Water pump for cooling-water machine

Abstract

The utility model relates to the technical field of water pumps, in particular to a water pump for a cooling-water machine, which comprises a pump body and a motor main body, the motor main body comprises a motor base and a front end cover, the motor base and the pump body are respectively arranged on two sides of the front end cover, the side portion of the front end cover is provided with a support in an extending mode, and the front end cover is arranged on the support. According to the water pump, the whole water pump is supported and installed through the support extending from the front end cover, the support is provided with the installation bottom hole for being connected with the locking piece, and compared with a traditional water pump which is installed through a hole formed in a motor base, the water pump has the advantages that the water pump is convenient to install and install, and the installation efficiency is improved. The motor or the pump body can be independently disassembled through the mounting structure of the support, the whole water pump can be maintained without being disassembled, and the water pump has the advantage of being convenient to disassemble, assemble and maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to water pump technical field especially is related to a water pump for water chiller. BACKGROUND

[0002] The water chiller is the key temperature control equipment in industrial and commercial fields, and is widely used in manufacturing, medical treatment, food and other industries through efficient refrigeration to ensure stable operation of equipment, and has the advantages of energy saving and precise temperature control.

[0003] The water pump is the indispensable core equipment for conveying cooling water in the water chiller, and is usually powered by a motor, and the water pump of the prior art is installed on the motor base by opening a hole in the motor base, which is inconvenient to disassemble and maintain.

[0004] The utility model provides a water pump for water chiller to overcome the shortcomings and deficiencies of the prior art. UTILITY MODEL CONTENTS

[0005] The utility model discloses a water pump for water chiller, which overcomes the shortcomings and deficiencies of the prior art, and has the advantages of convenient disassembly and maintenance.

[0006] The utility model discloses the technical scheme as follows: a water pump for water chiller, including pump body and motor main body, the motor main body includes motor base, the motor main body still includes front end cover, the motor base and pump body are arranged at both sides of front end cover respectively, the side of front end cover still extends the support, the support is set up with the installation bottom hole, the installation bottom hole is used for being connected with equipment through locking piece.

[0007] The support includes a support plate and an installation plate, the installation bottom hole is arranged on the installation plate, the extension direction of the installation plate is parallel to the axis direction of the motor base, one end of the support plate is connected with the side wall of the front end cover, and the other end is connected with the end of the installation plate away from the front end cover, and the support plate and the installation plate are arranged at an included angle.

[0008] The motor body is also provided with a rotating shaft, the pump body is internally provided with a guide vane and an impeller, the rotating shaft extends to the inside of the pump body through the front end cover, and the end of the rotating shaft that passes through the front end cover is connected with the impeller and the guide vane in sequence, the pump body is also provided with a water outlet and a water inlet communicated with the guide vane.

[0009] The front end cover and the pump body are also provided with a baffle through which the rotating shaft passes, the front end cover extends in the direction of the pump body and has an end cover flange, the pump body extends and has a connecting shell wrapped outside the end cover flange, the outer edge of the baffle extends between the end cover flange and the connecting shell, the rotating shaft is also externally sleeved with a mechanical seal, one end of the mechanical seal abuts against the impeller and the other end abuts against the baffle.

[0010] An O-shaped sealing ring is arranged between the baffle and the connecting shell.

[0011] The material of the pump body is stainless steel, and the wall thickness of the pump body is between 1.2mm and 1.5mm.

[0012] The materials of the impeller and the guide vane are both plastic.

[0013] The material of the mechanical seal is special silicon carbide graphite rubber.

[0014] The utility model discloses the following beneficial effects: the utility model discloses a support that the front end cover extends for the whole water pump support and installation, and the installation bottom hole is opened on the support for the locking piece connection, and compared with the traditional water pump through the hole installation on the motor base, through the mounting structure of the support can separate the motor or pump body, do not need to take down the whole water pump to carry out the maintenance, have the advantages such as convenient dismounting and maintenance, and the pump body and motor are installed on the both sides of the support, and the stress is even, and the installation is stable. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, according to these drawings, other drawings still belong to the scope of the utility model.

[0016] Fig. 1 It is the structure schematic view of the water pump of the cold water machine of the utility model;

[0017] Fig. 2 It is the top view schematic view of the utility model;

[0018] In the diagram, 1-pump body, 2-motor base, 3-front cover, 4-bracket, 5-mounting hole, 6-support plate, 7-mounting plate, 8-shaft, 9-guide vane, 10-impeller, 11-outlet, 12-inlet, 13-baffle, 14-end cover flange, 15-connecting shell, 16-mechanical seal, 17-O-ring seal. Detailed Implementation

[0019] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0020] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0021] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0022] like Figs. 1-2 As shown, this is an embodiment of the present invention. A water pump for a chiller includes a pump body 1 and a motor body. The motor body includes a motor base 2 and a front cover 3. The motor base 2 and the pump body 1 are respectively disposed on both sides of the front cover 3. A bracket 4 extends from the side of the front cover 3. The bracket 4 has a mounting bottom hole 5, which is used to connect to the equipment through a locking member.

[0023] The beneficial effects of this design are as follows: This utility model provides support and installation for the entire water pump through the bracket extending from the front cover. The bracket has mounting holes for connecting locking components. In this embodiment, the locking components use existing screws, which are easy to install. Compared with traditional water pumps that are installed by drilling holes in the motor base, the mounting structure of the bracket allows the motor or pump body to be disassembled separately without having to remove the entire water pump for maintenance. This has the advantages of convenient disassembly and maintenance. Furthermore, the pump body and motor are installed on both sides of the bracket, resulting in even force distribution and stable installation.

[0024] Further, the bracket 4 comprises a support plate 6 and a mounting plate 7, the mounting hole 5 is arranged on the mounting plate 7, the extending direction of the mounting plate 7 is parallel to the axis direction of the motor base 2, one end of the support plate 6 is connected with the side wall of the front end cover 3 and the other end is connected with the end of the mounting plate 7 away from the front end cover 3, and the support plate 6 and the mounting plate 7 are arranged at an angle.

[0025] The beneficial effects of such an arrangement are as follows: the structure of the bracket can provide greater support, and the overall water pump has high stability after installation.

[0026] Further, the motor body is further provided with a rotating shaft 8, the pump body 1 is provided with a guide vane 9 and an impeller 10, the rotating shaft 8 extends through the front end cover 3 to the inside of the pump body 1, and one end of the rotating shaft 8 connected with the impeller 10 and the guide vane 9 in sequence, the pump body 1 is further provided with a water outlet 11 and a water inlet 12 communicated with the guide vane 9.

[0027] The beneficial effects of such an arrangement are as follows: the connection structure of the motor driving water pump, the rotating shaft of the motor passes through the front end cover to drive the impeller to rotate, and the structure is simple and reasonable.

[0028] Further, the front end cover 3 and the pump body 1 are further provided with a baffle 13 for the rotating shaft 8 to pass through, the front end cover 3 extends towards the pump body 1 and has an end cover flange 14, the pump body 1 extends and has a connecting shell 15 wrapped outside the end cover flange 14, the outer edge of the baffle 13 extends between the end cover flange 14 and the connecting shell 15, the rotating shaft 8 is further provided with a mechanical seal 16, one end of the mechanical seal 16 abuts against the impeller 10 and the other end abuts against the baffle 13.

[0029] The beneficial effects of such an arrangement are as follows: the cooperation of the baffle and the mechanical seal provides good sealing for the water pump.

[0030] Further, an O-shaped sealing ring 17 is arranged between the baffle 13 and the connecting shell 15.

[0031] The beneficial effects of such an arrangement are as follows: the O-shaped sealing ring further increases the sealing performance of the baffle connection.

[0032] Further, the material of the pump body 1 is stainless steel, and the wall thickness of the pump body 1 is between 1.2mm and 1.5mm.

[0033] The beneficial effects of such an arrangement are as follows: the pump body is made of 304 stainless steel, compared with the traditional cast iron or cast steel pump body, the cost is lower, and the weight is also lower, the structure is lightweight, the wall thickness of the stainless steel pump body is only between 1.2mm and 1.5mm, and the wall thickness of the cast iron or cast steel pump body can reach more than 4mm.

[0034] Further setting, the material of the impeller 10 and the guide vane 9 is plastic.

[0035] The beneficial effects of such settings are as follows: the plastic material used for the impeller and the guide vane is PEEK (Polyetheretherketone) or PPO material. PEEK is a special engineering plastic, and PPO is a plastic raw material. The Chinese name of PPO is polyphenyl ether, which is poly 2, 6-dimethyl-1, 4-phenyl ether. The English name is Polyphenylene oxiole (abbreviation PPO). Compared with traditional metal materials, the manufacturing cost is lower, and the processing technology is simpler.

[0036] Further setting, the material of the mechanical seal 16 is special silicon carbide graphite rubber.

[0037] The beneficial effects of such settings are as follows: the silicon carbide has the characteristics of low temperature resistance and anti-freezing liquid, and is more suitable for the working environment of the water pump.

[0038] The above disclosure is only the preferred embodiment of the utility model, of course, cannot limit the scope of the utility model right with this, therefore, the equivalent changes made according to the utility model claim still belong to the scope covered by the utility model.

Claims

1. A water pump for a water chiller, comprising a pump body (1) and a motor body, the motor body comprising a motor base (2), characterized in that: The motor body further comprises a front end cover (3), the motor base (2) and the pump body (1) are arranged at two sides of the front end cover (3) respectively, the side of the front end cover (3) further extends a support (4), the support (4) is provided with a mounting bottom hole (5), the mounting bottom hole (5) is used for being connected with equipment through locking members.

2. A water pump for a cold water machine according to claim 1, characterized in that: The support (4) comprises a supporting plate (6) and a mounting plate (7), the mounting bottom hole (5) is arranged on the mounting plate (7), the extending direction of the mounting plate (7) is parallel to the axis direction of the motor base (2), one end of the supporting plate (6) is connected with the side wall of the front end cover (3) and the other end is connected with the end of the mounting plate (7) away from the front end cover (3), the supporting plate (6) and the mounting plate (7) are arranged at an included angle.

3. A water pump for a cold water machine according to claim 1, characterized in that: The motor body is further provided with a rotating shaft (8), the pump body (1) is provided with a guide vane (9) and an impeller (10) inside, the rotating shaft (8) extends to the inside of the pump body (1) through the front end cover (3), and one end of the rotating shaft (8) passing through the front end cover (3) is connected with the impeller (10) and the guide vane (9) in sequence, the pump body (1) is further provided with a water outlet (11) and a water inlet (12) communicated with the guide vane (9).

4. A water pump for a chiller according to claim 3, wherein: The front end cover (3) and the pump body (1) are further provided with a baffle (13) for the rotating shaft (8) to pass through, the front end cover (3) extends towards the pump body (1) and is provided with an end cover flange (14), the pump body (1) extends and is provided with a connecting shell (15) covering the outside of the end cover flange (14), the outer edge of the baffle (13) extends between the end cover flange (14) and the connecting shell (15), the rotating shaft (8) is further provided with a mechanical seal (16), one end of the mechanical seal (16) abuts against the impeller (10) and the other end abuts against the baffle (13).

5. A water pump for a cold water machine according to claim 4, characterized in that: An O-shaped sealing ring (17) is arranged between the baffle (13) and the connecting shell (15).

6. A water pump for a cold water machine according to claim 1, characterized in that: The material of the pump body (1) is stainless steel, and the wall thickness of the pump body (1) is between 1.2mm and 1.5mm.

7. A water pump for a cold water machine according to claim 1, characterized in that: The materials of the impeller (10) and the guide vane (9) are plastic.

8. A water pump for a chiller according to claim 4, wherein: The material of the mechanical seal (16) is special silicon carbide graphite rubber.

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