TWI568977B - Automatic drainage control device for air-pressure system - Google Patents

Description

Automatic drainage control device for air compressor system

The invention relates to a pneumatic system, and in particular to an automatic drainage control device for an air pressure system.

Air compressor systems (such as dairy and brewing process gas, medical gas and breathing gas, packaging and instrumentation gas, semiconductor electronics manufacturing gas, etc.) include an air extraction device, which is attached to the machine and used a compressed air filter for filtering solid impurities, oil or moisture in compressed air, and an automatic drain control device connected to the compressed air filter for storing and discharging liquid, and the automatic drainage control The power supply required for storing liquids, detecting the level of the liquid water level, and discharging the liquid, and the solenoid valve for controlling the liquid discharged from the automatic drainer are all using alternating current, and therefore, in actual use, The following defects.

First, the cost is high. When the power supply of the automatic drainer and the solenoid valve is alternating current, since the alternating current is not easily stored and cannot be arbitrarily moved, the alternating current supply is fixed at a specific place, so that the automatic drainer and the solenoid valve must be at a certain distance. Wiring can only achieve AC power, thus highlighting the high cost of defects, especially when the air compressor system is used in large plants, the required wire cost is bound to increase greatly.

Second, it is inconvenient to use. When the automatic drainer and the solenoid valve are supplied with electricity During galvanic flow, wiring between the automatic drainer and the solenoid valve and the AC supply is required. Once the wiring operation is completed, the air compressor system can only move within the length of the wire, highlighting the inconvenience of use.

Third, the security is insufficient. When the power supply of the automatic drainer and the solenoid valve is alternating current, wiring between the automatic drainer and the electromagnetic valve and the alternating current supply is required. Once the wiring operation is completed, if the added wire is improperly insulated, it is easy to generate. Public security issues.

Accordingly, how to develop an automatic drainage control device for a pneumatic system can solve the above-mentioned drawbacks, that is, the motivation of the present invention.

It is an object of the present invention to provide an automatic drain control device for an air compressor system, which mainly uses DC power for the automatic drain control device to reduce cost, improve ease of use, and improve safety in use.

In order to achieve the foregoing objective, an automatic drain control device for an air compressor system according to the present invention includes: a DC power supply unit having a carrier, at least one dry battery provided on the carrier and providing DC power, and an electric battery a direct current connection of the dry battery; an automatic drainer having a drain outlet, and a water level sensing portion electrically connected to the DC electrical connection portion and sensing the internal water level of the automatic drainer; a DC solenoid valve having An inlet valve port connected to the drain outlet, a water outlet valve port, and an electromagnetic control electrically connected to the DC power connection portion and driven by the water level sensing portion to control whether the water inlet valve port and the water outlet valve port are connected or not unit.

Preferably, the DC electrical connection of the DC power supply unit is a terminal block.

Preferably, the DC solenoid valve is a self-holding solenoid valve. When the electromagnetic control unit is driven by the water level sensing unit, the water inlet valve port is controlled to communicate with the water outlet valve port. When the electromagnetic control unit is not protected by the When the water level sensing unit is driven, the water inlet valve port and the water outlet valve port are controlled to be disconnected.

Preferably, the DC solenoid valve is disposed in the carrier of the DC power supply unit, and The inlet valve port and the outlet valve port of the DC solenoid valve are exposed to the carrier.

Preferably, the carrier has a first space and a second space. The first space is accommodated by the DC solenoid valve and the DC electrical connection, and the second space is for receiving the dry battery.

The present invention has been described with reference to the preferred embodiments of the present invention in accordance with the accompanying drawings.

10‧‧‧DC supply unit

11‧‧‧ Carrier

111‧‧‧First space

112‧‧‧Second space

113, 114, 115‧‧‧ components

12‧‧‧ dry battery

121‧‧‧ positive

122‧‧‧negative

13‧‧‧DC electrical connection

14‧‧‧Wire

20‧‧‧Automatic drainer

21‧‧‧Drainage exit

22‧‧‧Water level sensing department

23‧‧‧Drainage entrance

24‧‧‧Wire

30‧‧‧DC solenoid valve

31‧‧‧ Inlet valve port

32‧‧‧Water outlet valve

33‧‧‧Electromagnetic Control Department

34‧‧‧Wire

40‧‧‧Compressed air filter

Fig. 1 is a block diagram showing the configuration of a first embodiment of the present invention.

Fig. 2 is a perspective view showing the first embodiment of the present invention, showing a state in which the automatic drain control device is connected to the compressed air filter.

Figure 3 is a side view of a first embodiment of the present invention.

Figure 4 is a side elevational view of another perspective of the first embodiment of the present invention.

5 is a perspective exploded view of a second embodiment of the present invention, the display carrier has a first space and a second space, and the first space is accommodated by the DC solenoid valve and the DC electrical connection, the second space The state in which the dry battery is housed.

Referring to Figures 1 to 4, an automatic drain control device for a pneumatic system according to a first embodiment of the present invention is mainly composed of a DC power supply unit 10, an automatic drain 20, and a DC valve 30. The DC power supply unit 10 has a carrier 11, a dry battery 12 disposed on the carrier 11 and providing direct current, and a DC power connection 13 electrically connected to the dry battery 12. In this embodiment, each of the DC power supply units The dry batteries 12 are in series, and each dry battery 12 has a voltage of 1.5 volts (V), which is straight The current and electrical connection portion 13 is a terminal block, and the positive electrode 121 and the negative electrode 122 of the dry battery 12 are connected to the DC electrical connection portion 13 through a wire 14.

The automatic drainer 20 has a drain outlet 21 and a water level sensing portion 22 electrically connected to the DC power connecting portion 13 and sensing the water level inside the automatic drainer 20; in the embodiment, the automatic drainer 20 Further, there is a drain inlet 23 connected to the compressed air filter 40 for the compressed air filter 40 to filter the water in the compressed air into the automatic drainer 20; in addition, the water level sensing portion 22 is provided by the wire 24 is electrically connected to the DC electrical connection portion 13.

The DC solenoid valve 30 has a water inlet valve port 31 that communicates with the drain outlet 21, a water outlet valve port 32, and is electrically connected to the DC power connection portion 13 and is driven by the water level sensing portion 22 to control the water inlet. In the embodiment, the DC solenoid valve 30 is a self-holding solenoid valve. When the electromagnetic control unit 33 is driven by the water level sensing unit 22, the electromagnetic control unit 33 is connected to the water outlet valve 32. Controlling the water inlet valve port 31 to communicate with the water outlet valve port 32, and when the electromagnetic control portion 33 is not driven by the water level sensing portion 22, the water inlet valve port 31 and the water outlet valve port 32 are controlled to be disconnected; The electromagnetic control unit 33 is electrically connected to the DC electrical connection portion 13 via a wire 34.

The above is the structure and configuration description of each main component of the first embodiment of the present invention. As for the efficacy of the first embodiment of the present invention, the following description will be made.

First, the cost is low. Since the DC power supply unit 10 is provided in the present invention, and the power supply of the automatic drainer 20 and the DC solenoid valve 30 is set to DC power, the DC power supply unit 10 can be disposed in the automatic drainer 20, and the compressed air filter The device 40, or the vicinity of the automatic drainer 20 and the compressed air filter 40, does not require a large distance wiring operation to obtain power supply, and thus has a low cost effect, whether when the air compressor system is used in a large When the plant or small plant is used, the required wire cost is not only consistent but also low.

Second, it is convenient to use. Since the DC power supply unit 10 is provided in the present invention, and the power supply of the automatic drainer 20 and the DC solenoid valve 30 is set to DC power, the DC power supply unit 10 can be disposed in the automatic drainer 20, and the compressed air filter The device 40, or the vicinity of the automatic drainer 20 and the compressed air filter 40, can be displaced as the automatic drainer 20 and the compressed air filter 40 move, so that the automatic drainer 20 and the direct current solenoid valve 30 are The DC power supply unit 10 can be arbitrarily moved once the wiring operation is completed, without being limited by the length of the wire, thereby improving the convenience in use.

Third, the security is better. Since the DC power supply unit 10 is provided in the present invention, and the power supply of the automatic drainer 20 and the DC solenoid valve 30 is set to DC power, the DC power supply unit 10 can be disposed in the automatic drainer 20, and the compressed air filter The device 40, or the vicinity of the automatic drainer 20 and the compressed air filter 40, does not require a large distance wiring operation, and therefore the length of use of the wire is extremely short, the insulation process is easy, and the walking of the person is not hindered. Can effectively improve the security of use.

It is worth mentioning that, since the DC power supply unit 10 is provided in the present invention, and the power supply of the automatic drainer 20 and the DC solenoid valve 30 is set to DC power, the DC solenoid valve 30 is DC powered. Good power supply reliability can be used for control operations in more important air pressure systems, such as air compressor systems for medical gases and breathing gases. Secondly, the DC solenoid valve 30 has the advantage of being less prone to heat and having a large opening and closing force. In the embodiment, the DC solenoid valve 30 is a self-holding solenoid valve, and the water inlet valve port 31 and the water outlet valve port can be completed by the control of the water level sensing portion 22 of the automatic drainer 20. 32 connection or not action, the position of the valve core does not need electricity to maintain, to save energy, and can not consider the temperature rise, so the coil has a long service life, and has high safety in high-low temperature, explosion-proof and other air pressure systems.

Referring to FIG. 5, an automatic drain control device for a pneumatic system according to a second embodiment of the present invention is also composed of a DC power supply unit 10, an automatic drainer 20, and a DC solenoid valve 30, The configuration and the function are the same as those in the first embodiment, and therefore will not be described again. The second embodiment is different in that the DC solenoid valve 30 is disposed in the carrier 11 of the DC power supply unit 10, and the DC solenoid valve 30 is provided. The inlet valve port 31 and the outlet valve port 32 are exposed to the carrier 11. In this embodiment, the carrier 11 is composed of three-piece assemblies 113, 114, 115, wherein the two components 113, 114 constitute two A space 111 and a second component 114, 115 thereof constitute a second space 112. The first space 111 is respectively received by the DC solenoid valve 30 and the DC electrical connection portion 13. The second space 112 is received by the dry battery 12 In order to achieve another implementation state, and at the same time improve the aesthetics of the automatic drainage control device; it is worth mentioning that the DC electrical connection portion 13 accommodated in the first space 111 may have a circuit design as a dry battery 12 Automatic drainer 2 0, and the transmission of power between the DC solenoid valve 30 and the transmission of control signals.

In the above, the above embodiments and the illustrations are only the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, that is, the equal variations and modifications made by the scope of the present invention. It should be within the scope of the patent of the present invention.

10‧‧‧DC supply unit

11‧‧‧ Carrier

12‧‧‧ dry battery

121‧‧‧ positive

122‧‧‧negative

13‧‧‧DC electrical connection

14‧‧‧Wire

20‧‧‧Automatic drainer

21‧‧‧Drainage exit

22‧‧‧Water level sensing department

23‧‧‧Drainage entrance

24‧‧‧Wire

30‧‧‧DC solenoid valve

31‧‧‧ Inlet valve port

32‧‧‧Water outlet valve

33‧‧‧Electromagnetic Control Department

34‧‧‧Wire

40‧‧‧Compressed air filter

Claims (4)

An automatic drainage control device for an air compressor system, comprising: a DC power supply unit having a carrier, at least one dry battery provided on the carrier and providing DC power, and a DC power connection electrically connected to the dry battery; an automatic drainer, The utility model has a drain outlet, and a water level sensing portion electrically connected to the DC electric connecting portion and sensing the water level inside the automatic drainer; the DC flow solenoid valve has a water inlet valve port and a water outlet valve connected to the drain outlet And an electromagnetic control unit electrically connected to the DC power connection portion and driven by the water level sensing portion to control whether the water inlet valve port is connected to the water outlet valve port; wherein the carrier has a first space and a second The first space is for receiving the DC solenoid valve and the DC electrical connection, and the second space is for receiving the dry battery. The automatic drain control device for an air compressor system according to claim 1, wherein the DC power connection portion of the DC power supply unit is a terminal block. The automatic drain control device for the air compressor system according to claim 1, wherein the DC solenoid valve is a self-holding solenoid valve, and when the electromagnetic control portion is driven by the water level sensing portion, the water inlet is controlled. The valve port is in communication with the water outlet valve port. When the electromagnetic control portion is not driven by the water level sensing portion, the water inlet valve port and the water outlet valve port are controlled to be disconnected. The automatic drain control device for the air compressor system according to claim 1, wherein the DC solenoid valve is disposed in a carrier of the DC power supply unit, and the inlet valve and the outlet valve port of the DC solenoid valve are both Exposed to the carrier.