CN210385814U - Device for descaling heating coil of reaction kettle - Google Patents
Device for descaling heating coil of reaction kettle Download PDFInfo
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- CN210385814U CN210385814U CN201921101559.8U CN201921101559U CN210385814U CN 210385814 U CN210385814 U CN 210385814U CN 201921101559 U CN201921101559 U CN 201921101559U CN 210385814 U CN210385814 U CN 210385814U
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Abstract
The utility model provides a device for descaling a heating coil of a reaction kettle. A scale remover storage tank in the device is communicated with a material liquid pump, an electromagnetic valve, a flow meter, a safety valve and a liquid mixing pipe through pipelines, a circulating water tank is communicated with a circulating water pump, a second flow meter, a fourth electromagnetic valve and a liquid mixing pipe through pipelines, the liquid mixing pipe is communicated with a heating coil in a reaction kettle, the heating coil is communicated with the second electromagnetic valve, a third electromagnetic valve, an acid-base tester and the circulating water tank through pipelines, and a water return pipe for the third electromagnetic valve is communicated with the material liquid pump, the scale remover storage tank. The descaling agent in the device is input into the heating coil by corresponding equipment to achieve the purpose of descaling, and the device has the advantages of simple structure, convenient use and maintenance and convenient popularization and application.
Description
Technical Field
The utility model relates to chemical industry equipment and reation kettle field, in particular to device of reation kettle heating coil scale removal.
Background
The scaling problem of chemical equipment or pipelines is a great problem troubling people, hard scale on the pipe wall of heat exchange equipment can greatly reduce heat exchange parameters, and the operating flow of a heating system can be influenced by the scaling of the pipelines. The major hazards of fouling include: the heat transfer effect of the heated surface is reduced by the scale masses with large thermal resistance, the pressure-bearing material is deformed and even explodes due to the increase of the wall temperature of the heated surface, the effective flow cross section is reduced and even blockage is caused, and the like, so that the scale has to be cleaned. Most chemical industry, the material of biomaterial enterprise reacts in reation kettle, material in the reation kettle heats in order to accelerate reaction rate usually, because the reation kettle coil pipe is heating or refrigerated can carry out violent cold and hot alternation to the material in the cauldron, can produce a lot of incrustations in this in-process heating coil pipe, thereby cause the heat exchange efficiency to descend, and the incrustation scale of heating coil pipe inner wall is difficult for clearing up, produced defect from this is because the heat exchange efficiency in heating coil pipe descends, will cause the waste of resource and energy in the whole reaction, secondly can have serious potential safety hazard in the in-process of reaction, especially can produce the danger of explosion under high temperature high pressure environment.
At present, the scale removal mode in the prior art is generally to add scale inhibitors, corrosion inhibitors and bactericidal algicides into circulating water, but the scale inhibitors and the corrosion inhibitors do not reduce the concentration of scale factor ions in water, and the scale inhibitors and the corrosion inhibitors cause secondary pollution along with the increasing evaporation concentration of cooling water and finally discharge during water change and cleaning. Other methods such as ultrasonic method, electronic descaling method, etc. have low energy conversion efficiency, and only change the crystal form of the scale, which cannot reduce the hardness of water quality and prevent the formation of scale. In addition, the electrochemical treatment technology such as direct current electrolysis has the disadvantages of over-high use voltage, unavoidable polarization effect, and low electrolysis efficiency after electrode fouling and oxidation, and the whole descaling effect is not obvious.
Disclosure of Invention
An object of the utility model is to provide a device of reation kettle heating coil scale removal.
The utility model discloses a design thought is that the mixed liquid that adopts hydrochloric acid aqueous solution and sodium hypochlorite aqueous solution constitutes the detergent, the detergent passes through the stock solution pump, flowmeter and circulating water mix, then in the heating coil among the input reation kettle, because the detergent has the decomposition effect to the incrustation scale, when the circulation flows in heating coil, can produce the reaction to the incrustation scale that knots on the heating coil inner wall, hydrochloric acid solution can dissolve the incrustation scale fast (mainly be the carbonate) in the detergent, and sodium hypochlorite solution can kill the microorganism in the heating coil, make the incrustation scale on the heating coil inner wall decompose and drop, and discharge from heating coil together along with the circulating water, its reaction equation is NaClO + H, the reaction equation is2O ＝ HClO + NaOH；HClO → HCl + [O]. And the discharged water scale is discharged from a sludge port through a filtering mechanism in the circulating water tank, and when the content of hypochlorous acid ions in the circulating water is higher, the circulating water is pumped into a scale remover storage tank through a feed liquid pump for a return pipe for recycling.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a device for descaling a heating coil of a reaction kettle, comprising: the device comprises a scale remover storage tank, a first electromagnetic valve, a first material liquid pump, a safety valve, a first flowmeter, a fifth electromagnetic valve, a circulating water tank, a circulating water pump, a fourth electromagnetic valve, a second flowmeter, a reaction kettle, a heating coil, an acid-base tester, a second electromagnetic valve, a third electromagnetic valve, a second material liquid pump, a filtering mechanism, a blow-off pipe and a control console, wherein the output end of the scale remover storage tank in the device is communicated with the input end of the first material liquid pump through a pipeline, the first electromagnetic valve is arranged on the connecting pipeline, the output end of the first material liquid pump is communicated with the input end of the first flowmeter through a pipeline, the safety valve is arranged on the connecting pipeline, the output end of the first flowmeter is communicated with a mixed liquid pipe through a pipeline, the circulating water tank is communicated with the input end of the circulating water pump through a pipeline, the output end of the circulating water pump, the output end of the second flowmeter is communicated with a liquid mixing pipe through a pipeline, the liquid mixing pipe is communicated with a heating coil in the reaction kettle, the output end of the heating coil is respectively communicated with a second electromagnetic valve and a third electromagnetic valve through pipelines, an acid-base tester is arranged on the connecting pipeline, the pipeline for the second electromagnetic valve is communicated with a circulating water tank, a water return pipe for the third electromagnetic valve is communicated with the input end of a second material liquid pump, and the output end of the second material liquid pump is communicated with a scale remover storage tank through a water return pipe.
A filtering mechanism is arranged in a circulating water tank in the device, a drain pipe is arranged at the bottom of the circulating water tank, a water supplementing pipe is arranged at the upper part of the circulating water tank, a fifth electromagnetic valve is arranged on the water supplementing pipe, and the water supplementing pipe is communicated with an external water inlet pipe.
A material liquid pump, a material liquid pump II, a circulating water pump, a flowmeter I, a flowmeter II, an acid-base tester, an electromagnetic valve I, an electromagnetic valve II, an electromagnetic valve III, an electromagnetic valve IV, an electromagnetic valve V and a safety valve in the device are respectively connected with a control console through data lines.
The descaling device for the heating coil of the reaction kettle operates according to the following steps:
1. inputting process parameters: before use, technological parameters of a first material liquid pump, a circulating water pump, a second material liquid pump, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a fifth electromagnetic valve, a first flowmeter, a second flowmeter and an acid-base tester are input into a control console;
2. mixing a scale remover: inputting the diluted hydrochloric acid solution, the diluted sodium hypochlorite solution and water into a descaling agent storage tank for mixing, wherein the mass percent concentration of the hydrochloric acid solution in the mixed descaling agent solution is 2-8%, and the mass percent concentration of the sodium hypochlorite solution is 0.5-1%;
3. conveying the scale remover and circulating water: the control console sends out an instruction and simultaneously opens the first electromagnetic valve, the fourth electromagnetic valve, the first material liquid pump and the circulating water pump to respectively convey the scale remover and the circulating water to the liquid mixing pipe for mixing, the first flowmeter arranged on the scale remover pipeline is used for controlling and metering the addition amount of the scale remover, the safety valve is used for ensuring the safety of the pipeline when the pressure in the scale remover pipeline is overlarge, and the second flowmeter arranged on the circulating water pipeline is used for controlling and metering the addition amount of the circulating water;
4. descaling the heating coil: the mixed liquid of the descaling agent and the circulating water enters a heating coil in the reaction kettle through a liquid mixing pipe, the mixed liquid containing the descaling agent circulates in the heating coil under the combined action of a material liquid pump and a circulating water pump, the circulation time is 2-3 hours, and scale in the heating coil can be thoroughly removed after the circulation is finished;
5. and (3) treatment of the scale cleaning water: when the acid-base tester detects that the pH value and the content of sodium hypochlorite ions in the discharged mixed liquid exceed the discharge standard, the acid-base tester sends a signal to the console, the console sends an instruction to close the second electromagnetic valve, and simultaneously opens the third electromagnetic valve and the second feed liquid pump, and the discharged mixed liquid is input into the scale remover storage tank along the water return pipe for recycling; when the acid-base tester detects that the pH value and the content of sodium hypochlorite ions in the mixed solution reach the discharge standard, the acid-base tester sends a signal to the console, the console sends an instruction to close the third electromagnetic valve and the second feed pump, the second electromagnetic valve is opened at the same time, the mixed solution enters the circulating water tank, and scale contained in the mixed solution is discharged from the sludge pipe through the filtering mechanism in the circulating water tank;
6. water replenishing of the circulating water tank: when water needs to be supplemented into the circulating water tank, the console sends an instruction to open the five electromagnetic valves, and water is supplemented into the circulating water tank through the water supplementing pipe.
The material liquid pump, the flowmeter, the circulating water pump, the acid-base tester and the electromagnetic valve used in the device are all mature and universal equipment or products in the field, wherein the material liquid pump, the flowmeter and the electromagnetic valve are all universal products in the prior art in the field, the corresponding material liquid pump, the corresponding electromagnetic valve and the corresponding flowmeter can be determined according to different process conditions, and the material liquid pump, the corresponding electromagnetic valve and the corresponding flowmeter in the prior art can be selected according to different application processes. The connection mode of the feed liquid pump and the flowmeter can be connected according to the instructions provided on the factory specifications of a product manufacturer. The object to be protected in the present application is the combination and corresponding connection relationship of various components, and the model number and connection mode of each component are not strictly limited.
Compared with the prior art, the utility model discloses an actively the effect does:
1. the device forms a descaling agent by the mixed solution of a hydrochloric acid aqueous solution and a sodium hypochlorite aqueous solution, the descaling agent is mixed with circulating water by a feed liquid pump, a flowmeter and then is input into a heating coil in a reaction kettle, and the aim of thorough descaling is achieved;
2. the device can accurately control the mixing of the descaling agent and the circulating water, can be quickly butted with the heating coil, and forms a closed automatic circulating system with a circulating water tank filtering mechanism;
3. the water scale discharged by the device is discharged from a sludge pipe through a filtering mechanism in a circulating water tank, and when the content of sodium hypochlorite ions in the circulating water is high, the circulating water is pumped into a scale remover storage tank through a feed liquid pump for a return water pipe for recycling;
4. the acid-base tester used in the device mainly controls the pH value and the content of sodium hypochlorite ions in the circulating water, when the circulating water is discharged to reach the standard, the circulating water enters a circulating water pool, and when the pH value in the circulating water exceeds the discharge standard, the circulating water is recycled in a descaling agent storage tank returned by a water return pipe;
5. the device has simple structure, convenient use and maintenance, and convenient popularization and application.
Drawings
FIG. 1 is a schematic structural diagram of a descaling device for a heating coil of a reaction kettle;
FIG. 2 is a connection diagram of control parts of a descaling device for a heating coil of a reaction kettle.
In the figure: 1. the scale remover comprises a scale remover storage tank, 2, a first electromagnetic valve, 3, a first material liquid pump, 4, a safety valve, 5, a first flowmeter, 6, a fifth electromagnetic valve, 7, a circulating water tank, 8, a circulating water pump, 9, a fourth electromagnetic valve, 10, a second flowmeter, 11, a reaction kettle, 12, a heating coil, 13, an acid-base tester, 14, a second electromagnetic valve, 15, a liquid mixing pipe, 16, a third electromagnetic valve, 17, a water return pipe, 18, a second material liquid pump, 19, a water replenishing pipe, 20, a filtering mechanism, 21, a drain pipe, 22 and a control console.
Detailed Description
The technical solution of the present invention will be further clearly and completely described with reference to the accompanying drawings and examples.
Referring to the attached drawings 1-2, the output end of a scale remover storage tank 1 in the device is communicated with the input end of a first feed liquid pump 3 through a pipeline, a first electromagnetic valve 2 is arranged on the connecting pipeline, the output end of the first feed liquid pump 3 is communicated with the input end of a first flowmeter 5 through a pipeline, a safety valve 4 is arranged on the connecting pipeline, the output end of the first flowmeter 5 is communicated with a mixed liquid pipe 15 through a pipeline, a circulating water tank 7 is communicated with the input end of a circulating water pump 8 through a pipeline, the output end of the circulating water pump 8 is communicated with the input end of a second flowmeter 10 through a pipeline, a fourth electromagnetic valve 9 is arranged on the connecting pipeline, the output end of the second flowmeter 10 is communicated with the mixed liquid pipe 15 through a pipeline, the mixed liquid pipe 15 is communicated with a heating coil 12 in a reaction kettle 11, the output end of the heating coil 12 is respectively communicated with a second electromagnetic valve 14 and a, the second electromagnetic valve 14 is communicated with the circulating water tank 7 through a pipeline, the third electromagnetic valve 16 is communicated with the input end of the second material liquid pump 18 through a water return pipe 17, and the output end of the second material liquid pump 18 is communicated with the scale remover storage tank 1 through the water return pipe 17.
A filtering mechanism 20 is arranged in a circulating water tank 7 in the device, a sewage discharge pipe 21 is arranged at the bottom of the circulating water tank 7, a water supplementing pipe 19 is arranged at the upper part of the circulating water tank 7, a number five electromagnetic valve 6 is arranged on the water supplementing pipe 19, and the water supplementing pipe 19 is communicated with an external water inlet pipe.
A first material liquid pump 3, a second material liquid pump 18, a circulating water pump 8, a first flowmeter 5, a second flowmeter 10, an acid-base tester 13, a first electromagnetic valve 2, a second electromagnetic valve 14, a third electromagnetic valve 16, a fourth electromagnetic valve 9, a fifth electromagnetic valve 6 and a safety valve 4 in the device are respectively connected with a control console 22 through data lines.
Examples
1. Inputting process parameters: before use, technological parameters of a first material liquid pump 2, a circulating water pump 8, a second material liquid pump 18, a first electromagnetic valve 2, a second electromagnetic valve 14, a third electromagnetic valve 16, a fourth electromagnetic valve 9, a fifth electromagnetic valve 6, a first flowmeter 5, a second flowmeter 10 and an acid-base tester 13 are input into a control console 22.
2. Mixing a scale remover: inputting the hydrochloric acid aqueous solution with the mass percentage concentration of 2-8% and the sodium hypochlorite aqueous solution with the mass percentage concentration of 0.5-1% into a descaling agent storage tank 1 for mixing.
3. Conveying the scale remover and circulating water: the control console 22 sends an instruction to simultaneously open the first electromagnetic valve 2, the fourth electromagnetic valve 9, the first material liquid pump 3 and the circulating water pump 8, the scale remover and the circulating water are respectively conveyed into the liquid mixing pipe 15 to be mixed, the first flowmeter 5 arranged on a scale remover pipeline is used for controlling and metering the addition amount of the scale remover, the safety valve 4 is used for ensuring the safety of the pipeline when the pressure in the scale remover pipeline is overlarge, and the second flowmeter 10 arranged on the circulating water pipeline is used for controlling and metering the addition amount of the circulating water.
4. Descaling the heating coil: the mixed liquid of the descaling agent and the circulating water enters a heating coil 12 in a reaction kettle 11 through a mixed liquid pipe 15, the mixed liquid containing the descaling agent circulates in the heating coil 12 under the action of a first feed liquid pump 3 and a circulating water pump 8, the circulation time is 2-3 hours, and when the circulation is finished, the scale in the heating coil 12 can be thoroughly removed.
5. And (3) treatment of the scale cleaning water: when the acid-base tester 13 detects that the content of the pH value and the sodium hypochlorite ions in the discharged mixed solution exceeds the discharge standard, the acid-base tester 13 sends a signal to the console 22, the console 22 sends an instruction to close the second electromagnetic valve 14, and simultaneously open the third electromagnetic valve 16 and the second feed liquid pump 18, and the discharged mixed solution is input into the scale remover storage tank 1 along the water return pipe 17 for recycling; when the acid-base tester 13 detects that the pH value and the content of sodium hypochlorite ions in the mixed solution reach the discharge standard, the acid-base tester 13 sends a signal to the console 22, the console 22 sends an instruction to close the third electromagnetic valve 16 and the second feed pump 18, and simultaneously opens the second electromagnetic valve 14, the mixed solution enters the circulating water tank 7, and scale contained in the mixed solution is discharged from the sludge pipe 21 through the filtering mechanism 20 in the circulating water tank 7.
6. Water replenishing of the circulating water tank: when water needs to be supplemented into the circulating water tank 7, the console 22 sends an instruction to open the five-solenoid valve 6, and water is supplemented into the circulating water tank 7 through the water supplementing pipe 19.
All of the features disclosed in this specification, or all of the combinations and steps of disclosed elements, may be combined or modified in any manner, except combinations and/or steps that are mutually exclusive. Any feature disclosed in this specification (including any accompanying claims and abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The above description is only a non-limiting embodiment of the present invention, and many embodiments can be derived, and it will be apparent to those skilled in the art that many modifications and improvements can be made without departing from the inventive concept and without making creative efforts, and these embodiments are all within the protection scope of the present invention.
Claims (3)
1. A device for descaling a heating coil of a reaction kettle, comprising: descaling agent storage tank (1), solenoid valve (2) No. one, a material liquid pump (3), relief valve (4), a flowmeter (5), solenoid valve (6) No. five, circulating water pond (7), circulating water pump (8), solenoid valve (9) No. four, No. two flowmeters (10), reation kettle (11), heating coil (12), acid-base tester (13), solenoid valve (14) No. two, solenoid valve (16), No. two material liquid pumps (18), filtering mechanism (20), blow off pipe (21) and control cabinet (22), its characterized in that: the output end of a scale remover storage tank (1) in the device is communicated with the input end of a feed liquid pump (3) through a pipeline, a first electromagnetic valve (2) is arranged on a connecting pipeline, the output end of the feed liquid pump (3) is communicated with the input end of a first flowmeter (5) through a pipeline, a safety valve (4) is arranged on the connecting pipeline, the output end of the first flowmeter (5) is communicated with a liquid mixing pipe (15) through a pipeline, a circulating water tank (7) is communicated with the input end of a circulating water pump (8) through a pipeline, the output end of the circulating water pump (8) is communicated with the input end of a second flowmeter (10) through a pipeline, a fourth electromagnetic valve (9) is arranged on the connecting pipeline, the output end of the second flowmeter (10) is communicated with a liquid mixing pipe (15) through a pipeline, the liquid mixing pipe (15) is communicated with a heating coil (12) in a reaction kettle (11), and the output end of the heating coil (12) is respectively communicated with a, an acid-base tester (13) is arranged on a connecting pipeline, a second electromagnetic valve (14) is communicated with the circulating water tank (7) through a pipeline, a third electromagnetic valve (16) is communicated with the input end of a second material liquid pump (18) through a water return pipe (17), and the output end of the second material liquid pump (18) is communicated with the scale remover storage tank (1) through the water return pipe (17).
2. The reactor heating coil descaling device according to claim 1, wherein: a filtering mechanism (20) is arranged in a circulating water tank (7) in the device, a sewage discharge pipe (21) is arranged at the bottom of the circulating water tank (7), a water supplementing pipe (19) is arranged at the upper part of the circulating water tank (7), a five-number electromagnetic valve (6) is arranged on the water supplementing pipe (19), and the water supplementing pipe (19) is communicated with an external water inlet pipe.
3. The reactor heating coil descaling device according to claim 1, wherein: a material liquid pump (3), a material liquid pump (18) II, a circulating water pump (8), a flow meter (5), a flow meter (10) II, an acid-base tester (13), a solenoid valve (2), a solenoid valve (14), a solenoid valve (16), a solenoid valve (9), a solenoid valve (6) III and a safety valve (4) in the device are respectively connected with a control console (22) through data lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921101559.8U CN210385814U (en) | 2019-07-15 | 2019-07-15 | Device for descaling heating coil of reaction kettle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921101559.8U CN210385814U (en) | 2019-07-15 | 2019-07-15 | Device for descaling heating coil of reaction kettle |
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| CN210385814U true CN210385814U (en) | 2020-04-24 |
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| CN201921101559.8U Active CN210385814U (en) | 2019-07-15 | 2019-07-15 | Device for descaling heating coil of reaction kettle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227398A (en) * | 2019-07-15 | 2019-09-13 | 新锦龙生物基材料（湖北）有限公司 | A kind of method and device of reaction kettle heating coil scale removal |
-
2019
- 2019-07-15 CN CN201921101559.8U patent/CN210385814U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227398A (en) * | 2019-07-15 | 2019-09-13 | 新锦龙生物基材料（湖北）有限公司 | A kind of method and device of reaction kettle heating coil scale removal |
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