Vacuum coal-fired boiler

Abstract

The utility model relates to the technical field of boilers, in particular to a vacuum coal-fired boiler which comprises a boiler body, an exchange chamber is formed in the upper end of the interior of the boiler body, and an isolation assembly is arranged in the exchange chamber and at the upper end of the boiler body and comprises a base fixedly installed on the bottom face of the interior of the exchange chamber. Four sliding grooves are formed in the upper end face of the base, sliding tables are installed in the sliding grooves in a sliding mode, under the action of the movable disc, the connecting rods can push the isolation plates to slide at the same time, the isolation plates can be gathered together in the sliding process, and therefore medium water in the exchange chamber can be segmented; and then an operator only needs to heat the medium water in the isolation plate, and the temperature of the water in the second water outlet pipe can be increased, so that the heating time can be shortened when a small amount of water sources are used, and waste of resources is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a vacuum coal-fired boiler. Background Art

[0002] A vacuum boiler forms a negative-pressure vacuum environment inside a closed furnace body. Heat medium water is filled in the machine body, and the heat medium water is heated by combustion or other means. The heated heat medium water generates steam, and the steam heats the water in the heat exchanger tubes through condensation heat exchange to achieve the supply of hot water.

[0003] For the current vacuum heating devices on the market, when heating through a medium water multi-exchanger inside, all the medium water inside the boiler needs to be heated synchronously to reach the designed temperature, which causes a large amount of time and energy consumption when heating a small amount of water source.

[0004] For example, in a Chinese patent (Publication No.: CN221444493U), a vacuum vertical coal-fired boiler includes a boiler body. A heat conduction plate and a sealing plate are arranged inside the boiler body. A heat exchange mechanism and a liquid homogenizing mechanism are arranged on the top of the heat conduction plate, and a uniform combustion mechanism is arranged below the sealing plate. The heat exchange mechanism is a heat exchange tube. During the heating process of this patent, the entire chamber inside the boiler needs to be heated, and then the second pipeline is heated during the heating process. Its overly large chamber causes waste of energy.

[0005] Therefore, we particularly propose a vacuum coal-fired boiler. Summary of the Invention

[0006] The purpose of the utility model is to provide a vacuum coal-fired boiler. Under the action of a moving disk, the same connecting rod can push a partition plate to slide. During the sliding process, the partition plates can gather together, so as to divide the medium water inside the exchange chamber. Then, the operator only needs to heat the medium water inside the partition plate to raise the temperature of the water in the second water outlet pipe, so as to reduce the heating time when facing a small amount of water consumption, thereby avoiding waste of resources, and solving the problems put forward in the above background art.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A vacuum coal-fired boiler, including a boiler main body, an exchange chamber is opened at the upper end inside the boiler main body, and an isolation component is jointly arranged inside the exchange chamber and at the upper end of the boiler main body;

[0008] The isolation component includes a base fixedly installed on the bottom surface inside the exchange chamber. A chute is opened on the upper end surface of the base, and the number of the chutes is four;

[0009] Sliding platforms are all slidably installed inside the sliding grooves, isolation plates are fixedly installed at the upper ends of the sliding platforms, and adjacent sides of the isolation plates can closely fit together;

[0010] Preferably, U-shaped grooves are fixedly installed on the upper end surface of the base inside the isolation plates. The number of U-shaped grooves is four. Slide bars are slidably installed inside the U-shaped grooves. Springs are fixedly installed between the lower ends of the slide bars and the upper end surface of the base. Connecting rods are rotatably installed at the upper and lower ends of the outer side surfaces of the slide bars, and the ends of the connecting rods far from the slide bars are rotatably installed on the inner side surfaces of the adjacent isolation plates.

[0011] Preferably, a servo motor is fixedly installed at the central position of the upper end surface of the boiler body. The output shaft of the servo motor is fixedly installed with a second screw rod. The lower end of the second screw rod extends into the inside of the exchange chamber. A moving disk is threadedly driven and installed on the circumferential surface of the second screw rod inside the exchange chamber.

[0012] Preferably, a through hole matching the U-shaped groove is opened from the upper end surface to the lower end surface of the moving disk. The upper end of the U-shaped groove is slidably installed inside the through hole, and the upper end of the slide bar is fixedly installed on the lower end surface of the moving disk.

[0013] Preferably, a second water inlet pipe and a second water outlet pipe are fixedly installed from the upper end surface of the boiler body to the inside of the exchange chamber. The lower ends of the second water inlet pipe and the second water outlet pipe are fixedly connected together and are located inside the isolation plates.

[0014] Preferably, a combustion chamber and a waste chamber are opened at the lower end inside the boiler body. The waste chamber is located below the combustion chamber. Coal chamber doors and waste doors are slidably installed at the positions corresponding to the combustion chamber and the waste chamber on the circumferential surface of the boiler body.

[0015] Preferably, an arc-shaped through hole is opened between the combustion chamber and the waste chamber. A protective shell is slidably installed inside the arc-shaped through hole. A first motor is fixedly installed at the lower end inside the boiler body. A first screw rod is fixedly installed on the output shaft of the first motor. The lower end of the protective shell is threadedly driven and installed on the circumferential surface of the first screw rod.

[0016] Preferably, an annular hole is opened between the exchange chamber and the combustion chamber. An isolation ring is fixedly installed on the inner wall of the annular hole. The lower end of the base is fixedly installed inside the upper end of the isolation ring. A blower is fixedly installed on the outer side surface of the boiler body. The upper end of the blower communicates with the combustion chamber. A flue is fixedly installed on the outer circumferential surface of the boiler body, and the flue communicates with the combustion chamber.

[0017] Preferably, a first water inlet and a first water outlet are fixedly installed on the outer upper circumferential surface of the boiler main body. A heat exchanger is fixedly installed between one adjacent ends of the first water inlet and the first water outlet and inside the exchange chamber.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. Compared with the traditional heating devices on the market, under the action of the moving disk, the connecting rod can push the isolation plate to slide. During the sliding process, the isolation plates can gather together, so as to divide the medium water inside the exchange chamber. Then, the operator only needs to heat the medium water inside the isolation plate, and the water in the second water outlet pipe can be heated. In this way, when facing a small amount of water consumption, the heating time can be reduced, thus avoiding waste of resources.

[0020] 2. Compared with the traditional vacuum boilers on the market, under the action of the first water inlet pipe and the second water inlet pipe, the water source can be heated according to actual needs, reducing the waiting time. Secondly, under the action of the isolation ring, the medium water outside the isolation plate can be prevented from heating up, thus avoiding damage to the exchanger. Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is the external view of the main body of the present utility model;

[0023] Figure 2 It is the internal structure diagram of the boiler main body of the present utility model;

[0024] Figure 3 It is the schematic diagram of the isolation component of the present utility model;

[0025] Figure 4 It is the schematic diagram of the U-shaped groove and the sliding rod of the present utility model;

[0026] Description of the reference numerals:

[0027] 1. Boiler main body; 101. Exchange chamber; 2. Blower; 3. Flue; 4. First water inlet; 41. Heat exchanger; 5. First water outlet; 6. Coal chamber door; 7. Waste door; 8. Second water inlet pipe; 9. Second water outlet pipe; 10. Combustion chamber; 11. Waste chamber; 12. Arc-shaped through hole; 13. Annular hole; 14. First motor; 15. First screw; 16. Protective shell; 17. Isolation ring;

[0028] 30. Isolation component; 18. Base; 19. Slide groove; 20. Isolation plate; 21. Slide table; 22. U-shaped groove; 23. Slide rod; 24. Connecting rod; 25. Spring; 26. Servo motor; 27. Second screw; 28. Moving plate; 29. Through hole. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1 to 4 , the present invention provides a technical solution:

[0031] A vacuum coal-fired boiler includes a boiler main body 1. An exchange chamber 101 is opened at the upper end inside the boiler main body 1. An isolation component 30 is provided inside the exchange chamber 101 and at the upper end of the boiler main body 1 together. The isolation component 30 includes a base 18 fixedly installed on the inner bottom surface of the exchange chamber 101. A slide groove 19 is opened on the upper end surface of the base 18. The number of the slide grooves 19 is four. Slide tables 21 are slidably installed inside the slide grooves 19. Isolation plates 20 are fixedly installed on the upper ends of the slide tables 21. The adjacent sides of the isolation plates 20 can be closely attached to each other.

[0032] On the upper end surface of the base 18, inside the isolation plate 20, a U-shaped groove 22 is fixedly installed. The number of the U-shaped grooves 22 is four. Inside each of the U-shaped grooves 22, a slide bar 23 is slidably installed. Between the lower end of the slide bar 23 and the upper end surface of the base 18, a spring 25 is fixedly installed. At the upper and lower ends of the outer side surface of the slide bar 23, connecting rods 24 are rotatably installed. The ends of the connecting rods 24 away from the slide bar 23 are rotatably installed on the inner side surface of the adjacent isolation plate 20. At the center position of the upper end surface of the boiler main body 1, a servo motor 26 is fixedly installed. The output shaft of the servo motor 26 is fixedly installed with a second screw rod 27. The lower end of the second screw rod 27 extends into the interior of the exchange chamber 101. On the circumferential surface of the second screw rod 27, inside the exchange chamber 101, a moving disk 28 is installed for screw drive. From the upper end surface to the lower end surface of the moving disk 28, a through opening 29 matching the U-shaped groove 22 is formed. The upper end of the U-shaped groove 22 is slidably installed inside the through opening 29. The upper end of the slide bar 23 is fixedly installed on the lower end surface of the moving disk 28. From the upper end surface of the boiler main body 1 to the interior of the exchange chamber 101, a second water inlet pipe 8 and a second water outlet pipe 9 are fixedly installed. The lower ends of the second water inlet pipe 8 and the second water outlet pipe 9 are fixedly connected together and are located inside the isolation plate 20.

[0033] By adopting the above technical solution, during use, an operator starts the servo motor 26 in the isolation assembly 30 at the upper end of the boiler main body 1. The output shaft of the servo motor 26 will drive the second screw rod 27 to rotate synchronously.

[0034] At this time, during the rotation of the second screw rod 27, the moving disk 28 on its circumferential surface will move upward under the action of the thread. Since the formed through opening 29 and the U-shaped groove 22 are slidably combined, the situation that the moving disk 28 rotates synchronously with the second screw rod 27 is avoided.

[0035] During the upward sliding of the moving disk 28, it will drive the slide bar 23, and the slide bar 23 will drive the connecting rod 24. At this time, the connecting rod 24 will rotate. And the spring 25 at the lower end of the slide bar 23 will also restore its length. During the rotation of the connecting rod 24, it will pull the isolation plate 20 to move synchronously. The lower end of the isolation plate 20 will drive the slide table 21 to slide inside the sliding groove 19, thereby avoiding the situation that the isolation plate 20 is separated from the base 18.

[0036] At this time, as the isolation plates 20 are fitted together, a sealed circular cavity structure is formed inside the isolation plates 20. Then, during the combustion process in the combustion chamber 10, the isolation ring 17 is fixedly installed inside the annular hole 13, so that the medium water outside the isolation plates 20 will not be heated up. Secondly, the first motor 14 is started, and the output shaft of the first motor 14 will drive the first screw rod 15 to rotate synchronously, so that the protective shell 16 can slide through the arc-shaped through hole 12 into the combustion chamber 10, and the heat generated by combustion can be concentrated inside the protective shell 16, further strengthening the concentration of heat.

[0037] The function of the protective shell 16 can concentrate the heat under the base 18, so that the medium water inside the isolation plates 20 can be quickly heated up to heat the water sources inside the second water inlet pipe 8 and the second water outlet pipe 9; under the action of the above-mentioned multiple structures, when the demand for hot water is small, the heating time of the medium water can be reduced and the waste of energy can be reduced.

[0038] Specifically, as Figure 4 shown, a combustion chamber 10 and a waste chamber 11 are provided at the lower end inside the boiler main body 1. The waste chamber 11 is located below the combustion chamber 10. Coal chamber doors 6 and waste doors 7 are slidably installed on the circumferential surface of the boiler main body 1 corresponding to the positions of the combustion chamber 10 and the waste chamber 11. An arc-shaped through hole 12 is provided between the combustion chamber 10 and the waste chamber 11. A protective shell 16 is slidably installed inside the arc-shaped through hole 12. A first motor 14 is fixedly installed inside the lower end of the boiler main body 1. A first screw rod 15 is fixedly installed on the output shaft of the first motor 14. The lower end of the protective shell 16 is threadedly installed on the circumferential surface of the first screw rod 15.

[0039] An annular hole 13 is provided between the exchange chamber 101 and the combustion chamber 10. An isolation ring 17 is fixedly installed on the inner wall of the annular hole 13. The lower end of the base 18 is fixedly installed at the upper end inside the isolation ring 17. A blower 2 is fixedly installed on the outer side surface of the boiler main body 1. The upper end of the blower 2 communicates with the combustion chamber 10. A flue 3 is fixedly installed on the outer circumferential surface of the boiler main body 1. The flue 3 communicates with the combustion chamber 10. A first water inlet 4 and a first water outlet 5 are fixedly installed on the outer upper circumferential surface of the boiler main body 1. A heat exchanger 41 is fixedly installed between the adjacent ends of the first water inlet 4 and the first water outlet 5 and inside the exchange chamber 101.

[0040] By adopting the above technical solution, during the use process, the blower 2 is used to deliver oxygen and air into the interior of the combustion chamber 10 to accelerate the combustion of coal. After combustion, the coal will fall into the interior of the waste chamber 11. At this time, the coal chamber door 6 is opened for feeding, and the waste door 7 is opened for cleaning the waste. Moreover, the waste gas inside the combustion chamber 10 will enter the interior of the flue 3 and be discharged. It should be noted that a filtering device is installed inside the flue 3 to filter the waste gas and prevent harmful substances from being discharged.

[0041] Then, during the use process, when dealing with a large demand for hot water, the first water inlet 4 is connected to an external water pipe to allow the external water source to pass through the first water inlet 4 and enter the interior of the heat exchanger 41. After the heating of the medium water in the exchange chamber 101, it flows out from the first water outlet 5. It should be noted that when using the heat exchanger 41, the isolation plate 20 needs to be in an open state so that the medium water inside the exchange chamber 101 can be heated as a whole.

[0042] Working principle: First, when heating a small amount of hot water, the output shaft of the servo motor 26 will drive the second screw rod 27 to rotate synchronously, and then the moving plate 28 will drive the sliding rod 23 to move synchronously.

[0043] In this way, the sliding rod 23 drives the connecting rod 24 to rotate, and then under the action of the connecting rod 24, the isolation plate 20 can gradually approach and finally be tightly combined together.

[0044] Then, when facing a large demand for hot water, operate in the reverse order of the above steps to allow the medium water inside the isolation plate 20 to merge with the medium water outside.

[0045] Then, under the action of the combustion chamber 10, the medium water inside the exchange chamber 101 is heated, so as to achieve the situation of heating the water source inside the heat exchanger 41 in large quantities.

[0046] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vacuum coal-fired boiler, comprising a boiler main body (1), wherein an exchange chamber (101) is opened at the upper end inside the boiler main body (1), and is characterized in that: An isolation component (30) is jointly provided inside the switching chamber (101) and at the upper end of the boiler body (1); The isolation component (30) includes a base (18) fixedly installed on the inner bottom surface of the switching chamber (101). A chute (19) is provided on the upper end surface of the base (18), and the number of the chutes (19) is four; Sliding platforms (21) are slidably installed inside the chutes (19). Isolation plates (20) are fixedly installed on the upper ends of the sliding platforms (21), and adjacent sides of the isolation plates (20) can closely fit together.

2. A vacuum coal-fired boiler according to claim 1, characterized in that: On the upper end surface of the base (18) and inside the isolation plates (20), U-shaped grooves (22) are fixedly installed. The number of the U-shaped grooves (22) is four. Slide rods (23) are slidably installed inside the U-shaped grooves (22). Springs (25) are fixedly installed between the lower ends of the slide rods (23) and the upper end surface of the base (18). Connecting rods (24) are rotatably installed at the upper and lower ends of the outer side surfaces of the slide rods (23), and the ends of the connecting rods (24) far from the slide rods (23) are rotatably installed on the inner side surfaces of the adjacent isolation plates (20).

3. A vacuum coal-fired boiler according to claim 2, characterized in that: A servo motor (26) is fixedly installed at the center position of the upper end surface of the boiler body (1). A second screw rod (27) is fixedly installed on the output shaft of the servo motor (26). The lower end of the second screw rod (27) extends into the switching chamber (101), and a moving disk (28) is threadedly driven and installed on the circumferential surface of the second screw rod (27) inside the switching chamber (101).

4. A vacuum coal-fired boiler according to claim 3, characterized in that: A through hole (29) matching the U-shaped groove (22) is provided from the upper end surface to the lower end surface of the moving disk (28). The upper end of the U-shaped groove (22) is slidably installed inside the through hole (29), and the upper end of the slide rod (23) is fixedly installed on the lower end surface of the moving disk (28).

5. A vacuum coal-fired boiler according to claim 4, characterized in that: A second water inlet pipe (8) and a second water outlet pipe (9) are fixedly installed from the upper end surface of the boiler body (1) to the inside of the switching chamber (101). The lower ends of the second water inlet pipe (8) and the second water outlet pipe (9) are fixedly connected together and are located inside the isolation plates (20).

6. The vacuum coal-fired boiler according to claim 5, characterized in that: A combustion chamber (10) and a waste chamber (11) are provided at the lower end inside the boiler body (1). The waste chamber (11) is located below the combustion chamber (10). A coal chamber door (6) and a waste door (7) are slidably installed at the corresponding positions of the combustion chamber (10) and the waste chamber (11) on the circumferential surface of the boiler body (1).

7. A vacuum coal-fired boiler according to claim 6, characterized in that: An arc through hole (12) is provided between the combustion chamber (10) and the waste chamber (11). A protective shell (16) is slidably installed inside the arc through hole (12). A first motor (14) is fixedly installed at the lower end inside the boiler body (1). A first screw rod (15) is fixedly installed on the output shaft of the first motor (14). The lower end of the protective shell (16) is threadedly driven and installed on the circumferential surface of the first screw rod (15).

8. A vacuum coal-fired boiler according to claim 1, characterized in that: An annular hole (13) is formed between the switching chamber (101) and the combustion chamber (10). An insulating ring (17) is fixedly installed on the inner wall of the annular hole (13). The lower end of the base (18) is fixedly installed at the upper end inside the insulating ring (17). A blower (2) is fixedly installed on the outer side surface of the boiler main body (1). The upper end of the blower (2) communicates with the combustion chamber (10). A flue (3) is fixedly installed on the outer circumferential surface of the boiler main body (1). The flue (3) communicates with the combustion chamber (10).

9. A vacuum coal-fired boiler according to claim 1, characterized in that: A first water inlet (4) and a first water outlet (5) are fixedly installed on the upper outer circumferential surface of the boiler main body (1). A heat exchanger (41) is fixedly installed between one adjacent ends of the first water inlet (4) and the first water outlet (5) and inside the switching chamber (101).

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