CN111412307A - Mechanical Delay Float Controller - Google Patents

Abstract

The invention provides a mechanical time-delay float controller, which relates to the field of pressure pipeline equipment; the invention comprises: a valve body, a piston, a connecting rod and a float; one end of the valve body is a liquid inlet; The bottom is connected with the piston through the connecting rod, the piston is slidably sleeved in the valve body through the liquid inlet, and can slide up and down along the valve body; The liquid inlet channel is connected with the liquid inlet; the floating ball floats up, so that the piston rises to block the liquid inlet; the connecting rod is sleeved with a damper, The damper is fixed on the valve body. The mechanical delay float controller of the present invention controls the liquid level by relying on the float, and when the float does not float to a predetermined position, the piston is located at the lower part of the liquid inlet to ensure continuous liquid feeding until the liquid inlet is blocked; and Due to the setting of the damper, it can avoid the accident that the float ball frequently moves and damages the valve body due to the floating of the liquid level during the high-pressure liquid inlet process.

Description

Mechanical Delay Float Controller

technical field

The invention relates to pressure vessel manufacturing technology, in particular to a mechanical time-delay float controller, which belongs to the technical field of pipeline equipment manufacturing.

Background technique

In the application process of the liquid storage system, the liquid level float is a common control component. The principle of float control is to use the float of the float level switch to rise or fall with the liquid level, so that the valve body or switch parts can make corresponding actions to realize the automatic control of the liquid level.

The floating ball valve in the prior art adopts the design that the valve core is directly connected with the floating ball. When the pressure or liquid level in the liquid storage tank changes drastically, the problems of stuck and incomplete closing are easy to occur, thereby damaging the floating ball control. the mechanical structure of the device.

The existing float controller has the following technical problems when the pressure changes greatly:

1. When the liquid level fluctuates violently, the valve opens or closes unexpectedly, which is prone to damage or incomplete action;

2. When the air pressure of the liquid storage system changes greatly, the floating ball vibrates repeatedly, and the valve core moves repeatedly, causing leakage.

SUMMARY OF THE INVENTION

The present invention provides a mechanical time-delayed float controller for a high-pressure liquid storage tank, so as to solve the technical problems that the float valve in the prior art is easily damaged and stuck.

The mechanical delay float controller of the present invention comprises: a valve body, a piston, a connecting rod and a floating ball; one end of the valve body is a liquid inlet;

The bottom of the floating ball is connected with the piston through the connecting rod, and the piston is slidably sleeved in the valve body through the liquid inlet, and can slide up and down along the valve body;

The valve body is provided with a liquid inlet channel for liquid inlet, and the liquid inlet channel is connected with the liquid inlet port; the floating ball floats up, so that the piston rises to block the liquid inlet port;

A damper is sleeved on the connecting rod, and the damper is fixed on the valve body.

The above mechanical time-delay float controller, wherein a diversion channel is arranged in the piston; the piston blocks the liquid inlet, so that the diversion channel is communicated with the liquid inlet channel .

In the above-mentioned mechanical time-delay float controller, a limiter is further provided on the upper end of the valve body, and the limiter is located above the piston.

In the above mechanical time-delay float controller, a support rod is provided on the top of the valve body, and the damper is mounted on the valve body through the support rod.

The mechanical delay float controller as described above, wherein the damper comprises: a fixed speed gear and a strip tooth; the strip tooth is fixed on the connecting rod along the numerical direction, and the fixed speed gear is installed on the connecting rod. on the valve body; the constant speed gear meshes with the strip teeth.

In the above mechanical time-delay float controller, an overflow pipe is connected to the diversion channel, and the overflow tube communicates with the liquid inlet channel through the diversion channel.

In the above mechanical time-delay float controller, a plurality of liquid inlet channels are arranged in the valve body.

The mechanical time-delay float controller of the present invention controls the liquid level by relying on the float, and when the float does not float to a predetermined position, the piston is located at the lower part of the liquid inlet to ensure continuous liquid feeding until the liquid inlet is blocked; and Due to the setting of the damper, it avoids the accident that the float ball frequently moves and damages the valve core due to the floating of the liquid level during the high-pressure liquid inlet process, and also avoids the technical problem that the piston is easily stuck when the high-pressure liquid inlet starts.

Description of drawings

1 is a schematic diagram of an open state of a mechanical time-delay float controller according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a closed state of a mechanical delay float controller according to an embodiment of the present invention.

Detailed ways

As shown in Figure 1 and Figure 2; the mechanical delay float controller of this embodiment includes: a valve body 1, a piston 4, a connecting rod 3 and a float ball 2; one end of the valve body 1 is the liquid inlet; as shown in the figure 1. The liquid inlet is the top outlet of the valve body 1.

The bottom of the floating ball 2 is connected with the piston 4 through the connecting rod 3 , and the piston 4 is slidably sleeved in the valve body 1 through the liquid inlet, and can slide along the valve body. 1 slides up and down; in general, the valve body 1 is a structure with a cylindrical cavity, and the piston 4 moves up and down in the cavity.

The valve body 1 is provided with a liquid inlet channel 10 for liquid inlet, and the liquid inlet channel 10 is connected with the liquid inlet port; the float ball 2 floats up, so that the piston 4 rises to block the inlet port. Liquid port; that is, the piston rises, so that the outlet of the liquid inlet channel 10 is blocked, and the liquid inlet cannot be realized.

A damper 60 is sleeved on the connecting rod 3 , and the damper 60 is fixed on the valve body 1 .

Preferably, a guide channel 5 is provided in the piston 4 ; the piston 4 blocks the liquid inlet, so that the guide channel 5 communicates with the liquid inlet channel 10 .

As shown in Figure 1, the piston moves to the bottom of the cavity. At this time, the liquid inlet channel 10 and the liquid inlet are connected to each other, which can realize continuous liquid inflow, so that the liquid in the high-pressure tank continues to increase; as the liquid increases, the floating ball floats up. , the connecting rod drives the piston to slide upward to close the liquid inlet.

As shown in Figure 2, the piston completely cuts off the communication between the liquid inlet channel and the liquid inlet, so that the liquid in the liquid inlet channel flows into the diversion channel in the piston, and the excess liquid is discharged through the diversion channel.

The mechanical time-delay float controller of the present invention controls the liquid level by relying on the float, and when the float does not float to a predetermined position, the piston is located at the lower part of the liquid inlet to ensure continuous liquid feeding until the liquid inlet is blocked; and Due to the setting of the damper, it avoids the accident that the float ball frequently moves and damages the valve core due to the floating of the liquid level during the high-pressure liquid inlet process, and also avoids the technical problem that the piston is easily stuck when the high-pressure liquid inlet starts.

In the mechanical time delay float controller of this embodiment, a limiter 7 is also provided on the upper end of the valve body 1 , and the limiter 7 is located above the piston 4 and is used for the flow between the diversion channel and the liquid inlet. After the channel is connected, the piston is prevented from moving upward under the vibration of the float ball or other actions, and additional liquid injection is avoided to the greatest extent.

In the mechanical delay float controller of this embodiment, a support rod 6 is provided on the top of the valve body 1 , and the damper 60 is installed on the valve body 1 through the support rod 6 .

Specifically, the damper 6 includes: a fixed speed gear and a bar-shaped tooth; the bar-shaped tooth is fixed on the connecting rod 3 in the numerical direction, and the constant speed gear is installed on the valve body 1; the A constant speed gear meshes with the bar teeth.

Therefore, mechanical damage and misoperation caused by the oscillation of the float ball can be avoided when the liquid level fluctuates or the air pressure changes drastically.

In the mechanical delay float controller of this embodiment, an overflow pipe is connected to the diversion channel 5. When the piston floats to the top, the overflow tube communicates with the liquid inlet through the diversion channel 5. channel is connected.

In the mechanical delay float controller of the present embodiment, a plurality of liquid inlet channels 10 are arranged in the valve body 1 .

In addition, the mechanical delay float controller of the present invention has the advantages of low manufacturing cost, compact structure, firm and stable structure, simple assembly and disassembly, and convenient maintenance, and can be used in pressure equipment such as various liquid storage containers.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (7)

1. A mechanical time-delay float controller, comprising: a valve body, a piston, a connecting rod and a floating ball; one end of the valve body is a liquid inlet; The bottom of the floating ball is connected with the piston through the connecting rod, and the piston is slidably sleeved in the valve body through the liquid inlet, and can slide up and down along the valve body; The valve body is provided with a liquid inlet channel for liquid inlet, and the liquid inlet channel is connected with the liquid inlet port; the floating ball floats up, so that the piston rises to block the liquid inlet port; A damper is sleeved on the connecting rod, and the damper is fixed on the valve body. 2 . The mechanical time-delay float controller according to claim 1 , wherein a diversion channel is arranged in the piston; the piston blocks the liquid inlet, so that the diversion channel and the The liquid inlet channels are communicated. 3 . The mechanical delay float controller according to claim 1 , wherein a limiter is further provided on the upper end of the valve body, and the limiter is located above the piston. 4 . 4 . The mechanical time-delay float controller according to claim 1 , wherein a support rod is provided on the top of the valve body, and the damper is installed on the valve through the support rod. 5 . body. 5. The mechanical delay float controller according to any one of claims 1-3, wherein the damper comprises: a constant speed gear and a bar tooth; the bar tooth is fixed on the On the connecting rod, the fixed-speed gear is mounted on the valve body; the fixed-speed gear meshes with the strip teeth. 6 . The mechanical time-delay float controller according to claim 1 , wherein an overflow pipe is connected to the diversion channel, and the overflow tube communicates with the diversion channel through the diversion channel. 7 . The liquid inlet channel is connected. 7 . The mechanical time-delay float controller according to claim 1 , wherein the valve body is provided with a plurality of liquid inlet channels. 8 .

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