CN213995859U - Petroleum processing reation kettle with sample function - Google Patents
Petroleum processing reation kettle with sample function Download PDFInfo
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- CN213995859U CN213995859U CN202022339439.0U CN202022339439U CN213995859U CN 213995859 U CN213995859 U CN 213995859U CN 202022339439 U CN202022339439 U CN 202022339439U CN 213995859 U CN213995859 U CN 213995859U
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Abstract
The utility model discloses a petroleum processing reation kettle with sample function, which comprises a tank body, the inside of the jar body is provided with rotary mechanism, the top of the jar body is provided with sampling mechanism, sampling mechanism one side is connected with the detection bottle, the inside detection subassembly that is provided with of detection bottle, top one side outer wall of the jar body has the inlet pipe through threaded fixation, bottom one side outer wall of the jar body has the discharging pipe through threaded fixation, the bottom outer wall of the jar body has the bracing piece more than three through the bolt fastening, circumference one side outer wall of the jar body has the controller through the bolt fastening, one side outer wall of controller has the display screen through the bolt fastening, the inside of the jar body is provided with heating mechanism, the top inner wall of the jar body has the air-cooler through the bolt fastening. The utility model discloses a particulate matter sensor, viscosity sensor, humidity transducer and pH value sensor carry out preliminary detection record to thick liquids to convert detected signal into the signal of telecommunication and export to the display screen through the controller, the staff's record of being convenient for.
Description
Technical Field
The utility model relates to a reation kettle technical field especially relates to a petroleum processing reation kettle with sample function.
Background
In the prior art, in the production of pharmaceutical and chemical processes, the slurry in a reaction kettle is generally required to be sampled along with the reaction, and whether the slurry in the kettle is qualified or not is detected. The traditional sampling operation needs workers to stop stirring operation, and the inlet or the bottom valve of the reaction kettle is opened for sampling, so that the production efficiency is low, and foreign matters are easily introduced by frequently opening the reaction kettle, which is very unfavorable for production.
Through retrieval, chinese patent publication No. CN207187716U discloses a petroleum processing reation kettle with sample function, including reation kettle body etc., reation kettle body right wall lower part is equipped with discharging device and sampling device, and discharging device is located sampling device top, and discharging device bottom right side is connected with the sampling device top.
A petroleum processing reation kettle with sample function in the above-mentioned patent exists following not enough: only sample this internal thick liquids of reation kettle through sampling device, do not carry out preliminary detection record to thick liquids for thick liquids after the sample carry out each aspect and detect the record, and the step is loaded down with trivial details complicated, consumes manpower and materials.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that the existing slurry does not carry out preliminary detection record in the prior art, and the petroleum processing reation kettle with sample function that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a petroleum processing reation kettle with sample function, which comprises a tank body, the inside of the jar body is provided with rotary mechanism, the top of the jar body is provided with sampling mechanism, sampling mechanism one side is connected with the detection bottle, the inside detection subassembly that is provided with of detection bottle, top one side outer wall of the jar body has the inlet pipe through the thread tightening, bottom one side outer wall of the jar body has the discharging pipe through the thread tightening, the bottom outer wall of the jar body has more than three bracing piece through the bolt tightening, circumference one side outer wall of the jar body has the controller through the bolt tightening, one side outer wall of controller has the display screen through the bolt tightening, the inside of the jar body is provided with heating mechanism, the top inner wall of the jar body has the air-cooler through the bolt tightening.
As a further aspect of the present invention: rotary mechanism includes motor, reduction gear, three stirring frame and rotation axis, and the reduction gear passes through the bearing to be set up on the top outer wall of the jar body, and the output of motor sets up on one side outer wall of reduction gear through the pivot, and the one end of rotation axis passes through the screw thread to be set up on one side outer wall of reduction gear, and every stirring frame all welds on the circumference outer wall of rotation axis.
As a further aspect of the present invention: sampling mechanism includes flow control valve, sampling tube, sample valve, diaphragm pump, conveyer pipe, back flow, sampling probe, floater, coupling hose, tee junction pipe and sample probe, and the circumference outer wall of conveyer pipe passes through the screw thread to be set up on the outer wall of top one side of the jar body, and one side outer wall of flow control valve passes through the screw thread to be set up on the circumference one side outer wall of conveyer pipe, and one side outer wall of diaphragm pump passes through the screw thread to be set up in one end on the conveyer pipe, and the sampling tube passes through the screw thread to be set up in the delivery port of diaphragm pump.
As a further aspect of the present invention: the one side outer wall of sample valve sets up on circumference one side outer wall of sampling tube through the screw thread, and the one end of back flow sets up on one side outer wall of diaphragm pump through the screw thread, and the other end of back flow is connected with the top of the jar body through the screw thread, and the one end of tee junction pipe sets up in the other end of conveyer pipe through the screw thread.
As a further aspect of the present invention: one end of the sampling probe tube is arranged on the inner circumferential wall of the three-way connecting pipe through threads, one end of the connecting hose is arranged on the inner circumferential wall of the three-way connecting pipe through threads, the floating ball is bonded to the other end of the connecting hose, and the sampling probe is arranged on the outer wall of one side of the floating ball through threads.
As a further aspect of the present invention: the detection assembly comprises a pressure gauge, a particulate matter sensor, a viscosity sensor, a humidity sensor and a pH value sensor, one end of the pressure gauge is arranged on the outer wall of one side of the top of the tank body through threads, one end of the viscosity sensor is arranged on the inner wall of one side of the bottom of the detection bottle through a bolt, one end of the particulate matter sensor is arranged on the inner wall of one side, close to the viscosity sensor, of the bottom of the detection bottle through a bolt, one end of the pH value sensor is arranged on the inner wall of one side, close to the particulate matter sensor, of the bottom of the detection bottle through a bolt, and one end of the humidity sensor is arranged on the inner wall of one side, close to the pH value sensor, of the bottom of the detection bottle through a bolt.
As a further aspect of the present invention: heating mechanism includes temperature controller, temperature sensor and three above heating pipes, and one side outer wall of temperature controller passes through the screw thread and sets up in one side circumference outer wall of the jar body, and temperature sensor passes through the bolt and sets up on the top inner wall of the jar body, and the both ends of every heating pipe all weld in the inside of the jar body, and every heating pipe all forms electric connection with the temperature controller through the relay.
Compared with the prior art, the utility model provides a petroleum processing reation kettle with sample function possesses following beneficial effect:
1. this a petroleum processing reation kettle for having sample function, detect the internal pressure of jar through the manometer, through particulate matter sensor, viscosity sensor, humidity transducer and pH value sensor's test probe carries out preliminary detection record to the thick liquids of sample, thereby convert detected signal into the signal of telecommunication output to the controller on, the controller passes through connecting tube and exports the signal of telecommunication to display screen, make the display screen show the testing result, the staff's of being convenient for record, save later stage check-out time simultaneously.
2. This a petroleum processing reation kettle for having sample function detects the internal temperature of jar through temperature sensor, converts the testing result into on signal of telecommunication transmits to the temperature controller simultaneously to the parameter on the accessible was observed the temperature controller judges the internal temperature of jar, and the temperature controller heats through relay output control signal control heating pipe, makes heating temperature adjustable, and then makes the internal temperature of jar adjustable.
3. This a petroleum processing reation kettle for having sample function, through starting the diaphragm pump, make the internal thick liquids of jar pass through the sample probe and get into to the diaphragm pump in, open the sample valve, make the thick liquids in the diaphragm pump enter into to detect in the bottle through the sampling tube, through how much of flow control valve control thick liquids sample, float along with the internal thick liquids of jar through the floater, thereby carry out sample detection to the thick liquids surface through the sampling probe, after the detection finishes, the accessible starts the diaphragm pump and takes out the thick liquids that detect in the bottle and input to the jar internally through the back flow, and then reach the effect that the thick liquids detected the circulation, avoid extravagant.
The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses simple structure, convenient operation.
Drawings
FIG. 1 is a schematic structural view of a petroleum processing reaction kettle with a sampling function according to the present invention;
FIG. 2 is a schematic diagram of a rear view structure of a petroleum processing reaction kettle with a sampling function according to the present invention;
FIG. 3 is a schematic view of a cross-sectional structure of a petroleum processing reaction kettle with a sampling function according to the present invention;
FIG. 4 is a schematic view of a cross-sectional structure of a detection bottle in a petroleum processing reaction kettle with a sampling function according to the present invention;
fig. 5 is the utility model provides a temperature sensor, particulate matter sensor, viscosity sensor, humidity transducer and pH value sensor circuit flow schematic diagram among oil processing reation kettle with sample function.
In the figure: 1-tank body, 2-flow regulating valve, 3-pressure gauge, 4-motor, 5-detection bottle, 6-sampling tube, 7-sampling valve, 8-diaphragm pump, 9-delivery pipe, 10-temp. controller, 11-display screen, 12-controller, 13-supporting rod, 14-return pipe, 15-speed reducer and 16-feeding pipe, 17-a discharge pipe, 18-a heating pipe, 19-a sampling probe, 20-a floating ball, 21-a connecting hose, 22-an air cooler, 23-a temperature sensor, 24-a three-way connecting pipe, 25-a sampling probe, 26-a stirring frame, 27-a rotating shaft, 28-a particle sensor, 29-a viscosity sensor, 30-a humidity sensor and 31-a pH value sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
A petroleum processing reaction kettle with a sampling function comprises a tank body 1, wherein a rotating mechanism is arranged inside the tank body 1, a sampling mechanism is arranged at the top of the tank body 1, one side of the sampling mechanism is connected with a detection bottle 5, a detection assembly is arranged inside the detection bottle 5, a feeding pipe 16 is fixed on the outer wall of one side of the top of the tank body 1 through threads, a discharging pipe 17 is fixed on the outer wall of one side of the bottom of the tank body 1 through threads, more than three support rods 13 are fixed on the outer wall of the bottom of the tank body 1 through bolts, a controller 12 is fixed on the outer wall of one side of the circumference of the tank body 1 through bolts, a display screen 11 is fixed on the outer wall of one side of the controller 12 through bolts, a heating mechanism is arranged inside the tank body 1, and an air cooler 22 is fixed on the inner wall of the top of the tank body 1 through bolts; stir the mediation through the thick liquids that is provided with rotary mechanism to jar body 1, take a sample through the thick liquids of sampling mechanism in to jar body 1, carry out preliminary detection record through the thick liquids of determine module to the sample, not later stage detects save time, heats through heating mechanism to jar body 1 and guarantees that the thick liquids take a sample in suitable temperature, through starting air-cooler 22 to cooling down, keeps the circulation of air in the jar body 1 simultaneously.
For uniform stirring, as shown in fig. 1, 2 and 3, the rotating mechanism includes a motor 4, a speed reducer 15, three stirring frames 26 and a rotating shaft 27, the speed reducer 15 is disposed on the outer wall of the top of the tank 1 through a bearing, the output end of the motor 4 is disposed on the outer wall of one side of the speed reducer 15 through the rotating shaft, one end of the rotating shaft 27 is disposed on the outer wall of one side of the speed reducer 15 through a thread, and each stirring frame 26 is welded on the outer wall of the circumference of the rotating shaft 27; through starter motor 4 for the output of motor 4 drives rotation axis 27 through reduction gear 15 and rotates, drives simultaneously and stirs 26 and carry out even rotatory stirring, and then reaches the effect of stirring the thick liquids in the jar body 1.
In order to sample the slurry in the tank bodies 1, 2 and 3, as shown in fig. 1, the sampling mechanism comprises a flow regulating valve 2, a sampling tube 6, a sampling valve 7, a diaphragm pump 8, a delivery pipe 9, a return pipe 14, a sampling probe 19, a floating ball 20, a connecting hose 21, a three-way connecting pipe 24 and a sampling probe 25, wherein the outer wall of the circumference of the delivery pipe 9 is arranged on the outer wall of one side of the top of the tank body 1 through threads, the outer wall of one side of the flow regulating valve 2 is arranged on the outer wall of one side of the circumference of the delivery pipe 9 through threads, the outer wall of one side of the diaphragm pump 8 is arranged at one end of the delivery pipe 9 through threads, the sampling tube 6 is arranged at the water outlet of the diaphragm pump 8 through threads, the outer wall of one side of the sampling valve 7 is arranged on the outer wall of one side of the circumference of the sampling tube 6 through threads, one end of the return pipe 14 is arranged on the outer wall of one side of the diaphragm pump 8 through threads, and the other end of the return pipe 14 is connected with the top of the tank body 1 through threads, one end of a three-way connecting pipe 24 is arranged at the other end of the conveying pipe 9 through threads, one end of a sampling probe 25 is arranged on the circumferential inner wall of the three-way connecting pipe 24 through threads, one end of a connecting hose 21 is arranged on the circumferential inner wall of the three-way connecting pipe 24 through threads, a floating ball 20 is bonded at the other end of the connecting hose 21, and a sampling probe 19 is arranged on the outer wall of one side of the floating ball 20 through threads; through starting diaphragm pump 8, make the thick liquids in the jar body 1 enter into to the diaphragm pump 8 in through sample probe 25, open sample valve 7, make the thick liquids in the diaphragm pump 8 pass through sampling tube 6 and detect in entering into detecting bottle 5, through how much of flow control valve 2 control thick liquids sample, float along with the thick liquids in the jar body 1 through floater 20, thereby carry out the sample detection to the thick liquids surface through sampling probe 19, the back that finishes detecting, the accessible starts the thick liquids that diaphragm pump 8 will detect in the bottle 5 and takes out and input to jar body 1 through back flow 14 in, and then reach the effect that the thick liquids detected the circulation, avoid extravagantly.
In order to perform preliminary detection and recording on sampled slurry, as shown in fig. 1, 2 and 3, the detection assembly comprises a pressure gauge 3, a particulate matter sensor 28, a viscosity sensor 29, a humidity sensor 30 and a pH sensor 31, one end of the pressure gauge 3 is arranged on the outer wall of one side of the top of the tank body 1 through threads, one end of the viscosity sensor 29 is arranged on the inner wall of one side of the bottom of the detection bottle 5 through a bolt, one end of the particulate matter sensor 28 is arranged on the inner wall of one side of the bottom of the detection bottle 5 close to the viscosity sensor 29 through a bolt, one end of the pH sensor 31 is arranged on the inner wall of one side of the bottom of the detection bottle 5 close to the particulate matter sensor 28 through a bolt, one end of the humidity sensor 30 is arranged on the inner wall of one side of the bottom of the detection bottle 5 close to the pH sensor 31 through a bolt, the particulate matter sensor 28 is BYC01, the viscosity sensor 29 is VIVO-Z-001, the model of the humidity sensor 30 is HSHCAA006A, and the model of the pH value sensor 31 is MIK-PH 3.0; detect the pressure in jar body 1 through manometer 3, through particulate matter sensor 28, viscosity sensor 29, humidity transducer 30 and pH value sensor 31's test probe carries out preliminary detection record to the thick liquids of sample, thereby convert detected signal into the signal of telecommunication and export to controller 12 on, controller 12 is through connecting line output signal of telecommunication to display screen 11, make display screen 11 show the testing result, the staff's of being convenient for record, save later stage check-out time simultaneously.
In order to ensure that the slurry is sampled at a proper temperature, as shown in fig. 1 and 3, the heating mechanism comprises a temperature controller 10, a temperature sensor 23 and more than three heating pipes 18, wherein the outer wall of one side of the temperature controller 10 is arranged on the outer wall of the circumference of one side of the tank body 1 through threads, the temperature sensor 23 is arranged on the inner wall of the top of the tank body 1 through bolts, two ends of each heating pipe 18 are welded inside the tank body 1, each heating pipe 18 is electrically connected with the temperature controller 10 through a relay, the type of the temperature sensor 23 is 80PK, and the type of the temperature controller 10 is YK 302; detect the temperature in jar body 1 through temperature sensor 23, convert the testing result into on electrical signal transmission to temperature controller 10 simultaneously to the accessible is observed the parameter on temperature controller 10 and is judged the temperature in jar body 1, and temperature controller 10 heats through relay output control signal control heating pipe 18, makes heating temperature adjustable to the temperature that the suitable sample of thick liquids, and then makes the testing result more accurate.
The working principle is as follows: when the sampling device is used, the motor 4 is started, the output end of the motor 4 drives the rotating shaft 27 to rotate through the speed reducer 15, the stirring frame 26 is driven to uniformly rotate and stir, the temperature in the tank body 1 is detected through the temperature sensor 23, the detection result is converted into an electric signal and is transmitted to the temperature controller 10, so that the temperature in the tank body 1 can be judged by observing parameters on the temperature controller 10, the temperature controller 10 outputs a control signal through the relay to control the heating pipe 18 to heat, the temperature in the tank body 1 is adjusted to the temperature suitable for sampling of slurry, the diaphragm pump 8 is started during sampling, the slurry in the tank body 1 enters the diaphragm pump 8 through the sampling probe 25, the sampling valve 7 is opened, the slurry in the diaphragm pump 8 enters the detection bottle 5 through the sampling pipe 6 to be detected, the sampling amount of the slurry is controlled through the flow regulating valve 2, float ball 20 floats along with the thick liquids of jar internal 1 through the floater, thereby carry out the sample detection to the thick liquids surface through sampling probe 19, after the detection finishes, the accessible starts the thick liquids of diaphragm pump 8 in with detecting bottle 5 and takes out and input to jar internal 1 through back flow 14, detect the pressure of jar internal 1 through manometer 3, through particulate matter sensor 28, viscosity sensor 29, humidity transducer 30 and pH value sensor 31's detecting probe carries out preliminary detection record to the thick liquids of sample, thereby convert detected signal into signal of telecommunication output to controller 12 on, controller 12 is through connecting tube output signal of telecommunication to display screen 11, make display screen 11 show the testing result, the staff's record of being convenient for.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A petroleum processing reaction kettle with a sampling function comprises a tank body (1) and is characterized in that, the inside of the jar body (1) is provided with rotary mechanism, the top of the jar body (1) is provided with sampling mechanism, sampling mechanism one side is connected with detection bottle (5), the inside determine module that is provided with of detection bottle (5), top one side outer wall of the jar body (1) has inlet pipe (16) through the thread tightening, bottom one side outer wall of the jar body (1) has discharging pipe (17) through the thread tightening, the bottom outer wall of the jar body (1) has bracing piece (13) more than three through the bolt tightening, circumference one side outer wall of the jar body (1) has controller (12) through the bolt tightening, one side outer wall of controller (12) has display screen (11) through the bolt tightening, the inside of the jar body (1) is provided with heating mechanism, the top inner wall of the jar body (1) has air-cooler (22) through the bolt tightening.
2. The oil processing reaction kettle with the sampling function according to claim 1, wherein the rotating mechanism comprises a motor (4), a speed reducer (15), three stirring frames (26) and a rotating shaft (27), the speed reducer (15) is arranged on the outer wall of the top of the tank body (1) through a bearing, the output end of the motor (4) is arranged on the outer wall of one side of the speed reducer (15) through the rotating shaft, one end of the rotating shaft (27) is arranged on the outer wall of one side of the speed reducer (15) through a thread, and each stirring frame (26) is welded on the outer wall of the circumference of the rotating shaft (27).
3. The oil processing reaction kettle with the sampling function according to claim 1, wherein the sampling mechanism comprises a flow control valve (2), a sampling tube (6), a sampling valve (7), a diaphragm pump (8), a delivery pipe (9), a return pipe (14), a sampling probe (19), a floating ball (20), a connecting hose (21), a three-way connecting pipe (24) and a sampling probe (25), the outer wall of the circumference of the delivery pipe (9) is arranged on the outer wall of one side of the top of the tank body (1) through threads, the outer wall of one side of the flow control valve (2) is arranged on the outer wall of one side of the circumference of the delivery pipe (9) through threads, the outer wall of one side of the diaphragm pump (8) is arranged at one end of the delivery pipe (9) through threads, and the sampling tube (6) is arranged at the water outlet of the diaphragm pump (8) through threads.
4. The oil processing reaction kettle with the sampling function according to claim 3, wherein one side outer wall of the sampling valve (7) is arranged on one side outer wall of the circumference of the sampling pipe (6) through a thread, one end of the return pipe (14) is arranged on one side outer wall of the diaphragm pump (8) through a thread, the other end of the return pipe (14) is connected with the top of the tank body (1) through a thread, and one end of the three-way connecting pipe (24) is arranged on the other end of the conveying pipe (9) through a thread.
5. The oil processing reaction kettle with the sampling function according to claim 3, wherein one end of the sampling probe (25) is arranged on the inner circumferential wall of the three-way connecting pipe (24) through a thread, one end of the connecting hose (21) is arranged on the inner circumferential wall of the three-way connecting pipe (24) through a thread, the floating ball (20) is adhered to the other end of the connecting hose (21), and the sampling probe (19) is arranged on the outer wall of one side of the floating ball (20) through a thread.
6. The petroleum processing reaction kettle with the sampling function according to claim 1, the detection assembly comprises a pressure gauge (3), a particulate matter sensor (28), a viscosity sensor (29), a humidity sensor (30) and a pH value sensor (31), one end of the pressure gauge (3) is arranged on the outer wall of one side of the top of the tank body (1) through threads, one end of the viscosity sensor (29) is arranged on the inner wall of one side of the bottom of the detection bottle (5) through a bolt, one end of the particulate matter sensor (28) is arranged on the inner wall of one side, close to the viscosity sensor (29), of the bottom of the detection bottle (5) through a bolt, one end of the pH value sensor (31) is arranged on the inner wall of one side, close to the particulate matter sensor (28), of the bottom of the detection bottle (5) through a bolt, and one end of the humidity sensor (30) is arranged on the inner wall of one side, close to the pH value sensor (31), of the bottom of the detection bottle (5) through a bolt.
7. The petroleum processing reaction kettle with the sampling function according to claim 1, wherein the heating mechanism comprises a temperature controller (10), a temperature sensor (23) and more than three heating pipes (18), one outer wall of one side of the temperature controller (10) is arranged on the outer wall of the circumference of one side of the tank body (1) through threads, the temperature sensor (23) is arranged on the inner wall of the top of the tank body (1) through bolts, two ends of each heating pipe (18) are welded inside the tank body (1), and each heating pipe (18) is electrically connected with the temperature controller (10) through a relay.
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| CN202022339439.0U CN213995859U (en) | 2020-10-20 | 2020-10-20 | Petroleum processing reation kettle with sample function |
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| CN202022339439.0U CN213995859U (en) | 2020-10-20 | 2020-10-20 | Petroleum processing reation kettle with sample function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114570316A (en) * | 2022-03-08 | 2022-06-03 | 贵州开阳青利天盟化工有限公司 | Production device of high-purity sodium tripolyphosphate |
| CN116474672A (en) * | 2023-04-17 | 2023-07-25 | 东营东方化学工业有限公司 | Scale remover for steering acid system and preparation method thereof |
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2020
- 2020-10-20 CN CN202022339439.0U patent/CN213995859U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114570316A (en) * | 2022-03-08 | 2022-06-03 | 贵州开阳青利天盟化工有限公司 | Production device of high-purity sodium tripolyphosphate |
| CN114570316B (en) * | 2022-03-08 | 2024-04-19 | 贵州开阳青利天盟化工有限公司 | Production device of high-purity sodium tripolyphosphate |
| CN116474672A (en) * | 2023-04-17 | 2023-07-25 | 东营东方化学工业有限公司 | Scale remover for steering acid system and preparation method thereof |
| CN116474672B (en) * | 2023-04-17 | 2024-02-23 | 东营东方化学工业有限公司 | Scale remover for steering acid system and preparation method thereof |
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