CN110360087B - Method, device and peristaltic pump for determining safe use duration of peristaltic pump hose - Google Patents

Abstract

The invention relates to a method for determining the safe use duration of a peristaltic pump hose. The number of safe squeezing P, and according to the hardware information of the peristaltic pump, determine the safe rotation number Q of the peristaltic pump shaft; obtain the cumulative number of rotations q of the peristaltic pump motor and the current motor speed V of the peristaltic pump, and calculate the current The remaining use time t at the motor speed V: t=(Q‑q)/V. The embodiment of the present invention can provide the remaining usage time of the elastic hose in real time according to the current speed of the motor of the peristaltic pump during the operation of the peristaltic pump, and give an alarm according to the setting situation, which is convenient for the user to maintain the peristaltic pump and replace the elastic hose.

Description

Method, device and peristaltic pump for determining safe use duration of peristaltic pump hose

technical field

The invention belongs to the technical field of liquid pumps, and in particular relates to a method, a device and a peristaltic pump for determining the safe use duration of a peristaltic pump hose.

Background technique

In the prior art, a peristaltic pump includes a driver, a pump head and a hose. The fluid is isolated in the hose. The rotating roller on the pump head sequentially squeezes the hose to make the hose peristaltic and realize liquid transmission. The peristaltic pump has the characteristics of quick replacement of hose, reversible fluid, dry operation, no pollution, easy cleaning and maintenance, etc. It is widely used in chemical, metallurgy, paper, food, petroleum, pharmaceutical and other industries.

As shown in FIG. 1 , the peristaltic pump includes a driver (not shown), a pump head 101 and an elastic hose 102 . When the peristaltic pump works, the elastic hose 102 is filled with liquid 103, and the roller 104 in the pump head 101 is driven by the driver to rotate through the shaft 108, and the rollers 105 on the periphery of the roller 104 alternately rotate in the hose during the rotation of the roller. The lower part of the pressure block 106 squeezes the elastic hose 102 toward the hose pressure block 106 . When the roller 105 leaves the lower area of the hose pressure block 106 , the roller 105 no longer squeezes the elastic hose 102 , thereby releasing the elastic hose 102 , thereby forming a negative pressure in the elastic hose 102 to pump the liquid 103 .

According to the needs of use, the elastic hose must be able to quickly restore its shape after radial compression, and must have certain wear resistance and pressure bearing capacity. The elastic hoses suitable for different peristaltic pumps have corresponding use time. When the peristaltic pump works for a corresponding time, a more elastic hose is required. Otherwise, the elastic hose may be ruptured, and the liquid will flow out of the hose and flow into the pump head. inside the roller, causing equipment failure and damage.

Since the elastic hose is a consumable item, it can be produced and sold without the peristaltic pump. The safe use time of the current elastic hose for peristaltic pump is usually recommended by the hose manufacturer according to the type and material of the elastic hose and combined with the standard working conditions of the peristaltic pump. The safe use time under the condition of 3 rollers per minute is 36 hours, and the safe use time of elastic hose A under the condition of 300 rpm and 3 rollers is 72 hours. However, in the actual working process of the peristaltic pump, the peristaltic pump does not rotate at a constant speed. For example, it may rotate at a speed of 600 rpm for the first 10 hours, and rotate at another speed in the later time, which leads to Although there is a safe use time of the elastic hose under different working conditions, it is still impossible to accurately determine when the elastic hose on the current peristaltic pump should be used due to the change of working conditions when an elastic hose is used in a peristaltic pump. to replace.

SUMMARY OF THE INVENTION

In order to solve the above technical problem of not being able to grasp the safe use duration of the peristaltic pump elastic hose in real time, the present invention provides a method, device and peristaltic pump for determining the safe use duration of the peristaltic pump hose.

Wherein, the method for determining the safe use duration of the peristaltic pump hose comprises the following steps:

According to the safe use duration of the elastic hose under the standard working conditions and the standard working condition data for determining the safe use duration, the safe extrusion times P of the elastic hose is obtained, and according to the hardware information of the peristaltic pump, the shaft rod of the peristaltic pump is determined The number of safe turns Q;

Obtain the cumulative number of revolutions q of the peristaltic pump motor and the current motor speed V of the peristaltic pump, and calculate the remaining use time t of the elastic hose at the current motor speed V:

t=(Q-q)/V.

Further, the safe extrusion times P of the elastic hose is:

P=n*v*T,

Among them, n is the number of rollers in the pump head of the peristaltic pump under standard conditions, v is the motor speed of the peristaltic pump under standard conditions, and T is the safe use time under standard conditions.

Further, the number of rollers in the pump head of the peristaltic pump is N, and the safe rotation number Q of the shaft of the peristaltic pump is:

Q=P/N.

Further, when the difference between the safe rotation number Q of the peristaltic pump shaft and the cumulative rotation number q of the peristaltic pump motor is less than the first set value, or when the cumulative rotation number q of the peristaltic pump motor is greater than the peristaltic pump shaft. When the rod is safely rotated for the number of turns Q, or when the remaining use time t is less than the second set value, an alarm message is sent; and/or, the remaining use time t of the elastic hose at the current motor speed V is displayed in real time.

The device for determining the safe use duration of the peristaltic pump hose according to the embodiment of the present invention includes a safe rotation number determination module and a remaining use duration calculation module, wherein,

The safe rotation number determination module obtains the safe extrusion times P of the elastic hose according to the safe use duration under the standard working conditions of the elastic hose and the standard working condition data for determining the safe use duration, and according to the hardware information of the peristaltic pump , determine the safe rotation number Q of the shaft of the peristaltic pump;

The remaining use time calculation module obtains the cumulative number of revolutions q of the peristaltic pump motor and the current motor speed V of the peristaltic pump, and calculates the remaining use time t of the elastic hose at the current motor speed V:

t=(Q-q)/V.

Further, the safe extrusion times P of the elastic hose is:

P=n*v*T,

Among them, n is the number of rollers in the pump head of the peristaltic pump under standard conditions, v is the motor speed of the peristaltic pump under standard conditions, and T is the safe use time under standard conditions.

Further, the number of rollers in the pump head of the peristaltic pump is N, and the safe rotation number Q of the shaft of the peristaltic pump is:

Q=P/N.

Further, the device for determining the safe use duration of the peristaltic pump hose also includes an alarm device and/or a display device, wherein,

When the difference between the safe rotation number Q of the peristaltic pump shaft and the cumulative rotation number q of the peristaltic pump motor is smaller than the first set value, or when the cumulative rotation number q of the peristaltic pump motor is greater than the peristaltic pump shaft safety When the number of turns Q, or when the remaining use time t is less than the second set value, the alarm device sends an alarm message;

The display device displays in real time the remaining use time t of the elastic hose at the current motor speed V.

The peristaltic pump of the embodiment of the present invention includes a processing device, an input device, a driving device, a detection device, a motor, and an alarm device and/or a display device, wherein:

The input device for inputting the hardware information of the peristaltic pump and the safe use time under the standard working conditions of the elastic hose is connected to the processing device;

The driving device is connected with the processing device and the motor, and drives the motor to rotate according to the driving signal of the processing device;

The detection device is connected with the processing device and the motor, and detects the cumulative rotation number q of the peristaltic pump motor and the motor speed V of the peristaltic pump;

The processing device obtains the safe extrusion times P of the elastic hose according to the safe use duration of the elastic hose under the standard working conditions and the standard working condition data for determining the safe use duration, and determines according to the hardware information of the peristaltic pump. The safe rotation number Q of the shaft of the peristaltic pump, after calculating the remaining use time t of the elastic hose at the current motor speed V according to the accumulated rotation number q of the peristaltic pump motor and the current motor speed V of the peristaltic pump,

t=(Q-q)/V;

The warning device and/or the display device are connected to the processing device.

Further, the processing device obtains the safe extrusion times of the elastic hose according to the safe use duration T under the standard operating conditions of the elastic hose and the peristaltic pump motor speed v and the number n of the peristaltic pump rollers that determine the safe use duration. P:

P=n*v*T,

And according to the number of rollers N of the pump head, determine the safe rotation number Q of the shaft of the peristaltic pump:

Q=P/N.

Beneficial effects of the present invention: the method, the device and the peristaltic pump for determining the safe use duration of the peristaltic pump hose provided by the embodiments of the present invention. The embodiment of the present invention can provide the remaining usage time of the elastic hose in real time according to the current speed of the motor of the peristaltic pump during the operation of the peristaltic pump, and give an alarm according to the setting situation, which is convenient for the user to maintain the peristaltic pump and replace the elastic hose.

Description of drawings

Fig. 1 is the structural representation of the peristaltic pump in the prior art;

2 is a flowchart of a method for determining the safe use duration of a peristaltic pump hose proposed by an embodiment of the present invention;

3 is a schematic structural diagram of a device for determining the safe use duration of a peristaltic pump hose proposed by an embodiment of the present invention;

4 is a schematic structural diagram of a peristaltic pump proposed in an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. However, those skilled in the art know that the present invention is not limited to the accompanying drawings and the following embodiments.

On the one hand, an embodiment of the present invention provides a method for determining the safe use duration of a peristaltic pump hose, including:

S10: Obtain the hardware information of the peristaltic pump and the safe use time of the elastic hose under standard conditions.

Among them, the safe use time of the elastic hose under the standard working conditions is the hose manufacturer according to the type and material of the elastic hose, combined with the structure and standard working conditions of the peristaltic pump, such as the number of rollers of the peristaltic pump head n, the peristaltic pump head The motor speed v of the pump is given by the experimental test. For example, for a certain type or material of flexible hose A, use a peristaltic pump with 3 rollers for testing, the test speed of the peristaltic pump motor is 600 rpm, and the safe use time T given by the test is 36 hours , then 36 hours is the safe use time T of the peristaltic pump with 3 rollers under the standard working condition of the peristaltic pump motor speed of 600 rpm.

During the use of the peristaltic pump, the use time of the elastic hose is not only related to the type and material of the elastic hose itself, but also to the number of rollers in the pump head of the peristaltic pump. The number of squeezing times is more, and the safe use time is relatively short; the number of rollers is small, the number of times the peristaltic pump motor rotates for one rotation of the elastic hose is less, and the safe use time is relatively long. Therefore, the hardware information of the peristaltic pump acquired in the embodiment of the present invention at least includes the number N of rollers of the pump head of the peristaltic pump.

S20: According to the safe use duration of the elastic hose under the standard working conditions and the standard working condition data for determining the safe use duration T, obtain the safe extrusion times P of the elastic hose, P=n*v*T, that is, The total number of squeezes that the elastic hose can withstand when it is not in use. And according to the hardware information of the peristaltic pump, determine the safe rotation number Q of the shaft of the peristaltic pump.

For example, the safe use time of a specific elastic hose on a peristaltic pump with 3 rollers and a speed of 600 rpm is 36 hours, then in the unused state, the safe number of squeezes P of the elastic hose is :

P=3×600×60×36,

That is, according to the safe use duration T of the elastic hose under standard working conditions, the rotational speed v of the peristaltic pump motor and the number n of peristaltic pump rollers that determine the safe use duration, the safe extrusion times P of the elastic hose is obtained.

Further, in the case that the number of rollers of the peristaltic pump pump head is N, it is determined that the safe rotation number Q of the peristaltic pump shaft is:

Q=P/N.

Those skilled in the art may know that when a new elastic hose is used in the peristaltic pump, the safe rotation number Q of the shaft of the peristaltic pump needs to be re-determined.

S30: Obtain the cumulative number of revolutions q of the peristaltic pump motor and the motor speed V of the peristaltic pump, and calculate the remaining use time t of the elastic hose at the current motor speed V,

t=(Q-q)/V.

S40: When the difference between the safe rotation number Q of the peristaltic pump shaft and the cumulative rotation number q of the peristaltic pump motor is smaller than the first set value, or when the cumulative rotation number q of the peristaltic pump motor is greater than the peristaltic pump shaft When the rod is safely rotated for the number of turns Q, or when the remaining use time t is less than the second set value, an alarm message is sent.

Preferably, in the above method, the remaining usage time t of the elastic hose at the current motor speed V is displayed in real time.

The embodiment of the present invention can provide the remaining usage time of the elastic hose in real time according to the current speed of the motor of the peristaltic pump during the operation of the peristaltic pump, and give an alarm according to the setting situation, which is convenient for the user to maintain the peristaltic pump and replace the elastic hose.

On the other hand, an embodiment of the present invention also provides a device for determining the safe use duration of a peristaltic pump hose, including an information acquisition module, a safe rotation number determination module, a remaining use duration calculation module, and an alarm module.

Information acquisition module: Get the hardware information of the peristaltic pump and the safe use time of the elastic hose under standard conditions.

Among them, the safe use time of the elastic hose under the standard working conditions is the hose manufacturer according to the type and material of the elastic hose, combined with the structure and standard working conditions of the peristaltic pump, such as the number of rollers of the peristaltic pump head n, the peristaltic pump head The motor speed v of the pump is given by the experimental test. For example, for a certain type or material of flexible hose A, use a peristaltic pump with 3 rollers for testing, the test speed of the peristaltic pump motor is 600 rpm, and the safe use time T given by the test is 36 hours , then 36 hours is the safe use time T of the peristaltic pump with 3 rollers under the standard working condition of the peristaltic pump motor speed of 600 rpm.

During the use of the peristaltic pump, the use time of the elastic hose is not only related to the type and material of the elastic hose itself, but also to the number of rollers in the pump head of the peristaltic pump. The number of squeezing times is more, and the safe use time is relatively short; the number of rollers is small, the number of times the peristaltic pump motor rotates for one rotation of the elastic hose is less, and the safe use time is relatively long. Therefore, the hardware information of the peristaltic pump acquired in the embodiment of the present invention at least includes the number N of rollers of the pump head of the peristaltic pump.

The module for determining the number of safe rotation turns: According to the safe use duration of the elastic hose under the standard working conditions and the standard working condition data for determining the safe use duration, the safe extrusion times of the elastic hose are obtained, that is, the elastic hose is not used. In the state, the total number of extrusion times P that can be endured. And according to the hardware information of the peristaltic pump, determine the safe rotation number Q of the shaft of the peristaltic pump.

For example, the safe use time of a specific elastic hose on a peristaltic pump with 3 rollers and a speed of 600 rpm is 36 hours, then in the unused state, the safe number of squeezes P of the elastic hose is :

P=3×600×60×36,

That is, according to the safe use time of the elastic hose under standard working conditions, the rotational speed of the peristaltic pump motor and the number of peristaltic pump rollers that determine the safe use time, the safe extrusion times P of the elastic hose is obtained.

Further, in the case that the number of rollers of the peristaltic pump pump head is N, it is determined that the safe rotation number Q of the peristaltic pump shaft is:

Q=P/N.

Remaining use time calculation module: Obtain the cumulative number of revolutions q of the peristaltic pump motor and the motor speed V of the peristaltic pump, and calculate the remaining use time t of the elastic hose at the current motor speed V,

t=(Q-q)/V.

Alarm module: when the difference between the safe rotation number Q of the peristaltic pump shaft and the cumulative rotation number q of the peristaltic pump motor is less than the first set value, or when the cumulative rotation number q of the peristaltic pump motor is greater than the peristaltic pump When the safe rotation of the shaft is Q, or when the remaining use time t is less than the second set value, an alarm message is sent.

Preferably, the device for determining the safe use duration of the peristaltic pump hose according to the embodiment of the present invention further includes a display module, the display module displays the remaining use duration t of the elastic hose at the current motor speed V in real time.

The embodiment of the present invention can provide the remaining usage time of the elastic hose in real time according to the current speed of the motor of the peristaltic pump during the operation of the peristaltic pump, and give an alarm according to the setting situation, which is convenient for the user to maintain the peristaltic pump and replace the elastic hose.

In another aspect, the present invention provides a peristaltic pump, as shown in FIG. 4 , comprising a processing device, an input device, a driving device, a detection device, a motor, an alarm device and a display device.

The input device for inputting the hardware information of the peristaltic pump and the safe use time under the standard working condition of the elastic hose is connected to the processing device. Wherein, the hardware information of the peristaltic pump at least includes the number N of rollers of the pump head of the peristaltic pump. The safe use time of the elastic hose under standard working conditions is determined by the hose manufacturer according to the type and material of the elastic hose, combined with the structure and standard working conditions of the peristaltic pump, such as the number of rollers n of the peristaltic pump head, the number of rollers of the peristaltic pump The motor speed v is given by the test. The user can input the above-mentioned information into the peristaltic pump through an input device of the peristaltic pump, and the input device can be set locally in the peristaltic pump, or can be a remote terminal, such as a mobile phone.

The driving device is connected with the processing device and the motor, and drives the motor to rotate according to the driving signal of the processing device.

The detection device is connected with the processing device and the motor, and detects the cumulative rotation number q of the peristaltic pump motor and the motor speed V of the peristaltic pump. The detection device detects the movement of the motor through photoelectric signals or magnetic signals, and is installed on the motor output shaft , such as photoelectric encoders, magnetic encoders or Hall switches.

The processing device obtains the safe extrusion times P of the elastic hose according to the safe use duration T of the elastic hose and the peristaltic pump motor speed v and the number n of the peristaltic pump rollers that determine the safe use duration:

P=n*v*T,

And according to the number of rollers N of the pump head, determine the safe rotation number Q of the shaft of the peristaltic pump:

Q=P/N,

Calculate the remaining use time t of the elastic hose at the current motor speed V,

t=(Q-q)/V.

The alarm device is connected with the processing device, and according to the relationship between the remaining use time t of the elastic hose under the current motor speed V or the safe rotation number Q of the peristaltic pump shaft and the cumulative rotation number q of the peristaltic pump motor, send Alarm information. For example, when the difference between the safe rotation number Q of the peristaltic pump shaft and the cumulative rotation number q of the peristaltic pump motor is smaller than the first set value, or when the cumulative rotation number q of the peristaltic pump motor is greater than the peristaltic pump shaft When the rod is safely rotated for the number of turns Q, or when the remaining use time t is less than the second set value, an alarm message is sent.

The display device is connected to the processing device, and the display device shows the remaining use time t of the elastic hose at the current motor speed V, and/or the alarm information sent by the alarm device.

The peristaltic pump of the embodiment of the present invention can give the remaining use time of the elastic hose in real time according to the current speed of the motor of the peristaltic pump during operation, and give an alarm according to the setting situation, which is convenient for users to maintain the peristaltic pump and replace the elastic hose .

The device for determining the safe use time of the peristaltic pump hose according to the embodiment of the present invention can provide the remaining use time of the elastic hose in real time according to the current speed of the peristaltic pump motor during the operation of the peristaltic pump, and give an alarm according to the setting situation, which is convenient for The user performs maintenance on the peristaltic pump and replaces the elastic hose.

The embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above method are implemented.

A computer device includes a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the above method when the program is executed.

Those skilled in the art will appreciate that logic and/or steps represented in flowcharts or otherwise described herein, for example, may be considered an ordered listing of executable instructions for implementing logical functions, may be embodied in in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device), or Used in conjunction with these instruction execution systems, apparatus or devices. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport the program for use by or in connection with an instruction execution system, apparatus, or apparatus.

More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections with one or more wiring (electronic devices), portable computer disk cartridges (magnetic devices), random access memory (RAM), Read Only Memory (ROM), Erasable Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program may be printed, as the paper or other medium may be optically scanned, for example, followed by editing, interpretation, or other suitable medium as necessary process to obtain the program electronically and then store it in computer memory.

It should be understood that various parts of the present invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or a combination of the following techniques known in the art: Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, Programmable Gate Arrays (PGA), Field Programmable Gate Arrays (FPGA), etc.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (7)

1. a determination method of the safe use duration of a peristaltic pump hose, the peristaltic pump hose is an elastic hose, and it is characterized in that, the determination method comprises the steps: According to the safe use duration T of the elastic hose under standard working conditions, the motor speed v of the peristaltic pump under standard working conditions, and the number of rollers n of the peristaltic pump pump head under standard working conditions, the safety of the elastic hose is obtained. Squeeze times P: P=n*v*T; According to the number N of rollers of the pump head of the peristaltic pump, determine the safe rotation number Q of the shaft of the peristaltic pump: Q=P/N; Acquire the cumulative number of revolutions q of the peristaltic pump motor and the current motor speed V of the peristaltic pump, and calculate the remaining use time t of the elastic hose at the current motor speed V: t=(Q-q)/V. 2. The method for determining the safe use duration of the peristaltic pump hose as claimed in claim 1, wherein when the peristaltic pump shaft safely rotates the number of turns Q and the cumulative number of turns q of the peristaltic pump motor When the difference between the two is less than the first set value, or when the cumulative rotation number q of the peristaltic pump motor is greater than the safe rotation number Q of the peristaltic pump shaft, or when the remaining use time t is less than the second set value value, sending alarm information; and/or, displaying in real time the remaining use time t of the elastic hose at the current motor speed V. 3. A determination device for the safe use duration of a peristaltic pump hose, the peristaltic pump hose is an elastic hose, and it is characterized in that, the determination device comprises a safe rotation number determination module and a remaining use duration calculation module, wherein , According to the safe use duration T of the elastic hose under the standard working condition, the motor speed v of the peristaltic pump under the standard working condition, and the number of rollers n of the peristaltic pump pump head under the standard working condition, the safe rotation number determination module obtains the The safe extrusion times of the elastic hose P=n*v*T, according to the number of rollers N of the peristaltic pump pump head, determine the safe rotation number of the peristaltic pump shaft Q=P/N; The remaining use time calculation module obtains the cumulative number of revolutions q of the peristaltic pump motor and the current motor speed V of the peristaltic pump, and calculates the remaining use time t of the elastic hose at the current motor speed V: t=(Q-q)/V. 4. The device for determining the safe use duration of the peristaltic pump hose according to claim 3, wherein the device for determining the safe use duration of the peristaltic pump hose further comprises an alarm device and/or a display device, wherein, When the difference between the safe rotation number Q of the peristaltic pump shaft and the cumulative rotation number q of the peristaltic pump motor is less than the first set value, or when the cumulative rotation number q of the peristaltic pump motor is greater than the During the safe rotation number Q of the shaft of the peristaltic pump, or when the remaining use time t is less than the second set value, the alarm device sends an alarm message; The display device displays in real time the remaining use time t of the elastic hose at the current motor speed V. 5. A peristaltic pump, characterized in that it comprises an elastic hose, a processing device, a driving device, a detection device and a motor, wherein: The driving device is connected with the processing device and the motor, and drives the motor to rotate according to the driving signal of the processing device; The detection device is connected with the processing device and the motor, and detects the cumulative rotation number q of the motor and the motor speed V of the peristaltic pump; The processing device obtains the elastic hose according to the safe use duration T of the elastic hose under the standard working condition, the motor speed v of the peristaltic pump under the standard working condition and the roller number n of the peristaltic pump head under the standard working condition. The safe extrusion times P=n*v*T, according to the number of rollers N of the pump head of the peristaltic pump, determine the safe rotation number of the peristaltic pump shaft Q=P/N, according to the cumulative number of rotations of the motor q and the peristaltic pump the current motor speed V, calculate the remaining use time t of the elastic hose at the current motor speed V, t=(Q-q)/V. 6. The peristaltic pump according to claim 5, wherein the peristaltic pump further comprises an input device for inputting the hardware information of the peristaltic pump and the safe use duration under the standard working condition of the elastic hose, so The input device is connected to the processing device. 7. The peristaltic pump according to claim 5, characterized in that, the peristaltic pump further comprises an alarm device and/or a display device, and the alarm device and/or the display device are connected with the processing device.

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