Combined energy-saving boiler

Abstract

The utility model discloses a combined energy -conserving boiler, including frame, the door panel is equipped with in frame lateral wall, the frame bottom is equipped with a plurality of support, the support top is equipped with the furnace body, the furnace body bottom is equipped with the combustion subassembly, the frame middle part is equipped with the condenser, the cooler is passed through the smoke pipe support with the furnace body intercommunication, a plurality of water pumps are equipped with in the frame and the condenser side edge is located, one side door panel is equipped with control component, and the door panel middle part of same side is equipped with the display screen and control component electricity is connected, through the heating evaporation of water in the furnace body of combustion head, make the flue gas that produces through the smoke pipe support and flow to the condenser cooling processing, make the low temperature cooling water that transports to the condenser, absorb the heat in flue gas formation high temperature cooling water, and through the water pump and flow to the furnace body, to the high temperature cooling water of combustion head further heating evaporation processing, thereby promote the utilization effect of flue gas heat recovery effect and cooling water, increase the practicality of equipment.

Description

Technical Field

[0001] This utility model relates to the field of boiler equipment technology, and in particular to a combined energy-saving boiler. Background Technology

[0002] A boiler is an energy conversion device. The energy input to the boiler body includes the chemical energy of fuel and electrical energy. The boiler body outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. However, the boiler body has the problem of high flue gas temperature. In order to comply with national and relevant regulations, the flue gas of the boiler body needs to be treated. At present, it is difficult for the existing boiler body to effectively cool the flue gas and it is also difficult to recover a large amount of heat energy in the high-temperature flue gas, resulting in low heat utilization rate of the boiler body and poor overall performance. Utility Model Content

[0003] The purpose of this utility model is to provide a combined energy-saving boiler to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a combined energy-saving boiler, including a frame, door panels on all side walls of the frame, several supports at the bottom of the frame, a furnace body at the top of the supports, a combustion assembly inside the furnace body, a condenser in the middle of the frame, the condenser being connected to the furnace body via a flue pipe support, several water pumps on the side of the frame near the condenser, a control assembly on one side of the door panel, and a display screen electrically connected to the control assembly in the middle of the same side of the door panel.

[0005] Preferably, the frame is provided with casters at the four corners of the bottom, and a top plate is provided at the top of the frame. The top plate is provided with a smoke pipe opening, and waist-shaped grooves are symmetrically provided on both sides of the smoke pipe opening on the top plate.

[0006] Preferably, the frame is provided with a water level gauge at one corner that connects to the furnace body, and the door panel on the side of the water level gauge is provided with a slot for observing the water level gauge.

[0007] Preferably, the combustion assembly includes a burner head located inside the furnace body, a fan bracket located at the bottom of the furnace body on one side of the burner head, a fan connected to the fan bracket, a mixer connected to one side of the fan, and an air filter on one side of the mixer.

[0008] Preferably, the furnace body includes a furnace cylinder, with tube sheets at both ends of the furnace cylinder, and tubes inserted into the middle of the tube sheets on both sides. Water collection tanks are connected to both ends of the tubes, and several connecting pipes are provided on one side of the water collection tanks. Insulation cotton is provided at the center of the top and bottom of the furnace cylinder, and a pressure plate is provided on one side of the insulation cotton. A smoke outlet rack is provided on the inner wall of the furnace cylinder.

[0009] Preferably, the top water collection tank is provided with a perforated plate, and the middle of the tube is provided with a support rod.

[0010] Preferably, the condenser has a cooling chamber in the middle, a flue gas inlet is provided on the side wall of the cooling chamber, the condenser is connected to the cooling chamber and has a flue gas inlet, the cooling chamber has a number of through holes on the side, the through holes on both sides are connected to a finned tube, the condenser has a flow guide frame on the side, and a water storage chamber is provided on the top of the flow guide frame.

[0011] Preferably, a water baffle is provided in the middle of the flow guide frame on both sides, and the water baffle separates the flow guide frame and the finned tube into an S-shaped flow guide channel. A sewage pipe and a water inlet pipe are respectively provided at the bottom of the flow guide frame on one side.

[0012] Preferably, the top of the water storage chamber is provided with several furnace body flange pipes that communicate with the furnace body, and the center of the top of the water storage chamber is provided with a pressure relief flange pipe, which is connected to a pressure exhaust valve.

[0013] Preferably, the water pump inlet is connected to the condenser via a water pipe, and the water pump outlet is connected to the furnace body via a water pipe.

[0014] Preferably, the control assembly includes a control cabinet located on one side of the door panel, and a control unit electrically connected to the display screen is located in the middle of the control cabinet.

[0015] Preferably, the control cabinet has a heat dissipation groove on one side.

[0016] The beneficial effects of this utility model are: 1. The combustion head of the combustion assembly heats and evaporates the water in the furnace, and the resulting flue gas is guided to the condenser through the flue pipe support. The condenser cools the flue gas, and the low-temperature cooling water in the condenser absorbs the heat from the flue gas to form high-temperature cooling water. This high-temperature cooling water is then pumped back into the furnace so that the combustion head can further heat and evaporate it. This improves the heat recovery effect of the flue gas and the utilization effect of the cooling water, thus increasing the practicality of the equipment.

[0017] 2. The internal structure of the furnace is heated by an upward-firing burner installed inside the furnace body. The burner is distributed in the middle area of ​​several tubes arranged in a ring around the furnace cylinder. After the burner is ignited, the flame is located in the middle of the bottom area of ​​the tubes, thus heating the tubes synchronously and evenly and improving the heating effect.

[0018] 3. High-temperature cooling water, which recovers heat from the flue gas in the condenser, is pumped to the water collection tank below the furnace drum and then guided to the water collection tank above through several tubes. The high-temperature cooling water entering the furnace is further heated and evaporated by the burner head and supplied to the external system through connecting pipes. The flue gas generated by combustion is guided to the condenser for cooling through the flue gas outlet rack. In this way, the cooling water absorbs a large amount of heat from the flue gas, which can effectively cool the flue gas in the furnace and improve the heat recovery effect of the flue gas and the utilization effect of the cooling water. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 This is a three-dimensional structural diagram of the embodiment of the present invention with the top plate removed; Figure 3 This is a cross-sectional perspective view of an embodiment of the present utility model. Figure 4 This is a three-dimensional structural diagram of the embodiment of the present invention with the door panel and top panel removed; Figure 5 This is a three-dimensional structural diagram of the furnace body and combustion assembly in an embodiment of the present utility model; Figure 6 This is a cross-sectional perspective view of the furnace body and combustion assembly in an embodiment of the present invention. Figure 7 This is a three-dimensional structural diagram of the condenser in an embodiment of the present invention; Figure 8 This is a cross-sectional perspective view of the condenser in an embodiment of the present invention.

[0020] In the diagram: 1. Frame; 2. Door panel; 3. Bracket; 4. Furnace body; 41. Furnace cylinder; 42. Tube sheet; 43. Tubes; 431. Support rod; 44. Water collection tank; 441. Perforated plate; 45. Connecting pipe; 46. Insulation cotton; 47. Pressure plate; 48. Smoke rack; 5. Combustion assembly; 51. Burner head; 52. Fan bracket; 53. Fan; 54. Mixer; 55. Air filter; 6. Condenser; 61. Cooling chamber; 62. Smoke guide port; 63. Smoke guide chamber; 64. Through hole; 65. 66. Finned tube; 66. Flow guide; 661. Water baffle; 67. Water storage chamber; 7. Smoke pipe support; 8. Water pump; 9. Control components; 91. Control cabinet; 92. Control unit; 93. Heat dissipation trough; 10. Display screen; 12. Top plate; 13. Smoke pipe outlet; 14. Waist-shaped groove; 15. Water level gauge; 16. Groove opening; 17. Sewage pipe; 18. Water inlet pipe; 19. Furnace body flange pipe; 20. Pressure relief flange pipe; 21. Pressure exhaust valve; 22. Connecting flange; 23. Observation hole; 24. Smoke baffle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 8 This utility model provides a combined energy-saving boiler, including a frame 1, with door panels 2 on each side wall of the frame 1, several supports 3 at the bottom of the frame 1, a furnace body 4 at the top of the supports 3, a combustion assembly 5 inside the furnace body 4, a condenser 6 in the middle of the frame 1, the condenser 6 being connected to the furnace body 4 via a flue pipe support 7, several water pumps 8 on the side of the frame 1 near the condenser 6, a control assembly 9 on one side of the door panel 2, and a display screen 10 electrically connected to the control assembly 9 in the middle of the same side door panel 2. The water inside the furnace body 4 is heated and steamed by the burner head 51 of the combustion assembly 5. The combustion head 51 heats the flue gas to supply heat to the external system connected to the furnace body 4. At the same time, the flue gas heated by the combustion head 51 is guided to the condenser 6 through the flue pipe support 7 and cooled by the condenser 6. Low-temperature cooling water is also delivered to the condenser 6 to absorb heat from the flue gas and form high-temperature cooling water. This high-temperature cooling water is then guided to the furnace body 4 by the water pump 8 so that the combustion head 51 can further heat and evaporate the high-temperature cooling water. By absorbing a large amount of heat from the flue gas through the low-temperature cooling water and delivering it to the furnace body 4 for heating and evaporation, the flue gas in the furnace body 4 can be cooled conveniently. This also improves the heat recovery effect of the flue gas and the utilization effect of the cooling water, increasing the practicality of the equipment.

[0023] Specifically, the frame 1 has casters at the four corners of its bottom and a top plate 12 at its top. The top plate 12 has a flue gas inlet 13 and symmetrical waist-shaped grooves 14 on both sides of the flue gas inlet 13. The casters facilitate the movement and transportation of the equipment. By connecting the flue gas guide chamber 63 of the condenser 6 to the flue gas inlet 13, the cooled flue gas can be connected to external treatment equipment for further environmental treatment.

[0024] like Figure 2 As shown, specifically, the corner of the frame 1 is provided with a water level gauge 15 that connects to the furnace body 4. The door panel 2 on the side of the water level gauge 15 is provided with a slot 16 for observing the water level gauge 15. The water level gauge 15 makes it easy to grasp the water level inside the furnace body 4. The slot 16 on the side door panel 2 makes it easy to observe the water level gauge 15 and improves the aesthetics of the equipment.

[0025] like Figure 5 and Figure 6As shown, specifically, the combustion assembly 5 includes a burner head 51 located inside the furnace body 4. A fan bracket 52 is located at the bottom of the furnace body 4 on one side of the burner head 51. A fan 53 is connected to the fan bracket 52. A mixer 54 is connected to one side of the fan 53. An air filter 55 is located on one side of the mixer 54. The burner head 51, which burns upward inside the furnace body 4, heats the interior of the furnace body 4. By distributing the burner head 51 in the middle area of ​​several tubes 43 evenly arranged in a ring on the furnace cylinder 41, the flame of the burner head 51 is located in the middle of the bottom area of ​​a ring of tubes 43 after it is ignited, thereby synchronously and evenly heating a ring of tubes 43 and improving the heating effect.

[0026] Specifically, the blower 53 helps to promote the combustion of the burner head 51 and improve its combustion efficiency, while also maintaining the negative pressure inside the furnace barrel 41. The mixer 54 ensures that the fuel and air are fully mixed, thereby achieving stable and efficient combustion.

[0027] Specifically, air filter 55 filters out dust and impurities from the air, allowing clean air to be blown into the furnace body 4 by fan 53. This prevents dust and impurities from interfering with combustion in the furnace body 4, protecting the equipment and extending its service life.

[0028] like Figure 6 As shown, specifically, the furnace body 4 includes a furnace cylinder 41. Tube sheets 42 are provided at both ends of the furnace cylinder 41. A column of tubes 43 is inserted into the middle of the tube sheets 42 on both sides. A water collection tank 44 is connected to both ends of the column of tubes 43. Several connecting pipes 45 are provided on one side of the water collection tank 44. Insulation cotton 46 is provided at the center of the top and bottom of the furnace cylinder 41. A pressure plate 47 is provided on one side of the insulation cotton 46. A smoke outlet rack 48 is provided on the inner wall of the furnace cylinder 41. A corresponding water pump 8 is used to condense the high-temperature cooling process that recovers heat from the flue gas in the condenser 6. The cooling water is transported and guided to the water collection tank 44 below the furnace cylinder 41, and then guided to the water collection tank 44 above through several tubes 43. The high-temperature cooling water entering the furnace body 4 is further heated and evaporated by the burner head 51, and then supplied to the external system through the connecting pipe 45. The flue gas generated by combustion is guided to the condenser 6 through the flue gas rack 48 for cooling treatment. In this way, the cooling water absorbs a large amount of heat from the flue gas, which can easily cool the flue gas in the furnace body 4, thereby improving the heat recovery effect of the flue gas and the utilization effect of the cooling water.

[0029] Specifically, several of the connecting pipes 45 are respectively connected to a water level gauge 15, a pressure relief valve, and a steam port of an external system, so as to facilitate monitoring of the water level in the boiler through the water level gauge 15. At the same time, when the internal pressure of the boiler increases, the excess steam is discharged to the outside through the pressure relief valve to ensure the stability of the boiler during use. The connecting pipes 45 are connected to the steam port of the external system to realize the heating operation of the external system.

[0030] Specifically, the door panel 2 is provided with several pressure gauges on the side near the water level gauge 15. The pressure gauges are used to detect the internal pressure values ​​of the furnace body 4, water level gauge 15, etc.

[0031] Specifically, a viewing hole 23 can be provided on the top of the furnace body 4 to observe the combustion status of the internal burner head 51.

[0032] Specifically, the water collection tank 44 at the top is provided with a perforated plate 441 inside, and the tube 43 is provided with a support rod 431 in the middle. The perforated plate 441 facilitates the heating of steam, which is then transported to the external system through the holes in the perforated plate 441.

[0033] like Figure 7 and Figure 8 As shown, specifically, the condenser 6 has a cooling chamber 61 in the middle, and a flue gas inlet 62 is provided on the side wall of the cooling chamber 61. The condenser 6 is connected to the cooling chamber 61 by a flue gas inlet 63. The side of the cooling chamber 61 has several through holes 64, and the two through holes 64 are connected to finned tubes 65. The side of the condenser 6 has a flow guide frame 66, and the top of the flow guide frame 66 is connected to a water storage chamber 67. By connecting the flue gas inlet 62 on the side of the condenser frame to the flue gas outlet frame 48 of the furnace body 4, the high-temperature flue gas generated in the furnace body 4 is guided into the condenser frame. The low-temperature cooling water from the external water supply equipment is transported to the flow guide frame 66 by the corresponding water pump 8, so that the high-temperature flue gas discharged from the boiler can be quickly cooled through the several finned tubes 65 in the cooling chamber 61.

[0034] Specifically, a water baffle plate 661 is provided in the middle of the flow guide frame 66 on both sides. The water baffle plate 661 separates the flow guide frame 66 and the finned tube 65 into an S-shaped flow guide channel. A drain pipe 17 and a water inlet pipe 18 are respectively provided at the bottom of the flow guide frame 66 on one side. The water baffle plate 661, the flow guide frame 66 and the finned tube 65 cooperate to form an S-shaped flow guide channel, which facilitates the delivery of low-temperature cooling water to the flow guide frame 66 along the S-shaped flow guide channel, and provides convenient and efficient cooling treatment for the high-temperature flue gas discharged from the furnace body 4.

[0035] Specifically, the ends of the sewage pipe 17 and the water inlet pipe 18 are respectively connected to external water return equipment and external water supply equipment, so that the guide frame 66 can be treated for water return or water supply by controlling the external water return equipment and external water supply equipment.

[0036] Specifically, the top of the water storage chamber 67 is provided with several furnace body flange pipes 19 that are connected to the furnace body 4. The center of the top of the water storage chamber 67 is provided with a pressure relief flange pipe 20. The pressure relief flange pipe 20 is connected to a pressure exhaust valve 21. By connecting the pressure exhaust valve 21 to the top of the water storage chamber 67, it is convenient to automatically remove dissolved oxygen in the water body, prevent the air pressure in the water storage chamber 67 from being too high, and avoid potential safety hazards.

[0037] Specifically, the top side of the flow guide 66 and the side wall of the water storage chamber 67 are both provided with connecting flanges 22. The connecting flanges 22 on both sides are connected to each other through water pipes, so that the high-temperature cooling water heated in the flow guide 66 can be guided to the water storage chamber 67 for later use.

[0038] like Figure 4 As shown, specifically, the inlet of the water pump 8 on one side is connected to the furnace flange pipe 19 of the condenser 6 via a water pipe, and the outlet of the water pump 8 on the same side is connected to the furnace body 4 via a water pipe. By starting the water pump 8 on this side, the high-temperature cooling water in the condenser 6 is guided to the furnace body 4 for further heating and evaporation.

[0039] Specifically, the inlet of the water pump 8 on the other side is connected to the drain outlet of the external water supply equipment through a water pipe, and the outlet of the water pump 8 on this side is connected to the inlet pipe 18 of the condenser 6 through a water pipe. By starting the water pump 8 on this side, the low-temperature cooling water from the external water supply equipment is guided into the condenser 6 to further absorb the heat from the high-temperature flue gas in the furnace body 4, forming high-temperature cooling water for use in the furnace body 4, thereby improving the overall thermal efficiency of the boiler.

[0040] Specifically, the cooling chamber 61 is provided with a baffle plate 24 in the middle of the two side smoke inlets 62. The baffle plate 24 prevents the flue gas entering the cooling chamber 61 from the two side smoke inlets 62 from colliding and affecting the flow effect of the flue gas in the cooling chamber 61.

[0041] like Figure 3 As shown, specifically, the control component 9 includes a control cabinet 91 provided on one side of the door panel 2. The control cabinet 91 has a control unit 92 in the middle that is electrically connected to the display screen 10. The control unit 92 facilitates the control of the working status of the equipment and displays it on the display screen 10, which helps the staff to monitor the status of the equipment in real time.

[0042] Specifically, the control units 92 inside the control cabinet 91 are all conventional electrical equipment, and are equipped with existing control equipment such as PLC controllers to control the normal operation of the equipment.

[0043] Specifically, a heat dissipation groove 93 is provided on one side of the control cabinet 91. The heat dissipation groove 93 facilitates heat dissipation of the control cabinet 91 and prevents the temperature of the control cabinet 91 from being too high and affecting the working status of the control unit 92.

[0044] Specifically, by setting the heat sink 93 into an easily identifiable shape, the aesthetics of the device are improved.

[0045] Specifically, the burner head 51, fan 53, mixer 54, air filter 55, water pump 8, etc. are all existing technologies, and the standard parts used in this application are all products that can be directly purchased on the market, and the connection methods between the parts all adopt existing conventional technologies, so they will not be described in detail.

[0046] The working principle of this utility model is as follows: During use, the water in the furnace body 4 is heated and evaporated by the burner head 51 of the combustion component 5. The generated flue gas is guided to the condenser 6 through the flue pipe support 7 and cooled by the condenser 6. The low-temperature cooling water delivered to the condenser 6 absorbs the heat from the flue gas to form high-temperature cooling water, which is then guided to the furnace body 4 by the water pump 8 so that the burner head 51 can further heat and evaporate the high-temperature cooling water. This improves the heat recovery effect of the flue gas and the utilization effect of the cooling water, thereby increasing the practicality of the equipment.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combined energy-saving boiler, comprising a frame (1), characterized in that; The frame (1) is provided with door panels (2) on all side walls. The bottom of the frame (1) is provided with several supports (3). The top of the supports (3) is provided with a furnace body (4). The furnace body (4) is provided with a combustion assembly (5). The middle of the frame (1) is provided with a condenser (6). The condenser (6) is connected to the furnace body (4) through a flue pipe support (7). The frame (1) is provided with several water pumps (8) on the side of the condenser (6). One side of the door panel (2) is provided with a control assembly (9). The middle of the door panel (2) on the same side is provided with a display screen (10) that is electrically connected to the control assembly (9). The combustion assembly (5) includes a burner head (51) located inside the furnace body (4), a fan bracket (52) located at the bottom of the furnace body (4) on one side of the burner head (51), a fan (53) connected to the fan bracket (52), a mixer (54) connected to one side of the fan (53), and an air filter (55) on one side of the mixer (54). The furnace body (4) includes a furnace cylinder (41), both ends of which are provided with tube plates (42), and tubes (43) are inserted into the middle of the tube plates (42) on both sides. Both ends of the tubes (43) are connected to water collection tanks (44), and a number of connecting pipes (45) are provided on one side of the water collection tanks (44). Insulation cotton (46) is provided at the top and bottom center of the furnace cylinder (41), and a pressure plate (47) is provided on one side of the insulation cotton (46). A smoke outlet rack (48) is opened on the inner wall of the furnace cylinder (41).

2. The combined energy-saving boiler according to claim 1, characterized in that; The frame (1) has a top plate (12) at the top, the top plate (12) has a smoke pipe opening (13), and the top plate (12) has waist-shaped grooves (14) symmetrically arranged on both sides of the smoke pipe opening (13).

3. The combined energy-saving boiler according to claim 1, characterized in that; The corner of the frame (1) is provided with a water level gauge (15) that connects to the furnace body (4), and the door panel (2) on the side of the water level gauge (15) is provided with a slot (16) for observing the water level gauge (15).

4. The combined energy-saving boiler according to claim 1, characterized in that; The top water collection tank (44) is provided with a perforated plate (441), and the tube (43) is provided with a support rod (431) in the middle.

5. A combined energy-saving boiler according to claim 1, characterized in that; The condenser (6) has a cooling chamber (61) in the middle, and a flue gas inlet (62) is provided on the side wall of the cooling chamber (61). The condenser (6) is connected to the cooling chamber (61) and has a flue gas inlet (63). The cooling chamber (61) has several through holes (64) on its side. The through holes (64) on both sides are connected to a finned tube (65). The condenser (6) has a flow guide (66) on its side. The top of the flow guide (66) is connected to a water storage chamber (67).

6. A combined energy-saving boiler according to claim 5, characterized in that; A water baffle (661) is provided in the middle of the flow guide frame (66) on both sides. The water baffle (661) separates the flow guide frame (66) and the finned tube (65) into an S-shaped flow guide channel. A sewage pipe (17) and a water inlet pipe (18) are respectively provided at the bottom of the flow guide frame (66) on one side.

7. A combined energy-saving boiler according to claim 5, characterized in that; The top of the water storage chamber (67) is provided with several furnace body flange pipes (19) that are connected to the furnace body (4). The center of the top of the water storage chamber (67) is provided with a pressure relief flange pipe (20), and the pressure relief flange pipe (20) is connected to a pressure exhaust valve (21).

8. A combined energy-saving boiler according to claim 1, characterized in that; The control component (9) includes a control cabinet (91) provided on one side of the door panel (2), a control unit (92) electrically connected to the display screen (10) is provided in the middle of the control cabinet (91), and a heat dissipation groove (93) is provided on one side of the control cabinet (91).

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