CN209101553U

CN209101553U - Gas heater

Info

Publication number: CN209101553U
Application number: CN201821767391.XU
Authority: CN
Inventors: 芮明华
Original assignee: Shanghai Hongduan Precision Machinery Co Ltd
Current assignee: Shanghai Hongduan Precision Machinery Co Ltd
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2019-07-12
Anticipated expiration: 2028-10-30

Abstract

The utility model embodiment discloses a kind of gas heater.The gas heater of the utility model, comprising: furnace body, heater strip, the first thermocouple and controller.Furnace body is cylindrical, is horizontally disposed with, multiple cylinders is equipped at intervals in furnace body, the axial line of cylinder is overlapped with the axial line of furnace body, and heater strip is looped around on the side wall of cylinder, forms multiple heating cavities.Heater strip and controller are electrically connected.Venthole is equipped on the side wall of each cylinder, venthole is arranged alternately in left and right, is sequentially communicated heating cavity ecto-entad, forms gas passage, and furnace body is equipped with inlet plenum, and inlet plenum is connected to outermost heating cavity.First thermocouple is arranged in furnace body, for measuring the temperature of furnace body.The gas heater of the utility model, is arranged the gas passage to move in circles in furnace body, and along gas passage, the ecto-entad in furnace body moves in circles flowing gas, heats gas sufficiently, improves the heat utilization rate of heater.

Description

Gas heater

Technical field

The utility model embodiment is related to heater context, and in particular to a kind of gas heater.

Background technique

Electric heater refers to the electric appliance for reaching heating effect using electric energy.Electric heater heating power is high, has a wide range of application, Service life is long, high reliablity.The principle of heater is energy conversion, is exactly most widely that electric energy is converted into thermal energy.

Gas heater is the electric heater for heating to gas.Gas passage is equipped in heater, gas flows through When gas passage, gas is heated by heater strip.

The inventors of the present application found that gas heater in the prior art, the gas passage in heater is linear Formula, gas enter from heater one end, directly pass through through gas passage, the heat utilization rate of heater is low.

Utility model content

The purpose of this utility model is to provide a kind of gas heaters, can be circularly set by gas passage, improve and add The heat utilization rate of hot device.

The utility model embodiment provides a kind of gas heater, comprising: furnace body, heater strip, the first thermocouple and control Device；

The furnace body is cylindrical, is horizontally disposed with, and the side wall of the furnace body is equipped with insulating layer；

Multiple cylinders, the axial line of multiple cylinders and the axial line weight of the furnace body are equipped at intervals in the furnace body It closes；

The heater strip is looped around on the lateral wall of multiple cylinders, forms multiple heating cavities, and the heater strip is used It is heated in the heating cavity；

The cold end of the heater strip and the controller are electrically connected, and the controller is used to control adding for the heater strip Heat；

It is equipped with venthole on the side wall of each cylinder, each hole site of ventilating is arranged alternately in left and right, is made multiple described Heating cavity ecto-entad is sequentially communicated, and forms gas passage, and the blow vent of outermost layer cylinder is located at a left side for outermost layer cylinder End；

The right end of the furnace body is equipped with inlet plenum, and the inlet plenum is connected to outermost heating cavity；

The right side of the furnace body is equipped with air inlet pipe, and the left end of the air inlet pipe is connected to the inlet plenum, the air inlet The right end of pipe is equipped with the first connecting flange, and first connecting flange with air supply system for connecting；

The left side of the furnace body is equipped with escape pipe, and the right end of the escape pipe is connected to the cylinder of innermost layer, the outlet The left end of pipe is equipped with the second connecting flange, and second connecting flange with air accumulator for connecting；

First thermocouple is arranged in the furnace body, is electrically connected with the controller, for measuring the furnace body Temperature.

In a kind of feasible scheme, the quantity of the cylinder is four, and ecto-entad is followed successively by the first cylinder, the second circle Cylinder, the 3rd cylinder and the 4th cylinder；

The inner wall of the furnace body, described the first cylinder, described the second cylinder, described the 3rd cylinder and described the 4th cylinder it Between spaced set.

In a kind of feasible scheme, the size ecto-entad of each venthole is sequentially reduced.

In a kind of feasible scheme, it is equipped with pressure inductor at the venthole of described the 4th cylinder, is used for detection gas Pressure.

In a kind of feasible scheme, axial line of the axial line of the air inlet pipe and the escape pipe with the furnace body It is overlapped, and the aperture of the air inlet pipe and the escape pipe is identical as the internal diameter of described the 4th cylinder.

In a kind of feasible scheme, the heater strip includes: the first heater strip and the second heater strip；

First heater strip is looped around on the lateral wall of described the first cylinder and described the second cylinder, second heating Silk is looped around on the lateral wall of described the 3rd cylinder and described the 4th cylinder.

In a kind of feasible scheme, the air inlet pipe is equipped with the second thermocouple, second thermocouple and the control Device processed is electrically connected, for measuring the temperature in air inlet pipe；

The escape pipe is equipped with third thermocouple, and the third thermocouple and the controller are electrically connected, for surveying Measure endotracheal temperature.

In a kind of feasible scheme, the insulating layer is alumina silicate insulating layer.

In a kind of feasible scheme, the escape pipe is equipped with flowmeter, for measuring gas flow.

In a kind of feasible scheme, the escape pipe is equipped with check valve, for preventing gas backstreaming.

It is intracavitary in furnace body to be equipped with multiple cylinders, furnace based on above scheme it is found that the utility model is by setting furnace body One end of body is equipped with inlet plenum.Multiple cylinder interval settings are equipped with heating wire in the outside of the circumferential side wall of cylinder, are formed more A heating cavity.Venthole is equipped on the side wall of multiple cylinders, venthole left and right on multiple cylinders is arranged alternately, makes multiple Heating cavity ecto-entad is sequentially communicated, and forms the gas passage to move in circles, and outermost heating cavity and inlet plenum Connection.After gas enters inlet plenum by air inlet pipe, along gas passage, ecto-entad moves in circles flowing in furnace body, extends The distance that gas is passed through in furnace body, heats gas adequately, improves the heat utilization rate of heater.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of the gas heater in the utility model embodiment；

Fig. 2 is the enlarged drawing at A in Fig. 1 in the utility model embodiment；

Fig. 3 is the enlarged drawing at B in Fig. 1 in the utility model embodiment.

Figure label:

1, furnace body；11, left side wall；12, right side wall；13, insulating layer；2, heater strip；21, the first heater strip；22, second adds Heated filament；31, the first thermocouple；32, the second thermocouple；33, third thermocouple；4, cylinder；41, the first cylinder；42, the second circle Cylinder；43, the 3rd cylinder；44, the 4th cylinder；401, right side plate；402, venthole；5, heating cavity；61, air inlet pipe；611, One connecting flange；62, escape pipe；621, the second connecting flange；7, pressure inductor；8, flowmeter；9, check valve.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to The range of the utility model protection.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " axial direction ", " radial direction ", " circumferential direction " etc. The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure It makes and operates, therefore should not be understood as limiting the present invention.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, be also possible to integral； It can be mechanical connection, be also possible to be electrically connected, be also possible to communication connection；It can be and be directly connected to, centre can also be passed through Medium is indirectly connected with, and can be the connection inside two elements or the interaction relationship of two elements, unless otherwise clear Restriction.For the ordinary skill in the art, above-mentioned term can be understood in the utility model as the case may be In concrete meaning.

The technical solution of the utility model is described in detail with specifically embodiment below.These are specific below Embodiment can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.

Fig. 1 is the structural schematic diagram of the gas heater in the utility model embodiment, and Fig. 2 is the utility model embodiment In Fig. 1 in enlarged drawing at A, Fig. 3 is the enlarged drawing in Fig. 1 in the utility model embodiment at B.Such as Fig. 1 to Fig. 3 institute Show, the gas heater of the present embodiment, comprising: furnace body 1, heater strip 2, the first thermocouple 31 and controller.

Furnace body 1 is cylindric furnace body, is equipped with inner cavity in furnace body 1.Furnace body 1 is horizontally disposed, the left and right sides point of furnace body 1 It She You not left side wall 11 and right side wall 12.Left side wall 11 and right side wall 12 close the left and right side of furnace body 1.The circumference of furnace body 1 Side wall be equipped with insulating layer 13.

Multiple cylinders 4 are equipped in the inner cavity of furnace body 1.Multiple cylinders 4 are spaced apart from each other setting, outermost cylinder 4 and furnace body 1 Side wall between also be provided with spacing.The axial line of multiple cylinders 4 is overlapped with the axial line of furnace body 1.The left plate of multiple cylinders 4 with The left side wall 11 of furnace body is overlapped (shared), and the right side plate 401 of multiple cylinders 4 is overlapped (i.e. multiple cylinders share a right side plate). The left plate (i.e. furnace body left side wall 11) and right side plate 401 of cylinder 4 close the left and right side of cylinder 4.

Heater strip 2 is looped around on the lateral wall of the circumference of multiple cylinders 4, forms multiple heating cavities 5, and heater strip 2 is used for Heating cavity 5 is heated, i.e. the gas heating of the heated cavity 5 of convection current.

The cold end of heater strip 2 and controller (being not drawn into figure) are electrically connected, and controller is used to control adding for heater strip 2 Heat, i.e., for controlling heating of the heater strip 2 to heating cavity 5.

Venthole 402 is equipped on the side wall of the circumference of each cylinder 4.The position of the venthole 402 of each cylinder 4 is in Left and right is arranged alternately, i.e., the venthole 402 in adjacent cylinders is located at the left and right sides of adjacent cylinders.And the circle with furnace body 1 The blow vent 402 of the adjacent outermost cylinder 4 of all side walls is located at the left end of outermost cylinder 4.Venthole 402 makes multiple add Hot 5 ecto-entad of cavity is sequentially communicated, and forms the gas passage to move in circles.

The right end of furnace body 1 is equipped with inlet plenum 14.Inlet plenum 14 is by right side wall 12, the circle of right side plate 401 and furnace body 1 All inner sidewalls surround.It also is provided with venthole 402 in the outside of the right side plate 401 of cylinder 4, adds inlet plenum 14 with outermost Hot cavity 5 is connected to.

The right side of furnace body 1 is equipped with air inlet pipe 61.The left end of air inlet pipe 61 is connected to inlet plenum 14, the right end of air inlet pipe 61 Equipped with the first connecting flange 611, the first connecting flange 611 makes gas enter inlet plenum 14 for connecting with air supply system It is interior.

The left side of furnace body 1 is equipped with escape pipe 62.The right end of escape pipe 62 is connected to the cylinder 4 of innermost layer, escape pipe 62 Left end is equipped with the second connecting flange 621, and for connecting with air accumulator, the gas after making heating enters the second connecting flange 621 In air accumulator.

First thermocouple 31 is arranged in furnace body 1.The cold end and controller of first thermocouple 31 are electrically connected, the first thermoelectricity Even 31 for measuring the temperature in furnace body 1, and by controller to furnace body temperature control.

It is intracavitary in furnace body to be equipped with multiple circles through the above it is not difficult to find that the utility model is by setting furnace body One end of cylinder, furnace body is equipped with inlet plenum.Multiple cylinder interval settings are equipped with heating wire in the outside of the circumferential side wall of cylinder, Form multiple heating cavities.Venthole is equipped on the side wall of multiple cylinders, venthole left and right on multiple cylinders is arranged alternately, Be sequentially communicated multiple heating cavity ecto-entads, form the gas passage to move in circles, and outermost heating cavity with into Gas chamber's connection.After gas enters inlet plenum by air inlet pipe, along gas passage, ecto-entad moves in circles stream in furnace body It is dynamic, the distance that gas is passed through in furnace body is extended, heats gas adequately, improves the heat energy utilization of heater Rate.

Optionally, the quantity of the cylinder 4 in furnace body 1 is four, and four cylinder ecto-entads are followed successively by the first cylinder 41, the Two cylinders 42, the 3rd cylinder 43 and the 4th cylinder 44.Wherein the venthole 402 of the first cylinder 41 is located at the circumference of the first cylinder 41 The left side of side wall, the venthole 402 or so on remaining each cylinder are arranged alternately.And the circumferential side wall of the first cylinder 41 and furnace body 1 The outermost heating cavity 5 surrounded is connected to inlet plenum 14.

It is spaced between the circumferential inner wall of furnace body 1, the first cylinder 41, the second cylinder 42, the 3rd cylinder 43 and the 4th cylinder 44 Spacing it is identical.The height of i.e. each heating cavity 5 is identical.

Further, venthole 402 in the first cylinder 41, the second cylinder 42, the 3rd cylinder 43 and the 4th cylinder 44 Size ecto-entad is sequentially reduced, and to reduce the speed that gas flows in gas passage, fills gas in heater The heating divided.

Further, pressure inductor 7 is equipped at the venthole 402 in the 4th cylinder 44 of innermost layer.Pressure inductor 7 It is arranged in front of the venthole 402 in the 4th cylinder 44, the gas pressure at venthole 402 for detecting the 4th cylinder 44 Power.

Further, the axial line of air inlet pipe 61 and escape pipe 62 is overlapped with the axial line of furnace body 1, i.e., with each cylinder Axial line is overlapped.And the aperture of air inlet pipe 61 and escape pipe 62 is identical as the internal diameter of the 4th cylinder 44 of innermost layer, it is convenient into The connection of tracheae and escape pipe.

Further, heater strip 2 includes the first heater strip 21 and the second heater strip 22.

First heater strip 21 is looped around (circumference on the first cylinder 41 of opposite exterior lateral sides and the lateral wall of the second cylinder 42 The outside of wall), the second heater strip 22 is looped around the 3rd cylinder 43 of relative inner and the lateral wall (circumferential side wall of the 4th cylinder 44 Outside) on.Since the volume of the heating cavity in outside is larger, using two heater strips, the heating power of the heater strip in outside It increases, so that temperature uniformity is more preferable in furnace body.In the present embodiment, the heating power of the first heater strip 21 is 3KW, the second heating The heating power of silk 22 is 2KW.

Optionally, air inlet pipe 61 is equipped with the second thermocouple 32.Second thermocouple 32 is electrically connected with controller, the second heat Galvanic couple 32 is used to measure the temperature in air inlet pipe 61, i.e. measurement gas enters the temperature before heater.

Escape pipe 62 is equipped with third thermocouple 33.Third thermocouple 33 and controller are electrically connected, third thermocouple 33 For measuring the temperature in escape pipe 62, i.e. temperature after measurement gas outflow heater.

Optionally, the insulating layer 13 on the circumferential side wall of furnace body 1 is alumina silicate insulating layer.It is kept the temperature relative to conventional asbestos Layer, alumina silicate insulating layer better quality, and alumina silicate is nontoxic, it is more environmentally-friendly.

Optionally, escape pipe 62 is equipped with flowmeter 8, for detecting the gas flow in escape pipe 62.

Optionally, escape pipe 62 is equipped with check valve 9, prevents gas from generating reflux because of the variation of pressure.

In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down " It can be that fisrt feature and second feature directly contact or fisrt feature and second feature pass through intermediary mediate contact.

Moreover, fisrt feature can be fisrt feature in second feature above the second feature " above ", " above " and " above " Directly above or obliquely above, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature is in second feature " it Under ", " lower section " and " following " can be fisrt feature and be directly under or diagonally below the second feature, or be merely representative of fisrt feature water Flat height is lower than second feature.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc., it is intended that specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with It can be combined in any suitable manner in one or more any embodiment or example.In addition, without conflicting with each other, this The technical staff in field can be by the spy of different embodiments or examples described in this specification and different embodiments or examples Sign is combined.

Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new The range of each embodiment technical solution of type.

Claims

1. a kind of gas heater characterized by comprising furnace body, heater strip, the first thermocouple and controller；

Multiple cylinders are equipped at intervals in the furnace body, the axial line of multiple cylinders is overlapped with the axial line of the furnace body；

The heater strip is looped around on the lateral wall of multiple cylinders, forms multiple heating cavities, the heater strip for pair The heating cavity heating；

The cold end of the heater strip and the controller are electrically connected, and the controller is used to control the heating of the heater strip；

It is equipped with venthole on the side wall of each cylinder, each hole site of ventilating is arranged alternately in left and right, makes multiple heating Cavity ecto-entad is sequentially communicated, and forms gas passage, and the blow vent of outermost layer cylinder is located at the left end of outermost layer cylinder；

The right side of the furnace body is equipped with air inlet pipe, and the left end of the air inlet pipe is connected to the inlet plenum, the air inlet pipe Right end is equipped with the first connecting flange, and first connecting flange with air supply system for connecting；

The left side of the furnace body is equipped with escape pipe, and the right end of the escape pipe is connected to the cylinder of innermost layer, the escape pipe Left end is equipped with the second connecting flange, and second connecting flange with air accumulator for connecting；

First thermocouple is arranged in the furnace body, is electrically connected with the controller, for measuring the temperature of the furnace body Degree.

2. gas heater according to claim 1, which is characterized in that the quantity of the cylinder is four, ecto-entad It is followed successively by the first cylinder, the second cylinder, the 3rd cylinder and the 4th cylinder；

Between the inner wall of the furnace body, described the first cylinder, described the second cylinder, described the 3rd cylinder and described the 4th cylinder etc. Spacing setting.

3. gas heater according to claim 2, which is characterized in that the size ecto-entad of each venthole is successively Reduce.

4. gas heater according to claim 3, which is characterized in that be equipped with pressure at the venthole of described the 4th cylinder Inductor is used for detection gas pressure.

5. gas heater according to claim 2, which is characterized in that the axial line of the air inlet pipe and the escape pipe It is overlapped with the axial line of the furnace body, and internal diameter of the aperture of the air inlet pipe and the escape pipe with described the 4th cylinder It is identical.

6. gas heater as claimed in any of claims 2 to 5, which is characterized in that the heater strip includes: One heater strip and the second heater strip；

First heater strip is looped around on the lateral wall of described the first cylinder and described the second cylinder, the second heater strip ring It is wound on the lateral wall of described the 3rd cylinder and described the 4th cylinder.

7. gas heater according to claim 1, which is characterized in that the air inlet pipe is equipped with the second thermocouple, institute It states the second thermocouple and the controller is electrically connected, for measuring the temperature in air inlet pipe；

The escape pipe is equipped with third thermocouple, and the third thermocouple and the controller are electrically connected, for measuring Endotracheal temperature.

8. gas heater according to claim 1, which is characterized in that the insulating layer is alumina silicate insulating layer.

9. gas heater according to claim 1, which is characterized in that the escape pipe is equipped with flowmeter, for surveying Measure gas flow.

10. gas heater according to claim 1, which is characterized in that the escape pipe is equipped with check valve, for preventing Only gas backstreaming.