CN213834614U

CN213834614U - Biodegradable wastewater treatment system for heat storage of salt gradient solar cell

Info

Publication number: CN213834614U
Application number: CN202022878080.4U
Authority: CN
Inventors: 陈晓弢; 王晓; 司杨; 李万琴; 郭永庆; 陈来军; 梅生伟
Original assignee: Qinghai University
Current assignee: Qinghai University
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-07-30
Anticipated expiration: 2030-12-04

Abstract

The utility model discloses a biodegradable effluent disposal system of salt gradient solar pond heat-retaining belongs to biochemical waste water treatment technical field. This biodegradable effluent disposal system of salt gradient solar cell heat-retaining includes: the degradation treatment subsystem comprises a biochemical wastewater storage bin, a first connecting pipe and a wastewater treatment box, wherein the biochemical wastewater storage bin is communicated with the wastewater treatment box, and a heat exchange pipe in the wastewater treatment box is used for heating biochemical wastewater; salt gradient solar pond heat-retaining subsystem, including solar pond and second connecting pipe, upper troposphere UCZ and the heat exchange tube intercommunication that salt solution contained in the solar pond, lower troposphere LCZ pass through the second connecting pipe with the heat exchange tube intercommunication, be equipped with the transfer pump on the second connecting pipe. The utility model discloses a biodegradable effluent disposal system of salt gradient solar pond heat-retaining utilizes solar energy to come for the biochemical waste water heating to reach the required temperature range of biochemical waste water treatment, energy-concerving and environment-protective, can extensively be used for the biochemical waste water treatment in alpine region.

Description

Biodegradable wastewater treatment system for heat storage of salt gradient solar cell

Technical Field

The utility model relates to a biochemical waste water treatment technical field, concretely relates to biodegradable effluent disposal system of salt gradient solar pond heat-retaining.

Background

With the continuous growth of industrial wastewater and domestic sewage, water pollution control is the most important and effective technical measure for solving the problem of water pollution, how to treat water pollution with high efficiency, energy conservation and environmental protection is urgent, and the application of high-efficiency biochemical treatment technology is very common. Due to the geographical position difference of each region, at low temperature in winter in alpine regions, the water environment temperature is 4-8 ℃, microorganisms cannot metabolize normally, the activity is low, the biochemical treatment effect is extremely poor, and the activated sludge floats upwards and ages. The maintenance of normal activity of microorganisms in wastewater at a temperature of above 15 ℃ is a core technology of wastewater biodegradation.

The existing wastewater biochemical treatment degradation technologies are more, mainly comprise an aerobic treatment technology and an anaerobic treatment technology, wherein the optimal activity temperature of aerobic bacteria in the aerobic biological treatment technology is 15-25 ℃, and the optimal activity temperature of anaerobic bacteria in the anaerobic biological treatment technology is 30-55 ℃. Within the optimal activity temperature range, the microbial propagation speed can be doubled when the temperature is increased by 10 ℃. In the alpine region, the water temperature is lower than 10 ℃ in winter, aerobic microorganisms or anaerobic organisms lose activity and can not normally degrade pollutants, so that biochemical wastewater cannot be discharged up to the standard, and the water body is seriously polluted.

In alpine regions, the environmental temperature needs to be increased to reach the active temperature range of aerobic microorganisms or anaerobic organisms at low temperature in winter, fossil fuel combustion or electric heating is generally adopted in the prior art, so that the consumption of fossil fuel is increased, the problem of environmental pollution is caused, and the energy conservation and the environmental protection are insufficient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problems in the prior art and providing a biodegradable wastewater treatment system for heat storage of a salt gradient solar pond.

The utility model provides a biodegradable effluent disposal system of salt gradient solar pond heat-retaining, include:

the degradation treatment subsystem comprises a biochemical wastewater storage bin, a first connecting pipe and a wastewater treatment box, wherein the biochemical wastewater storage bin is communicated with the wastewater treatment box through the first connecting pipe, and a heat exchange pipe is arranged in the wastewater treatment box and used for heating biochemical wastewater in the wastewater treatment box;

salt gradient solar pond heat-retaining subsystem, including solar pond and second connecting pipe, contain the salt solution that has the salinity gradient in the solar pond, salt solution contains upper troposphere UCZ, non-troposphere NCZ and lower troposphere LCZ, upper troposphere UCZ with the one end intercommunication of heat exchange tube, lower troposphere LCZ pass through the second connecting pipe with the other end intercommunication of heat exchange tube, still be equipped with the transfer pump on the second connecting pipe, the transfer pump is connected with the power module electricity.

Preferably, the salt gradient solar cell heat storage subsystem further comprises a photo-thermal coating which is arranged at the bottom of the solar cell and can efficiently convert solar energy into heat energy and heat the saline water in the lower troposphere LCZ.

Preferably, the salt gradient solar pond heat-storage subsystem still includes the snoot, covers the solar pond top, the snoot internal surface has certain curvature can prevent that steam from condensing into ice, and the snoot has high light transmissivity and spotlight nature.

Preferably, the salt gradient solar pond heat storage subsystem further comprises a temperature sensor, the temperature sensor is electrically connected with the power module, and the temperature sensor is used for measuring the temperature of the temperature field of the salt water in the solar pond.

Preferably, the infusion pump is a high-temperature and salt corrosion resistant hot salt water pump, and the second connecting pipe is a salt corrosion resistant connecting pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a biodegradable effluent disposal system of salt gradient solar pond heat-retaining utilizes salt gradient solar pond to turn into solar energy heat energy for the biochemical waste water heating in the effluent disposal case to reach the required temperature range of biochemical waste water treatment. The utility model discloses can not only prevent that the salt solution in the general solar pond from freezing the influence to whole light transmissivity, can also prevent the evaporation of water in the solar pond, cause the salinity to condense at the bottom of the pool and appear. The utility model discloses can also monitor entire system's thermal efficiency at any time, can extensively be used for the biochemical waste water treatment in alpine region, cause pollution and excessive energy resource consumption to the environment when having avoided adopting burning fossil fuel or electrical heating, energy-concerving and environment-protective.

Drawings

Fig. 1 is a schematic structural view of the present invention;

description of reference numerals:

1. the system comprises a biochemical wastewater storage bin, 2, a first connecting pipe, 3, an infusion pump, 4, a light collecting cover, 5, a wastewater treatment box, 6, a photo-thermal coating, 7, a heat exchange pipe, 8, a second connecting pipe, 9, a solar pond, 10, a degradation treatment subsystem, 20, a salt gradient solar pond heat storage subsystem, 21, an upper troposphere UCZ, 22, a non-troposphere NCZ and 23, a lower troposphere LCZ.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying fig. 1, but it should be understood that the scope of the present invention is not limited by the following detailed description. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1:

as shown in figure 1, the utility model provides a biodegradable effluent disposal system of salt gradient solar pond heat-retaining, include: the system comprises a degradation processing subsystem 10 and a salt gradient solar pond heat storage subsystem 20, wherein the degradation processing subsystem 10 comprises a biochemical wastewater storage bin 1, a first connecting pipe 2 and a wastewater processing box 5, the biochemical wastewater storage bin 1 is communicated with the wastewater processing box 5 through the first connecting pipe 2, a heat exchange pipe 7 is arranged in the wastewater processing box 5, and the heat exchange pipe 7 is used for heating biochemical wastewater in the wastewater processing box 5; salt gradient solar pond heat-retaining subsystem 20 includes solar pond 9 and second connecting pipe 8, contain the salt solution that has the salinity gradient in the solar pond 9, salt solution contains upper troposphere UCZ21, non-troposphere NCZ22 and lower troposphere LCZ23, upper troposphere UCZ21 with the one end intercommunication of heat exchange tube 7, lower troposphere LCZ23 through second connecting pipe 8 with the other end intercommunication of heat exchange tube 7, still be equipped with transfer pump 3 on the second connecting pipe 8, transfer pump 3 is connected with the power module electricity.

The working principle of example 1 is now briefly described:

the brine in the solar pond is generally divided into three layers: an Upper Convection Zone (UCZ) 21, a Non-convection Zone (NCZ) 22 and a Lower Convection Zone (LCZ) 23. Sunlight irradiates the saline water in the solar cell 9 of the salt gradient solar cell heat storage subsystem 20, and the saline water absorbs light energy and is converted into heat energy. The temperature of the brine in the solar pond 9 is increased, and the brine contains salt, so that when the salt concentration of the brine is high and has a salinity gradient, the salt content of the upper troposphere UCZ21 is low, the salt content of the lower troposphere LCZ23 is high, and the salt content of the non-troposphere NCZ22 is between the two contents. Resulting in a lower brine density in the upper troposphere UCZ21 and a higher brine density in the lower troposphere LCZ23, which results in no convection of the brine in the solar pond 9. When the brine fails to form convection, heat is accumulated in the lower troposphere LCZ23, while the upper troposphere UCZ21, which is lighter in weight, seals off the heat energy accumulated in the lower troposphere LCZ 23. Thus, the temperature of the lower troposphere LCZ23 is higher and higher. The infusion pump 3 conveys high-temperature saline water in the lower troposphere LCZ23 to the heat exchange tube 7, the high-temperature saline water in the heat exchange tube 7 heats biochemical wastewater in the wastewater treatment box 5, and the cooled saline water flows back to the upper troposphere UCZ21 in the solar pond 9. Leading-in to waste water treatment case 5 of biochemical waste water in storing storehouse 1 with biochemical waste water, the utility model discloses utilize salt gradient solar pond to turn into solar energy heat energy for the biochemical waste water heating in waste water treatment case 5 to reach the required temperature range of biochemical waste water treatment, can extensively be used for the biochemical waste water treatment in alpine region, cause pollution and excessive energy resource consumption to the environment when having avoided adopting burning fossil fuel or electrical heating, energy-concerving and environment-protective.

Example 2:

based on example 1, solar energy is absorbed more efficiently.

As shown in fig. 1, the salt gradient solar pond heat storage subsystem 20 further comprises a photo-thermal coating 6 disposed at the bottom of the solar pond 9, wherein the photo-thermal coating 6 can efficiently convert solar energy into heat energy and heat the saline water in the lower troposphere LCZ 23.

The photo-thermal coating 6 at the bottom of the solar pond 9 can efficiently convert solar energy into heat energy and heat the saline water in the lower convection layer LCZ23, thereby greatly improving the utilization efficiency of the solar energy.

Example 3:

based on example 1, solar energy is absorbed more efficiently.

As shown in fig. 1, the salt gradient solar pond heat storage subsystem 20 further includes a light-gathering cover 4 covering the top end of the solar pond 9, the inner surface of the light-gathering cover 4 has a certain curvature to prevent water vapor from condensing into ice, and the light-gathering cover 4 has high light transmittance and light-gathering property.

The snoot 4 has the heat preservation function, not only can prevent that the upper convection layer UCZ21 from freezing on extremely cold weather condition lower surface to and prevent that the strong wind from directly blowing the upper convection layer UCZ21, cause the upper convection layer UCZ21 upper surface ripple to fluctuate, the influence to the whole light transmissivity of salt water. And can also prevent the water in the brine from evaporating to cause the salt to be condensed and separated out at the bottom of the pool.

As shown in fig. 1, the salt gradient solar cell heat storage subsystem 20 preferably further includes a temperature sensor electrically connected to the power module, and the temperature sensor is used for measuring the temperature of the temperature field of the brine in the solar cell 9. The thermal efficiency of the entire salt gradient solar cell thermal storage subsystem 20 can be monitored at any time.

As shown in fig. 1, as a preferred mode, the infusion pump 3 is a hot brine pump resistant to high temperature and salt corrosion, and the second connection pipe 8 is a salt corrosion resistant connection pipe. The infusion pump 3 and the second connection pipe 8 are protected from corrosion damage.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A biodegradable wastewater treatment system with heat stored in a salt gradient solar pond is characterized by comprising:

the degradation treatment subsystem (10) comprises a biochemical wastewater storage bin (1), a first connecting pipe (2) and a wastewater treatment box (5), wherein the biochemical wastewater storage bin (1) is communicated with the wastewater treatment box (5) through the first connecting pipe (2), a heat exchange pipe (7) is arranged in the wastewater treatment box (5), and the heat exchange pipe (7) is used for heating biochemical wastewater in the wastewater treatment box (5);

salt gradient solar pond heat-retaining subsystem (20), including solar pond (9) and second connecting pipe (8), contain the salt solution that has the salinity gradient in solar pond (9), salt solution contains troposphere UCZ (21), non-troposphere NCZ (22) and lower troposphere LCZ (23), go up troposphere UCZ (21) with the one end intercommunication of heat exchange tube (7), lower troposphere LCZ (23) through second connecting pipe (8) with the other end intercommunication of heat exchange tube (7), still be equipped with on second connecting pipe (8) and transfer pump (3), transfer pump (3) are connected with the power module electricity.

2. The salt gradient solar pond heat storage biodegradable wastewater treatment system as set forth in claim 1, characterized in that the salt gradient solar pond heat storage subsystem (20) further comprises a photo-thermal coating (6) disposed at the bottom of the solar pond (9), the photo-thermal coating (6) being capable of efficiently converting solar energy into thermal energy and heating the brine in the lower convection layer LCZ (23).

3. The salt gradient solar pond heat storage biodegradable wastewater treatment system as claimed in claim 1, wherein the salt gradient solar pond heat storage subsystem (20) further comprises a light-gathering cover (4) covering the top end of the solar pond (9), the inner surface of the light-gathering cover (4) has curvature to prevent water vapor from condensing into ice, and the light-gathering cover (4) has high light transmittance and light gathering property.

4. The salt gradient solar thermal storage biodegradable wastewater treatment system as set forth in claim 1, characterized in that the salt gradient solar thermal storage subsystem (20) further comprises a temperature sensor electrically connected to the power module, the temperature sensor being configured to measure the temperature of the temperature field of the brine in the solar cell (9).

5. The salt-gradient solar heat-storage biodegradable wastewater treatment system as set forth in claim 1, wherein the infusion pump (3) is a high-temperature and salt-corrosion-resistant hot-brine pump, and the second connection pipe (8) is a salt-corrosion-resistant connection pipe.