Flow guide baffle and steam generator thereof

Abstract

The utility model relates to the technical field of steam generators, in particular to a flow guide baffle machine steam generator, a flow guide baffle comprises a mounting part and a blocking part, the mounting part is arranged on the side wall of the blocking part and used for being connected with the side wall of a heat exchange chamber, and the blocking part is correspondingly arranged at a smoke outlet of the heat exchange chamber. And a sending-out part is arranged on the blocking part, so that smoke can flow at the blocking part. According to the evaporation coil, the uniformity of heat borne by the two sides of an existing evaporation coil is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of steam generators, and in particular to a guide baffle and a steam generator thereof. Background Art

[0002] Steam generator, also called steam heat source machine, is a mechanical equipment that uses the thermal energy of fuel or other energy sources to heat water into hot water or steam. It is now widely used in power generation, heating, chemical industry, food processing and other industries.

[0003] The existing steam generator mainly consists of an evaporation coil, a burner, a heat exchange chamber, and an exhaust system. When working, water flows into the evaporation coil inside the heat exchange chamber, and the high-temperature flue gas is passed into the heat exchange chamber through the burner to exchange heat with the water flowing in the evaporation coil, so that the water vapor after heating and evaporation is output from the other end of the evaporation coil, and the flue gas after combustion is sent out from the exhaust port on one side of the heat exchange chamber.

[0004] At present, in order to improve the efficiency of smoke delivery, a pumping mechanism is added to the smoke exhaust port on one side of the heat exchange chamber. However, when the pumping mechanism is working, the smoke in the heat exchange chamber will quickly concentrate and flow out from the smoke exhaust port side, which leads to a reduction in the heat received by the evaporator coil on the side far from the smoke exhaust port, resulting in uneven heat received by both sides of the evaporator coil. Utility Model Content

[0005] In order to effectively improve the uniformity of heat received by both sides of an existing evaporator coil, the present application provides a guide baffle and a steam generator thereof.

[0006] The present application provides a guide baffle adopting the following technical solution:

[0007] A guide baffle comprises: a mounting portion and a blocking portion, wherein the mounting portion is arranged on the side wall of the blocking portion and is used to be connected to the side wall of a heat exchange chamber, the blocking portion is correspondingly arranged at the smoke exhaust port of the heat exchange chamber, and the blocking portion is provided with a delivery portion to facilitate the deceleration of smoke flow at the blocking portion.

[0008] By adopting the above technical solution, the blocking part can be stably mounted on the side wall of the heat exchange chamber corresponding to the smoke exhaust port through the mounting part, while the provision of the delivery part can facilitate the outflow of high-temperature flue gas close to the smoke exhaust port, thereby helping to reduce the flow rate of high-temperature flue gas in the heat exchange chamber close to the smoke exhaust port, thereby achieving the purpose of improving the uniformity of heat received by both sides of the evaporator coil.

[0009] Optionally, the mounting portion includes: at least one connecting member, which is arranged on the side wall of the blocking portion and connected to the side wall of the heat exchange chamber.

[0010] By adopting the above technical solution, the connecting piece can stably install the blocking part on the side wall of the heat exchange chamber, thereby effectively improving the stability of the blocking part when blocking high-temperature flue gas.

[0011] Optionally, the blocking portion includes: a diverter, one side of which is connected to the side wall of the heat exchange chamber via a connecting piece.

[0012] By adopting the above technical solution, the diverter can delay and block the smoke near the smoke exhaust port, thereby making the high-temperature smoke flow more even in the heat exchange chamber.

[0013] Optionally, the delivery portion includes: a plurality of guide holes, and the plurality of guide holes are all opened on the surface of the diverter and are connected to the smoke exhaust port.

[0014] By adopting the above technical solution, multiple guide holes can effectively slow down the flow rate of the airflow at the smoke exhaust port, so that the high-temperature smoke can flow more evenly at multiple positions of the evaporator coil.

[0015] Optionally, the other side of the diverter is close to the outer wall of the evaporation coil arranged in the heat exchange chamber.

[0016] By adopting the above technical solution, part of the high-temperature flue gas can flow out from the two ends of the diverter to the exhaust port, thereby achieving a balance between the exhaust efficiency and flow uniformity of the high-temperature flue gas, and reducing overheating caused by the accumulation of high-temperature flue gas in local parts of the evaporator coil.

[0017] Optionally, the flow divider is configured as an arc as a whole to increase the proximity between the flow divider and the outer wall of the evaporating coil.

[0018] By adopting the above technical solution, the arc-shaped diverter can effectively improve the proximity between the diverter and the outer wall of the evaporator coil, which can further help to achieve a balance between the discharge efficiency and flow uniformity of the high-temperature flue gas.

[0019] Optionally, the connecting piece is arranged on the side wall of the diverter piece in the length direction.

[0020] By adopting the above technical solution, it is helpful to reduce the obstruction of the connecting piece to the high-temperature flue gas flowing from both ends of the diverter, and at the same time reduce the direct impact of the high-temperature flue gas on the connecting piece, which leads to a decrease in the stability of the connecting piece.

[0021] On the other hand, the present application also provides a steam generator, wherein a positioning portion connected to the mounting portion is provided on the inner side of the heat exchange chamber, and the area of ​​the blocking portion is larger than the diameter of the smoke exhaust port.

[0022] By adopting the above technical solution, the installation stability of the blocking part on the inner wall of the heat exchange chamber can be further improved, and at the same time, the blocking part of the smoke at the smoke exhaust port can be effectively enhanced, thereby reducing the flow rate of the smoke near the smoke exhaust port, making the smoke flow in the heat exchange chamber more uniform, and achieving the purpose of making the outer wall of the evaporator coil at different positions more evenly heated.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The blocking part can be stably mounted on the side wall of the heat exchange chamber corresponding to the smoke exhaust port through the mounting part, and the arrangement of the delivery part can facilitate the outflow of high-temperature smoke near the smoke exhaust port, thereby helping to reduce the flow rate of high-temperature smoke near the smoke exhaust port in the heat exchange chamber, thereby achieving the purpose of improving the uniformity of heat received by both sides of the evaporator coil;

[0025] 2. By providing the positioning portion, the installation stability of the blocking portion on the inner wall of the heat exchange chamber can be further improved. At the same time, by setting the area of ​​the blocking portion to be larger than the diameter of the smoke exhaust port, the blocking of the smoke by the blocking portion at the smoke exhaust port can be effectively enhanced, thereby reducing the flow rate of the smoke near the smoke exhaust port, making the smoke flow in the heat exchange chamber more uniform, and achieving the purpose of making the outer wall of the evaporator coil at different positions more evenly heated. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a partial structural schematic diagram of a steam generator according to an embodiment of the present application;

[0027] Figure 2 is a schematic diagram of the internal structure of a steam generator according to an embodiment of the present application;

[0028] Figure 3 is a schematic diagram of the internal structure of the steam generator of the embodiment of the present application from another perspective;

[0029] Figure 4 It is a schematic diagram of the structure of the guide baffle of the embodiment of the present application.

[0030] Explanation of the reference numerals: 1. Mounting part; 11. Connecting piece; 2. Blocking part; 21. Diverter; 3. Heat exchange chamber; 31. Burner; 32. Water inlet; 33. Water outlet; 4. Smoke exhaust port; 5. Delivery part; 51. Guide hole; 6. Evaporating coil; 7. Positioning part. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail. Example

[0032] The present application embodiment discloses a guide baffle. Figure 1-2The guide baffle includes a mounting portion 1 and a blocking portion. The blocking portion is mounted on the inner wall of the heat exchange chamber 3 through the mounting portion 1, and the position of the blocking portion corresponds to the position of the smoke outlet 4 on the side wall of the heat exchange chamber 3. At the same time, in order to slow down the flow speed of the high-temperature smoke on the side of the heat exchange chamber 3 close to the smoke outlet 4, a delivery portion 5 is also provided on the blocking portion.

[0033] During operation, the high-temperature flue gas inside the heat exchange chamber 3 will flow under the negative pressure on one side of the smoke exhaust port 4. At this time, the high-temperature flue gas close to the smoke exhaust port 4 can be slowed down under the blocking effect of the barrier part, and can flow out to the smoke exhaust port 4 at both ends of the barrier part and the delivery part 5, so as to reduce the pressure difference between one side and the other side of the smoke exhaust port 4 in the heat exchange chamber 3, so that the high-temperature flue gas can flow evenly at multiple positions outside the evaporator coil 6, so as to achieve the purpose of evenly heating both sides of the evaporator coil 6.

[0034] Reference Figure 1-3 In this embodiment, the mounting portion 1 includes a connector 11, and one end of the connector 11 is connected to the inner wall of the heat exchange chamber 3 near the smoke exhaust port 4. In this embodiment, a plurality of connectors 11 are evenly arranged, and the other ends of the plurality of connectors 11 are connected to the side wall of the barrier portion.

[0035] In this embodiment, the blocking portion includes a diverter 21, and the two long sides on one side of the diverter 21 are respectively connected to a plurality of connectors 11, and the overall area is larger than the diameter of the smoke outlet 4. At the same time, the cross-section of the diverter 21 is arranged in an arc shape as a whole, and the arc center is located on one side of the evaporation coil 6. In addition, the connector 11 extends toward the side close to the evaporation coil 6, and the arc center side of the diverter 21 is close to the outer wall of the evaporation coil 6, so that part of the high-temperature flue gas can flow out from both ends of the diverter 21 to the smoke outlet 4, thereby achieving a better balance between the discharge efficiency and flow uniformity of the high-temperature flue gas.

[0036] Reference Figure 1 and 4 In this embodiment, the delivery portion 5 includes a guide hole 51. A plurality of guide holes 51 are provided, and the plurality of guide holes 51 are evenly distributed on the surface of the diverter 21. At the same time, the two short sides of each guide hole 51 are both configured to be convex arcs, so as to further improve the balance between the discharge efficiency and the flow uniformity of the high-temperature flue gas, thereby achieving the purpose of improving the heat exchange efficiency inside the heat exchange chamber 3.

[0037] On the other hand, refer to Figure 1-2The embodiment of the present application further provides a steam generator, including a burner 31, a water inlet 32 ​​and a water outlet 33. The burner 31 is installed on one side of the heat exchange chamber 3 and the output end extends to the middle of the inner side of the heat exchange chamber 3. The water inlet 32 ​​and the water outlet 33 are respectively installed on both sides of the heat exchange chamber 3 and are respectively connected to the input end and the output end of the evaporation coil 6.

[0038] Working principle: When in use, water is first input into the evaporation coil 6 from the water inlet 32. When the water flows along the evaporation coil 6, it is heated and gasified by the high-temperature flue gas sent from the output end of the burner 31 in the heat exchange chamber 3, and finally flows out from the output end of the evaporation coil 6 to the water outlet 33 for discharge and use;

[0039] Among them, the high-temperature flue gas will flow evenly inside the heat exchange chamber 3, and after evenly heating different positions of the evaporator coil 6, an exhaust system is set outside the smoke exhaust port 4 to pump it to the position of the heat exchange chamber 3 near the smoke exhaust port 4. At this time, the high-temperature flue gas will be decelerated due to the presence of the diverter 21, and flow out from the two ends of the diverter 21 and the guide hole 51 to the smoke exhaust port 4, and finally discharged from the smoke exhaust port 4.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A guide baffle, characterized in that: include: A mounting portion (1) and a blocking portion (2), wherein the mounting portion (1) is arranged on a side wall of the blocking portion (2) and is used to be connected to a side wall of a heat exchange chamber (3), the blocking portion (2) is correspondingly arranged at a smoke exhaust port (4) of the heat exchange chamber (3), and a delivery portion (5) is arranged on the blocking portion (2) to facilitate the deceleration of smoke flow at the blocking portion (2).

2. A guide baffle according to claim 1, characterized in that: The mounting portion (1) comprises: at least one connecting member (11), wherein the connecting member (11) is arranged on a side wall of the blocking portion (2) and connected to a side wall of the heat exchange chamber (3).

3. A guide baffle according to claim 2, characterized in that: The blocking portion (2) comprises a flow divider (21), one side of the flow divider (21) being connected to a side wall of the heat exchange chamber (3) via a connecting piece (11).

4. A guide baffle according to claim 3, characterized in that: The delivery portion (5) comprises: a plurality of flow guide holes (51); the plurality of flow guide holes (51) are all formed on the surface of the flow diverter (21) and are connected to the smoke exhaust port (4).

5. The guide baffle according to claim 3, characterized in that: The other side of the flow divider (21) is close to the outer wall of the evaporation coil (6) arranged in the heat exchange chamber (3).

6. A guide baffle according to claim 5, characterized in that: The flow divider (21) is configured as an arc as a whole, so as to increase the degree of proximity between the flow divider (21) and the outer wall of the evaporating coil (6).

7. The guide baffle according to claim 3, characterized in that: The connecting piece (11) is arranged on a side wall of the diverter piece (21) in the length direction.

8. A steam generator, using the guide baffle according to any one of claims 1 to 7, characterized in that: A positioning portion (7) connected to the mounting portion (1) is provided on the inner side of the heat exchange chamber (3); the area of ​​the blocking portion (2) is larger than the diameter of the smoke exhaust port (4).

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