An absorber used in ammonia water preparation process

Abstract

The present invention belongs to the technical field of ammonia water preparation equipment, and specifically relates to an absorber used in an ammonia water preparation process, including a tank body and an ammonia gas input section and an absorption water input section arranged on the tank body, an absorption ring is arranged in the tank body, and the absorption water flows through the water supply cavity to drive the spiral fan blades and the absorption ring to rotate, an air supply cavity is arranged between the outer ring side of the absorption ring and the side wall of the tank body, and the air supply cavity is connected with the ammonia gas input section, the absorption mesh covers the water supply hole, and an ammonia water outlet is arranged on one side end face of the absorption ring, and the ammonia water outlet is connected with the absorption cavity. The present invention makes use of the characteristics of the current pressurized supply of ammonia gas and absorption water, and makes use of the flow of absorption water to drive the absorption ring to rotate, so that the absorption water can flow rapidly along the absorption mesh under the action of centrifugal force, thereby accelerating the mixing speed of absorption water and ammonia gas, and at the same time increasing the entry efficiency of fresh absorption water, which is helpful to improve the efficiency of ammonia water preparation.

Description

Technical Field

[0001] The invention belongs to the technical field of ammonia water preparation equipment, and in particular relates to an absorber used in an ammonia water preparation process. Background Art

[0002] Ammonia is a colorless gas with a pungent odor. It is easily soluble in water to form ammonia water. Ammonia water has important applications in industry, agriculture and life. It can be used to prepare fertilizers, various ammonium salts in chemical industry, as well as in important fields such as organic synthesis, pharmaceuticals, and textiles.

[0003] At present, the preparation of ammonia water is mainly carried out through an ammonia absorption tower. Its working principle is to spray water into the top of the tower and ammonia into the bottom of the tower. The ammonia and water are dissolved by contact in the tower body. The ammonia water formed after the ammonia is dissolved drips to the bottom of the tower and is collected. The excess ammonia overflows from the top of the tower. The overflowed ammonia is collected and enters the next dissolution cycle. However, the ammonia absorption tower occupies a large area, the internal packing maintenance cost is high, and there are many supporting equipment, which makes the overall cost investment high, limiting the improvement of the product economy.

[0004] At present, there have been some progress in the miniaturization of ammonia preparation equipment. Among them, water is sprayed onto the absorbent mesh by pressure to form a mesh film, so that the liquid water used for absorption has a larger area-to-mass ratio, which can facilitate the absorption and dissolution of the ammonia gas introduced into the water space. However, after the water is sprayed onto the absorbent mesh, the water body flows down by inertia and gravity, and the flow speed on the absorbent mesh is slow, which restricts the contact efficiency between the ammonia gas and the fresh absorption water. Summary of the invention

[0005] In order to solve the above problems in the prior art, the present invention provides an absorber used in the ammonia water preparation process, which can effectively increase the flow rate of water on the water-absorbing mesh, thereby accelerating the operation efficiency of fresh absorbed water, thereby improving the efficiency of ammonia water preparation.

[0006] The specific technical solution adopted by the present invention is:

[0007] An absorber used in an ammonia water preparation process comprises a tank body and an ammonia gas input section and an absorption water input section arranged on the tank body, an absorption ring is arranged in the tank body, a hollow absorption chamber is arranged in the absorption ring, a rotating sleeve is arranged on the inner ring side of the absorption ring, a water supply chamber is formed between the inner ring side of the absorption ring and the rotating sleeve by means of spiral fan blades, the water supply chamber is connected with the absorption water input section, and the absorption water flows through the water supply chamber to drive the spiral fan blades and the absorption ring to rotate, and an air supply chamber is arranged between the outer ring side of the absorption ring and the side wall of the tank body The air supply cavity is connected with the ammonia input section, an air inlet pipe is arranged on the side of the absorption ring connected with the air supply cavity, the air inlet pipe extends into the absorption cavity of the absorption ring, a plurality of groups of annular absorption meshes are arranged radially in the absorption cavity, a water supply hole connected with the water supply cavity is arranged on the inner ring side of the absorption ring, the absorption mesh covers the water supply hole, the absorption cavity is divided into a plurality of sections by means of the absorption mesh, and an air inlet pipe is arranged on the rear side of each group of absorption meshes, an ammonia water outlet is arranged on one end face of the absorption ring, and the ammonia water outlet is connected with the absorption cavity.

[0008] A first sealing ring and a second sealing ring are respectively arranged on both sides of the air supply cavity. The second sealing ring is arranged between the ammonia input section and the absorption water input section of the tank body. The first sealing ring, the second sealing ring, the ammonia input section and the outer ring side of the absorption ring form an annular air supply cavity, and the second sealing ring, the absorption water input section, the closed end of the tank body, the end face of the absorption ring and the inner ring surface of the absorption ring form a water supply cavity.

[0009] The closed section of the tank body is also provided with a bottom sealing ring, which is annular, and the inner ring side of the bottom sealing ring forms a sealing fit with the rotating shaft sleeve.

[0010] The rotating sleeve is a hollow structure, and a fixed shaft is inserted into the axial cavity of the rotating sleeve. The rotating sleeve is mounted on the fixed shaft with the help of a rotating bearing and has the freedom to rotate relative to the fixed shaft. A first fixing seat is also provided on one side of the closed end of the tank body. The first fixing seat is fixedly connected to the closed end side wall of the tank body. A fixing hole is provided on the first fixing seat for the fixed shaft to be plugged in and fixed. The first fixing seat is mounted in the inner ring of the bottom ring.

[0011] The ammonia outlet is located at the open end of the tank body, and the open end of the tank body is provided with an open ring supported by a fixing plate. The inner ring side of the open ring is sealed with a second fixing seat, and the second fixing seat is provided with a fixing hole for the fixing shaft to form a plug-in fixation.

[0012] The open ring is coaxially arranged with the opening of the open end of the tank body, and multiple groups of fixing plates are arranged around the gap between the open ring and the open end of the tank body, and channels communicating with the ammonia outlet are formed between adjacent fixing plates.

[0013] An air intake cap is arranged on one side of the air intake pipe in the absorption chamber. The air intake cap is buckled on the exhaust side of the air intake pipe and the opening side of the air intake cap faces the side wall of the outer ring side of the absorption ring.

[0014] The ammonia gas input section and the absorption water input section are both mesh plate structures opened on the side wall of the tank body, and sealing rings are respectively arranged on both sides of the ammonia gas input section and the absorption water input section.

[0015] The beneficial effects of the present invention are:

[0016] The present invention utilizes the characteristics of the current pressurized supply of ammonia and absorption water, and utilizes the flow of absorption water to drive the absorption ring to rotate, so that the absorption water can flow rapidly along the absorption mesh under the action of centrifugal force, thereby accelerating the mixing speed of absorption water and ammonia, while increasing the entry efficiency of fresh absorption water, which helps to improve the efficiency of ammonia preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 is a schematic diagram of the air intake cap;

[0019] Figure 3 It is a schematic diagram of the present invention when used;

[0020] In the accompanying drawings, 1. tank body, 2. ammonia gas input section, 3. absorption water input section, 4. absorption ring, 5. absorption chamber, 6. rotating sleeve, 7. spiral fan blade, 8. water supply chamber, 9. air supply chamber, 10. air inlet pipe, 11. absorption mesh, 12. water supply hole, 13. ammonia water outlet, 14. first sealing retaining ring, 15. second sealing retaining ring, 16. bottom ring, 17. fixed shaft, 18. first fixed seat, 19. fixed plate, 20. open ring, 21. second fixed seat, 22. air inlet cap, 23. sealing ring. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0022] Specific implementation examples Figure 1As shown, the present invention is an absorber used in an ammonia water preparation process, comprising a tank body 1 and an ammonia gas input section 2 and an absorption water input section 3 arranged on the tank body 1, an absorption ring 4 is arranged in the tank body 1, a hollow absorption chamber 5 is arranged in the absorption ring 4, a rotating sleeve 6 is arranged on the inner ring side of the absorption ring 4, the inner ring side of the absorption ring 4 and the rotating sleeve 6 are supported and fixed by spiral blades 7 to form a water supply chamber 8, the water supply chamber 8 is connected with the absorption water input section 3, and the absorption water flows through the water supply chamber 8 to drive the spiral blades 7 and the absorption ring 4 to rotate, an air supply chamber 9 is arranged between the outer ring side of the absorption ring 4 and the side wall of the tank body 1, and the The air supply cavity 9 is communicated with the ammonia input section 2, and an air inlet pipe 10 is arranged on the side of the absorption ring 4 connected to the air supply cavity 9. The air inlet pipe 10 extends into the absorption cavity 5 of the absorption ring 4. The absorption cavity 5 is radially provided with multiple groups of annular absorption meshes 11. The inner ring side of the absorption ring 4 is provided with a water supply hole 12 connected with the water supply cavity 8. The absorption mesh 11 covers the water supply hole 12. The absorption cavity 5 is divided into multiple sections by means of the absorption mesh 11, and an air inlet pipe 10 is arranged on the rear side of each group of absorption meshes 11. An ammonia water outlet 13 is arranged on one end face of the absorption ring 4, and the ammonia water outlet 13 is communicated with the absorption cavity 5.

[0023] The present invention is used as Figure 1 and Figure 3 As shown, the ammonia input section 2 of the tank body 1 is connected to the ammonia supply device, and the absorption water input section 3 is connected to the absorption water supply device. When the pressured absorption water enters the water supply chamber 8 inside the tank body 1 through the absorption water input section 3 of the tank body 1, the spiral blade 7 is inclined along the water flow direction, and the water flow pushes the spiral blade 7, and the absorption ring 4 fixed to the spiral blade 7 rotates accordingly. At the same time, the water supply chamber 8 supplies water to the absorption chamber 5 through the water supply hole 12, and the water infiltrates the absorption mesh 11. Under the combined effect of water action and the centrifugal effect generated by the rotation of the absorption ring 4, water quickly flows through the absorption mesh 11. At the same time, the ammonia gas from the ammonia supply device is received by means of the arranged air supply cavity 9, and is sent into the absorption ring 4 through the air inlet pipe 10. Since the absorption mesh 11 is arranged on the front side of the air inlet pipe 10, that is, it is blocked between the air inlet pipe 10 and the ammonia water outlet 13, the ammonia gas penetrates the absorption mesh 11 and fully contacts with the water film thrown out by the centrifugal effect on the absorption mesh 11, thereby achieving an effective absorption effect.

[0024] When the absorbed water that has absorbed ammonia reaches the outer edge of the absorption mesh 11, the water is squeezed out of the absorption mesh 11 under the action of centrifugation and spreads on the inner wall of the outer ring side of the absorption ring 4 to form a centrifugal water layer, forming a secondary absorption of ammonia, further improving the preparation efficiency of ammonia. As the water accumulates, the thickness of the centrifugal water layer increases, and overflows from the ammonia outlet 13 to form ammonia water.

[0025] The whole process does not require power for the absorption ring 4, and the rotation can be formed by the water supply pressure. It has a compact structure and a small size, can achieve secondary absorption of ammonia water, and helps to reduce the cost of ammonia absorption.

[0026] Further, such as Figure 1 As shown, the first sealing ring 14 and the second sealing ring 15 are respectively arranged on both sides of the air supply cavity 9, and the second sealing ring 15 is arranged between the ammonia input section 2 and the absorption water input section 3 of the tank body 1. The first sealing ring 14, the second sealing ring 15, the ammonia input section 2 and the outer ring side of the absorption ring 4 form an annular air supply cavity 9, and the second sealing ring 15, the absorption water input section 3, the closed end of the tank body 1, the end face of the absorption ring 4 and the inner ring surface of the absorption ring 4 form a water supply cavity 8.

[0027] The first sealing ring 14 and the second sealing ring 15 are fixed on the inner wall of the tank body 1 , and the absorption ring 4 is arranged to abut against and seal with the first sealing ring 14 and the second sealing ring 15 , thereby forming a separation between the air supply chamber 9 and the water supply chamber 8 .

[0028] Further, such as Figure 1 As shown, the closed section of the tank body 1 is further provided with a bottom sealing ring 16, which is annular, and the inner ring side of the bottom sealing ring 16 is fitted with the rotating shaft sleeve 6 to form a sealing fit.

[0029] The rotating sleeve 6 is a hollow structure, and a fixed shaft 17 is inserted into the axial cavity of the rotating sleeve 6. The rotating sleeve 6 is mounted on the fixed shaft 17 with the help of a rotating bearing and has the freedom to rotate relative to the fixed shaft 17. A first fixing seat 18 is also provided on one side of the closed end of the tank body 1. The first fixing seat 18 is fixedly connected to the closed end side wall of the tank body 1. The first fixing seat 18 is provided with a fixing hole for the fixed shaft 17 to be plugged and fixed. The first fixing seat 18 is mounted in the inner ring of the bottom ring 16.

[0030] The rotating sleeve 6 is rotatably connected with the fixed shaft 17, so that the absorption ring 4 fixed to the rotating sleeve 6 also has the freedom of rotation, thereby generating a centrifugal effect during the ammonia absorption process.

[0031] Further, such as Figure 1 As shown, the ammonia outlet 13 is located at the open end of the tank body 1, and the open end of the tank body 1 is provided with an open ring 20 supported by a fixing plate 19, and the inner ring side of the open ring 20 is sealed with a second fixing seat 21, and the second fixing seat 21 is provided with a fixing hole for the fixing shaft 17 to form a plug-in fixation.

[0032] The open ring 20 is provided to support the second fixing seat 21 , so that the two ends of the fixing shaft 17 can be respectively plugged and fixed to the first fixing seat 18 and the second fixing seat 21 to form a limit position.

[0033] Further, such as Figure 1 As shown, the open ring 20 is coaxially arranged with the opening of the open end of the tank body 1, and the fixing plates 19 are arranged in multiple groups around the gap between the open ring 20 and the open end of the tank body 1, and a channel communicating with the ammonia outlet 13 is formed between adjacent fixing plates 19. The fixing plates 19 are arranged to support the open ring 20 and guide the ammonia overflowing from the ammonia outlet 13.

[0034] Further, such as Figure 1 and Figure 2 As shown, an air intake cap 22 is provided on one side of the air intake pipe 10 located in the absorption chamber 5 , and the air intake cap is buckled on the exhaust side of the air intake pipe 10 and the opening side of the air intake cap faces the side wall of the outer ring side of the absorption ring 4 .

[0035] The closed end of the air inlet cap is arranged toward the water inlet side of the absorption chamber 5. After the water splashes onto the air inlet cap, it will be thrown away from the side due to the rotation of the absorption ring 4 and will not fall into the air inlet pipe 10. In addition, the exhaust side of the air inlet pipe 10 is located closer to the inner ring side of the absorption ring 4 relative to the ammonia outlet 13. The centrifugal water layer will not be higher than the water inlet pipe, making it difficult for the absorbed water to enter the water inlet pipe and form backflow.

[0036] Further, such as Figure 1 and Figure 3 As shown, the ammonia gas input section 2 and the absorption water input section 3 are both mesh-like structures opened on the side wall of the tank body 1, and sealing rings 23 are respectively provided on both sides of the ammonia gas input section 2 and the absorption water input section 3.

[0037] When the present invention is used in conjunction with a gas supply device, Figure 3 As shown, it is only necessary to provide a sealed annular sleeve, set an annular cavity in the sleeve which is respectively connected to the ammonia supply device and the absorption water supply device, insert the absorber of the present invention into the annular sleeve, and then form it with the help of the separation of the sealing ring 23.

Claims

1. An absorber for use in an ammonia water preparation process, comprising a tank body (1) and an ammonia gas input section (2) and an absorption water input section (3) arranged on the tank body (1), characterized in that: The tank body (1) is provided with an absorption ring (4), and a hollow absorption chamber (5) is provided in the absorption ring (4). A rotating sleeve (6) is provided on the inner ring side of the absorption ring (4). The inner ring side of the absorption ring (4) and the rotating sleeve (6) are supported and fixed by spiral blades (7) to form a water supply chamber (8). The water supply chamber (8) is connected to the absorption water input section (3). The absorption water flows through the water supply chamber (8) to drive the spiral blades (7) and the absorption ring (4) to rotate. An air supply chamber (9) is provided between the outer ring side of the absorption ring (4) and the side wall of the tank body (1). The air supply chamber (9) is connected to the ammonia input section (2). The absorption ring (4) is connected to the air supply chamber (8). An air inlet pipe (10) is provided on one side of the air cavity (9), the air inlet pipe (10) extending into the absorption cavity (5) of the absorption ring (4), the absorption cavity (5) being provided with a plurality of groups of annular absorption mesh sheets (11) along the radial direction, the inner ring side of the absorption ring (4) being provided with a water supply hole (12) communicating with the water supply cavity (8), the absorption mesh sheet (11) covering the water supply hole (12), the absorption cavity (5) being divided into a plurality of sections by means of the absorption mesh sheets (11), and an air inlet pipe (10) being provided on the rear side of each group of absorption mesh sheets (11), and an ammonia water outlet (13) being provided on one end face of the absorption ring (4), the ammonia water outlet (13) being communicated with the absorption cavity (5).

2. The absorber used in the process for preparing aqueous ammonia according to claim 1, characterized in that: A first sealing retaining ring (14) and a second sealing retaining ring (15) are respectively arranged on both sides of the air supply cavity (9); the second sealing retaining ring (15) is arranged between the ammonia gas input section (2) and the absorption water input section (3) of the tank body (1); the first sealing retaining ring (14), the second sealing retaining ring (15), the ammonia gas input section (2) and the outer ring side of the absorption ring (4) form an annular air supply cavity (9); the second sealing retaining ring (15), the absorption water input section (3), the closed end of the tank body (1), the end surface of the absorption ring (4) and the inner ring surface of the absorption ring (4) form a water supply cavity (8).

3. The absorber used in the process for preparing aqueous ammonia according to claim 1, characterized in that: The closed section of the tank body (1) is further provided with a bottom sealing ring (16), the bottom sealing ring (16) being ring-shaped, and the inner ring side of the bottom sealing ring (16) is fitted with the rotating shaft sleeve (6) to form a sealing fit.

4. The absorber used in the process for preparing aqueous ammonia according to claim 3, characterized in that: The rotating sleeve (6) is of a hollow structure. A fixed shaft (17) is inserted into the axial cavity of the rotating sleeve (6). The rotating sleeve (6) is sleeved on the fixed shaft (17) by means of a rotating bearing and has the freedom to rotate relative to the fixed shaft (17). A first fixing seat (18) is also provided on one side of the closed end of the tank body (1). The first fixing seat (18) is fixedly connected to the side wall of the closed end of the tank body (1). A fixing hole for inserting and fixing the fixed shaft (17) is provided on the first fixing seat (18). The first fixing seat (18) is sleeved in the inner ring of the bottom ring (16).

5. The absorber used in the process for preparing aqueous ammonia according to claim 1, characterized in that: The ammonia water outlet (13) is located at the open end of the tank body (1); the open end of the tank body (1) is provided with an open ring (20) supported by a fixing plate (19); the inner ring side of the open ring (20) is sealed with a second fixing seat (21); the second fixing seat (21) is provided with a fixing hole for the fixing shaft (17) to be inserted and fixed.

6. The absorber used in the process for preparing aqueous ammonia according to claim 5, characterized in that: The open ring (20) is coaxially arranged with the opening of the open end of the tank body (1), and a plurality of sets of fixing plates (19) are arranged around the gap between the open ring (20) and the open end of the tank body (1), and adjacent fixing plates (19) form a channel communicating with the ammonia water outlet (13).

7. The absorber used in the process for preparing aqueous ammonia according to claim 1, characterized in that: An air intake cap (22) is provided on one side of the air intake pipe (10) located in the absorption chamber (5); the air intake cap (22) is buckled on the exhaust side of the air intake pipe (10) and the opening side of the air intake cap (22) faces the side wall of the outer ring side of the absorption ring (4).

8. The absorber used in the process for preparing aqueous ammonia according to claim 1, characterized in that: The ammonia gas input section (2) and the absorption water input section (3) are both mesh-shaped structures opened on the side wall of the tank body (1), and sealing rings (23) are respectively provided on both sides of the ammonia gas input section (2) and the absorption water input section (3).

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