CN110180852A - A kind of automatic liquid supply device - Google Patents

Abstract

The invention discloses an automatic liquid replenishing device, which includes a liquid level pressure sensor, a PLC, a cleaning agent solenoid valve, a tap water solenoid valve, a liquid storage tank and a cleaning agent storage tank; the liquid level pressure sensor is installed in the liquid storage tank. The signal output of the liquid level and pressure sensor is connected to the PLC. When the liquid level in the liquid storage tank is lower than the manually set minimum liquid level threshold, the liquid level and pressure sensor sends the rehydration signal to the PLC. After analysis and processing, the PLC will open The valve signal is sent to the cleaning agent solenoid valve and the tap water solenoid valve, thereby opening the cleaning agent solenoid valve and the tap water solenoid valve, and controlling the cleaning agent and tap water in the cleaning agent storage tank to flow into the liquid storage tank. When the liquid is replenished to the set level, the liquid The pressure sensor sends a stop replenishing signal to the PLC. It solves the problems of low concentration control accuracy and high cost of manual replenishment of cleaning fluid in existing equipment.

Description

An automatic rehydration device

technical field

The invention relates to a liquid replenishing device, in particular to an automatic liquid replenishing device.

Background technique

During the cleaning and rinsing process, due to the evaporation of water vapor and the failure of the cleaning agent activity, the liquid level in the liquid storage tank will continue to drop. The two liquids (tap water and cleaning agent) are respectively injected into the liquid storage tank of the cleaning module and the liquid storage tank of the rinsing module according to a certain ratio (volume ratio 9:1).

The replenishment process is often not mixed well by manual methods, and manual replenishment requires high labor costs

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an automatic liquid replenishing device, which is used to solve the problems of low concentration control precision and high cost of manual replenishment of cleaning liquid in existing equipment.

To achieve the above object, the present invention adopts the following technical solutions:

An automatic liquid replenishing device comprising a liquid level pressure sensor, a PLC, a cleaning agent solenoid valve, a tap water solenoid valve, a liquid storage tank and a cleaning agent storage tank;

The liquid level pressure sensor is installed in the liquid storage tank, and the signal output of the liquid level pressure sensor is connected to the PLC. When the liquid level in the liquid storage tank is lower than the manually set minimum liquid level threshold, the liquid level pressure sensor will The replenishment signal is sent to the PLC, and after analysis and processing by the PLC, the valve opening signal is sent to the cleaning agent solenoid valve and the tap water solenoid valve, so as to open the cleaning agent solenoid valve and the tap water solenoid valve, and control the cleaning agent and tap water in the cleaning agent storage tank. In the liquid storage tank, when the liquid replenishment reaches the set liquid level, the liquid level pressure sensor sends a stop replenishment signal to the PLC.

Preferably, the above-mentioned cleaning agent storage tank includes a tank body, an exhaust valve, a filler cap, a filler port, a liquid outlet quick connector, an air inlet quick connector, a pneumatic triple piece, a manual ball valve, an air inlet pipe, a liquid outlet pipe, The liquid level visual scale window; the air inlet pipe includes a first pipeline, a second pipeline, and a third pipeline; the tank body is used to hold the liquid that needs to be supplemented, and the top of the tank body has the liquid outlet quick joint and the air inlet quick joint, the air inlet quick joint is connected to one end of the first pipeline, the other end of the first pipeline is connected to one end of the pneumatic triple piece, and the other end of the pneumatic triple piece is connected to one end of the second pipeline, The other end of the second pipe is connected to one end of the manual ball valve, the other end of the manual ball valve is connected to the third pipe, and the quick connector of the air inlet is inserted into the tank body; one end of the quick connector of the liquid outlet is deep to the bottom of the tank body, and the other end is connected to the One end of the liquid pipe and the other end of the liquid outlet pipe are Y-shaped, and solenoid valve 1 and solenoid valve 2 of the cleaning agent solenoid valve are respectively installed on the two branches; an exhaust gas is provided on the pipe wall near the top of the tank body Valve, the side of the tank body is provided with a transparent liquid level visual scale window; the top of the tank body is provided with a liquid filling port in the shape of a funnel, and the liquid filling port 605 has a corresponding liquid filling port gland.

Preferably, the connection between the above-mentioned liquid refilling port and the liquid refilling port gland can be engaged by frosting, or screwed by threads, or the liquid refilling port can be pressed by the gravity of the gland itself.

Preferably, the material of the tank body is 304 stainless steel.

Preferably, the above cleaning solution and tap water are injected into the liquid storage tank in a ratio of 1 to 9.

The present invention has the following advantages:

The invention detects the liquid level in the storage tank through the automatic liquid replenishment system, and when the liquid level is lower than the minimum liquid level threshold, the tap water solenoid valve and the cleaning agent solenoid valve are opened in time for automatic liquid replenishment without manual replenishment. Through the pipe diameter and water pressure or air pressure value, the concentration of cleaning agent mixed with tap water is controlled to be 10%, and the ratio is more accurate; the air pressure value on the cleaning agent liquid is relatively stable by using pneumatic triple parts, and the solenoid valve When opening, the cleaning agent is pressed out without delay; by adopting this liquid replenishing method, the air pressure in the storage tube is guaranteed to be stable when the liquid is replenished, and the replenished liquid can smoothly enter the storage tank. This makes the automatic rehydration device obtain better practicability and reliability.

Description of drawings

Fig. 1 is a system working principle diagram of an automatic liquid replenishing device of the present invention.

FIG. 2 is a schematic structural diagram of a cleaning agent storage tank of an automatic liquid replenishing device according to the present invention.

3 is a top view of a cleaning agent storage tank of an automatic liquid replenishing device of the present invention.

4 is a schematic structural diagram of a cleaning/rinsing module of an automatic liquid replenishing device of the present invention.

In the figure: 1. Liquid level pressure sensor; 2. PLC; 3. Cleaning agent solenoid valve; 4. Tap water solenoid valve; 5. Liquid storage tank; 6. Storage tank; A. Compressed air; B. Tap water source; 301. Solenoid valve 1; 302, solenoid valve 2; 601, tank body; 602, holding liquid; 603, exhaust valve; 604, filling port gland; 605, filling port; 606, liquid outlet quick connector; 607, air inlet Quick connector; 608, pneumatic triplet; 609, manual ball valve; 610, intake pipe; 6101, the first pipe; 6102, the second pipe; 6103, the third pipe; 611, the liquid outlet pipe; 614, the liquid level visual Scale window.

Detailed ways

The embodiments of the present invention are described below by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

It should be noted that the structures, proportions, sizes, etc. shown in the drawings in this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with the technology, and are not used to limit the implementation of the present invention. Restricted conditions, it does not have technical substantive significance, any structural modification, proportional relationship change or size adjustment, without affecting the effect that the present invention can produce and the purpose that can be achieved, should still fall within the present invention. The disclosed technical content must be within the scope of coverage. At the same time, terms such as "up", "down", "left", "right", "middle", etc. quoted in this specification are only for the convenience of description and clarity, and are not used to limit the scope of the present invention. , the change or adjustment of the relative relationship, without substantial change of the technical content, should also be regarded as the scope of the present invention.

Example 1

Referring to FIG. 1, an automatic liquid replenishing device, the liquid replenishing device includes a liquid level pressure sensor 1, a PLC2, a cleaning agent solenoid valve 3, a tap water solenoid valve 4, a liquid storage tank 5 and a cleaning agent storage tank 6;

The liquid level pressure sensor 1 is installed in the liquid storage tank 5, and the signal output of the liquid level pressure sensor 1 is connected to the PLC2. When the liquid level in the liquid storage tank 5 is lower than the manually set minimum liquid level threshold, the liquid The position pressure sensor 1 sends the rehydration signal to the PLC2, the PLC analyzes and processes, and then sends the valve opening signal to the cleaning agent solenoid valve 3 and the tap water solenoid valve 4, thereby opening the cleaning agent solenoid valve 3 and the tap water solenoid valve 4 to control the cleaning agent. The cleaning agent and tap water in the storage tank 6 flow into the liquid storage tank 5. When the liquid replenishment reaches the set liquid level, the liquid level pressure sensor 1 sends a signal to stop the liquid replenishment to the PLC5.

Referring to FIGS. 2 to 4 , in a specific implementation, the above-mentioned cleaning agent storage tank 6 includes a tank body 601 , an exhaust valve 603 , a liquid replenishment port gland 604 , a liquid replenishment port 605 , a liquid outlet quick connector 606 , and an air inlet quick connector 607 , pneumatic triple 608, manual ball valve 609, inlet pipe 610, liquid outlet pipe 611, liquid level visual scale window 614; the inlet pipe 610 includes a first pipe 6101, a second pipe 6102, and a third pipe 6103; The tank body 601 is used to hold the liquid that needs to be supplemented. The top of the tank body 601 has the quick joint 606 for the liquid outlet and the quick joint 607 for the air inlet. The other end of the first pipeline 6101 is connected to one end of the pneumatic triple piece 608, the other end of the pneumatic triple piece 608 is connected to one end of the second pipeline 6102, the other end of the second pipeline 6102 is connected to one end of the manual ball valve 609, the manual ball valve The other end of 609 is connected to the third pipe 6103, and the quick connector 607 of the air inlet is inserted into the tank body 601; The other end of the pipe is Y-shaped, and the solenoid valve 1 301 and solenoid valve 2 302 of the cleaning agent solenoid valve 3 are respectively installed on the two branches; an exhaust valve 603 is provided on the pipe wall near the top of the tank 601, The side of the tank 601 is provided with a transparent liquid level visual scale window 614; the top of the tank 601 is provided with a funnel-shaped refill port 605, and the liquid refill port 605 has a corresponding liquid refill port gland 604.

In a specific implementation, the connection between the above-mentioned liquid refill port 605 and the liquid refill port gland 604 can be engaged by frosting, or screwed by threads, or the liquid refill port can be pressed by the gravity of the gland itself.

In specific implementation, the material of the tank body 601 is 304 stainless steel.

In a specific implementation, the above-mentioned cleaning liquid and tap water are injected into the liquid storage tank 5 in a ratio of 1:9.

In specific implementation, the first solenoid valve 301 and the second solenoid valve 302 of the cleaning agent solenoid valve 3 are respectively connected to the cleaning module and the rinsing module.

Although the present invention has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the present invention, which will be obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention fall within the scope of the claimed protection of the present invention.

Claims (5)

1. An automatic liquid replenishing device, characterized in that: the liquid replenishing device comprises a liquid level pressure sensor (1), a PLC (2), a cleaning agent solenoid valve (3), a tap water solenoid valve (4), a liquid storage tank (5) ) and cleaning agent storage tank (6); The liquid level pressure sensor (1) is installed in the liquid storage tank (5), and the signal output of the liquid level pressure sensor (1) is connected to the PLC (2). When the liquid level in the liquid storage tank (5) is lower than When the minimum liquid level threshold is manually set, the liquid level pressure sensor (1) sends the replenishment signal to the PLC (2), and the PLC analyzes and processes it, and then sends the valve opening signal to the cleaning agent solenoid valve (3) and the tap water solenoid valve. (4), thereby opening the cleaning agent solenoid valve (3) and the tap water solenoid valve (4) to control the cleaning agent and tap water in the cleaning agent storage tank (6) to flow into the liquid storage tank (5). When the liquid level pressure sensor (1) sends a stop signal to the PLC (5). 2. An automatic fluid replenishing device according to claim 1, characterized in that: the cleaning agent storage tank (6) comprises a tank body (601), an exhaust valve (603), a fluid replenishing port gland (604), Liquid replenishment port (605), liquid outlet quick joint (606), air inlet quick joint (607), pneumatic triple piece (608), manual ball valve (609), air inlet pipe (610), liquid outlet pipe (611), A liquid level visual scale window (614); the air inlet pipe (610) includes a first pipe (6101), a second pipe (6102), and a third pipe (6103); the tank (601) is used for containing For the liquid to be replenished, the top of the tank body (601) has the liquid outlet quick connector (606) and the air inlet quick connector (607), and the air inlet quick connector (607) is connected to the first pipeline (6101) One end, the other end of the first pipe (6101) is connected to one end of the pneumatic triple (608), the other end of the pneumatic triple (608) is connected to one end of the second pipe (6102), the second pipe (6102) ) is connected to one end of the manual ball valve (609), the other end of the manual ball valve (609) is connected to the third pipe (6103), the air inlet quick connector (607) is inserted into the tank (601); the liquid outlet quick connector ( One end of 606) is deep to the bottom of the tank (601), and the other end is connected to one end of the liquid outlet pipe (611). (3) solenoid valve one (301) and solenoid valve two (302); an exhaust valve (603) is provided on the pipe wall of the tank body (601) near the top, and the side of the tank body (601) is provided with a transparent A liquid level visual scale window (614); the top of the tank body (601) is provided with a funnel-like liquid replenishment port (605), and the liquid replenishment port (605) has a corresponding liquid replenishment port gland (604). 3. An automatic fluid replenishing device according to claim 2, characterized in that: the connection mode of the fluid replenishing port (605) and the fluid replenishing port gland (604) can be bitten by frosting, or can be tightened by threads , or press the rehydration port by the gravity of the gland itself. 4. An automatic liquid replenishing device according to claim 2, characterized in that: the material of the tank body (601) is 304 stainless steel. 5 . An automatic liquid replenishing device according to claim 1 , wherein the cleaning liquid and tap water are injected into the liquid storage tank ( 5 ) in a ratio of 1 to 9. 6 .