CN113390274A

CN113390274A - Energy-conserving heat transfer device of waste water treatment

Info

Publication number: CN113390274A
Application number: CN202110678031.2A
Authority: CN
Inventors: 王祥; 程燕琼; 王立新; 刘亚娜
Original assignee: Zhejiang Keda Environmental Engineering Co ltd
Current assignee: Zhejiang Keda Environmental Engineering Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-09-14

Abstract

The invention relates to an energy-saving heat exchange device for wastewater treatment, which comprises a preheating heat exchanger and a plurality of thermometers; the method is characterized in that: the preheating heat exchanger comprises a plurality of liquid chambers, a plurality of conducting pipes, a plurality of communicating pipes and a vacuum chamber; the plurality of liquid chambers comprise a liquid chamber A, a liquid chamber B, a liquid chamber C, a liquid chamber D, a liquid chamber E and a liquid chamber F; the plurality of thermometers comprise a thermometer 02, a thermometer 03, a thermometer 04, a thermometer 05, a thermometer 06 and a thermometer 07; the plurality of thermometers are respectively arranged on the plurality of liquid chambers; the beneficial effects are that: the energy-saving efficiency of cold-heat exchange is improved, the energy is saved, the production cost is reduced, and the popularization and the application of the wet oxidation wastewater treatment are promoted; plays the roles of reducing the environmental pollution and protecting the environment, and can bring very beneficial effects to enterprises, society and countries.

Description

Energy-conserving heat transfer device of waste water treatment

Technical Field

The invention relates to a heat exchange device for wastewater treatment, in particular to an energy-saving heat exchange device for wastewater treatment.

Background

The common wastewater treatment method comprises a wet oxidation method, wherein the wet oxidation method for wastewater treatment is to mix wastewater to be treated with a catalyst in a high-temperature and high-pressure reaction kettle environment to oxidize organic matters in the wastewater into carbon dioxide and water so as to achieve the purpose of removing pollutants; compared with the conventional method, the method has the advantages of wide application range, high treatment efficiency, high oxidation rate and the like, is valued and advocated by environmental protection mechanisms of various countries in the world, and is a water treatment method with great development prospect.

The existing wet catalytic oxidation wastewater treatment method comprises the steps of enabling wastewater to enter a wastewater collection tank, inputting the wastewater into a preheater through a high-pressure pump, preheating the wastewater by the preheater, transmitting the wastewater into an electric heater, enabling the wastewater heated to a specified temperature to enter a wet catalytic oxidation reactor filled with a catalyst to perform oxidative decomposition reaction, enabling the water and gas after catalytic oxidation treatment to be subjected to certain reaction time to exchange heat with heat energy to be supplied to the wastewater to be treated through a preheating heat exchanger, and enabling the water and gas after oxidation treatment to enter a gas-liquid separation tank to be separated and then to be discharged to reach the standard.

At present, the wet oxidation method is mainly applied to two aspects: firstly, the pretreatment of biochemical treatment of high-concentration refractory organic wastewater is carried out to improve the biodegradability, and secondly, the pretreatment is used for treating various toxic and harmful polluted wastewater.

The wet oxidation method cannot be widely applied due to the reasons of complex equipment, large investment, high operating cost and the like of a wastewater treatment system; particularly, the treatment of the wastewater needs to be carried out under the environment conditions of a high-temperature (150-350 ℃) and high-pressure (0.5-20 MPa) reaction kettle, and a large amount of energy is consumed for reaching the high temperature (150-350 ℃).

Therefore, the reduction of energy consumption and the saving of wastewater treatment cost are important problems to be solved by the popularization of the wet oxidation wastewater treatment method; the research on energy-saving technologies of various links of wastewater treatment, particularly the energy-saving technology of a heat exchanger, is a good task which needs to be made by people urgently.

Disclosure of Invention

The invention provides an energy-saving heat exchange device for wastewater treatment, which can solve the problems in the background art and achieve the purposes of energy conservation and consumption reduction.

The technical scheme for solving the technical problem is as follows: 1. in order to solve the problem of high energy consumption in wastewater treatment by wet catalytic oxidation, the heat exchanger mainly saves energy and reduces consumption, and the energy conversion efficiency of cold-heat exchange is improved; 2. according to the physical characteristics of temperature from low to high and from high to low, the preheating heat exchanger is arranged into a multi-section cold and heat exchange chamber consisting of a plurality of liquid chambers, so that the preheating temperature of the preheated wastewater is gradually increased from low to high, and high-temperature and high-pressure gas water cooled after catalytic reaction is gradually cooled from high to low; therefore, the temperature of the preheated wastewater is higher than that of the preheated temperature in the prior art, and the cooled high-pressure high-temperature gas and water are lower than that of the cooled temperature in the prior art, so that a cooler which is additionally arranged in the prior art is replaced; therefore, the energy conversion efficiency of cold-heat exchange is improved, and when the heating system is heated on the basis of higher temperature, the heating requirement can be met without too much energy consumption, so that the heating energy is saved, the cost is reduced, and the problem of high energy consumption of a wet oxidation wastewater treatment system is solved; 3. according to the principle of adaptability of efficiency and flow of cold-heat exchange, a thermometer for observation is arranged on the preheating heat exchanger, a valve 03 of a wastewater input system is adjusted according to the temperature value of the preheating heat exchanger, the flow of the wastewater input system is controlled, the flow value of the wastewater input system is optimally adapted to the temperature value of the preheating heat exchanger, the energy-saving efficiency of the cold-heat exchange can be further improved, and the purposes of saving energy and reducing consumption are further achieved.

The invention comprises a preheating heat exchanger and a plurality of thermometers; the method is characterized in that: the preheating heat exchanger comprises a plurality of liquid chambers, a plurality of conducting pipes, a plurality of communicating pipes and a vacuum chamber; the plurality of liquid chambers comprise a liquid chamber A, a liquid chamber B, a liquid chamber C, a liquid chamber D, a liquid chamber E and a liquid chamber F; the plurality of thermometers comprise a thermometer 02, a thermometer 03, a thermometer 04, a thermometer 05, a thermometer 06 and a thermometer 07; the plurality of thermometers are respectively arranged on the plurality of liquid chambers.

The liquid cavity A is internally provided with a fin corrugated pipe A, the liquid cavity B is internally provided with a fin corrugated pipe B, the liquid cavity C is internally provided with a fin corrugated pipe C, the liquid cavity D is internally provided with a fin corrugated pipe D, the liquid cavity E is internally provided with a fin corrugated pipe E, and the liquid cavity F is internally provided with a fin corrugated pipe F.

The conduction pipes include a conduction pipe FEs, a conduction pipe EDx, a conduction pipe DC, a conduction pipe CB, a conduction pipe BA, a conduction pipe Ax, a conduction pipe EFx and a conduction pipe Fs.

The conduction tube FEs is in conduction connection with the fin corrugated tube E of the liquid chamber F and the liquid chamber E; the conduction pipe EDx is in conduction connection with the fin corrugated pipe D in the liquid chamber D and the fin corrugated pipe E in the liquid chamber E; the conduction pipe DC is in conduction connection with the fin corrugated pipe C in the liquid chamber C and the fin corrugated pipe D in the liquid chamber D; the conduction tube CB is in conduction connection with the fin corrugated tube B in the liquid chamber B and the fin corrugated tube C in the liquid chamber C; the conduction pipe BA is in conduction connection with the fin corrugated pipe A in the liquid chamber A and the fin corrugated pipe B in the liquid chamber B; the conduction pipe EFx conducts and connects the liquid chamber E and the fin corrugated pipe F in the liquid chamber F; one end of the conduction pipe Ax is in conduction connection with the liquid chamber A, and the other end of the conduction pipe Ax is in conduction connection with the micro-channel mixing system; one end of the conduction pipe Fs is in conduction connection with the liquid chamber F, and the other end of the conduction pipe Fs is used for being in conduction connection with the gas-liquid separation system.

The plurality of communication pipes include communication pipe As, communication pipe ABx, communication pipe BCs, communication pipe CDx, communication pipe DEs, and communication pipe Fx; one end of the communicating pipe As is communicated with the liquid chamber A, and the other end of the communicating pipe As is communicated with the reaction system; the communicating pipe ABx is communicated with the liquid chamber A and the liquid chamber B; the communicating pipe BCs are communicated with the liquid chamber B and the liquid chamber C; the communicating pipe CDx communicates the liquid chamber C with the liquid chamber D; the communicating pipe DEs communicates the liquid chamber D with the liquid chamber E; one end of the communicating pipe Fx is communicated with the liquid chamber F, and the other end of the communicating pipe Fx is communicated with the wastewater input system.

The communicating pipe Fx, the liquid chamber F, the conducting pipe FEs, the fin corrugated pipe E, the conducting pipe EDx, the fin corrugated pipe D, the conducting pipe DC, the fin corrugated pipe C, the conducting pipe CB, the fin corrugated pipe B, the conducting pipe BA, the fin corrugated pipe A and the conducting pipe Ax form a normal-temperature wastewater channel; the communicating pipe As, the liquid chamber A, the communicating pipe ABx, the liquid chamber B, the communicating pipe BCs, the liquid chamber C, the communicating pipe CDx, the liquid chamber D, the communicating pipe DEs, the liquid chamber E, the conducting pipe EFx, the fin corrugated pipe F and the conducting pipe Fs form a high-temperature gas-liquid channel; the normal-temperature wastewater channel and the high-temperature gas-liquid channel are mutually penetrated and interacted; the normal-temperature wastewater channel has a gradual cooling effect on the high-temperature gas-liquid channel, and the high-temperature gas-liquid channel has a gradual heating effect on the normal-temperature wastewater channel.

The left end of vacuum chamber links to each other with liquid chamber F, and the right-hand member links to each other with liquid chamber E, and its effect lies in: the liquid chamber F and the liquid chamber E are isolated in vacuum, so that heat energy of the liquid chamber E is prevented from being transmitted to the liquid chamber F, heat energy reduction caused by the fact that the liquid chamber E is completely connected with the liquid chamber F is avoided, the liquid chamber F is prevented from being influenced by the heat transmission of the liquid chamber E, and the effects of heat insulation and heat preservation on the liquid chamber E and the effects of cold insulation and heat preservation on the liquid chamber F are achieved; thereby achieving the technical effect of saving energy.

The energy-saving wastewater treatment system comprises a wastewater input system, the invention, a micro-channel mixing system, a high-pressure gas source system, a heating system, a reaction system and a gas-liquid separation system.

The waste water input system comprises input waste water, a valve 01, a valve 02, a buffer tank, a thermometer 01, a valve 03, a filter 1, a high-pressure pump, a pressure gauge 01, a filter 2 and a flowmeter 1.

The device comprises a preheating heat exchanger, a thermometer 02, a thermometer 03, a thermometer 04, a thermometer 05, a thermometer 06 and a thermometer 07;

the preheating heat exchanger comprises a communicating pipe Fx, a liquid chamber F, a conducting pipe FEs, a fin corrugated pipe E, a conducting pipe EDx, a fin corrugated pipe D, a conducting pipe DC, a fin corrugated pipe C, a conducting pipe CB, a fin corrugated pipe B, a conducting pipe BA, a fin corrugated pipe A, a conducting pipe Ax, a communicating pipe As, a liquid chamber A, a communicating pipe ABx, a liquid chamber B, a communicating pipe BCs, a liquid chamber C, a communicating pipe CDx, a liquid chamber D, a communicating pipe DEs, a liquid chamber E, a conducting pipe EFx, a fin corrugated pipe F, a conducting pipe Fs and a vacuum chamber.

The micro-channel mixing system comprises a valve 04, a valve 05, a micro-channel mixer and a valve 07.

The high-pressure air source system comprises an air compressor, a valve 06, an air pressing tank, a pressure gauge 02 and a flowmeter 2.

The heating system comprises a heating heat exchanger, a temperature controller and a thermometer 08.

The reaction system comprises a valve 08, a reaction tower, a pressure gauge 03, a thermometer 09, a catalyst, a pressure gauge 04, a thermometer 10, a valve 09, a pressure gauge 05 and a valve 10.

The gas-liquid separation system comprises a gas-liquid separation tank, a thermometer 11, a pressure gauge 06, a valve 11, a valve 12, a water washing spray tower and discharged water.

The invention has the beneficial effects that: the energy-saving efficiency of cold-heat exchange is improved, the energy is saved, the production cost is reduced, and the popularization and the application of the wet oxidation wastewater treatment are promoted; plays the roles of reducing the environmental pollution and protecting the environment, and can bring very beneficial effects to enterprises, society and countries.

Drawings

FIG. 1 is a schematic block diagram of the present invention applied to an energy-saving wastewater treatment system.

FIG. 2 is a block diagram of an energy-saving wastewater treatment system to which the present invention is applied.

Fig. 3 is a block diagram of the present invention.

In the figure, 1, a waste water input system; IN. inputting waste water; FM01, valve 01; fm02. valve 02; q01. a buffer tank; t01. thermometer 01; fm03, valve 03; glq1 filter 1; GYB. high pressure pump; y01. pressure gauge 01; glq2. filter 2; s01, a flow meter 1; 2. HRQ1, preheating a heat exchanger; t02. thermometer 02; t03. thermometer 03; t04. thermometer 04; t05. thermometer 05; t06, a thermometer 06; t07. thermometer 07; HR01 communicating tube Fx; hr02. liquid chamber F; HR03, conducting tubes FEs; HR04. fin bellows E; hr05. conducting tube EDx; HR06. fin bellows D; HR07, conducting tube DC; HR08. fin bellows C; HR09. a conduction tube CB; HR10, fin bellows B; HR11. conducting pipe BA; HR12, fin bellows A; HR13. conducting tube Ax; HR14. communicating tube As; HR15. liquid chamber A; HR16, communicating tube ABx; HR17. liquid chamber B; HR18, communicating tubes BCs; hr19. liquid chamber C; hr20, communicating tube CDx; hr21. liquid chamber D; hr22, communicating tube DEs; hr23. liquid chamber E; HR24, conduit EFx; HR25, fin bellows F; HR26. conducting pipe Fs; HR27 vacuum chamber; 3. a microchannel mixing system, FM04. valve 04; fm05. valve 05; wtdhhq. microchannel mixer; fm07. valve 07; 4. a high pressure gas source system; KYJ. air compressor; fm06, valve 06; q02. a compressed gas tank; y02 pressure gauge 02; s02, a flow meter 2; 5. a heating system; HRQ2. heating heat exchanger; kwq. temperature controller; t08. thermometer 08; 6. a reaction system; fm08. valve 08; q03. a reaction column; y03 pressure gauge 03; t09. thermometer 09; chj01. catalyst; y04, pressure gauge 04; t10, a thermometer 10; fm09, valve 09; y05 pressure gauge 05; fm10. valve 10; 7. a gas-liquid separation system; q04. gas-liquid separation tank; t11, a thermometer 11; y06. pressure gauge 06; fm11. valve 11; fm12. valve 12; sxplt, water scrubbing spray tower; uot, water discharge.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment.

In fig. 3, the invention (2) comprises a preheat exchanger (HRQ 1), a plurality of temperature tables; the method is characterized in that: the preheating heat exchanger (HRQ 1) comprises a plurality of liquid chambers, a plurality of conducting pipes, a plurality of communicating pipes and a vacuum chamber (HR 27); the plurality of liquid chambers includes liquid chamber a (HR 15), liquid chamber B (HR 17), liquid chamber C (HR 19), liquid chamber D (HR 21), liquid chamber E (HR 23), liquid chamber F (HR 02); the plurality of thermometers comprises thermometer 02 (T02), thermometer 03 (T03), thermometer 04 (T04), thermometer 05 (T05), thermometer 06 (T06), and thermometer 07 (T07); the plurality of thermometers are respectively arranged on the plurality of liquid chambers.

A fin corrugated pipe A (HR 12) is arranged in the liquid cavity A (HR 15), a fin corrugated pipe B (HR 10) is arranged in the liquid cavity B (HR 17), a fin corrugated pipe C (HR 08) is arranged in the liquid cavity C (HR 19), a fin corrugated pipe D (HR 06) is arranged in the liquid cavity D (HR 21), a fin corrugated pipe E (HR 04) is arranged in the liquid cavity E (HR 23), and a fin corrugated pipe F (HR 25) is arranged in the liquid cavity F (HR 02).

The plurality of conduction pipes comprise conduction pipes FEs (HR 03), conduction pipes EDx (HR 05), conduction pipes DC (HR 07), conduction pipes CB (HR 09), conduction pipes BA (HR 11), conduction pipes Ax (HR 13), conduction pipes EFx (HR 24) and conduction pipes Fs (HR 26).

The conduction pipe FEs (HR 03) conducts and connects the liquid chamber F (HR 02) and the fin corrugated pipe E (HR 04) of the liquid chamber E (HR 23); the conduction pipe EDx (HR 05) is in conduction connection with the finned corrugated pipe D (HR 06) in the liquid chamber D (HR 21) and the finned corrugated pipe E (HR 04) in the liquid chamber E (HR 23); the conduction pipe DC (HR 07) is in conduction connection with the finned corrugated pipe C (HR 08) in the liquid chamber C (HR 19) and the finned corrugated pipe D (HR 06) in the liquid chamber D (HR 21); the conduction pipe CB (HR 09) is in conduction connection with the finned corrugated pipe B (HR 10) in the liquid chamber B (HR 17) and the finned corrugated pipe C (HR 08) in the liquid chamber C (HR 19); the conduction pipe BA (HR 11) is in conduction connection with the finned corrugated pipe A (HR 12) in the liquid chamber A (HR 15) and the finned corrugated pipe B (HR 10) in the liquid chamber B (HR 17); the conduction pipe EFx (HR 24) is in conduction connection with the finned corrugated pipe F (HR 25) in the liquid chamber E (HR 23) and the liquid chamber F (HR 02); one end of a conducting pipe Ax (HR 13) is in conducting connection with the liquid chamber A (HR 15), and the other end of the conducting pipe Ax is in conducting connection with the micro-channel mixing system (3); one end of the conducting pipe Fs (HR 26) is in conducting connection with the liquid chamber F (HR 02), and the other end is used for conducting connection with the gas-liquid separation system (7).

The plurality of communication pipes include a communication pipe As (HR 14), a communication pipe ABx (HR 16), a communication pipe BCs (HR 18), a communication pipe CDx (HR 20), a communication pipe DEs (HR 22), and a communication pipe Fx (HR 01); one end of the communicating pipe As (HR 14) is communicated with the liquid chamber A (HR 15), and the other end is communicated with the reaction system (6); the communicating pipe ABx (HR 16) is communicated with a liquid chamber A (HR 15) and a liquid chamber B (HR 17); the communicating pipe BCs (HR 18) are communicated with the liquid chamber B (HR 17) and the liquid chamber C (HR 19); the communicating pipe CDx (HR 20) is communicated with the liquid chamber C (HR 19) and the liquid chamber D (HR 21); the communicating pipe DEs (HR 22) is communicated with the liquid chamber D (HR 21) and the liquid chamber E (HR 23); one end of the communicating pipe Fx (HR 01) is communicated with the liquid chamber F (HR 02), and the other end is communicated with the wastewater input system (1).

The communicating pipe Fx (HR 01), the liquid cavity F (HR 02), the conducting pipe FEs (HR 03), the fin corrugated pipe E (HR 04), the conducting pipe EDx (HR 05), the fin corrugated pipe D (HR 06), the conducting pipe DC (HR 07), the fin corrugated pipe C (HR 08), the conducting pipe CB (HR 09), the fin corrugated pipe B (HR 10), the conducting pipe BA (HR 11), the fin corrugated pipe A (HR 12) and the conducting pipe Ax (HR 13) form a normal-temperature wastewater channel; the high-temperature gas-liquid channel is formed by the communicating pipe As (HR 14), a liquid cavity A (HR 15), the communicating pipe ABx (HR 16), a liquid cavity B (HR 17), the communicating pipe BCs (HR 18), the liquid cavity C (HR 19), the communicating pipe CDx (HR 20), the liquid cavity D (HR 21), the communicating pipe DEs (HR 22), the liquid cavity E (HR 23), the conducting pipe EFx (HR 24), the fin corrugated pipe F (HR 25) and the conducting pipe Fs (HR 26); the normal-temperature wastewater channel and the high-temperature gas-liquid channel are mutually penetrated and interacted; the normal-temperature wastewater channel has a gradual cooling effect on the high-temperature gas-liquid channel, and the high-temperature gas-liquid channel has a gradual heating effect on the normal-temperature wastewater channel.

The left end of vacuum chamber (HR 27) links to each other with liquid chamber F (HR 02), and the right-hand member links to each other with liquid chamber E (HR 23), and its effect lies in: the liquid chamber F (HR 02) and the liquid chamber E (HR 23) are isolated in vacuum, and the heat energy of the liquid chamber E (HR 23) is prevented from being transmitted to the liquid chamber F (HR 02), so that the heat energy reduction caused by the connection of the liquid chamber E (HR 23) and the liquid chamber F (HR 02) is avoided, the cooling performance of the liquid chamber F (HR 02) is also prevented from being influenced by the heat transfer of the liquid chamber E (HR 23) of the liquid chamber F (HR 02), and the effects of heat insulation and heat preservation of the liquid chamber E (HR 23) and the effects of heat insulation and heat preservation of the liquid chamber F (HR 02) are achieved; thereby achieving the technical effect of saving energy.

Example two.

In fig. 1, an energy-saving wastewater treatment system adopting the present invention is composed of a wastewater input system (1), the present invention (2), a micro-channel mixing system (3), a high-pressure gas source system (4), a heating system (5), a reaction system (6), and a gas-liquid separation system (7); the method is characterized in that: the present invention (2).

IN fig. 2, the wastewater input system (1) includes input wastewater (IN), a valve 01 (FM 01), a valve 02 (FM 02), a buffer tank (Q01), a thermometer 01 (T01), a valve 03 (FM 03), a filter 1 (GLQ 1), a high pressure pump (GYB), a pressure gauge 01 (Y01), a filter 2 (GLQ 2), and a flow meter 1 (S01).

In fig. 2, the invention (2) comprises a preheat heat exchanger (HRQ 1), a temperature table 02 (T02), a temperature table 03 (T03), a temperature table 04 (T04), a temperature table 05 (T05), a temperature table 06 (T06), a temperature table 07 (T07);

in fig. 3, the preheat exchanger (HRQ 1) according to the present invention (2) includes a communication pipe Fx (HR 01), a liquid chamber F (HR 02), a conduction pipe FEs (HR 03), a fin bellows E (HR 03), a conduction pipe 03 (HR 03), a fin bellows D (HR 03), a conduction pipe DC (HR 03), a fin bellows C (HR 03), a conduction pipe CB (HR 03), a fin bellows B (HR 03), a conduction pipe BA (HR 03), a fin bellows a (HR 03), a conduction pipe Ax (HR 03), a communication pipe As (HR 03), a liquid chamber a (HR 03), a communication pipe ABx (HR 03), a liquid chamber B (HR 03), a communication pipe BCs (HR 03), a liquid chamber C (HR 03), a communication pipe 03 (HR 03), a liquid chamber D (HR 03), a communication pipe 03 (HR 03), a liquid chamber E (HR 03), a conduction pipe HR03, a fin bellows (HR 03), and a fin bellows (HR 03).

In fig. 2, the microchannel mixing system (3) comprises a valve 04 (FM 04), a valve 05 (FM 05), a microchannel mixer (WTDHHQ), and a valve 07 (FM 07).

In fig. 2, the high-pressure air source system (4) includes an air compressor (KYJ), a valve 06 (FM 06), a compressed air tank (Q02), a pressure gauge 02 (Y02), and a flow meter 2 (S02).

In fig. 2, the heating system (5) includes a heating heat exchanger (HRQ 2), a thermostat (KWQ), and a temperature meter 08 (T08).

In fig. 2, the reaction system (6) includes a valve 08 (FM 08), a reaction column (Q03), a pressure gauge 03 (Y03), a temperature gauge 09 (T09), a catalyst (CHJ 01), a pressure gauge 04 (Y04), a temperature gauge 10 (T10), a valve 09 (FM 09), a pressure gauge 05 (Y05), and a valve 10 (FM 10).

In fig. 2, the gas-liquid separation system (7) includes a gas-liquid separation tank (Q04), a thermometer 11 (T11), a pressure gauge 06 (Y06), a valve 11 (FM 11), a valve 12 (FM 12), a water washing spray tower (SXPLT), and drain water (UOT).

In fig. 2, according to the temperature values of the temperature meter 02 (T02), the temperature meter 03 (T03), the temperature meter 04 (T04), the temperature meter 05 (T05), the temperature meter 06 (T06) and the temperature meter 07 (T07) of the preheat heat exchanger (HRQ 1) of the present invention (2), the valve 03 (FM 03) of the wastewater input system is adjusted to control the flow rate of the wastewater input system, so that the flow rate value of the wastewater input system flowmeter 1 (S01) is optimally matched with the temperature values of the preheat heat exchanger (HRQ 1), the temperature meter 02 (T02), the temperature meter 03 (T03), the temperature meter 04 (T04), the temperature meter 05 (T05), the temperature meter 06 (T06) and the temperature meter 07 (T07), and the efficiency of the cold-heat exchange can be further improved, thereby further achieving the purpose of energy saving and consumption reduction.

Example three.

In fig. 1, 2 and 3, an energy-saving wastewater treatment system adopting the invention is composed of a wastewater input system (1), the invention (2), a micro-channel mixing system (3), a high-pressure gas source system (4), a heating system (5), a reaction system (6) and a gas-liquid separation system (7); the method is characterized in that: the right end of the waste water input system (1) is connected with the left end of the device (2); the lower end of the invention (2) is connected with the left end of the micro-channel mixing system (3); the lower end of the micro-channel mixing system (3) is connected with the upper end of the high-pressure air source system (4); the right end of the micro-channel mixing system (3) is connected with the left end of the heating system (5); the upper end of the heating system (5) is connected with the lower end of the reaction system (6); the upper end of the reaction system (6) is connected with the right end of the reactor (2); the upper end of the invention (2) is connected with the lower end of a gas-liquid separation system (7).

IN fig. 1 and 2, the wastewater input system (1) includes input wastewater (IN), a valve 01 (FM 01), a valve 02 (FM 02), a buffer tank (Q01), a thermometer 01 (T01), a valve 03 (FM 03), a filter 1 (GLQ 1), a high pressure pump (GYB), a pressure gauge 01 (Y01), a filter 2 (GLQ 2), and a flow meter 1 (S01); the method is characterized in that: the input wastewater (IN) is connected with the left end of the valve 01 (FM 01); the right end of the valve 01 (FM 01) is connected with the upper end of the valve 02 (FM 02); the left end of the valve 02 (FM 02) is connected with the upper part of the buffer tank (Q01), and the lower end of the valve is connected with the lower part of the buffer tank (Q01); the middle part of the buffer tank (Q01) is provided with a thermometer 01 (T01), and the middle lower end of the buffer tank (Q01) is connected with the upper end of a valve 03 (FM 03); the lower end of the valve 03 (FM 03) is connected with the upper end of the filter 1 (GLQ 1); the lower end of the filter 1 (GLQ 1) is connected with the upper end of a high-pressure pump (GYB); the right end of the high-pressure pump (GYB) is connected with the lower end of a pressure gauge 01 (Y01) and the left end of a filter 2 (GLQ 2); the right end of the filter 2 (GLQ 2) is connected to the lower end of the flowmeter 1 (S01).

In fig. 1 and 2, the invention (2) comprises a preheating heat exchanger (HRQ 1), a temperature table 02 (T02), a temperature table 03 (T03), a temperature table 04 (T04), a temperature table 05 (T05), a temperature table 06 (T06), and a temperature table 07 (T07); the method is characterized in that: the left lower end of the preheating heat exchanger (HRQ 1) is connected with the upper end of a flow meter 1 (S01) of the wastewater input system (1), and the right lower end of the preheating heat exchanger is connected with the upper end of a valve 04 (FM 04) of the micro-channel mixing system (3); the upper left end of the preheating heat exchanger (HRQ 1) is connected with the upper left part of the gas-liquid separation system (7), and the upper right end of the preheating heat exchanger is connected with the left end of a valve 10 (FM 10) of the reaction system (6); the temperature meter 02 (T02), the temperature meter 03 (T03), the temperature meter 04 (T04), the temperature meter 05 (T05), the temperature meter 06 (T06) and the temperature meter 07 (T07) are uniformly distributed at the upper end of the preheating heat exchanger (HRQ 1).

In fig. 1 and 2, the invention (2) comprises a preheating heat exchanger (HRQ 1), a temperature table 02 (T02), a temperature table 03 (T03), a temperature table 04 (T04), a temperature table 05 (T05), a temperature table 06 (T06), and a temperature table 07 (T07); the method is characterized in that: when the invention (2) works, the temperature meter 02 (T02) is 1-28 ℃, the temperature meter 03 (T03) is 3-58 ℃, the temperature meter 04 (T04) is 10-68 ℃, the temperature meter 05 (T05) is 20-78 ℃, the temperature meter 06 (T06) is 30-88 ℃ and the temperature meter 07 (T07) is 50-188 ℃.

In fig. 3, the preheat exchanger (HRQ 1) of the present invention (2) includes a communicating pipe Fx (HR 01), a liquid chamber F (HR 02), a conducting pipe FEs (HR 03), a fin bellows E (HR 03), a conducting pipe 03 (HR 03), a fin bellows D (HR 03), a conducting pipe DC (HR 03), a fin bellows C (HR 03), a conducting pipe CB (HR 03), a fin bellows B (HR 03), a conducting pipe BA (HR 03), a fin bellows a (HR 03), a conducting pipe Ax (HR 03), a communicating pipe As (HR 03), a liquid chamber a (HR 03), a communicating pipe ABx (HR 03), a liquid chamber B (HR 03), a communicating pipe BCs (HR 03), a liquid chamber C (HR 03), a communicating pipe 03 (HR 03), a liquid chamber D (HR 03), a communicating pipe 03 (HR 03), a liquid chamber E (HR 03), a conducting pipe HR 03), a fin bellows (HR 03), a conducting pipe HR03 (HR 03), a fin bellows (HR 03), and a fin (36fs); the method is characterized in that: communication pipe Fx (HR 01) communicates with liquid chamber F (HR 02); the liquid chamber F (HR 02) is communicated with a conduction tube FEs (HR 03); the conduction pipe FEs (HR 03) is communicated with the fin corrugated pipe E (HR 04); the fin bellows E (HR 04) is communicated with a conduction pipe EDx (HR 05); the conduction pipe EDx (HR 05) is communicated with a fin corrugated pipe D (HR 06); the fin bellows D (HR 06) is communicated with a conduction pipe DC (HR 07); the conducting pipe DC (HR 07) is communicated with a fin corrugated pipe C (HR 08); the fin corrugated pipe C (HR 08) is communicated with a conduction pipe CB (HR 09); the conduction pipe CB (HR 09) is communicated with the fin corrugated pipe B (HR 10); the fin bellows B (HR 10) is communicated with a conduction pipe BA (HR 11); the conduction pipe BA (HR 11) is communicated with the fin corrugated pipe A (HR 12); the fin corrugated pipe A (HR 12) is communicated with a conduction pipe Ax (HR 13); the communicating pipe As (HR 14) is communicated with the liquid chamber A (HR 15); the liquid chamber A (HR 15) is communicated with a communicating pipe ABx (HR 16); the communicating pipe ABx (HR 16) is communicated with the liquid chamber B (HR 17); the liquid chamber B (HR 17) is communicated with communicating pipes BCs (HR 18); the communicating pipe BCs (HR 18) is communicated with the liquid chamber C (HR 19), and the liquid chamber C (HR 19) is communicated with the communicating pipe CDx (HR 20); the communicating pipe CDx (HR 20) is communicated with the liquid chamber D (HR 21); the liquid chamber D (HR 21) communicates with a communicating tube DEs (HR 22); the communicating pipe DEs (HR 22) is communicated with the liquid chamber E (HR 23); the liquid chamber E (HR 23) is communicated with a conduction pipe EFx (HR 24); the conduction pipe EFx (HR 24) is communicated with a fin corrugated pipe F (HR 25); the fin bellows F (HR 25) communicates with a conduction tube Fs (HR 26).

In fig. 3, the preheat exchanger (HRQ 1) of the present invention (2) is further characterized by: the communicating pipe Fx (HR 01), the liquid cavity F (HR 02), the conducting pipe FEs (HR 03), the fin corrugated pipe E (HR 04), the conducting pipe EDx (HR 05), the fin corrugated pipe D (HR 06), the conducting pipe DC (HR 07), the fin corrugated pipe C (HR 08), the conducting pipe CB (HR 09), the fin corrugated pipe B (HR 10), the conducting pipe BA (HR 11), the fin corrugated pipe A (HR 12) and the conducting pipe Ax (HR 13) form a normal-temperature wastewater channel; the high-temperature gas-liquid channel is formed by the communicating pipe As (HR 14), a liquid cavity A (HR 15), the communicating pipe ABx (HR 16), a liquid cavity B (HR 17), the communicating pipe BCs (HR 18), the liquid cavity C (HR 19), the communicating pipe CDx (HR 20), the liquid cavity D (HR 21), the communicating pipe DEs (HR 22), the liquid cavity E (HR 23), the conducting pipe EFx (HR 24), the fin corrugated pipe F (HR 25) and the conducting pipe Fs (HR 26); the normal-temperature wastewater channel and the high-temperature gas-liquid channel are mutually penetrated and interacted; the normal-temperature wastewater channel has a gradual cooling effect on the high-temperature gas-liquid channel, and the high-temperature gas-liquid channel has a gradual heating effect on the normal-temperature wastewater channel.

In fig. 3, the preheat exchanger (HRQ 1) of the present invention (2) is further characterized by: the normal-temperature wastewater channel has six stages for gradually cooling the high-temperature gas-liquid channel; the first stage comprises a communicating pipe Fx (HR 01) of a normal-temperature wastewater channel, a liquid chamber F (HR 02), a conducting pipe FEs (HR 03), a conducting pipe EFx (HR 24) of a high-temperature gas-liquid channel, a fin corrugated pipe F (HR 25) and a conducting pipe Fs (HR 26), wherein the fin corrugated pipe F (HR 25) of the high-temperature gas-liquid channel penetrates through the liquid chamber F (HR 02) of the normal-temperature wastewater channel, the fin corrugated pipe F (HR 25) is wrapped in the liquid chamber F (HR 02), the volume of the liquid chamber F (HR 02) is 3-30 times of that of the fin corrugated pipe F (HR 25), and the liquid chamber F (HR 02) of the normal-temperature wastewater channel can generate a great cooling effect on the fin F (HR 25) of the high-temperature gas-liquid channel; the second stage consists of a conduction pipe FEs (HR 03), a fin corrugated pipe E (HR 04), a conduction pipe EDx (HR 05), a communication pipe DEs (HR 22) of a high-temperature gas-liquid channel, a liquid chamber E (HR 23) and a conduction pipe EFx (HR 24) of the normal-temperature wastewater channel, wherein the fin corrugated pipe E (HR 04) of the high-temperature wastewater channel penetrates through the liquid chamber E (HR 23) of the high-temperature gas-liquid channel, the volume of the liquid chamber E (HR 23) is 3-30 times of that of the fin corrugated pipe E (HR 04), and the fin corrugated pipe E (HR 04) of the high-temperature wastewater channel can generate certain cooling effect and effect on the liquid chamber E (HR 23) of the high-temperature gas-liquid channel; in the third stage, the device consists of a conduction pipe EDx (HR 05) of a normal-temperature wastewater channel, a fin corrugated pipe D (HR 06), a conduction pipe DC (HR 07), a communicating pipe CDx (HR 20) of a high-temperature gas-liquid channel, a liquid chamber D (HR 21) and a communicating pipe DEs (HR 22), wherein the fin corrugated pipe D (HR 06) of the normal-temperature wastewater channel penetrates through the liquid chamber D (HR 21) of the high-temperature gas-liquid channel, the volume of the liquid chamber D (HR 21) is 3-30 times of that of the fin corrugated pipe D (HR 06), and the fin corrugated pipe D (HR 06) of the normal-temperature wastewater channel can generate certain cooling effect and effect on the liquid chamber D (HR 21) of the high-temperature gas-liquid channel; the fourth stage consists of a conduction pipe DC (HR 07), a fin corrugated pipe C (HR 08), a conduction pipe CB (HR 09), a communication pipe BCs (HR 18) of a high-temperature gas-liquid channel, a liquid chamber C (HR 19) and a communication pipe CDx (HR 20) of the normal-temperature wastewater channel, wherein the fin corrugated pipe C (HR 08) of the normal-temperature wastewater channel penetrates through the liquid chamber C (HR 19) of the high-temperature gas-liquid channel, the volume of the liquid chamber C (HR 19) is 3-30 times of that of the fin corrugated pipe C (HR 08), and the fin corrugated pipe C (HR 08) of the normal-temperature wastewater channel can generate certain cooling effect and effect on the liquid chamber C (HR 19) of the high-temperature gas-liquid channel; the fifth stage is composed of a conduction pipe CB (HR 09), a fin corrugated pipe B (HR 10), a conduction pipe BA (HR 11), a communicating pipe ABx (HR 16), a liquid chamber B (HR 17) and a communicating pipe BCs (HR 18) of a high-temperature gas-liquid channel, wherein the fin corrugated pipe B (HR 10) of the normal-temperature wastewater channel penetrates through the liquid chamber B (HR 17) of the high-temperature gas-liquid channel, the volume of the liquid chamber B (HR 17) is 3-30 times of that of the fin corrugated pipe B (HR 10), and the fin corrugated pipe B (HR 10) of the normal-temperature wastewater channel can generate certain cooling effect and effect on the liquid chamber B (HR 17) of the high-temperature gas-liquid channel; the sixth stage consists of a conduction pipe BA (HR 11), a fin corrugated pipe A (HR 12), a conduction pipe Ax (HR 13), a communicating pipe As (HR 14) of a high-temperature gas-liquid channel, a liquid chamber A (HR 15) and a communicating pipe ABx (HR 16) of the normal-temperature wastewater channel, wherein the fin corrugated pipe A (HR 12) of the normal-temperature wastewater channel penetrates through the liquid chamber A (HR 15) of the high-temperature gas-liquid channel, the volume of the liquid chamber A (HR 15) is 3-30 times of that of the fin corrugated pipe A (HR 12), and the fin corrugated pipe A (HR 12) of the normal-temperature wastewater channel can generate certain cooling effect and effect on the liquid chamber A (HR 15) of the high-temperature gas-liquid channel;

in fig. 3, the preheat exchanger (HRQ 1) of the present invention (2) is further characterized by: the high-temperature gas-liquid channel gradually heats the normal-temperature wastewater channel in six stages; the first stage comprises a communicating pipe As (HR 14), a liquid chamber A (HR 15), a communicating pipe ABx (HR 16), a conducting pipe BA (HR 11) of a normal-temperature wastewater channel, a fin corrugated pipe A (HR 12) and a conducting pipe Ax (HR 13), wherein the fin corrugated pipe A (HR 12) of the normal-temperature wastewater channel is wrapped in the liquid chamber A (HR 15) of the high-temperature gas-liquid channel, the volume of the liquid chamber A (HR 15) is 3-30 times of that of the fin corrugated pipe A (HR 12), and the liquid chamber A (HR 15) can generate certain heating effect and effect on the fin corrugated pipe A (HR 12); the second stage consists of a communicating pipe ABx (HR 16), a liquid chamber B (HR 17), communicating pipes BCs (HR 18), a conducting pipe CB (HR 09), a fin corrugated pipe B (HR 10) and a conducting pipe BA (HR 11) of a normal-temperature wastewater channel, wherein the fin corrugated pipe B (HR 10) of the normal-temperature wastewater channel is wrapped in the liquid chamber B (HR 17) of the high-temperature gas-liquid channel, the volume of the liquid chamber B (HR 17) is 3-30 times of that of the fin corrugated pipe B (HR 10), and the liquid chamber B (HR 17) can generate certain heating effect and effect on the fin corrugated pipe B (HR 10); the third stage is composed of a communicating pipe BCs (HR 18), a liquid chamber C (HR 19), a communicating pipe CDx (HR 20), a conducting pipe DC (HR 07), a fin corrugated pipe C (HR 08) and a conducting pipe CB (HR 09) of a normal-temperature wastewater channel, wherein the fin corrugated pipe C (HR 08) of the normal-temperature wastewater channel is wrapped in the liquid chamber C (HR 19) of the high-temperature gas-liquid channel, the volume of the liquid chamber C (HR 19) is 3-30 times of that of the fin corrugated pipe C (HR 08), and the liquid chamber C (HR 19) can generate certain heating effect and effect on the fin corrugated pipe C (HR 08); the fourth stage is composed of a communicating pipe CDx (HR 20) of a high-temperature gas-liquid channel, a liquid chamber D (HR 21), a communicating pipe DEs (HR 22), a conducting pipe EDx (HR 05) of a normal-temperature wastewater channel, a fin corrugated pipe D (HR 06) and a conducting pipe DC (HR 07), wherein the fin corrugated pipe D (HR 06) of the normal-temperature wastewater channel is wrapped in the liquid chamber D (HR 21) of the high-temperature gas-liquid channel, the volume of the liquid chamber D (HR 21) is 3-30 times of that of the fin corrugated pipe D (HR 06), and the liquid chamber D (HR 21) can generate certain heating effect and effect on the fin corrugated pipe D (HR 06); the fifth stage is composed of a communicating pipe DEs (HR 22) of a high-temperature gas-liquid channel, a liquid chamber E (HR 23), a conducting pipe EFx (HR 24), a conducting pipe FEs (HR 03) of a normal-temperature wastewater channel, a fin corrugated pipe E (HR 04) and a conducting pipe EDx (HR 05), wherein the fin corrugated pipe E (HR 04) of the normal-temperature wastewater channel is wrapped in the liquid chamber E (HR 23) of the high-temperature gas-liquid channel, the volume of the liquid chamber E (HR 23) is 3-30 times of that of the fin corrugated pipe E (HR 04), and the liquid chamber E (HR 23) can generate certain heating effect and effect on the fin corrugated pipe E (HR 04); the sixth stage is composed of a conducting pipe EFx (HR 24) of a high-temperature gas-liquid channel, a fin corrugated pipe F (HR 25), a communicating pipe Fx (HR 01) of a conducting pipe Fs (HR 26) and a normal-temperature wastewater channel, a liquid chamber F (HR 02) and a conducting pipe FEs (HR 03), wherein the fin corrugated pipe F (HR 25) of the high-temperature gas-liquid channel penetrates through the liquid chamber F (HR 02) of the normal-temperature wastewater channel, the volume of the liquid chamber F (HR 02) is 3-30 times of that of the fin corrugated pipe F (HR 25), and the fin corrugated pipe F (HR 25) can generate certain heating effect and effect on the liquid chamber F (HR 02).

In fig. 3, the preheat exchanger (HRQ 1) of invention (2) includes liquid chamber F (HR 02), liquid chamber a (HR 15), liquid chamber B (HR 17), liquid chamber C (HR 19), liquid chamber D (HR 21), liquid chamber E (HR 23); it is also characterized in that: when the invention (2) works, the optimal temperatures of the liquid chamber F (HR 02), the liquid chamber A (HR 15), the liquid chamber B (HR 17), the liquid chamber C (HR 19), the liquid chamber D (HR 21) and the liquid chamber E (HR 23) are as follows: the temperature table 02 (T02) is 1-28 (15-38), the temperature table 03 (T03) is 3-58 (45-65), the temperature table 04 (T04) is 10-68 (75-95), the temperature table 05 (T05) is 20-78 (105-125), the temperature table 06 (T06) is 30-88 (136-155), and the temperature table 07 (T07) is 50-188 (165-185).

In fig. 1 and 2, the microchannel mixing system (3) comprises a valve 04 (FM 04), a valve 05 (FM 05), a microchannel mixer (WTDHHQ), and a valve 07 (FM 07); the method is characterized in that: the upper end of the valve 04 (FM 04) is connected with a preheating heat exchanger (HRQ 1) of the invention (2); the lower end of the valve 04 (FM 04) is connected with the left end of the valve 05 (FM 05), and the right end of the valve is connected with the left end of the micro-channel mixer (WDHHQ); the upper left end of the micro-channel mixer (WTDHQ) is connected with a flowmeter 2 (S02) of a high-pressure air source system (4); the right end of the micro-channel mixer (WDHHQ) is connected with the left end of a valve 07 (FM 07), and the right end of the valve 07 (FM 07) is connected with a heating heat exchanger (HRQ 2) of the heating system (5).

The high-pressure air source system (4) comprises an air compressor (KYJ), a valve 06 (FM 06), an air compressing tank (Q02), a pressure gauge 02 (Y02) and a flow meter 2 (S02); the method is characterized in that: the speed of the air compressor (KYJ) is connected with the right end of the valve 06 (FM 06); the left end of the valve 06 (FM 06) is connected with the lower left part of the air compression tank (Q02); the left end of the upper part of the air pressing tank (Q02) is provided with a pressure gauge 02 (Y02), and the left end of the lower part is connected with the upper end of the flowmeter 2 (S02); the lower end of the flow meter 2 (S02) is connected to the upper left end of the microchannel mixer (WTDHHQ) of the microchannel mixing system (3).

The heating system (5) comprises a heating heat exchanger (HRQ 2), a temperature controller (KWQ) and a temperature meter 08 (T08); the method is characterized in that: the left end of the heating heat exchanger (HRQ 2) is connected with a valve 07 (FM 07) of the micro-channel mixing system (3); the upper right end device of the heating heat exchanger (HRQ 2) is provided with a thermometer 08 (T08); the right end of the heating heat exchanger (HRQ 2) is connected with a valve 08 (FM 08) of the reaction system (6), and the lower end is connected with the upper end of a temperature controller (KWQ).

The reaction system (6) comprises a valve 08 (FM 08), a reaction tower (Q03), a pressure gauge 03 (Y03), a temperature gauge 09 (T09), a catalyst (CHJ 01), a pressure gauge 04 (Y04), a temperature gauge 10 (T10), a valve 09 (FM 09), a pressure gauge 05 (Y05) and a valve 10 (FM 10); the method is characterized in that: the middle lower end of the reaction tower (Q03) is provided with a valve 08 (FM 08); the lower end of the valve 08 (FM 08) is connected with a heating system (5) comprising a heating heat exchanger (HRQ 2); the middle part of the reaction tower (Q03) is provided with a catalyst (CHJ 01) input channel connected with a catalyst (CHJ 01); the middle lower part of the reaction tower (Q03) is provided with a pressure gauge 03 (Y03) and a thermometer 09 (T09); the middle upper part of the reaction tower (Q03) is provided with a pressure gauge 04 (Y04) and a thermometer 10 (T10); the upper middle end of the reaction tower (Q03) is connected with a valve 09 (FM 09), a pressure gauge 05 (Y05) and a valve 10 (FM 10), and the left end of the valve 10 (FM 10) is connected with a preheating heat exchanger (HRQ 1) of the invention (2).

The gas-liquid separation system (7) comprises a gas-liquid separation tank (Q04), a thermometer 11 (T11), a pressure gauge 06 (Y06), a valve 11 (FM 11), a valve 12 (FM 12), a water washing spray tower (SXPLT) and discharged water (UOT): the method is characterized in that: the left upper part of the gas-liquid separation tank (Q04) is connected with a preheating heat exchanger (HRQ 1) of the invention (2), and the right middle part is provided with a thermometer 11 (T11); the middle upper part of the gas-liquid separation tank (Q04) is connected with a pressure gauge 06 (Y06) and a valve 12 (FM 12), and the right end of the valve 12 (FM 12) is connected with a water washing spray tower (SXPLT); the middle-lower part of the gas-liquid separation tank (Q04) is connected with a valve 11 (FM 11), and the right end of the valve 11 (FM 11) is provided with discharged water (UOT).

In FIG. 2, a valve 03 (FM 03) of the wastewater input system is adjusted to control the flow rate of the wastewater input system, so that the flow rate of a flow meter 1 (S01) of the wastewater input system (1) is recorded when a temperature meter 02 (T02) of a preheating heat exchanger (HRQ 1) is 1-28 (15-38), a temperature meter 03 (T03) is 3-58 (45-65), a temperature meter 04 (T04) is 10-68 (75-95), a temperature meter 05 (T05) is 20-78 (105-125), a temperature meter 06 (T06) is 30-88 (136-155), and a temperature meter 07 (T07) is 50-188 (165-185); recording a pressure value of a pressure gauge 02 (Y02) of the high-pressure air source system (4) and a flow value of the flowmeter 2 (S02); recording the temperature value of a temperature meter 08 (T08) on a heating heat exchanger (HRQ 2), the setting parameters and the display parameters of a temperature controller (KWQ) of the heating system (5); recording the pressure values of a pressure gauge 03 (Y03), a pressure gauge 04 (Y04) and a pressure gauge 05 (Y05) and the temperature values of a temperature gauge 09 (T09) and a temperature gauge 10 (T10) of the reaction system (6); recording the temperature value of a thermometer 11 (T11) and the pressure value of a pressure gauge 06 (Y06) of a gas-liquid separation system (7); and archiving the recorded flow value, temperature value and pressure value for later use.

Example four.

In fig. 1, 2 and 3, an energy-saving wastewater treatment system adopting the invention is composed of a wastewater input system (1), the invention (2), a micro-channel mixing system (3), a high-pressure gas source system (4), a heating system (5), a reaction system (6) and a gas-liquid separation system (7); the right end of the waste water input system (1) is connected with the left end of the device (2); the lower end of the invention (2) is connected with the left end of the micro-channel mixing system (3); the lower end of the micro-channel mixing system (3) is connected with the upper end of the high-pressure air source system (4); the right end of the micro-channel mixing system (3) is connected with the left end of the heating system (5); the upper end of the heating system (5) is connected with the lower end of the reaction system (6); the upper end of the reaction system (6) is connected with the right end of the reactor (2); the upper end of the invention (2) is connected with the lower end of a gas-liquid separation system (7); when the wastewater to be treated is input into the invention (2) through the wastewater input system (1); the wastewater is supplied to a micro-channel mixing system (3) through a wastewater channel of the invention (2), the micro-channel mixing system (3) mixes the wastewater with high-pressure gas of a high-pressure gas source system (4), and cuts the wastewater into high-pressure gas liquid through a micro-channel, the high-pressure gas liquid is input to a heating system (5) for heating, and the heating system (5) conveys the heated high-pressure gas liquid to a reaction system (6); the reaction system (6) supplies high-pressure gas-liquid after the mixing reaction of the high-pressure gas-liquid and the catalyst to the invention (2), and the high-pressure gas-liquid output by the reaction system (6) is mutually cooled by the high-temperature channel of the invention (2) and the wastewater channel of the invention (2) and then supplied to the gas-liquid separation system (7) for gas-liquid separation; the separated gas is flushed by water and then discharged into the air; the liquid after gas-liquid separation is discharged to the ground after reaching the standard; the method is characterized in that: the preheating heat exchanger (HRQ 1) of the invention (2) is provided with 6 liquid chambers, 1 vacuum chamber, 6 thermometers, and the 6 liquid chambers are combined into a normal-temperature wastewater channel and a high-temperature gas-liquid channel; the high-temperature gas-liquid channels of the 6 liquid chambers can gradually cool the high-temperature gas-liquid of the reaction system (6) from high to low to required 12-36 ℃ under the mutual inductance action with the normal-temperature wastewater channel (replacing the traditional special cooling device), and meanwhile, the normal-temperature wastewater channels of the 6 liquid chambers can gradually and gradually preheat normal-temperature wastewater from normal temperature to high temperature of 48-100 ℃ under the mutual inductance action with the high-temperature gas-liquid channels, supply the wastewater to the micro-channel mixing system (3) and transfer the wastewater to the heating system (5) for heating, so that the heating system (5) can rapidly heat and save heating energy; the 6 thermometers are respectively arranged at the middle upper ends of the 6 liquid chambers and used for observing the temperature states of the 6 liquid chambers and providing relevant temperature information for the control temperature of the heating system (5) and the control flow of the wastewater input system (1).

In fig. 1, 2 and 3, (an energy saving control method 1) sets the flow rate of the wastewater input system (1) at 300-.

The valve 01 (FM 01) is a manual rotary valve; the valve 02 (FM 02) is a liquid level automatic valve; the buffer tank (Q01) is a low-pressure vertical glass fiber reinforced plastic water storage tank; thermometer 01 (T01) is a mechanical pointer thermometer; the valve 03 (FM 03) is a manual rotary valve; the filter 1 (GLQ 1) is a 100-80 mesh filter; the high-pressure pump (GYB) is a 5-11 stage multi-stage pump; the pressure gauge 01 (Y01) is a mechanical pointer pressure gauge; the filter 2 (GLQ 2) is a 200-160-mesh filter; the flow meter 1 (S01) is a real-time online flow meter.

The thermometer 02 (T02), the thermometer 03 (T03), the thermometer 04 (T04), the thermometer 05 (T05), the thermometer 06 (T06) and the thermometer 07 (T07) are mechanical pointer thermometers.

In fig. 1 and 2, the invention (2) comprises a preheating heat exchanger (HRQ 1), a temperature table 02 (T02), a temperature table 03 (T03), a temperature table 04 (T04), a temperature table 05 (T05), a temperature table 06 (T06), and a temperature table 07 (T07); the method is characterized in that: the temperature table 02 (T02) is 1-28 ℃, the temperature table 03 (T03) is 3-58 ℃, the temperature table 04 (T04) is 10-68 ℃, the temperature table 05 (T05) is 20-78 ℃, the temperature table 06 (T06) is 30-88 ℃ and the temperature table 07 (T07) is 50-188 ℃ when the temperature-adjustable water heater works.

The three-dimensional dimensions of the preheat exchanger (HRQ 1) of the invention (2) are: the length is 100-300cm, the width is 50-180cm, and the height is 80-275 cm.

The sizes of a liquid chamber F (HR 02), a liquid chamber A (HR 15), a liquid chamber B (HR 17), a liquid chamber C (HR 19), a liquid chamber D (HR 21) and a liquid chamber E (HR 23) of the preheating heat exchanger (HRQ 1) of the invention (2) are as follows: the length is 100-300cm, the width is 15-30cm, and the height is 80-275 cm.

The dimensions of the vacuum chamber (HR 27) of the preheat exchanger (HRQ 1) are: the length is 10-28cm, the width is 50-180cm, and the height is 80-275 cm.

The structure sizes of a fin corrugated pipe E (HR 04), a fin corrugated pipe D (HR 06), a fin corrugated pipe C (HR 08), a fin corrugated pipe B (HR 10), a fin corrugated pipe A (HR 12) and a fin corrugated pipe F (HR 25) of the preheating heat exchanger (HRQ 1) are as follows: the diameter of the radiating fin is 2.5-5.5cm, the thickness of the radiating fin is 0.05-0.12cm, the inner diameter of the through pipe is 1.8-3.8cm, and the wall thickness of the through pipe is 0.5-1.5 mm.

The fin corrugated pipe E (HR 04) of the preheating heat exchanger (HRQ 1) is made of the following materials: the water-resistant, rust-proof and heat-dissipating material is preferably a metal material or an alloy material having excellent heat-dissipating performance.

In fig. 3, the preheat exchanger (HRQ 1) of the present invention (2) is further characterized by: the normal-temperature wastewater channel has six stages for gradually cooling the high-temperature gas-liquid channel; the first stage comprises a communicating pipe Fx (HR 01) of a normal-temperature wastewater channel, a liquid chamber F (HR 02), a conducting pipe FEs (HR 03), a conducting pipe EFx (HR 24) of a high-temperature gas-liquid channel, a fin corrugated pipe F (HR 25) and a conducting pipe Fs (HR 26), wherein the fin corrugated pipe F (HR 25) of the high-temperature gas-liquid channel penetrates through the liquid chamber F (HR 02) of the normal-temperature wastewater channel, the fin corrugated pipe F (HR 25) is wrapped in the liquid chamber F (HR 02), the volume of the liquid chamber F (HR 02) is 3-30 times of that of the fin corrugated pipe F (HR 25), and the liquid chamber F (HR 02) of the normal-temperature wastewater channel can generate a great cooling effect on the fin F (HR 25) of the high-temperature gas-liquid channel; the second stage consists of a conduction pipe FEs (HR 03), a fin corrugated pipe E (HR 04), a conduction pipe EDx (HR 05), a communication pipe DEs (HR 22) of a high-temperature gas-liquid channel, a liquid chamber E (HR 23) and a conduction pipe EFx (HR 24) of the normal-temperature wastewater channel, wherein the fin corrugated pipe E (HR 04) of the high-temperature wastewater channel penetrates through the liquid chamber E (HR 23) of the high-temperature gas-liquid channel, the volume of the liquid chamber E (HR 23) is 3-30 times of that of the fin corrugated pipe E (HR 04), and the fin corrugated pipe E (HR 04) of the high-temperature wastewater channel can generate certain cooling effect and effect on the liquid chamber E (HR 23) of the high-temperature gas-liquid channel; in the third stage, the device consists of a conduction pipe EDx (HR 05) of a normal-temperature wastewater channel, a fin corrugated pipe D (HR 06), a conduction pipe DC (HR 07), a communicating pipe CDx (HR 20) of a high-temperature gas-liquid channel, a liquid chamber D (HR 21) and a communicating pipe DEs (HR 22), wherein the fin corrugated pipe D (HR 06) of the normal-temperature wastewater channel penetrates through the liquid chamber D (HR 21) of the high-temperature gas-liquid channel, the volume of the liquid chamber D (HR 21) is 3-30 times of that of the fin corrugated pipe D (HR 06), and the fin corrugated pipe D (HR 06) of the normal-temperature wastewater channel can generate certain cooling effect and effect on the liquid chamber D (HR 21) of the high-temperature gas-liquid channel; the fourth stage consists of a conduction pipe DC (HR 07), a fin corrugated pipe C (HR 08), a conduction pipe CB (HR 09), a communication pipe BCs (HR 18) of a high-temperature gas-liquid channel, a liquid chamber C (HR 19) and a communication pipe CDx (HR 20) of the normal-temperature wastewater channel, wherein the fin corrugated pipe C (HR 08) of the normal-temperature wastewater channel penetrates through the liquid chamber C (HR 19) of the high-temperature gas-liquid channel, the volume of the liquid chamber C (HR 19) is 3-30 times of that of the fin corrugated pipe C (HR 08), and the fin corrugated pipe C (HR 08) of the normal-temperature wastewater channel can generate certain cooling effect and effect on the liquid chamber C (HR 19) of the high-temperature gas-liquid channel; the fifth stage is composed of a conduction pipe CB (HR 09), a fin corrugated pipe B (HR 10), a conduction pipe BA (HR 11), a communicating pipe ABx (HR 16), a liquid chamber B (HR 17) and a communicating pipe BCs (HR 18) of a high-temperature gas-liquid channel, wherein the fin corrugated pipe B (HR 10) of the normal-temperature wastewater channel penetrates through the liquid chamber B (HR 17) of the high-temperature gas-liquid channel, the volume of the liquid chamber B (HR 17) is 3-30 times of that of the fin corrugated pipe B (HR 10), and the fin corrugated pipe B (HR 10) of the normal-temperature wastewater channel can generate certain cooling effect and effect on the liquid chamber B (HR 17) of the high-temperature gas-liquid channel; the sixth stage comprises a conduction pipe BA (HR 11), a fin corrugated pipe A (HR 12), a conduction pipe Ax (HR 13), a communicating pipe As (HR 14) of a high-temperature gas-liquid channel, a liquid chamber A (HR 15) and a communicating pipe ABx (HR 16) of the normal-temperature waste water channel, wherein the fin corrugated pipe A (HR 12) of the normal-temperature waste water channel penetrates through the liquid chamber A (HR 15) of the high-temperature gas-liquid channel, the volume of the liquid chamber A (HR 15) is 3-30 times of that of the fin corrugated pipe A (HR 12), and the fin corrugated pipe A (HR 12) of the normal-temperature waste water channel can generate certain cooling effect and effect on the liquid chamber A (HR 15) of the high-temperature gas-liquid channel.

A valve 04 (FM 04), a valve 05 (FM 05), a microchannel mixer (WDHHQ), a valve 07 (FM 07) of the microchannel mixing system (3);

the valve 04 (FM 04) is a one-way check valve; the valves 05 (FM 05) and 07 (FM 07) are manual rotary valves; the microchannel mixer (WTDHHQ) is a honeycomb microchannel mixing system, the honeycomb density being: 75-50 meshes.

The output air pressure of an air compressor (KYJ) of the high-pressure air source system (4) is 0.5-10MP, and the continuous flow rate is 200 & lt- & gt 500 Nm 3/h; the valve 06 (FM 06) is a manual rotary valve; the pressure gas tank (Q02) has a capacity of 2-3 m^3，The pressure resistance is more than or equal to 20MP, and the pressure gauge 02 (Y02) is a mechanical pointer pressure gauge; the flow meter 2 (S02) is: an electromagnetic flow meter.

The heating heat exchanger (HRQ 2) is an electric oil furnace heat exchanger; the temperature controller (KWQ) is a meter type resistance temperature controller; the thermometer 08 (T08) is a pointer thermometer.

The valve 08 (FM 08) of the reaction system (6) is a one-way check valve; the reaction tower (Q03) is a vertical reaction kettle; the pressure gauge 03 (Y03) and the pressure gauge 04 (Y04) are pointer type pressure gauges; the thermometer 09 (T09) and the thermometer 10 (T10) are pointer thermometers; the catalyst (CHJ 01) is activated carbon loaded titanium dioxide and palladium, and the loading amount is 1.5-2.8%; the valve 09 (FM 09) is a safety valve; the pressure gauge 05 (Y05) is a pointer type pressure gauge; the valve 10 (FM 10) is a pneumatic automatic valve.

The gas-liquid separation tank (Q04) is a vertical gas-liquid separation tank with the capacity of 2-3 m^3，The withstand voltage is more than or equal to 20 MP; the thermometer 11 (T11) is a mechanical pointer thermometer; the pressure gauge 06 (Y06) is a mechanical pointer pressure gauge; the valves 11 (FM 11) and 12 (FM 12) are automatic pressure valves; the water washing spray tower (SXPLT) is a water spraying air purifying device; the discharged water (UOT) is water that has been subjected to gas-liquid separation and that meets discharge standards.

Example five.

In fig. 1, 2 and 3, the invention is composed of a wastewater input system (1), an invention (2), a micro-channel mixing system (3), a high-pressure gas source system (4), a heating system (5), a reaction system (6) and a gas-liquid separation system (7); the right end of the waste water input system (1) is connected with the left end of the device (2); the lower end of the invention (2) is connected with the left end of the micro-channel mixing system (3); the lower end of the micro-channel mixing system (3) is connected with the upper end of the high-pressure air source system (4); the right end of the micro-channel mixing system (3) is connected with the left end of the heating system (5); the upper end of the heating system (5) is connected with the lower end of the reaction system (6); the upper end of the reaction system (6) is connected with the right end of the reactor (2); the upper end of the invention (2) is connected with the lower end of a gas-liquid separation system (7); when the wastewater to be treated is input into the invention (2) through the wastewater input system (1); the wastewater is supplied to a micro-channel mixing system (3) through a wastewater channel of the invention (2), the micro-channel mixing system (3) mixes the wastewater with high-pressure gas of a high-pressure gas source system (4), and cuts the wastewater into high-pressure gas liquid through a micro-channel, the high-pressure gas liquid is input to a heating system (5) for heating, and the heating system (5) conveys the heated high-pressure gas liquid to a reaction system (6); the reaction system (6) supplies high-pressure gas-liquid after the mixing reaction of the high-pressure gas-liquid and the catalyst to the invention (2), and the high-pressure gas-liquid output by the reaction system (6) is mutually cooled by the high-temperature channel of the invention (2) and the wastewater channel of the invention (2) and then supplied to the gas-liquid separation system (7) for gas-liquid separation; the separated gas is flushed by water and then discharged into the air; the liquid after gas-liquid separation is discharged to the ground after reaching the standard; the method is characterized in that: the preheating heat exchanger (HRQ 1) of the invention (2) is provided with 6 liquid chambers, 1 vacuum chamber, 6 thermometers, and the 6 liquid chambers are combined into a normal-temperature wastewater channel and a high-temperature gas-liquid channel; the high-temperature gas-liquid channels of the 6 liquid chambers can gradually cool the high-temperature gas-liquid of the reaction system (6) from high to low to required 12-36 ℃ under the mutual inductance action with the normal-temperature wastewater channel (replacing the traditional special cooling device), and meanwhile, the normal-temperature wastewater channels of the 6 liquid chambers can gradually and gradually preheat normal-temperature wastewater from normal temperature to high temperature of 48-100 ℃ under the mutual inductance action with the high-temperature gas-liquid channels, supply the wastewater to the micro-channel mixing system (3) and transfer the wastewater to the heating system (5) for heating, so that the heating system (5) can rapidly heat and save heating energy; the 6 thermometers are respectively arranged at the middle upper ends of the 6 liquid chambers and used for observing the temperature states of the 6 liquid chambers and providing relevant temperature information for the control temperature of the heating system (5) and the control flow of the wastewater input system (1).

In fig. 1, 2 and 3, (an energy saving control method 2) sets the heating power of the heating system (5) to 4.5-5kw, and adjusts the flow rate of the wastewater input system (1) so that the temperature table 02 (T02) is 10-32 ℃, the temperature table 03 (T03) is 36-56 ℃, the temperature table 04 (T04) is 65-85 ℃, the temperature table 05 (T05) is 95-115 ℃, the temperature table 06 (T06) is 125-145 ℃ and the temperature table 07 (T07) is 158-175 ℃.

The structure sizes of a fin corrugated pipe E (HR 04), a fin corrugated pipe D (HR 06), a fin corrugated pipe C (HR 08), a fin corrugated pipe B (HR 10), a fin corrugated pipe A (HR 12) and a fin corrugated pipe F (HR 25) of the preheating heat exchanger (HRQ 1) are as follows: the diameter of the radiating fin is 2.5-5.5cm, the thickness of the radiating fin is 0.05-0.12cm, the inner diameter of the through pipe is 1.8-3.8cm, and the wall thickness of the through pipe is 0.3-2 mm.

The valve 08 (FM 08) of the reaction system (6) is a one-way check valve; the reaction tower (Q03) is a vertical reaction kettle; the pressure gauge 03 (Y03) and the pressure gauge 04 (Y04) are pointer type pressure gauges; the thermometer 09 (T09) and the thermometer 10 (T10) are pointer thermometers; the catalyst (CHJ 01) is activated carbon loaded titanium dioxide and palladium, and the loading amount is 1.5-2.8%; the valve 09 (FM 09) is a safety valve; the pressure gauge 05 (Y05) is a pointer type pressure gauge; the valve 10 (FM 10) is a pneumatic automatic valve;

The gas-liquid separation tank (Q04) is a vertical gas-liquid separation tank with the capacity of 2-3 m^3，The withstand voltage is more than or equal to 20 MP; the thermometer 11 (T11) is a mechanical pointer thermometer; the pressure gauge 06 (Y06) is a mechanical pointer pressure gauge; the valves 11 (FM 11) and 12 (FM 12) are automatic pressure valves; the water washing spray tower (SXPLT) is a water spraying air purifying device; the discharged water (UOT) is obtained after gas-liquid separationAnd discharging standard water.

Claims

1. The invention relates to an energy-saving heat exchange device for wastewater treatment, which comprises a preheating heat exchanger (HRQ 1) and a plurality of thermometers, wherein the preheating heat exchanger is connected with the thermometers; the method is characterized in that: the preheating heat exchanger (HRQ 1) comprises a plurality of liquid chambers, a plurality of conducting pipes, a plurality of communicating pipes and a vacuum chamber (HR 27); the plurality of liquid chambers includes liquid chamber a (HR 15), liquid chamber B (HR 17), liquid chamber C (HR 19), liquid chamber D (HR 21), liquid chamber E (HR 23), liquid chamber F (HR 02); the plurality of thermometers comprises thermometer 02 (T02), thermometer 03 (T03), thermometer 04 (T04), thermometer 05 (T05), thermometer 06 (T06), and thermometer 07 (T07); the plurality of thermometers are respectively arranged on the plurality of liquid chambers.

2. The energy-saving heat exchange device for wastewater treatment according to claim 1, characterized in that: a fin corrugated pipe A (HR 12) is arranged in the liquid cavity A (HR 15), a fin corrugated pipe B (HR 10) is arranged in the liquid cavity B (HR 17), a fin corrugated pipe C (HR 08) is arranged in the liquid cavity C (HR 19), a fin corrugated pipe D (HR 06) is arranged in the liquid cavity D (HR 21), a fin corrugated pipe E (HR 04) is arranged in the liquid cavity E (HR 23), and a fin corrugated pipe F (HR 25) is arranged in the liquid cavity F (HR 02).

3. The energy-saving heat exchange device for wastewater treatment according to claim 1, characterized in that: the plurality of conduction pipes comprise conduction pipes FEs (HR 03), conduction pipes EDx (HR 05), conduction pipes DC (HR 07), conduction pipes CB (HR 09), conduction pipes BA (HR 11), conduction pipes Ax (HR 13), conduction pipes EFx (HR 24) and conduction pipes Fs (HR 26).

4. The energy-saving heat exchange device for wastewater treatment according to claim 1, characterized in that: the conduction pipe FEs (HR 03) conducts and connects the liquid chamber F (HR 02) and the fin corrugated pipe E (HR 04) of the liquid chamber E (HR 23); the conduction pipe EDx (HR 05) is in conduction connection with the finned corrugated pipe D (HR 06) in the liquid chamber D (HR 21) and the finned corrugated pipe E (HR 04) in the liquid chamber E (HR 23); the conduction pipe DC (HR 07) is in conduction connection with the finned corrugated pipe C (HR 08) in the liquid chamber C (HR 19) and the finned corrugated pipe D (HR 06) in the liquid chamber D (HR 21); the conduction pipe CB (HR 09) is in conduction connection with the finned corrugated pipe B (HR 10) in the liquid chamber B (HR 17) and the finned corrugated pipe C (HR 08) in the liquid chamber C (HR 19); the conduction pipe BA (HR 11) is in conduction connection with the finned corrugated pipe A (HR 12) in the liquid chamber A (HR 15) and the finned corrugated pipe B (HR 10) in the liquid chamber B (HR 17); the conduction pipe EFx (HR 24) is in conduction connection with the finned corrugated pipe F (HR 25) in the liquid chamber E (HR 23) and the liquid chamber F (HR 02); one end of a conducting pipe Ax (HR 13) is in conducting connection with the liquid chamber A (HR 15), and the other end of the conducting pipe Ax is in conducting connection with the micro-channel mixing system (3); one end of the conducting pipe Fs (HR 26) is in conducting connection with the liquid chamber F (HR 02), and the other end is used for conducting connection with the gas-liquid separation system (7).

5. The energy-saving heat exchange device for wastewater treatment according to claim 1, characterized in that: the plurality of communication pipes include a communication pipe As (HR 14), a communication pipe ABx (HR 16), a communication pipe BCs (HR 18), a communication pipe CDx (HR 20), a communication pipe DEs (HR 22), and a communication pipe Fx (HR 01); one end of the communicating pipe As (HR 14) is communicated with the liquid chamber A (HR 15), and the other end is communicated with the reaction system (6); the communicating pipe ABx (HR 16) is communicated with a liquid chamber A (HR 15) and a liquid chamber B (HR 17); the communicating pipe BCs (HR 18) are communicated with the liquid chamber B (HR 17) and the liquid chamber C (HR 19); the communicating pipe CDx (HR 20) is communicated with the liquid chamber C (HR 19) and the liquid chamber D (HR 21); the communicating pipe DEs (HR 22) is communicated with the liquid chamber D (HR 21) and the liquid chamber E (HR 23); one end of the communicating pipe Fx (HR 01) is communicated with the liquid chamber F (HR 02), and the other end is communicated with the wastewater input system (1).

6. The energy-saving heat exchange device for wastewater treatment according to claim 1, characterized in that: the communicating pipe Fx (HR 01), the liquid cavity F (HR 02), the conducting pipe FEs (HR 03), the fin corrugated pipe E (HR 04), the conducting pipe EDx (HR 05), the fin corrugated pipe D (HR 06), the conducting pipe DC (HR 07), the fin corrugated pipe C (HR 08), the conducting pipe CB (HR 09), the fin corrugated pipe B (HR 10), the conducting pipe BA (HR 11), the fin corrugated pipe A (HR 12) and the conducting pipe Ax (HR 13) form a normal-temperature wastewater channel; the high-temperature gas-liquid channel is formed by the communicating pipe As (HR 14), a liquid cavity A (HR 15), the communicating pipe ABx (HR 16), a liquid cavity B (HR 17), the communicating pipe BCs (HR 18), the liquid cavity C (HR 19), the communicating pipe CDx (HR 20), the liquid cavity D (HR 21), the communicating pipe DEs (HR 22), the liquid cavity E (HR 23), the conducting pipe EFx (HR 24), the fin corrugated pipe F (HR 25) and the conducting pipe Fs (HR 26); the normal-temperature wastewater channel and the high-temperature gas-liquid channel are mutually penetrated and interacted; the normal-temperature wastewater channel has a gradual cooling effect on the high-temperature gas-liquid channel, and the high-temperature gas-liquid channel has a gradual heating effect on the normal-temperature wastewater channel.

7. The energy-saving heat exchange device for wastewater treatment according to claim 1, characterized in that: the left end of vacuum chamber (HR 27) links to each other with liquid chamber F (HR 02), and the right-hand member links to each other with liquid chamber E (HR 23), and its effect lies in: the liquid chamber F (HR 02) and the liquid chamber E (HR 23) are isolated in vacuum, and the heat energy of the liquid chamber E (HR 23) is prevented from being transmitted to the liquid chamber F (HR 02), so that the heat energy reduction caused by the connection of the liquid chamber E (HR 23) and the liquid chamber F (HR 02) is avoided, the cooling performance of the liquid chamber F (HR 02) is also prevented from being influenced by the heat transfer of the liquid chamber E (HR 23) of the liquid chamber F (HR 02), and the effects of heat insulation and heat preservation of the liquid chamber E (HR 23) and the effects of heat insulation and heat preservation of the liquid chamber F (HR 02) are achieved; thereby achieving the technical effect of saving energy.

8. The energy-saving heat exchange device for wastewater treatment according to claim 1, characterized in that: the invention (2) comprises a preheating heat exchanger (HRQ 1), a thermometer 02 (T02), a thermometer 03 (T03), a thermometer 04 (T04), a thermometer 05 (T05), a thermometer 06 (T06) and a thermometer 07 (T07); the method is characterized in that: the temperature table 02 (T02) is 1-28 ℃, the temperature table 03 (T03) is 3-58 ℃, the temperature table 04 (T04) is 10-68 ℃, the temperature table 05 (T05) is 20-78 ℃, the temperature table 06 (T06) is 30-88 ℃ and the temperature table 07 (T07) is 50-188 ℃ when the temperature-adjustable water heater works.

9. The energy-saving heat exchange device for wastewater treatment according to claim 1 or 7, characterized in that: the normal-temperature wastewater channel has six stages for gradually cooling the high-temperature gas-liquid channel; the first stage comprises a communicating pipe Fx (HR 01) of a normal-temperature wastewater channel, a liquid chamber F (HR 02), a conducting pipe FEs (HR 03), a conducting pipe EFx (HR 24) of a high-temperature gas-liquid channel, a fin corrugated pipe F (HR 25) and a conducting pipe Fs (HR 26), wherein the fin corrugated pipe F (HR 25) of the high-temperature gas-liquid channel penetrates through the liquid chamber F (HR 02) of the normal-temperature wastewater channel, the fin corrugated pipe F (HR 25) is wrapped in the liquid chamber F (HR 02), the volume of the liquid chamber F (HR 02) is 3-30 times of that of the fin corrugated pipe F (HR 25), and the liquid chamber F (HR 02) of the normal-temperature wastewater channel can generate a great cooling effect on the fin F (HR 25) of the high-temperature gas-liquid channel; the second stage consists of a conduction pipe FEs (HR 03), a fin corrugated pipe E (HR 04), a conduction pipe EDx (HR 05), a communication pipe DEs (HR 22) of a high-temperature gas-liquid channel, a liquid chamber E (HR 23) and a conduction pipe EFx (HR 24) of the normal-temperature wastewater channel, wherein the fin corrugated pipe E (HR 04) of the high-temperature wastewater channel penetrates through the liquid chamber E (HR 23) of the high-temperature gas-liquid channel, the volume of the liquid chamber E (HR 23) is 3-30 times of that of the fin corrugated pipe E (HR 04), and the fin corrugated pipe E (HR 04) of the high-temperature wastewater channel can generate certain cooling effect and effect on the liquid chamber E (HR 23) of the high-temperature gas-liquid channel; in the third stage, the device consists of a conduction pipe EDx (HR 05) of a normal-temperature wastewater channel, a fin corrugated pipe D (HR 06), a conduction pipe DC (HR 07), a communicating pipe CDx (HR 20) of a high-temperature gas-liquid channel, a liquid chamber D (HR 21) and a communicating pipe DEs (HR 22), wherein the fin corrugated pipe D (HR 06) of the normal-temperature wastewater channel penetrates through the liquid chamber D (HR 21) of the high-temperature gas-liquid channel, the volume of the liquid chamber D (HR 21) is 3-30 times of that of the fin corrugated pipe D (HR 06), and the fin corrugated pipe D (HR 06) of the normal-temperature wastewater channel can generate certain cooling effect and effect on the liquid chamber D (HR 21) of the high-temperature gas-liquid channel; the fourth stage consists of a conduction pipe DC (HR 07), a fin corrugated pipe C (HR 08), a conduction pipe CB (HR 09), a communication pipe BCs (HR 18) of a high-temperature gas-liquid channel, a liquid chamber C (HR 19) and a communication pipe CDx (HR 20) of the normal-temperature wastewater channel, wherein the fin corrugated pipe C (HR 08) of the normal-temperature wastewater channel penetrates through the liquid chamber C (HR 19) of the high-temperature gas-liquid channel, the volume of the liquid chamber C (HR 19) is 3-30 times of that of the fin corrugated pipe C (HR 08), and the fin corrugated pipe C (HR 08) of the normal-temperature wastewater channel can generate certain cooling effect and effect on the liquid chamber C (HR 19) of the high-temperature gas-liquid channel; the fifth stage is composed of a conduction pipe CB (HR 09), a fin corrugated pipe B (HR 10), a conduction pipe BA (HR 11), a communicating pipe ABx (HR 16), a liquid chamber B (HR 17) and a communicating pipe BCs (HR 18) of a high-temperature gas-liquid channel, wherein the fin corrugated pipe B (HR 10) of the normal-temperature wastewater channel penetrates through the liquid chamber B (HR 17) of the high-temperature gas-liquid channel, the volume of the liquid chamber B (HR 17) is 3-30 times of that of the fin corrugated pipe B (HR 10), and the fin corrugated pipe B (HR 10) of the normal-temperature wastewater channel can generate certain cooling effect and effect on the liquid chamber B (HR 17) of the high-temperature gas-liquid channel; the sixth stage comprises a conduction pipe BA (HR 11), a fin corrugated pipe A (HR 12), a conduction pipe Ax (HR 13), a communicating pipe As (HR 14) of a high-temperature gas-liquid channel, a liquid chamber A (HR 15) and a communicating pipe ABx (HR 16) of the normal-temperature waste water channel, wherein the fin corrugated pipe A (HR 12) of the normal-temperature waste water channel penetrates through the liquid chamber A (HR 15) of the high-temperature gas-liquid channel, the volume of the liquid chamber A (HR 15) is 3-30 times of that of the fin corrugated pipe A (HR 12), and the fin corrugated pipe A (HR 12) of the normal-temperature waste water channel can generate certain cooling effect and effect on the liquid chamber A (HR 15) of the high-temperature gas-liquid channel.

10. The energy-saving heat exchange device for wastewater treatment according to claim 1 or 7, characterized in that: the high-temperature gas-liquid channel gradually heats the normal-temperature wastewater channel in six stages; the first stage comprises a communicating pipe As (HR 14), a liquid chamber A (HR 15), a communicating pipe ABx (HR 16), a conducting pipe BA (HR 11) of a normal-temperature wastewater channel, a fin corrugated pipe A (HR 12) and a conducting pipe Ax (HR 13), wherein the fin corrugated pipe A (HR 12) of the normal-temperature wastewater channel is wrapped in the liquid chamber A (HR 15) of the high-temperature gas-liquid channel, the volume of the liquid chamber A (HR 15) is 3-30 times of that of the fin corrugated pipe A (HR 12), and the liquid chamber A (HR 15) can generate certain heating effect and effect on the fin corrugated pipe A (HR 12); the second stage consists of a communicating pipe ABx (HR 16), a liquid chamber B (HR 17), communicating pipes BCs (HR 18), a conducting pipe CB (HR 09), a fin corrugated pipe B (HR 10) and a conducting pipe BA (HR 11) of a normal-temperature wastewater channel, wherein the fin corrugated pipe B (HR 10) of the normal-temperature wastewater channel is wrapped in the liquid chamber B (HR 17) of the high-temperature gas-liquid channel, the volume of the liquid chamber B (HR 17) is 3-30 times of that of the fin corrugated pipe B (HR 10), and the liquid chamber B (HR 17) can generate certain heating effect and effect on the fin corrugated pipe B (HR 10); the third stage is composed of a communicating pipe BCs (HR 18), a liquid chamber C (HR 19), a communicating pipe CDx (HR 20), a conducting pipe DC (HR 07), a fin corrugated pipe C (HR 08) and a conducting pipe CB (HR 09) of a normal-temperature wastewater channel, wherein the fin corrugated pipe C (HR 08) of the normal-temperature wastewater channel is wrapped in the liquid chamber C (HR 19) of the high-temperature gas-liquid channel, the volume of the liquid chamber C (HR 19) is 3-30 times of that of the fin corrugated pipe C (HR 08), and the liquid chamber C (HR 19) can generate certain heating effect and effect on the fin corrugated pipe C (HR 08); the fourth stage is composed of a communicating pipe CDx (HR 20) of a high-temperature gas-liquid channel, a liquid chamber D (HR 21), a communicating pipe DEs (HR 22), a conducting pipe EDx (HR 05) of a normal-temperature wastewater channel, a fin corrugated pipe D (HR 06) and a conducting pipe DC (HR 07), wherein the fin corrugated pipe D (HR 06) of the normal-temperature wastewater channel is wrapped in the liquid chamber D (HR 21) of the high-temperature gas-liquid channel, the volume of the liquid chamber D (HR 21) is 3-30 times of that of the fin corrugated pipe D (HR 06), and the liquid chamber D (HR 21) can generate certain heating effect and effect on the fin corrugated pipe D (HR 06); the fifth stage is composed of a communicating pipe DEs (HR 22) of a high-temperature gas-liquid channel, a liquid chamber E (HR 23), a conducting pipe EFx (HR 24), a conducting pipe FEs (HR 03) of a normal-temperature wastewater channel, a fin corrugated pipe E (HR 04) and a conducting pipe EDx (HR 05), wherein the fin corrugated pipe E (HR 04) of the normal-temperature wastewater channel is wrapped in the liquid chamber E (HR 23) of the high-temperature gas-liquid channel, the volume of the liquid chamber E (HR 23) is 3-30 times of that of the fin corrugated pipe E (HR 04), and the liquid chamber E (HR 23) can generate certain heating effect and effect on the fin corrugated pipe E (HR 04); the sixth stage is composed of a conducting pipe EFx (HR 24) of a high-temperature gas-liquid channel, a fin corrugated pipe F (HR 25), a communicating pipe Fx (HR 01) of a conducting pipe Fs (HR 26) and a normal-temperature wastewater channel, a liquid chamber F (HR 02) and a conducting pipe FEs (HR 03), wherein the fin corrugated pipe F (HR 25) of the high-temperature gas-liquid channel penetrates through the liquid chamber F (HR 02) of the normal-temperature wastewater channel, the volume of the liquid chamber F (HR 02) is 3-30 times of that of the fin corrugated pipe F (HR 25), and the fin corrugated pipe F (HR 25) can generate certain heating effect and effect on the liquid chamber F (HR 02).