CN219356136U - Intelligent multi-source ammonia distribution device - Google Patents
Intelligent multi-source ammonia distribution device Download PDFInfo
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- CN219356136U CN219356136U CN202223611389.2U CN202223611389U CN219356136U CN 219356136 U CN219356136 U CN 219356136U CN 202223611389 U CN202223611389 U CN 202223611389U CN 219356136 U CN219356136 U CN 219356136U
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Abstract
The utility model discloses an intelligent multi-source ammonia distribution device which comprises an ammonia distribution solution tank, a concentrated ammonia water storage tank and a PLC (programmable logic controller), wherein desalted water, the concentrated ammonia water storage tank and denitration ammonia gas are respectively introduced, two ammonia supply sources of the concentrated ammonia water storage tank and the denitration ammonia gas are mutually switched, the sustainability and reliability of the ammonia supply source of the ammonia distribution solution tank are ensured, the conductivity and liquid level signals inside the ammonia distribution solution tank are continuously collected by the PLC through a conductivity sensor and a liquid level meter arranged in the ammonia distribution solution tank, and meanwhile, an electric switch valve of the desalted water, an electric switch valve of the ammonia supply and a booster pump of the concentrated ammonia water are controlled by the PLC, so that the conductivity and the liquid level in the ammonia distribution solution tank reach required set values, and the stability of the concentration and the liquid level of the ammonia distribution solution tank is ensured.
Description
Technical Field
The utility model relates to the technical field of chemical ammonia distribution of a water vapor system of a power plant, in particular to an intelligent multi-source ammonia distribution device.
Background
Ammonia is the most commonly used alkalizing agent for metal corrosion protection in thermodynamic systems, and is the most economical and practical method of preventing corrosion of metals by feedwater. In a power plant, in order to slow down the metal corrosion of a water system, reduce the content of corrosion products in the water supply system, reduce the deposition of oxides of structural materials in the water vapor system, and generally adopt ammonia to adjust the pH value of the boiler feed water so as to prolong the chemical cleaning time interval of the boiler and ensure the safe and economic operation of a machine furnace. The persistence and stability of the ammonia water level and concentration of the ammonia solution tank are the key for ensuring the PH value of boiler feedwater, the conductivity is a signal with high reliability by controlling the ammonia solution concentration of the ammonia solution tank, a conversion formula is arranged between the ammonia water concentration and the conductivity, and C=0.8× (3.534593S) 3 -2131.29S 2 +701603S)×10 -9 (%) so that the concentration of ammonia water can be accurately controlled by controlling the conductivity of ammonia water in the ammonia-preparing solution tank.
At present, the ammonia water preparation of a power plant is manually operated, the purchased concentrated ammonia water is added to the ammonia solution preparation tank according to a proportion during ammonia preparation, and then desalted water is supplemented, so that the concentration of the ammonia water solution in the ammonia solution preparation tank is often changed due to different concentration of the concentrated ammonia water in each batch, and meanwhile, ammonia gas is diffused between dosing chambers during manual ammonia preparation, so that the respiratory tract is severely stimulated, the human health is endangered, and the working difficulty of operators is greatly increased.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides an intelligent multi-source ammonia distribution device. The device ensures the sustainability and reliability of ammonia sources of the ammonia preparing solution tank through the concentrated ammonia water storage tank and the denitration ammonia gas; meanwhile, the conductivity of the ammonia water in the ammonia solution preparing tank is monitored remotely, so that the stability of the concentration of the ammonia water in the ammonia solution preparing tank is ensured.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an intelligent multi-source ammonia dispensing device comprising:
the ammonia solution preparing tank is sequentially provided with a desalted water stainless steel ball valve, a desalted water Y-shaped filter, a desalted water electric switch valve front stainless steel ball valve, a desalted water electric switch valve rear stainless steel ball valve, a desalted water check valve, a desalted water to first ammonia solution preparing tank stainless steel ball valve, an ammonia gas pressure gauge, an ammonia gas Y-shaped filter, an ammonia supply electric switch valve front stainless steel ball valve, an ammonia supply electric switch valve rear stainless steel ball valve, an ammonia supply check valve and an ammonia supply to second ammonia solution preparing tank stainless steel ball valve on a pin-removing ammonia gas coming pipeline communicated with the ammonia solution preparing tank; the ammonia solution preparing tank is provided with a liquid level meter and an ammonia water conductivity sensor;
the concentrated ammonia water storage tank is connected with the rear part of the ammonia gas Y-shaped filter and the front part of the stainless steel ball valve in front of the ammonia supply electric switch valve through an ammonia water pipeline, and the concentrated ammonia water stainless steel ball valve, the concentrated ammonia gas Y-shaped filter, the concentrated ammonia water booster pump outlet pressure gauge, the concentrated ammonia water booster pump outlet check valve and the concentrated ammonia water booster pump outlet stainless steel ball valve are sequentially arranged on the ammonia water pipeline;
and the PLC is electrically connected with the demineralized water electric switch valve, the ammonia supply electric switch valve, the liquid level meter, the ammonia water conductivity sensor and the concentrated ammonia water booster pump.
Optionally, the PLC is connected with the touch display screen.
Optionally, the ammonia pressure gauge is connected with an ammonia gas inlet pipeline through an ammonia pressure gauge stop valve.
Optionally, the outlet pressure gauge of the concentrated ammonia water booster pump is connected with the ammonia water pipeline through the stop valve of the outlet pressure gauge of the concentrated ammonia water booster pump.
Optionally, the device also comprises a stainless steel ball valve connected in parallel with the front of the demineralized water electric switch valve, the demineralized water electric switch valve and a demineralized water electric switch valve bypass valve at two ends of the stainless steel ball valve behind the demineralized water electric switch valve.
Optionally, the device also comprises a stainless steel ball valve connected in parallel before the ammonia supply electric switch valve, the ammonia supply electric switch valve and an ammonia supply electric switch valve bypass valve at two ends of the stainless steel ball valve behind the ammonia supply electric switch valve.
Optionally, the device also comprises a bypass valve of the concentrated ammonia booster pump connected in parallel at two ends of the concentrated ammonia booster pump.
Optionally, the ammonia water conductivity sensor is arranged at the bottom of the ammonia solution preparing tank.
Compared with the prior art, the utility model has the following advantages:
the intelligent multi-source ammonia distribution device is characterized in that an ammonia distribution solution tank is connected with a concentrated ammonia water storage tank through a pipeline to form a pipeline system, the intelligent multi-source ammonia distribution device is simple and practical, easy to operate and high in control precision, an ammonia supply mode of the concentrated ammonia water storage tank and a denitration ammonia supply mode can be mutually switched, and the sustainability and reliability of an ammonia source of the ammonia distribution solution tank are ensured. Compared with the existing ammonia preparation system, the ammonia preparation system has the advantages that two modes of ammonia supply of the concentrated ammonia water storage tank and ammonia supply of the denitration ammonia are added, a stable ammonia supply source is provided for the ammonia preparation solution tank, meanwhile, the ammonia water conductivity sensor of the ammonia preparation solution tank is added, the ammonia water concentration of the ammonia preparation solution tank is continuously monitored through the conductivity sensor arranged on the ammonia preparation solution tank, the ammonia water concentration is arbitrarily set according to requirements, and the ammonia water concentration prepared each time is basically stable. The device not only solves the problems of the reliability of ammonia supply source during ammonia preparation and the fluctuation of ammonia water concentration during ammonia preparation, but also can realize full-automatic operation and unattended operation of the system, save the operations of manual medicine preparation, carrying and the like, reduce the workload of operators, avoid the pungent ammonia smell during medicine addition, greatly improve the working environment and be beneficial to the occupational health of the operators.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present utility model, and are not particularly limited. In the drawings:
FIG. 1 is a schematic diagram of an intelligent multi-source ammonia distribution device according to the present utility model.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, shall fall within the scope of the utility model.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The following describes a specific embodiment of the present utility model with reference to fig. 1.
As shown in fig. 1, the intelligent multi-source ammonia preparing device of the utility model comprises:
an ammonia solution tank 19, a desalted water stainless steel ball valve 1, a desalted water Y-shaped filter 2, a stainless steel ball valve 3 before a desalted water electric switch valve, a desalted water electric switch valve 4, a stainless steel ball valve 5 after the desalted water electric switch valve, a desalted water check valve 7, a desalted water to first ammonia solution tank stainless steel ball valve 8, an ammonia gas stainless steel ball valve 9, an ammonia gas pressure gauge stop valve 10, an ammonia gas pressure gauge 11, an ammonia gas Y-shaped filter 12, a stainless steel ball valve 13 before an ammonia supply electric switch valve, an ammonia supply electric switch valve 14, a stainless steel ball valve 15 after the ammonia supply electric switch valve, an ammonia supply check valve 17 and an ammonia supply to second ammonia solution tank stainless steel ball valve 18 which are sequentially arranged on a pin-removed ammonia gas incoming pipeline communicated with the ammonia solution tank 19;
the concentrated ammonia water storage tank 22, the concentrated ammonia water storage tank 22 is connected with the ammonia water pipeline through the pipeline between the rear part of the ammonia gas Y-shaped filter 12 and the front part of the stainless steel ball valve 13 before the ammonia supply electric switch valve, and a concentrated ammonia water stainless steel ball valve 23, a concentrated ammonia water Y-shaped filter 24, a concentrated ammonia water booster pump 25, a concentrated ammonia water booster pump outlet pressure gauge stop valve 27, a concentrated ammonia water booster pump outlet pressure gauge 28, a concentrated ammonia water booster pump outlet check valve 29 and a concentrated ammonia water booster pump outlet stainless steel ball valve 30 are sequentially arranged on the ammonia water pipeline.
And a PLC controller 32, wherein the PLC controller 32 is connected with the demineralized water electric switch valve 4, the ammonia supply electric switch valve 14, the liquid level meter 20, the ammonia water conductivity sensor 21 and the concentrated ammonia water booster pump 25. The PLC controller 32 is connected to the touch display screen 31.
The ammonia pressure gauge 11 is used for monitoring the pressure of the de-pinned ammonia gas, the de-salted water Y-shaped filter 2 and the ammonia Y-shaped filter 12 are used for preventing the de-salted water from coming and the de-nitrified ammonia gas from other impurities from entering the ammonia solution preparing tank 19, the de-salted water check valve 7 and the ammonia supply check valve 17 are used for preventing the ammonia solution in the ammonia solution preparing tank 19 from recharging into a pipeline, and the liquid level gauge 20 and the ammonia conductivity sensor 21 are arranged in the ammonia solution preparing tank 19; the concentrated ammonia Y-filter 24 is used for preventing other impurities in the concentrated ammonia storage tank 22 from entering the ammonia solution preparing tank 19, the concentrated ammonia booster pump outlet pressure gauge 28 is used for monitoring the concentrated ammonia booster pump outlet pressure, and the concentrated ammonia booster pump outlet check valve 29 is used for preventing the denitrated ammonia incoming gas from entering the concentrated ammonia storage tank 22.
The utility model also comprises a stainless steel ball valve 3 connected in parallel with the front of the demineralized water electric switch valve, a demineralized water electric switch valve 4 and a demineralized water electric switch valve bypass valve 6 arranged at two ends of the stainless steel ball valve 5 behind the demineralized water electric switch valve.
The preferred embodiment of the utility model further comprises an ammonia supply electric switch valve bypass valve 16 connected in parallel with the front stainless steel ball valve 13, the ammonia supply electric switch valve 14 and the rear stainless steel ball valve 15 of the ammonia supply electric switch valve, wherein the demineralized water electric switch valve bypass valve 6 and the ammonia supply electric switch valve bypass valve 16 are used for manually performing ammonia preparation of the ammonia preparation solution tank when the demineralized water electric switch valve 4 and the ammonia supply electric switch valve 14 fail.
As a preferred embodiment of the present utility model, the apparatus further comprises a strong ammonia water booster pump bypass valve 26 connected in parallel to both ends of the strong ammonia water booster pump 25, wherein the strong ammonia water booster pump bypass valve 26 is used for supplying ammonia through a bypass when the strong ammonia water booster pump 25 fails, so as to ensure the continuity of ammonia supply.
Referring to fig. 1, the application method of the intelligent multi-source ammonia distribution device comprises two modes of an ammonia supply mode of a concentrated ammonia water storage tank and a denitration ammonia gas ammonia supply mode.
In the ammonia supply mode of denitration ammonia, a stainless steel ball valve 1 for desalted water, a stainless steel ball valve 3 before an electric switch valve for desalted water, a stainless steel ball valve 5 after the electric switch valve for desalted water, a stainless steel ball valve 8 for a first ammonia solution tank for desalted water, an ammonia stainless steel ball valve 9, an ammonia pressure gauge stop valve 10, a stainless steel ball valve 13 before an electric switch valve for ammonia supply, a stainless steel ball valve 15 after the electric switch valve for ammonia supply, a stainless steel ball valve 18 for ammonia supply to a second ammonia solution tank, and a bypass valve 6 for the electric switch valve for desalted water, a bypass valve 16 for ammonia supply, a stainless steel ball valve for strong ammonia 23, a bypass valve for a strong ammonia water booster pump 26, an outlet pressure gauge stop valve 27 for a strong ammonia booster pump, and a stainless steel ball valve 30 for a strong ammonia booster pump outlet.
Clicking a denitration ammonia gas ammonia supply mode button on a touch display screen 31 to enter a denitration ammonia gas ammonia supply interface, setting an upper limit value and a lower limit value of conductivity required by an ammonia solution preparation tank 19 and a liquid level upper limit value, wherein a PLC (programmable logic controller) 32 is used for acquiring the conductivity of an ammonia water conductivity sensor 21 of the ammonia solution preparation tank 19 and a liquid level signal of a liquid level meter 20, when the conductivity signal acquired by the ammonia water conductivity sensor 21 is lower than the lower limit value of conductivity, the PLC 32 is used for opening an ammonia supply electric switch valve 14, and when the conductivity signal acquired by the ammonia water conductivity sensor 21 is higher than the upper limit value of conductivity, the PLC 32 is used for closing the ammonia supply electric switch valve 14; when the liquid level signal collected by the liquid level meter 20 is lower than the liquid level lower limit value, the PLC 32 opens the demineralized water electric switch valve 4, and when the liquid level signal collected by the liquid level meter 20 is higher than the liquid level upper limit value, the PLC 32 closes the demineralized water electric switch valve 4.
In the ammonia supply mode of the concentrated ammonia water storage tank, a desalted water stainless steel ball valve 1, a stainless steel ball valve 3 before a desalted water electric switch valve, a stainless steel ball valve 5 after the desalted water electric switch valve, a stainless steel ball valve 8 before ammonia supply of the first ammonia solution tank, a stainless steel ball valve 13 before ammonia supply of the second ammonia solution tank, a stainless steel ball valve 15 after ammonia supply of the second ammonia solution tank, a concentrated ammonia water stainless steel ball valve 23, a concentrated ammonia water booster pump outlet pressure gauge stop valve 27, a concentrated ammonia water booster pump outlet stainless steel ball valve 30 are opened, and a desalted water electric switch valve bypass valve 6, an ammonia gas stainless steel ball valve 9, an ammonia gas pressure gauge stop valve 10, an ammonia supply electric switch valve bypass valve 16 and a concentrated ammonia water booster pump bypass valve 26 are closed.
Clicking an ammonia supply mode button of the concentrated ammonia water storage tank on the touch display screen 31 to enter an ammonia supply interface of the concentrated ammonia water storage tank, setting an upper limit value and a lower limit value of conductivity required by the ammonia solution preparation tank 19 and a liquid level upper limit value, and enabling the PLC 32 to open the ammonia supply electric switch valve 14 and simultaneously start the concentrated ammonia water booster pump 25 when the conductivity signal acquired by the ammonia water conductivity sensor 21 is lower than the lower limit value of conductivity by acquiring the conductivity of the ammonia water conductivity sensor 21 of the ammonia solution preparation tank 19 and the liquid level signal of the liquid level meter 20, and enabling the PLC 32 to close the ammonia supply electric switch valve 14 and simultaneously stop the concentrated ammonia water booster pump 25 when the conductivity signal acquired by the ammonia water conductivity sensor 21 is higher than the upper limit value of conductivity; when the liquid level signal collected by the liquid level meter 20 is lower than the liquid level lower limit value, the PLC 32 opens the demineralized water electric switch valve 4, and when the liquid level signal collected by the liquid level meter 20 is higher than the liquid level upper limit value, the PLC 32 closes the demineralized water electric switch valve 4.
The two ammonia supply modes are mutually switched, so that the sustainability and the reliability of the ammonia source of the ammonia preparation solution tank are ensured.
The PLC controller 32 of the present utility model does not involve algorithm and control program modifications, and is primarily used to acquire data for remote control. Therefore, the utility model is only improved in hardware, no improvement in computer program exists, the control process can be controlled remotely by manpower, and the control method is not particularly limited.
Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are incorporated herein by reference for the purpose of completeness. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to forego such subject matter, nor should the applicant be deemed to have such subject matter not considered to be part of the disclosed subject matter.
The foregoing is a further elaboration of the present utility model, and it is not intended that the utility model be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the utility model, all shall be deemed to fall within the scope of the utility model as defined by the claims which are filed herewith.
Claims (8)
1. An intelligent multi-source ammonia distribution device, comprising:
an ammonia solution tank (19), a desalted water stainless steel ball valve (1), a desalted water Y-shaped filter (2), a stainless steel ball valve (3) before a desalted water electric switch valve, a desalted water electric switch valve (4), a stainless steel ball valve (5) after the desalted water electric switch valve, a desalted water check valve (7), a desalted water to first ammonia solution tank stainless steel ball valve (8), an ammonia stainless steel ball valve (9), an ammonia pressure gauge (11), an ammonia Y-shaped filter (12), a stainless steel ball valve (13) before an ammonia supply electric switch valve (14), a stainless steel ball valve (15) after the ammonia supply electric switch valve, an ammonia supply check valve (17) and an ammonia supply to second ammonia solution tank stainless steel ball valve (18) are sequentially arranged on a desalted water incoming pipeline communicated with the ammonia solution tank (19); the ammonia solution preparing tank (19) is provided with a liquid level meter (20) and an ammonia water conductivity sensor (21);
the concentrated ammonia water storage tank (22), the concentrated ammonia water storage tank (22) is connected with a pipeline between the rear part of the ammonia gas Y-shaped filter (12) and the front part of the stainless steel ball valve (13) in front of the ammonia supply electric switch valve through an ammonia water pipeline, and a concentrated ammonia water stainless steel ball valve (23), a concentrated ammonia water Y-shaped filter (24), a concentrated ammonia water booster pump (25), a concentrated ammonia water booster pump outlet pressure gauge (28), a concentrated ammonia water booster pump outlet check valve (29) and a concentrated ammonia water booster pump outlet stainless steel ball valve (30) are sequentially arranged on the ammonia water pipeline;
and the PLC (32), the PLC (32) is electrically connected with the demineralized water electric switch valve (4), the ammonia supply electric switch valve (14), the liquid level meter (20), the ammonia water conductivity sensor (21) and the concentrated ammonia water booster pump (25).
2. The intelligent multi-source ammonia distribution device according to claim 1, wherein the PLC (32) is connected with a touch display screen (31).
3. An intelligent multi-source ammonia distribution device according to claim 1, wherein the ammonia pressure gauge (11) is connected with an out-of-stock ammonia gas pipeline through an ammonia pressure gauge stop valve (10).
4. The intelligent multi-source ammonia distribution device according to claim 1, wherein the outlet pressure gauge (28) of the concentrated ammonia booster pump is connected with an ammonia pipeline through a stop valve (27) of the outlet pressure gauge of the concentrated ammonia booster pump.
5. The intelligent multi-source ammonia distribution device according to claim 1, wherein: the device also comprises a stainless steel ball valve (3) connected in parallel with the front of the demineralized water electric switch valve, a demineralized water electric switch valve (4) and a demineralized water electric switch valve bypass valve (6) at two ends of a stainless steel ball valve (5) behind the demineralized water electric switch valve.
6. The intelligent multi-source ammonia distribution device according to claim 1, wherein: the device also comprises a stainless steel ball valve (13) connected in parallel before the ammonia supply electric switch valve, an ammonia supply electric switch valve (14) and an ammonia supply electric switch valve bypass valve (16) at two ends of a stainless steel ball valve (15) behind the ammonia supply electric switch valve.
7. The intelligent multi-source ammonia distribution device according to claim 1, wherein: the device also comprises a bypass valve (26) of the concentrated ammonia booster pump connected in parallel at two ends of the concentrated ammonia booster pump (25).
8. The intelligent multi-source ammonia distribution device according to claim 1, wherein: the ammonia water conductivity sensor (21) is arranged at the bottom of the ammonia preparation solution tank (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223611389.2U CN219356136U (en) | 2022-12-30 | 2022-12-30 | Intelligent multi-source ammonia distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223611389.2U CN219356136U (en) | 2022-12-30 | 2022-12-30 | Intelligent multi-source ammonia distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219356136U true CN219356136U (en) | 2023-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223611389.2U Active CN219356136U (en) | 2022-12-30 | 2022-12-30 | Intelligent multi-source ammonia distribution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219356136U (en) |
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2022
- 2022-12-30 CN CN202223611389.2U patent/CN219356136U/en active Active
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