CN203036618U - Boiler cooling system with stepped revolving speed circulating pump adopted - Google Patents
Boiler cooling system with stepped revolving speed circulating pump adopted Download PDFInfo
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- CN203036618U CN203036618U CN 201320040414 CN201320040414U CN203036618U CN 203036618 U CN203036618 U CN 203036618U CN 201320040414 CN201320040414 CN 201320040414 CN 201320040414 U CN201320040414 U CN 201320040414U CN 203036618 U CN203036618 U CN 203036618U
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- circulating pump
- rotating speed
- cooling system
- speed module
- revolving speed
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Abstract
The utility model discloses a boiler cooling system with a stepped revolving speed circulating pump adopted. The boiler cooling system with the stepped revolving speed circulating pump adopted comprises a cooling tower 1, the circulating pump 2 and a condenser 3. The cooling tower 1, the circulating pump 2 and the condenser 3 are connected in sequence to form water current circulation. The circulating pump 2 is respectively connected with a first revolving speed module 21 and a second revolving speed module 22 of a motor. The circulating pump 2 is provided with a nth circulating pump in parallel, and the nth circulating pump is respectively connected with the cooling tower 1 and the condenser 3. The circulating pump 2, an auxiliary circulating pump 4 ... and the nth circulating pump are respectively connected with the first revolving module 21, the second revolving speed module 22 ... and an mth revolving speed module. Through the system, the effect that the efficiency of the circulating pump changes in a stepped type is achieved, and the effect of stepped type standardization and diversification of flow velocity of circulating water in a circulating system can be achieved.
Description
Technical field
The utility model relates to a kind of boiler cooling system of power industry, relates in particular to a kind of boiler cooling system that adopts ladder rotating speed circulating pump.
Background technology
At present, circulating pump energy consumption in hot-water boiler room is occupied sizable ratio in the boiler room total energy consumption.Facts have proved, can save power consumption greatly to the method for operation that water circulating pump is taked to change flow stage by stage.
In practice, owing to water circulating pump is selected improperly influence cooling effect and to cause the phenomenon of waste of energy to mainly contain as if selecting for use under the situation of more powerful circulating pump, in the winter time because outdoor temperature is lower, under this state, start circulating pump and caused waste virtually, and increased the production cost of power plant, caused non-essential pollution; Under the situation as if the circulating pump of selecting lower-wattage for use, because outdoor temperature is higher, cooling system does not reach production requirement under this state, thereby has improved equipment failure rate, has reduced production efficiency in summer.
For addressing the above problem, a lot of power plants under the different boiler working condition situations, select to install a plurality of water circulating pumps in Various Seasonal.And the use of water circulating pump often is not one, but two, three, many in parallel uses.And when many water circulating pump parallel runnings, though satisfied hot user's needs, the efficient of pump group is lower, causes a large amount of wastes of electric energy, has increased operation cost and the maintenance cost of power plant simultaneously.So choose reasonable hot-water circulating pump, recirculated water pump curve and heat supplying pipeline characteristic curve are complementary, making the operating point of pump is necessary in effectively distinguishing, realization avoids the actual water circulating pump flow that many boiler rooms are arranged and lift greater than flow and lift that system should dispose, causes unnecessary waste.
As shown in Figure 1, have now in the cooling system, successively end to end cooling tower, circulating pump and condenser.Described circulating pump connects the first rotating speed module of motor, and circulating pump is rotated with first rotating speed under the drive of motor.Described first rotating speed is that circulating pump is with the rotating speed operation of 495rpm.Under this state, the recirculated water in the cooling system can only circulate with constant flow rate, has caused cooling system not to be suitable for multi-state, diversified the operation.
Need and shortcoming the special the utility model that proposes based on above.
The utility model content
The utility model respectively by having the driven by motor of different rotating speeds, has realized that cooling system is in the purpose that satisfies the instructions for use under the different operating modes by the circulating pump that will be arranged in parallel.
The technical solution of the utility model is:
A kind of boiler cooling system that adopts ladder rotating speed circulating pump comprises: cooling tower, and circulating pump and gas trap, described said apparatus joins end to end successively, to form water circulation;
It is characterized in that: described circulating pump is connected with the second rotating speed module with the first rotating speed module of motor respectively.
Further, described circulating pump has been arranged in parallel secondary circulating pump, and described secondary circulating pump is connected with gas trap with cooling tower respectively, and described secondary circulating pump is connected with the second rotating speed module with the first rotating speed module of motor respectively.
Further, described secondary circulating pump is connected with the 4th rotating speed module with the 3rd rotating speed module of motor respectively.
Further, described circulating pump has been arranged in parallel the n circulating pump, and described n circulating pump is connected with gas trap with cooling tower respectively.
Further, described circulating pump, secondary circulating pump ... the n circulating pump connects the first rotating speed module, the second rotating speed module of motor respectively ... m rotating speed module.
The beneficial effects of the utility model are:
By circulating pump is connected with the second rotating speed module with the first rotating speed module respectively, realized the purpose of the different in flow rate of recirculated water in the cooling system;
By being arranged in parallel secondary circulating pump, make the flow velocity in the cooling system realize step-like variation, realized the purpose that cooling system all is suitable under the Various Seasonal;
By said system, realized that the efficient of circulating pump is the effect that notch cuttype changes, reach the recirculated water flow velocity in the circulatory system and be the standardization of notch cuttype ground, diversified effect.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the prior art constructions block diagram;
Fig. 2 is structured flowchart of the present utility model;
Fig. 3 is preferred structure block diagram of the present utility model;
Fig. 4 is the further preferred structure block diagram of this utility model.
Description of symbols among the figure: 1-cooling tower, 2-circulating pump, 3-condenser, the secondary circulating pump of 4-, the 21-first rotating speed module, the 22-second rotating speed module, 23-the 3rd rotating speed module, 24-the 4th rotating speed module.
The specific embodiment
As shown in Figure 2, present embodiment has been introduced a kind of boiler cooling system that adopts ladder rotating speed circulating pump, comprising: cooling tower 1, and circulating pump 2 and gas trap 3, described said apparatus joins end to end successively, to form water circulation; Described circulating pump 2 is connected with the second rotating speed module 22 with the first rotating speed module 21 of circulating pump motor respectively.
In the present embodiment, described circulating pump 2 connects the first rotating speed module of motor, and circulating pump 2 is rotated with first rotating speed under the drive of circulating pump motor; Described circulating pump 2 connects the second rotating speed module of motor, and circulating pump is rotated with second rotating speed under the drive of motor.In the present embodiment, described first rotating speed is that circulating pump is with the rotating speed operation of 495rpm; Described first rotating speed is that circulating pump is with the rotating speed operation of 372rpm.
By said apparatus, realized two kinds of mode of operations of circulating pump, realized the purpose of the different in flow rate of recirculated water in the cooling system, make that the recirculated water in the cooling system is carried out corresponding mode of operation under varying environment.
As shown in Figure 3, present embodiment has been introduced a kind of boiler cooling system that adopts ladder rotating speed circulating pump, comprising: cooling tower 1, and circulating pump 2 and gas trap 3, described said apparatus joins end to end successively, to form water circulation; Described circulating pump 2 is connected with the second rotating speed module with the first rotating speed module of circulating pump motor respectively.Described circulating pump 2 has been arranged in parallel secondary circulating pump 4, and described secondary circulating pump 4 is connected with gas trap 3 with cooling tower 1 respectively, and described secondary circulating pump 4 is connected with the second rotating speed module with the first rotating speed module of secondary circulating pump motor respectively.
In the present embodiment, described circulating pump 2 and secondary circulating pump 4 are connected the first rotating speed module of circulating pump motor and secondary circulating pump motor respectively, and circulating pump 2 or secondary circulating pump 4 are rotated with first rotating speed under the drive of motor; Described circulating pump 2 is connected the second rotating speed module of circulating pump motor or secondary circulating pump motor with secondary circulating pump 4, circulating pump 2 or secondary circulating pump 4 are rotated with second rotating speed under the drive of motor.In the present embodiment, described first rotating speed is that circulating pump 2 or secondary circulating pump 4 are with the rotating speed operation of 495rpm; Described first rotating speed is that circulating pump 2 or secondary circulating pump 4 are with the rotating speed operation of 372rpm.
Pass through said apparatus, can make the recirculated water in the cooling system, be recycled pump respectively and be connected the first rotating speed module and the second rotating speed module with secondary circulating pump, can make cooling system be combined to form three kinds of different mode of operations, realized the purpose of the different in flow rate of recirculated water in the cooling system, made that the recirculated water in the cooling system is carried out corresponding mode of operation under varying environment.
As shown in Figure 3, present embodiment has been introduced a kind of boiler cooling system that adopts ladder rotating speed circulating pump, comprising: cooling tower 1, and circulating pump 2 and gas trap 3, described said apparatus joins end to end successively, to form water circulation; Described circulating pump 2 is connected with the second rotating speed module with the first rotating speed module of circulating pump motor respectively.Described circulating pump 2 has been arranged in parallel secondary circulating pump 4, and described secondary circulating pump 4 is connected with gas trap 3 with cooling tower 1 respectively, and described secondary circulating pump 4 is connected with the 4th rotating speed module with the 3rd rotating speed module of secondary circulating pump motor respectively.
In the present embodiment, described circulating pump 2 connects the first rotating speed module of circulating pump motor, and circulating pump 2 is rotated with first rotating speed under the drive of motor; Described circulating pump 2 connects the second rotating speed module of circulating pump motor, and circulating pump 2 is rotated with second rotating speed under the drive of motor; The 3rd rotating speed module of described secondary circulating pump 4 auxiliary connection circulating pump motors is rotated secondary circulating pump 4 with the 3rd rotating speed under the drive of motor; The 4th rotating speed module of described secondary circulating pump 4 auxiliary connection circulating pump motors is rotated secondary circulating pump 4 with the 4th rotating speed under the drive of motor.In the present embodiment, described first rotating speed is that circulating pump 2 is with the rotating speed operation of 495rpm; Described second rotating speed is circulating pump 2 with the rotating speed operation of 372rpm, described the 3rd rotating speed be secondary circulating pump 4 with the rotating speed operation of 495rpm, described the 4th rotating speed is that secondary circulating pump 4 is with the rotating speed operation of 425rpm.
Pass through said apparatus, can make the recirculated water in the cooling system, being recycled pump 2 and secondary circulating pump 4 respectively drives down, can make cooling system be combined to form multiple different mode of operation, the efficient that has realized recirculated water is the effect that notch cuttype changes, and has reached the recirculated water flow velocity in the circulatory system and has been the standardization of notch cuttype ground, diversified effect.
It should be noted that; above-mentioned specific embodiment only is exemplary; under above-mentioned instruction of the present utility model, those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvement or distortion drop in the protection domain of the present utility model.
It will be understood by those skilled in the art that top specific descriptions just in order to explain the purpose of this utility model, is not for restriction the utility model.Protection domain of the present utility model is limited by claim and equivalent thereof.
Claims (5)
1. boiler cooling system that adopts ladder rotating speed circulating pump comprises: cooling tower (1), and circulating pump (2) and gas trap (3), described said apparatus joins end to end successively, to form water circulation;
It is characterized in that: described circulating pump (2) is connected with the second rotating speed module (22) with the first rotating speed module (21) of circulating pump motor respectively.
2. a kind of boiler cooling system that adopts ladder rotating speed circulating pump according to claim 1, it is characterized in that: described circulating pump (2) has been arranged in parallel at least one secondary circulating pump (4), described secondary circulating pump (4) is connected with gas trap (3) with cooling tower (1) respectively, and described secondary circulating pump (4) is connected with the second rotating speed module (22) with the first rotating speed module (21) of secondary circulating pump motor respectively.
3. a kind of boiler cooling system that adopts ladder rotating speed circulating pump according to claim 2, it is characterized in that: described secondary circulating pump (4) is connected with the 4th rotating speed module (24) with the 3rd rotating speed module (23) of secondary circulating pump motor respectively.
4. a kind of boiler cooling system that adopts ladder rotating speed circulating pump according to claim 1, it is characterized in that: described circulating pump (2) has been arranged in parallel the n circulating pump, and described n circulating pump is connected with gas trap (3) with cooling tower (1) respectively.
5. according to the arbitrary described a kind of boiler cooling system that adopts ladder rotating speed circulating pump of claim 1 to 4, it is characterized in that: described circulating pump (2), secondary circulating pump (4) ... the n circulating pump connects the first rotating speed module (21), the second rotating speed module (22) of motor respectively ... m rotating speed module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040414 CN203036618U (en) | 2013-01-25 | 2013-01-25 | Boiler cooling system with stepped revolving speed circulating pump adopted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040414 CN203036618U (en) | 2013-01-25 | 2013-01-25 | Boiler cooling system with stepped revolving speed circulating pump adopted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203036618U true CN203036618U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320040414 Expired - Fee Related CN203036618U (en) | 2013-01-25 | 2013-01-25 | Boiler cooling system with stepped revolving speed circulating pump adopted |
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| CN (1) | CN203036618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779347A (en) * | 2019-10-15 | 2020-02-11 | 中国电建集团山东电力建设第一工程有限公司 | Intelligent control device for circulating water system and use method |
-
2013
- 2013-01-25 CN CN 201320040414 patent/CN203036618U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779347A (en) * | 2019-10-15 | 2020-02-11 | 中国电建集团山东电力建设第一工程有限公司 | Intelligent control device for circulating water system and use method |
| CN110779347B (en) * | 2019-10-15 | 2023-10-20 | 中国电建集团山东电力建设第一工程有限公司 | Intelligent control device for circulating water system and application method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20220125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |