CN218325137U

CN218325137U - Device for sealing negative pressure box body for draining water

Info

Publication number: CN218325137U
Application number: CN202222838786.7U
Authority: CN
Inventors: 谭炯; 陈意; 黄鹏; 李小红; 李嘉炜
Original assignee: Hubei Ruisheng Intelligent Manufacturing Technology Co ltd
Current assignee: Hubei Ruisheng Intelligent Manufacturing Technology Co ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-01-17
Anticipated expiration: 2032-10-27

Abstract

A device for sealing the drainage of a negative pressure box body comprises: the sealed negative pressure box body comprises a negative pressure fan and a sealed box body, the negative pressure fan is arranged on the positive side surface of the sealed box body, and a condensation drain pipe is arranged at the bottom of the sealed negative pressure box body; the device comprises a device body, wherein the device body is of a semi-open tank structure, a central water pipe is arranged at the top end of the device body, the bottom of the central water pipe is 2-3cm away from the bottom of the device body, a drainage pipeline is arranged on the side face of the device body, and a drainage outlet of the drainage pipeline is higher than the bottom of the central water pipe. The water seal that forms through the device main part is cut apart into two systems with the pressure system of condensation drain pipe, through the pressure differential of device main part and sealed negative pressure box, the pressure differential of device main part and condensation drain pipe, with the balanced water seal of a whole set of drain pipe in the original design, become the unbalanced drainage comdenstion water of the balanced water seal of local in the device main part and condensation drain pipe, through calculating the design, continuously influence the balance of water seal with unbalanced drainage, realize the function of lasting drainage.

Description

Device for sealing negative pressure box body for draining water

Technical Field

The utility model particularly relates to a device of sealed negative pressure box drainage.

Background

Usually, can utilize when getting rid of foul gas to collect the fan and lead waste gas to the airtight box in and handle, for guaranteeing the treatment effect, can keep negative pressure state in the box and avoid gaseous loss.

This case has the following problems:

1) During operation, if the pressure resistance of the front end part is increased, the negative pressure in the box body is obviously increased.

2) Too high a negative pressure can damage or even tear the box structure.

3) The excessively high negative pressure can lead to the fact that negative pressure is kept in the drain pipe all the time, and the condensed water in the box body cannot be discharged outside, so that the service life of an electric element in the box body is influenced.

4) Thickening the drain pipe will reduce the negative pressure effect, accelerate the drainage, but must be thickened in the whole course, will increase the system cost.

5) In principle, sealed negative pressure must be kept in the box body, condensed water of the box body is accumulated for a long time and is slowly discharged, external gas cannot be led into the box body for a long time, and a main flow pressure stabilizing valve and a vacuum breaking valve on the market have small pipe diameters, cannot recover pressure balance through short-term quick air inlet and have high cost.

SUMMERY OF THE UTILITY MODEL

To the above, the utility model provides a device of sealed negative pressure box drainage to solve the problem that proposes in the above-mentioned background art.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a device of sealed negative pressure box drainage includes: the sealed negative pressure box body for treating the malodorous gas comprises a negative pressure fan and a sealed box body, wherein the negative pressure fan is arranged on the positive side surface of the sealed box body, and the bottom of the sealed negative pressure box body is provided with a condensation drain pipe; the device comprises a device body, wherein the device body is of a semi-open tank body structure, a central water pipe which is connected with the condensation drain pipe in a matched mode is arranged in the middle of the top end of the device body, the bottom of the central water pipe is 2-3cm away from the bottom of the device body, the horizontal drainage pipe is arranged on the side face of the device body, a water outlet of the drainage pipe is higher than the bottom of the central water pipe, and a plurality of air holes are formed in the top ends of the two sides of the central water pipe of the device body.

Further, the sealed negative pressure box body is arranged right above the device main body, and the condensation drain pipe is connected with the central water pipe in a sleeved mode.

Further, the pipeline mouth of condensation drain pipe is cutting sawtooth shape.

Further, the pipe diameter of the drainage pipe is smaller than the pipe diameters of the condensation drainage pipe and the central water pipe.

The utility model has the advantages that: the pressure system of the condensation drain pipe is divided into two systems through the water seal formed by the device main body, the balanced water seal of the whole set of drain pipe in the original design is changed into unbalanced drainage condensate water of the local balanced water seal and the condensation drain pipe in the device main body through the pressure difference between the device main body and the sealed negative pressure box body and the pressure difference between the device main body and the condensation drain pipe, and the balance of the water seal is continuously influenced by unbalanced drainage through calculation design, so that the function of continuous drainage is realized; and has various advantages or beneficial effects:

1) The normal drainage of the sealed negative pressure box body can be kept without complex electric control or instruments.

2) The maintenance is basically not needed in the ordinary operation process, and the maintenance cost is low.

3) The condition that the pressure of the sealed negative pressure box body is changed violently can be responded, and the safety of the box body structure is guaranteed.

4) The drainage pipeline to the far end can adopt normal pipe diameter, and the project cost is controlled.

Drawings

Fig. 1 is a schematic flow chart of condensed water drainage under normal water seal condition.

Fig. 2 is a schematic structural diagram of the present invention.

In the figure, 1, a sealed box body; 2. a negative pressure fan; 3. a condensation drain pipe; 4. a central water pipe; 5. a water drainage pipeline; 6. a device main body; 7. and (4) air holes.

Detailed Description

The invention is further described with reference to the drawings and some embodiments.

In fig. 1-2, there is provided a device for sealing the drainage of a negative pressure tank, comprising: the sealed negative pressure box body for treating the malodorous gas comprises a negative pressure fan 2 and a sealed box body 1, wherein the negative pressure fan 2 is arranged on the positive side surface of the sealed box body 1, and a condensation drain pipe 3 is arranged at the bottom of the sealed negative pressure box body; during operation, the pipe diameter of the condensation drain pipe 3 can be set according to the negative pressure air quantity, and the condensation drain pipe is used for stably and safely discharging condensed water.

In this embodiment, the apparatus body 6 is a semi-open tank structure, a central water pipe 4 connected with the condensation drain pipe 3 in a matching manner is arranged in the middle of the top end of the apparatus body 6, the bottom of the central water pipe 4 is 2-3cm away from the bottom of the apparatus body 6, a horizontal drain pipe 5 is arranged on the side surface of the apparatus body 6, a drain outlet of the drain pipe 5 is higher than the bottom of the central water pipe 4, and a plurality of air holes 7 are arranged at the top ends of two sides of the central water pipe 4 of the apparatus body 6; when the device works, because the gravity of condensed water is greater than the negative pressure gravitation in the sealed box body 1, the condensed water in the sealed box body 1 is discharged into the tank body through the condensation drain pipe 3, when the water level rises to submerge the central water pipe 4, the water sealing effect on the sealed box body 1 is formed, the negative pressure in the sealed box body 1 can maintain the water sealing effect, the water level in the box body can be higher than the water level of the tank body and rises to be balanced inside and outside, and the damage or tearing of the box body structure caused by overhigh negative pressure in the sealed box body 1 is avoided; meanwhile, the bottoms of the device main body 6 and the central water pipe 4 are both at normal atmospheric pressure, so that a balanced water seal cannot be formed, the condensed water is naturally discharged when the water level rises to the horizontal water discharge port of the water discharge pipe 5, the stability of the water level inside the device main body 6 is kept, the condensed water is naturally discharged, the introduced waste gas treatment is not influenced by the introduction of external gas, and the condensed water is prevented from being accumulated in the sealed box body 1 for a long time to influence the service life of electric elements inside the box body.

In this embodiment, the sealed negative pressure tank is arranged right above the device main body 6, and the condensation drain pipe 3 is sleeved with the central water pipe 4; the condensation drain pipe 3 is sleeved with the central water pipe 4 in a sealing manner, so that the negative pressure state and the water sealing effect in the sealing box body 1 are prevented from being damaged.

In the embodiment, the pipeline opening of the condensation drain pipe 3 is in a cutting sawtooth shape; avoid the air to form big bubble and gush into and produce the noise.

In this embodiment, the pipe diameter of the drainage pipe 5 is smaller than the pipe diameters of the condensation drainage pipe 3 and the central water pipe 4; when negative pressure is increased in the sealed box body 1 due to special reasons, the water level of the device main body 6 is lowered to be lower than the central water pipe 4, a water seal is damaged, the central water pipe 4 is directly exposed in the air, the gravity of condensed water cannot be counteracted by negative pressure gravitation due to the fact that the pipe diameters of the central water pipe 4 and the condensation drain pipe 3 are large, the condensed water can fall down, the air flows in, the air is rapidly fed, pressure balance is restored, continuous drainage of the drain pipe 5 is guaranteed, the situation that the pressure of the box body is changed violently is met, and the safety of the box body structure is guaranteed; and the drainage pipeline 5 can realize normal drainage only by a small pipe diameter, the pipe diameter of the drainage pipeline 5 is calculated according to the project scale, and the project cost is controlled.

In this embodiment, different liquid level differences can be calculated according to the negative pressure suction force of the negative pressure fan 2, the box structure of the sealed box body 1, the safety liquid level of the condensed water, and the like, so that the unbalanced drainage of the local balance water seal and the condensation drain pipe 3 in the device main body 6 is maintained, and the effect of continuous drainage is realized.

The utility model discloses when concrete implementation: when the device works, the pipe diameter of the condensation drain pipe 3 can be set according to the negative pressure air quantity and is used for stably and safely discharging condensed water, because the self gravity of the condensed water is greater than the negative pressure gravitation in the sealing box body 1, the condensed water in the sealing box body 1 is discharged into the tank body through the condensation drain pipe 3, when the water level rises to submerge the central water pipe 4, a water sealing effect on the sealing box body 1 is formed, the negative pressure in the sealing box body 1 can keep the water sealing effect, the water level in the tank body can rise to be balanced inside and outside higher than the water level of the tank body, and the damage or the tearing of the box body structure caused by the overhigh negative pressure in the sealing box body 1 is avoided; meanwhile, because the bottoms of the device main body 6 and the central water pipe 4 are both at normal atmospheric pressure, a balanced water seal cannot be formed, and when the water level rises to the horizontal water discharge port of the water discharge pipe 5, the water level inside the device main body 6 is kept stable, the natural discharge of condensed water is realized, and the introduced waste gas treatment is not influenced by introducing external gas, so that the condensed water is prevented from accumulating in the sealed box body 1 for a long time and influencing the service life of electric elements inside the box body; when negative pressure is increased in the sealed box body 1 due to special reasons, the water level of the device main body 6 is lowered to be lower than the central water pipe 4, a water seal is damaged, the central water pipe 4 is directly exposed in the air, the gravity of condensed water cannot be counteracted by negative pressure gravitation due to the fact that the pipe diameters of the central water pipe 4 and the condensation drain pipe 3 are large, the condensed water can fall down, the air flows in, the air is rapidly fed, pressure balance is restored, continuous drainage of the drain pipe 5 is guaranteed, the situation that the pressure of the box body is changed violently is met, and the safety of the box body structure is guaranteed; and the drainage pipeline 5 can realize normal drainage only by a small pipe diameter, the pipe diameter of the drainage pipeline 5 is calculated according to the project scale, and the project cost is controlled.

It is worth mentioning that: in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; mechanical connection is possible, and a person of ordinary skill in the art can understand the specific meaning of the above terms in the present invention according to specific situations.

It is obvious to a person skilled in the art that the present invention is not restricted to details of the above-described exemplary embodiments, but that it can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a device of sealed negative pressure box drainage which characterized in that: the method comprises the following steps:

the sealed negative pressure box body for treating the malodorous gas comprises a negative pressure fan and a sealed box body, wherein the negative pressure fan is arranged on the positive side surface of the sealed box body, and the bottom of the sealed negative pressure box body is provided with a condensation drain pipe;

the device comprises a device body, wherein the device body is of a semi-open tank body structure, a central water pipe which is connected with the condensation drain pipe in a matched mode is arranged in the middle of the top end of the device body, the bottom of the central water pipe is 2-3cm away from the bottom of the device body, the horizontal drainage pipe is arranged on the side face of the device body, a water outlet of the drainage pipe is higher than the bottom of the central water pipe, and a plurality of air holes are formed in the top ends of the two sides of the central water pipe of the device body.

2. The device for sealing the drainage of the negative pressure tank body according to claim 1, wherein: the sealed negative pressure box body is arranged right above the device main body, and the condensation drain pipe is connected with the central water pipe in a sleeved mode.

3. The device for sealing the drainage of the negative pressure tank body according to claim 1, wherein: the pipeline opening of the condensation drain pipe is in a cutting sawtooth shape.

4. The device for sealing the drainage of the negative pressure tank body according to claim 1, characterized in that: the pipe diameter of the drainage pipeline is smaller than the pipe diameters of the condensation drainage pipe and the central water pipe.