Power station transformer cooling water detection electromagnetic flowmeter convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of electromagnetic flow meters, aims to solve the problems that in the prior art, an electromagnetic flow meter installed on a cooling water pipe is inconvenient to disassemble and assemble and inconvenient to maintain and repair in a small range, and provides an electromagnetic flow meter convenient to disassemble and assemble and used for detecting cooling water of a power station transformer. The outer wall of the lined metering tube is sleeved with a shell, and the shell and the outer wall of the lined metering tube are connected in a sealed mode. A communication connecting pipe is arranged in the radial direction of the shell, the end, close to the shell, of the communication connecting pipe is fixedly connected to the outer wall of the shell, and the end, away from the shell, of the communication connecting pipe is electrically connected with a conversion displayer. A telescopic sleeve is arranged at one end of the lined metering tube, the telescopic sleeve and the lined metering tube are coaxial, and one end, close to the telescopic sleeve, of the lined metering tube is slidably connected into one end, close to the lined metering tube, of the telescopic sleeve in a sealed mode. The utility model has the beneficial effects of convenience in disassembly and assembly and convenience in maintenance and repair in a small range.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic flowmeters, in particular to an electromagnetic flowmeter for detecting cooling water of a power station transformer which is easy to disassemble and assemble. Background Art

[0002] The cooler system is a very important auxiliary equipment for large transformers. Whether it can operate reliably is directly related to the actual load capacity of the transformer. The main transformer of the power station generally adopts forced oil circulation water cooling. Each main transformer is equipped with multiple forced oil circulation water coolers. The cooler control system will put in and out a certain number of auxiliary coolers according to the load size, oil level and winding temperature of the transformer. Most of the coolers are set vertically, and there is a vertical cooling water pipe on the outside that enters the inside to provide cooling water continuously.

[0003] According to the survey, some existing power stations calculate the flow rate of cooling water through flow switches. Flow switches are thermal conductivity flow switches. In actual applications, they have disadvantages such as low measurement accuracy, unstable measurement, high false alarm rate, high damage rate, and high maintenance cost. Electromagnetic flow meters have higher accuracy. After applying them to the cooling water system of the power station and completing the main transformer cooler water flow signal acquisition, loop design, and main transformer cooler control system water flow signal control logic optimization, they have higher pressure interference resistance, accuracy, and stability. However, the main cooling equipment of the power station has a large flow rate, so the cooling water pipeline needs to be equipped with a large electromagnetic flowmeter during installation. A section needs to be cut on the cooling water pipeline to install the electromagnetic flowmeter. The size needs to be matched during installation, and the height of the electromagnetic flowmeter needs to be the same as the length of the cut opening. For large-volume electromagnetic flowmeters, it is not easy to put them into the incision, and it is inconvenient to disassemble and assemble. Utility Model Content

[0004] The utility model aims to provide an electromagnetic flowmeter for detecting cooling water of a power station transformer which is easy to disassemble and assemble, so as to solve the problems in the prior art that the electromagnetic flowmeter installed on the cooling water pipe is inconvenient to disassemble and assemble and inconvenient to maintain and repair in a small range.

[0005] The embodiment of the utility model is achieved as follows:

[0006] The utility model embodiment provides an electromagnetic flowmeter for detecting cooling water of a power station transformer which is easy to disassemble and assemble, and comprises a metering tube with a liner;

[0007] A detachable shell is sleeved on the outer wall of the metering tube with lining, and the shell is sealedly connected to the outer wall of the metering tube with lining;

[0008] A communication connection tube is provided in the radial direction of the shell, one end of the communication connection tube close to the shell is fixedly connected to the outer wall of the shell, and one end of the communication connection tube away from the shell is electrically connected to the conversion display;

[0009] A telescopic sleeve is provided at one end of the lined metering tube, the telescopic sleeve and the lined metering tube are coaxial with each other, and one end of the lined metering tube close to the telescopic sleeve is slidably and sealingly connected in one end of the telescopic sleeve close to the lined metering tube.

[0010] During installation, after cutting off a section of the cooling water pipe on the large cooling equipment of the power station transformer, the upper and lower ends of the cut cooling water pipe are respectively connected to the end of the above-mentioned lined metering pipe away from the above-mentioned telescopic sleeve and the end of the above-mentioned telescopic sleeve away from the above-mentioned lined metering pipe. The cooling water flow data is collected through the components inside the above-mentioned shell, and the data is transmitted to the above-mentioned conversion display on the above-mentioned communication connecting pipe for conversion and display, so that the staff can intuitively see the cooling water flow, and then it is convenient to adjust the cooling water flow.

[0011] The electromagnetic flowmeter for detecting cooling water of a power station transformer disclosed in this embodiment is easy to disassemble and assemble. Since the above-mentioned telescopic sleeve and the above-mentioned detachable shell are provided, the flowmeter can be easily connected to the cooling water pipe on the large cooling equipment of the power station transformer, thereby making the electromagnetic flowmeter for detecting cooling water of the power station transformer easy to disassemble and assemble have the beneficial effects of easy disassembly and assembly and convenient maintenance and repair within a small range.

[0012] Optionally: the above-mentioned conversion display collects the cooling water flow data in the above-mentioned lined metering pipe through the above-mentioned connecting pipe.

[0013] Such an arrangement makes it easy for the staff to intuitively see the cooling water flow rate on the above-mentioned conversion display, thereby realizing the collection and display of cooling water flow rate data, making it convenient for the staff to control the cooling water flow rate.

[0014] Optionally: an end earring is fixedly connected to the top of one end of the above-mentioned metering tube with lining close to the above-mentioned telescopic sleeve, a sleeve bottom end ring frame is provided between the end of the above-mentioned telescopic sleeve close to the above-mentioned metering tube with lining and the outer wall of the above-mentioned metering tube with lining, and the above-mentioned sleeve bottom end ring frame is fixedly connected to the end of the above-mentioned telescopic sleeve close to the above-mentioned metering tube with lining;

[0015] A plurality of adjusting screws are vertically connected to one side of the end earring close to the ring frame at the bottom end of the sleeve, and ends of the plurality of adjusting screws away from the end earrings penetrate the ring frame at the bottom end of the sleeve. A plurality of adjusting screw nuts are provided on the outer side of the ring frame at the bottom end of the sleeve, and the plurality of adjusting screw nuts are respectively threadedly connected to the plurality of adjusting screws and abut against the outer side surface of the ring frame at the bottom end of the sleeve.

[0016] With such arrangement, the telescopic sleeve can be driven to rise or fall by rotating a plurality of the adjusting screw nuts, so that the total length of the flow meter can be adjusted easily and the installation of the flow meter is beneficial.

[0017] Optionally, one end of the end earring close to the telescopic sleeve is fixedly connected with a ring plug, and the outer wall of the ring plug can be slidably and sealingly fitted on the inner wall of the telescopic sleeve.

[0018] Arranged in this way, the above-mentioned ring plug is mainly used to prevent water leakage when the cooling water of the power station transformer flows from the above-mentioned lined metering pipe into the above-mentioned telescopic sleeve. It allows the above-mentioned telescopic sleeve to be telescoped in the above-mentioned lined metering pipe to change the total length of the flow meter, and avoids the leakage of cooling water, thereby ensuring the accuracy of calculating the cooling water flow rate.

[0019] Optionally: several of the above-mentioned adjusting screws are each provided with an auxiliary spring, one end of the above-mentioned auxiliary spring is elastically connected to the side of the above-mentioned end earring close to the above-mentioned bottom end ring frame of the above-mentioned sleeve, and the other end of the above-mentioned auxiliary spring is elastically connected to the side of the above-mentioned bottom end ring frame of the above-mentioned sleeve close to the above-mentioned end earring.

[0020] With such arrangement, the plurality of auxiliary springs can assist in driving the telescopic sleeve to move downward. When the flow meter is not in use, the auxiliary springs keep the total length of the flow meter at a minimum, which is beneficial to the transportation and storage of the equipment.

[0021] Optionally: the shell has a first fixed shell baffle ring and a second fixed shell baffle ring, the first fixed shell baffle ring and the second fixed shell baffle ring are coaxial and spaced apart, the first fixed shell baffle ring and the second fixed shell baffle ring are both sleeved on the outer wall of the lined metering tube, and the inner rings of the first fixed shell baffle ring and the second fixed shell baffle ring are welded and sealed to the outer wall of the lined metering tube.

[0022] With such arrangement, the first fixed shell retaining ring and the second fixed shell retaining ring can be sealedly connected with the lined metering tube, so as to facilitate sealing and fixing the shell on the lined metering tube. At the same time, the first fixed shell retaining ring and the second fixed shell retaining ring also play a limiting role.

[0023] Optionally: a first half-cylinder shell and a second half-cylinder shell are provided between the first fixed shell baffle ring and the second fixed shell baffle ring, the first half-cylinder shell and the second half-cylinder shell are symmetrically assembled to each other, and the two ends of the first half-cylinder shell and the second half-cylinder shell are respectively detachably sealed and connected to the first fixed shell baffle ring and the second fixed shell baffle ring.

[0024] In this way, the arrangement of the first half-cylindrical shell and the second half-cylindrical shell makes the shell body airtight and is also beneficial for protecting the components inside the shell body.

[0025] Optionally, a seam gasket is installed along the joint between the first half-cylinder shell and the second half-cylinder shell.

[0026] With such arrangement, the joint gasket strip can increase the sealing performance along the joint between the first half-cylinder shell and the second half-cylinder shell, further improving the sealing effect of the shell.

[0027] Optionally: the inner ring end faces of the above-mentioned first fixed shell retaining ring and the above-mentioned second fixed shell retaining ring are both provided with retaining ring inner ring ears, and the two ends of the above-mentioned first half-cylindrical shell and the above-mentioned second half-cylindrical shell are respectively detachably sealed and connected to the above-mentioned retaining ring inner ring ears of the above-mentioned first fixed shell retaining ring and the above-mentioned second fixed shell retaining ring through a plurality of fixing bolts.

[0028] With such arrangement, when maintenance is required, there is no need to disassemble the entire device, because the electromagnetic flowmeter for detecting cooling water of the power station transformer, which is easy to disassemble and assemble, is used above the ground and is installed on the vertical main water pipe of the power station transformer. Therefore, the first half-cylinder shell and the second half-cylinder shell can be directly disassembled by a plurality of fixing bolts, so that the first half-cylinder shell and the second half-cylinder shell are detached from the inner ring ear of the retaining ring, which is convenient for maintenance and repair within a small range.

[0029] Optionally: one end of the lined metering pipe away from the telescopic sleeve is fixedly connected to a bottom flange, and one end of the telescopic sleeve away from the lined metering pipe is fixedly connected to a top flange.

[0030] With such arrangement, the bottom flange and the top flange make it easy to connect the flow meter to the cooling water pipe of the large cooling equipment of the power station transformer, which is beneficial to the disassembly and assembly of the flow meter.

[0031] Optionally: the above-mentioned conversion display has a display screen.

[0032] With such an arrangement, the display screen can intuitively display the cooling water flow rate of the flow meter, making it easier for the staff to adjust the cooling water flow rate.

[0033] Optionally: the side of the above-mentioned conversion display has a control knob.

[0034] With such arrangement, the control knob can operate the conversion display, so as to calculate the cooling water flow rate an unlimited number of times. After each calculation, the cooling water flow rate can be calculated again by returning to zero.

[0035] In summary of the above description, the electromagnetic flowmeter for detecting cooling water of a power station transformer disclosed by the utility model, which is easy to disassemble and assemble, has the beneficial effects of being easy to disassemble and assemble and convenient for maintenance and repair in a small range. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 This is a schematic diagram of the structure of an electromagnetic flowmeter for detecting cooling water of a power station transformer that is easy to disassemble and assemble in an embodiment of the utility model;

[0038] Figure 2 It is a first cross-sectional view of an electromagnetic flowmeter for detecting cooling water of a power station transformer that is easy to disassemble and assemble in an embodiment of the utility model;

[0039] Figure 3 It is a second cross-sectional view of an electromagnetic flowmeter for detecting cooling water of a power station transformer which is easy to disassemble and assemble in an embodiment of the utility model.

[0040] Icons: 1-lined metering tube, 2-shell, 3-communication connecting tube, 4-conversion display, 5-telescopic sleeve, 6-end earring, 7-ring frame at the bottom of the sleeve, 8-adjusting screw, 9-adjusting screw nut, 10-ring plug, 11-auxiliary spring, 12-first fixed shell retaining ring, 13-second fixed shell retaining ring, 14-first half cylinder shell, 15-second half cylinder shell, 16-jointed gasket, 17-inner ring ear of retaining ring, 18-fixing bolt, 19-bottom flange, 20-top flange, 21-display screen, 22-control knob. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Example

[0044] See also Figure 1 , Figure 2and Figure 3 , This embodiment provides an electromagnetic flowmeter for detecting cooling water of a power station transformer that is easy to disassemble and assemble, including a metering tube 1 with a liner;

[0045] A detachable shell 2 is sleeved on the outer wall of the lined metering tube 1, and the shell 2 is sealedly connected to the outer wall of the lined metering tube 1;

[0046] A communication connection pipe 3 is provided in the radial direction of the housing 2, one end of the communication connection pipe 3 close to the housing 2 is fixedly connected to the outer wall of the housing 2, and one end of the communication connection pipe 3 away from the housing 2 is electrically connected to a conversion display 4;

[0047] A telescopic sleeve 5 is provided at one end of the lined metering tube 1. The telescopic sleeve 5 and the lined metering tube 1 are coaxial with each other. One end of the lined metering tube 1 close to the telescopic sleeve 5 is slidably and sealingly connected to the other end of the telescopic sleeve 5 close to the lined metering tube 1.

[0048] During installation, after cutting off a section of the cooling water pipe on the large cooling equipment of the power station transformer, the upper and lower ends of the cut cooling water pipe are respectively connected to the end of the lined metering pipe 1 away from the telescopic sleeve 5 and the end of the telescopic sleeve 5 away from the lined metering pipe 1, and the cooling water flow data is collected through the components inside the shell 2. The data is transmitted to the conversion display 4 on the communication connecting pipe 3 for conversion and display, so that the staff can intuitively see the cooling water flow, and then it is convenient to adjust the cooling water flow.

[0049] The electromagnetic flowmeter for detecting cooling water of a power station transformer disclosed in this embodiment is easy to disassemble and assemble. Since it is provided with a retractable telescopic sleeve 5 and a detachable shell 2, the flowmeter can be easily connected to the cooling water pipe on the large cooling equipment of the power station transformer, thereby making the electromagnetic flowmeter for detecting cooling water of the power station transformer easy to disassemble and assemble have the beneficial effects of easy disassembly and assembly and convenient maintenance and repair within a small range.

[0050] See also Figure 1 , Figure 2 and Figure 3 The conversion display 4 collects the cooling water flow data in the lined metering pipe 1 through the connecting pipe 3, so that the staff can intuitively see the cooling water flow on the conversion display, thereby realizing the collection and display of the cooling water flow data, which is convenient for the staff to control the cooling water flow.

[0051] An end earring 6 is fixedly connected to the top of one end of the lined metering tube 1 close to the telescopic sleeve 5, and a sleeve bottom end ring frame 7 is provided between the end of the telescopic sleeve 5 close to the lined metering tube 1 and the outer wall of the lined metering tube 1, and the sleeve bottom end ring frame 7 is fixedly connected to the end of the telescopic sleeve 5 close to the lined metering tube 1; a plurality of adjusting screws 8 are vertically connected to the side of the end earring 6 close to the sleeve bottom end ring frame 7, and the ends of the plurality of adjusting screws 8 away from the end earring 6 all penetrate the sleeve bottom end ring frame 7, and a plurality of adjusting screw nuts 9 are provided on the outer side of the sleeve bottom end ring frame 7, and the plurality of adjusting screw nuts 9 are respectively threadedly connected to the plurality of adjusting screws 8 and abut against the outer side surface of the sleeve bottom end ring frame 7, and the telescopic sleeve 5 can be driven to rise or fall by rotating the plurality of adjusting screw nuts 9, so as to facilitate the adjustment of the total length of the flow meter and facilitate the installation of the flow meter.

[0052] The end of the end earring 6 close to the telescopic sleeve 5 is fixedly connected with a ring plug 10, and the outer wall of the ring plug 10 can be slidably sealed and fitted on the inner wall of the telescopic sleeve 5. The ring plug 10 is mainly used to prevent water leakage when the cooling water of the power station transformer flows into the telescopic sleeve 5 from the lined metering pipe 1, so that the telescopic sleeve 5 can be extended and retracted in the lined metering pipe 1 to change the total length of the flow meter, and the leakage of cooling water is avoided, thereby ensuring the accuracy of calculating the cooling water flow.

[0053] Auxiliary springs 11 are sleeved on several adjusting screws 8, one end of the auxiliary spring 11 is elastically connected to the side of the end earring 6 close to the ring frame 7 at the bottom end of the sleeve, and the other end of the auxiliary spring 11 is elastically connected to the side of the ring frame 7 at the bottom end of the sleeve close to the end earring 6. Several auxiliary springs 11 can assist in driving the telescopic sleeve 5 to move downward. When the flow meter is not in use, the auxiliary springs 11 keep the total length of the flow meter at a minimum, which is beneficial to the transportation and storage of the equipment.

[0054] See also Figure 1 , Figure 2 and Figure 3 The shell 2 has a first fixed shell retaining ring 12 and a second fixed shell retaining ring 13, the first fixed shell retaining ring 12 and the second fixed shell retaining ring 13 are coaxial and spaced apart, the first fixed shell retaining ring 12 and the second fixed shell retaining ring 13 are both sleeved on the outer wall of the lined metering tube 1, the inner rings of the first fixed shell retaining ring 12 and the second fixed shell retaining ring 13 are welded and sealed to the outer wall of the lined metering tube 1, the first fixed shell retaining ring 12 and the second fixed shell retaining ring 13 can be sealed and connected with the lined metering tube 1, so as to facilitate the sealing fixation of the shell 2 on the lined metering tube 1, and at the same time, the first fixed shell retaining ring 12 and the second fixed shell retaining ring 13 also play a limiting role.

[0055] A first half-cylinder shell 14 and a second half-cylinder shell 15 are provided between the first fixed shell retaining ring 12 and the second fixed shell retaining ring 13. The first half-cylinder shell 14 and the second half-cylinder shell 15 are symmetrically assembled with each other. Both ends of the first half-cylinder shell 14 and the second half-cylinder shell 15 are detachably sealed and connected to the first fixed shell retaining ring 12 and the second fixed shell retaining ring 13 respectively. The arrangement of the first half-cylinder shell 14 and the second half-cylinder shell 15 makes the shell 2 airtight and is beneficial to protecting the components inside the shell 2.

[0056] A seam gasket 16 is installed along the joint between the first half-cylinder shell 14 and the second half-cylinder shell 15 . The seam gasket 16 can increase the sealing performance along the joint between the first half-cylinder shell 14 and the second half-cylinder shell 15 , further improving the sealing effect of the shell 2 .

[0057] The inner ring end faces of the first fixed shell retaining ring 12 and the second fixed shell retaining ring 13 are both provided with retaining ring inner ring ears 17, and the two ends of the first half cylinder shell 14 and the second half cylinder shell 15 are detachably sealed and connected to the retaining ring inner ring ears 17 of the first fixed shell retaining ring 12 and the second fixed shell retaining ring 13 by a plurality of fixing bolts 18. When maintenance is required, there is no need to disassemble the entire body. Since the electromagnetic flowmeter for detecting cooling water of the power station transformer, which is easy to disassemble and assemble, is used above the ground and installed on the vertical main water pipe of the power station transformer, the first half cylinder shell 14 and the second half cylinder shell 15 can be directly disassembled by a plurality of fixing bolts 18, so that the first half cylinder shell 14 and the second half cylinder shell 15 are detached from the retaining ring inner ring ears 17, which is convenient for maintenance and repair within a small range.

[0058] See also Figure 1 , Figure 2 and Figure 3 The end of the lined metering tube 1 away from the telescopic sleeve 5 is fixedly connected with a bottom flange 19, and the end of the telescopic sleeve 5 away from the lined metering tube 1 is fixedly connected with a top flange 20. The bottom flange 19 and the top flange 20 make it easy to connect the flow meter to the cooling water pipe of the large cooling equipment of the power station transformer, which is beneficial to the disassembly and assembly of the flow meter.

[0059] The conversion display 4 has a display screen 21, which can intuitively display the cooling water flow rate of the flow meter, making it convenient for the staff to adjust the cooling water flow rate.

[0060] A control knob 22 is provided on the side of the conversion display 4. The control knob 22 can operate the conversion display 4 to facilitate unlimited calculations of the cooling water flow. The cooling water flow can be calculated again by returning to zero after each calculation.

[0061] See also Figure 1 , Figure 2 and Figure 3 The specific installation principle of the electromagnetic flowmeter for detecting cooling water of power station transformer which is easy to disassemble and assemble in this embodiment is as follows:

[0062] The electromagnetic flowmeter for detecting cooling water of power station transformers that is easy to disassemble and assemble is mainly used on large cooling equipment of power station transformers. The equipment used here is mostly installed on water pipes of vertical structure. After cutting off a section of the water pipe, water pipe flanges are installed at the upper and lower ends of the incision respectively. Due to the large water flow rate, the flow rate of the lined metering pipe 1 is also large. The electromagnetic flowmeter for detecting cooling water of power station transformers that is easy to disassemble and assemble is hoisted to the incision by hoisting equipment, and then the electromagnetic flowmeter for detecting cooling water of power station transformers that is easy to disassemble and assemble is docked to the incision. In order to facilitate insertion, the total length of the electromagnetic flowmeter for detecting cooling water of power station transformers that is easy to disassemble and assemble is adjusted by adjusting the telescopic sleeve 5 to make it slightly smaller than the length of the incision, so that it can be smoothly inserted. After insertion, the adjusting screw nut 9 is turned, and the adjusting screw nut 9 cooperates with the adjusting screw 8 to drive the telescopic sleeve 5 to rise so that the top flange 20 of the top is connected to the upper water pipe flange of the incision, and the bottom flange 19 at the lower end of the lined metering pipe 1 is connected to the lower water pipe flange of the incision, thereby realizing installation;

[0063] After the pipe cutting and flange welding are completed, the construction quality is inspected and evaluated to ensure that it meets the design requirements and relevant specifications; when maintenance is required, there is no need to disassemble the entire unit, because the electromagnetic flowmeter for detecting cooling water of the power station transformer, which is easy to disassemble and assemble, is used above the ground and is installed on the vertical main water pipe of the power station transformer. Therefore, the detachable shell 2 can be directly disassembled by a number of fixing bolts 18, which is convenient for maintenance and repair within a small range.

[0064] See also Figure 1 , Figure 2 and Figure 3 In this embodiment, the electromagnetic flowmeter for detecting cooling water of a power station transformer that is easy to disassemble and assemble is improved on the basis of the existing technology. By changing the length of the electromagnetic flowmeter in a small range, the modification and installation of the main pipeline of the large cooling equipment on the power station transformer is convenient, and the detachable shell 2 is convenient for disassembly and maintenance, and maintenance is simple.

[0065] See also Figure 1 , Figure 2 and Figure 3 In this embodiment, a lining is provided inside the lined metering tube 1, and components such as an iron core, an excitation coil, and electrodes are also provided inside the detachable shell 2. The installation and structural features thereof are public knowledge and will not be further described in this technical solution.

[0066] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An electromagnetic flowmeter for detecting cooling water of a power station transformer that is easy to disassemble and assemble, characterized in that: It comprises a lined metering tube (1); A detachable shell (2) is sleeved on the outer wall of the lined metering tube (1), and the shell (2) is sealedly connected to the outer wall of the lined metering tube (1); A communication connection tube (3) is provided in the radial direction of the shell (2); one end of the communication connection tube (3) close to the shell (2) is fixedly connected to the outer wall of the shell (2); and one end of the communication connection tube (3) away from the shell (2) is electrically connected to a conversion display (4); A telescopic sleeve (5) is provided at one end of the lined metering tube (1), and the telescopic sleeve (5) and the lined metering tube (1) are coaxial with each other. One end of the lined metering tube (1) close to the telescopic sleeve (5) is slidably and sealingly connected inside the other end of the telescopic sleeve (5) close to the lined metering tube (1).

2. The electromagnetic flowmeter for detecting cooling water of a power station transformer that is easy to disassemble and assemble according to claim 1 is characterized in that: The conversion display (4) collects cooling water flow data in the lined metering pipe (1) through the connecting pipe (3).

3. The electromagnetic flowmeter for detecting cooling water of a power station transformer that is easy to disassemble and assemble according to claim 1 is characterized in that: An end earring (6) is fixedly connected to the top of one end of the lined metering tube (1) close to the telescopic sleeve (5), a sleeve bottom end ring frame (7) is provided between the end of the telescopic sleeve (5) close to the lined metering tube (1) and the outer wall of the lined metering tube (1), and the sleeve bottom end ring frame (7) is fixedly connected to the end of the telescopic sleeve (5) close to the lined metering tube (1); A plurality of adjusting screws (8) are vertically connected to one side of the end earring (6) close to the sleeve bottom ring frame (7), and the ends of the plurality of adjusting screws (8) away from the end earring (6) all penetrate the sleeve bottom ring frame (7). A plurality of adjusting screw nuts (9) are arranged on the outer side of the sleeve bottom ring frame (7), and the plurality of adjusting screw nuts (9) are respectively threadedly connected to the plurality of adjusting screws (8) and abut against the outer side surface of the sleeve bottom ring frame (7).

4. The electromagnetic flowmeter for detecting cooling water of a power station transformer that is easy to disassemble and assemble according to claim 3 is characterized in that: A ring plug (10) is fixedly connected to one end of the end earring (6) close to the telescopic sleeve (5), and the outer wall of the ring plug (10) can be slidably and sealingly fitted to the inner wall of the telescopic sleeve (5).

5. The electromagnetic flowmeter for detecting cooling water of a power station transformer that is easy to disassemble and assemble according to claim 3 is characterized in that: Auxiliary springs (11) are sleeved on the plurality of adjusting screws (8), one end of the auxiliary spring (11) is elastically connected to a side of the end earring (6) close to the ring frame (7) at the bottom end of the sleeve, and the other end of the auxiliary spring (11) is elastically connected to a side of the ring frame (7) at the bottom end of the sleeve close to the end earring (6).

6. The electromagnetic flowmeter for detecting cooling water of a power station transformer that is easy to disassemble and assemble according to claim 1 is characterized in that: The shell (2) comprises a first fixed shell retaining ring (12) and a second fixed shell retaining ring (13); the first fixed shell retaining ring (12) and the second fixed shell retaining ring (13) are coaxial with each other and spaced apart; the first fixed shell retaining ring (12) and the second fixed shell retaining ring (13) are both sleeved on the outer wall of the lined metering tube (1); the inner rings of the first fixed shell retaining ring (12) and the second fixed shell retaining ring (13) are welded and sealed to the outer wall of the lined metering tube (1).

7. The electromagnetic flowmeter for detecting cooling water of a power station transformer that is easy to disassemble and assemble according to claim 6 is characterized in that: A first half-cylinder shell (14) and a second half-cylinder shell (15) are provided between the first fixed shell retaining ring (12) and the second fixed shell retaining ring (13); the first half-cylinder shell (14) and the second half-cylinder shell (15) are symmetrically assembled with each other; and both ends of the first half-cylinder shell (14) and the second half-cylinder shell (15) are detachably sealed and connected to the first fixed shell retaining ring (12) and the second fixed shell retaining ring (13), respectively.

8. The electromagnetic flowmeter for detecting cooling water of a power station transformer that is easy to disassemble and assemble according to claim 7 is characterized in that: A seam gasket strip (16) is installed along the seam where the first half-cylinder shell (14) and the second half-cylinder shell (15) are spliced.

9. The electromagnetic flowmeter for detecting cooling water of a power station transformer that is easy to disassemble and assemble according to claim 7 is characterized in that: The inner ring end surfaces of the first fixed shell retaining ring (12) and the second fixed shell retaining ring (13) are both provided with retaining ring inner ring ears (17), and the two ends of the first half-cylinder shell (14) and the second half-cylinder shell (15) are detachably sealedly connected to the retaining ring inner ring ears (17) of the first fixed shell retaining ring (12) and the second fixed shell retaining ring (13) via a plurality of fixing bolts (18).

10. The electromagnetic flowmeter for detecting cooling water of a power station transformer that is easy to disassemble and assemble according to claim 1, characterized in that: One end of the lined metering pipe (1) away from the telescopic sleeve (5) is fixedly connected to a bottom flange (19), and one end of the telescopic sleeve (5) away from the lined metering pipe (1) is fixedly connected to a top flange (20).

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