CN218669935U

CN218669935U - Water feeding structure of industrial boiler feed pump

Info

Publication number: CN218669935U
Application number: CN202223102882.1U
Authority: CN
Inventors: 宁志华
Original assignee: Hunan Changjia Pump Manufacturing Co ltd
Current assignee: Hunan Changjia Pump Industry (Group) Co.,Ltd.
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-03-21
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses an industrial boiler feed pump inlet structure, including the feed pump, be provided with delivery port and water inlet on the pump body of feed pump respectively: the water inlet side of the water inlet is connected with the connecting pipe through a flange, a sealing element is arranged on the inner wall of the water inlet, a butting assembly is movably connected onto the connecting pipe, a filtering assembly is arranged on the water inlet side of the connecting pipe, and a water inlet pipe fitting is arranged on the filtering assembly. The utility model discloses in, this water inlet structure is through the sealing member that sets up and support tight subassembly, can take place when the sealing member is by wearing and tearing back leakage, supports tight subassembly through rotating and makes it move to supporting tight position by lax position, can play to support tight deformation effect to the sealing member for the sealing member can carry out displacement compensation to going forward automatically, can play the effect that the self-sealing filled to the junction gap of water inlet and linking pipe, has avoided changing the inconvenience that the sealing member brought.

Description

Water feeding structure of industrial boiler feed pump

Technical Field

The utility model relates to a feed pump technical field especially relates to an industrial boiler feed pump structure of intaking.

Background

The boiler feed water pump is driven by two modes, namely a motor and a steam turbine. The motor mostly adopts an alternating current motor, so the rotating speed of a water feeding pump is constant, the water feeding regulation of a boiler is regulated through throttling, a deaerator is a mixed heating device, a water pump is needed to increase the pressure to enter the boiler, the water pump is called as the water feeding pump, in order to realize the water supply of the water feeding pump, the water inlet of the water feeding pump is required to be connected with a water supply pipeline, and meanwhile, in order to avoid the water leakage phenomenon, the water inlet of the water pump is required to be subjected to sealing protection treatment.

Chinese patent publication No.: CN211082236U discloses "a boiler feed pump inlet structure", includes fixed pipe, the welding has a plurality of extension boards on the outside of fixed pipe, fixed seal welding has the inner tube on the inner wall of fixed pipe, the perpendicular welding of upper end of fixed pipe has a connection pad No. one, set up perpendicularly between connection pad and the inner tube, just sealing connection between connection pad and the inner tube, be equipped with a plurality of connection bolt seats on the connection pad, the connection bolt seat is connected with the reinforcement section of thick bamboo through the bolt, the centre gripping is equipped with the bolt pad between bolt and the reinforcement section of thick bamboo, consolidate the section of thick bamboo and set up on No. two connection pads, be equipped with coupling spring on the bolt between connection pad No. one and No. two connection pads, seal mounting has the fender pipe on No. two connection pads that the inner tube corresponds, keep away from perpendicular seal welding on No. two connection pads that one end of connection pad corresponds and have No. two fixed pipes, no. two fixed pipe interpolation has connect the external pipe.

Current feed pump water inlet structure is when sealing up the water inlet, imbeds the junction of water inlet and supply channel with the sealing washer usually to consolidate with the help of the fastening effect of flange, because the pressure of intaking of feed pump water inlet is great, when the sealing washer receives high-pressure rivers impact for a long time, can take place the phenomenon of wearing and tearing, make the gap appear between water inlet and the supply channel, thereby lead to the sealing washer of embedding structure not convenient for quick assembly disassembly change to handle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an adopt the drive of supporting tight subassembly to support tight mode for sealed the pad can be by the removal of warping after the extrusion, carries out automatic compensation to the sealed pad position by wearing and tearing, realizes a industry boiler feed pump inlet structure of the sealed stability of structure of intaking.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides an industrial boiler feed pump structure of intaking, includes the feed pump, be provided with delivery port and water inlet on the pump body of feed pump respectively:

the water inlet side of the water inlet is connected with the connecting pipe through a flange;

a sealing element is arranged on the inner wall of the water inlet;

the connecting pipe is movably connected with a propping assembly, and the propping assembly is provided with a propping position for contacting and extruding the sealing element and a loose position separated from the sealing element on the stroke of the propping assembly;

the water inlet side of the connecting pipe is provided with a filtering component, and the filtering component is provided with a water inlet pipe fitting.

As a further description of the above technical solution:

the abutting assembly comprises an assembling ring movably arranged in the connecting pipe and an abutting ring spirally connected to the outer wall of the connecting pipe, and the abutting ring drives the assembling ring to enter the assembling groove on the water inlet.

As a further description of the above technical solution:

and a sealing groove communicated with the assembling groove is arranged in the water inlet, and an opening of the sealing groove extends to the outer wall of the end part of the water inlet.

As a further description of the above technical solution:

the sealing element is a flexible sealing gasket which is arranged in the assembling groove and extends into the sealing groove.

As a further description of the above technical solution:

the filter assembly comprises a filter bin connected with the connecting pipe, the inner wall of the filter bin is divided into two filter chambers through a partition plate, filter elements are arranged in the two filter chambers, and through holes are formed in the water outlet sides of the two filter chambers.

As a further description of the above technical solution:

the spiral connection has the bull stick on filtering the storehouse, and the tip of bull stick rotates and is connected with the shrouding that extends to in the through-hole.

As a further description of the above technical solution:

and an end cover is arranged on the outer wall of the filter bin.

As a further description of the above technical solution:

the water inlet pipe fitting comprises a water inlet pipe, a three-way valve is arranged on the water inlet pipe, two water distribution pipes are arranged on the three-way valve, and the two water distribution pipes are respectively connected with two filter chambers.

In the technical scheme, the utility model provides a pair of industrial boiler feed pump structure of intaking has following beneficial effect:

this water inlet structure can make it move to the tight position of support by the lax position through rotating the tight subassembly of support when the sealing member is worn and torn the back emergence phenomenon of leaking through the sealing member that sets up with supporting tight subassembly for the sealing member can be automatically to the preceding displacement compensation that carries out, can play the effect of self-sealing packing to the junction gap of water inlet and linking pipe, has avoided the inconvenience that the change sealing member brought.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

FIG. 1 is a schematic structural diagram of a water inlet structure of a feed pump of an industrial boiler according to an embodiment of the present invention;

fig. 2 is a schematic view of an exploded structure of a junction between a water inlet and a connecting pipe provided in an embodiment of the present invention;

fig. 3 is a schematic view of an internal structure of a filter assembly according to an embodiment of the present invention.

Description of reference numerals:

1. a feed pump; 2. a water outlet; 3. a water inlet; 31. assembling a groove; 32. a gasket; 33. a sealing groove; 4. connecting the pipe; 41. a seal ring; 5. a propping component; 51. assembling a ring; 52. a tightening ring; 6. a filter assembly; 61. a filtering bin; 62. a partition plate; 63. a filter chamber; 64. a filter element; 65. a rotating rod; 66. closing the plate; 67. a through hole; 68. an end cap; 7. a water diversion pipe; 8. a water inlet pipe; 9. and a three-way valve.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-3, a water feeding structure of a feed pump of an industrial boiler comprises a feed pump 1, and a water outlet 2 and a water inlet 3 are respectively arranged on a pump body of the feed pump 1:

the water inlet side of the water inlet 3 is connected with the connecting pipe 4 through a flange, a sealing element is arranged on the inner wall of the water inlet 3, the sealing element can play a role in sealing the joint of the water inlet 3 and the connecting pipe 4, and water flow is prevented from seeping out of the joint of the water inlet 3 and the connecting pipe 4;

the abutting assembly 5 is movably connected to the connecting pipe 4, the abutting assembly 5 is provided with an abutting position which is in contact with and extrudes the sealing element and a loose position which is separated from the sealing element on the stroke of the abutting assembly 5, when the connecting pipe 4 is connected with the water inlet 3, the abutting assembly 5 is driven to move from the loose position to the abutting position, the abutting assembly 5 can be enabled to extrude the sealing element to enable the sealing element to be displaced and deformed, a gap at the joint of the water inlet 3 and the connecting pipe 4 is filled, the sealing effect on the water inlet 3 and the connecting pipe 4 can be achieved, the position of the sealing element can be compensated by rotating the abutting assembly 5 when the sealing element is worn, and the automatic sealing effect at the joint can be achieved without replacing the sealing element again;

the side of intaking of adapter tube 4 is provided with filtering component 6, and is provided with the pipe fitting of intaking on filtering component 6, and the pipe fitting of intaking connects the water supply line, introduces filtering component 6 with the rivers in the water supply line in to through filtering component 6's filtration back, obtain clean rivers, and use in the leading-in industrial boiler of the pump income effect of feed pump 1.

The abutting component 5 comprises an assembling ring 51 movably arranged in the connecting pipe 4 and an abutting ring 52 spirally connected with the outer wall of the connecting pipe 4, a concave part for moving the assembling ring 51 is arranged on the connecting pipe 4 and positioned at the outer side of the assembling ring 51, and the connecting pipe 4 is provided with a sliding hole communicated with the concave part, and a push block fixed on the assembling ring 51 is arranged in the sliding hole, so that the push block moves in the sliding hole, the assembling ring 51 is provided with a propping ring 52 to drive the assembling ring 51 to enter the assembling groove 31 on the water inlet 3, a sealing groove 33 communicated with the assembling groove 31 is arranged in the water inlet 3, and the opening of the sealing groove 33 extends to the outer wall of the end part of the water inlet 3, the sealing element is a flexible sealing gasket 32 which is arranged in the assembling groove 31 and extends into the sealing groove 33, the inner wall of the connecting pipe 4 is provided with a sealing ring 41, when the adapter tube 4 is connected to the water inlet 3, the sealing ring 41 is first embedded in the inner wall of the water inlet 3, namely, the inner side protection function can be realized at the joint of the connecting pipe 4 and the water inlet 3, then the abutting ring 52 is rotated to move on the outer wall of the connecting pipe 4, and pushes the fitting ring 51 to move in the recess portion by the push block, thereby entering into the fitting groove 31, and pressed in contact with the packing 32, when the gasket 32 is compressed, the gasket 32 is deformed and extended into the sealing groove 33, so that the gasket 32 is removed from the sealing groove 33, and is filled outside the sealing ring 41, at this time, the fitting ring 51 can play an outer protection role in the connection part of the connecting pipe 4 and the water inlet 3, and the sealing gasket 32 may provide a further sealing and waterproofing effect between the sealing ring 41 and the mounting ring 51, and the position of the sealing gasket 32 can be compensated by rotating the abutting ring 52, and the automatic sealing effect of the joint can be realized without replacing the sealing gasket 32 again.

The filter assembly 6 comprises a filter bin 61 connected with the connecting pipe 4, the inner wall of the filter bin 61 is divided into two filter cavities 63 through a partition plate 62, filter elements 64 are arranged in the two filter cavities 63, through holes 67 are arranged on the water outlet sides of the two filter cavities 63, a rotating rod 65 is spirally connected on the filter bin 61, the end part of the rotating rod 65 is rotatably connected with a seal plate 66 extending into the through hole 67, an end cover 68 is arranged on the outer wall of the filter bin 61, the end cover 68 is fixed on the filter bin 61 through bolts, the position of the end cover 68 is just coincided with the position of the filter elements 64, the water inlet pipe fitting comprises a water inlet pipe 8, a three-way valve 9 is arranged on the water inlet pipe 8, two water dividing pipes 7 are arranged on the three-way valve 9, the two water dividing pipes 7 are respectively connected with the two filter cavities 63, and the switching function of the three-way valve 9 is achieved, the water flow guided by the water inlet pipe 8 can be respectively and independently guided into the water distribution pipe 7 and enters the corresponding filter cavities 63 in the filter bin 61 through the water distribution pipe 7, so that the water flow is filtered by the filter elements 64 to remove impurities, the filtered water flow flows out through the through holes 67 and enters the water inlet 3 through the connecting pipe 4, and finally the water flow is supplied into the industrial boiler through the water supply pump 1, so that the filtering water supply effect of the water flow is realized, when the filter elements 64 in a certain filter cavity 63 are blocked by impurities to influence the filtering effect, the conduction state of the three-way valve 9 is changed, the water flow is guided into another filter cavity 63, the water flow drives the sealing plate 66 to close the corresponding through holes 67 by rotating the rotating rod 65, the filter cavity 63 where the filter elements 64 are blocked can be closed, at the moment, the end cover 68 on the filter cavity 63 is taken down, and the filter elements 64 can be disassembled, cleaned and cleaned.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides an industrial boiler feed pump structure of intaking, includes feed pump (1), be provided with delivery port (2) and water inlet (3) on the pump body of feed pump (1) respectively, its characterized in that:

the water inlet side of the water inlet (3) is connected with the connecting pipe (4) through a flange;

a sealing element is arranged on the inner wall of the water inlet (3);

the connecting pipe (4) is movably connected with a propping assembly (5), and the propping assembly (5) has a propping position for contacting and extruding the sealing element and a relaxation position separated from the sealing element on the stroke of the propping assembly;

the water inlet side of the connecting pipe (4) is provided with a filtering component (6), and a water inlet pipe fitting is arranged on the filtering component (6).

2. The water feeding structure of the feed water pump of the industrial boiler according to claim 1, characterized in that: the tight-resisting component (5) comprises an assembling ring (51) movably arranged in the connecting pipe (4) and a tight-resisting ring (52) spirally connected to the outer wall of the connecting pipe (4), and the tight-resisting ring (52) drives the assembling ring (51) to enter the assembling groove (31) on the water inlet (3).

3. The water feeding structure of the feed water pump of the industrial boiler according to claim 2, characterized in that: a sealing groove (33) communicated with the assembling groove (31) is arranged in the water inlet (3), and the opening of the sealing groove (33) extends to the outer wall of the end part of the water inlet (3).

4. The water feeding structure of the feed water pump of the industrial boiler according to claim 1, characterized in that: the sealing element is a flexible sealing gasket (32) which is arranged in the assembly groove (31) and extends into the sealing groove (33).

5. The water feeding structure of the feed water pump of the industrial boiler according to claim 1, characterized in that: the inner wall of the connecting pipe (4) is provided with a sealing ring (41).

6. The water feeding structure of the feed water pump of the industrial boiler according to claim 1, characterized in that: the filter assembly (6) comprises a filter bin (61) connected with the connecting pipe (4), the inner wall of the filter bin (61) is divided into two filter chambers (63) through a partition plate (62), filter elements (64) are arranged in the two filter chambers (63), and through holes (67) are formed in the water outlet sides of the two filter chambers (63).

7. The water feeding structure of the feed water pump of the industrial boiler according to claim 6, characterized in that: filter and go up spiral connection in storehouse (61) and have bull stick (65), and the tip of bull stick (65) rotates and is connected with shrouding (66) that extend to in through-hole (67).

8. The water feeding structure of the feed pump of the industrial boiler according to claim 6, characterized in that: an end cover (68) is arranged on the outer wall of the filtering bin (61).

9. The water feeding structure of the feed pump of the industrial boiler according to claim 1, characterized in that: the water inlet pipe fitting comprises a water inlet pipe (8), a three-way valve (9) is arranged on the water inlet pipe (8), two water distribution pipes (7) are arranged on the three-way valve (9), and the two water distribution pipes (7) are respectively connected with two filter chambers (63).