Steam condensate heat efficient recovery and utilization device

Abstract

The present invention belongs to the technical field of steam condensate waste heat recovery, and relates to a device for efficiently recovering and utilizing the heat of steam condensate, which includes a heat exchange buffer tank. A steam inlet pipe and an outlet pipe are provided on the heat exchange buffer tank. The outlet pipe is connected to a filter tank, and the filter tank is connected to a water storage tank. A disc-shaped heat exchange component and an anti-blowout component corresponding to the steam inlet pipe are provided inside the heat exchange buffer tank, and a manhole is provided on the heat exchange buffer tank. The present invention recovers the heat of the steam and condensate directly discharged by the traditional steam trap, realizes the heat exchange of materials through the high-temperature condensate in the heat exchange buffer tank, and preheats the materials to be heated by the steam in the tank, thereby reducing the raw materials and time required for reheating, and further reducing the production and processing costs by the heat recovered from the steam condensate. And through secondary heat exchange by the heat exchanger, the heat energy of the condensate is fully utilized. At the same time, the condensate is filtered by the filter tank and then stored to realize the recycling of the condensate.

Description

Technical Field

[0001] The present invention relates to a device for efficiently recovering and utilizing the heat of steam condensate, belonging to the technical field of waste heat recovery of steam condensate. Background Art

[0002] Steam, as a clean and safe energy carrier, is widely used in various industries, such as power generation, petroleum, chemical industry, printing and dyeing, papermaking, light textile, brewing, rubber, pottery and other industrial fields. After steam releases its latent heat of vaporization in each steam-using equipment, it becomes saturated condensate water at nearly the same temperature and pressure. The heat contained in the condensate water can reach 20% - 30% of the total heat of the steam. Moreover, the higher the pressure and temperature of the condensate water, the more heat it has, and the greater the proportion it accounts for in the total heat of the steam. Under traditional circumstances, equipment usually directly discharges steam condensate through components such as steam traps, wasting the heat and water resources of steam and condensate.

[0003] The existing Chinese invention patent with the publication number CN115823562B, a steam condensate waste heat recovery device without a steam trap, includes a main steam pipeline, a first-stage flash tank, and a second-stage flash tank; a steam mixer is provided in the upper part of the inner cavity of the first-stage flash tank; the steam mixer has a steam diversion channel that gradually narrows in the length direction and a steam mixing chamber arranged around the outside of the steam diversion channel; the narrow end of the steam diversion channel communicates with the steam mixing chamber; the wide end of the steam diversion channel communicates with the inner cavity of the first-stage flash tank; the first-stage flash tank is provided with a mixed steam outlet, a low-pressure steam inlet, and a first condensate water outlet; the mixed steam outlet and the low-pressure steam inlet are respectively communicated with the steam mixing chamber; the main steam pipeline is connected to the mixed steam outlet; the second-stage flash tank is provided with a low-pressure steam outlet and a first condensate water inlet; the low-pressure steam outlet is connected to the low-pressure steam inlet; the first condensate water inlet is connected to the first condensate water outlet; a plurality of baffles are arranged at intervals along the length direction in the steam diversion channel; through holes are distributed on the baffles.

[0004] The existing technology has the following technical defects:

[0005] In the above technical solution, the steam is transported to the required equipment through a pipeline after the heat-exchanged condensate water undergoes secondary flash evaporation. However, the temperature of the steam will decrease during the pipeline transportation process, resulting in heat loss, and new condensate water will be generated in the pipeline. Moreover, the intake port of the steam-using equipment will have a situation where water and steam coexist, which is not conducive to the operation of the steam-using equipment. Summary of the Invention

[0006] The technical problem to be solved by the present invention is: to overcome the shortcomings of the prior art and provide a steam condensate heat efficient recovery and utilization device to achieve heat exchange of materials, use steam to preheat the materials that need to be heated, thereby reducing the raw materials and time required for reheating, and then reduce the production and processing costs through the heat recovered by steam condensate, and perform secondary heat exchange through a heat exchanger to fully utilize the thermal energy of the condensate, and at the same time, filter the condensate through a filter box and store it to achieve the recovery and utilization of the condensate.

[0007] The steam condensate heat efficient recovery and utilization device described in the present invention comprises a heat exchange buffer tank, which is provided with a steam inlet pipe and an outlet pipe, the outlet pipe is connected to a filter box, the filter box is connected to a water storage tank, a disc-type heat exchange component and a blowout prevention component corresponding to the steam inlet pipe are arranged in the heat exchange buffer tank, and a manhole is arranged on the heat exchange buffer tank.

[0008] The disc-type heat exchange assembly comprises a feed pipe and a discharge pipe, and the feed pipe and the discharge pipe are connected via a plurality of heat exchange discs, and the heat exchange contact area is increased by the heat exchange discs, thereby improving the heat exchange efficiency.

[0009] The heat exchange disk comprises a feed port connected to a feed pipe and a discharge port connected to a discharge pipe, and the feed port and the discharge port are connected via a spiral heat exchange tube. Since the raw water contains certain calcium and magnesium ions, scaling is easily generated during the heating and cooling process, while the overall structure of an ordinary heat exchanger is relatively large and the contact surface is relatively flat, which makes it easy for scale to adhere and accumulate, thereby reducing the heat exchange effect. The present invention performs heat exchange through multiple heat exchange disks, reduces a large area of flat surface, thereby avoiding the accumulation of scale, and further ensuring its heat exchange efficiency and service life.

[0010] At least four spiral heat exchange tubes are provided, and the four spiral heat exchange tubes are evenly connected to the feed port and the discharge port. The multiple coils and multiple spiral heat exchange tubes can not only increase the heat exchange area, but also ensure the exchange flow rate, thereby improving the heat exchange efficiency. The spiral heat exchange tube can produce a certain wave shaking due to its overall shape characteristics when the internal material flow and external condensate fluctuate, thereby increasing the difficulty of scale adhesion and ensuring its heat exchange efficiency and service life.

[0011] The anti-blowout assembly is a anti-blowout baffle, which is fixedly connected to the inner wall of the heat exchange buffer tank. The anti-blowout baffle corresponds to the position of the steam inlet pipe. Since there is a certain pressure in the pipe, the steam and condensate will be ejected. The ejected condensate can be quickly collected through the anti-blowout baffle.

[0012] The anti-spray baffle is provided with a plurality of through holes.

[0013] A preheating pipeline is provided at the inner top of the heat exchange buffer tank. Through the preheating pipeline, the material to be heated can be preheated by using the steam heat in the heat exchange buffer tank when passing through, thereby reducing the heat and time required for processing. Preheating with steam heat reduces the energy and time required for material heating, thus reducing energy consumption.

[0014] The water outlet pipe of the heat exchange buffer tank is connected to a heat exchanger.

[0015] A pressure stabilizing water tank is connected between the heat exchange buffer tank and the heat exchanger.

[0016] A water pump is connected between the heat exchanger and the pressure stabilizing water tank, and a water pump is connected between the filter tank and the water storage tank.

[0017] A water tank support is provided on the pressure stabilizing water tank. The bottom of the pressure stabilizing water tank is inclined. A sewage outlet is provided at the lowest end of the bottom of the pressure stabilizing water tank. The bottom height of the end connected to the water outlet pipe of the heat exchange buffer tank is lower than the bottom height of the end connected to the heat exchanger.

[0018] A drain outlet and a dirt baffle are further provided at the inner bottom of the pressure stabilizing water tank. The dirt baffle is arranged between the drain outlet and the sewage outlet. When the condensed water enters the pressure stabilizing water tank from the heat exchange buffer tank, the impurities in the water precipitate near the sewage outlet through sedimentation and static flow. The dirt baffle can prevent the water flow from taking away the dirt, and it can be discharged through the sewage outlet.

[0019] A wave prevention baffle is further provided in the middle of the pressure stabilizing water tank to avoid large fluctuations in the water flow entering the tank.

[0020] A filter screen support is provided in the filter tank. A placement opening adapted to the filter screen support is provided on the filter tank. The filter screen support can be taken out, placed and replaced with a filter screen thereon through the placement opening.

[0021] A slideway adapted to the filter screen support is provided in the filter tank. The filter screen support is slidably connected to the slideway. The placement opening is arranged at the corresponding position of the slideway near the water inlet of the filter tank. An extraction opening corresponding to the other end of the slideway is provided on the filter tank. After placing the filter screen support with the filter screen installed in the placement opening, resetting and fixing the cover plate at the placement opening, when the water flow enters the filter tank and passes through the filter screen, the filter screen will filter the water flow. And when the filter screen blocks a large amount of impurities and will be blocked, at this time the water flow through volume will decrease, while the water inlet volume of the filter tank remains the same, which will cause the water pressure at the place to be filtered to increase, thereby pushing the filter screen support to move on the slideway. When the filter screen support moves to the end, the filter screen needs to be replaced. At this time, open the extraction opening, take out the filter screen support and replace it with a new filter screen, and then it can be reinstalled through the placement opening and put back into use.

[0022] The described filter box is provided with a display screen. A position sensor is provided on the slideway near the water outlet in the filter box, and the position sensor is connected to the display screen. When the filter screen support moves to the end of the slideway, the signal is transmitted to the display screen through the position sensor, and a prompt for replacing the filter screen is given through the display screen.

[0023] There are gaps between both ends of the described filter screen support and the inner wall of the side plate of the filter box. At this time, the filter sponge can be installed on both sides of the filter screen support, so that the filter sponge is squeezed between the filter screen support and the filter box, thereby enabling the cleaning of the inner wall of the filter box during filtration.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] The present invention recovers the heat of the traditional steam trap that directly discharges steam and condensate, realizes heat exchange of materials through the high-temperature condensate in the heat exchange buffer tank, and preheats the materials to be heated by the steam in the tank, thereby reducing the raw materials and time required for reheating. Furthermore, the production and processing costs are reduced by the heat recovered from the steam condensate, and secondary heat exchange is carried out through the heat exchanger to make full use of the heat energy of the condensate. At the same time, the condensate is filtered and stored through the filter box to realize the recycling of the condensate. No steam trap is used in the whole device, and the recovery rates of condensate and steam are high, and the energy-saving effect is remarkable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the front view of the present invention,

[0027] Figure 2 is the rear view of the present invention,

[0028] Figure 3 is the structural schematic diagram of the heat exchange buffer tank in the present invention,

[0029] Figure 4 is the internal structural schematic diagram of the heat exchange buffer tank in the present invention,

[0030] Figure 5 is the structural schematic diagram of the disc-shaped heat exchange component in the present invention,

[0031] Figure 6 is the structural schematic diagram of the heat exchange disc in the present invention,

[0032] Figure 7 is the structural schematic diagram of the pressure stabilizing water tank in the present invention,

[0033] Figure 8 is the front view of the pressure stabilizing water tank in the present invention,

[0034] Figure 9 is the internal structural schematic diagram of the pressure stabilizing water tank in the present invention,

[0035] Figure 10 It is a schematic structural diagram of the filtration tank in the present invention,

[0036] Figure 11 and it is a schematic internal structure diagram of the filtration tank in the present invention.

[0037] In the figure: 1, heat exchange buffer tank; 2, manhole; 3, outlet pipe; 4, pressure stabilizing water tank; 5, filtration tank; 6, heat exchanger; 7, water storage tank; 8, steam inlet pipe; 9, preheating pipeline; 10, anti-spray baffle; 11, feed pipe; 12, heat exchange plate; 13, discharge pipe; 14, feed inlet; 15, discharge outlet; 16, spiral heat exchange pipe; 17, water tank support; 18, sewage outlet; 19, dirt retaining plate; 20, drain outlet; 21, anti-wave plate; 22, extraction port; 23, placement port; 24, display screen; 25, filter screen support; 26, slideway. Detailed implementation manners

[0038] Example 1

[0039] As Figures 1 to 2 shown, the steam condensate heat efficient recovery and utilization device of the present invention includes a heat exchange buffer tank 1. A steam inlet pipe 8 and an outlet pipe 3 are provided on the heat exchange buffer tank 1. The outlet pipe 3 is connected to a filtration tank 5, and the filtration tank 5 is connected to a water storage tank 7. A disc-shaped heat exchange component and an anti-spray component corresponding to the steam inlet pipe 8 are provided in the heat exchange buffer tank 1. A manhole 2 is provided on the heat exchange buffer tank 1.

[0040] Working process or working principle:

[0041] During use, the steam condensate is directly introduced into the heat exchange buffer tank 1 through the steam inlet pipe 8. Since there is both steam and condensate at the outlet, the outlet pressure is relatively large, resulting in a spraying situation. The anti-spray component can avoid spraying, enabling the condensate to be collected and stored in a timely manner. When the condensate accumulates at the bottom of the heat exchange buffer tank 1, the heat of the condensate is recovered and utilized through the disc-shaped heat exchange component. However, the temperature of the condensate after one heat exchange is still very high, and it is subjected to secondary heat exchange through the heat exchanger 6 to fully utilize the heat energy of the condensate. The cooled condensate is an excellent water replenishment raw material. Therefore, after being filtered by the filtration tank 5 to remove impurities, it enters the water storage tank 7 for storage and recycling for secondary use.

[0042] Example 2

[0043] As Figures 1 to 6As shown, different from Embodiment 1, in this embodiment, the disc-shaped heat exchange component includes a feed pipe 11 and a discharge pipe 13. The feed pipe 11 and the discharge pipe 13 are connected by a number of heat exchange discs 12. The heat exchange area is increased through the heat exchange discs, thereby improving the heat exchange efficiency. The heat exchange disc 12 includes a feed port 14 connected to the feed pipe 11 and a discharge port 15 connected to the discharge pipe 13. The feed port 14 and the discharge port 15 are connected and communicated through a spiral heat exchange pipe 16. At least four spiral heat exchange pipes 16 are provided. The four spiral heat exchange pipes 16 are evenly connected to the feed port 14 and the discharge port 15. Through multiple discs and multiple spiral heat exchange pipes 16, both the heat exchange area can be increased and the flow rate can be ensured, thereby improving the heat exchange efficiency. The anti-spray component is an anti-spray baffle 10. The anti-spray baffle 10 is fixedly connected to the inner wall of the heat exchange buffer tank 1. The anti-spray baffle 10 corresponds to the position of the steam inlet pipe 8. Since there is a certain pressure in the pipe, the steam and condensate coming out will be ejected. The ejected condensate can be quickly collected through the anti-spray baffle 10. A number of through holes are provided on the anti-spray baffle 10. A preheating pipe 9 is provided at the top inside the heat exchange buffer tank 1. Through the preheating pipe 9, the material to be heated can be preheated by using the steam heat in the heat exchange buffer tank 1 when passing through, thereby reducing the heat and time required for processing. The energy and time required for heating the material are reduced by using the steam heat for preheating, thereby reducing energy consumption. The water outlet pipe 3 of the heat exchange buffer tank 1 is connected to a heat exchanger 6. A pressure stabilizing water tank 4 is connected between the heat exchange buffer tank 1 and the heat exchanger 6. A water pump is connected between the heat exchanger 6 and the pressure stabilizing water tank 4. A water pump is connected between the filter tank 5 and the water storage tank 7.

[0044] Working process or principle:

[0045] During use, the steam condensate is directly introduced into the heat exchange buffer tank 1 through the steam inlet pipe 8. Since there is both steam and condensate at the outlet, the outlet pressure is relatively large, resulting in a spraying situation. The anti-spray component can avoid spraying and enable the condensate to be timely converged and stored. When the condensate accumulates at the bottom of the heat exchange buffer tank 1, the heat of the condensate is recovered and utilized through the disc-shaped heat exchange component. However, the temperature of the condensate after one heat exchange is still very high. The heat exchanger 6 is used for secondary heat exchange to fully utilize the heat energy of the condensate. The cooled condensate is an excellent water replenishment raw material. Therefore, after filtering out the impurities through the filter tank 5, it enters the water storage tank 7 for storage and recycling for secondary use.

[0046] Embodiment 3

[0047] As Figures 7 to 9As shown, different from other embodiments, in this embodiment, a water tank support 17 is provided on the voltage stabilizing water tank 4. The bottom of the voltage stabilizing water tank 4 is inclined. A sewage outlet 18 is provided at the bottom of the lowest end of the voltage stabilizing water tank 4. The bottom height of the end connected to the water outlet pipe 3 of the heat exchange buffer tank 1 is lower than the bottom height of the end connected to the heat exchanger 6. A drain outlet 20 and a dirt retaining plate 19 are further provided at the inner bottom of the voltage stabilizing water tank 4. The dirt retaining plate 19 is arranged between the drain outlet 20 and the sewage outlet 18. When the condensed water enters the voltage stabilizing water tank 4 from the heat exchange buffer tank 1, the impurities in the water are precipitated near the sewage outlet 18 through sedimentation and static flow. The dirt retaining plate 19 can prevent the flowing water from taking away the dirt, and it can be discharged through the sewage outlet 18. A wave preventing plate 21 is further provided in the middle of the voltage stabilizing water tank 4 to avoid large shaking of the water flow entering the tank.

[0048] Working process or working principle:

[0049] When the condensed water after heat exchange flows from the heat exchange buffer tank 1 into the voltage stabilizing water tank 4, the water flow first enters the space formed between the dirt retaining plate 19 and the inner wall of the voltage stabilizing water tank 4 for stable precipitation. The impurities in the water are precipitated near the sewage outlet 18 through sedimentation and static flow. The dirt retaining plate 19 can prevent the flowing water from taking away the dirt, and it can be discharged through the sewage outlet 18. When the inflowing water flow is large, it is easy to generate waves in the tank. The wave preventing plate 21 can prevent the water surface in the tank from churning and ensure the stability during water outlet.

[0050] Embodiment 4

[0051] As Figures 10 to 11As shown, different from other embodiments, a filter screen support 25 is provided in the filter box 5 in this embodiment. A placement opening 23 adapted to the filter screen support 25 is provided on the filter box 5. The filter screen support 25 can be taken out, placed, and the filter screen on it can be replaced through the placement opening 23. A slideway 26 adapted to the filter screen support 25 is provided in the filter box 5. The filter screen support 25 is slidably connected to the slideway 26. The placement opening 23 is arranged at the corresponding position of the slideway 26 near one end of the water inlet of the filter box 5. An extraction opening 22 corresponding to the other end of the slideway 26 is provided on the filter box 5. After placing the filter screen support 25 with the filter screen installed into the placement opening 23 and resetting and fixing the cover plate at the placement opening 23, when water flows into the filter box 5 and passes through the filter screen, the filter screen will filter the water flow. And when the filter screen blocks a large amount of impurities, it will become blocked. At this time, the water flow through rate will decrease, while the water inflow of the filter box 5 remains the same, which will cause the water pressure at the place to be filtered to increase, thereby pushing the filter screen support 25 to move on the slideway 26. When the filter screen support 25 moves to the end, the filter screen needs to be replaced. At this time, open the extraction opening 22 to take out the filter screen support 25 and replace it with a new filter screen, and then it can be reinstalled through the placement opening 23 and put back into use. A display screen 24 is provided on the filter box 5. A position sensor is provided on the slideway 26 near the water outlet in the filter box 5. The position sensor is connected to the display screen 24. When the filter screen support 25 moves to the end of the slideway 26, the signal is transmitted to the display screen 24 through the position sensor, and the display screen 24 gives a prompt to replace the filter screen.

[0052] Working process or principle:

[0053] During the flow of condensate water through the equipment and pipelines, impurities will inevitably be generated, as well as calcium and magnesium ions contained in the raw water itself, which will form solid scale through boiling and cooling condensation. When in use, after assembling the filter screen support 25 with the filter screen into the slideway 26 in the filter box 5 through the placement opening 23, seal and reset the cover plate of the placement opening 23. When the condensate water passes through the filter box 5, when the water flow enters the filter box 5 and passes through the filter screen, the filter screen will filter the water flow. And when the filter screen blocks a large amount of impurities, it will become blocked. At this time, the water flow through rate will decrease, while the water inflow of the filter box 5 remains the same, which will cause the water pressure at the place to be filtered to increase, thereby pushing the filter screen support 25 to move on the slideway 26. When the filter screen support 25 moves to the end of the slideway 26, the signal is transmitted to the display screen 24 through the position sensor, and the display screen 24 gives a prompt to replace the filter screen.

[0054] The present invention recovers the heat of the steam and condensate directly discharged by the traditional steam trap, realizes the heat exchange of materials through the high-temperature condensate in the heat exchange buffer tank, and preheats the materials to be heated by the steam in the tank, thereby reducing the raw materials and time consumed during heating, and further reducing the production and processing costs by the heat recovered from the steam condensate. Moreover, through the secondary heat exchange by the heat exchanger, the heat energy of the condensate is fully utilized. At the same time, after the condensate is filtered by the filter box and stored, the recycling of the condensate is realized. The steam trap is not used in the whole device, and the recovery rates of the condensate and steam are high, and the energy-saving effect is remarkable.

[0055] In the present invention, the description of the direction and relative position relationship of the structure, such as the description of front, back, left, right, up and down, does not constitute a limitation to the present invention, but is only for convenience of description.

Claims

1. An apparatus for efficiently recovering and utilizing the heat of steam condensate, characterized in that, It includes a heat exchange buffer tank (1). A steam inlet pipe (8) and an outlet pipe (3) are provided on the heat exchange buffer tank (1). The outlet pipe (3) is connected to a filter tank (5), and the filter tank (5) is connected to a water storage tank (7). A disc-shaped heat exchange component and an anti-spray component corresponding to the steam inlet pipe (8) are provided inside the heat exchange buffer tank (1). A manhole (2) is provided on the heat exchange buffer tank (1); The described disc-shaped heat exchange component includes a feed pipe (11) and a discharge pipe (13). The feed pipe (11) and the discharge pipe (13) are connected by a number of heat exchange discs (12). The heat exchange discs (12) include a feed inlet (14) connected to the feed pipe (11) and a discharge outlet (15) connected to the discharge pipe (13). The feed inlet (14) and the discharge outlet (15) are connected and communicated by a spiral heat exchange pipe (16). At least four spiral heat exchange pipes (16) are provided, and the four spiral heat exchange pipes (16) are evenly connected to the feed inlet (14) and the discharge outlet (15); The outlet pipe (3) of the heat exchange buffer tank (1) is connected to a heat exchanger (6). A pressure stabilizing water tank (4) is connected between the heat exchange buffer tank (1) and the heat exchanger (6). A water tank support (17) is provided on the pressure stabilizing water tank (4). The bottom of the pressure stabilizing water tank (4) is an inclined plane. A sewage outlet (18) is provided at the lowest end of the bottom of the pressure stabilizing water tank (4). The bottom height of the end connected to the outlet pipe (3) of the heat exchange buffer tank (1) is lower than the bottom height of the end connected to the heat exchanger (6); A drain port (20) and a dirt retaining plate (19) are further provided at the inner bottom of the pressure stabilizing water tank (4). The dirt retaining plate (19) is arranged between the drain port (20) and the sewage outlet (18). A wave preventing plate (21) is further provided in the middle of the pressure stabilizing water tank (4); It also includes a filter tank (5). A filter screen support (25) is provided inside the filter tank (5). A placement opening (23) adapted to the filter screen support (25) is provided on the filter tank (5). The filter screen support (25) can be taken out, placed and replaced with a filter screen thereon through the placement opening (23); A slideway (26) adapted to the filter screen support (25) is provided inside the filter tank (5). The filter screen support (25) is slidably connected to the slideway (26). The placement opening (23) is arranged at the corresponding position of the slideway at one end close to the water inlet of the filter tank (5). An extraction opening (22) corresponding to the other end of the slideway (26) is provided on the filter tank (5). When the filter screen support (25) loaded with a filter screen is placed into the placement opening (23) and the cover plate at the placement opening (23) is reset and fixed, when water flows into the filter tank (5) and passes through the filter screen, the filter screen will filter the water flow. And when the filter screen blocks a large amount of impurities and will be blocked, at this time the water flow passing amount will decrease, while the water inflow of the filter tank remains the same, which will cause the water pressure at the place to be filtered to increase, thereby pushing the filter screen support to move on the slideway. When the filter screen support moves to the end, the filter screen needs to be replaced. At this time, open the extraction opening to take out the filter screen support and replace it with a new filter screen, and then it can be reinstalled through the placement opening and put back into use; A display screen (24) is provided on the described filter box (5). A position sensor is provided on the slideway near the water outlet in the filter box (5). The position sensor is connected to the display screen. When the filter screen support moves to the end of the slideway, the signal is transmitted to the display screen through the position sensor, and a prompt for replacing the filter screen is given through the display screen. A gap is left between the two ends of the filter screen support and the inner wall of the side plate of the filter box. At this time, the filter sponge can be installed on both sides of the filter screen support, so that the filter sponge is squeezed between the filter screen support and the filter box, thereby realizing the cleaning of the inner wall of the filter box during filtration.

2. The steam condensate heat efficient recovery and utilization device according to claim 1, characterized in that The anti-spray component is an anti-spray baffle (10). The anti-spray baffle (10) is fixedly connected to the inner wall of the heat exchange buffer tank (1). The anti-spray baffle (10) corresponds to the position of the steam inlet pipe (8).

3. The steam condensate heat efficient recovery and utilization device according to claim 2, wherein A number of through holes are provided on the anti-spray baffle (10).

4. The steam condensate heat efficient recovery and utilization device according to claim 3, wherein, A preheating pipe (9) is provided at the top inside the heat exchange buffer tank (1).

5. The steam condensate heat efficient recovery and utilization device according to any one of claims 4, characterized in that A water pump is connected between the heat exchanger (6) and the pressure stabilizing water tank (4), and a water pump is connected between the filter box (5) and the water storage tank (7).

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