Manganese sand filter and system for reducing iron ions in water production of thermal generator set

Abstract

The utility model discloses a manganese sand filter and a system for reducing iron ions in water production of a thermal generator set, and relates to the technical field of boiler make-up water of a thermal power plant. The manganese sand filter comprises an outer shell; the filter element is arranged in the outer shell, a liquid inlet channel is formed in the filter element and communicated with the liquid inlet end of the manganese sand filter, and the filter element comprises a manganese sand filter layer, an activated carbon filler layer and a resin filter layer; the manganese sand filter layer, the activated carbon filler layer and the resin filter layer can be used for sequentially performing graded filtration on iron and other impurities in water, so that the filtration effect on the iron and other impurities in the water can be effectively improved; meanwhile, the system for reducing the iron ions in water production of the thermal generator set can treat water in the early stage of a boiler water supply system, the water quality is effectively improved, and the iron ion content is effectively reduced. The problems that in the initial stage of a boiler make-up water treatment system of a traditional boiler make-up water system, the water quality of a water source is unqualified, the iron ion content is high, and initial water production cannot be met are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler feed water in thermal power plants, in particular to a manganese sand filter and a system for reducing iron ions in water production of thermal power generating units. Background Art

[0002] The boiler feedwater control system's mission is to control the boiler's feedwater flow during startup, shutdown, and normal operation, ensuring it meets the boiler's evaporation rate and maintaining the drum water level within the permitted range. It also protects the boiler's water circulation and economizer. Currently, thermal power plant boiler feedwater systems primarily utilize ultrafiltration and reverse osmosis systems, coupled with ion exchange systems, to produce water that meets power industry boiler feedwater standards.

[0003] However, during the initial commissioning of the conventional boiler feed water system, the temporary water quality is poor and the temporary water source water quality cannot meet the normal water production requirements. Based on this situation, it is necessary to add temporary treatment equipment to improve the water quality problem to meet the initial water production needs.

[0004] Based on this, the present invention proposes a manganese sand filter and a system for reducing iron ions in water production of thermal power generating units to solve the problems existing in the above-mentioned prior art. Utility Model Content

[0005] In view of this, the main purpose of the present invention is to provide a manganese sand filter and a system for reducing iron ions in water production for thermal power generating units, so as to solve the problem that in the early stage of the boiler feed water treatment system, the water source quality is unqualified, the iron ion content is high, and it cannot meet the initial water production needs.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0007] This new technology provides the first technical solution: manganese sand filter, including:

[0008] outer shell;

[0009] The filter element is arranged in the outer shell and has a conical structure. A liquid inlet channel is opened on the filter element and is connected to the liquid inlet end of the manganese sand filter;

[0010] The filter element comprises a manganese sand filter layer and an activated carbon filler layer arranged outside the manganese sand filter layer.

[0011] In a preferred embodiment, the filter element further comprises a resin filter layer, and the resin filter layer is arranged outside the activated carbon filler layer.

[0012] In a preferred embodiment, the resin filter layer, the activated carbon filler layer and the manganese sand filter layer all include copper wire mesh and filter material, and the copper wire mesh is arranged on the outside of the filter material to form a filter material skeleton.

[0013] In a preferred embodiment, the filter element further comprises a resin filter layer, and the resin filter layer is arranged outside the activated carbon filler layer.

[0014] The present invention provides a second technical solution: a system for reducing iron ions in water production for thermal power generating units, including a manganese sand filter.

[0015] In a preferred embodiment, it also includes:

[0016] A raw water pump is connected to the liquid inlet end of the manganese sand filter;

[0017] A raw water tank is connected to the liquid outlet of the manganese sand filter, and an ultrafiltration water pump is provided on the connecting pipeline between the raw water tank and the manganese sand filter;

[0018] A dual-media filter is connected to the liquid outlet of the raw water tank;

[0019] The ultrafiltration system is connected to the liquid outlet of the dual-media filter.

[0020] In a preferred embodiment, a manual manganese sand filter inlet door is provided on the liquid inlet pipe of the manganese sand filter; a manganese sand filter water inlet discharge and sampling manual door is also provided on a branch pipe of the sand filter liquid inlet pipe.

[0021] In a preferred embodiment, a bypass branch is provided on the main pipeline of the liquid inlet pipe of the manganese sand filter and is connected to the liquid outlet pipe of the manganese sand filter, and a manganese sand filter bypass manual door is also provided on the bypass.

[0022] In a preferred embodiment, a manual manganese sand filter outlet door is provided on the liquid outlet pipe of the manganese sand filter, and a bypass is provided on the liquid outlet pipe of the manganese sand filter, and a manual manganese sand filter outlet discharge and sampling door is provided on the bypass.

[0023] In a preferred embodiment, a manual water inlet door for the raw water tank is provided on the liquid inlet pipe of the raw water tank.

[0024] Compared with the prior art, the present invention provides a manganese sand filter and a system for reducing iron ions in water production of thermal power generating units, which has the following beneficial effects:

[0025] 1. Through the structural setting of the manganese sand filter, the manganese sand filter layer, activated carbon filler layer and resin filter layer can be used to perform graded filtration on iron impurities and other impurities in the water in turn, which can effectively improve the filtration effect of iron impurities and other impurities in the water and improve the water quality.

[0026] 2. By setting up a system for reducing iron ions in water production for thermal power generators, a device has been established to filter iron and other impurities from water. This device treats water in the early stages of the boiler feed water system, effectively improving water quality and reducing iron ion content. This solves the problem of traditional boiler feed water systems, where the initial water quality of the boiler feed water treatment system is substandard and the iron ion content is high, making it unable to meet the initial water production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained from these drawings without paying any creative work.

[0028] Figure 1 This is a schematic diagram of the structure of the manganese sand filter of the utility model;

[0029] Figure 2 This is a cross-sectional view of the manganese sand filter of the present utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the filter element bracket of the utility model;

[0031] Figure 4 This is a top view of the filter element of the utility model;

[0032] Figure 5 This is a system structure diagram for reducing iron ions in water production for a thermal power generator set of the present invention.

[0033]

Main component symbol description

[0034] 1. Raw water pump; 2. Manganese sand filter; 3. Raw water tank; 4. Ultrafiltration water pump; 5. Dual-media filter; 6. Ultrafiltration system; 7. Manual door for water inlet, discharge and sampling of manganese sand filter; 8. Manual door for inlet of manganese sand filter; 9. Manual door for outlet of manganese sand filter; 10. Manual door for bypass of manganese sand filter; 11. Manual door for water outlet, discharge and sampling of manganese sand filter; 12. Manual door for water inlet of raw water tank; 13. Resin filter layer; 14. Activated carbon filler layer; 15. Manganese sand filter layer; 16. Copper wire mesh; 17. Filter element fixing bracket. DETAILED DESCRIPTION

[0035] The structure of the manganese sand filter and the system for reducing iron ions in water production of thermal power generating units will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present utility model.

[0036] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application 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.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0040] Example 1:

[0041] As the instruction manual Figure 1-Figure 4As shown, this embodiment provides a first technical solution:

[0042] A manganese sand filter 2 includes an outer shell and a conical filter element arranged in the outer shell 1. A liquid inlet channel is opened on the filter element, which is connected to the liquid inlet end of the manganese sand filter 2 and is used for layered filtration of iron ions and other impurities of different sizes. A filter element fixing frame 17 is also provided in the manganese sand filter 2 for fixing the filter element.

[0043] In a preferred embodiment, Figure 2 、 Figure 3 and Figure 4 As shown, the filter element includes a manganese sand filter layer 15, an activated carbon filler layer 14 and a resin filter layer 13 from the inside out, which are used to perform sealing filtration on iron ions to improve water quality.

[0044] The manganese sand filter layer 15 includes natural manganese sand filter material and copper wire mesh 16. By arranging the copper wire mesh 16 on the inner and outer sides of the natural manganese sand filter material, a protective net structure of the natural manganese sand filter material is formed, which can enhance the overall strength of the manganese sand filter layer 15. When in use, the natural manganese sand filter material is used to purify water quality to remove iron, manganese and its impurities.

[0045] The activated carbon filler layer 14 is arranged on the outside of the manganese sand filter layer 15, and includes activated carbon particles and a copper wire mesh 16. By arranging the copper wire mesh 16 on the inner and outer sides of the activated carbon particles, a protective mesh structure of the activated carbon particles is formed, which can enhance the overall strength of the activated carbon filler layer 14. When in use, the adsorption effect of the activated carbon is utilized to purify water to remove iron, manganese and their impurities.

[0046] The resin filter layer 13 is arranged on the outside of the activated carbon filler layer 14, and includes a plurality of resin particles and a copper wire mesh 16. By arranging the copper wire mesh 16 on the inner and outer sides of the resin particles, a protective mesh structure of the resin particles is formed, which can enhance the overall strength of the resin filter layer 13. When in use, the adsorption effect of the resin particles is utilized to purify water to remove iron, manganese and their impurities.

[0047] When the manganese sand filter 2 described in this embodiment is used:

[0048] First, large particles of iron impurities in the water are removed through the manganese sand filter layer 15; through the adsorption effect of the activated carbon filler layer 14, the iron and other impurities are further filtered through secondary filtration; after being treated by the activated carbon filler layer 14, the affinity of the resin particles in the resin filter layer 13 is utilized to adsorb impurities in the water, and the harmful substances are combined with the resin through ion exchange to remove suspended matter, color, odor, heavy metals and other harmful substances in the water, so as to achieve the purpose of stratification of the filter layer and step-by-step filtration by type.

[0049] Example 2:

[0050] As the instruction manual Figure 1 and Figure 5 As shown, this embodiment provides a second technical solution:

[0051] A system for reducing iron ions in water production for thermal power generation units comprises the manganese sand filter 2 as described in Example 1 above, and also comprises a raw water pump 1, a raw water tank 3, a dual-media filter 5 and an ultrafiltration system 6; the raw water pump 1 is arranged at the liquid inlet end of the manganese sand filter 2 and is connected to the liquid inlet end of the manganese sand filter 2 through a pipeline; the raw water tank 3 is arranged at the liquid outlet end of the manganese sand filter 2 and is connected to the liquid outlet end of the manganese sand filter 2 through a pipeline; the dual-media filter 5 is arranged at the liquid outlet end of the raw water tank 3 and is connected to the liquid inlet end of the ultrafiltration system 6. In the initial stage of water production, the raw water pump 1 pumps water supplied to the system, passes through the manganese sand filter 2, removes iron ions in the water, enters the raw water tank 3, is output by the ultrafiltration water pump 4, passes through the dual-media filter 5 and enters the ultrafiltration system 6, and finally enters the boiler feed water system after being filtered by the ultrafiltration system 6.

[0052] In a preferred embodiment, Figure 1 and Figure 5 As shown, the main pipeline of the manganese sand filter 2's liquid inlet is also equipped with a manual manganese sand filter inlet gate 8, which controls the flow rate and opening and closing of the pipeline. A branch pipeline of the sand filter 2's liquid inlet is also equipped with a manual manganese sand filter water discharge and sampling gate 7, which is used to discharge water from the manganese sand filter 2 and sample the water during use. A bypass branch is also provided on the main pipeline of the manganese sand filter 2's liquid inlet, connecting to the manganese sand filter 2's liquid outlet. If a problem occurs with the manganese sand filter 1, the bypass can be switched to maintain system water supply. A manual manganese sand filter bypass gate 10 is also provided on the bypass for controlling the bypass opening and closing and flow rate. A manual manganese sand filter outlet gate 9 is provided on the manganese sand filter 2's liquid outlet, which is used to control the flow rate and opening and closing of the manganese sand filter 2's liquid outlet. A bypass is provided on the liquid outlet pipe of the manganese sand filter 2, and a manual door 11 for water discharge and sampling of the manganese sand filter is provided on the bypass, which is used for sampling after filtration through the manual door 11 for water discharge and sampling of the manganese sand filter during use.

[0053] In a preferred embodiment, Figure 5 As shown, a manual raw water tank inlet gate 12 is provided on the liquid inlet pipe of the raw water tank 3, which is used to control the liquid inlet of the raw water tank 3 through the manual raw water tank inlet gate 12. An ultrafiltration water feed pump 4 is also provided between the raw water tank 3 and the dual-media filter 5 to increase the flow rate and ensure the flow rate.

[0054] The operating principles of the system for reducing iron ions in water production for thermal power generators described in this embodiment include:

[0055] At the initial stage of water production, the raw water pump 1 pumps water into the system, passes through the manganese sand filter 2 to remove iron ions in the water, and then enters the raw water tank 3. It is output by the ultrafiltration water pump 4, passes through the dual-media filter 5 and enters the ultrafiltration system 6. Finally, it is filtered by the ultrafiltration system 6 and enters the boiler feed water system.

[0056] At the same time, during actual operation, samples can be taken through the manual discharge door 11 to test the water quality of the system's inlet water. If the manganese sand filter has problems, it can be switched to bypass to maintain the system's water supply. Through the configuration of this system, it is possible to filter and treat the temporary inlet water of the boiler feed water system, solving the problem of substandard water quality and high iron ion content in the early stage of the boiler feed water treatment system in traditional boiler feed water systems, which cannot meet the initial water production requirements.

[0057] It should be noted that, in the above description, the raw water pump 1, raw water tank 3, ultrafiltration water pump 4, dual-media filter 5, ultrafiltration system 6, manganese sand filter water inlet discharge and sampling manual door 7, manganese sand filter inlet manual door 8, manganese sand filter outlet manual door 9, manganese sand filter bypass manual door 10, manganese sand filter water outlet discharge and sampling manual door 11 and raw water tank water inlet manual door are all devices with relatively mature application of existing technology. The specific models can be selected according to actual needs and will not be elaborated here.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. Manganese sand filter, characterized by: include: outer shell; The filter element is arranged in the outer shell and has a conical structure. A liquid inlet channel is provided on the filter element and is connected to the liquid inlet end of the manganese sand filter (2); The filter element comprises a manganese sand filter layer (15) and an activated carbon filler layer (14) arranged outside the manganese sand filter layer (15).

2. The manganese sand filter according to claim 1, wherein: The filter element further comprises a resin filter layer (13), and the resin filter layer (13) is arranged outside the activated carbon filler layer (14).

3. The manganese sand filter according to claim 2, wherein: The resin filter layer (13) is arranged in the outer shell via a filter element fixing frame (17).

4. The manganese sand filter according to claim 2, wherein: Therefore, the resin filter layer (13), the activated carbon filler layer (14) and the manganese sand filter layer (15) all include a copper wire mesh (16) and filter material, and the copper wire mesh (16) is arranged outside the filter material to form a filter material skeleton.

5. A system for reducing iron ions in water production for thermal power generating units, characterized by: It comprises the manganese sand filter (2) as described in any one of claims 1 to 4.

6. The system for reducing iron ions in water production of thermal power generating units according to claim 5, characterized in that: Also includes: A raw water pump (1) is connected to the liquid inlet end of the manganese sand filter (2); A raw water tank (3) is connected to the liquid outlet of the manganese sand filter (2), and an ultrafiltration water pump (4) is provided between the raw water tank (3) and the manganese sand filter (2); A dual-media filter (5) is connected to the liquid outlet of the raw water tank (3); The ultrafiltration system (6) is communicated with the liquid outlet end of the dual-media filter (5).

7. The system for reducing iron ions in water production of thermal power generating units according to claim 6, characterized in that: A manganese sand filter inlet manual door (8) is provided on the liquid inlet pipe of the manganese sand filter (2); a branch is provided on the liquid inlet pipe of the sand filter (2), and a manganese sand filter water inlet discharge and sampling manual door (7) is also provided on the branch.

8. The system for reducing iron ions in water production of a thermal power generating unit according to claim 6, characterized in that: A bypass branch is provided on the liquid inlet pipe of the manganese sand filter (2) and is connected to the liquid outlet pipe of the manganese sand filter (2), and a manganese sand filter bypass manual door (10) is also provided on the bypass.

9. The system for reducing iron ions in water production of a thermal power generating unit according to claim 6, characterized in that: A manganese sand filter outlet manual door (9) is provided on the liquid outlet pipe of the manganese sand filter (2), and a bypass is provided on the liquid outlet pipe of the manganese sand filter (2), and a manganese sand filter outlet water discharge and sampling manual door (11) is provided on the bypass.

10. The system for reducing iron ions in water production of thermal power generating units according to claim 6, characterized in that: A raw water tank water inlet manual door (12) is provided on the liquid inlet pipe of the raw water tank (3).

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