CN217899928U - Flue gas water-lifting cooling system - Google Patents
Flue gas water-lifting cooling system Download PDFInfo
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- CN217899928U CN217899928U CN202221359811.7U CN202221359811U CN217899928U CN 217899928 U CN217899928 U CN 217899928U CN 202221359811 U CN202221359811 U CN 202221359811U CN 217899928 U CN217899928 U CN 217899928U
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Abstract
The utility model relates to a flue gas water lift cooling system, include auxiliary engine circulating water pump, flue gas water lift device and the auxiliary engine ventilation cooling tower that connects in order on the flow direction of cooling water to the delivery port of auxiliary engine ventilation cooling tower is connected to auxiliary engine circulating water pump's water inlet, is connected with first booster pump between auxiliary engine circulating water pump and the flue gas water lift device, is equipped with first booster pump on the first booster pump. Like this, utilize the auxiliary engine circulating water pump and the auxiliary engine ventilation cooling tower of configuration between the auxiliary engine in the factory, need not independently set up indirect air cooling tower again, circulating water pump package, cool off the user of flue gas water lift device as auxiliary engine circulating water system, and utilize the export pressure of auxiliary engine circulating water pump, provide the cooling water for flue gas water lift device by auxiliary engine circulating water pump, reduce the initial investment of newly-built power plant, can also carry out technical transformation to the power plant of having put into operation, promote economic benefits, provide the guarantee to the steady operation of unit.
Description
Technical Field
The disclosure relates to the technical field of flue gas treatment, in particular to a flue gas water lifting cooling system.
Background
Moisture recovery recycles in the realization flue gas in the thermal power factory, provides the flue gas water lift technique, establishes an independent set of cooling water circulating system and provides the cooling, and the mode that independent indirect air cooling tower and cooling water circulating pump were established in present stage flue gas water lift system adopts provides the cooling source that the cooling condenses for the flue gas, and this kind of mode area is big, and the construction cost is high, and electric energy consumption is high, and later stage cost of maintenance improves. In order to create benefits by utilizing a flue gas water-lifting technology, a flue gas water-lifting cooling system needs to be improved urgently, and the power consumption of a thermal power plant caused by flue gas water lifting is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a flue gas water lift cooling system, this flue gas water lift cooling system can reduce the initial investment of newly-built power plant, can also carry out technical transformation to the power plant of having put into operation, promotes economic benefits to the steady operation of unit provides the guarantee.
In order to realize the above-mentioned purpose, this disclosure provides a flue gas water lift cooling system, include auxiliary engine circulating water pump, flue gas water lift device and the auxiliary engine ventilation cooling tower that connects in order on the flow direction of cooling water, and the delivery port of auxiliary engine ventilation cooling tower is connected to auxiliary engine circulating water pump's water inlet, auxiliary engine circulating water pump with be connected with first booster line between the flue gas water lift device, be equipped with first booster water pump on the first booster line.
Optionally, a flow meter is further disposed between the first pressurization pipeline and the flue gas water lifting device.
Optionally, the inlet of the flue gas water lifting device is provided with a cooling water electric valve.
Optionally, a first inlet electric butterfly valve and a first outlet electric butterfly valve are further arranged on the first pressure increasing pipeline, and the first inlet electric butterfly valve, the first pressure increasing water pump and the first outlet electric butterfly valve are sequentially connected in the flow direction of the cooling water.
Optionally, a first filter screen is arranged on the first booster pipeline at the inlet of the first booster water pump.
Optionally, a first outlet check valve is arranged at an outlet of the first booster water pump on the first booster pipeline.
Optionally, a second pressurizing pipeline is further connected between the auxiliary machine circulating water pump and the flue gas water lifting device, the second pressurizing pipeline is connected with the first pressurizing pipeline in parallel, and a second pressurizing water pump is arranged on the second pressurizing pipeline.
Optionally, a second inlet electric butterfly valve and a second outlet electric butterfly valve are further arranged on the second pressure increasing pipeline, and the second inlet electric butterfly valve, the second pressure increasing water pump and the second outlet electric butterfly valve are sequentially connected in the flow direction of the cooling water.
Optionally, a second filter screen is arranged on the second booster pipeline at the inlet of the second booster water pump.
Optionally, a second outlet check valve is arranged at an outlet of the second booster water pump on the second booster pipeline.
Through above-mentioned technical scheme, utilize the auxiliary engine circulating water pump and the auxiliary engine ventilation cooling tower of configuration between the auxiliary engine in the factory, need not independently set up indirect air cooling tower again, circulating water pump group, cool off the user of flue gas water lift device as auxiliary engine circulating water system, and utilize the export pressure of auxiliary engine circulating water pump, provide the cooling water for flue gas water lift device by auxiliary engine circulating water pump, newly-built initial investment of power plant has been reduced, can also carry out technical transformation to the power plant of having put into operation, promote economic benefits, and provide the guarantee to the steady operation of unit.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a schematic diagram of a flue gas water cooling system according to an exemplary embodiment of the present disclosure;
fig. 2 is a partial schematic view of a in fig. 1.
Description of the reference numerals
1. 2 auxiliary engine circulating water pumps of flue gas water lifting device
3. First pressurization pipeline of auxiliary machine ventilation cooling tower 4
410. First inlet electric butterfly valve of first booster water pump 420
430. First outlet electric butterfly valve 440 first filter screen
450. First outlet check valve 5 flowmeter
6. Cooling water electric valve 7 second pressurization pipeline
710. Second inlet electric butterfly valve of second booster water pump 720
730. Second outlet electric butterfly valve 740 second filter screen
750. Second outlet check valve
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, "inner" and "outer" refer to the inner and outer of the respective component profiles, unless otherwise specified. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated.
In the related technology, the inlet water temperature of the original smoke water lifting device under the most dangerous working condition is 30.6 ℃, the outlet water temperature is 40.3 ℃, the cooling water amount is 7344t/h, and the environment temperature is 20 ℃, and the structure, the design inlet and outlet temperature and the regulation protection mode of the original indirect air cooling tower are the same as those of an auxiliary machine ventilation cooling tower, so that the smoke water lifting cooling system is improved.
Referring to fig. 1 and 2, the present embodiment provides a flue gas water-lifting cooling system, which may include an auxiliary machinery circulating water pump 2, a flue gas water-lifting device 1, and an auxiliary machinery ventilation cooling tower 3 connected in sequence in a flow direction of cooling water, and a water outlet of the auxiliary machinery ventilation cooling tower 3 is connected to a water inlet of the auxiliary machinery circulating water pump 2, wherein the flue gas water-lifting device 1 is used for exchanging heat between vapor in flue gas and the cooling water; the auxiliary machine circulating water pump 2 is used for improving the pressure of auxiliary machine cooling water and circularly cooling auxiliary machine circulating water, and in the disclosure, the auxiliary machine circulating water pump 2 can be selected as a horizontal single-stage double-suction centrifugal pump; the auxiliary machine ventilation cooling tower 3 cools the auxiliary machine cooling water, and the water temperature of the cooling water inlet of the flue gas water lifting device 1 is ensured. The working process of the flue gas water lifting cooling system is as follows: the water vapor in the flue gas exchanges heat with cooling water input by the auxiliary machine circulating water pump 2 in the flue gas water lifting device 1 and is further condensed into water, the cooling water absorbs heat in the flue gas water lifting device 1 and then enters the auxiliary machine ventilating and cooling tower 3 to release heat, and the cooling water is cooled by the auxiliary machine ventilating and cooling tower 3 and then flows into the auxiliary machine circulating water pump 2 again to circulate. In addition, a first pressurizing pipeline 4 is connected between the auxiliary machine circulating water pump 2 and the flue gas water lifting device 1, a first pressurizing water pump 410 is arranged on the first pressurizing pipeline 4, the first pressurizing water pump 410 is used for pressurizing auxiliary machine cooling water, the inlet pressure of the flue gas water lifting device 1 is ensured, and the resistance of a pipeline in a flue gas water lifting cooling system is overcome.
Utilize original auxiliary machinery intercooling system of power plant, with auxiliary engine cooling water by auxiliary engine circulating water pump 2, carry out the pressure boost through first booster water pump 410 again, get into in flue gas water lift device 1, carry out the heat transfer by cooling water and flue gas in flue gas water lift device 1, the flue gas condensation, the cooling water absorbs the heat and then gets into auxiliary engine ventilation cooling tower 3 release heat, can sacrifice the heat transfer volume of flue gas water lift device 1 if necessary, be used for protecting auxiliary engine ventilation cooling tower 3's the risk of freezing, auxiliary engine cooling water passes through auxiliary engine circulating water pump 2 again after auxiliary engine ventilation cooling tower 3 cools off, first booster water pump 410 gets into flue gas water lift device 1 and circulates.
Through the technical scheme, utilize auxiliary engine circulating water pump 2 and auxiliary engine ventilation cooling tower 3 of configuration between the auxiliary engine in the factory, need not independently set up indirect air cooling tower again, circulating water pump group, cool off flue gas water lift device 1 as auxiliary engine circulating water system's a user, and utilize auxiliary engine circulating water pump 2's outlet pressure, provide the cooling water for flue gas water lift device 1 by auxiliary engine circulating water pump 2, newly-built initial investment of power plant has been reduced, can also carry out technical transformation to the power plant of having put into operation, promote economic benefits, and provide the guarantee to the steady operation of unit.
Independent indirect air cooling tower is not built to this disclosed technical scheme, can effectively use land resource, promotes the land utilization ratio of building the power plant, the initial stage construction cost of the power plant that has significantly reduced, and the operation personnel need not be in the operation data of a monitoring independent indirect cooling tower, has reduced operation personnel's work load. In addition, the auxiliary machine intercooling system has better anti-freezing effect in winter, can eliminate the risk of independently setting up a cooling tower for freezing, and ensures the stable operation of the unit. In addition, an independent flue gas cooling water circulating pump is not needed to be arranged, and a booster water pump with lower power is arranged, so that the plant power rate of stable operation of an electric energy consumption power plant is effectively reduced. By reducing the number of operating equipment, the possibility of failure is reduced, thereby reducing the later maintenance cost.
As an exemplary embodiment of the present disclosure, referring to fig. 1, a flow meter 5 may be further disposed between the first pressurization pipeline 4 and the flue gas water lifting device 1, and the flow meter 5 is used for monitoring the flow rate of the cooling water entering the flue gas water lifting device 1. In an embodiment of the present disclosure, a flow meter 5 may be arranged on the pipeline between the flue gas water lifting device 1 and the first pressurization pipeline 4.
Further, referring to fig. 1, the inlet of the flue gas water lift 1 may be provided with a cooling water electric valve 6 to control the cooling water entering the flue gas water lift 1.
Referring to fig. 1, the first pressure increasing pipeline 4 may further include a first inlet electric butterfly valve 420 and a first outlet electric butterfly valve 430, and the first inlet electric butterfly valve 420, the first pressure increasing water pump 410, and the first outlet electric butterfly valve 430 are sequentially connected in a flow direction of the cooling water. The first inlet electric butterfly valve 420 and the first outlet electric butterfly valve 430 can isolate the first booster water pump 410, open the electric butterfly valves when the first booster water pump 410 is in use, and close when not in use.
Further, referring to fig. 1, a first screen 440 may be provided on the first booster line 4 at an inlet of the first booster water pump 410. First filter screen 440 is used for detaching the impurity of aquatic, guarantees that auxiliary engine cooling water quality is good, will in time change the filter screen when the filter screen differential pressure is high to guarantee the function of filter screen.
Specifically, the first booster pipeline 4 may be provided with a first outlet check valve 450 at the outlet of the first booster water pump 410, and the first outlet check valve 450 may limit the flow of the cooling water in one direction and prevent the cooling water from flowing in the opposite direction. In an embodiment of the present disclosure, as shown in fig. 1, the first screen 440 and the first outlet check valve 450 are both disposed between the first inlet electric butterfly valve 420 and the first outlet electric butterfly valve 430.
According to an exemplary embodiment of the present disclosure, in the normal operation process of the system, two pressure increasing water pumps may be configured, one for one, and a single pressure increasing water pump may ensure the pressure of the cooling water for the flue gas water lift device 1, and the pressure increasing water pump adopts the frequency conversion to adjust the output of the pressure increasing water pump, so as to control the pressure and flow rate of the cooling water at the inlet of the flue gas water lift device 1. Considering various resistances between the auxiliary ventilating and cooling tower 3 and the flue gas water lifting device 1, a pressure boost water pump set may be optionally added, for example, as shown in fig. 1, a second pressure boost pipeline 7 arranged in parallel with the first pressure boost pipeline 4 is additionally arranged between the auxiliary circulating water pump 2 and the flue gas water lifting device 1, a second pressure boost water pump 710 is arranged on the second pressure boost pipeline 7, and the second pressure boost water pump 710 may be used as a standby pressure boost water pump.
Referring to fig. 1, the second pressurizing pipeline 7 may further include a second inlet electric butterfly valve 720 and a second outlet electric butterfly valve 730, and the second inlet electric butterfly valve 720, the second pressurizing water pump 710, and the second outlet electric butterfly valve 730 are sequentially connected in the flow direction of the cooling water. The second inlet electric butterfly valve 720 and the second outlet electric butterfly valve 730 can isolate the second booster water pump 710, open the electric butterfly valves when the second booster water pump 710 is used, and close the electric butterfly valves when the second booster water pump 710 is not used.
Further, referring to fig. 1, a second screen 740 may be provided on the second booster line 7 at the inlet of the second booster water pump 710. First filter screen 440 is used for detaching the impurity of aquatic, guarantees that auxiliary engine cooling water quality is good, will in time change the filter screen when the filter screen differential pressure is high to guarantee the function of filter screen.
Still further, a second outlet check valve 750 may be disposed at an outlet of the second booster water pump 710 on the second booster pipeline 7, and the second outlet check valve 750 may limit the cooling water to flow in one direction and prevent the cooling water from flowing in the opposite direction. In an embodiment of the present disclosure, as shown in fig. 1, the second screen 740 and the second outlet check valve 750 are both disposed between the second inlet electric butterfly valve 720 and the second outlet electric butterfly valve 730.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. The utility model provides a flue gas water lift cooling system, its characterized in that includes auxiliary machine circulating water pump, flue gas water lift device and the auxiliary machine draft cooling tower of connecting in order on the flow direction of cooling water, the delivery port of auxiliary machine draft cooling tower is connected to auxiliary machine circulating water pump's water inlet, auxiliary machine circulating water pump with be connected with first booster line between the flue gas water lift device, be equipped with first booster pump on the first booster line.
2. The flue gas water lifting cooling system according to claim 1, wherein a flow meter is further disposed between the first pressurization pipeline and the flue gas water lifting device.
3. The flue gas water lifting cooling system according to claim 1 or 2, wherein a cooling water electric valve is arranged at the inlet of the flue gas water lifting device.
4. The flue gas water lifting cooling system according to claim 3, wherein a first inlet electric butterfly valve and a first outlet electric butterfly valve are further arranged on the first pressure increasing pipeline, and the first inlet electric butterfly valve, the first pressure increasing water pump and the first outlet electric butterfly valve are sequentially connected in the flow direction of cooling water.
5. The flue gas water-lifting cooling system of claim 3, wherein a first filter screen is arranged on the first booster pipeline at an inlet of the first booster water pump.
6. The flue gas water-lifting cooling system of claim 3, wherein a first outlet check valve is arranged on the first booster pipeline at an outlet of the first booster water pump.
7. The flue gas water lifting cooling system according to claim 3, wherein a second pressurizing pipeline is further connected between the auxiliary machine circulating water pump and the flue gas water lifting device, the second pressurizing pipeline is connected in parallel with the first pressurizing pipeline, and a second pressurizing water pump is arranged on the second pressurizing pipeline.
8. The flue gas water lifting cooling system according to claim 7, wherein a second inlet electric butterfly valve and a second outlet electric butterfly valve are further arranged on the second pressure increasing pipeline, and the second inlet electric butterfly valve, the second pressure increasing water pump and the second outlet electric butterfly valve are sequentially connected in the flow direction of cooling water.
9. The flue gas water-lifting cooling system of claim 7, wherein a second filter screen is arranged on the second booster pipeline at an inlet of the second booster water pump.
10. The flue gas water-lifting cooling system of claim 7, wherein a second outlet check valve is arranged on the second booster pipeline at an outlet of the second booster water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221359811.7U CN217899928U (en) | 2022-05-31 | 2022-05-31 | Flue gas water-lifting cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221359811.7U CN217899928U (en) | 2022-05-31 | 2022-05-31 | Flue gas water-lifting cooling system |
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| Publication Number | Publication Date |
|---|---|
| CN217899928U true CN217899928U (en) | 2022-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221359811.7U Active CN217899928U (en) | 2022-05-31 | 2022-05-31 | Flue gas water-lifting cooling system |
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| CN (1) | CN217899928U (en) |
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2022
- 2022-05-31 CN CN202221359811.7U patent/CN217899928U/en active Active
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