Weighing calibration equipment

Abstract

The utility model relates to the technical field of reaction kettle weighing, and discloses weighing calibration equipment, which comprises a rack, a weighing module, a connecting unit and a reaction kettle, and a supporting assembly of the reaction kettle is provided with an elastic supporting piece and is connected with the rack through a supporting leg and a bearing leg. The first connecting piece of the connecting unit is connected with the force application assembly, and the force application surface is attached to the weighing module. When materials are fed, the elastic supporting piece is stressed to deform, the force application face is driven to move downwards, pressure is applied to the weighing module, and weight monitoring is achieved. According to the design, the weighing module can be overhauled without disassembling the reaction kettle and the pipeline, the maintenance convenience is improved, the cost is reduced, meanwhile, the weighing module is not stressed when being idle, the problems of viscous effect, creep deformation and aging are effectively avoided, the accuracy of long-term use is ensured, and the service life of the weighing module is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of reactor weighing, in particular to weighing calibration equipment. Background Art

[0002] In the field of chemical production, the reactor, as a core equipment, undertakes the chemical reaction process from raw material conversion to finished product output. Its role is crucial, covering multiple functions such as catalysis, mixing, distillation, and decompression reaction. During the reaction process, accurate monitoring of the quality changes of the materials in the reactor is the key to ensuring the control of the reaction process and product quality. To this end, technicians have designed a reactor weighing device. The reactor weighing device includes a weighing module, which is integrated into the supporting feet of the reactor to monitor the weight of the reactor in real time, so as to determine whether the reaction has reached the end point, that is, to confirm that the material in the reactor is no longer reduced, indicating the end of an operation or reaction.

[0003] However, this design has exposed obvious defects in actual maintenance. When the weighing module needs to be repaired or replaced, the entire reactor must be lifted to remove the weighing module because it is fixed on the support feet at the bottom of the reactor. This operation is not only time-consuming and labor-intensive, but more importantly, the reactor is usually connected to a variety of pipelines, including heating medium pipelines, feeding pipelines, exhaust pipelines, etc. The disassembly and reconnection of these pipelines are extremely cumbersome, which not only increases maintenance costs, but may also cause production delays, and even pipeline leakage or poor connection caused by frequent disassembly and assembly, posing a potential threat to production safety. Utility Model Content

[0004] The utility model aims to provide a weighing calibration device to improve the maintenance convenience of a weighing module and reduce maintenance costs.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: weighing and calibration equipment, including a frame, a weighing module and a connecting unit, the reactor includes a reactor body and a supporting assembly, the supporting assembly includes supporting feet and load-bearing feet, elastic support members are fixed between the supporting feet and the load-bearing feet, the supporting feet are fixed to the bottom of the reactor body, and the load-bearing feet are fixed to the frame, the connecting unit includes a first connecting member and a force-applying assembly, the first connecting member is fixedly connected to the supporting feet and the force-applying assembly respectively, the force-applying assembly includes a force-applying surface, and the force-applying surface is in contact with the weighing module.

[0006] The beneficial effects of this solution are as follows: 1. This solution adds an elastic support member to the reactor support assembly, and the reactor body is suspended on the load-bearing feet through the elastic support member. When materials are added into the reactor body, the gravity exerted on the elastic support member increases, deformation occurs, and the reactor body moves downward. The downward movement of the reactor body drives the first connecting member to move downward, and then drives the force-applying surface to move downward. The force-applying surface applies pressure to the weighing module to complete the weight monitoring of the material. When the weighing module needs to be repaired, there is no need to disassemble the reactor body and the various pipes connected to the reactor body. Only the connecting unit needs to be disassembled to complete the maintenance of the weighing module, which improves the convenience of maintenance and reduces the maintenance cost. 2. When the weighing module is not in use, it is in a stress-free state, which can avoid the viscosity effect, creep, aging and other problems caused by the weighing module being in a stress state for a long time. At the same time, through regular maintenance, potential problems can be discovered in time to ensure the accuracy of the weighing module.

[0007] Furthermore, the weighing module is a piezoelectric sensor, the force-applying assembly also includes a force-bearing member, and the piezoelectric sensor is pasted on the top surface of the force-bearing member.

[0008] Beneficial effects: 1. Compared with complex sensor systems, this direct-bonding design is usually simpler, reducing additional mechanical parts and connectors, reducing manufacturing costs and potential failure points, and improving the reliability and economic benefits of the entire system; 2. Allows piezoelectric sensors to directly sense pressure changes on the force-applying surface, thereby providing accurate force or weight measurements; 3. Piezoelectric sensors can respond quickly to changes in force due to their inherent characteristics. This design can maximize this advantage and achieve instant weight or force readings; 4. When the piezoelectric sensor needs to be replaced or maintained, this design simplifies the maintenance process and reduces downtime.

[0009] Furthermore, the force-applying assembly also includes a second connecting member, an adjusting member is fixedly arranged on the top surface of the force-applying surface, the top end of the adjusting member is fixedly connected to the second connecting member, and a third connecting member is fixedly arranged between the first connecting member and the second connecting member.

[0010] Beneficial effects: 1. The combination of the first connector, the second connector and the third connector can ensure smooth and accurate transmission of force. The third connector acts as a bridge, which can effectively guide the force from the first connector to the second connector, reducing the loss and deviation of force and improving the accuracy of force measurement; 2. The existence of the adjustment member allows the force application surface to be adjusted to a horizontal position, which can ensure the vertical transmission of force, avoid measurement errors caused by tilt, and improve the consistency and reliability of measurement; 3. This multi-connector design simplifies the installation process and provides more maintenance accesses. If a problem occurs in a certain part, it can be repaired or replaced in a targeted manner without disassembling the entire system, saving time and cost.

[0011] Furthermore, the elastic support member is a gas spring or a hydraulic spring.

[0012] Beneficial effects: 1. Gas springs and hydraulic springs can automatically adjust their supporting force according to changes in load, which means that they can automatically balance and stably support when objects of different weights are placed on the force-applying surface, ensuring that the force-applying surface remains horizontal, thereby improving the accuracy and consistency of force measurement; 2. The supporting force of gas springs and hydraulic springs can be adjusted by changing the gas pressure or liquid pressure therein. Users can adjust the supporting force of the support according to specific application requirements to adapt to different load requirements; 3. For large or heavy equipment, gas springs and hydraulic springs can provide a load-bearing capacity far higher than that of ordinary springs, ensuring stable and safe operation under high load conditions.

[0013] Furthermore, the force-bearing member is slidably arranged on the frame, and the force-bearing member is parallel to the force-applying surface.

[0014] Beneficial effects: By sliding the force-bearing member on the frame, the position of the force-bearing member can be accurately adjusted, and force can be measured at different heights, thereby increasing the flexibility and applicability of the system.

[0015] Furthermore, it also includes a screw lifting mechanism, which includes a screw, which is rotatably arranged on the force-bearing member and is threadedly connected to the frame.

[0016] Beneficial effects: 1. The screw lifting mechanism can provide very precise vertical motion control. By rotating the screw, the load-bearing part can achieve micron-level height adjustment; 2. The screw lifting mechanism has a self-locking feature. Once adjusted into place, the position of the load-bearing part can be kept unchanged even in the absence of power input, avoiding measurement errors caused by accidental movement.

[0017] Furthermore, it also includes a weighing and calibration system, which includes a controller, a display module and an operation module. The weighing module, the screw lifting mechanism, the display module and the operation module are all electrically connected to the controller, and the controller has a built-in correction module for calibrating the weighing module.

[0018] Beneficial effects: 1. The controller integrates the weighing module, screw lifting mechanism, display module and operation module to achieve intelligent management of the system. Users can intuitively control and adjust the equipment through the operation module, and the measurement data is displayed in real time on the display module, which improves the convenience and efficiency of operation; 2. The built-in correction module can calibrate the weighing module to ensure accurate measurement results under different conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the assembly state of the embodiment of the utility model and the reactor;

[0020] Figure 2It is a schematic diagram of an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the connection unit of the utility model;

[0022] Figure 4 This is a connection diagram of the weighing and calibration system of Example 2 of the utility model. DETAILED DESCRIPTION

[0023] The following is further described in detail through specific implementation methods:

[0024] The figure marks in the drawings of the specification include: kettle body 11, discharge port 111, supporting foot 121, connecting part 1211, load-bearing foot 122, elastic support member 21, first connecting member 221, second connecting member 222, third connecting member 223, force application surface 23, adjusting member 231, screw motor 24, force-bearing member 25, screw 26, weighing module 3.

[0025] Example 1

[0026] Embodiment 1 is basically as attached Figure 1-2 As shown, Figure 1-2 The weighing and calibration equipment shown includes a frame, a reactor, a weighing module, an elastic support member 21, a connecting unit and a screw lifting mechanism. The reactor includes a reactor body 11 and a supporting assembly. The reactor body 11 includes an inner tank and a discharge port 111. The supporting assembly includes a supporting foot 121 and a load-bearing foot 122. The upper end of the supporting foot 121 is welded to the inner tank, and a connecting portion 1211 is welded to the lower end of the supporting foot 121. The load-bearing foot 122 is welded to the frame. The elastic support member 21 is a gas spring or a hydraulic spring, preferably a hydraulic spring. The elastic support member 21 is fixed between the load-bearing foot 122 and the support foot 121 by bolts, so that when the reactor body 11 contains materials, the elastic support member 21 can be deformed.

[0027] The weighing module includes a weighing module 3 and a force-applying component. The weighing module 3 is a piezoelectric sensor. The force-applying component includes a force-applying member and a force-receiving member 25. Figure 3 As shown, the force applying member includes a force applying surface 23 and three sets of adjusting members 231. The adjusting member 231 includes an adjusting rod and two nuts. The adjusting rod is fixed on the force applying surface 23 by the nuts. Figure 2 As shown, the weighing module 3 is bonded to the top surface of the force bearing member 25 .

[0028] like Figure 3As shown, the connecting unit includes a first connecting member 221, a second connecting member 222 and a third connecting member 223. The first connecting member 221 is bolted to the connecting portion 1211 and avoids the discharge port 111. The second connecting member 222 is bolted to the upper end of the adjusting rod. The third connecting member 223 connects the first connecting member 221 and the second connecting member 222 by bolts, so that the force-applying surface 23 is rigidly fixed on the supporting foot 121. When material is put into the reactor, the elastic support member 21 is deformed and moves downward, driving the force-applying surface 23 to move downward.

[0029] The screw lifting mechanism includes a screw motor 24 and a screw 26. The screw motor 24 is slidably arranged on the frame. The screw motor 24 is a forward and reversible motor, preferably a servo motor. The upper end of the screw 26 is rotatably connected to the force-bearing surface, the middle section of the screw 26 is threadedly connected to the frame, and the lower end of the screw 26 is fixedly connected to the output shaft of the screw motor 24 through a coupling. The forward and reverse rotation of the screw motor 24 drives the force-bearing surface to move up and down, so that the upper surface of the weighing module 3 is in contact with the lower surface of the force-applying surface 23. When the force-applying surface 23 moves downward, pressure is applied to the weighing module 3; the weighing module 3 generates a piezoelectric effect under pressure, and the weighing of the material in the reactor is completed with the help of the piezoelectric effect.

[0030] Example 2

[0031] On the basis of Example 1, Example 2 further includes a weighing and calibration system, which includes a controller, a display module and an operation module, and the controller is a programmable logic controller (PLC), such as Figure 4 As shown, the weighing module 3 , the lead screw motor 24 , the display module and the operation module are all electrically connected to the controller, and the controller has a built-in correction module for correcting the weighing module 3 .

[0032] Taking the calibration of a 1000L reactor as an example, the operator sends a command to start the calibration module to the controller through the operation module. The calibration steps are as follows:

[0033] Preparation: First, clean and dry the reactor, and turn on the jacket condensation water so that the jacket is filled with condensation water; second, the controller controls the screw motor 24 to rotate in the opposite direction, so that the force-bearing surface moves downward, so that the top surface of the weighing module 3 is separated from the force-applying surface 23, and then the screw motor 24 slowly rotates forward until the weighing module 3 produces a piezoelectric effect, the piezoelectric effect generates a voltage, stops the rotation of the screw motor 24, and the voltage is input into the controller, the controller records the voltage, and corresponds the voltage to 0KG;

[0034] Calibration: 1.100KG calibration: The controller controls the display module to display 100KG subtitles, and the operator puts 100KG of water into the reactor. The controller records the voltage change during the putting process. After 100KG of water is put in, the operator sends a completion signal to the controller through the operation module. The controller records the voltage at this time and corresponds the voltage to 100KG; 2.200KG calibration: The controller controls the display module to display 200KG subtitles, and the operator puts 100KG of water into the reactor again. The controller records the voltage change during the putting process. After 100KG of water is put in, the operator sends a completion signal to the controller through the operation module. The controller records the voltage at this time and corresponds the voltage to 200KG; 3. Repeat the above process until the 1000KG calibration is completed; 4. After the calibration is completed, the display module displays the weight-voltage scatter plot and linear regression curve. The operator confirms whether the scatter points fall on the linear regression curve and decides whether to end the calibration.

[0035] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that the technical means for solving the problems in the above-mentioned embodiments of the utility model can be used in combination to solve multiple technical problems at the same time. For those skilled in the art, several deformations and improvements can be made without departing from the technical solution of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Weighing and calibration equipment, characterized in that: It includes a frame, a weighing module and a connecting unit. The reactor includes a reactor body and a supporting assembly. The supporting assembly includes supporting feet and load-bearing feet. Elastic supporting parts are fixed between the supporting feet and the load-bearing feet. The supporting feet are fixed to the bottom of the reactor body. The load-bearing feet are fixed to the frame. The connecting unit includes a first connecting part and a force-applying assembly. The first connecting part is fixedly connected to the supporting feet and the force-applying assembly respectively. The force-applying assembly includes a force-applying surface. The force-applying surface is in contact with the weighing module.

2. The weighing and calibration device according to claim 1, characterized in that: The weighing module is a piezoelectric sensor, the force-applying component also includes a force-bearing piece, and the piezoelectric sensor is pasted on the top surface of the force-bearing piece.

3. The weighing and calibration device according to claim 2, characterized in that: The force-applying component also includes a second connecting member, an adjusting member is fixedly arranged on the top surface of the force-applying surface, the top end of the adjusting member is fixedly connected to the second connecting member, and a third connecting member is fixedly arranged between the first connecting member and the second connecting member.

4. The weighing and calibration device according to claim 3, characterized in that: The elastic support member is a gas spring or a hydraulic spring.

5. The weighing and calibration device according to claim 4, characterized in that: The force-bearing member is slidably arranged on the frame, and the force-bearing member is parallel to the force-applying surface.

6. The weighing and calibration device according to claim 5, characterized in that: It also includes a screw lifting mechanism, which includes a screw, which is rotatably arranged on the force-bearing member and is threadedly connected to the frame.

7. The weighing and calibration device according to claim 6, characterized in that: It also includes a weighing and calibration system, which includes a controller, a display module and an operation module. The weighing module, the screw lifting mechanism, the display module and the operation module are all electrically connected to the controller, and the controller has a built-in correction module for calibrating the weighing module.

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