CN217503630U - Condensate water recovery and deoxidization system for low-pressure boiler - Google Patents
Condensate water recovery and deoxidization system for low-pressure boiler Download PDFInfo
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- CN217503630U CN217503630U CN202220402118.7U CN202220402118U CN217503630U CN 217503630 U CN217503630 U CN 217503630U CN 202220402118 U CN202220402118 U CN 202220402118U CN 217503630 U CN217503630 U CN 217503630U
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Abstract
The utility model discloses a condensate recovery deoxidization system for low pressure boiler, the main design concept of the utility model lies in that the condensate water output by the condensate water recovery device is connected with a plurality of thermal deaerators with corresponding quantity through a plurality of branches, simultaneously, a soft water replenishing pipeline is introduced into each thermal deaerator, the pipelines of condensate water replenishing and soft water replenishing are converged and then are led into the thermal deaerator through a water replenishing valve, in addition, a steam space temperature detection mechanism is arranged in the deaerator and is associated with a steam valve electric signal connected into the thermal deaerator, furthermore, a plurality of thermal deaerators can be set into a certain quantity of condensate water special supply mode according to requirements, and the other quantity of thermal deaerators are set into a soft water special supply mode, thus, the multiple thermal deaerators cooperate, the deoxidization effect of the condensate water can be ensured when the condensate water is fully recovered, an energy-saving and safe operation mode is realized.
Description
Technical Field
The utility model relates to a condensate recovery field especially relates to a condensate recovery deoxidization system for low pressure boiler.
Background
The low-pressure boiler is a common equipment of tobacco cigarette processing enterprises, and supplies steam to generate condensed water after being used by users. At present, users mainly supplying steam generated by a low-pressure boiler are divided into two main types of auxiliary equipment, such as production equipment and constant-temperature and constant-humidity air conditioners or domestic heating equipment, and condensed water generated after the users use the steam can be partially or completely recycled through a corresponding recycling system.
However, the condensed water also meets the standard requirement of boiler water supply while being recovered safely, and the national "quality of industrial boiler" clearly stipulates that: the dissolved oxygen content of the feed water of the low-pressure steam boiler with the pressure less than or equal to 1.6MPa (gauge pressure) needs to be less than or equal to 0.1 mg/L. From this, need design one set of reasonable and energy-conserving comdenstion water recovery deoxidization scheme to make the comdenstion water when retrieving to the oxygen-eliminating device, guarantee that quality of water accords with the feedwater requirement of low pressure boiler.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention aims to provide a condensate recovery deoxygenation system for a low pressure boiler, thereby solving the aforementioned technical problems.
The utility model adopts the technical scheme as follows:
the utility model provides a comdenstion water recovery deoxidization system for low pressure boiler, wherein include: the system comprises a condensate water return main pipe, a condensate water recovery device, a deaerator condensate water inlet main pipe, a deaerator soft water inlet main pipe, a plurality of thermal deaerators, a deaerator condensate water inlet valve, a deaerator soft water inlet valve, a deaerator water supplementing valve, a deaerator steam inlet electric valve and a deaerator steam heating main pipe;
the condensate water return main pipe is used for conveying condensate water generated by a user to the condensate water recovery device;
the deaerator condensed water inlet main pipe is used for conveying condensed water from the condensed water recovery device to the thermal deaerator;
the deaerator soft water inlet main pipe is used for introducing soft water to the thermal deaerator from the outside;
the deaerator steam heating main pipe is used for providing steam for the thermal deaerator;
the condensate water recovery device is respectively connected with the condensate water return main pipe and the deaerator condensate water inlet main pipe, a branch pipe of the deaerator condensate water inlet main pipe is respectively connected with the deaerator condensate water inlet valve of each thermal deaerator, and a branch pipe of the deaerator soft water inlet main pipe is respectively connected with the deaerator soft water inlet valve of each thermal deaerator;
the deaerator condensed water inlet valve and the deaerator soft water inlet valve of each thermal deaerator are converged by a pipeline and then are connected into a cavity of the thermal deaerator through a deaerator water supplementing valve; each deaerator is also connected with the deaerator steam heating main pipe through the deaerator steam inlet electric valve;
each thermal deaerator is also provided with a temperature sensor in electrical signal correlation with the deaerator steam inlet electric valve, and the temperature sensor is used for detecting the temperature of a deaerator steam space;
the thermal deaerator is set to a condensed water special mode in a preset number, and the rest thermal deaerators are set to a soft water special mode.
In at least one possible implementation manner, the deaerator water replenishing valve adopts an electric control valve with a manual opening and closing mode.
In at least one possible implementation manner, the deaerator water supplementing valve is a manual valve.
In at least one possible implementation manner, the condensed water recovery device further comprises a high liquid level sensor arranged at the upper part and a low liquid level sensor arranged at the lower part.
In at least one possible implementation manner, the condensed water recovery device further comprises a condensed water pump respectively associated with the high liquid level sensor and the low liquid level sensor, and the condensed water pump is connected with the deaerator condensed water inlet main pipe.
In at least one possible implementation thereof, the recovery deoxygenation system further comprises a condensate emergency water inlet valve;
and a branch pipe of a deaerator condensed water inlet main pipe in front of the deaerator condensed water inlet valve is directly connected with an inner cavity of the thermal deaerator through the condensed water emergency inlet valve.
In at least one possible implementation manner, a condensed water emergency water inlet check valve is arranged in a pipeline between the condensed water emergency water inlet valve and the thermal deaerator.
In at least one possible implementation manner, each thermal deaerator is provided with a water level metering device.
The utility model discloses a main design conception lies in, the comdenstion water of exporting the comdenstion water recovery unit links to each other with many heating power oxygen-eliminating devices that correspond quantity through a plurality of branch roads, introduce soft water moisturizing pipeline for every heating power oxygen-eliminating device simultaneously, join the pipeline of comdenstion water moisturizing and soft water moisturizing back and let in heating power oxygen-eliminating device through the moisturizing valve, furthermore, be equipped with steam space temperature in the oxygen-eliminating device and with the steam valve electric signal relevance of inserting to heating power oxygen-eliminating device, and, can establish many heating power oxygen-eliminating devices as required into the comdenstion water special supply mode of certain quantity, and the heating power oxygen-eliminating device of all the other quantities establishes to the soft water special supply mode, thus, by many heating power oxygen-eliminating device cooperations, can be when carrying out abundant recovery to the comdenstion water, the deoxidization effect of guarantee, realize not only energy-conservation but also safe mode of operation.
Drawings
To make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a condensate recovery and oxygen removal system for a low-pressure boiler according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
The utility model provides an embodiment of a condensate water recovery deoxidization system for low pressure boiler, particularly, as shown in FIG. 1, wherein include: the system comprises a condensate water return main pipe 1, a condensate water recovery device 2, a deaerator condensate water inlet main pipe 4, a deaerator soft water inlet main pipe 5, a plurality of thermal deaerators 6, a deaerator condensate water inlet valve 9, a deaerator soft water inlet valve 10, a deaerator water supplementing valve 11, a deaerator steam inlet electric valve 12 and a deaerator steam heating main pipe 13;
the condensate water return main pipe 1 is used for conveying condensate water generated by a user to the condensate water recovery device 2;
the deaerator condensed water inlet main pipe 4 is used for conveying condensed water from the condensed water recovery device 2 to the thermal deaerator 6;
the deaerator soft water inlet main pipe 5 is used for introducing soft water from the outside to the thermal deaerator 6;
the deaerator steam heating main pipe 13 is used for providing steam for the thermal deaerator 6;
the condensate water recovery device 2 is respectively connected with the condensate water return main pipe 1 and the deaerator condensate water inlet main pipe 4, branch pipes of the deaerator condensate water inlet main pipe 4 are respectively connected with the deaerator condensate water inlet valves 9 of the thermal deaerators 6, and branch pipes of the deaerator soft water inlet main pipe 5 are respectively connected with the deaerator soft water inlet valves 10 of the thermal deaerators 6; the deaerator condensed water inlet valve 9 and the deaerator soft water inlet valve 10 of each thermal deaerator 6 are merged through a pipeline and then are connected into the cavity of the thermal deaerator 6 through the deaerator water replenishing valve 11 (understandably, water in the condensed water pipeline and water in the soft water pipeline are merged in the cavity, and the water supply of the condensed water pipeline and the soft water pipeline can be selected from two ways); each deaerator 6 is also connected with a deaerator steam heating main pipe 13 through a deaerator steam inlet electric valve 12;
each thermal deaerator 6 is also provided with a temperature sensor 14 in electrical signal correlation with the deaerator steam inlet electric valve 12, and the temperature sensor 14 is used for detecting the temperature of a deaerator steam space;
wherein, a preset number of the thermal deaerators 6 are set to a condensed water dedicated mode, and the rest of the thermal deaerators 6 are set to a soft water dedicated mode.
Based on the above embodiment, the condensed water in the deaerator condensed water inlet main pipe 4 all flows into the thermal deaerator 6 working in the condensed water dedicated mode, and the soft water in the deaerator soft water inlet main pipe 5 all flows into the thermal deaerator working in the soft water dedicated mode as daily water supplement.
In practical operation, for example, one of the thermal deaerators 6 may be set to a condensed water exclusive mode: closing a deaerator soft water inlet valve 10, opening a deaerator condensed water inlet valve 9, and fully opening a deaerator water supplementing valve 11 (on this basis, it can be considered that the deaerator water supplementing valve 11 adopts an electric control valve or a manual valve with a manual opening and closing mode, and the two valves can be respectively embodied as the difference between constant-pressure water supply and water supply according to the liquid level); the rest thermal deaerators 6 are set to be in a soft water special mode: the deaerator condensed water inlet valve 9 is closed, the deaerator soft water inlet valve 10 is opened, and the deaerator water replenishing valve 11 is opened according to the preset opening degree (as described above, an electric control valve can be preferably adopted to realize automatic opening according to the required opening degree).
The thermal deaerator is mainly related to the opening degree of a deaerator water supplementing valve and the deaerator steam space temperature in steam heating deaerator, when the thermal deaerator works in one of the two modes, for example, the temperature sensor 14 detects the deaerator steam space temperature as the opening and closing condition of the deaerator steam inlet electric valve 12, namely, the thermal deaerator is used for heating deaerator steam inlet control. Specifically, a large number of mature electric control technologies can be referred to, for example, a preset temperature threshold value is utilized, and the deaerator steam inlet electric valve 12 is connected to be opened for steam heating until the steam space temperature of the deaerator reaches the set threshold value.
The skilled in the art can understand that the quantity and the proportion of the thermal deaerators in the two working modes can be determined according to the amount of condensed water and the volume of the deaerator, and the working modes between the deaerators can be switched to be standby, so that efficient deaeration in the condensed water recovery process is realized. What is added here is that: in actual operation, the water spaces and the steam spaces of the multiple thermal deaerators are communicated through the water connecting pipes and the steam connecting pipes respectively, so that the liquid levels of the multiple deaerators are basically balanced, and meanwhile, the multiple deaerators can supply water for multiple low-pressure boilers, so that the main-standby switching can be realized.
With regard to the preferred operating principle of condensate recovery, reference may be made to the following: the user uses the produced comdenstion water of boiler steam to be responsible for 1 entering condensate recovery device 2 through the comdenstion water return, when the water level in condensate recovery device 2 reaches and predetermines high liquid level, (can detect by locating the high level sensor on 2 upper portions of condensate recovery device), the condensate pump 3 of condensate recovery device 2 below is located to the accessible is pumped the comdenstion water to the oxygen-eliminating device comdenstion water and is intake in charge 4 and carry to thermal oxygen-eliminating device 6 to the oxygen-eliminating device comdenstion water, when the liquid level of condensate recovery device 2 descends to predetermineeing low liquid level (can detect by the low level sensor who locates 2 lower parts of condensate recovery device), thereby realize in real time continuously retrieving the comdenstion water.
Furthermore, considering some special cases, for example, when the special condensate water mode of the thermal deaerator cannot meet the requirement, some or all of the thermal deaerators can be switched to the special soft water mode to operate, to this end, in other embodiments of the present invention, the branch pipe of the deaerator condensate water inlet main pipe 4 before the deaerator condensate water inlet valve 9 is directly connected to the thermal deaerator 6 through the condensate water emergency inlet valve 8. Therefore, under a special working condition, the condensate water emergency water inlet valve 8 of the thermal deaerator needing to be switched to the soft water special mode can be opened, at the moment, soft water replenishing of the thermal deaerators 6 is carried out according to a conventional flow, and on the other hand, the return water of the condensate water can directly enter the thermal deaerator 6 through the condensate water emergency water inlet valve 8, so that the mode can be understood as a standby working mode of a plurality of deaerators, and the normal recovery function of the condensate water is guaranteed under the special working condition. On the basis, further, a condensed water emergency water inlet check valve 7 can be arranged in a pipeline between the condensed water emergency water inlet valve 8 and the thermal deaerator 6 so as to limit the flowing direction of the condensed water.
Finally, it can also be stated that each of the thermal deaerators is provided with a water level metering device, so that an electrically controlled deaerator water replenishing valve can be associated or a person can be prompted to adjust the opening of the deaerator water replenishing valve to replenish the deaerator water level in some embodiments.
To sum up, the utility model discloses a main design conception lies in, the comdenstion water with condensate water recovery unit output links to each other with many heating power oxygen-eliminating devices that correspond quantity through a plurality of branch roads, introduce soft water moisturizing pipeline for every heating power oxygen-eliminating device simultaneously, join the pipeline of comdenstion water moisturizing and soft water moisturizing back and let in the heating power oxygen-eliminating device through the moisturizing valve, in addition, be equipped with steam space temperature detection mechanism and with the steam valve electric signal relevance of inserting to the heating power oxygen-eliminating device in the oxygen-eliminating device, and, can establish many oxygen-eliminating devices as required and establish the heating power special supply mode of certain quantity, and the heating power oxygen-eliminating device of all the other quantities establishes to the soft water special supply mode, and thus, by many heating power oxygen-eliminating device cooperations, can be when fully retrieving the comdenstion water, ensure the deoxidization effect of comdenstion water, realize not only energy-conservation but also safe operational mode.
In the embodiments of the present invention, "at least one" means one or more, "and" a plurality "means two or more. "and/or" describes the association relationship of the associated objects, and means that there may be three relationships, for example, a and/or B, and may mean that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and the like, refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, wherein a, b and c can be single or multiple.
The structure, features and effects of the present invention have been described in detail in the above embodiments shown in the drawings, but the above embodiments are only preferred embodiments of the present invention, and it should be noted that, the technical features related to the above embodiments and their preferred modes can be reasonably combined and assembled into various equivalent schemes by those skilled in the art without departing from or changing the design idea and technical effects of the present invention; therefore, the present invention is not limited to the embodiments shown in the drawings, and all the modifications or equivalent embodiments made according to the idea of the present invention should be within the scope of the present invention without departing from the spirit of the present invention.
Claims (8)
1. A condensate recovery oxygen removal system for a low pressure boiler, comprising: the system comprises a condensate water return main pipe, a condensate water recovery device, a deaerator condensate water inlet main pipe, a deaerator soft water inlet main pipe, a plurality of thermal deaerators, a deaerator condensate water inlet valve, a deaerator soft water inlet valve, a deaerator water supplementing valve, a deaerator steam inlet electric valve and a deaerator steam heating main pipe;
the condensate water return main pipe is used for conveying condensate water generated by a user to the condensate water recovery device;
the deaerator condensed water inlet main pipe is used for conveying condensed water from the condensed water recovery device to the thermal deaerator;
the deaerator soft water inlet main pipe is used for introducing soft water to the thermal deaerator from the outside;
the deaerator steam heating main pipe is used for providing steam for the thermal deaerator;
the condensate water recovery device is respectively connected with the condensate water return main pipe and the deaerator condensate water inlet main pipe, a branch pipe of the deaerator condensate water inlet main pipe is respectively connected with the deaerator condensate water inlet valve of each thermal deaerator, and a branch pipe of the deaerator soft water inlet main pipe is respectively connected with the deaerator soft water inlet valve of each thermal deaerator;
the deaerator condensed water inlet valve and the deaerator soft water inlet valve of each thermal deaerator are converged by a pipeline and then are connected into a cavity of the thermal deaerator through a deaerator water supplementing valve; each deaerator is also connected with the deaerator steam heating main pipe through the deaerator steam inlet electric valve;
each thermal deaerator is also provided with a temperature sensor in electrical signal correlation with the deaerator steam inlet electric valve, and the temperature sensor is used for detecting the temperature of a deaerator steam space;
the thermal deaerator is set to a condensed water special mode in a preset number, and the rest thermal deaerators are set to a soft water special mode.
2. The condensate recovery oxygen removal system for a low-pressure boiler of claim 1, wherein the oxygen remover water replenishing valve is an electrically controlled valve having a manual opening and closing mode.
3. The condensate recovery oxygen removal system for a low-pressure boiler of claim 1, wherein the oxygen remover water replenishing valve is a manual valve.
4. The condensate recovery oxygen removal system for a low-pressure boiler according to claim 1, wherein the condensate recovery apparatus further comprises a high liquid level sensor provided at an upper portion and a low liquid level sensor provided at a lower portion.
5. The condensate recovery oxygen removal system for a low pressure boiler of claim 4, further comprising a condensate pump respectively associated with the high level sensor and the low level sensor electrical signals, the condensate pump being connected to the oxygen remover condensate water inlet main.
6. The condensate recovery deoxygenation system for a low-pressure boiler of claim 1, further comprising a condensate emergency feed valve;
and a branch pipe of a deaerator condensed water inlet main pipe in front of the deaerator condensed water inlet valve is directly connected with an inner cavity of the thermal deaerator through the condensed water emergency inlet valve.
7. The condensate recovery oxygen removal system for a low-pressure boiler of claim 6, wherein a condensate emergency water inlet check valve is provided in a pipeline between the condensate emergency water inlet valve and the thermal oxygen remover.
8. The condensate water recovery and oxygen removal system for the low-pressure boiler according to any one of claims 1 to 7, wherein each thermal oxygen remover is provided with a water level metering device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220402118.7U CN217503630U (en) | 2022-02-28 | 2022-02-28 | Condensate water recovery and deoxidization system for low-pressure boiler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220402118.7U CN217503630U (en) | 2022-02-28 | 2022-02-28 | Condensate water recovery and deoxidization system for low-pressure boiler |
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| CN217503630U true CN217503630U (en) | 2022-09-27 |
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| CN202220402118.7U Active CN217503630U (en) | 2022-02-28 | 2022-02-28 | Condensate water recovery and deoxidization system for low-pressure boiler |
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| CN (1) | CN217503630U (en) |
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- 2022-02-28 CN CN202220402118.7U patent/CN217503630U/en active Active
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