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Air compressor energy-saving controller with constant pressure and dormancy and control method

A controller and air compressor technology, applied in pump control, machine/engine, mechanical equipment, etc., can solve problems such as interval air consumption, equipment wear, pressure fluctuation, etc., and achieve the effect of reducing the number of starts and running time

Inactive Publication Date: 2010-03-17
碳捕集(北京)科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also the following problems: During the use of the air compressor, due to the needs of the production process, process, and tasks, the amount of air consumption is irregular, and there are often intervals of air use, that is, between two air use processes, there is a relatively short period of time. long interval
In actual use, there are the following phenomena: In the case of no one using gas, because the air compressor's gas storage tank, gas pipe, gas control valve, etc. will inevitably have a certain slight air leakage, or pressure fluctuations caused by temperature changes, the pressure value From time to time, it will deviate from the set value, which will cause the frequency converter and air compressor to start frequently and repeatedly, and be in a state of "unsteady sleep", resulting in waste of power and equipment wear

Method used

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  • Air compressor energy-saving controller with constant pressure and dormancy and control method
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  • Air compressor energy-saving controller with constant pressure and dormancy and control method

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Embodiment 1

[0044] This embodiment is an energy-saving controller for an air compressor with constant pressure and dormancy. The schematic diagram of the system structure is shown in figure 1 . The present embodiment comprises: air compressor 4, the pressure transmitter 3 that is installed on the air storage tank of air compressor, pressure transmitter is electrically connected with electric controller 1, the frequency conversion of electric controller and the motor of air compressor Device 2 is electrically connected. The main air pipe 6 of the air compressor is provided with an airflow switch 5, and the airflow switch is electrically connected with the electric controller.

[0045] In this embodiment, according to the user's setting on the electric controller, the air compressor is controlled by the frequency converter to change the speed or run intermittently, so as to provide the user with compressed air at a constant pressure that meets the requirements.

[0046] In this embodiment...

Embodiment 2

[0051] This embodiment is an improvement of the first embodiment, and it is a refinement of the first embodiment about the electric controller. The electric controller described in this embodiment includes: an input terminal current-voltage conversion circuit connected to the pressure transmitter, an airflow signal processing circuit connected to the airflow switch, and a temperature sensor connected to the air compressor head. Temperature signal processing circuit; input current-voltage conversion circuit, airflow signal processing circuit, temperature signal processing circuit connected with single-chip microcomputer, single-chip microcomputer and output voltage-current conversion circuit, control output unit, communication bus, working status indication, fault display unit , keyboard input and digital display unit, power connection.

[0052] The schematic diagram of the system structure principle of the electric controller in this embodiment is as follows: figure 2 Shown,...

Embodiment 3

[0063] This embodiment is an improvement of the second embodiment, and is an improvement of the second embodiment on the pressure transmitter. The pressure transmitter described in this embodiment is one of a thick film pressure transmitter or a ceramic capacitive pressure transmitter.

[0064] The pressure transmitter can use the KYT-P-Y integrated pressure transmitter, which uses a thick film pressure sensor as a pressure sensitive element, and is an online detection device that converts the pressure signal into a standard current (voltage) signal through a processing circuit. , produced by Hefei Rongshida Keyuan Sensing System Engineering Co., Ltd.

[0065] The SIDA-121 rod-shaped ceramic capacitive pressure transmitter produced by Guangzhou Sida Automation Instrument Co., Ltd. and the HM20 general-purpose pressure transmitter produced by Nanjing Hongmu Technology Co., Ltd. can also be used.

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Abstract

The invention relates to an air compressor energy-saving controller with constant pressure and dormancy and a control method. The invention comprises an air compressor and a pressure transmitter whichis arranged on an air storage tank of the air compressor. The pressure transmitter is electrically connected with an electric controller; the electric controller is electrically connected with a frequency converter of a motor of the air compressor; a main gas piping of the air compressor is provided with an air flow switch which is electrically connected with the electric controller. The invention has two pressure set values, namely, standard air pressure and lowest air pressure, which have greater intervals therebetween. In the structure, the air flow switch is arranged on the main gas piping and the electric controller judges whether users are in a gas-using state or not through an air flow switch; if in a gas-using state, then the electric controller provides standard pressure for users; if in a non gas-using state, then the electric controller leads the air compressor to be in a dormant state and keep the minimum air pressure to supply gas for users at any time, thus substantiallyreducing the starting times and operating time of the frequency converter and the air compressor and achieving the purpose of depth energy saving.

Description

technical field [0001] The invention relates to an energy-saving controller and control method for an air compressor with constant pressure and dormancy, which is an electronic control device and a control method, and an energy-saving controller and control method for an air compressor with constant-pressure air supply and intelligent dormancy functions. method. Background technique [0002] Air compressors are widely used in various fields. At present, there are two main types of energy-saving measures: one is simple motor power on-off control or mechanical loading and unloading control. In this type of control mode, when the air pressure reaches the upper limit of the set value, the motor stops or unloads and idles; once the air pressure falls below the lower limit of the set value, the motor starts to run or runs with load. The other is to use a frequency converter to control the operation of the air compressor motor. When the air pressure is lower than the set standard,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/08F04B49/06F04C28/00
Inventor 毛文剑
Owner 碳捕集(北京)科技股份有限公司
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