CN111847560A - Device for automatically adjusting oxygen-removing liquid medicine - Google Patents
Device for automatically adjusting oxygen-removing liquid medicine Download PDFInfo
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- CN111847560A CN111847560A CN202010688057.0A CN202010688057A CN111847560A CN 111847560 A CN111847560 A CN 111847560A CN 202010688057 A CN202010688057 A CN 202010688057A CN 111847560 A CN111847560 A CN 111847560A
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- controller
- transmission device
- liquid medicine
- dissolved oxygen
- oxygen content
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention relates to a device for automatically adjusting and adding deoxygenation liquid medicine, which comprises a dissolved oxygen sensor, a controller, a transmission device and a power supply conversion device, wherein the controller is connected with the dissolved oxygen sensor; the dissolved oxygen sensor is arranged in the deaerating tank and is in electric signal connection with the controller through a lead; the power conversion device is respectively connected with the controller and the transmission device through wires; the controller is in electric signal connection with the transmission device; the transmission device is matched with the dosing pump. The instant dissolved oxygen condition detected by the dissolved oxygen sensor is compared with the standard dissolved oxygen, and then the instant dissolved oxygen condition is increased or decreased according to the actual condition, so that the oxygen content in the water for the boiler is always within the normal range, and the labor intensity of operators is reduced.
Description
Technical Field
The invention belongs to the technical field of boiler water treatment, and particularly relates to a device for automatically adjusting and adding oxygen removal liquid medicine.
Background
The boiler water treatment scheme in the prior art comprises thermal deoxidization or drug deoxidization, wherein the drug deoxidization is widely regarded with low energy consumption, and the specific technology is to add deoxidization liquid medicine into boiler water. Most of the methods for removing oxygen by adopting medicines are that a manual detector is used for detecting the oxygen content in water for the boiler, and the dosage is controlled by manually adjusting the pulse frequency of a medicine adding pump according to the data of the oxygen content in the water, so that the oxygen content in the water for the boiler reaches the specified standard.
The method for detecting the oxygen content of boiler feed water in boiler water treatment of the existing enterprises mainly adopts the steps that the oxygen content is manually detected by a detector every time, and the dosage is controlled by manually adjusting a dosing pump according to the height data of the oxygen content in water. However, because the temperature of the deoxygenated water is changed continuously, the flow of the boiler water is also changed continuously, and the accidental insufficient or excessive dosage can be caused by a method of timing detection and manual dosage adjustment, so that the water treatment process is influenced, the boiler is easy to corrode by oxygen, the safe operation of the boiler cannot be guaranteed, and meanwhile, certain economic loss can be caused to enterprises.
Disclosure of Invention
The invention aims to provide a device for automatically adjusting and adding an oxygen-removing liquid medicine, which is used for solving the problem that accidental medicine dosage is insufficient or excessive due to manual adjustment when boiler water is manually detected at regular time.
The invention is realized by the following technical scheme:
a device for automatically adjusting oxygen-adding liquid medicine comprises a dissolved oxygen sensor, a controller, a transmission device and a power supply conversion device;
the dissolved oxygen sensor is arranged in the deaerating tank and is in electric signal connection with the controller through a lead;
the power supply conversion device is respectively connected with the controller and the transmission device through wires;
The controller is in electric signal connection with the transmission device;
the transmission device is matched with the dosing pump.
Preferably, the device for adding the deoxygenated liquid medicine further comprises a medicine adding box, a medicine adding pump, a deoxygenating tank, an output pipeline, an input pipeline and a control valve;
one end of the input pipeline is connected with an outlet of the dosing tank, and the other end of the input pipeline is connected with an inlet of the dosing pump; the outlet of the dosing pump is connected with the inlet of the control valve, one end of the output pipeline is connected with the outlet of the control valve, and the other end of the output pipeline is connected with the inlet of the deaerating tank;
the transmission device is connected with the adjusting device of the dosing pump.
Preferably, the transmission is mounted on a manual adjustment knob.
Preferably, the number of the dosing pumps is one or more, and the number of the transmission devices is the same as that of the dosing pumps and corresponds to that of the dosing pumps one by one.
Preferably, a plurality of dosing pumps are arranged in parallel.
Preferably, the dissolved oxygen sensor is arranged at the bottom of the deoxygenation tank.
Preferably, the method for controlling the device for automatically adjusting and adding oxygen-removing liquid medicine comprises the following steps:
s1, determining the range of the standard oxygen content in the boiler water;
s2, the dissolved oxygen sensor transmits the detected instant oxygen content data of the boiler water in the deaerating tank to the controller, and the controller respectively controls the instant oxygen content data and the standard oxygen content data according to the difference value of the instant oxygen content and the standard oxygen content data;
If the difference value is a positive value, the controller sends a control signal for increasing the deoxygenation liquid medicine to the transmission device, and the transmission device acts to increase the medicine adding amount of the medicine adding pump;
if the difference value is 0, the controller does not send a control signal to the transmission device;
if the difference value is a negative value, the controller sends a control signal for reducing the deoxygenation liquid medicine to the transmission device, and the transmission device acts to reduce the medicine adding amount of the medicine adding pump.
Preferably, the standard oxygen content in the boiler water is in the range of 10-30 mug/L.
The invention has the beneficial effects that:
the instant dissolved oxygen condition detected by the dissolved oxygen sensor is compared with the standard dissolved oxygen, and then the instant dissolved oxygen condition is increased or decreased according to the actual condition, so that the oxygen content in the water for the boiler is always within the normal range, and the labor intensity of operators is reduced.
Drawings
FIG. 1 is a schematic view of the device for automatically adjusting and adding oxygen-removing liquid medicine according to the present invention.
Description of the reference numerals
The automatic dosing device comprises a dosing pump 1, a transmission device 2, a control valve 3, an output pipeline 4, a deaerating tank 5, a dissolved oxygen sensor 6, a signal line 7, a controller 8, a control line 9, an input pipeline 10 and a dosing tank 11.
Detailed Description
The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.
As shown in fig. 1, the present application provides a device for automatically adjusting and adding an oxygen-removing liquid medicine, which includes a dissolved oxygen sensor 6 disposed at the bottom of an oxygen-removing tank 5 and connected to a controller 8 through a signal line 7.
In the present application, the controller 8 is a PLC controller, the transmission device 2 and a power conversion device; the power conversion device is respectively connected with the controller and the transmission device through wires; the controller 8 is in electric signal connection with the transmission device 2 through a control line 9; the transmission device 2 is matched with the dosing pump 1.
As shown in fig. 1, the device for adding deoxygenated liquid medicine further comprises a dosing tank 11, a dosing pump 1, a deoxygenating tank 5, an output pipeline 4, an input pipeline 10 and a control valve 3; the medicine adding box is internally provided with three medicine adding pumps which are connected in parallel, and also comprises three transmission devices and three control valves which are in one-to-one correspondence with the three medicine adding pumps.
One end of the input pipeline is connected with an outlet of the dosing tank, and the other end of the input pipeline is connected with an inlet of the dosing pump; the outlet of the dosing pump is connected with the inlet of the control valve, one end of the output pipeline is connected with the outlet of the control valve, and the other end of the output pipeline is connected with the inlet of the deaerating tank; the transmission device is connected with the adjusting device of the dosing pump. In the technical scheme to be applied, the transmission device at least comprises an electric motor, an output shaft of the electric motor is connected with a manual adjusting button of a flow adjusting valve or a manual adjusting button of a pulse frequency adjusting valve of the dosing pump through a connecting device, the action of the electric motor is controlled by a motor controller, and the motor controller is in electric signal connection with the controller.
Preferably, the method for controlling the device for automatically adjusting and adding oxygen-removing liquid medicine comprises the following steps:
s1, determining the range of the standard oxygen content in the boiler water to be 10-30 mu g/L.
S2, the dissolved oxygen sensor transmits the detected instant oxygen content data of the boiler water in the deaerating tank to the controller, and the controller respectively controls according to the difference value between the instant oxygen content and the standard oxygen content;
if the difference value is a positive value, the controller sends a control signal for increasing the deoxygenation liquid medicine to the transmission device, the transmission device acts, and the medicine adding amount of the medicine adding pump is increased;
If the difference is 0, the controller does not send a control signal to the transmission device;
if the difference value is a negative value, the controller sends a control signal for reducing the deoxygenation liquid medicine to the transmission device, and the transmission device acts to reduce the medicine adding amount of the medicine adding pump.
The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of by the inventive arts should be included in the scope of the present invention, and therefore, the scope of the present invention should be subject to the scope defined by the claims.
Claims (8)
1. A device for automatically adjusting and adding oxygen liquid medicine is characterized by comprising a dissolved oxygen sensor, a controller, a transmission device and a power supply conversion device;
the dissolved oxygen sensor is arranged in the deaerating tank and is in electric signal connection with the controller through a lead;
the power supply conversion device is respectively connected with the controller and the transmission device through wires;
the controller is in electric signal connection with the transmission device;
the transmission device is matched with the dosing pump.
2. The device for automatically adjusting the addition of the deoxygenated liquid medicine according to claim 1, wherein the device for adding the deoxygenated liquid medicine further comprises a dosing tank, a dosing pump, a deoxygenating tank, an output pipeline, an input pipeline and a control valve;
One end of the input pipeline is connected with an outlet of the dosing tank, and the other end of the input pipeline is connected with an inlet of the dosing pump; the outlet of the dosing pump is connected with the inlet of the control valve, one end of the output pipeline is connected with the outlet of the control valve, and the other end of the output pipeline is connected with the inlet of the deaerating tank;
the transmission device is connected with the adjusting device of the dosing pump.
3. The device for automatically regulating the addition of an oxygen-scavenging medical fluid according to claim 1, wherein the transmission is mounted on a manual adjustment knob of a dosing pump.
4. The device for automatically adjusting and adding oxygen-removing liquid medicine according to claim 1, wherein the number of the medicine adding pumps is one or more than one, and the number of the transmission devices is the same as that of the medicine adding pumps and corresponds to that of the medicine adding pumps one by one.
5. The apparatus of claim 4 wherein a plurality of dosing pumps are arranged in parallel.
6. The device for automatically adjusting and adding deoxygenated liquid medicine according to claim 1, wherein the dissolved oxygen sensor is arranged at the bottom of the deoxygenating tank.
7. The device for automatically adjusting and adding oxygen-removing liquid medicine according to any one of claims 1 to 6, characterized in that the control method comprises the following steps:
S1, determining the range of the standard oxygen content in the boiler water;
s2, the dissolved oxygen sensor transmits the detected instant oxygen content data of the boiler water in the deaerating tank to the controller, and the controller respectively controls the instant oxygen content data and the standard oxygen content data according to the difference value of the instant oxygen content and the standard oxygen content data;
if the difference value is a positive value, the controller sends a control signal for increasing the deoxygenation liquid medicine to the transmission device, and the transmission device acts to increase the medicine adding amount of the medicine adding pump;
if the difference value is 0, the controller does not send a control signal to the transmission device;
if the difference value is a negative value, the controller sends a control signal for reducing the deoxygenation liquid medicine to the transmission device, and the transmission device acts to reduce the medicine adding amount of the medicine adding pump.
8. The apparatus of claim 7 wherein the standard oxygen content of the boiler water is in the range of 10-30 μ g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010688057.0A CN111847560A (en) | 2020-07-16 | 2020-07-16 | Device for automatically adjusting oxygen-removing liquid medicine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010688057.0A CN111847560A (en) | 2020-07-16 | 2020-07-16 | Device for automatically adjusting oxygen-removing liquid medicine |
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| Publication Number | Publication Date |
|---|---|
| CN111847560A true CN111847560A (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010688057.0A Pending CN111847560A (en) | 2020-07-16 | 2020-07-16 | Device for automatically adjusting oxygen-removing liquid medicine |
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| Country | Link |
|---|---|
| CN (1) | CN111847560A (en) |
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2020
- 2020-07-16 CN CN202010688057.0A patent/CN111847560A/en active Pending
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