CN204630156U - For liquid temp accuracy-control system in heating load - Google Patents
For liquid temp accuracy-control system in heating load Download PDFInfo
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- CN204630156U CN204630156U CN201520160639.6U CN201520160639U CN204630156U CN 204630156 U CN204630156 U CN 204630156U CN 201520160639 U CN201520160639 U CN 201520160639U CN 204630156 U CN204630156 U CN 204630156U
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Abstract
The utility model discloses in a kind of heating load for liquid temp accuracy-control system, wherein the delivery port of boiler is connected with the water inlet end that electric three passes mixes water valve, access the water inlet of boiler after the water side that electric three passes mixes water valve connects feed flow water pump and heat load successively, boiler is provided with the first temperature sensor; Another water inlet end that a delivery port and the electric three passes of cold-storage water tank mix water valve is connected, cold-storage water tank be connected water circulating pump and refrigeration plant successively between another delivery port with water inlet, cold-storage water tank is provided with the second temperature sensor; Connecting line between feed flow water delivery side of pump and heat load is provided with three-temperature sensor; PID controller is electrically connected with first, second and third temperature sensor on the one hand respectively, mixes water valve be on the other hand electrically connected with electric three passes.The utility model can realize accurately controlling for liquid temp, have structure simple, be easy to the advantage that realizes and functional reliability is high.
Description
Technical field
The utility model relates to precision Control Technology field, specifically supplies liquid temp accuracy-control system in a kind of heating load.
Background technology
Along with national economic development, high-power heat-producing device is applied to industry and national defence increases increasingly, and high-power heat-producing device cooling requires more and more higher, and high-precision temperature (within ± 1 DEG C) control overflow is more and more higher.The utility model patent proposes a kind of PID and controls hot and cold water tank's three-way water mixing valve accurate temperature controlling control principle, can realize heat load accurately controls (within ± 1 DEG C for liquid temp, reach as high as ± 0.1 DEG C), if and space allows, cold water storage cistern can increase volume, improves cold-storage ability, and night cheap electricity price more can be utilized to realize refrigeration and cold accumulation, thus reduction operating cost, improve system cloud gray model economy.
Utility model content
The purpose of this utility model is to provide in a kind of heating load for liquid temp accuracy-control system, PID controller controls by three temperature sensors the aperture that electric three passes mixes water valve, to ensure feed flow temperature control precision, make for liquid temp between boiler temperature and cold-storage water tank temperature.
The technical solution of the utility model is as follows:
For liquid temp accuracy-control system in a kind of heating load, include boiler, cold-storage water tank, electric three passes mixes water valve, feed flow water pump, water circulating pump, magnetic valve, heat load, refrigeration plant and PID controller, it is characterized in that: in described boiler, electric heater is installed, the water inlet end that delivery port and the described electric three passes of described boiler mix water valve is connected, the water inlet of described boiler is accessed after the water side that described electric three passes mixes water valve connects described feed flow water pump and heat load successively, described magnetic valve is arranged on described feed flow water delivery side of pump with on the bypass line be connected between described boiler, described boiler is provided with the first temperature sensor, another water inlet end that a delivery port and the described electric three passes of described cold-storage water tank mix water valve is connected, cold-storage water tank be connected described water circulating pump and refrigeration plant successively between another delivery port with water inlet, cold-storage water tank is provided with the second temperature sensor, connecting line between described feed flow water delivery side of pump and described heat load is provided with three-temperature sensor, described PID controller is electrically connected with first, second and third temperature sensor described on the one hand respectively, mixes water valve be on the other hand electrically connected with described electric three passes.
For liquid temp accuracy-control system in described heating load, it is characterized in that: the top of described boiler is connected by bypass line with the top of described cold-storage water tank.
Cold-storage can carry out in advance, also can carry out while providing cooling fluid to heat load; Electric heater only runs lower than during feed flow desired temperature for initial hot water case temperature, stops heating when boiler temperature is more than or equal to feed flow desired temperature.
The beneficial effects of the utility model:
1, the utility model can realize heat load and accurately control (within ± 1 DEG C, reach as high as ± 0.1 DEG C) for liquid temp;
2, cold-storage water tank of the present utility model can increase volume, improves cold-storage ability, night cheap electricity price more can be utilized to realize refrigeration and cold accumulation, thus reduce operating cost, improve system cloud gray model economy.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Detailed description of the invention
See Fig. 1, for liquid temp accuracy-control system in a kind of heating load, include boiler 1, cold-storage water tank 5, electric three passes mixes water valve 8, feed flow water pump 9, water circulating pump 7, magnetic valve 11, heat load 12, refrigeration plant 6 and PID controller 13, electric heater 2 is installed in boiler 1, the water inlet end that delivery port and the electric three passes of boiler 1 mix water valve 8 is connected, the water side that electric three passes mixes water valve 8 connects feed flow water pump 9 and the rear water inlet accessing boiler 1 of heat load 12 successively, magnetic valve 11 is arranged on the outlet of feed flow water pump 9 with on the bypass line be connected between boiler 1, boiler 1 is provided with the first temperature sensor 3, another water inlet end that a delivery port and the electric three passes of cold-storage water tank 5 mix water valve 8 is connected, cold-storage water tank 5 be connected water circulating pump 7 and refrigeration plant 6 between another delivery port with water inlet successively, cold-storage water tank 5 is provided with the second temperature sensor 4, connecting line between the outlet of feed flow water pump 9 and heat load 12 is provided with three-temperature sensor 10, PID controller 13 1 aspect is electrically connected with first, second and third temperature sensor 3,4,10 respectively, mixes water valve 8 be on the other hand electrically connected with electric three passes.
In the utility model, the top of boiler 1 is connected by bypass line with the top of cold-storage water tank 5.
When the second temperature sensor 4 monitors temperature in cold-storage water tank 5 higher than a certain setting value, water circulating pump 9 starts, and refrigeration plant 6 runs; When the second temperature sensor 4 temperature monitored in cold-storage water tank 5 is less than or equal to this setting value, refrigeration plant 6 is out of service, and water circulating pump 9 time delay is out of service.
Electric heater 2 only runs lower than during feed flow desired temperature for initial hot water case temperature, stops heating when the temperature in boiler 1 is more than or equal to feed flow desired temperature.
PID controller 13 controls by the first temperature sensor 3, second temperature sensor 4 and three-temperature sensor 10 aperture that electric three passes mixes water valve 8, remains that feed flow temperature control precision is in range of set value, thus ensure that feed flow temperature control precision.
Along with the continuous operation of heat load 12, boiler 1 temperature is more and more higher, and part hot water enters cold-storage water tank 5 by bypass line, temperature in cold-storage water tank 5 can slowly raise, when the temperature in cold-storage water tank 5 is higher than setting value, water circulating pump 9 starts, refrigeration plant 6 runs, then the temperature in cold-storage water tank temperature 5 can slowly reduce, when second temperature sensor 4 temperature monitored in cold-storage water tank 5 is less than or equal to this setting value, refrigeration plant 6 is out of service, and water circulating pump 9 time delay is out of service.
Above embodiment is not limited only to protection domain of the present utility model, all modify based on basic thought of the present utility model or change all belong to protection domain of the present utility model.
Claims (2)
1. supply liquid temp accuracy-control system in a heating load, include boiler, cold-storage water tank, electric three passes mixes water valve, feed flow water pump, water circulating pump, magnetic valve, heat load, refrigeration plant and PID controller, it is characterized in that: in described boiler, electric heater is installed, the water inlet end that delivery port and the described electric three passes of described boiler mix water valve is connected, the water inlet of described boiler is accessed after the water side that described electric three passes mixes water valve connects described feed flow water pump and heat load successively, described magnetic valve is arranged on described feed flow water delivery side of pump with on the bypass line be connected between described boiler, described boiler is provided with the first temperature sensor, another water inlet end that a delivery port and the described electric three passes of described cold-storage water tank mix water valve is connected, cold-storage water tank be connected described water circulating pump and refrigeration plant successively between another delivery port with water inlet, cold-storage water tank is provided with the second temperature sensor, connecting line between described feed flow water delivery side of pump and described heat load is provided with three-temperature sensor, described PID controller is electrically connected with first, second and third temperature sensor described on the one hand respectively, mixes water valve be on the other hand electrically connected with described electric three passes.
2. supply liquid temp accuracy-control system in heating load according to claim 1, it is characterized in that: the top of described boiler is connected by bypass line with the top of described cold-storage water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520160639.6U CN204630156U (en) | 2015-03-19 | 2015-03-19 | For liquid temp accuracy-control system in heating load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520160639.6U CN204630156U (en) | 2015-03-19 | 2015-03-19 | For liquid temp accuracy-control system in heating load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204630156U true CN204630156U (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520160639.6U Expired - Fee Related CN204630156U (en) | 2015-03-19 | 2015-03-19 | For liquid temp accuracy-control system in heating load |
Country Status (1)
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| CN (1) | CN204630156U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729147A (en) * | 2015-03-19 | 2015-06-24 | 合肥天鹅制冷科技有限公司 | Precise control system for liquid supply temperature in heat load |
| CN113418322A (en) * | 2021-06-23 | 2021-09-21 | 国网福建省电力有限公司厦门供电公司 | High-temperature electric heat accumulation type cold and hot combined supply device |
| CN114719650A (en) * | 2022-04-15 | 2022-07-08 | 青岛福格节能环保工程有限公司 | Slow-release mixed flow energy storage system |
-
2015
- 2015-03-19 CN CN201520160639.6U patent/CN204630156U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729147A (en) * | 2015-03-19 | 2015-06-24 | 合肥天鹅制冷科技有限公司 | Precise control system for liquid supply temperature in heat load |
| CN113418322A (en) * | 2021-06-23 | 2021-09-21 | 国网福建省电力有限公司厦门供电公司 | High-temperature electric heat accumulation type cold and hot combined supply device |
| CN114719650A (en) * | 2022-04-15 | 2022-07-08 | 青岛福格节能环保工程有限公司 | Slow-release mixed flow energy storage system |
| CN114719650B (en) * | 2022-04-15 | 2024-03-01 | 青岛福格节能环保工程有限公司 | Sustained-release mixed flow energy storage system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |