CN220519137U - Automatic liquid discharging device for negative pressure container - Google Patents

Abstract

The utility model relates to an automatic liquid discharge device of a negative pressure container, and relates to the technical field of tail gas treatment of a complex iron desulfurization process. The automatic liquid draining device of the negative pressure container comprises a box body capable of being communicated with the negative pressure container, wherein the box body is provided with a water outlet and a pressure relief opening, a buoyancy block is arranged in the box body, and the buoyancy block can float under the action of liquid entering the box body from the negative pressure container so as to open the pressure relief opening and enable the liquid to be drained from the water outlet. The automatic liquid discharge device can realize automatic liquid discharge of liquid stored in the negative pressure container under the condition of no shutdown, and avoid the condition of shutdown liquid discharge so as to reduce the working efficiency of the negative pressure container.

Description

Automatic liquid discharging device for negative pressure container

Technical Field

The utility model relates to the technical field of tail gas treatment of a complex iron desulfurization process, in particular to an automatic liquid discharge device of a negative pressure container.

Background

The tail gas treatment of the complex desulfurization process needs to use an activated carbon adsorption box, and a tail gas induced draft fan is additionally arranged behind the tail gas adsorption box, so that negative pressure is formed in the activated carbon adsorption box due to the fact that the suction force of the tail gas induced draft fan is large. A part of water vapor can be condensed in the activated carbon box, and when the condensed water is deposited at the bottom of the box body, the service life of the activated carbon can be reduced, so that the condensed water in the activated carbon box needs to be timely discharged. Aiming at the technology of draining liquid of a negative pressure container, the prior art, such as the Chinese patent application with the application number of CN201611047741.0, discloses an automatic mine drainage device based on a negative pressure water tank and a drainage method thereof, wherein a floating ball type liquid level sensor is adopted to more accurately control the liquid level in the negative pressure water tank, determine the time for switching each valve and starting and stopping a water pump, and reduce the fluctuation of the pipeline pressure of the whole device, thereby reducing the impact on the water pump and ensuring the safe and stable operation of the whole device. But automatic drainage cannot be achieved for the water accumulated in the negative pressure space.

Because the activated carbon box is a negative pressure device, in a normal use state, a blow-down valve is opened, condensed water cannot be discharged, because the inside of the box is negative pressure, air can reversely flow into the box from a blow-down port, and the condensed water cannot be discharged out of the box against air resistance by means of self gravity. At present, only the induced draft fan can be stopped, after the negative pressure in the box body is eliminated, the box body is subjected to intermittent drainage operation, the drainage preparation time is long, the drainage efficiency is low, the activated carbon box is required to be in a stop state for drainage, and the tail gas treatment efficiency is low.

Disclosure of Invention

The utility model provides an automatic liquid discharge device of a negative pressure container, which can realize automatic liquid discharge of liquid stored in the negative pressure container in a non-stop state, and avoid the situation of stopping liquid discharge to reduce the working efficiency of the negative pressure container.

The utility model provides an automatic liquid draining device of a negative pressure container, which comprises a box body capable of being communicated with the negative pressure container, wherein the box body is provided with a water outlet and a pressure relief opening, a buoyancy block is arranged in the box body, and the buoyancy block can float upwards under the action of liquid entering the box body from the negative pressure container so as to open the pressure relief opening and enable the liquid to be drained from the water outlet.

In one embodiment, the buoyancy block is capable of blocking the drain opening. Through this embodiment, the buoyancy piece can be in when not flowing back state the outlet is sealed to the outlet, guarantees that box and negative pressure container are in the intercommunication state and can form the negative pressure in two container interiors, guarantees the normal work of negative pressure container.

In one embodiment, the water outlet is connected with a water outlet pipe, and the water outlet end of the water outlet pipe is hinged with a sealing cover. Through this embodiment, through setting up sealed lid, when the inside negative pressure that forms of box, can make sealed lid shutoff drain pipe, improve the sealed effect of box in drain pipe department.

In one embodiment, the water outlet end of the water outlet pipe is provided with an inclined surface gradually away from the box body from top to bottom. Through this embodiment, sealed lid hasp is in the play water end of drain pipe, when the flowing back is needed, thereby the sealed lid of liquid promotion upwards rotates is opened the drain pipe is done all can to the sealed lid, when not needing the drainage, and sealed lid can be under the action of gravity automatic hasp form seal structure on the drain pipe.

In one embodiment, the pressure relief vent is located at an upper end of the tank.

In one embodiment, the pressure relief opening is provided with a pressure relief valve, a connecting rod is arranged in the box body, one end of the connecting rod is connected with the buoyancy block, the other end of the connecting rod can be in contact with the pressure relief valve, and the pressure relief valve is enabled to open the pressure relief opening. Through this embodiment, through connecting rod and buoyancy piece interconnect, form the linkage structure, when the solution in the box was accumulated to a certain extent, the buoyancy piece received the buoyancy of liquid, automatic upward movement to open the pressure release mouth.

In one embodiment, the connecting rod is detachably connected to the pressure relief valve.

In one embodiment, the pressure relief opening is connected with a pressure relief pipe, the pressure relief valve is a sealing gasket, and the sealing gasket is positioned on the outer side of the pressure relief pipe and can seal the pressure relief pipe. Through this embodiment, the connecting rod lift removes, realizes opening to the pressure release mouth and shutoff state switching.

In one embodiment, the tank is provided with a liquid inlet pipe, and the tank is communicated with the negative pressure container through the liquid inlet pipe.

In one embodiment, the liquid inlet pipe is gradually inclined downwards along the direction approaching the box body. According to the present embodiment, the solution stored in the negative pressure container can smoothly enter the tank through the liquid inlet pipe.

The above-described features may be combined in various suitable ways or replaced by equivalent features as long as the object of the present utility model can be achieved.

Compared with the prior art, the automatic liquid discharge device of the negative pressure container has the following beneficial effects:

the box body is communicated with the negative pressure container, and liquid accumulated in the negative pressure container can be timely discharged into the box body, so that the influence of liquid accumulation in the negative pressure container on the normal work of the negative pressure container is effectively avoided. After a certain amount of solution is accumulated in the box body, the buoyancy block moves upwards under the buoyancy, so that the pressure relief opening is opened, the box body is in a normal pressure state, and the solution in the box body is discharged from the water outlet under the action of gravity. When the liquid in the box body is discharged for a certain amount, the volume of the liquid is reduced, the buoyancy block moves downwards to enable the pressure relief opening to be closed again, the negative pressure container takes away the gas in the box body, the negative pressure is formed in the box body again, and the liquid from the negative pressure container is continuously accumulated.

Drawings

The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings.

Fig. 1 is a perspective view of the present utility model for facilitating the observation of the internal structure.

In the drawings, like parts are designated with like reference numerals. The figures are not to scale.

Reference numerals:

10. a case; 20. a buoyancy block; 21. a connecting rod; 30. a drain pipe; 40. sealing cover; 50. a pressure relief tube; 60. a pressure release valve; 70. a liquid inlet pipe.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

As shown in fig. 1, the utility model provides an automatic liquid discharging device for a negative pressure container, which comprises a box body 10 capable of being communicated with the negative pressure container, wherein the box body 10 is provided with a water outlet and a pressure relief opening, a buoyancy block 20 is arranged in the box body 10, and the buoyancy block 20 can float upwards under the action of liquid entering the box body 10 from the negative pressure container so as to open the pressure relief opening and enable the liquid to be discharged from the water outlet.

Specifically, the box 10 in the figure is a sealing structure, and the notch in the figure is a partial section for facilitating the observation of the structures of the buoyancy block 20 and the connecting rod 21 inside the box 10. In order to ensure that the tail gas is filtered, a fan is usually arranged at the tail end of the active carbon adsorption box to enable the active carbon adsorption box to form negative pressure so that the tail gas can be adsorbed and filtered by the active carbon; however, in the use process, a part of water vapor can be condensed in the activated carbon box, and if the accumulated water cannot be discharged in time, the normal operation of the activated carbon can be influenced. The lower extreme of active carbon adsorption case is linked together with the box 10 upper end of this application, and active carbon adsorption case and box 10 are the negative pressure, and the water of accumulation flows in the box 10 under the action of gravity, and the in-process that water was in transition to box 10 from active carbon adsorption case, active carbon adsorption case remains the state of negative pressure throughout. When a certain amount of water enters the box body 10, the buoyancy block 20 positioned in the box body 10 moves upwards under the buoyancy action of liquid, and at the moment, the buoyancy block 20 opens the pressure relief opening, so that the space in the box body 10 is communicated with the outside atmosphere, the box body 10 plays a role in pressure relief, and the negative pressure is relieved in the box body 10, so that the pressure in the box body 10 is automatically discharged to the water outlet under the action of gravity. In the process of draining the box body 10, the negative pressure fan always keeps in a working state, tail gas of the box body 10 enters the negative pressure container along with external air, the condition that the tail gas leaks cannot occur, and only a small part of the external air enters the negative pressure container, so that the negative pressure environment inside the negative pressure container cannot be greatly influenced, and the negative pressure container can still keep the filtering effect on the tail gas.

In one embodiment, the buoyancy block 20 is capable of sealing off the drain opening. Through this embodiment, buoyancy piece 20 can shutoff outlet when being in the state of not flowing back, guarantees that box 10 and negative pressure container are in the intercommunication state and can form the negative pressure in two containers inside, guarantees the normal work of negative pressure container.

Specifically, the buoyancy block 20 can seal the water outlet as a preferred mode, when the negative pressure state is formed in the box 10, it is ensured that air cannot enter the box 10 through the water outlet, and normal operation of the negative pressure container is prevented from being influenced.

In one embodiment, a drain pipe 30 is connected to the drain port, and a sealing cover 40 is hinged to the water outlet end of the drain pipe 30. By providing the seal cover 40 in this embodiment, when negative pressure is formed in the casing 10, the seal cover 40 can be made to seal the drain pipe 30, and the sealing effect of the casing 10 at the drain pipe 30 can be improved.

In one embodiment, the water outlet end of the water discharge pipe 30 has a slope gradually moving away from the tank 10 from top to bottom. Through this embodiment, the sealing cover 40 is snapped at the water outlet end of the drain pipe 30, when the drain is needed, the liquid can smoothly push the sealing cover 40 to rotate upwards to open the drain pipe 30, and when the drain is not needed, the sealing cover 40 can automatically snap onto the drain pipe 30 under the action of gravity to form a sealing structure.

Specifically, when the negative pressure state is formed in the box 10, the sealing cover 40 can be buckled on the pipe orifice under the action of self gravity, and the sealing cover 40 is tightly contacted with the pipe orifice under the action of suction of negative pressure, so that a certain sealing effect is achieved. When the drain pipe 30 is in contact with the negative pressure, the sealing cover 40 can automatically open the drain pipe under the squeezing action of the liquid.

In one embodiment, the pressure relief vent is located at the upper end of the tank 10.

In one embodiment, the relief valve 60 is disposed in the relief port, the connecting rod 21 is disposed in the tank 10, one end of the connecting rod 21 is connected to the buoyancy block 20, and the other end can contact the relief valve 60 and cause the relief valve 60 to open the relief port. Through this embodiment, through connecting rod 21 and buoyancy piece 20 interconnect, form the linkage structure, when the solution in the box 10 is accumulated to a certain extent, buoyancy piece 20 receives the buoyancy of liquid, moves upwards voluntarily to open the pressure release mouth.

Specifically, the connecting rod 21 can move up and down synchronously along with the buoyancy block 20, but when the buoyancy block 20 receives the buoyancy with larger liquid and moves up, the connecting rod 21 can jack the pressure relief valve 60 to play a role in pressure relief, when the liquid in the box 10 is discharged by a certain amount, the buoyancy block 20 moves down, the connecting rod 21 loses the action of force on the pressure relief valve 60, and the pressure relief valve 60 can reseal the pressure relief opening.

In one embodiment, the connecting rod 21 is detachably connected to the pressure relief valve 60.

Specifically, the connecting rod 21 is in threaded connection with the pressure release valve 60, so that the connecting rod can be conveniently detached and replaced.

In one embodiment, the pressure relief port is connected with a pressure relief tube 50, the pressure relief valve 60 is a gasket, and the gasket is located outside the pressure relief tube 50 and is capable of sealing off the pressure relief tube 50. Through this embodiment, the connecting rod 21 moves up and down, and realizes opening and blocking state switching of the pressure relief opening.

Specifically, the connecting rod 21 can penetrate the pressure release pipe 50, and the pressure release pipe 50 can also play a role of guiding the connecting rod 21. After the solution in the box 10 is discharged by a certain amount, the connecting rod 21 moves downwards along with the buoyancy block 20, at the moment, the sealing gasket loses the effect of the connecting rod 21 and is lapped on the pipe orifice of the pressure relief pipe 50, at the moment, the gas in the box 10 enters into the negative pressure container, the sealing gasket is tightly contacted with the pipe orifice of the pressure relief pipe 50 under the negative pressure effect of the box 10, the effect of preventing the air outside the box 10 from entering into the box 10 through the pressure relief pipe 50 is achieved, and the negative pressure state of the box 10 is maintained until the next liquid discharge. The automatic water discharge after a certain amount of water is accumulated in the box body 10 is realized, the negative pressure is automatically formed in the box body 10 after a certain amount of water is discharged, the stop of a negative pressure container for water discharge is not needed, and the working efficiency is effectively improved.

In one embodiment, the tank 10 is provided with a liquid inlet pipe 70, and the tank 10 is communicated with the negative pressure container through the liquid inlet pipe 70.

In one embodiment, the inlet pipe 70 is gradually inclined downward in a direction approaching the tank 10. In this embodiment, the solution stored in the negative pressure container can smoothly enter the tank 10 through the liquid inlet pipe 70.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "bottom," "top," "front," "rear," "inner," "outer," "left," "right," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. The utility model provides an automatic drain device of negative pressure container, its characterized in that, including the box that can communicate with the negative pressure container, the box is provided with outlet and pressure release mouth, the inside buoyancy piece that is provided with of box, the buoyancy piece can by the negative pressure container enters into the inside liquid effect come-up of box is in order to open the pressure release mouth and make liquid follow the outlet is discharged.

2. The automatic drain device of negative pressure container of claim 1, wherein the buoyancy block is capable of blocking the drain opening.

3. The automatic drain device for negative pressure containers according to claim 1, wherein the drain port is connected with a drain pipe, and a sealing cover is hinged to a water outlet end of the drain pipe.

4. The automatic drain device for negative pressure container according to claim 3, wherein the water outlet end of the drain pipe has a slope gradually away from the tank from top to bottom.

5. The automatic drain device for negative pressure vessels according to any one of claims 1 to 4 wherein the pressure relief port is located at an upper end of the tank.

6. The automatic liquid discharge device for negative pressure containers according to claim 5, wherein the pressure release opening is provided with a pressure release valve, a connecting rod is arranged in the box body, one end of the connecting rod is connected with the buoyancy block, and the other end of the connecting rod can be in contact with the pressure release valve and enable the pressure release valve to open the pressure release opening.

7. The automatic drain device of negative pressure container according to claim 6, wherein the connecting rod is detachably connected to the pressure release valve.

8. The automatic liquid draining device for negative pressure containers according to claim 6, wherein the pressure release opening is connected with a pressure release pipe, the pressure release valve is a sealing gasket, and the sealing gasket is located on the outer side of the pressure release pipe and can seal the pressure release pipe.

9. The automatic liquid discharging device for negative pressure container according to any one of claims 1 to 4, wherein said tank is provided with a liquid inlet pipe through which said tank and said negative pressure container are communicated.

10. The automatic drain device of negative pressure container according to claim 9, wherein the liquid inlet pipe is gradually inclined downward in a direction approaching the tank.