Condensing gas steam boiler water supply system

By introducing a dual filtration design of magnetic filter screen and filter cartridge into the water supply system of condensing gas-fired steam boiler, the problem of impurities entering the boiler is solved, achieving efficient water purification and ensuring normal boiler operation.

CN224479623UActive Publication Date: 2026-07-10HENAN TAIGUO BOILER MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN TAIGUO BOILER MFG CO LTD
Filing Date
2025-07-04
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing condensing gas-fired steam boiler water supply systems cannot filter the water entering the boiler, causing impurities such as suspended solids, silt, and rust to enter the boiler, affecting thermal efficiency and potentially clogging pipes or damaging water pumps.

Method used

The water supply system, consisting of a filter box and a connecting box, uses a magnetic filter screen and a filter cylinder to perform dual filtration of the water, including centrifugal filtration and secondary filtration, to prevent impurities from entering the boiler.

Benefits of technology

It effectively filters out suspended solids, silt, rust and other impurities from the water, maintains boiler thermal efficiency, avoids clogging and water pump damage, and improves the system's practicality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224479623U_ABST
    Figure CN224479623U_ABST
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Abstract

The utility model discloses condensing type gas steam boiler water supply system, including filter box, the upper portion of filter box is equipped with the connecting box, and is equipped with the support block between connecting box and filter box. The utility model discloses, through the use of the magnetic filter screen in the filter frame in the connecting box, the iron filings impurity in water can be adsorbed and filtered, wherein by opening the motor on the top surface of connecting box, the motor drives the horizontal plate to rotate, and the horizontal plate drives the filter frame to rotate at the same time, so that the magnetic filter screen in the filter frame rotates, the water in the connecting box can be centrifugal filtered, the filtering effect can be improved, the filtered water enters the filter box through the connecting pipe, and then the filtering effect of the external water can be improved by using the filter cartridge in the filter box, the suspended solids, silt, rust and other impurities in the water can not enter the boiler together, and the normal thermal efficiency of the boiler can be maintained.
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Description

Technical Field

[0001] This utility model relates to the field of boiler technology, and in particular to a water supply system for a condensing gas-fired steam boiler. Background Technology

[0002] The water supply system of a condensing gas-fired steam boiler is a key component for its efficient and safe operation, and its main function is to provide treated water to the boiler.

[0003] The existing Chinese patent with publication number CN213983499U discloses a water supply system for a gas-fired steam boiler. The existing technical solution described above has the following defects: Although the above technical solution can avoid direct contact between cold water and the corrugated pipe and the flue by adding a water box, allowing the cold water added to the boiler to be mixed and heated first, reducing the temperature difference and thus reducing the thermal stress generated by the corrugated pipe and the flue itself, the above technical solution cannot filter the water entering the boiler. Suspended solids, silt, rust and other impurities in the water supply will enter the boiler together, which will be deposited in the boiler, affecting the thermal efficiency, and even clogging the pipes or damaging the water pump. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a condensing gas-fired steam boiler water supply system that can filter the water entering the boiler, preventing suspended solids, silt, rust, and other impurities from entering the boiler and causing blockages, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a condensing gas-fired steam boiler water supply system, including a filter box, a connecting box above the filter box, and a support block between the connecting box and the filter box. A filter frame is provided in the connecting box, and a magnetic filter screen is fixedly installed in the filter frame. A horizontal plate is provided at the middle of the top surface of the filter frame. A motor is fixedly installed at the middle of the top surface of the connecting box, and the output end of the motor passes through the top surface of the connecting box and is fixedly connected to the horizontal plate. A connecting pipe is provided at the middle of the bottom surface of the connecting box, and one end of the connecting pipe extends through the top surface of the filter box into the interior of the filter box. A filter cylinder is provided inside the filter box, and inserts are provided on both sides of the top surface of the filter cylinder. One end of each insert extends into a slot opened on both sides of the top surface of the filter box. Support legs are provided on both sides of the bottom surface of the filter box, and a mounting plate is provided on one side of each support leg. A pump body is fixedly installed on the top surface of the mounting plate, and the pump body is connected to the filter box via a water pumping pipe.

[0008] Preferably, the front surface of the filter box is provided with a movable plate, and the movable plate is fixedly connected to the filter box by screws.

[0009] Preferably, the top surface of the filter box has screws through slots on both sides, and one end of the screws extends into the interior of a positioning hole opened on the top surface of the insert block. The screws are threadedly connected to the positioning hole, and the insert block is inserted into the slot.

[0010] Preferably, the top surface of the connecting box is provided with a water inlet pipe on the side of the motor.

[0011] Preferably, there are two magnetic filters, and the two magnetic filters are evenly distributed on both sides of the inside of the filter frame.

[0012] Preferably, the bottom upper surface of the connecting box is provided with guide plates on both sides, and the guide plates are matched with the connecting box.

[0013] Preferably, the filter cartridge is matched with the filter box.

[0014] Preferably, there are multiple support legs, and the multiple support legs are evenly distributed in pairs on both sides of the bottom surface of the filter box, and the support legs are fixedly welded to the filter box.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a condensing gas-fired steam boiler water supply system, which has the following beneficial effects:

[0017] (1) In this utility model, external water is added into the connecting box through the water inlet pipe. By using the magnetic filter screen in the filter frame of the connecting box, iron filings and other impurities in the water can be adsorbed and filtered. By turning on the motor on the top surface of the connecting box, the motor drives the horizontal plate to rotate. The horizontal plate rotates and drives the filter frame to rotate, causing the magnetic filter screen in the filter frame to rotate. This centrifugal filtration of the water entering the connecting box can improve its filtration effect. The filtered water enters the filter box through the connecting pipe, and is then filtered again by the filter cylinder in the filter box. This can improve the filtration effect of external water, prevent suspended solids, mud, rust and other impurities in the water from entering the boiler together, maintain the normal thermal efficiency of the boiler, avoid blockage or damage to the water pump, and improve its practicality.

[0018] (2) In this utility model, the pump body on the top surface of the mounting plate can be opened to transport the filtered water to the boiler. When it is necessary to clean the inside of the filter box, the movable plate can be removed by loosening the screws on the front surface of the movable plate, and then the screws on both sides of the top surface of the filter box can be rotated so that one end of the screw is away from the positioning hole on the top surface of the insert block, so that the insert block is away from the slot, thereby allowing the filter cylinder to be disassembled from the filter box, making it convenient to clean the impurities on the filter cylinder and maintain its normal use in the future. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the condensing gas-fired steam boiler water supply system proposed in this utility model;

[0021] Figure 2 This is an enlarged view (A) of the condensing gas-fired steam boiler water supply system proposed in this utility model;

[0022] Figure 3 This is a front view of the condensing gas-fired steam boiler water supply system proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the filter frame structure of the condensing gas-fired steam boiler water supply system proposed in this utility model.

[0024] Legend:

[0025] 1. Filter box; 2. Connecting box; 3. Inlet pipe; 4. Motor; 5. Horizontal plate; 6. Filter frame; 7. Magnetic filter screen; 8. Connecting pipe; 9. Support block; 10. Pump body; 11. Mounting plate; 12. Guide plate; 13. Support leg; 14. Screw; 15. Slot; 16. Positioning hole; 17. Insert block; 18. Filter cylinder; 19. Movable plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] Please refer to Figure 1-4A condensing gas-fired steam boiler water supply system includes a filter box 1, a connecting box 2 above the filter box 1, and a support block 9 between the connecting box 2 and the filter box 1. A filter frame 6 is installed in the connecting box 2, and a magnetic filter screen 7 is fixedly installed in the filter frame 6. A horizontal plate 5 is located at the middle of the top surface of the filter frame 6. A motor 4 is fixedly installed at the middle of the top surface of the connecting box 2, and the output end of the motor 4 passes through the top surface of the connecting box 2 and is fixedly connected to the horizontal plate 5. A connecting pipe 8 is located at the middle of the bottom surface of the connecting box 2, and one end of the connecting pipe 8 extends through the top surface of the filter box 1 into the interior of the filter box 1. A filter cylinder 18 is installed inside the filter box 1, and insert blocks 17 are located on both sides of the top surface of the filter cylinder 18. One end of the insert block 17 extends into the slots 15 opened on both sides of the top surface of the filter box 1. Support legs 13 are located on both sides of the bottom surface of the filter box 1, and a mounting plate 11 is located on one side of the support leg 13. The top surface of the mounting plate 11 is fixed. A pump body 10 is installed and connected to the filter box 1 via a water inlet pipe. External water is introduced into the connecting box 2 through the water inlet pipe 3. The magnetic filter screen 7 in the filter frame 6 of the connecting box 2 can adsorb and filter iron filings and impurities in the water. By turning on the motor 4 on the top surface of the connecting box 2, the motor 4 drives the horizontal plate 5 to rotate. The horizontal plate 5 rotates and drives the filter frame 6 to rotate, causing the magnetic filter screen 7 in the filter frame 6 to rotate. This centrifugal filtration of the water entering the connecting box 2 can improve its filtration effect. The filtered water enters the filter box 1 through the connecting pipe 8 and is filtered again through the filter cylinder 18 in the filter box 1. This can improve the filtration effect of external water, prevent suspended solids, silt, rust and other impurities in the water from entering the boiler, maintain the normal thermal efficiency of the boiler, avoid clogging or damage to the water pump, and improve its practicality.

[0029] In one embodiment, a movable plate 19 is provided on the front surface of the filter box 1, and the movable plate 19 is fixedly connected to the filter box 1 by screws. The movable plate 19 can be removed by loosening the screws, so that the inside of the filter box 1 can be cleaned.

[0030] In one embodiment, screws 14 are provided on both sides of the top surface of the filter box 1 through the slot 15, and one end of the screws 14 extends into the interior of the positioning hole 16 opened on the top surface of the insert 17. The screws 14 are threadedly connected to the positioning hole 16, and the insert 17 is inserted into the slot 15. By rotating the screws 14 on both sides of the top surface of the filter box 1, one end of the screws 14 is moved away from the positioning hole 16 on the top surface of the insert 17, and the insert 17 is moved away from the slot 15. This allows the filter cartridge 18 to be disassembled from the filter box 1, making it convenient to clean the impurities on the filter cartridge 18 and maintain its normal use.

[0031] In one embodiment, a water inlet pipe 3 is provided on the top surface of the connecting box 2 on one side of the motor 4, through which water can be added to the connecting box 2.

[0032] In one embodiment, there are two magnetic filter screens 7, which are evenly distributed on both sides of the inside of the filter frame 6. The use of the magnetic filter screens 7 can adsorb and filter iron impurities in the water.

[0033] In one embodiment, guide plates 12 are provided on both sides of the bottom upper surface of the connecting box 2, and the guide plates 12 are matched with the connecting box 2. The use of the guide plates 12 can guide the filtered water in the connecting box 2 to prevent it from remaining at the bottom of the connecting box 2.

[0034] In one embodiment, the filter cartridge 18 is matched with the filter box 1.

[0035] In one embodiment, a plurality of support legs 13 are provided, and the plurality of support legs 13 are evenly distributed in pairs on both sides of the bottom surface of the filter box 1. The support legs 13 are fixedly welded to the filter box 1. The support legs 13 support the filter box 1, which helps to improve the stability of the filter box 1.

[0036] In one embodiment, the control switch control circuit can be implemented by simple programming by those skilled in the art, and is common knowledge in the field. It is only used and not modified, so the control method and circuit connection will not be described in detail.

[0037] Working principle:

[0038] In use, external water is added to the connecting box 2 through the inlet pipe 3. The magnetic filter screen 7 in the filter frame 6 of the connecting box 2 adsorbs and filters iron filings and impurities in the water. By turning on the motor 4 on the top surface of the connecting box 2, the motor 4 drives the horizontal plate 5 to rotate. Simultaneously, the horizontal plate 5 rotates the filter frame 6, causing the magnetic filter screen 7 in the filter frame 6 to rotate, thus centrifugally filtering the water entering the connecting box 2, improving its filtration effect. The filtered water then enters the filter box 1 through the connecting pipe 8, and is further filtered through the filter cylinder 18 in the filter box 1. This improves the filtration effect on external water and prevents suspended solids, sediment, and rust from entering the water. Impurities will enter the boiler together, which can maintain the normal thermal efficiency of the boiler and avoid problems such as blockage or damage to the water pump, which is conducive to improving its practicality. The pump body 10 on the top surface of the mounting plate 11 can be opened to deliver the filtered water to the boiler. When it is necessary to clean the inside of the filter box 1, the movable plate 19 can be removed by loosening the screws on the front surface of the movable plate 19. Then, by rotating the screws 14 on both sides of the top surface of the filter box 1, one end of the screw 14 is moved away from the positioning hole 16 on the top surface of the insert 17, so that the insert 17 is moved away from the slot 15. Thus, the filter cylinder 18 can be disassembled from the filter box 1, which is convenient for cleaning the impurities on the filter cylinder 18 and can maintain its normal use in the future.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A condensing gas-fired steam boiler water supply system, including a filter box (1), characterized in that, A connecting box (2) is provided above the filter box (1), and a support block (9) is provided between the connecting box (2) and the filter box (1). A filter frame (6) is provided in the connecting box (2), and a magnetic filter screen (7) is fixedly installed in the filter frame (6). A horizontal plate (5) is provided at the middle position of the top surface of the filter frame (6). A motor (4) is fixedly installed at the middle position of the top surface of the connecting box (2), and the output end of the motor (4) passes through the top surface of the connecting box (2) and is fixedly connected to the horizontal plate (5). A connecting pipe (8) is provided at the middle position of the bottom surface of the connecting box (2), and the connecting pipe (8) One end of the filter box (1) extends through the top surface of the filter box (1) into the interior of the filter box (1). The filter box (1) is provided with a filter cylinder (18) inside. The top surface of the filter cylinder (18) is provided with inserts (17) on both sides. One end of the inserts (17) extends into the slots (15) opened on both sides of the top surface of the filter box (1). The bottom surface of the filter box (1) is provided with legs (13) on both sides. One side surface of the legs (13) is provided with a mounting plate (11). The top surface of the mounting plate (11) is fixedly mounted with a pump body (10). The pump body (10) is connected to the filter box (1) through a water pumping pipe.

2. The condensing gas-fired steam boiler water supply system according to claim 1, characterized in that, The front surface of the filter box (1) is provided with a movable plate (19), and the movable plate (19) is fixedly connected to the filter box (1) by screws.

3. The condensing gas-fired steam boiler water supply system according to claim 1, characterized in that, The top surface of the filter box (1) has screws (14) through slots (15) on both sides, and one end of the screws (14) extends into the interior of the positioning hole (16) on the top surface of the insert (17). The screws (14) are threadedly connected to the positioning hole (16), and the insert (17) is inserted into the slot (15).

4. The condensing gas-fired steam boiler water supply system according to claim 1, characterized in that, The top surface of the connecting box (2) is provided with a water inlet pipe (3) on one side of the motor (4).

5. The condensing gas-fired steam boiler water supply system according to claim 1, characterized in that, There are two magnetic filters (7), and the two magnetic filters (7) are evenly distributed on both sides of the inside of the filter frame (6).

6. The condensing gas-fired steam boiler water supply system according to claim 1, characterized in that, The bottom upper surface of the connecting box (2) is provided with guide plates (12) on both sides, and the guide plates (12) are matched with the connecting box (2).

7. The condensing gas-fired steam boiler water supply system according to claim 1, characterized in that, The filter cartridge (18) is matched with the filter box (1).

8. The condensing gas-fired steam boiler water supply system according to claim 1, characterized in that, The support legs (13) are provided in multiple pairs, and the multiple support legs (13) are evenly distributed on both sides of the bottom surface of the filter box (1). The support legs (13) are fixedly welded to the filter box (1).