CN203879758U - Sewage pump with decompressing and cooling structure - Google Patents
Sewage pump with decompressing and cooling structure Download PDFInfo
- Publication number
- CN203879758U CN203879758U CN201420209782.5U CN201420209782U CN203879758U CN 203879758 U CN203879758 U CN 203879758U CN 201420209782 U CN201420209782 U CN 201420209782U CN 203879758 U CN203879758 U CN 203879758U
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- CN
- China
- Prior art keywords
- motor
- connecting base
- osculum
- hole
- pressure release
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a sewage pump with a decompressing and cooling structure. The sewage pump with the decompressing and cooling structure comprises a motor. A cooling sleeve is fixed to the outer wall of the motor. A cooling cavity is formed between the cooling sleeve and the outer wall of the motor. A partition supporting plate is fixed to the middle of the inner portion of a connection base. An output shaft is inserted into the partition supporting plate. A seal ring is arranged on the portion, between the partition supporting plate and an impeller, of the output shaft in a sleeved mode. A sealed cavity is defined by the seal ring, the partition supporting plate and the upper top surface of a pump body. A reinforcing rib is formed on the outer side wall of the connection base. A transverse water outlet hole and a vertical water outlet hole are formed in the reinforcing rib. The transverse water outlet hole is communicated with a water outlet hole formed in the side wall of the connection base. The water outlet hole is communicated with the sealed cavity. The vertical water outlet hole is communicated with the transverse water outlet hole. The vertical water outlet hole is communicated with the cooling cavity. By the adoption of the sewage pump with the decompressing and cooling structure, decompression can be conducted on the sealed cavity in the connection base, and normal operation of the motor can be guaranteed; in addition, water flowing into the cooling cavity from the sealed cavity can lower the temperature of the motor, and therefore the service life of the motor is prolonged.
Description
Technical field:
The utility model belongs to sewage pump equipment technical field, relates in particular to a kind of sewage pump with pressure release cooling structure.
Background technique:
In existing sewage pump, between the upper end face of its connecting base and the pump housing, form pressure release cavity, unnecessary water liquid in the pump housing is entered in pressure release cavity, drain pipe by pressure release cavity enters in the cooling cavity that the outer wall of motor is provided with again, when reducing the temperature of motor, reduce the pressure of pressure release cavity, yet when pressure release chamber pressure is excessive, liquid in its pressure release cavity cannot enter cold going cavity from drain pipe fast, but enter motor from the top of connecting base, affect the normal operation of motor, even along bad motor.
Model utility content:
The purpose of this utility model is exactly the deficiency for prior art, and provide a kind of sewage pump with pressure release cooling structure, it not only can be to the seal chamber pressure release in connecting base, pressure release cavity is also carried out to pressure release simultaneously, its Double-pressure-relief, better anti-sealing liquid enters motor, guarantee the normal operation of motor, meanwhile, its water liquid that enters cooling cavity from seal chamber can reduce the temperature of motor, improves the working life of motor.
Technology solution of the present utility model is as follows:
A kind of sewage pump with pressure release cooling structure, comprise motor, the lower end of motor is fixedly connected with connecting base, connecting base lower end is fixed with the pump housing, the output shaft of motor is hinged in connecting base and stretches into the pump housing, is fixed with impeller on output shaft, and impeller is in the pump housing, on the outer wall of described motor, be fixed with coolant jacket, between coolant jacket and the outer wall of motor, form cooling cavity;
The middle part, inside of connecting base is fixed with isolation dunnage, and output shaft sleeve is in isolation dunnage, and the output shaft upper sleeve between isolation dunnage and impeller has seal ring, between seal ring, isolation dunnage and the upper end face of the pump housing, forms seal chamber;
On the outer side wall of connecting base, form stiffening rib, on stiffening rib, form horizontal osculum and vertical osculum, the osculum laterally forming on the sidewall of osculum and connecting base is connected, osculum is connected with seal chamber, vertically osculum is connected with horizontal osculum, and vertically osculum is connected with cooling cavity.
Between the top of described connecting base and isolation dunnage, form pressure release cavity, in the upper portion side wall of connecting base, form spilled water hole, spilled water hole communicates with the pressure release cavity on the top of connecting base.
On the radially extension edge forming on the upper outside wall of the housing of described motor and connecting base, all form through hole, the through hole vertically forming on the radially extension edge of osculum and connecting base communicates, the through hole forming on the radially extension edge of connecting base communicates with the through hole of the housing of motor, and the through hole of the housing of motor communicates with cooling cavity.
On the sidewall of described stiffening rib, be fixed with reinforced block, form liquid outlet opening on reinforced block, liquid outlet opening is connected with vertical osculum.
On the upper end cap of the described pump housing, form middle through-hole, between the middle part joint sidewall on the sidewall of middle through-hole and the top of impeller, have gap, the upper end in gap is connected with seal chamber, lower end is connected with the inner chamber body of the pump housing.
The beneficial effects of the utility model are:
It not only can be to the seal chamber pressure release in connecting base, pressure release cavity is also carried out to pressure release simultaneously, its Double-pressure-relief, better anti-sealing liquid enters motor, guarantee the normal operation of motor, meanwhile, its water liquid that enters cooling cavity from seal chamber can reduce the temperature of motor, improves the working life of motor.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is partial enlarged drawing of the present utility model;
Fig. 3 is the structural representation between stiffening rib and reinforced block.
Embodiment:
Embodiment: see that Fig. 1 to 3 shows, a kind of sewage pump with pressure release cooling structure, comprise motor 1, the lower end of motor 1 is fixedly connected with connecting base 2, and connecting base 2 lower ends are fixed with the pump housing 3, and the output shaft 11 of motor 1 is hinged in connecting base 2 and stretches into the pump housing 3, on output shaft 11, be fixed with impeller 4, impeller 4, in the pump housing 3, is fixed with coolant jacket 5 on the outer wall of described motor 1, between coolant jacket 5 and the outer wall of motor 1, form cooling cavity 10;
The middle part, inside of connecting base 2 is fixed with isolation dunnage 21, output shaft 11 sleeves are in isolation dunnage 21, output shaft 11 upper sleeves between isolation dunnage 21 and impeller 4 have seal ring 6, between seal ring 6, isolation dunnage 21 and the upper end face of the pump housing 3, form seal chamber 20;
On the outer side wall of connecting base 2, form stiffening rib 22, on stiffening rib 22, form horizontal osculum 23 and vertical osculum 24, the osculum 25 laterally forming on the sidewall of osculum 23 and connecting base 2 is connected, osculum 25 is connected with seal chamber 20, vertically osculum 24 is connected with horizontal osculum 23, and vertically osculum 24 is connected with cooling cavity 10.
Between the top of described connecting base 2 and isolation dunnage 21, form pressure release cavity 30, form spilled water hole 26 in the upper portion side wall of connecting base 2, spilled water hole 26 communicates with the pressure release cavity 30 on the top of connecting base 2.
On the radially extension edge forming on the upper outside wall of the housing of described motor 1 and connecting base 2, all form through hole 7, the through hole 7 vertically forming on the radially extension edge of osculum 24 and connecting base 2 communicates, the through hole 7 forming on the radially extension edge of connecting base 2 communicates with the through hole 7 of the housing of motor 1, and the through hole 7 of the housing of motor 1 communicates with cooling cavity 10.
On the sidewall of described stiffening rib 22, be fixed with reinforced block 27, form liquid outlet opening 271 on reinforced block 27, liquid outlet opening 271 is connected with vertical osculum 24.
On the upper end cap 31 of the described pump housing 3, form middle through-hole 32, between middle part joint 41 sidewalls on the top of the sidewall of middle through-hole 32 and impeller 4, have gap 40, the upper end in gap 40 is connected with seal chamber 20, lower end is connected with the inner chamber body of the pump housing 3.
Working principle: impeller 4 rotates, making water liquid enter the outlet pipe 50 that then impeller 4 be fixed with from the sidewall of the pump housing 3 discharges, when in the water liquid that its middle pump body 3 sucks, pressure ratio is larger, its part can enter (its gap 40 is generally 0.1 to 0.5mm) in seal chamber 20 by gap 40, then from seal chamber 20, enter osculum 25, from osculum 25, enter horizontal osculum 23 again, from horizontal osculum 23, enter vertical osculum 24, enter again cooling cavity 10, seal chamber 20 is carried out to pressure release, and the water liquid that enters cooling cavity 10 is lowered the temperature to motor 1, guarantee the normal operation of motor 1, when the pressure of cooling cavity 10 is excessive, when entering in vertical osculum 24, its water liquid also can discharge by the liquid outlet opening 271 from reinforced block 27, excessive to prevent cooling chamber body 10 pressure.
When the pressure of seal chamber 20 is excessive or when seal ring 6 or other seal arrangements lost efficacy or damaged, when its water liquid and gas enter pressure release cavity 30 from seal chamber 20 (generally this situation is considerably less), water liquid in its pressure release cavity 30 or gas can be discharged from spilled water hole 26, thorough anti-sealing liquid or gas are that the top of connecting base 2 enters motor 1 from the top of pressure release cavity 30, guarantee the normal operation of water pump.
Claims (5)
1. a sewage pump with pressure release cooling structure, comprise motor (1), the lower end of motor (1) is fixedly connected with connecting base (2), connecting base (2) lower end is fixed with the pump housing (3), the output shaft (11) of motor (1) is hinged in connecting base (2) and stretches into the pump housing (3), on output shaft (11), be fixed with impeller (4), impeller (4) is in the pump housing (3), it is characterized in that: on the outer wall of described motor (1), be fixed with coolant jacket (5), between coolant jacket (5) and the outer wall of motor (1), form cooling cavity (10);
The middle part, inside of connecting base (2) is fixed with isolation dunnage (21), output shaft (11) sleeve is in isolation dunnage (21), output shaft (11) upper sleeve between isolation dunnage (21) and impeller (4) has seal ring (6), between seal ring (6), isolation dunnage (21) and the upper end face of the pump housing (3), forms seal chamber (20);
On the outer side wall of connecting base (2), form stiffening rib (22), on stiffening rib (22), form horizontal osculum (23) and vertical osculum (24), the osculum (25) laterally forming on the sidewall of osculum (23) and connecting base (2) is connected, osculum (25) is connected with seal chamber (20), vertically osculum (24) is connected with horizontal osculum (23), and vertically osculum (24) is connected with cooling cavity (10).
2. a kind of sewage pump with pressure release cooling structure according to claim 1, it is characterized in that: between the top of described connecting base (2) and isolation dunnage (21), form pressure release cavity (30), in the upper portion side wall of connecting base (2), form spilled water hole (26), spilled water hole (26) communicates with the pressure release cavity (30) on the top of connecting base (2).
3. a kind of sewage pump with pressure release cooling structure according to claim 1, it is characterized in that: on the radially extension edge forming on the upper outside wall of the housing of described motor (1) and connecting base (2), all form through hole (7), the through hole (7) vertically forming on the radially extension edge of osculum (24) and connecting base (2) communicates, the through hole (7) forming on the radially extension edge of connecting base (2) communicates with the through hole (7) of the housing of motor (1), and the through hole (7) of the housing of motor (1) communicates with cooling cavity (10).
4. a kind of sewage pump with pressure release cooling structure according to claim 1, it is characterized in that: on the sidewall of described stiffening rib (22), be fixed with reinforced block (27), on reinforced block (27), form liquid outlet opening (271), liquid outlet opening (271) is connected with vertical osculum (24).
5. a kind of sewage pump with pressure release cooling structure according to claim 1, it is characterized in that: on the upper end cap (31) of the described pump housing (3), form middle through-hole (32), between middle part joint (41) sidewall on the top of the sidewall of middle through-hole (32) and impeller (4), have gap (40), the upper end of gap (40) is connected with seal chamber (20), lower end is connected with the inner chamber body of the pump housing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420209782.5U CN203879758U (en) | 2014-04-25 | 2014-04-25 | Sewage pump with decompressing and cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420209782.5U CN203879758U (en) | 2014-04-25 | 2014-04-25 | Sewage pump with decompressing and cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203879758U true CN203879758U (en) | 2014-10-15 |
Family
ID=51680261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420209782.5U Expired - Fee Related CN203879758U (en) | 2014-04-25 | 2014-04-25 | Sewage pump with decompressing and cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203879758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488604A (en) * | 2018-10-15 | 2019-03-19 | 杭州鹤见南方泵业有限公司 | A kind of sewage pump pressure relief of novel protected mechanical seal |
-
2014
- 2014-04-25 CN CN201420209782.5U patent/CN203879758U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488604A (en) * | 2018-10-15 | 2019-03-19 | 杭州鹤见南方泵业有限公司 | A kind of sewage pump pressure relief of novel protected mechanical seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 225500 Shuang Shou Cun, Jiangyan Economic Development Zone, Jiangsu, Taizhou Patentee after: Jiangsu Beijing Water Equipment Co. Ltd. Address before: 225300 Shuang Shou Cun, Jiangyan Economic Development Zone, Jiangsu, Taizhou Patentee before: TAIZHOU JINCHUAN PUMP CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20200425 |