Horizontal steam generator

Abstract

The utility model discloses a horizontal steam generator which comprises a lower collecting unit, a water cooling unit and an upper collecting unit, the upper end of the lower collecting unit is communicated with the water cooling unit, the upper end of the water cooling unit is communicated with the upper collecting unit, and the upper end of the upper collecting unit is connected with a steam collecting box; compared with the prior art, due to the arrangement of the lower collection unit, the water cooling unit and the upper collection unit, water can be combusted and heated through the combustion cavity, the heated water can form steam, the steam is collected into the steam collection box and finally discharged through the steam discharge pipe, and the sealing heat preservation unit is used for heat preservation. According to the utility model, the heating device can not only well seal and preserve heat of a heated main body, but also enable the heated main body to form a good smoke flow channel, so that waste heat of high-temperature smoke generated after combustion can be effectively utilized, the temperature of exhausted smoke is effectively reduced, fuel energy is saved, and the evaporation capacity of steam can be greatly improved in a limited space; and the steam output efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steam generators, in particular to a horizontal steam generator. Background Technique

[0002] A steam generator is a heat energy conversion device that heats the water flowing in the pipe into steam and quickly outputs steam externally. As the steam volume increases, its volume and water capacity also need to increase. When the water capacity exceeds 30L, it belongs to the category of boilers, which are special equipment that needs to be included in the national quality and technical supervision and management. Therefore, to ensure the safety of use, its water capacity is generally set within 30L, which results in limited evaporation (steam production)

[0003] Currently, in the prior art, the inventor found that there are certain drawbacks in the use of traditional steam generators. For example, the traditional heated water pipes are generally only arranged on both sides of the combustion chamber (or combustion cavity), and the heat generated by combustion in the combustion chamber is used to heat the water pipes, while the high-temperature flue gas (or hot gas) generated after heating is discharged. In order to increase the evaporation, it is necessary to increase the length or height of the combustion chamber, resulting in an oversized volume and size. Generally, only a cooling water tank is used to recover and cool the heat of the high flue gas temperature, but the effect is not good. Therefore, the utility model provides a horizontal steam generator. Content of the Utility Model

[0004] The purpose of the utility model is to provide a horizontal steam generator to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A horizontal steam generator, including a lower collector unit, a water-cooling unit and an upper collector unit. The upper end of the lower collector unit is connected to the water-cooling unit, and the upper end of the water-cooling unit is connected to the upper collector unit. The upper end of the upper collector unit is connected with a steam collecting tank, and an exhaust pipe is arranged at the upper end of the steam collecting tank. The outside of the lower collector unit, the water-cooling unit and the upper collector unit is provided with a sealing and heat-insulating unit. The sealing and heat-insulating unit includes a first side cover and a second side cover, and a flue gas flow channel is arranged inside the sealing and heat-insulating unit. A smoke exhaust port is opened on one side of the top of the sealing and heat-insulating unit. The flue gas flow channel includes a combustion chamber, a first hot flue, a second hot flue and a third hot flue, and the combustion chamber is connected to the smoke exhaust port through the first hot flue, the second hot flue and the third hot flue.

[0006] As a preferred technical solution of the utility model, the lower collector unit includes a plurality of lower through pipes and a lower main pipe. The lower through pipes are connected to the lower main pipe, and the upper end of the lower main pipe is connected to the water-cooling unit.

[0007] As a preferred technical solution of the present utility model, the water cooling unit includes a first water cooling module, a second water cooling module and a third water cooling module installed on the lower main pipe. The first hot flue is arranged between the second side cover and the first water cooling module. The second hot flue is arranged between the first water cooling module and the second water cooling module. The combustion chamber is arranged between the second water cooling module and the third water cooling module. The third hot flue is arranged between the third water cooling module and the first side cover. Both sides of the combustion chamber are respectively communicated with the third hot flue and the second hot flue. The side of the second hot flue far from the combustion chamber is communicated with the first hot flue.

[0008] As a preferred technical solution of the present utility model, the upper collection unit includes a plurality of upper main pipes connected to the upper ends of the first water cooling module, the second water cooling module and the third water cooling module. The outer surface of the upper main pipe is fixedly connected with an upper sealing plate. Both ends of the upper sealing plate are respectively fixedly connected with the first side cover and the second side cover. The upper end of the upper main pipe is connected to the bottom of the steam collector through an upper connecting pipe. The sum of the volumes of the lower collection unit, the water cooling unit and the upper collection unit is less than L.

[0009] As a preferred technical solution of the present utility model, the first water cooling module includes a first connecting wall and a plurality of first water cooling pipes. The first connecting wall is arranged at the outer surface position of the first water cooling pipes between the lower main pipe and the upper main pipe. A first flue opening is formed on the side of the first connecting wall far from the smoke exhaust port.

[0010] As a preferred technical solution of the present utility model, the second water cooling module includes a second connecting wall and a plurality of second water cooling pipes. The second connecting wall is arranged on the outer surface of the second water cooling pipes. A second flue opening is formed on the side of the second water cooling pipes close to the smoke exhaust port.

[0011] As a preferred technical solution of the present utility model, the third water cooling module includes a plurality of third water cooling pipes. A third connecting wall and a third flue opening are arranged between adjacent third water cooling pipes. The third flue opening is in two groups, and the two groups of third flue openings are respectively arranged above and below the third connecting wall.

[0012] As a preferred technical solution of the present utility model, a safety valve connecting pipe and a pressure connecting pipe are further installed at the upper end of the steam collector. One side of the bottom of the steam collector is fixedly installed with a return pipe, and the return pipe is arranged in a downward inclination. The lower end of the return pipe is fixedly connected to the upper collection unit.

[0013] As a preferred technical solution of the present utility model, a water level gauge upper installation pipe arranged in a downward inclination is further fixedly installed on one side of the steam collector. A water level gauge lower installation pipe is fixedly installed on the side of the water cooling unit close to the water level gauge upper installation pipe. The same water level gauge is installed on the water level gauge upper installation pipe and the water level gauge lower installation pipe. A main water inlet pipe is further fixedly installed on the lower collection unit.

[0014] As a preferred technical solution of the present utility model, the sealing and heat preservation unit further includes two side sealing plates, both of the two side sealing plates are fixedly installed between the first side cover and the second side cover, the two side sealing plates are respectively arranged at the front side and the rear side positions of the first side cover, and the first side cover, the second side cover, the two side sealing plates and the upper sealing plate enclose a downwardly open sealed container.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] A horizontal steam generator of the present utility model can heat water by burning through the combustion chamber by arranging a lower collecting unit, a water cooling unit and an upper collecting unit. The heated water can form steam and be collected into a steam collecting box, and finally discharged through an exhaust pipe. And by using the sealing and heat preservation unit, not only can the heated main body be well sealed and heat-preserved, but also a good flue gas passage can be formed, so that the waste heat of the high-temperature flue gas generated after combustion can be effectively utilized, not only effectively reducing the temperature of the discharged flue gas, saving fuel energy, but also greatly improving the evaporation amount of steam and the steam production efficiency within a limited space.

[0017] Other features and advantages of the present utility model will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic side view structure of the present utility model;

[0020] Figure 3 is a schematic diagram of the structure of the first water cooling module of the present utility model;

[0021] Figure 4 is a schematic diagram of the structure of the second water cooling module of the present utility model;

[0022] Figure 5 is a schematic diagram of the structure of the third water cooling module of the present utility model;

[0023] Figure 6 is a schematic diagram of the structure of the sealing and heat preservation unit of the present utility model;

[0024] Figure 7 is a schematic diagram of the flow direction of the flue gas passage of the present utility model;

[0025] In the figure: 10, main inlet pipe; 11, lower collecting unit; 111, lower main pipe; 112, lower through pipe; 12, water cooling unit; 121, first water cooling module; 1211, first water cooling pipe; 1212, first connecting wall; 1213, first flue gas inlet; 122, second water cooling module; 1221, second water cooling pipe; 1222, second connecting wall; 1223, second flue gas inlet; 123, third water cooling module; 1231, third water cooling pipe; 1232, third connecting wall; 1233, third flue gas inlet; 13, upper collecting unit; 131, upper main pipe; 132, upper sealing plate; 133, upper connecting pipe; 14, first side cover; 15, second side cover; 16, steam collecting box; 161, safety valve connecting pipe; 162, pressure connecting pipe; 163, return pipe; 164, upper mounting pipe for water level gauge; 165, lower mounting pipe for water level gauge; 17, exhaust pipe; 18, side sealing plate; 19, sealing and heat insulation unit; 30, combustion chamber; 31, first hot flue; 32, second hot flue; 33, third hot flue; 34, smoke exhaust port; 35, smoke flow channel. Detailed implementation mode

[0026] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is 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 orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0028] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0029] Please refer to Figure 1-7, in this embodiment, a horizontal steam generator is provided, which includes a lower collector unit 11, a water-cooling unit 12, and an upper collector unit 13. The upper end of the lower collector unit 11 is communicated with the water-cooling unit 12, the upper end of the water-cooling unit 12 is communicated with the upper collector unit 13, the upper end of the upper collector unit 13 is connected with a steam collector 16, and an exhaust pipe 17 is provided at the upper end of the steam collector 16. A sealing and heat-insulating unit 19 is provided outside the lower collector unit 11, the water-cooling unit 12, and the upper collector unit 13. The sealing and heat-insulating unit 19 includes a first side cover 14 and a second side cover 15, and a flue gas passage 35 is provided inside the sealing and heat-insulating unit 19. A smoke exhaust port 34 is opened on one side of the top of the sealing and heat-insulating unit 19. The flue gas passage 35 includes a combustion chamber 30, a first hot flue 31, a second hot flue 32, and a third hot flue 33, and the combustion chamber 30 is communicated with the smoke exhaust port 34 through the first hot flue 31, the second hot flue 32, and the third hot flue 33. By providing the lower collector unit 11, the water-cooling unit 12, and the upper collector unit 13, water can be heated by combustion through the combustion chamber 30. The heated water can form steam and be collected into the steam collector 16, and finally discharged through the exhaust pipe 17. Moreover, by using the sealing and heat-insulating unit 19, not only can the heated main body be well sealed and heat-insulated, but also a good flue gas passage 35 can be formed, so that the waste heat of the high-temperature flue gas generated after combustion can be effectively utilized. This not only effectively reduces the temperature of the discharged flue gas, saves fuel energy, but also can greatly increase the evaporation amount of steam and improve the steam production efficiency in a limited space.

[0030] The lower set unit 11 includes a plurality of lower through pipes 112 and a lower main pipe 111. The lower through pipes 112 communicate with the lower main pipe 111. The upper end of the lower main pipe 111 communicates with the water cooling unit 12. The water cooling unit 12 includes a first water cooling module 121, a second water cooling module 122, and a third water cooling module 123 installed on the lower main pipe 111. The first hot flue 31 is arranged between the second side cover 15 and the first water cooling module 121. The second hot flue 32 is arranged between the first water cooling module 121 and the second water cooling module 122. The combustion chamber 30 is arranged between the second water cooling module 122 and the third water cooling module 123. The third hot flue 33 is arranged between the third water cooling module 123 and the first side cover 14. Both sides of the combustion chamber 30 communicate with the third hot flue 33 and the second hot flue 32 respectively. The side of the second hot flue 32 away from the combustion chamber 30 communicates with the first hot flue 31. The upper set unit 13 includes a plurality of upper main pipes 131 connected to the upper ends of the first water cooling module 121, the second water cooling module 122, and the third water cooling module 123. The outer surface of the upper main pipe 131 is fixedly connected with an upper sealing plate 132. The two ends of the upper sealing plate 132 are fixedly connected with the first side cover 14 and the second side cover 15 respectively. The upper end of the upper main pipe 131 is connected to the bottom of the steam collector 16 through an upper connecting pipe 133. The sum of the volumes of the lower set unit 11, the water cooling unit 12, and the upper set unit 13 is less than 30L. The sealing and heat preservation unit 19 further includes two side sealing plates 18. Both of the two side sealing plates 18 are fixedly installed between the first side cover 14 and the second side cover 15. The two side sealing plates 18 are respectively arranged at the front side and the rear side positions of the first side cover 14. The first side cover 14, the second side cover 15, the two side sealing plates 18, and the upper sealing plate 132 enclose a downward-opening sealed container. One side of the steam collector 16 is also fixedly installed with a water level gauge upper installation pipe 164 arranged in a downward-sloping manner. One side of the water cooling unit 12 close to the water level gauge upper installation pipe 164 is fixedly installed with a water level gauge lower installation pipe 165. The same water level gauge is installed on the water level gauge upper installation pipe 164 and the water level gauge lower installation pipe 165. The main water inlet pipe 10 is also fixedly installed on the lower set unit 11. Among them, when the water to be heated and evaporated enters the lower set unit 11 through the main water inlet pipe 10, it can sequentially enter the lower through pipes 112 and the lower main pipe 111. By continuously adding water, the water can continuously rise into the first water cooling module 121, the second water cooling module 122, and the third water cooling module 123 of the water cooling unit 12. Then, by igniting the fuel in the combustion chamber 30, the side walls of the second water cooling module 122 and the third water cooling module 123 can be well heated, so that the water in the second water cooling module 122 and the third water cooling module 123 is heated and evaporated. The evaporated water rises into the upper main pipe 131 of the upper set unit 13, then enters the steam collector 16 through the upper connecting pipe 133, and is finally discharged through the exhaust pipe 17.

[0031] In this embodiment, the first water cooling module 121 includes a first connecting wall 1212 and a plurality of first water cooling pipes 1211. The first connecting wall 1212 is disposed at the outer surface position of the first water cooling pipes 1211 between the lower main pipe 111 and the upper main pipe 131. A first flue opening 1213 is formed on the side of the first connecting wall 1212 away from the smoke exhaust port 34. The second water cooling module 122 includes a second connecting wall 1222 and a plurality of second water cooling pipes 1221. The second connecting wall 1222 is disposed on the outer surface of the second water cooling pipes 1221. A second flue opening 1223 is formed on the side of the second water cooling pipes 1221 close to the smoke exhaust port 34. The third water cooling module 123 includes a plurality of third water cooling pipes 1231. A third connecting wall 1232 and a third flue opening 1233 are disposed between adjacent third water cooling pipes 1231. The third flue opening 1233 has two groups, and the two groups of third flue openings 1233 are respectively disposed above and below the third connecting wall 1232. The first connecting wall 1212, the second connecting wall 1222 and the third connecting wall 1232 are all made of heat-conducting metal materials. The first side cover 14, the second side cover 15, the two side sealing plates 18 and the upper sealing plate 132 are all made of high-temperature heat-insulating and heat-preserving materials. Among them, when a large amount of flue gas and hot air are generated by combustion in the combustion chamber 30, the high-temperature flue gas can enter the third hot flue 33 through the third flue opening 1233, so that the outer side wall of the third water cooling pipes 1231 of the third water cooling module 123 can be well heated. The first side cover 14 can prevent the high-temperature flue gas from escaping outward. The third connecting wall 1232 can achieve good heat conduction, so that each of the third water cooling pipes 1231 is uniformly heated, improving the steam heating effect. Due to the blocking effect of the side sealing plate 18, the high-temperature flue gas in the third hot flue 33 and the combustion chamber 30 can enter the second hot flue 32 through the second flue opening 1223. At this time, the high-temperature flue gas can well heat one side wall of the first water cooling module 121 and the second water cooling module 122, thereby effectively improving the steam output efficiency of the steam generator. Then the high-temperature flue gas enters the first hot flue 31 through the first flue opening 1213, forming a good flue gas flow channel 35, and finally is discharged through the smoke exhaust port 34. The flue gas flow channel 35 can make full use of the heat of the high-temperature flue gas, effectively reduce the discharge temperature of the flue gas, and can greatly increase the steam output and output efficiency of the steam generator, saving fuel energy.

[0032] In this embodiment, a safety valve connecting pipe 161 and a pressure connecting pipe 162 are further installed at the upper end of the steam collecting tank 16. A reflux pipe 163 is fixedly installed on one side of the bottom of the steam collecting tank 16, and the reflux pipe 163 is arranged in a downward slope. The lower end of the reflux pipe 163 is fixedly connected to the upper collecting unit 13. Among them, the water generated by steam condensation can be recycled into the upper collecting unit 13 again by using the reflux pipe 163. A sewage discharge pipe is also installed on the lower collecting unit 11, and the impurities in the steam can be recycled simultaneously through the return water, which is convenient for the collection and discharge of sewage. The safety valve connecting pipe 161 and the pressure connecting pipe 162 can be respectively installed with a safety valve and a pressure controller, so as to realize the safety control of the pressure condition in the steam generator.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A horizontal steam generator, characterized in that, It includes a lower collecting unit (11), a water cooling unit (12) and an upper collecting unit (13). The upper end of the lower collecting unit (11) is communicated with the water cooling unit (12), the upper end of the water cooling unit (12) is communicated with the upper collecting unit (13), the upper end of the upper collecting unit (13) is connected with a steam collecting tank (16), and an exhaust pipe (17) is arranged at the upper end of the steam collecting tank (16). A sealing and heat insulation unit (19) is arranged outside the lower collecting unit (11), the water cooling unit (12) and the upper collecting unit (13). The sealing and heat insulation unit (19) includes a first side cover (14) and a second side cover (15), and a smoke flow channel (35) is arranged inside the sealing and heat insulation unit (19). A smoke exhaust port (34) is opened on one side of the top of the sealing and heat insulation unit (19). The smoke flow channel (35) includes a combustion chamber (30), a first hot flue (31), a second hot flue (32), a third hot flue (33), and the combustion chamber (30) is communicated with the smoke exhaust port (34) through the first hot flue (31), the second hot flue (32) and the third hot flue (33).

2. The horizontal steam generator according to claim 1, characterized in that, The lower collecting unit (11) includes a plurality of lower through pipes (112) and a lower main pipe (111). The lower through pipes (112) are communicated with the lower main pipe (111), and the upper end of the lower main pipe (111) is communicated with the water cooling unit (12).

3. A horizontal steam generator according to claim 2, characterized in that, The water cooling unit (12) includes a first water cooling module (121), a second water cooling module (122) and a third water cooling module (123) installed on the lower main pipe (111). The first hot flue (31) is arranged between the second side cover (15) and the first water cooling module (121), the second hot flue (32) is arranged between the first water cooling module (121) and the second water cooling module (122), the combustion chamber (30) is arranged between the second water cooling module (122) and the third water cooling module (123), the third hot flue (33) is arranged between the third water cooling module (123) and the first side cover (14). Both sides of the combustion chamber (30) are communicated with the third hot flue (33) and the second hot flue (32) respectively, and the side of the second hot flue (32) far away from the combustion chamber (30) is communicated with the first hot flue (31).

4. A horizontal steam generator according to claim 3, characterized in that, The upper collecting unit (13) includes a plurality of upper main pipes (131) connected to the upper ends of the first water cooling module (121), the second water cooling module (122) and the third water cooling module (123). The outer surface of the upper main pipe (131) is fixedly connected with an upper sealing plate (132), and both ends of the upper sealing plate (132) are fixedly connected with the first side cover (14) and the second side cover (15) respectively. The upper end of the upper main pipe (131) is connected to the bottom of the steam collecting tank (16) through an upper connecting pipe (133).

5. A horizontal steam generator according to claim 4, characterized in that, The first water cooling module (121) includes a first connecting wall (1212) and a plurality of first water cooling pipes (1211), and the first connecting wall (1212) is arranged at the outer surface position of the first water cooling pipes (1211) between the lower main pipe (111) and the upper main pipe (131). A first flue gas port (1213) is formed on one side of the first connecting wall (1212) away from the smoke exhaust port (34).

6. A horizontal steam generator according to claim 4, characterized in that, The second water cooling module (122) includes a second connecting wall (1222) and a plurality of second water cooling pipes (1221), and the second connecting wall (1222) is arranged on the outer surface of the second water cooling pipes (1221). A second flue gas port (1223) is formed on one side of the second water cooling pipes (1221) close to the smoke exhaust port (34).

7. A horizontal steam generator according to claim 4, characterized in that, The third water cooling module (123) includes a plurality of third water cooling pipes (1231). A third connecting wall (1232) and a third flue gas port (1233) are arranged between adjacent third water cooling pipes (1231). There are two groups of the third flue gas ports (1233), and the two groups of the third flue gas ports (1233) are respectively arranged above and below the third connecting wall (1232).

8. A horizontal steam generator according to claim 4, wherein, An emergency valve connecting pipe (161) and a pressure connecting pipe (162) are further installed at the upper end of the steam collecting tank (16). A reflux pipe (163) is fixedly installed at one side of the bottom of the steam collecting tank (16), and the reflux pipe (163) is arranged in a downward inclined manner. The lower end of the reflux pipe (163) is fixedly connected to the upper collecting unit (13).

9. A horizontal steam generator according to claim 1, wherein, A water level gauge upper installation pipe (164) arranged in a downward inclined manner is further fixedly installed at one side of the steam collecting tank (16). A water level gauge lower installation pipe (165) is fixedly installed at the side of the water cooling unit (12) close to the water level gauge upper installation pipe (164). The same water level gauge is installed on the water level gauge upper installation pipe (164) and the water level gauge lower installation pipe (165). A main water inlet pipe (10) is further fixedly installed on the lower collecting unit (11).

10. A horizontal steam generator according to claim 4, characterized in that, The sealing and heat preservation unit (19) further includes two side sealing plates (18). The two side sealing plates (18) are both fixedly installed between the first side cover (14) and the second side cover (15). The two side sealing plates (18) are respectively arranged at the front side and the rear side positions of the first side cover (14). The first side cover (14), the second side cover (15), the two side sealing plates (18) and the upper sealing plate (132) enclose a downward-opening sealed container.

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