CN206912440U - A kind of flame preheating device - Google Patents
A kind of flame preheating device Download PDFInfo
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- CN206912440U CN206912440U CN201720878388.4U CN201720878388U CN206912440U CN 206912440 U CN206912440 U CN 206912440U CN 201720878388 U CN201720878388 U CN 201720878388U CN 206912440 U CN206912440 U CN 206912440U
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Abstract
The utility model discloses a kind of flame preheating device, belongs to pipeline preheating field.The device includes：Gas-distribution pipe, gas-distributing pipe, multiple roll wheel assemblies, multiple nozzle assemblies, sebific duct component and locking member.Gas-distribution pipe is in opening and closing type torus structure；The curved structure of gas-distributing pipe, and the both ends of gas-distributing pipe are connected and turned on the body of gas-distribution pipe respectively；Multiple roll wheel assemblies are circumferentially disposed on the inwall of gas-distribution pipe；Multiple nozzle assemblies are circumferentially disposed on the inwall of gas-distribution pipe, and are connected with the inner chamber of gas-distribution pipe；One end of sebific duct component is connected and turned on gas-distributing pipe, and the other end is used to connect source of the gas；It is closed type torus that locking member, which is used for gas-distribution pipe locking,.Preheating device preheating speed is fast, preheating is uniform, easy to carry, simple to operate, suitable for field extreme environment.
Description
Technical field
It the utility model is related to pipeline preheating field, more particularly to a kind of flame preheating device.
Background technology
When long distance pipeline welds, in order to ensure welding quality, generally require the docking mouth of pipe to long distance pipeline and carry out in advance
Heat.So, there is provided a kind of pipeline pre-heating device is highly important.
Prior art provides a kind of pipeline pre-heating device of heating in medium frequency type, and it includes retractable shell, intermediate frequency
Cable, terminal plate, wherein, immediate frequency cable is arranged on the inwall of shell, and terminal plate is arranged on the opening both ends of shell, with intermediate frequency
Cable connection, also, when enclosure closed, the terminal plate conductive contact at the both ends that are open.Terminal plate passes through extraction wire and power supply
Connection.
Designer has found that prior art at least has problems with：
Prior art uses heating in medium frequency mode, is not suitable for field extreme environment.
Utility model content
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of flame preheating device.Particular technique
Scheme is as follows：
A kind of flame preheating device, described device include：Gas-distribution pipe, in opening and closing type torus structure；
Arc gas-distributing pipe, both ends are connected and turned on the body of the gas-distribution pipe respectively；
Multiple roll wheel assemblies, it is circumferentially disposed on the inwall of the gas-distribution pipe；
Multiple nozzle assemblies, be circumferentially disposed on the inwall of the gas-distribution pipe, and with the inner chamber of the gas-distribution pipe
Connection；
Sebific duct component, one end are connected and turned on the gas-distributing pipe, and the other end is used to connect source of the gas；
Locking member, for being closed type torus by gas-distribution pipe locking.
Specifically, preferably, the gas-distribution pipe includes：Two groups of sub- gas-distribution pipes of semicircular arc, sub- gas-distribution pipe described in two groups
Relative first end is hinged by articulated elements, and the second relative end is connected by the locking member；
Sub- gas-distribution pipe described in every group is corresponding with a gas-distributing pipe to be connected.
Specifically, preferably, sub- gas-distribution pipe includes described in every group：Two parallel relative semicircular arc pipes；
Two transverse tubes, the both ends side wall vertical connection relative with two sub- pipes respectively；
The both ends of the gas-distributing pipe are bent downwardly, and are connected respectively with two transverse tubes.
Specifically, preferably, the roll wheel assembly includes：Rolling wheel support, roller, connector；
One end of the rolling wheel support is connected with the inwall of the gas-distribution pipe, and the other end is connected by connector and the roller
Connect, the roller is rotated along the mouth of pipe to be preheated.
Specifically, preferably, the nozzle assembly includes：Igniter cap, igniter cap base, nozzle；
One end of the igniter cap base is connected with the inwall of the sub- pipe, also, the inner chamber of the igniter cap base with it is described
The inner chamber connection of sub- pipe；
The other end of the igniter cap base is connected with the igniter cap and the nozzle simultaneously, and the inner chamber of the igniter cap base
Connected with the nozzle, the nozzle is located in the inner chamber of the igniter cap.
Specifically, preferably, for sub- gas-distribution pipe described in every group, punching is intersected on the inwall of two sub- pipes, with
It is respectively used to be connected with the igniter cap base.
Specifically, preferably, the sebific duct component includes：Connector and sebific duct；
One end of the connector connects with the gas-distributing pipe, and the other end connects with the sebific duct；
The free end of the sebific duct is used to connect the source of the gas.
Specifically, preferably, the locking member includes：First hinge ear supporter, hook, U-bracket, handle；
Two hinge ear supporters are oppositely arranged on the lower surface at the second end of sub- gas-distribution pipe described in two groups；
The the first hinge ear supporter of hook-type Duan Yuyi of the hook is hinged；
The flat segments of the hook are threadedly coupled with the U-shaped bottom of the U-bracket；
The openend of the U-bracket and one end of the handle are hinged；
The shank body of the handle is also hinged with cutting with scissors ear supporter another described.
Specifically, preferably, the articulated elements includes：Second hinge ear supporter, bearing pin；
Two the second hinge ear supporters are oppositely arranged on the upper surface of the first end of sub- gas-distribution pipe described in two groups；
The bearing pin and two the second hinge ear supporter pin joints.
The beneficial effect brought of technical scheme that the utility model embodiment provides is：
The preheating device that the utility model embodiment provides, forms the skeleton of the device by gas-distribution pipe, gas-distributing pipe, and
Roll wheel assembly, nozzle assembly, sebific duct component and locking member are set thereon, and the preheating device formed uses flame line up pre-
Heat, there is the advantages of preheating speed is fast, preheating is uniform, easy to carry, simple to operate, suitable for field extreme environment.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation for the flame preheating device that the utility model embodiment provides；
Fig. 2 is the profile for the flame preheating device that the utility model embodiment provides；
Fig. 3 is the structural representation for the roll wheel assembly that the utility model embodiment provides；
Fig. 4 is the structural representation for the nozzle assembly that the utility model embodiment provides；
Fig. 5-1 is the structural representation for the hook that the utility model embodiment provides；
Fig. 5-2 is the structural representation for the U-bracket that the utility model embodiment provides；
Fig. 5-3 is the structural representation for the handle that the utility model embodiment provides；
Fig. 6 is the structural representation for the articulated elements that the utility model embodiment provides.
Reference represents respectively：
1- gas-distribution pipes,
The sub- gas-distribution pipes of 101-, 1011- pipes, 1012- transverse tubes,
2- gas-distributing pipes,
3- roll wheel assemblies,
301- rolling wheel supports, 302- rollers, 303- connectors,
4- nozzle assemblies,
401- igniter caps, 402- igniter cap bases, 403- nozzles,
5- sebific duct components,
501- connectors, 502 sebific ducts,
6- locking members,
601- first cuts with scissors ear supporter, and 602- is linked up with, 603-U shape supports, 604- handles,
7- articulated elements,
701- second cuts with scissors ear supporter, 702- bearing pins.
Embodiment
Unless otherwise defined, all technical terms used in the utility model embodiment are respectively provided with and those skilled in the art
The identical implication being generally understood that.To make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with attached
Figure is described in further detail to the utility model embodiment.
The utility model embodiment provides a kind of flame preheating device, and as shown in Figure 1, the device includes：Gas-distribution pipe
1st, gas-distributing pipe 2, multiple roll wheel assemblies 3, multiple nozzle assemblies 4, sebific duct component 5 and locking member 6.
Wherein, gas-distribution pipe 1 is in opening and closing type torus structure；
2 curved structure of gas-distributing pipe, and the both ends of gas-distributing pipe 2 are connected and turned on the body of gas-distribution pipe 1 respectively；
Multiple roll wheel assemblies 3 are circumferentially disposed on the inwall of gas-distribution pipe 1；
Multiple nozzle assemblies 4 are circumferentially disposed on the inwall of gas-distribution pipe 1, and are connected with the inner chamber of gas-distribution pipe 1；
One end of sebific duct component 5 is connected and turned on gas-distributing pipe 2, and the other end is used to connect source of the gas；
Locking member 6 is used to lock gas-distribution pipe 1 for closed type torus.
The operation principle with regard to the flame preheating device, which is given, below sketches：
When the mouth of pipe to Target pipe preheats, gas-distribution pipe 1 is opened, it is enclosed at the mouth of pipe to be preheated, it is ensured that
Welded seam area on the mouth of pipe is relative with the inwall of gas-distribution pipe 1.Then, gas-distribution pipe 1 is locked as closed type annulus using locking member 6
Body, and ensure that the roll wheel assembly 3 in it can rotate along the mouth of pipe.
Sebific duct component 5 is connected with source of the gas, source of the gas is opened and combustion medium is passed through into sebific duct component 5, combustion medium passes through
Gas-distributing pipe 2 is evenly distributed in gas-distribution pipe 1, and is sprayed by nozzle assembly 4.Combustion medium is lighted at nozzle assembly 4 and produces fire
Flame, preheated using the flame line up welded seam area.In warm, the flame preheating device is rotated, to ensure
There is welded seam area to obtain full and uniform heating.
After mouth of pipe temperature reaches welding requirements, source of the gas is closed, locking member 6 is opened, opens gas-distribution pipe 1, from the mouth of pipe
Remove the flame preheating device.
It can be seen that the utility model embodiment provide preheating device, by gas-distribution pipe 1, gas-distributing pipe 2 formed the device bone
Frame, and roll wheel assembly 3, nozzle assembly 4, sebific duct component 5 and locking member 6 are being set thereon, the preheating device formed uses fire
Flame line up preheats, and has the advantages of preheating speed is fast, preheating is uniform, easy to carry, simple to operate, suitable for the severe ring in field
Border.
Gas-distribution pipe 1 is arranged to opening and closing type, and in order to realize its retractable function, as shown in Figure 1, the gas-distribution pipe 1 includes：
The sub- gas-distribution pipe 101 of two groups of semicircular arcs, the relative first end of two groups of sub- gas-distribution pipes 101 is be hinged by articulated elements 7, and relative second
End is connected by locking member 6；The connection corresponding with a gas-distributing pipe 2 of every group of sub- gas-distribution pipe 101.
It is understood that two groups of sub- gas-distribution pipes 101 are semicircular arc structure, both two ends are docked respectively can
To form torus, it is sleeved on the mouth of pipe.For the ease of describing its structure, by both relative ends be referred to as first end and
Second end, first end and the second end are closing, to avoid gas leakage.Wherein, both first ends are be hinged by articulated elements 7,
Opening and closing in order to both.And both the second ends are connected by locking member 6, it can be ensured that two groups of sub- gas-distribution pipes 101 close up
Into relative locking during torus.
Further, as shown in Figure 2, every group of sub- gas-distribution pipe 101 includes：Two parallel relative semicircular arc pipes
1011；Two transverse tubes 1012, the both ends side wall vertical connection relative with two sub- pipes 1011 respectively；The both ends of gas-distributing pipe 2 are downward
Bending, and connected respectively with two transverse tubes 1012.
By the way that every group of sub- gas-distribution pipe 101 is arranged to be made up of two parallel sub- pipes 1011 of relative semicircular arc, so,
Settable nozzle assembly 4, is arranged such on inwall per height pipe 1011, on the one hand, double annular flame heating can be carried out,
The heated perimeter of the preheating device line up is widened, temperature quickly reduces after can so avoiding mouth of pipe welding, ensures weld strength；
On the other hand, in use, the centre for the two row's nozzle assemblies 4 that mouth of pipe welded seam area can be arranged on two sub- pipes 1011
Position, it can so avoid flame from aligning and weld seam is heated, and then avoid impurity caused by combustion medium from entering in weld seam, and then really
Protect welding quality.
In addition, by the way that gas-distributing pipe 2 is set as above, it is also used as the handle when preheating device is rotated, and makes it
It is more time saving and energy saving to rotate.
It will be appreciated by persons skilled in the art that gas-distributing pipe 2 is minor arc, i.e., its radian is less than semi arch.But in order to
Ensure that combustion medium is evenly distributed, can make the both ends of gas-distributing pipe 2 respectively with 2/4 and 3/4 separation of the sub- arc length of pipe 1011
It is corresponding.
The utility model embodiment makes the preheating device be rotated along the mouth of pipe using roll wheel assembly 3, as a kind of example, such as
Shown in accompanying drawing 3, the roll wheel assembly 3 includes：Rolling wheel support 301, roller 302, connector 303；
Wherein, one end of rolling wheel support 301 is connected with the inwall of gas-distribution pipe 1, and the other end passes through connector 303 and roller
302 connections, make roller 302 be rotated along the mouth of pipe to be preheated.
In use, the outer wall of roller 302 and the mouth of pipe offsets, and rotates along the mouth of pipe to be preheated, to ensure line up
Uniformly heated.
It is understood that rolling wheel support 301 is provided with for accommodating opening for roller 302 with one end that roller 302 is connected
Mouth groove, the connector 303 can be bearing pin, bearing pin is passed through two side plates and roller 302 of the open slot, you can to realize roller
The support of the pair roller 302 of support 301, while ensure the rotatable of roller 302.
The utility model embodiment is sprayed combustion medium and its burning of support is formed flame using nozzle assembly 4, is made
For a kind of example, as shown in Figure 4, the nozzle assembly 4 includes：Igniter cap 401, igniter cap base 402, nozzle 403；
One end of igniter cap base 402 is connected with the inwall of sub- pipe 1011, also, the inner chamber of igniter cap base 402 is managed with son
1011 inner chamber connection；
The other end of igniter cap base 402 is connected with igniter cap 401 and nozzle 403 simultaneously, and the inner chamber of igniter cap base 402 and spray
Mouth 403 connects, and nozzle 403 is located in the inner chamber of igniter cap 401.
By setting igniter cap 401, flame is formed in order to carry out igniting to combustion medium；By setting nozzle 403 with true
Protect combustion medium to spray at a high speed, it is ensured that the sustainability and intensity of burning.By setting igniter cap base 402, so that sub- pipe 1011
Inwall and the nozzle assembly 4 form annexation.
Specifically, igniter cap base 402 is arranged to hollow cylinder, and its one end sets external screw thread and internal thread respectively, accordingly
, internal thread is provided with the inner wall of end of igniter cap 401, and external screw thread is provided with the end outer wall of nozzle 403, make igniter cap bottom
The outer wall of 402 one end of seat is threadedly coupled with igniter cap 401, and the inwall at the end is threadedly coupled with nozzle 403, is ensureing stable connection
On the premise of, in order to dismount.
As shown in Figure 4, the length of igniter cap 401 will be longer than nozzle 403, to ensure the stability of flame.For example, may be used
So that the length of nozzle 403 is the 1/10-1/5 of igniter cap 401.
In order to ensure line up is carried out effectively and uniform preheating, for every group of sub- gas-distribution pipe 101, two sub- pipes 1011
Intersect punching on inwall, to be respectively used to be connected with igniter cap base 402.
It is arranged such, is provided with a circle nozzle assembly 4 per the inwall of height pipe 1011, on the inwall of another height pipe 1011
A circle nozzle assembly 4 is also equipped with, is staggered in this two circles nozzle assembly 4 so that their inwalls in the sub- gas-distribution pipe 101
On distribution it is wider.
In addition, roll wheel assembly 3 is staggered with nozzle assembly 4 on the inwall of gas-distribution pipe 1.
The utility model embodiment forms connection using sebific duct component 5 for the preheating device and external air source, as one
Kind example, as shown in Figure 1, the sebific duct component 5 includes：Connector 501 and sebific duct 502；
One end of connector 501 connects with gas-distributing pipe 2, and the other end connects with sebific duct 502；
The free end of sebific duct 502 is used to connect source of the gas.
Wherein, the connector 501 can be arranged to hollow cylindrical, and its one end can be threadedly coupled with the wall of gas-distributing pipe 2,
The other end can be arranged to undergauge end, also, multi-ring annular boss is provided with the outer wall at undergauge end, by by the undergauge end with
When sebific duct 502 connects, it can be ensured that both connect fastening.
The utility model embodiment is locked gas-distribution pipe 1 by locking member 6, will two groups of sub- gas-distribution pipes of semicircular arc
101 lockings, as a kind of example, as shown in Figure 1, the locking member 6 includes：First hinge ear supporter 601, hook 602, U-shaped branch
Frame 603, handle 604；
Two hinge ear supporters 601 are oppositely arranged on the lower surface at the second end of two groups of sub- gas-distribution pipes 101；
Duan Yuyi first hinge ear supporter 601 of hook-type of hook 602 is be hinged；
The flat segments of hook 602 are threadedly coupled with the U-shaped bottom of U-bracket 603；
The openend of U-bracket 603 and one end of handle 604 are hinged；
The shank body of handle 604 is also be hinged with another hinge ear supporter 601.
By the way that locking member 6 is set as above, specifically, by the Duan Yuyi first hinge ear supporter 601 of hook-type for making hook 602
It is be hinged, so hook 602 can be enable to rotate, when linking up with 602 rotation, due to the U-shaped bottom of its flat segments U-bracket 603
Threaded connection, the length that the flat segments are stretched in the U-shaped bottom of U-bracket 603 is so can adjust, and then realize locking member 6
Tense-lax regulation, ensure locking property it is good on the premise of, moreover it is possible to make the preheating device be applied to different tube diameters the mouth of pipe.
In addition, Duan Yuyi first hinge ear supporter 601 of the hook-type of above-mentioned hook 602 is be hinged, and the shank body of handle 604
Be hinged with another hinge ear supporter 601, the hinged relationship can be realized by using bearing pin.
Wherein, the structure for linking up with 602 may refer to accompanying drawing 5-1, and the structure of U-bracket 603 may refer to accompanying drawing 5-2, hand
The structure of handle 604 may refer to accompanying drawing 5-3, and by the way that handle 604 is arranged to flat segments and updip section, the purpose is to convenient
Operation and self-locking.When operation updip section turns to along bearing pin to be turned to form angle with U-bracket 603 in flat segments, locking member 6 is sent out
Lock is born from, the sub- locking of gas-distribution pipe 101 of two groups of semicircular arcs can not be opened, turned when operation updip section is turned in flat segments along bearing pin
During with the shape of U-bracket 603 in line, locking member 6 unties self-locking, and the sub- gas-distribution pipe 101 of two groups of semicircular arcs can be opened.
In the utility model embodiment, make the action that two groups of sub- gas-distribution pipes 101 are opened and closed using articulated elements 7, make
For a kind of example, in order to realize above-mentioned function, while both connective stabilities are ensured, as shown in Figure 6, the articulated elements 7 includes：
Second hinge ear supporter 701, bearing pin 702；
Two second hinge ear supporters 701 are oppositely arranged on the upper surface of the first end of two groups of sub- gas-distribution pipes 101；
Bearing pin 702 and the two second hinge pin joints of ear supporter 701.
In summary, the preheating device that the utility model embodiment provides has advantages below：
(1) double annular flame can be used to heat, in heating, nozzle 403 is arranged in the both sides of mouth of pipe weld seam, and right
Tube wall heats, and avoids flame directly to weld seam, the defects of reducing commissure oxide layer layer generation, be advantageous to improve welding matter
Amount.
(2) preheating device is rotated by using roll wheel assembly 3 along the mouth of pipe so that the mouth of pipe is heated evenly, and is further improved
Welding quality.
(3) preheating device to the mouth of pipe of weld seam both sides can heat simultaneously, and preheating speed is fast, and heat range is big,
Heat loss is small, is advantageous to improve the efficiency of heating surface and reduces burning cost.
(4) preheating device can be process using seamless steel pipe, and its is simple in construction, in light weight, easy to operate, be saved
Worker's usage time and transition cost of transportation.
Preferred embodiment of the present utility model is the foregoing is only, not to limit the scope of protection of the utility model,
All any modification, equivalent substitution and improvements within the spirit and principles of the utility model, made etc., should be included in this reality
Within new protection domain.
Claims (9)
1. a kind of flame preheating device, it is characterised in that described device includes：Gas-distribution pipe (1), in opening and closing type torus knot
Structure；
Arc gas-distributing pipe (2), both ends are connected and turned on the body of the gas-distribution pipe (1) respectively；
Multiple roll wheel assemblies (3), are circumferentially disposed on the inwall of the gas-distribution pipe (1)；
Multiple nozzle assemblies (4), are circumferentially disposed on the inwall of the gas-distribution pipe (1), and with the gas-distribution pipe (1)
Inner chamber connects；
Sebific duct component (5), one end are connected and turned on the gas-distributing pipe (2), and the other end is used to connect source of the gas；
Locking member (6), for being closed type torus by the gas-distribution pipe (1) locking.
2. device according to claim 1, it is characterised in that the gas-distribution pipe (1) includes：Two groups of sub- distributions of semicircular arc
Manage (101), the relative first end of sub- gas-distribution pipe (101) described in two groups is be hinged by articulated elements (7), and the second relative end passes through institute
State locking member (6) connection；
Sub- gas-distribution pipe (101) described in every group is corresponding with a gas-distributing pipe (2) to be connected.
3. device according to claim 2, it is characterised in that sub- gas-distribution pipe (101) includes described in every group：Two parallel phases
To semicircular arc pipe (1011)；
Two transverse tubes (1012), the both ends side wall vertical connection relative with two sub- pipes (1011) respectively；
The both ends of the gas-distributing pipe (2) are bent downwardly, and are connected respectively with two transverse tubes (1012).
4. device according to claim 1, it is characterised in that the roll wheel assembly (3) includes：Rolling wheel support (301), rolling
Take turns (302), connector (303)；
One end of the rolling wheel support (301) is connected with the inwall of the gas-distribution pipe (1), and the other end passes through the connector
(303) it is connected with the roller (302), the roller (302) is rotated along the mouth of pipe to be preheated.
5. device according to claim 3, it is characterised in that the nozzle assembly (4) includes：Igniter cap (401), igniter cap bottom
Seat (402), nozzle (403)；
One end of the igniter cap base (402) is connected with the inwall of the sub- pipe (1011), also, the igniter cap base (402)
Inner chamber connected with the inner chamber of the sub- pipe (1011)；
The other end of the igniter cap base (402) is connected with the igniter cap (401) and the nozzle (403) simultaneously, and the fire
The inner chamber of cap base (402) connects with the nozzle (403), and the nozzle (403) is located in the inner chamber of the igniter cap (401).
6. device according to claim 5, it is characterised in that for sub- gas-distribution pipe (101) described in every group, two sons
Manage and intersect punching on the inwall of (1011), to be respectively used to be connected with the igniter cap base (402).
7. device according to claim 1, it is characterised in that the sebific duct component (5) includes：Connector (501) and glue
Manage (502)；
One end of the connector (501) connects with the gas-distributing pipe (2), and the other end connects with the sebific duct (502)；
The free end of the sebific duct (502) is used to connect the source of the gas.
8. device according to claim 2, it is characterised in that the locking member (6) includes：First hinge ear supporter (601),
Link up with (602), U-bracket (603), handle (604)；
Two hinge ear supporters (601) are oppositely arranged on the lower surface at the second end of sub- gas-distribution pipe (101) described in two groups；
The first hinge ear supporter (601) of hook-type Duan Yuyi of the hook (602) is be hinged；
The flat segments of the hook (602) are threadedly coupled with the U-shaped bottom of the U-bracket (603)；
The openend and one end of the handle (604) of the U-bracket (603) are hinged；
The shank body of the handle (604) is also hinged with cutting with scissors ear supporter (601) another described.
9. device according to claim 8, it is characterised in that the articulated elements (7) includes：Second hinge ear supporter (701),
Bearing pin (702)；
Two second hinge ear supporters (701) are oppositely arranged on the upper surface of the first end of sub- gas-distribution pipe (101) described in two groups；
The bearing pin (702) and two described second hinge ear supporter (701) pin joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720878388.4U CN206912440U (en) | 2017-07-19 | 2017-07-19 | A kind of flame preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720878388.4U CN206912440U (en) | 2017-07-19 | 2017-07-19 | A kind of flame preheating device |
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| Publication Number | Publication Date |
|---|---|
| CN206912440U true CN206912440U (en) | 2018-01-23 |
Family
ID=61347810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201720878388.4U Active CN206912440U (en) | 2017-07-19 | 2017-07-19 | A kind of flame preheating device |
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| CN (1) | CN206912440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623084A (en) * | 2019-01-31 | 2019-04-16 | 重庆川亚柔杰机械有限公司 | Damper welder |
-
2017
- 2017-07-19 CN CN201720878388.4U patent/CN206912440U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623084A (en) * | 2019-01-31 | 2019-04-16 | 重庆川亚柔杰机械有限公司 | Damper welder |
| CN109623084B (en) * | 2019-01-31 | 2020-12-11 | 重庆川亚柔杰机械有限公司 | Welding device for shock absorber |
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