Horizontal coil pipe steam boiler

Abstract

The utility model provides a horizontal coil steam boiler which comprises a body, a furnace door mechanism is arranged at the top of the body, a burner is further arranged at the upper end of the furnace door mechanism, a gas valve set is further arranged on the side edge of the burner, and the gas valve set is communicated with the burner. A group plug pump is further arranged at the upper end of the channel steel base, an energy-saving condensation all-in-one machine is arranged on the side edge of the body, a steam dehumidification collecting box is further arranged between the body and the energy-saving condensation all-in-one machine, a distribution collecting box is arranged on the side wall of the steam dehumidification collecting box, and the body and the steam dehumidification collecting box are communicated through the distribution collecting box. By arranging the energy-saving condensation all-in-one machine, sensible heat in flue gas and latent heat of vaporization after water vapor condensation are recycled in an ultimate mode, the feed water temperature is increased, the exhaust gas temperature is reduced, the fuel gas cost is saved, and the heat efficiency of the boiler is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a horizontal coil steam boiler. Background Art

[0002] A fuel oil steam boiler is a steam boiler that uses fuel oil (such as diesel) as fuel. It is divided into a vertical fuel oil steam boiler and a horizontal fuel oil steam boiler. The horizontal fuel oil steam boiler has a shell-type fully wet-back and parallel-flow three-pass smoke tube structure. The flame burns under slightly positive pressure in the large combustion chamber, fully extends, has a low combustion heat load, a high combustion thermal efficiency, effectively reduces the exhaust gas temperature, saves energy and reduces consumption, and is more economical to use. It adopts a corrugated furnace lining and threaded smoke tube structure, which not only improves the heat absorption intensity of the boiler but also meets the need for the heat exchange surface to expand due to heat, is scientific and reasonable, and is durable.

[0003] The existing Chinese patent document CN201920118776.1 discloses a horizontal fuel oil steam boiler, which includes a main body and a furnace lining. The main body completely wraps the furnace lining. The bottom end of the furnace lining is movably connected to the top end of a first rotating rod through a sealed bearing. A sleeve is sleeved on the outer surface of the first rotating rod. The sliding rod is fixedly connected to the sewage discharge pipe. The left end of the second baffle is threadedly connected to the right end of a turntable. The turntable is movably connected to the sewage discharge pipe through a sealed bearing. In this horizontal fuel oil steam boiler, through the cooperation of the sleeve, the first short rod and the long rod, when the sleeve rotates, it can drive the first short rod and the long rod to rotate, playing a stirring role, so that the sediment at the bottom of the main body floats up, and then it is convenient to discharge the sediment. Through the cooperation of the gear, the first rotating block and the first rotating rod, when the gear rotates, it can drive the first rotating block to rotate, thereby driving the first rotating rod to rotate, and then driving the sleeve to rotate to achieve the purpose of stirring, thereby increasing the sewage discharge efficiency and shortening the sewage discharge cycle.

[0004] However, the above patent has certain defects in use. The flue gas of this device is directly discharged to the outside, which is likely to cause the ambient temperature to rise, and the heat contained in the flue gas is wasted and cannot be utilized.

[0005] Therefore, a horizontal coil steam boiler is proposed here to solve the above problems. Content of the Utility Model

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a horizontal coil steam boiler.

[0007] The utility model is realized by adopting the following technical solutions:

[0008] A horizontal coil steam boiler includes a main body. A furnace door mechanism is arranged at the top of the main body. A burner is further arranged at the upper end of the furnace door mechanism. A gas valve group is further arranged at the side of the burner. The gas valve group is communicated with the burner.

[0009] There is also a plunger pump provided at the upper end of the channel steel base. An energy-saving condensation integrated machine is provided on the side of the main body. There is also a steam dehumidification and collection tank between the main body and the energy-saving condensation integrated machine. A distribution header is provided on the side wall of the steam dehumidification and collection tank. The distribution header connects the main body and the steam dehumidification and collection tank. A safety valve is provided at the top of the distribution header;

[0010] The energy-saving condensation integrated machine includes tube sheets. There are four tube sheets, which are fixedly arranged around the perimeter. A top plate is provided at the top of the tube sheets. A bottom plate is provided at the bottom of the tube sheets. An inlet flue and an outlet flue are provided at the bottom of one side wall of the tube sheets;

[0011] A plurality of finned tubes are provided inside the tube sheets. The finned tubes are connected end to end through elbows. The end of the finned tube is connected to a water inlet header. The tail of the finned tube is connected to a water outlet header. A channel steel seat is provided at the bottom of the bottom plate. The channel steel seat is fixedly connected to the bottom plate.

[0012] The outside of the energy-saving condensation integrated machine is wrapped with a heat preservation shell. A plurality of stiffening rib plates are provided at the upper end of the side wall of the tube sheets.

[0013] A fully automatic electric control cabinet is also provided on the side of the main body. The fully automatic electric control cabinet is used for controlling the electric operation of the entire boiler.

[0014] The outside of the main body is wrapped with a heat preservation layer.

[0015] A channel steel base is provided at the bottom of the main body. A fixed foundation is provided at the lower end of the channel steel base. The fixed foundation is fixedly installed on the civil engineering foundation. The main body is fixed at the upper end of the channel steel base.

[0016] The utility model has the following beneficial effects compared with the prior art:

[0017] 1. By setting the energy-saving condensation integrated machine, the sensible heat in the flue gas and the latent heat of vaporization after the condensation of water vapor are recovered to the limit, the feed water temperature is increased, the flue gas discharge temperature is reduced, the gas cost is saved, and the thermal efficiency of the boiler is effectively improved;

[0018] 2. The boiler adopts an integral skid-mounted structure, which is compact, reduces the floor area in the boiler room, and is convenient for users to install and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall front structure of the utility model;

[0020] Figure 2 is a schematic diagram of the side structure of the utility model;

[0021] Figure 3 is the utility model Figure 1 in the schematic diagram of the structure in the K direction;

[0022] Figure 4 is a front - view structural schematic diagram of the main body of the present utility model;

[0023] Figure 5 is a top - view structural schematic diagram of the main body of the present utility model;

[0024] Figure 6 is a structural schematic diagram of the energy - saving condensation integrated machine of the present utility model;

[0025] Figure 7 is a side - view structural schematic diagram of the energy - saving condensation integrated machine of the present utility model;

[0026] In the figure: 1. Main body; 2. Furnace door structure; 3. Distribution header; 4. Energy - saving condensation integrated machine; 5. Pipeline instrument valve; 6. Thermal insulation layer; 7. Steam dehumidification header; 8. Full - automatic electric control cabinet; 9. Plunger pump; 10. Channel steel base; 11. Fixed foundation; 12. Burner; 13. Gas valve group; 14. Safety valve; 15. Thermal insulation shell; 16. Outer cladding plate; 17. Elbow; 18. Finned tube; 20. Outlet water header; 21. Tube sheet; 22. Top plate; 23. Reinforcing rib plate; 24. Inlet water header; 25. Inlet smoke port; 26. Drainage elbow; 27. Outlet smoke port; 31. Bottom plate; 32. Channel steel seat. Specific embodiments

[0027] Next, in combination with the attached drawings and specific embodiments, the present utility model will be further described. It should be noted that, on the premise of no conflict, any combination of the following - described embodiments or technical features can form a new embodiment.

[0028] The present utility model will be further described below with reference to the attached drawings.

[0029] As Figures 1 to 7 shown, a horizontal coiled - tube steam boiler includes a main body 1. A furnace door mechanism is provided at the top of the main body 1. A burner 12 is further provided at the upper end of the furnace door mechanism. A gas valve group 13 is further provided at the side of the burner 12, and the gas valve group 13 is communicated with the burner 12;

[0030] A plunger pump 9 is further provided at the upper end of the channel steel base 10. An energy - saving condensation integrated machine 4 is provided at the side of the main body 1. A steam dehumidification header 7 is further provided between the main body 1 and the energy - saving condensation integrated machine 4. A distribution header 3 is provided on the side wall of the steam dehumidification header 7. The distribution header 3 connects the main body 1 and the steam dehumidification header 7, and a safety valve 14 is provided at the top of the distribution header 3;

[0031] The energy-saving condensing integrated machine 4 includes tube sheets 21. There are four tube sheets 21, which are fixedly arranged around the periphery. A top plate 22 is provided at the top of the tube sheet 21, a bottom plate 31 is provided at the bottom of the tube sheet 21, and a smoke inlet 25 and a smoke outlet 27 are provided at the bottom of one side wall of the tube sheet 21;

[0032] A plurality of finned tubes 18 are provided inside the tube sheet 21. The finned tubes 18 are connected end to end through elbows 17. An inlet water header 24 is connected to the end of the finned tube 18, and an outlet water header 20 is connected to the tail of the finned tube 18. A channel steel seat 32 is provided at the bottom of the bottom plate 31, and the channel steel seat 32 is fixedly connected to the bottom plate 31.

[0033] The energy-saving condensing integrated machine 4 is wrapped with a heat-insulating shell 15 on the outside. A plurality of stiffening rib plates 23 are provided at the upper end of the side wall of the tube sheet 21. A drain elbow 26 is also provided at the smoke outlet 27 to prevent the accumulation of condensed water from corroding the inside. The heat-insulating shell 15 outside the energy-saving condensing integrated machine 4 can play a heat-insulating role for the flue gas inside it, slow down the heat dissipation of the flue gas, and greatly improve the utilization efficiency of the heat inside the flue gas.

[0034] A full-automatic electric control cabinet 8 is also provided on the side of the main body 1. The full-automatic electric control cabinet 8 is used for controlling the electric operation of the whole boiler. It adopts a 7-inch liquid crystal display touch screen and is perfectly matched with a high-performance programmable PLC controller. It can effectively record the operation state of the boiler in real time and comprehensively monitor the operation safety of the boiler.

[0035] The main body 1 is wrapped with a heat-insulating layer 6 on the outside. The heat-insulating layer 6 outside the main body 1 effectively plays a heat-insulating role for the boiler, slows down the heat dissipation, and ensures the thermal efficiency of the boiler.

[0036] A channel steel base 10 is provided at the bottom of the main body 1. A fixed foundation 11 is provided at the lower end of the channel steel base 10. The fixed foundation 11 is fixedly installed on the civil engineering foundation. The main body 1 is fixed on the upper end of the channel steel base 10. The channel steel base 10 has high strength and can bear a large-weight boiler without deformation.

[0037] The above-mentioned embodiments are only the preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited by this. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the protection scope required by the present invention.

Claims

1. A horizontal coil steam boiler, comprising a body (1), characterized in that: A furnace door mechanism is provided on the top of the body (1), a burner (12) is provided on the upper end of the furnace door mechanism, a gas valve group (13) is provided on the side of the burner (12), and the gas valve group (13) is connected to the burner (12); A channel steel base (10) is provided at the bottom of the body (1), a fixed foundation (11) is provided at the lower end of the channel steel base (10), the fixed foundation (11) is fixedly installed on a civil engineering foundation, and the body (1) is fixed to the upper end of the channel steel base (10); A plunger pump (9) is also provided at the upper end of the channel steel base (10); an energy-saving integrated condensing machine (4) is provided on the side of the body (1); a steam dehumidification header (7) is also provided between the body (1) and the energy-saving integrated condensing machine (4); a distribution header (3) is provided on the side wall of the steam dehumidification header (7); the distribution header (3) connects the body (1) and the steam dehumidification header (7); a safety valve (14) is provided on the top of the distribution header (3); The energy-saving condensing integrated machine (4) comprises a tube sheet (21), wherein four tube sheets (21) are provided and fixedly arranged around the four sides, a top plate (22) is provided at the top of the tube sheet (21), a bottom plate (31) is provided at the bottom of the tube sheet (21), and a smoke inlet (25) and a smoke outlet (27) are provided at the bottom of a side wall of the tube sheet (21); A plurality of fin tubes (18) are arranged inside the tube sheet (21), and the fin tubes (18) are connected end to end via an elbow (17). The ends of the fin tubes (18) are connected to a water inlet header (24), and the tails of the fin tubes (18) are connected to a water outlet header (20). A channel steel seat (32) is arranged at the bottom of the bottom plate (31), and the channel steel seat (32) is fixedly connected to the bottom plate (31).

2. A horizontal coil steam boiler according to claim 1, characterized in that: The energy-saving integrated condensing machine (4) is wrapped with a heat-insulating shell (15) on the outside, and a plurality of reinforcing rib plates (23) are provided on the upper end of the side wall of the tube sheet (21).

3. A horizontal coil steam boiler according to claim 2, characterized in that: A fully automatic electrical control cabinet (8) is also provided on the side of the body (1), and the fully automatic electrical control cabinet (8) is used for controlling the electrical operation of the entire boiler.

4. A horizontal coil steam boiler according to claim 3, characterized in that: The body (1) is wrapped with a heat-insulating layer (6) on the outside.

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