A non-contact speed-adjustable slurry circulation pump system

Abstract

The present invention discloses a non-contact adjustable speed slurry circulation pump system, which relates to the field of circulation pumps and includes a pump body, wherein the pump body is provided with an outlet pipe, and a connecting pipe is installed at the end of the outlet pipe. The outer ring of the outlet pipe is fixed with a mounting block by bolts, and the outlet pipe and the connecting pipe can be installed by the mounting block. The pump body also includes: a snap assembly; a toggle assembly; a sealing assembly; and a quick-install positioning assembly. The present invention drives a pull rope to be reeled by twisting a circular ring. In this way, during the process of rotating and reeling the pull rope, the pull rope pulls the clamping block to move, and the clamping block rotates around a fixed rod and leaves the original clamping groove. This facilitates the removal of the connecting pipe from the outlet pipe. When a new connecting pipe is subsequently installed, the circular ring is rotated in the opposite direction. At this time, the clamping block gradually loses the tension of the pull rope, and a torsion spring causes the clamping block to reset and match the clamping groove reserved in the new connecting pipe, thus completing the installation. The device requires fewer turns of the operating knob, and is relatively convenient to implement overall.

Description

Technical Field

[0001] The invention relates to the field of circulation pumps, and in particular to a non-contact speed-adjustable slurry circulation pump system. Background Art

[0002] The slurry circulation pump is one of the most important equipment in the desulfurization system of a thermal power plant. The function of the slurry circulation pump is to circulate the slurry in the slurry pool of the absorption tower through the nozzle and provide energy for producing slurry droplets with fine particles and high reaction activity. The main function is to continuously circulate the slurry in the absorption tower so that the sulfur dioxide in the flue gas can be completely absorbed.

[0003] The existing Chinese patent publication number is: CN212744487U, which discloses a slurry circulation pump with a speed regulator, including a pump body, a connecting mechanism and a sealing mechanism, wherein an outlet pipe is fixedly installed on one side of the top end of the pump body, and a connecting pipe is provided on the top end of the outlet pipe. The connecting mechanism includes a screw, the screw is at the outer top end of the connecting pipe, and a locking nut is sleeved on the outer top end of the screw, and a first U-shaped groove is provided at the outer bottom end of the connecting pipe, and a second U-shaped groove is provided at the outer top end of the outlet pipe. The bottom end of the screw passes through the inner side of the first U-shaped groove and is located in the inner side of the second U-shaped groove, and a rotating groove is provided inside the second U-shaped groove; compared with the prior art, the beneficial effects of the utility model are as follows: by designing the connecting mechanism, the outlet pipe is conveniently connected to the connecting pipe, the structure is simple, the operation is convenient, the stability is good, the installation and disassembly are convenient, the work intensity of the staff is reduced, and a rubber pad is added at the connection between the outlet pipe and the connecting pipe to improve the sealing and prevent the problem of leakage;

[0004] For example, the existing Chinese patent publication number is: CN116877451A, which discloses a slurry circulation pump speed control device, including a water inlet pipe, a fan blade is arranged inside the water inlet pipe, the fan blade is connected to a rotating shaft, the rotating shaft is connected to a support member, one end of the support member is fixedly connected to the inside of the water inlet pipe, the support member is provided in several groups, the rotating shaft is connected to an adjustment member, the adjustment member includes a connecting member arranged at one end of the rotating shaft, one side of the connecting member is connected to a connecting column, and one side of the connecting column is connected to a sliding member. The flow rate of the slurry can be measured by the speed measuring mechanism, so that when the slurry flow rate is fast, the speed control mechanism makes the speed of the slurry circulation pump faster, and when the slurry flow rate is slow, the speed control mechanism makes the speed of the slurry circulation pump slower, thereby making the slurry output stable, thereby effectively preventing energy waste and the occurrence of problems such as a large amount of surplus desulfurization slurry.

[0005] The above-mentioned slurry circulation pump has the following problems when in use: the above-mentioned slurry circulation pump needs to be connected to the pipeline by twisting the locking nut multiple times, and the twisting nut also requires tools to assist, which makes the installation process more complicated.

[0006] Therefore, it is necessary to invent a non-contact speed-adjustable slurry circulation pump system to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to provide a non-contact adjustable speed slurry circulation pump system to solve the problem proposed in the above background technology that the above-mentioned slurry circulation pump needs to be connected to the pipeline through multiple twisting of the locking nut, and the twisting nut also requires tools to assist, which makes the installation process more cumbersome.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a non-contact adjustable speed slurry circulation pump system, comprising a pump body, the pump body being provided with an outlet pipe, and a connecting pipe being installed at the end of the outlet pipe, the outer ring of the outlet pipe being fixed with a mounting block by bolts, and the outlet pipe and the connecting pipe being installed by the mounting block, and further comprising:

[0009] The snap assembly has a notch reserved inside the mounting block, and a fixing rod is fixedly connected to the inner wall of the notch. A clamping block is rotatably connected to the notch through the fixing rod. The end of the clamping block matches the clamping groove, and the clamping groove is located inside the connecting pipe. The installation of the outlet pipe and the connecting pipe is completed by matching the clamping block rotatably connected by the torsion spring inside the mounting block with the clamping groove reserved inside the connecting pipe.

[0010] The toggle assembly has a threaded outer ring of the outlet pipe, and the threaded outer ring is threadedly connected to a ring, and a pull rope is fixedly connected to the top of the ring. The pull rope passes through the wire groove reserved inside the mounting block and is fixedly connected to the protrusion fixedly connected to the side wall of the card block, so that the four groups of card blocks can be driven to move synchronously after the ring is rotated, thereby facilitating the installation of the outlet pipe and the connecting pipe;

[0011] A sealing assembly is provided, wherein a sealing gasket is fixedly connected to the pipe opening at the lower end of the connecting pipe, and the sealing gasket matches the sealing notch reserved inside the outlet pipe to ensure the sealing of the connection between the outlet pipe and the connecting pipe;

[0012] A quick-install positioning assembly, wherein the outer wall of the connecting pipe is fixedly connected with a positioning block and the positioning block matches the positioning groove reserved inside the mounting block, thereby ensuring quick installation of the outlet pipe and the connecting pipe.

[0013] Preferably, there are four notches, which are distributed in a circular shape at equal angles on the edge of the upper end of the mounting block, ensuring that the block has sufficient space for movement to facilitate the movement of the block.

[0014] Preferably, the fixing rod passes through the lower end of the clamping block, and the fixing rod and the through-opening of the lower end of the clamping block are rotatably connected via a bearing;

[0015] The outer ring movable sleeve of the fixed rod is provided with a torsion spring, and the two ends of the torsion spring are fixedly connected to the outer wall of the clamping block and the inner wall of the notch respectively. Under the restoring force of the torsion spring, the clamping block is easily driven to realize the reset movement after the movement, thereby completing the installation of the outlet pipe and the connecting pipe.

[0016] Preferably, the card block is in the shape of a mirrored "7", and there are four card blocks in number. The four card blocks are distributed in a ring at equal angles, and the positions of the four card blocks correspond to the positions of the four buckle grooves reserved inside the connecting pipe. The movement of the card block matches the buckle groove, so that the installation of the outlet pipe and the connecting pipe can be realized.

[0017] Preferably, the sealing gasket is composed of an annular gasket and a barrel-shaped gasket fixedly connected, and the annular gasket fits with the top wall of the pipe opening at the upper end of the outlet pipe, and the barrel-shaped gasket fits with the sealing groove to ensure the sealing of the connection installation between the outlet pipe and the connecting pipe.

[0018] Preferably, a flocking pad is fixedly connected to the inner ring of the wire groove, so that the friction damage between the pull rope and the wire groove is reduced when the pull rope moves, thereby extending the service life of the pull rope.

[0019] Preferably, there are four positioning blocks in number, and the four positioning blocks are distributed in a ring at equal angles, and four positioning grooves matching the four positioning blocks are arranged inside the mounting block with a 45-degree deviation from the four notches. The positioning grooves and the notches are not connected to each other, and the tops of the positioning grooves are open. The positioning blocks fixedly connected to the outer wall of the connecting pipe are aligned with the positioning grooves. After the connecting pipe is inserted into the mounting block, the clamping block can always correspond to the position of the buckle groove, so that the outlet pipe and the connecting pipe can be quickly installed later.

[0020] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0021] The present invention twists the circular ring, and the circular ring threadedly connected to the outlet pipe reels in the process of being turned. In this way, during the process of the pull rope being rotated and rewound, the clamping block is pulled by the pull rope to move, and the clamping block rotates around the fixed rod to leave the original clamping groove, which makes it convenient to disassemble the connecting pipe and the outlet pipe. When a new connecting pipe is subsequently installed, the circular ring is rotated in the opposite direction. At this time, the clamping block gradually loses the tension of the pull rope, and the torsion spring prompts the clamping block to reset and match the clamping groove reserved inside the new connecting pipe, thereby completing the matching installation of the outlet pipe and the connecting pipe. The device requires fewer turns of the operating knob, and is more convenient to implement as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0024] Figure 2 This is a three-dimensional diagram of the installation structure of the connecting pipe and the outlet pipe of the present invention;

[0025] Figure 3 This is an exploded view of the installation structure of the connecting pipe and the outlet pipe of the present invention;

[0026] Figure 4 An exploded view of the connection structure of the outlet pipe (partially cut away), the connecting pipe, and the sealing assembly of the present invention;

[0027] Figure 5 A perspective view of the internal structure of the mounting block (partially cut away) of the present invention;

[0028] Figure 6 It is a three-dimensional diagram of the overall structure of the mounting block of the present invention.

[0029] Description of reference numerals:

[0030] 1. Pump body; 2. Outlet pipe; 3. Connecting pipe; 4. Mounting block; 5. Bolt; 6. Clip assembly; 61. Notch; 62. Fixing rod; 63. Clip block; 64. Clip groove; 7. Toggle assembly; 71. Thread; 72. Ring; 73. Pull rope; 74. Wire trough; 75. Bump; 8. Sealing assembly; 81. Sealing gasket; 82. Sealing notch; 9. Quick-release positioning assembly; 91. Positioning block; 92. Positioning groove. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] The present invention provides Figure 1-6 The non-contact adjustable speed slurry circulation pump system shown includes a pump body 1, an outlet pipe 2 is provided on the pump body 1, and a connecting pipe 3 is installed at the end of the outlet pipe 2. The outer ring of the outlet pipe 2 is fixed with a mounting block 4 by bolts 5. The mounting block 4 can be used to achieve the installation of the outlet pipe 2 and the connecting pipe 3. The system also includes:

[0033] The buckle assembly 6 has a notch 61 reserved inside the mounting block 4, and a fixing rod 62 is fixedly connected to the inner wall of the notch 61. A clamping block 63 is rotatably connected to the inside of the notch 61 through the fixing rod 62. The end of the clamping block 63 matches the buckle groove 64, and the buckle groove 64 is located inside the connecting pipe 3. The installation of the outlet pipe 2 and the connecting pipe 3 is completed by matching the clamping block 63 rotatably connected by the torsion spring inside the mounting block 4 with the buckle groove 64 reserved inside the connecting pipe 3.

[0034] The toggle assembly 7 has a thread 71 on the outer ring of the outlet pipe 2, and a ring 72 is threadedly connected to the outer ring of the thread 71, and a pull rope 73 is fixedly connected to the top of the ring 72. The pull rope 73 passes through the wire groove 74 reserved inside the mounting block 4 and is fixedly connected to the protrusion 75 fixedly connected to the side wall of the clamping block 63, so that the four groups of clamping blocks 63 can be driven to move synchronously after rotating the ring 72, thereby facilitating the installation of the outlet pipe 2 and the connecting pipe 3.

[0035] The sealing component 8 is fixedly connected to the lower end of the connecting pipe 3 with a sealing gasket 81, and the sealing gasket 81 matches the sealing notch 82 reserved inside the outlet pipe 2 to ensure the sealing of the connection between the outlet pipe 2 and the connecting pipe 3;

[0036] The quick-install positioning assembly 9 has a positioning block 91 fixedly connected to the outer wall of the connecting pipe 3 and the positioning block 91 matches the positioning groove 92 reserved inside the mounting block 4, ensuring the quick installation of the outlet pipe 2 and the connecting pipe 3.

[0037] There are four notches 61 , which are distributed in a circular pattern at equal angles on the upper edge of the mounting block 4 , ensuring sufficient space for the clamping blocks 63 to facilitate the movement of the four groups of clamping blocks 63 .

[0038] The fixing rod 62 passes through the lower end of the clamping block 63, and the fixing rod 62 and the lower end of the clamping block 63 are rotatably connected through a bearing;

[0039] The outer ring movable sleeve of the fixing rod 62 is provided with a torsion spring, and the two ends of the torsion spring are fixedly connected to the outer wall of the clamping block 63 and the inner wall of the notch 61 respectively. Under the restoring force of the torsion spring, the clamping block 63 is easily driven to realize the reset movement after movement, thereby completing the installation of the outlet pipe 2 and the connecting pipe 3.

[0040] The clamping block 63 is in the shape of a mirrored "7", and there are four clamping blocks 63. The four clamping blocks 63 are distributed in a ring at equal angles, and the positions of the four clamping blocks 63 correspond to the positions of the four buckle grooves 64 reserved inside the connecting pipe 3. The movement of the clamping blocks 63 matches the buckle grooves 64 to realize the installation of the outlet pipe 2 and the connecting pipe 3. At the same time, the four groups of clamping blocks 63 restrict the installation of the outlet pipe 2 and the connecting pipe 3 in all directions, thereby ensuring that the installation of the outlet pipe 2 and the connecting pipe 3 is more secure.

[0041] The sealing gasket 81 is composed of an annular gasket and a barrel-shaped gasket fixedly connected, and the annular gasket fits against the top wall of the pipe opening at the upper end of the outlet pipe 2, and the barrel-shaped gasket fits against the sealing groove 82, ensuring the sealing of the connection installation between the outlet pipe 2 and the connecting pipe 3.

[0042] The inner circle of the wire groove 74 is fixedly connected with a flocking pad, so that when the pull rope 73 moves, the friction damage between the wire groove 74 is small, thereby extending the service life of the pull rope 73.

[0043] There are four positioning blocks 91, and the four positioning blocks 91 are distributed in a ring at equal angles, and the four positioning grooves 92 matching the four positioning blocks 91 are arranged inside the mounting block 4 at a 45-degree deviation from the four notches 61. The positioning grooves 92 and the notches 61 are not connected to each other. At the same time, the top of the positioning groove 92 is open. The positioning block 91 fixedly connected to the outer wall of the connecting pipe 3 is aligned with the positioning groove 92. After the connecting pipe 3 is inserted into the mounting block 4, the clamping block 63 can always correspond to the position of the buckle groove 64, so that the outlet pipe 2 and the connecting pipe 3 can be quickly installed later.

[0044] Working principle: When using a non-contact adjustable-speed slurry circulation pump system, when replacing the device with the connecting pipe 3, by twisting the ring 72, the ring 72 threadedly connected to the outlet pipe 2 is turned to toggle and reel the pull rope 73 fixedly connected to the outer wall of the ring 72 during the knob turning process, and the pull rope 73 then pulls the protrusion 75 fixedly connected to the pull rope 73 and the movement of the clamping block 63 fixedly connected to the protrusion 75. The downward pulling force of the pull rope 73 pulls the clamping block 63 to rotate around the fixed rod 62 and leave the original clamping groove 64. The four groups of clamping blocks 63 move synchronously to leave the clamping groove 64, which makes it convenient to disassemble the connecting pipe 3 and the outlet pipe 2. The synchronous movement of the four groups of clamping blocks 63 can also ensure the efficiency of disassembly and assembly;

[0045] When it is necessary to connect the device with a new connecting pipe 3, repeat the above steps to twist the ring 72 so that the four groups of clamping blocks 63 are expanded, align the positioning block 91 fixedly connected to the outer wall of the connecting pipe 3 with the positioning groove 92, and insert the connecting pipe 3 into the interior of the installation block 4, and repeat the above steps to synchronously rotate the ring 72 in the opposite direction. At this time, the ring 72 gradually moves to reset, and at the same time, the clamping block 63 gradually loses the tension of the pull rope 73, and the torsion spring movably sleeved on the outer ring of the fixing rod 62 prompts the clamping block 63 to reset and match the buckle groove 64 reserved in the new connecting pipe 3, thus completing the matching installation of the outlet pipe 2 and the connecting pipe 3. At the same time, the four groups of clamping blocks 63 restrict the installation of the outlet pipe 2 and the connecting pipe 3 in all directions, thus ensuring that the installation of the outlet pipe 2 and the connecting pipe 3 is more secure. When the circulating pump is used later, the speed of the pump body 1 can be adjusted by the speed regulator external to the circulating pump (the speed regulator is an existing and relatively mature technology on the market, and its principle will not be repeated here);

[0046] When the components inside the subsequent mounting block 4 are damaged and the mounting block 4 needs to be replaced, the outlet pipe 2 and the connecting pipe 3 are first disassembled, and then the bolt 5 is twisted to separate the bolt 5 from the mounting block 4 and the outlet pipe 2. The knob ring 72 is then turned to make the ring 72 move upward. After the ring 72 moves upward and leaves the reserved section of thread 71, the mounting block 4 and the ring 72 can be directly pulled out. When installing the mounting block 4 subsequently, the ring 72 and the mounting block 4 can be successively sleeved on the outer ring of the outlet pipe 2 (the ring 72 is at the lower position of the mounting block 4), the mounting block 4 is connected to the outlet pipe 2 with the bolt 5, and the ring 72 is twisted to connect the ring 72 to the thread 71.

[0047] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A non-contact speed-adjustable slurry circulation pump system, comprising a pump body (1), characterized in that: The pump body (1) is provided with an outlet pipe (2), and a connecting pipe (3) is installed at the end of the outlet pipe (2). The outer ring of the outlet pipe (2) is installed with a mounting block (4) via bolts (5). The pump body (1) further comprises: A snap assembly (6), wherein a notch (61) is reserved on the mounting block (4), and a fixing rod (62) is fixedly connected to the inner wall of the notch (61), and a clamping block (63) is rotatably connected to the inside of the notch (61) through the fixing rod (62), and the end of the clamping block (63) matches the clamping groove (64), and the clamping groove (64) is located on the connecting pipe (3), and the fixing rod (62) passes through the lower end of the clamping block (63), and the fixing rod (62) and the lower end of the clamping block (63) are rotatably connected through the through-opening of the bearing, and the outer ring of the fixing rod (62) is provided with a torsion spring, and the two ends of the torsion spring are respectively fixedly connected to the outer wall of the clamping block (63) and the inner wall of the notch (61); The toggle assembly (7) is provided with a thread (71) on the outer ring of the outlet pipe (2), and the thread (71) is threadedly connected to a ring (72) on the outer ring, and a pull rope (73) is fixedly connected to the top of the ring (72), and the pull rope (73) passes through a wire groove (74) reserved on the mounting block (4) and is fixedly connected to a protrusion (75) fixedly connected to the side wall of the clamping block (63); A sealing assembly (8), wherein a sealing gasket (81) is fixedly connected to the pipe opening at the lower end of the connecting pipe (3), and the sealing gasket (81) matches the sealing notch (82) reserved at the upper end of the outlet pipe (2); A quick-install positioning assembly (9), wherein the outer wall of the connecting pipe (3) is fixedly connected with a positioning block (91), and the positioning block (91) matches a positioning groove (92) reserved inside the mounting block (4).

2. A non-contact speed-adjustable slurry circulation pump system according to claim 1, characterized in that: The notches (61) are provided at four locations, and the four notches (61) are distributed in a circular manner at equal angles at the edge of the upper end of the mounting block (4).

3. The non-contact speed-adjustable slurry circulation pump system according to claim 1, characterized in that: The clamping block (63) is in the shape of a "7", and there are four clamping blocks (63) in number. The four clamping blocks (63) are distributed in a ring at equal angles, and the positions of the four clamping blocks (63) correspond to the positions of the four buckle grooves (64) reserved on the connecting pipe (3).

4. The non-contact speed-adjustable slurry circulation pump system according to claim 1, characterized in that: The sealing gasket (81) is composed of an annular gasket and a barrel-shaped gasket fixedly connected, and the annular gasket is in contact with the top wall of the pipe opening at the upper end of the outlet pipe (2), and the barrel-shaped gasket is in contact with the sealing notch (82).

5. The non-contact speed-adjustable slurry circulation pump system according to claim 1, characterized in that: The inner ring of the wire groove (74) is fixedly connected with a flocking pad.

6. The non-contact speed-adjustable slurry circulation pump system according to claim 2, characterized in that: The number of the positioning blocks (91) is four, and the four positioning blocks (91) are distributed in a circular manner at equal angles, and four positioning grooves (92) matching the four positioning blocks (91) are arranged inside the mounting block (4) at a 45-degree deviation from the four notches (61). The positioning grooves (92) and the notches (61) are not connected to each other, and the tops of the positioning grooves (92) are open.

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