CN208547286U - A kind of water-bath type automatic dry-combustion-proof electric heater unit - Google Patents
A kind of water-bath type automatic dry-combustion-proof electric heater unit Download PDFInfo
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- CN208547286U CN208547286U CN201820942183.2U CN201820942183U CN208547286U CN 208547286 U CN208547286 U CN 208547286U CN 201820942183 U CN201820942183 U CN 201820942183U CN 208547286 U CN208547286 U CN 208547286U
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Abstract
A kind of water-bath type automatic dry-combustion-proof electric heater unit of the utility model, including cylinder, explosion-proof control box, heater, heater and explosion-proof control box are arranged on cylinder, liquid-level switch is equipped at the top of cylinder, cylinder lateral wall is equipped with barrel temperature sensor, heater is equipped with heater temperature sensor, temperature switch, the first temperature controller is equipped in explosion-proof control box, second temperature controller, relay, contactor, the input terminal of the output end of barrel temperature sensor and the first temperature controller is electrically connected, the output end of first temperature controller, the output end of heater temperature sensor is electrically connected with the input terminal of the second temperature controller respectively, the output end of second temperature controller, temperature switch, liquid-level switch is electrically connected with the input terminal of relay respectively, the output end of relay and the input terminal of contactor are electrically connected, the output end and heater of contactor It is electrically connected.The utility model can be realized automatic control and the burning prevention function, security performance height of bath temperature.
Description
Technical field
The utility model relates to technical field of heating, more particularly to a kind of water-bath type automatic dry-combustion-proof electric heater unit.
Background technique
During liquefied natural gas gasifying, because natural gas temperature is limited after air temperature type vaporizer gasification, during the cold season
Air temperature type vaporizer will appear a large amount of icings, and export gas temperature is caused to reduce phenomenon, so usually vaporizing in air temperature type
Increase water-bath type electric heater after device, for improving export gas temperature, prevents icing, general water-bath type electric heating in pipeline
The start and stop of device and water level control need operator's field control, not can be carried out and heat and prevent dry combustion method function automatically, often increase
Add operation cost of labor；It is at high cost, security performance is low in addition, structure is complicated.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of automatic control that can be realized bath temperature and prevent dry
Burn the high water-bath type automatic dry-combustion-proof electric heater unit of function, security performance.
A kind of water-bath type automatic dry-combustion-proof electric heater unit of the utility model, including cylinder, explosion-proof control box, heater,
The heater and explosion-proof control box are arranged on cylinder, and liquid-level switch is equipped at the top of the cylinder, is set on the cylinder lateral wall
There is barrel temperature sensor, the heater is equipped with heater temperature sensor, temperature switch, sets in the explosion-proof control box
There are the first temperature controller, the second temperature controller, relay, contactor, the output end and the first temperature controller of the barrel temperature sensor
Input terminal be electrically connected, the output end of first temperature controller, heater temperature sensor output end respectively with described the
The input terminals of two temperature controllers is electrically connected, the output end of second temperature controller, temperature switch, liquid-level switch respectively with it is described after
The input terminal of electric appliance is electrically connected, and the output end of the relay and the input terminal of contactor are electrically connected, the contactor
Output end and heater are electrically connected.
A kind of water-bath type automatic dry-combustion-proof electric heater unit of the utility model, wherein the explosion-proof control box cabinet is equipped with
Hand automatically selects knob, heater starting button, heater stop button, run indicator, stops indicator light, and the hand is automatic
Select button, heater starting button, heater stop button are electrically connected with the input terminal of the relay respectively, described to connect
The output end of tentaculum is electrically connected with the run indicator, stopping indicator light respectively.
A kind of water-bath type automatic dry-combustion-proof electric heater unit of the utility model, wherein the heater includes shell, setting
In the intracorporal heating core of shell, the heater temperature sensor is placed in shell, and the temperature switch is fixed by first flange
On shell, the first flange is placed in shell.
A kind of water-bath type automatic dry-combustion-proof electric heater unit of the utility model, wherein the liquid-level switch passes through second flange
It is fixed on cylinder.
A kind of water-bath type automatic dry-combustion-proof electric heater unit of the utility model, wherein being equipped with and the cylinder at the top of the cylinder
The exhaust pipe of intracoelomic cavity connection.
A kind of water-bath type automatic dry-combustion-proof electric heater unit of the utility model, wherein the cylinder bottom end is equipped with and the cylinder
The drain valve of intracoelomic cavity connection.
Compared with prior art, advantages and beneficial effects possessed by the utility model are as follows: the utility model barrel temperature
Sensor is used to detect the temperature of water in cylinder, and heater temperature sensor and temperature switch are used to detect the temperature of heater,
Liquid-level switch is for detecting the intracorporal fluid level condition of cylinder, water in the cylinder that explosion-proof control box is detected according to barrel temperature sensor
Temperature, to control the start and stop of heater, and then in application cylinder body water temperature, explosion-proof control box is according to heater temperature sensor
Prevent heater from leading to dry combustion method, explosion-proof control because of overheat to control the start and stop of heater with the temperature of temperature switch detection heater
Case processed detects the intracorporal water position status of cylinder according to liquid-level switch prevents cylinder from leading because water level is too low to control the start and stop of heater
Dry combustion method is caused, operation can be automatically stopped when can be realized in cylinder water shortage or excessively high heter temperature, electric heating is avoided to fill
Damage is set, is prolonged the service life, meanwhile, the risk for also avoiding electric heater unit dry combustion method from exploding improves the safety in use process
Coefficient.The utility model can be realized automatic control and the burning prevention function of bath temperature, and structure is simple, and performance is stablized, operation
Reliably, realize liquefied natural gas gasifying after temperature automatic control, it is unattended, reduce cost of labor, improve working efficiency and
Management level.
The utility model heater temperature sensor and temperature switch carry out double check to the state of temperature of heater, i.e.,
Make a failure, also can guarantee being normally carried out for temperature detection, guarantees that equipment operates normally, security performance is high.
A kind of water-bath type automatic dry-combustion-proof electric heater unit of the utility model is described further with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of water-bath type automatic dry-combustion-proof electric heater unit of the utility model；
Fig. 2 is a kind of control principle drawing of water-bath type automatic dry-combustion-proof electric heater unit of the utility model；
Fig. 3 is that the circuit of MCU microcontroller chip in a kind of water-bath type automatic dry-combustion-proof electric heater unit of the utility model is former
Reason figure；
Wherein: 1, cylinder；2, explosion-proof control box；3, heater；4, temperature switch；5, first flange；6, heating core；7, add
Hot device temperature sensor；8, drain valve；9, barrel temperature sensor；10, exhaust pipe；11, liquid-level switch；12, second flange；
13, the first temperature controller；14, the second temperature controller；15, relay；16, hand automatically selects knob；17, heater starting button；18,
Heater stop button；19, contactor；20, run indicator；21, stop indicator light.
Specific embodiment
The cylinder 1 of the utility model is equipped with gas outlet, main to be heated the water in cylinder 1 by heater 3, cylinder
Natural gas in body 1 exchanges heat with hot water, plays the role of indirect heating natural gas.
As shown in Figure 1 and Figure 2, a kind of water-bath type automatic dry-combustion-proof electric heater unit of the utility model, including it is cylinder 1, explosion-proof
Control cabinet 2, heater 3, heater 3 and explosion-proof control box 2 are arranged on cylinder 1, and liquid-level switch 11, cylinder are equipped at the top of cylinder 1
1 side wall of body is equipped with barrel temperature sensor 9, and heater 3 is equipped with heater temperature sensor 7, temperature switch 4, explosion-proof control
The first temperature controller 13, the second temperature controller 14, relay 15, contactor 19, the output of barrel temperature sensor 9 are equipped in case 2 processed
End and the input terminal of the first temperature controller 13 are electrically connected, the output of the output end, heater temperature sensor 7 of the first temperature controller 13
End is electrically connected with the input terminal of the second temperature controller 14 respectively, output end, the temperature switch 4, liquid-level switch of the second temperature controller 14
11 are electrically connected with the input terminal of relay 15 respectively, and the output end of relay 15 and the input terminal of contactor 19 are electrically connected,
The output end and heater 3 of contactor 19 are electrically connected.
Wherein, as shown in figure 3, being the circuit diagram of MCU microcontroller chip, the first temperature controller 13, the second temperature controller 14
The model used using MCU microcontroller chip, MCU microcontroller chip are as follows: STM32F103C8T6.
Barrel temperature sensor 9 is used to detect the temperature of water in cylinder 1, and heater temperature sensor 7 and temperature switch 4 are used
In the temperature of detection heater 3, liquid-level switch 11 is used to detect the fluid level condition in cylinder 1, and explosion-proof control box 2 is according to cylinder temperature
The temperature of water in the cylinder 1 that sensor 9 detects is spent, to control the start and stop of heater 3, and then the temperature of water in cylinder 1 is controlled, prevents
Quick-fried control cabinet 2 detects the temperature of heater 3 according to heater temperature sensor 7 and temperature switch 4, to control opening for heater 3
Stopping, prevents heater 3 because overheat leads to dry combustion method, explosion-proof control box 2 detects the water position status in cylinder 1 according to liquid-level switch 11,
It to control the start and stop of heater 3, prevents cylinder 1 from leading to dry combustion method because water level is too low, can be realized the water shortage in cylinder 1 or adds
Hot device 3 can be automatically stopped operation when the temperature is excessively high, avoid electric heater unit from damaging, prolong the service life, meanwhile, also avoid electricity from adding
The risk of thermal dry combustion method explosion, improves the safety coefficient in use process.The utility model can be realized oneself of bath temperature
Dynamic control and burning prevention function, performance is stablized, reliable for operation, realizes the automatic control of temperature after liquefied natural gas gasifying, nobody
It is on duty, reduce artificial, raising working efficiency and management level.
Further, 2 cabinet of explosion-proof control box is equipped with hand and automatically selects knob 16,3 start button of heater, heater
3 stop buttons, stop indicator light 21 at run indicator 20, and hand automatically selects button, 3 start button of heater, heater 3 and stops
Only button respectively with the input terminal of relay 15 be electrically connected, the output end of contactor 19 respectively with run indicator 20, stop
Indicator light 21 is electrically connected.Wherein, hand automatically selects and is correspondingly provided with manual mode and auto state on knob 16.
Hand automatically select knob 16 for switch select electric heater unit manually and automatically state, user can be according to realities
Border is selected, practical, and 3 start button of heater, 3 stop button of heater are used to select the work of electric heater unit
Make state, run indicator 20, the setting for stopping indicator light 21 intuitively observe the working condition of electric heater unit for user.
Further, heater 3 includes shell, is arranged in the intracorporal heating core 6 of shell, and heater temperature sensor 7 is placed in
In shell, temperature switch 4 is fixed on shell by first flange 5, and first flange 5 is placed in shell.Heter temperature sensing
Device 7 is used to detect the temperature of heating core 6 in shell, and first flange 5 is examined for the temperature in conductive case by temperature switch 4
It surveys the temperature of first flange 5, heater temperature sensor 7 and temperature switch 4 and dual inspection is carried out to the state of temperature of heater 3
It surveys, even if a failure, also can guarantee being normally carried out for temperature detection, guarantee that equipment operates normally.
Further, liquid-level switch 11 is fixed on cylinder 1 by second flange 12.
Further, it is equipped with the exhaust pipe 10 being connected to 1 inner cavity of cylinder at the top of cylinder 1, guarantees air pressure balance in cylinder 1.
Further, 1 bottom end of cylinder is equipped with the drain valve 8 being connected to 1 inner cavity of cylinder and is used for when equipment is without work
Empty the residual water in cylinder 1.
Specifically, manually starting knob when hand automatically selects the selection manual mode of knob 16 by lower heater 3, passing through
Relay 15 drives contactor 19 to be attracted, and heater 3 works, at this point, run indicator 20 is bright, manually presses lower heater 3
Stop knob, drive contactor 19 to disconnect by relay 15, heater 3 stops working, at this point, it is bright to stop indicator light 21.
When hand, which automatically selects knob 16, selects auto state, barrel temperature sensor 9 detects temperature in cylinder 1, and will
Signal is transferred to the first temperature controller 13, if temperature is higher than the set temperature of the first temperature controller 13, the first temperature in the cylinder 1 of its measurement
Signal is successively transferred to the second temperature controller 14, relay 15, contactor 19 by control instrument 13, and relay 15 drives contactor 19 disconnected
It opens, heater 3 stops working, at this point, it is bright to stop indicator light 21；If temperature is lower than the first temperature controller 13 in its cylinder 1 measured
Set temperature, signal is successively transferred to the second temperature controller 14, relay 15, contactor 19, relay by the first temperature controller 13
15 driving contactors 19 are attracted, and heater 3 starts work, at this point, run indicator 20 is bright.
Heater temperature sensor 7 detects the temperature of heater 3, and transmits a signal to the second temperature controller 14, if it is surveyed
Fixed 3 temperature of heater is higher than the set temperature of the second temperature controller 14, and signal is successively transferred to relay by the second temperature controller 14
15, contactor 19, relay 15 drive contactor 19 to disconnect, and heater 3 stops working, at this point, it is bright to stop indicator light 21；If its
3 temperature of heater of measurement is lower than the set temperature of the second temperature controller 14, and signal transmission is successively transferred to by the second temperature controller 14
Relay 15, contactor 19, relay 15 drive contactor 19 to be attracted, and heater 3 starts work, at this point, run indicator 20
It is bright.
Liquid-level switch 11 detects the fluid level condition in cylinder 1, if liquid level is lower than the setting liquid level of liquid-level switch 11, liquid level is opened
It closes 11 and signal is successively transferred to relay 15, contactor 19, relay 15 drives contactor 19 to disconnect, and heater 3 stops work
Make, at this point, it is bright to stop indicator light 21；If liquid level is higher than the setting liquid level of liquid-level switch 11, liquid-level switch 11 successively passes signal
It is defeated by relay 15, contactor 19, relay 15 drives contactor 19 to be attracted, and heater 3 starts work, at this point, operation instruction
Lamp 20 is bright.
The temperature of the detection detection heater 3 of temperature switch 4, if 3 temperature of heater of its measurement is higher than setting for temperature switch 4
Determine temperature, signal is successively transferred to relay 15, contactor 19 by temperature switch 4, and relay 15 drives contactor 19 to disconnect, adds
Hot device 3 stops working, at this point, it is bright to stop indicator light 21；If its 3 temperature of heater measured is lower than the setting temperature of temperature switch 4
Signal is successively transferred to relay 15, contactor 19 by degree, temperature switch 4, and relay 15 drives contactor 19 to be attracted, heater
3 starting work, at this point, run indicator 20 is bright.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines
In range.
Claims (6)
1. a kind of water-bath type automatic dry-combustion-proof electric heater unit, it is characterised in that: including cylinder, explosion-proof control box, heater, institute
It states heater and explosion-proof control box is arranged on cylinder, liquid-level switch is equipped at the top of the cylinder, the cylinder lateral wall is equipped with
Barrel temperature sensor, the heater are equipped with heater temperature sensor, temperature switch, are equipped in the explosion-proof control box
First temperature controller, the second temperature controller, relay, contactor, the output end of the barrel temperature sensor and the first temperature controller
Input terminal is electrically connected, the output end of first temperature controller, heater temperature sensor output end respectively with described second
The input terminal of temperature controller is electrically connected, the output end of second temperature controller, temperature switch, liquid-level switch respectively with the relay
The input terminal of device is electrically connected, and the output end of the relay and the input terminal of contactor are electrically connected, the contactor it is defeated
Outlet and heater are electrically connected.
2. a kind of water-bath type automatic dry-combustion-proof electric heater unit according to claim 1, it is characterised in that: the explosion-proof control
Box body processed is equipped with that hand automatically selects knob, heater starting button, heater stop button, run indicator, stopping refer to
Show that lamp, the hand automatically select button, heater starting button, heater the stop button input terminal with the relay respectively
It is electrically connected, the output end of the contactor is electrically connected with the run indicator, stopping indicator light respectively.
3. a kind of water-bath type automatic dry-combustion-proof electric heater unit according to claim 1 or 2, it is characterised in that: described to add
Hot device includes shell, is arranged in the intracorporal heating core of shell, and the heater temperature sensor is placed in shell, the temperature switch
It is fixed on shell by first flange, the first flange is placed in shell.
4. a kind of water-bath type automatic dry-combustion-proof electric heater unit according to claim 1, it is characterised in that: the liquid level is opened
Pass is fixed on cylinder by second flange.
5. a kind of water-bath type automatic dry-combustion-proof electric heater unit according to claim 1, it is characterised in that: the cylinder top
Portion is equipped with the exhaust pipe being connected to the cylinder lumen.
6. a kind of water-bath type automatic dry-combustion-proof electric heater unit according to claim 1, it is characterised in that: the cylinder bottom
End is equipped with the drain valve being connected to the cylinder lumen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820942183.2U CN208547286U (en) | 2018-06-19 | 2018-06-19 | A kind of water-bath type automatic dry-combustion-proof electric heater unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820942183.2U CN208547286U (en) | 2018-06-19 | 2018-06-19 | A kind of water-bath type automatic dry-combustion-proof electric heater unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208547286U true CN208547286U (en) | 2019-02-26 |
Family
ID=65422879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820942183.2U Active CN208547286U (en) | 2018-06-19 | 2018-06-19 | A kind of water-bath type automatic dry-combustion-proof electric heater unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208547286U (en) |
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2018
- 2018-06-19 CN CN201820942183.2U patent/CN208547286U/en active Active
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