An automatic exhaust protection system for circulating water

Abstract

The present invention discloses an automatic exhaust protection system for circulating water, which includes a cooling circulating water tank. The cooling circulating water tank is connected to a pressure water pipe, the pressure water pipe is connected to a water cooler, the water cooler is connected to a return water pipe, and the return water pipe is connected to the cooling circulating water tank. An air inlet pipe is connected to the pressure water pipe, the air inlet pipe is connected to a compressed air source, a first valve is provided on the air inlet pipe, and an automatic exhaust device is provided on the return water pipe. The automatic exhaust protection system for circulating water of the present invention belongs to the technical field of oven cooling. By introducing a compressed air source to remove the residual water in the water cooler and adding an automatic exhaust device to discharge the gas, the problem of gas entering the circulating water path is solved, and it has the advantages of low cost, simple structure, and high reliability.

Description

Technical Field

[0001] The present invention relates to oven cooling technology, and more specifically, it relates to a circulating water automatic exhaust protection system. Background Art

[0002] In the current circulating water path system of the oven water cooling structure, before the oven starts to heat up, the residual water in the water cooler needs to be drained to prevent the residual water vapor from absorbing heat after the oven heats up, increasing the energy consumption of the oven; when the oven is quickly cooled and cooling water is introduced into the water cooler, part of the cooling water will instantly evaporate into high-pressure water vapor and be discharged outwards. The gases generated in the above two cases enter the circulating water path, resulting in the failure and shutdown of the circulating cooling water system, causing the peripheral equipment to malfunction due to lack of water supply. Summary of the Invention

[0003] The technical problem to be solved by the present invention is in view of the above-mentioned deficiencies of the prior art. The object of the present invention is to provide a circulating water automatic exhaust protection system that can solve the above problems.

[0004] To achieve the above object, the present invention provides a circulating water automatic exhaust protection system, including a cooling circulation water tank, the cooling circulation water tank is connected to a pressure water pipe, the pressure water pipe is connected to a water cooler, the water cooler is connected to a return water pipe, the return water pipe is connected to the cooling circulation water tank, an air inlet pipe is connected to the pressure water pipe, the air inlet pipe is connected to a compressed air source, a first valve is provided on the air inlet pipe, and an automatic exhaust device is provided on the return water pipe.

[0005] Further, the automatic exhaust device includes a cylinder vertically arranged on the return water pipe, a first partition plate is provided in the cylinder, and a first float valve is provided below the first partition plate. A vent hole is provided on the first partition plate. A first positioning rod passing through the first partition plate is provided on the first float valve. An inlet water pipe extending below the first float valve is provided in the cylinder, and the bottom of the cylinder is narrowed to form a water outlet.

[0006] Furthermore, a first convex block is provided on the first positioning rod.

[0007] As a further improvement, a second partition plate is provided above the first partition plate. A second vent hole is provided on the second partition plate. A second float valve is provided between the first partition plate and the second partition plate. A second positioning rod passing through the second partition plate is provided on the second float valve.

[0008] Furthermore, a through hole adapted to the first positioning rod is provided in the second positioning rod.

[0009] Furthermore, a second convex block is provided on the second positioning rod.

[0010] Further, a second check valve is provided on one side of the pressure water pipe away from the air inlet pipe and the water cooler, and a second valve is provided on the pressure water pipe between the second check valve and the air inlet pipe.

[0011] Further, a first check valve is provided on one side of the return water pipe away from the automatic air exhaust device and the water cooler.

[0012] Beneficial effects

[0013] Compared with the prior art, the advantages of the present invention are as follows:

[0014] The automatic air exhaust protection system for circulating water of the present invention solves the problem of gas entering the circulating water path by connecting a compressed air source and an automatic air exhaust device, using the compressed air source to blow out the residual water in the water cooler, and the residual water re-enters the return water pipeline through the automatic air exhaust device, and the high-pressure water vapor and the compressed air source are both discharged from the automatic air exhaust device. It has the advantages of low cost, simple structure and high reliability. Description of the drawings

[0015] Figure 1 is a schematic structural diagram of the automatic air exhaust protection system for circulating water of the present invention;

[0016] Figure 2 is a schematic structural diagram of the automatic air exhaust device of the automatic air exhaust protection system for circulating water of the present invention;

[0017] In the figure: 1, cooling circulating water tank; 2, pressure water pipe; 3, water cooler; 4, return water pipe; 5, air inlet pipe; 6, compressed air source; 7, first valve; 8, automatic air exhaust device; 9, cylinder; 10, first partition; 11, first floating valve; 12, first air guide hole; 13, first positioning rod; 14, water inlet pipe; 15, water outlet; 16, second partition; 17, second air guide hole; 18, second floating valve; 19, second positioning rod; 20, through hole; 21, second check valve; 22, second valve; 23, first check valve; 24, first convex block; 25, second convex block. Specific embodiments

[0018] The following will describe in detail the specific embodiments of the present invention with reference to the drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0019] Such as Figure 1-2As shown in the figure, an automatic exhaust protection system for circulating water includes a cooling circulating water tank 1. The cooling circulating water tank 1 is connected to a pressure water pipe 2. The pressure water pipe 2 is connected to a water cooler 3. The water cooler 3 is connected to a return water pipe 4. The return water pipe 4 is connected to the cooling circulating water tank 1. An air inlet pipe 5 is connected to the pressure water pipe 2. The air inlet pipe 5 is connected to a compressed air source 6. A first valve 7 is provided on the air inlet pipe 5. An automatic exhaust device 8 is provided on the return water pipe 4. When draining the residual water, the first valve 7 on the compressed air source 6 is opened, and the compressed air blows out the residual water in the pipeline of the water cooler 3. The residual water and the compressed air enter the automatic exhaust device 8, and the automatic flapper device 8 discharges the gas and merges the residual water into the return water pipeline. When the oven is rapidly cooled and cooling water is passed into the water cooler 3, part of the cold water will instantaneously evaporate to form high-pressure water vapor and be discharged outward. The cooling water and the water vapor enter the automatic exhaust device 8, and the automatic flapper device 8 discharges the water vapor and merges the cooling water into the return water pipeline.

[0020] In this embodiment, the automatic exhaust device 8 includes a cylinder 9 vertically arranged on the return water pipe 4, a first partition 10 provided in the cylinder 9, and a first floating valve 11 provided below the first partition 10. A plurality of first air guide holes 12 are evenly provided on the first partition 10. A first positioning rod 13 passing through the first partition 10 is provided on the first floating valve 11. A water inlet pipe 14 extending below the first floating valve 11 is provided in the cylinder 9. The bottom of the cylinder 9 is narrowed to be provided with a water outlet 15. The size of the first floating valve 11 is slightly smaller than the size of the first partition 10. The positions of the first air guide holes 12 are all above the first floating valve 11. The gas and the cooling water in the water cooler 3 enter the cylinder 9 from the water inlet pipe 14. The air in the water circuit is discharged from the first air guide holes 12. The cooling water is merged into the return water pipe 4 from the water outlet 15 at the bottom of the cylinder 9. After all the air in the water circuit is discharged, the water flow is controlled to increase, the water level rises and the first floating valve 11 is lifted to block the first air guide holes 12 on the first partition 10, preventing the water from gushing upward.

[0021] In this embodiment, a first convex block 24 is provided on the first positioning rod 13. The first convex block 24 limits the downward sliding distance of the first positioning rod 13.

[0022] In this embodiment, a second partition 16 is provided above the first partition 10. A plurality of second air guide holes 17 are evenly provided on the second partition 16. A second floating valve 18 is provided between the first partition 10 and the second partition 16. A second positioning rod 19 passing through the second partition 16 is provided on the second floating valve 18. If the water flow fluctuates and causes the first floating valve 11 to fail, the water slowly rises through the first air guide holes 12, lifts the second floating valve 18 to block the second air guide holes 17 on the second partition 16, preventing the water from gushing upward.

[0023] In this embodiment, a through hole 20 adapted to the first positioning rod 13 is provided in the second positioning rod 19; the existence of the through hole 20 allows the first positioning rod 13 and the second positioning rod 19 to coincide to a certain extent, reducing the height of the cylinder 9.

[0024] In this embodiment, a second convex block 25 is provided on the second positioning rod 19; the second convex block 25 limits the distance that the second positioning rod 19 slides downward.

[0025] In this embodiment, a second one-way valve 21 is provided on the side of the pressure water pipe 2 away from the air inlet pipe 5 and the water cooler 3, and a second valve 22 is provided on the pressure water pipe 2 between the second one-way valve 21 and the air inlet pipe 5; the second one-way valve 21 is to prevent water or gas in the compressed air source 6 from flowing backward when paralleled with the circulating water systems of other ovens, and the second valve 22 enables the water flow rate of the circulating water system of one oven to be controlled independently without affecting the operation of the circulating water systems of other ovens.

[0026] In this embodiment, a first one-way valve 23 is provided on the side of the return water pipe 4 away from the automatic exhaust device 8 and the water cooler 3; the first one-way valve 23 is to prevent, when paralleled with the circulating water systems of other ovens, the water pressure in the return water pipeline of the circulating water system of other ovens from being greater than the water pressure in the return water pipeline of the circulating water system of this oven, resulting in the water flow of the circulating water path of other ovens flowing into the water path of this oven.

[0027] Working principle:

[0028] When discharging the residual water, the first valve 7 on the compressed air source 6 is opened, and the compressed air blows out the residual water in the pipeline of the water cooler 3. The residual water and the compressed air enter the automatic exhaust device 8, and the automatic slicer device 8 discharges the gas, and the residual water is incorporated into the return water pipeline; when cooling water is introduced into the water cooler 3 for the oven to rapidly cool down, part of the cold water will instantly evaporate to form high-pressure water vapor and be discharged outward. The gas and the cooling water in the water cooler 3 enter the cylinder 9 from the water inlet pipe 14, and the air in the water path is discharged from the first air guide hole 12. The cooling water converges into the return water pipe 4 from the water outlet 15 at the bottom of the cylinder 9. After all the air in the water path is discharged, the second valve 22 is controlled to increase the water flow, and the water level rises to lift the first floating valve 11 to block the first air guide hole 1 on the first partition 10. If the first floating valve 11 fails due to water flow fluctuations, the water slowly rises through the first air guide hole 12 and lifts the second floating valve 18 to block the second air guide hole 17 on the second partition 16, preventing the water from gushing out upward. The circulating water automatic exhaust protection system of the present invention solves the problem of gas entering the circulating water path by connecting a compressed air source and an automatic exhaust device, using the compressed air source to blow out the residual water in the water cooler, and the residual water enters the return water pipeline again through the automatic exhaust device, and both the high-pressure water vapor and the compressed air source are discharged from the automatic exhaust device, and has the advantages of low cost, simple structure, and high reliability.

[0029] The above are only the preferred embodiments of the present invention. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the implementation effect of the present invention and the practicability of the patent.

Claims

1. An automatic exhaust protection system for circulating water, comprising a cooling circulating water tank (1), wherein the cooling circulating water tank (1) is connected with a pressure water pipe (2), the pressure water pipe (2) is connected with a water cooler (3), the water cooler (3) is connected with a return water pipe (4), and the return water pipe (4) is connected with the cooling circulating water tank (1). It is characterized in that, An air inlet pipe (5) is connected to the pressure water pipe (2). The air inlet pipe (5) is connected to a compressed air source (6). A first valve (7) is provided on the air inlet pipe (5). An automatic exhaust device (8) is provided on the return water pipe (4). The automatic exhaust device (8) includes a cylinder (9) vertically arranged on the return water pipe (4), a first partition plate (10) provided in the cylinder (9), and a first floating valve (11) provided below the first partition plate (10). A plurality of first air guide holes (12) are evenly provided on the first partition plate (10). A first positioning rod (13) passing through the first partition plate (10) is provided on the first floating valve (11). A water inlet pipe (14) extending below the first floating valve (11) is provided in the cylinder (9). The bottom of the cylinder (9) is narrowed to form a water outlet (15).

2. The automatic exhaust protection system for circulating water according to claim 1, characterized in that, A first convex block (24) is provided on the first positioning rod (13).

3. The automatic exhaust protection system for circulating water according to claim 1, wherein A second partition plate (16) is provided above the first partition plate (10). A plurality of second air guide holes (17) are evenly provided on the second partition plate (16). A second floating valve (18) is provided between the first partition plate (10) and the second partition plate (16). A second positioning rod (19) passing through the second partition plate (16) is provided on the second floating valve (18).

4. The automatic exhaust protection system for circulating water according to claim 3, characterized in that, A through hole (20) adapted to the first positioning rod (13) is provided in the second positioning rod (19).

5. The automatic exhaust protection system for circulating water according to claim 3, wherein, A second convex block (25) is provided on the second positioning rod (19).

6. The automatic exhaust protection system for circulating water according to claim 1, characterized in that A second one-way valve (21) is provided on the pressure water pipe (2) on the side away from the air inlet pipe (5) and the water cooler (3). A second valve (22) is provided on the pressure water pipe (2) between the second one-way valve (21) and the air inlet pipe (5).

7. The automatic exhaust protection system for circulating water according to claim 1, characterized in that A first one-way valve (23) is provided on the return water pipe (4) on the side away from the automatic exhaust device (8) and the water cooler (3).

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