Efficient low-temperature vacuum evaporator

Abstract

The utility model relates to the field of environmental protection equipment, in particular to an efficient low-temperature vacuum evaporator which comprises a tank body and a water tank, a condensation chamber and an evaporation chamber are arranged at the upper end and the lower end of the tank body respectively, and a liquid storage tank, a compressor, a condenser, a heating assembly and a vacuum pump are arranged outside the tank body. A condensation pipe and a heating pipe are arranged in the condensation chamber and the evaporation chamber respectively, a water collecting mechanism connected with the water tank is arranged on the tank body below the condensation pipe, a driving mechanism is arranged at the upper end of the tank body, a stirring mechanism connected with the driving mechanism is arranged in the tank body, and the two ends of the heating pipe are connected with a condenser and a heating assembly respectively. Two ends of the condenser pipe are respectively connected with the liquid storage tank and the heating assembly, and the lower end of the tank body is provided with a diaphragm pump pollution discharge unit. The device disclosed by the utility model has the effect of preventing concentrated sewage from crystallizing at the bottom.

Description

Technical Field

[0001] The utility model relates to the field of environmental protection equipment, in particular to a high-efficiency low-temperature vacuum evaporator. Background Art

[0002] Low temperature vacuum evaporator is currently a better method for treating industrial wastewater and reducing emissions, which can save enterprises wastewater treatment costs. The working principle of low temperature vacuum evaporation is to reduce the boiling point of the solution by reducing the pressure in the evaporation tank. The evaporation tank is evacuated into a vacuum state by a vacuum pump, and the vacuum degree is about -96KPA. The boiling point of water is 33℃ under this pressure. The solution is continuously circulated and atomized to the heat exchanger through a forced circulation pump, and the water in the solution is evaporated; and then the water vapor is cooled by a condensing device.

[0003] The low-temperature vacuum evaporator works well at the beginning of use and under the condition of timely sewage discharge. However, when sewage is not discharged in time, sewage is easy to crystallize at the bottom of the low-temperature evaporator. Therefore, it is particularly necessary to develop a low-temperature vacuum evaporator that prevents concentrated sewage from crystallizing at the bottom. Summary of the invention

[0004] The utility model aims to provide a high-efficiency low-temperature vacuum evaporator, which has the function of preventing concentrated sewage from crystallizing at the bottom.

[0005] The technical solutions adopted are as follows:

[0006] A high-efficiency low-temperature vacuum evaporator comprises a tank body and a water tank, wherein the upper and lower ends of the tank body are respectively a condensing chamber and an evaporating chamber, a liquid storage tank, a compressor, a condenser, a heating assembly and a vacuum pump are arranged outside the tank body, the vacuum pump is connected to both the tank body and the water tank, a condensing tube and a heating tube are arranged in the condensing chamber and the evaporating chamber respectively, a water collecting mechanism connected to the water tank is arranged on the tank body below the condensing tube, a driving mechanism is arranged on the upper end of the tank body, a stirring mechanism connected to the driving mechanism is arranged inside the tank body, two ends of the heating tube are respectively connected to the condenser and the heating assembly, two ends of the condensing tube are respectively connected to the liquid storage tank and the heating assembly, and a diaphragm pump sewage discharge unit is arranged at the lower end of the tank body.

[0007] Preferably, the condenser is a fin-type condensing device.

[0008] Preferably, a pressure gauge is installed in the tank.

[0009] Preferably, the heating assembly includes a compressor and a gas-liquid separator, the gas-liquid separator is connected to the end of the condenser tube, the gas-liquid separator is provided with a heat exchange tube wound around the compressor, and the heat exchange tube is connected to the end of the heating tube.

[0010] Preferably, a drying filter is provided at the end of the heat exchange tube.

[0011] Preferably, the condensation chamber and the evaporation chamber are both provided with glass observation windows.

[0012] Preferably, the diaphragm pump sewage discharge unit includes a sewage discharge valve, and the sewage discharge valve is connected to the diaphragm pump.

[0013] Compared with the prior art, the beneficial effects are:

[0014] 1. A stirring mechanism is added to the tank body of the utility model, and the stirring mechanism is used to make the water in the sewage evaporate faster and more efficiently, and to prevent the concentrated sewage from crystallizing at the bottom and being unable to be discharged, thereby reducing the probability of dismantling the machine for maintenance. The waste liquid is discharged using a diaphragm pump sewage discharge unit, and the diaphragm pump avoids clogging by large solid particles in the waste liquid.

[0015] 2. The heat source of the evaporation chamber of the utility model is the waste heat of the compressor, which reduces the use cost.

[0016] 3. In the utility model, the evaporation chamber and the condensation chamber are in a vacuum state under the action of the vacuum pump, and the sewage automatically enters the evaporation chamber under the action of atmospheric pressure without manual or water pump transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the left front side stereoscopic structure of a high-efficiency low-temperature vacuum evaporator of the utility model.

[0018] Figure 2 This is a schematic diagram of the right front side stereoscopic structure of a high-efficiency low-temperature vacuum evaporator of the utility model.

[0019] Figure 3 This is a cross-sectional structural diagram of a high-efficiency low-temperature vacuum evaporator of the utility model.

[0020] In the figure: 1. tank body, 101. condensation chamber, 102. evaporation chamber, 103. glass observation window, 2. water tank, 3. liquid storage tank, 4. compressor, 5. condenser, 6. vacuum pump, 7. condenser tube, 8. heating tube, 9. gas-liquid separator, 10. heat exchange tube, 11. drying filter, 12. driving mechanism, 13. stirring mechanism, 14. diaphragm pump. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with specific embodiments. Figures 1 to 3 As shown:

[0022] Embodiment 1: A high-efficiency low-temperature vacuum evaporator comprises a tank body 1 and a water tank 2. A liquid inlet is arranged in the middle of the tank body 1. The upper and lower ends of the tank body 1 are respectively a condensation chamber 101 and an evaporation chamber 102. A liquid storage tank 3, a compressor 4, a condenser 5, a heating component and a vacuum pump 6 are arranged outside the tank body 1. The vacuum pump 6 is connected to both the tank body 1 and the water tank 2. The vacuum pump 6 evacuates the inside of the tank body 1 and the water tank 2 to reduce the air pressure inside the tank body 1 and the water tank 2.

[0023] The compressor 4 is connected to the condenser 5. The condensing chamber 101 and the evaporating chamber 102 are respectively provided with a condensing tube 7 and a heating tube 8. The two ends of the heating tube 8 are respectively connected to the condenser 5 and the heating component. The two ends of the condensing tube 7 are respectively connected to the liquid storage tank 3 and the heating component. The heating tube 8 heats the sewage inside the tank body 1. Under low pressure conditions, the sewage is vaporized. When the water is vaporized, it contacts the condensing tube 7 upward. The condensing tube 7 cools the water and condenses it into liquid. The tank body 1 below the condensing tube 7 is provided with a water collecting mechanism connected to the water tank 2. The water collecting mechanism transports the liquid water into the water tank 2.

[0024] A driving mechanism 12 is provided at the upper end of the tank body 1, and a stirring mechanism 13 connected to the driving mechanism 12 is provided inside the tank body 1. The stirring mechanism 13 stirs the sewage in the tank body 1, and the stirring mechanism 13 is used to make the water in the sewage evaporate faster and more efficiently, and can also prevent the concentrated sewage from crystallizing at the bottom and being unable to be discharged, thereby reducing the probability of dismantling the machine for maintenance. A diaphragm pump sewage discharge unit is provided at the lower end of the tank body 1, and the diaphragm pump sewage discharge unit is used to discharge the waste liquid at the bottom of the tank body 1, and the diaphragm pump 14 prevents clogging by large solid particles in the waste liquid;

[0025] Embodiment 2: A high-efficiency low-temperature vacuum evaporator comprises a tank body 1 and a water tank 2. A liquid inlet is arranged in the middle of the tank body 1. The upper and lower ends of the tank body 1 are respectively a condensation chamber 101 and an evaporation chamber 102. The condensation chamber 101 and the evaporation chamber 102 are both provided with a glass observation window 103. A liquid storage tank 3, a compressor 4, a condenser 5, a heating component and a vacuum pump 6 are arranged outside the tank body 1. The vacuum pump 6 is connected to the tank body 1 and the water tank 2. The vacuum pump 6 evacuates the inside of the tank body 1 and the water tank 2 to reduce the air pressure inside the tank body 1 and the water tank 2. A barometer is installed in the tank body 1 to monitor the air pressure inside the tank body 1. The condenser 5 is a fin-type condensation device with a large heat dissipation area and a small equipment footprint.

[0026] The compressor 4 is connected to the condenser 5, and the condensing chamber 101 and the evaporating chamber 102 are respectively provided with a condensing tube 7 and a heating tube 8, and the two ends of the heating tube 8 are respectively connected to the condenser 5 and the heating component, and the two ends of the condensing tube 7 are respectively connected to the liquid storage tank 3 and the heating component, and the heating component includes a compressor 4 and a gas-liquid separator 9, and the gas-liquid separator 9 is connected to the end of the condensing tube 7, and the gas-liquid separator 9 is provided with a heat exchange tube 10 wound on the compressor 4, and the heat exchange tube 10 is connected to the end of the heating tube 8, and the end of the heat exchange tube 10 is provided with a drying filter 11,

[0027] The heating tube 8 heats the sewage inside the tank body 1. Under low pressure conditions, the sewage is vaporized. When the water is vaporized, it contacts the condenser tube 7 upward. The condenser tube 7 cools the water and condenses it into liquid. The tank body 1 below the condenser tube 7 is provided with a water collection mechanism connected to the water tank 2. The water collection mechanism transports the liquid water into the water tank 2.

[0028] A driving mechanism 12 is arranged at the upper end of the tank body 1, and a stirring mechanism 13 connected to the driving mechanism 12 is arranged inside the tank body 1. The stirring mechanism 13 stirs the sewage in the tank body 1, and the stirring mechanism 13 is utilized to make the water in the sewage evaporate faster and more efficiently, and can also prevent the concentrated sewage from crystallizing at the bottom and being unable to be discharged, thereby reducing the probability of dismantling the machine for maintenance. A diaphragm pump sewage discharge unit is arranged at the lower end of the tank body 1, and the diaphragm pump sewage discharge unit includes a sewage valve, and the sewage valve is connected to a diaphragm pump 14. The diaphragm pump sewage discharge unit is used to discharge the waste liquid at the bottom of the tank body 1, and the diaphragm pump 14 avoids clogging by large solid particles in the waste liquid.

[0029] The specific working process is as follows: when treating sewage, the water tank 2 and the tank body 1 are evacuated by using the vacuum pump 6, and the air pressure in the tank body 1 is monitored by using a barometer, and then the compressor 4 and the condenser 5 are started. Under the action of atmospheric pressure, the driving mechanism 12 is started, and the sewage is stirred by using the stirring mechanism 13. The sewage is sucked into the evaporation chamber 102, and the waste heat of the compressor 4 is transferred to the heating tube 8 to heat and vaporize the sewage. The vaporized water contacts the condenser 7 upward, and the condenser 7 cools the water and condenses it into liquid. The tank body 1 below the condenser 7 is provided with a water collecting mechanism connected to the water tank 2. The water collecting mechanism transports liquid water to the water tank 2. When the tank body 1 is discharging sewage, the diaphragm pump sewage discharge unit is started to discharge the waste liquid.

[0030] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A high-efficiency low-temperature vacuum evaporator, Features: It includes a tank body and a water tank. The upper and lower ends of the tank body are respectively a condensation chamber and an evaporation chamber. A liquid storage tank, a compressor, a condenser, a heating assembly and a vacuum pump are arranged outside the tank body. The vacuum pump is connected to both the tank body and the water tank. Condensation tubes and heating tubes are respectively arranged in the condensation chamber and the evaporation chamber. A water collecting mechanism connected to the water tank is arranged on the tank body below the condensation tube. A driving mechanism is arranged on the upper end of the tank body. A stirring mechanism connected to the driving mechanism is arranged inside the tank body. Both ends of the heating tube are respectively connected to the condenser and the heating assembly. Both ends of the condensation tube are respectively connected to the liquid storage tank and the heating assembly. A diaphragm pump sewage discharge unit is arranged at the lower end of the tank body.

2. A high-efficiency low-temperature vacuum evaporator as claimed in claim 1, Features: The condenser is a fin-type condensing device.

3. A high-efficiency low-temperature vacuum evaporator as claimed in claim 1, Features: A pressure gauge is installed in the tank body.

4. A high-efficiency low-temperature vacuum evaporator as claimed in claim 1, Features: The heating assembly comprises a compressor and a gas-liquid separator, the gas-liquid separator is connected to the end of the condenser tube, the gas-liquid separator is provided with a heat exchange tube wound around the compressor, and the heat exchange tube is connected to the end of the heating tube.

5. A high-efficiency low-temperature vacuum evaporator as claimed in claim 4, Features: A drying filter is arranged at the end of the heat exchange tube.

6. A high-efficiency low-temperature vacuum evaporator as claimed in claim 1, Features: The condensation chamber and the evaporation chamber are both provided with glass observation windows.

7. A high-efficiency low-temperature vacuum evaporator as claimed in claim 1, Features: The diaphragm pump sewage discharge unit comprises a sewage discharge valve, and the sewage discharge valve is connected to the diaphragm pump.

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