Pipeline type high-temperature waste gas cooling treatment device

Abstract

The utility model provides a pipeline type high-temperature waste gas cooling treatment device. The pipeline type high-temperature waste gas cooling treatment device comprises a pipeline body, two water removal layers located in the pipeline body and a cooling medium flow channel located between the two water removal layers. Wherein the pipeline body is of a horizontal pipeline type structure, the two water removal layers are located on the front section and the rear section in the pipeline body respectively, and the cooling medium flow channel comprises a plurality of rows of condensation pipes arranged along the horizontal axis of the pipeline body and cooling media introduced into the condensation pipes. The water removal layer and the cooling medium flow channel are arranged in the pipeline main body, so that high-temperature waste gas can be quickly and efficiently cooled, dry low-temperature waste gas can be obtained, a large amount of water does not need to be consumed, and the device has the advantages of being good in cooling effect, low in energy consumption, stable in operation and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment and heat exchange, and in particular relates to a pipeline type high-temperature waste gas cooling treatment device. Background Art

[0002] In the production process of chemical industry or environmental protection treatment plant, high-temperature organic waste gas will inevitably be discharged, usually at a temperature above 200°C. Chinese patent document CN209286990U discloses a cooling and purification device for high-temperature waste gas, in which a cooling pipe 5 connected to the washing tower body 3 is vertically arranged next to the washing tower body 3, an air inlet 9 is arranged at the top of the cooling pipe 5, and 4 cooling nozzles 10 arranged from top to bottom are arranged inside the cooling pipe 5. The cooling function of the device is mainly realized by the cooling pipe 5. When the high-temperature waste gas enters the cooling pipe 5, the cooling nozzle 10 sprays cold water at a high speed, collides with the air flow, and a strong mass transfer effect occurs between the gas and liquid phases. The water flowing down the cooling pipe 5 accepts the temperature of the gas heat, and in this way, the purpose of cooling the high-temperature waste gas is achieved.

[0003] However, this traditional method of cooling and purifying high-temperature exhaust gas often has problems such as poor cooling effect, large water consumption, high energy consumption, unstable operation, etc., and cannot meet the requirements of modern industrial production for environmental protection and energy efficiency.

[0004] Therefore, developing an efficient and stable high-temperature exhaust gas cooling device has important practical significance and application value. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a pipeline type high-temperature exhaust gas cooling treatment device.

[0006] To achieve the above purpose, the solution adopted by the utility model is as follows:

[0007] The utility model provides a pipeline-type high-temperature exhaust gas cooling treatment device, comprising a pipeline main body, two dewatering layers located in the pipeline main body, and a cooling medium flow channel located between the two dewatering layers; wherein the pipeline main body is a horizontal pipeline structure, the two dewatering layers are respectively located in the front section and the rear section of the pipeline main body, and the cooling medium flow channel comprises several rows of condensing tubes arranged along the horizontal axis of the pipeline main body and the cooling medium passed into the condensing tubes.

[0008] Preferably, the pipe body is provided with a high-temperature exhaust gas inlet located at the front of the pipe body and a low-temperature exhaust gas outlet located at the rear of the pipe body.

[0009] Preferably, at the bottom of the pipeline body, at the positions of the two water removal layers, at least one first liquid discharge port is respectively provided.

[0010] Preferably, a funnel-shaped liquid collecting device is provided at the bottom of the pipeline body, located at the position of the cooling medium flow channel, and a second liquid drain port is provided at the bottom of the liquid collecting device.

[0011] Preferably, a steam outlet is provided at the top of the pipeline body, at a position between the cooling medium flow channel and the water removal layer of the rear section.

[0012] Preferably, the two water removal layers are stainless steel wire meshes.

[0013] Preferably, the condensing tubes in each row are in a curved wave shape.

[0014] Preferably, the inner wall of the pipeline body is covered with a corrosion-resistant material layer to prevent harmful substances in the exhaust gas from corroding or clogging the pipeline.

[0015] Preferably, a heat-insulating layer is provided on the outer wall of the pipe body to reduce heat loss.

[0016] Beneficial Effects

[0017] The utility model provides a pipeline high-temperature exhaust gas cooling treatment device, which can achieve rapid and efficient cooling treatment of high-temperature exhaust gas by arranging a dewatering layer and a cooling medium flow channel in the pipeline body, and can obtain dry low-temperature exhaust gas without consuming a large amount of water. It has the advantages of good cooling effect, low energy consumption, stable operation, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the pipeline type high-temperature exhaust gas cooling treatment device involved in the utility model.

[0019] Figure 2 It is a structural schematic diagram of the water removal layer of the pipeline type high-temperature exhaust gas cooling treatment device involved in the utility model.

[0020] Figure 3 The utility model is a schematic diagram of the structure of the condenser tube of the pipeline type high-temperature exhaust gas cooling treatment device. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] To this end, the following solutions are proposed:

[0028] See also Figure 2The utility model provides a pipeline-type high-temperature exhaust gas cooling treatment device, comprising a pipeline body 1, two dehydration layers 2 located in the pipeline body 1, and a cooling medium flow channel 3 located between the two dehydration layers 2. The pipeline body 1 is a horizontal pipeline structure, and the two dehydration layers 2 are respectively located in the front section and the rear section of the pipeline body 1. In some embodiments, the pipeline body 1 is provided with a high-temperature exhaust gas inlet 11 located in the front part of the pipeline body 1 and a low-temperature exhaust gas exhaust port 12 located in the rear part of the pipeline body 1. Among the two dehydration layers 2, one dehydration layer 2 located in the front section of the pipeline body 1 is close to the inlet 11, and the other dehydration layer 2 located in the rear section of the pipeline body 1 is close to the exhaust port 12. In some embodiments, the two dehydration layers 2 are composed of stainless steel wire mesh. Figure 2 A schematic diagram of the structure of the water removal layer 2 composed of a stainless steel wire mesh is given. The specifications of the stainless steel wire mesh can be varied, the wire diameter range can be between 0.10mm-0.55mm, and the commonly used wire diameter is, for example, 0.20mm-0.25mm. The opening size ranges from (2×3)mm to (12×6)mm, which can be adjusted according to needs. The stainless steel wire mesh can be woven in a mat-type plain weave (such as Figure 2 The structure shown in the figure) is a combination of multiple layers of such structures to form a frame structure. Through the filtering, demisting and dehydrating effects of the frame structure, the water vapor in the gas is condensed into droplets and removed, thereby achieving purification of the exhaust gas.

[0029] In the pipeline type high temperature exhaust gas cooling treatment device of the utility model, the cooling medium flow channel 3 includes a plurality of rows of condensing tubes 31 arranged along the horizontal axis of the pipeline body 1 (for example, Figure 1 In a specific embodiment, in order to increase the contact area between the high-temperature exhaust gas and the condenser tube, each row of condenser tubes 31 is designed to be curved and wavy (such as Figure 3 As shown). Through this curved wave-like arrangement, the length of the pipeline and the condensation area are increased, thereby improving the condensation efficiency. The curved wave-like pipeline design can also slow down the flow rate of gas or liquid, reducing the possibility of liquid solidifying in the pipeline of the condenser tube 31 after condensation. The external coolant circulates back and forth in the condenser tube 31 and undergoes a phase change process to absorb the heat of the surrounding high-temperature gas. Figure 3 As shown, the condenser 31 includes a curved wave-shaped condenser body 311 and two connecting ends 312 that can be connected by flanges or threads, and the two connecting ends 312 are respectively a coolant inlet and a coolant outlet.

[0030] By introducing a cooling medium into the condenser tube 31, when the high-temperature exhaust gas passing through the pipe body 1 encounters the condenser tube 31, the cooling medium in the condenser tube 31 exchanges heat with the high-temperature exhaust gas, which can quickly cool down and condense the high-temperature exhaust gas. Common cooling media include: water, air, refrigerant or other special media such as liquid metal sodium, liquid hydrogen, liquid oxygen, etc., among which common refrigerants include Freon, ammonia and carbon dioxide, etc.

[0031] In the pipeline type high temperature exhaust gas cooling treatment device of the utility model, at the bottom of the pipeline body 1, at the position of the two dewatering layers 2, at least one first liquid discharge port 13 is provided. Figure 1 In each of the dewatering layers 2, two such first drainage ports 13 are provided. The number of the first drainage ports 13 is determined according to the tightness and size of the stainless steel wire mesh provided in each dewatering layer 2, and the flow rate and humidity of the high-temperature exhaust gas passing therethrough.

[0032] In the pipeline type high temperature exhaust gas cooling treatment device of the present invention, a funnel-shaped liquid collecting device 14 is provided at the bottom of the pipeline body 1 at the position of the cooling medium flow channel 3, and a second liquid discharge port 15 is provided at the bottom of the liquid collecting device 14.

[0033] In the pipeline type high temperature exhaust gas cooling treatment device of the present invention, a steam outlet 16 is provided at the top of the pipeline body 1, between the cooling medium flow channel 3 and the water removal layer 2 at the rear section.

[0034] During the use of the pipeline-type high-temperature exhaust gas cooling treatment device of the utility model, the high-temperature exhaust gas A enters the pipeline body 1 from the air inlet 11, and first passes through the dehydration layer 2 located in the front section of the pipeline body 1 to preliminarily remove the moisture in the high-temperature exhaust gas A. Then the gas passes through the condenser 31 of the cooling medium flow channel 3, and the cooling medium is continuously introduced into the condenser 31. The introduced cooling medium flows in the cooling medium flow channel 3 and exchanges heat with the high-temperature exhaust gas, thereby quickly cooling and condensing the high-temperature exhaust gas. The gas cooled by the cooling medium flow channel 3 passes through the dehydration layer 2 located in the rear section of the pipeline body 1 again to further dry the cooled exhaust gas, and the low-temperature, dry exhaust gas B is discharged from the exhaust port 12. The water removed from the front and rear dehydration layers 2 respectively flows down along the stainless steel wire mesh and is discharged from the first drain port 13; the liquid water cooled and condensed from the condenser tube 31 of the cooling medium flow channel 3 flows downward into the liquid collecting device 14 located at the bottom of the pipeline body 1, and is finally discharged from the second drain port 15; the gaseous steam cooled and condensed from the condenser tube 31 of the cooling medium flow channel 3 is discharged upward from the steam discharge port 16.

[0035] The utility model pipeline type high temperature exhaust gas cooling treatment device can realize fast and efficient cooling treatment of high temperature exhaust gas by setting a dewatering layer and a cooling medium flow channel in the pipeline body, and can obtain dry low temperature exhaust gas to meet the subsequent treatment or discharge requirements. Compared with the traditional method of cooling high temperature exhaust gas by spraying cooling water flow, the utility model pipeline type high temperature exhaust gas cooling treatment device does not need to consume a large amount of water, and has the advantages of good cooling effect, low energy consumption, stable operation, etc.

[0036] In the pipeline-type high-temperature exhaust gas cooling treatment device of the utility model, a layer of corrosion-resistant material layer (not shown in the figure) is also covered on the inner wall of the pipeline main body 1, which can be used to prevent harmful substances in the exhaust gas from corroding or clogging the pipeline, thereby greatly improving the reliability and service life of the pipeline-type high-temperature exhaust gas cooling treatment device of the utility model; an insulation layer (not shown in the figure) is also provided on the outer wall of the pipeline main body 1, which can be used to reduce heat loss and further improve the cooling efficiency.

[0037] The utility model provides a pipeline-type high-temperature exhaust gas cooling treatment device with the characteristics of high efficiency, stability and environmental protection. It can be applied to the production processes of various chemical industries or environmental protection treatment plants, such as the treatment of high-temperature exhaust gas in the industrial production of steel, ceramics, glass, etc., and helps to promote the greening and sustainable development of industrial production.

[0038] 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 principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A pipeline type high temperature exhaust gas cooling treatment device, characterized in that: It includes a pipeline body, two dewatering layers located in the pipeline body, and a cooling medium flow channel located between the two dewatering layers; wherein the pipeline body is a horizontal pipeline structure, the two dewatering layers are respectively located in the front section and the rear section of the pipeline body, and the cooling medium flow channel includes several rows of condensing tubes arranged along the horizontal axis of the pipeline body and the cooling medium passed into the condensing tubes.

2. The pipeline type high temperature exhaust gas cooling treatment device according to claim 1 is characterized in that: The pipeline body is provided with a high-temperature exhaust gas inlet located at the front of the pipeline body and a low-temperature exhaust gas outlet located at the rear of the pipeline body.

3. The pipeline type high temperature exhaust gas cooling treatment device according to claim 1 is characterized in that: At the bottom of the pipeline body, at the positions of the two water removal layers, at least one first liquid discharge port is respectively provided.

4. The pipeline type high temperature exhaust gas cooling treatment device according to claim 1 is characterized in that: A funnel-shaped liquid collecting device is provided at the bottom of the pipeline body, located at the position of the cooling medium flow channel, and a second liquid drain port is provided at the bottom of the liquid collecting device.

5. The pipeline type high temperature exhaust gas cooling treatment device according to claim 1 is characterized in that: A steam outlet is provided at the top of the pipeline body, located between the cooling medium flow channel and the water removal layer of the rear section.

6. The pipeline type high temperature exhaust gas cooling treatment device according to claim 1 is characterized in that: The two water removal layers are stainless steel wire meshes.

7. The pipeline type high temperature exhaust gas cooling treatment device according to claim 1 is characterized in that: The condenser tubes in each row are curved and wavy.

8. The pipeline type high temperature exhaust gas cooling treatment device according to claim 1 is characterized in that: The inner wall of the pipeline body is covered with a corrosion-resistant material layer to prevent harmful substances in the exhaust gas from corroding or clogging the pipeline.

9. The pipeline type high temperature exhaust gas cooling treatment device according to claim 1, characterized in that: A heat-insulating layer is arranged on the outer wall of the pipeline body to reduce heat loss.

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