Combined spraying device of horizontal packed tower

Abstract

The utility model discloses a combined spraying device of a horizontal packed tower, and relates to the technical field of environmental protection equipment. The spray tower comprises a tower body shell, an air inlet is formed in the left side of the tower body shell, an air outlet is formed in the right side of the tower body shell, and a first spray section, a second spray section and a third spray section are sequentially arranged in the tower body shell from the air inlet to the air outlet; the first spraying section is provided with at least one set of atomizing nozzles, the second spraying section is provided with at least one set of first spiral nozzles, and the third spraying section is provided with at least one set of second spiral nozzles. According to the utility model, the contact efficiency of the gas phase and the liquid phase in the horizontal packing absorption tower and the uniformity of spraying in tower equipment are effectively improved, so that the use efficiency of the tower equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection equipment, and more specifically, it relates to a combined spraying device for a horizontal packing tower. Background Technique

[0002] In the structural design of waste gas treatment tower equipment, for occasions where the installation height is restricted, a horizontal packing absorption tower is usually used to treat waste gas. According to the basic properties of gas flow, the gas flow direction in a vertical absorption tower is from bottom to top, and the gas flow on each cross-section is uniform. However, in a horizontal absorption tower, since the gas flow direction is horizontal, guided by the gravity of the gas itself and the flow direction of the absorption liquid, the waste gas gradually flows downward and cannot be fully distributed on the surface of the packing, seriously affecting the contact effect between the gas and liquid phases and resulting in a very low wetting rate of the packing. This is also the main reason why the efficiency of the horizontal absorption tower is much lower than that of the vertical absorption tower.

[0003] To solve this pain point and difficulty, it is necessary to solve it from the properties of gas flow and the contact effect between the gas and liquid phases. Three different spraying methods are adopted to form an efficient spraying structure. This spraying device can effectively increase by 10 - 25% under the same basic equipment dimensions, packing quantity, and spraying volume, and the absorption treatment can reach or even exceed that of a vertical packing tower. Content of the Utility Model

[0004] In order to overcome the above technical deficiencies, the utility model provides a combined spraying device for a horizontal packing tower, which effectively further improves the contact efficiency between the gas and liquid phases in the horizontal packing absorption tower and the uniformity of spraying in the tower equipment, thereby improving the use efficiency of the tower equipment.

[0005] To solve the above technical problems, the utility model adopts the following technical solution: A combined spraying device for a horizontal packing tower, including a tower body shell, an air inlet is arranged on the left side of the tower body shell, an air outlet is arranged on the right side of the tower body shell, and a first spraying section, a second spraying section, and a third spraying section are arranged in sequence from the air inlet to the air outlet inside the tower body shell; at least one group of atomizing nozzles is arranged on the first spraying section, at least one group of first spiral nozzles is arranged on the second spraying section, and at least one group of second spiral nozzles is arranged on the third spraying section. The utility model effectively further improves the contact efficiency between the gas and liquid phases in the horizontal packing absorption tower and the uniformity of spraying in the tower equipment, thereby improving the use efficiency of the tower equipment.

[0006] Preferably, the first spraying section, the second spraying section, and the third spraying section can adopt a full-combination spraying method, or any two sections can be selected for combination spraying. Through the three different spraying sections, various spraying method combinations can be realized, improving the diversity of spraying.

[0007] Preferably, the spraying direction of the first spraying section is opposite to the gas flow direction of the air inlet, and atomizing nozzles are used, which is conducive to better contact between the gas and the atomized spray.

[0008] Preferably, the spraying direction of the second spraying section has an inclination angle α with the gas flow direction of the air inlet. The basic angle of α is 5°. A rotating ball head is provided at the connection of the first spiral nozzle, and a wind direction adjusting plate is provided at the connection of the rotating ball head and the first spiral nozzle.

[0009] Preferably, the α angle of the second spraying section can drive the wind direction adjusting plate and the rotating ball head to automatically adjust the α angle according to the air volume and density of the gas. The maximum inclination angle of the adjustment is α + 5°, effectively improving the spraying efficiency.

[0010] Preferably, when there are multiple spraying nozzles in the first spraying section and the second spraying section, they are arranged in a square.

[0011] Preferably, the spraying direction of the third spraying section is perpendicular to the gas flow direction, effectively improving the spraying efficiency.

[0012] Preferably, when there are multiple spraying nozzles in the third spraying section, they are arranged in a straight line, effectively improving the spraying efficiency.

[0013] Compared with the prior art, the beneficial effects of the present utility model are: effectively further improving the contact efficiency between the gas-liquid two-phase in the horizontal packed absorption tower and the uniformity of spraying in the tower equipment, thereby improving the use efficiency of the tower equipment. Brief Description of the Drawings

[0014] Figure 1 It is a schematic structural view of a combined spraying device of a horizontal packed tower of the present utility model.

[0015] Figure 2 It is a structural view of the first spraying section of the present utility model.

[0016] Figure 3 It is a structural view of the second spraying section of the present utility model.

[0017] Figure 4 It is a structural view of the third spraying section of the present utility model.

[0018] In the figure: air inlet 1, first spraying section 2-1, second spraying section 2-2, third spraying section 2-3, packing section 3, demisting section 4, air outlet 5, water tank 6, rotating ball head 7, wind direction adjusting plate 8, atomizing nozzle 9-1, first spiral nozzle 9-2, second spiral nozzle 9-2, tower body shell 100, first cover 101, box body 102, second cover 103. Detailed Description of the Invention

[0019] The technical solution of the utility model will be further specifically described below through specific embodiments in conjunction with the accompanying drawings:

[0020] Embodiment 1: Refer to the appended Figure 1 to the appended Figure 4 , a combined spray device for a horizontal packed tower, comprising: a first spray section 2-1, a second spray section 2-2, a third spray section 2-3, a wind direction adjustment plate 8, a rotating ball head 7, an atomizing nozzle 9-1, a first spiral nozzle 9-2, and a second spiral nozzle 9-2, which are combined in a spray mode.

[0021] A tower body housing 100, the tower body housing 100 includes a first cover 101, a box body 102, and a second cover 103. The first cover 101 and the second cover 103 are respectively fixedly arranged at both ends of the box body 102 for sealing the openings at both ends of the box body 102. Among them, the cross-section of the first end cover 101 is in a trapezoidal structure, the bottom side of the first end cover 101 is fixed to the left port of the box body 102, an air inlet 1 is opened at the top left of the first end cover 101, the cross-section of the second end cover 103 is in a trapezoidal structure, the bottom side of the second end cover 103 is fixed to the right port of the box body 102, and an air outlet 5 is opened at the top right of the second end cover 103. A water tank 6 for storing water is provided below the box body 102.

[0022] Inside the tower body housing 100, the first spray section 2-1, the second spray section 2-2, and the third spray section 2-3 are arranged in sequence from the air inlet 1 towards the air outlet 5; at least one group of the atomizing nozzles 9-1 is provided on the first spray section 2-1, at least one group of the first spiral nozzles 9-2 is provided on the second spray section 2-2, and at least one group of the second spiral nozzles 9-2 is provided on the third spray section 2-3.

[0023] The first spray section 2-1, the second spray section 2-2, and the third spray section 2-3 can be combined in a full combination spray mode, or any two sections can be selected for a combined spray mode.

[0024] The spray direction of the first spray section 2-1 is opposite to the gas flow direction of the air inlet 1, and the atomizing nozzle 9-1 is used.

[0025] The spraying direction of the second spraying section 2-2 has an inclination angle α with the gas flow direction of the air inlet. The basic angle of α is 5°. A rotating ball head 7 is provided at the connection of the first spiral nozzle 9-1. A wind direction adjusting plate 8 is provided at the connection of the rotating ball head 7 and the first spiral nozzle 9-1. The α angle of the second spraying section 9-2 can drive the wind direction adjusting plate 8 and the rotating ball head 7 to automatically adjust the angle of α according to the air volume and density of the gas. The maximum inclination angle for adjustment is α + 5°. Through the wind direction adjusting plate 8 and the rotating ball head 7 on the second spraying section 2-2, the angle adjustment of the second spiral nozzle 9-2 can be realized, so that the airflow passing through the second spraying section 2-2 can be atomized and sprayed with an adjustable angle within the range of α to α + 5° with respect to the airflow; among them, the α angle can also be adjusted according to the air volume and density of the gas.

[0026] The spraying direction of the third spraying section 2-3 is perpendicular to the gas flow direction. When there are multiple spray nozzles in the third spraying section 2-3, they are arranged in a straight line.

[0027] Two groups of first partitions with multiple through holes are obliquely arranged in the box body 102. The two groups of first partitions are located on the right side of the second spraying section 2-2. A packing section 3 is provided between the two groups of first partitions. A second partition arranged vertically is provided between the box body 102 and the end cover 103. A demisting section 4 is provided between the rightmost first partition and the second partition. Among them, the spraying area of the third spraying section 2-3 is set within the range of the packing section 3. The spraying direction of the third spraying section 2-3 is perpendicular to the gas flow direction. By spraying the gas atomized through the multiple spray nozzles arranged in a straight line on the third spraying section 2-3, it will cooperate with the packing section to treat the inflowing gas.

[0028] The specific spraying combination methods are as follows:

[0029] The first method: Combine the first spraying section 2-1 and the second spraying section 2-2.

[0030] First, start the first spray section 2-1 and the second spray section 2-2 so that the spray nozzles installed thereon spray water mist. Then, send the gas through the air inlet 1. At this time, the spraying direction of the first spray section 2-1 is opposite to the gas flow direction of the air inlet 1, and the gas entering the box body 102 is subjected to the first atomizing spray; the gas after the first atomizing spray continues to flow to the right side of the box body 102, and is subjected to the second atomizing spray through the third spray section 2-3 and the first atomizing spray through the second spray section 2-2. The spraying direction of the second spray section 2-2 has an inclination angle α with the gas flow direction of the air inlet. The basic angle of α is 5°. A rotating ball head 7 is provided at the connection of the first spiral nozzle 9-1, and a wind direction adjusting plate 8 is provided at the connection of the rotating ball head 7 and the first spiral nozzle 9-1. The α angle of the second spray section 9-2 can automatically adjust the angle of α by driving the wind direction adjusting plate 8 and the rotating ball head 7 according to the different air volume and density of the gas. The maximum inclination angle of adjustment is α + 5°, that is, the atomizing nozzles of the second spray section 2-2 perform atomizing spraying with an inclination angle ranging from α to α + 5° with the gas flow direction according to the actual situation to process the passing gas. The gas after the second atomizing spray treatment passes through the packing section 3 and the demisting section 4 in sequence, and finally is sent out from the air outlet 5.

[0031] The second method: adopt the combination of the first spray section 2-1 and the third spray section 2-3.

[0032] First, start the first spray section 2-1 and the third spray section 2-3 so that the spray nozzles installed thereon spray water mist. Then, send the gas through the air inlet 1. At this time, the spraying direction of the first spray section 2-1 is opposite to the gas flow direction of the air inlet 1, and the gas entering the box body 102 is subjected to the first atomizing spray; the gas after the first atomizing spray continues to flow to the right side of the box body 102, and is subjected to the second atomizing spray through the third spray section 2-3. At this time, the spraying direction of the third spray section 2-3 is perpendicular to the gas flow direction. The gas is subjected to the second atomizing spray through a plurality of spray nozzles arranged in a straight line on the third spray section 2-3. Among them, the second atomizing spray is combined with the packing section to process the gas. The gas passing through the packing section enters the demisting section 4, and finally is sent out from the air outlet 5.

[0033] The third method: adopt the combination of the second spray section 2-2 and the third spray section 2-3.

[0034] First, start the second spray section 2-2 and the third spray section 2-3 to make the spray nozzles installed thereon spray water mist, and then send the gas through the air inlet 1. At this time, the first atomizing spray is carried out through the second spray section 2-2. The spraying direction of the second spray section 2-2 has an inclination angle α with the gas flow direction at the air inlet. The basic angle of α is 5°. A rotating ball head 7 is provided at the connection of the first spiral nozzle 9-1, and a wind direction adjusting plate 8 is provided at the connection of the rotating ball head 7 and the first spiral nozzle 9-1. The α angle of the second spray section 9-2 can automatically adjust the angle of α of the wind direction adjusting plate 8 and the rotating ball head 7 according to the different air volume and density of the gas. The maximum inclination angle adjusted is α + 5°, that is, the atomizing nozzles of the second spray section 2-2 perform atomizing spraying with an inclination angle ranging from α to α + 5° with the gas flow direction according to the actual situation to treat the passing gas; the gas that has undergone the first atomizing spray continues to flow to the right side of the box body 102 and is subjected to the second atomizing spray through the third spray section 2-3. At this time, the spraying direction of the third spray section 2-3 is perpendicular to the gas flow direction, and the gas is subjected to the second atomizing spray through a plurality of spray nozzles arranged in a straight line on the third spray section 2-3. Among them, the second atomizing spray is carried out in cooperation with the packing section to treat the gas. The gas passing through the packing section enters the demisting section 4 and is finally sent out from the air outlet 5.

[0035] The fourth method: adopt the combination of the first spray section 2-1, the second spray section 2-2 and the third spray section 2-3. First, start the first spray section 2-1, the second spray section 2-2 and the third spray section 2-3 to make the spray nozzles installed on them spray water mist, and then send the gas through the air inlet 1. At this time, the spray direction of the first spray section 2-1 is opposite to the gas flow direction of the air inlet 1, and the gas entering the box body 102 is subjected to the first atomizing spray; the gas after the first atomizing spray continues to flow to the right side of the box body 102, passes through the third spray section 2-3 for the second atomizing spray, and passes through the second spray section 2-2 for the first atomizing spray. The spray direction of the second spray section 2-2 has an inclination angle α with the gas flow direction of the air inlet. The basic angle of α is 5°. The rotating ball head 7 is provided at the connection of the first spiral nozzle 9-1, and the wind direction adjusting plate 8 is provided at the connection of the rotating ball head 7 and the first spiral nozzle 9-1. The α angle of the second spray section 9-2 can drive the wind direction adjusting plate 8 and the rotating ball head 7 to automatically adjust the angle of α according to the different air volume and density of the gas. The maximum inclination angle adjusted is α + 5°, that is, the atomizing nozzles of the second spray section 2-2 perform atomizing spraying with an inclination angle ranging from α to α + 5° with the gas flow direction according to the actual situation to process the passing gas. The gas after the second atomizing spray continues to flow to the right side of the box body 102 and passes through the third spray section 2-3 for the second atomizing spray. At this time, the spray direction of the third spray section 2-3 is perpendicular to the gas flow direction, and the gas is subjected to the second atomizing spray through a plurality of spray nozzles arranged in a straight line on the third spray section 2-3. Among them, the second atomizing spray is combined with the packing section to process the gas. The gas passing through the packing section enters the demisting section 4 and is finally sent out from the air outlet 5.

[0036] Embodiment 2:

[0037] This embodiment is a further limitation based on Embodiment 1.

[0038] When there are multiple spray nozzles in the first spray section 2-1 and the second spray section 2-2, they are arranged in a square, which can effectively increase the contact area with the gas.

[0039] The specific spray combination methods are as follows: The first method: Combine the first spray section 2-1 and the second spray section 2-2. First, start the first spray section 2-1 and the second spray section 2-2 so that the spray nozzles installed thereon spray water mist, and then send the gas through the air inlet 1. At this time, the spray direction of the first spray section 2-1 is opposite to the gas flow direction of the air inlet 1, and the gas entering the box body 102 is subjected to the first atomizing spray; the gas after the first atomizing spray continues to flow to the right side of the box body 102, and is subjected to the second atomizing spray through the third spray section 2-3 and the first atomizing spray through the second spray section 2-2. The spray direction of the second spray section 2-2 has an inclination angle α with the gas flow direction of the air inlet. The basic angle of α is 5°. A rotating ball head 7 is provided at the connection of the first spiral nozzle 9-1, and a wind direction adjusting plate 8 is provided at the connection of the rotating ball head 7 and the first spiral nozzle 9-1. The α angle of the second spray section 9-2 can automatically adjust the angle of α by driving the wind direction adjusting plate 8 and the rotating ball head 7 according to the gas flow rate and the gas density. The maximum inclination angle adjusted is α + 5°, that is, the atomizing nozzles of the second spray section 2-2 perform atomizing spraying with an inclination angle ranging from α to α + 5° with the gas flow direction according to the actual situation to process the passing gas. The gas after the second atomizing spray treatment passes through the packing section 3 and the demisting section 4 in sequence, and finally is sent out from the air outlet 5.

[0040] The second method: Combine the first spray section 2-1 and the third spray section 2-3.

[0041] First, start the first spray section 2-1 and the third spray section 2-3 so that the spray nozzles installed thereon spray water mist, and then send the gas through the air inlet 1. At this time, the spray direction of the first spray section 2-1 is opposite to the gas flow direction of the air inlet 1, and the gas entering the box body 102 is subjected to the first atomizing spray; the gas after the first atomizing spray continues to flow to the right side of the box body 102, and is subjected to the second atomizing spray through the third spray section 2-3. At this time, the spray direction of the third spray section 2-3 is perpendicular to the gas flow direction, and the gas is subjected to the second atomizing spray through a plurality of spray nozzles arranged in a straight line on the third spray section 2-3. Among them, the second atomizing spray is combined with the packing section to process the gas. The gas passing through the packing section enters the demisting section 4, and finally is sent out from the air outlet 5

[0042] The third method: Combine the second spray section 2-2 and the third spray section 2-3.

[0043] First, start the second spray section 2-2 and the third spray section 2-3 so that the spray nozzles installed thereon spray water mist, and then send the gas through the air inlet 1. At this time, the first atomizing spray is carried out through the second spray section 2-2. The spray direction of the second spray section 2-2 has an inclination angle α with the gas flow direction at the air inlet. The basic angle of α is 5°. The rotating ball head 7 is provided at the connection of the first spiral nozzle 9-1, and the wind direction adjusting plate 8 is provided at the connection of the rotating ball head 7 and the first spiral nozzle 9-1. The α angle of the second spray section 9-2 can automatically adjust the angle of α of the wind direction adjusting plate 8 and the rotating ball head 7 according to the gas flow rate and the gas density. The maximum inclination angle adjusted is α + 5°, that is, the atomizing nozzles of the second spray section 2-2 perform atomizing spraying with an inclination angle ranging from α to α + 5° with the gas flow direction according to the actual situation to treat the passing gas; the gas that has undergone the first atomizing spray continues to flow to the right side of the box body 102 and is subjected to the second atomizing spray through the third spray section 2-3. At this time, the spray direction of the third spray section 2-3 is perpendicular to the gas flow direction, and the gas is subjected to the second atomizing spray through a plurality of spray nozzles arranged in a straight line on the third spray section 2-3. Among them, the second atomizing spray is carried out in cooperation with the packing section to treat the gas. The gas passing through the packing section enters the demisting section 4 and is finally sent out from the air outlet 5.

[0044] The fourth method: adopt the combination of the first spray section 2-1, the second spray section 2-2 and the third spray section 2-3. First, start the first spray section 2-1, the second spray section 2-2 and the third spray section 2-3 to make the spray nozzles installed thereon spray water mist, and then send the gas through the air inlet 1. At this time, the spray direction of the first spray section 2-1 is opposite to the gas flow direction of the air inlet 1 to perform the first atomizing spray on the gas entering the box body 102; the gas after the first atomizing spray continues to flow to the right side of the box body 102, and passes through the third spray section 2-3 for the second atomizing spray and through the second spray section 2-2 for the first atomizing spray. The spray direction of the second spray section 2-2 has an inclination angle α with the gas flow direction of the air inlet. The basic angle of α is 5°. A rotating ball head 7 is provided at the connection of the first spiral nozzle 9-1, and a wind direction adjusting plate 8 is provided at the connection of the rotating ball head 7 and the first spiral nozzle 9-1. The α angle of the second spray section 9-2 can drive the wind direction adjusting plate 8 and the rotating ball head 7 to automatically adjust the α angle according to the air volume and density of the gas. The maximum inclination angle of the adjustment is α + 5°, that is, the atomizing nozzles of the second spray section 2-2 perform atomizing spraying with an inclination angle ranging from α to α + 5° with the gas flow direction according to the actual situation to process the passing gas. The gas after the second atomizing spray continues to flow to the right side of the box body 102 and passes through the third spray section 2-3 for the second atomizing spray. At this time, the spray direction of the third spray section 2-3 is perpendicular to the gas flow direction, and the gas is subjected to the second atomizing spray through a plurality of spray nozzles arranged in a straight line on the third spray section 2-3. Among them, the second atomizing spray is combined with the packing section to process the gas. The gas passing through the packing section enters the demisting section 4 and is finally sent out from the air outlet 5.

Claims

1. A combined spraying device for a horizontal packed tower, characterized in that: It includes a tower shell, an air inlet is provided on the left side of the tower shell, an air outlet is provided on the right side of the tower shell, and a first spray section, a second spray section and a third spray section are arranged in sequence from the air inlet toward the air outlet in the tower shell; at least one group of atomizing nozzles is provided on the first spray section, at least one group of first spiral nozzles is provided on the second spray section, and at least one group of second spiral nozzles is provided on the third spray section.

2. The combined spraying device of a horizontal packed tower according to claim 1, characterized in that: The first spray section, the second spray section, and the third spray section can be used in a fully combined spraying mode, or any two sections can be selected for a combined spraying mode.

3. The combined spraying device of a horizontal packed tower according to claim 2, characterized in that: The spraying direction of the first spray section is opposite to the gas flow direction at the air inlet, and an atomizing nozzle is used.

4. The combined spraying device of a horizontal packed tower according to claim 3 is characterized in that: The spraying direction of the second spray section has an inclination angle α with the gas flow direction of the air inlet, and the basic angle α is 5°. A rotating ball head is provided at the connection of the first spiral nozzle, and a wind direction adjustment plate is provided at the connection of the rotating ball head and the first spiral nozzle.

5. The combined spraying device of a horizontal packed tower according to claim 4, characterized in that: The α angle of the second spray section can drive the wind direction adjustment plate and the rotating ball head to automatically adjust the α angle according to the gas volume and gas density. The maximum adjustable angle is α+5°.

6. A combined spraying device for a horizontal packed tower according to any one of claims 1 to 5, characterized in that: When there are multiple spray nozzles in the first spray section and the second spray section, they are arranged in a square.

7. The combined spraying device of a horizontal packed tower according to claim 6, characterized in that: The spraying direction of the third spraying section is perpendicular to the gas flow direction.

8. The combined spraying device of a horizontal packed tower according to claim 7, characterized in that: When there are multiple spray nozzles in the third spray section, they are arranged in a straight line.

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