CN205282112U - Serial -type heat exchanger radioactive waste cooling system - Google Patents
Serial -type heat exchanger radioactive waste cooling system Download PDFInfo
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- CN205282112U CN205282112U CN201520972307.8U CN201520972307U CN205282112U CN 205282112 U CN205282112 U CN 205282112U CN 201520972307 U CN201520972307 U CN 201520972307U CN 205282112 U CN205282112 U CN 205282112U
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- radioactive waste
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Abstract
The utility model belongs to the technical field of indirect heating equipment, concretely relates to serial -type heat exchanger radioactive waste cooling system. The utility model discloses a go up faint breath water heat exchanger, lower faint breath water heat exchanger and pipeline control equipment: it establishes ties with lower faint breath water heat exchanger mutually to go up faint breath water heat exchanger, radioactive waste passes through waste gas import and gets into and go up faint breath water heat exchanger, and pipeline control equipment control radioactive waste handles through last faint breath water heat exchanger that the back is direct is discharged by exhaust outlet, or radioactive waste is discharged by exhaust outlet after faint breath water heat exchanger deals with differently under and through last faint breath water heat exchanger in proper order again. The utility model provides a current radioactive waste cooling system heat exchange efficiency lower, be difficult to make technology radioactive waste treatment effect to reach the technical problem of design criteria value. The utility model discloses two gas water heat exchanger that establish ties mutually successively lower the temperature for twice, remove the wet practice radioactive waste, have improved the heat exchange efficiency of whole cooling system to radioactive waste.
Description
Technical field
The utility model belongs to technical field of heat exchange equipment, is specifically related to a kind of tandem interchanger radioactive emission cooling system.
Background technology
Nuclear power plants operational process can produce radioactive emission, in Nuclear power plants waste gas treatment process, existing radioactive emission cooling system adopts an air-water heat exchanger to carry out cooling process, due to reasons such as the change of upstream source item and system long-time running, existing radioactive emission cooling system is difficult to make technique radioactive emission process effect reach design desired value.
Practical novel content
The utility model technical issues that need to address are: existing radioactive emission cooling system heat exchange efficiency is lower, it is difficult to make technique radioactive emission process effect reach design desired value.
The technical solution of the utility model as follows described in:
A kind of tandem interchanger radioactive emission cooling system, comprises upstream gas water-to-water heat exchanger, downstream air-water heat exchanger and pipe control equipment: upstream gas water-to-water heat exchanger and downstream air-water heat exchanger are in series; Radioactive emission enters upstream gas water-to-water heat exchanger by exhaust gas inlet, pipe control device control radioactive emission is directly discharged by waste gas outlet after upstream gas water-to-water heat exchanger processes, or radioactive emission is discharged by waste gas outlet more successively after upstream gas water-to-water heat exchanger and downstream air-water heat exchanger process respectively.
Preferably: described pipe control equipment is by totally three the electronic valves realizations of core level of the first valve, the 2nd valve and the 3rd valve: the first valve is arranged on and connects the outlet of upstream gas water-to-water heat exchanger with on the pipeline of waste gas outlet; 2nd valve is arranged on and connects downstream air-water heat exchanger outlet with on the pipeline of waste gas outlet; 3rd valve is arranged on and connects the outlet of upstream gas water-to-water heat exchanger with on the pipeline of downstream air-water heat exchanger entrance.
Preferably: described upstream gas water-to-water heat exchanger and downstream air-water heat exchanger adopt separate different cold source.
The beneficial effects of the utility model are:
(1) a kind of tandem interchanger radioactive emission cooling system of the present utility model, by unifying platform air water another air-water heat exchanger of exchanging air downstream tandem at existing cooling system, on the basis making full use of existing upstream gas water-to-water heat exchanger, by the downstream air-water heat exchanger increased newly, radioactive emission realized further cooling, dehumidifying, it is to increase the heat exchange efficiency of whole cooling system to radioactive emission;
(2) a kind of tandem interchanger radioactive emission cooling system of the present utility model, two air-water heat exchangers adopt separate different cold source, the overall floor space of cooling system is reduced, installs more flexible;
(3) a kind of tandem interchanger radioactive emission cooling system of the present utility model, Cooling system pipe arranges valve to control the state that puts into operation of downstream air-water heat exchanger, instantly when there is catastrophe failure in faint breath water-to-water heat exchanger, in time downstream air-water heat exchanger is kept apart off gas treatment flow process by control valve, and do not affect the normal operation of upstream gas water-to-water heat exchanger, ensure that the operating safety of cooling system;
(4) a kind of tandem interchanger radioactive emission cooling system of the present utility model, waste gas outlet temperature is 5 DEG C, and water capacity is from the 50.8g/m of prior art3It is down to 6.86g/m3Major part liquid forms drop and pneumatic separation, entering in peripheral hardware trap along air-water heat exchanger outlet conduit, a small amount of drop continues flowing with air-flow and enters zeolite filter removal moisture drying through waste gas outlet, finally can realize entering the ambient humidity being detained bed and be reduced to design humidity 0.5g/m3Hereinafter, spent air temperture, humidity is made to meet system process design requirements.
Accompanying drawing explanation
Fig. 1 is a kind of tandem interchanger radioactive emission cooling system equipment connection schematic diagram of the present utility model.
In figure, 1-exhaust gas inlet, 2-waste gas outlet, 3-upstream gas water-to-water heat exchanger, 4-first valve, 5-the 2nd valve, 6-downstream air-water heat exchanger, 7-the 3rd valve, 8-upstream gas water-to-water heat exchanger cooling water inlet, 9-upstream gas water-to-water heat exchanger cooling water outlet, air-water heat exchanger cooling water inlet, 10-downstream, 11-downstream air-water heat exchanger cooling water outlet.
Embodiment
Below in conjunction with drawings and Examples, a kind of tandem interchanger radioactive emission cooling system of the present utility model is described in detail.
As shown in Figure 1, a kind of tandem interchanger radioactive emission cooling system of the present utility model, comprises upstream gas water-to-water heat exchanger 3, downstream air-water heat exchanger 6 and pipe control equipment: upstream gas water-to-water heat exchanger 3 and downstream air-water heat exchanger 6 are in series; Radioactive emission enters upstream gas water-to-water heat exchanger 3 by exhaust gas inlet 1, pipe control device control radioactive emission is directly discharged by waste gas outlet 2 after upstream gas water-to-water heat exchanger 3 processes, or radioactive emission is discharged by waste gas outlet 2 more successively after upstream gas water-to-water heat exchanger 3 and downstream air-water heat exchanger 6 process respectively.
Described upstream gas water-to-water heat exchanger 3 and downstream air-water heat exchanger 6 adopt separate different cold source. Water coolant in upstream gas water-to-water heat exchanger 3 flows into through upstream gas water-to-water heat exchanger cooling water inlet 8, by flowing out through upstream gas water-to-water heat exchanger cooling water outlet 9 after upstream gas water-to-water heat exchanger 3; Water coolant in downstream air-water heat exchanger 6 flows into through air-water heat exchanger cooling water inlet, downstream 10, by flowing out through downstream air-water heat exchanger cooling water outlet 11 after downstream air-water heat exchanger 6.
In the present embodiment, described pipe control equipment is by totally three the electronic valves realizations of core level of the first valve 4, the 2nd valve 5 and the 3rd valve 7. First valve 4 is arranged on and connects upstream gas water-to-water heat exchanger 3 outlet with on the pipeline of waste gas outlet 2; 2nd valve 5 is arranged on and connects downstream air-water heat exchanger 6 outlet with on the pipeline of waste gas outlet 2; 3rd valve 7 is arranged on and connects upstream gas water-to-water heat exchanger 3 outlet with on the pipeline of downstream air-water heat exchanger 6 entrance.
Tandem interchanger radioactive emission cooling system in the present embodiment can realize following two kinds of operation conditions.
Operation condition one:
Close the first valve 4, open the 2nd valve 5 and the 3rd valve 7, upstream gas water-to-water heat exchanger 3 and downstream air-water heat exchanger 6 are in series, and radioactive emission is lowered the temperature respectively through upstream gas water-to-water heat exchanger 3 and downstream air-water heat exchanger 6, is dehumidified successively, reaches good cooling, effect on moisture extraction.
Operation condition two:
Instantly when faint breath water-to-water heat exchanger 6 breaks down, open the first valve 4, close the 2nd valve 5 and the 3rd valve 7, downstream air-water heat exchanger 6 is kept apart off gas treatment flow process, radioactive emission is only lowered the temperature through upstream gas water-to-water heat exchanger 3, is dehumidified, and ensure that the operating safety of cooling system.
Claims (3)
1. a tandem interchanger radioactive emission cooling system, comprises upstream gas water-to-water heat exchanger (3), and radioactive emission is lowered the temperature by upstream gas water-to-water heat exchanger (3), dehumidification operation; It is characterized in that: also comprise downstream air-water heat exchanger (6) and pipe control equipment: upstream gas water-to-water heat exchanger (3) and downstream air-water heat exchanger (6) are in series; Radioactive emission enters upstream gas water-to-water heat exchanger (3) by exhaust gas inlet (1), pipe control device control radioactive emission is directly discharged by waste gas outlet (2) after upstream gas water-to-water heat exchanger (3) processes, or radioactive emission is discharged by waste gas outlet (2) more successively after upstream gas water-to-water heat exchanger (3) and downstream air-water heat exchanger (6) process respectively.
2. a kind of tandem interchanger radioactive emission cooling system according to claim 1, it is characterised in that: described pipe control equipment is by totally three the electronic valves realizations of core level of the first valve (4), the 2nd valve (5) and the 3rd valve (7): the first valve (4) is arranged on and connects upstream gas water-to-water heat exchanger (3) outlet with on the pipeline of waste gas outlet (2); 2nd valve (5) is arranged on and connects downstream air-water heat exchanger (6) outlet with on the pipeline of waste gas outlet (2); 3rd valve (7) is arranged on and connects upstream gas water-to-water heat exchanger (3) outlet with on the pipeline of downstream air-water heat exchanger (6) entrance.
3. a kind of tandem interchanger radioactive emission cooling system according to claim 1 and 2, it is characterised in that: described upstream gas water-to-water heat exchanger (3) and downstream air-water heat exchanger (6) adopt separate different cold source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520972307.8U CN205282112U (en) | 2015-11-27 | 2015-11-27 | Serial -type heat exchanger radioactive waste cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520972307.8U CN205282112U (en) | 2015-11-27 | 2015-11-27 | Serial -type heat exchanger radioactive waste cooling system |
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| CN205282112U true CN205282112U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520972307.8U Active CN205282112U (en) | 2015-11-27 | 2015-11-27 | Serial -type heat exchanger radioactive waste cooling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110335688A (en) * | 2019-06-27 | 2019-10-15 | 山东普瑞普勒能源科技有限公司 | A kind of tandem heat exchanger Spent Radioactive air cooling system |
-
2015
- 2015-11-27 CN CN201520972307.8U patent/CN205282112U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110335688A (en) * | 2019-06-27 | 2019-10-15 | 山东普瑞普勒能源科技有限公司 | A kind of tandem heat exchanger Spent Radioactive air cooling system |
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