Efficient and energy-saving low-temperature evaporator

Abstract

The utility model discloses an efficient and energy-saving low-temperature evaporator, which belongs to the technical field of low-temperature evaporation and comprises a frame, a pretreatment device, a heat collection device, a gas-liquid separation device and a low-temperature evaporation device are mounted on the frame and sequentially connected through pipelines, and the heat collection device is mounted on the frame. The heat collection device is connected with the pretreatment device through a pipeline; the heat collection device comprises a condensation assembly and a heat absorption assembly, the condensation assembly is connected with the frame and the heat absorption assembly, the condensation assembly is connected with the low-temperature evaporation device through a pipeline, and the heat absorption assembly is connected with the pretreatment device through a pipeline. According to the mode, by means of the condensation assembly and the heat absorption assembly, when water vapor is condensed into condensate water, redundant heat can be collected for secondary utilization, the heat collected by the heat absorption assembly is transferred into waste water, the gas-liquid separation effect of the heated waste water is good, and energy needed during low-temperature evaporation is reduced; and equipment with different sizes and capacities can be replaced to adapt to different wastewater treatment capacities.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature evaporation, in particular to a high-efficiency and energy-saving low-temperature evaporator. Background Art

[0002] In industrial production, a lot of wastewater and sewage will be generated. In order to save energy and protect the environment, the wastewater needs to be treated. Currently, vacuum distillation concentration technology, air energy heat pump heating technology and compressor refrigeration technology are commonly used technologies in industry.

[0003] For example, Chinese patent CN116062822A discloses a low-temperature evaporator, including a filter assembly, an evaporator box, a condenser, a hot air blower, a vacuum pump, a heater, an anti-blocking member, a driving member, an air pipe, a first transmission assembly, and a second transmission assembly. The hot air blower and the vacuum pump are respectively fixed on the left and right sides of the top of the evaporator box, the center of the top of the evaporator box is rotatably connected with the heater, the air outlet end of the hot air blower is connected with the air inlet end of the heater, a part of the heater extends into the interior of the evaporator box, the anti-blocking member is rotatably connected to the filter assembly, a part of the anti-blocking member extends into the interior of the filter assembly, one end of the air pipe is connected with the air outlet end of the heater, the other end of the air pipe extends into the anti-blocking member, a driving member is fixed on the top of the filter assembly, the driving member is transmission-connected to the anti-blocking member through the first transmission assembly, and the driving member is transmission-connected to the heater through the second transmission assembly.

[0004] However, when the low-temperature evaporator is used, since many wastewaters contain a large amount of impurities and bubbles, the direct evaporation treatment has a poor effect and low efficiency; when heating, there is no preheating treatment, and direct heating also consumes more energy.

[0005] Based on this, the utility model designs a high-efficiency and energy-saving low-temperature evaporator to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a high-efficiency and energy-saving low-temperature evaporator.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A high-efficiency and energy-saving low-temperature evaporator, comprising a frame,

[0009] The frame is equipped with a pretreatment device, a heat collection device, a gas-liquid separation device and a low-temperature evaporation device, the pretreatment device, the gas-liquid separation device, the low-temperature evaporation device and the heat collection device are connected in sequence through pipelines, and the heat collection device is connected to the pretreatment device through pipelines;

[0010] The heat collection device includes a condensation component and a heat absorption component. The condensation component is connected to the frame and the heat absorption component, and is connected to the low-temperature evaporation device through a pipeline. The heat absorption component is connected to the pretreatment device through a pipeline.

[0011] Furthermore, the frame includes a base and supports. There are two bases and supports. The supports are fixedly installed at the upper end of the base. The left support is connected to the gas-liquid separation device and the low-temperature evaporation device, and the right support is connected to the pretreatment device and the heat collection device.

[0012] Furthermore, the pretreatment device includes a filtering component and a heating component. The filtering component is connected to the heating component, the right support, and the gas-liquid separation device, and the heating component is connected to the heat absorption component.

[0013] Furthermore, the filtering component includes a pretreatment bin, a filter screen, and a partition plate. The pretreatment bin is fixedly installed at the rear end of the right support. The upper end of the filter screen is detachably connected to the upper end of the pretreatment bin, and the lower end of the filter screen is detachably connected to the upper end of the partition plate. The partition plate is fixedly installed inside the pretreatment bin, and a through hole corresponding to the bottom of the filter screen is opened in the middle of the partition plate. An inlet water port is opened at the upper end of the pretreatment bin, and the inlet water port is located outside the filter screen. The lower end of the pretreatment bin is connected to the heating component.

[0014] Furthermore, the heating component includes a heat exchange tube and a heat conducting plate. The heat exchange tube is fixedly installed at the inner bottom of the pretreatment bin. One end of the heat exchange tube passes through the pretreatment bin and is connected to the heat absorption component, and the other end of the heat exchange tube passes through the bottom of the pretreatment bin.

[0015] Furthermore, the condensation component includes a condensation bin, a condensation tube, and a condensed water outlet pipe. The condensation bin is fixedly installed at the front end of the right support. The upper end of the condensation tube is fixedly connected to the top of the condensation bin. The condensation tube and the condensation bin are concentrically arranged. The condensed water outlet pipe is fixedly installed at the bottom of the condensation bin. The condensation bin is connected to the heat absorption component and the low-temperature evaporation device.

[0016] Furthermore, the heat absorption component includes a water inlet pipe, a heat absorption pipe, and a water outlet pipe. The water inlet pipe is fixedly installed at the bottom of the condensation bin. The water inlet pipe is fixedly connected to one end of the heat absorption pipe. The heat absorption pipe spirally ascends along the condensation tube. The other end of the heat absorption pipe is fixedly connected to the water outlet pipe. The water outlet pipe is fixedly installed at the top of the condensation bin. A water pipe is fixedly connected between the other end of the water outlet pipe and one end of the heat exchange tube.

[0017] Further, the gas-liquid separation device includes a gas-liquid separator, a first water pump, a fixing frame and a water suction pipe. The gas-liquid separator is fixedly installed at the rear end of the left bracket. The first water pump is fixedly installed at the upper end of the gas-liquid separator. The fixing frame is fixedly installed on the right side of the upper end of the gas-liquid separator. One end of the water suction pipe passes through the fixing frame and is fixedly connected to the fixing frame. One end of the water suction pipe is fixedly connected to the input end of the first water pump. The other end of the water suction pipe is connected to the outer wall of the pretreatment bin in a plugged manner, and the plugged position is between the isolation plate and the heat conduction plate. The gas-liquid separator is connected to the low-temperature evaporation device. The gas-liquid separator is the main part of the gas-liquid separator machine and is an existing technology.

[0018] Further, the low-temperature evaporation device includes a low-temperature evaporator, a second water pump and an exhaust pipe. The low-temperature evaporator is fixedly installed at the front end of the left bracket. The second water pump is fixedly installed at the upper end of the low-temperature evaporator. A water pipe is fixedly connected between the input end of the second water pump and the water outlet of the gas-liquid separator. One end of the exhaust pipe is fixedly connected to the right side wall of the low-temperature evaporator. The other end of the exhaust pipe is connected to the outer wall of the condensation bin in a plugged manner. The low-temperature evaporator is the main part of the low-temperature evaporator machine and is an existing technology.

[0019] Beneficial effects

[0020] With the condensation component and the heat absorption component of the present utility model, while condensing water vapor into condensed water, the excess heat can be collected and reused, achieving the effect of energy conservation.

[0021] With the filtration component and the heating component of the present utility model, after filtering the wastewater, the heat collected by the heat absorption component can be transferred to the wastewater. The gas-liquid separation effect of the heated wastewater is better and the efficiency is higher, and the energy required for low-temperature evaporation is also reduced. By separating the gas-liquid separation device and the low-temperature evaporation device from the pretreatment device and the heat collection device, gas-liquid separation devices and low-temperature evaporation devices with different sizes and capacities can be replaced to adapt to different wastewater treatment volumes. Description of the drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 Three-dimensional view of the main structure of an efficient and energy-saving low-temperature evaporator of the present utility model Figure 1 ;

[0024] Figure 2 Front view of the structure of an efficient and energy-saving low-temperature evaporator of the present utility model;

[0025] Figure 3 This is a top view of the structure of an energy-efficient low-temperature evaporator of the present utility model;

[0026] Figure 4 This is a three-dimensional view of the main structure of an energy-efficient low-temperature evaporator of the present utility model Figure 2 ;

[0027] Figure 5 is a sectional view along the Figure 2 A-A direction;

[0028] Figure 6 is a sectional view along the Figure 3 B-B direction.

[0029] The reference numerals in the figure respectively represent:

[0030] 1. Frame; 11. Base; 12. Bracket; 2. Pretreatment device; 21. Filter assembly; 211. Pretreatment bin; 212. Filter screen; 213. Partition board; 22. Heating assembly; 221. Heat exchange tube; 222. Heat conducting plate; 3. Heat collection device; 31. Condensation assembly; 311. Condensation bin; 312. Condensation tube; 313. Condensate outlet pipe; 32. Heat absorption assembly; 321. Water inlet pipe; 322. Heat absorption tube; 323. Water outlet pipe; 4. Gas-liquid separation device; 41. Gas-liquid separator; 42. First water pump; 43. Fixing frame; 44. Water suction pipe; 5. Low-temperature evaporation device; 51. Low-temperature evaporator; 52. Second water pump; 53. Exhaust pipe. Specific embodiments

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present utility model fall within the scope of protection of the present utility model.

[0032] The present utility model will be further described below with reference to the embodiments.

[0033] In some embodiments, please refer to the accompanying drawings of the specification Figures 1-6 , an energy-efficient low-temperature evaporator includes a frame 1,

[0034] A pretreatment device 2, a heat collection device 3, a gas-liquid separation device 4, and a low-temperature evaporation device 5 are installed on the frame 1. The pretreatment device 2, the gas-liquid separation device 4, the low-temperature evaporation device 5, and the heat collection device 3 are connected in sequence through pipelines, and the heat collection device 3 is connected to the pretreatment device 2 through a pipeline.

[0035] The heat collection device 3 includes a condensation component 31 and an endothermic component 32. The condensation component 31 is connected to the frame 1 and the endothermic component 32. The condensation component 31 is connected to the low-temperature evaporation device 5 through a pipeline, and the endothermic component 32 is connected to the pretreatment device 2 through a pipeline.

[0036] In an embodiment of the present utility model, the water vapor evaporated in the low-temperature evaporation device 5 is led to the condensation component 31. While the water vapor condenses, the heat is absorbed by the water in the endothermic component 32 and the hot water is led to the pretreatment device 2 for preheating the pretreated wastewater.

[0037] In an embodiment of the present utility model, the pretreated wastewater has a better separation effect in the gas-liquid separation device 4 and has a certain temperature when entering the low-temperature evaporation device 5, which can reduce the energy consumption of the low-temperature evaporation device 5.

[0038] In some embodiments, as Figures 1-6 shown, as a preferred embodiment of the present utility model, the frame 1 includes a base 11 and supports 12. There are two base 11 and supports 12. The supports 12 are fixedly installed at the upper end of the base 11. The left support 12 is connected to the gas-liquid separation device 4 and the low-temperature evaporation device 5, and the right support 12 is connected to the pretreatment device 2 and the heat collection device 3.

[0039] The pretreatment device 2 includes a filtering component 21 and a heating component 22. The filtering component 21 is connected to the heating component 22, the right support 12, and the gas-liquid separation device 4, and the heating component 22 is connected to the endothermic component 32.

[0040] The filtering component 21 includes a pretreatment bin 211, a filter screen 212, and a partition plate 213. The pretreatment bin 211 is fixedly installed at the rear end of the right support 12. The upper end of the filter screen 212 is detachably connected to the upper end of the pretreatment bin 211, and the lower end of the filter screen 212 is detachably connected to the upper end of the partition plate 213. The partition plate 213 is fixedly installed inside the pretreatment bin 211. A through hole corresponding to the bottom of the filter screen 212 is opened in the middle of the partition plate 213. An inlet is opened at the upper end of the pretreatment bin 211, and the inlet is located outside the filter screen 212. The lower end of the pretreatment bin 211 is connected to the heating component 22.

[0041] The heating component 22 includes a heat exchange tube 221 and a heat conducting plate 222. The heat exchange tube 221 is fixedly installed at the inner bottom of the pretreatment bin 211. One end of the heat exchange tube 221 passes through the pretreatment bin 211 and is connected to the heat absorption component 32, and the other end of the heat exchange tube 221 passes through the bottom of the pretreatment bin 211.

[0042] The condensation component 31 includes a condensation bin 311, a condensation tube 312, and a condensed water outlet pipe 313. The condensation bin 311 is fixedly installed at the front end of the right bracket 12. The upper end of the condensation tube 312 is fixedly connected to the top of the condensation bin 311. The condensation tube 312 and the condensation bin 311 are concentrically arranged. The condensed water outlet pipe 313 is fixedly installed at the bottom of the condensation bin 311. The condensation bin 311 is connected to the heat absorption component 32 and the low-temperature evaporation device 5.

[0043] The heat absorption component 32 includes a water inlet pipe 321, a heat absorption tube 322, and a water outlet pipe 323. The water inlet pipe 321 is fixedly installed at the bottom of the condensation bin 311. The water inlet pipe 321 is fixedly connected to one end of the heat absorption tube 322. The heat absorption tube 322 spirally ascends along the condensation tube 312. The other end of the heat absorption tube 322 is fixedly connected to the water outlet pipe 323. The water outlet pipe 323 is fixedly installed at the top of the condensation bin 311. A water pipe is fixedly connected between the water outlet pipe 323 and one end of the heat exchange tube 221.

[0044] The gas-liquid separation device 4 includes a gas-liquid separator 41, a first water pump 42, a fixing frame 43, and a water extraction pipe 44. The gas-liquid separator 41 is fixedly installed at the rear end of the left bracket 12. The first water pump 42 is fixedly installed at the upper end of the gas-liquid separator 41. The fixing frame 43 is fixedly installed on the right side of the upper end of the gas-liquid separator 41. One end of the water extraction pipe 44 passes through the fixing frame 43 and is fixedly connected to the fixing frame 43. One end of the water extraction pipe 44 is fixedly connected to the input end of the first water pump 42. The other end of the water extraction pipe 44 is connected to the outer wall of the pretreatment bin 211 in a plugged manner, and the plugged position is between the isolation plate 213 and the heat conducting plate 222. The gas-liquid separator 41 is connected to the low-temperature evaporation device 5. The gas-liquid separator 41 is the main part of the gas-liquid separator and is a prior art.

[0045] The low-temperature evaporation device 5 includes a low-temperature evaporator 51, a second water pump 52, and an exhaust pipe 53. The low-temperature evaporator 51 is fixedly installed at the front end of the left bracket 12. The second water pump 52 is fixedly installed at the upper end of the low-temperature evaporator 51. A water pipe is fixedly connected between the input end of the second water pump 52 and the water outlet of the gas-liquid separator 41. One end of the exhaust pipe 53 is fixedly connected to the right side wall of the low-temperature evaporator 51. The other end of the exhaust pipe 53 is connected to the outer wall of the condensation bin 311 in a plugged manner. The low-temperature evaporator 51 is the main part of the low-temperature evaporator and is a prior art.

[0046] In the embodiment of the present utility model, wastewater is conveyed from the water inlet of the pretreatment bin 211 to the periphery of the filter screen 212. The wastewater passes through the filtration of the filter screen 212 and enters the lower layer of the partition plate 213. The first water pump 42 pumps the filtered wastewater in the pretreatment bin 211 into the gas-liquid separator 41 through the water suction pipe 44. The wastewater after gas-liquid separation treatment is pumped into the low-temperature evaporator 51 by the second water pump 52. The clear water part in the wastewater is evaporated into water vapor at low temperature and leads to the condensation bin 311 through the exhaust pipe 53. Cold water is conveyed from the water inlet pipe 321 to the heat absorption pipe 322. The water vapor touches the heat absorption pipe 322 and liquefies into condensed water, which accumulates at the bottom of the condensation bin 311 and is discharged through the condensed water outlet pipe 313. The cold water in the heat absorption pipe 322 is heated into hot water under the action of the steam. The hot water enters the heat exchange pipe 221 through the water outlet pipe 323. The hot water in the heat exchange pipe 221 transfers heat to the filtered wastewater in the subsequent pretreatment bin 211 through the heat conduction plate 222, so as to heat the wastewater. According to different amounts of wastewater to be treated, the exhaust pipe 53 is separated from the condensation bin 311, and the water suction pipe 44 is separated from the pretreatment bin 211, and the gas-liquid separation device 4 and the low-temperature evaporation device 5 with different sizes and capacities can be replaced, realizing the adaptation to different wastewater treatment amounts.

[0047] In the embodiment of the present utility model, the clear water evaporated at low temperature becomes water vapor. While condensing the water vapor into condensed water, heat can be transferred to the pretreatment bin 211 through the heat absorption pipe 322, so that the filtered wastewater in the pretreatment bin 211 is heated. The separated effect of the heated wastewater in the gas-liquid separator 41 is better, and the heat required after entering the low-temperature evaporator 51 is also lower, realizing the high-efficiency energy-saving effect of low-temperature evaporation.

[0048] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A high-efficiency and energy-saving low-temperature evaporator, comprising a frame (1), characterized in that: The frame (1) is equipped with a pretreatment device (2), a heat collection device (3), a gas-liquid separation device (4) and a low-temperature evaporation device (5); the pretreatment device (2), the gas-liquid separation device (4), the low-temperature evaporation device (5) and the heat collection device (3) are connected in sequence through pipelines; and the heat collection device (3) is connected to the pretreatment device (2) through pipelines; The heat collecting device (3) comprises a condensing component (31) and a heat absorbing component (32); the condensing component (31) is connected to the frame (1) and the heat absorbing component (32); the condensing component (31) is connected to the low-temperature evaporating device (5) via a pipeline; and the heat absorbing component (32) is connected to the pretreatment device (2) via a pipeline.

2. The high-efficiency and energy-saving low-temperature evaporator according to claim 1, characterized in that: The frame (1) comprises a base (11) and a bracket (12), wherein two of the base (11) and two of the bracket (12) are provided, and the bracket (12) is fixedly mounted on the upper end of the base (11), the left bracket (12) is connected to the gas-liquid separation device (4) and the low-temperature evaporation device (5), and the right bracket (12) is connected to the pretreatment device (2) and the heat collection device (3).

3. The high-efficiency and energy-saving low-temperature evaporator according to claim 2, characterized in that: The pretreatment device (2) comprises a filtering component (21) and a heating component (22); the filtering component (21) is connected to the heating component (22), a right side bracket (12) and a gas-liquid separation device (4); and the heating component (22) is connected to a heat absorption component (32).

4. The high-efficiency and energy-saving low-temperature evaporator according to claim 3 is characterized in that: The filter assembly (21) comprises a pre-treatment chamber (211), a filter screen (212) and an isolation plate (213); the pre-treatment chamber (211) is fixedly mounted on the rear end of the right bracket (12); the upper end of the filter screen (212) is detachably connected to the upper end of the pre-treatment chamber (211); the lower end of the filter screen (212) is detachably connected to the upper end of the isolation plate (213); the isolation plate (213) is fixedly mounted inside the pre-treatment chamber (211); a through hole corresponding to the bottom of the filter screen (212) is provided in the middle of the isolation plate (213); a water inlet is provided at the upper end of the pre-treatment chamber (211); the water inlet is located outside the filter screen (212); and the lower end of the pre-treatment chamber (211) is connected to the heating assembly (22).

5. The high-efficiency and energy-saving low-temperature evaporator according to claim 4, characterized in that: The heating component (22) comprises a heat exchange tube (221) and a heat conduction plate (222); the heat exchange tube (221) is fixedly installed at the bottom of the pretreatment bin (211); one end of the heat exchange tube (221) passes through the pretreatment bin (211) to be connected to the heat absorption component (32); and the other end of the heat exchange tube (221) passes through the bottom of the pretreatment bin (211).

6. The high-efficiency and energy-saving low-temperature evaporator according to claim 5, characterized in that: The condensation component (31) comprises a condensation bin (311), a condensation pipe (312) and a condensation water outlet pipe (313); the condensation bin (311) is fixedly mounted at the front end of the right bracket (12); the upper end of the condensation pipe (312) is fixedly connected to the top of the condensation bin (311); the condensation pipe (312) and the condensation bin (311) are cocentrically arranged; the condensation water outlet pipe (313) is fixedly mounted at the bottom of the condensation bin (311); and the condensation bin (311) is connected to the heat absorption component (32) and the low-temperature evaporation device (5).

7. The high-efficiency and energy-saving low-temperature evaporator according to claim 6, characterized in that: The heat absorption component (32) comprises a water inlet pipe (321), a heat absorption pipe (322) and a water outlet pipe (323); the water inlet pipe (321) is fixedly installed at the bottom of the condensation bin (311); the water inlet pipe (321) is fixedly connected to one end of the heat absorption pipe (322); the heat absorption pipe (322) rises in a spiral along the condensation pipe (312); the other end of the heat absorption pipe (322) is fixedly connected to the water outlet pipe (323); the water outlet pipe (323) is fixedly installed at the top of the condensation bin (311); and a water pipe is fixedly connected between the water outlet pipe (323) and one end of the heat exchange pipe (221).

8. The high-efficiency and energy-saving low-temperature evaporator according to claim 7, characterized in that: The gas-liquid separation device (4) comprises a gas-liquid separator (41), a first water pump (42), a fixing frame (43) and a water pumping pipe (44); the gas-liquid separator (41) is fixedly mounted on the rear end of the left bracket (12); the first water pump (42) is fixedly mounted on the upper end of the gas-liquid separator (41); the fixing frame (43) is fixedly mounted on the right side of the upper end of the gas-liquid separator (41); one end of the water pumping pipe (44) passes through the fixing frame (43) and is fixedly connected to the fixing frame (43); one end of the water pumping pipe (44) is fixedly connected to the input end of the first water pump (42); the other end of the water pumping pipe (44) is connected to and plugged into the outer wall of the pretreatment chamber (211); the plugging position is located between the isolation plate (213) and the heat conduction plate (222); and the gas-liquid separator (41) is connected to the low-temperature evaporation device (5).

9. The high-efficiency and energy-saving low-temperature evaporator according to claim 8, characterized in that: The low-temperature evaporation device (5) comprises a low-temperature evaporator (51), a second water pump (52) and an exhaust pipe (53); the low-temperature evaporator (51) is fixedly mounted on the front end of the left bracket (12); the second water pump (52) is fixedly mounted on the upper end of the low-temperature evaporator (51); a water pipe is fixedly connected between the input end of the second water pump (52) and the water outlet of the gas-liquid separator (41); one end of the exhaust pipe (53) is fixedly connected to the right side wall of the low-temperature evaporator (51); and the other end of the exhaust pipe (53) is connected to the outer wall of the condensation bin (311) by plugging.

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