Water curtain cooling device

Abstract

The utility model discloses a water curtain cooling device, including from inside to outside coaxial setting's combustion chamber, water curtain cooling chamber and water collecting chamber, and the combustion chamber is provided with plasma torch and air inlet, and the water collecting chamber is provided with water inlet, the inner chamber wall of water curtain cooling chamber is provided with the water distribution chamber of intercommunication water collecting chamber, and the bottom of water distribution chamber is water distribution structure area, and the top of water collecting chamber is closed structure area, and the closed structure area forms the upper temperature insulation interval with the combustion chamber, and the water distribution chamber forms the lower temperature insulation interval with the combustion chamber. The upper temperature insulation body is arranged in the upper temperature insulation interval, and the lower temperature insulation body is arranged in the lower temperature insulation interval. The utility model discloses through with water collecting chamber and water distribution chamber respectively with the combustion chamber prevents heat transfer's isolation, can reduce the heat loss of combustion chamber, guarantees the high efficiency of tail gas high temperature processing.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the cooling technical field of tail gas high temperature treatment especially relates to a water curtain cooling device. BACKGROUND

[0002] Water curtain cooling can reduce the temperature of tail gas in the process of plasma water washing type tail gas treatment, because there is overflow port between water curtain cooling cavity and combustion chamber, that is, water curtain forming port, water overflow will contact with the outer wall of the combustion chamber in the process, thereby according to heat transfer effect, a part of the temperature of the combustion chamber will be taken away, so that the temperature in the combustion chamber exists heat loss, and further, the efficiency of tail gas high temperature treatment is reduced. SUMMARY

[0003] The utility model discloses a water curtain cooling device, which can reduce the heat loss of the combustion chamber by isolating the water collecting cavity and the water distribution cavity from the combustion chamber to prevent heat transfer, thereby ensuring the efficiency of tail gas high temperature treatment.

[0004] Technical scheme: To achieve the above object, the utility model discloses a water curtain cooling device, which comprises a combustion chamber, a water curtain cooling cavity and a water collecting cavity arranged coaxially from inside to outside, the combustion chamber is provided with a plasma torch and an air inlet, and the water collecting cavity is provided with a water inlet.

[0005] The inner cavity wall of the water curtain cooling cavity is provided with a water distribution cavity communicating with the water collecting cavity at the upper end, the bottom of the water distribution cavity is a water distribution structure area, the top of the water collecting cavity is a closed structure area, an upper heat insulation distance is formed between the closed structure area and the combustion chamber, and a lower heat insulation distance is formed between the water distribution cavity and the combustion chamber.

[0006] Further, an upper heat insulation body is arranged in the upper heat insulation distance, and the upper heat insulation body fills the space of the upper heat insulation distance.

[0007] Further, a lower heat insulation body is arranged in the lower heat insulation distance, and the lower heat insulation body fills the space of the lower heat insulation distance.

[0008] Further, the upper heat insulation body and the lower heat insulation body have different heat insulation performance, and the heat insulation performance of the upper heat insulation body is stronger than that of the lower heat insulation body.

[0009] Further, the bottom of the water distribution cavity is provided with water distribution holes, a plurality of water distribution holes are arranged in a circular array to form a group of water curtain water distribution hole units, the water distribution holes are arranged in a plurality of circles to form a plurality of groups of concentric water curtain water distribution hole units, and the bottom of the water distribution cavity with the plurality of groups of water curtain water distribution hole units constitutes the water distribution structure area.

[0010] Furthermore, a water inlet is provided on the shared cavity wall of the water collection cavity and the water distribution cavity, and the water collection cavity is connected to the water distribution cavity through the water inlet.

[0011] Furthermore, it includes a combustion shell, a water curtain cooling shell, a water collecting shell, and a water distributing shell. The internal space of the combustion shell is the combustion chamber. The water curtain cooling shell and the combustion shell are positioned to form the water curtain cooling chamber. The water collecting shell and the water curtain cooling shell are positioned to form the water collecting chamber. The water distributing shell and the water curtain cooling shell are positioned to form the water distributing chamber. The water collecting shell and the water distributing shell share a common water curtain cooling shell to form a water curtain cooling shell assembly. The combustion shell is fixedly installed relative to the water curtain cooling shell assembly through a connector.

[0012] Beneficial effects: This utility model isolates the water collection chamber and the water distribution chamber from the combustion chamber to prevent heat transfer, thereby avoiding water contacting the outer wall of the combustion chamber and taking away some of the temperature during the formation of the water curtain, solving the problem of large heat loss in the combustion chamber due to water curtain contact. In order to further improve the heat insulation effect, the heat insulation gap is filled with a heat exchanger to ensure the thoroughness and efficiency of high-temperature treatment of exhaust gas. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] like Figure 1 As shown, a water curtain cooling device includes a combustion chamber 1, a water curtain cooling chamber 2, and a water collection chamber 3 arranged coaxially from the inside to the outside. The combustion chamber 1 is equipped with a plasma torch 4 and an air inlet 10, and the water collection chamber 3 is equipped with a water inlet 5. A water distribution chamber 6, communicating with the water collection chamber 3, is provided at the upper end of the inner wall of the water curtain cooling chamber 2. The bottom of the water distribution chamber 6 is a water distribution structure area 6a, and the top of the water collection chamber 3 is a closed structure area 3a. An upper heat insulation gap 7 is formed between the closed structure area 3a and the combustion chamber 1, and a lower heat insulation gap 8 is formed between the water distribution chamber 6 and the combustion chamber 1. More specifically, an upper heat insulation body 70 is provided within the upper heat insulation gap 7, filling the space of the upper heat insulation gap 7. A lower heat insulation body 80 is provided within the lower heat insulation gap 8, filling the space of the lower heat insulation gap 8. This invention isolates the water collection chamber 3 and the water distribution chamber 6 from the combustion chamber 1 to prevent heat transfer, thereby avoiding water contacting the outer wall of the combustion chamber 1 during the water curtain formation process and carrying away some of the temperature. This solves the problem of large heat loss in the combustion chamber 1 due to water curtain contact. In order to further improve the heat insulation effect, the insulation gap is filled with a heat exchanger to ensure the thoroughness and efficiency of high-temperature treatment of exhaust gas.

[0016] The upper temperature insulation body 70 and the lower temperature insulation body 80 are made of heat insulation materials, and since the temperature of the root to the head of the plasma flame generated by the plasma torch 4 in the combustion chamber 1 is generally reduced, in order to reduce the input cost of the heat insulation materials, in the utility model, the temperature insulation performance difference exists between the upper temperature insulation body 70 and the lower temperature insulation body 80, and the heat insulation performance of the upper temperature insulation body 70 is stronger than that of the lower temperature insulation body 80.

[0017] As shown in Figure 1 The water collecting cavity 3 is communicated with the water distribution cavity 6 through the water inlet 9. The bottom of the water distribution cavity 6 is provided with water distribution holes 60, and a plurality of water distribution holes 60 are arranged in a circular array to form a water curtain water distribution hole unit, and a plurality of water distribution hole units are arranged to form a plurality of concentric water curtain water distribution hole units. The bottom of the water distribution cavity 6 with a plurality of water curtain water distribution hole units constitutes the water distribution structure area 6a. Water is sprayed from the water distribution holes 60 to form downward water columns, and water columns of the same circle form an annular water curtain. A plurality of annular water curtains can be formed by a plurality of water curtain water distribution hole units, so that the tail gas can be fully contacted with the water curtain, and the efficiency of the water curtain cooling of the tail gas is improved.

[0018] The utility model discloses a combustion shell 1b, water curtain cooling shell 2b, water collecting shell 3b and water distribution shell 6b, and the inside space of combustion shell 1b is combustion chamber 1, and the water curtain cooling cavity 2 is formed between water curtain cooling shell 2b and combustion shell 1b, and the water collecting cavity 3 is formed between water collecting shell 3b and water curtain cooling shell 2b, and the water distribution cavity 6 is formed between water distribution shell 6b and water curtain cooling shell 2b, and the water curtain cooling shell assembly is constituted by water curtain cooling shell 2b shared between water collecting shell 3b and water distribution shell 6b, and combustion shell 1b is fixedly installed relative to water curtain cooling shell assembly through connecting piece, and the connecting piece is preferably internal hexagonal screw.

[0019] The above only is the preferred implementation mode of the utility model, and it should be pointed out that for ordinary skilled person in the prior art, on the premise of not departing from the principle of the utility model, still can make a number of improvements and refinements, and these improvements and refinements also should be regarded as the protection scope of the utility model.

Claims

1. A water curtain cooling device, comprising a combustion cavity (1), a water curtain cooling cavity (2) and a water collecting cavity (3) arranged coaxially from inside to outside, the combustion cavity (1) is provided with a plasma torch (4) and an air inlet (10), the water collecting cavity (3) is provided with a water inlet (5); characterized in that An inner cavity wall of the water curtain cooling cavity (2) is provided with a water distribution cavity (6) communicated with the water collecting cavity (3), a bottom of the water distribution cavity (6) is a water distribution structure area (6a), a top of the water collecting cavity (3) is a closed structure area (3a), an upper heat insulation interval (7) is formed between the closed structure area (3a) and the combustion cavity (1), and a lower heat insulation interval (8) is formed between the water distribution cavity (6) and the combustion cavity (1).

2. A water curtain cooling device according to claim 1, characterized in that: An upper heat insulation body (70) is arranged in the upper heat insulation interval (7), and the upper heat insulation body (70) fills the space of the upper heat insulation interval (7).

3. A water curtain cooling device according to claim 2, characterised in that: A lower heat insulation body (80) is arranged in the lower heat insulation interval (8), and the lower heat insulation body (80) fills the space of the lower heat insulation interval (8).

4. A water curtain cooling device according to claim 3, wherein: There is a difference in heat insulation performance between the upper heat insulation body (70) and the lower heat insulation body (80), and the heat insulation performance of the upper heat insulation body (70) is stronger than that of the lower heat insulation body (80).

5. A water curtain cooling device according to claim 1, characterized in that: A water distribution hole (60) is arranged at the bottom of the water distribution cavity (6), a plurality of water distribution holes (60) are arranged in a circumferential array to form a group of water curtain water distribution hole units, the water distribution holes (60) are arranged in a plurality of circles to form a plurality of groups of concentric water curtain water distribution hole units, and the bottom of the water distribution cavity (6) with the plurality of groups of water curtain water distribution hole units constitutes the water distribution structure area (6a).

6. A water curtain cooling device according to claim 1, characterized in that: A water inlet (9) is arranged on a cavity wall shared by the water collecting cavity (3) and the water distribution cavity (6), and the water collecting cavity (3) is communicated with the water distribution cavity (6) through the water inlet (9).

7. A water curtain cooling device according to claim 1, characterized in that: The water curtain cooling device further comprises a combustion shell (1b), a water curtain cooling shell (2b), a water collecting shell (3b) and a water distribution shell (6b), an inner space of the combustion shell (1b) is the combustion cavity (1), the water curtain cooling cavity (2) is formed by limiting between the water curtain cooling shell (2b) and the combustion shell (1b), the water collecting cavity (3) is formed by limiting between the water collecting shell (3b) and the water curtain cooling shell (2b), the water distribution cavity (6) is formed by limiting between the water distribution shell (6b) and the water curtain cooling shell (2b), the water curtain cooling shell (2b) shared by the water collecting shell (3b) and the water distribution shell (6b) constitutes a water curtain cooling shell assembly, and the combustion shell (1b) is fixedly installed relative to the water curtain cooling shell assembly through a connecting piece.

Images