Air compressor unit remote time control system

Abstract

The remote time control system of air compressor unit belongs to the technical field of electrical control system, including air compressor electronic control module, the air compressor electronic control module includes main motor M1, circuit protection unit and controller unit; also includes cooling fan power supply circuit and dryer power supply circuit; controller unit pin 22 is a common point, controller unit pin 13 is an opening point, and controller unit pin 14 is a closing point; an air compressor remote opening circuit is set between controller unit pin 22 and pin 13; an air compressor remote closing circuit is set between controller unit pin 22 and pin 14; a synchronous operation circuit is set between controller unit pin 43 and pin 27. This time control system optimizes and improves its related control circuit system while keeping the original usage mode unchanged, realizing remote control and synchronous operation of air compressor, indoor cooling fan and freeze dryer.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical control systems, and in particular relates to a remote time control system for an air compressor unit. Background Art

[0002] The use of compressed air has become so widespread that it is applied to almost every industry. In many industries, compressed air is needed from production and manufacturing to processing and quality inspection, which requires a variety of air compressors. Compressed air needs to pass through pipelines to reach pneumatic equipment and air users during production. Compressed air usually contains impurities such as water, oil, and dust, which come from the air. If it is not processed, it will cause pipeline damage, damage to pneumatic equipment, and contact with products, resulting in a decline in product process. Therefore, it is necessary to configure compressed air purification equipment (also called air compressor post-processing equipment) to purify impurities in compressed air. The air compressor dryer is one of the devices used to remove moisture.

[0003] The air compressor unit consists of an air compressor, an indoor cooling fan and a freeze dryer. Its main function is to remove moisture from the compressed air to maximize the stability of production.

[0004] Our company's original SRC-30SA twin-screw air compressor unit adopted an independent operation and maintenance mode. It was often forgotten to be shut down at noon or at night, which seriously wasted energy and caused wear and tear on the three machines, reducing their lifespan.

[0005] Therefore, it is necessary to optimize the electrical control system of the original air compressor unit to overcome the above shortcomings. Summary of the invention

[0006] In view of the problems existing in the prior art, the object of the present invention is to provide a remote time control system for an air compressor unit.

[0007] The remote time control system of an air compressor unit includes an air compressor electronic control module, which includes a main motor M1, a circuit protection unit and a controller unit; the controller unit is provided with pins 1 to 65, wherein pins 1 to 20 are signal input terminals, pins 21 to 22 are power input terminals, pins 23 to 40 are signal output terminals, and pins 43 to 65 are connection terminals; it also includes a heat dissipation fan power supply circuit and a dryer power supply circuit; the controller unit pin 22 is a common point, the controller unit pin 13 is an opening point, and the controller unit pin 14 is a closing point; an air compressor remote opening circuit is provided between the controller unit pins 22 and 13; an air compressor remote closing circuit is provided between the controller unit pins 22 and 14; and a synchronous operation circuit is provided between the controller unit pins 43 and 27.

[0008] The air compressor remote start circuit includes a first micro-relay J1; contacts 5-3 and 6-4 of the first micro-relay J1 are two pairs of passive normally open contacts; the first micro-relay J1 contact 5-3 and the first micro-relay J1 contact 6-4 are connected in parallel to form an air compressor remote start circuit; one end of the air compressor remote start circuit is connected to the controller unit pin 22, and the other end is connected to the controller unit pin 13.

[0009] The air compressor remote shutdown circuit includes a second micro-relay J2; contacts 5-3 and 6-4 of the second micro-relay J2 are two pairs of passive normally open contacts; the second micro-relay J2 contacts 5-3 and the second micro-relay J2 contacts 6-4 are connected in parallel to form an air compressor remote shutdown circuit; one end of the air compressor remote shutdown circuit is connected to the controller unit pin 22, and the other end is connected to the controller unit pin 14.

[0010] The contacts 7-8 of the first micro-relay J1 are connected in series with the first timing clock SJ1 to form a first branch, and the contacts 7-8 of the second micro-relay J2 are connected in series with the second timing clock SJ2 to form a second branch; the first branch and the second branch are connected in parallel to form a remote timing circuit, and one end of the remote timing circuit is connected to the live wire, and the other end is connected to the neutral wire.

[0011] The synchronous operation circuit includes a fifth AC contactor CJ; the fifth AC contactor CJ is connected in parallel with the first AC contactor KM1 to form a synchronous operation circuit; one end of the synchronous operation circuit is connected to the controller unit pin 43, and the other end is connected to the controller unit pin 27.

[0012] The fifth AC contactor CJ is connected in series to the heat dissipation fan power circuit and the dryer power circuit.

[0013] The heat dissipation fan power supply circuit includes a micro air switch CG and a fifth AC contactor CJ; the micro air switch CG and the fifth AC contactor CJ are connected in series with each other.

[0014] The dryer power supply circuit includes a micro air switch CG and a fifth AC contactor CJ; the micro air switch CG and the fifth AC contactor CJ are connected in series with each other.

[0015] This time control system optimizes and improves the relevant control circuit system while keeping the original usage mode unchanged, realizing the remote control and synchronous operation of the air compressor, indoor cooling fan and freeze dryer, so that the air compressor, indoor cooling fan and freeze dryer can be shut down synchronously at a fixed time, saving energy consumption and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a first circuit diagram of the controller pins of the existing air compressor electronic control module;

[0017] Figure 2 It is a second circuit diagram of the controller pins of the existing air compressor electronic control module;

[0018] Figure 3 This is the circuit diagram of the air compressor remote start circuit;

[0019] Figure 4 This is the circuit diagram of the air compressor remote shutdown circuit;

[0020] Figure 5 It is the remote time control circuit diagram;

[0021] Figure 6 It is the wiring diagram of the time-controlled clock;

[0022] Figure 7 It is the wiring diagram of the micro-relay;

[0023] Figure 8 It is a circuit diagram of a synchronous operation circuit;

[0024] Fig. 9 It is the power supply circuit diagram of the cooling fan;

[0025] Fig.10 It is the power circuit diagram of the dryer;

[0026] Fig.11 It is the circuit diagram of the time-controlled clock power supply. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] The remote time control system of the air compressor unit includes an air compressor electronic control module, a heat dissipation fan power circuit and a dryer power circuit.

[0029] The electric control module of the existing SRC-30SA twin-screw air compressor unit, as described in the Chinese patent document with announcement number CN203204357U and application number 201320117205.9, includes a main motor M1, a circuit protection unit and a controller unit; wherein the main motor M1 is used to provide the mechanical energy required for air compression; the circuit protection unit is connected to the electrical equipment in the electrical system to protect each electrical equipment, such as Figure 1 The AC contactors KM1, KM2, KM3 and KM4, as well as the current transmitter inputs CT1, CT2 and intermediate relays KA1, KA2 connected in series in the circuit, the above AC contactors and intermediate relays protect the electrical equipment and realize the interlocking between the electrical equipment; the controller unit is used to control the operating status of each electrical equipment and process the data information fed back by the electrical equipment. The controller unit adopts the control chip KY02S (B); the above electrical system also includes a dryer connected to the controller unit and controlled by it.

[0030] like Figure 1 , Figure 2 As shown, the controller unit is provided with pins 1 to 65, of which pins 1 to 20 are signal input terminals, pins 21 to 22 are power input terminals, pins 23 to 40 are signal output terminals, and pins 43 to 65 are connection terminals. In the entire electrical system, there are several AC contactors (KM1, KM2, KM3 and KM4) and current transmitter inputs (CT1, CT2) and intermediate relays (KA1, KA2) for protecting electrical equipment in the system and opening and closing the system. The controller unit controls the start, stop, fault, etc. of the dryer and the discharge of cooling water according to the data information of the signal input terminal, and realizes the switching between the automatic state and the manual state of the compressor.

[0031] This solution makes the following optimizations based on the existing air compressor electronic control module.

[0032] like Figure 2 , Figure 3 and Figure 4 As shown, controller unit pin 22 is a common point, controller unit pin 13 is an opening point, and controller unit pin 14 is a closing point; an air compressor remote opening circuit is set between controller unit pin 22 and pin 13; an air compressor remote closing circuit is set between controller unit pin 22 and pin 14; and a synchronous operation circuit is set between controller unit pin 43 and pin 27.

[0033] The air compressor remote start circuit includes a first micro-relay J1; contacts 5-3 and 6-4 of the first micro-relay J1 are two pairs of passive normally open contacts; the first micro-relay J1 contact 5-3 and the first micro-relay J1 contact 6-4 are connected in parallel to form an air compressor remote start circuit; one end of the air compressor remote start circuit is connected to the controller unit pin 22, and the other end is connected to the controller unit pin 13.

[0034] The air compressor remote shutdown circuit includes a second micro-relay J2; contacts 5-3 and 6-4 of the second micro-relay J2 are two pairs of passive normally open contacts; the second micro-relay J2 contacts 5-3 and the second micro-relay J2 contacts 6-4 are connected in parallel to form an air compressor remote shutdown circuit; one end of the air compressor remote shutdown circuit is connected to the controller unit pin 22, and the other end is connected to the controller unit pin 14.

[0035] The parallel connection of the contact 5-3 and the contact 6-4 of the micro-relay is beneficial to reducing the failure of the micro-relay.

[0036] like Figure 5As shown, the contacts 7-8 of the first micro-relay J1 are connected in series with the first timing clock SJ1 to form a first branch, and the contacts 7-8 of the second micro-relay J2 are connected in series with the second timing clock SJ2 to form a second branch; the first branch and the second branch are connected in parallel to form a remote timing circuit, and one end of the remote timing circuit is connected to the live wire, and the other end is connected to the neutral wire.

[0037] Preferably, the model of the time-control clock is KG316T-220v; the model of the first micro-relay J1 and the second micro-relay J2 is HH5P-220v.

[0038] like Figure 6 As shown, the time control clock has 4 lines: NT, L-in, 8-T, 7-out. Figure 7 As shown, the coil of the micro-relay has two lines: 7-out and 8-T.

[0039] The operating principle of the remote time control circuit is as follows:

[0040] When the first time-control clock SJ1 is set to 8:00 a.m. and the air compressor is turned on at 12:30 p.m., during the start-up period, the first micro-relay J1 is energized, the passive normally open contacts 5-3 and 6-4 of the first micro-relay J1 are closed, and the controller unit pin 22 and pin 13 are short-circuited to achieve remote start, and the air compressor is turned on with a delay at this time;

[0041] When the second time-control clock SJ2 is set to 11:30 a.m. and 17:30 p.m. to shut down the air compressor, during the shutdown period, the second micro-relay J2 is energized, the passive normally open contacts 5-3 and 6-4 of the second micro-relay J2 are closed, and the pins 22 and 14 of the controller unit are short-circuited to achieve remote shutdown. At this time, the air compressor is delayed shut down.

[0042] Through the operation of the remote time control circuit, the optimal operating mode of the air compressor unit automatically synchronized with the company's working hours is perfectly achieved.

[0043] The synchronous operation circuit includes a fifth AC contactor CJ; the fifth AC contactor CJ is connected in parallel with the first AC contactor KM1 to form a synchronous operation circuit; one end of the synchronous operation circuit is connected to the controller unit pin 43, and the other end is connected to the controller unit pin 27.

[0044] The fifth AC contactor CJ runs in parallel with the first AC contactor KM1 of the air compressor. The first AC contactor KM1 is the main AC contactor of the existing air compressor electronic control module. The coil voltage of the fifth AC contactor CJ is 220V. When the air compressor is started or shut down, the fifth AC contactor CJ and the first AC contactor KM1 will run synchronously.

[0045] The fifth AC contactor CJ is connected in series with the cooling fan power circuit, the dryer power circuit and the time-controlled clock power circuit. In order to make the air compressor, the indoor cooling fan and the freeze dryer run synchronously, the power supplies of the indoor cooling fan and the freeze dryer are controlled by the fifth AC contactor CJ, and finally the best working mode of three machines in one is realized.

[0046] The heat dissipation fan power supply circuit comprises a micro air switch CG and a fifth AC contactor CJ; the micro air switch CG and the fifth AC contactor CJ are connected in series with each other.

[0047] The dryer power supply circuit comprises a micro air switch CG and a fifth AC contactor CJ; the micro air switch CG and the fifth AC contactor CJ are connected in series with each other.

[0048] The micro air switch CG is a 6A micro air switch CG45N / 1P. By setting the micro air switch CG, it is convenient for employees to operate the air compressor during holidays or overtime. Employees only need to close or open the 6A switch according to the on-site situation to control the start and stop at will, which plays the role of controlling the power supply.

[0049] The above improvements have the following advantages: the company can save nearly 40,000 yuan in energy consumption per year. Note: The three machines are shut down at regular intervals during lunch breaks. The power consumption of the three machines is about 33KW, and the electricity fee is 1 yuan / kWh. The lunch break time from May to September is 11:30-13:00, which can directly save energy consumption: 1 yuan*1h*33kw*26 days*5 months=4290 yuan; the lunch break time from October to April is 11:30-12:30, which can directly save energy consumption: 1 yuan*1h*33kw*26 days*7 months=6006 yuan. If you forget to shut down the machine for 5 days / month in a year, the energy wasted will be: 1 yuan*1h*33kw*15 hours*5 days 12 months=29700 yuan. The total electricity saved in a year is: 4290+6006+29700=39996 yuan, and the service life of the three machines is directly extended.

[0050] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application. Obviously, those skilled in the art may make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A remote time control system for an air compressor unit, comprising an air compressor electronic control module, wherein the air compressor electronic control module comprises a main motor M1, a circuit protection unit and a controller unit; the controller unit is provided with pins 1 to 65, wherein pins 1 to 20 are signal input terminals, pins 21 to 22 are power input terminals, pins 23 to 40 are signal output terminals, and pins 43 to 65 are connection terminals; the characteristics are as follows: It also includes a heat dissipation fan power supply circuit and a dryer power supply circuit; the controller unit pin 22 is a common point, the controller unit pin 13 is an opening point, and the controller unit pin 14 is a closing point; an air compressor remote opening circuit is set between the controller unit pin 22 and the pin 13; an air compressor remote closing circuit is set between the controller unit pin 22 and the pin 14; a synchronous operation circuit is set between the controller unit pin 43 and the pin 27; The air compressor remote start circuit includes a first micro relay J1; Contacts 5-3 and 6-4 of the first micro-relay J1 are two pairs of passive normally open contacts; The first micro-relay J1 contact 5-3 and the first micro-relay J1 contact 6-4 are connected in parallel to form an air compressor remote start circuit; one end of the air compressor remote start circuit is connected to the controller unit pin 22, and the other end is connected to the controller unit pin 13; The air compressor remote shutdown circuit includes a second micro relay J2; The contacts 5-3 and 6-4 of the second micro-relay J2 are two pairs of passive normally open contacts; The second micro-relay J2 contact 5-3 and the second micro-relay J2 contact 6-4 are connected in parallel to form an air compressor remote shutdown circuit; one end of the air compressor remote shutdown circuit is connected to the controller unit pin 22, and the other end is connected to the controller unit pin 14; The contacts 7-8 of the first micro-relay J1 are connected in series with the first time-control clock SJ1 to form a first branch, and the contacts 7-8 of the second micro-relay J2 are connected in series with the second time-control clock SJ2 to form a second branch; the first branch and the second branch are connected in parallel to form a remote time-control circuit, and one end of the remote time-control circuit is connected to the live wire and the other end is connected to the neutral wire; When the first time-control clock SJ1 is set to 8:00 a.m. and the air compressor is turned on at 12:30 p.m., during the start-up period, the first micro-relay J1 is energized, the passive normally open contacts 5-3 and 6-4 of the first micro-relay J1 are closed, and the controller unit pin 22 and pin 13 are short-circuited to achieve remote start, and the air compressor is turned on with a delay at this time; When the second time-control clock SJ2 is set to 11:30 am and 17:30 pm to shut down the air compressor, during the shutdown period, the second micro-relay J2 is energized, the passive normally open contacts 5-3 and 6-4 of the second micro-relay J2 are closed, and the pins 22 and 14 of the controller unit are short-circuited to achieve remote shutdown. At this time, the air compressor is delayed to shut down; The synchronous operation circuit includes a fifth AC contactor CJ; the fifth AC contactor CJ is connected in parallel with the first AC contactor KM1 to form a synchronous operation circuit; one end of the synchronous operation circuit is connected to the controller unit pin 43, and the other end is connected to the controller unit pin 27; The fifth AC contactor CJ is connected in series to the cooling fan power circuit and the dryer power circuit; The heat dissipation fan power supply circuit includes a micro air switch CG and a fifth AC contactor CJ; the micro air switch CG and the fifth AC contactor CJ are connected in series with each other; The dryer power supply circuit includes a micro air switch CG and a fifth AC contactor CJ; the micro air switch CG and the fifth AC contactor CJ are connected in series with each other.

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