Ammonia gas purification device
By using ultrapure water and fill layer technology in ammonia purification device, the problem of purification of water-soluble impurities and particulate matter in ammonia is solved, and efficient ammonia purification is achieved, reducing operating costs and equipment complexity.
Patent Information
- Application Number
- CN202420341585.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-02-23
AI Technical Summary
The prior art is difficult to effectively purify water-soluble impurities and particulate matter in ammonia, and self-built distillation and purification equipment is expensive and economically unreasonable.
Design an ammonia purification device, which can dissolve and atomize impurities by setting ultrapure water in the tank, combines the Ball ring and the mist degreaser filling layer for dust removal and water removal, and uses nitrogen to improve the purity of ammonia to achieve industrial-grade ammonia Purification of gas.
The removal efficiency of water-soluble impurities in ammonia gas is achieved by reaching more than 80%, with low operating costs, simple process and operation, and no need for moving equipment.
Smart Images
Figure CN222196393U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ammonia purification, in particular to an ammonia purification device. Background Art
[0002] Ammonia is a colorless gas with a strong pungent odor that can burn the skin, eyes, and respiratory mucosa. Excessive inhalation can cause lung swelling and even death. When it forms a mixture with air, it is also explosive when exposed to open flames. The explosion limit is 15.7-27.4. It can be ignited in pure oxygen and the ignition point is 650℃.
[0003] When producing small batches of electronic-grade or photovoltaic-grade ammonia water, electronic-grade ammonium fluoride and other products, it is costly to purchase high-purity ammonia from outside, and it is also uneconomical to build distillation and purification equipment by yourself. Summary of the invention
[0004] The technical problem to be solved by the utility model is to provide an ammonia purification device, which can realize water-washing purification of industrial-grade ammonia and remove water-soluble impurities and particulate matter in the ammonia.
[0005] An ammonia purification device comprises an ammonia purification tank body, wherein the top and bottom of the ammonia purification tank body are respectively a gas outlet and a liquid discharge port, an ultrapure water inlet is arranged at the lower part of the side wall of the ammonia purification tank body, a ball ring filling layer and a demister filling layer are arranged in sequence upwardly on the upper part of the ammonia purification tank body, a venturi gas inlet is arranged on the side wall of the ammonia purification tank body, the venturi gas inlet extends into the ammonia purification tank body and is connected to an atomizing nozzle, the nozzle of the atomizing nozzle is upwardly directed toward the ball ring filling layer, and an ultrapure water pipeline connected to the venturi gas inlet is arranged at the bottom of the ammonia purification tank body.
[0006] The above-mentioned venturi gas inlet is connected to the nitrogen pipeline and the ammonia pipeline to be purified.
[0007] The nitrogen pipeline and the ammonia pipeline to be purified are respectively provided with a nitrogen valve and an ammonia valve.
[0008] A liquid level gauge connected to the tank is provided on one side of the bottom of the ammonia purification tank.
[0009] The utility model provides an ammonia purification device, which dissolves impurities and atomizes ammonia by placing ultrapure water in a tank body, removes dust and water from the atomized water-gas mixture, thereby obtaining purified ammonia, and discharges the air in the tank in combination with nitrogen. After the industrial-grade ammonia is purified, the removal efficiency of water-soluble impurities can reach more than 80%. The process and operation method are simple, no equipment needs to be moved, and the operating cost is low. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0011] Figure 1 It is a structural schematic diagram of the ammonia purification device of the utility model.
[0012] In the figure: ammonia purification tank 1, demister filling layer 2, ball ring filling layer 3, ultrapure water inlet 4, venturi gas inlet 5, atomizing nozzle 6, drain port 7, gas outlet 8, nitrogen pipeline 9, nitrogen valve 10, ammonia pipeline to be purified 11, ammonia valve 12, ultrapure water pipeline 13, liquid level meter 14. DETAILED DESCRIPTION
[0013] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0014] like Figure 1 As shown in, an ammonia purification device includes an ammonia purification tank body 1, the top and bottom of the ammonia purification tank body 1 are respectively a gas outlet 8 and a liquid discharge port 7, an ultrapure water inlet 4 is provided at the lower part of the side wall of the ammonia purification tank body 1, a ball ring filling layer 3 and a demister filling layer 2 are sequentially provided in the upward direction of the upper part of the ammonia purification tank body 1, a venturi gas inlet 5 is provided on the side wall of the ammonia purification tank body 1, the venturi gas inlet 5 extends into the ammonia purification tank body 1 and is connected to an atomizing nozzle 6, the nozzle of the atomizing nozzle 6 is upward toward the ball ring filling layer 3, and an ultrapure water pipeline 13 connected to the venturi gas inlet 5 is provided at the bottom of the ammonia purification tank body 1.
[0015] When the ammonia to be purified enters the ammonia purification tank 1 from the Venturi gas inlet 5, the flow rate at the Venturi inlet increases and the pressure decreases, so that ultrapure water is sucked to the inlet and atomized, and the ammonia is dissolved in the ultrapure water. When the ammonia in the ultrapure water is saturated, it will no longer absorb ammonia. The ultrapure water will absorb the water-soluble impurities, dust, etc. in the ammonia, and then it will be purified by the ball ring filling layer 3 and the demister filling layer 2 to remove moisture, and purified ammonia will be obtained at the gas outlet 8. The device structure is simple and practical, and it is a practical equipment for purifying ammonia at a low cost.
[0016] The above-mentioned venturi gas inlet 5 is connected to the nitrogen pipeline 9 and the ammonia pipeline 11 to be purified.
[0017] Before purification, nitrogen is introduced into the pipe through the nitrogen pipeline 9 to discharge the air in the tank, which will increase the purity of the purified ammonia.
[0018] The nitrogen pipeline 9 and the ammonia pipeline 11 to be purified are respectively provided with a nitrogen valve 10 and an ammonia valve 12.
[0019] The nitrogen valve 10 and the ammonia valve 12 are used to control the gas introduced into the tank.
[0020] A liquid level gauge 14 communicating with the inside of the tank is provided on one side of the bottom of the ammonia purification tank body 1 .
[0021] Example:
[0022] The device structure used in this implementation is:
[0023] 1. A cylindrical device with upper and lower heads, PTFE or PFA lining, D1000*H1500mm, ammonia purification capacity 200kg / h.
[0024] 2. The upper part of the equipment is a demister made of clean fluoroplastic material H400mm, the middle part is a PFA ball ring packing layer H400mm, the lower part is equipped with a Venturi and atomizing nozzle (316L, Venturi inlet Φ60, side water inlet Φ6, and the bottom is equipped with a liquid level meter and ultrapure water inlet.
[0025] Here’s how to use it:
[0026] 1. After the equipment is replaced with nitrogen, 0.3MPa ammonia is introduced and the gas supply pressure at the outlet is 0.15MPa.
[0027] 2. During the initial operation, it is necessary to control the amount of ammonia introduced until the ultrapure water reaches saturation.
[0028] 3. Drain and replenish water once a week, discharging 20% of the liquid level.
Claims
1. An ammonia purification device, Its characteristics are: The invention comprises an ammonia purification tank body (1), wherein the top and bottom of the ammonia purification tank body (1) are respectively provided with a gas outlet (8) and a liquid discharge outlet (7), an ultrapure water inlet (4) is provided at the lower part of the side wall of the ammonia purification tank body (1), a ball ring filling layer (3) and a demister filling layer (2) are provided in sequence at the upper part of the ammonia purification tank body (1) in an upward direction, a venturi gas inlet (5) is provided on the side wall of the ammonia purification tank body (1), the venturi gas inlet (5) extends into the ammonia purification tank body (1) and is connected to an atomizing nozzle (6), a nozzle of the atomizing nozzle (6) is directed upward toward the ball ring filling layer (3), and an ultrapure water pipeline (13) connected to the venturi gas inlet (5) is provided at the bottom of the ammonia purification tank body (1).
2. An ammonia purification device according to claim 1, It is characterized in that The venturi gas inlet (5) is connected to a nitrogen pipeline (9) and an ammonia pipeline (11) to be purified.
3. An ammonia purification device according to claim 2, It is characterized in that The nitrogen pipeline (9) and the ammonia pipeline (11) to be purified are respectively provided with a nitrogen valve (10) and an ammonia valve (12).
4. An ammonia purification device according to claim 3, It is characterized in that A liquid level gauge (14) connected to the inside of the tank is provided on one side of the bottom of the ammonia purification tank (1).