Respirator installed on sealed non-volatile liquid tank

Abstract

The invention provides a breather installed on a sealed non-volatile liquid tank. The breather comprises a ventilation attached seat, a first ventilation static plate, a second ventilation static plate, a third ventilation static plate, a ventilation pneumatic plate, a ventilation cap and a fixing bolt. According to the respirator, gas can freely enter and exit from the interior and the exterior of the tank body, when the air pressure in the sealed non-volatile liquid tank changes, the gas enters and exits the respirator through the movable plate of the pneumatic plate, balance of the air pressure inside and outside the non-volatile liquid tank is achieved, and normal work of the tank body is guaranteed; and deformation of the box body due to unbalanced air pressure is prevented. When the non-volatile liquid tank is in a moving state, liquid in the tank is in a shaking state, non-ventilation hole parts of the first ventilation static plate, the second ventilation static plate, the third ventilation static plate and the ventilation pneumatic plate can shield the liquid, and the internal liquid is prevented from overflowing due to transportation vibration of the tank body; and external large-particle dust is prevented from blocking the respirator and entering the tank body to pollute the liquid.

Description

Technical Field

[0001] The invention belongs to the technical field of industrial non-volatile liquid tank design, and in particular relates to a respirator installed on a sealed non-volatile liquid tank. Background Art

[0002] The respirators for non-volatile liquid tanks used in industry often have unbalanced internal and external air pressures during operation, which often leads to "bulging" due to increased internal pressure or failure to discharge the liquid smoothly due to reduced internal pressure. In addition, during transportation, the non-volatile liquid inside the liquid tank body may vibrate due to bumpy roads, which may cause "liquid leakage" through the respirator, and dust in the air may enter the tank body through the respirator, contaminating the liquid working medium. Therefore, in view of the complex structure, high failure rate and high cost of most respirators on the market, it is necessary to design a new type of respirator installed in a sealed non-volatile liquid tank to solve the above technical problems. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The present invention proposes a respirator installed in a sealed non-volatile liquid tank to solve the technical problems of complex structure, high failure rate and high cost of the respirator of the non-volatile liquid tank, as well as how to balance the internal and external air pressures and prevent the internal liquid from overflowing and the external dust from entering.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention proposes a respirator installed on a sealed non-volatile liquid tank, the respirator comprising a ventilation attachment, a first ventilation static plate, a second ventilation static plate, a third ventilation static plate, a ventilation dynamic plate, a ventilation cap and fixing bolts; wherein the ventilation dynamic plate is fixedly installed on the top of the ventilation attachment, and a rotating plate is installed on the side of the center of the circle on the ventilation dynamic plate; the third ventilation static plate is fixedly installed inside the ventilation attachment, and the third ventilation static plate is processed with a plurality of ventilation holes on the half side symmetrical to the rotating plate ; The second ventilation static plate is fixedly installed inside the ventilation attachment, and the second ventilation static plate is processed with several ventilation holes on the same half side as the rotating plate; the first ventilation static plate is fixedly installed at the bottom of the ventilation attachment, and the first ventilation static plate is evenly processed with several ventilation holes on the entire plate; threaded through holes are processed at both ends of the ventilation cap, and two fixing bolts are screwed into the threaded through holes and then screwed into the threaded blind holes on both sides of the ventilation attachment respectively, so as to fix the ventilation cap and the ventilation attachment, and leave a gap at the edge of the ventilation attachment and the ventilation cap.

[0007] Furthermore, the ventilation dynamic plate includes a fixed mortise plate, a rotating plate and a fixed tenon; wherein, the fixed mortise plate is processed with a circular opening located on one side of the center of the circle, the diameter of the rotating plate is smaller than the diameter of the circular opening, the rotating plate is placed in the circular opening through the rotating shafts on both sides, and the two fixed tenons are installed in the mortise grooves of the side walls of the circular opening to limit the rotational freedom of the rotating plate.

[0008] Furthermore, the diameter of the circular opening is smaller than the radius of the fixing mortise plate.

[0009] Further, the distance between the third ventilation static plate and the ventilation dynamic plate is greater than the radius of the rotating plate on the ventilation dynamic plate.

[0010] Furthermore, the distance between the second ventilation static plate and the third ventilation static plate is 0.1 to 0.8 times the diameter of the ventilation attachment.

[0011] Furthermore, the distance between the first ventilation static plate and the second ventilation static plate is 0.1 to 0.8 times the diameter of the ventilation attachment.

[0012] Furthermore, the ventilation holes processed on the second ventilation static plate and the third ventilation static plate are replaced by cutting off half of the entire plate or less than half of the plate, and taking the other half of the plate or most of the half of the plate to fix and install with the ventilation attachment.

[0013] Furthermore, the first ventilation static plate, the second ventilation static plate and the third ventilation static plate are fixedly installed with the ventilation attachment in a vertical manner.

[0014] Furthermore, the first ventilation static plate, the second ventilation static plate and the third ventilation static plate are fixedly installed with the ventilation attachment in an inclined manner.

[0015] Furthermore, the ventilation dynamic plate, the first ventilation static plate, the second ventilation static plate and the third ventilation static plate are welded and fixed to the ventilation attachment seat.

[0016] (III) Beneficial effects

[0017] The present invention proposes a respirator installed on a sealed non-volatile liquid tank, comprising a ventilation attachment, a first ventilation static plate, a second ventilation static plate, a third ventilation static plate, a ventilation movable plate, a ventilation cap and fixing bolts. The respirator of the present invention allows gas to freely enter and exit the inside and outside of the tank body. When the air pressure inside the sealed non-volatile liquid tank changes, the gas enters and exits the respirator through the movable plate of the ventilation movable plate, achieving air pressure balance inside and outside the non-volatile liquid tank, ensuring the normal operation of the tank body, and preventing the tank body from being deformed due to air pressure imbalance. When the non-volatile liquid tank is in motion, the liquid inside the tank is in a shaking state. The non-ventilation hole parts of the first ventilation static plate, the second ventilation static plate, the third ventilation static plate and the ventilation movable plate in the present invention can block the liquid, prevent the internal liquid from overflowing due to the vibration of the tank body during transportation, and prevent large particles of dust from clogging the respirator and entering the tank body to contaminate the liquid. The respirator of the present invention is a purely mechanical structure with only one moving part and the rest being static parts. It has the advantages of simple structure, high reliability, low failure rate, low cost, etc. and has a wide range of application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 An exploded view of a respirator for sealing a non-volatile liquid tank according to the present invention;

[0019] Figure 2 A cross-sectional view of a respirator for sealing a non-volatile liquid tank according to the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the centrally-through pneumatic plate of the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0022] This embodiment proposes a respirator installed in a sealed non-volatile liquid tank, which is used to balance the internal and external air pressures of the sealed non-volatile liquid tank, ensure the normal operation of the tank body, and prevent the internal liquid from overflowing due to vibration and large dust particles from the external air from entering.

[0023] like Figure 1 and 2As shown, the respirator installed in the sealed non-volatile liquid tank mainly includes a ventilation attachment 1, a first ventilation static plate 2, a second ventilation static plate 3, a third ventilation static plate 4, a ventilation moving plate 5 and a ventilation cap 6. Among them, the ventilation moving plate 5 is welded to the top of the ventilation attachment 1, and a rotating plate is installed on the left side of the ventilation moving plate 5. The third ventilation static plate 4 is welded to the inside of the ventilation attachment 1, and the distance between the third ventilation static plate 4 and the ventilation dynamic plate 5 is greater than the radius of the rotating plate on the ventilation dynamic plate 5. The right half of the third ventilation static plate 4 is processed with a number of ventilation holes for gas to enter and exit. The second ventilation static plate 3 is welded to the inside of the ventilation attachment 1, and the distance between the second ventilation static plate 3 and the third ventilation static plate 4 is 0.1 to 0.8 times the diameter of the ventilation attachment 1. The left half of the second ventilation static plate 3 is processed with a number of ventilation holes for gas to enter and exit. The first ventilation static plate 2 is welded to the bottom of the ventilation attachment 1, and the distance between the first ventilation static plate 2 and the second ventilation static plate 3 is 0.1 to 0.8 times the diameter of the ventilation attachment 1. The first ventilation static plate 2 is evenly processed with several ventilation holes on the entire plate to facilitate the entry and exit of gas. Threaded through holes are processed at both ends of the ventilation cap 6. After the two fixing bolts 7 are screwed into the threaded through holes, they are respectively screwed into the threaded blind holes on both sides of the ventilation attachment 1 to fix the ventilation cap 6 to the ventilation attachment 1, and a gap is left at the edge of the ventilation attachment 1 and the ventilation cap 6. The ventilation attachment 1 is processed with a 2mm concave platform in the radial direction from the bottom horizontal plane of the second ventilation static plate 3 to the bottom surface of the ventilation attachment 1, which is convenient for positioning and installation when welding on the box body. When in use, it is welded and installed on the highest top surface of the sealed non-volatile liquid sealing box body.

[0024] like Figure 3 As shown, the ventilation dynamic plate 5 includes a fixed mortise plate 501, a rotating plate 502 and a fixed tenon 503. The fixed mortise plate 501 is processed with a circular opening located on the left side of the center of the circle, the diameter of the circular opening is smaller than the radius of the fixed mortise plate 501, the diameter of the rotating plate 502 is smaller than the diameter of the circular opening on the fixed mortise plate 501, the rotating plate 502 is placed in the circular opening through the rotating shafts on both sides, and the two fixed tenons 503 are installed at the tenon grooves of the side walls of the circular opening to limit the rotational freedom of the rotating plate 502.

[0025] The working principle of the above-mentioned respirator installed in a sealed non-volatile liquid tank is:

[0026] When the working internal pressure of the sealed non-volatile liquid tank decreases, the outside air enters the top of the ventilation attachment 1 through the edge gap between the ventilation attachment 1 and the ventilation cap 6 of the respirator of the present invention, and then passes through the rotating piece 502 on the ventilation moving plate 5, and passes through the third ventilation static plate 4, the second ventilation static plate 3 and the first ventilation static plate 2 in turn, and enters the interior of the tank body to balance the air pressure; when the working internal pressure of the sealed non-volatile liquid tank increases, the internal gas can be discharged to the outside through the first ventilation static plate 2, the second ventilation static plate 3, the third ventilation static plate 4 and the rotating piece 502 on the ventilation moving plate 5 and the edge gap between the ventilation attachment 1 and the ventilation cap 6 in turn.

[0027] When the liquid inside the sealed non-volatile liquid tank oscillates, the non-ventilation hole portions of the first ventilation static plate 2, the second ventilation static plate 3, the third ventilation static plate 4 and the ventilation dynamic plate 5 can block the liquid to prevent the liquid in the tank from directly overflowing through the respirator, and the ventilation hole portions can allow the liquid oscillating in the ventilation attachment 1 to flow back into the tank body; when there are large particles of dust in the outside air, the ventilation cap 6 fixed on the ventilation attachment 1 can block the large particles in the air from entering the interior of the tank through the vents and avoid clogging the vents.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A respirator mounted on a sealed non-volatile liquid tank, characterized in that: The respirator includes a ventilation attachment, a first ventilation static plate, a second ventilation static plate, a third ventilation static plate, a ventilation moving plate, a ventilation cap and fixing bolts; wherein the ventilation moving plate is fixedly installed on the top of the ventilation attachment, and a rotating plate is installed on the ventilation moving plate on the side of the center of the circle; the third ventilation static plate is fixedly installed on the inside of the ventilation attachment, and the third ventilation static plate is processed with several ventilation holes on the half side symmetrical to the rotating plate; the second ventilation static plate is fixedly installed on the inside of the ventilation attachment, and the second ventilation static plate is processed with several ventilation holes on the same half side as the rotating plate; the first ventilation static plate is fixedly installed on the bottom of the ventilation attachment, and the first ventilation static plate is evenly processed with several ventilation holes on the entire plate; threaded through holes are processed on both ends of the ventilation cap, and two fixing bolts are screwed into the threaded through holes and then screwed into the threaded blind holes on both sides of the ventilation attachment, so as to fix the ventilation cap to the ventilation attachment, and leave a gap at the edge of the ventilation attachment and the ventilation cap.

2. A respirator mounted on a sealed non-volatile liquid tank as claimed in claim 1, characterized in that: The ventilation dynamic plate includes a fixed mortise plate, a rotating plate and a fixed tenon; wherein, the fixed mortise plate is processed with a circular opening located on one side of the center of the circle, the diameter of the rotating plate is smaller than the diameter of the circular opening, the rotating plate is placed in the circular opening through the rotating shafts on both sides, and the two fixed tenons are installed in the mortise grooves of the side walls of the circular opening to limit the rotational freedom of the rotating plate.

3. A respirator mounted on a sealed non-volatile liquid tank as claimed in claim 2, characterized in that: The diameter of the circular opening is smaller than the radius of the fixing mortise plate.

4. A respirator mounted on a sealed non-volatile liquid tank as claimed in claim 1, characterized in that: The distance between the third ventilation static plate and the ventilation dynamic plate is greater than the radius of the rotating plate on the ventilation dynamic plate.

5. A respirator mounted on a sealed non-volatile liquid tank as claimed in claim 1, characterized in that: The distance between the second ventilation static plate and the third ventilation static plate is 0.1 to 0.8 times the diameter of the ventilation attachment.

6. A respirator mounted on a sealed non-volatile liquid tank as claimed in claim 1, characterized in that: The distance between the first ventilation static plate and the second ventilation static plate is 0.1 to 0.8 times the diameter of the ventilation attachment.

7. A respirator mounted on a sealed non-volatile liquid tank as claimed in claim 1, characterized in that: The ventilation holes processed on the second ventilation static plate and the third ventilation static plate are replaced by cutting off half of the entire plate or less than half of the plate, and taking the other half of the plate or more of the half of the plate to fix and install with the ventilation attachment.

8. The respirator mounted on a sealed non-volatile liquid tank as claimed in claim 1, characterized in that: The first ventilation static plate, the second ventilation static plate and the third ventilation static plate are fixedly installed with the ventilation attachment in a vertical manner.

9. A respirator mounted on a sealed non-volatile liquid tank as claimed in claim 1, characterized in that: The first ventilation static plate, the second ventilation static plate and the third ventilation static plate are fixedly installed with the ventilation attachment in an inclined manner.

10. A respirator mounted on a sealed non-volatile liquid tank as claimed in claim 1, characterized in that: The ventilation dynamic plate, the first ventilation static plate, the second ventilation static plate and the third ventilation static plate are welded and fixed to the ventilation attachment seat.

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