CN216573628U - Centrifuge input material constant voltage control system - Google Patents
Centrifuge input material constant voltage control system Download PDFInfo
- Publication number
- CN216573628U CN216573628U CN202122821535.3U CN202122821535U CN216573628U CN 216573628 U CN216573628 U CN 216573628U CN 202122821535 U CN202122821535 U CN 202122821535U CN 216573628 U CN216573628 U CN 216573628U
- Authority
- CN
- China
- Prior art keywords
- material conveying
- centrifuge
- pump
- conveying pipe
- pressure
- 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.)
- Active
Links
Images
Landscapes
- Centrifugal Separators (AREA)
Abstract
The utility model relates to the field of centrifuge control, in particular to a constant pressure control system for centrifuge input materials, which comprises: the centrifugal pump comprises a control device, a material conveying pump, a material conveying pipe and a centrifugal machine, wherein the material conveying pump is communicated with the centrifugal machine through the material conveying pipe, the material conveying pipe is provided with a pressure sensing device, the collecting end of the pressure sensing device is arranged in the material conveying pipe, and the control device is electrically connected with the material conveying pump and the pressure sensing device. The pressure sensing device feeds the pressure in the material conveying pipe back to the control device in real time, and the control device dynamically adjusts the rotating speed of the material conveying pump according to the pressure signal in the material conveying pipe, so that the material conveying pipe is kept at a constant pressure, and the valve core of the proportional control valve and the blades of the centrifugal material conveying pump and the mechanical seal are prevented from being damaged by overpressure.
Description
Technical Field
The utility model relates to the field of control of centrifuges, in particular to a constant-pressure control system for input materials of a centrifuge.
Background
In the fermentation production of fruit wine (or fruit vinegar), when the fruit wine (or fruit vinegar) filters saccharomycetes, a centrifugal machine is often required, and the centrifugal machine is an electrical device independent of a fruit wine (or fruit vinegar) fermentation system and is provided with a control system.
In actual production, a material is conveyed to a centrifugal machine by a material conveying pump, and the centrifugal machine utilizes the opening degree of a proportional control valve to adjust the filtering capacity. The slag discharging operation is needed in the filtering process of the centrifugal machine, the opening degree of the proportional regulating valve is required to be very small, and the centrifugal machine needs materials to have certain pressure for sealing, so that the operation of the material conveying pump cannot be stopped. When the centrifugal machine is in failure and the valve is closed or the opening of the proportional control valve is small, the pressure of the material conveying pump is suppressed, and the pressure in the material conveying pipeline is increased, so that the valve core of the proportional control valve is damaged, and the blades of the centrifugal material conveying pump and the mechanical seal are damaged by overpressure.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention provides a constant pressure control system for a centrifuge input material, which can maintain a constant pressure in a material conveying pipeline, and prevent damage to a valve core of a proportional control valve and damage to blades of a centrifugal material conveying pump and overpressure of a mechanical seal.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a centrifuge input material constant pressure control system comprising: the centrifugal pump comprises a control device, a material conveying pump, a material conveying pipe and a centrifugal machine, wherein the material conveying pump is communicated with the centrifugal machine through the material conveying pipe, the material conveying pipe is provided with a pressure sensing device, the collecting end of the pressure sensing device is arranged in the material conveying pipe, and the control device is electrically connected with the material conveying pump and the pressure sensing device.
Further, the pressure sensing device comprises a pressure transmitter, the pressure transmitter is electrically connected with the control device, and the collecting end of the pressure transmitter is arranged in the material conveying pipe.
Further, the control device comprises a frequency converter, and the frequency converter is electrically connected with the material conveying pump and the pressure transmitter.
Further, the conveying pipeline is provided with a proportion adjusting valve, and the proportion adjusting valve is used for adjusting the material flow input into the centrifugal machine.
Further, centrifuge input material constant voltage control system still contains centrifuge electric cabinet, centrifuge electric cabinet with proportional control valve electric connection.
Further, centrifuge input material constant voltage control system still contains the fruit wine fermentation electricity cabinet, the fruit wine fermentation electricity cabinet with centrifuge electricity cabinet, converter electric connection.
Further, the delivery pump is a centrifugal pump.
The utility model has the beneficial effects that:
the present invention comprises: the centrifugal pump comprises a control device, a pressure sensing device, a material conveying pump, a material conveying pipe and a centrifugal machine, wherein the acquisition end of the pressure sensing device is arranged in the material conveying pipe, and the control device is electrically connected with the material conveying pump and the pressure sensing device. The pressure sensing device feeds back the pressure in the material conveying pipe to the control device in real time, and the control device adjusts the rotating speed of the material conveying pump according to the pressure signal in the material conveying pipe, so that the material conveying pipeline keeps constant pressure, and the valve core of the proportional control valve and the blades of the centrifugal material conveying pump and the overpressure damage of the mechanical seal are prevented.
Drawings
FIG. 1 is a schematic diagram of a centrifuge input material constant pressure control system according to the present invention.
The reference numbers illustrate: 1. a delivery pump; 2. a delivery pipe.
Detailed Description
Referring to fig. 1, the present invention relates to a centrifuge input material constant pressure control system, comprising: the centrifugal pump comprises a control device, a material conveying pump 1, a material conveying pipe 2 and a centrifugal machine, wherein the material conveying pump 1 is communicated with the centrifugal machine through the material conveying pipe 2, the material conveying pipe 2 is provided with a pressure sensing device, a collecting end of the pressure sensing device is arranged in the material conveying pipe 2, and the control device is electrically connected with the material conveying pump 1 and the pressure sensing device;
in the scheme, the pressure sensing device feeds the pressure in the material conveying pipe 2 back to the control device in real time, and the control device dynamically adjusts the rotating speed of the material conveying pump 1 according to the pressure signal in the material conveying pipe 2, so that the pipeline of the material conveying pipe 2 keeps constant pressure, and the valve core of the proportional control valve is prevented from being damaged, and the blades of the centrifugal material conveying pump 1 and the mechanical seal are prevented from being damaged by overpressure.
Further, pressure sensing device includes pressure transmitter, pressure transmitter with controlling means electric connection, pressure transmitter's collection end sets up in conveying pipeline 2.
Pressure transmitters are primarily comprised of a load cell sensor (also known as a pressure sensor), measurement circuitry, and process connections. It can convert the physical pressure parameters of gas, liquid, etc. sensed by the load cell sensor into standard electric signals (such as 4-20 mADC, etc.) for secondary instruments such as indication alarm, recorder, regulator, etc. to measure, indicate and regulate the process. The pressure transmitter is an instrument which receives pressure variable, converts the pressure variable into a standard output signal according to a certain proportion after sensing conversion. The pressure transmitter has the advantages of reliable work, stable performance, few peripheral devices, simple maintenance, small volume, light weight and the like, and is very convenient to install and debug.
Further, the control device is a frequency converter, and the frequency converter is electrically connected with the material conveying pump 1 and the pressure transmitter.
A Variable-frequency Drive (VFD) is a power control device that applies frequency conversion technology and microelectronic technology to control an ac motor by changing the frequency of a working power supply of the motor. The frequency converter mainly comprises a rectifying unit (alternating current to direct current), a filtering unit, an inverting unit (direct current to alternating current), a braking unit, a driving unit, a detection unit micro-processing unit and the like. The frequency converter adjusts the voltage and frequency of an output power supply by switching on and off an internal IGBT, provides the required power supply voltage according to the actual requirement of the motor, and further achieves the purposes of energy saving and speed regulation.
Further, the conveying pipeline 2 is provided with a proportional control valve, and the proportional control valve is used for adjusting the material flow input into the centrifugal machine.
The proportional regulating valve is an electric valve which integrates proportional calculation and integral calculation in the execution process, and the farther the calculated value is away from a set value, the faster the stepping motor acts, and the calculated value is basically a decaying sine waveform. Has the advantages of small volume, high control precision and the like.
Further, centrifuge input material constant voltage control system still contains centrifuge electric cabinet, centrifuge electric cabinet with proportional control valve electric connection, centrifuge electric cabinet can be for proportional control valve, centrifuge power supply.
Further, centrifuge input material constant voltage control system still contains the fruit wine fermentation electricity cabinet, the fruit wine fermentation electricity cabinet with centrifuge electricity cabinet, converter electric connection.
Further, the feed pump 1 is a centrifugal pump, which is a pump for feeding liquid by centrifugal force generated when an impeller rotates. The basic structure of the centrifugal pump is composed of eight parts, which are respectively: the pump comprises an impeller, a pump body, a pump cover, a water retaining ring, a pump shaft, a bearing, a sealing ring and a stuffing box. The centrifugal pump has the advantages of simple structure, few parts, few faults, durability, low maintenance cost, convenient management, reliable work, high-speed operation and the like.
The working principle of the embodiment is as follows:
the pressure transmitter is used for sensing the pressure of fruit wine in the pipeline, 4-20 mA current is output to the frequency converter, the frequency converter controls the motor rotating speed of the centrifugal pump through PID negative feedback, so that the fruit wine can be conveyed to the centrifugal machine at constant pressure, and the damage of a valve core of the proportional control valve caused by the extremely large pressure in the conveying pipe 2 is prevented. The closed-loop automatic control technology at present is based on the concept of feedback to reduce uncertainty, the elements of the feedback theory include three parts, measurement, comparison and execution, the key of measurement is the actual value of the controlled variable, which is compared with the expected value, the deviation is used to correct the response of the system and execute the regulation control
This embodiment can be effectively steady operation on centrifuge, when pressure exceeded PID set pressure value, automatic reduction centrifugal pump rotational speed, reduce 2 internal pressures of conveying pipeline. In the process of filtering the fruit wine yeast, the embodiment effectively solves the problems that the opening of the valve is very small and the pressure is suppressed due to the fact that the centrifugal machine breaks down and the valve is closed or the proportional regulating valve is very small in the delivery pump 1.
The above embodiments are merely illustrative of the preferred embodiments of the present invention, and not restrictive, and various changes and modifications to the technical solutions of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are intended to fall within the scope of the present invention defined by the appended claims.
Claims (7)
1. A centrifuge input material constant pressure control system, comprising: the centrifugal pump comprises a control device, a material conveying pump, a material conveying pipe and a centrifugal machine, wherein the material conveying pump is communicated with the centrifugal machine through the material conveying pipe, the material conveying pipe is provided with a pressure sensing device, the collecting end of the pressure sensing device is arranged in the material conveying pipe, and the control device is electrically connected with the material conveying pump and the pressure sensing device.
2. The centrifuge input material constant pressure control system of claim 1, wherein: the pressure sensing device comprises a pressure transmitter, the pressure transmitter is electrically connected with the control device, and the acquisition end of the pressure transmitter is arranged in the conveying pipe.
3. The centrifuge input material constant pressure control system of claim 2, wherein: the control device comprises a frequency converter, and the frequency converter is electrically connected with the material conveying pump and the pressure transmitter.
4. The centrifuge input material constant pressure control system of claim 3, wherein: the conveying pipeline is provided with a proportion adjusting valve, and the proportion adjusting valve is used for adjusting the material flow input into the centrifugal machine.
5. The centrifuge input material constant pressure control system of claim 4, wherein: still contain centrifuge electricity cabinet, centrifuge electricity cabinet with proportional control valve electric connection.
6. The centrifuge input material constant pressure control system of claim 5, wherein: still contain the fruit wine fermentation electric cabinet, the fruit wine fermentation electric cabinet with centrifuge electric cabinet, converter electric connection.
7. The centrifuge input material constant pressure control system of claim 1, wherein: the delivery pump is a centrifugal pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122821535.3U CN216573628U (en) | 2021-11-16 | 2021-11-16 | Centrifuge input material constant voltage control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122821535.3U CN216573628U (en) | 2021-11-16 | 2021-11-16 | Centrifuge input material constant voltage control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216573628U true CN216573628U (en) | 2022-05-24 |
Family
ID=81647367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122821535.3U Active CN216573628U (en) | 2021-11-16 | 2021-11-16 | Centrifuge input material constant voltage control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216573628U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115338044A (en) * | 2022-10-17 | 2022-11-15 | 苏州星亿机械有限公司 | Horizontal spiral discharge sedimentation centrifuge |
-
2021
- 2021-11-16 CN CN202122821535.3U patent/CN216573628U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115338044A (en) * | 2022-10-17 | 2022-11-15 | 苏州星亿机械有限公司 | Horizontal spiral discharge sedimentation centrifuge |
| CN115338044B (en) * | 2022-10-17 | 2023-01-13 | 苏州星亿机械有限公司 | Horizontal spiral discharge sedimentation centrifuge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216573628U (en) | Centrifuge input material constant voltage control system | |
| CN102866659B (en) | Automatic control system for circulating cooling water | |
| CN108591081A (en) | Centrifugal pump and magneto monitoring of working condition feedback device and its regulation and control method | |
| CN104153425A (en) | Constant-pressure water supply system | |
| CN103701397B (en) | A kind of maglev molecular pump motor control assembly with power fails compensate function | |
| CN208089581U (en) | Centrifugal pump and magneto monitoring of working condition feedback device | |
| CN107359836A (en) | A kind of frequency-variable closed governing system and method based on PLC pid algorithms | |
| CN201903047U (en) | Liquid level regulating device of boiler drum | |
| CN107269466A (en) | A kind of hydraulicdriven wind energy conversion system of feather and its control method | |
| CN108019542B (en) | Turbine type pressure reducing and power generating intelligent pressure reducing valve and control method | |
| CN205333310U (en) | Model turbine testing arrangement based on compressed air constant pressure water supply | |
| CN114198292B (en) | Fracturing pump set control system and control method | |
| CN201771737U (en) | Electricity economization controller capable of leading water pump to run at optimum revolution | |
| CN106685300B (en) | The dynamic compensation method of industry measurement pump special digital frequency-variable controller | |
| CN209539534U (en) | Pump energy saving control device | |
| CN205117755U (en) | Electronic pump variable frequency economizer system that gives of thermal power plant | |
| CN211852130U (en) | Double-ring control system for stable operation of gas extraction pump | |
| CN201916173U (en) | Energy-saving electric drive system of ship cooling water pump | |
| CN112963336B (en) | Control method of water pump | |
| CN205945577U (en) | Frequency conversion energy -saving power generation unit | |
| CN210317411U (en) | Intelligent debugging system for jacking oil | |
| CN108006022A (en) | Control method for the yaw control system of wind-driven generator, wind-driven generator and yaw control system | |
| CN213808311U (en) | Energy-saving servo motor constant delivery pump composite set | |
| CN101363446B (en) | Power-saving device of blower fan water pump | |
| CN203003109U (en) | Die-casting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |