CN212091737U - Take liquid ammonia preparation aqueous ammonia device of steam companion heat - Google Patents
Take liquid ammonia preparation aqueous ammonia device of steam companion heat Download PDFInfo
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- CN212091737U CN212091737U CN202020352520.XU CN202020352520U CN212091737U CN 212091737 U CN212091737 U CN 212091737U CN 202020352520 U CN202020352520 U CN 202020352520U CN 212091737 U CN212091737 U CN 212091737U
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Abstract
The utility model provides a take liquid ammonia preparation aqueous ammonia device of steam heat tracing, including liquid pipe-line system, the aqueous ammonia mixes the preparation unit, heat transfer unit, steam heat tracing system and automatic control unit, liquid pipe-line system includes liquid ammonia inlet pipe way, the desalination pipeline, cooling water pipeline and aqueous ammonia go out the liquid pipeline, liquid ammonia inlet pipe way and desalination pipeline all mix the preparation unit with the aqueous ammonia and are connected, the aqueous ammonia mixes the preparation unit and is connected with heat transfer unit, aqueous ammonia goes out liquid pipeline and cooling water pipeline and all is connected with heat transfer unit, automatic control unit is connected with liquid pipe-line system and gas alarm, the aqueous ammonia mixes the preparation unit and is connected with steam heat tracing system, automatic control unit still accompanies hot system with steam and is connected. The utility model provides a take liquid ammonia preparation aqueous ammonia device of steam heat tracing when preparing the aqueous ammonia, increases the vaporization rate that has improved liquid ammonia effectively for the start-up operation of aqueous ammonia configuration device, and avoided the pipeline outward appearance frosting effectively.
Description
Technical Field
The utility model relates to a chemical industry equipment technical field especially relates to a take liquid ammonia preparation aqueous ammonia device of steam companion's heat.
Background
At present, in the process of preparing ammonia water by utilizing liquid ammonia, due to the influence of environmental temperature, when the liquid ammonia enters a mixer, the mixing effect is poor, the vaporization speed is slow, the operation is unstable, and the starting and mixing effects of an ammonia water preparation device are influenced. In addition, due to heat absorption in the liquid ammonia vaporization process, the outer surface of the pipeline is frosted, and the stable operation of the device is further influenced. Therefore, how to accelerate the vaporization process and ensure the stable operation of the device becomes a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a take liquid ammonia preparation aqueous ammonia device of steam heat tracing has solved and has adopted traditional aqueous ammonia preparation facilities, and during the preparation aqueous ammonia, vaporization rate is very slow and the unstable technological problem of operation, has improved the vaporization rate of liquid ammonia effectively for the start-up operation of aqueous ammonia configuration device, and avoided the pipeline outward appearance frosting effectively.
The utility model provides a take liquid ammonia of steam heat tracing to prepare aqueous ammonia device, includes that liquid pipe-line system, aqueous ammonia mix preparation unit, heat transfer unit, steam heat tracing system and automatic control unit, liquid pipe-line system includes liquid ammonia liquid inlet pipe way, desalination pipeline, cooling water pipeline and aqueous ammonia outlet pipe way, liquid ammonia inlet pipe way with desalination pipeline all with the aqueous ammonia mixes preparation unit and connects, the aqueous ammonia mix preparation unit with the heat transfer unit is connected, the aqueous ammonia outlet pipe way with the cooling water pipeline all with the heat transfer unit is connected, automatic control unit with liquid pipe-line system and gas alarm connect, the aqueous ammonia mix preparation unit with steam heat tracing headtotail, automatic control unit still with steam heat tracing headtotail.
The steam heat tracing system comprises a steam inlet valve and a steam outlet valve which are connected with the ammonia water mixing preparation unit, a pipeline system arranged in the ammonia water mixing preparation unit, a condensed water discharge valve arranged at the bottom of the ammonia water mixing preparation unit and a thermometer connected with the ammonia water mixing unit, wherein the pipeline system is connected with the steam inlet valve and the steam outlet valve which are connected with the condensed water discharge valve.
The liquid ammonia feed liquor pipeline is including the liquid ammonia feed liquor valve, liquid ammonia filter, liquid ammonia manometer, liquid ammonia flowmeter, liquid ammonia pneumatic valve, liquid ammonia governing valve, liquid ammonia check valve, the liquid ammonia thermometer that connect gradually, liquid ammonia feed liquor valve is connected with liquid ammonia storage device, the liquid ammonia thermometer with the aqueous ammonia mixes the preparation unit connection, the liquid ammonia flowmeter with the liquid ammonia pneumatic valve respectively with the automatic control unit is connected.
The desalination water pipeline comprises a desalination water inlet valve, a desalination water filter, a desalination water pressure gauge, a desalination water flowmeter, a desalination water regulating valve and a desalination water check valve which are sequentially connected, the desalination water inlet valve is connected with a desalination water storage device, the desalination water check valve is connected with an ammonia water mixing preparation unit, and the desalination water flowmeter is connected with an automatic control unit.
The ammonia water mixing preparation unit adopts a pipeline mixer, the outlet end of the liquid ammonia inlet pipeline and the outlet end of the desalination pipeline are respectively connected with the inlet end of the pipeline mixer, and the outlet end of the pipeline mixer is connected with the heat exchange unit.
The heat exchange unit adopts a plate-changing heat exchanger, one end of the heat exchanger is connected with the ammonia water mixing preparation unit, and the other end of the heat exchanger is connected with the cooling water pipeline and the ammonia water outlet pipeline.
The ammonia water drain pipe comprises an ammonia water temperature transmitter, an ammonia water pressure transmitter, an ammonia water drain valve, an ammonia water concentration meter and a sampling valve which are connected in sequence, wherein the ammonia water temperature transmitter, the ammonia water pressure transmitter and the ammonia water concentration meter are all connected with the automatic control unit.
The cooling water pipeline comprises a water inlet pipeline and a water outlet pipeline, the water inlet pipeline comprises a cooling water inlet valve, a cooling water flow switch and a cooling water inlet thermometer which are sequentially connected, the cooling water inlet valve is connected with an external water tank, the cooling water inlet thermometer is connected with the plate heat exchanger, and the cooling water flow switch is connected with the automatic control unit;
the water outlet pipeline comprises a cooling water outlet thermometer and a cooling water outlet valve, the cooling water outlet thermometer is connected with the plate heat exchanger, and the cooling water outlet valve is connected with an external bearing device.
The utility model discloses reach following effect of showing:
(1) the preparation device has simple structure, meets the requirements of automatically and efficiently preparing ammonia water, ensures the safety of the operation environment, and avoids the problems of poor mixing effect of liquid ammonia and desalted water, unstable operation and the like;
(2) the steam heat tracing system can improve the vaporization speed of the liquid ammonia, accelerate the starting operation of the ammonia water preparation device and effectively avoid the frosting of the outer surface of the pipeline;
(3) the utility model discloses a sled dress equipment, simple to operate, easy operation, stable in technique, long service life.
Drawings
FIG. 1 is a schematic view of a steam tracing system in an embodiment of the present invention.
Wherein the reference numerals are: 1. a liquid ammonia inlet valve; 2. a desalted water inlet valve; 3. a cooling water inlet valve; 4. a cooling water outlet valve; 5. an ammonia water outlet valve; 6. a steam inlet valve; 7. a vapor outlet valve; 8. a sampling valve; 9. a liquid ammonia regulating valve; 10. a desalted water regulating valve; 11. a liquid ammonia check valve; 12. a desalted water check valve; 13. a liquid ammonia pneumatic valve; 14. a liquid ammonia filter; 15. a desalted water filter; 16. a liquid ammonia flow meter; 17. a desalted water flow meter; 18. a liquid ammonia pressure gauge; 19. a desalted water pressure gauge; 20. a cooling water inlet pressure gauge; 21. a liquid ammonia thermometer; 22. a cooling water inlet thermometer; 23. a cooling water outlet thermometer; 24. a cooling water flow switch; 25. an ammonia water temperature transmitter; 26. an ammonia pressure transmitter; 27. an ammonia water concentration meter; 28. a thermometer; 29. a plate heat exchanger; 30. an ammonia water mixing preparation unit; 31. an automatic control unit; 32. a gas alarm; 33. a condensed water discharge valve.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is described below by way of specific embodiments.
Referring to fig. 1, a device for preparing ammonia water from liquid ammonia with steam heat tracing, including a liquid piping system, an ammonia water mixing preparation unit, a heat exchange unit, a steam heat tracing system and an automatic control unit 31, the liquid piping system includes a liquid ammonia inlet pipe, a desalination pipe, a cooling water pipe and an ammonia water outlet pipe, the liquid ammonia inlet pipe and the desalination pipe are all connected with the ammonia water mixing preparation unit, the ammonia water mixing preparation unit is connected with the heat exchange unit, the ammonia water outlet pipe and the cooling water pipe are all connected with the heat exchange unit, the automatic control unit 31 is connected with the liquid piping system and a gas alarm 32, the ammonia water mixing preparation unit is connected with the steam heat tracing system, and the automatic control unit 31 is further connected with the steam heat tracing system.
The steam heat tracing system comprises a steam inlet valve and a steam outlet valve which are connected with the ammonia water mixing preparation unit, a pipeline system arranged in the ammonia water mixing preparation unit, a condensed water discharge valve arranged at the bottom of the ammonia water mixing preparation unit and a thermometer connected with the ammonia water mixing unit, wherein the pipeline system is connected with the steam inlet valve and the steam outlet valve which are connected with the condensed water discharge valve.
The working principle of the steam heat tracing system in the patent is that certain heat is emitted through a heat tracing medium, and the heat loss of a heat traced part is supplemented through indirect heat exchange so as to meet the working requirements of temperature rise, heat preservation or freeze prevention.
The liquid ammonia liquid inlet pipeline comprises a liquid ammonia liquid inlet valve 1, a liquid ammonia filter 14, a liquid ammonia pressure gauge 18, a liquid ammonia flow meter 16, a liquid ammonia pneumatic valve 13, a liquid ammonia regulating valve 9, a liquid ammonia check valve 11 and a liquid ammonia thermometer 21 which are connected in sequence, the liquid ammonia liquid inlet valve 1 is connected with a liquid ammonia storage device, the liquid ammonia thermometer 21 is connected with an ammonia water mixing preparation unit,
the liquid ammonia flow meter 16 and the liquid ammonia pneumatic valve 13 are connected to an automatic control unit 31, respectively.
The desalted water pipeline comprises a desalted water inlet valve 2, a desalted water filter 15, a desalted water pressure gauge 19, a desalted water flow meter 17, a desalted water regulating valve 10 and a desalted water check valve 12 which are sequentially connected, the desalted water inlet valve 2 is connected with a desalted water storage device, the desalted water check valve 12 is connected with an ammonia water mixing preparation unit, and the desalted water flow meter 17 is connected with an automatic control unit 31.
The ammonia water mixing preparation unit adopts a pipeline type mixer 30, the outlet end of a liquid ammonia liquid inlet pipeline and the outlet end of a desalted water pipeline are respectively connected with the inlet end of the pipeline type mixer 30, and the outlet end of the pipeline type mixer 30 is connected with the heat exchange unit.
The heat exchange unit adopts a plate-changing type heat exchanger 29, one end of the heat exchanger is connected with the ammonia water mixing preparation unit, and the other end of the heat exchanger is connected with the cooling water pipeline and the ammonia water outlet pipeline.
The ammonia water outlet pipeline comprises an ammonia water temperature transmitter 25, an ammonia water pressure transmitter 26, an ammonia water outlet valve 5, an ammonia water concentration meter 27 and a sampling valve 8 which are connected in sequence, and the ammonia water temperature transmitter 25, the ammonia water pressure transmitter 26 and the ammonia water concentration meter 27 are all connected with an automatic control unit 31.
The cooling water pipeline comprises a water inlet pipeline and a water outlet pipeline, the water inlet pipeline comprises a cooling water inlet valve 3, a cooling water flow switch 24 and a cooling water inlet thermometer 22 which are sequentially connected, the cooling water inlet valve 3 is connected with an external water tank, the cooling water inlet thermometer 22 is connected with a plate heat exchanger 29, and the cooling water flow switch 24 is connected with an automatic control unit 31;
the water outlet pipeline comprises a cooling water outlet thermometer 23 and a cooling water outlet valve 4, the cooling water outlet thermometer 23 is connected with the plate heat exchanger 29, and the cooling water outlet valve 4 is connected with an external bearing device.
The utility model discloses specific working process:
before the system operates, the cooling water pipeline and the finished product ammonia water pipeline are firstly opened, the opening degree of the cooling water inlet valve 3 is enough, and the flow of cooling water in the pipe is ensured to meet the operation requirement. The cooling water inlet valve 3 and the cooling water outlet valve 4 are strictly closed during operation. Opening the liquid outlet valve of the ammonia water pipeline, closing the sampling valve 8, and opening the sampling valve 8 only when sampling;
after cooling water and a finished product ammonia water pipeline are required to be ensured to be normally opened, a desalted water pipeline and a liquid ammonia pipeline can be opened, the flow rates of desalted water and liquid ammonia are respectively controlled by adjusting a desalted water adjusting valve 10 and a liquid ammonia adjusting valve 9, and the flow rate values can be measured and displayed through a desalted water flow meter 17 and a liquid ammonia flow meter 16;
the ammonia water mixing preparation unit adopts a pipeline mixer 30, and liquid ammonia and desalted water are uniformly mixed under the action of the mixer 30;
the heat exchange unit adopts a plate heat exchanger 29, so that heat generated by mixing liquid ammonia and desalted water can be quickly and efficiently replaced;
the steam tracing system comprises a steam inlet valve 6, a steam outlet valve 7, a thermometer 28 and a condensed water discharge valve 33, when the temperature displayed by the thermometer 28 is lower than 10 ℃, the steam tracing system is manually started, and the condensed water discharge valve 33 is periodically opened to discharge the condensed water of the system.
The temperature of the cooling water inlet and outlet is read by a cooling water inlet thermometer 22 and a cooling water outlet thermometer 23, and the temperature of a liquid ammonia pipeline is read by a liquid ammonia temperature thermometer 28;
the desalted water pipeline is provided with a desalted water pressure gauge 19, and the liquid ammonia pipeline is provided with a liquid ammonia pressure gauge 18 for measuring the pressure of the pipeline;
the ammonia water pipeline is matched with an ammonia water pressure transmitter 26, an ammonia water temperature transmitter 25 and an ammonia water concentration meter 27, and the pressure, the temperature and the concentration of the finished ammonia water solution are monitored in real time;
the liquid ammonia pipeline sets up liquid ammonia pneumatic valve 13, and for the on-state during normal operating, when arbitrary measured value reached the setting value in aqueous ammonia pressure transmitter 26, aqueous ammonia temperature transmitter 25, aqueous ammonia concentration meter 27, cooling water flow switch 24, the toxic gas alarm 32, automatic control unit 31 closed liquid ammonia pneumatic valve 13 with the interlocking to the assurance system is in safe state. The automatic control unit 31 automatically adjusts the flow of liquid ammonia and desalted water according to the concentration of ammonia water displayed by the concentration meter of the finished ammonia water pipeline, prepares ammonia water with required concentration according to requirements, and controls the start and stop of the steam heat tracing system by measuring the temperature of the temperature measuring point of the ammonia water mixing preparation unit.
The technical features that the utility model has not been described can be realized through or adopt prior art, and no longer give unnecessary details here, and of course, the above-mentioned explanation is not right the utility model discloses a restriction, the utility model discloses also not only be limited to the above-mentioned example, ordinary skilled person in this technical field is in the utility model discloses a change, modification, interpolation or replacement made in the essential scope also should belong to the utility model discloses a protection scope.
Claims (8)
1. The utility model provides a take liquid ammonia of steam heat tracing to prepare aqueous ammonia device, its characterized in that, mixes preparation unit, heat transfer unit, steam heat tracing system and automatic control unit including liquid pipe-line system, aqueous ammonia, liquid pipe-line system includes liquid ammonia admission pipeline, desalination pipeline, cooling water pipeline and aqueous ammonia play liquid pipeline, liquid ammonia admission pipeline with desalination pipeline all with the aqueous ammonia mixes preparation unit connection, the aqueous ammonia mixes preparation unit with the heat transfer unit is connected, the aqueous ammonia go out the liquid pipeline with the cooling water pipeline all with the heat transfer unit is connected, automatic control unit with liquid pipe-line system and gas alarm are connected, the aqueous ammonia mix preparation unit with the heat tracing system connects, automatic control unit still with the steam heat tracing system is connected.
2. The apparatus for preparing ammonia water with steam tracing according to claim 1, wherein the steam tracing system comprises a steam inlet valve and a steam outlet valve connected to the ammonia water mixing preparation unit, a piping system disposed inside the ammonia water mixing preparation unit, a condensed water discharge valve disposed at the bottom of the ammonia water mixing preparation unit, and a thermometer connected to the ammonia water mixing unit, the piping system being connected to the steam inlet valve, the steam outlet valve, and the condensed water discharge valve.
3. The device for preparing ammonia water with steam tracing of claim 2, wherein the liquid ammonia inlet pipeline comprises a liquid ammonia inlet valve, a liquid ammonia filter, a liquid ammonia pressure gauge, a liquid ammonia flow meter, a liquid ammonia pneumatic valve, a liquid ammonia regulating valve, a liquid ammonia check valve and a liquid ammonia thermometer which are connected in sequence, the liquid ammonia inlet valve is connected with a liquid ammonia storage device, the liquid ammonia thermometer is connected with the ammonia water mixing preparation unit, and the liquid ammonia flow meter and the liquid ammonia pneumatic valve are respectively connected with the automatic control unit.
4. The apparatus for preparing ammonia water from liquid ammonia with steam tracing according to claim 3, wherein the desalted water line comprises a desalted water inlet valve, a desalted water filter, a desalted water pressure gauge, a desalted water flow meter, a desalted water regulating valve, and a desalted water check valve, which are connected in sequence, wherein the desalted water inlet valve is connected to a desalted water storage device, the desalted water check valve is connected to the ammonia water mixing preparation unit, and the desalted water flow meter is connected to the automatic control unit.
5. The apparatus for preparing ammonia water with steam tracing of claim 4, wherein the ammonia water mixing preparation unit is a pipeline mixer, the outlet end of the liquid ammonia inlet pipeline and the outlet end of the desalted water pipeline are respectively connected with the inlet end of the pipeline mixer, and the outlet end of the pipeline mixer is connected with the heat exchange unit.
6. The apparatus for preparing ammonia water from liquid ammonia with steam tracing as claimed in claim 5, wherein said heat exchange unit is a plate-changing heat exchanger, one end of said heat exchanger is connected to the ammonia water mixing preparation unit, and the other end is connected to the cooling water line and the ammonia water outlet line.
7. The device for preparing ammonia water from liquid ammonia with steam heat tracing of claim 6, wherein the ammonia water outlet pipeline comprises an ammonia water temperature transmitter, an ammonia water pressure transmitter, an ammonia water outlet valve, an ammonia water concentration meter and a sampling valve which are connected in sequence, and the ammonia water temperature transmitter, the ammonia water pressure transmitter and the ammonia water concentration meter are all connected with the automatic control unit.
8. The apparatus for preparing ammonia water from liquid ammonia with steam heat tracing as claimed in claim 7, wherein said cooling water line comprises a water inlet line and a water outlet line, said water inlet line comprises a cooling water inlet valve, a cooling water flow switch and a cooling water inlet thermometer connected in sequence, said cooling water inlet valve is connected with an external water tank, said cooling water inlet thermometer is connected with said plate heat exchanger, said cooling water flow switch is connected with said automatic control unit;
the water outlet pipeline comprises a cooling water outlet thermometer and a cooling water outlet valve, the cooling water outlet thermometer is connected with the plate heat exchanger, and the cooling water outlet valve is connected with an external bearing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020352520.XU CN212091737U (en) | 2020-03-19 | 2020-03-19 | Take liquid ammonia preparation aqueous ammonia device of steam companion heat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020352520.XU CN212091737U (en) | 2020-03-19 | 2020-03-19 | Take liquid ammonia preparation aqueous ammonia device of steam companion heat |
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| CN212091737U true CN212091737U (en) | 2020-12-08 |
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| CN202020352520.XU Active CN212091737U (en) | 2020-03-19 | 2020-03-19 | Take liquid ammonia preparation aqueous ammonia device of steam companion heat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117253024A (en) * | 2023-11-17 | 2023-12-19 | 山东海晟盐业有限公司 | Industrial salt quality inspection control method and system based on machine vision |
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2020
- 2020-03-19 CN CN202020352520.XU patent/CN212091737U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117253024A (en) * | 2023-11-17 | 2023-12-19 | 山东海晟盐业有限公司 | Industrial salt quality inspection control method and system based on machine vision |
| CN117253024B (en) * | 2023-11-17 | 2024-02-06 | 山东海晟盐业有限公司 | Industrial salt quality inspection control method and system based on machine vision |
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