CN212740797U - Device for maintaining oxygen content of deaerated water stable - Google Patents
Device for maintaining oxygen content of deaerated water stable Download PDFInfo
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- CN212740797U CN212740797U CN202021411834.9U CN202021411834U CN212740797U CN 212740797 U CN212740797 U CN 212740797U CN 202021411834 U CN202021411834 U CN 202021411834U CN 212740797 U CN212740797 U CN 212740797U
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Abstract
The utility model relates to a device for maintaining the oxygen content of deoxygenated water to be stable, which comprises a dosing tank, a dosing pump, a deoxygenating tank, a controller, a transmission device and a control valve; the input pipeline is respectively connected with a dosing tank and a dosing pump, the dosing pump is connected with a deaerating tank through an output pipeline, and the transmission device is connected with a flow regulating switch of the dosing pump; the water inlet of the deaerating tank is connected with a water source for the boiler through an external network pipeline, and the first flow meter, the first dissolved oxygen sensor, the first liquid level meter, the second dissolved oxygen sensor, the second flow meter and the first pressure sensor are all in electric signal connection with the controller. This technical scheme passes through the water yield and the dissolved oxygen volume of outer net pipeline, obtains the addition of deoxidization liquid medicine as the basis to combine the dissolved oxygen volume in the deoxidization jar, with the dissolved oxygen volume's of outer net pipeline difference, obtain the total amount of deoxidization liquid medicine, and according to the export flow of charge pump, with the accuracy of confirming the actual dose that adds, thereby guarantee that the oxygen content of deoxidization water is in within the normal band all the time.
Description
Technical Field
The utility model belongs to the technical field of boiler water treatment, especially indicate a device that the oxygen content that maintains the oxygen-removed water is stable.
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.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a maintain stable device of oxygen content of deoxidization water to solve present artifical regular time detection boiler water and carry out manual regulation and lead to accidental dose not enough or surplus, lead to the unstable problem of oxygen content in the deoxidization water.
The utility model discloses a realize through following technical scheme:
a device for maintaining the oxygen content of deoxygenated water to be stable comprises a dosing tank, a dosing pump, a deoxygenating tank, a controller, a transmission device and a control valve;
the medicine outlet of the dosing box is connected with one end of an input pipeline, and the other end of the input pipeline is connected with the inlet of a dosing pump;
the outlet of the dosing pump is connected with one end of an output pipeline, and the other end of the output pipeline is connected with a dosing port of the deaerating tank;
a control valve is arranged on the output pipeline; the transmission device is connected with a flow regulating switch of the dosing pump;
a water inlet of the deaerating tank is connected with a water source for the boiler through an external network pipeline, and a first flow meter and a first dissolved oxygen sensor are arranged on the external network pipeline;
a first liquid level meter and a second dissolved oxygen sensor are arranged on the deaerating tank; a second flowmeter and a first pressure sensor are arranged at the outlet of the dosing pump;
the first flowmeter, the second flowmeter, the first dissolved oxygen sensor, the second dissolved oxygen sensor, the first liquid level meter and the first pressure sensor are all in electric signal connection with the controller.
Preferably, the device further comprises a power supply conversion device which is respectively connected with the controller and the transmission device through wires.
Preferably, the chemical adding opening of the deaerating tank is close to the water inlet, and the second dissolved oxygen sensor is arranged near the water outlet of the deaerating tank.
Preferably, the controller is a PLC controller.
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 bottom of the deaerating tank is provided with a third dissolved oxygen sensor.
Preferably, a differential pressure sensor is arranged on two sides of the filter screen at the inlet of the dosing pump.
Preferably, a second level meter is provided in the dosing tank.
The utility model has the advantages that:
this technical scheme passes through the water yield and the dissolved oxygen volume of outer net pipeline, obtains the addition of deoxidization liquid medicine as the basis to combine the dissolved oxygen volume in the deoxidization jar, with the dissolved oxygen volume's of outer net pipeline difference, obtain the total amount of deoxidization liquid medicine, and according to the export flow of charge pump, with the accuracy of confirming the actual dose that adds, thereby guarantee that the oxygen content of deoxidization water is in within normal range all the time, and reduced operating personnel's intensity of labour.
Drawings
Fig. 1 is a schematic diagram of the device for maintaining the oxygen content of the deaerated water stable according to the present invention.
Description of the reference numerals
The automatic control system comprises a dosing tank 1, a dosing pump 2, a transmission device 3, a deaerating tank 4, a control valve 5, a water source for a boiler 6, a controller 7, a switch valve 8, a first flowmeter 9, a first dissolved oxygen sensor 10, a third dissolved oxygen sensor 11, a second dissolved oxygen sensor 12, a first liquid level meter 13, a second flowmeter 14, a first pressure sensor 15, a filter screen 16, a differential pressure sensor 17 and a second liquid level meter 18.
Detailed Description
The technical solutions of the present invention are described in detail below by way of examples, which are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but should not be construed as limiting the technical solutions of the present invention.
As shown in fig. 1, the present application provides a device for maintaining oxygen content of deoxygenated water stable, comprising a dosing tank 1, wherein the dosing tank 1 is a rectangular tank body, a medicine outlet is arranged below the dosing tank, and a second liquid level meter 18 is arranged in the dosing tank and used for monitoring the level of the deoxygenated medicine in the dosing tank. Whether or not the stirring device and the like are further included in the dosing tank is not within the technical scope of the present application, and is not mentioned.
The three dosing pumps 2 are connected with the dosing tank 1 in a parallel connection mode through input pipelines, a filter screen 16 is arranged near the inlet of the front end of each dosing pump 2, and pressure difference sensors 17 are arranged on two sides of the filter screen 16 and used for monitoring whether the filter screen at the inlet of the dosing pump is blocked or not so as to avoid failure in adjustment of the dosing pump. The connection structures of the three dosing pumps are the same, and are not described one by one.
Near the exit of dosing pump is provided with second flowmeter 14 and first pressure sensor 15 for monitor the liquid medicine flow and the pressure value that add in dosing pump exit, the export of dosing pump passes through the entry linkage of pipeline and control valve 5, and the export of control valve passes through the output pipeline and is connected with the medicine mouth that adds of oxygen-eliminating jar 4.
In this application, deoxidization jar 4 is rectangular structure, and in other embodiments of this application, deoxidization jar also can be spherical tank or cylindrical jar, and concrete deoxidization jar shape does not influence this application technical scheme's realization, does not carry out clear and definite requirement here.
Be provided with the water inlet on the oxygen-eliminating jar, this water inlet passes through the outer net pipeline and is connected with boiler water supply 6, is provided with ooff valve 8 on the outer net pipeline, and the boiler water supply here can be for the pure water, the deionized water or other water through the processing of processing, but all through earlier stage to get rid of the ion that contains in the aquatic, in order to reduce the corruption to the boiler. In the technical scheme of this application, the water inlet on the oxygen-eliminating tank is nearer with adding the medicine mouth distance to improve boiler water and add the homogeneity of liquid medicine. For example, a stirring device can be arranged on the deaerating tank to improve the sufficient mixing of the liquid medicine and the boiler water and improve the deaerating effect.
A first flowmeter 9 and a first dissolved oxygen sensor 10 are arranged at a position, close to a water inlet of the deaerating tank, of the external network pipeline, the first flowmeter is used for determining the water inflow of boiler water, and the required basic dosage of the liquid medicine is determined by combining dissolved oxygen contained in the inflow water detected by the first dissolved oxygen sensor.
Be provided with first level gauge 13 and second dissolved oxygen sensor 12 in the deoxidization jar, first level gauge is used for monitoring the liquid level in the deoxidization jar, and the second dissolved oxygen sensor sets up near the delivery port for monitor the oxygen content in the deoxidization water, be used for confirming with the difference of first dissolved oxygen sensor, and be used for the correction to adding the liquid medicine volume.
And a third dissolved oxygen sensor 11 is also arranged at the bottom of the deaerating tank and used for detecting the oxygen content of the bottom of the deaerating tank.
The transmission device 3 comprises at least 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. In the technical scheme of this application, the manual knob of the pulse frequency control valve of every dosing pump all is connected with a transmission, and in this application, transmission and power conversion device are connected, and power conversion device is connected with the power, provides the power form of setting for transmission.
In the present application, the power conversion device may also be connected to the controller 7 by a wire to provide the controller with the required power, or the controller may use a separate power source. The controller 7 of this application is the PLC controller, can carry out corresponding processing to the signal of inputing.
In this application, first level gauge, second level gauge, first dissolved oxygen sensor, second dissolved oxygen sensor, first pressure sensor, differential pressure sensor, first flowmeter, second flowmeter etc. all are connected with controller electrical signal line, and the controller still is connected with transmission and control valve respectively through control signal line.
The above embodiments are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto, and any changes or substitutions that are not thought of through creative work should be covered within the scope of protection of the present invention, and therefore, the scope of protection of the present invention should be subject to the scope of protection defined by the claims.
Claims (9)
1. A device for maintaining the oxygen content of deoxygenated water to be stable is characterized by comprising a dosing tank, a dosing pump, a deoxygenating tank, a controller, a transmission device and a control valve;
the medicine outlet of the dosing box is connected with one end of an input pipeline, and the other end of the input pipeline is connected with the inlet of a dosing pump;
the outlet of the dosing pump is connected with one end of an output pipeline, and the other end of the output pipeline is connected with a dosing port of the deaerating tank;
a control valve is arranged on the output pipeline; the transmission device is connected with a flow regulating switch of the dosing pump;
a water inlet of the deaerating tank is connected with a water source for the boiler through an external network pipeline, and a first flow meter and a first dissolved oxygen sensor are arranged on the external network pipeline;
a first liquid level meter and a second dissolved oxygen sensor are arranged on the deaerating tank; a second flowmeter and a first pressure sensor are arranged at the outlet of the dosing pump;
the first flowmeter, the second flowmeter, the first dissolved oxygen sensor, the second dissolved oxygen sensor, the first liquid level meter and the first pressure sensor are all in electric signal connection with the controller.
2. The device for maintaining the oxygen content of the deoxygenated water stable as claimed in claim 1, further comprising a power conversion device connected to the controller and the transmission device via wires, respectively.
3. The device for maintaining the oxygen content of deoxygenated water stable as claimed in claim 1, wherein the dosing port of the deoxygenation tank is close to the water inlet, and the second dissolved oxygen sensor is disposed near the water outlet of the deoxygenation tank.
4. The device for maintaining the oxygen content of deoxygenated water stable according to claim 1, wherein said controller is a PLC controller.
5. The device for maintaining the oxygen content of deoxygenated water stable according to claim 1, wherein the number of the dosing pumps is one or more than one, and the number of the transmission devices is the same as the number of the dosing pumps and corresponds to the number of the dosing pumps.
6. The device for maintaining the oxygen content of the deoxygenated water stable of claim 5, wherein a plurality of dosing pumps are arranged in parallel.
7. The device for maintaining the oxygen content of the deoxygenated water stable according to claim 1, wherein a third dissolved oxygen sensor is disposed at the bottom of the deoxygenated tank.
8. The device for maintaining the oxygen content of deoxygenated water stable according to claim 1, wherein a differential pressure sensor is disposed at two sides of the filter screen at the inlet of the dosing pump.
9. The device for maintaining the oxygen content of the deoxygenated water stable of claim 1, wherein a second level meter is disposed within the dosing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021411834.9U CN212740797U (en) | 2020-07-16 | 2020-07-16 | Device for maintaining oxygen content of deaerated water stable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021411834.9U CN212740797U (en) | 2020-07-16 | 2020-07-16 | Device for maintaining oxygen content of deaerated water stable |
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| CN212740797U true CN212740797U (en) | 2021-03-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111825147A (en) * | 2020-07-16 | 2020-10-27 | 河南中烟工业有限责任公司 | Device for maintaining oxygen content of deaerated water stable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111825147A (en) * | 2020-07-16 | 2020-10-27 | 河南中烟工业有限责任公司 | Device for maintaining oxygen content of deaerated water stable |
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