CN210241981U - Electric heating device for gas - Google Patents
Electric heating device for gas Download PDFInfo
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- CN210241981U CN210241981U CN201920978630.4U CN201920978630U CN210241981U CN 210241981 U CN210241981 U CN 210241981U CN 201920978630 U CN201920978630 U CN 201920978630U CN 210241981 U CN210241981 U CN 210241981U
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Abstract
The utility model discloses an electric heating device for gas, which comprises an electric heater and an electric control cabinet electrically connected with the electric heater, wherein the electric heater comprises a common electric heater and a standby electric heater arranged in a redundant way, the electric control cabinet is provided with a heating loop for controlling the common electric heater and a standby heating loop for controlling the standby electric heater, the standby electric heater is the same as the common electric heater, and the standby heating loop is the same as the heating loop; the heating loop comprises a button switch, an alternating current contactor, a first temperature controller, a second temperature controller, an ammeter, a voltmeter, a thyristor and a circuit breaker. The utility model can realize the accurate temperature rise control of the gas medium, has high heating efficiency, and can realize the functions of short circuit protection, over-temperature power-off protection and the like of the electric heater; a common and at least one standby electric heater structure is arranged, so that the running stability of the device is ensured.
Description
Technical Field
The utility model relates to an electric heater unit field especially relates to an electric heater unit for gas.
Background
Electrical heating is the process of converting electrical energy into thermal energy. An electric heater is an international popular electric heating device, and is used for heating, keeping warm or heating flowing liquid and gaseous media in industrial production. When the heating medium passes through the heating cavity of the electric heater under the action of pressure, the huge heat generated in the working process of the electric heating element is uniformly taken away by adopting the fluid thermodynamic principle, so that the temperature of the heated medium meets the process requirements of users.
When the electric heater is used for heating a gas medium, how to accurately control the temperature in the heating process and carry out effective overheat protection is an important performance parameter of the electric heater.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model aims at providing an electric heater unit for it is gaseous can effectually heat the intensification to gas medium, and heating efficiency is high, the accuse temperature is accurate and can effectively realize overheat protection.
In order to achieve the above object, the utility model discloses a technical scheme be: the electric heating device for the gas is characterized in that the electric heater comprises a shell and a heating element, the heating element is arranged inside the shell, a medium inlet and a medium outlet which are communicated with an inner cavity of the shell are formed in the shell, a first temperature detection device is arranged at the medium outlet, a second temperature detection device is arranged in the shell in a contact manner with a medium, a heating loop for controlling the electric heater is arranged on the electric control cabinet, and the heating loop comprises a button switch, an alternating current contactor, a first temperature controller, a second temperature controller, an ammeter, a voltmeter, a thyristor and a circuit breaker; the alternating current contactor receives a switching signal of the button switch to realize on-off control of the heating element; the first temperature controller receives a temperature measuring point signal of the first temperature detecting device and controls the heating power of the heating element; the second temperature controller receives a temperature measuring point signal of the second temperature detecting device and outputs a switching value signal to the alternating current contactor, so that overtemperature power-off protection of the electric heater is realized; the circuit breaker detects the current of the heating loop to carry out short-circuit protection on the electric heater; the ammeter and the voltmeter are used for displaying the current and the voltage of the heating loop; the thyristor is connected with a power supply and is used for controlling the input voltage of the heating loop.
Preferably, electric heater includes a commonly used electric heater and a standby electric heater of redundant setting, standby electric heater is the same with commonly used electric heater, heating circuit is including the commonly used heating circuit who is used for controlling commonly used electric heater and the standby heating circuit who is used for controlling standby electric heater, standby heating circuit is the same with commonly used heating circuit.
Preferably, the heating elements are a plurality of groups of tube heaters which are arranged in parallel, the heating elements are detachably mounted inside the shell, a sealing device is arranged between the heating elements and the shell, the electric heater is vertically arranged and fixedly connected with a wall body, the medium inlet is arranged at the lower part of the shell, the medium outlet is arranged at the upper part of the shell, and a heat preservation device is arranged at the periphery of the shell.
Preferably, the heating circuit further comprises a selection switch for selecting manual or automatic control of the electric heater.
Preferably, the medium contact portion of the electric heater is made of stainless steel.
Preferably, the control cabinet is of an upper inlet wire and upper outlet wire structure.
Preferably, the electric heating device is further provided with a no-wind power-off protection module, the no-wind power-off protection module comprises an air volume sensor arranged at a medium inlet or the front end of the electric heater, and the air volume sensor sends a switching signal to the alternating current contactor to control the on-off of the electric heater so as to realize a no-wind power-off protection function.
The utility model has the advantages that: 1. when the gas is heated up, the electric heater is accurately controlled through the heating loop, the heating efficiency is high, and the functions of short circuit protection, over-temperature power-off protection and the like of the electric heater can be realized; 2. a common electric heater structure and a standby electric heater structure are arranged, so that the running stability of the device is ensured.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of an electric heater in embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of a control cabinet in embodiment 2 of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Example 1
Referring to fig. 1 to 2, an embodiment of the present invention includes:
an electric heating device for gas comprises an electric heater 1 and an electric control cabinet 2 electrically connected with the electric heater 1, wherein the electric heater 1 is vertically arranged and fixedly connected with a wall body, the electric heater 1 comprises a shell 101, a heating element 102 and a wiring chamber 107, the heating element 102 is a plurality of groups of tubular heaters arranged in parallel, the heating element 102 and the wiring chamber 107 are detachably mounted on the shell 101, a medium inlet 103 and a medium outlet 104 communicated with the inner cavity of the shell 101 are arranged on the shell 101, the medium inlet 103 is arranged at the lower part of the shell 101, the medium outlet 104 is arranged at the upper part of the shell 101, a first flange 106 is arranged at the upper end of the shell 101, the heating element 102 and the wiring chamber 107 are mounted on a second flange 109, and the heating element 102 and the wiring chamber 107 are detachably mounted above the shell 101 through the first flange 106 and the second flange 109, a sealing ring is arranged between the first flange 106 and the second flange 109, a first temperature detection device 110 is arranged at the medium outlet 104, a second temperature detection device 105 is installed on the first flange 106, the second temperature detection device 105 is arranged in contact with a medium in the shell 101, the contact part of the electric heater 1 and the medium is made of stainless steel, the terminals of the heating element 102, the first temperature detection device 110 and the second temperature detection device 105 are all arranged in the wiring chamber 107, a cable joint 108 is arranged on the wiring chamber, and the terminal of the electric element of the electric heater 1 is electrically connected with the electric control cabinet 2 through the cable joint 108.
The electric control cabinet 2 is provided with a heating loop for controlling the electric heater 1, the heating loop comprises a button switch, an alternating current contactor, a selection switch, a first temperature controller, a second temperature controller, an ammeter, a voltmeter, a thyristor and a breaker, the button switch sends a switch signal to the alternating current contactor to realize on-off control of the heating element 102, the first temperature controller receives a temperature measuring point signal of the first temperature detection device 110 and controls the heating power of the heating element 102, the second temperature controller receives a temperature measuring point signal of the second temperature detection device 105 and outputs a switching value signal to the alternating current contactor to realize over-temperature power-off protection of the electric heater 1, the breaker detects the current of the heating loop to perform short-circuit protection on the electric heater 1, and the ammeter and the voltmeter are used for displaying the current and the voltage of the heating loop, the thyristor is connected with a power supply and used for controlling the input voltage of the electric heater, the heating loop further comprises a selection switch used for selecting manual or automatic control of the electric heater 1, and the electric control cabinet 2 is of an upper-inlet-line upper-outlet structure.
Example 2
Referring to fig. 3, in this embodiment, the electric heating apparatus includes an electric control cabinet 2, a common electric heater 1 electrically connected to the electric control cabinet 2, and a standby electric heater 3 provided redundantly, the common electric heater 1 has the same structure as the electric heater in embodiment 1, the standby electric heater 3 is the same as the common electric heater 1, a common heating circuit for controlling the common electric heater 1 and a standby heating circuit for controlling the standby electric heater 2 are provided on the electric control cabinet 2, the standby heating circuit is the same as the common heating circuit, when the electric control cabinet 2 is in normal use, the common electric heater 1 is controlled to heat gas by the common heating circuit of the electric control cabinet 2, the working method of the embodiment 1 is the same, when the common electric heater 1 fails, the common electric heater 1 is turned off, and the standby electric heater 3 is turned on to heat gas by the electric control cabinet 1, the stable operation of the heating device is ensured.
Referring to fig. 4, in the present embodiment, the common heating circuit includes: selection switch 2041: when the common electric heater 1 works, the control mode is selected to be manual or automatic; push-button switch 2061: outputting a switching value signal to the alternating current contactor 2091 for controlling the on-off control of the common electric heater 1; the first temperature controller 2051: receiving a temperature signal of a first temperature detection device in the electric heater 1 for controlling the heating power of the electric heater 1; the second temperature controller 2052: receiving a temperature signal of a second temperature detection device in the common electric heater 1, and outputting a switching value signal to the alternating current contactor 2091 to perform overtemperature power-off protection on the common electric heater 1; first indicator lamp 2071, second indicator lamp 2081: respectively for indicating the manual or automatic operating state of the conventional electric heater 1; the first thyristor 2101: an input voltage connected with a power supply and used for controlling the common electric heater 1; the first connection terminal 2111 is electrically connected to a cable connector of the electric heater 1.
The backup heating circuit includes: the selection switch 2042, the button switch 2062, the third temperature controller 2053, the fourth temperature controller 2054, the third indicator light 2072, the fourth indicator light 2082, the ac contactor 2092, the second thyristor 2102 and the second connection terminal 2112.
The circuit breaker 201: the heating device is respectively connected with the common heating loop and the standby heating loop, and short-circuit protection is carried out on the heating loops when the electric heater works; voltmeter 202 and ammeter 203: the electric heater is used for displaying the working voltage and the working current of the heating loop when the electric heater works; ground bus 212: and the electric control cabinet 2 is connected with a ground wire.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. An electric heating device for gas comprises an electric heater and an electric control cabinet electrically connected with the electric heater, and is characterized in that the electric heater comprises a shell and a heating element, the heating element is arranged in the shell, a medium inlet and a medium outlet which are communicated with an inner cavity of the shell are arranged on the shell, a first temperature detection device is arranged at the medium outlet, a second temperature detection device is arranged in the shell in contact with a medium, a heating loop for controlling the electric heater is arranged on the electric control cabinet, and the heating loop comprises a button switch, an alternating current contactor, a first temperature controller, a second temperature controller, an ammeter, a voltmeter, a thyristor and a circuit breaker; the alternating current contactor receives a switching signal of the button switch to realize on-off control of the heating element; the first temperature controller receives a temperature measuring point signal of the first temperature detecting device and controls the heating power of the heating element; the second temperature controller receives a temperature measuring point signal of the second temperature detecting device and outputs a switching value signal to the alternating current contactor, so that overtemperature power-off protection of the electric heater is realized; the circuit breaker detects the current of the heating loop to carry out short-circuit protection on the electric heater; the ammeter and the voltmeter are used for displaying the current and the voltage of the heating loop; the thyristor is connected with a power supply and is used for controlling the input voltage of the heating loop.
2. An electric heating apparatus for gas as claimed in claim 1, wherein the electric heater comprises a common electric heater and a redundant stand-by electric heater, the stand-by electric heater is the same as the common electric heater, the heating circuit comprises a common heating circuit for controlling the common electric heater and a stand-by heating circuit for controlling the stand-by electric heater, and the stand-by heating circuit is the same as the common heating circuit.
3. The electric heating device for gas of claim 1, wherein the heating elements are a plurality of sets of tubular heaters arranged in parallel, the heating elements are detachably mounted inside the housing, a sealing device is arranged between the heating elements and the housing, the electric heaters are vertically arranged and fixedly connected with the wall, the medium inlet is arranged at the lower part of the housing, the medium outlet is arranged at the upper part of the housing, and a heat preservation device is arranged at the periphery of the housing.
4. An electric heating device for gases as claimed in claim 1 wherein the heating circuit further comprises a selection switch for selecting manual or automatic control of the electric heater.
5. An electric heating apparatus for gas as claimed in claim 1, wherein the medium contact portion of the electric heater is made of stainless steel.
6. An electrical heating apparatus for gases as claimed in claim 1 wherein the control cabinet is of the top-on-lead configuration.
7. An electric heating device for gas as claimed in claim 1, wherein said electric heating device is further provided with a windless power-off protection module, said windless power-off protection module comprises an air volume sensor disposed at the medium inlet or the front end of the electric heater, said air volume sensor sends a switch signal to the ac contactor to control the on/off of the electric heater to realize the windless power-off protection function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920978630.4U CN210241981U (en) | 2019-06-27 | 2019-06-27 | Electric heating device for gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920978630.4U CN210241981U (en) | 2019-06-27 | 2019-06-27 | Electric heating device for gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210241981U true CN210241981U (en) | 2020-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920978630.4U Active CN210241981U (en) | 2019-06-27 | 2019-06-27 | Electric heating device for gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210241981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113411098A (en) * | 2021-06-08 | 2021-09-17 | 深圳市美嘉光电科技有限公司 | Wireless voice transmission chip set and application device thereof |
-
2019
- 2019-06-27 CN CN201920978630.4U patent/CN210241981U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113411098A (en) * | 2021-06-08 | 2021-09-17 | 深圳市美嘉光电科技有限公司 | Wireless voice transmission chip set and application device thereof |
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