Flowmeter for monitoring chemical pipeline

Abstract

The utility model discloses a flowmeter for monitoring a chemical pipeline, which relates to the technical field of flowmeters and comprises an electromagnetic flowmeter and a pre-limiting component, the electromagnetic flowmeter consists of a flowmeter main body and a connecting flange, and the pre-limiting component is used for realizing preliminary butt joint limiting of the connecting flange and a pipeline flange. By arranging the pre-limiting assembly, pre-butt-joint limiting of the connecting flange and the pipeline flange can be achieved, when a bolt is installed, only one hand is needed to slightly support the electromagnetic flowmeter, the direction of the electromagnetic flowmeter can be adjusted and rotated, and therefore an installation hole of the connecting flange is aligned with an installation hole of the pipeline flange, and the installation efficiency is improved. When the electromagnetic flowmeter is installed, one bolt can conduct bolt perforating operation, the other bolt can conduct bolt perforating operation, the electromagnetic flowmeter can be loosened after perforating of one bolt is completed, in this way, an operator can conduct other bolt perforating and fastening operation with two hands, the operation mode is easier, the installation efficiency is higher, and efficient single-person installation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, in particular to a flow meter used for chemical pipeline monitoring. Background Art

[0002] A flow meter is an instrument used to measure the flow of fluid in a pipeline or open channel. The electromagnetic flow meter is one of the commonly used flow meters in chemical pipelines. Its working principle is: when a conductive fluid flows through an electromagnetic field, the fluid velocity can be obtained by measuring the voltage. The electromagnetic flow meter has no moving parts and is not affected by the fluid. When the pipe is full, it can measure the conductive liquid with high accuracy.

[0003] In the prior art, electromagnetic flowmeters are mostly installed using a flange connection structure, which makes the overall installation operation convenient. However, when performing horizontal installation, one person is required to maintain the horizontal balance of the electromagnetic flowmeter, and then another person is required to install the bolts. If one person operates, the balance state of the electromagnetic flowmeter cannot be well guaranteed, and the installation operation is relatively inconvenient. Based on this, in order to achieve single-person efficient installation operation of the electromagnetic flowmeter, a flowmeter for chemical pipeline monitoring is provided. Utility Model Content

[0004] The purpose of the utility model is to provide a flow meter for chemical pipeline monitoring in order to achieve the purpose of single-person efficient installation and operation of the electromagnetic flow meter.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a flowmeter for chemical pipeline monitoring, comprising an electromagnetic flowmeter consisting of a flowmeter body and a connecting flange, wherein the connecting flanges are symmetrically fixed to both ends of a measuring pipeline of the flowmeter body, and a pre-limiting assembly is provided at one end of the connecting flange away from the flowmeter body, wherein the pre-limiting assembly is used to achieve preliminary docking and limiting of the connecting flange and the pipeline flange;

[0006] The pre-limiting assembly includes a fixed arc plate, an arc-shaped rail groove, an arc-shaped limiting piece, a limiting slider, a fixed connecting block, and an arc-shaped handle;

[0007] The fixed arc plate is fixed to the end of the connecting flange away from the flow meter body and is distributed at the upper part of the connecting flange;

[0008] There are two arc-shaped rail grooves, which are evenly distributed horizontally on the inner side of the fixed arc plate and penetrate to the outer side of the fixed arc plate and the bottom of one end of the fixed arc plate. A limiting arc groove is provided inside the fixed arc plate and is connected to the two arc-shaped rail grooves.

[0009] The arc-shaped limiting piece is received in the inner side of the arc-shaped rail groove, the limiting slider is slidably connected to the inner side of the limiting arc groove and is fixedly connected to the two arc-shaped limiting pieces, one end of the two arc-shaped limiting pieces extends through the arc-shaped rail groove to the bottom of the fixed arc plate and is fixedly connected to the fixed connecting block, and the arc-shaped handle is fixed to the outer side of one arc-shaped limiting piece;

[0010] The fixed arc plate is overlapped on the outer top of the pipe flange, and the arc-shaped limiting piece is moved out of the arc groove and combined with the fixed arc plate to form a "C"-shaped structure to achieve the limiting wrapping of the pipe flange, thereby realizing the initial docking and limiting of the connecting flange and the pipe flange.

[0011] As a further solution of the present invention: the pre-limiting assembly further includes an arc-shaped opening, a threaded hole, and a locking bolt;

[0012] The arc-shaped opening is opened in the middle of the outer side of the fixed arc plate and is connected to the limiting arc groove. The threaded hole is opened inside the limiting slider and passes through the inner and outer sides of the limiting slider. The screw rod of the locking bolt passes through the arc-shaped opening and is threadedly connected to the threaded hole. The end of the screw rod of the locking bolt is tightly fitted with the inner ring side of the limiting arc groove, and the knob part is tightly fitted with the outer side of the fixed arc plate, so as to realize the position locking of the arc-shaped limiting plate.

[0013] As a further solution of the present invention: the inner diameters of the fixed arc plate and the arc-shaped limiting piece are the same and match the outer diameter of the pipe flange, and the arc angle of the "C"-shaped structure composed of the arc-shaped limiting piece and the fixed arc plate is greater than 270 degrees.

[0014] As a further solution of the present invention: the horizontal width of the arc-shaped limiting piece matches the horizontal width of the inner wall of the arc-shaped rail groove and is smaller than the horizontal width of the pipeline flange.

[0015] As a further solution of the present invention: the distribution spacing of the two arc-shaped limiting pieces is smaller than the horizontal width of the pipeline flange.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] By setting the pre-limit component, the pre-docking limit of the connecting flange and the pipe flange can be achieved. When installing the bolts, only one hand is needed to slightly support the electromagnetic flowmeter, and the position of the electromagnetic flowmeter can be adjusted and rotated to align the mounting holes of the connecting flange with the mounting holes of the pipe flange. The other hand can be used to perform the bolt piercing operation. After completing one bolt piercing, the support for the electromagnetic flowmeter can be released. In this way, the operator can perform other bolt piercing and tightening operations with both hands. This operation method is easier and the installation efficiency is faster, realizing single-person efficient installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a structural diagram of the utility model;

[0019] Figure 2 This is a structural diagram of the arc-shaped limiting piece of the utility model in an expanded state;

[0020] Figure 3 This is a schematic diagram of the disassembly of the pre-limiting component of the utility model;

[0021] Figure 4 This is a cross-sectional view of some parts of the pre-limiting component of the utility model.

[0022] In the figure: 1. Electromagnetic flowmeter; 101. Flowmeter body; 102. Connecting flange; 2. Pre-limiting assembly; 201. Fixed arc plate; 202. Arc-shaped rail groove; 203. Limiting arc groove; 204. Arc-shaped opening; 205. Arc-shaped limiting plate; 206. Limiting slider; 207. Fixed connecting block; 208. Arc-shaped handle; 209. Threaded hole; 210. Locking bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 4 In an embodiment of the present invention, a flow meter for chemical pipeline monitoring includes an electromagnetic flow meter 1 consisting of a flow meter body 101 and a connecting flange 102. The connecting flanges 102 are symmetrically fixed to both ends of a measuring pipeline of the flow meter body 101. A pre-limiting component 2 is provided at one end of the connecting flange 102 away from the flow meter body 101. The pre-limiting component 2 is used to achieve preliminary docking and limiting between the connecting flange 102 and the pipeline flange.

[0025] The pre-limiting assembly 2 includes a fixed arc plate 201, an arc-shaped rail groove 202, an arc-shaped limiting piece 205, a limiting slider 206, a fixed connecting block 207, and an arc-shaped handle 208;

[0026] The fixed arc plate 201 is fixed to one end of the connecting flange 102 away from the flow meter body 101 and is distributed at the upper part of the connecting flange 102;

[0027] There are two arc-shaped rail grooves 202, which are evenly distributed horizontally on the inner side of the fixed arc plate 201 and penetrate to the outer side of the fixed arc plate 201 and the bottom of one end of the fixed arc plate 201. A limiting arc groove 203 is provided inside the fixed arc plate 201 and is conductive with the two arc-shaped rail grooves 202;

[0028] The arc-shaped limiting piece 205 is accommodated in the inner side of the arc-shaped rail groove 202, the limiting slider 206 is slidably connected to the inner side of the limiting arc groove 203 and fixedly connected to the two arc-shaped limiting pieces 205, one end of the two arc-shaped limiting pieces 205 extends through the arc-shaped rail groove 202 to the bottom of the fixed arc plate 201 and is fixedly connected to the fixed connecting block 207, and the arc-shaped handle 208 is fixed to the outer side of one of the arc-shaped limiting pieces 205;

[0029] The fixed arc plate 201 is overlapped on the outer top of the pipe flange, and the arc-shaped limiting piece 205 is moved out of the arc track groove 202 and combined with the fixed arc plate 201 to form a "C"-shaped structure to achieve the limiting wrapping of the pipe flange, thereby achieving the initial docking and limiting of the connecting flange 102 and the pipe flange;

[0030] The pre-limiting assembly 2 further includes an arc-shaped opening 204, a threaded hole 209, and a locking bolt 210;

[0031] The arc-shaped opening 204 is opened in the middle of the outer side of the fixed arc plate 201 and is connected to the limiting arc groove 203. The threaded hole 209 is opened inside the limiting slider 206 and passes through the inner and outer sides of the limiting slider 206. The screw portion of the locking bolt 210 passes through the arc-shaped opening 204 and is threadedly connected to the threaded hole 209. The end of the screw portion of the locking bolt 210 is tightly fitted with the inner ring side of the limiting arc groove 203, and the knob portion is tightly fitted with the outer side of the fixed arc plate 201, which is used to realize the position locking of the arc-shaped limiting plate 205.

[0032] In this embodiment, when the electromagnetic flowmeter 1 is installed horizontally, the operating steps are as follows:

[0033] First, the arc-shaped limiting piece 205 is completely retracted into the inner side of the arc-shaped rail groove 202, and then the electromagnetic flowmeter 1 can be transferred as a whole to the two pipes, and the two fixed arc plates 201 on the two connecting flanges 102 are respectively overlapped on the two pipe flanges on the two pipes. Then, one hand holds the electromagnetic flowmeter 1, and the other hand pulls the arc-shaped limiting piece 205 through the arc-shaped handle 208 to move it out of the arc-shaped rail groove 202. Finally, the arc-shaped limiting piece 205 and the fixed arc plate 201 form a "C"-shaped structure to achieve a large-area wrapping of the pipe flange. Then, the locking bolt 210 is tightened to fix the arc-shaped limiting piece 205 in this position (it should be noted that when the arc-shaped limiting piece 205 is pulled, the locking bolt 210 is loosened. When the arc-shaped limiting piece 205 moves, the locking bolt 210 is driven to move synchronously through the limiting slider 206);

[0034] Then, the same operation can be performed on the other set of pre-limit components 2. At this time, the pre-docking limit of the connecting flange 102 and the pipe flange is realized (it should be noted that there is a gap between the connecting flange 102 and the pipe flange at this time), and then the bolt installation operation can be performed. At this time, only one hand is needed to slightly support the electromagnetic flowmeter 1, and the orientation of the electromagnetic flowmeter 1 can be adjusted and rotated to align the mounting hole of the connecting flange 102 with the mounting hole of the pipe flange, and the other hand can perform the bolt drilling operation. After completing one bolt drilling, the support for the electromagnetic flowmeter 1 can be released. In this way, the operator can perform other bolt drilling and tightening operations with both hands. This operation method is easier and the installation efficiency is faster.

[0035] Please refer to Figures 1 to 4 The inner diameters of the fixed arc plate 201 and the arc-shaped limiting piece 205 are the same and match the outer diameter of the pipe flange. The arc angle of the "C"-shaped structure composed of the arc-shaped limiting piece 205 and the fixed arc plate 201 is greater than 270 degrees.

[0036] In this embodiment: this structure can ensure the relative positioning of the fixed arc plate 201, the arc-shaped limiting plate 205 and the pipe flange, so that the electromagnetic flowmeter 1 can be rotated and adjusted around the pipe flange, thereby realizing the rapid alignment operation of the mounting holes of the connecting flange and the pipe flange.

[0037] Please refer to Figures 1 to 4 , the horizontal width of the arc-shaped limiting piece 205 matches the horizontal width of the inner wall of the arc-shaped rail groove 202 and is smaller than the horizontal width of the pipeline flange;

[0038] The distribution interval between the two arc-shaped limiting pieces 205 is smaller than the horizontal width of the pipeline flange.

[0039] In this embodiment, it should be noted that the horizontal width of the fixed arc plate 202 is greater than the width of the pipeline flange, so as to adapt to the change in the distance between the connecting flange 102 and the pipeline flange.

[0040] In addition, through the distribution spacing of the arc-shaped limit plate 205 and the structure that the horizontal width of the arc-shaped limit plate 205 is smaller than the horizontal width of the pipe flange, when the bolts are tightened to press the pipe flange and the connecting flange 102 close to each other, the arc-shaped rail groove 202 and the arc-shaped limit plate 205 will not be stuck with the pipe flange.

[0041] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flow meter for chemical pipeline monitoring, comprising an electromagnetic flow meter (1) consisting of a flow meter body (101) and a connecting flange (102), wherein the connecting flange (102) is symmetrically fixed to both ends of the measuring pipeline of the flow meter body (101), characterized in that: A pre-limiting component (2) is provided at one end of the connecting flange (102) away from the flow meter body (101), and the pre-limiting component (2) is used to achieve preliminary docking and limiting of the connecting flange (102) and the pipeline flange; The pre-limiting assembly (2) comprises a fixed arc plate (201), an arc-shaped rail groove (202), an arc-shaped limiting piece (205), a limiting slider (206), a fixed connecting block (207), and an arc-shaped handle (208); The fixed arc plate (201) is fixed to one end of the connecting flange (102) away from the flow meter body (101) and is distributed at an upper position of the connecting flange (102); Two arc-shaped rail grooves (202) are provided, and the two arc-shaped rail grooves (202) are evenly distributed horizontally and opened on the inner side of the fixed arc plate (201) and penetrate to the outer side of the fixed arc plate (201) and the bottom of one end of the fixed arc plate (201); a limiting arc groove (203) is opened inside the fixed arc plate (201) and is conductive with the two arc-shaped rail grooves (202); The arc-shaped limiting piece (205) is accommodated in the inner side of the arc-shaped rail groove (202), the limiting slider (206) is slidably connected to the inner side of the limiting arc groove (203) and is fixedly connected to the two arc-shaped limiting pieces (205), one end of the two arc-shaped limiting pieces (205) extends through the arc-shaped rail groove (202) to the bottom of the fixed arc plate (201) and is fixedly connected to the fixed connecting block (207), and the arc-shaped handle (208) is fixed to the outer side of one arc-shaped limiting piece (205); The fixed arc plate (201) is overlapped on the outer top of the pipeline flange, and the arc-shaped limiting piece (205) is moved out of the arc-shaped track groove (202) and combined with the fixed arc plate (201) to form a "C"-shaped structure to achieve the limiting wrapping of the pipeline flange, thereby achieving the initial docking and limiting of the connecting flange (102) and the pipeline flange.

2. A flow meter for chemical pipeline monitoring according to claim 1, characterized in that: The pre-limiting assembly (2) further includes an arc-shaped opening (204), a threaded hole (209), and a locking bolt (210); The arc-shaped opening (204) is provided in the middle of the outer side of the fixed arc plate (201) and is connected to the limiting arc groove (203); the threaded hole (209) is provided inside the limiting slider (206) and passes through the inner and outer sides of the limiting slider (206); the screw portion of the locking bolt (210) passes through the arc-shaped opening (204) and is threadedly connected to the threaded hole (209); the end of the screw portion of the locking bolt (210) is tightly fitted with the inner ring side of the limiting arc groove (203), and the knob portion is tightly fitted with the outer side of the fixed arc plate (201), so as to realize the position locking of the arc-shaped limiting plate (205).

3. The flow meter for chemical pipeline monitoring according to claim 1, characterized in that: The inner diameters of the fixed arc plate (201) and the arc-shaped limiting piece (205) are the same and match the outer diameter of the pipeline flange. The arc angle of the "C"-shaped structure formed by the arc-shaped limiting piece (205) and the fixed arc plate (201) is greater than 270 degrees.

4. A flow meter for chemical pipeline monitoring according to claim 1, characterized in that: The horizontal width of the arc-shaped limiting piece (205) matches the horizontal width of the inner wall of the arc-shaped track groove (202) and is smaller than the horizontal width of the pipeline flange.

5. The flow meter for chemical pipeline monitoring according to claim 1, characterized in that: The distribution spacing between the two arc-shaped limiting pieces (205) is smaller than the horizontal width of the pipeline flange.

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