CN211302142U - Split type heat pump evaporation crystallization device - Google Patents
Split type heat pump evaporation crystallization device Download PDFInfo
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- CN211302142U CN211302142U CN201922000408.XU CN201922000408U CN211302142U CN 211302142 U CN211302142 U CN 211302142U CN 201922000408 U CN201922000408 U CN 201922000408U CN 211302142 U CN211302142 U CN 211302142U
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Abstract
The utility model discloses a split type heat pump evaporation crystallization device, which comprises a heat pump chamber and a crystallization chamber, wherein the heat pump chamber is connected with the crystallization chamber through a cold air duct and a hot air duct, a heat regenerator a, an evaporator, a heat regenerator b, a condenser, a compressor and a blower are sequentially arranged in the heat pump chamber, and an air outlet of the blower is connected with the hot air duct; the crystallizer is arranged in the crystallization chamber, a waste liquid hopper, a waste liquid crystallization tank and a plate filter are arranged on the crystallizer from bottom to top, and a liquid discharge port of the waste liquid hopper is connected with a water distribution system of the waste liquid crystallization tank through a lift pump. The utility model discloses a split type heat pump evaporation crystallization device has solved the difficult problem that traditional concentrated crystallization device energy consumption is high, perishable and life is short through the split type design of hot pumping chamber and crystallization chamber, has advantages such as the energy consumption is low, easy operation, cost are low, long service life simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the crystallization processing device, a concentrated crystallization device of industrial waste water is related to, concretely relates to split type heat pump evaporation crystallization device.
Background
In the industries of electronics, electric power, chemical industry, seawater desalination and the like, the treatment of high-salinity wastewater is always a difficult point of environment-friendly water treatment. The wastewater is high in water hardness, strong in corrosivity, high in salt content and large in water quality fluctuation, enterprises in many local chemical industries and the like mainly depend on evaporation kettles, multi-effect evaporators, MVR evaporators and the like, all the salt evaporation crystallization equipment adopts steam heating, high-salt wastewater is in a negative pressure environment, then steam heating is filled into the salt evaporation crystallization equipment to enable the wastewater to boil, the boiling temperature is about 90 ℃, liquid in the wastewater is evaporated quickly, salt can be separated out from the liquid after the liquid evaporation to finally form crystallized salt, and the separation process of the salt and the liquid is completed.
However, the prior art generally carries out evaporation treatment on the waste water inside the introduction equipment through the power heating liner, and because of the particularity of water quality (high salt content and strong corrosivity), the salt evaporation crystallization equipment has high cost and limited service life, and meanwhile, the evaporation heating speed is low, the energy consumption is high, and the heating is not uniform, so that the waste water cannot be fully evaporated, and the practicability is poor.
The heat pump technology is a mature and energy-saving technology utilizing low-grade heat sources, is applied to recovering waste heat and preheating waste water, and is an effective method for saving energy consumption.
CN108147608A discloses a multi-effect evaporative crystallization system for treating power plant salt-containing wastewater by using compressed air and a heat pump, the system is characterized in that compressed air is led out from a gas power plant air separation device to assist in atomizing the power plant salt-containing wastewater, air (waste gas) after auxiliary atomization is used as a heat source of the heat pump and sent to a heat pump evaporator through a fan, the waste gas is cooled and dehumidified, waste heat is recovered, and condensed water of vapor in the air after condensation in the evaporator is periodically discharged; the method comprises the following steps that (1) pretreatment wastewater of a power plant firstly flows into a heat pump condenser to exchange heat with refrigerant steam for preheating; the preheated wastewater and the waste gas cooled and dehumidified by the evaporator are subjected to contact mass transfer concentration in a concentration chamber, and the concentrated wastewater with higher concentration flows into a multi-stage flash evaporation device for flash evaporation. The desalinated water produced in the flash evaporation process is collected to the water collecting tank, the circulating wastewater in the flash evaporation device flows into the spray chamber to be further atomized and concentrated by the aid of compressed air, the salt-containing wastewater is evaporated in the spray chamber until the salt-containing wastewater is completely crystallized, and the generated crystallized salt is accumulated at a discharge port at the bottom of the spray chamber and is periodically removed by the scraper. The invention fully utilizes waste heat, realizes the gradient utilization of energy and realizes the zero discharge of waste water of a power plant. However, the invention has complex structure and high cost, and is not suitable for the treatment of small-volume industrial waste liquid.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a split type heat pump evaporation crystallization device, through the split type design of hot pump room and crystallization chamber, solved the difficult problem that traditional concentrated crystallization device energy consumption is high, perishable and life is short, have advantages such as the energy consumption is low, easy operation, cost are low, long service life simultaneously.
In order to solve the technical problems, the utility model provides a split type heat pump evaporation crystallization device, which comprises a heat pump chamber and a crystallization chamber, wherein the heat pump chamber and the crystallization chamber are connected through a cold air duct and a hot air duct,
the heat pump is characterized in that a heat regenerator a, an evaporator, a heat regenerator b, a condenser, a compressor and a blower are sequentially arranged in the heat pump chamber, the heat regenerator a is connected with the heat regenerator b, the evaporator is connected with the condenser, one end of the compressor is connected with an inlet of the evaporator, the other end of the compressor is connected with an outlet of the condenser, and an air outlet of the blower is connected with the hot air duct;
the crystallizer is arranged in the crystallization chamber, a waste liquid hopper, a waste liquid crystallization tank and a plate filter are arranged on the crystallizer from bottom to top, and a liquid discharge port of the waste liquid hopper is connected with a water distribution system of the waste liquid crystallization tank through a lift pump.
Preferably, a water collecting tray is arranged below the evaporator and used for collecting condensed water generated by the evaporator.
Preferably, an expansion valve is arranged between the connection of the evaporator and the condenser.
Preferably, the hot air duct is connected with a hot air port at the bottom of the crystallizer.
Preferably, the waste liquid hopper is in a conical hopper shape, so that waste liquid is convenient to collect.
Preferably, the inlet of the lift pump is connected with the liquid outlet of the waste liquid hopper, and the outlet of the lift pump is connected with the water distribution system of the waste liquid crystallization tank.
Preferably, the waste liquid crystallizing tank is fixed on the inner wall of the crystallizer through a clamping groove, and after the crystallizing process is completed, the waste liquid crystal can be taken out by drawing the waste liquid crystallizing tank.
Preferably, the waste liquid crystallizing tank is made of 304 stainless steel materials, the height is 30-50mm, and the distance is 15-20mm, so that the waste liquid crystallizing tank is prevented from being difficult to take out due to the fact that irregular crystallisates block the space.
Preferably, the waste liquid crystallization tanks are not less than 2 groups.
Preferably, the water distribution system consists of a main pipe and branch pipes, and the branch pipes are correspondingly connected with a liquid inlet of the waste liquid crystallization tank.
The plate filter is a double-layer plate filter and is used for filtering substances which are easy to scale in waste liquid and preventing the substances which are easy to scale from being attached to other places to cause blockage or equipment corrosion.
Preferably, the shell of the split heat pump evaporative crystallization device is covered by a heat insulation plate with the thickness of 20-25 mm.
The utility model has the advantages that:
(1) the utility model discloses a split type design of hot pump room and crystallization chamber has solved the high, easy difficult problem that corrodes and life is short of traditional concentrated crystallization device energy consumption.
(2) The utility model has the advantages of air recycling in the whole process, low energy consumption, no waste gas escape and no heat temperature of the heat pump system higher than 90 ℃ in the whole evaporation and crystallization process; the low conductivity of the collected condensed water can be directly discharged or reused for production. Compared with the prior art, the utility model discloses a split type evaporation crystallization device has advantages such as the energy consumption is low, easy operation, the cost is low, long service life.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a heat pump chamber, 2, a crystallization chamber, 3, a cold air channel, 4, a hot air channel, 5, a heat insulation plate, 6, heat regenerators a and 7, an evaporator, 8, a water pan, 9, heat regenerators b and b, 10, an expansion valve, 11, a condenser, 12, a compressor, 13, a blower, 14, a crystallizer, 15, a waste liquid hopper, 16, a hot air port, 17, a waste liquid crystallization tank, 18, a plate filter, 19, a lifting pump, 20, a main pipe, 21, a branch pipe, 22 and a clamping groove.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It should be noted that, in the description of the present invention, the terms "one end", "the other end", "up", "down", "front end", "rear end", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The present invention will be described in further detail with reference to the accompanying fig. 1.
A split type heat pump evaporative crystallization device comprises a heat pump chamber 1 and a crystallization chamber 2, wherein the heat pump chamber 1 and the crystallization chamber 2 are connected through a cold air duct 3 and a hot air duct 4;
a heat regenerator a6, an evaporator 7, a heat regenerator b9, a condenser 11, a compressor 12 and a blower 13 are sequentially arranged in the heat pump chamber 1, the heat regenerator a6 is connected with the heat regenerator b9, the evaporator 7 is connected with the condenser 11, one end of the compressor 12 is connected with an inlet of the evaporator 7, the other end of the compressor is connected with an outlet of the condenser 11, and an air outlet of the blower 13 is connected with the hot air duct 4;
a crystallizer 14 is arranged in the crystallization chamber 2, a waste liquid hopper 15, a waste liquid crystallization tank 17 and a plate filter 18 are arranged on the crystallizer 14 from bottom to top, and a liquid discharge port of the waste liquid hopper 15 is connected with a water distribution system of the waste liquid crystallization tank 17 through a lift pump 19.
Preferably, a water receiving tray 8 is arranged below the evaporator 7 and used for collecting condensed water generated by the evaporator.
Preferably, an expansion valve 10 is arranged between the connection of the evaporator 7 and the condenser 11.
Preferably, the hot air duct 4 is connected with a hot air port 16 at the bottom of the crystallizer 14.
Preferably, the waste liquid hopper 15 is in a conical hopper shape, so that waste liquid is convenient to collect.
Preferably, the inlet of the lift pump 17 is connected with the liquid outlet of the waste liquid hopper 15, and the outlet is connected with the water distribution system of the waste liquid crystallization tank 17.
Preferably, the waste liquid crystallizing tank 17 is fixed on the inner wall of the crystallizer 14 through a clamping groove 22, and after the crystallization process is completed, the waste liquid crystal can be taken out by pulling the waste liquid crystallizing tank.
Preferably, the waste liquid crystallizing tank 17 is made of 304 stainless steel materials, the height is 30-50mm, and the distance is 15-20mm, so that the waste liquid crystallizing tank is prevented from being difficult to take out due to the fact that irregular crystals block the space.
Preferably, the waste liquid crystallizing tanks 17 are not less than 2 groups.
Preferably, the water distribution system is composed of a main pipe 20 and a branch pipe 21, and the branch pipe 21 is correspondingly connected with the liquid inlet of the waste liquid crystallization tank 17.
The plate filter 18 is a double-layer plate filter, and is used for filtering substances which are easy to scale in waste liquid, and preventing the substances which are easy to scale from being attached to other places to cause blockage or equipment corrosion.
Preferably, the shell of the split heat pump evaporative crystallization device is covered by a heat insulation plate 5 with the thickness of 20-25 mm.
The utility model discloses an in the waste liquid bucket of evaporimeter is assembled to the waste liquid, promoted to the waste liquid crystallizer by the elevator pump in, the waste liquid contact in hot-blast and the waste liquid crystallizer tank that send through the heat pump room makes the waste liquid intensification form damp and hot air. The damp and hot air enters the hot pump chamber through the cold air duct, the temperature of the damp and hot air is lower than the dew point through the cooling mode, water vapor is condensed and discharged out of the system, the dehydrated air is heated up to become hot dry air again through the heating mode, the air is sent into the crystallizer of the crystallization chamber through the hot air duct through the air feeder, and the circulation is carried out until waste liquid is crystallized. In the crystallization process, the double-layer plate filter at the top of the crystallization chamber separates the crystallization chamber and is used for filtering substances which are easy to scale in waste liquid, preventing the substances which are easy to scale from being attached to other places to cause blockage or equipment corrosion, and after crystallization is completed, taking out waste liquid crystal substances through a pull waste liquid crystallization tank and cleaning and replacing the waste liquid crystallization tank.
The utility model has the advantages of air recycling in the whole process, low energy consumption, no waste gas escape and no heat temperature of the heat pump system higher than 90 ℃ in the whole evaporation and crystallization process; the low conductivity of the collected condensed water can be directly discharged or reused for production. Compared with the prior art, the utility model discloses a split type evaporation crystallization device area is little, simple structure, has advantages such as the energy consumption is low, easy operation, the cost is low, long service life, is fit for the processing of little water yield industrial waste liquid.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A split type heat pump evaporation crystallization device is characterized by comprising a heat pump chamber and a crystallization chamber, wherein the heat pump chamber and the crystallization chamber are connected through a cold air duct and a hot air duct;
the heat pump is characterized in that a heat regenerator a, an evaporator, a heat regenerator b, a condenser, a compressor and a blower are sequentially arranged in the heat pump chamber, the heat regenerator a is connected with the heat regenerator b, the evaporator is connected with the condenser, one end of the compressor is connected with an inlet of the evaporator, the other end of the compressor is connected with an outlet of the condenser, and an air outlet of the blower is connected with the hot air duct;
the crystallizer is arranged in the crystallization chamber, a waste liquid hopper, a waste liquid crystallization tank and a plate filter are arranged on the crystallizer from bottom to top, and a liquid discharge port of the waste liquid hopper is connected with a water distribution system of the waste liquid crystallization tank through a lift pump.
2. The split heat pump evaporative crystallization device of claim 1, wherein a water pan is disposed below the evaporator for collecting condensed water generated by the evaporator.
3. The split heat pump evaporative crystallization device of claim 1, wherein an expansion valve is provided between the evaporator and the condenser.
4. The split heat pump evaporative crystallization device of claim 1, wherein the hot air duct is connected to a hot air port at the bottom of the crystallizer.
5. The split heat pump evaporative crystallization device of claim 1, wherein the waste liquid crystallization tank is fixed on the inner wall of the crystallizer through a clamping groove.
6. The split heat pump evaporative crystallization device of claim 1, wherein the waste liquid crystallization tank is made of 304 stainless steel, and has a height of 30-50mm and a spacing of 15-20 mm.
7. The split heat pump evaporative crystallization device of claim 1, wherein the waste liquid crystallization tanks are not less than 2 groups.
8. The split-type heat pump evaporative crystallization device of claim 1, wherein the water distribution system is composed of a main pipe and branch pipes, and the branch pipes are correspondingly connected with the liquid inlet of the waste liquid crystallization tank.
9. The split-type heat pump evaporative crystallization device of claim 1, wherein the plate filter is a double-layer plate filter.
10. The split heat pump evaporative crystallization device of claim 1, wherein the housing of the split heat pump evaporative crystallization device is covered by a 20-25mm insulation board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922000408.XU CN211302142U (en) | 2019-11-19 | 2019-11-19 | Split type heat pump evaporation crystallization device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922000408.XU CN211302142U (en) | 2019-11-19 | 2019-11-19 | Split type heat pump evaporation crystallization device |
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| CN211302142U true CN211302142U (en) | 2020-08-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110882557A (en) * | 2019-11-19 | 2020-03-17 | 青岛水清木华环境工程有限公司 | Split type heat pump evaporation crystallization device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110882557A (en) * | 2019-11-19 | 2020-03-17 | 青岛水清木华环境工程有限公司 | Split type heat pump evaporation crystallization device |
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