An elbow flowmeter that is easy to maintain

Abstract

The present invention relates to the technical field of elbow flowmeters, and in particular to an elbow flowmeter that is easy to maintain, comprising an inlet pipe body, an elbow body, and an outlet pipe body; the elbow body is provided with an upper pressure differential sensor and a lower pressure differential sensor; one end of the elbow body is provided with a first rotating ring for rotation; the first rotating ring is provided with a first cleaning strip and a second cleaning strip; the inlet pipe body is provided with a first fixed ring; the first fixed ring is provided with a first rotating turbine for rotation; a first linkage assembly is provided between the first rotating turbine and the first rotating ring. The present invention causes the first rotating turbine to rotate through the impact of liquid, and during the rotation of the first rotating turbine, the first rotating ring is driven to rotate through the first linkage assembly. The rotation of the first rotating ring causes the first cleaning strip and the second cleaning strip to move respectively against the inner wall of the elbow body, thereby cleaning the inner wall of the elbow body, achieving continuous scraping and cleaning of the sediment on the inner wall of the elbow body, effectively preventing scaling and clogging, and improving measurement stability.

Description

Technical Field

[0001] The present invention relates to the technical field of elbow flowmeters, and in particular to an elbow flowmeter that is easy to maintain. Background Art

[0002] In the field of industrial fluid measurement, elbow flowmeters, with their simple structure and easy installation, are widely used for flow monitoring and control in industries such as petroleum, chemical, and power. However, over long-term operation, factors such as fluid turbulence and sedimentation can easily cause scale and impurity accumulation on the inner walls of elbows. This accumulation not only significantly reduces measurement accuracy and causes metering deviations, but also increases pressure loss when the fluid passes through the elbow, affecting the operating efficiency of the entire piping system. In severe cases, it can even cause pipeline blockages and interrupt production processes.

[0003] To solve the above problems, most elbow flowmeter products on the market currently use manual cleaning methods, but this method requires regular shutdown maintenance, which not only consumes a lot of manpower and material resources, but also reduces the effective operating time of the equipment and affects production efficiency. Some products are equipped with electric-driven cleaning devices, attempting to achieve automatic cleaning through mechanical movement, but such devices have complex structures, which increases the manufacturing and maintenance costs of the equipment, and there is a risk of failure of the electric-driven components during operation. It is not suitable for key production scenarios such as chemical and pharmaceutical industries that have high requirements for system stability, and it is difficult to meet the needs of industrial production for efficient and stable flow measurement. Summary of the Invention

[0004] The object of the present invention is to provide a bend pipe flowmeter that is easy to maintain in view of the above-mentioned deficiencies in the prior art.

[0005] The object of the present invention is achieved through the following technical solution: a bend flowmeter that is easy to maintain, comprising an inlet pipe body, a bend pipe body, and a water outlet pipe body; one end of the bend pipe body is connected to the inlet pipe body; the other end of the bend pipe body is connected to the water outlet pipe body; an upper pressure differential sensor and a lower pressure differential sensor are provided opposite the bend pipe body;

[0006] A first rotating ring is rotatably provided at one end of the curved tube body; the first rotating ring is provided with a first cleaning strip and a second cleaning strip; the first cleaning strip and the second cleaning strip respectively abut against the inner wall of the curved tube body;

[0007] The water inlet pipe body is provided with a first fixed ring; the first fixed ring is rotatably provided with a first rotating turbine; a first linkage assembly is provided between the first rotating turbine and the first rotating ring; the first rotating turbine drives the first rotating ring to rotate through the first linkage assembly.

[0008] The present invention is further configured such that the first linkage assembly includes a first driving rod and a first linkage rod; one end of the first driving rod is hinged to the first fixed ring; one end of the first linkage rod is fixedly connected to the first rotating ring; the other end of the first driving rod is telescopically movably disposed at the other end of the first linkage rod;

[0009] The first driving rod is provided with a first driving groove along the length direction; the first rotating turbine is provided with a first driving block; and the first driving block is slidably arranged in the first driving groove.

[0010] The present invention is further configured such that one end of the first cleaning strip and one end of the second cleaning strip are symmetrically arranged on the first rotating ring;

[0011] The first driving block is movably arranged on the first rotating turbine; a first thermal spring is arranged between the first driving block and the first rotating turbine.

[0012] The present invention is further configured such that one end of the first cleaning strip and one end of the second cleaning strip are respectively rotatably mounted on a first rotating ring; a friction ring is provided on the inner wall of one end of the curved tube body; and one end of the first cleaning strip and one end of the second cleaning strip are respectively in contact with the friction ring.

[0013] The present invention is further configured such that a limiting outer ring is provided on the inner wall of the bent pipe body; a limiting inner ring is provided for rotation inside the limiting outer ring; a limiting gap is formed between the limiting outer ring and the limiting inner ring; and the middle of the first cleaning strip and the middle of the second cleaning strip are respectively provided in the limiting gap.

[0014] The present invention is further configured such that both the first cleaning bar and the second cleaning bar are wire brushes.

[0015] The present invention is further configured such that a second rotating ring is rotatably provided at the other end of the curved tube body; a first limiting groove and a second limiting groove are formed between the outer wall of the second rotating ring and the inner wall of the curved tube body; the other end of the first cleaning strip is passed through the first limiting groove; and the other end of the second cleaning strip is passed through the second limiting groove.

[0016] The present invention is further configured such that the water outlet pipe body is provided with a second fixed ring; the second fixed ring is provided with a second rotating turbine for rotation; a second linkage assembly is provided between the second rotating turbine and the second rotating ring; and the second rotating turbine drives the second rotating ring to rotate through the second linkage assembly.

[0017] The present invention is further configured such that the second linkage assembly includes a second driving rod and a second linkage rod; one end of the second driving rod is hinged to the second fixed ring; a connecting rod is fixedly provided between one end of the second linkage rod and the second rotating ring; the other end of the second driving rod is telescopically movably provided at the other end of the second linkage rod;

[0018] The second driving rod is provided with a second driving groove along the length direction; the second rotating turbine is provided with a second driving block; and the second driving block is slidably arranged in the second driving groove.

[0019] The present invention is further configured such that the first limiting groove and the second limiting groove are symmetrically arranged;

[0020] The second driving block is movably arranged on the second rotating turbine; a second thermal spring is arranged between the second driving block and the second rotating turbine.

[0021] The beneficial effects of the present invention are as follows: the present invention causes the first rotating turbine to rotate through the impact of the liquid, and during the rotation of the first rotating turbine, the first rotating ring is driven to rotate through the first linkage assembly. The rotation of the first rotating ring causes the first cleaning strip and the second cleaning strip to move respectively along the inner wall of the bent pipe body, thereby cleaning the inner wall of the bent pipe body, achieving continuous scraping and cleaning of the deposits on the inner wall of the bent pipe body, effectively preventing scaling and clogging, and improving measurement stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 is a cross-sectional view of the present invention;

[0024] Figure 3 It is an internal structure diagram of the present invention;

[0025] Figure 4 It is an internal structure diagram of another perspective of the present invention;

[0026] Figure 5 This is a schematic structural diagram of the cooperation between the first fixed ring and the first rotating ring of the present invention;

[0027] Figure 6 is a structural schematic diagram of the cooperation between the first fixed ring and the first rotating ring of the present invention from another perspective;

[0028] Figure 7 This is a schematic structural diagram of the cooperation between the second fixed ring and the second rotating ring of the present invention;

[0029] Figure 8 is a structural schematic diagram of the cooperation between the second fixed ring and the second rotating ring of the present invention from another perspective;

[0030] Among them: 1. water inlet pipe body; 11. first fixed ring; 2. bent pipe body; 21. upper pressure difference sensor; 22. lower pressure difference sensor; 23. friction ring; 3. water outlet pipe body; 31. second fixed ring; 41. first rotating ring; 42. first cleaning bar; 43. second cleaning bar; 44. second rotating ring; 45. first limiting groove; 46. second limiting groove; 5. first rotating turbine; 51. first driving block; 52. first thermal spring; 61. first driving rod; 62. first linkage rod; 63. first driving groove; 71. limiting outer ring; 72. limiting inner ring; 73. limiting gap; 8. second rotating turbine; 81. second driving block; 82. second thermal spring; 91. second driving rod; 92. second linkage rod; 93. second driving groove; 94. connecting rod. DETAILED DESCRIPTION

[0031] The present invention is further described with reference to the following examples.

[0032] Depend on Figures 1 to 8 It can be seen that the elbow flowmeter easy to maintain described in this embodiment includes an inlet pipe body 1, an elbow body 2, and a water outlet pipe body 3; one end of the elbow body 2 is connected to the inlet pipe body 1; the other end of the elbow body 2 is connected to the outlet pipe body 3; the upper differential pressure sensor 21 and the lower differential pressure sensor 22 are arranged opposite to the elbow body 2;

[0033] A first rotating ring 41 is rotatably provided at one end of the curved tube body 2; the first rotating ring 41 is provided with a first cleaning strip 42 and a second cleaning strip 43; the first cleaning strip 42 and the second cleaning strip 43 respectively abut against the inner wall of the curved tube body 2;

[0034] The water inlet pipe body 1 is provided with a first fixed ring 11; the first fixed ring 11 is rotatably provided with a first rotating turbine 5; a first linkage component is provided between the first rotating turbine 5 and the first rotating ring 41; the first rotating turbine 5 drives the first rotating ring 41 to rotate through the first linkage component; wherein the outer diameter of the first rotating ring 41 is the same as the outer diameter of the first fixed ring 11, and the inner diameter of the first rotating ring 41 is the same as the inner diameter of the first fixed ring 11, the center of the first rotating ring 41 is arranged opposite to the center of the first fixed ring 11, and the center of the first rotating turbine 5 is eccentric to the center of the first fixed ring 11.

[0035] Specifically, the easy-to-maintain elbow flowmeter of this embodiment, when in use, the liquid sequentially passes through the water inlet pipe body 1, the elbow body 2, and the water outlet pipe body 3. When the liquid passes through the elbow body 2, the upper differential pressure sensor 21 and the lower differential pressure sensor 22 arranged opposite to each other are used to measure the flow rate of the liquid.

[0036] When the liquid passes through the first fixed ring 11, the liquid impacts the first rotating turbine 5. Since the first rotating turbine 5 is provided with inclined blades, the impact of the liquid causes the first rotating turbine 5 to rotate. During the rotation of the first rotating turbine 5, the first rotating ring 41 is driven to rotate through the first linkage assembly. The rotation of the first rotating ring 41 causes the first cleaning strip 42 and the second cleaning strip 43 to move respectively against the inner wall of the curved pipe body 2, thereby cleaning the inner wall of the curved pipe body 2, achieving continuous scraping and cleaning of the deposits on the inner wall of the curved pipe body 2, effectively preventing scaling and clogging, and improving measurement stability.

[0037] In the embodiment of the present invention, a maintenance-friendly elbow flowmeter is provided. The first linkage assembly includes a first drive rod 61 and a first linkage rod 62. One end of the first drive rod 61 is hinged to the first fixing ring 11. One end of the first linkage rod 62 is fixedly connected to the first rotating ring 41. The other end of the first drive rod 61 is telescopically movably disposed at the other end of the first linkage rod 62.

[0038] The first driving rod 61 is provided with a first driving groove 63 along the length direction; the first rotating turbine 5 is provided with a first driving block 51; the first driving block 51 is slidably provided in the first driving groove 63; wherein the first driving block 51 is provided on the outer peripheral surface of the first rotating turbine 5.

[0039] Specifically, in this embodiment, through the above-mentioned arrangement, when the impact of the liquid causes the first rotating turbine 5 to rotate, the first driving block 51 moves in the first driving groove 63, and since one end of the first driving rod 61 is hinged to the first fixed ring 11, one end of the first linkage rod 62 is fixedly connected to the first rotating ring 41, and the other end of the first driving rod 61 is telescopically movably arranged at the other end of the first linkage rod 62, when the first rotating turbine 5 rotates continuously, it can drive the first driving rod 61 to swing back and forth along the hinge point with the first fixed ring 11, that is, it can drive the first rotating ring 41 to rotate back and forth, so that the first cleaning strip 42 and the second cleaning strip 43 are respectively moved along the inner wall of the curved pipe body 2, thereby cleaning the inner wall of the curved pipe body 2, and continuously scraping and cleaning the deposits on the inner wall of the curved pipe body 2, effectively preventing scaling and blockage, and improving measurement stability.

[0040] The embodiment described is a bend flowmeter that is easy to maintain, in which one end of the first cleaning strip 42 and one end of the second cleaning strip 43 are symmetrically arranged on the first rotating ring 41; the first driving block 51 is movably arranged on the first rotating turbine 5; and a first thermal spring 52 is provided between the first driving block 51 and the first rotating turbine 5.

[0041] Specifically, since the upper differential pressure sensor 21 and the lower differential pressure sensor 22 are disposed opposite each other in the bent pipe body 2, in order to prevent the upper differential pressure sensor 21 and the lower differential pressure sensor 22 from affecting their measurements, it is necessary to prevent the first cleaning strip 42 and the second cleaning strip 43 from touching the upper differential pressure sensor 21 and the lower differential pressure sensor 22 during normal use;

[0042] In this embodiment, a first thermal spring 52 is arranged between the first driving block 51 and the first rotating turbine 5. The first thermal spring 52 has the characteristic of expanding when heated. During normal use, the temperature of the liquid is low, the extension of the first thermal spring 52 is small, and the distance between the first driving block 51 and the center of the first rotating turbine 5 is close, so that the reciprocating swing angle of the first driving rod 61 is small, and the reciprocating rotation angle of the first rotating ring 41 is small, so that the first cleaning strip 42 and the second cleaning strip 43 do not touch the upper pressure difference sensor 21 and the lower pressure difference sensor 22 when cleaning the inner wall of the bent pipe body 2.

[0043] When the bent pipe body 2 needs to be completely cleaned, hot water is passed into the water inlet pipe body 1, and the first thermal spring 52 stretches after being heated, so that the distance between the first driving block 51 and the center of the first rotating turbine 5 is farther, so that the reciprocating swing angle of the first driving rod 61 is larger, and the reciprocating rotation angle of the first rotating ring 41 is larger, so that the first cleaning strip 42 and the second cleaning strip 43 can touch the upper pressure difference sensor 21 and the lower pressure difference sensor 22 when cleaning the inner wall of the bent pipe body 2, thereby completely cleaning it.

[0044] In this embodiment of the easy-to-maintain elbow flowmeter, one end of the first cleaning strip 42 and one end of the second cleaning strip 43 are rotatably mounted on a first rotating ring 41. A friction ring 23 is provided on the inner wall of one end of the elbow body 2. One end of the first cleaning strip 42 and one end of the second cleaning strip 43 abut against the friction ring 23. This arrangement allows the reciprocating rotation of the first rotating ring 41 to drive the first cleaning strip 42 and the second cleaning strip 43 to rotate, thereby improving the cleaning effect.

[0045] In this embodiment, a maintenance-friendly elbow flowmeter is described. An outer limiting ring 71 is provided on the inner wall of the elbow body 2. An inner limiting ring 72 rotates within the outer limiting ring 71. A limiting gap 73 is formed between the outer limiting ring 71 and the inner limiting ring 72. The middle portions of the first cleaning strip 42 and the second cleaning strip 43 are respectively located within the limiting gap 73. This arrangement ensures that the first cleaning strip 42 and the second cleaning strip 43 adhere closely to the inner wall of the elbow body 2.

[0046] In the embodiment of the elbow flowmeter for easy maintenance, the first cleaning strip 42 and the second cleaning strip 43 are both wire brushes. The wire brushes have good elasticity and wear resistance, and the bristles attached to the outside can effectively clean the inner wall of the elbow body 2.

[0047] In this embodiment of the easy-to-maintain elbow flowmeter, a second rotating ring 44 is rotatably mounted on the other end of the elbow body 2. A first retaining groove 45 and a second retaining groove 46 are formed between the outer wall of the second rotating ring 44 and the inner wall of the elbow body 2. The other end of the first cleaning strip 42 is inserted through the first retaining groove 45, and the other end of the second cleaning strip 43 is inserted through the second retaining groove 46. Specifically, this arrangement allows the first and second cleaning strips 42 and 43 to adhere closely to the inner wall of the elbow body 2.

[0048] The embodiment described is a bend flowmeter that is easy to maintain, wherein the water outlet pipe body 3 is provided with a second fixed ring 31; the second fixed ring 31 is provided with a second rotating turbine 8 for rotation; a second linkage assembly is provided between the second rotating turbine 8 and the second rotating ring 44; the second rotating turbine 8 drives the second rotating ring 44 to rotate through the second linkage assembly. The embodiment described in this embodiment is a bend flowmeter that is easy to maintain, and the second linkage assembly includes a second drive rod 91 and a second linkage rod 92; one end of the second drive rod 91 is hinged to the second fixed ring 31; a connecting rod 94 is fixed between one end of the second linkage rod 92 and the second rotating ring 44; the other end of the second drive rod 91 is telescopically movably arranged at the other end of the second linkage rod 92; the second drive rod 91 is provided with a second drive groove 93 along the length direction; the second rotating turbine 8 is provided with a second drive block 81; the second drive block 81 is slidably arranged in the second drive groove 93; wherein the outer diameter of the second rotating ring 44 is the same as the outer diameter of the second fixed ring 31, and the inner diameter of the second rotating ring 44 is the same as the inner diameter of the second fixed ring 31, the center of the second rotating ring 44 is arranged opposite to the center of the second fixed ring 31, and the center of the second rotating turbine 8 is eccentric to the center of the second fixed ring 31.

[0049] Specifically, in this embodiment, the first fixed ring 11 and the second fixed ring 31 have the same structure, the first rotating turbine 5 and the second rotating turbine 8 have the same structure, and the first linkage assembly and the second linkage assembly have the same structure. That is, when the liquid impacts the second rotating turbine 8, the second rotating ring 44 and the first rotating ring 41 can rotate back and forth synchronously, so that the two ends of the first cleaning strip 42 move synchronously, and the two ends of the second cleaning strip 43 move synchronously to prevent entanglement.

[0050] The embodiment of the present invention describes a bend flowmeter that is easy to maintain, wherein the first limiting groove 45 and the second limiting groove 46 are symmetrically arranged; the second driving block 81 is movably arranged on the second rotating turbine 8; and a second thermal spring 82 is provided between the second driving block 81 and the second rotating turbine 8.

[0051] Specifically, the second driving block 81 has the same structure as the first driving block 51, and the second thermistor spring 82 has the same structure as the first thermistor spring 52. Through the above arrangement, the second rotating ring 44 and the first rotating ring 41 can rotate back and forth synchronously, so that the two ends of the first cleaning bar 42 move synchronously, and the two ends of the second cleaning bar 43 move synchronously to prevent entanglement.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A bend pipe flowmeter that is easy to maintain, characterized by: It comprises a water inlet pipe body (1), a curved pipe body (2) and a water outlet pipe body (3); one end of the curved pipe body (2) is in communication with the water inlet pipe body (1); the other end of the curved pipe body (2) is in communication with the water outlet pipe body (3); an upper pressure difference sensor (21) and a lower pressure difference sensor (22) are provided opposite to the curved pipe body (2); A first rotating ring (41) is rotatably provided at one end of the curved tube body (2); the first rotating ring (41) is provided with a first cleaning strip (42) and a second cleaning strip (43); the first cleaning strip (42) and the second cleaning strip (43) respectively abut against the inner wall of the curved tube body (2); The water inlet pipe body (1) is provided with a first fixed ring (11); the first fixed ring (11) is provided with a first rotating turbine (5) when rotating; a first linkage assembly is provided between the first rotating turbine (5) and the first rotating ring (41); the first rotating turbine (5) drives the first rotating ring (41) to rotate through the first linkage assembly; The first linkage assembly comprises a first driving rod (61) and a first linkage rod (62); one end of the first driving rod (61) is hinged to the first fixed ring (11); one end of the first linkage rod (62) is fixedly connected to the first rotating ring (41); the other end of the first driving rod (61) is telescopically movably arranged at the other end of the first linkage rod (62); The first driving rod (61) is provided with a first driving groove (63) along the length direction; the first rotating turbine (5) is provided with a first driving block (51); the first driving block (51) is slidably arranged in the first driving groove (63); One end of the first cleaning strip (42) and one end of the second cleaning strip (43) are symmetrically arranged on the first rotating ring (41); The first driving block (51) is movably arranged on the first rotating turbine (5); a first thermal spring (52) is arranged between the first driving block (51) and the first rotating turbine (5); The inner wall of the curved tube body (2) is provided with a limiting outer ring (71); a limiting inner ring (72) is provided in rotation inside the limiting outer ring (71); a limiting gap (73) is formed between the limiting outer ring (71) and the limiting inner ring (72); the middle portion of the first cleaning strip (42) and the middle portion of the second cleaning strip (43) are respectively provided in the limiting gap (73); The other end of the curved tube body (2) is rotatably provided with a second rotating ring (44); a first limiting groove (45) and a second limiting groove (46) are formed between the outer wall of the second rotating ring (44) and the inner wall of the curved tube body (2); the other end of the first cleaning strip (42) is passed through the first limiting groove (45); and the other end of the second cleaning strip (43) is passed through the second limiting groove (46).

2. The elbow flowmeter easy to maintain according to claim 1, characterized in that: One end of the first cleaning strip (42) and one end of the second cleaning strip (43) are respectively rotatably arranged on the first rotating ring (41); a friction ring (23) is provided on the inner wall of one end of the curved tube body (2); one end of the first cleaning strip (42) and one end of the second cleaning strip (43) are respectively in contact with the friction ring (23).

3. The elbow flowmeter easy to maintain according to claim 1, characterized in that: The first cleaning bar (42) and the second cleaning bar (43) are both wire brushes.

4. The elbow flowmeter easy to maintain according to claim 1, characterized in that: The water outlet pipe body (3) is provided with a second fixed ring (31); the second fixed ring (31) is rotatably provided with a second rotating turbine (8); a second linkage assembly is provided between the second rotating turbine (8) and the second rotating ring (44); the second rotating turbine (8) drives the second rotating ring (44) to rotate via the second linkage assembly.

5. The elbow flowmeter easy to maintain according to claim 4, characterized in that: The second linkage assembly comprises a second driving rod (91) and a second linkage rod (92); one end of the second driving rod (91) is hinged to the second fixed ring (31); a connecting rod (94) is fixedly provided between one end of the second linkage rod (92) and the second rotating ring (44); the other end of the second driving rod (91) is telescopically movably provided at the other end of the second linkage rod (92); The second driving rod (91) is provided with a second driving groove (93) along the length direction; the second rotating turbine (8) is provided with a second driving block (81); the second driving block (81) is slidably arranged in the second driving groove (93).

6. The elbow flowmeter easy to maintain according to claim 5, characterized in that: The first limiting groove (45) and the second limiting groove (46) are symmetrically arranged; The second driving block (81) is movably arranged on the second rotating turbine (8); a second thermal spring (82) is arranged between the second driving block (81) and the second rotating turbine (8).

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