CN201222045Y - Double flux direct-action electromagnetic valve - Google Patents

Abstract

The utility model is a dual-flow direct-acting solenoid valve, which includes a valve body, on which a liquid inlet channel and a liquid outlet channel are arranged, and the liquid inlet channel is two paths, wherein the first liquid inlet channel It is directly connected with the liquid outlet channel, and a solenoid valve is provided at the connection point between the second liquid inlet channel and the liquid outlet channel. The utility model can realize two different flow rates of the medium, guarantee the efficiency and precision, has a simple and reliable structure, basically has no manufacturing cost, and has better economic application value.

Description

A double-flow direct-acting solenoid valve

technical field

The utility model relates to an electromagnetic valve used in the field of coal quality analysis instruments.

Background technique

In constant-volume calorimeter products, it is necessary to inject a certain volume of water into the inner barrel to ensure the normal progress of the experiment, and using a water level probe to quantify the water in the inner barrel is one of the methods. In the prior art, it is realized by using a two-position two-way solenoid valve and a side throttle valve, and the structure is relatively complicated.

Utility model content

Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a double-flow direct-acting solenoid valve with simple structure, convenient use, which can not only meet the requirement of precision, but also increase the speed.

The technical scheme adopted by the utility model to solve the technical problem is: a double-flow direct-acting solenoid valve, which includes a valve body, and a liquid inlet channel and a liquid outlet channel are arranged on the valve body, and the liquid inlet channel There are two paths, wherein the first liquid inlet channel is directly connected with the liquid outlet channel, and the connection between the second liquid inlet channel and the liquid outlet channel is provided with a dual-flow solenoid valve. When the dual-flow solenoid valve is energized, the second The liquid inlet channel communicates with the liquid outlet channel.

In the dual-flow direct-acting solenoid valve, the solenoid valve is a normally closed solenoid valve.

In the dual-flow direct-acting solenoid valve, the solenoid valve is a normally open solenoid valve.

In the dual-flow direct-acting solenoid valve, the diameter of the connection between the first liquid inlet channel and the liquid outlet channel is smaller than the diameter of the connection between the second liquid inlet channel and the liquid outlet channel.

The dual-flow direct-acting solenoid valve, the dual-flow solenoid valve includes a junction box, a coil, and a valve cover, the valve cover is arranged under the coil, the valve cover is arranged on the valve body, and Sealed with the valve body through a sealing ring, the coil is connected to the junction box, and a static iron core, a spring and a moving iron core are arranged in the coil from top to bottom, and the moving iron core is installed in the valve cover , the lower end of the moving iron core abuts against the connection between the second liquid inlet channel and the liquid outlet channel.

The dual-flow direct-acting solenoid valve of the utility model, when the solenoid valve is normally closed, in the state of no power supply, the second liquid inlet channel is in a closed state, and the medium flows through the first liquid inlet channel to the liquid outlet channel, and in the system Under a certain pressure, the flow rate of the medium passing through the solenoid valve at this time depends on the size of the cross-section of the first liquid inlet channel. When the solenoid valve is energized, the medium flows from the first liquid inlet channel and the second liquid inlet channel to the liquid outlet channel at the same time. The flow rate depends on the sum of the cross-sections of the first liquid inlet channel and the second liquid inlet channel; while the solenoid valve is normally open, the opposite is true. When we use it, we can first feed water with a large diameter and a large flow rate, and when the water is injected to an appropriate height, we can use this method to automatically switch the water inlet circuit and switch to a small diameter water inlet, which can meet the accuracy requirements and improve speed requirements.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Arrows in the figure indicate the direction of liquid flow.

Detailed ways

As shown in Figure 1, the dual-flow direct-acting solenoid valve of the present invention includes a valve body 8, the liquid inlet of the valve body 8 is A, and enters the liquid inlet channel from the liquid inlet A, and the liquid inlet channel separates the first One liquid inlet channel 10 and the second liquid inlet channel 11, the liquid outlet of the valve body 8 liquid outlet channel 12 is D, the first liquid inlet channel 10 is directly connected with the liquid outlet channel 12, and the connection point is B, A dual-flow solenoid valve is provided at the communication point C between the second liquid inlet channel 11 and the liquid outlet channel 12 , and the second liquid inlet channel 11 communicates with the liquid outlet channel 12 when the dual-flow solenoid valve is energized. The caliber of connection B is smaller than the caliber of connection C.

The double-flow solenoid valve includes a junction box 9, a coil 3, and a valve cover 5. The valve cover 5 is arranged under the coil 3, and the valve cover 5 is arranged on the valve body 8, and is sealed with the valve body 8 by a sealing ring 3, and the coil 3 Connected with the junction box 9, a static iron core 1, a spring 2 and a moving iron core 4 are arranged from top to bottom in the coil 3, the moving iron core 4 is penetrated in the valve cover 5, and the lower end of the moving iron core 4 abuts against the Connected to position C.

Solenoid valves can be normally closed or normally open, and the usage of the two is reversed. The structure of the utility model is simple and reliable, basically has no manufacturing cost, and has good economic application value; it can well meet the needs of use.

The above are the preferred embodiments of the utility model, and all changes made according to the technical solution of the utility model, when the functional effect produced does not exceed the scope of the technical solution of the utility model, all belong to the protection scope of the utility model.

Claims (5)

1. A double-flow direct-acting solenoid valve, which includes a valve body, on which a liquid inlet channel and a liquid outlet channel are arranged, and it is characterized in that: the liquid inlet channel has two paths, wherein the first path The liquid inlet channel is directly connected with the liquid outlet channel, and a solenoid valve is provided at the connection between the second liquid inlet channel and the liquid outlet channel. 2. The dual-flow direct-acting solenoid valve according to claim 1, wherein the solenoid valve is a normally closed solenoid valve. 3. The dual-flow direct-acting solenoid valve according to claim 1, wherein the solenoid valve is a normally open solenoid valve. 4. The double-flow direct-acting solenoid valve according to claim 1, characterized in that: the diameter of the connection between the first liquid inlet channel and the liquid outlet channel is smaller than that of the second liquid inlet channel and the second liquid inlet channel. Describe the caliber of the connecting part of the outlet liquid channel. 5. The double-flow direct-acting solenoid valve according to claim 1, characterized in that: the double-flow solenoid valve includes a junction box, a coil, and a valve cover, the valve cover is arranged under the coil, and the valve The cover is arranged on the valve body, and is sealed with the valve body through a sealing ring. The coil is connected with the junction box, and a static iron core, a spring and a moving iron core are arranged in the coil from top to bottom. The iron core is installed in the valve cover, and the lower end of the moving iron core is against the connection with the second liquid inlet channel and the liquid outlet channel.

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