CN118022650A - Raw material conveying liquid level measuring device for producing propylene carbonate - Google Patents

Raw material conveying liquid level measuring device for producing propylene carbonate Download PDF

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Publication number
CN118022650A
CN118022650A CN202410430576.5A CN202410430576A CN118022650A CN 118022650 A CN118022650 A CN 118022650A CN 202410430576 A CN202410430576 A CN 202410430576A CN 118022650 A CN118022650 A CN 118022650A
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China
Prior art keywords
face
liquid level
sliding
limiting
raw material
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Granted
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CN202410430576.5A
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Chinese (zh)
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CN118022650B (en
Inventor
谢庆国
李瑞琛
曹国栋
丁维鹏
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Shandong Lixing Chemical Co ltd
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Shandong Lixing Chemical Co ltd
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Priority to CN202410430576.5A priority Critical patent/CN118022650B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006Controlling or regulating processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006Controlling or regulating processes
    • B01J19/002Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D317/00Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D317/08Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
    • C07D317/10Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
    • C07D317/32Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D317/34Oxygen atoms
    • C07D317/36Alkylene carbonates; Substituted alkylene carbonates
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049Controlling or regulating processes
    • B01J2219/00182Controlling or regulating processes controlling the level of reactants in the reactor vessel
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/141Feedstock

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

The invention provides a raw material conveying liquid level measuring device for producing propylene carbonate, which relates to the field of propylene carbonate production and comprises the following components: a reaction kettle; two first communicating tube heads are arranged at the upper part and the lower part of the left side of the reaction kettle, and the left ends of the two first communicating tube heads are connected with a stainless steel shell; the stainless steel shell is characterized in that a supporting shell cover is arranged on the left end face of the stainless steel shell, and four guide rods are fixedly connected inside the supporting shell cover. Under the cooperation of three indication arrows and liquid level scale marks arranged on the front end face, the rear end face and the left end face of the supporting shell, a worker can observe in the left direction, the front direction and the rear direction of the liquid level measuring device when observing the liquid level value of the raw material, so that the monitoring of the liquid level of the raw material in the reaction kettle is more convenient; the device solves the problem that the traditional upper turning plate type liquid level measuring device of the reaction kettle can only observe in front of the device when observing, thereby being excessively troublesome when monitoring the liquid level of raw materials in the reaction kettle.

Description

Raw material conveying liquid level measuring device for producing propylene carbonate
Technical Field
The invention relates to the technical field of propylene carbonate production, in particular to a raw material conveying liquid level measuring device for producing propylene carbonate.
Background
With the continuous growth of global economy and the continuous expansion of human activities, the demand for chemical materials is growing. Propylene carbonate is an important chemical raw material, and is indispensable in the fields of plastic industry, paint, adhesive and the like due to its unique chemical properties and wide application range. Propylene carbonate, a high molecular weight compound, is obtained by reacting acrylic acid with an alcohol such as glycerol or ethylene glycol. At present, when raw materials of propylene carbonate such as ethylene glycol are conveyed to the inside of a reaction kettle, the liquid level in the reaction kettle is required to be monitored in real time through a liquid level measuring device in order to ensure production safety due to factors such as large size of the reaction kettle, continuous change of occupied space and liquid state.
The liquid level of the raw materials in the reaction kettle is generally measured through the flap type liquid level measuring device on the traditional reaction kettle, but the flap type liquid level measuring device can only observe in front of the device when observing, and when a worker is positioned behind the flap type liquid level measuring device, the worker also needs to walk in front of the device to observe, so that the liquid level of the raw materials in the reaction kettle is excessively troublesome when being monitored, and the flap type liquid level measuring device on the traditional reaction kettle is difficult to bring effective warning effect and automatic forced closing effect to the worker when the liquid level of the raw materials in the reaction kettle is higher than a normal value in the use process, and potential safety hazards are brought to the production of propylene carbonate.
Disclosure of Invention
The embodiment of the disclosure relates to a raw material conveying liquid level measuring device for producing propylene carbonate, which is characterized in that under the cooperation of three indication arrows and liquid level scale marks arranged on the front end face, the rear end face and the left end face of a supporting shell cover, a worker can observe in the left direction, the front direction and the rear direction of the liquid level measuring device when observing a liquid level value of raw materials, and therefore when the worker is positioned at the rear of the liquid level measuring device, the worker does not need to walk to the front of the device to observe, and the liquid level of raw materials inside a reaction kettle is monitored more conveniently.
In a first aspect of the present disclosure, there is provided a raw material delivery liquid level measurement device for producing propylene carbonate, specifically comprising: a reaction kettle; two first communicating tube heads are arranged at the upper part and the lower part of the left side of the reaction kettle, and the left ends of the two first communicating tube heads are connected with a stainless steel shell; the stainless steel shell is characterized in that a supporting shell is arranged on the left end face of the stainless steel shell, four guide rods are fixedly connected inside the supporting shell, and a passive lifting block is connected inside the supporting shell in a sliding manner through the four guide rods; an adjustable pressing mechanism is arranged at the upper part of the supporting shell cover, and a limiting component is arranged on the adjustable pressing mechanism; the top of the reaction kettle is connected with a feeding pipe fitting, and an electromagnetic valve is arranged on the feeding pipe fitting.
In at least some embodiments, the upper and lower parts on the right side of the stainless steel shell are provided with two second communicating tube heads, and the two second communicating tube heads are respectively connected with the two first communicating tube heads; the controller is installed to the terminal surface before the stainless steel casing, and the audible and visual alarm is installed at stainless steel casing top.
In at least some embodiments, four vertical guide rods are fixedly connected inside the stainless steel shell, and floating blocks are slidably connected outside the four vertical guide rods inside the stainless steel shell; a gap is formed in the left end face of the floating block, and a driving magnet is fixedly arranged in the gap on the floating block; the buoyancy of the floating block is larger than the gravity of the driving magnet, the driven lifting block, the driven magnet, the indication arrow and the pressing switch; the push switch, the audible and visual alarm and the electromagnetic valve are electrically connected with the controller.
In at least some embodiments, the front end face, the rear end face and the left end face of the supporting housing are provided with a strip-shaped through hole, and the front end face, the rear end face and the left end face of the supporting housing are provided with liquid level scale marks.
In at least some embodiments, the adjustable pressing mechanism comprises 匚 font backup pad, vertical slide bar, slide drums, slide bar, rack and pressing plate, 匚 font backup pad fixed mounting is in support shell cover upper end, and 匚 font backup pad up end fixedly connected with four slide drums, and every slide drum is inside all to be connected with a slide bar in a sliding manner, and four slide bar lower extreme fixedly connected with pressing plate, and pressing plate up end fixedly connected with vertical slide bar, and vertical slide bar rear end fixedly mounted has the rack.
In at least some embodiments, a rectangular notch is formed in the middle of the rear side of the top end surface of the 匚 -shaped supporting plate, and two sliding blocks are arranged in the rectangular notch; the left end face and the right end face of the vertical sliding rod are respectively provided with a strip-shaped sliding groove, the two strip-shaped sliding grooves are respectively in sliding connection with the two sliding blocks inside the rectangular notch, scale marks are uniformly arranged on the left side of the front end face of the vertical sliding rod, and limit insertion holes are uniformly formed on the right side of the front end face of the vertical sliding rod.
In at least some embodiments, the right end surface of the passive lifting block is fixedly connected with a passive magnet, and the passive magnet and the active magnet are magnetically attracted; the front end face, the rear end face and the left end face of the passive lifting block are both provided with an indication arrow, and a pressing switch is arranged at the top of the passive lifting block.
In at least some embodiments, the limiting component comprises a limiting sliding shell, a limiting sliding block, a T-shaped pulling rod and a limiting inserting rod, wherein the limiting sliding shell is fixedly arranged on the front side of the top of the 匚 -shaped supporting plate, and the limiting sliding block is connected inside the limiting sliding shell in a sliding manner; the front end surface of the limiting sliding block is fixedly connected with a T-shaped pulling rod penetrating through the front side wall of the limiting sliding shell, and a spring is sleeved outside the T-shaped pulling rod and inside the limiting sliding shell; the rear end face of the limiting sliding block is provided with a limiting inserted rod penetrating through the rear side wall of the limiting sliding shell.
In at least some embodiments, the limit plug is plugged into one of the limit jacks when the limit assembly is in the limit state.
In at least some embodiments, the device further comprises a manual driving assembly, wherein the manual driving assembly is arranged on the 匚 -shaped supporting plate and comprises a driving shaft, a driven shaft and a driving gear, the driving shaft and the driven shaft are rotationally connected to the 匚 -shaped supporting plate, a driving belt pulley is fixedly arranged at the rear end of the driving shaft, a driven belt pulley is fixedly arranged at the rear end of the driven shaft, and the driven belt pulley is in transmission connection with the driving belt pulley through a belt; and a driving gear is fixedly arranged at the front end of the driven shaft and meshed with the rack.
The invention provides a raw material conveying liquid level measuring device for producing propylene carbonate, which has the following beneficial effects:
Under the cooperation of three indication arrows and liquid level scale marks arranged on the front end face, the rear end face and the left end face of the supporting shell cover, a worker can observe in the left direction, the front direction and the rear direction of the liquid level measuring device when observing the liquid level value of raw materials, and therefore when the worker is positioned at the rear of the liquid level measuring device, the worker does not need to walk to the front of the device to observe, and the liquid level monitoring device is more convenient and rapid to monitor the liquid level of raw materials inside the reaction kettle.
Through the cooperation of passive elevating block, push switch and adjustable pressing mechanism, can be in the push switch upward movement in-process, when the distance that passive elevating block upwards moved reaches the preset height, the button on the push switch will be pressed by the push plate, the controller starts audible and visual annunciator this moment, close two solenoid valves, bring effectual warning effect for the staff through the audible and visual annunciator of start, then through forcing two solenoid valves to close for the feeding pipe fitting no longer carries the raw materials to reation kettle inside, avoid leading to the inside pressure of reation kettle to rise, burst phenomenon such as because of the reaction liquid level is too high, avoid bringing the potential safety hazard for the production of propylene carbonate.
Through the setting of adjustable pressing mechanism, can be according to the appointed height of raw materials liquid level, adjust the height of pressing the board, during the regulation, only need through manual with the forward pulling of T type pulling rod, can take spacing sliding block and spacing inserted bar to pull out spacing inserted bar from one of them spacing jack is inside, then rethread rotates the drive shaft, make driving pulley take driven pulley, driven shaft and drive gear rotate, then take rack, vertical slide bar and pressing board through drive gear and reciprocate, after pressing board height adjustment, with T type pulling rod loosen can, this liquid level measurement device's flexibility has been improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
The drawings described below are only for illustration of some embodiments of the invention and are not intended to limit the invention.
In the drawings:
FIG. 1 shows a schematic diagram of the structure of the front perspective view of the present application;
FIG. 2 shows a schematic view of the structure of the rear perspective of the present application;
FIG. 3 shows a schematic diagram of the structure of the present application in a disassembled state;
FIG. 4 shows a schematic structural view of a stainless steel housing of the present application in partial cross-section;
FIG. 5 shows a schematic diagram of the structure of the application after the floating block, the active magnet and the passive lifting block are disassembled;
FIG. 6 shows a schematic view of the structure of the support housing, adjustable pressing mechanism, passive lifting block and manual drive assembly of the present application;
FIG. 7 shows a schematic view of the construction of the 匚 -shaped support plate, rack and manual drive assembly of the present application;
FIG. 8 shows a schematic view of the structure of the slide of the present application after the slide is disassembled;
FIG. 9 shows a schematic structural view of the rack and manual drive assembly of the present application;
FIG. 10 shows a partially enlarged schematic construction of the present application at A in FIG. 1;
fig. 11 shows a schematic structural view of the vertical sliding rod and the limiting assembly of the present application after being disassembled.
List of reference numerals
A reaction kettle; 101. a feed tube; 102. an electromagnetic valve; 103. a first communicating tube head; 2. a stainless steel housing; 201. a second communicating tube head; 202. a controller; 203. an audible and visual alarm; 204. a vertical guide rod; 205. a floating block; 206. an active magnet; 3. a support housing; 301. a strip-shaped through opening; 302. a guide rod; 4. an adjustable pressing mechanism; 401. 匚 -shaped supporting plates; 4011. a rectangular notch; 402. a vertical slide bar; 4021. a strip-shaped chute; 4022. limiting jack; 403. a slide cylinder; 404. a slide bar; 405. a rack; 406. pressing the plate; 5. a passive lifting block; 501. a passive magnet; 502. an indication arrow; 503. pressing the switch; 6. a manual drive assembly; 601. a drive shaft; 602. a driven shaft; 603. a drive gear; 7. a limit component; 701. a limiting sliding shell; 702. a limit sliding block; 703. a T-shaped pull rod; 704. and a limiting inserted link.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention.
Embodiment one: please refer to fig. 1 to 11:
The invention provides a raw material conveying liquid level measuring device for producing propylene carbonate, which comprises the following components: a reaction kettle 1; the upper and lower parts of the left side of the reaction kettle 1 are provided with two first communicating tube heads 103, the left ends of the two first communicating tube heads 103 are connected with a stainless steel shell 2, the stainless steel shell 2 is made of 304 stainless steel, and the influence on the magnetic attraction between the driving magnet 206 and the driven magnet 501 is avoided; the left end face of the stainless steel shell 2 is provided with a supporting shell cover 3, four guide rods 302 are fixedly connected inside the supporting shell cover 3, and a passive lifting block 5 is slidingly connected inside the supporting shell cover 3 through the four guide rods 302; an adjustable pressing mechanism 4 is arranged at the upper part of the supporting shell cover 3, and a limiting component 7 is arranged on the adjustable pressing mechanism 4; the top of the reaction kettle 1 is connected with a feeding pipe fitting 101, and an electromagnetic valve 102 is arranged on the feeding pipe fitting 101; two second communicating tube heads 201 are arranged at the upper part and the lower part of the right side of the stainless steel shell 2, and the two second communicating tube heads 201 are respectively connected with the two first communicating tube heads 103; the controller 202 is installed to the terminal surface before the stainless steel casing 2, and the audible and visual attention device 203 is installed at stainless steel casing 2 top for bring the warning effect for the staff.
Four vertical guide rods 204 are fixedly connected inside the stainless steel shell 2, and floating blocks 205 are slidably connected outside the four vertical guide rods 204 in the stainless steel shell 2; a gap is formed in the left end face of the floating block 205, and a driving magnet 206 is fixedly arranged in the gap on the floating block 205; the buoyancy of the floating block 205 is greater than the gravity of the active magnet 206, the passive lifting block 5, the passive magnet 501, the indication arrow 502 and the push switch 503; the pressing switch 503, the audible and visual alarm 203 and the electromagnetic valve 102 are electrically connected with the controller 202; the front end face, the rear end face and the left end face of the supporting shell cover 3 are provided with a strip-shaped through hole 301, and the front end face, the rear end face and the left end face of the supporting shell cover 3 are provided with liquid level scale marks for measuring liquid level.
The adjustable pressing mechanism 4 comprises a 匚 -shaped supporting plate 401, vertical sliding rods 402, sliding cylinders 403, sliding rods 404, racks 405 and pressing plates 406, wherein the 匚 -shaped supporting plate 401 is fixedly arranged at the upper end of the supporting shell 3, four sliding cylinders 403 are fixedly connected to the upper end face of the 匚 -shaped supporting plate 401, one sliding rod 404 is slidably connected to the inside of each sliding cylinder 403, the pressing plates 406 are fixedly connected to the lower ends of the four sliding rods 404, the vertical sliding rods 402 are fixedly connected to the upper end faces of the pressing plates 406, and racks 405 are fixedly arranged on the rear end faces of the vertical sliding rods 402; a rectangular notch 4011 is formed in the middle of the rear side of the top end face of the 匚 -shaped supporting plate 401, and two sliding blocks are arranged in the rectangular notch 4011; the left end face and the right end face of the vertical sliding rod 402 are respectively provided with a strip-shaped sliding groove 4021, the two strip-shaped sliding grooves 4021 are respectively in sliding connection with two sliding blocks inside the rectangular notch 4011, scale marks are uniformly arranged on the left side of the front end face of the vertical sliding rod 402, and limit insertion holes 4022 are uniformly formed on the right side of the front end face of the vertical sliding rod 402 and are used for being inserted into limit inserted rods 704.
The right end face of the passive lifting block 5 is fixedly connected with a passive magnet 501, and the passive magnet 501 and the active magnet 206 are magnetically attracted; an indication arrow 502 is arranged on the front end face, the rear end face and the left end face of the passive lifting block 5, and a pressing switch 503 is arranged on the top of the passive lifting block 5 and used for touching the audible light warning device 203 and forcibly closing the electromagnetic valve 102.
The limiting assembly 7 comprises a limiting sliding shell 701, a limiting sliding block 702, a T-shaped pulling rod 703 and a limiting inserting rod 704, wherein the limiting sliding shell 701 is fixedly arranged on the front side of the top of the 匚 -shaped supporting plate 401, and the limiting sliding block 702 is connected inside the limiting sliding shell 701 in a sliding manner; the front end surface of the limiting sliding block 702 is fixedly connected with a T-shaped pulling rod 703 penetrating through the front side wall of the limiting sliding shell 701, and a spring is sleeved outside the T-shaped pulling rod 703 and inside the limiting sliding shell 701; the rear end surface of the limit sliding block 702 is provided with a limit inserted rod 704 penetrating through the rear side wall of the limit sliding shell 701; when the limiting assembly 7 is in a limiting state, the limiting plunger 704 is inserted into one of the limiting jacks 4022; through the setting of spacing subassembly 7, be used for spacing vertical slide bar 402 and pressing plate 406.
In the second embodiment, as shown in fig. 6, 7 and 9, the device further comprises a manual driving assembly 6, the manual driving assembly 6 is arranged on a 匚 -shaped supporting plate 401, the manual driving assembly 6 comprises a driving shaft 601, a driven shaft 602 and a driving gear 603, the driving shaft 601 and the driven shaft 602 are rotatably connected to the 匚 -shaped supporting plate 401, a driving belt pulley is fixedly arranged at the rear end of the driving shaft 601, a driven belt pulley is fixedly arranged at the rear end of the driven shaft 602, and the driven belt pulley is in transmission connection with the driving belt pulley through a belt; a driving gear 603 is fixedly arranged at the front end of the driven shaft 602, and the driving gear 603 is meshed with the rack 405; by the arrangement of the manual driving assembly 6, the convenience of adjusting the height of the pressing plate 406 is improved.
The working principle of the embodiment is as follows: when the device is used, raw materials of propylene carbonate such as ethylene glycol are conveyed to the inside of the reaction kettle 1 through the feeding pipe fitting 101 to react, after the raw materials of propylene carbonate such as ethylene glycol are conveyed to the inside of the reaction kettle 1, the raw materials flow to the inside of the stainless steel shell 2, the liquid level of the raw materials in the stainless steel shell 2 is the same as the liquid level of the raw materials in the reaction kettle 1, then under the action of buoyancy, the floating block 205 moves upwards with the driving magnet 206, under the action of magnetic force, the driving magnet 206 moves upwards with the driven magnet 501, the driven lifting block 5, the indication arrow 502 and the pressing switch 503, and then under the action of the cooperation of the three indication arrows 502 and the liquid level scale marks arranged on the front end face, the rear end face and the left end face of the support shell 3, a worker can observe the liquid level value of the raw materials in three directions of the device.
In the upward movement process of the pressing switch 503, when the upward movement distance of the passive lifting block 5 reaches the preset height, after the button on the pressing switch 503 is tightly contacted with the bottom end surface of the pressing plate 406, the button on the pressing switch 503 is pressed by the pressing plate 406, at this time, the controller 202 starts the audible and visual annunciator 203, closes the two electromagnetic valves 102, brings effective warning effect to staff through the started audible and visual annunciator 203, and then forcibly closes the two electromagnetic valves 102, so that the feeding pipe fitting 101 does not convey raw materials to the inside of the reaction kettle 1.
In this context, the following points need to be noted:
1. The drawings of the embodiments of the present disclosure relate only to the structures related to the embodiments of the present disclosure, and reference may be made to the general design for other structures.
2. The embodiments of the present disclosure and features in the embodiments may be combined with each other to arrive at a new embodiment without conflict.
The foregoing is merely a specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it should be covered in the protection scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (10)

1. A raw material delivery level measurement device for producing propylene carbonate, comprising: a reaction kettle (1); two first communicating tube heads (103) are arranged at the upper part and the lower part of the left side of the reaction kettle (1), and the left ends of the two first communicating tube heads (103) are connected with a stainless steel shell (2); the stainless steel lifting device is characterized in that a supporting housing (3) is arranged on the left end face of the stainless steel housing (2), four guide rods (302) are fixedly connected inside the supporting housing (3), and a passive lifting block (5) is slidably connected inside the supporting housing (3) through the four guide rods (302); an adjustable pressing mechanism (4) is arranged at the upper part of the supporting shell cover (3), and a limiting component (7) is arranged on the adjustable pressing mechanism (4); the top of the reaction kettle (1) is connected with a feeding pipe fitting (101), and an electromagnetic valve (102) is arranged on the feeding pipe fitting (101).
2. The raw material feed liquid level measuring device for producing propylene carbonate according to claim 1, wherein: two second communicating tube heads (201) are arranged at the upper part and the lower part of the right side of the stainless steel shell (2), and the two second communicating tube heads (201) are respectively connected with the two first communicating tube heads (103); the controller (202) is installed on the front end face of the stainless steel shell (2), and the audible and visual annunciator (203) is installed on the top of the stainless steel shell (2).
3. The raw material feed liquid level measuring device for producing propylene carbonate according to claim 1, wherein: four vertical guide rods (204) are fixedly connected inside the stainless steel shell (2), and floating blocks (205) are slidably connected outside the four vertical guide rods (204) and inside the stainless steel shell (2); the left end face of the floating block (205) is provided with a notch, and a driving magnet (206) is fixedly arranged in the notch on the floating block (205).
4. The raw material feed liquid level measuring device for producing propylene carbonate according to claim 1, wherein: the front end face, the rear end face and the left end face of the supporting shell cover (3) are provided with strip-shaped through holes (301), and the front end face, the rear end face and the left end face of the supporting shell cover (3) are provided with liquid level scale marks.
5. The raw material feed liquid level measuring device for producing propylene carbonate according to claim 1, wherein: the adjustable pressing mechanism (4) comprises 匚 -shaped supporting plates (401), vertical sliding rods (402), sliding drums (403), sliding rods (404), racks (405) and pressing plates (406), the 匚 -shaped supporting plates (401) are fixedly installed at the upper ends of the supporting shells (3), four sliding drums (403) are fixedly connected to the upper end faces of the 匚 -shaped supporting plates (401), one sliding rod (404) is fixedly connected to the inside of each sliding drum (403), pressing plates (406) are fixedly connected to the lower ends of the four sliding rods (404), the upper end faces of the pressing plates (406) are fixedly connected with the vertical sliding rods (402), and racks (405) are fixedly installed on the rear end faces of the vertical sliding rods (402).
6. The raw material feed liquid level measuring apparatus for producing propylene carbonate according to claim 5, wherein: a rectangular notch (4011) is formed in the middle of the rear side of the top end face of the 匚 -shaped supporting plate (401), and two sliding blocks are arranged in the rectangular notch (4011); the left end face and the right end face of the vertical sliding rod (402) are respectively provided with a strip-shaped sliding groove (4021), the two strip-shaped sliding grooves (4021) are respectively connected with two sliding blocks inside the rectangular notch (4011) in a sliding mode, scale marks are uniformly arranged on the left side of the front end face of the vertical sliding rod (402), and limit insertion holes (4022) are uniformly formed in the right side of the front end face of the vertical sliding rod (402).
7. A raw material feed liquid level measuring apparatus for producing propylene carbonate according to claim 3, wherein: the right end face of the passive lifting block (5) is fixedly connected with a passive magnet (501), and the passive magnet (501) and the active magnet (206) are magnetically attracted; an indication arrow (502) is arranged on the front end face, the rear end face and the left end face of the passive lifting block (5), and a pressing switch (503) is arranged on the top of the passive lifting block (5).
8. The raw material feed liquid level measuring apparatus for producing propylene carbonate according to claim 6, wherein: the limiting assembly (7) comprises a limiting sliding shell (701), a limiting sliding block (702), a T-shaped pulling rod (703) and a limiting inserting rod (704), wherein the limiting sliding shell (701) is fixedly arranged on the front side of the top of the 匚 -shaped supporting plate (401), and the limiting sliding block (702) is connected inside the limiting sliding shell (701) in a sliding manner; the front end surface of the limiting sliding block (702) is fixedly connected with a T-shaped pulling rod (703) penetrating through the front side wall of the limiting sliding shell (701), and a spring is sleeved outside the T-shaped pulling rod (703) and inside the limiting sliding shell (701); the rear end face of the limiting sliding block (702) is provided with a limiting inserted rod (704) penetrating through the rear side wall of the limiting sliding shell (701).
9. The raw material feed liquid level measuring apparatus for producing propylene carbonate according to claim 8, wherein: when the limiting assembly (7) is in a limiting state, the limiting inserted rod (704) is inserted into one of the limiting jacks (4022).
10. The raw material feed liquid level measuring apparatus for producing propylene carbonate according to claim 5, wherein: the manual driving assembly (6) is arranged on the 匚 -shaped supporting plate (401), the manual driving assembly (6) comprises a driving shaft (601), a driven shaft (602) and a driving gear (603), the driving shaft (601) and the driven shaft (602) are rotationally connected to the 匚 -shaped supporting plate (401), a driving belt wheel is fixedly arranged at the rear end of the driving shaft (601), a driven belt wheel is fixedly arranged at the rear end of the driven shaft (602), and the driven belt wheel is in transmission connection with the driving belt wheel through a belt; a driving gear (603) is fixedly arranged at the front end of the driven shaft (602), and the driving gear (603) is meshed with the rack (405).
CN202410430576.5A 2024-04-11 2024-04-11 Raw material conveying liquid level measuring device for producing propylene carbonate Active CN118022650B (en)

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