A high-efficiency and energy-saving stratified boiler

Abstract

A high-efficiency and energy-saving stratified boiler comprises a boiler and a water tank, wherein the water tank is fixedly arranged above the boiler, the boiler comprises a fire chamber and a furnace door, a plurality of heat receiving pipes are arranged in the fire chamber, the water tank is connected to a first water supply pipe, the first water supply pipe is connected to a second water supply pipe, a float switch is arranged at the connection between the first water supply pipe and the second water supply pipe, the second water supply pipe is connected to a heat receiving reflux device, the heat receiving reflux device comprises a reflux pipe, the reflux pipe is located between the boiler and the water tank, the first steam pipe and the third steam pipe are connected to the second water supply pipe, the reflux pipe is also connected to the second steam pipe, and the second steam pipe is located above the reflux pipe. This high-efficiency and energy-saving stratified boiler heats water through the reflux pipe, has fast heating and high efficiency, can quickly generate steam, and hot water that does not generate steam can be reheated after passing through the reflux pipe to generate steam.

Description

Technical Field

[0001] The invention belongs to the technical field of boilers, and in particular relates to a high-efficiency and energy-saving stratified boiler. Background Art

[0002] A boiler is an energy conversion device. By heating the boiler, the water in the water tank located on the boiler is heated. When the water is heated to a certain degree, water vapor will be generated, and then the water vapor will be used to do work. In the prior art, when a boiler is used to heat a water tank, steam can only be generated after all the water in the water tank is heated. When there is a lot of water in the water tank, it takes a long time to heat, and the efficiency is relatively low. Summary of the invention

[0003] The purpose of the present invention is to provide a high-efficiency and energy-saving stratified boiler, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a high-efficiency and energy-saving stratified boiler, comprising a boiler and a water tank, the water tank is fixedly arranged above the boiler, the boiler comprises a fire chamber and a furnace door, a plurality of heat receiving pipes are arranged in the fire chamber, the water tank is connected with a first water adding pipe, the first water adding pipe is connected with a second water adding pipe, a float switch is arranged at the connection between the first water adding pipe and the second water adding pipe, the second water adding pipe is connected with a heated reflux device, the heated reflux device comprises a reflux pipe, the reflux pipe is located between the boiler and the water tank, the reflux pipe is divided into a plurality of flow channels by a partition bar, the head end of the reflux pipe is connected with the first steam pipe, the tail end of the reflux pipe is connected with the third steam pipe, the first steam pipe and the third steam pipe are connected with the second water adding pipe, the reflux pipe is also connected with the second steam pipe, and the second steam pipe is located above the reflux pipe.

[0005] On the basis of the above scheme and as a preferred scheme of the above scheme, a water tank interface is provided on the second steam pipe, and the water tank interface is connected to the water tank. The position of the water tank interface is higher than the position where the water tank is connected to the first water filling pipe.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme, a fan assembly is also provided at the connection between the return pipe and the second steam pipe, and the fan assembly includes an impeller and a fan. The impeller is arranged in the return pipe, and the impeller is connected to the fan through a rotating shaft. A sealing ring is provided at the connection between the rotating shaft and the boiler, and a bearing is provided at the connection between the rotating shaft and the fan.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme, a dirt discharge port is provided at the upper end of the water tank.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme, a drain valve is provided below the boiler, and the drain valve is connected to the return pipe and the second water supply pipe.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme, the boiler also includes a smoke window, which is arranged above the boiler and passes through the middle part of the water tank.

[0010] The beneficial effects of the present invention are as follows: this high-efficiency and energy-saving stratified boiler heats water through a return pipe, the heating is fast, the efficiency is high, and steam can be generated quickly, and hot water that does not generate steam can be reheated after passing through the return pipe to generate steam; the water tank injects water into the return pipe through a float switch to ensure the water supply in the return pipe; the water tank is connected to the second steam pipe, and the steam generated in the water tank can be fully utilized, thereby increasing the steam utilization rate of the entire boiler; by arranging a fan assembly at the connection between the return pipe and the second steam pipe, the water flow and steam are used to drive the impeller to rotate and do work, thereby further improving the energy utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0012] Figure 1 It is a structural schematic diagram of the present invention.

[0013] Figure 2 A schematic diagram of the structure of the fan assembly.

[0014] The reference numerals are as follows:

[0015] 1. Boiler; 101. Fire chamber; 102. Furnace door; 103. Heating tube; 104. Smoke window;

[0016] 2. Water tank; 201. Dirt discharge port; 202. Water tank interface;

[0017] 3. First water pipe; 4. Float switch; 5. Second water pipe; 6. First steam pipe; 7. Return pipe; 8. Spacer; 9. Second steam pipe; 10. Third steam pipe; 11. Drain valve;

[0018] 12. Fan assembly; 121. Impeller; 122. Rotating shaft; 123. Fan; 124. Sealing ring; 125. Bearing. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0021] As attached Figure 1 To Attachment Figure 2 As shown, a high-efficiency and energy-saving stratified boiler comprises a boiler 1 and a water tank 2, wherein the water tank 2 is fixedly arranged above the boiler 1, the boiler 1 comprises a fire chamber 101 and a furnace door 102, a plurality of heat receiving pipes 103 are arranged in the fire chamber 101, the water tank 2 is connected with a first water adding pipe 3, the first water adding pipe 3 is connected with a second water adding pipe 5, a float switch 4 is arranged at the connection between the first water adding pipe 3 and the second water adding pipe 5, the second water adding pipe 5 is connected with a heated reflux device, the heated reflux device comprises a reflux pipe 7, the reflux pipe 7 is located between the boiler 1 and the water tank 2, the reflux pipe 7 is divided into a plurality of flow channels by a partition bar 8, the head end of the reflux pipe 7 is connected with a first steam pipe 6, the tail end of the reflux pipe 7 is connected with a third steam pipe 10, the first steam pipe 6 and the third steam pipe 10 are connected with the second water adding pipe 5, the reflux pipe 7 is also connected with a second steam pipe 9, and the second steam pipe 9 is located above the reflux pipe 7.

[0022] Working principle: The water in the water tank enters the return pipe through the first water adding pipe and the second water adding pipe, first passes through the first steam pipe, and then passes through the return pipe, and then flows into the third steam pipe. It only needs to heat the water in the return pipe to generate steam, and the heating is fast and efficient. When the steam passes through the second steam pipe, it will come out of the second steam pipe, and the hot water that does not generate steam will be heated again after passing through the return pipe to achieve recycling. When the water flow in the return pipe is reduced due to the generation of steam, the water level drops, the float switch automatically opens, and water is automatically supplied to the return pipe through the water tank.

[0023] The second steam pipe 9 is provided with a water tank interface 202, and the water tank interface 202 is connected to the water tank 2. The position of the water tank interface 202 is higher than the position where the water tank 2 is connected to the first water supply pipe 3. When used for a long time, the water in the water tank will also be heated. At this time, the water vapor generated in the water tank can enter the second steam pipe through the water tank interface, thereby increasing the steam utilization rate of the entire boiler.

[0024] A fan assembly 12 is also provided at the connection between the return pipe 7 and the second steam pipe 9. The fan assembly 12 includes an impeller 121 and a fan 123. The impeller 121 is provided in the return pipe 7. The impeller 121 is connected to the fan 123 through a rotating shaft 122. A sealing ring 124 is provided at the connection between the rotating shaft 122 and the boiler 1. A bearing 125 is provided at the connection between the rotating shaft 122 and the fan 123. The impeller is driven to rotate and do work by water flow and steam, thereby further improving the energy utilization rate.

[0025] The upper end of the water tank 2 is provided with a dirt discharge port 201, which is conducive to cleaning out the scale and other debris in the water tank.

[0026] A drain valve 11 is provided below the boiler 1 , and the drain valve 11 is connected to the return pipe 7 and the second water supply pipe 5 . The drain valve is used to drain water in the return pipe.

[0027] The boiler 1 also includes a smoke window 104, which is arranged above the boiler 1 and passes through the middle part of the water tank 2. The smoke window carries a certain amount of heat when exhausting smoke, which is beneficial to heating the water in the water tank, making the water temperature entering the return pipe higher, and being able to generate steam faster, thereby improving resource utilization.

[0028] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-efficiency and energy-saving stratified boiler, characterized in that: The invention comprises a boiler (1) and a water tank (2), wherein the water tank (2) is fixedly arranged above the boiler (1), the boiler (1) comprises a fire chamber (101) and a furnace door (102), a plurality of heat receiving pipes (103) are arranged in the fire chamber (101), the water tank (2) is connected to a first water supply pipe (3), the first water supply pipe (3) is connected to a second water supply pipe (5), a float switch (4) is arranged at the connection between the first water supply pipe (3) and the second water supply pipe (5), the second water supply pipe (5) is connected to a heat receiving reflux device, and the heat receiving reflux device comprises a The invention comprises a return pipe (7), wherein the return pipe (7) is located between the boiler (1) and the water tank (2), and the return pipe (7) is divided into a plurality of flow channels by a spacer (8). The head end of the return pipe (7) is connected to the first steam pipe (6), and the tail end of the return pipe (7) is connected to the third steam pipe (10). The first steam pipe (6) and the third steam pipe (10) are connected to the second water supply pipe (5). The return pipe (7) is also connected to the second steam pipe (9), and the second steam pipe (9) is located above the return pipe (7); The second steam pipe (9) is provided with a water tank interface (202), the water tank interface (202) is connected to the water tank (2), and the position of the water tank interface (202) is higher than the position where the water tank (2) is connected to the first water supply pipe (3); A fan assembly (12) is also provided at the connection between the return pipe (7) and the second steam pipe (9), the fan assembly (12) comprising an impeller (121) and a fan (123), the impeller (121) being provided in the return pipe (7), the impeller (121) being connected to the fan (123) via a rotating shaft (122), a sealing ring (124) being provided at the connection between the rotating shaft (122) and the boiler (1), and a bearing (125) being provided at the connection between the rotating shaft (122) and the fan (123); The lower inlet of the first steam pipe (6) is higher than the lower outlet of the third steam pipe (10).

2. A high-efficiency and energy-saving stratified boiler as claimed in claim 1, characterized in that: The upper end of the water tank (2) is provided with a dirt discharge port (201).

3. The high-efficiency and energy-saving stratified boiler according to claim 1, characterized in that: A drainage valve (11) is provided below the boiler (1), and the drainage valve (11) is connected to the return pipe (7) and the second water supply pipe (5).

4. The high-efficiency and energy-saving stratified boiler according to claim 1, characterized in that: The boiler (1) further comprises a smoke window (104), wherein the smoke window (104) is arranged above the boiler (1), and the smoke window (104) passes through the middle part of the water tank (2).

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