signals are output on the vibration detector 102, and if stable electric pulse signals are output, the counter 103 is connected with the vibration detector 102 by a cable.
In one example, because the working environment of the mechanical diaphragm metering pump is often an environment in which multiple devices operate simultaneously, in order to avoid interference of vibration of devices near the mechanical diaphragm metering pump on a vibration detector on the mechanical diaphragm metering pump, the vibration detector is set to be a vibration meter capable of distinguishing characteristic vibration waves of the mechanical diaphragm metering pump, that is, the vibration detector can distinguish characteristic vibration characteristics of the mechanical diaphragm metering pump, so that the vibration detector is prevented from detecting vibration of other devices, and unnecessary errors are generated in a measurement result.
The flow rate of the liquid pumped by the mechanical diaphragm metering pump in a single stroke operation period is determined by arranging the mechanical diaphragm metering pump in the early stage, and the number of the pulse electric signals in unit time detected by the counter can be used for obtaining the number of the operation strokes of the mechanical diaphragm metering pump detected by the unit vibration detector so as to obtain the flow rate of the liquid pumped by the mechanical diaphragm metering pump in unit time.
Illustratively, the step of calculating the cumulative flow rate of liquid in the pipeline over the time period t1 includes:
first, step S1 is executed: the liquid input quantity of the mechanical diaphragm metering pump in a single stroke operation period is obtained as Qr.
This step is usually obtained by direct observation of the operating parameters of the mechanical diaphragm metering pump.
Next, step S2 is executed: the number Rt of strokes run in the mechanical diaphragm metering pump during the time period t1 is obtained.
This step is obtained by counting the pulses read on the counter.
Next, step S3 is executed: the cumulative flow rate Qt of liquid in the line is calculated over a time period t1, where Qt-Qr Rt.
Illustratively, the counter is a counter, whereby the cumulative flow of the liquid can be displayed as a cumulative amount by inputting an equivalent value into the counter.
Illustratively, as shown in fig. 1, the counter 103 is connected to the P L C system 104 by a cable, data of the liquid flow rate can be uploaded to the P L C system by connecting the counter to the P L C system 104, the data can be calculated in the P L C system, and the result calculated by the P L C system can be further displayed by a counter or other display devices, or further, the adjustment of the mechanical diaphragm metering pump can be realized by the P L C system to control the flow rate.
According to the utility model discloses a survey device of mechanical type diaphragm measuring pump sending flow adopts the vibration detector to detect the vibration of mechanical type diaphragm measuring pump, monitors through the vibration number of times when monitoring mechanical type diaphragm measuring pump conveying liquid to calculate the accumulative flow of the liquid that lets in the pipeline, avoid direct contact to liquid flow to measure, can be applicable to corrosive liquids' flow measurement and control. Meanwhile, the vibration detector and the counter are low in cost, and the measurement cost is reduced. According to the utility model discloses a survey mechanical type diaphragm measuring pump pumping flow's device materials are easy, simple to operate, and the safety of site work personnel has also been guaranteed to the maintenance and check-up debugging of being convenient for.
The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A device for measuring the pumping flow of a mechanical diaphragm metering pump, comprising:
the vibration detector detects the vibration of the mechanical diaphragm metering pump and converts a received vibration signal into an electric signal, and the vibration detector comprises a vibration meter which is used for distinguishing a characteristic vibration wave of the mechanical diaphragm metering pump so as to avoid detecting the vibration not caused by the mechanical diaphragm metering pump;
a counter that receives the electrical signals and counts a number of the received electrical signals.
2. The apparatus for measuring a pumping flow rate of a mechanical diaphragm metering pump according to claim 1, wherein the vibration detector is mounted to a pump head of the mechanical diaphragm metering pump.
3. The apparatus for measuring pumping flow rate of a mechanical diaphragm metering pump according to claim 2, wherein the vibration detector is mounted on the pump head of the mechanical diaphragm metering pump by means of magnetic attraction or adhesion.
4. The apparatus for measuring pumping flow of a mechanical diaphragm metering pump of claim 1, wherein said counter comprises a high speed counter.
5. The device for measuring the pumping flow of a mechanical diaphragm metering pump according to claim 1, further comprising a P L C control system connected to the counter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921468289.4U CN211174554U (en) | 2019-09-04 | 2019-09-04 | Device for measuring pumping flow of mechanical diaphragm metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921468289.4U CN211174554U (en) | 2019-09-04 | 2019-09-04 | Device for measuring pumping flow of mechanical diaphragm metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211174554U true CN211174554U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921468289.4U Active CN211174554U (en) | 2019-09-04 | 2019-09-04 | Device for measuring pumping flow of mechanical diaphragm metering pump |
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| Country | Link |
|---|---|
| CN (1) | CN211174554U (en) |
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2019
- 2019-09-04 CN CN201921468289.4U patent/CN211174554U/en active Active
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