An external flameless waterproof felt heating adhesion aid

Abstract

The present application relates to a kind of outer flameless waterproof felt heating adhesive auxiliary device;Including: under-burning portion, under-burning portion includes initial stage combustion cylinder, combustion gas driving mechanism is arranged in the tail of initial stage combustion cylinder, under-burning flue gas outlet is arranged in the head of initial stage combustion cylinder, combustion mixer is fixedly connected in the inner wall of initial stage combustion cylinder, air inlet pipe is fixedly connected in the side wall of initial stage combustion cylinder, gas pipe is arranged in the tail of initial stage combustion cylinder;Complete combustion portion, complete combustion portion includes complete combustion cylinder, the tail of complete combustion cylinder is sealingly connected to the head of initial stage combustion cylinder, air outlet is arranged in the head of complete combustion cylinder, porous heating element is fixedly connected in the inner wall of complete combustion cylinder, the front end of gas pipe extends into porous heating element;Outer flame combustion structure is improved into segmented combustion structure, first liquefied gas is under-oxygen combustion in spray gun main body structure, then over-oxygen combustion is carried out in the position of spray gun air outlet, and the possibility of producing air flame in air outlet is reduced by long combustion route.

Description

TECHNICAL FIELD

[0001] The application is a heating device for waterproof felt adhesion, in particular a waterproof felt heating adhesion auxiliary device without external flame. BACKGROUND

[0002] As the main waterproof solution for building roofs and basements at present, waterproof felt is mainly heated and softened by liquefied gas flame spray guns during construction, and then bonded to achieve sealing and fixation between waterproof felts. The current liquefied gas flame spray gun is generally an open flame type, which is not concentrated enough in heat transfer. In addition to the flame in contact with the waterproof felt, the rest of the heat is all dissipated outward, which is a waste. Moreover, the outward dissipated heat will make the operating environment temperature higher, which will additionally increase the construction difficulty of the construction personnel in summer. In addition, the open flame heating is easy to ignite other things around, and the flame is also easy to spread to other positions with the flow of air, which brings certain safety hazards to construction. SUMMARY

[0003] The technical problem to be solved by the application is to overcome the technical problems in the prior art and provide a waterproof felt heating adhesion auxiliary device without external flame.

[0004] The technical scheme adopted by the application to solve the technical problem is:

[0005] A waterproof felt heating adhesion auxiliary device without external flame, comprising:

[0006] An under-combustion part, the under-combustion part comprising a primary combustion cylinder, a combustion gas driving mechanism being arranged at the tail of the primary combustion cylinder, an under-combustion flue gas outlet being arranged at the head of the primary combustion cylinder, a combustion mixer being fixedly connected to the inner wall of the middle part of the primary combustion cylinder, an air inlet pipe being fixedly connected to the side wall of the primary combustion cylinder, and a gas pipe being arranged at the tail of the primary combustion cylinder;

[0007] A complete combustion part, the complete combustion part comprising a complete combustion cylinder, the tail of the complete combustion cylinder being sealingly connected to the head of the primary combustion cylinder, an air outlet being arranged at the head of the complete combustion cylinder, a porous heating body being fixedly connected to the inner wall of the complete combustion cylinder, and the front end of the gas pipe extending into the porous heating body; a forced air inlet cylinder being connected to the side wall of the complete combustion cylinder, the axis of the forced air inlet cylinder being directed toward the air outlet at the head of the complete combustion cylinder;

[0008] Wherein, a partition plate is fixedly arranged in the primary combustion cylinder, the primary combustion cylinder is divided into a flue gas flow area and a mixed combustion area by the partition plate, a front bending part and a rear bending part are arranged at both ends of the partition plate respectively, the front bending part and the rear bending part are sealingly connected to the inner wall of the primary combustion cylinder, and the mixed combustion area is located in the area enclosed by the front bending part and the rear bending part;

[0009] The combustion mixer comprises a primary combustion net with a porous structure, which is suspended and fixed in the primary combustion cylinder by a partition plate and is embedded in a mixed combustion zone, and is made of metal sintered material.

[0010] The air inlet pipe extends through the side wall of the primary combustion cylinder and into the inlay groove.

[0011] The middle part of the gas pipe is connected with a guide pipe with a porous structure, which is embedded on the bottom surface of the inlay groove.

[0012] The combustion gas driving mechanism comprises a tail fan arranged at the tail part of the primary combustion cylinder, and the driving direction of the tail fan is towards the head part of the primary combustion cylinder.

[0013] The forced air inlet cylinder is provided with a forced air inlet fan, and the driving direction of the forced air inlet fan is towards the head part of the complete combustion cylinder.

[0014] As a further improvement of the present application, a connecting opening is arranged at the bottom of the radial axis of the primary combustion cylinder, an annular connecting ring is arranged at the edge of the connecting opening, the air inlet pipe array is fixed on a sealing plate, and the outer edge of the sealing plate is fixed on the connecting ring by bolts; the air inlet pipe is independently fixed on a sealing plate, so that each air inlet pipe can be separated from the primary combustion cylinder, the maintenance cost is lower than that of welding fixation, and the connecting opening after disassembly is convenient for cleaning of the primary combustion net.

[0015] As a further improvement of the present application, a protective net is arranged at the position corresponding to the connecting opening on the outer wall of the primary combustion cylinder, an annular fixing ring is arranged at the edge of the protective net, and the fixing ring is fixed on the outer edge wall surface of the primary combustion cylinder corresponding to the connecting opening by bolts; the protective net can prevent foreign matters from entering the combustion zone and causing damage to the primary combustion net.

[0016] As a further improvement of the present application, a heat insulation layer is arranged on the top wall surface of the radial axis of the primary combustion cylinder and the complete combustion cylinder; the heat insulation layer can reduce the surface temperature of the primary combustion cylinder and the complete combustion cylinder and improve the safety of operation.

[0017] As a further improvement of the present application, a lifting plate is fixed on the top wall surface of the radial axis of the primary combustion cylinder by bolts, a plurality of guide vanes parallel to the axis of the air inlet pipe are integrally arranged on the bottom of the lifting plate, and guide gaps are arranged between the guide vanes; the guide vanes can increase the speed of the primary combustion flue gas by reducing the flow cross section of the primary combustion flue gas, increase the kinetic energy thereof, and ensure the supply efficiency of the flue gas of the complete combustion net.

[0018] As a further improvement of the present application, a spoiler shell is arranged at the head of the complete combustion cylinder, a ventilation hole is arranged in the middle of the spoiler shell and communicated with the complete combustion cylinder, a plurality of partition plates are arranged in a straight line array in the ventilation hole, the partition plates are arranged parallel to the axis of the complete combustion cylinder, an arc-shaped bending part is integrally connected at the end of the partition plate, an arc-surface structured waterproof felt extrusion surface is arranged at the outer side of the bending part, and an arc-surface structured airflow spoiler surface is arranged at the inner side of the bending part; the spoiler shell can not only prevent foreign matters from entering the complete combustion cylinder, but also the bending part at the front end of the partition plate can generate airflow disturbance at the air outlet position of the complete combustion cylinder, so as to ensure the contact efficiency of hot air with the waterproof felt close to the air outlet, and in addition, the bending part can also realize adhesion and extrusion of the waterproof felt, so as to improve the adhesion quality.

[0019] As a further improvement of the present application, a protection valve is arranged at the tail of the forced air inlet cylinder, the protection valve comprises a valve plate fixed to the inner wall of the forced air inlet cylinder, a plurality of long strip-shaped valve holes are arranged in an array on the surface of the valve plate, a plurality of valve plates for covering the valve holes are arranged in an array on the side of the valve plate facing the head of the forced air inlet cylinder, and the valve plate and the valve plate are rotationally connected through a spring hinge; the protection valve connected through the spring hinge can ensure that the forced air inlet cylinder is only opened during air inlet operation, so as to reduce the possibility of dust entering the complete combustion net during usual placement.

[0020] As a further improvement of the present application, a plurality of pressure relief holes are arranged in an array on the rear bending part; the pressure relief holes can provide pressure relief exhaust for air expansion of the initial combustion part, the small opening prevents the leakage of flame and smoke, and effectively prevents the flame from being discharged from the air inlet pipe, so as to improve safety.

[0021] As a further improvement of the present application, a clamping bottom plate is fixed on the inner wall of the bottom of the complete combustion cylinder through bolts, a clamping ring is arranged around the clamping bottom plate, and the bottom of the porous heating body is fixed to the clamping bottom plate through clamping of the clamping ring; the clamping structure enables the entire porous heating body to be disassembled, and also enables the porous heating body and the wall surface of the complete combustion cylinder to be not fixed synchronously, so as to reduce damage to the porous heating body caused by transmission of vibration when the complete combustion cylinder is impacted and vibrated.

[0022] The present application has the following beneficial effects:

[0023] The present application improves the structure of the existing liquefied gas spray gun, and the outer flame combustion structure is improved into a segmented combustion structure. First, the liquefied gas is combusted in the spray gun body structure under oxygen deficiency, and then over-oxygen combustion is carried out at the air outlet position of the spray gun. The long combustion stroke reduces the possibility of producing a visible flame at the air outlet. The segmented combustion can ensure complete combustion of the liquefied gas and also ensure that the primary combustion cylinder belonging to the spray gun body will not produce high temperature due to complete combustion, thereby ensuring the safety of the operator. In addition, the present application uses a porous heating body as a mixed combustion medium and a heating medium, so that the flame can burn in the porous heating body, thereby causing the porous heating body to generate heat radiation. Then, the heat radiation will heat the air coming from the forced air inlet cylinder, thereby achieving heating of the waterproof felt. The safety is further improved by replacing open flame heating with radiation heating and convection heat exchange. BRIEF DESCRIPTION OF DRAWINGS

[0024] The present application will be further described below in conjunction with the drawings and examples.

[0025] Figure 1 is a cross-sectional schematic view of the present application;

[0026] Figure 2 is a schematic view of the structure of the primary combustion cylinder;

[0027] Figure 3 is a schematic view of the transverse cross-section of the complete combustion cylinder.

[0028] In the drawings: 1, primary combustion cylinder; 2, partition plate; 3, hanger; 4, front bending part; 5, rear bending part; 6, pressure relief hole; 7, tail air inlet cylinder; 8, tail fan; 9, primary combustion net; 10, gas pipe; 11, guide pipe; 12, extension pipe; 13, inlaid groove; 14, heat insulation layer; 15, hoisting plate; 16, guide vane; 17, hoisting bolt; 18, bending part; 19, complete combustion cylinder; 20, porous heating body; 21, clamping bottom plate; 22, clamping ring; 23, forced air inlet cylinder; 24, forced air inlet fan; 25, valve plate; 26, valve piece; 27, connection opening; 28, sealing plate; 29, air inlet pipe; 30, fixing ring; 31, protective net; 32, turbulence cover shell; 33, partition piece; 34, bending part; 35, gas connection valve; 36, igniter. DETAILED DESCRIPTION

[0029] The present application will now be further described in conjunction with the drawings. These drawings are all simplified schematic views, and only schematically illustrate the basic structure of the present application, and thus only show the components related to the present application.

[0030] As Figure 1 , an external flame-free waterproof felt heating and adhering auxiliary device; mainly comprising an under-combustion part and a complete combustion part;

[0031] AsFigure 1 And Figure 2 The under-combustion part body is an initial-stage combustion cylinder, the inner wall of the initial-stage combustion cylinder is provided with two groups of hangers, each group of hangers is provided with a clamping gap, a partition plate is fixed between the two groups of hangers through the clamping gap, the front end and the rear end of the partition plate are provided with a front bending part and a rear bending part respectively, the front bending part and the rear bending part are bent towards the bottom wall surface of the initial-stage combustion cylinder and are in sealing contact with the wall surface of the initial-stage combustion cylinder, and a plurality of pressure relief holes are arrayed on the rear bending part; an opening is arranged in the middle part of the partition plate, an initial-stage combustion net is fixed in the middle part of the partition plate through the opening, the initial-stage combustion net is made of a metal sintering net process, the initial-stage combustion net has a porous gap, so that the liquefied gas can burn and adhere in the gap, the contact with air and combustion are ensured, an inlay groove is arranged at the bottom of the initial-stage combustion net, a gas connection valve is fixed at the end of the initial-stage combustion cylinder, a gas pipe is connected to the gas connection valve, the gas pipe extends to the inside of the initial-stage combustion cylinder, a porous structure guide pipe is connected to the gas pipe, the guide pipe is inlaid into the bottom of the inlay groove, and a igniter of an electronic ignition structure is also fixed at the connection position of the gas connection valve.

[0032] As Figure 1 A connecting opening is arranged at the bottom of the initial-stage combustion cylinder, an annular connecting ring is arranged at the edge of the connecting opening, a sealing plate is fixed through the connecting ring, a plurality of air inlet pipes are arrayed on the sealing plate, and the front ends of the air inlet pipes extend into the inlay groove; in addition, a protective net is arranged at the position corresponding to the connecting opening on the outer wall of the initial-stage combustion cylinder, an annular fixing ring is arranged at the edge of the protective net, and the fixing ring is fixed to the outer edge wall surface of the initial-stage combustion cylinder corresponding to the connecting opening through bolts.

[0033] As Figure 1 And Figure 2 A heat insulation layer made of heat insulation cotton and a group of plate-shaped hanger plates are fixed in sequence on the inner wall of the top end of the initial-stage combustion cylinder through hanger bolts, a plurality of guide vanes are vertically arrayed and fixed on the hanger plates, the bottoms of the guide vanes are in contact with the top end of the initial-stage combustion net, and guide gaps for smoke flow are arranged between the guide vanes.

[0034] As Figure 1 A tail part air inlet barrel is further fixed at the tail part of the initial-stage combustion cylinder, a tail part fan is arranged in the tail part air inlet barrel, and the tail part fan provides driving pressure for the smoke in the guide gap.

[0035] As Figure 1 And Figure 3, the complete combustion part comprises a complete combustion cylinder, the rear end of the complete combustion cylinder is connected to the front end of the primary combustion cylinder through an arc-shaped bending part, a heat insulation layer is fixed on the inner wall of the top of the complete combustion cylinder through hoisting bolts, a porous heating body is fixed on the inner wall of the bottom of the complete combustion cylinder through a clamping bottom plate, a clamping ring is arranged on the edge of the clamping bottom plate, and the clamping ring covers the bottom of the porous heating body to achieve fixed connection of the porous heating body; the front end of the flow guide pipe of the gas pipe is also connected with an extension pipe through a throttle valve, the extension pipe extends into the porous heating body; a forced air inlet cylinder is fixed at the top end of the bending part at the rear end of the complete combustion cylinder, a forced air inlet fan is arranged in the forced air inlet cylinder, the driving direction of the forced air inlet fan is towards the head of the complete combustion cylinder, and a protection valve is arranged at the tail of the forced air inlet cylinder, the protection valve comprises a valve plate fixed to the inner wall of the forced air inlet cylinder, a plurality of long strip-shaped valve holes are arranged on the surface of the valve plate, and a plurality of valve sheets for covering the valve holes are arranged on the side of the valve plate, which is towards the head of the forced air inlet cylinder, and the valve sheets are rotationally connected between the valve plate through springs.

[0036] As Figure 1 , a spoiler shell is arranged at the head of the complete combustion cylinder, a ventilation hole in communication with the complete combustion cylinder is arranged in the middle of the spoiler shell, a plurality of separation sheets are arranged in a straight line in the ventilation hole, the separation sheets are arranged in parallel to the axis of the complete combustion cylinder, an arc-shaped bending part is integrally connected to the end of the separation sheet, a waterproof felt extrusion surface with an arc surface structure is arranged on the outer side of the bending part, and an airflow spoiler surface with an arc surface structure is arranged on the inner side of the bending part.

[0037] Wherein, the flame and flue gas of the primary combustion net are mainly in the top end part of the primary combustion net, and the bottom end primary combustion net can be cooled by the air of the air inlet pipe, so that the sintering temperature of the sintering net in the prior art will not be too high, in the processing technology of the separation layer for processing the vacuum sintering net in the prior art ZL201310725202.8, the sintering net is sintered and manufactured at 1260 DEG C, and the temperature of the flame underburning in the technical solution is generally about 800 DEG C, so that the sintering net will not be damaged; in addition, the porous heating body used in the application is similar to the heating body used in the high-efficiency infrared heating body used in the gas appliance and gas equipment burner in the prior art ZL200810025853.5, which can generate infrared radiation by heating itself to realize radiation heat exchange of air.

[0038] When the scheme is used, first, the gas enters into the initial stage combustion net through the guide pipe, and the air enters through the array arranged air inlet pipe, the gas mixes with the air in the initial stage combustion net, then is ignited by the igniter, and the initial combustion occurs on the surface of the initial stage combustion net, the high temperature flue gas generated by the initial combustion is driven by the forced air inlet fan at the rear end, enters into the front end complete combustion cylinder through the guide gap between the guide vanes, then enters into the porous heating body under the driving of the forced air inlet fan of the forced air inlet cylinder, after the combustion of the gas in the extension pipe of the gas pipe, the high speed airflow generated by the air inlet fan occurs peroxide combustion, the combustion main body occurs in the porous heating body, the porous heating body generates infrared radiation under the heating, the infrared radiation heats the flue gas after combustion and the excess air generated by the air inlet fan, and finally is discharged from the end of the complete combustion cylinder, the high temperature flue gas after discharge exchanges heat with the waterproof felt close to the partition sheet under the disturbance of the partition sheet and the bending part of the partition sheet, realizes the heating of the waterproof felt, and the waterproof felt is extruded through the bending part during the heating, and then the waterproof felt is bonded.

[0039] Based on the above ideal embodiments according to the application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the application. The technical scope of the application is not limited to the content in the specification, and must be determined according to the scope of claims.

Claims

1. A flameless waterproof felt heating and adhesion aid, characterized in that, include: The underburning section includes a primary combustion tube, a combustion gas drive mechanism at the tail of the primary combustion tube, an underburning flue gas outlet at the head of the primary combustion tube, a combustion mixer fixedly connected to the inner wall of the middle section of the primary combustion tube, an air inlet pipe fixedly connected to the side wall of the primary combustion tube, and a gas pipe arranged at the tail of the primary combustion tube. The complete combustion section includes a complete combustion cylinder, the tail of which is sealed to the head of the initial combustion cylinder. The head of the complete combustion cylinder is provided with an air outlet. A porous heating element is fixedly connected to the inner wall of the complete combustion cylinder, and the front end of the gas pipe extends into the porous heating element. A forced air intake duct is connected to the side wall of the complete combustion cylinder, and the axis of the forced air intake duct faces the air outlet at the head of the complete combustion cylinder. The initial combustion chamber is fixed with a partition plate, which divides the initial combustion chamber into a flue gas flow zone and a mixing combustion zone. The two ends of the partition plate are respectively provided with a front bend and a rear bend. The front bend and the rear bend are sealed to the inner wall of the initial combustion chamber. The mixing combustion zone is located in the area enclosed by the front bend and the rear bend. The combustion mixer includes a porous primary combustion mesh, which is suspended and fixed inside the primary combustion cylinder by a partition plate. The primary combustion mesh is embedded in the mixing combustion zone. The primary combustion mesh is made of sintered metal and has an inlay groove at the bottom of the primary combustion mesh relative to the radial axis of the primary combustion cylinder. The intake pipe passes through the side wall of the initial combustion chamber and extends into the mounting groove; Among them, a porous guide tube is connected to the middle of the gas pipe, and the guide tube is embedded in the bottom surface of the inlay groove; The combustion gas drive mechanism includes a tail fan located at the tail end of the initial combustion tube, with the driving direction of the tail fan facing the head of the initial combustion tube. The forced air intake duct is equipped with a forced air intake fan, and the forced air intake fan is driven in the direction of the head of the complete combustion duct.

2. The waterproof felt heating and adhesion aid without an outer flame as described in claim 1, characterized in that: A connection opening is provided at the bottom of the radial axis of the initial combustion cylinder, and an annular connecting ring is provided at the edge of the connection opening. The air intake pipe array is fixed to a sealing plate, and the outer edge of the sealing plate is fixed to the connecting ring by bolts.

3. The waterproof felt heating and adhesion aid without an outer flame as described in claim 2, characterized in that: A protective net is installed on the outer wall of the primary combustion tube at the location corresponding to the connection opening. The edge of the protective net is provided with an annular fixing ring, which is fixed to the outer wall surface of the primary combustion tube corresponding to the connection opening by bolts.

4. The waterproof felt heating and adhesion aid without an outer flame as described in claim 1, characterized in that: in A heat insulation layer is provided on the top wall surface of the radial axis of both the initial combustion chamber and the complete combustion chamber.

5. The waterproof felt heating and adhesion aid without an outer flame as described in claim 1, characterized in that: in A lifting plate is fixed to the top wall of the radial axis of the initial combustion tube by bolts. Several guide vanes parallel to the axis of the intake pipe are integrally arranged in an array at the bottom of the lifting plate, and guide gaps are arranged between the guide vanes.

6. The waterproof felt heating and adhesion aid without an outer flame as described in claim 1, characterized in that: A turbulence shroud is arranged at the head of the combustion chamber. A ventilation hole communicating with the combustion chamber is provided in the middle of the turbulence shroud. Several partition plates are arranged in a linear array inside the ventilation hole. The partition plates are arranged parallel to the axis of the combustion chamber. An arc-shaped bend is integrally connected to the end of the partition plate. An arc-shaped waterproof felt extrusion surface is provided on the outer side of the bend, and an arc-shaped airflow turbulence surface is provided on the inner side of the bend.

7. The waterproof felt heating and adhesion aid without an outer flame as described in claim 1, characterized in that: in A protective valve is arranged at the tail end of the forced air intake duct. The protective valve includes a valve plate fixed to the inner wall of the forced air intake duct. Several elongated valve holes are arranged in an array on the surface of the valve plate. Several valve plates for covering the valve holes are arranged in an array on the side of the valve plate facing the head of the forced air intake duct. The valve plates are rotatably connected to the valve plate through spring hinges.

8. The waterproof felt heating and adhesion aid without an outer flame as described in claim 1, characterized in that: The rear bend has several pressure relief holes arranged in an array.

9. A flameless waterproof felt heating and adhesion aid as described in claim 1, characterized in that: in A clamping base plate is fixed to the bottom inner wall of the complete combustion cylinder by bolts, and a clamping ring is arranged around the clamping base plate. The bottom of the porous heating element is clamped and fixed to the clamping base plate by the clamping ring.

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