CN220186550U - Quantitative alkali liquor filling system for water bath - Google Patents
Quantitative alkali liquor filling system for water bath Download PDFInfo
- Publication number
- CN220186550U CN220186550U CN202320745680.4U CN202320745680U CN220186550U CN 220186550 U CN220186550 U CN 220186550U CN 202320745680 U CN202320745680 U CN 202320745680U CN 220186550 U CN220186550 U CN 220186550U
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- CN
- China
- Prior art keywords
- alkali liquor
- water bath
- value
- metering pump
- filling
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 239000003513 alkali Substances 0.000 title claims abstract description 68
- 239000007788 liquid Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000002425 crystallisation Methods 0.000 abstract description 6
- 230000008025 crystallization Effects 0.000 abstract description 6
- 239000003949 liquefied natural gas Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
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- Control Of Non-Electrical Variables (AREA)
Abstract
The utility model relates to an alkali liquor filling device, in particular to a quantitative alkali liquor filling system of a water bath, which comprises an alkali liquor storage device, an alkali liquor filling pipeline, a metering pump, a PH value detector and a control device, wherein one end of the alkali liquor filling pipeline is connected with the alkali liquor storage device, the other end of the alkali liquor filling pipeline is connected with the water bath, the metering pump is arranged on the alkali liquor filling pipeline, the PH value detector is used for measuring the PH value of pool water in the water bath, the metering pump and the PH value detector are both connected with the control device, the PH value detector transmits the acquired real-time PH value of pool water in the water bath to the control device, and the control device controls the alkali liquor conveying quantity of the metering pump according to the real-time PH value. The utility model can stably and quantitatively inject alkali liquor, keep the pH value of the water bath stable, and avoid alkali liquor crystallization in the pipeline.
Description
Technical Field
The utility model relates to an alkali liquor filling device, in particular to a quantitative alkali liquor filling system of a water bath.
Background
Submerged combustion gasifiers are a necessary gasification facility in LNG (liquefied natural gas) receiving stations at cold climates, dedicated to heating cryogenic liquid LNG to gaseous natural gas. As the acid gas in the flue gas can be dissolved into the water in the water bath pool in the running process of the equipment, the pH value of the pool water is continuously reduced, and the service life of the heat exchange system is further influenced. In order to ensure that the pH value of the water in the water bath pool is stabilized at 6-9, a mode of filling alkali liquor into the pool water is generally adopted. In the existing alkali liquor filling device, alkali liquor flows into a water bath by the self weight of the liquid, and the alkali liquor filling amount is influenced by factors such as the liquid level in an alkali liquor tank, the crystallization blocking condition of the solution in a pipeline, viscosity change, pipeline arrangement and the like, so that the pH value of water in the water bath cannot be controlled stably. And after the pipeline is blocked by crystallization, the pipeline cannot be automatically dredged, so that the alkali liquor filling system is invalid.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a water bath Chi Jianye quantitative filling system which can stably and quantitatively fill alkali liquor, keep the pH value of a water bath stable and avoid alkali liquor crystallization in a pipeline.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model discloses a quantitative alkali liquor filling system of a water bath, which comprises an alkali liquor storage device, an alkali liquor filling pipeline, a metering pump, a PH value detector and a control device, wherein one end of the alkali liquor filling pipeline is connected with the alkali liquor storage device, the other end of the alkali liquor filling pipeline is connected with the water bath, the metering pump is arranged on the alkali liquor filling pipeline, the PH value detector is used for measuring the PH value of pool water in the water bath, the metering pump and the PH value detector are both connected with the control device, the PH value detector transmits the acquired real-time PH value of pool water in the water bath to the control device, and the control device controls the alkali liquor conveying quantity of the metering pump according to the real-time PH value.
Further, the metering pump is a volumetric metering pump.
Further, the alkali liquor storage device is provided with a liquid inlet pipe and a drain pipe, and the liquid inlet pipe and the drain pipe are respectively provided with a first switch valve and a second switch valve.
Further, the metering pump is connected in parallel to the alkali liquor filling pipeline, a third switching valve is arranged between the alkali liquor storage device and the metering pump on the alkali liquor filling pipeline, and a fourth switching valve is arranged between two ends of the metering pump on the alkali liquor filling pipeline.
Compared with the prior art, the water bath Chi Jianye quantitative filling system has at least the following beneficial effects:
the water bath Chi Jianye quantitative filling system comprises a metering pump, a PH value detector and a control device, wherein the PH value detector transmits the PH value of the collected water in the water bath to the control device, and the control device controls the alkali liquor conveying amount of the metering pump according to the PH value, so that alkali liquor can be stably and quantitatively filled into the water bath, the pH value of the water bath is stable, the condition of frequent filling caused by instability of single alkali liquor filling amount is avoided, the effect of accurate filling is achieved, meanwhile, the metering pump has larger pumping pressure and output pressure, the alkali liquor filling pipeline is flushed once in each filling operation process, the problem of alkali liquor crystallization blockage in the pipeline is solved, and the stability of the pH value control of the water bath and the low maintenance workload of the water bath can be ensured under the state of long-period running of the water bath.
The water bath Chi Jianye dosing system of the present utility model is further described below with reference to the drawings.
Drawings
FIG. 1 is a schematic diagram of the quantitative filling system for alkali liquor in a water bath.
Detailed Description
As shown in fig. 1, the water bath Chi Jianye quantitative filling system comprises an alkali liquor storage device 11, an alkali liquor filling pipeline 12, a metering pump 13, a PH value detector 14 and a control device 15, wherein one end of the alkali liquor filling pipeline 12 is connected with the alkali liquor storage device 11, the other end of the alkali liquor filling pipeline 12 is connected with a water bath 16, the metering pump 13 is arranged on the alkali liquor filling pipeline 12, the PH value detector 14 is used for measuring the PH value of water in the water bath 16, the metering pump 13 and the PH value detector 14 are both connected with the control device 15, the PH value detector 14 transmits the real-time PH value of the collected water in the water bath 16 to the control device 15, and the control device 15 controls the alkali liquor conveying quantity of the metering pump 13 according to the real-time PH value. The PH value of the water in the water bath 16, the mass of the water in the water bath 16 and the alkali liquor conveying amount in unit time of the metering pump 13 are preset in the control device 15, the PH value is generally set to be 6-9, when the PH value of the water conveyed by the PH value detector 14 is lower than a certain lower limit set value after the water bath 16 runs for a period of time, the control device 15 calculates the running time required by the metering pump 13 according to the alkali liquor conveying amount in unit time of the metering pump 13, the PH value of the water and the mass of the water in the water bath 16, then the control device 15 controls the metering pump 13 to start, the metering pump is continuously operated for a specified time, alkali liquor is quantitatively injected into the water bath 16 until the PH value of the water in the water bath 16 is stably recovered to a preset interval. The water bath Chi Jianye quantitative filling system comprises the metering pump 13, the PH value detector 14 and the control device 15, wherein the PH value detector 14 transmits the PH value of the collected water in the water bath 16 to the control device 15, and the control device 15 controls the alkali liquor conveying amount of the metering pump 13 according to the PH value, so that alkali liquor can be stably and quantitatively injected into the water bath 16, the pH value of the water bath 16 is stable, the condition of frequent filling caused by the instability of single alkali liquor filling amount is avoided, the accurate filling effect is achieved, meanwhile, the metering pump 13 has larger pumping pressure and output pressure, the alkali liquor filling pipeline is flushed once in each filling operation process, the problem of alkali liquor crystallization blockage in the pipeline is solved, and the stable control of the pH value of the water bath and the low maintenance workload can be ensured under the state of long-period running of the water bath.
Alternatively, the metering pump 13 is a volumetric metering pump, which works by means of a constant change in volume of the sealed working chambers, the output flow of which depends on the number of sealed working chambers and the size and frequency of the volume change, with which alkaline solution can be injected more accurately in volume.
Optionally, the lye storage device 11 is provided with a liquid inlet pipe 111 and a drain pipe 112, and the liquid inlet pipe 111 and the drain pipe 112 are respectively provided with a first switch valve 113 and a second switch valve 114, and specifically, the lye storage device 11 is a lye tank.
Optionally, the metering pump 13 is connected in parallel to the lye filling pipe 12, a third switch valve 121 is arranged on the lye filling pipe 12 between the lye storage device 11 and the metering pump 13, and a fourth switch valve 122 is arranged on the lye filling pipe 12 between two ends of the metering pump 13. The metering pump 13 is arranged in parallel with the alkali liquor filling pipeline 12, and the alkali liquor filling pipeline 12 is used as a standby line for bridging to fill alkali liquor into the water bath in the fault or maintenance state of the metering pump 13.
The above examples are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the present utility model.
Claims (4)
1. The utility model provides a water bath alkali liquor ration filling system, its characterized in that, including alkali liquor storage device (11), alkali liquor filling pipe (12), measuring pump (13), PH value detector (14), controlling means (15), alkali liquor filling pipe (12) one end is connected alkali liquor storage device (11), alkali liquor filling pipe (12) other end is used for connecting water bath (16), measuring pump (13) set up in on alkali liquor filling pipe (12), PH value detector (14) are used for measuring the PH value of pond water in water bath (16), measuring pump (13) PH value detector (14) all with controlling means (15) are connected, PH value detector (14) will gather the real-time PH value transmission of pond water in water bath (16) to controlling means (15), controlling means (15) are according to PH value control alkali liquor conveying volume in measuring pump (13).
2. The water bath Chi Jianye dosing system according to claim 1, characterized in that the metering pump (13) is a volumetric metering pump.
3. The water bath Chi Jianye quantitative filling system according to claim 2, wherein the lye storage device (11) is provided with a liquid inlet pipe (111) and a drain pipe (112), and the liquid inlet pipe (111) and the drain pipe (112) are respectively provided with a first switch valve (113) and a second switch valve (114).
4. A water bath Chi Jianye dosing system according to claim 3, characterised in that the dosing pump (13) is connected in parallel to the lye filling pipe (12), a third switch valve (121) is arranged on the lye filling pipe (12) between the lye storage device (11) and the dosing pump (13), and a fourth switch valve (122) is arranged on the lye filling pipe (12) between the two ends of the dosing pump (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320745680.4U CN220186550U (en) | 2023-04-07 | 2023-04-07 | Quantitative alkali liquor filling system for water bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320745680.4U CN220186550U (en) | 2023-04-07 | 2023-04-07 | Quantitative alkali liquor filling system for water bath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220186550U true CN220186550U (en) | 2023-12-15 |
Family
ID=89115791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320745680.4U Active CN220186550U (en) | 2023-04-07 | 2023-04-07 | Quantitative alkali liquor filling system for water bath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220186550U (en) |
-
2023
- 2023-04-07 CN CN202320745680.4U patent/CN220186550U/en active Active
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