CN113062864A

CN113062864A - Circulating water pump

Info

Publication number: CN113062864A
Application number: CN202110319319.0A
Authority: CN
Inventors: 孙国政; 许吉军; 唐成; 范文; 顾静
Original assignee: Sanlian Pump Industry Co Ltd
Current assignee: Sanlian Pump Industry Co Ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-07-02
Anticipated expiration: 2041-03-25
Also published as: CN113062864B

Abstract

The invention discloses a circulating water pump, which comprises a pump shell and an impeller arranged in the pump shell, wherein the pump shell is provided with a water inlet and a water outlet, the top of the pump shell is provided with a driving device in transmission connection with the impeller, the water inlet is positioned at the lower part of the pump shell, the impeller is arranged at the upper part of the pump shell, and the water outlet is positioned on the pump shell around the impeller.

Description

Circulating water pump

Technical Field

The invention relates to the technical field of circulating water pumps, and particularly belongs to a circulating water pump.

Background

The circulating water system in the steel mill is an indispensable major consumer with energy consumption, and the circulating water system is mainly used for cooling production equipment, thereby providing a certain guarantee for safe production. At present, a plurality of circulating water systems in China generally have the condition of low operation efficiency, and the system efficiency is generally lower than 60 percent; the pump has low operation efficiency, and the problems of large system allowance, small valve opening, large pressure loss and the like in the design process exist.

For a circulating water system, the flow rate changes greatly along with the seasonality and the production condition, a plurality of users are provided with a maximum parameter pump in field application, and then the flow rate is adjusted through a valve, so that the pressure loss of the valve is caused, the pump is pushed out with high efficiency, and the energy loss is large.

At the same time, the steel mill circulating water is largely suspended (such as CaCO)₃Iron scale, grease, etc.), cause the pump to be receiving high-speed high temperature and carry the washing away of the turbid circulating water of stereoplasm granule for it is serious to overflow surface material wearing and tearing, causes the life-span of overflowing the part short, needs frequent change to overflow the part in order to ensure reliable, the steady operation of pump, great reduction production efficiency, increased the manufacturing cost of enterprise.

Disclosure of Invention

The invention aims to provide a circulating water pump, which overcomes the defects of the prior art.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

a circulating water pump comprises a pump shell and an impeller arranged in the pump shell, wherein a water inlet and a water outlet are formed in the pump shell, a driving device in transmission connection with the impeller is arranged at the top of the pump shell, the water inlet is located at the lower portion of the pump shell, the impeller is arranged at the upper portion of the pump shell, and the water outlet is located on the pump shell around the impeller.

Wherein, the impeller include backup pad, bottom suspension fagging and install in the bottom suspension fagging and go up the propeller blade between the backup pad, bottom suspension fagging and last backup pad pass through propeller blade and connect, the middle part of bottom suspension fagging form inhalant canal, propeller blade install in inhalant canal lower support plate all around.

The lower supporting plate is also provided with a water absorbing ring on the lower surface of the water inlet channel, and the inner surface of the water absorbing ring is uniformly provided with a plurality of water scooping paddles.

The inner wall of the lower part of the pump shell is provided with a helical blade, the helical blade is spirally arranged from top to bottom on the inner wall of the pump shell, the middle part of the helical blade forms a water outlet channel, and the water inlet is positioned on the pump shell at the position of the helical blade.

The bottom of the pump shell is also provided with a separation chamber, the separation chamber is positioned below a water outlet channel formed in the middle of the spiral blade, and the separation chamber is communicated with the pump shell.

The separator in still install and subside the device, the device that subsides include branch and install in the cone at branch top, the cone all around not contact with the separator, and the cone is located the upper portion of separator, branch fixed mounting in the bottom of separator.

Wherein, the bottom of the separation chamber is also connected with a drain pipe, and a stop valve is arranged on the drain pipe.

The driving device comprises a motor and a driving rod in transmission connection with a rotating shaft of the motor, the top of the pump shell is sealed through a sealing plate arranged on the pump shell, and the driving rod penetrates through the sealing plate to be fixedly connected with the impeller and is in sealing connection with the sealing plate.

Compared with the prior art, the invention has the following implementation effects:

according to the invention, the structure of the impeller is improved, on one hand, the water drawing capacity of the circulating pump is improved under the action of the water drawing paddle, and on the other hand, the water flow in the pump shell can be stirred under the action of the water drawing paddle, so that the water flow in the pump shell generates spiral motion, and the heavy suspended matters in water are centrifugally thrown away.

Secondly, the spiral blade with the spiral structure is designed at the water inlet at the lower part of the pump shell, so that water flow entering the pump shell from the water inlet can perform spiral flow under the guiding action of the spiral blade, a centrifugal effect is generated in the process of performing spiral flow on the water flow, heavy suspended matters in the water flow are thrown to the pump shell by the water flow, and the water flow on the inner surface of the pump shell generates a laminar flow effect due to a water flow channel formed between the spiral blades, so that the problem that the heavy suspended matters impact the inner wall of the pump shell is avoided, the separation of the heavy suspended matters and the protection of the pump shell are realized, meanwhile, the separated heavy suspended matters can flow into the separation chamber at the bottom of the pump shell under the action of gravity and then are discharged from the sewage discharge pipe, and the cone can prevent the heavy suspended matters deposited at the lower part of the separation chamber from being; the structure of the circulating pump effectively avoids the problem that heavy suspended matters impact the pump shell, effectively realizes the separation of the heavy suspended matters, and prolongs the service life of the circulating pump.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic structural view of the inside of the impeller.

Description of reference numerals: 1. a pump housing; 10. a sealing plate; 11. a water inlet; 12. a water outlet; 13. a separation chamber; 14. a blow-off pipe; 2. a motor; 21. a drive rod; 3. an impeller; 31. a water absorbing ring; 32. a water-drawing paddle; 33. an upper support plate; 34. a lower support plate; 35. a propeller blade; 4. a helical blade; 5. a strut; 6. a cone.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation to be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 3, the circulating water pump of the present invention includes a pump housing 1 and an impeller 3 installed in the pump housing 1, wherein the impeller 3 includes an upper support plate 33, a lower support plate 34 and a propeller blade 35 installed between the lower support plate 34 and the upper support plate 33, the lower support plate 34 and the upper support plate 33 are connected by the propeller blade 35, a water inlet channel is formed in the middle of the lower support plate 34, and the propeller blade 35 is installed on the lower support plate 34 around the water inlet channel. The lower support plate 34 is further provided with a water suction ring 31 on the lower surface of the water inlet channel, four water scooping paddles 32 are uniformly arranged on the inner surface of the water suction ring 31, and the water scooping capacity of the circulating pump is improved through the rotation of the water scooping paddles 32 along with the lower support plate 34.

Be equipped with water inlet 11 and delivery port 12 on pump case 1, and the drive arrangement who is connected with the transmission of impeller 3 is installed at the top of pump case 1, drive arrangement includes motor 2 and the actuating lever 21 of being connected with the pivot transmission of motor 2, the top of pump case 1 is sealed through installing the closing plate 10 on pump case 1, actuating lever 21 passes closing plate 10 and impeller 3's last backup pad 33 fixed connection, and with sealing plate 10 between the sealing plate sealing connection, water inlet 11 is located the lower part of pump case 1, impeller 3 installs on the upper portion of pump case 1, delivery port 12 is located impeller 3 pump case 1 all around.

The inner wall of the lower part of the pump shell 1 is provided with a helical blade 4, the helical blade 4 is spirally arranged from top to bottom on the inner wall of the pump shell 1, the middle part of the helical blade 4 forms a water outlet channel, and the water inlet 11 is positioned on the pump shell 1 at the position of the helical blade 4. The water flow entering the pump shell 1 from the water inlet 11 can perform spiral flow under the guiding action of the spiral blades 4, a centrifugal effect is generated in the process of performing spiral flow of the water flow, heavy suspended matters in the water flow are thrown to the pump shell 1 by the water flow, and the water flow on the inner surface of the pump shell 1 generates a laminar flow effect due to the water flow channel formed between the spiral blades 4, so that the problem that the heavy suspended matters impact the inner wall of the pump shell 1 is avoided, and the separation of the heavy suspended matters and the protection of the pump shell 1 are realized; meanwhile, under the action of the water drawing paddle 32, the water flow in the pump shell 1 can be stirred, so that the water flow in the pump shell 1 generates spiral motion, and heavy suspended matters in water are centrifugally thrown away.

The bottom of the pump shell 1 is also provided with a separating chamber 13, the separating chamber 13 is positioned below a water outlet channel formed in the middle of the helical blade 4, the separating chamber 13 is communicated with the pump shell 1, the bottom of the separating chamber 13 is also connected with a sewage discharge pipe 14, a stop valve is arranged on the sewage discharge pipe 14, and the separated heavy suspended matters can flow into the separating chamber 13 at the bottom of the pump shell 1 under the action of gravity and then are discharged from the sewage discharge pipe 14.

Still install the settlement device in the separator 13, the settlement device includes branch 5 and installs in the cone 6 at branch 5 top, the cone 6 all around not contact with separator 13, and cone 6 is located the upper portion of separator 13, branch 5 fixed mounting is in the bottom of separator 13, and the heavy suspended solid that the cone 6 can avoid the deposit of separator 13 lower part is stirred by rivers, has improved the effect of separation.

The effectual problem of avoiding heavy suspended solid to strike pump case 1 of this circulating pump structure, the effectual separation that realizes heavy suspended solid has improved the life of circulating pump simultaneously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a circulating water pump, includes pump case (1) and installs impeller (3) in pump case (1), its characterized in that: the pump shell (1) is provided with a water inlet (11) and a water outlet (12), the top of the pump shell (1) is provided with a driving device in transmission connection with the impeller (3), the water inlet (11) is positioned at the lower part of the pump shell (1), the impeller (3) is arranged at the upper part of the pump shell (1), and the water outlet (12) is positioned on the pump shell (1) around the impeller (3).

2. The circulating water pump according to claim 1, wherein: impeller (3) include backup pad (33), bottom suspension fagging (34) and install propeller blade (35) between bottom suspension fagging (34) and last backup pad (33), bottom suspension fagging (34) and last backup pad (33) connect through propeller blade (35), the middle part of bottom suspension fagging (34) form inhalant canal, propeller blade (35) install on inhalant canal lower suspension fagging (34) all around.

3. The circulating water pump according to claim 1, wherein: the lower supporting plate (34) is also provided with a water absorbing ring (31) on the lower surface of the water inlet channel, and the inner surface of the water absorbing ring (31) is uniformly provided with a plurality of water absorbing paddles (32).

4. The circulating water pump according to claim 1, wherein: the water pump is characterized in that the inner wall of the lower part of the pump shell (1) is provided with a spiral blade (4), the spiral blade (4) is spirally arranged from top to bottom on the inner wall of the pump shell (1), the middle part of the spiral blade (4) forms a water outlet channel, and the water inlet is positioned on the pump shell (1) at the position of the spiral blade (4).

5. The circulating water pump according to claim 4, wherein: the bottom of the pump shell (1) is also provided with a separation chamber (13), the separation chamber (13) is positioned below a water outlet channel formed in the middle of the spiral blade (4), and the separation chamber (13) is communicated with the pump shell (1).

6. The circulation water pump according to claim 5, wherein: separating chamber (13) in still install and subside the device, the device that subsides include branch (5) and install cone (6) in branch (5) top, cone (6) all around not with separating chamber (13) contact, and cone (6) are located the upper portion of separating chamber (13), branch (5) fixed mounting in the bottom of separating chamber (13).

7. The circulation water pump according to claim 5, wherein: the bottom of the separation chamber (13) is also connected with a sewage discharge pipe (14), and the sewage discharge pipe (14) is provided with a stop valve.

8. The circulating water pump according to claim 1, wherein: the driving mechanism comprises a motor (2) and a driving rod (21) in transmission connection with a rotating shaft of the motor (2), the top of the pump shell (1) is sealed through a sealing plate (10) arranged on the pump shell (1), and the driving rod (21) penetrates through the sealing plate (10) to be fixedly connected with the impeller (3) and is in sealing connection with the sealing plate (10).