Precise temperature allocation system for tail end of boiler heat supply pipeline

Abstract

The utility model belongs to the technical field of boiler devices, and particularly relates to a boiler heat supply pipeline tail end temperature accurate allocation system which comprises a boiler body and a boiler burner arranged at one end of the boiler body. A first boiler fire tube and a second boiler fire tube which extend to the inner side and the outer side of the inner container respectively are arranged on the front tube plate; the inner container and the boiler body communicate with a first water outlet pipe and a second water outlet pipe correspondingly, the tail ends of the first water outlet pipe and the second water outlet pipe communicate with a mixing box, and a third water outlet pipe is arranged at the bottom of the mixing box. The boiler body is divided into two subareas with different temperatures through the inner container, two different water temperatures can be accurately input into the mixing box at the tail end of the water outlet pipe through the battery valve to be mixed in actual use, and the water is discharged through the mixing box after reaching specified stability, so that the temperature of the tail end of the water outlet pipe is accurately adjusted, and the service life of the boiler is prolonged. The device is simple in structure, convenient to operate, low in input cost and easy to be put into the market on a large scale for use.

Description

Technical Field

[0001] The utility model belongs to the technical field of boiler devices, and in particular relates to a precise temperature adjustment system for the tail end of a boiler heating pipeline. Background Art

[0002] Existing boilers use a variety of fuels, most of which have the disadvantages of high cost and low thermal efficiency. In addition, some hot water boilers usually have only one hot water chamber and can only output hot water of one temperature. At the same time, when the heating pipe of an existing hot water boiler is long, the temperature at the tail end will lose a lot of heat, which not only makes it difficult to guarantee the output temperature at the tail end, but also makes it impossible to accurately adjust the tail end temperature.

[0003] In order to solve the above problems, this application proposes a precise temperature adjustment system for the tail end of the boiler heating pipe. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a system for accurately adjusting the temperature of the tail end of a boiler heating pipe, which has the characteristic of being able to accurately adjust the temperature of the tail end of the heating pipe.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a precise temperature adjustment system for the tail end of a boiler heating pipe, comprising a furnace body and a boiler burner arranged at one end of the furnace body, a front tube plate being provided inside the furnace body, an inner liner being provided on the front tube plate, and a first boiler fire tube and a second boiler fire tube being provided on the front tube plate, respectively extending to the inner side and the outer side of the inner liner; the inner liner and the furnace body are respectively connected to a first water outlet pipe and a second water outlet pipe, the tail ends of the first water outlet pipe and the second water outlet pipe are both connected to a mixing box, and a third water outlet pipe is provided at the bottom of the mixing box.

[0006] As a preferred embodiment of the precise temperature adjustment system for the tail end of the boiler heating pipe of the present invention, a second temperature zone is formed between the furnace body, the front tube plate and the inner tank, and the second boiler fire tube extends into the interior of the second temperature zone.

[0007] As a preferred embodiment of the precise temperature adjustment system for the tail end of the boiler heating pipe of the present invention, a first water inlet pipe and a second water inlet pipe are provided above the furnace body, respectively communicating with the inner tank and the furnace body.

[0008] As a preferred embodiment of the precise temperature adjustment system for the tail end of the boiler heating pipe of the present invention, a first sewage pipe and a second sewage pipe are provided below the furnace body, respectively communicating with the inner tank and the furnace body.

[0009] As a preferred embodiment of the precise temperature adjustment system for the tail end of the boiler heating pipe of the present invention, the front ends of the first water outlet pipe and the second water outlet pipe are respectively provided with a first solenoid valve and a second solenoid valve.

[0010] As a preferred embodiment of the precise temperature adjustment system for the tail end of the boiler heating pipe of the present invention, the tail ends of the first water outlet pipe and the second water outlet pipe are respectively provided with a first branch pipe and a second branch pipe connected to the mixing box, and a third solenoid valve and a fourth solenoid valve are respectively provided in the middle of the first branch pipe and the second branch pipe.

[0011] As a preferred embodiment of the precise temperature adjustment system for the tail end of the boiler heating pipe of the present invention, a pressure relief valve and a temperature sensor are respectively provided at the top and bottom of the mixing box.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the furnace body is divided into two zones with different temperatures through the inner tank. In actual use, two different water temperatures can be accurately input into the mixing box at the tail end of the outlet pipe through the battery valve for mixing. When the specified stability is reached, the water is discharged through the mixing box, thereby realizing the precise adjustment of the temperature at the tail end of the outlet pipe. The present invention has a simple structure, is easy to operate and has a low investment cost, and is easy to be put into the market for large-scale use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic structural diagram of the mixing box in the present invention;

[0016] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0017] Figure 4 This is a circuit diagram of the utility model.

[0018] In the figure: 1. furnace body; 2. boiler burner; 3. front tube plate; 4. inner tank; 5. first boiler fire tube; 6. second boiler fire tube; 7. first water outlet pipe; 8. second water outlet pipe; 9. mixing box; 10. third water outlet pipe; 11. first water inlet pipe; 12. second water inlet pipe; 13. first sewage pipe; 14. second sewage pipe; 15. first solenoid valve; 16. second solenoid valve; 17. first branch pipe; 18. second branch pipe; 19. third solenoid valve; 20. fourth solenoid valve; 21. pressure relief valve; 22. temperature sensor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0020] Example 1

[0021] like Figure 1 and Figure 2 As shown;

[0022] The precise temperature adjustment system for the tail end of the boiler heating pipe includes a furnace body 1 and a boiler burner 2 provided at one end of the furnace body 1. A front tube plate 3 is provided inside the furnace body 1, and an inner liner 4 is provided on the front tube plate 3. The front tube plate 3 is provided with a first boiler fire tube 5 and a second boiler fire tube 6 extending to the inner side and the outer side of the inner liner 4 respectively; the inner liner 4 and the furnace body 1 are respectively connected to a first water outlet pipe 7 and a second water outlet pipe 8, and the tail ends of the first water outlet pipe 7 and the second water outlet pipe 8 are both connected to a mixing box 9, and a third water outlet pipe 10 is provided at the bottom of the mixing box 9. A second temperature zone is formed between the furnace body 1, the front tube plate 3 and the inner liner 4, and the second boiler fire tube 6 extends to the inside of the second temperature zone.

[0023] It should be noted that the furnace body 1 is provided with a water level gauge extending into the furnace body 1 and the inner tank 4 to ensure the stability of the water level in the second temperature zone and the inner tank 4. An insulation layer is provided outside the mixing box 9 to prevent heat loss.

[0024] In this embodiment, the furnace body 1 is divided into two zones with different temperatures by the inner tank 4. In actual use, two different water temperatures can be accurately input into the mixing box 9 at the tail end of the water outlet pipe through the battery valve for mixing. When the water reaches the specified stability, it is discharged through the mixing box 9, thereby realizing the precise adjustment of the temperature at the tail end of the water outlet pipe. This embodiment has a simple structure, is easy to operate, and has a low investment cost, and is easy to be put into the market for large-scale use.

[0025] In an optional embodiment, a first water inlet pipe 11 and a second water inlet pipe 12 are provided above the furnace body 1, which are connected to the inner tank 4 and the furnace body 1 respectively. A first sewage pipe 13 and a second sewage pipe 14 are provided below the furnace body 1, which are connected to the inner tank 4 and the furnace body 1 respectively. A first solenoid valve 15 and a second solenoid valve 16 are provided at the front ends of the first water outlet pipe 7 and the second water outlet pipe 8 respectively.

[0026] like Figure 3 As shown;

[0027] In an optional embodiment, the tail ends of the first water outlet pipe 7 and the second water outlet pipe 8 are respectively provided with a first branch pipe 17 and a second branch pipe 18 connected to the mixing box 9, and the middle of the first branch pipe 17 and the second branch pipe 18 are respectively provided with a third solenoid valve 19 and a fourth solenoid valve 20.

[0028] In this embodiment: when the water temperature of the mixing box 9 is greater than the specified value, the fourth solenoid valve 20 is opened to allow water from the second temperature zone to enter, and the water is discharged through the third water outlet pipe 10 until the temperature drops to the specified temperature. Similarly, when the water temperature of the mixing box 9 is less than the specified value, the third solenoid valve 19 is opened to allow water from the inner tank 4 to enter, and the water is discharged through the third water outlet pipe 10 until the temperature rises to the specified temperature.

[0029] In an optional embodiment, a pressure relief valve 21 and a temperature sensor 22 are respectively provided at the top and bottom of the mixing box 9 .

[0030] In this embodiment: Figure 4 As shown, the temperature sensor 22 , the first solenoid valve 15 , the second solenoid valve 16 , the third solenoid valve 19 and the fourth solenoid valve 20 are all electrically connected to the control main board, and the temperature sensor 22 detects the temperature of the mixing box 9 in real time.

[0031] The working principle and usage process of the present invention are as follows: water is injected into the inner tank 4 and the second temperature zone through the first water inlet pipe 11 and the second water inlet pipe 12 respectively, and the inner tank 4 and the second temperature zone are heated respectively by the boiler burner 2, the first boiler fire tube 5 and the second boiler fire tube 6. The internal temperature of the inner tank 4 is 5 to 10 degrees higher than the specified temperature, and the internal temperature of the second temperature zone is 25 to 30 degrees higher than the specified temperature. The temperature range can actually be adaptively adjusted according to the length of the heating pipe. The first solenoid valve 15 and the second solenoid valve 16 are opened, and the temperature of the mixing box 9 is detected in real time according to the temperature sensor 22. When the water temperature of the mixing box 9 is greater than the specified value, the fourth solenoid valve 20 is opened to allow water from the second temperature zone to enter, and the water is discharged through the third water outlet pipe 10 until the temperature drops to the specified temperature. Similarly, when the water temperature of the mixing box 9 is less than the specified value, the third solenoid valve 19 is opened to allow water from the inner tank 4 to enter, and the water is discharged through the third water outlet pipe 10 until the temperature rises to the specified temperature.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A system for accurately adjusting the temperature of the tail end of a boiler heating pipe, comprising a furnace body (1) and a boiler burner (2) arranged at one end of the furnace body (1), characterized in that: A front tube plate (3) is provided inside the furnace body (1), an inner liner (4) is provided on the front tube plate (3), and a first boiler fire tube (5) and a second boiler fire tube (6) are provided on the front tube plate (3) and extend to the inner side and the outer side of the inner liner (4) respectively; The inner container (4) and the furnace body (1) are respectively connected to a first water outlet pipe (7) and a second water outlet pipe (8); the tail ends of the first water outlet pipe (7) and the second water outlet pipe (8) are both connected to a mixing box (9), and a third water outlet pipe (10) is provided at the bottom of the mixing box (9).

2. The precise temperature adjustment system for the tail end of a boiler heating pipe according to claim 1 is characterized in that: A second temperature zone is formed between the furnace body (1), the front tube plate (3) and the inner tank (4), and the second boiler fire tube (6) extends into the interior of the second temperature zone.

3. The precise temperature adjustment system for the tail end of a boiler heating pipe according to claim 2 is characterized in that: A first water inlet pipe (11) and a second water inlet pipe (12) are provided above the furnace body (1) and are connected to the inner container (4) and the furnace body (1) respectively.

4. The precise temperature adjustment system for the tail end of a boiler heating pipe according to claim 3 is characterized by: A first sewage pipe (13) and a second sewage pipe (14) are provided below the furnace body (1) and are connected to the inner container (4) and the furnace body (1) respectively.

5. The precise temperature adjustment system for the tail end of a boiler heating pipe according to claim 4 is characterized in that: A first solenoid valve (15) and a second solenoid valve (16) are respectively provided at the front ends of the first water outlet pipe (7) and the second water outlet pipe (8).

6. The system for accurately adjusting the temperature of the tail end of a boiler heating pipe according to claim 5 is characterized in that: A first branch pipe (17) and a second branch pipe (18) connected to the mixing box (9) are respectively provided at the tail ends of the first water outlet pipe (7) and the second water outlet pipe (8), and a third solenoid valve (19) and a fourth solenoid valve (20) are respectively provided in the middle of the first branch pipe (17) and the second branch pipe (18).

7. The system for accurately adjusting the temperature of the tail end of a boiler heating pipe according to claim 6 is characterized in that: The top and bottom of the mixing box (9) are respectively provided with a pressure relief valve (21) and a temperature sensor (22).

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