Ammonia water preparation device

Abstract

The utility model relates to an ammonia water preparation device which comprises an ammonia absorption tower, an integrated liquid storage tank is arranged at the bottom of the ammonia absorption tower, a filler section and a tray section are sequentially arranged in the ammonia absorption tower from top to bottom, and an ammonia gas inlet is arranged at the lower end of the side wall of the ammonia absorption tower and between the tray section and the integrated liquid storage tank. A desalted water inlet and a first ammonia water circulating inlet are formed in the side wall of the ammonia absorption tower above the filler section, a second ammonia water circulating inlet is formed in the side wall of the ammonia absorption tower between the filler sections, an ammonia water cooler is arranged in the integrated liquid storage tank, an ammonia water outlet is formed in the side wall of the integrated liquid storage tank, and the ammonia water outlet is connected with an ammonia water discharge pipeline through an ammonia water pump; the ammonia water discharge pipeline is connected with a first ammonia water circulating pipeline and a second ammonia water circulating pipeline, the first ammonia water circulating pipeline is connected with the first ammonia water circulating inlet, and the second ammonia water circulating pipeline is connected with the second ammonia water circulating inlet. According to the device, the occupied area of equipment is saved, and the contact area of ammonia gas and desalted water is increased, so that the yield of ammonia water is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, in particular to an ammonia water preparation device. Background Art

[0002] Ammonia water, also known as ammonia water solution, is a commonly used chemical reagent and chemical raw material. The main components of ammonia water are ammonia gas and water, usually expressed as NH3·H2O, and its chemical composition is NH4OH. Ammonia water is widely used in chemistry, industry, medicine and life. Ammonia water is made of ammonia gas and water. The existing ammonia water preparation equipment generally occupies a large area, and the absorption efficiency in ammonia water preparation is not high. Utility Model Content

[0003] The utility model aims to solve the deficiencies of the prior art and provides an ammonia water preparation device.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] An ammonia water preparation device comprises an ammonia absorption tower, wherein an integrated liquid storage tank is provided at the bottom of the ammonia absorption tower, a packing section and a tower plate section are sequentially provided in the ammonia absorption tower from top to bottom, an ammonia gas inlet is provided at the lower end of the side wall of the ammonia absorption tower between the tower plate section and the integrated liquid storage tank, a desalted water inlet and a first ammonia water circulation inlet are provided on the side wall of the ammonia absorption tower above the packing section, a second ammonia water circulation inlet is provided on the side wall of the ammonia absorption tower between the packing sections, an ammonia water cooler is provided in the integrated liquid storage tank, an ammonia water outlet is provided on the side wall of the integrated liquid storage tank, the ammonia water outlet is connected to an ammonia water discharge pipe via an ammonia water pump, the ammonia water discharge pipe is connected to a first ammonia water circulation pipe and a second ammonia water circulation pipe, the first ammonia water circulation pipe is connected to the first ammonia water circulation inlet, and the second ammonia water circulation pipe is connected to the second ammonia water circulation inlet.

[0006] The packing section includes 2-4 packing layers arranged from top to bottom, the first ammonia water circulation inlet is located above the first upper packing layer, and the second ammonia water circulation inlet is located between the first packing layer and the second packing layer from top to bottom.

[0007] The tray section comprises a plurality of trays arranged from top to bottom, and the plurality of trays are arranged in sequence and at equal intervals inside the ammonia absorption tower.

[0008] The beneficial effects of the utility model are as follows: the utility model combines an ammonia absorption tower, an integrated liquid storage tank, and an ammonia water cooler together, which greatly saves the number of equipment and investment costs, and can also save the floor space of the equipment. Ammonia gas and desalted water are brought into countercurrent contact to prepare ammonia water by combining fillers with tower plates, which greatly increases the contact area between ammonia gas and desalted water, thereby increasing the ammonia water output. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1It is a schematic diagram of the structure of the utility model;

[0010] In the figure: 1-ammonia absorption tower; 2-integrated liquid storage tank; 3-packing section; 4-tray section; 5-ammonia gas inlet; 6-desalted water inlet; 7-first ammonia water circulation inlet; 8-second ammonia water circulation inlet; 9-ammonia water cooler; 10-ammonia water outlet; 11-ammonia water pump; 12-ammonia water discharge pipeline; 13-first ammonia water circulation pipeline; 14-second ammonia water circulation pipeline;

[0011] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0012] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0013] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0016] An ammonia water preparation device, such as Figure 1As shown, it includes an ammonia absorption tower 1, an integrated liquid storage tank 2, a packing section 3, a tower plate section 4, an ammonia gas inlet 5, a desalted water inlet 6, a first ammonia water circulation inlet 7, a second ammonia water circulation inlet 8, an ammonia water cooler 9, an ammonia water outlet 10, an ammonia water pump 11, an ammonia water discharge pipe 12, a first ammonia water circulation pipe 13 and a second ammonia water circulation pipe 14.

[0017] An integrated liquid storage tank 2 is provided at the bottom of the ammonia absorption tower 1, and a packing section 3 and a tray section 4 are sequentially provided in the ammonia absorption tower 1 from top to bottom. An ammonia gas inlet 5 is provided at the lower end of the side wall of the ammonia absorption tower 1 between the tray section 4 and the integrated liquid storage tank 2. A desalted water inlet 6 and a first ammonia water circulation inlet 7 are provided on the side wall of the ammonia absorption tower 1 above the packing section 3. A second ammonia water circulation inlet 8 is provided on the side wall of the ammonia absorption tower 1 between the packing sections 3. An ammonia water cooler 9 is provided in the integrated liquid storage tank 2. An ammonia water outlet 10 is provided on the side wall of the integrated liquid storage tank 2. The ammonia water outlet 10 is connected to an ammonia water discharge pipe 12 through an ammonia water pump 11. The ammonia water discharge pipe 12 is connected to a first ammonia water circulation pipe 13 and a second ammonia water circulation pipe 14. The first ammonia water circulation pipe 13 is connected to the first ammonia water circulation inlet 7, and the second ammonia water circulation pipe 14 is connected to the second ammonia water circulation inlet 8.

[0018] A desalted water inlet 6 is provided at the top of the ammonia absorption tower 1 , and desalted water is fed from the top of the ammonia absorption tower 1 downward.

[0019] The bottom of the ammonia absorption tower 1 is provided with an ammonia inlet 5. Ammonia enters the ammonia absorption tower 1 through a pipeline and is fed from the bottom of the ammonia absorption tower 1 upward.

[0020] The packing section 3 includes 2-4 packing layers arranged from top to bottom, the first ammonia water circulation inlet 7 is located above the first upper packing layer, and the second ammonia water circulation inlet 8 is located between the first packing layer and the second packing layer from top to bottom. The ammonia water cooled by the ammonia water cooler is pressurized and refluxed into the ammonia absorption tower 1 through the ammonia water pump 11.

[0021] The height of each packing layer in the packing section 3 is 500-6000 mm, and the packing layer is a structured packing or a random packing.

[0022] The tray section 4 includes a plurality of trays arranged from top to bottom, and the plurality of trays are sequentially and equidistantly arranged inside the ammonia absorption tower 1 .

[0023] The number of the trays in the tray section 4 is 1-20 layers, and the trays are valve trays or three-dimensional trays.

[0024] An integrated liquid storage tank 2 is provided at the bottom of the ammonia absorption tower 1, so that the ammonia water produced in the ammonia absorption tower 1 directly flows into the integrated liquid storage tank 2. An ammonia water cooler 9 is provided inside the integrated liquid storage tank 2. Since the ammonia absorption process is an exothermic reaction, a large amount of heat will be released, resulting in a higher temperature of the prepared ammonia water. The ammonia water cooler 9 provided inside the integrated liquid storage tank 2 can well allow the higher temperature ammonia water to exchange heat with the cold logistics (such as circulating water) to reduce the temperature.

[0025] The ammonia water cooler 9 can be in the form of a shell and tube heat exchanger, a plate and frame heat exchanger, an air cooler, etc., or any combination of several of them. The number of the ammonia water coolers 9 is 1-6.

[0026] The ammonia water outlet 10 at the lower part of the ammonia absorption tower 1 is connected to the inlet of the ammonia water pump 11 through a pipeline. A part of the outlet pipeline of the ammonia water pump 11 is connected to the ammonia water circulation inlet, and a part is sent to the outside of the device.

[0027] When the utility model is working, desalted water enters the ammonia absorption tower 1 from the top, and is countercurrently contacted with ammonia gas entering from the bottom of the ammonia absorption tower 1 in the tower, so that all the ammonia gas rising in the tower is converted into ammonia water, and the ammonia water flows downward to the integrated liquid storage tank 2 of the ammonia absorption tower 1, and is cooled by the ammonia water cooler 9. A part of the cooled ammonia water flows back into the tower from the top and middle part of the filler of the ammonia absorption tower 1, and the other part of the ammonia water is collected and reserved as a qualified ammonia water product.

[0028] The utility model combines an ammonia absorption tower 1, an integrated liquid storage tank 2, and an ammonia water cooler 9 together, which greatly saves the number of equipment and investment costs, and can also save the floor space of the equipment. Ammonia gas and desalted water are brought into countercurrent contact to prepare ammonia water by combining fillers with tower plates, which greatly increases the contact area between ammonia gas and desalted water, thereby increasing the ammonia water output.

[0029] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. An ammonia water preparation device, characterized in that: The invention comprises an ammonia absorption tower (1), wherein an integrated liquid storage tank (2) is provided at the bottom of the ammonia absorption tower (1), a packing section (3) and a tray section (4) are provided in sequence from top to bottom in the ammonia absorption tower (1), an ammonia gas inlet (5) is provided at the lower end of the side wall of the ammonia absorption tower (1) between the tray section (4) and the integrated liquid storage tank (2), a desalted water inlet (6) and a first ammonia water circulation inlet (7) are provided on the side wall of the ammonia absorption tower (1) above the packing section (3), and a second ammonia water circulation inlet (8) is provided on the side wall of the ammonia absorption tower (1) between the packing sections (3). 8), an ammonia water cooler (9) is provided in the integrated liquid storage tank (2), an ammonia water outlet (10) is provided on the side wall of the integrated liquid storage tank (2), the ammonia water outlet (10) is connected to an ammonia water discharge pipe (12) through an ammonia water pump (11), the ammonia water discharge pipe (12) is connected to a first ammonia water circulation pipe (13) and a second ammonia water circulation pipe (14), the first ammonia water circulation pipe (13) is connected to a first ammonia water circulation inlet (7), and the second ammonia water circulation pipe (14) is connected to a second ammonia water circulation inlet (8).

2. An ammonia water preparation device according to claim 1, characterized in that: The packing section (3) comprises 2-4 packing layers arranged from top to bottom, the first ammonia water circulation inlet (7) is located above the first upper packing layer, and the second ammonia water circulation inlet (8) is located between the first packing layer and the second packing layer from top to bottom.

3. An ammonia water preparation device according to claim 2, characterized in that: The height of each packing layer of the packing section (3) is 500-6000 mm.

4. The ammonia water preparation device according to claim 1, characterized in that: The tray section (4) comprises a plurality of trays arranged from top to bottom, and the plurality of trays are arranged in sequence and at equal intervals inside the ammonia absorption tower (1).

5. An ammonia water preparation device according to claim 4, characterized in that: The number of trays in the tray section (4) is 1 to 20.

6. The ammonia water preparation device according to claim 1, characterized in that: The number of ammonia water coolers (9) in the integrated liquid storage tank (2) is 1-6.

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