Double circulation waste heat recovery condensing boiler

Abstract

The utility model discloses a double -cycle waste heat recovery condensing boiler, including boiler body and condenser, the top of boiler body is installed with condenser, and the lateral shell surface intercommunication fixed of condenser has liquid pipe, still includes liquid detection mechanism, the liquid detection mechanism includes U -shaped clamping plate, double bolt, holds the support board, U -shaped and meets the box, the edge containing cylinder, the float switch and alarm, through setting liquid detection mechanism at the condenser of boiler body, the U -shaped clamping plate of liquid detection mechanism can be clamped in the liquid pipe outside installation of condenser, so that the flange plate below of liquid pipe exists the U -shaped box of collecting liquid, after the leakage of the flange plate of liquid pipe, the liquid in U -shaped box and the edge containing cylinder can cooperate float switch box alarm to carry out the liquid leakage alarm of alarm, guarantee the condenser liquid pipe of double -cycle waste heat recovery condensing boiler can be found after leaking.

Description

Technical Field

[0001] This utility model relates to the field of condensing boiler technology, and in particular to a dual-cycle waste heat recovery condensing boiler. Background Technology

[0002] A condensing boiler utilizes a highly efficient condensing waste heat recovery device to absorb the sensible heat from the high-temperature flue gas discharged from the boiler and the latent heat released by the condensation of water vapor, thereby improving the boiler's thermal efficiency. The core of a condensing boiler lies in a two-stage heat exchange system, which achieves efficient dual-cycle recovery of preheating of the condensing boiler through a dual-cycle waste heat recovery structure.

[0003] In existing condensing boilers equipped with a dual-cycle waste heat recovery system, the condenser above the boiler is connected to an external liquid circulation pipeline via a flanged pipe. This type of flange is prone to leakage during long-term use. However, because this pipe flange is located high outside the condenser shell, leakage problems that affect the dual-cycle waste heat recovery are often difficult to detect. Therefore, we propose a dual-cycle waste heat recovery condensing boiler. Utility Model Content

[0004] The main purpose of this utility model is to provide a dual-cycle waste heat recovery condensing boiler. By setting a liquid detection mechanism at the condenser of the boiler body, the U-shaped clamp of the liquid detection mechanism can be installed on the outside of the liquid pipe of the condenser, so that there is a U-shaped junction box for collecting liquid below the flange of the liquid pipe. After the flange of the liquid pipe leaks, the liquid in the U-shaped junction box and the side container increases, which can be used in conjunction with the float switch and alarm to detect the leakage. This ensures that the leakage of the liquid pipe of the condenser of the dual-cycle waste heat recovery condensing boiler can be detected, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A dual-cycle waste heat recovery condensing boiler includes a boiler body and a condenser. The condenser is installed at the top of the boiler body, and liquid pipes are fixedly connected to each other on the side shells of the condenser. The boiler also includes a liquid detection mechanism, which includes a U-shaped clamp, double pins, a support plate, a U-shaped junction box, a side container, a float switch, and an alarm. The U-shaped clamp is fitted around the liquid pipe near its flange, and the surfaces of the U-shaped clamps on both sides of the liquid pipe have symmetrical through holes for inserting the double pins. A support plate is welded below the U-shaped clamp between the liquid pipes, and a U-shaped junction box is bolted to the vertical plate of the support plate away from the U-shaped clamp. A side container is welded to the outside of one side of the U-shaped junction box, and a leak is provided at the U-shaped junction box inside the side container. A float switch is placed inside the side container, and an alarm for liquid level alarm in conjunction with the float switch is installed at the bottom of the side container.

[0007] Furthermore, the pins of the double pins are inserted into the double sets of holes in the through holes, and the top of the double sets of pins of the double pins are fixed with pin plates.

[0008] By adopting the above technical solution, the double pins are inserted into the through holes with two sets of pins, thereby symmetrically clamping the outside of the liquid tube and ensuring that the U-shaped clamp can be installed outside the liquid tube.

[0009] Furthermore, the double set of vertical plates of the support plate are welded to the lower plate of the U-shaped clamp, and an installation hole for screw bolts is provided between the vertical plate of the support plate away from the double set of vertical plates and the U-shaped junction box.

[0010] By adopting the above technical solution, after the support plate is welded to the U-shaped clamp with a vertical plate body, the vertical plate body of the support plate and the U-shaped junction box can be locked by screwing bolts.

[0011] Furthermore, a vertical support plate is welded to one side of the bottom of the side container, and an alarm is bolted to the surface of the vertical support plate;

[0012] By adopting the above technical solution, the side container can be used with the vertical support plate to lock the alarm with bolts.

[0013] Furthermore, the side notch of the side container is provided on the side of the cylinder body, and the side notch of the side container is welded to the box body of the U-shaped junction box;

[0014] By adopting the above technical solution, the side-filled cylinder is fixed to the outside of the U-shaped junction box by welding the cylinder body with a side notch.

[0015] Furthermore, the cavity size of the side container is larger than the housing size of the float switch;

[0016] By adopting the above technical solution, the float switch can be placed inside the side container to float or descend.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model provides a liquid detection mechanism at the condenser of the boiler body. The U-shaped clamp of the liquid detection mechanism can be installed on the outside of the liquid pipe of the condenser, so that there is a U-shaped junction box for collecting liquid below the flange of the liquid pipe. After the flange of the liquid pipe leaks, the liquid in the U-shaped junction box and the side container increases, which can be used in conjunction with the float switch box alarm to detect the leakage. This ensures that the leakage of liquid pipe in the condenser of the dual-cycle waste heat recovery condensing boiler can be detected.

[0019] Furthermore, the liquid detection mechanism adopts an assembly design of U-shaped clamps and double pins, which can be firmly clamped on the outside of the condenser liquid pipe, ensuring that the U-shaped junction box is accurately positioned below the flange mating surface, and can efficiently collect the dripping liquid at the flange. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the dual-cycle waste heat recovery condensing boiler of this utility model.

[0021] Figure 2 This is a schematic diagram showing the liquid inspection mechanism and liquid pipe disassembly of the dual-cycle waste heat recovery condensing boiler of this utility model.

[0022] Figure 3 This is an exploded view of the liquid inspection mechanism of the dual-cycle waste heat recovery condensing boiler of this utility model.

[0023] Figure 4 This is a schematic diagram showing the disassembled U-shaped clamp and support plate of the dual-cycle waste heat recovery condensing boiler of this utility model.

[0024] In the diagram: 1. Boiler body; 2. Condenser; 3. Liquid pipe; 4. Liquid detection mechanism; 5. U-shaped clamp; 6. Through hole; 7. Double pin; 8. Support plate; 9. U-shaped junction box; 10. Leakage outlet; 11. Side container; 12. Float switch; 13. Vertical support plate; 14. Alarm. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1-4 As shown, the dual-cycle waste heat recovery condensing boiler includes a boiler body 1 and a condenser 2. The condenser 2 is installed at the top of the boiler body 1, and liquid pipes 3 are fixedly connected to each other on the side shell of the condenser 2. The boiler also includes a liquid detection mechanism 4, which includes a U-shaped clamp 5, double pins 7, a support plate 8, a U-shaped junction box 9, a side container 11, a float switch 12, and an alarm 14. The liquid pipe 3 is fitted with a U-shaped clamp 5 near its flange, and the U-shaped clamp 5 is symmetrically opened on both sides of the liquid pipe 3. There is a through hole 6 for inserting double pins 7. A support plate 8 is welded below the U-shaped clamp 5 between the liquid pipes 3. A U-shaped junction box 9 is bolted to the vertical plate of the support plate 8 away from the U-shaped clamp 5. A side container 11 is welded to the outside of one side of the U-shaped junction box 9. A leak 10 is opened at the U-shaped junction box 9 inside the side container 11. A float switch 12 is placed inside the side container 11. An alarm 14 for liquid level alarm is installed at the bottom of the side container 11 in conjunction with the float switch 12.

[0027] The pins of the double pins 7 are inserted into the double sets of holes in the through holes 6, and the top of the double sets of pins of the double pins 7 is fixed with pin plates.

[0028] By adopting the above technical solution, the double pins 7 are inserted into the through holes 6 with double sets of insert rods, thereby symmetrically clamping the outside of the liquid pipe 3, ensuring that the U-shaped clamp 5 can be installed outside the liquid pipe 3.

[0029] The double vertical plates of the support plate 8 are welded to the lower plate of the U-shaped clamp 5, and the vertical plate of the support plate 8 away from the double vertical plates and the U-shaped junction box 9 are provided with mounting holes for screw bolts.

[0030] By adopting the above technical solution, after the support plate 8 is welded to the U-shaped clamp 5 with a vertical plate body, the vertical plate body of the support plate 8 and the U-shaped junction box 9 can be locked by screwing bolts.

[0031] Among them, a vertical support plate 13 is welded to one side of the bottom of the side container 11, and an alarm 14 is locked to the surface of the vertical support plate 13 by bolts.

[0032] By adopting the above technical solution, the side container 11 can be used with the vertical support plate 13 to lock the alarm 14 with bolts.

[0033] The side notch of the side container 11 is provided on the side of the cylinder body and is welded to the box body of the U-shaped junction box 9.

[0034] By adopting the above technical solution, the side container 11 is fixed to the outside of the U-shaped junction box 9 by welding the side notch of the cylinder body.

[0035] The cavity size of the side container 11 is larger than the housing size of the float switch 12;

[0036] By adopting the above technical solution, the float switch 12 can be placed inside the side container 11 to float or descend.

[0037] It should be noted that this utility model is a dual-cycle waste heat recovery condensing boiler. A liquid detection mechanism 4 is installed at the condenser 2 of the boiler body 1. The U-shaped clamp 5 of the liquid detection mechanism 4 can be clamped onto the outside of the liquid pipe 3 of the condenser 2. Then, double pins 7 can be inserted into the through holes 6 of the U-shaped clamp 5. The support plate 8 below the U-shaped clamp 5 is then bolted to the outside of the U-shaped junction box 9, so that the U-shaped junction box 9 is located below the flange of the liquid pipe 3. When the flange of the liquid pipe 3 is connected to the flange of the external waste heat recovery pipe, the U-shaped junction box 9 can be located below the mating surface of the flange of the liquid pipe 3 and the flange of the external pipe. Then, the alarm 14 can be bolted to the vertical side of the side container 11. At support plate 13, alarm 14, in conjunction with float switch 12, can be electrically connected to external relay and external power supply. Under the guidance of professional electrical technicians, it can be used for power connection. When liquid drips from the flange of liquid pipe 3, the liquid can collect in U-shaped junction box 9. The liquid in U-shaped junction box 9 can enter side container 11 through leak 10. When the liquid in side container 11 increases, float switch 12 can float, thereby connecting alarm 14 to external power supply. At this time, alarm 14 will sound an alarm to alert boiler technicians. After the technicians find that there is a leak at liquid pipe 3, they can replace and maintain the sealing ring to avoid the leak at liquid pipe 3 affecting the normal use of the dual-cycle waste heat recovery condensing boiler.

[0038] It should be noted that this utility model is a dual-cycle waste heat recovery condensing boiler. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dual-cycle waste heat recovery condensing boiler, comprising a boiler body (1) and a condenser (2), wherein the condenser (2) is installed at the top of the boiler body (1), and liquid pipes (3) are fixedly connected to each other on the side shell surface of the condenser (2), characterized in that: It also includes a liquid detection mechanism (4), which includes a U-shaped clamp (5), double pins (7), a support plate (8), a U-shaped junction box (9), a side container (11), a float switch (12), and an alarm (14). The liquid pipe (3) is fitted with a U-shaped clamp (5) near its own flange. The U-shaped clamps (5) on both sides of the liquid pipe (3) are symmetrically provided with through holes (6) for inserting the double pins (7). The U-shaped clamps (5) between the liquid pipes (3) are located below... A support plate (8) is welded to the square, and a U-shaped junction box (9) is bolted to the vertical plate of the support plate (8) away from the U-shaped clamp (5). A side container (11) is welded to the outside of one side of the U-shaped junction box (9), and a leak (10) is opened at the U-shaped junction box (9) inside the side container (11). A float switch (12) is placed inside the side container (11), and an alarm (14) for liquid level alarm is installed at the bottom of the side container (11) in conjunction with the float switch (12).

2. The dual-cycle waste heat recovery condensing boiler according to claim 1, characterized in that: The pins of the double pins (7) are inserted into the double sets of holes in the through holes (6), and the top of the double sets of pins of the double pins (7) are fixed with pin plates.

3. The dual-cycle waste heat recovery condensing boiler according to claim 1, characterized in that: The double vertical plates of the support plate (8) are welded to the lower plate of the U-shaped clamp (5), and the vertical plate of the support plate (8) away from the double vertical plates and the U-shaped junction box (9) are provided with mounting holes for screw bolts.

4. The dual-cycle waste heat recovery condensing boiler according to claim 1, characterized in that: A vertical support plate (13) is welded to one side of the bottom of the side container (11), and an alarm (14) is bolted to the surface of the vertical support plate (13).

5. The dual-cycle waste heat recovery condensing boiler according to claim 1, characterized in that: The side notch of the side container (11) is provided on the side of the cylinder body, and the side notch of the side container (11) is welded to the box body of the U-shaped junction box (9).

6. The dual-cycle waste heat recovery condensing boiler according to claim 1, characterized in that: The cavity size of the side container (11) is larger than the housing size of the float switch (12).

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