CN219062001U

CN219062001U - High-pressure boiler feed pump

Info

Publication number: CN219062001U
Application number: CN202223027366.7U
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: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-05-23
Anticipated expiration: 2032-11-14

Abstract

The utility model discloses a high-pressure boiler feed pump, which relates to the technical field of high-pressure boiler feed pumps, and comprises a pump body, wherein a water inlet and a water outlet are arranged on the pump body, the water inlet and the water outlet are both provided with a butt joint part, the butt joint part comprises a conveying pipe, the end part of the conveying pipe is provided with a butt joint sleeve, one end of the butt joint sleeve is provided with an extrusion groove, a sealing element is embedded in the extrusion groove, the butt joint sleeve is provided with a plurality of clamping claws, and the outside of the conveying pipe is sheathed with a tightening element in a sliding manner, so that the high-pressure boiler feed pump has the beneficial effects that: the tightening member is connected with the pipeline flange by the bolts, the collecting member can squeeze the clamping claw to deform and squeeze the sealing member, the collecting member is forced to squeeze and deform towards the end face of the butt joint part, the end face of the butt joint part is attached to the pipeline flange, and the sealing member is used for squeezing the pipeline flange, so that the tightness of the connection position of the pipeline flange and the butt joint part is improved.

Description

High-pressure boiler feed pump

Technical Field

The utility model relates to the technical field of high-pressure boiler feed pumps, in particular to a high-pressure boiler feed pump.

Background

Boiler feedwater pumps are a special type of pump for pumping feedwater into steam boilers. The water may be freshly supplied or condensed water resulting from the condensation of steam generated by the boiler. The boiler feed water pump is the basis of safe and stable operation of the boiler.

At present, when the water supply pump is connected with a pipeline, because the working environment of the water supply pump is special, the necessary maintenance frequency is more frequent compared with the conventional working environment, so that the water supply pump is generally connected by adopting a loose flange, the loose flange is convenient to construct, such as the flange bolt hole is correspondingly convenient to align during connection, equipment is convenient to replace, and the like, but the loose flange has an effective sealing section smaller than a welding mode during actual use, so that the phenomenon of insufficient sealing capacity is caused.

Disclosure of Invention

The utility model aims to provide a water supply pump of a high-pressure boiler, which is characterized in that when the water supply pump is connected in a sealing way, an outer connecting sleeve extrudes an inner chuck to apply pressure to a sealing ring so as to force the sealing ring to be extruded outwards and deformed, and the sealing ring is tightly attached to a connecting pipeline, so that the sealing performance is improved, and the defects in the prior art are overcome.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high-pressure boiler feed pump, includes the pump body, be provided with water inlet and delivery port on the pump body, the water inlet with all be provided with butt joint portion on the delivery port, butt joint portion is including the conveyer pipe, the tip of conveyer pipe is provided with the butt joint cover, extrusion groove has been seted up to the one end of butt joint cover, the embedded sealing member that is equipped with of extrusion groove, the butt joint cover is provided with a plurality of clamping jaw, the outside slip of conveyer pipe has cup jointed the tightening member, the tightening member has an extrusion position the extrusion position, the tightening member extrusion the clamping jaw is right the sealing member extrudees.

Preferably, the sealing element is provided as a sealing ring, the shape of the sealing ring is provided as a ring shape, and the cross section of the sealing ring is provided as a V shape.

Preferably, the clamping claws are uniformly distributed on the butt joint sleeve, and one side of the clamping claws is in contact connection with the sealing element.

Preferably, the tightening member comprises a connecting disc, the connecting disc is sleeved on the conveying pipe in a sliding manner, a groove is formed in the connecting disc, and the axis of the groove and the axis of the conveying pipe are located on the same central line.

Preferably, in the pressing position, the groove is sleeved outside the clamping claw, and presses the clamping claw to incline towards the pressing groove.

Preferably, the shape of the pressing groove is adapted to the shape of the sealing member, and in the pressing position, the sealing member is deformed toward the end of the docking sleeve.

Compared with the prior art, the utility model has the beneficial effects that: the high-pressure boiler feed pump comprises: the tightening member is connected with the pipeline flange by the bolts, the collecting member can squeeze the clamping claw to deform and squeeze the sealing member, the collecting member is forced to squeeze and deform towards the end face of the butt joint part, the end face of the butt joint part is attached to the pipeline flange, and the sealing member is used for squeezing the pipeline flange, so that the tightness of the connection position of the pipeline flange and the butt joint part is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all of the features of the disclosed technology.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed 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 utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a butt joint structure according to an embodiment of the present utility model;

fig. 3 is a schematic diagram of a structure of a fried butt joint according to an embodiment of the present utility model.

In the figure: 10. a pump body; 11. a water inlet; 12. a water outlet; 13. a butt joint part; 131. a delivery tube; 132. a butt joint sleeve; 133. a seal; 134. clamping claws; 135. a connecting disc; 137. an extrusion groove; 138. a groove.

Description of the embodiments

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the terms "comprising" or "includes" and the like in this disclosure is intended to cover an element or article listed after that term and equivalents thereof without precluding other elements or articles. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a high-pressure boiler feed pump, including the pump body 10, be provided with water inlet 11 and delivery port 12 on the pump body 10, all be provided with docking portion 13 on water inlet 11 and the delivery port 12, docking portion 13 is used for being connected with the pipeline, the tip of pipeline must be provided with the ring flange, docking portion 13 is including conveyer pipe 131, conveyer pipe 131 connects respectively on water inlet 11 and delivery port 12, conveyer pipe 131's tip is provided with butt joint cover 132, butt joint cover 132 can laminate on the ring flange when carrying out the butt joint, can realize conveyer pipe 131 and pipeline's intercommunication like this, extrusion groove 137 has been seted up to butt joint cover 132's one end, the embedded sealing member 133 that is equipped with of extrusion groove 137, butt joint cover 132 is provided with a plurality of clamping jaw 134, clamping jaw 134 can carry out the deformation, clamping jaw 134 deformation can extrude sealing member 133, receive the sealing member 133 of extrusion can deform, through the extrusion of clamping jaw 134, and force sealing member 133 to butt joint cover 132's terminal surface extrusion and deformation, utilize sealing member 133 to extrude the flange, the sealing member 132 connection position has been increased like this, the sealing member 131 can be tightened up in the clamping jaw 134 through the extrusion position, the clamping jaw 134 has the clamping jaw 134 to press the clamping jaw 134.

Referring to fig. 2, the sealing member 133 is configured as a sealing ring, the sealing ring is configured as a ring shape, the cross-section of the sealing ring is configured as a V shape, the sealing ring surrounds the butt joint sleeve 132 for one circle, and the sealing ring is configured as a V shape, so that when being extruded, the sealing ring moves towards the end surface of the butt joint sleeve 132 better.

Referring to fig. 2 and 3, clamping jaws 134 are uniformly distributed on docking sleeve 132, and one side of clamping jaw 134 is in contact with sealing member 133, so that sealing member 133 can be compressed when clamping jaw 134 is deformed.

Referring to fig. 3, the tightening member includes a connecting disc 135, the connecting disc 135 is slidably sleeved on the conveying pipe 131, a groove 138 is formed on the connecting disc 135, and the axis of the groove 138 and the axis of the conveying pipe 131 are located on the same central line. The connection disc 135 is provided with a threaded hole for the penetration of a bolt so that the connection disc 135 can be coupled with a pipe flange, and the connection disc 135 can be pressed toward the clamping jaw 134 by the pulling force of the bolt so that the clamping jaw 134 is forced to tighten.

Referring to fig. 3, in the pressing position, the groove 138 is fitted over the outside of the clamping jaw 134, and presses the clamping jaw 134 to incline toward the pressing groove 137. The groove 138 is sleeved on the clamping claw 134, so that the clamping claw 134 tightens inwards to clamp and squeeze the sealing element 133, and the sealing element 133 is forced to displace towards the end face of the abutting sleeve 132, so that the sealing effect is improved.

Referring to fig. 3, the shape of the pressing groove 137 is adapted to the shape of the sealing member 133, and in the pressing position, the sealing member 133 is deformed toward the end of the mating sleeve 132, so that the sealing member 133 can be embedded in the pressing groove 137, and when pressing, the clamping jaw 134 is raised to deform toward the pressing groove 137, and the sealing member 133 is pressed, so that the sealing member 133 is deformed toward the end of the mating sleeve 132, thereby improving the connection tightness.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides a high-pressure boiler feed pump, includes the pump body (10), be provided with water inlet (11) and delivery port (12) on the pump body (10), its characterized in that: the water inlet (11) with all be provided with butt joint portion (13) on delivery port (12), butt joint portion (13) are including conveyer pipe (131), the tip of conveyer pipe (131) is provided with butt joint cover (132), extrusion groove (137) have been seted up to the one end of butt joint cover (132), extrusion groove (137) are embedded to be equipped with sealing member (133), butt joint cover (132) are provided with a plurality of clamping jaw (134), the outside slip of conveyer pipe (131) has cup jointed the tightening member, the tightening member has an extrusion position the tightening member extrudees clamping jaw (134) are right sealing member (133) extrudees.

2. A high pressure boiler feedwater pump of claim 1, wherein: the sealing element (133) is provided with a sealing ring, the shape of the sealing ring is provided with a ring shape, and the cross section of the sealing ring is provided with a V shape.

3. A high pressure boiler feedwater pump of claim 1, wherein: the clamping claws (134) are uniformly distributed on the butt joint sleeve (132), and one side of the clamping claws (134) is in contact connection with the sealing piece (133).

4. A high pressure boiler feedwater pump of claim 1, wherein: the tightening piece comprises a connecting disc (135), the connecting disc (135) is sleeved on the conveying pipe (131) in a sliding mode, a groove (138) is formed in the connecting disc (135), and the axis of the groove (138) and the axis of the conveying pipe (131) are located on the same central line.

5. A high pressure boiler feedwater pump of claim 4, wherein: in the pressing position, the groove (138) is sleeved outside the clamping claw (134) and presses the clamping claw (134) to incline towards the pressing groove (137).

6. A high pressure boiler feedwater pump of claim 2, wherein: the shape of the pressing groove (137) is adapted to the shape of the sealing element (133), and in the pressing position, the sealing element (133) is deformed toward the end of the butt joint sleeve (132).