Combined mixing type dead steam recovery system

Abstract

The utility model belongs to the technical field of dead steam recovery, and particularly relates to a combined mixed dead steam recovery system which comprises a condenser, a cold water inlet and a dead steam inlet are formed in the outer side face of the condenser, a hot water outlet is formed in the bottom end of the condenser, an exhaust port is formed in the top end of the condenser, and the combined mixed dead steam recovery system further comprises a heat exchange mechanism. The internal space of the machine box is a heat exchange chamber, and the two ends of the machine box are provided with an air injection port and an air outlet respectively. A semiconductor chilling plate; a cold source heat exchange water tank; a heat source heat exchange water tank; a shunt tube; an insulating layer; according to the utility model, the heat exchange mechanism is arranged, the Peltier effect of the semiconductor chilling plate is utilized to refrigerate the production water, the production water at the cold end primarily condenses the dead steam and then enters the condenser, and the production water at the hot end and hot water generated in the dead steam condensation process are discharged from the collecting pipe, so that the condensation efficiency is high, the workload of the condenser is greatly reduced, and the energy consumption is reduced. Energy consumption is reduced, and long-term development of enterprises is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of waste steam recovery technology, specifically relating to a combined hybrid waste steam recovery system. Background Technology

[0002] The exhaust steam recovery device is designed for the condensate and demineralized water in the thermal cycle of thermal power plants. After the deaerator heats and deoxygenates the water, the non-condensable gases are discharged to the atmosphere through the exhaust pipe. However, the process of removing non-condensable gases generates a lot of noise and pollutes the environment. At the same time, some steam is also discharged, resulting in a waste of energy.

[0003] In the existing technology, there are many types of devices used to recover exhaust steam, such as indirect condensers and direct condensers.

[0004] Both indirect and direct condensers are used in waste steam recovery, the main difference being the contact method between steam and cooling medium.

[0005] After long-term use and observation, it was found that although the existing condenser technology can meet the general working requirements, the injected production water needs to be cooled beforehand. Otherwise, the condensation efficiency of the exhaust steam will be affected due to insufficient water temperature, which will increase the workload of the condenser and lead to a significant increase in energy consumption, which is not conducive to the long-term development of the enterprise.

[0006] To address the aforementioned problems, this utility model proposes a combined hybrid waste steam recovery system. Utility Model Content

[0007] To address the aforementioned problems in the existing technology, this utility model provides a combined hybrid waste steam recovery system, which features convenient use, low energy consumption, and high condensation efficiency.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a combined hybrid waste steam recovery system, comprising a condenser, with a cold water inlet and a waste steam inlet on the outer side of the condenser, a hot water outlet at the bottom of the condenser, and an exhaust port at the top; further comprising a heat exchange mechanism, wherein the heat exchange mechanism includes:

[0009] The chassis has an internal space that serves as a heat exchange chamber. Both ends of the chassis are provided with an air inlet and an air outlet, respectively. The air outlet is connected to the exhaust steam inlet. The bottom of the chassis is provided with a drain outlet, which is connected to the hot water outlet via a manifold.

[0010] A semiconductor refrigeration chip, which is fixed inside the chassis, with its top end being the heat-absorbing end and its bottom end being the heat-releasing end;

[0011] A cold source heat exchange tank is provided with an inlet and an outlet at both ends. The outlet is connected to the cold water inlet, and the cold source heat exchange tank is fixedly connected to the heat absorption end of the semiconductor cooling chip. When the production water flows through the cold source heat exchange tank, the heat is absorbed by the semiconductor cooling chip and transferred to the heat release end.

[0012] A heat source hot water exchange tank is fixedly connected to the heat-dissipating end of the semiconductor refrigeration chip. When the production water flows through the heat source hot water exchange tank, it absorbs the heat generated from the heat-dissipating end of the semiconductor refrigeration chip. A hot water outlet pipe is provided at the bottom of the heat source hot water exchange tank and the hot water outlet pipe is connected to the manifold.

[0013] Diverter pipe, one end of which is connected to the water inlet and the other end of which is connected to the heat source heat exchange tank;

[0014] An insulation layer is provided, which covers the exterior of the heat source hot water exchange tank.

[0015] As a preferred embodiment of this utility model, both the cold source hot water exchange tank and the heat source hot water exchange tank are enclosed box-shaped copper components.

[0016] As a preferred technical solution of this utility model, it also includes:

[0017] Fins are uniformly fixed to the outer wall of the cold source heat exchange tank.

[0018] As a preferred embodiment of this utility model, the chassis is a closed box-shaped steel component, and an insulation layer is fixed on the inner wall of the chassis.

[0019] As a preferred embodiment of this utility model, it further includes a filtration mechanism, and the filtration mechanism includes:

[0020] The treatment tank has an inlet and an outlet at both ends, and the outlet is connected to the inlet.

[0021] A porous filter plate is installed inside the processing box.

[0022] As a preferred technical solution of this utility model, it also includes:

[0023] C-shaped inserts, the porous filter plate is installed in the treatment box by a pull-out method, and the outer wall of the treatment box is processed with a disassembly and assembly port for the porous filter plate to pass through. Two C-shaped inserts are symmetrically fixed to the inner wall of the treatment box, and the porous filter plate is located between the two C-shaped inserts.

[0024] A limiting plate, wherein the limiting plate is fixed to one end of the porous filter plate;

[0025] Bolts, which pass through the limiting plate and are connected to the processing box by thread engagement.

[0026] As a preferred technical solution of this utility model, it also includes:

[0027] A sealing cap is provided at the bottom of the processing box for discharging impurities, and the sealing cap is installed at the opening of the discharging impurities by means of threaded engagement;

[0028] A rubber rod is fixed inside the sealing cap, and after the sealing cap is tightened, the top end of the rubber rod extends into the processing box.

[0029] As a preferred technical solution of this utility model, it also includes:

[0030] A handle, which is fixed to the limiting plate.

[0031] Compared with the prior art, the beneficial effects of this utility model are:

[0032] In this invention, the heat exchange mechanism utilizes the Peltier effect of the semiconductor cooling chip to cool the production water. The production water at the cold end undergoes initial condensation of the exhaust steam before entering the condenser. The production water at the hot end, along with the hot water generated during the condensation process of the exhaust steam, is discharged from the manifold. This design achieves high condensation efficiency, significantly reduces the workload of the condenser, lowers energy consumption, and is beneficial for the long-term development of the enterprise.

[0033] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0034] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0035] Figure 1 This is a schematic diagram of the structure of this utility model;

[0036] Figure 2 This is a schematic cross-sectional view of the heat exchange mechanism in this utility model;

[0037] Figure 3 This is a cross-sectional structural diagram of the filtration mechanism in this utility model.

[0038] In the diagram: 1. Condenser; 11. Cold water inlet; 12. Exhaust steam inlet; 13. Hot water outlet; 14. Exhaust port; 2. Heat exchange mechanism; 21. Chassis; 211. Heat exchange chamber; 212. Gas injection port; 213. Gas outlet; 214. Drain outlet; 22. Semiconductor refrigeration chip; 23. Cold source to hot water tank; 231. Water inlet; 232. Water outlet; 233. Fins; 24. Heat source to hot water tank; 241. Hot water outlet pipe; 25. Diverter pipe; 26. Insulation layer; 3. Filtration mechanism; 31. Processing tank; 311. Water inlet interface; 312. Water outlet interface; 313. Sludge discharge port; 314. Disassembly / removal port; 32. Porous filter plate; 33. Sealing cap; 331. Rubber rod; 34. C-shaped insert; 35. Limiting plate; 351. Handle; 36. Bolt; 4. Manifold. Detailed Implementation

[0039] 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.

[0040] Please see Figures 1-3 The present invention provides the following technical solution: a combined hybrid waste steam recovery system, including a condenser 1, a cold water inlet 11 and a waste steam inlet 12 on the outer side of the condenser 1, a hot water outlet 13 at the bottom of the condenser 1 and an exhaust port 14 at the top, and also includes a heat exchange mechanism 2, which includes: a casing 21, a semiconductor refrigeration chip 22, a cold source to hot water tank 23, a heat source to hot water tank 24, a diversion pipe 25 and an insulation layer 26.

[0041] Furthermore, by Figure 1 and Figure 2As shown, in this embodiment, the internal space of the chassis 21 is a heat exchange chamber 211, and the two ends of the chassis 21 are respectively provided with an air inlet 212 and an air outlet 213. The air outlet 213 is connected to the exhaust steam inlet 12. The bottom of the chassis 21 is provided with a drain outlet 214, and the drain outlet 214 is connected to the hot water outlet 13 via a manifold 4. The semiconductor cooling chip 22 is fixed inside the chassis 21, and the top of the semiconductor cooling chip 22 is the heat absorption end and the bottom end is the heat release end. The two ends of the cold source heat exchange tank 23 are respectively provided with a water inlet 231 and a water outlet 232, and the water outlet 232 is connected to the cold water inlet 11. The cold source hot water exchange tank 23 is fixedly connected to the heat-absorbing end of the semiconductor cooling chip 22. When the production water flows through the cold source hot water exchange tank 23, the heat is absorbed by the semiconductor cooling chip 22 and transferred to the heat-releasing end. The heat source hot water exchange tank 24 is fixedly connected to the heat-releasing end of the semiconductor cooling chip 22. When the production water flows through the heat source hot water exchange tank 24, it absorbs the heat generated from the heat-releasing end of the semiconductor cooling chip 22. A hot water outlet pipe 241 is provided at the bottom of the heat source hot water exchange tank 24, and the hot water outlet pipe 241 is connected to the manifold 4. One end of the branch pipe 25 is connected to the inlet 231, and the other end is connected to the heat source hot water exchange tank. Box 24, with insulation layer 26 covering the exterior of heat source heat exchanger 24. Using this scheme, during use, exhaust steam generated by industrial equipment enters through air inlet 212 and then into heat exchange chamber 211. Production water generated by industrial equipment enters through water inlet 231; part of the production water enters cold source heat exchanger 23, and part enters heat source heat exchanger 24. When the semiconductor cooling chip 22 is energized, the temperature of the heat absorption end decreases and the temperature of the heat release end increases. Therefore, the production water temperature in cold source heat exchanger 23 decreases, becoming cold water, while the temperature in heat source heat exchanger 24 decreases. The production water temperature rises and becomes hot water. After the cold source heat exchanger 23 condenses the exhaust steam for the first time, it enters the condenser 1. The hot production water and the hot water generated during the exhaust steam condensation process are discharged from the manifold 4. The condensation efficiency is high, which greatly reduces the workload of the condenser 1, reduces energy consumption, and is conducive to the long-term development of the enterprise. After the exhaust steam enters the condenser 1, it is further condensed by the condenser 1. The non-condensable gases that cannot be condensed are discharged from the exhaust port 14. The hot water generated during the condensation process merges with the hot water discharged from the manifold 4 in the hot water outlet 13 and is then discharged. The discharged hot water can be used rationally.

[0042] It is understood that the design of the insulation layer 26 of this utility model is to prevent the temperature of the heat source heat exchange tank 24 from overflowing, and to ensure that the exhaust steam only exchanges heat with the cold source heat exchange tank 23. The cold source heat exchange tank 23 performs initial condensation on the exhaust steam. The insulation layer 26 can be one of the common insulation materials such as vacuum insulation board, aerogel, aluminum silicate insulation material, and polyurethane foam material.

[0043] It should be noted that the cooling and heating of the semiconductor cooling chip 22 is a publicly available prior art, and the condenser 1 is a commercially available conventional condenser 1. Its internal structure and working principle have been fully disclosed in the prior art, and can be referred to the condenser 1 in the prior art. It will not be described in detail in this article.

[0044] It is worth mentioning that the recovery system of this utility model may further include components such as water pumps, fans, valves, and pressure gauges (all of which are shown in the figure). It can be understood that the production water is injected and discharged through the water pump, and the waste steam is injected into the recovery system through the fan. Valves are installed as needed on each pipeline and interface of the recovery system to control the on-off state. Pressure gauges are installed on the waste steam flow pipeline to monitor the pressure. The above settings are all conventional settings of waste steam recovery devices in the prior art, and will not be described in detail here.

[0045] Preferably, by Figure 1 and Figure 2 As shown in this embodiment, both the cold source hot water exchange tank 23 and the heat source hot water exchange tank 24 are enclosed box-shaped copper components. Copper components have high heat transfer efficiency, ensuring that the exhaust steam fully exchanges heat with the cold source hot water exchange tank 23 for initial condensation.

[0046] It should be noted that in this utility model, since the heat source hot water tank 24 does not come into contact with the exhaust steam throughout the process, other metal materials, such as steel, can be selected. This will not affect the use and can further reduce the cost of parts. It is understandable that, because copper components are more expensive, aluminum components can be used instead of copper components in actual use.

[0047] Preferably, by Figure 1 and Figure 2 As shown, in this embodiment, it also includes: fins 233, which are uniformly fixed to the outer wall of the cold source heat exchange tank 23. The heat exchange area is greatly increased by the fins 233, making the initial condensation efficiency of the exhaust steam higher.

[0048] Preferably, by Figure 1 and Figure 2 As shown, in this embodiment, the casing 21 is a closed box-shaped steel component, and an insulation layer 26 is fixed on the inner wall of the casing 21. It can be understood that the insulation layer 26 is used to insulate the internal space of the heat exchange chamber 211 to prevent heat from escaping. Therefore, the production water discharged from the cold source heat exchange tank 23 and entering the condenser 1 still has a low temperature.

[0049] Preferably, by Figure 1 and Figure 3As shown, this embodiment also includes a filtration mechanism 3, which includes a processing tank 31 and a porous filter plate 32. The processing tank 31 has an inlet port 311 and an outlet port 312 at both ends, and the outlet port 312 is connected to the inlet port 231. The porous filter plate 32 is installed inside the processing tank 31. With the above solution, when in use, the production water generated by the industrial equipment first enters the inlet port 311 and is filtered by the porous filter plate 32 to remove particulate impurities from the production water.

[0050] Preferably, by Figure 1 and Figure 3 As shown, this embodiment also includes: C-shaped inserts 34, a limiting plate 35, and bolts 36. The porous filter plate 32 is installed inside the processing box 31 by a pull-out method, and a disassembly and assembly port 314 for the porous filter plate 32 to pass through is processed on the outer wall of the processing box 31. Two C-shaped inserts 34 are symmetrically fixed to the inner wall of the processing box 31, and the porous filter plate 32 is located between the two C-shaped inserts 34. The limiting plate 35 is fixed to one end of the porous filter plate 32, and the bolts 36 pass through the limiting plate 35 and then through... The treatment box 31 is connected via a threaded connection. With the above scheme, the porous filter plate 32 is installed by a pull-out method. The installation position of the porous filter plate 32 is guided and positioned by two C-shaped inserts 34 to ensure the stability of the installation of the porous filter plate 32. After the porous filter plate 32 is fully inserted into the treatment box 31, the limiting plate 35 abuts against the outer wall of the treatment box 31. Tightening the bolt 36 can lock the porous filter plate 32. Unscrewing the bolt 36 can remove the porous filter plate 32 for cleaning or maintenance.

[0051] Preferably, by Figure 1 and Figure 3 As shown, this embodiment also includes: a sealing cap 33 and a rubber rod 331. A discharge port 313 is provided at the bottom of the processing box 31. The sealing cap 33 is installed at the opening of the discharge port 313 by means of threaded engagement. The rubber rod 331 is fixed inside the sealing cap 33. After the sealing cap 33 is tightened, the top end of the rubber rod 331 extends into the processing box 31. After adopting the above scheme, after the sealing cap 33 is unscrewed, the impurities in the processing box 31 are discharged from the discharge port 313, which facilitates the cleaning of the processing box 31. It can be understood that after the sealing cap 33 is tightened, the rubber rod 331 further seals the discharge port 313 to prevent production water or impurities from accumulating in the discharge port 313.

[0052] Preferably, by Figure 1 and Figure 3 As shown, in this embodiment, it also includes a handle 351, which is fixed on the limiting plate 35, and the porous filter plate 32 can be easily pulled out with the help of the handle 351.

[0053] It should be noted that the thermoelectric cooler 22 is a commercially available conventional device, and those skilled in the art can make conventional selections according to their needs. Its working principle is common knowledge known to those skilled in the art and has been fully disclosed in the prior art, so it will not be elaborated further in this article.

[0054] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0055] Components not described in detail in this article are existing technologies.

[0056] The working principle and usage process of this utility model: In the use of the recovery system of this utility model, the exhaust steam generated by the industrial equipment is introduced into the gas injection port 212 and enters the heat exchange chamber 211 from the gas injection port 212.

[0057] The production water generated by the industrial equipment first enters the inlet 311 and is filtered by the porous filter plate 32 to remove particulate impurities. Then it enters the inlet 231. Part of the production water enters the cold source heat exchange tank 23 and part enters the heat source heat exchange tank 24. When the semiconductor cooling chip 22 is energized, the temperature of the heat absorption end decreases and the temperature of the heat release end increases. Therefore, the temperature of the production water in the cold source heat exchange tank 23 decreases and becomes cold water, while the temperature of the production water in the heat source heat exchange tank 24 increases and becomes hot water. After the initial condensation of the exhaust steam in the cold source heat exchange tank 23, it enters the condenser 1. The production water at the hot end and the hot water generated during the condensation process of the exhaust steam are discharged from the manifold 4. The condensation efficiency is high, which greatly reduces the workload of the condenser 1, reduces energy consumption, and is conducive to the long-term development of the enterprise.

[0058] After the exhaust steam enters the condenser 1, it is further condensed by the condenser 1. The non-condensable gas that cannot be condensed is discharged from the exhaust port 14. The hot water generated in the condensation process is discharged after merging with the hot water discharged from the manifold 4 in the hot water outlet 13. The discharged hot water can be used in a reasonable way.

[0059] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A combined hybrid exhaust-heat recovery system, comprising a condenser (1), a cold water inlet (11) and an exhaust steam inlet (12) are arranged on the outer side of the condenser (1), and a hot water outlet (13) is arranged at the bottom end of the condenser (1) and an exhaust port (14) is arranged at the top end of the condenser (1), characterized in that, It also comprises a heat exchange mechanism (2), and the heat exchange mechanism (2) comprises: A cabinet (21), the internal space of the cabinet (21) is a heat exchange chamber (211), and the two ends of the cabinet (21) are respectively provided with a gas injection port (212) and a gas outlet (213), the gas outlet (213) is connected with the exhaust inlet (12), a drain port (214) is arranged at the bottom end of the cabinet (21), and the drain port (214) is connected with the hot water outlet (13) by means of a collecting pipe (4); A semiconductor refrigeration sheet (22) is fixed in the cabinet (21), and the top end of the semiconductor refrigeration sheet (22) is a heat absorption end, and the bottom end is a heat release end; A cold source heat exchange water tank (23) is provided with a water inlet (231) and a water outlet (232) at the two ends respectively, the water outlet (232) is connected with the cold water inlet (11), and the cold source heat exchange water tank (23) is fixedly connected with the heat absorption end of the semiconductor refrigeration sheet (22), when the production water flows through the cold source heat exchange water tank (23), the heat is absorbed by the semiconductor refrigeration sheet (22) and transferred to the heat release end; A heat source heat exchange water tank (24) is fixedly connected with the heat release end of the semiconductor refrigeration sheet (22), when the production water flows through the heat source heat exchange water tank (24), the heat generated from the heat release end of the semiconductor refrigeration sheet (22) is absorbed, a hot water outlet pipe (241) is arranged at the bottom end of the heat source heat exchange water tank (24), and the hot water outlet pipe (241) is connected with the collecting pipe (4); A shunt pipe (25) is connected with the water inlet (231) at one end and connected with the heat source heat exchange water tank (24) at the other end; An insulation layer (26) is wrapped outside the heat source heat exchange water tank (24).

2. A combined hybrid exhaust gas heat recovery system according to claim 1, characterized in that: The cold source heat exchange water tank (23) and the heat source heat exchange water tank (24) are both closed box type copper components.

3. A combined hybrid exhaust gas heat recovery system according to claim 1, characterized in that: It also comprises: Fins (233) are uniformly fixed to the outer wall of the cold source heat exchange water tank (23).

4. A combined hybrid exhaust gas heat recovery system according to claim 1, characterized in that: The cabinet (21) is a closed box type steel component, and an insulation layer (26) is fixed on the inner wall of the cabinet (21).

5. A combined hybrid exhaust gas heat recovery system according to claim 1, wherein: It also comprises a filtering mechanism (3), and the filtering mechanism (3) comprises: A treatment box (31) is provided with a water inlet interface (311) and a water outlet interface (312) at the two ends respectively, and the water outlet interface (312) is connected with the water inlet (231); A porous filter plate (32) is installed in the treatment box (31).

6. A combined hybrid exhaust gas heat recovery system according to claim 5, characterized in that: It also comprises: C-shaped bars (34) are installed in the treatment box (31) by pulling, a dismounting port (314) is processed on the outer wall of the treatment box (31) for the porous filter plate (32) to pass through, two C-shaped bars (34) are fixed to the inner wall of the treatment box (31) in a symmetrical manner, and the porous filter plate (32) is located between the two C-shaped bars (34). A limiting plate (35) is fixed to one end of the multi-hole filter plate (32); A bolt (36) is screwed through the limiting plate (35) and is connected to the processing box (31) by screwing.

7. A combined hybrid exhaust gas heat recovery system according to claim 5, wherein: Further comprising: A sealed screw cap (33) is provided with a slag discharge port (313) at the bottom end of the processing box (31), and the sealed screw cap (33) is installed on the port of the slag discharge port (313) by screwing. A rubber rod (331) is fixed in the sealed screw cap (33), and the top end of the rubber rod (331) extends into the processing box (31) after the sealed screw cap (33) is screwed.

8. A combined hybrid exhaust-heat recovery system according to claim 6, characterized in that: Further comprising: A handle (351) is fixed to the limiting plate (35).

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