TWI647003B - Tail gas gas-liquid separation device - Google Patents

Abstract

A gas-liquid separation device for exhaust gas includes a gas-liquid inlet pipe, an outer casing pipe, a gas pipe, and a power source. The gas-liquid inlet pipe includes an inlet end and an outlet end with a baffle. The outer tube includes an upper tube portion, an extended tube portion, a lower tube portion, and a top cover. The extension tube portion is sleeved with the gas-liquid inlet tube, so that gas and liquid from the gas-liquid inlet tube can enter the upper tube portion. The gas pipe passes through the top cover, and includes an exposed pipe portion, a hidden pipe portion, a lower inlet, and an upper outlet. The gas-liquid is blocked by the baffle, and flows downward along a spiral path along a gap between the outer tube and the hidden tube portion of the gas tube. Therefore, due to the centrifugal force of the gas-liquid, the water in the gas-liquid is thrown to the inner tube wall of the outer sleeve and adheres to and flows downward, and flows out from the lower outlet of the outer sleeve, and the remaining dry gas flows from The lower inlet of the gas tube enters, and then exits from the upper outlet of the gas tube.

Description

Tail gas gas-liquid separation device

The invention relates to a gas-liquid separation device, in particular to a gas-liquid separation device for tail gas.

Existing exhaust gas treatment equipment can usually use an electric heating unit or a plasma unit to treat the exhaust gas from the front-end manufacturing equipment, and then use an exhaust water washing device to introduce external water sources to wash the treated exhaust gas, and then the washed exhaust gas is assisted by a windmill. The power provided is discharged to the outside world.

Referring to FIG. 1, for example, the exhaust gas washing device 9 introduces an external water source to wash the treated exhaust gas, and then uses the power provided by the windmill 7 to exhaust the washed exhaust gas to the outside by the exhaust device 8. The exhaust device 8 only uses a T-shaped tube 80 to discharge the condensed water downward (as shown in the discharge direction 81), and discharges the gas-liquid mixture upward (as shown in the exhaust direction 82). Because the gas-liquid separation effect of the T-shaped pipe 80 of the exhaust device 8 is not good, the moisture content of the gas-liquid mixture discharged upward is high. Therefore, it is necessary to find a solution.

Therefore, an object of the present invention is to provide a gas-liquid separation device for exhaust gas.

Therefore, the gas-liquid separation device of the tail gas of the present invention is suitable for separating water and liquid from the gas-liquid from the tail gas washing device, and includes a gas-liquid inlet pipe, a jacket pipe, a gas pipe, and a power source. The gas-liquid inlet pipe is used for conveying gas-liquid from the exhaust gas washing device, and includes an inlet end and an outlet end with a baffle. The outer tube includes an upper tube portion having a side opening, an extension tube portion connected to the side opening and extending outward, a lower tube portion having a lower outlet, and a top cover having a perforation, the extension tube portion The gas-liquid inlet pipe is sleeved so that gas-liquid from the gas-liquid inlet pipe can enter the upper tube portion. The gas pipe passes through the perforation of the top cover of the outer tube, and includes an exposed tube portion above the top cover, a hidden tube portion below the top cover, a lower inlet, and an upper outlet. The power source is used to provide power required for the gas-liquid flow. The gas-liquid from the exhaust gas washing device is blocked by the baffle at the outlet end of the gas-liquid inlet pipe, and flows downward in a spiral path along the gap between the outer tube and the hidden tube portion of the gas tube. The gas-liquid flowing downward in a spiral path causes the water-liquid in the gas-liquid to be thrown to the inner tube wall of the outer casing and flows downward due to centrifugal force, and flows out from the lower outlet of the outer casing. And the remaining dry gas enters from the lower inlet of the gas pipe, and then exits from the upper outlet of the gas pipe.

The effect of the present invention is that, because a specially designed outer casing is connected between the gas-liquid inlet pipe and the gas tube, the gas-liquid from the exhaust gas washing device can be passed along the outer casing and the gas pipe. The gap between the hidden tube sections flows downward in a spiral path, so the gas-liquid flowing downward in the spiral path will be thrown into the outer tube by the centrifugal force. The tube wall attaches and flows downward and flows out from the lower outlet of the outer tube, and the remaining dry gas enters from the lower inlet of the gas tube, and then exits from the upper outlet of the gas tube, so the gas-liquid separation effect Excellent.

2 and 3, an embodiment of a gas-liquid separation device for exhaust gas according to the present invention is suitable for separating water and liquid from gas-liquid from an exhaust gas washing device 9, and includes a power source 1, a gas-liquid inlet pipe 2, and an outer casing 3. , A gas pipe 4, at least one spray head 5 (for example, the four spray heads 5 shown in FIGS. 2 and 3), and a cooling layer 6.

The power source 1 is used to provide power required for the gas-liquid flow. In this embodiment, the power source 1 may be, for example, a windmill or the like. As shown in FIGS. 2 and 3, in this embodiment, the power source 1 is disposed between the exhaust gas washing device 9 and the gas-liquid inlet pipe 2. However, the present invention is not limited thereto. For example, in this embodiment, In a variation of the example, the power source 1 may be disposed downstream of the upper outlet 44 of the gas pipe 4. Even in another variation of this embodiment, the power source 1 may be provided at the same time between the exhaust gas washing device 9 and the gas-liquid inlet pipe 2 and downstream of the upper outlet 44 of the gas pipe 4, so as to provide a more powerful Power to achieve better gas-liquid separation.

The gas-liquid inlet pipe 2 is used for conveying gas-liquid from the exhaust gas washing device 9, and includes an inlet end 21 and an outlet end 22 having a blocking piece 221.

The outer tube 3 includes an upper tube portion 31 having a side opening 31 1, an extension tube portion 32 connected to the side opening 31 and extending outward, a lower tube portion 33 having a lower outlet 331, and a perforation 341.顶盖 34。 The top cover 34. The extension pipe portion 32 is sleeved with the gas-liquid inlet pipe 2 so that gas and liquid from the gas-liquid inlet pipe 2 can enter the upper pipe portion 31. In this embodiment, the lower end of the lower tube portion 33 of the outer casing 3 has a bell mouth shape with a wide width and a narrow width.

The gas pipe 4 passes through the perforation 341 of the top cover 34 of the outer tube 3, and includes an exposed tube portion 41 above the top cover 34, a hidden tube portion 42 below the top cover 34, and a lower entrance. 43, and exit 44 above.

The spray head 5 is used to spray air or water into a gap between the outer tube 3 and the hidden tube portion 43 of the gas tube 4. When the spray head 5 sprays air, it can be used to reduce the humidity of the gas-liquid. When the spray head 5 sprays water, it can be used for washing dust and the like.

The cooling layer 6 is arranged on the outer wall surface of the lower tube portion 33 of the outer casing 3, and the temperature of the inner wall surface of the lower tube portion 33 can be reduced by cold water or ice water to accelerate the condensation of water vapor in the gas-liquid into water. Fluid speed.

Therefore, with the present invention, the gas-liquid from the tail gas washing device 9 will be blocked by the baffle 221 of the outlet end 22 of the gas-liquid inlet pipe 2, and along the outer tube 3 and the gas tube The gap between the hidden tube portions 42 of 4 flows downward in a spiral path P. Due to the centrifugal force, the gas-liquid flowing downward in the spiral path P causes the water-liquid in the gas-liquid to be thrown to the inner tube wall of the outer casing 3 to attach and flow downward from the outer tube 3 The lower outlet 331 flows out, and the remaining dry gas enters from the lower inlet 43 of the gas pipe 4, and then exits from the upper outlet 44 of the gas pipe 4.

In summary, the present invention uses a specially designed outer tube 3 to be connected between the gas-liquid inlet tube 2 and the gas tube 4 so that the gas and liquid from the exhaust gas washing device 9 can be routed along the outer tube 3 and the gas tube. The gap between the hidden tube portions 42 of the gas pipe 4 flows downward in a spiral path P, so the gas-liquid flowing downward in the spiral path P will be thrown away by the centrifugal force The inner tube wall of the outer tube 3 is attached and flows downward, and flows out from the lower outlet 331 of the outer tube 3, and the remaining dry gas enters from the lower inlet 43 of the gas tube 4, and then from the lower tube 43. The upper outlet 44 of the gas pipe 4 is discharged, so the gas-liquid separation effect is excellent, and the object of the present invention can be achieved.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, any simple equivalent changes and modifications made according to the scope of the patent application and the contents of the patent specification of the present invention are still Within the scope of the invention patent.

1‧‧‧ Power source

2‧‧‧Gas-liquid inlet tube

21‧‧‧ Entrance

22‧‧‧Export

221‧‧‧baffle

3‧‧‧ Outer tube

31‧‧‧Upper tube department

311‧‧‧side opening

32‧‧‧Extended tube section

33‧‧‧ Lower tube department

331‧‧‧Bottom exit

34‧‧‧Top cover

341‧‧‧perforation

4‧‧‧Gas tube

41‧‧‧Exposed Tube Department

42‧‧‧Hidden tube department

43‧‧‧ entrance below

44‧‧‧Exit above

5‧‧‧ Nozzle

6‧‧‧ cooling layer

9‧‧‧ tail gas washing device

P‧‧‧spiral path

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, wherein: FIG. 1 is a device configuration diagram illustrating a conventional exhaust water washing device, a windmill, and an exhaust device; FIG. 2 is a device A front view of the configuration is used to describe an embodiment of a conventional tail gas washing device and a gas-liquid separation device of the tail gas according to the present invention; and FIG. 3 is a sectional view of a device configuration to explain the embodiment.

Claims (7)

A gas-liquid separation device for tail gas is suitable for separating water and liquid from gas-liquid from tail gas water washing device, and comprises: a gas-liquid inlet pipe for conveying gas-liquid from said tail gas water washing device, including an inlet end and An outlet end with a baffle; an outer sleeve including an upper tube portion with a side opening, an extension tube portion that is connected to the side opening and extends outward, a lower tube portion with a lower outlet, and a top cover with a perforation The extension tube portion is sleeved with the gas-liquid inlet tube so that gas and liquid from the gas-liquid inlet tube can enter the upper tube portion; the gas tube passes through the perforation of the top cover of the outer tube, and It includes an exposed pipe section above the top cover, a hidden pipe section below the top cover, a lower inlet, and an upper outlet; and a power source for providing the power required for the gas-liquid flow; The gas-liquid from the exhaust gas washing device is blocked by a baffle at the outlet end of the gas-liquid inlet pipe, and flows downward along a spiral path along a gap between the outer pipe and a hidden pipe portion of the gas pipe , Wherein said to snail Due to the centrifugal force, the gas-liquid flowing downward in the shape of the path is thrown to the inner tube wall of the outer tube and adheres to the inner tube wall and flows downward to flow out from the lower outlet of the outer tube, and the remaining The dry gas enters from the lower inlet of the gas pipe, and then exits from the upper outlet of the gas pipe. The exhaust gas-liquid separation device according to claim 1, wherein the power source is a windmill. The exhaust gas-liquid separation device according to claim 1, wherein the power source is disposed between the exhaust gas washing device and the gas-liquid inlet pipe. The exhaust gas gas-liquid separation device according to claim 1, wherein the power source is disposed downstream of an upper outlet of the gas pipe. The exhaust gas gas-liquid separation device according to claim 1, wherein the lower end of the lower tube portion of the outer casing has a bell mouth shape with an upper width and a lower width. The gas-liquid separation device for exhaust gas according to claim 1, further comprising at least one spray head provided on a top cover of the outer tube, the spray head being configured to pass between the outer tube and a hidden tube portion of the gas tube. Spray air or water between the gaps. The gas-liquid separation device for exhaust gas according to claim 1, further comprising a cooling layer surrounding the outer wall surface of the lower tube portion of the outer tube, so as to reduce the temperature of the inner wall surface of the lower tube portion by cold water or ice water. To accelerate the condensation of water vapor in the gas-liquid into water-liquid.