CN218267780U

CN218267780U - Connecting device

Info

Publication number: CN218267780U
Application number: CN202221987734.XU
Authority: CN
Inventors: 于乐乐; 张岭; 姚国华; 常电; 张峰; 王宇
Original assignee: Huaibei Shenneng Power Generation Co ltd
Current assignee: Huaibei Shenneng Power Generation Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-01-10
Anticipated expiration: 2032-07-29

Abstract

The utility model belongs to the technical field of the power station, a connecting device is disclosed, set up between water pump and concrete flow path, this connecting device includes: the water pump flange is arranged at a water inlet or a water outlet of the water pump; the runner flange is arranged at a water inlet or a water outlet of the concrete runner and is connected with the water pump flange in a sealing way; the water stop piece is arranged between the runner flange and the concrete runner to seal between the runner flange and the concrete runner, and the water stop piece is configured to be capable of absorbing water and expanding so as to stop the outflow of water. Through above-mentioned structure, can avoid appearing not hard up back water leakage between runner flange and the concrete runner under the influence of the long-term vibrations of water pump for zonulae occludens between water pump and the concrete runner, and have good leakproofness, and then can improve power station water supply system's production efficiency and life.

Description

Connecting device

Technical Field

The utility model relates to a power station technical field especially relates to a connecting device.

Background

With the continuous development of the technology, the vertical metal volute pump is gradually used as a circulating water pump in the field of thermal power stations according to local conditions, a steel product flow channel is connected with the vertical metal volute pump, the vertical metal volute pump and the steel product flow channel are both metal pieces and are connected tightly, the steel product flow channel can well absorb vibration generated in the operation process of the vertical metal volute pump, and therefore leakage of a flange joint due to long-time vibration is avoided.

However, along with the continuous increase of unit capacity, in order to satisfy the demand of unit circulating water flow, circulating water pump entry runner is optimized by steel product to the concrete form gradually, and it is mutual as an organic whole with the factory building basis, and stability is good, but vertical metal volute pump can produce continuous vibrations in the operation process, and its long-term operation back can lead to pump entry and concrete runner junction to appear leaking. And vertical metal volute pump entry linkage cooling tower device has a large amount of circulating water in the tower pond, in case the leak source appears, need to shut down the unit to with the interior circulating water discharge of tower pond, maintain, just can normal use, this will cause huge economic loss.

At present, to the characteristic of water pump vibrations, in the water pump field, the technical staff improves this, for example set up damper and absorb its vibrations, have certain shock attenuation effect, but the time is longer back, and the entry and the concrete flow path junction of this vertical metal volute pump, especially can appear becoming flexible between concrete flow path and the flange, and water can flow from revealing, and then causes the unit to shut down the fortune, causes huge economic loss.

Therefore, it is desirable to design a connecting device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a connecting device can be so that zonulae occludens between water pump and the concrete runner, and has good leakproofness, and then can improve power station water supply system's production efficiency and life.

To achieve the purpose, the utility model adopts the following technical proposal:

a coupling device for placement between a water pump and a concrete flow path, said coupling device comprising:

the water pump flange is arranged at the water inlet or the water outlet of the water pump;

the runner flange is arranged at the water inlet or the water outlet of the concrete runner and is connected to the water pump flange in a sealing way;

and a water stop member provided between the runner flange and the concrete runner to seal between the runner flange and the concrete runner, and configured to be capable of absorbing water and expanding to block outflow of water.

Optionally, the connecting device further includes:

and the elastic mechanism is connected between the water pump flange and the runner flange in a sealing way, and the elastic mechanism is configured to be capable of slowing down the vibration of the water pump.

Optionally, the elastic mechanism includes:

an elastic member configured to be able to alleviate vibration of the water pump;

a first connecting flange provided at one end of the elastic member, the first connecting flange being hermetically connected to the water pump flange;

and a second connection flange provided at the other end of the elastic member, the second connection flange being hermetically connected to the runner flange.

Optionally, the elastic mechanism further includes a support assembly, the support assembly includes a support member and two connection pieces disposed on the elastic member at intervals along a vertical direction, and two ends of the support member are respectively connected to the connection pieces in a position-adjustable manner to adjust a compression amount of the elastic member.

Optionally, the support assembly further includes two adjusting knobs, the two adjusting knobs are respectively screwed to two ends of the support member and respectively abut against the two connecting pieces, and the adjusting knobs are configured to screw and adjust a distance between the two connecting pieces to adjust a compression amount of the elastic member.

Optionally, the supporting members are disposed in a plurality, and the plurality of supporting members are uniformly distributed on the outer circumferential surface of the elastic member along the circumferential direction of the elastic member.

Optionally, the elastic member is a metal bellows.

Optionally, the first connecting flange and the water pump flange, and the second connecting flange and the runner flange are connected by fasteners.

Optionally, the connecting device further includes a first sealing element and a second sealing element, the first sealing element is disposed between the elastic mechanism and the water pump flange, and the second sealing element is disposed between the elastic mechanism and the flow channel flange.

Optionally, the water stop member is a water bar or a water stop glue.

The utility model has the advantages that:

the utility model provides a water pump water inlet and outlet connecting device, which can realize the sealing between a water pump and a concrete runner by the sealing connection of a water pump flange at a water inlet or a water outlet of the water pump and a runner flange at a water inlet or a water outlet of the concrete runner; and set up the stagnant water spare between runner flange and concrete runner, can absorb the inflation in order to stop the outflow of water, avoid appearing becoming flexible back water leakage under the influence of long-term vibrations of water pump between runner flange and the concrete runner for the inlet of water pump and the concrete runner between close connection, the leakproofness is good, and can improve the production efficiency and the life of this power station water supply system.

Drawings

Fig. 1 is a schematic structural diagram of a water supply system of a thermal power station according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a connection device according to an embodiment of the present invention.

In the figure:

10. a water pump flange; 20. a runner flange; 30. a water stop member;

40. an elastic mechanism; 41. an elastic member; 42. a first connecting flange; 43. a second connecting flange; 44. a support assembly; 441. a support member; 442. connecting sheets; 443. adjusting a knob;

50. a fastener; 60. a first seal member; 70. a second seal member;

200. a water pump; 300. and (4) a concrete runner.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

At present, in the thermal power station field, as shown in fig. 1, thermal power station's water supply system often includes water pump 200 and concrete runner 300, vertical metal volute pump is generally selected for use to water pump 200, adopt the flange to carry out sealing connection usually between water pump 200 and the concrete runner 300, however, along with the vibrations of water pump 200 in the course of the work, bear the vibrations of water pump 200 for a long time between the flange of metal material and the concrete runner 300, can make above-mentioned not hard up between the two, cause this water supply system's leakage, need be with its shutdown, discharge the circulating water in the water tower, maintain again, can cause huge economic loss.

In order to solve the above problem, as shown in fig. 1 and fig. 2, the embodiment provides a connection device, which is disposed between the water pump 200 and the concrete flow channel 300, and the connection device includes a water pump flange 10, a flow channel flange 20 and a water stop 30, so as to ensure good sealing between the concrete flow channel 300 and the flow channel flange 20, avoid water leakage, and improve production efficiency. Specifically, the water pump flange 10 is disposed at a water inlet or a water outlet of the water pump 200, and is used for guiding water out of or flowing water into the water pump 200; the runner flange 20 is disposed at a water inlet or a water outlet of the concrete runner 300, and is used for leading water out of or flowing water into the concrete runner 300, and the runner flange 20 is hermetically connected to the water pump flange 10, so that sealing between the water pump 200 and the concrete runner 300 can be realized, and water outflow is avoided. Further, the water stop member 30 is arranged between the runner flange 20 and the concrete runner 300, the runner flange 20 and the concrete runner 300 can be sealed, the water stop member 30 can absorb expansion to stop water flowing out, poor sealing performance caused by the vibration of the water pump 200 between the runner flange 20 and the concrete runner 300 for a long time is avoided, and then the phenomenon of water leakage is avoided.

Through above-mentioned structure, can guarantee to use the back for a long time at this water supply system, because stagnant water piece 30 sets up between runner flange 20 and concrete runner 300, can absorb the inflation in order to block the outflow of water, avoid water to reveal for zonulae occludens between water pump 200's entry and the concrete runner 300, the leakproofness is good, and can improve this water supply system's production efficiency and life.

Optionally, the water stop 30 is a water stop strip or a water stop glue, has the functions of expansion, water absorption and sealing, can absorb water, and can avoid water leakage, so that the inlet of the water pump 200 is tightly connected with the concrete flow channel 300, and the sealing performance is good. Alternatively, in this embodiment, the connection means is provided between the water outlet of the water pump 200 and the water inlet of the concrete flow path 300. It will be appreciated that in other embodiments, the attachment means can be provided between other structures for sealing against shock absorption.

Alternatively, the connection manner of the water pump flange 10 and the water pump 200 includes welding, integral molding, and the like, and is not particularly limited herein. Optionally, the runner flange 20 is disposed at a water inlet or a water outlet of the concrete runner 300 in an embedded manner.

In this embodiment, as shown in fig. 1 and fig. 2, the connection device further includes an elastic mechanism 40, the elastic mechanism 40 is hermetically connected between the water pump flange 10 and the runner flange 20, and the elastic mechanism 40 has certain elasticity and can slow down the vibration of the water pump 200 when the water pump 200 vibrates, so that the vibration transmitted to the connection between the runner flange 20 and the concrete runner 300 is reduced, and the service life of the connection device is prolonged. Alternatively, the elastic mechanism 40 has a ring structure, and can communicate between the water pump 200 and the concrete flow path 300.

Specifically, as shown in fig. 2, the elastic mechanism 40 includes an elastic member 41, a first connecting flange 42 and a second connecting flange 43, and the elastic member 41 has elasticity and can reduce the vibration of the water pump 200; the first connecting flange 42 is disposed at one end of the elastic member 41 and is connected to the water pump flange 10 in a sealing manner, so that the elastic mechanism 40 is connected to the water pump 200 in a sealing manner; the second connecting flange 43 is disposed at the other end of the elastic member 41, and the second connecting flange 43 is hermetically connected to the runner flange 20, so that the elastic mechanism 40 is hermetically connected to the concrete runner 300. Through the structure, the elastic mechanism 40 can be connected between the water pump 200 and the concrete runner 300 in a sealing manner, and the elastic mechanism 40 can slow down the vibration of the water pump 200, so that the vibration between the runner flange 20 and the concrete runner 300 is reduced, and the service life of the water supply system is prolonged.

Alternatively, in this embodiment, the elastic member 41 is a metal bellows, and has certain strength and elasticity, which can ensure both the strength of the elastic mechanism 40 and the damping of the water pump 200. It is understood that, in other embodiments, the elastic member 41 may have other elastic structures, and the strength and elasticity of the elastic member 41 can be ensured, which is not limited in particular.

Further alternatively, as shown in fig. 2, the first connecting flange 42 and the water pump flange 10 and the second connecting flange 43 and the runner flange 20 are connected by fasteners 50, so that the first connecting flange 42 and the water pump flange 10 can be fixed, the second connecting flange 43 and the runner flange 20 can be fixed, and further the elastic mechanism 40 and the water pump 200 can be fixedly connected, and the elastic mechanism 40 and the concrete runner 300 can be fixedly connected. Optionally, in this embodiment, the fastening member 50 is a bolt, a plurality of fixing holes are correspondingly formed between the first connecting flange 42 and the water pump flange 10, a plurality of fixing holes are correspondingly formed between the second connecting flange 43 and the flow channel flange 20, the plurality of fixing holes are uniformly distributed along the circumferential direction of the elastic mechanism 40, the fastening member 50 penetrates through the first connecting flange 42 and the water pump flange 10 to be screwed and fixed with a nut, and the fastening member 50 penetrates through the second connecting flange 43 and the flow channel flange 20 to be screwed and fixed with a nut. In other embodiments, the fastening member 50 may have other structures, and the fixed connection between the elastic mechanism 40 and the water pump 200 and the fixed connection between the elastic mechanism 40 and the concrete runner 300 may be achieved, and is not particularly limited herein.

Further, as shown in fig. 2, the elastic mechanism 40 further includes a first sealing member 60, and the first sealing member 60 is disposed between the elastic mechanism 40 and the water pump flange 10, so as to enable a sealed connection between the elastic mechanism 40 and the water pump flange 10. Optionally, the elastic mechanism 40 further includes a second sealing element 70, and the second sealing element 70 is disposed between the elastic mechanism 40 and the flow channel flange 20, so as to enable a sealed connection between the elastic mechanism 40 and the flow channel flange 20. Through the structure, the elastic mechanism 40 is respectively connected with the runner flange 20 and the water pump flange 10 in a sealing manner, so that the elastic mechanism 40 is respectively connected with the concrete runner 300 and the water pump 200 in a sealing manner, and the concrete runner 300 is further connected with the water pump 200 in a sealing manner.

Further, as shown in fig. 2, the elastic mechanism 40 further includes a supporting assembly 44, the supporting assembly 44 includes a supporting member 441 and two connecting pieces 442 disposed on the elastic member 41 at intervals along the vertical direction, and two ends of the supporting member 441 are respectively connected to the connecting pieces 442 in a position-adjustable manner, so that the compression amount of the elastic member 41 is adjustable, the strength of the elastic mechanism 40 is improved, the occurrence of the situation that the elastic mechanism 40 is compressed to the limit is avoided, the elastic mechanism 40 can better alleviate the vibration of the water pump 200, and the service life of the elastic mechanism 40 is prolonged.

Optionally, as shown in fig. 2, the supporting member 44 further includes two adjusting knobs 443, the two adjusting knobs 443 are respectively screwed on both ends of the supporting member 441 and respectively abut against the two connecting pieces 442, and the distance between the two connecting pieces 442 can be adjusted by screwing the adjusting knobs 443, so that the compression amount of the elastic member 41 can be adjusted. Specifically, the two ends of the supporting member 441 are provided with external threads, and the adjusting knob 443 is provided with internal threads, so that the adjusting knob 443 can be screwed with the supporting member 441.

Preferably, the plurality of support assemblies 44 are uniformly distributed on the outer circumferential surface of the elastic member 41 along the circumferential direction of the elastic member 41, so that the elastic member 41 can be supported and adjusted in all directions, and the strength and adjustability of the elastic mechanism 40 are improved.

In this embodiment, as shown in fig. 1 and fig. 2, when the water pump 200 and the concrete flow channel 300 are installed, the water stop 30 is disposed between the concrete flow channel 300 and the flow channel flange 20, the flow channel flange 20 is pre-embedded to a water inlet or a water outlet of the concrete flow channel 300, then the first connecting flange 42 is hermetically connected with the water pump flange 10 through the first sealing element 60, and then the second connecting flange 43 is hermetically connected with the flow channel flange 20 through the second sealing element 70, so that the water pump 200 and the concrete flow channel 300 can be hermetically communicated with each other, and water can flow between the water pump 200 and the concrete flow channel 300; in the using process, the elastic piece 41 is arranged between the water pump 200 and the concrete runner 300, so that the vibration of the water pump 200 can be relieved; the water stop piece 30 is arranged between the concrete runner 300 and the runner flange 20 and can absorb expansion to stop water from flowing out, water leakage after looseness between the runner flange 20 and the concrete runner 300 under the influence of long-term vibration of the water pump 200 is avoided, tight connection is formed between an inlet of the water pump 200 and the concrete runner 300, sealing performance is good, and production efficiency and service life of a water supply system of the power station can be improved.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements, and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A connection device to be provided between a water pump (200) and a concrete flow channel (300), characterized in that the connection device comprises:

the water pump flange (10) is arranged at the water inlet or the water outlet of the water pump (200);

the runner flange (20) is arranged at a water inlet or a water outlet of the concrete runner (300), and the runner flange (20) is connected to the water pump flange (10) in a sealing manner; and

and a water stop (30) disposed between the runner flange (20) and the concrete runner (300) to seal between the runner flange (20) and the concrete runner (300), and the water stop (30) is configured to be capable of absorbing water and expanding to block the outflow of water.

2. The connection device of claim 1, further comprising:

the elastic mechanism (40) is connected between the water pump flange (10) and the runner flange (20) in a sealing mode, and the elastic mechanism (40) is configured to be capable of buffering vibration of the water pump (200).

3. The connection device according to claim 2, characterized in that said elastic means (40) comprise:

an elastic member (41), the elastic member (41) being configured to be capable of damping vibration of the water pump (200);

the first connecting flange (42) is arranged at one end of the elastic piece (41), and the first connecting flange (42) is connected to the water pump flange (10) in a sealing mode; and

and the second connecting flange (43) is arranged at the other end of the elastic piece (41), and the second connecting flange (43) is connected to the flow channel flange (20) in a sealing mode.

4. The connecting device according to claim 3, wherein the elastic mechanism (40) further comprises a support member (44), the support member (44) comprises a support member (441) and two connecting pieces (442) arranged on the elastic member (41) at intervals in the vertical direction, and both ends of the support member (441) are respectively connected to the connecting pieces (442) in a position-adjustable manner so as to adjust the compression amount of the elastic member (41).

5. The connection device according to claim 4, characterized in that the support assembly (44) further comprises two adjustment knobs (443), the two adjustment knobs (443) being respectively screwed to both ends of the support member (441) and abutting against the two connection tabs (442), the adjustment knobs (443) being configured to screw-adjust a distance between the two connection tabs (442) to adjust a compression amount of the elastic member (41).

6. The connecting device according to claim 5, wherein the supporting member (44) is provided in plurality, and the plurality of supporting members (44) are uniformly distributed on the outer circumferential surface of the elastic member (41) in the circumferential direction of the elastic member (41).

7. A connection device according to claim 3, characterized in that the elastic member (41) is a metal bellows.

8. The connecting device according to claim 3, characterized in that the first connecting flange (42) and the water pump flange (10) and the second connecting flange (43) and the runner flange (20) are connected by means of fasteners (50).

9. The connecting device according to claim 2, characterized in that it further comprises a first seal (60) and a second seal (70), said first seal (60) being arranged between said elastic means (40) and said water pump flange (10), said second seal (70) being arranged between said elastic means (40) and said runner flange (20).

10. A connection device according to any of claims 1-9, characterized in that the water stop (30) is a water stop strip or a water stop glue.