CN216457919U - Constant liquid level combined nitrogen oxide compressor set separator system - Google Patents
Constant liquid level combined nitrogen oxide compressor set separator system Download PDFInfo
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- CN216457919U CN216457919U CN202121965791.3U CN202121965791U CN216457919U CN 216457919 U CN216457919 U CN 216457919U CN 202121965791 U CN202121965791 U CN 202121965791U CN 216457919 U CN216457919 U CN 216457919U
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Abstract
The utility model relates to a constant liquid level combined nitrogen oxide compressor set separator system, which is suitable for nitrotoluene manufacturing industries of chemical industry, light industry and medicine. A constant liquid level combined nitric oxide compressor component separator system comprises a separator body, wherein the inside of the separator body is divided into a separation cavity and a liquid storage cavity, and the separation cavity and the liquid storage cavity are separated by liquid level height control; the separator is characterized in that a gas-liquid inlet pipe is further arranged on the separator body, the gas-liquid inlet pipe is located above the separation cavity, and a liquid stabilizing plate which is horizontally arranged is further arranged between the separation cavity and the gas-liquid inlet pipe. The utility model solves the problem of abnormal unit operation caused by unstable liquid level of the gas-liquid separator of the compressor unit by additionally arranging the liquid level height control plate and the liquid stabilizing plate.
Description
Technical Field
The utility model relates to a constant liquid level combined nitric oxide compressor component separator system, which is suitable for nitrotoluene manufacturing industries of chemical industry, light industry and medicine.
Background
The compressor set is commonly used for compressing nitric oxide gas in chemical industry, light industry and pharmaceutical industry, and the gas-liquid separator of the compressor set has the problems of unstable liquid level and high gas temperature at the outlet of the separator, which causes abnormal operation of the compressor set. The traditional design process is as follows: the gas-liquid mixture at the outlet of the compressor enters a separator, gas-liquid separation is carried out in the separator, and liquid free falling bodies are flushed into the liquid level of the separator; the gas directly enters an outlet of the separator and enters a pipeline; the separator is provided with a magnetic turning plate or a differential pressure type liquid level meter, and the liquid level signal is used as a control parameter, and the outlet regulating valve of the separator automatically regulates to keep the liquid level of the separator within a specified range. The current production conditions mainly have the following problems:
1. the liquid level of the inlet liquid is directly flushed into the liquid level in a free falling mode, and the fluctuation of the liquid level in the separator is large.
2. Because the pressure in the separator reaches 0.65MPa, the pressure behind an outlet regulating valve of the separator is less than 0.1MPa, the pressure difference between the front of the regulating valve and the rear of the regulating valve is up to 0.55MPa, the regulating valve is easy to leak internally, and under the condition of large internal and external pressure difference, the liquid level control of the separator is difficult, a serious person triggers a compressor unit interlocking parking system to cause the automatic parking of the unit, the liquid level of the separator fluctuates greatly for a long time, so that the bearing of the compressor is damaged, and the liquid leakage and the air suction quantity of the unit are unstable.
3. The gas phase of the separator has an exothermic reaction of nitric oxide and oxygen, so that the temperature of the gas at the outlet pipe is abnormally increased, and the difficulty is brought to the temperature control of the first pedal of the nitric oxide absorption tower of the follow-up equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a constant liquid level combined nitric oxide compressor set separator system, which is used for solving the problem that a compressor set gas-liquid separator has unstable liquid level to cause abnormal operation of the compressor set.
In order to achieve the purpose, the utility model provides the following technical scheme:
a constant liquid level combined nitric oxide compressor unit separator system, comprising a separator body, characterized in that: the separator body is internally divided into a separation cavity 1 and a liquid storage cavity 2, and the separation cavity 1 and the liquid storage cavity 2 are separated by a liquid level height control plate 4; the separator is characterized in that a gas-liquid inlet pipe 6 is further arranged on the separator body, the gas-liquid inlet pipe 6 is located above the separation cavity 1, and a liquid stabilizing plate 5 which is horizontally arranged is further arranged between the separation cavity 1 and the gas-liquid inlet pipe 6.
Furthermore, a plurality of through holes which are uniformly distributed are formed in the liquid stabilizing plate 5.
Further, the height of the liquid stabilizing plate 5 is flush with the upper edge of the liquid level height control plate 4.
Further, a gas outlet pipe 7 is arranged at the top of the separator body, the gas outlet pipe 7 is located above the liquid storage cavity 2, and a cooler 3 is arranged on the gas outlet pipe 7.
Furthermore, a liquid discharging pipe 9 is also arranged on the separator body and connected to the lower part of the separation cavity 1.
Furthermore, the separator body is also provided with a circulating pipe 12 which is connected with the middle part of the separation cavity 1.
Furthermore, a liquid outlet pipe 8 is arranged on the separator body and connected to the lower part of the liquid storage cavity 2.
Further, a liquid outlet regulating valve 10 is arranged on the liquid outlet pipe 8.
Further, still be equipped with the level gauge on the separator body for detect the liquid level in the stock solution chamber 2.
Further, the liquid level meter is a remote transmission magnetic turning plate liquid level meter 11.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the utility model solves the problem of abnormal unit operation caused by unstable liquid level and high outlet gas temperature of the gas-liquid separator of the compressor unit by additionally arranging the liquid level height control plate, the liquid stabilizing plate, the cooler and the like. The constant liquid level separation and temperature reduction of the compressor set separator are realized. The shutdown damage is reduced, the equipment maintenance cost is reduced, and the production cost is reduced.
(2) A liquid level height control plate, a liquid stabilizing plate, a cooler and the like are additionally arranged on the basis of the original separator system, so that the change and the investment are small; the process is simple, and daily field operators are not needed; the device has excellent use performance, can keep the liquid level of the separator constant, does not have the problem of liquid level evacuation in a separation cavity of the separator, has low temperature of nitric oxide gas at the outlet of the separator, and is beneficial to the operation of a nitric oxide absorption tower; and a foundation is laid for realizing the fully unmanned operation of the nitrogen oxide absorption operation system.
(3) After the separator system is put into operation, the nitrogen oxide compressor unit chain stopping fault does not occur, the compressor unit operates stably, the equipment faults are reduced, the maintenance cost is reduced, and the annual stopping loss is more than 50 ten thousand yuan.
(4) The utility model also has popularization benefit, can improve the corresponding production line, and can carry out similar improvement especially under similar special working conditions of petroleum, chemical industry, medicine, light industry and the like.
Drawings
FIG. 1 is a schematic diagram of a constant level combined nitric oxide compressor train separator system.
In the figure, a separation cavity 1, a liquid storage cavity 2, a cooler 3, a liquid level height control plate 4, a liquid stabilizing plate 5, a gas-liquid inlet pipe 6, a gas outlet pipe 7, a liquid outlet pipe 8, a liquid discharging pipe 9, a liquid outlet regulating valve 10, a remote transmission magnetic turning plate liquid level meter 11 and a circulating pipe 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a constant liquid level combined nitric oxide compressor set separator system comprises a separator body, wherein the inside of the separator body is divided into a separation cavity 1 (for separating gas from liquid) and a liquid storage cavity 2 (for storing liquid overflowing from the separation cavity 1), and the separation cavity 1 and the liquid storage cavity 2 are separated by a liquid level height control plate 4; the separation chamber 1 is also provided with a liquid stabilizing plate 5 which is horizontally arranged, the height of the liquid stabilizing plate is flush with the upper edge of the liquid level height control plate 4, and a plurality of through holes which are uniformly distributed are formed in the liquid stabilizing plate 5. Wherein: the liquid level height control plate 4 is equivalent to an overflow plate and is made of 321 materials and used for constant control of the liquid level height of the separation cavity 1; the liquid stabilizing plates 5 and 321 are made of materials and used for preventing liquid from falling to impact the liquid level and keeping the liquid level stable.
The separator body is also provided with a gas-liquid inlet pipe 6, a liquid discharge pipe 9, a circulating pipe 12, a gas outlet pipe 7 and a liquid outlet pipe 8, wherein:
the gas-liquid inlet pipe 6, 321 is made of materials and used for receiving a gas-liquid mixture from the compressor; the gas-liquid inlet pipe 6 is positioned above the liquid stabilizing plate 5.
The liquid discharging pipe 9 and 321 is made of materials, liquid is filled into the separator body during cold starting, and the liquid discharging pipe is used for discharging liquid in the separation cavity 1 during maintenance; is connected to the lower part of the separation chamber 1.
The circulation pipe 12, 321 is made of a material for returning the liquid to the compressor, and is connected to the middle portion of the separation chamber 1 below the upper edge of the liquid level height control plate 4.
The gas outlet pipe 7, 321 is made of materials and used for discharging and separating the cooled nitric oxide gas of the separator; the gas outlet pipe 7 is positioned at the top of the separator body, above the liquid storage cavity 2, and the gas outlet pipe 7 is also provided with a cooler 3. And the cooler 3 and 321 is made of materials and used for cooling the nitric oxide gas at the outlet of the separator.
The liquid outlet pipe 8, 321 is made of materials and used for the liquid leaving of the liquid storage cavity 2; the liquid outlet pipe 8 is connected with the lower part of the liquid storage cavity 2 and is provided with a liquid outlet regulating valve 10. The liquid outlet regulating valve 10 and 321 is made of materials and used for controlling the lowest liquid level of a liquid storage part in the separator body and preventing liquid from emptying and nitric oxide gas from emptying.
The separator body is also provided with a remote transmission magnetic turning plate liquid level meter 11 for detecting the liquid level in the liquid storage cavity 2. Is connected with the liquid outlet regulating valve 10 through a control system of an upper computer.
The basic principle of the above separator system is illustrated:
(1) the liquid level of the separation cavity 1 is controlled by the liquid level height control plate 4 in a height limiting manner, the liquid level on the side of the circulating pipe is kept constant by adopting the overflow principle, and finally the liquid pressure between the separation cavity 1 and the compressor is kept stable.
(2) The nitric oxide and oxygen in the air have oxidation exothermic reaction:
2NO+O2＝NO2△H＝-26.9kcal
through setting up cooler 3, reduce separator export nitrogen oxide gas temperature, reduce the temperature of follow-up nitrogen oxide absorption tower first floor column plate, guarantee that temperature condition is up to standard.
(3) The liquid stabilizing plate 5 is adopted to prevent the separated liquid falling quickly from impacting the liquid level, so that the kinetic energy before the separated liquid enters the liquid level is eliminated by damping, and the liquid level is kept stable.
The operation of the separator system described above is illustrated:
(1) working liquid is filled into the separation cavity 1 from the liquid discharging pipe 9, and the working liquid overflows into the liquid storage cavity 2 from the separation cavity 1 to reach the specified liquid level.
(2) The nitric oxide compressor is started, gas-liquid mixture from the compressor enters the separation cavity 1 through the gas-liquid inlet pipe 6, gas and liquid are automatically separated in the separation cavity 1, the gas gradually flows to the gas outlet pipe 7 at the upper part of the liquid storage cavity 2, the temperature gradually rises in the flowing process, the gas with the increased temperature flows into the cooler 3 to be cooled, and the cooled gas flows out of the separator system through the gas outlet pipe 7;
(3) after the gas and the liquid in the separation cavity 1 are automatically separated, the liquid naturally drips and collides with the liquid stabilizing plate 5 to eliminate kinetic energy, and the liquid stably flows into the liquid level in the separation cavity 1 from the through hole of the liquid stabilizing plate 5.
(4) The liquid level in the separation cavity 1 is higher than the liquid level height control plate 4 and then automatically overflows into the liquid storage cavity 2, and the liquid in the liquid storage cavity 2 leaves the liquid storage cavity 2 through the liquid outlet pipe 8 and the liquid outlet regulating valve 10.
(5) The liquid level in the liquid storage cavity 2 is detected by the remote transmission magnetic turning plate liquid level meter 11, a liquid level signal is transmitted to the liquid outlet regulating valve 10 through the DCS system, the opening degree of the liquid outlet regulating valve 10 is adjusted, and the liquid level in the liquid storage cavity 2 is guaranteed to be at a specified value.
(6) The liquid in the separation cavity 1 is circulated and returned to the nitrogen oxide compressor by the circulating pipe 12, so that the normal operation of the nitrogen oxide compressor set is ensured.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A constant liquid level combined nitric oxide compressor unit separator system, comprising a separator body, characterized in that: the separator body is internally divided into a separation cavity (1) and a liquid storage cavity (2), and the separation cavity (1) and the liquid storage cavity (2) are separated by a liquid level height control plate (4); the separator is characterized in that a gas-liquid inlet pipe (6) is further arranged on the separator body, the gas-liquid inlet pipe (6) is located above the separation cavity (1), and a liquid stabilizing plate (5) which is horizontally arranged is further arranged between the separation cavity (1) and the gas-liquid inlet pipe (6).
2. The constant level combination nitric oxide compressor train separator system of claim 1, wherein: and a plurality of through holes which are uniformly distributed are formed in the liquid stabilizing plate (5).
3. The constant liquid level combination nitric oxide compressor train separator system of claim 1 or 2, wherein: the height of the liquid stabilizing plate (5) is flush with the upper edge of the liquid level height control plate (4).
4. The constant level combination nitric oxide compressor train separator system of claim 1, wherein: the separator is characterized in that a gas outlet pipe (7) is arranged at the top of the separator body, the gas outlet pipe (7) is positioned above the liquid storage cavity (2), and a cooler (3) is arranged on the gas outlet pipe (7).
5. The constant level combination nitric oxide compressor train separator system of claim 1, wherein: the separator body is also provided with a liquid emptying pipe (9) which is connected with the lower part of the separation cavity (1).
6. The constant level combination nitric oxide compressor train separator system of claim 1, wherein: the separator body is also provided with a circulating pipe (12) which is connected to the middle part of the separation cavity (1).
7. The constant level combination nitric oxide compressor train separator system of claim 1, wherein: the separator body is also provided with a liquid outlet pipe (8) which is connected with the lower part of the liquid storage cavity (2).
8. The constant level combination nitric oxide compressor train separator system of claim 7, wherein: and a liquid outlet regulating valve (10) is arranged on the liquid outlet pipe (8).
9. The constant level combination nitric oxide compressor train separator system of claim 8, wherein: the separator body is also provided with a liquid level meter for detecting the liquid level in the liquid storage cavity (2).
10. The constant level combination nitric oxide compressor train separator system of claim 9, wherein: the liquid level meter is a remote transmission magnetic flap liquid level meter (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121965791.3U CN216457919U (en) | 2021-08-20 | 2021-08-20 | Constant liquid level combined nitrogen oxide compressor set separator system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121965791.3U CN216457919U (en) | 2021-08-20 | 2021-08-20 | Constant liquid level combined nitrogen oxide compressor set separator system |
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| Publication Number | Publication Date |
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| CN216457919U true CN216457919U (en) | 2022-05-10 |
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| CN202121965791.3U Active CN216457919U (en) | 2021-08-20 | 2021-08-20 | Constant liquid level combined nitrogen oxide compressor set separator system |
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2021
- 2021-08-20 CN CN202121965791.3U patent/CN216457919U/en active Active
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