CN203928425U - A kind of automatic temperature control of vacuum hot water unit - Google Patents
A kind of automatic temperature control of vacuum hot water unit Download PDFInfo
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- CN203928425U CN203928425U CN201420324330.1U CN201420324330U CN203928425U CN 203928425 U CN203928425 U CN 203928425U CN 201420324330 U CN201420324330 U CN 201420324330U CN 203928425 U CN203928425 U CN 203928425U
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- temperature sensor
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Abstract
The utility model provides a kind of automatic temperature control of vacuum hot water unit, and this control device comprises: the first temperature sensor arranging on water inlet pipe; The 4th temperature sensor arranging on outlet pipe, and on heat-exchanging tube bundle, be provided with three-temperature sensor; In the solidifying air chamber of vacuum, be provided with the second temperature sensor, pressure sensor; Also comprise controller, controller is connected with said temperature sensor, pressure sensor, burner and vavuum pump signal respectively, and according to the temperature detecting and the first corresponding relation of detected temperatures and burner, the duty of control combustion device; The solidifying pressure of air chamber of vacuum and the second corresponding relation of pressure and vavuum pump that detect according to pressure sensor, the duty of control vavuum pump.The beneficial effects of the utility model are: improved vacuum hot water unit security reliability in use, can, in the time that vacuum hot water unit uses, control accurately the water temperature of water outlet, ensured the constant of leaving water temperature.
Description
Technical field
The utility model relates to the technical field of vacuum hot-water machine, refers more particularly to a kind of automatic temperature control of vacuum hot water unit.
Background technology
Temperature control is the important step of the control device control system of vacuum hot water unit.The control device temperature control system of most vacuum hot water units on domestic market, its temperature-controlled precision is poor, and leaving water temperature fluctuation is larger, does not reach the desired temperature state of a control of vacuum heat-exchange system.
For the problem in correlation technique, effective solution is not yet proposed at present.
Utility model content
For the problem in correlation technique, the utility model proposes a kind of automatic temperature control of vacuum hot water unit, can effectively control leaving water temperature.
The technical solution of the utility model is achieved in that
The utility model provides a kind of automatic temperature control of vacuum hot water unit, and this vacuum hot water unit comprises: combustion chamber, and the vacuum that is arranged on top, combustion chamber is coagulated air chamber, is arranged on the heat-exchanging tube bundle in the solidifying air chamber of described vacuum; Described combustion chamber is connected with burner, the solidifying air chamber of described vacuum is connected with vavuum pump, the both sides of described heat-exchanging tube bundle are connected with respectively water inlet pipe and outlet pipe, it is characterized in that, described control device comprises: be arranged on water flow switch and the first temperature sensor on described water inlet pipe; Be arranged on the 4th temperature sensor on described outlet pipe, be arranged on three-temperature sensor and pressure switch on described heat-exchanging tube bundle; Be arranged on the second temperature sensor, pressure sensor, level electrode and temperature switch in the solidifying air chamber of described vacuum;
Also comprise controller, described controller is connected with described the first temperature sensor, the second temperature sensor, three-temperature sensor, the 4th temperature sensor, pressure sensor, burner and vavuum pump signal respectively, and the temperature detecting according to the second temperature sensor, four temperature sensors and described multiple detected temperatures respectively with the corresponding relation of burner, control the duty of described burner; The vacuum detecting according to pressure sensor is coagulated the pressure of air chamber and the corresponding relation of pressure and vavuum pump, controls the duty of described vavuum pump.
Preferably, the corresponding relation of described the 4th temperature sensor and described burner is: when the temperature detecting at described the 4th temperature sensor is less than the first setting value, controlling described burner burns with the first power, when the temperature detecting at described the 4th temperature sensor equals the first setting value, control described burner and burn with the second power; In the time that the temperature of described the 4th temperature sensor detection arrives the second design temperature, control described burner and quit work; Wherein, described the first setting value is less than described the second setting value, and described the first power is greater than described the second power.
Preferably, the corresponding relation of described the second temperature sensor and described burner is: when the temperature detecting at described the second temperature sensor exceedes setting value, control described burner and quit work;
Described control device also comprises the warning device being connected with described controller signals, when the temperature that described controller detects at the second temperature sensor receiving exceedes setting value, controls described warning device and gives the alarm.
Preferably, described warning device is light alarming device and/or audible alarm unit.
Preferably, described control device is PLC, single-chip microcomputer or industrial PC.
Preferably, described controller is also connected with described pressure switch, temperature switch and level electrode signal respectively, in the time the pressure overpressure setting value of described heat exchanger tube being detected, described in described controller control, pressure switch is opened, water level in the solidifying air chamber of the vacuum that detects at described level electrode during lower than setting value, is controlled described burner and is reduced power output; When temperature in the solidifying air chamber of vacuum exceedes design temperature setting value, temperature switch disconnects, and described controller, receiving after temperature switch disconnection, is controlled described burner and quit work.
The utility model, by the full-automatic uninterrupted regulation and control to leaving water temperature, has improved vacuum hot water unit security reliability in use, can, in the time that vacuum hot water unit uses, control accurately the water temperature of water outlet, ensures the constant of leaving water temperature.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is according to the structural representation of the automatic temperature control of the vacuum hot water unit of the utility model embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain, belongs to the scope that the utility model is protected.
As shown in Figure 1, the present embodiment provides a kind of automatic temperature control of vacuum hot water unit, and this vacuum hot water unit 10 comprises: combustion chamber, and the vacuum that is arranged on 11 tops, combustion chamber is coagulated air chamber 12, is arranged on the heat-exchanging tube bundle 13 in the solidifying air chamber 12 of vacuum; Combustion chamber 11 is connected with burner 20, and the solidifying air chamber 12 of vacuum is connected with vavuum pump 30, and the both sides of heat-exchanging tube bundle 13 are connected with respectively water inlet pipe and outlet pipe, and control device comprises: be arranged on water flow switch 40 and the first temperature sensor T1 on water inlet pipe; Be arranged on the 4th temperature sensor T4 on outlet pipe, be arranged on three-temperature sensor T3 and pressure switch on heat-exchanging tube bundle 13; Be arranged on the second temperature sensor T2, pressure sensor P1, level electrode 16 and temperature switch 17 in the solidifying air chamber 12 of vacuum;
Also comprise controller, controller is connected with the first temperature sensor T1, the second temperature sensor T2, three-temperature sensor T3, the 4th temperature sensor T4, pressure sensor P1, burner 20 and vavuum pump 30 signals respectively, and the temperature detecting according to the second temperature sensor T2, the 4th temperature sensor T4 and multiple detected temperatures respectively with the corresponding relation of burner 20, the duty of control combustion device 20; The solidifying pressure of air chamber 12 of vacuum and the corresponding relation of pressure and vavuum pump 30 that detect according to pressure sensor P1, the duty of control vavuum pump 30.
In the above-described embodiments, the temperature detecting according to the second temperature sensor T2, the 4th temperature sensor T4 by controller, and the temperature detecting and the first corresponding relation of burner 20, the duty of control combustion device 20.Concrete, the 4th temperature sensor T4 detects the leaving water temperature of water pipe, controller is provided with required leaving water temperature, the corresponding relation of wherein said the 4th temperature sensor T4 and described burner 20 is: when the temperature detecting at described the 4th temperature sensor T4 is less than the first setting value, controlling described burner 20 burns with the first power, when the temperature detecting at described the 4th temperature sensor T4 equals the first setting value, control described burner 20 and burn with the second power; In the time that the temperature of described the 4th temperature sensor T4 detection arrives the second design temperature, control described burner 20 and quit work; Wherein, described the first setting value is less than described the second setting value, and described the first power is greater than described the second power.In the time that pressure is excessive, controller control vavuum pump 30 quits work, when pressure hour, controller control vavuum pump 30 is worked.
In addition, the corresponding relation of described the second temperature sensor T2 and described burner 20 is: when the temperature detecting at described the second temperature sensor T2 exceedes setting value, control described burner 20 and quit work;
Concrete, described control device also comprises the warning device being connected with described controller signals, when the temperature that described controller detects at the second temperature sensor T2 receiving exceedes setting value, controls described warning device and gives the alarm.When second temperature sensor T2 detect be the temperature of WATER AS FLOW MEDIUM, when second temperature sensor T2 detect temperature exceed set value time, controller control combustion device 20 quits work, meanwhile, controller control warning device gives the alarm.In the time that temperature exceeds setting, can remind user, improve vacuum hot-water machine 10 security performance in use.Concrete, described warning device is light alarming device and/or audible alarm unit.Prompting that can be eye-catching, avoids client to neglect.
Controller wherein can be different controller of the prior art, as: controller is PLC, single-chip microcomputer or industrial PC.PLC, single-chip microcomputer and industrial PC have ripe internal control function, can be according to the state of the good control combustion device 20 of the signal gathering.
Preferably, described controller is also connected with described pressure switch 15, temperature switch 17 and level electrode 16 signals respectively, in the time the pressure overpressure setting value of described heat exchanger tube being detected, described in described controller control, pressure switch 15 is opened, water level in the solidifying air chamber 12 of the vacuum that detects at described level electrode 16 during lower than setting value, is controlled described burner 20 and is reduced power output; When temperature in the solidifying air chamber 12 of vacuum exceedes design temperature setting value, temperature switch 17 disconnects, and described controller, receiving after temperature switch 17 disconnections, is controlled described burner 20 and quit work.Thereby while having ensured that the temperature detecting at temperature sensor exceedes setting value, when burner 20 does not quit work, can make controller obtain signal by the disconnection of temperature switch 17, and disconnect burner 20, thereby improve equipment security performance in use.
Can find out by foregoing description, the temperature control equipment that the present embodiment provides has improved the security in use of vacuum hot water unit, can, in the time that vacuum hot water unit uses, control accurately the water temperature of water outlet.
Further understand for the temperature control equipment of the automatic temperature control of the convenient vacuum hot water unit that the present embodiment is provided, be elaborated with specific embodiment below.
1, temperature control embodiment: temperature control is taking intermediate water leaving water temperature (temperature that the 4th temperature sensor detects) as final control variables; first target setting equilibrium temperature before operation; control accuracy; protection shutdown temperature; program controller (PLC) in electric cabinet will opening/stopping according to the automatic control combustion device of the parameter setting; greatly/little fire conversion, carrys out accurately regulating and controlling temperature with this and changes.Such as, setting stable water outlet temperature is 70 DEG C, control accuracy is 2 DEG C, stoppage protection temperature is 75 DEG C, and after bringing into operation, program controller drives burner first to exert oneself with big fire state, rise to while setting 70 DEG C of equilibrium temperatures Deng leaving water temperature, transfer little fire operation to, if now temperature declines, be down to and set 70 DEG C of equilibrium temperatures and deduct 2 DEG C of control accuracies and again drive burner big fire operation 68 DEG C time; If temperature continues to raise, while rising to 75 DEG C of stoppage protection temperature, burner is out of service, when being down to 68 DEG C, equitemperature again starts with big fire state, and the pattern row of not stopping transport according to this, uninterruptedly regulation and control, ensure that temperature fluctuates within the scope of 70 DEG C at 68 DEG C.If precision is decided to be 1 DEG C, start big fire state temperature and become 69 DEG C, temperature fluctuation range is at 1 DEG C, by that analogy.
2, temperature safeguard protection embodiment: temperature protection comprises a, the high limit protection of WATER AS FLOW MEDIUM temperature (temperature that the second temperature sensor detects) operation.When WATER AS FLOW MEDIUM is during higher than this design temperature, program controller drives burner out of service, until WATER AS FLOW MEDIUM temperature could start while being down to safety value (can set) again automatically.B, WATER AS FLOW MEDIUM temperature superelevation alarm and protection.This protection temperature is higher than high limit protection temperature in 1; WATER AS FLOW MEDIUM can not reach this temperature under normal circumstances; reach this alarm temperature if there is fortuitous event (chance is very little); program controller can send the instruction of cutting off burner operation again; alarm can send alarm sound simultaneously, with call user's attention.C, external temp switch protection.This temperature is higher than design temperature in 1 and 2, if first two protection all loses effect (chance is less), external temperature switch normally-closed contact can disconnect, and program controller can cut off burner power supply, and it is perfectly safe to ensure.D, the high limit protection of intermediate water leaving water temperature operation.Leaving water temperature is during higher than this temperature, and program controller drives burner out of service, until leaving water temperature starts again automatically lower than big fire startup value (equilibrium temperature deducts accuracy value) Shi Caihui.E, intermediate water leaving water temperature superelevation alarm and protection.This protection temperature is higher than high limit protection temperature in 4; secondary water outlet can not reach this temperature under normal circumstances; reach this alarm temperature if there is fortuitous event (chance is very little); program controller can send the instruction of cutting off burner operation again; alarm can send alarm sound simultaneously, with call user's attention.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. an automatic temperature control for vacuum hot water unit, this vacuum hot water unit comprises: combustion chamber, the vacuum that is arranged on top, combustion chamber is coagulated air chamber, is arranged on the heat-exchanging tube bundle in the solidifying air chamber of described vacuum; Described combustion chamber is connected with burner, the solidifying air chamber of described vacuum is connected with vavuum pump, the both sides of described heat-exchanging tube bundle are connected with respectively water inlet pipe and outlet pipe, it is characterized in that, described control device comprises: be arranged on water flow switch and the first temperature sensor on described water inlet pipe; Be arranged on the 4th temperature sensor on described outlet pipe, be arranged on three-temperature sensor and pressure switch on described heat-exchanging tube bundle; Be arranged on the second temperature sensor, pressure sensor, level electrode and temperature switch in the solidifying air chamber of described vacuum;
Also comprise controller, described controller is connected with described the first temperature sensor, the second temperature sensor, three-temperature sensor, the 4th temperature sensor, pressure sensor, burner and vavuum pump signal respectively, and the temperature detecting according to the second temperature sensor, four temperature sensors and described multiple detected temperatures respectively with the corresponding relation of burner, control the duty of described burner; The vacuum detecting according to pressure sensor is coagulated the pressure of air chamber and the corresponding relation of pressure and vavuum pump, controls the duty of described vavuum pump.
2. the automatic temperature control of vacuum hot water unit according to claim 1, it is characterized in that, the corresponding relation of described the 4th temperature sensor and described burner is: when the temperature detecting at described the 4th temperature sensor is less than the first setting value, controlling described burner burns with the first power, when the temperature detecting at described the 4th temperature sensor equals the first setting value, control described burner and burn with the second power; In the time that the temperature of described the 4th temperature sensor detection arrives the second design temperature, control described burner and quit work; Wherein, described the first setting value is less than described the second setting value, and described the first power is greater than described the second power.
3. the automatic temperature control of vacuum hot water unit according to claim 2, it is characterized in that, the corresponding relation of described the second temperature sensor and described burner is: when the temperature detecting at described the second temperature sensor exceedes setting value, control described burner and quit work;
Described control device also comprises the warning device being connected with described controller signals, when the temperature that described controller detects at the second temperature sensor receiving exceedes setting value, controls described warning device and gives the alarm.
4. the automatic temperature control of vacuum hot water unit according to claim 3, is characterized in that, described warning device is light alarming device and/or audible alarm unit.
5. the automatic temperature control of vacuum hot water unit according to claim 4, is characterized in that, described control device is PLC, single-chip microcomputer or industrial PC.
6. according to the automatic temperature control of the vacuum hot water unit described in claim 1～5 any one, it is characterized in that, described controller is also connected with described pressure switch, temperature switch and level electrode signal respectively, in the time the pressure overpressure setting value of described heat exchanger tube being detected, described in described controller control, pressure switch is opened, water level in the solidifying air chamber of the vacuum that detects at described level electrode during lower than setting value, is controlled described burner and is reduced power output; When temperature in the solidifying air chamber of vacuum exceedes design temperature setting value, temperature switch disconnects, and described controller, receiving after temperature switch disconnection, is controlled described burner and quit work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420324330.1U CN203928425U (en) | 2014-06-18 | 2014-06-18 | A kind of automatic temperature control of vacuum hot water unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420324330.1U CN203928425U (en) | 2014-06-18 | 2014-06-18 | A kind of automatic temperature control of vacuum hot water unit |
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| Publication Number | Publication Date |
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| CN203928425U true CN203928425U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420324330.1U Expired - Fee Related CN203928425U (en) | 2014-06-18 | 2014-06-18 | A kind of automatic temperature control of vacuum hot water unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066451A (en) * | 2015-07-15 | 2015-11-18 | 芜湖美的厨卫电器制造有限公司 | Gas water heater, outlet water temperature control method of gas water heater and water heating system |
| CN106123344A (en) * | 2016-07-13 | 2016-11-16 | 杭州富尔顿热能设备有限公司 | A kind of vacuum boiler and to the method for vacuum boiler vacuum pumping, Apparatus and system |
-
2014
- 2014-06-18 CN CN201420324330.1U patent/CN203928425U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066451A (en) * | 2015-07-15 | 2015-11-18 | 芜湖美的厨卫电器制造有限公司 | Gas water heater, outlet water temperature control method of gas water heater and water heating system |
| CN106123344A (en) * | 2016-07-13 | 2016-11-16 | 杭州富尔顿热能设备有限公司 | A kind of vacuum boiler and to the method for vacuum boiler vacuum pumping, Apparatus and system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160810 Address after: 071000 No. 888, Taihang Road, Hebei, Baoding Patentee after: Baoding Taihang Group Co., Ltd., Hebei Address before: 071000, No. 60, Shi Zhuang Street, South City, Hebei, Baoding Patentee before: Wei Tianyan |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20210618 |
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| CF01 | Termination of patent right due to non-payment of annual fee |