CN218624779U

CN218624779U - Lng submerged hydraulic drive pump

Info

Publication number: CN218624779U
Application number: CN202222741389.8U
Authority: CN
Inventors: 王海新
Original assignee: Liaoning Demengte Technology Co ltd
Current assignee: LIAONING TIANYUAN PUMP MANUFACTURE Co.,Ltd.
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-03-14
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses an Lng submerged hydraulic drive pump, including the pump main part, the bottom of pump main part is equipped with the installation diaphragm through the bolt bush, there is positioning mechanism all through bolted connection in the left and right sides of installation diaphragm bottom, positioning mechanism's inner chamber is pegged graft and is had the plugboard, controls and welds between two plugboards and have the protection housing, the plugboard is kept away from one side of protection housing and has been seted up the constant head tank, there is broken mechanism rear side through bolted connection, the four corners of protection housing has all welded supporting mechanism, positioning mechanism is including pegging graft the shell, and it has all welded the set casing to control two one side that the shell is opposite to peg graft. The utility model discloses a cooperation of protection housing, broken blade, broken motor and bull stick is used, possesses the broken advantage of the great material of volume, can carry out the breakage to the great material of volume in the suction protection housing, avoids covering the filter screen shell surface, influences normally to absorb water.

Description

Lng submerged hydraulic drive pump

Technical Field

The utility model relates to a LNG immersed pump technical field specifically is LNG immersed hydraulic drive pump.

Background

The LNG immersed pump is an immersed two-stage centrifugal pump, is wholly immersed in a pump pool, has no sealing piece, all moving parts are cooled and lubricated by low-temperature liquid, and has great advantages in the LNG industry due to the fact that the LNG immersed pump has a structure different from that of a traditional pump: the motor is not affected by moisture and corrosion, the insulation of the motor is not deteriorated due to temperature change, the motor and the impeller are designed on the same shaft, and the need of a coupler and centering is eliminated.

Patent application publication No. CN 213360455U's utility model discloses a and LNG immersed pump, including the casing, the casing periphery is fixed to be set up two shunt tubes along axial extension, sets up tertiary booster mechanism in the pump body intracavity, the impeller at all levels all with electric motor rotor's pivot circumference fixed connection, the guiding plates at all levels respectively with the pivot cooperation. The upper end cover comprises a hollow cylinder, a flange plate is arranged at the outlet of the hollow cylinder, the lower end of the hollow cylinder is fixedly connected with a connecting plate, two overflowing holes are formed in the connecting plate, the periphery of the hollow cylinder is rotationally symmetrical to be provided with two collecting pipes, the upstream end of each collecting pipe is communicated with the two overflowing holes in the connecting plate respectively, the downstream end of each collecting pipe is communicated with the inner cavity of the hollow cylinder, the arc transition section of each collecting pipe is connected with the overflowing holes in the connecting plate, the spiral bending section of each collecting pipe is connected with the liquid inlet hole of the hollow cylinder, fluid conveyed by the two flow dividing pipes flows into the inner cavity of the hollow cylinder along the circumference of the hollow cylinder in the tangential direction of the same rotating direction through the two collecting pipes, and the rotating flow is formed upwards and flows out from the outlet.

But above-mentioned device still has some shortcomings when in-service use, and it is comparatively obvious that Lng immersed liquid hydraulic drive pump bottom water inlet does not possess crushing function, because Lng immersed liquid hydraulic drive pump suction is great, adsorbs the great material of aquatic volume to the water inlet department of pump easily and causes the jam, can't carry out the breakage to the great material of volume like this, influences normal water absorption, and inconvenient dismouting to breaker has increased personnel working strength moreover.

Therefore, there is a need to develop Lng submersible hydraulically driven pumps to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an Lng dive hydraulic drive pump possesses crushing function, can carry out the breakage to the great material of area, avoids covering and inhales water in the influence of water inlet department, conveniently carries out the advantage of dismouting to breaker, has solved and has not possessed crushing function, causes the water inlet to block up easily, and is inconvenient to carry out the problem of dismouting to breaker.

In order to achieve the above object, the utility model provides a following technical scheme: lng latent liquid hydraulic drive pump, including the pump main part, the bottom of pump main part is equipped with the installation diaphragm through the bolt cover, all there is positioning mechanism the left and right sides of installation diaphragm bottom through bolted connection, positioning mechanism's inner chamber is pegged graft and is had the plugboard, controls and welds between two plugboards and have the protective housing shell, the plugboard is kept away from one side of protective housing shell and has been seted up the constant head tank, protective housing shell's rear side has broken mechanism through bolted connection, protective housing shell's four corners has all been welded and has been had supporting mechanism.

Preferably, positioning mechanism all welds the set casing including the plug-in shell in two opposite one sides of plug-in shell about, the inner chamber sliding connection of set casing has the slide, one side fixedly connected with pull rod and positioning spring respectively of plug-in shell are kept away from to the slide, one side fixedly connected with locating pin of pull rod is kept away from to the slide, one side that the slide was kept away from to the locating pin runs through the interlude and connects the shell and extend to the inner chamber of constant head tank.

Preferably, a chamfer is formed in one side, away from the sliding plate, of the positioning pin, and a pull plate is fixedly connected to one side, away from the sliding plate, of the pull rod.

Preferably, crushing mechanism includes broken motor, broken motor's output fixedly connected with bull stick, the front side of bull stick runs through the protective housing and passes through bearing swing joint with the front side of protective housing inner chamber, the fixed surface cover of bull stick is equipped with crushing blade.

Preferably, the supporting mechanism comprises a fixed transverse plate, a supporting column is welded at the bottom of the fixed transverse plate, and a supporting bottom plate is welded at the bottom of the supporting column.

Preferably, the top of the pump main body is communicated with a water outlet flange, and a water inlet at the bottom of the pump main body is connected with a filter screen shell through a bolt.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a cooperation of protection housing, broken blade, broken motor and bull stick is used, possesses the broken advantage of the great material of volume, can carry out the breakage to the great material of volume in the suction protection housing, avoids covering the filter screen shell surface, influences normally to absorb water.

2. The utility model discloses a cooperation of grafting shell, locating pin, pull rod, positioning spring and constant head tank is used, possesses the advantage that the convenience carries out the dismouting to the protection housing, need not install fixedly through the bolt again, has alleviateed personnel working strength, improves dismouting efficiency.

Drawings

FIG. 1 is an isometric view of the structure of the present invention;

FIG. 2 is a bottom perspective view of the structure of the present invention;

FIG. 3 is an isometric view of a partial structure of the present invention;

FIG. 4 is an enlarged view of A in FIG. 3 according to the present invention;

fig. 5 is a perspective view of the local structure of the present invention.

In the figure: 1 pump main part, 2 play water flange, 3 installation diaphragm, 4 broken mechanisms, 5 positioning mechanism, 6 supporting mechanism, 7 supporting baseplate, 8 support columns, 9 fixed diaphragm, 10 protective housing, 11 broken blade, 12 broken motors, 13 bull stick, 14 plugboard, 15 filter screen shell, 16 pluging shell, 17 locating pins, 18 pull rods, 19 pull plates, 20 locating spring, 21 slide, 22 fixed shell, 23 constant head tank.

Detailed Description

Referring to fig. 1-5, the lng submerged hydraulic drive pump comprises a pump main body 1, wherein a mounting transverse plate 3 is sleeved at the bottom of the pump main body 1 through bolts, the left side and the right side of the bottom of the mounting transverse plate 3 are both connected with positioning mechanisms 5 through bolts, insertion plates 14 are inserted into inner cavities of the positioning mechanisms 5, a protective housing 10 is welded between the left insertion plate 14 and the right insertion plate 14, a positioning groove 23 is formed in one side, away from the protective housing 10, of each insertion plate 14, the rear side of the protective housing 10 is connected with a crushing mechanism 4 through bolts, and supporting mechanisms 6 are welded at four corners of the protective housing 10;

the positioning mechanism 5 comprises a plug-in shell 16, a fixed shell 22 is welded on one opposite side of each of a left plug-in shell 16 and a right plug-in shell 16, a sliding plate 21 is connected to the inner cavity of each fixed shell 22 in a sliding mode, a pull rod 18 and a positioning spring 20 are fixedly connected to one side, far away from the plug-in shell 16, of the sliding plate 21 respectively, a positioning pin 17 is fixedly connected to one side, far away from the pull rod 18, of the sliding plate 21, one side, far away from the sliding plate 21, of each positioning pin 17 penetrates through the plug-in shell 16 and extends to the inner cavity of the positioning groove 23, and by arranging the positioning springs 20, the positioning mechanism has the function of pushing the positioning pins 17 to be inserted into the positioning grooves 23 and solves the problem of preventing the positioning pins 17 from sliding out of the positioning grooves 23;

a chamfer is formed in one side, away from the sliding plate 21, of the positioning pin 17, a pull plate 19 is fixedly connected to one side, away from the sliding plate 21, of the pull rod 18, and through the chamfer, the positioning pin 17 can be conveniently inserted into the positioning groove 23, and the problem that the insertion plate 14 cannot push the positioning pin 17 to move is solved;

the crushing mechanism 4 comprises a crushing motor 12, an output end of the crushing motor 12 is fixedly connected with a rotating rod 13, the front side of the rotating rod 13 penetrates through the protective housing 10 and is movably connected with the front side of an inner cavity of the protective housing 10 through a bearing, a crushing blade 11 is fixedly sleeved on the surface of the rotating rod 13 in a fixing mode, the function of facilitating installation and rotation of the rotating rod 13 is achieved through the arrangement of the bearing, and the problem that the rotating rod 13 cannot rotate is solved;

the supporting mechanism 6 comprises a fixed transverse plate 9, a supporting column 8 is welded at the bottom of the fixed transverse plate 9, a supporting bottom plate 7 is welded at the bottom of the supporting column 8, and the supporting column 8 is arranged, so that the supporting mechanism has a function of supporting the protective housing 10, and the problem that the bottom of the protective housing 10 is blocked is solved;

the top intercommunication of pump main part 1 has a water flange 2, and the water inlet of pump main part 1 bottom has filter screen shell 15 through bolted connection, strains screen shell 15 through setting up, possesses the function of filtering impurity, has solved the problem that impurity got into in the pump.

The positioning spring 20 is a compression spring, is a helical spring bearing a normal pressure, and the section of the material used by the positioning spring is mostly circular, and is also coiled by rectangular and multi-strand steel wires, the spring is generally equidistant, and the shape of the compression spring is as follows: the compression spring is cylindrical, conical, convex and concave, and a small number of non-circular shapes, and the like, a certain gap is reserved between the rings of the compression spring, and the compression spring contracts and deforms when subjected to external load, so that deformation energy is stored.

When the device is used, when the protective housing 10 needs to be installed on the installation transverse plate 3, the insertion plates 14 at the tops of the left side and the right side of the protective housing 10 are aligned to the left insertion housing 16 and the right insertion housing 16 from the lower side, and then are pushed upwards forcibly, when the insertion plates 14 are completely pushed into the insertion housings 16, the positioning springs 20 release elasticity to push the positioning pins 17 through the sliding plates 21 to be inserted into the positioning grooves 23, so that the installation of the protective housing 10 is completed, then the crushing motor 12 is connected onto a circuit of the device, the crushing motor 12 is controlled to work to drive the crushing blades 11 on the surfaces of the rotating rods 13 to rotate, when the pump body 1 works to suck substances into the protective housing 10, the rotating crushing blades 11 crush the substances with larger size, the crushed substances are reduced in size, so that the crushed substances cannot cover the surfaces of the filter screen housing 15, the blockage of a water inlet of the pump body 1 is avoided, normal water absorption is ensured, when the protective housing 10 needs to be disassembled, the pull rods 18 are pulled towards the two sides, the pull rods 18 drive the positioning pins 17 to move out of the positioning grooves 23 through the sliding plates 21, then the protective housing 10 is pulled downwards, and the insertion plates 14 are conveniently disassembled, and the disassembly and the protective housing 10 is more convenient.

In summary, the following steps: this Lng submerged liquid hydraulic drive pump uses through the cooperation of protective housing 10, broken blade 11, broken motor 12, bull stick 13, plug shell 16, locating pin 17, pull rod 18, positioning spring 20 and constant head tank 23, has solved and has not possess crushing function, causes the water inlet to block up easily, and is inconvenient to carry out the problem of dismouting to breaker.

Claims

Lng submerged hydraulic drive pump, including pump main part (1), its characterized in that: the pump comprises a pump body (1), wherein an installation transverse plate (3) is arranged at the bottom of the pump body through a bolt sleeve, the left side and the right side of the bottom of the installation transverse plate (3) are respectively connected with a positioning mechanism (5) through bolts, an insertion plate (14) is inserted into an inner cavity of the positioning mechanism (5), a protection housing (10) is welded between the left insertion plate and the right insertion plate (14), a positioning groove (23) is formed in one side, away from the protection housing (10), of the insertion plate (14), a crushing mechanism (4) is connected to the rear side of the protection housing (10) through bolts, and supporting mechanisms (6) are welded at four corners of the protection housing (10).
2. The Lng submersible hydraulic drive pump of claim 1, wherein: positioning mechanism (5) all weld solid fixed shell (22) including inserting shell (16) about two opposite one sides of inserting shell (16), the inner chamber sliding connection of solid fixed shell (22) has slide (21), one side difference fixedly connected with pull rod (18) and location spring (20) of inserting shell (16) are kept away from in slide (21), one side fixedly connected with locating pin (17) of pull rod (18) are kept away from in slide (21), one side that slide (21) were kept away from in locating pin (17) runs through to connect shell (16) and extend to the inner chamber of constant head tank (23).
3. The Lng submerged hydraulic driven pump of claim 2, wherein: a chamfer is formed in one side, away from the sliding plate (21), of the positioning pin (17), and a pulling plate (19) is fixedly connected to one side, away from the sliding plate (21), of the pulling rod (18).
4. The Lng submersible hydraulic drive pump of claim 1, wherein: crushing mechanism (4) are including broken motor (12), the output fixedly connected with bull stick (13) of broken motor (12), the front side of bull stick (13) runs through protective housing (10) and passes through bearing swing joint with the front side of protective housing (10) inner chamber, the fixed surface cover of bull stick (13) is equipped with crushing blade (11).
5. The Lng submersible hydraulic drive pump of claim 1, wherein: the supporting mechanism (6) comprises a fixed transverse plate (9), a supporting column (8) is welded at the bottom of the fixed transverse plate (9), and a supporting bottom plate (7) is welded at the bottom of the supporting column (8).
6. The Lng submersible hydraulic drive pump of claim 1, wherein: the top of the pump main body (1) is communicated with a water outlet flange (2), and a water inlet at the bottom of the pump main body (1) is connected with a filter screen shell (15) through a bolt.