Device for calculating fluorine loss in anhydrous hydrogen fluoride produced by industrial fluorite method
By designing a conical delivery pipeline and a separation barrel structure during the hydrogen fluoride production process, the detection error problem caused by the flow meter's vibration under high pressure was solved, and the stability and accuracy of the flow meter were achieved.
Patent Information
- Application Number
- CN202422633908.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-30
AI Technical Summary
In the prior art hydrogen fluoride production process, the flow meter is prone to vibration under high pressure, resulting in poor detection accuracy, which affects the accuracy of fluorine loss calculation.
A device including a delivery pipeline and auxiliary components is designed. The pressure of hydrogen fluoride delivery is reduced by cooperating with a conical structure and a separator barrel. The rotation of the separator barrel is controlled by a pressure sensor and a connecting rod system, and the angle of the through groove is adjusted to reduce reverse flow resistance and reduce the impact on the flow meter.
The stability and detection accuracy of the flow meter are improved, the accuracy of pressure detection during the hydrogen fluoride transportation process is ensured, and the impact on the flow meter is reduced.
Smart Images
Figure CN223426023U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydrogen fluoride production, in particular to a device for calculating fluorine loss in the production of anhydrous hydrogen fluoride using an industrial fluorite process. Background Art
[0002] The industrial fluorspar process for producing anhydrous hydrogen fluoride is a mature technology, primarily utilizing the reaction of fluorspar with sulfuric acid. This process is a crucial chemical process, primarily used to produce anhydrous hydrogen fluoride, a fundamental raw material widely used in the chemical, petroleum, pharmaceutical, agricultural, electronics, and atomic energy industries.
[0003] However, in the current existing technology, the actual output needs to be measured when calculating the fluorine loss ratio during hydrogen fluoride production. During operation, the actual hydrogen fluoride output is generally detected by a flow meter. However, when the pressure during the hydrogen fluoride transportation process is too high, the flow meter will vibrate, resulting in errors in the flow meter detection, affecting the accuracy of the detection. Utility Model Content
[0004] The purpose of the utility model is to provide a device for calculating fluorine loss in the production of anhydrous hydrogen fluoride by the industrial fluorite process, so as to solve the problems raised in the above background technology.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] A device for calculating fluorine loss in the production of anhydrous hydrogen fluoride by the industrial fluorite process comprises a flow meter, a delivery pipe is provided on the outside of the flow meter, an auxiliary component for reducing the delivery pressure is provided inside the delivery pipe of the air inlet, the auxiliary component comprises a cavity provided inside the delivery pipe, a partition barrel is provided inside the cavity, two through grooves are provided inside the partition barrel, guide grooves are provided inside the two through grooves, a hole groove is provided on the inner wall of the delivery pipe, an air chamber is provided on the inner wall of the hole groove, a pressure sensor is provided inside the air chamber, a top plate is provided inside the hole groove, and a connecting rod is provided at one end of the top plate.
[0007] As a preferred solution of the present invention, the delivery pipe is connected to the flow meter, and the delivery pipe has a conical structure at one end close to the air inlet of the flow meter, and the conical direction is toward the end close to the flow meter. The conical structure makes the diameter of the delivery pipe inclined and shortened.
[0008] As a preferred solution of the present invention, the separation barrel is distributed throughout the cavity and the channel of the delivery pipeline. The separation barrel is rotatably connected to the inner wall of the cavity through a drive shaft. The separation barrel fills and isolates the channel of the delivery pipeline.
[0009] As a preferred solution of the present invention, the two through grooves are distributed in an annular manner on both sides of the separating barrel. The two through grooves rotate in the cavity through the separating barrel and extend alternately into the channel of the conveying pipe. The guide grooves in the two through grooves are composed of the main channel, the turning channel and the partition, and the guide grooves in the two through grooves are distributed in opposite directions at different angles.
[0010] As a preferred solution of the present invention, the hole groove is located at the front end of the separation barrel, one end of the top plate is located in the hole groove and is slidingly connected to the inner wall of the hole groove, and the other end is pushed out of the hole groove by a spring to abut the material in the conveying pipe.
[0011] As a preferred solution of the present invention, one end of the connecting rod is located in the hole groove and connected to the top plate, and the other end extends into the gas bin and is slidingly connected to the inner wall of the gas bin. The gas bin is loaded with high-pressure gas, and the pressure sensor is electrically connected to the drive shaft of the separation barrel.
[0012] Compared with the prior art, the beneficial effects of the present invention are: in response to the problems raised in the background technology, the present application adopts an auxiliary component, by changing the conveying pipe at the front end of the flow meter into a conical structure, the diameter becomes narrower when approaching the flow meter, so that hydrogen fluoride can contact and squeeze the top plate, thereby causing the top plate to shrink to assist in pressure detection in the conveying pipe, and when the pressure exceeds the set value, the partition barrel is controlled to rotate so that the through groove on the other side of the partition barrel is switched to the channel for use. Since the angles in the through grooves in the partition are opposite, the material can pass smoothly when conveyed in the forward direction, and the reverse flow resistance at the turning point slows down the conveying pressure of the material when conveyed at a reverse angle, thereby reducing the pressure when the material reaches the flow meter, reducing the impact on the flow meter, improving the stability of the flow meter, and ensuring the accuracy of the detection.
[0013] The utility model realizes pressure detection of hydrogen fluoride delivery, and reduces the material delivery pressure through the structure in the delivery channel when the pressure is relatively high, thereby reducing the influence of the delivery pressure on the flow meter and ensuring the stability and accuracy of the flow meter. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is the appearance structure diagram of the flow meter of this utility model.
[0015] Figure 2 This is an internal cross-sectional view of the delivery pipeline of the present invention.
[0016] Figure 3 This is a cross-sectional view of the partition barrel of the utility model.
[0017] Figure 4 This is a method diagram of Part A of the utility model.
[0018] In the figure: 1. flow meter; 2. delivery pipe; 3. cavity; 4. separation barrel; 5. through groove; 501. guide groove; 6. hole groove; 7. air chamber; 701. pressure sensor; 8. top plate; 801. connecting rod. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention. Example
[0020] See also Figure 1-4 The utility model provides a technical solution: a device for calculating fluorine loss in the production of anhydrous hydrogen fluoride by the industrial fluorite process, comprising a flow meter 1, a delivery pipe 2 being arranged outside the flow meter 1, the flow meter 1 being a volumetric flow meter for delivering gas for the production of hydrogen fluoride, and performing metering detection through the flow meter 1, an auxiliary component for slowing down the delivery pressure being arranged inside the delivery pipe 2 at the air inlet, the auxiliary component comprising a cavity 3 arranged inside the delivery pipe 2, for accommodating a part of the area of the separation barrel 4, thereby partially hiding the separation barrel 4, so that the separation barrel 4 has only one through groove 5 distributed in the channel of the delivery pipe 2, a separation barrel 4 being arranged inside the cavity 3, two through grooves 5 being arranged inside the separation barrel 4, both of the through grooves 5 being provided with a guide groove 501, the two through grooves 5 in the separation barrel 4 being switched to the channel of the delivery pipe 2 for gas delivery by the rotation of the separation barrel 4. In use, since the guide grooves 501 in the two through grooves 5 have opposite angles, the main channel (the part through which the fluid mainly passes when flowing in the forward direction), the turning channel (connected to the main pipeline, used to change the flow direction of the fluid) and the separation island (a structure in the turning channel, used to further guide the fluid and increase the reverse flow resistance) inside the guide groove 501, when the fluid flows in the forward direction, the fluid can pass through the guide groove 501 smoothly due to the channel structure. Conversely, when the fluid flows in the reverse direction, the fluid will generate reverse flow and fluid impact with the main channel through the turning channel and the separation island, and it will encounter greater resistance because the fluid must overcome the additional pressure loss caused by the turning channel and the separation island. Therefore, when the hydrogen fluoride in the delivery pipeline 2 approaches the flowmeter 1, the through groove 5 of the reverse guide groove 501 is rotated into the channel of the delivery pipeline 2 to further reduce the pressure of the hydrogen fluoride, thereby reducing the impact on the flowmeter 1 and ensuring the stability of the flowmeter 1;
[0021] The inner wall of the conveying pipeline 2 is provided with a hole groove 6 for positioning the top plate 8. The inner wall of the hole groove 6 is provided with an air chamber 7. The high-pressure gas in the air chamber 7 can support the connecting rod 801 and the top plate 8 and push them outward. A pressure sensor 701 is provided inside the air chamber 7. The pressure sensor 701 can detect the pressure in the air chamber 7. A top plate 8 is provided inside the hole groove 6. A connecting rod 801 is provided at one end of the top plate 8. When hydrogen fluoride is conveyed in the conveying pipeline 2, hydrogen fluoride impacts and squeezes the top plate 8 at the tapered part of the conveying channel to cause it to shrink. When the top plate 8 shrinks, it shrinks in the air chamber 7 through the connecting rod 801, thereby increasing the pressure in the air chamber 7. When the pressure is greater than the set value, it means that the conveying pressure of hydrogen fluoride is too high and the PLC controller is used to control the rotation of the separation barrel 4 to reduce the pressure of hydrogen fluoride.
[0022] Calculation of the ratio of fluorine loss: (theoretical yield and actual yield are within the theoretical yield) and multiply by 100%.
[0023] In this embodiment, all electrical components are controlled by conventional controllers.
[0024] For example, please refer to Figure 1-4The utility model discloses a hydrogen fluoride conveying device, which comprises a cavity 3, a conveying pipeline 2, a partition barrel 4, two through grooves 5, a hole groove 6, a top plate 8 and a gas warehouse 7, wherein the conveying pipeline 2 is communicated with the flowmeter 1, the conveying pipeline 2 is tapered at the end close to the air inlet of the flowmeter 1, and the tapered direction is towards the end close to the flowmeter 1; the diameter of the conveying pipeline 2 is inclined and shortened through the tapered structure; the partition barrel 4 is distributed in the channel of the cavity 3 and the conveying pipeline 2; the partition barrel 4 is rotatably connected to the inner wall of the cavity 3 through a driving shaft; the partition barrel 4 fills and insulates the channel of the conveying pipeline 2; the two through grooves 5 are annularly distributed on the two side regions of the partition barrel 4; the two through grooves 5 rotate in the cavity 3 through the partition barrel 4 and extend into the channel of the conveying pipeline 2 in a staggered manner; the guide grooves 501 in the two through grooves 5 are each composed of a main channel, a turning channel and a partition; the guide grooves 501 in the two through grooves 5 are oppositely distributed in terms of angle direction; the hole groove 6 is located at the front end of the partition barrel 4; one end of the top plate 8 is located in the hole groove 6 and is slidably connected to the inner wall of the hole groove 6; the other end of the top plate 8 is pushed out of the hole groove 6 by a spring and abuts against the material in the conveying pipeline 2; one end of the connecting rod 801 is located in the hole groove 6 and is connected to the top plate 8; the other end of the connecting rod 801 extends into the gas warehouse 7 and is slidably connected to the inner wall of the gas warehouse 7; the gas warehouse 7 is filled with high-pressure gas; and the pressure sensor 701 is electrically connected to the driving shaft of the partition barrel 4.
[0025] The utility model discloses a hydrogen fluoride conveying device, which comprises a cavity 3, a conveying pipeline 2, a partition barrel 4, two through grooves 5, a hole groove 6, a top plate 8 and a gas warehouse 7, wherein the conveying pipeline 2 is communicated with the flowmeter 1, the conveying pipeline 2 is tapered at the end close to the air inlet of the flowmeter 1, and the tapered direction is towards the end close to the flowmeter 1; the diameter of the conveying pipeline 2 is inclined and shortened through the tapered structure; the partition barrel 4 is distributed in the channel of the cavity 3 and the conveying pipeline 2; the partition barrel 4 is rotatably connected to the inner wall of the cavity 3 through a driving shaft; the partition barrel 4 fills and insulates the channel of the conveying pipeline 2; the two through grooves 5 are annularly distributed on the two side regions of the partition barrel 4; the two through grooves 5 rotate in the cavity 3 through the partition barrel 4 and extend into the channel of the conveying pipeline 2 in a staggered manner; the guide grooves 501 in the two through grooves 5 are each composed of a main channel, a turning channel and a partition; the guide grooves 501 in the two through grooves 5 are oppositely distributed in terms of angle direction; the hole groove 6 is located at the front end of the partition barrel 4; one end of the top plate 8 is located in the hole groove 6 and is slidably connected to the inner wall of the hole groove 6; the other end of the top plate 8 is pushed out of the hole groove 6 by a spring and abuts against the material in the conveying pipeline 2; one end of the connecting rod 801 is located in the hole groove 6 and is connected to the top plate 8; the other end of the connecting rod 801 extends into the gas warehouse 7 and is slidably connected to the inner wall of the gas warehouse 7; the gas warehouse 7 is filled with high-pressure gas; and the pressure sensor 701 is electrically connected to the driving shaft of the partition barrel 4.
[0026] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for calculating fluorine loss in the production of anhydrous hydrogen fluoride by the industrial fluorite process, comprising a flow meter (1), a delivery pipe (2) being provided on the outside of the flow meter (1), and an auxiliary component for reducing the delivery pressure being provided on the inside of the delivery pipe (2) at the air inlet, characterized in that: The auxiliary component comprises a cavity (3) arranged inside the conveying pipe (2), a partition barrel (4) arranged inside the cavity (3), two through slots (5) arranged inside the partition barrel (4), guide slots (501) arranged inside the two through slots (5), a hole slot (6) arranged on the inner wall of the conveying pipe (2), an air chamber (7) arranged on the inner wall of the hole slot (6), a pressure sensor (701) arranged inside the air chamber (7), a top plate (8) arranged inside the hole slot (6), and a connecting rod (801) arranged at one end of the top plate (8).
2. The device for calculating fluorine loss in the production of anhydrous hydrogen fluoride by the industrial fluorite process according to claim 1, characterized in that: The delivery pipe (2) is in communication with the flow meter (1), and the delivery pipe (2) has a conical structure at one end close to the air inlet of the flow meter (1), and the conical direction is toward the end close to the flow meter (1), so that the diameter of the delivery pipe (2) is inclined and shortened by the conical structure.
3. The device for calculating fluorine loss in the production of anhydrous hydrogen fluoride by the industrial fluorite process according to claim 1, characterized in that: The separation barrel (4) is distributed throughout the cavity (3) and the channel of the delivery pipe (2). The separation barrel (4) is rotatably connected to the inner wall of the cavity (3) via a drive shaft. The separation barrel (4) fills and isolates the channel of the delivery pipe (2).
4. The device for calculating fluorine loss in the production of anhydrous hydrogen fluoride by the industrial fluorite process according to claim 1, characterized in that: The two through grooves (5) are distributed in an annular manner on both sides of the separation barrel (4). The two through grooves (5) rotate in the cavity (3) through the separation barrel (4) and extend in an interlaced manner into the channel of the conveying pipe (2). The guide grooves (501) in the two through grooves (5) are both main channels, turning channels and separation components, and the guide grooves (501) in the two through grooves (5) are distributed in opposite directions.
5. The device for calculating fluorine loss in the production of anhydrous hydrogen fluoride by the industrial fluorite process according to claim 1, characterized in that: The hole groove (6) is located at the front end of the separation barrel (4), one end of the top plate (8) is located in the hole groove (6) and is slidably connected to the inner wall of the hole groove (6), and the other end is pushed out of the hole groove (6) by a spring to abut against the material in the conveying pipe (2).
6. The device for calculating fluorine loss in the production of anhydrous hydrogen fluoride by the industrial fluorite process according to claim 1, characterized in that: One end of the connecting rod (801) is located in the hole groove (6) and is connected to the top plate (8), and the other end extends into the gas chamber (7) and is slidably connected to the inner wall of the gas chamber (7). The gas chamber (7) is loaded with high-pressure gas, and the pressure sensor (701) is electrically connected to the drive shaft of the separation barrel (4).