CN212298534U

CN212298534U - Full-automatic compressed air supply system

Info

Publication number: CN212298534U
Application number: CN202021263906.XU
Authority: CN
Inventors: 马骞; 罗媛媛; 金婷; 高蒙; 邵靖
Original assignee: Chengdu Yingpaier New Energy Technology Co ltd
Current assignee: Chengdu Yingpaier New Energy Technology Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-01-05
Anticipated expiration: 2030-07-02

Abstract

The utility model discloses a full automatization compressed air supply system, include air compressor machine, filter, desicator, first gas holder, two pressure transmitter, controller and establish ties through the mutual series connection of trachea and be in second gas holder on the trachea, two pressure transmitter installs respectively first gas holder with on the second gas holder, two pressure transmitter's signal output part respectively with the signal input part of controller connects, the control signal input part of air compressor machine with the control signal output part of controller corresponds and connects. The utility model discloses not only can provide more sufficient air supply when having a power failure or the interim trouble of air compressor machine, can monitor gas holder atmospheric pressure and air compressor machine at any time when having the electricity moreover, ensure that two gas holders are full of high-pressure gas at arbitrary moment, and realized automated control completely, do not rely on operating personnel, labour saving and time saving, convenient high efficiency.

Description

Full-automatic compressed air supply system

Technical Field

The utility model relates to a compressed air supply system especially relates to a full automatization compressed air supply system.

Background

Compressed air, namely high-pressure air, is widely applied in industry, and for occasions with low requirements, only an air compressor is needed to generate compressed air and convey the compressed air to relevant equipment, such as compressed air for sewage treatment and aeration; for the occasion with higher requirements, the compressed air generated by the air compressor needs to be filtered and dried before being delivered to relevant equipment, such as compressed air for industrial instruments or compressed air for pneumatic actuators.

The system that provides compressed air specially becomes compressed air supply system, and in requiring higher application, traditional compressed air supply system is including the air compressor machine, check valve, filter, desicator and the gas holder that connect gradually, and wherein the gas holder only has one, and opening of air compressor machine stops control for manual control, perhaps adopts electric control but does not have atmospheric pressure detection part, can not form full automatic control system, so has following defect: if power failure or air compressor failure occurs, compressed air in one air storage tank can be used up quickly, and on-site air source supply is not guaranteed, so that the industrial operation progress is influenced; under the electrified condition, the air compressor is started and stopped relatively frequently, and the air compressor is required to be manually operated to start and stop, so that time and labor are wasted, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a more sufficient and full automatic control's of ability full automated automation compressed air supply system of air supply in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a full automatization compressed air supply system, includes air compressor machine, filter, desicator and the first gas holder through the mutual series connection of trachea, still includes two pressure transmitter, controller and establishes ties second gas holder on the trachea, two pressure transmitter installs respectively first gas holder with on the second gas holder, two pressure transmitter's signal output part respectively with the signal input part of controller connects, the control signal input part of air compressor machine with the control signal output part of controller corresponds and connects.

Further, in order to facilitate pollution discharge and realize more optimized automatic control effect by combining pollution discharge and air compressor start-stop control, the full-automatic compressed air supply system further comprises a plurality of pollution discharge electromagnetic valves, the bottom of the filter, the bottom of the first air storage tank and the bottom of the second air storage tank are respectively provided with the pollution discharge electromagnetic valves for discharging pollution from the bottom, and the control signal input ends of the plurality of pollution discharge electromagnetic valves are correspondingly connected with the control signal output end of the controller.

Preferably, in order to achieve better filtering and drying effects, the filters are two and are connected in series with each other; the dryer is characterized in that the two dryers are connected in parallel, the inlets of the two dryers are respectively connected with two outlets of a four-way valve, the bottom outlet of the four-way valve is provided with the blow-down electromagnetic valve, and the control signal input end of the blow-down electromagnetic valve is correspondingly connected with the control signal output end of the controller.

Preferably, in order to achieve better control effect, the controller is a PLC.

Specifically, an outlet of the air compressor is connected with an inlet of a first filter, an outlet of the first filter is connected with an inlet of a first air storage tank after being connected with a second filter in series, an outlet of the first air storage tank is connected with an inlet of the dryer, an outlet of the dryer is connected with an inlet of a second air storage tank, and an air outlet pipe of the second air storage tank is an air outlet pipe of the full-automatic compressed air supply system.

The beneficial effects of the utility model reside in that:

the utility model discloses an increase a gas holder and increase pressure transmitter and controller, not only can provide more sufficient air supply when having a power failure or air compressor machine temporary failure, can monitor gas holder atmospheric pressure and air compressor machine at any time when having the electricity moreover, guarantee that two gas holders are full of high-pressure gas at arbitrary moment, and realized automated control completely, do not rely on operating personnel, labour saving and time saving, convenient high efficiency; through setting up a plurality of blowdown solenoid valves by controller control, the control that opens and stops of normal interval blowdown operation and air compressor machine combines together, can guarantee normally blowdown and the number of times that opens and stops of minimizing the air compressor machine to realize full automatic control, both showing and improving the operating efficiency, protected the air compressor machine again, prolonged the air compressor machine life-span, keep the air supply of two gas holders sufficient at any time moreover, provide the abundant guarantee to on-the-spot air supply.

Drawings

FIG. 1 is a block diagram of the fully automatic compressed air supply system of the present invention;

fig. 2 is a perspective view of the fully automatic compressed air supply system of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1 and 2, the fully automatic compressed air supply system of the present invention comprises an air compressor 1, five check valves 2, two filters 3, five blow-off solenoid valves 4, two ball valves 6, two safety valves 7, a four-way valve 10, two dryers 9, a first air tank 8, a second air tank 12, two pressure transmitters 5 and a controller (not shown in the figure) connected in series with each other through an air pipe, wherein an outlet of the air compressor 1 is connected with an inlet of the first filter 3, an outlet of the first filter 3 is connected with an inlet of the first air tank 8 after being connected in series with the second filter 3, an outlet of the first air tank 8 is connected with an inlet of the four-way valve 10, an outlet of the four-way valve 10 is simultaneously connected with inlets of the two dryers 9, outlets of the two dryers are connected with each other after being connected in series with one check valve 2 respectively and then connected in series with an inlet of the, a needle valve 11 is connected between the outlets of the two driers, an air outlet pipe 13 of a second air storage tank 12 is an air outlet pipe of the full-automatic compressed air supply system, a check valve 2 is arranged on the air outlet pipe 13, a blowdown electromagnetic valve 4 for blowdown from the bottom is respectively arranged at the bottom of the two filters 3, the bottom of the first air storage tank 8, the lower outlet of the four-way valve 10 and the bottom of the second air storage tank 12, two pressure transmitters 5 are respectively connected with two ball valves 6 in series and then are arranged on the first air storage tank 8 and the second air storage tank 12, a safety valve 7 is respectively arranged on the first air storage tank 8 and the second air storage tank 12, the signal output ends of the two pressure transmitters 5 are respectively connected with the signal input end of the controller, the control signal input end of the air compressor 1 and the control signal input ends of the five blowdown electromagnetic valves, the controller is preferably a PLC, i.e. programmable logic controller.

Figure 2 also shows a system base 14 to collectively mount the components together and an explosion proof junction box 15 to serve as a local electrical cabinet, which are conventional in construction.

As shown in fig. 1 and fig. 2, the basic working principle of the fully automatic compressed air supply system of the present invention is: high-pressure gas generated by an air compressor 1 is firstly filtered by two filters 3, then enters a first gas storage tank 8 for temporary storage, continues to flow to downstream equipment after the gas in the first gas storage tank 8 reaches a certain pressure, is divided into two paths by a four-way valve 10, is respectively dried by a dryer 9 and then is collected into a second gas storage tank 12, and an air outlet pipe 13 of the second gas storage tank 12 is connected with relevant equipment such as industrial instrument cleaning equipment or a pneumatic actuator and the like to provide stable, clean and dry high-pressure gas; in the using process, the two pressure transmitters 5 detect the air pressure of the first air storage tank 8 and the second air storage tank 12 at any time and send detection information to the controller, and the controller correspondingly controls the air compressor 1 and the five blow-down electromagnetic valves 4 according to the air pressure information so as to achieve a more optimized air supply effect.

The following description will be made of a more specific operation principle by taking a preferred control method of the present invention as an example, but the following method is not the only control method of the present invention and is not the object of the present invention.

With reference to fig. 1 and 2, the preferred control method of the fully automatic compressed air supply system of the present invention comprises the following steps:

step 1, starting a system, and starting an air compressor 1;

step 2, the two pressure transmitters 5 respectively detect the actual air pressures of the two first air storage tanks 8 and the two second air storage tanks 12 and send detection signals to the controller, the controller receives the actual air pressure information of the first air storage tanks 8 and the actual air pressure information of the second air storage tanks 12 and then respectively compares the actual air pressures with the preset maximum air pressure values of the corresponding air storage tanks (in general conditions, the preset maximum air pressure values of the first air storage tanks 8 and the second air storage tanks 12 are the same, and specific numerical values are determined according to actual requirements), and as long as the actual air pressure of one air storage tank is smaller than the corresponding preset maximum air pressure value, the controller controls the air compressor 1 to keep running; if the actual air pressures of the first air storage tank 8 and the second air storage tank 12 reach the corresponding preset maximum air pressure values, turning to the step 3;

step 3, the controller inquires opening records of all the pollution discharge electromagnetic valves 4, if any one pollution discharge electromagnetic valve 4 is not opened once, the controller directly controls the corresponding pollution discharge electromagnetic valve 4 to be opened for pollution discharge, and closes the pollution discharge electromagnetic valve 4 after the preset pollution discharge time is reached, and meanwhile, the controller utilizes a timer to time the pollution discharge end time of the pollution discharge electromagnetic valve 4; if all the blow-down electromagnetic valves 4 are opened, the controller judges whether the actual time interval from the end of the last blow-down to the current time is equal to or greater than the preset blow-down time interval (the time interval is determined according to actual needs) or not for all the blow-down electromagnetic valves 4, if so, the controller directly controls the corresponding blow-down electromagnetic valves 4 to be opened for blow-down, closes the blow-down electromagnetic valves 4 after the preset blow-down time is reached, and simultaneously, the controller utilizes the timer to time the end time of the blow-down electromagnetic valves 4; if not, go to step 4;

step 4, the controller receives the actual air pressure information of the first air storage tank 8 and the second air storage tank 12 again, and compares the actual air pressure information with the preset maximum air pressure values of the corresponding air storage tanks respectively, and as long as the actual air pressure of one air storage tank is smaller than the corresponding preset maximum air pressure value, the controller controls the air compressor 1 to keep running; if the actual air pressures of the first air storage tank 8 and the second air storage tank 12 reach the corresponding preset maximum air pressure values, the controller controls the air compressor 1 to stop running;

step 5, the two pressure transmitters 5 respectively detect the actual air pressures of the first air storage tank 8 and the second air storage tank 12 and send detection signals to the controller, the controller respectively compares the actual air pressures of the first air storage tank 8 and the second air storage tank 12 with preset minimum air pressure values of corresponding air storage tanks, and the controller controls the air compressor 1 to start and keep running as long as the actual air pressure of one air storage tank is smaller than the corresponding preset minimum air pressure value;

and 6, repeating the steps 2 to 5 until the system finishes the gas supply operation.

According to the optimal control method, whether the air pressure of the first air storage tank 8 and the air pressure of the second air storage tank 12 reach the upper limit or not is judged firstly, whether the requirement of normal pollution discharge exists or not is judged later, and finally the air compressor 1 is closed under the condition that the air pressure of the first air storage tank 8 and the air pressure of the second air storage tank 12 both reach the upper limit and normal pollution discharge operation is completed, the number of starting and stopping times of the air compressor 1 is reduced as much as possible while normal pollution discharge is ensured, full-automatic control is achieved, the operation efficiency is remarkably improved, the air compressor 1 is protected, the service life of the air compressor 1 is prolonged, in addition, the air sources of the first air storage tank 8 and the second air storage tank 12 are kept sufficient at any.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.

Claims

1. The utility model provides a full automatization compressed air supply system, includes air compressor machine, filter, desicator and the first gas holder through the mutual series connection of trachea, its characterized in that: still include two pressure transmitter, controller and establish ties second gas holder on the trachea, two pressure transmitter installs respectively first gas holder with on the second gas holder, two pressure transmitter's signal output part respectively with the signal input part of controller connects, the control signal input part of air compressor machine with the control signal output part of controller corresponds the connection.

2. The fully automated compressed air supply system of claim 1, wherein: the full-automatic compressed air supply system further comprises a plurality of blowdown electromagnetic valves, the blowdown electromagnetic valves used for blowdown from the bottom are respectively installed at the bottom of the filter, the bottom of the first air storage tank and the bottom of the second air storage tank, and the control signal input ends of the blowdown electromagnetic valves are correspondingly connected with the control signal output end of the controller.

3. The fully automated compressed air supply system of claim 2, wherein: the two filters are connected in series; the dryer is characterized in that the two dryers are connected in parallel, the inlets of the two dryers are respectively connected with two outlets of a four-way valve, the bottom outlet of the four-way valve is provided with the blow-down electromagnetic valve, and the control signal input end of the blow-down electromagnetic valve is correspondingly connected with the control signal output end of the controller.

4. The fully automated compressed air supply system of claim 3, wherein: the controller is a PLC.

5. The fully automated compressed air supply system of claim 3, wherein: the outlet of the air compressor is connected with the inlet of the first filter, the outlet of the first filter is connected with the inlet of the first air storage tank after being connected with the second filter in series, the outlet of the first air storage tank is connected with the inlet of the dryer, the outlet of the dryer is connected with the inlet of the second air storage tank, and the air outlet pipe of the second air storage tank is the air outlet pipe of the full-automatic compressed air supply system.