CN211169874U - Negative pressure liquid ammonia device for reducing steam energy consumption - Google Patents
Negative pressure liquid ammonia device for reducing steam energy consumption Download PDFInfo
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- CN211169874U CN211169874U CN201921174190.3U CN201921174190U CN211169874U CN 211169874 U CN211169874 U CN 211169874U CN 201921174190 U CN201921174190 U CN 201921174190U CN 211169874 U CN211169874 U CN 211169874U
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Abstract
The utility model discloses a negative pressure liquid ammonia device for reducing steam energy consumption, which comprises an ammonia still and a steam ejector, wherein the steam ejector is arranged on the ammonia still, the ammonia still is provided with an ammonia water adding structure, an alkali adding structure and a cooling structure, and the cooling structure is provided with an ammonia water conveying structure; the ammonia water adds the structure, it mainly includes: an ammonia water raw material tank and an ammonia water raw material pump; the ammonia water raw material tank is connected to an ammonia water raw material pump through a liquid ammonia pipeline, and the ammonia water raw material pump is connected to the ammonia still through a liquid ammonia pipeline; the utility model relates to an ammonia distillation technology technical field, this reduce steam energy consumption negative pressure liquid ammonia device has very big reduction to the steam quantity, utilizes the negative pressure to reduce the boiling point of solution component to reduce distillation temperature, reduce the energy consumption.
Description
Technical Field
The utility model relates to an ammonia still process technical field specifically is a reduce steam energy consumption negative pressure liquid ammonia device.
Background
A large amount of ammonia water is formed in the primary cooling process of coke oven gas, wherein most of the ammonia water is used as circulating ammonia water to spray gas of a cooling gas collecting pipe, the redundant part of the ammonia water is called residual ammonia water, the content of the ammonia water is about 2.5-4 g/L, the ammonia water amount is about 15% of the amount of coal charged in a furnace generally, and is a main source of coking wastewater, and the part of the wastewater can be discharged only by being treated according to the requirement of environmental protection.
The production cost is reduced, energy is saved, emission is reduced, the problems become very important subjects of both countries and enterprises, the coking enterprises have very important significance in reasonably selecting ammonia distillation processes and related tower equipment, and the scheme is generated by deeply researching the problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to prior art's not enough, the utility model provides a reduce steam energy consumption negative pressure liquid ammonia device has solved the steam consumption of current traditional handicraft big, operating temperature is high, environmental pollution and serious corrosion scheduling problem.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the negative pressure ammonia still capable of reducing steam energy consumption comprises an ammonia still and a steam ejector, wherein the steam ejector is installed on the ammonia still, the ammonia still is provided with an ammonia water adding structure, an alkali adding structure and a cooling structure, and the cooling structure is provided with an ammonia water conveying structure;
the ammonia water adds the structure, it mainly includes: an ammonia water raw material tank and an ammonia water raw material pump;
the ammonia water raw material tank is connected to an ammonia water raw material pump through a liquid ammonia pipeline, and the ammonia water raw material pump is connected to a steam ejector in the ammonia still through a liquid ammonia pipeline.
Preferably, the base addition structure consists essentially of: an alkali tank and an alkali metering pump;
the alkali tank is connected with the alkali metering pump through an alkali liquor pipeline, and the alkali metering pump is connected with the steam ejector in the ammonia still through a liquid ammonia pipeline.
Preferably, the cooling structure mainly includes: a cooler and an ammonia separator;
the ammonia separator is arranged on the ammonia still, and the cooler is connected with the ammonia separator through an ammonia pipeline.
Preferably, the ammonia water conveying structure mainly comprises: an ammonia water tank and an ammonia water delivery pump;
the ammonia water tank is connected to the cooler through a liquid ammonia pipeline, and the ammonia water delivery pump is installed on the ammonia water tank.
Preferably, the cooler is connected to the steam ejector through an ammonia gas line.
Preferably, the ammonia still is provided with a liquid ammonia pump.
Advantageous effects
The utility model provides a reduce steam energy consumption negative pressure liquid ammonia device. The method has the following beneficial effects: the negative pressure liquid ammonia device for reducing the steam energy consumption has a great reduction effect on the steam consumption, and the boiling point of the solution components is reduced by utilizing the negative pressure, so that the distillation temperature is reduced, and the energy consumption is reduced.
Drawings
Fig. 1 is a schematic view of a flow structure of a device for reducing steam energy consumption and negative pressure liquid ammonia.
In the figure: 1-ammonia still; 2-an ammonia tank; 3-a cooler; 4-ammonia separator; 5-a steam ejector; 6-liquid ammonia pump; 7-ammonia water delivery pump; 8-ammonia raw material tank; 9-ammonia water raw material pump; 10-an alkali tank; 11-alkaline metering pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through a wire, and an appropriate controller and an appropriate encoder should be selected according to actual conditions to meet control requirements, and specific connection and control sequences should be obtained.
Example (b): according to the attached drawing 1, the steam ejector 5 is arranged in an ammonia still 1, the ammonia still 1 is provided with an ammonia water adding structure, an alkali adding structure and a cooling structure, and the cooling structure is provided with an ammonia water conveying structure; the ammonia water adds the structure, it mainly includes: an ammonia water raw material tank 8 and an ammonia water raw material pump 9; the ammonia water raw material tank 8 is connected to the ammonia water raw material pump 9 through a liquid ammonia pipeline, the ammonia water raw material pump 9 is connected to the steam ejector 5 in the ammonia still 1 through a liquid ammonia pipeline, and the ammonia still 1 is provided with a liquid ammonia pump 6.
From the above, it follows: when in use, raw material ammonia water enters an ammonia water tank 8, is pressurized by an ammonia water raw material pump 9 after coming out of the ammonia water tank 8, and is then conveyed into an ammonia still 1 through a liquid ammonia pipeline, the raw material ammonia water is sprayed from top to bottom in the ammonia still 1, the ammonia water is subjected to the heat of steam in a steam ejector 5 and the vacuum pumping negative pressure effect, the generated ammonia gas flows out from the upper part of the ammonia still 1 due to the volatilization characteristic of the ammonia water, the ammonia still wastewater enters a liquid ammonia pump 6 from the lower part of the ammonia still 1 through the liquid ammonia pipeline and is then discharged, and in addition, gases such as nitrogen, carbon dioxide, hydrogen sulfide and the like which are vacuumized out of the steam ejector 5 in the ammonia still 1 are discharged through the liquid ammonia pipeline after being pumped out through the ammonia;
the alkali addition structure mainly comprises: an alkali tank 10 and an alkali metering pump 11; the alkali tank 10 is connected with an alkali metering pump 11 through an alkali liquor pipeline, and the alkali metering pump 11 is connected with a steam ejector 5 in the ammonia still 1 through a liquid ammonia pipeline.
From the above, it follows: the alkali tank 10 conveys alkali liquor into a liquid ammonia pipeline through an alkali metering pump 11, and the alkali liquor is mixed with an ammonia water raw material and then enters the ammonia still 1 to decompose the fixed ammonium in the raw material ammonia water and reduce the ammonia nitrogen content in the wastewater.
The cooling structure mainly comprises: a cooler 3 and an ammonia separator 4; the ammonia separator 4 is installed on the ammonia still 1, the cooler 3 is connected to the ammonia separator 4 through an ammonia pipeline the ammonia water conveying structure mainly comprises: an ammonia water tank 2 and an ammonia water delivery pump 7; the ammonia water tank 2 is connected with the cooler 3 through a liquid ammonia pipeline, and the ammonia water delivery pump 7 is installed on the ammonia water tank 2.
From the above, it follows: the cooling water is conveyed to the ammonia gas separator 4 and the cooler 3 through the cooling water pipeline, after the heat exchange effect is completed, the cooling water is recycled from the cooling water pipeline, ammonia gas coming out of the ammonia still 1 is cooled by the ammonia gas separator 4 and the cooler 3 and then flows into the ammonia water tank 2, and then concentrated ammonia water is conveyed to a user access point through the ammonia water conveying pump 7.
As a preferred embodiment, further, the alkali addition structure mainly includes: an alkali tank 10 and an alkali metering pump 11;
the alkali tank 10 is connected with an alkali metering pump 11 through an alkali liquor pipeline, and the alkali metering pump 11 is connected with a steam ejector 5 in the ammonia still 1 through a liquid ammonia pipeline.
As a preferable aspect, further, the cooling structure mainly includes: a cooler 3 and an ammonia separator 4;
the ammonia separator 4 is arranged on the ammonia still 1, and the cooler 3 is connected with the ammonia separator 4 through an ammonia pipeline.
As a preferable scheme, further, the ammonia water delivery structure mainly comprises: an ammonia water tank 2 and an ammonia water delivery pump 7;
the ammonia water tank 2 is connected with the cooler 3 through a liquid ammonia pipeline, and the ammonia water delivery pump 7 is installed on the ammonia water tank 2.
As a preferred solution, the cooler 3 is further connected to the steam ejector 5 through an ammonia gas pipe.
Preferably, the ammonia still 1 is provided with a liquid ammonia pump 6.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The negative pressure liquid ammonia device capable of reducing steam energy consumption comprises an ammonia still (1) and a steam ejector (5), and is characterized in that the steam ejector (5) is installed in the ammonia still (1), the ammonia still (1) is provided with an ammonia water adding structure, an alkali adding structure and a cooling structure, and the cooling structure is provided with an ammonia water conveying structure;
the ammonia water adds the structure, it mainly includes: an ammonia water raw material tank (8) and an ammonia water raw material pump (9);
aqueous ammonia raw material groove (8) are connected in aqueous ammonia raw material pump (9) through the liquid ammonia pipeline, aqueous ammonia raw material pump (9) are connected in ammonia still (1) on steam ejector (5) through the liquid ammonia pipeline.
2. The negative pressure liquid ammonia device for reducing steam energy consumption of claim 1, wherein the alkali adding structure mainly comprises: an alkali tank (10) and an alkali metering pump (11);
the alkali tank (10) is connected with the alkali metering pump (11) through an alkali liquor pipeline, and the alkali metering pump (11) is connected with the steam ejector (5) in the ammonia still (1) through a liquid ammonia pipeline.
3. The negative pressure liquid ammonia device for reducing steam energy consumption as claimed in claim 1, wherein the cooling structure mainly comprises: a cooler (3) and an ammonia separator (4);
the ammonia separator (4) is arranged on the ammonia still (1), and the cooler (3) is connected to the ammonia separator (4) through an ammonia pipeline.
4. The negative pressure liquid ammonia device for reducing steam energy consumption of claim 1, wherein the ammonia water delivery structure mainly comprises: an ammonia water tank (2) and an ammonia water delivery pump (7);
the ammonia water tank (2) is connected to the cooler (3) through a liquid ammonia pipeline, and the ammonia water delivery pump (7) is installed on the ammonia water tank (2).
5. Negative pressure liquid ammonia plant for reducing steam energy consumption according to claim 3, characterized in that the cooler (3) is connected to the steam ejector (5) by means of an ammonia gas line.
6. Negative pressure liquid ammonia plant for reducing steam energy consumption according to claim 1, characterized in that the ammonia still (1) is provided with a liquid ammonia pump (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921174190.3U CN211169874U (en) | 2019-07-25 | 2019-07-25 | Negative pressure liquid ammonia device for reducing steam energy consumption |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921174190.3U CN211169874U (en) | 2019-07-25 | 2019-07-25 | Negative pressure liquid ammonia device for reducing steam energy consumption |
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| CN211169874U true CN211169874U (en) | 2020-08-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2608159A (en) * | 2021-06-24 | 2022-12-28 | Process Ltd | A system and method for recovering ammonia from an ammonia-containing liquid |
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2019
- 2019-07-25 CN CN201921174190.3U patent/CN211169874U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2608159A (en) * | 2021-06-24 | 2022-12-28 | Process Ltd | A system and method for recovering ammonia from an ammonia-containing liquid |
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