CN217423216U - Vacuum deoxidization system - Google Patents
Vacuum deoxidization system Download PDFInfo
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- CN217423216U CN217423216U CN202220093905.8U CN202220093905U CN217423216U CN 217423216 U CN217423216 U CN 217423216U CN 202220093905 U CN202220093905 U CN 202220093905U CN 217423216 U CN217423216 U CN 217423216U
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Abstract
The utility model belongs to the technical field of the deoxidization, concretely relates to vacuum deoxidization system, including turbo generator set and deaerator, turbo generator set includes steam turbine and generator, the deaerator includes deoxidization water pitcher and deoxidization tower, the extraction opening of water jet air ejector one is connected to the gas vent of deoxidization tower, the end of intaking of water jet air ejector one is connected with water jet pump one, overheated steam pipe is connected to the steam inlet of steam turbine, the play steam port of steam turbine is connected to the condenser, the delivery port of condenser is connected to the storage water tank, the extraction opening of water jet air ejector two is connected to the gas outlet of condenser, the end of intaking of water jet air ejector two is connected with water jet pump two, the delivery port of inlet tube connection storage water tank of water jet pump one and water jet pump two, the water outlet end of water jet air ejector one and water jet air ejector two is connected to the return water mouth of storage water tank. This vacuum deoxidization system can improve deoxidization efficiency and stability, solves the unbalanced and unqualified problem of dissolved oxygen index of oxygen-eliminating device water level, reduces energy consumption cost and overhaul of the equipments cost.
Description
Technical Field
The utility model belongs to the technical field of the deoxidization, concretely relates to vacuum deoxidization system.
Background
With the increasing total output of the cement industry, the utilization of the waste heat of the tail gas of the cement production line for boiler steam power generation becomes a necessary trend for the environmental protection development of the cement production industry in recent years. The deaerator is one of key devices in a boiler steam system and is mainly used for removing dissolved oxygen in system feed water, so that corrosion of a boiler feed water pipe, an economizer and accessory equipment of the economizer is reduced. The existing deoxidization system mainly has the problems of high system operation power consumption, low deoxidization efficiency, unstable vacuum maintenance, unbalanced water level of a deoxidization device, unqualified dissolved oxygen index in water for a boiler, equipment corrosion, high fault maintenance rate and the like, and even influences the stable operation and the capacity exertion of the whole cement production line.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a vacuum deoxygenation system, which improves the stability of the vacuum deoxygenation system on the premise of ensuring the deoxygenation efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a vacuum deoxygenation system comprises a turbo-generator unit and a deoxygenator in a waste heat power generation system, wherein the turbo-generator unit comprises a steam turbine and a generator connected with the steam turbine, the deaerator comprises a deaerating water tank and a deaerating tower arranged on the top of the deaerating water tank, an air outlet of the deaerating tower is connected with an air pumping hole of the water jet air ejector I, the water inlet end of the water jet air ejector I is connected with a water jet pump I, the steam inlet of the steam turbine is connected with an overheated steam pipe, the steam outlet of the steam turbine is connected with a condenser, the water outlet of the condenser is connected to the water storage tank, the air outlet of the condenser is connected with the air pumping port of the water jet air pump II, the water inlet end of the water jet air ejector II is connected with a water jet pump II, the water inlet pipes of the water jet pump I and the water jet pump II are both connected with the water outlet of the water storage tank, and the water outlet ends of the first water jet air ejector and the second water jet air ejector are connected to a water return port of the water storage tank.
Furthermore, a make-up water inlet and a condensed water inlet are formed in the upper portion of the deaerating tower, and the condensed water inlet is connected with a water outlet of the first water jet pump.
Furthermore, an upper heating steam inlet and a lower heating steam inlet are sequentially arranged below a make-up water inlet and a condensed water inlet of the deaerator from top to bottom.
Furthermore, a deoxygenated water outlet is formed in the bottom of the deoxygenated water tank, deoxygenated water is provided for a boiler steam system, and corrosion of a boiler water supply pipe, an economizer and accessory equipment of the economizer is reduced.
Furthermore, a glass tube liquid level meter is arranged on the outer side of the deoxygenation water tank, so that the water level height in the deoxygenation water tank can be conveniently and timely controlled.
Furthermore, the condenser is a water-cooling condenser, a cooling water inlet and a cooling water outlet are formed in the condenser, and a cooling tube bundle is arranged in the condenser.
The utility model discloses still including other subassemblies that can make its normal use, be the conventional means in this field, in addition, the utility model discloses in add the device or the subassembly of injecing, if: the steam turbine, the deaerating tower, the water jet air extractor, the water jet pump, all pipelines, instruments, valve settings and the like all adopt the prior art in the field.
The utility model has the advantages as follows:
the utility model provides a vacuum deoxidization system can effectively improve deoxidization efficiency and stability, under the prerequisite of ensureing deoxidization efficiency, and is more energy-conserving, environmental protection to can solve the uneven and unqualified problem of dissolved oxygen index of oxygen-eliminating device water level well, reduce energy consumption cost and overhaul of the equipments cost.
Drawings
FIG. 1 is a schematic diagram of a vacuum oxygen removal system in an embodiment.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below with reference to specific embodiments, and it should be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention.
Examples
As shown in figure 1, the vacuum deoxygenation system comprises a steam turbine generator unit and a deoxygenator in a waste heat power generation system, the steam turbine generator unit comprises a steam turbine 1 and a generator 2 connected with the steam turbine generator unit, the deaerator comprises a deaerating water tank 3 and a deaerating tower 4 arranged at the top of the deaerator, an air outlet of the deaerator is connected with an air exhaust port of a first water jet air ejector 5, a water inlet end of the first water jet air ejector is connected with a first water jet pump 6, the steam inlet of the steam turbine is connected with a superheated steam pipe, the steam outlet of the steam turbine is connected with a condenser 7, the water outlet of the condenser is connected to a water storage tank 8, the air outlet of the condenser is connected with the air pumping hole of a water jet air pump II 9, the water inlet end of the water jet air ejector II is connected with a water jet pump II 10, the water inlet pipes of the water jet pump I and the water jet pump II are both connected with the water outlet of the water storage tank, and the water outlet ends of the first water jet air extractor and the second water jet air extractor are connected to a water return port of the water storage tank.
And a make-up water inlet and a condensed water inlet are formed in the upper part of the deaerating tower, and the condensed water inlet is connected with a water outlet of the first water jet pump.
And an upper heating steam inlet and a lower heating steam inlet are sequentially arranged below the make-up water inlet and the condensed water inlet of the deaerator from top to bottom.
The bottom of the deaerating water tank is provided with a deaerating water outlet, deaerating water is provided for a boiler steam system, and corrosion of a boiler water supply pipe, an economizer and accessory equipment of the economizer is reduced.
The deoxidization water pitcher outside is provided with glass pipe level gauge 11, is convenient for in time control deoxidization water pitcher tank water level height.
The condenser is a water-cooling condenser, a cooling water inlet and a cooling water outlet are formed in the condenser, and a cooling tube bundle is arranged in the condenser.
The vacuum deoxygenation system has the advantages that the water jet pump and the water jet air ejector are matched to suck gas in the deoxygenator, so that the interior of the deoxygenator is in a negative pressure vacuum state in the operation process, dissolved gas in water is promoted to be released more quickly and efficiently, dissolved oxygen in water is removed more thoroughly, vacuum degree and water level in the deoxygenator can be maintained by continuous operation of the water jet pump, stable operation of the vacuum deoxygenation system and a boiler steam system using deoxygenated water is facilitated, the dissolved oxygen of the deoxygenated water in the deoxygenation water tank can reach the standard, corrosion to each device of the boiler steam system is reduced, and the failure rate of the device is reduced; the water jet air ejector is ideal negative pressure pumping equipment with strong pumping capacity, large safety margin and low energy and power consumption; in a similar way, the condenser is enabled to form negative pressure in the same way, the vacuum state in the steam turbine unit is maintained, the energy consumption of the steam turbine is reduced, and the power generation efficiency of the steam turbine unit is improved.
The technical solution of the present invention is not limited to the above-mentioned specific embodiments, and many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.
Claims (6)
1. The utility model provides a vacuum deoxidization system, includes turbo generator set and oxygen-eliminating device among the waste heat power generation system, turbo generator set includes the steam turbine and rather than the generator of being connected, the oxygen-eliminating device includes deoxidization water pitcher and sets up the oxygen-eliminating tower at its top, its characterized in that: the exhaust port of the deaerating tower is connected with the air pumping port of the first water jet air ejector, the water inlet end of the first water jet air ejector is connected with the first water jet pump, the steam inlet of the steam turbine is connected with the superheated steam pipe, the steam outlet of the steam turbine is connected to the condenser, the water outlet of the condenser is connected to the water storage tank, the air pumping port of the second water jet air ejector is connected to the air outlet of the condenser, the water inlet end of the second water jet air ejector is connected with the second water jet pump, the water inlet pipes of the first water jet pump and the second water jet pump are connected with the water outlet of the water storage tank, and the water outlet ends of the first water jet air ejector and the second water jet air ejector are connected to the water return port of the water storage tank.
2. The vacuum oxygen removal system of claim 1, wherein: and a make-up water inlet and a condensed water inlet are formed in the upper part of the deaerating tower, and the condensed water inlet is connected with a water outlet of the first water jet pump.
3. The vacuum oxygen removal system of claim 2, wherein: and an upper heating steam inlet and a lower heating steam inlet are sequentially arranged below the make-up water inlet and the condensed water inlet of the deaerator from top to bottom.
4. The vacuum oxygen removal system of claim 1, wherein: and a deoxygenated water outlet is formed in the bottom of the deoxygenated water tank.
5. The vacuum oxygen removal system of claim 1, wherein: and a glass tube liquid level meter is arranged outside the deoxygenation water tank.
6. The vacuum oxygen removal system of claim 1, wherein: the condenser is a water-cooling condenser, and a cooling water inlet and a cooling water outlet are arranged on the condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220093905.8U CN217423216U (en) | 2022-01-13 | 2022-01-13 | Vacuum deoxidization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220093905.8U CN217423216U (en) | 2022-01-13 | 2022-01-13 | Vacuum deoxidization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217423216U true CN217423216U (en) | 2022-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220093905.8U Active CN217423216U (en) | 2022-01-13 | 2022-01-13 | Vacuum deoxidization system |
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| Country | Link |
|---|---|
| CN (1) | CN217423216U (en) |
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2022
- 2022-01-13 CN CN202220093905.8U patent/CN217423216U/en active Active
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