A steam waste heat efficient recovery device
By designing the decontamination assembly and circulating water pump system in the steam waste heat recovery device, the problem of reducing heat recovery efficiency caused by condensate adsorption and dust adsorption is solved, and more efficient steam waste heat recovery is achieved.
Patent Information
- Application Number
- CN202420754975.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-04-11
AI Technical Summary
In the existing steam waste heat recovery device, condensate will adhere to the water pipe, resulting in a decrease in heat recovery efficiency, and dust in the flue gas will be adsorbed by the condensate water, resulting in dust accumulation in the heat recovery box, further reducing heat recovery efficiency.
An efficient steam waste heat recovery device including a waste heat recovery box, a cold water tank, a circulating water pump and a dew removal assembly is designed. The cold water is filled with the circulating water pipe through the circulating water pump, and the detachable assembly is used to remove condensate and adsorbed dust from the outer wall of the circulating water pipe.
It effectively prevents the condensate water from reabsorbing heat in the steam, improves heat recovery efficiency, and prevents dust in the flue gas from being adsorbed by condensate water, reduces the accumulation of dust in the heat recovery box, and further improves heat recovery efficiency.
Smart Images
Figure CN222703853U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat recovery, in particular to a steam waste heat high-efficiency recovery device. Background Art
[0002] When water or other liquids are heated, a large amount of steam will be generated. Directly discharging this steam will cause a large amount of heat energy to be lost and waste. Therefore, this steam can be reused through a steam waste heat recovery device, reducing energy consumption and being more environmentally friendly.
[0003] In the prior art, a utility model patent document with authorization announcement number "CN 214792656 U" and patent name "A steam waste heat recovery device for recovering low-pressure steam waste heat" discloses a steam waste heat recovery device for recovering low-pressure steam waste heat, including: a steam recovery box, the lower surface of which is fixed to the upper surface of a table body, and table legs are fixed at the corners of the lower surface of the table body, and a water injection pipe is connected to the left side of the upper end of the steam recovery box, an insulation layer, the left side monomer of the insulation layer is tightly fitted to the outer surface of the steam input pipe, and a long rod, the upper and lower ends of the long rod are connected to the center of the upper and lower ends of the steam recovery box by rotation.
[0004] In the above patent document, by mixing cold water with heated water, people can be prevented from being scalded, and it has a good heat insulation effect. However, the condensed water formed in the steam heat recovery box will adhere to the water pipe. When the steam waste heat recovery device is turned on next time, the condensed water will not only absorb the heat in the steam again, but also the dust in the flue gas will be adsorbed by the condensed water, finally resulting in continuous accumulation of dust in the flue gas in the heat recovery box, thereby reducing the efficiency of heat recovery. Utility Model Content
[0005] The utility model aims to solve the technical problem that condensed water formed in the steam heat recovery box adheres to the water pipe, and when the steam waste heat recovery device is turned on next time, the condensed water not only absorbs the heat in the steam again, but also the dust in the flue gas is adsorbed by the condensed water, which finally causes the dust in the flue gas to accumulate continuously in the heat recovery box, thereby reducing the efficiency of heat recovery.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A steam waste heat high-efficiency recovery device comprises a waste heat recovery box, a smoke inlet pipe and a smoke outlet pipe are respectively arranged on both sides of the waste heat recovery box, a cold water tank is arranged on the top of the waste heat recovery box, and a circulating water pump is also arranged on the top of the waste heat recovery box, and the circulating water pump is located on one side of the cold water tank, the output end of the circulating water pump is conductively connected to the cold water tank, and the input end thereof is conductively connected to a serpentine circulating water pipe arranged in the waste heat recovery box, an electric push rod is arranged on the outside of the side wall of the waste heat recovery box, a dew removal component which abuts against the surface of the circulating water pipe is arranged on the output end of the electric push rod, and the other side of the circulating water pipe is conductively connected to one end of the cold water tank.
[0008] Working principle:
[0009] When it is necessary to remove the condensed water and the dust mixed with the condensed water in the waste heat recovery box, first, the cold water tank fills the circulating water pipe with cold water, and then the operator discharges the flue gas into the waste heat recovery box through one side of the waste heat recovery box until the temperature of the flue gas heats the water in the circulating water pipe to a certain temperature, and then the water in the circulating water pipe is replaced and overlapped by the circulating water pump, and then the operator starts the dew removal component, which removes the condensed water on the outer wall of the circulating water pipe and the dirty water of the flue gas absorbed by the condensed water, which not only prevents the condensed water from absorbing heat from the steam again, resulting in a lower heat recovery efficiency, but also prevents the dust in the flue gas from being absorbed by the condensed water, which finally causes the dust in the flue gas to accumulate continuously in the heat recovery box, thereby reducing the heat recovery efficiency.
[0010] The beneficial effects of the utility model are:
[0011] Compared with the patent literature mentioned in the background technology, the dew removal by the dew removal component can remove the condensed water on the outer wall of the circulating water pipe to a certain extent, preventing the condensed water attached to the outer wall of the circulating water pipe from needing to be reheated when heated by steam next time, thereby reducing the heating recovery efficiency. At the same time, the smoke adsorbed in the condensed water is also removed by the dew removal component, preventing the outer wall of the water pipe from being wrapped with a layer due to excessive smoke, thereby reducing the heat absorption efficiency of the circulating water pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;
[0013] Figure 2 This is a rear view outline diagram without the cold water tank and circulating water pump;
[0014] Figure 3 It is a schematic diagram of the partial structure of the first connecting rod, the second connecting rod, the first dew removal plate and the second dew removal plate.
[0015] Explanation of the reference numerals: waste heat recovery box 1, smoke inlet pipe 2, smoke outlet pipe 3, cold water tank 4, circulating water pump 5, circulating water pipe 6, electric push rod 7, first connecting rod 10, second connecting rod 11, first dew removal plate 12, second dew removal plate 13, long strip through groove 14, fluororubber 15, round bottom 16, discharge pipe 17, round cover 18, bolt 19, bolt groove 20, temperature sensor 21, smoke return pipe 22, fan 23, solenoid valve 24. DETAILED DESCRIPTION
[0016] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0017] like Figure 1 As shown, a steam waste heat efficient recovery device comprises a waste heat recovery box 1, and a smoke inlet pipe 2 and a smoke outlet pipe 3 are respectively arranged on both sides of the waste heat recovery box 1, a cold water tank 4 is arranged on the top of the waste heat recovery box 1, and a circulating water pump 5 is also arranged on the top of the waste heat recovery box 1, and the circulating water pump 5 is located on one side of the cold water tank 4, the output end of the circulating water pump 5 is conductively connected with the cold water tank 4, and the input end thereof is conductively connected with a serpentine circulating water pipe 6 arranged in the waste heat recovery box 1, an electric push rod 7 is arranged on the outside of the side wall of the waste heat recovery box 1, and a dew removal component that abuts against the surface of the circulating water pipe 6 is arranged on the output end of the electric push rod 7, and the other side of the circulating water pipe 6 is conductively connected with one end of the cold water tank 4.
[0018] When it is necessary to remove the condensed water and the dust mixed with the condensed water in the waste heat recovery box 1, first, the cold water tank 4 fills the circulating water pipe 6 with cold water, and then the operator discharges the flue gas into the waste heat recovery box 1 through one side of the waste heat recovery box 1 until the temperature of the flue gas heats the water in the circulating water pipe 6 to a certain temperature, and then the water in the circulating water pipe 6 is replaced and overlapped by the circulating water pump 5, and then the operator starts the dew removal component, which removes the condensed water on the outer wall of the circulating water pipe 6 and the dirty water of the flue gas absorbed by the condensed water, which not only prevents the condensed water from absorbing heat from the steam again, resulting in a low heat recovery efficiency, but also prevents the dust in the flue gas from being absorbed by the condensed water, which finally causes the dust in the flue gas to accumulate continuously in the heat recovery box, and finally causes the heat recovery efficiency to become low.
[0019] like Figure 1 , Figure 2 and Figure 3As shown, one end of the circulating water pipe 6 away from the circulating water pump 5 is connected to the cold water tank 4, and the other end of the circulating water pipe 6 is connected to the input end of the circulating water pump 5; the dew removal component includes a first connecting rod 10, a second connecting rod 11, a plurality of first dew removal plates 12 and two second dew removal plates 13, a vertical long strip through groove 14 is opened on the rear wall of the waste heat recovery box 1, one end of the first connecting rod 10 is fixedly connected to the output end of the electric push rod 7, the second connecting rod 11 is fixed at the other end of the first connecting rod 10, and the second connecting rod 11 passes through the long strip through groove 14, two second dew removal plates 13 are fixed on both sides of the second connecting rod 11, and abut against the outer walls of the circulating water pipe 6 at the two ends, and a plurality of the first dew removal plates 12 are fixed on the second connecting rod 11 and abut against the inner wall of the serpentine circulating water pipe 6.
[0020] By setting up a plurality of second dew removal plates 13, condensed water and smoke can be removed from the pipe walls between the serpentine circulating water pipes 6, and by setting up the second dew removal plates 13 at both ends of the second connecting rod 11, the outer side walls of both ends of the circulating water pipe 6 can be cleared, thereby maximizing the removal of condensed water and smoke attached to the condensed water from the circulating water pipe 6, thereby improving the efficiency of waste heat recovery.
[0021] like Figure 1 As shown, the surface of the long strip through groove 14 is fixed with fluororubber 15, and the fluororubber 15 abuts against each other when the first connecting rod 10 does not slide over, and the first connecting rod 10 slides and abuts between the fluororubber 15. The bottom ends of the two second dew removal plates 13 are convex round bottoms 16, and several first dew removal plates 13 also have convex round bottoms 16, and these round bottoms 16 are used to guide the dew to the bottom of the waste heat recovery box 1. Through the fluororubber 15, when the second connecting rod 11 is sliding, the fluororubber 15 at the position where the second connecting rod 11 slides will be closed due to elasticity, and the fluororubber 15 can withstand the heat brought by the flue gas, which improves the processing efficiency. By setting the bottom of the first dew removal plate 12 and the second dew removal plate 13 to be set as the round bottom 16, the condensed water can be more efficiently dropped from the dew removal plate, which improves the processing efficiency of dew removal.
[0022] like Figure 1 As shown, the bottom of the waste heat recovery box 1 is funnel-shaped, and a discharge pipe 17 is fixed on the bottom thereof, a round cover 18 is hinged on the discharge pipe 17, and bolts 19 are also included. A bolt 19 groove is opened on the wall thickness of the edge of the discharge pipe 17, and the bolt 19 passes through the round cover 18 and is screwed with the bolt 19 groove. The round cover 18 can be opened to discharge the condensed water and the smoke attached to the condensed water, thereby increasing the efficiency of waste heat recovery.
[0023] like Figure 1As shown, a temperature sensor 21 is provided inside the smoke outlet pipe 3, and a smoke return pipe 22 is conductively connected to the smoke outlet pipe 3. The other end of the smoke return pipe 22 is conductively connected to the smoke inlet pipe 2. A fan 23 for blowing smoke back to the smoke inlet pipe 2 is fixed on the smoke return pipe 22, and a solenoid valve 24 is provided on both the smoke inlet pipe 2 and the smoke outlet pipe 3. The temperature sensor 21 can be used to adjust the smoke at a usable temperature back to the smoke inlet pipe 2, further increasing the efficiency of waste heat recovery.
[0024] Working principle:
[0025] When it is necessary to remove the condensed book and the dust mixed with the condensed water in the waste heat recovery box 1, first, the cold water tank 4 fills the circulating water pipe 6 with cold water, and then the operator discharges the flue gas into the waste heat recovery box 1 through one side of the waste heat recovery box 1 until the temperature of the flue gas heats the water in the circulating water pipe 6 to a certain temperature, and then the circulating water pump 5 is used to replace and overlap the water in the circulating water pipe 6, and then the operator starts the electric push rod 7, and the output end of the electric push rod 7 drives the first connecting rod 10 to move vertically, The first connecting rod 10 electrically drives the second connecting rod 11 to move vertically, and the first dew-removing plate 12 and the second dew-removing plate 13 on the second connecting rod 11 clear the outer side walls of both ends of the circulating water pipe 6, thereby maximizing the removal of condensed water and smoke attached to the condensed water from the circulating water pipe 6. This not only prevents the condensed water from absorbing heat from the steam again, resulting in a lower heat recovery efficiency, but also prevents the dust in the flue gas from being adsorbed by the condensed water, which finally causes the dust in the flue gas to accumulate in the heat recovery box, thereby lowering the heat recovery efficiency.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A steam waste heat high-efficiency recovery device, comprising a waste heat recovery box (1), characterized in that: A smoke inlet pipe (2) and a smoke outlet pipe (3) are respectively provided on both sides of the waste heat recovery box (1), a cold water tank (4) is provided on the top of the waste heat recovery box (1), and a circulating water pump (5) is also provided on the top of the waste heat recovery box (1), and the circulating water pump (5) is located on one side of the cold water tank (4), the output end of the circulating water pump (5) is conductively connected to the cold water tank (4), and the input end thereof is conductively connected to a serpentine circulating water pipe (6) installed in the waste heat recovery box (1), an electric push rod (7) is installed on the outside of the side wall of the waste heat recovery box (1), and a dew removal component that abuts against the surface of the circulating water pipe (6) is provided on the output end of the electric push rod (7), and the other side of the circulating water pipe (6) is conductively connected to one end of the cold water tank (4).
2. A steam waste heat efficient recovery device according to claim 1, characterized in that: One end of the circulating water pipe (6) away from the circulating water pump (5) is connected to the cold water tank (4), and the other end of the circulating water pipe (6) is connected to the input end of the circulating water pump (5); the dew removal component comprises a first connecting rod (10), a second connecting rod (11), a plurality of first dew removal plates (12) and two second dew removal plates (13); a vertical long strip through groove (14) is provided on the rear wall of the waste heat recovery box (1), one end of the first connecting rod (10) is connected to the The output end of the electric push rod (7) is fixedly connected, the second connecting rod (11) is fixedly arranged at the other end of the first connecting rod (10), and the second connecting rod (11) passes through a long strip-shaped through groove (14), two pieces of the second dew removal plates (13) are fixedly arranged on both sides of the second connecting rod (11) and abut against the outer walls of the circulating water pipe (6) at the two ends, and a plurality of pieces of the first dew removal plates (12) are fixedly arranged on the second connecting rod (11) and abut against the inner wall of the serpentine circulating water pipe (6).
3. A steam waste heat efficient recovery device according to claim 2, characterized in that: Fluorine rubber (15) is fixedly provided on the surface of the long strip through groove (14), and the fluorine rubber (15) abuts against each other when the first connecting rod (10) does not slide over, and the first connecting rod (10) slides and abuts between the fluorine rubbers (15).
4. A steam waste heat efficient recovery device according to claim 2, characterized in that: The bottom ends of the two first dew removal plates (12) are convex round bottoms (16), and a plurality of second dew removal plates (13) are also convex round bottoms (16), and the round bottoms (16) are used to guide dew to the bottom of the waste heat recovery box (1).
5. The steam waste heat efficient recovery device according to claim 1 is characterized in that: The bottom of the waste heat recovery box (1) is funnel-shaped, and a discharge pipe (17) is fixedly arranged on the bottom. A round cover (18) is hingedly connected to the discharge pipe (17), and the discharge pipe (17) also includes a bolt (19). A bolt (19) groove is opened on the wall thickness of the edge of the discharge pipe (17), and the bolt (19) passes through the round cover (18) and is screwed to the bolt (19) groove.
6. The steam waste heat efficient recovery device according to claim 1, characterized in that: A temperature sensor (21) is provided inside the smoke outlet pipe (3), a smoke return pipe (22) is conductively connected to the smoke outlet pipe (3), the other end of the smoke return pipe (22) is conductively connected to the smoke inlet pipe (2), and a fan (23) for blowing smoke back to the smoke inlet pipe (2) is fixedly provided on the smoke return pipe (22).
7. The steam waste heat efficient recovery device according to claim 1 is characterized in that: The smoke inlet pipe (2) and the smoke outlet pipe (3) are both provided with electromagnetic valves (24).