CN214438750U - Automatic injection control device for pipeline injection type pressurized mixed chemical agent - Google Patents
Automatic injection control device for pipeline injection type pressurized mixed chemical agent Download PDFInfo
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- CN214438750U CN214438750U CN202023167358.3U CN202023167358U CN214438750U CN 214438750 U CN214438750 U CN 214438750U CN 202023167358 U CN202023167358 U CN 202023167358U CN 214438750 U CN214438750 U CN 214438750U
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Abstract
The utility model belongs to the field of chemical agent injection control of petrochemical and industrial circulating water systems, in particular to a pipeline injection type pressurization mixed chemical agent automatic injection control device, which comprises a mother liquor tank, a chemical agent tank, a low-pressure flow-regulating electromagnetic pump, a high-pressure injection diaphragm pump, a mixer, an online flowmeter and a PLC automatic control box, wherein a check valve and the mixer are sequentially arranged between the mother liquor tank and the high-pressure injection diaphragm pump along the liquid outflow direction, a valve filter, the low-pressure flow-regulating electromagnetic pump, the online flowmeter and the check valve are sequentially arranged between the chemical agent tank and the high-pressure injection diaphragm pump along the agent outflow direction, the check valve and the mixer are sequentially arranged on an outlet pipe diaphragm pump of the high-pressure injection along the liquid outflow direction, the information output end of the PLC automatic control box online real-timely adjusts the running frequency of the low-pressure flow-regulating electromagnetic pump through current signals, the concentration of the pure chemical agent is adjusted on line, the device has high automation degree, and on-site and remote automatic monitoring can be realized.
Description
Technical Field
The utility model belongs to petrochemical and industrial circulating water system chemical agent annotate accuse field, concretely relates to automatic accuse device of annotating of mixed chemical agent of pipeline injection type pressure boost.
Background
In the production process of petrochemical and industrial circulating water systems, various chemical agents are required to be automatically injected into process system pipelines, such as: the method comprises the steps of injecting mother liquor into a mixing and stirring tank to be uniformly mixed, and then directly injecting the mother liquor into the mixing and stirring tank through a metering pump with adjustable flow, wherein the mother liquor of the whole tank of the agent is prepared in the stirring tank, the concentration of the agent cannot be automatically modified on line in time during injection, the concentration of the agent can be re-adjusted only after the agent solution in the whole tank is completely injected, and the high-pressure metering pump with the flow capable of being automatically adjusted on line in a high-pressure injection occasion is expensive in manufacturing cost.
Disclosure of Invention
In order to solve the problem in the prior art, the utility model discloses an automatic accuse device of annotating of mixed chemical agent of pipeline injection type pressure boost sets up low pressure transfer flow electromagnetic pump at high pressure filling diaphragm pump entry, mixes online filling through the high-pressure pump pressure boost, realizes that chemical agent annotates the accuse on line automatically.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a pipeline injection type pressurization mixed chemical agent automatic injection control device comprises a mother liquid tank, a chemical agent tank, a low-pressure flow-regulating electromagnetic pump, a high-pressure injection diaphragm pump, a mixer, an online flowmeter and a PLC automatic control box, wherein the mother liquid tank is used for temporarily storing mother liquid from a process pipeline, a liquid outlet of the mother liquid tank is connected with an inlet of the high-pressure injection diaphragm pump through a liquid outlet pipeline, a check valve and the mixer are sequentially arranged on an outlet pipeline of the high-pressure injection diaphragm pump along the liquid outflow direction, a valve filter and a check valve are sequentially arranged on the liquid outlet pipeline along the mother liquid outflow direction, the chemical agent tank is used for storing barrel-contained chemical agents from an industrial site, a liquid outlet of the chemical agent tank is connected with an inlet of the high-pressure injection diaphragm pump through a chemical agent pipeline, and a valve filter, a low-pressure flow-regulating electromagnetic pump and a PLC automatic control box are sequentially arranged on the chemical agent pipeline along the chemical outflow direction, The output end of the online flowmeter is connected with the information input end of the PLC automatic control box through a current signal, the information output end of the PLC automatic control box is connected with the low-pressure flow-regulating electromagnetic pump through a current signal, and the running frequency of the low-pressure flow-regulating electromagnetic pump is regulated on line in real time.
Furthermore, the pipeline injection type pressurized mixed chemical agent automatic injection control device further comprises a safety valve, the safety valve is connected with an outlet of the high-pressure injection diaphragm pump through a pipeline, and a discharge port of the safety valve is connected with an inlet of the high-pressure injection diaphragm pump.
Furthermore, the elevation position of the low-pressure flow-regulating electromagnetic pump is lower than the liquid outlet of the medicament tank, and liquid in the medicament tank can be automatically sucked into the low-pressure flow-regulating electromagnetic pump.
Furthermore, the elevation position of the high-pressure filling diaphragm pump is lower than the liquid outlet of the mother liquor tank, and the mother liquor in the mother liquor tank can be automatically sucked into the high-pressure filling diaphragm pump.
Furthermore, the mother liquid tank and the chemical agent tank are respectively fixed on the same elevation plane side by side through supporting legs.
Furthermore, pipeline injection type pressure boost mixed chemical agent automatic injection control device still includes sled dress and holds hourglass chassis, mother liquor jar, chemical agent jar, valve filter, check valve, low pressure transfer capacity electromagnetic pump, high-pressure filling diaphragm pump, relief valve, blender, on-line flow meter and PLC automatic control case respectively the interval set up on sled dress holds hourglass chassis.
Furthermore, the PLC automatic control box can automatically store and record the running time, the real-time flow, the additive concentration, the liquid level signal, the accumulated running data and the equipment outage state data of the injection control device and remotely transmit the running time, the real-time flow, the additive concentration, the liquid level signal, the accumulated running data and the equipment outage state data to a user central control room for real-time monitoring through communication signals.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model comprises a mother liquor tank, a chemical agent tank, a low-pressure flow-regulating electromagnetic pump, a high-pressure filling diaphragm pump, a mixer, an online flowmeter and a PLC automatic control box, wherein a check valve and a mixer are sequentially arranged between the mother liquor tank and the high-pressure filling diaphragm pump along the liquid outflow direction, a valve filter, a low-pressure flow-regulating electromagnetic pump, an online flowmeter and a check valve are sequentially arranged between the chemical agent tank and the high-pressure filling diaphragm pump along the agent outflow direction, the check valve and the mixer are sequentially arranged on an outlet pipe of the high-pressure filling diaphragm pump along the liquid outflow direction, the information output end of the PLC automatic control box adjusts the running frequency of the low-pressure flow-regulating electromagnetic pump on line in real time through current signals, and the low-pressure flow-regulating electromagnetic pump with low cost and adjustable flow rate is injected into a pipeline at the inlet of the high-pressure pump, and then the high-pressure filling diaphragm pump is used for pressurizing and mixing online filling, the purpose of online concentration adjustment of pure chemical agents is achieved, the high-pressure filling diaphragm pump only plays a role in pressurization and does not need flow adjustment, the high-pressure filling diaphragm pump greatly reduces the equipment cost for power frequency operation, the device is high in automation degree, and on-site and remote automatic monitoring can be achieved.
Drawings
FIG. 1 is a schematic diagram of the present invention;
in the upper diagram: 1-mother liquor tank; 2-chemical agent tank; 3-a valve filter; 4-a check valve; 5-low pressure flow rate regulating electromagnetic pump; 6-filling a diaphragm pump under high pressure; 7-a safety valve; 8-a mixer; 9-an online flow meter; 10-PLC automatic control box; 11-skid mounting of the leakage base plate.
Detailed Description
For a better understanding of the present invention, the following examples are provided to further illustrate the present invention, but the present invention is not limited to the following examples.
The utility model discloses a pipeline injection type pressurization mixed chemical automatic injection control device which is elaborated in combination with the attached drawing 1, comprising a mother liquor tank 1, a chemical tank 2, a low-pressure flow-regulating electromagnetic pump 5, a high-pressure injection diaphragm pump 6, a mixer 8, an online flowmeter 9 and a PLC automatic control box 10, wherein the mother liquor tank 1 and the chemical tank 2 are respectively fixed on the same elevation plane side by side through lower supporting legs, the mother liquor tank 1 is used for temporarily storing mother liquor from a process pipeline, the liquid outlet of the mother liquor tank 1 is connected with the inlet of the high-pressure injection diaphragm pump 6 through a liquid outlet pipeline, a valve filter 3 and a check valve 4 are sequentially arranged on the liquid outlet pipeline along the mother liquor outflow direction, the elevation position of the high-pressure injection diaphragm pump 6 is lower than the liquid outlet of the mother liquor tank 1, the mother liquor in the mother liquor tank 1 can be automatically sucked into the high-pressure diaphragm pump 6, the high-pressure injection diaphragm pump 6 pressurizes and injects a chemical mixed liquid to a required position through the power frequency work fixed flow, the high-pressure filling diaphragm pump 6 only plays a role of pressurization without flow regulation, a check valve 4 and a mixer 8 are sequentially arranged on an outlet pipeline of the high-pressure filling diaphragm pump 6 along a liquid outflow direction, a chemical agent tank 2 is used for storing barreled chemical agents from an industrial field, a liquid outlet of the chemical agent tank 2 is connected with an inlet of the high-pressure filling diaphragm pump 6 through an agent pipeline, a valve filter 3, a low-pressure flow regulation electromagnetic pump 5, an online flowmeter 9 and the check valve 4 are sequentially arranged on the agent pipeline along the agent outflow direction, the elevation position of the low-pressure flow regulation electromagnetic pump 5 is lower than that of the agent tank, liquid in the agent tank can be automatically sucked into the low-pressure flow regulation electromagnetic pump 5, the online adjustment of the agent flow concentration is realized through lower pipeline injection pressure and lower cost, the valve filter 3 is arranged to prevent foreign matters from entering the pump head to block the pump head, the check valve 4 is arranged to prevent the backflow of the pipeline, the online flowmeter 9 is used for monitoring the filling amount of the pure chemical agent on line in real time, the output end of the online flowmeter 9 is connected with the information input end of the PLC automatic control box 10 through a current signal, the online concentration adjustment of the chemical agent is realized through the pipeline injection of the low-pressure flow-adjusting electromagnetic pump 5, the high-pressure filling diaphragm pump 6 only plays the purpose of increasing and does not participate in the flow and concentration adjustment, the high-pressure filling cost can be greatly reduced through the combination, the PLC automatic control box 10 is connected with the online flowmeter 9 and the low-pressure flow-adjusting electromagnetic pump 5 through the current signal, the signal of the online flowmeter 9 is collected through a PID control adjustment method to be compared with the actually required chemical agent flow, the running frequency of the low-pressure flow-adjusting electromagnetic pump 5 is adjusted on line in real time, the real-time filling amount of the pure chemical agent is changed, and the liquid output amount of the high-pressure filling diaphragm pump is unchanged, therefore, the online real-time adjustment of the concentration is realized, the intelligent online closed-loop control of the filling concentration is realized, and the PLC automatic control box 10 can automatically store and record the running time, the real-time flow, the additive concentration, the liquid level signal, the accumulated running data and the equipment outage state data of the filling control device and remotely transmit the running time, the real-time flow, the additive concentration, the liquid level signal, the accumulated running data and the equipment outage state data to the user central control room for real-time monitoring through communication signals.
As an optional design, preferably, the pipeline injection type pressurized mixed chemical automatic injection control device further comprises a safety valve 7, the safety valve 7 is connected with an outlet of the high-pressure injection diaphragm pump 6 through a pipeline, and a discharge port of the safety valve 7 is connected with an inlet of the high-pressure injection diaphragm pump 6, so that overpressure of the pipeline is prevented to guarantee safe operation.
As an optional design, preferably, the automatic injection control device for pipeline injection type pressurized mixed chemical further comprises a skid-mounted leakage containing chassis 11, wherein the mother liquor tank 1, the chemical agent tank 2, the valve filter 3, the check valve 4, the low-pressure flow regulating electromagnetic pump 5, the high-pressure injection diaphragm pump 6, the safety valve 7, the mixer 8, the online flowmeter 9 and the PLC automatic control box 10 are respectively arranged on the skid-mounted leakage containing chassis 11 at intervals, and the whole skid-mounted modular structure facilitates factory manufacturing and long-distance transportation and field installation and debugging.
The utility model discloses the working process is as follows:
mother liquor flows out from a mother liquor tank 1, sequentially flows through a valve filter 3 and a check valve 4 and enters a high-pressure filling diaphragm pump 6 through an inlet of the high-pressure filling diaphragm pump 6, chemical agents flow out from a chemical agent tank 2 and then sequentially flows through the filter 3, a low-pressure flow-regulating electromagnetic pump 5, an online flowmeter 9 and the check valve 4 and enters the high-pressure filling diaphragm pump 6 through an inlet of the high-pressure filling diaphragm pump 6, the online flowmeter 9 monitors the amount of the derived chemical agents on line, the high-pressure filling diaphragm pump 6 pressurizes an outlet pipeline, the mother liquor of the injection-controlled chemical agents is fully mixed and then is derived through a mixer 8, during the injection control work, a PLC automatic control box 10 collects signals of the online flowmeter 9 through a PID control adjusting method and compares the actual required agent flow, the running frequency of the low-pressure flow-regulating electromagnetic pump 5 is adjusted on line in real time, the real-time adding amount of pure chemical agents is changed, and the liquid output amount of the high-pressure filling diaphragm pump is unchanged, thereby realize the online real-time regulation of concentration, the utility model discloses the equipment cost is low, and degree of automation is high, convenient and practical.
The above description is only the application embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and the right scope of the present invention cannot be limited thereby, and any equivalent changes made according to the technical solution of the present invention should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides an automatic accuse device that annotates of mixed chemical agent of pipeline injection type pressure boost, characterized by: the device comprises a mother liquor tank, a chemical agent tank, a low-pressure flow-regulating electromagnetic pump, a high-pressure filling diaphragm pump, a mixer, an online flowmeter and a PLC automatic control box, wherein the mother liquor tank is used for temporarily storing mother liquor from a process pipeline, a liquor outlet of the mother liquor tank is connected with an inlet of the high-pressure filling diaphragm pump through a liquor outlet pipeline, a check valve and the mixer are sequentially arranged on an outlet pipeline of the high-pressure filling diaphragm pump along a liquor outflow direction, a valve filter and a check valve are sequentially arranged on the liquor outlet pipeline along the liquor outflow direction, the chemical agent tank is used for storing barreled chemical agents from an industrial site, the liquor outlet of the chemical agent tank is connected with the inlet of the high-pressure filling diaphragm pump through an agent pipeline, the valve filter, the low-pressure flow-regulating electromagnetic pump, the online flowmeter and the check valve are sequentially arranged on the agent pipeline along the agent outflow direction, and an output end of the online flowmeter is connected with an information input end of the PLC automatic control box through a current signal, the information output end of the PLC automatic control box is connected with the low-voltage flow-regulating electromagnetic pump through a current signal, and the running frequency of the low-voltage flow-regulating electromagnetic pump is regulated in real time on line.
2. The automatic injection control device for the injection pressurized mixed chemical agent in the pipeline according to claim 1, wherein: the safety valve is connected with an outlet of the high-pressure filling diaphragm pump through a pipeline, and a discharge port of the safety valve is connected with an inlet of the high-pressure filling diaphragm pump.
3. The automatic injection control device for the injection type pressurized mixed chemical agent of the pipeline as claimed in claim 2, wherein: the elevation position of the low-pressure flow-regulating electromagnetic pump is lower than the liquid outlet of the medicament tank, and liquid in the medicament tank can be automatically sucked into the low-pressure flow-regulating electromagnetic pump.
4. The automatic injection control device for the injection type pressurized mixed chemical agent of the pipeline as claimed in claim 3, wherein: the elevation position of the high-pressure filling diaphragm pump is lower than the liquid outlet of the mother liquor tank, and the mother liquor in the mother liquor tank can be automatically sucked into the high-pressure filling diaphragm pump.
5. The automatic injection control device for the injection type pressurized mixed chemical agent of the pipeline as claimed in claim 4, wherein: the mother liquid tank and the chemical agent tank are respectively fixed on the same elevation plane side by side through supporting legs.
6. The automatic injection control device for the injection type pressurized mixed chemical agent of the pipeline as claimed in claim 5, wherein: the device is characterized by further comprising a skid-mounted leakage containing chassis, wherein a mother liquid tank, a chemical agent tank, a valve filter, a check valve, a low-pressure flow regulating electromagnetic pump, a high-pressure filling diaphragm pump, a safety valve, a mixer, an online flowmeter and a PLC automatic control box are arranged on the skid-mounted leakage containing chassis at intervals respectively.
7. The automatic injection control device for the injection type pressurized mixed chemical agent in the pipeline according to any one of claims 1 to 6, which is characterized in that: the PLC automatic control box can automatically store and record the operation time, real-time flow, additive concentration, liquid level signals, accumulated operation data and equipment outage state data of the injection control device and remotely transmit the data to a user central control room for real-time monitoring through communication signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023167358.3U CN214438750U (en) | 2020-12-25 | 2020-12-25 | Automatic injection control device for pipeline injection type pressurized mixed chemical agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023167358.3U CN214438750U (en) | 2020-12-25 | 2020-12-25 | Automatic injection control device for pipeline injection type pressurized mixed chemical agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214438750U true CN214438750U (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023167358.3U Active CN214438750U (en) | 2020-12-25 | 2020-12-25 | Automatic injection control device for pipeline injection type pressurized mixed chemical agent |
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| Country | Link |
|---|---|
| CN (1) | CN214438750U (en) |
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2020
- 2020-12-25 CN CN202023167358.3U patent/CN214438750U/en active Active
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