A deoxygenation system and deoxygenation component thereof
By connecting the exhaust steam of the steam pump to the deaerator main pipe to the reboiling interface, the exhaust steam enters the reboiling pipe inside the deaerator and heats the deep water in the deaerator, solving the problem of low convection heat exchange efficiency of the existing deaerator system in the low load stage at night, achieving more efficient heat utilization and heat loss reduction.
Patent Information
- Application Number
- CN202421316565.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-11
AI Technical Summary
During the low-load stage at night, the existing deoxygenation system heats the water of the spare deaerator through the exhaust steam of the steam pump, but the exhaust steam of the steam pump only heats the upper water layer of the spare deaerator, which is not conducive to convection heat exchange.
By connecting the steam exhaust of the steam pump to the deaerator main pipe to the reboiling interface, the exhaust steam enters the reboiling pipe inside the deaerator, heats the deep water in the deaerator, improves the convection heat exchange efficiency, and controls the use of heat energy and reduces heat loss through the connection between the reboiling valve and the self-use steam pipe.
Effective heating of deep water in the deaerator during the low loading stage at night is achieved, the convection heat transfer efficiency of the deaerator system is improved, and the heat loss is reduced by closing the empty exhaust valve.
Smart Images
Figure CN222718184U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water deoxygenation equipment treatment, in particular to a deoxygenation system and a deoxygenation component thereof. Background Art
[0002] The deaerator is one of the key equipment of the boiler and heating system. The deaerator system in the prior art generally includes a main deaerator and a standby deaerator. During the low-load stage at night, the exhaust steam of the steam-driven pump needs to heat the water of the standby deaerator for use during the day. However, the exhaust steam of the steam-driven pump only heats the upper water layer of the standby deaerator, which is not conducive to convective heat exchange. Utility Model Content
[0003] In order to solve the technical problems existing in the background technology, the utility model proposes a deoxygenation system and a deoxygenation component thereof.
[0004] The utility model provides a deoxidation component, including: a deoxidizer and a self-use steam pipe, the standby deoxidizer is provided with a slag cooler water inlet, an axle water inlet, a desalted water inlet, a reboiling interface, a feed water pump recirculation inlet, a steam inlet, a water discharge inlet, a self-use steam inlet, a steam pump steam inlet and a steam exhaust port to the air;
[0005] The slag cooler water inlet is used for the slag cooler water; the shaft water inlet is used for the shaft water; the desalted water inlet is used to connect the desalted water source; the private steam inlet and the reboiling interface are respectively connected to the private steam inlet pipe, and a reboiling valve is connected between the reboiling interface and the private steam inlet pipe; the main steam inlet valve is connected between the private steam inlet and the private steam inlet pipe;
[0006] The air exhaust port is used to exhaust steam into the air, and is connected to an air exhaust valve; the drain port is connected to a drain valve, and the drain valve is connected to a drain tank;
[0007] The outlet water port is provided with an outlet water valve, the outlet water valve is connected to a steam-driven pump, the exhaust port of the steam-driven pump is connected to the steam-driven pump exhaust to the deaerator main pipe, the steam-driven pump exhaust to the deaerator main pipe is respectively connected to the steam inlet and the reboiling interface of the steam-driven pump, the steam-driven pump exhaust to the deaerator main pipe is provided with a deaerator isolation valve, the steam-driven pump exhaust to the deaerator main pipe downstream of the deaerator isolation valve is provided with a drain interface, the drain interface is connected to a drain valve, and a drain pump is connected between the drain valve and the drain tank.
[0008] Preferably, the water outlet valve is also connected to a low-pressure water supply isolation valve, and the low-pressure water supply isolation valve is connected to a low-pressure water supply mother pipe.
[0009] Preferably, the deaerator is also provided with a water feed pump recirculation interface, the low-pressure water feed isolation valve is also connected to the water feed pump, the water feed pump is respectively connected to the first valve and the second valve, the first valve is connected to the water feed pump recirculation main pipe, and the water feed pump recirculation main pipe is connected to the water pump recirculation interface; the second valve is connected to the high-pressure water feed isolation valve, and the high-pressure water feed isolation valve is connected to the high-pressure water feed main pipe.
[0010] Preferably, the drain outlet of the pneumatic pump is connected to the recirculation main pipe of the water supply pump.
[0011] Preferably, the deaerator is further provided with a steam balance port, and the steam balance port is connected to a steam balance pipe.
[0012] The utility model also proposes a deoxygenation system, comprising a plurality of deoxygenation components as described in any one of the above items, wherein one deoxygenation component serves as a main deoxygenation component, and the remaining deoxygenation components serve as standby deoxygenation components.
[0013] In the utility model, the proposed deaerator system and deaerator assembly connect the steam pump exhaust to the deaerator main pipe to the reboiling interface, so that the exhaust steam of the steam pump can enter the reboiling pipe inside the deaerator through the steam pump exhaust to the deaerator main pipe and the reboiling interface, so as to heat the deep water in the deaerator through the reboiling pipe, which is beneficial to the convective heat exchange efficiency; at the same time, the air exhaust valve can be closed to reduce heat loss; in addition, a reboiling valve is connected between the reboiling interface and the self-use steam supply pipe, The steam-driven pump exhaust to the deaerator main pipe is connected to the reboiling interface. When internal leakage occurs in the pipeline between the steam-driven pump exhaust to the deaerator main pipe and the self-use steam pipe and the reboiling valve, since the reboiling pipe connected to the reboiling interface inside the deaerator is an open pipe mouth, the pressure in the reboiling pipe is relatively small, and the leaking steam can be directly discharged from the reboiling pipe to the water tank of the deaerator, avoiding the high-pressure self-use steam from flowing back into the steam-driven pump exhaust to the deaerator main pipe, thereby avoiding the high-pressure self-use steam from flowing back into the turbine exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model provides a deoxygenation system and a schematic diagram of its structure. DETAILED DESCRIPTION
[0015] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0016] Reference Figure 1The utility model proposes a deoxidation component, including: a deoxidizer and a self-use steam pipe, the standby deoxidizer is provided with a slag cooler water inlet, an axle water inlet, a desalted water inlet, a reboiling interface, a feed water pump recirculation inlet, a steam inlet, a drain outlet, a self-use steam inlet, a steam pump steam inlet and a steam exhaust port to the air;
[0017] The slag cooler water inlet is used for the slag cooler water; the shaft water inlet is used for the shaft water; the desalted water inlet is used to connect the desalted water source; the private steam inlet and the reboiling interface are respectively connected to the private steam inlet pipe, and a reboiling valve is connected between the reboiling interface and the private steam inlet pipe; the main steam inlet valve is connected between the private steam inlet and the private steam inlet pipe;
[0018] The air exhaust port is used to exhaust steam into the air, and is connected to an air exhaust valve; the water discharge port is connected to a water discharge valve, and the water discharge valve is connected to a drain tank;
[0019] The outlet water port is provided with an outlet water valve, the outlet water valve is connected to a steam-driven pump, the exhaust port of the steam-driven pump is connected to the steam-driven pump exhaust to the deaerator main pipe, the steam-driven pump exhaust to the deaerator main pipe is respectively connected to the steam inlet and the reboiling interface of the steam-driven pump, the steam-driven pump exhaust to the deaerator main pipe is provided with a deaerator isolation valve, the steam-driven pump exhaust to the deaerator main pipe downstream of the deaerator isolation valve is provided with a drain interface, the drain interface is connected to a drain valve, and a drain pump is connected between the drain valve and the drain tank.
[0020] The utility model connects the steam pump exhaust to the deaerator main pipe to the reboiling interface, so that the exhaust steam of the steam pump can enter the reboiling pipe inside the deaerator through the steam pump exhaust to the deaerator main pipe and the reboiling interface, so as to heat the deep water in the deaerator through the reboiling pipe, which is beneficial to the convective heat exchange efficiency; at the same time, the air exhaust valve can be closed to reduce heat loss; in addition, a reboiling valve is connected between the reboiling interface and the self-use steam supply pipe, and the steam pump exhaust to the deaerator main pipe is connected to the reboiling pipe. The main pipe of the deaerator is connected to the reboiling interface. When internal leakage occurs in the pipeline between the steam-driven pump exhausting steam to the deaerator main pipe and the self-use steam pipe and the reboiling valve, since the reboiling pipe connected to the reboiling interface inside the deaerator is an open pipe mouth, the pressure in the reboiling pipe is relatively small, and the leaking steam can be directly discharged from the reboiling pipe to the water tank of the deaerator, avoiding the high-pressure self-use steam from flowing back into the steam-driven pump exhausting steam to the deaerator main pipe, thereby avoiding the high-pressure self-use steam from flowing back into the turbine exhaust pipe.
[0021] In this embodiment, the water outlet valve is also connected to a low-pressure water supply isolation valve, and the low-pressure water supply isolation valve is connected to a low-pressure water supply mother pipe.
[0022] In a further embodiment, a water feed pump recirculation interface is also provided on the deaerator, the low-pressure water feed isolation valve is also connected to the water feed pump, the water feed pump is respectively connected to a first valve and a second valve, the first valve is connected to a water feed pump recirculation main pipe, and the water feed pump recirculation main pipe is connected to the water pump recirculation interface; the second valve is connected to a high-pressure water feed isolation valve, and the high-pressure water feed isolation valves are respectively connected to the high-pressure water feed main pipe to facilitate water circulation and save water.
[0023] In a further embodiment, the discharge port of the pneumatic pump is connected to the recirculation main pipe of the water supply pump to facilitate water circulation and save water.
[0024] In this embodiment, the deaerator is further provided with a steam balance port, and the steam balance port is connected with a steam balance pipe.
[0025] The utility model also proposes a deoxygenation system, comprising a plurality of deoxygenation components as described in any one of the above items, wherein one deoxygenation component serves as a main deoxygenation component, and the remaining deoxygenation components serve as standby deoxygenation components.
[0026] Among them, the steam balance ports in all deaerator components are connected to the same steam balance pipe, the deaerators of the standby deaerator components are all provided with water balance interfaces, the water balance interfaces are connected to the same water balance pipe, and the drain tanks are the same drain tank.
[0027] In specific implementation, at night when the load is low, the exhaust steam of the pump of the standby deaerator is discharged to the main pipe of the deaerator and the reboiling interface through the steam-driven pump and enters the reboiling pipe inside the deaerator, so as to heat the deep water in the deaerator through the reboiling pipe and increase the temperature of the water in the deaerator;
[0028] During the high-load stage during the day, the deaerator is operated for deoxygenation, and the deep water heated by the reboiling tube at night from other standby deaerators is discharged to the drain tank through the drain valve; the deaerator isolation valve of the operating deaerator is closed, and the deep water heated by the reboiling tube at night in the drain tank is replenished to the operating deaerator through the steam inlet and reboiling interface of the pneumatic pump through the drain valve and drain pump of the operating deaerator, thereby reducing the amount of steam used for heating the operating deaerator.
[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A deoxygenation system and a deoxygenation component thereof, characterized in that: include: Deaerator and self-use steam inlet pipe, the standby deaerator is equipped with slag cooler water inlet, shaft feeder water inlet, desalted water inlet, reboiling interface, feed water pump recirculation inlet, steam inlet, drain outlet, water outlet, self-use steam inlet, steam pump steam inlet and air exhaust port; The slag cooler water inlet is used for the slag cooler water; the shaft water inlet is used for the shaft water; the desalted water inlet is used to connect the desalted water source; the private steam inlet and the reboiling interface are respectively connected to the private steam inlet pipe, and a reboiling valve is connected between the reboiling interface and the private steam inlet pipe; the main steam inlet valve is connected between the private steam inlet and the private steam inlet pipe; The air exhaust port is used to exhaust steam into the air, and is connected to an air exhaust valve; the drain port is connected to a drain valve, and the drain valve is connected to a drain tank; The outlet water port is provided with an outlet water valve, the outlet water valve is connected to a steam-driven pump, the exhaust port of the steam-driven pump is connected to the steam-driven pump exhaust to the deaerator main pipe, the steam-driven pump exhaust to the deaerator main pipe is respectively connected to the steam inlet and the reboiling interface of the steam-driven pump, the steam-driven pump exhaust to the deaerator main pipe is provided with a deaerator isolation valve, the steam-driven pump exhaust to the deaerator main pipe downstream of the deaerator isolation valve is provided with a drain interface, the drain interface is connected to a drain valve, and a drain pump is connected between the drain valve and the drain tank.
2. The deoxygenation system and deoxygenation component thereof according to claim 1, characterized in that: The water outlet valve is also connected to a low-pressure water supply isolation valve, and the low-pressure water supply isolation valve is connected to a low-pressure water supply mother pipe.
3. The deoxygenation system and deoxygenation component thereof according to claim 2, characterized in that: The deaerator is also provided with a water feed pump recirculation interface, and the low-pressure water feed isolation valve is also connected to the water feed pump, and the water feed pump is respectively connected to the first valve and the second valve, and the first valve is connected to the water feed pump recirculation main pipe, and the water feed pump recirculation main pipe is connected to the water pump recirculation interface; the second valve is connected to the high-pressure water feed isolation valve, and the high-pressure water feed isolation valve is connected to the high-pressure water feed main pipe.
4. The deoxygenation system and deoxygenation component thereof according to claim 3, characterized in that: The discharge port of the steam-driven pump is connected to the recirculation main pipe of the water supply pump.
5. The deoxygenation system and deoxygenation component thereof according to claim 1, characterized in that: The deaerator is also provided with a steam balance port, which is connected to a steam balance pipe.
6. A deoxygenation system, characterized in that: It comprises a plurality of deoxygenation components according to any one of claims 1 to 5, wherein one deoxygenation component serves as a main deoxygenation component and the remaining deoxygenation components serve as backup deoxygenation components.