CN203500090U - Auxiliary start device of circulating water pump - Google Patents
Auxiliary start device of circulating water pump Download PDFInfo
- Publication number
- CN203500090U CN203500090U CN201320597460.8U CN201320597460U CN203500090U CN 203500090 U CN203500090 U CN 203500090U CN 201320597460 U CN201320597460 U CN 201320597460U CN 203500090 U CN203500090 U CN 203500090U
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- CN
- China
- Prior art keywords
- water
- negative
- water pump
- pressure barrel
- ejector
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- Expired - Fee Related
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Abstract
The utility model discloses an auxiliary start device of a circulating water pump. The auxiliary start device can shorten start time and comprises a negative-pressure barrel, the circulating water pump and water supplement tubes, wherein a jacket is arranged in the negative-pressure barrel, the bottom of the jacket is provided with a pipeline communicated with a low water pond, the negative-pressure barrel outside the jacket is connected with an inlet of the circulating water pump, the water supplement tubes are connected with the outside of the jacket in the negative-pressure barrel, a branch tube is connected with the water supplement tubes and is provided with an ejector, an ejector water inlet valve is disposed in front of the ejector, a lateral inlet of the ejector is connected with the upper portion of the negative-pressure barrel, an air valve is arranged on a pipeline connected between the lateral inlet and the upper portion of the negative-pressure barrel, and the water supplement tube on the front portion of the branch tube and the water supplement tube on the rear portion of the branch tube are provided with a water supplement main valve and a water supplement valve respectively. When high-speed water flow passes the ejector, air on the upper portion of the negative-pressure barrel is pumped into a mixing chamber of the ejector and sprayed along with the water flow, so that the vacuum degree of the negative-pressure barrel is further improved, vacuumizing time is greatly shortened, the circulating water pump reaches work load quickly, and start is normal.
Description
Technical field
The utility model relates to the auxiliary actuating apparatus of cooling tower circular centrifugal pump in chemical field, particularly comprises this class device of negative pressure bucket.
Background technique
At present, the cooling tower circular centrifugal pump in chemical field, when starting, is generally all taked to arrange before circulating water pump import one and is vacuumized negative pressure bucket (hereinafter to be referred as negative pressure bucket) and starts the water extraction in pond, bottom.Wherein a kind of is at negative pressure bottom of the barrel install pipeline bottom valve, prevent that in bucket, liquid flows backwards, negative pressure bucket top connects supplementary water pipe, when opening pump, bottom valve is in closed condition, opens and supplements water pipe to moisturizing in negative pressure bucket, when liquid level surpasses circulating water pump import certain altitude, pump can turn round by on-load, until working properly; Another kind is, in negative pressure bucket, chuck is set, passage is left on chuck top, the inner negative pressure bottom of the barrel device for cleaning pipeline that passes through of chuck is to bottom, pond, chuck is outside to communicate with circulating water pump import, and the outside Chang Cunshui of chuck, when opening pump, the outside water of chuck is drawn in pump, negative pressure bucket upper space forms negative pressure simultaneously, and the inner water surface of chuck is constantly promoted until water is drawn in pump by upper channel, and so circulation is until circulating water pump is working properly.This general mode that vacuumizes vacuumizes difficulty while existing system larger, and the opening time is longer, has the perishable gas leakage of negative pressure bucket simultaneously, problem when platform is produced in maintenance impact.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of circulating water pump auxiliary actuating apparatus that shortens starting time.
For solving the problems of the technologies described above, the utility model has been done further improvement on the basis of existing technology.The technical solution of the utility model is: a kind of circulating water pump auxiliary actuating apparatus, comprise negative pressure bucket, circulating water pump and water-adding pipe, in negative pressure bucket, be provided with chuck, chuck bottom is provided with the pipeline that is communicated with low pool, negative pressure bucket outside chuck is connected with the import of circulating water pump, the chuck that water-adding pipe is connected in negative pressure bucket is outside, on water-adding pipe, connect an arm, on this arm, sparger is installed, sparger inlet valve is set before sparger, the side-entrance of sparger is connected to negative pressure bucket top and on the pipeline of their connections, air valve is set, before arm, moisturizing main valve and water-feeding valve are set respectively on the water-adding pipe at rear portion.
First open moisturizing main valve and water-feeding valve to the outside moisturizing of negative pressure bucket chuck, moisturizing completes ON cycle water pump, water-feeding valve is closed, open sparger inlet valve and air valve, according to bernoulli principle, when high-velocity flow passes through sparger, negative pressure bucket upper air is drawn in the mixed chamber of sparger, with current, spray, thereby further improved the degree of vacuum of negative pressure bucket, due to the working method that has adopted negative pressure bucket to combine with sparger, thereby the time that forms degree of vacuum greatly shortened, circulating water pump has reached working load soon, opens normal.
Compared with prior art, the utlity model has following beneficial effect: (1) has shortened the starting time of circulating water pump, when minimizing production system affects platform; (2) improve the reliability of pumped vacuum systems, even in the situation that negative pressure bucket exists certain corrosion air-leakage, still can guarantee the unlatching of pump, saved repair time and the cost of overhaul; (3) cooling tower itself need to carry out continuous moisturizing, and after transformation, the water of sparger ejection directly returns system, does not consume unnecessary resource.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1-negative pressure bucket, 2-circulating water pump, 3-water-adding pipe, 4-chuck, 5-low pool, 6-pipeline, 7-sparger, 8-sparger inlet valve, 9-air valve, 10-moisturizing main valve, 11-water-feeding valve.
Embodiment
In order to make those skilled in the art better understand the utility model, below in conjunction with accompanying drawing, the utility model is done to further clear, complete explanation.
As shown in Figure 1, a kind of circulating water pump auxiliary actuating apparatus, comprise negative pressure bucket 1, circulating water pump 2 and water-adding pipe 3, in negative pressure bucket 1, be provided with chuck 4, chuck 4 bottoms are provided with the pipeline 6 that is communicated with low pool 5, negative pressure bucket 1 outside chuck 4 is connected with the import of circulating water pump 2, water-adding pipe 3 is connected to chuck 4 outsides in negative pressure bucket 1, on water-adding pipe 3, connect an arm, sparger 7 is installed on this arm, sparger inlet valve 8 is set before sparger 7, the side-entrance of sparger 7 is connected to negative pressure bucket 1 top and on the pipeline of their connections, air valve 9 is set, before arm, moisturizing main valve 10 and water-feeding valve 11 are set respectively on the water-adding pipe 3 at rear portion.
Before ON cycle water pump 2, first open moisturizing main valve 10 and water-feeding valve 11 to the 4 outside moisturizings of negative pressure bucket chuck, moisturizing completes ON cycle water pump 2, closes water-feeding valve 11, opens sparger inlet valve 8 and air valve 9.
Sparger 7 outlets are towards low pool 5, and when high-velocity flow passes through sparger 7, negative pressure bucket 1 upper air is drawn in the mixed chamber of sparger, with current, sprays in low pool 5.
The claimed scope of the utility model is not limited to above embodiment; to those skilled in the art; the utility model can have various deformation and change, all any modifications of doing within design of the present utility model and principle, improves and is equal within replacement all should be included in protection domain of the present utility model.
Claims (1)
1. a circulating water pump auxiliary actuating apparatus, comprise negative pressure bucket (1), circulating water pump (2) and water-adding pipe (3), in negative pressure bucket (1), be provided with chuck (4), chuck (4) bottom is provided with the pipeline (6) that is communicated with low pool (5), the outer negative pressure bucket (1) of chuck (4) is connected with the import of circulating water pump (2), water-adding pipe (3) is connected to chuck (4) outside in negative pressure bucket (1), it is characterized in that: on water-adding pipe (3), connect an arm, sparger (7) is installed on this arm, the front sparger inlet valve (8) that arranges of sparger (7), the side-entrance of sparger (7) is connected to negative pressure bucket (1) top and on the pipeline of their connections, air valve (9) is set, before arm, moisturizing main valve (10) and water-feeding valve (11) are set respectively on the water-adding pipe at rear portion (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320597460.8U CN203500090U (en) | 2013-09-27 | 2013-09-27 | Auxiliary start device of circulating water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320597460.8U CN203500090U (en) | 2013-09-27 | 2013-09-27 | Auxiliary start device of circulating water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500090U true CN203500090U (en) | 2014-03-26 |
Family
ID=50331073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320597460.8U Expired - Fee Related CN203500090U (en) | 2013-09-27 | 2013-09-27 | Auxiliary start device of circulating water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500090U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612982A (en) * | 2015-01-20 | 2015-05-13 | 湖南山源安自控***有限公司 | Dry pumping prevention and burning prevention automatic protection device and method for mine stainless steel multistage pump |
| CN104863900A (en) * | 2015-06-05 | 2015-08-26 | 安徽瀚洋节能科技有限公司 | Process for mechanical sealing running protection of industrial centrifugal pump |
| CN104863864A (en) * | 2015-05-26 | 2015-08-26 | 安徽瀚洋节能科技有限公司 | Device for improving mechanical sealing performance of industrial centrifugal pump |
-
2013
- 2013-09-27 CN CN201320597460.8U patent/CN203500090U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612982A (en) * | 2015-01-20 | 2015-05-13 | 湖南山源安自控***有限公司 | Dry pumping prevention and burning prevention automatic protection device and method for mine stainless steel multistage pump |
| CN104863864A (en) * | 2015-05-26 | 2015-08-26 | 安徽瀚洋节能科技有限公司 | Device for improving mechanical sealing performance of industrial centrifugal pump |
| CN104863900A (en) * | 2015-06-05 | 2015-08-26 | 安徽瀚洋节能科技有限公司 | Process for mechanical sealing running protection of industrial centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20160927 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |