CN218269026U - Combined cycle high-pressure water supply pressure control structure - Google Patents
Combined cycle high-pressure water supply pressure control structure Download PDFInfo
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- CN218269026U CN218269026U CN202220877023.0U CN202220877023U CN218269026U CN 218269026 U CN218269026 U CN 218269026U CN 202220877023 U CN202220877023 U CN 202220877023U CN 218269026 U CN218269026 U CN 218269026U
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Abstract
The utility model discloses a combined cycle high pressure feedwater pressure control structure, including conveying unit, including the high-pressure feed-water pump body, set up in the inlet tube of high-pressure feed-water pump body end of intaking, and set up in the outlet pipe of high-pressure feed-water pump body water outlet end. The utility model discloses beneficial effect does: the high-pressure feed water pump body is used for being matched with the water inlet pipe to output an external boiler water source to the inner cavity of the water outlet pipe and outputting the external boiler water source to the inner cavity of the conveying pipe through the inner cavity of the water outlet pipe.
Description
Technical Field
The utility model relates to a waste heat boiler technical field, especially a combined cycle high pressure feedwater pressure control structure.
Background
The waste heat boiler is composed of a boiler barrel, a movable smoke hood, a boiler mouth section flue, an inclined 1 section flue, an inclined 2 section flue, a last 1 section flue, a last 2 section flue, a charging pipe (discharging chute) groove, an oxygen gun mouth, a nitrogen sealing device, a nitrogen sealing plug, an inlet hole, a micro-differential pressure taking device, a flue support, a hanger and the like, and is divided into six circulation loops.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems with the prior art combined cycle high pressure feedwater pressure control structures.
Therefore, the utility model aims to solve the problem that there is the overshoot phenomenon in the high-pressure economizer inlet differential pressure valve of exhaust-heat boiler high-pressure water supply system, has resulted in economizer access & exit pressure fluctuation to cause high-pressure feedwater governing valve, high-pressure feed pump scoop pipe frequent action, the system is unstable.
In order to solve the technical problem, the utility model provides a following technical scheme: a combined cycle high pressure feed water pressure control structure comprises,
the conveying unit comprises a high-pressure water feed pump body, a water inlet pipe arranged at the water inlet end of the high-pressure water feed pump body and a water outlet pipe arranged at the water outlet end of the high-pressure water feed pump body;
main part unit, including the conveyer pipe, set up in the outlet pipe is kept away from the one end of high-pressure water-feeding pump body, set up in the left first connecting pipe of conveyer pipe, set up in first connecting pipe is kept away from the turbine air cooler of conveyer pipe one end, set up in turbine air cooler goes out the second connecting pipe of water end, set up in the conveyer pipe is kept away from the high-pressure economizer of outlet pipe one end, set up in the pressure pipe of high-pressure economizer play water end, set up in the pressure pipe is kept away from high-pressure economizer one end with the second connecting pipe is kept away from the third connecting pipe of turbine air cooler one end, set up in the water-feeding valve on third connecting pipe surface, set up in the steam drum jar of the third connecting pipe other end, set up in the high-pressure steam pipe at steam drum jar top, and set up in the entry valve on conveyer pipe surface.
As an optimized scheme of combined cycle high pressure feedwater pressure control structure, wherein: the water inlet end of the high-pressure water feed pump body is communicated with the water inlet pipe.
As a preferred scheme of combined cycle high pressure feedwater pressure control structure, wherein: and the water outlet end of the high-pressure water feed pump body is communicated with the water outlet pipe.
As a preferred scheme of combined cycle high pressure feedwater pressure control structure, wherein: and one end of the water outlet pipe, which is far away from the high-pressure water feed pump body, is communicated with the conveying pipe.
As an optimized scheme of combined cycle high pressure feedwater pressure control structure, wherein: the left side of the conveying pipe is communicated with the first connecting pipe.
As an optimized scheme of combined cycle high pressure feedwater pressure control structure, wherein: the other end of the first connecting pipe is communicated with the turbine air cooler.
As an optimized scheme of combined cycle high pressure feedwater pressure control structure, wherein: and the water outlet end of the turbine air cooler is communicated with the second connecting pipe.
As a preferred scheme of combined cycle high pressure feedwater pressure control structure, wherein: and one end of the conveying pipe, which is far away from the water outlet pipe, is communicated with the high-pressure economizer.
As a preferred scheme of combined cycle high pressure feedwater pressure control structure, wherein: and the water outlet end of the high-pressure economizer is communicated with the pressure pipe.
As an optimized scheme of combined cycle high pressure feedwater pressure control structure, wherein: the one end of second connecting pipe with the one end of manometer pipe all with the third connecting pipe intercommunication, the other end of third connecting pipe with the steam drum jar intercommunication, the steam drum jar with high-pressure steam pipe intercommunication.
The utility model discloses beneficial effect does: the high-pressure water supply pump body is used for being matched with the water inlet pipe to output an external boiler water source to the inner cavity of the water outlet pipe and outputting the external boiler water source to the inner cavity of the conveying pipe through the inner cavity of the water outlet pipe, the high-pressure economizer is used for heating boiler water supply to a heating surface of saturated water under the pressure of a steam drum, and the high-pressure water supply pump body can absorb the heat of high-temperature flue gas to reduce the smoke exhaust temperature of the flue gas.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor. Wherein:
fig. 1 is an overall structural view of a combined-cycle high-pressure feedwater pressure control structure.
Fig. 2 is a connection structure diagram of a high-pressure water feed pump body, a water inlet pipe and a water outlet pipe of a combined-cycle high-pressure water feed pressure control structure.
Fig. 3 is a partially enlarged structural view of a portion a in fig. 1 of the combined-cycle high-pressure feedwater pressure control structure.
Fig. 4 is a connection structure diagram of a second connection pipe and a drum tank of the combined-cycle high-pressure feedwater pressure control structure.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1-4, for the first embodiment of the present invention, this embodiment provides a combined cycle high pressure water supply pressure control structure, which includes a conveying unit 100, including a high pressure water supply pump body 101, a water inlet pipe 102 disposed at the water inlet end of the high pressure water supply pump body 101, and a water outlet pipe 103 disposed at the water outlet end of the high pressure water supply pump body 101.
The main unit 200 comprises a conveying pipe 201, one end of the conveying pipe 201, which is arranged at the water outlet pipe 103 and is far away from the high-pressure water feed pump body 101, a first connecting pipe 202 arranged at the left side of the conveying pipe 201, a turbine air cooler 203 arranged at one end of the first connecting pipe 202 and is far away from the conveying pipe 201, a second connecting pipe 204 arranged at the water outlet end of the turbine air cooler 203, a high-pressure economizer 205 arranged at one end of the conveying pipe 201 and is far away from the water outlet pipe 103, a pressure pipe 206 arranged at the water outlet end of the high-pressure economizer 205, a third connecting pipe 207 arranged at one end of the pressure pipe 206 and is far away from one end of the turbine air cooler 203 and the second connecting pipe 204, a water feed valve 208 arranged on the surface of the third connecting pipe 207, a steam drum tank 209 arranged at the other end of the third connecting pipe 207, a high-pressure steam pipe 210 arranged at the top of the steam drum tank 209, and an inlet valve 211 arranged on the surface of the conveying pipe 201.
Specifically, the water inlet end of the high-pressure water feed pump body 101 is communicated with the water inlet pipe 102.
Preferably, the water outlet end of the high-pressure water supply pump body 101 is communicated with the water outlet pipe 103.
Preferably, one end of the water outlet pipe 103, which is far away from the high-pressure water feed pump body 101, is communicated with the delivery pipe 201.
When the device is used, when the device is in normal operation, if the drum water level changes, the water level changes along with the fluctuation of the evaporation amount and the water supply amount, the water level of the drum tank 209 decreases, so that the water supply valve 208 is opened greatly, the pressure of the pressure pipe 206 connected with the outlet of the high-pressure economizer 205 decreases, the pressure in the conveying pipe 201 at the inlet of the high-pressure economizer 205 decreases, and the front-back differential pressure of the high-pressure economizer 205 becomes larger, at this time, after the pressure at the inlet of the high-pressure economizer 205 decreases, the high-pressure water supply pump body 101 is opened greatly, the high-pressure water supply pump body 101 is closer to the conveying pipe 201 at the inlet of the high-pressure economizer 205, so that the pressure in the conveying pipe 201 increases faster, the pressure of the conveying pipe 206 increases faster than the pressure at the outlet of the high-pressure economizer 205, and reaches a control value in advance.
Example 2
Referring to fig. 1 and 3, in order to illustrate the second embodiment of the present invention, this embodiment is based on the previous embodiment:
preferably, the left side of the delivery pipe 201 communicates with the first connection pipe 202.
Preferably, the other end of the first connecting pipe 202 communicates with the turbine air cooler 203.
Preferably, the water outlet end of the turbine air cooler 203 is connected to the second connection pipe 204.
When the high-pressure water supply pump is used, the change time of the conveying pipe 201 and the pressure pipe 206 is shortened, the change amplitude of the differential pressure of the conveying pipe 201 at the water inlet end and the pressure pipe 206 at the water outlet end of the high-pressure economizer 205 is obviously reduced, the control pressure of the high-pressure water supply pump body 101 cannot contain the adjusting process of the surface inlet valve 211 of the conveying pipe 201 at the inlet end of the high-pressure economizer 205 any more, the superposition effect is avoided, and the automatic adjustment of the high-pressure steam-water system is more stable.
Example 3
Referring to fig. 1 to 4, in order to illustrate a third embodiment of the present invention, the embodiment is based on the first two embodiments:
specifically, one end of the delivery pipe 201 far away from the water outlet pipe 103 is communicated with the high-pressure economizer 205.
Specifically, the water outlet end of the high-pressure economizer 205 is communicated with a pressure pipe 206.
Preferably, one end of the second connection pipe 204 and one end of the pressure pipe 206 are both communicated with a third connection pipe 207, the other end of the third connection pipe 207 is communicated with a drum tank 209, and the drum tank 209 is communicated with a high pressure steam pipe 210.
When the device is used, when the device is in normal operation, if the water level of a steam drum changes, the water level changes along with the fluctuation of evaporation amount and water supply amount, the water level of a steam drum tank 209 drops, so that a water supply valve 208 is opened greatly, the pressure of a pressure pipe 206 connected with the outlet of a high-pressure economizer 205 drops, the pressure in a conveying pipe 201 at the inlet of the high-pressure economizer 205 drops, and the front-back differential pressure of the high-pressure economizer 205 becomes large, at the moment, after the pressure at the inlet of the high-pressure economizer 205 drops, the high-pressure water feed pump body 101 is opened greatly, the high-pressure water feed pump body 101 is closer to the conveying pipe 201 at the inlet of the high-pressure economizer 205, so that the pressure of the conveying pipe 201 rises faster, the pressure of the pressure pipe 206 rises faster than the pressure of the pressure pipe 206 at the outlet of the high-pressure economizer 205 in advance, a control value is reached in advance, the change time of the conveying pipe 201 and the pressure pipe 206 is shortened, so that the differential pressure change amplitude of the conveying pipe 201 at the water inlet end and the pressure pipe 206 at the water inlet of the high-pressure economizer 205 is obviously reduced, and the control pressure of the high-pressure water feed pump body 101 does not contain the surface of the conveying pipe 201 at the inlet of the high-economizer 205, thereby preventing the high-pressure economizer from stabilizing the automatic adjustment effect and stabilizing the steam-water system from tending to stabilize.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or substituted by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. A combined cycle high pressure feedwater pressure control structure which characterized in that: comprises the steps of (a) preparing a substrate,
the conveying unit (100) comprises a high-pressure water feed pump body (101), a water inlet pipe (102) arranged at the water inlet end of the high-pressure water feed pump body (101), and a water outlet pipe (103) arranged at the water outlet end of the high-pressure water feed pump body (101);
main unit (200), including conveyer pipe (201), set up in outlet pipe (103) are kept away from the one end of high pressure feed water pump body (101), set up in conveyer pipe (201) left first connecting pipe (202), set up in first connecting pipe (202) are kept away from turbine air cooler (203) of conveyer pipe (201) one end, set up in second connecting pipe (204) of turbine air cooler (203) play water end, set up in conveyer pipe (201) are kept away from high-pressure economizer (205) of outlet pipe (103) one end, set up in pressure pipe (206) of high-pressure economizer (205) play water end, set up in pressure pipe (206) are kept away from high-pressure economizer (205) one end with second connecting pipe (204) are kept away from third connecting pipe (207) of turbine air cooler (203) one end, set up in water feeding valve (208) on third connecting pipe (207) surface, set up in package jar (209) of the third connecting pipe (207) other end, set up in high-pressure steam pipe (210) at package jar (209) top, and set up in the entry valve (201) surface.
2. The combined-cycle high-pressure feedwater pressure control structure of claim 1, wherein: the water inlet end of the high-pressure water feed pump body (101) is communicated with the water inlet pipe (102).
3. The combined-cycle high-pressure feedwater pressure control structure of claim 2, wherein: the water outlet end of the high-pressure water feed pump body (101) is communicated with the water outlet pipe (103).
4. A combined cycle high pressure feedwater pressure control structure as claimed in claim 3 wherein: one end, far away from the high-pressure water feed pump body (101), of the water outlet pipe (103) is communicated with the conveying pipe (201).
5. The combined-cycle high-pressure feedwater pressure control structure of any of claims 2 to 4, wherein: the left side of the delivery pipe (201) communicates with the first connection pipe (202).
6. The combined-cycle high-pressure feedwater pressure control structure of claim 5, wherein: the other end of the first connecting pipe (202) communicates with the turbine air cooler (203).
7. The combined-cycle high-pressure feedwater pressure control structure of claim 6, wherein: the water outlet end of the turbine air cooler (203) is communicated with the second connecting pipe (204).
8. The combined-cycle high-pressure feedwater pressure control structure of claim 7, wherein: one end of the conveying pipe (201), which is far away from the water outlet pipe (103), is communicated with the high-pressure economizer (205).
9. The combined-cycle high-pressure feedwater pressure control structure of claim 8, wherein: the water outlet end of the high-pressure economizer (205) is communicated with the pressure pipe (206).
10. The combined-cycle high-pressure feedwater pressure control structure of any of claims 6 to 9, wherein: one end of the second connecting pipe (204) and one end of the pressure pipe (206) are communicated with the third connecting pipe (207), the other end of the third connecting pipe (207) is communicated with the steam drum tank (209), and the steam drum tank (209) is communicated with the high-pressure steam pipe (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220877023.0U CN218269026U (en) | 2022-04-13 | 2022-04-13 | Combined cycle high-pressure water supply pressure control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220877023.0U CN218269026U (en) | 2022-04-13 | 2022-04-13 | Combined cycle high-pressure water supply pressure control structure |
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| Publication Number | Publication Date |
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| CN218269026U true CN218269026U (en) | 2023-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220877023.0U Active CN218269026U (en) | 2022-04-13 | 2022-04-13 | Combined cycle high-pressure water supply pressure control structure |
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| CN (1) | CN218269026U (en) |
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