Nozzle Flowmeter Facilitating Assembly and Adjustment and Its Assembly and Adjustment Method

Abstract

The present invention discloses a nozzle flowmeter that is convenient for assembly and adjustment and its assembly and adjustment method, belonging to the technical field of flowmeters. The nozzle flowmeter that is convenient for assembly and adjustment includes two connecting pipes, an orifice plate assembly, and a connecting mechanism. Annular grooves are formed in the opposite ends of the two connecting pipes; the orifice plate assembly is located between the two connecting pipes. In the connecting mechanism of the present invention, by providing a first fixing ring, a second fixing ring, and a tensioning assembly, the distance between the two connecting pipes can be changed by adjusting the tensioning assembly, so that the orifice plate assembly can be easily clamped between the two connecting pipes, improving the assembly efficiency and reducing the operation difficulty; and through the detachable connection between the orifice plate assembly and the connecting pipe, it is also convenient to maintain, repair, or replace the orifice plate assembly in the later stage.

Description

Technical Field

[0001] The invention belongs to the technical field of flow meters, and in particular relates to a nozzle flow meter which is convenient to assemble and adjust and an assembling and adjusting method thereof. Background Art

[0002] As a core tool in the field of flow measurement, nozzle flowmeter has a long history of development. With the continuous advancement of industrial automation, the performance and accuracy of nozzle flowmeters have been significantly improved, and they are widely used in many fields such as petroleum, chemical industry, and metallurgy. Traditional nozzle flowmeters are usually composed of nozzles, measuring tubes, pressure devices, and flow calculators. The fluid is throttled through the nozzle, and the flow rate is calculated based on the pressure difference before and after throttling.

[0003] However, although the traditional nozzle flowmeter is relatively mature in technology, there are still many challenges in assembly. Since the traditional nozzle flowmeter has many parts and the connection between the parts is relatively complicated, the assembly process is time-consuming, which reduces production efficiency and needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide a nozzle flow meter that is easy to assemble and adjust and an assembly and adjustment method thereof, so as to solve the technical problems in the prior art that traditional nozzle flow meters have numerous components, the connections between the components are relatively complicated, the assembly process is time-consuming, and the production efficiency is reduced.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A nozzle flow meter that is easy to assemble and adjust includes: two connecting pipes, each of which has an annular groove on its opposite end; an orifice plate assembly located between the two connecting pipes; a connecting mechanism used to connect the orifice plate assembly to the two connecting pipes, which includes: a first fixing ring, which is fixedly sleeved on the connecting pipe; a second fixing ring, which is fixedly sleeved on the connecting pipe away from the first fixing ring; a tensioning assembly, which is used to adjust the distance between the first fixing ring and the second fixing ring; and two groups of support assemblies, which are used to support the tensioning assembly.

[0007] Preferably, the nozzle flowmeter which is convenient for assembly and adjustment also includes: two flanges, respectively installed on the opposite sides of the two connecting pipes, the flanges are provided with a plurality of flange holes; two mounting pipes, respectively connected to the two connecting pipes; and a measuring assembly, which is detachably connected to the two mounting pipes.

[0008] Preferably, the orifice plate assembly includes: a fixed plate; two plug rings, respectively installed on the two side surfaces of the fixed plate and plugged into the annular groove; a plurality of threaded holes, equidistantly arranged on the fixed plate; a plurality of nozzles, respectively threadedly connected to the plurality of threaded holes, and a plurality of fixing strips are installed on the nozzles.

[0009] Preferably, the connecting mechanism further includes: four mounting grooves, all of which are opened on the first fixing ring; four through grooves, all of which are opened on the second fixing ring.

[0010] Preferably, the tensioning assembly includes: two first connecting rods, which are respectively hinged to the two mounting grooves located above; two second connecting rods, which are respectively hinged to the two mounting grooves located below; four threaded columns, which are respectively installed on the two first connecting rods and the two second connecting rods, and the threaded columns penetrate through the through grooves; four nuts, which are respectively threadedly connected to the four threaded columns, and two fixing pieces are installed on the nuts.

[0011] Preferably, the supporting assembly includes: a fixing cylinder; an adjusting rod, which is slidably connected to the fixing cylinder; a tightening bolt, which is threadedly connected to the fixing cylinder, and its rod portion contacts the adjusting rod; a supporting portion, which is inserted into the lower end of the adjusting rod.

[0012] Preferably, the supporting portion includes: a disc; a fixing block, which is installed on the top surface of the disc; four first slots, which are respectively arranged on the four side surfaces of the fixing block; a second slot, which is arranged on the top surface of the fixing block, and the first slot and the second slot are both inserted and matched with the adjusting rod; a clamping slot, which is opened on the side surface of the disc and is inserted and matched with the fixing piece; an anti-slip groove, which is arranged on the side surface of the disc; a groove, which is opened on the bottom surface of the disc and is inserted and matched with the nozzle and a plurality of fixing strips.

[0013] Preferably, the tensioning assembly further includes: two strip-shaped grooves, which are respectively opened on the two second connecting rods, and the fixing cylinder is inserted and matched with the strip-shaped grooves; two square grooves, which are respectively opened on the two second connecting rods and are inserted and matched with the fixing cylinder; two sliding cylinders, which are respectively sleeved on the two second connecting rods in a sliding manner.

[0014] Preferably, the measuring assembly includes: a flow calculator, which has two pressure-taking pipes, and the other ends of the two pressure-taking pipes are respectively inserted and matched with two mounting pipes; two limiting plates, which are respectively fixedly sleeved on the two pressure-taking pipes; two rotating cylinders, which are respectively sleeved on the two pressure-taking pipes and are respectively threadedly connected to the two mounting pipes.

[0015] Assembly and adjustment method of a nozzle flowmeter that is convenient for assembly and adjustment, comprising the following steps: Step 1, install a plurality of nozzles in a plurality of threaded holes on a fixing plate; Step 2, clean the annular grooves formed at opposite ends of two connecting pipes, and then place the orifice plate assembly between the two connecting pipes; Step 3, by rotating two first connecting rods and two second connecting rods, enable four threaded posts to respectively penetrate through four through grooves, and then rotate four nuts until the four nuts are all in contact with the second fixing ring, so that the two connecting pipes clamp and fix the orifice plate assembly; Step 4, respectively insert and fit two pressure-taking pipes on a flow calculator with two installation pipes, and then rotate two rotating cylinders so that the rotating cylinders are threadedly connected to the installation pipes; Step 5, connect the fixing cylinder of the support assembly to the second connecting rod, ensure that the fixing cylinder can stably support, then adjust the position of the adjusting rod in the fixing cylinder to adjust the overall height of the support assembly, and use a tightening bolt to fix after the adjustment is completed, so that the support assembly supports the second connecting rod.

[0016] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are:

[0017] 1. In the present invention, the connection mechanism can change the distance between the two connecting pipes by adjusting the tensioning assembly through the setting of the first fixing ring, the second fixing ring and the tensioning assembly, so that the orifice plate assembly can be easily clamped between the two connecting pipes, improving the assembly efficiency and reducing the operation difficulty; and through the detachable connection between the orifice plate assembly and the connecting pipes, it is also convenient to maintain, repair or replace the orifice plate assembly in the later stage.

[0018] 2. In the present invention, the orifice plate assembly can quickly install the nozzle on the fixing plate or quickly disassemble the nozzle from the fixing plate by setting the fixing plate, two insertion rings, a plurality of threaded holes and a plurality of nozzles. This design improves the replacement efficiency of the nozzle and reduces the maintenance cost.

[0019] 3. In the present invention, the support assembly can adjust the overall height of the support assembly as needed through the setting of the fixing cylinder, the adjusting rod, the tightening bolt and the support part, so that the support assembly provides stable support for the connecting pipe, thereby improving the stability of the orifice plate assembly and the measuring assembly, and thus reducing the measurement error caused by vibration or external force;

[0020] When it is necessary to install the nozzle on the fixing plate or disassemble the nozzle from the fixing plate, the disc can be sleeved on the nozzle, and then the adjusting rod can be inserted into the second slot, so that the nozzle can be rotated labor-saving without the aid of other tools, facilitating the installation of the nozzle on the fixing plate or the disassembly of the nozzle from the fixing plate;

[0021] In addition, when it is necessary to rotate the nut, the clamping groove on the disc is inserted into the fixing piece on the nut, and then the disc is rotated around the threaded rod, and then the fixing piece is driven to rotate through the clamping groove, so that the nut can be rotated labor - saving without the aid of tools, thereby improving the assembly efficiency of the nozzle flowmeter;

[0022] In summary, the support assembly can not only improve the stability of the nozzle flowmeter, but also facilitate the installation or removal of the nozzle, and can also rotate the nut labor - saving, with strong adaptability. Brief Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 Is the three - dimensional view of the nozzle flowmeter convenient for assembly and adjustment in the present invention;

[0025] Figure 2 In the present invention Figure 1 Explosion diagram;

[0026] Figure 3 Is the internal structure schematic diagram of the connecting pipe in the present invention;

[0027] Figure 4 Is the assembly structure schematic diagram of the strip - shaped groove, square groove and sliding cylinder in the present invention;

[0028] Figure 5 Is the three - dimensional view of the orifice plate assembly in the present invention;

[0029] Figure 6 Is the three - dimensional view of the connecting mechanism in the present invention;

[0030] Figure 7 Is the assembly structure schematic diagram of the orifice plate assembly, adjusting rod and supporting part in the present invention;

[0031] Figure 8 Is the three - dimensional view of the supporting part in the present invention;

[0032] Figure 9 Is the assembly structure schematic diagram of the nut, fixing piece and supporting part in the present invention;

[0033] Figure 10 Is the assembly structure schematic diagram of the second connecting rod, strip - shaped groove, fixing cylinder and adjusting rod in the present invention;

[0034] Reference numerals: 100, connecting pipe; 101, annular groove; 102, flange; 103, flange hole; 104, mounting pipe; 110, orifice plate assembly; 111, fixing plate; 112, inserting ring; 113, threaded hole; 114, nozzle; 115, fixing strip; 120, measuring assembly; 121, flow calculator; 122, pressure tapping pipe; 123, limiting plate; 124, rotating cylinder; 200, connecting mechanism; 201, first fixing ring; 202, mounting groove; 203, second fixing ring; 204, through groove; 210, tensioning assembly; 211, first connecting rod; 212, second connecting rod; 213, threaded column; 214, nut; 215, fixing piece; 216, strip-shaped groove; 217, square groove; 218, sliding cylinder; 220, supporting assembly; 221, fixing cylinder; 222, adjusting rod; 223, tightening bolt; 224, supporting part; 2241, disc; 2242, fixing block; 2243, first slot; 2244, second slot; 2245, clamping slot; 2246, anti-slip groove; 2247, groove. Detailed implementation mode

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Embodiment 1: As Figure 1 and Figure 2 shown, a nozzle flowmeter convenient for assembly and adjustment includes two connecting pipes 100, an orifice plate assembly 110 and a connecting mechanism 200. Annular grooves 101 are formed at opposite ends of the two connecting pipes 100; the orifice plate assembly 110 is located between the two connecting pipes 100.

[0037] The connecting mechanism 200 is used to connect the orifice plate assembly 110 with the two connecting pipes 100. The connecting mechanism 200 includes a first fixing ring 201, a second fixing ring 203, a tensioning assembly 210 and two groups of supporting assemblies 220. The first fixing ring 201 is fixedly sleeved on the connecting pipe 100; the second fixing ring 203 is fixedly sleeved on the connecting pipe 100 away from the first fixing ring 201; the tensioning assembly 210 is used to adjust the distance between the first fixing ring 201 and the second fixing ring 203; the two groups of supporting assemblies 220 are used to support the tensioning assembly 210.

[0038] Specifically, during assembly, by placing the orifice plate assembly 110 between the two connecting pipes 100 and adjusting the distance between the two connecting pipes 100 through the connecting mechanism 200, the two connecting pipes 100 clamp the orifice plate assembly 110, thereby firmly connecting the orifice plate assembly 110 to the two connecting pipes 100.

[0039] During use, the tensioning assembly 210 can be supported by two sets of support assemblies 220, thereby supporting the two connecting pipes 100, improving the stability of the connecting pipes 100, and further improving the stability and measurement accuracy of the nozzle 114 flowmeter.

[0040] As Figure 2 and Figure 3 shown, the nozzle flowmeter that is convenient for assembly and adjustment further includes two flange plates 102, two mounting pipes 104, and a measuring assembly 120. The two flange plates 102 are respectively installed on the opposite sides of the two connecting pipes 100, and the flange plates 102 are provided with a plurality of flange holes 103; the two mounting pipes 104 are respectively connected to the two connecting pipes 100; the measuring assembly 120 is detachably connected to the two mounting pipes 104.

[0041] As Figure 2 shown, the measuring assembly 120 includes a flow calculator 121, two limit plates 123, and two rotating cylinders 124. The flow calculator 121 has two pressure-taking pipes 122, and the other ends of the two pressure-taking pipes 122 are respectively inserted and matched with the two mounting pipes 104; the two limit plates 123 are respectively fixedly sleeved on the two pressure-taking pipes 122; the two rotating cylinders 124 are respectively sleeved on the two pressure-taking pipes 122, and the two rotating cylinders 124 are respectively threadedly connected to the two mounting pipes 104. The rotating cylinder 124 can move up and down along the pressure-taking pipe 122 and can also rotate relative to the pressure-taking pipe 122.

[0042] Specifically, after the orifice plate assembly 110 is connected to the two connecting pipes 100, by inserting the two pressure-taking pipes 122 into the two mounting pipes 104 and then rotating the rotating cylinder 124 to make the rotating cylinder 124 threadedly connected to the mounting pipe 104, the pressure-taking pipe 122 cannot be separated from the mounting pipe 104 by itself.

[0043] As Figure 5 and Figure 7 shown, the orifice plate assembly 110 includes a fixing plate 111, two insertion rings 112, a plurality of threaded holes 113, and a plurality of nozzles 114. The two insertion rings 112 are respectively installed on the two side surfaces of the fixing plate 111, and the two insertion rings 112 are inserted and matched with the annular groove 101; the plurality of threaded holes 113 are equidistantly arranged on the fixing plate 111; the plurality of nozzles 114 are respectively threadedly connected to the plurality of threaded holes 113, and a plurality of fixing strips 115 are installed on the nozzles 114.

[0044] Specifically, by providing the insertion ring 112, it is convenient to connect the fixed plate 111 to the connecting pipe 100; by providing the threaded holes 113, it is convenient to detachably mount the nozzle 114 on the fixed plate 111, facilitating the replacement of the nozzle 114 at a later stage.

[0045] As Figure 6 shown, the connecting mechanism 200 further includes four mounting grooves 202 and four through grooves 204. The four mounting grooves 202 are all formed in the first fixing ring 201; the four through grooves 204 are all formed in the second fixing ring 203.

[0046] As Figure 4 and Figure 6 shown, the tensioning assembly 210 includes two first connecting rods 211, two second connecting rods 212, four threaded posts 213 and four nuts 214. The two first connecting rods 211 are respectively hinged to the two upper mounting grooves 202; the two second connecting rods 212 are respectively hinged to the two lower mounting grooves 202; the four threaded posts 213 are respectively mounted on the two first connecting rods 211 and the two second connecting rods 212, and the threaded posts 213 penetrate through the through grooves 204; the four nuts 214 are respectively threadedly connected to the four threaded posts 213, and two fixing pieces 215 are mounted on the nuts 214.

[0047] Specifically, when it is necessary to connect the fixed plate 111 to the two connecting pipes 100, by placing the fixed plate 111 between the two connecting pipes 100, the two insertion rings 112 on the fixed plate 111 are aligned with the two annular grooves 101.

[0048] Then, rotate the two first connecting rods 211 and the two second connecting rods 212 in sequence, so that the four threaded posts 213 respectively penetrate through the four through grooves 204. Then, rotate the nuts 214 so that the nuts 214 move along the threaded posts 213, thereby making the four nuts 214 all abut against the second fixing ring 203, thus shortening the distance between the first fixing ring 201 and the second fixing ring 203, clamping and fixing the fixed plate 111 by the two connecting pipes 100, and thus mounting the fixed plate 111 between the two connecting pipes 100.

[0049] As Figure 2 and Figure 6 shown, the support assembly 220 includes a fixed cylinder 221, an adjusting rod 222, a tightening bolt 223 and a support portion 224. The fixed cylinder 221 is a cavity structure; the adjusting rod 222 is slidably connected to the fixed cylinder 221; the tightening bolt 223 is threadedly connected to the fixed cylinder 221, and the rod portion of the tightening bolt 223 contacts the adjusting rod 222; the support portion 224 is inserted into the lower end of the adjusting rod 222.

[0050] Specifically, when the second connecting rod 212 needs to be supported, first place the supporting part 224 on the ground so that the supporting part 224 is directly above the adjusting rod 222. Contact the upper end of the fixing cylinder 221 with the second connecting rod 212. Then, rotate the tightening bolt 223 counterclockwise to separate the rod part of the tightening bolt 223 from the adjusting rod 222. Then move the adjusting rod 222 downward to connect the lower end of the adjusting rod 222 with the supporting part 224. Then rotate the tightening bolt 223 clockwise again to make the tightening bolt 223 abut against the adjusting rod 222, so that the adjusting rod 222 cannot move along the fixing cylinder 221, thereby fixing the overall height of the adjusting rod 222 and the fixing cylinder 221, and supporting the second connecting rod 212 through the fixing cylinder 221, the adjusting rod 222 and the supporting part 224, and further supporting the first fixing ring 201, the second fixing ring 203 and the two connecting pipes 100.

[0051] Working principle: During specific use and assembly, place the fixing plate 111 between the two connecting pipes 100 so that the two insertion rings 112 on the fixing plate 111 respectively align with the two annular grooves 101 on the two connecting pipes 100.

[0052] Then rotate the two first connecting rods 211 and the two second connecting rods 212 in sequence, so that the four threaded posts 213 respectively penetrate through the four through grooves 204, and then rotate the nuts 214 to make the nuts 214 move along the threaded posts 213, so that the four nuts 214 all abut against the second fixing ring 203, thereby shortening the distance between the first fixing ring 201 and the second fixing ring 203, and clamping and fixing the fixing plate 111 by the two connecting pipes 100, so as to install the fixing plate 111 between the two connecting pipes 100.

[0053] Then, insert the two pressure-taking pipes 122 into the two installation pipes 104, and rotate the rotating cylinder 124 to make the rotating cylinder 124 threadedly connected with the installation pipe 104, so that the pressure-taking pipe 122 cannot be separated from the installation pipe 104 by itself.

[0054] During use, connect the two flange plates 102 to the upstream and downstream pipes respectively by using a plurality of bolts, so that the fluid in the upstream pipe flows through the two connecting pipes 100 and then flows into the downstream pipe. During this period, the flow calculator 121 can measure the flow rate.

[0055] To improve the stability of the two connecting pipes 100 and the accuracy of the measuring component 120, first place the two supporting parts 224 on the ground so that the supporting parts 224 are directly above the adjusting rod 222 by bringing the upper end of the fixing cylinder 221 into contact with the second connecting rod 212. Then, rotate the tightening bolt 223 counterclockwise to separate the rod portion of the tightening bolt 223 from the adjusting rod 222, and then move the adjusting rod 222 downward to connect the lower end of the adjusting rod 222 to the supporting part 224. Then, rotate the tightening bolt 223 clockwise again to make the tightening bolt 223 abut against the adjusting rod 222, so that the adjusting rod 222 cannot move along the fixing cylinder 221, thereby fixing the overall height of the adjusting rod 222 and the fixing cylinder 221, and supporting the second connecting rod 212 through the fixing cylinder 221, the adjusting rod 222 and the supporting part 224, and further supporting the first fixing ring 201, the second fixing ring 203 and the two connecting pipes 100, so as to facilitate improving the stability of the two connecting pipes 100 and the measuring component 120, and further improving the accuracy of the measurement result.

[0056] Embodiment 2: As Figures 7 - 9 shown, in the case where other parts are the same as those in Embodiment 1, the difference between this embodiment and Embodiment 1 lies in:

[0057] The supporting part 224 includes a disc 2241, a fixing block 2242, four first slots 2243, a second slot 2244, a card slot 2245, an anti-slip groove 2246 and a groove 2247.

[0058] The fixing block 2242 is installed on the top surface of the disc 2241; the four first slots 2243 are respectively arranged on the four side surfaces of the fixing block 2242; the second slot 2244 is arranged on the top surface of the fixing block 2242, and both the first slot 2243 and the second slot 2244 are in plug-in fit with the adjusting rod 222; the card slot 2245 is opened on the side surface of the disc 2241, and the card slot 2245 is in plug-in fit with the fixing piece 215; the anti-slip groove 2246 is arranged on the side surface of the disc 2241; the groove 2247 is opened on the bottom surface of the disc 2241, and the groove 2247 is in plug-in fit with the nozzle 114 and the plurality of fixing strips 115.

[0059] Specifically, when the nozzle 114 needs to be installed on the fixing plate 111, the groove 2247 on the disc 2241 is sleeved on the nozzle 114 and the fixing strip 115, and then the rod portion of the adjusting rod 222 is inserted into the first slot 2243. Then, rotate the fixing cylinder 221 and the adjusting rod 222 to drive the fixing block 2242 and the disc 2241 to rotate, and further drive the nozzle 114 to rotate, so as to facilitate installing the nozzle 114 on the fixing plate 111 with less effort.

[0060] As Figure 10As shown in the figure, the tensioning assembly 210 further includes two strip-shaped grooves 216, two square grooves 217, and two sliding cylinders 218. The two strip-shaped grooves 216 are respectively formed on the two second connecting rods 212, and the fixed cylinder 221 is inserted and matched with the strip-shaped groove 216; the two square grooves 217 are respectively formed on the two second connecting rods 212, and the square groove 217 is inserted and matched with the fixed cylinder 221; the two sliding cylinders 218 are respectively sleeved on the two second connecting rods 212 in a sliding manner.

[0061] Specifically, when it is necessary to store the fixed cylinder 221 and the adjusting rod 222, first retract the adjusting rod 222 into the fixed cylinder 221, then place the fixed cylinder 221 into the strip-shaped groove 216 of the second connecting rod 212. Then, move the sliding cylinder 218 so that the sliding cylinder 218 holds the fixed cylinder 221, preventing the fixed cylinder 221 from moving out of the strip-shaped groove 216 by itself.

[0062] Working principle: When it is necessary to install the nozzle 114 on the fixing plate 111, by sleeving the groove 2247 on the disc 2241 over the nozzle 114 and the fixing strip 115, then inserting the rod portion of the adjusting rod 222 into the first slot 2243. Then, rotate the fixed cylinder 221 and the adjusting rod 222, thereby driving the fixed block 2242 and the disc 2241 to rotate, and further driving the nozzle 114 to rotate. Thus, without the need to use other tools, the nozzle 114 can be installed on the fixing plate 111 with less effort.

[0063] When it is necessary to rotate the nut 214, by inserting the slot 2245 on the disc 2241 into the fixing piece 215 on the nut 214, and then rotating the disc 2241 around the threaded rod, thereby driving the fixing piece 215 to rotate through the slot 2245. Thus, without the need to use tools, the nut 214 can be rotated with less effort.

[0064] When it is necessary to support the second connecting rod 212, first place the supporting portion 224 on the ground so that the supporting portion 224 is directly above the adjusting rod 222. By inserting the upper end of the fixed cylinder 221 into the square groove 217, then adjust the overall height of the adjusting rod 222 and the fixed cylinder 221 so that the lower end of the adjusting rod 222 is inserted into the second slot 2244 on the fixed block 2242. After the height adjustment is completed, use the tightening bolt 223 to fix the overall height of the adjusting rod 222 and the fixed cylinder 221. Support the second connecting rod 212 through the fixed cylinder 221, the adjusting rod 222, and the supporting portion 224, and further support the first fixing ring 201, the second fixing ring 203, and the two connecting pipes 100.

[0065] Embodiment 3: As Figures 1 - 10 shown, the assembly and adjustment method of the nozzle flowmeter that is convenient for assembly and adjustment includes the following steps:

[0066] Step 1: Install multiple nozzles 114 into multiple threaded holes 113 on the fixed plate 111;

[0067] Step 2: Clean the annular grooves 101 opened at the opposite ends of the two connecting pipes 100 to ensure that no debris affects the insertion. Then place the orifice plate assembly 110 between the two connecting pipes 100 and prepare for fixation;

[0068] Step 3: By rotating the two first connecting rods 211 and the two second connecting rods 212, make the four threaded posts 213 respectively penetrate through the four through slots 204, and then rotate the four nuts 214 until the four nuts 214 are all in contact with the second fixing ring 203, so that the two connecting pipes 100 clamp and fix the orifice plate assembly 110;

[0069] Step 4: Insert the two pressure tapping pipes 122 on the flow calculator 121 into the two installation pipes 104 respectively, and then rotate the two rotating cylinders 124 to thread the rotating cylinders 124 with the installation pipes 104 to ensure that the pressure tapping pipes 122 are tightly connected to the installation pipes 104;

[0070] Step 5: Connect the fixing cylinder 221 of the support assembly 220 to the second connecting rod 212 to ensure that the fixing cylinder 221 can stably support. Then adjust the position of the adjusting rod 222 in the fixing cylinder 221 to adjust the overall height of the support assembly 220, and fix it with the tightening bolt 223 after the adjustment;

[0071] Step 6: After the installation is completed, test the nozzle 114 flowmeter to ensure that it can work normally and accurately measure the flow rate.

[0072] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

[0073] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific embodiments. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A nozzle flowmeter that is convenient for assembly and adjustment, characterized in that, Comprising: Two connecting pipes (100), each having an annular groove (101) formed at a relative end thereof; An orifice plate assembly (110), located between the two connecting pipes (100); A connecting mechanism (200) for connecting the orifice plate assembly (110) to the two connecting pipes (100), which includes: A first fixing ring (201), fixedly sleeved on the connecting pipe (100); A second fixing ring (203), fixedly sleeved on the connecting pipe (100) away from the first fixing ring (201); A tensioning assembly (210) for adjusting the distance between the first fixing ring (201) and the second fixing ring (203); Two sets of support assemblies (220) for supporting the tensioning assembly (210); The orifice plate assembly (110) includes: A fixing plate (111); A plurality of threaded holes (113), equidistantly arranged on the fixing plate (111); A plurality of nozzles (114), respectively threadedly connected to the plurality of threaded holes (113), and a plurality of fixing bars (115) are installed on the nozzles (114); The support assembly (220) includes: A fixing cylinder (221); An adjusting rod (222), slidably connected to the fixing cylinder (221); A support portion (224), inserted into the lower end of the adjusting rod (222); The support portion (224) includes: A disc (2241); A fixing block (2242), installed on the top surface of the disc (2241); Four first slots (2243), respectively arranged on four side surfaces of the fixing block (2242); A second slot (2244), arranged on the top surface of the fixing block (2242), and the first slots (2243) and the second slot (2244) are both in plug-in fit with the adjusting rod (222); A card slot (2245), formed on the side surface of the disc (2241), in plug-in fit with the fixing piece (215); A groove (2247), formed on the bottom surface of the disc (2241), in plug-in fit with the nozzle (114) and the plurality of fixing bars (115).

2. The nozzle flowmeter that is convenient for assembly and adjustment according to claim 1, wherein Further comprising: Two flange plates (102), respectively installed on opposite sides of the two connecting pipes (100), and the flange plates (102) are provided with a plurality of flange holes (103); Two mounting pipes (104), respectively connected to the two connecting pipes (100); A measuring assembly (120), detachably connected to the two mounting pipes (104).

3. The nozzle flowmeter according to claim 2, characterized in that, The orifice plate assembly (110) further includes: Two insertion rings (112), respectively installed on both side surfaces of the fixing plate (111), in plug-in fit with the annular groove (101).

4. The nozzle flowmeter that is convenient for assembly and adjustment according to claim 3, wherein The connecting mechanism (200) further includes: Four mounting grooves (202), all formed on the first fixing ring (201); Four through grooves (204), all formed on the second fixing ring (203).

5. The nozzle flowmeter that is convenient for assembly and adjustment according to claim 4, characterized in that, The tensioning assembly (210) includes: Two first connecting rods (211), respectively hinged to the two upper mounting grooves (202); Two second connecting rods (212), respectively hinged to the two lower mounting grooves (202); Four threaded posts (213), respectively installed on the two first connecting rods (211) and the two second connecting rods (212), the threaded posts (213) passing through the through slots (204); Four nuts (214), respectively threadedly connected to the four threaded posts (213), and two fixing pieces (215) are installed on the nuts (214).

6. The nozzle flowmeter that is convenient for assembly and adjustment according to claim 5, wherein The support assembly (220) further includes: A tightening bolt (223), threadedly connected to the fixed cylinder (221), and its rod portion contacting the adjusting rod (222).

7. The nozzle flowmeter that is convenient for assembly and adjustment according to claim 6, characterized in that, The support portion (224) further includes: Anti-slip grooves (2246), provided on the side surface of the disc (2241).

8. The nozzle flowmeter that is convenient for assembly and adjustment according to claim 7, wherein The tensioning assembly (210) further includes: Two strip-shaped grooves (216), respectively opened on the two second connecting rods (212), the fixed cylinder (221) being inserted and fitted with the strip-shaped grooves (216); Two square grooves (217), respectively opened on the two second connecting rods (212), and inserted and fitted with the fixed cylinder (221); Two sliding cylinders (218), respectively slidably sleeved on the two second connecting rods (212).

9. The nozzle flowmeter that is convenient for assembly and adjustment according to claim 8, wherein, The measuring assembly (120) includes: A flow calculator (121), which has two pressure tapping pipes (122), and the other ends of the two pressure tapping pipes (122) are respectively inserted and fitted with the two installation pipes (104); Two limiting plates (123), respectively fixedly sleeved on the two pressure tapping pipes (122); Two rotating cylinders (124), respectively sleeved on the two pressure tapping pipes (122), and respectively threadedly connected to the two installation pipes (104).

10. The assembly and adjustment method of the nozzle flowmeter that is convenient for assembly and adjustment according to claim 9, characterized in that, Including the following steps: Step 1: Install a plurality of nozzles (114) into a plurality of threaded holes (113) on the fixing plate (111); Step 2: Clean the annular grooves (101) opened at the opposite ends of the two connecting pipes (100), and then place the orifice plate assembly (110) between the two connecting pipes (100); Step 3: By rotating the two first connecting rods (211) and the two second connecting rods (212), the four threaded posts (213) respectively pass through the four through slots (204), and then rotate the four nuts (214) until the four nuts (214) are all in contact with the second fixing ring (203), so that the two connecting pipes (100) clamp and fix the orifice plate assembly (110); Step 4: Insert the two pressure tapping pipes (122) on the flow calculator (121) into the two installation pipes (104) respectively, and then rotate the two rotating cylinders (124) so that the rotating cylinders (124) are threadedly connected to the installation pipes (104); Step 5: Connect the fixed cylinder (221) of the support component (220) to the second connecting rod (212) to ensure that the fixed cylinder (221) can stably support. Then, adjust the position of the adjusting rod (222) within the fixed cylinder (221) to adjust the overall height of the support component (220). After the adjustment is completed, use the tightening bolt (223) to fix it, so that the support component (220) supports the second connecting rod (212).

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