CN211725257U - Ammonia water storage tank gas recovery device - Google Patents
Ammonia water storage tank gas recovery device Download PDFInfo
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- CN211725257U CN211725257U CN201922076360.0U CN201922076360U CN211725257U CN 211725257 U CN211725257 U CN 211725257U CN 201922076360 U CN201922076360 U CN 201922076360U CN 211725257 U CN211725257 U CN 211725257U
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Abstract
The utility model belongs to waste gas washing recovery unit, concretely relates to gaseous recovery unit of aqueous ammonia storage tank. The utility model provides an aqueous ammonia storage tank gas recovery unit, includes aqueous ammonia storage tank and water seal tank through ammonia pipe connection be provided with blast gate and check valve on the ammonia pipeline, be provided with the ball-cock assembly in the water seal tank, the ball-cock assembly is connected to the storage water tank, be provided with air intake and air exit on the water seal tank, air intake and air exit all are located above the liquid level in the water seal tank. The utility model discloses a set up water seal groove and absorption tower behind the aqueous ammonia storage tank, can absorb the ammonia in the aqueous ammonia storage tank and discharge to the atmosphere again after the dechlorination, not only reach the environmental protection requirement, still recycle the ammonia, reduced manufacturing cost.
Description
Technical Field
The utility model belongs to waste gas washing recovery unit, concretely relates to gaseous recovery unit of aqueous ammonia storage tank.
Background
In the traditional process for preparing ammonia water from liquid ammonia, a liquid ammonia storage tank is arranged on a route with intermittent production and long preparation time, the liquid ammonia storage tank is bound to form a great hazard source, so that the process is dangerous, two or more ammonia water preparation tanks with large volumes are needed, one tank is used for preparation, and one or more tanks are finished product tanks, and the traditional process is alternately switched. Because the cooling means is not ideal, the temperature of the ammonia water is high, the equilibrium partial pressure of the ammonia is high, the traditional process cannot keep up with the cooling, and the undissolved excessive ammonia runs to the atmosphere through the tail gas pipe, thereby polluting the environment.
In some industrial production processes, the needed strong ammonia water is stored in a tank in advance, and the supplement and discharge of the intermediate storage tanks are uninterrupted, so that the ammonia water in the storage tanks is continuously disturbed, and the ammonia water is more volatilized. Therefore, according to the characteristic of aqueous ammonia storage tank, if directly carry out convulsions to the aqueous ammonia storage tank, will accelerate the volatilization of aqueous ammonia certainly, cause the storage tank top to discharge the gas ammonia content and exceed standard, reach the environmental protection emission requirement on the one hand, on the other hand has lead to the ammonia to run off, increases manufacturing cost.
Disclosure of Invention
For solving the problem that ammonia runs off and leads to environmental pollution and energy waste in the ammonia water storage tank among the prior art, the utility model provides an ammonia water storage tank gas recovery device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an aqueous ammonia storage tank gas recovery unit, includes aqueous ammonia storage tank and water seal tank through ammonia pipe connection, be provided with blast gate and check valve on the ammonia pipeline, be provided with the ball-cock assembly in the water seal tank, the ball-cock assembly is connected to the storage water tank, be provided with air intake and air exit on the water seal tank, air intake and air exit all are arranged in the water seal tank above the liquid level.
Further, still be provided with the acidizing fluid import on the water seal groove, the acidizing fluid import is connected to the acidizing fluid storage tank through the pipeline.
Furthermore, the air inlet is connected with an air blower, and the air outlet is connected with the absorption tower.
Furthermore, a pressure gauge is arranged on the ammonia water storage tank, and a controller is arranged between the pressure gauge and the air valve.
Furthermore, a liquid level meter is further arranged in the water seal tank, and a sight glass manhole and a sampling port are further arranged on the side wall of the water seal tank.
Furthermore, a water outlet is formed in the bottom of the water seal groove and connected with a sewage discharge pipe, and a sewage discharge pump is arranged on the sewage discharge pipe.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model arranges the water seal tank and the absorption tower behind the ammonia water storage tank, so that ammonia gas in the ammonia water storage tank can be discharged to the atmosphere after being absorbed and deaminated; the ammonia gas pipeline is provided with a pressure gauge and a controller, so that the ammonia gas can be automatically discharged by detecting the condition of the ammonia water in the ammonia water storage tank; a water stop valve is arranged on the ammonia pipeline, so that the absorption liquid in the water seal tank can be prevented from flowing back into the ammonia water storage tank to cause pollution when the machine fails; a float valve is arranged in the water seal tank and connected to the water storage tank, and when the water level of the water in the water seal tank for absorbing ammonia gas drops, automatic water supplement can be carried out; the blower and the air inlet are arranged on the liquid surface of the water seal tank, so that the circulation of unabsorbed ammonia on the liquid surface of the water seal tank can be accelerated, and the ammonia enters the absorption tower for final ammonia absorption. The utility model discloses not only reach the environmental protection requirement, still recycle the ammonia, reduced manufacturing cost.
Drawings
Fig. 1 is a schematic structural diagram of the ammonia water storage tank gas recovery device of the present invention.
In the drawings, the reference numbers:
1 is an ammonia water storage tank, 2 is a water seal tank, 3 is an absorption tower, 4 is a water storage tank, 5 is a ball float valve, 6 is a liquid level meter, 7 is an air blower, 8 is an air valve, 9 is a check valve, 10 is a pressure gauge, 11 is a controller, and 12 is an acid liquor storage tank.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
The utility model provides an aqueous ammonia storage tank gas recovery unit, as shown in figure 1, includes aqueous ammonia storage tank 1 and water seal tank 2 through ammonia pipe connection, and the specification of water seal tank 2 is in this embodiment: long 2000mm, wide 1500mm, high 1500mm, water level is 1200mm in the water sealed tank 2, and the ammonia pipeline is located water sealed tank 2 liquid level down 1000mm department with the tie point of water sealed tank 2, be provided with blast gate 8 and check valve 9 on the ammonia pipeline, be provided with ball float valve 5 in the water sealed tank 2, ball float valve 5 is connected to storage water tank 4, and when water level was less than 1200mm in the water sealed tank 2, ball float valve 5 was automatic to be opened, through storage water tank 4 automatic water supply, ball float valve 5 closed when the water level reached 1200mm, and the moisturizing stops. The water seal tank 2 is provided with an air inlet and an air outlet which are connected with pipelines, so that the air inlet and the air outlet are both positioned above the liquid level in the water seal tank 2 in order to prevent absorption liquid from entering the pipeline.
As an implementation method, the water-sealed tank 2 is further provided with an acid liquid inlet, the acid liquid inlet is connected to the acid liquid storage tank 12 through a pipeline, when ammonia gas and sulfuric acid are required to react, pure water in the water-sealed tank 2 can be emptied, and sulfuric acid from the acid liquid storage tank 12 is introduced for ammonia gas absorption.
As an implementation method, the air inlet is connected to the air blower 7, the air outlet is connected to the absorption tower 3, the air blower 7 can accelerate the ammonia gas which is not absorbed in the water seal tank 2 to enter the absorption tower 3 for reabsorption treatment, and dilute sulfuric acid is used as absorption liquid in the absorption tower 3 and reacts with the ammonia gas in a spraying mode, so that the effect of thoroughly removing residual ammonia gas is achieved.
As an implementation method, a pressure gauge 10 is arranged on the ammonia water storage tank 1, a controller 11 is arranged between the pressure gauge 10 and the air valve 8, when the pressure in the ammonia water storage tank 1 exceeds a set pressure, the controller 11 controls the air valve 8 to be opened, ammonia gas in the ammonia water storage tank 1 enters the water seal tank 2 through an ammonia gas pipeline, otherwise, the air valve 8 is closed; when the device breaks down to cause the pressure of the ammonia water storage tank 1 to be reduced or the pressure of the water seal tank 2 to be increased, the check valve 9 is automatically closed, and the liquid in the water seal tank 2 is prevented from flowing backwards to cause pollution.
As an implementable method, the liquid level meter 6 is further arranged in the water seal tank 2, the side wall of the water seal tank 2 is further provided with a sight glass manhole and a sampling port, the liquid level meter 6 and the sight glass manhole can be convenient for workers to monitor the ammonia absorption condition in the water seal tank 2, and absorption liquid is collected through the sampling port to judge whether saturation is achieved.
As an implementation method, the bottom of the water seal tank 2 is provided with a water outlet which is connected with a sewage discharge pipe, the sewage discharge pipe is provided with a sewage discharge pump, and when the absorption liquid in the water seal tank 2 reaches the dischargeable standard, the sewage discharge pump is turned on.
When the ammonia water pressure regulator is used, the pressure for discharging ammonia gas is set to be 0.1kg, when the pressure gauge 10 shows that the pressure in the ammonia water storage tank 1 exceeds the set pressure, the controller 11 controls the valve of the air valve 8 to be opened, the ammonia gas enters the water seal tank 2 from the ammonia water storage tank 1 through the ammonia gas pipeline, the water level in the water seal tank 2 is 1200mm at the moment, and the ammonia gas is absorbed by water. The staff observes the absorption condition in the water seal tank 2 through the sight glass manhole to every 12h passes through the sample connection and gathers the absorption liquid and carry out the aqueous ammonia assay, when aqueous ammonia content is higher, opens air-blower 7, lets in fresh air. And (4) delivering the unabsorbed ammonia gas into the absorption tower 3 for reabsorption, and discharging the waste gas after the waste gas is qualified through absorption treatment. When the concentration of the ammonia in the absorption liquid in the water seal tank 2 reaches 3%, a water outlet and a sewage pump are opened, the absorption liquid flows to a dilute ammonia storage tank through a sewage discharge pipe to be stored and recycled, and when the ball float valve 5 detects the lowest position of the water level drop, a valve is opened for automatic water supplement.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the ordinary skilled person in the technical field of the present invention, without departing from the concept of the present application, a plurality of simple deductions or replacements can be made, all of which should be considered as belonging to the protection scope of the present invention.
Claims (6)
1. The utility model provides an aqueous ammonia storage tank gas recovery unit, includes aqueous ammonia storage tank (1) and water seal tank (2) through ammonia pipe connection, its characterized in that, be provided with blast gate (8) and check valve (9) on the ammonia pipeline, be provided with ball-cock assembly (5) in water seal tank (2), ball-cock assembly (5) are connected to storage water tank (4), be provided with air intake and air exit on water seal tank (2), air intake and air exit all are located more than the liquid level in water seal tank (2).
2. An ammonia storage tank gas recovery device as claimed in claim 1, wherein the water seal tank (2) is further provided with an acid inlet, and the acid inlet is connected to the acid storage tank (12) through a pipeline.
3. An ammonia storage tank gas recovery device as claimed in claim 1, characterized in that the air inlet is connected with a blower (7) and the air outlet is connected with the absorption tower (3).
4. An ammonia water storage tank gas recovery device according to claim 1, characterized in that a pressure gauge (10) is arranged on the ammonia water storage tank (1), and a controller (11) is arranged between the pressure gauge (10) and the air valve (8).
5. An ammonia water storage tank gas recovery device as claimed in claim 1, wherein a liquid level meter (6) is further arranged in the water seal tank (2), and a sight glass manhole and a sampling port are further arranged on the side wall of the water seal tank (2).
6. An ammonia water storage tank gas recovery device as claimed in claim 1, wherein the bottom of the water seal tank (2) is provided with a water outlet, the water outlet is connected with a drain pipe, and a drain pump is arranged on the drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922076360.0U CN211725257U (en) | 2019-11-27 | 2019-11-27 | Ammonia water storage tank gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922076360.0U CN211725257U (en) | 2019-11-27 | 2019-11-27 | Ammonia water storage tank gas recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211725257U true CN211725257U (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922076360.0U Active CN211725257U (en) | 2019-11-27 | 2019-11-27 | Ammonia water storage tank gas recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211725257U (en) |
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2019
- 2019-11-27 CN CN201922076360.0U patent/CN211725257U/en active Active
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