CN208968340U - Collecting box and natural gas of industry exhaust gas heat exchanger - Google Patents
Collecting box and natural gas of industry exhaust gas heat exchanger Download PDFInfo
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- CN208968340U CN208968340U CN201821719550.9U CN201821719550U CN208968340U CN 208968340 U CN208968340 U CN 208968340U CN 201821719550 U CN201821719550 U CN 201821719550U CN 208968340 U CN208968340 U CN 208968340U
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- wall
- collecting box
- chamber
- cover board
- bottom wall
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Abstract
The utility model discloses collecting box and natural gas of industry exhaust gas heat exchangers, are related to industrial energy saving field of heat exchange equipment.Collecting box provided by the utility model includes cover board and box body, box body includes bottom wall and the side wall for being set to bottom wall, bottom wall and side wall are surrounded with open chamber, cover board connect with box body and seals opening, cover board is provided with multiple water inlets with chamber, bottom wall is provided with the water outlet with chamber, is provided with spoiler on the inner wall of chamber.The utility model also provides a kind of natural gas of industry exhaust gas heat exchanger including collecting box.Collecting box and natural gas of industry exhaust gas heat exchanger provided by the utility model can either reduce the noise of chamber inner wall, can also play mixed uniformly purpose.It can also guarantee stable water pressure in chamber simultaneously, avoid pressure of equipment caused by hydraulic pressure suddenly change uneven and the junction of drawing crack cover board and box body, and then the explosion for avoiding leak and dry combustion from being likely to form.
Description
Technical field
The utility model relates to industrial energy saving field of heat exchange equipment, in particular to collecting box and natural gas of industry tail
Gas-heat exchanger.
Background technique
The thermal energy such as common natural gas boiler, station boiler, combustion engine, Industrial Boiler and power-equipment exhaust gas temperature are 150
To between 1000 degree, smoke discharging residual heat loss accounts for the 30%-70% that equipment always consumes energy, and causes energy waste and environmental pollution.It utilizes
Exhaust gas temperature can be dropped to dew-point temperature hereinafter, not only having recycled the sensible heat of flue gas by condensing gas exchanger, more high
Effect is that combustion of natural gas is utilized to generate the latent heat (about the 11% of chemical heat) released when a large amount of water recoveries, makes equipment
The low heat value efficiency that combustion gas utilizes is more than 100%.
End and not set collecting box of the hot equipment of traditional industry in water, are only welded each pipeline with snake type connecting tube, this
When classical production process disadvantage is that water flow is uneven, which root canal road the place of mixing water, water route do not first pass through, which root canal
Road is just first discharged, it is such design be unfavorable for water uniformly through such as certain root water-pipe blockage, water amount is small, then causes equipment
Dry combustion, the result of dry combustion will lead to equipment explosion.
Utility model content
The purpose of this utility model is to provide a kind of collecting boxs, can either reduce the noise of chamber inner wall, also can
Play mixed uniformly purpose.It can also guarantee stable water pressure in chamber simultaneously, equipment caused by hydraulic pressure suddenly change is avoided to hold
Pressure is uneven and the junction of drawing crack cover board and box body, and then the explosion for avoiding leak and dry combustion from being likely to form.
The utility model provides a kind of technical solution about collecting box:
A kind of collecting box, including cover board and box body, the box body include bottom wall and the side wall for being set to the bottom wall, described
Bottom wall and the side wall surround the chamber with opening, and the cover board connect with the box body and seal the opening, the lid
Plate is provided with multiple water inlets with the chamber, and the bottom wall is provided with the water outlet with the chamber, described
Spoiler is provided on the inner wall of chamber.
Optionally, the spoiler includes the first trouble flow strip and the second trouble flow strip, first trouble flow strip and described second
Trouble flow strip is arranged in a crossed manner.
Optionally, the quantity of first trouble flow strip and second trouble flow strip is multiple, and first trouble flow strip
Extending direction and the extending direction of second trouble flow strip be mutually perpendicular to.
Optionally, the side wall has opposite the first inner wall and the second inner wall, and the spoiler is respectively arranged at
First inner wall, second inner wall and the bottom wall.
Optionally, the side wall also have first outside wall surface opposite with first inner wall and with second inner wall
The second opposite outside wall surface of face, first outside wall surface and second outside wall surface are arranged on the position of the relatively described spoiler
There is groove corresponding with the spoiler shape.
Optionally, the cover board is provided with clamping portion, and the side wall is provided with interconnecting piece, the interconnecting piece and the clamping
Portion is detachably connected.
Optionally, the clamping portion has clamping groove, and the interconnecting piece protrudes into the clamping groove and connects with the clamping groove
It connects.
Optionally, the clamping portion includes extension and limiting section, and the limiting section is set to institute by the extension
Cover board is stated, and the extension and the limiting section and the cover board surround the clamping groove, the interconnecting piece and the extension
Portion abuts.
Optionally, the clamping portion and the interconnecting piece weld, to seal the opening.
The another object of the utility model is to provide a kind of natural gas of industry exhaust gas heat exchanger, can either reduce chamber
The noise of chamber interior walls can also play mixed uniformly purpose.It can also guarantee stable water pressure in chamber simultaneously, avoid hydraulic pressure prominent
Pressure of equipment caused by so changing is uneven and the junction of drawing crack cover board and box body, and then leak and dry combustion is avoided to be likely to form
Explosion.
The utility model provides a kind of technical solution about natural gas of industry exhaust gas heat exchanger:
A kind of natural gas of industry exhaust gas heat exchanger, including collecting box.Collecting box includes cover board and box body, the box body packet
Include bottom wall and the side wall for being set to the bottom wall, the bottom wall and the side wall are surrounded with open chamber, the cover board with
The box body connects and seals the opening, and the cover board is provided with multiple water inlets with the chamber, the bottom wall
It is provided with the water outlet with the chamber, is provided with spoiler on the inner wall of the chamber.
Compared with prior art, the beneficial effect of collecting box and natural gas of industry exhaust gas heat exchanger provided by the utility model
It is:
The chamber that the bottom wall and side wall of box body are used to surround, the chamber have opening in order to manufacture.Cover board is matched with box body
It closes, to close the opening.Water inlet on cover board is for intaking, and chamber is for accommodating water, and the water outlet on bottom wall is for being discharged.
When in use, water inlet is connect with water inlet pipe, and to be directed water into chamber by water inlet pipe, water outlet is connect with outlet pipe, with
The indoor water of chamber is discharged by outlet pipe.The spoiler being arranged on chamber inner wall can either reduce the noise of chamber inner wall,
Also mixed uniformly purpose can be played.It can also guarantee stable water pressure in chamber simultaneously, avoid caused by hydraulic pressure suddenly change
Pressure of equipment is uneven and the junction of drawing crack cover board and box body, and then the explosion for avoiding leak and dry combustion from being likely to form.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described.It should be appreciated that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as.For those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is structural schematic diagram of the collecting box that provides of the embodiments of the present invention under the first visual angle；
Fig. 2 is structural schematic diagram of the collecting box that provides of the embodiments of the present invention under the second visual angle；
Fig. 3 is structural schematic diagram of the collecting box that provides of the embodiments of the present invention under third visual angle；
Fig. 4 is the schematic cross-sectional view in Fig. 3 at IV-IV；
Fig. 5 is the schematic cross-sectional view in Fig. 3 at V-V；
Fig. 6 is the enlarged structure schematic diagram in Fig. 5 at VI；
Fig. 7 is structural schematic diagram of the collecting box that provides of the embodiments of the present invention under the 4th visual angle.
Icon: 10- collecting box；100- box body；103- water outlet；110- bottom wall；120- side wall；126- interconnecting piece；130-
Spoiler；The first trouble flow strip of 131-；The second trouble flow strip of 132-；200- cover board；201- water inlet；The clamping portion 210-；211- extends
Portion；212- limiting section.
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.Obviously, it is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be understood that term " on ", "lower", "inner", "outside", "left", "right" etc.
The orientation or positional relationship of instruction be based on the orientation or positional relationship shown in the drawings or the utility model product use when
The orientation or positional relationship that the orientation or positional relationship or those skilled in the art usually put usually understand, be only for
Convenient for description the utility model and simplify description, rather than the equipment of indication or suggestion meaning or element must have specifically
Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply relatively important
Property.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, " setting ",
Terms such as " connections " shall be understood in a broad sense, for example, " connection " may be a fixed connection, may be a detachable connection, or one
Ground connection；It can be mechanical connection, be also possible to be electrically connected；Can be and be directly connected to, can also by between intermediary in succession
It connects, can be the connection inside two elements.For the ordinary skill in the art, can understand as the case may be
The concrete meaning of above-mentioned term in the present invention.
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail.
First embodiment
Fig. 1 to Fig. 7 is please referred to, a kind of collecting box 10 is present embodiments provided, chamber inner wall can either be reduced
Noise can also play mixed uniformly purpose.It can also guarantee stable water pressure in chamber simultaneously, hydraulic pressure suddenly change is avoided to lead
The pressure of equipment of cause is uneven and the junction of drawing crack cover board 200 and box body 100, so avoid leak and it is dry fire be likely to form it is quick-fried
It is fried.
It should be noted that collecting box 10 provided in this embodiment can be applied to natural gas of industry exhaust gas heat exchanger,
And and who uniformly across, can also guarantee natural gas of industry exhaust gas heat exchanger using safe.With natural gas of industry tail
When gas-heat exchanger cooperates, collecting box 10 provided in this embodiment is used to cooperate with the water-changing tube of heat exchange unit, to direct water into
Water in collecting box 10 is imported water-changing tube by collecting box 10.
Collecting box 10 provided in this embodiment includes cover board 200 and box body 100, and box body 100 includes bottom wall 110 and is set to
The side wall 120 of bottom wall 110, bottom wall 110 and side wall 120 are surrounded with open chamber, and cover board 200 is connect and close with box body 100
Envelope is open, and cover board 200 is provided with multiple water inlets 201 with chamber, and bottom wall 110 is provided with the water outlet with chamber
103, spoiler 130 is provided on the inner wall of chamber.
It is understood that the bottom wall 110 of box body 100 and side wall 120 are used for the chamber surrounded, the chamber have it is open with
Convenient for manufacture.Cover board 200 and box body 100 cooperate, to close the opening.Water inlet 201 on cover board 200 is for intaking, chamber
For accommodating water, the water outlet 103 on bottom wall 110 is for being discharged.When in use, water inlet 201 is connect with water inlet pipe, to pass through
Water inlet pipe directs water into chamber, and water outlet 103 is connect with outlet pipe, and the indoor water of chamber is discharged by outlet pipe.In chamber
The spoiler 130 being arranged in chamber interior walls can either reduce the noise of chamber inner wall, can also play mixed uniformly purpose.Simultaneously
Also it can guarantee stable water pressure in chamber, avoid pressure of equipment caused by hydraulic pressure suddenly change uneven and drawing crack cover board 200 and box
The junction of body 100, and then the explosion for avoiding leak and dry combustion from being likely to form.
It should be noted that the spoiler 130 being arranged on the inner wall of chamber refers to that spoiler 130 is arranged in chamber
Wall, chamber are surrounded by the bottom wall 110 and side wall 120 of box body 100 and close opening by cover board 200.That is, spoiler 130
It can be set on bottom wall 110 or side wall 120, be also possible to spoiler 130 while being arranged on side wall 120 and bottom wall 110.
In usual place, bottom wall 110 is located under cover board 200, on usual cover board 200 and is not provided with spoiler 130.But therewith
Reversely in use, cover board 200, which is located on the indoor side of chamber, also can be set spoiler 130, to play the role of flow-disturbing.
Further, spoiler 130 can be to be set to the indoor protrusion of chamber, which can play the role of flow-disturbing, into
And realize above-mentioned function.In addition, the protrusion can be set on any inner wall of chamber.
Optionally, spoiler 130 includes the first trouble flow strip 131 and the second trouble flow strip 132, the first trouble flow strip 131 and second
Trouble flow strip 132 is arranged in a crossed manner.
It is understood that the first trouble flow strip 131 and the second trouble flow strip 132, which are staggered, can further promote flow-disturbing effect
Fruit keeps hydraulic pressure uniform and stable, guarantee equipment using safe.
Further, in the present embodiment, the quantity of the first trouble flow strip 131 and the second trouble flow strip 132 is multiple, and the
The extending direction of one trouble flow strip 131 and the extending direction of the second trouble flow strip 132 are mutually perpendicular to.First trouble flow strip 131 and second is disturbed
Stream item 132 surrounds " well " font between each other, is provided with recess between two adjacent the first trouble flow strips 131；Equally, in phase
Setting is also equipped with recess between two adjacent the second trouble flow strips 132.
Optionally, side wall 120 has opposite the first inner wall and the second inner wall, and spoiler 130 is respectively arranged at the
One inner wall, the second inner wall and bottom wall 110.Certainly, it is not limited to that, in the other embodiments of the application, spoiler 130
It can also be located on all inner walls.
Simultaneously, it should be noted that include the technology of the first trouble flow strip 131 and the second trouble flow strip 132 in conjunction with spoiler 130
Scheme, at least one of spoiler 130 on the first inner wall, the second inner wall and bottom wall 110 include the first spoiler 130 and the
Two spoilers 130.In other words, for example, in a certain implementation, the spoiler 130 of the first inner wall includes the first trouble flow strip 131
With the second trouble flow strip 132, further, the quantity of the first trouble flow strip 131 and the second trouble flow strip 132 is multiple and intersects ground
Setting；In other a certain implementation, the spoiler 130 of the second inner wall includes the first trouble flow strip 131 and the second trouble flow strip
132, further, the quantity of the first trouble flow strip 131 and the second trouble flow strip 132 is multiple and is arranged with intersecting；At other
Other implementation in, the spoiler 130 of bottom wall 110 includes the first trouble flow strip 131 and the second trouble flow strip 132, further,
The quantity of first trouble flow strip 131 and the second trouble flow strip 132 is multiple and is arranged with intersecting；Above-mentioned three kinds of situations can be according to
Demand arbitrarily occurs, and the two that can be occurred in which simultaneously or three.
Further, side wall 120 is also with first outside wall surface opposite with the first inner wall and opposite with the second inner wall
The second outside wall surface, the first outside wall surface and the second outside wall surface are provided with and 130 shape of spoiler on the position of opposite spoiler 130
The corresponding groove of shape.Such setting can reduce materials'use and reduce the weight of collecting box 10, and save the cost simultaneously has economy
Value, is also convenient for installing.
Optionally, cover board 200 is provided with clamping portion 210, and side wall 120 is provided with interconnecting piece 126, interconnecting piece 126 and clamping
Portion 210 is detachably connected.
It is understood that interconnecting piece 126 is detachably connected with clamping portion 210 and needs to guarantee watertight between the two
Envelope, to guarantee the normal work of collecting box 10.Removably cooperation can be convenient for the two between interconnecting piece 126 and clamping portion 210
Positioning and connection, and further be convenient for subsequent sealing.Sealing can use sealing ring or other modes.
Optionally, clamping portion 210 and interconnecting piece 126 weld and seal opening.When clamping portion 210 and interconnecting piece 126 use
When welding, i.e., using welding between cover board 200 and box body 100, at this point, when cavity indoor pressure is larger, clamping portion 210 and connection
Portion 126 can guarantee good seal always.And the junction between cover board 200 and box body 100 is because of the slight expansion of box body 100
It deforms and is arc-shaped, the suddenly change for further avoiding hydraulic pressure leads to pressure of equipment unevenness, drawing crack soldering opening, also avoids
Leak and dry combustion, further ensure equipment using safe.
Optionally, clamping portion 210 has clamping groove, and interconnecting piece 126 protrudes into clamping groove and connect with clamping groove.
Optionally, clamping portion 210 includes extension 211 and limiting section 212, and limiting section 212 is set to by extension 211
Cover board 200, and extension 211 and limiting section 212 and cover board 200 surround clamping groove, interconnecting piece 126 is abutted with extension 211.
Collecting box 10 provided in this embodiment the utility model has the advantages that the bottom wall 110 and side wall 120 of box body 100 are used to surround
Chamber, the chamber have opening in order to manufacture.Cover board 200 and box body 100 cooperate, to close the opening.On cover board 200 into
The mouth of a river 201 is for intaking, and chamber is for accommodating water, and the water outlet 103 on bottom wall 110 is for being discharged.When in use, water inlet
201 connect with water inlet pipe, and to be directed water into chamber by water inlet pipe, water outlet 103 is connect with outlet pipe, and chamber is indoor
Water is discharged by outlet pipe.The spoiler 130 being arranged on chamber inner wall can either reduce the noise of chamber inner wall, can also rise
To mixed uniformly purpose.It can also guarantee stable water pressure in chamber simultaneously, avoid pressure of equipment caused by hydraulic pressure suddenly change
The uneven and junction of drawing crack cover board 200 and box body 100, and then avoid leak and dry fire the explosion being likely to form.
Second embodiment
Fig. 1 to Fig. 7 is please referred to, a kind of natural gas of industry tail gas including above-mentioned collecting box 10 is present embodiments provided
Heat exchanger can either reduce the noise of chamber inner wall, can also play mixed uniformly purpose.It can also guarantee chamber simultaneously
Indoor stable water pressure avoids pressure of equipment caused by hydraulic pressure suddenly change uneven and the connection of drawing crack cover board 200 and box body 100
Place, and then the explosion for avoiding leak and dry combustion from being likely to form.
Collecting box 10 includes cover board 200 and box body 100, and box body 100 includes bottom wall 110 and the side wall for being set to bottom wall 110
120, bottom wall 110 and side wall 120 surround the chamber with opening, and cover board 200 connect with box body 100 and seal opening, cover board 200
Multiple water inlets 201 with chamber are provided with, bottom wall 110 is provided with the water outlet 103 with chamber, the inner wall of chamber
On be provided with spoiler 130.
Optionally, spoiler 130 includes the first trouble flow strip 131 and the second trouble flow strip 132, the first trouble flow strip 131 and second
Trouble flow strip 132 is arranged in a crossed manner.
Optionally, the quantity of the first trouble flow strip 131 and the second trouble flow strip 132 is multiple, and the first trouble flow strip 131 is prolonged
It stretches direction and the extending direction of the second trouble flow strip 132 is mutually perpendicular to.
Optionally, side wall 120 has opposite the first inner wall and the second inner wall, and spoiler 130 is respectively arranged at the
One inner wall, the second inner wall and bottom wall 110.
Optionally, side wall 120 is also with first outside wall surface opposite with the first inner wall and opposite with the second inner wall
Second outside wall surface, the first outside wall surface and the second outside wall surface are provided with and 130 shape of spoiler on the position of opposite spoiler 130
Corresponding groove.
Optionally, cover board 200 is provided with clamping portion 210, and side wall 120 is provided with interconnecting piece 126, interconnecting piece 126 and clamping
Portion 210 is detachably connected.
Optionally, clamping portion 210 has clamping groove, and interconnecting piece 126 protrudes into clamping groove and connect with clamping groove.
Optionally, clamping portion 210 includes extension 211 and limiting section 212, and limiting section 212 is set to by extension 211
Cover board 200, and extension 211 and limiting section 212 and cover board 200 surround clamping groove, interconnecting piece 126 is abutted with extension 211.
Optionally, clamping portion 210 and interconnecting piece 126 weld, to seal opening.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of collecting box, which is characterized in that including cover board and box body, the box body includes bottom wall and is set to the bottom wall
Side wall, the bottom wall and the side wall surround the chamber with opening, and the cover board connect with the box body and seals described spacious
Mouthful, the cover board is provided with multiple water inlets with the chamber, and the bottom wall is provided with to be gone out with the chamber
The mouth of a river is provided with spoiler on the inner wall of the chamber.
2. collecting box according to claim 1, which is characterized in that the spoiler includes the first trouble flow strip and the second flow-disturbing
Item, first trouble flow strip and second trouble flow strip are arranged in a crossed manner.
3. collecting box according to claim 2, which is characterized in that the number of first trouble flow strip and second trouble flow strip
Amount is multiple, and the extending direction of first trouble flow strip and the extending direction of second trouble flow strip are mutually perpendicular to.
4. collecting box described in any one of -3 according to claim 1, which is characterized in that the side wall has opposite first
Inner wall and the second inner wall, the spoiler are respectively arranged at first inner wall, second inner wall and the bottom wall.
5. collecting box according to claim 4, which is characterized in that the side wall also has opposite with first inner wall
The first outside wall surface and second outside wall surface opposite with second inner wall, first outside wall surface and second outside wall surface
Groove corresponding with the spoiler shape is provided on the position of the relatively described spoiler.
6. collecting box according to claim 1, which is characterized in that the cover board is provided with clamping portion, the side wall setting
There is interconnecting piece, the interconnecting piece and the clamping portion are detachably connected.
7. collecting box according to claim 6, which is characterized in that the clamping portion has clamping groove, and the interconnecting piece is stretched
Enter the clamping groove and is connect with the clamping groove.
8. collecting box according to claim 7, which is characterized in that the clamping portion includes extension and limiting section, described
Limiting section is set to the cover board by the extension, and the extension and the limiting section and the cover board surround it is described
Clamping groove, the interconnecting piece are abutted with the extension.
9. the collecting box according to any one of claim 6-8, which is characterized in that the clamping portion and the interconnecting piece
Welding, to seal the opening.
10. a kind of natural gas of industry exhaust gas heat exchanger, which is characterized in that including as described in any one of claim 1-9
Collecting box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821719550.9U CN208968340U (en) | 2018-10-22 | 2018-10-22 | Collecting box and natural gas of industry exhaust gas heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821719550.9U CN208968340U (en) | 2018-10-22 | 2018-10-22 | Collecting box and natural gas of industry exhaust gas heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208968340U true CN208968340U (en) | 2019-06-11 |
Family
ID=66760246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821719550.9U Active CN208968340U (en) | 2018-10-22 | 2018-10-22 | Collecting box and natural gas of industry exhaust gas heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208968340U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405624A (en) * | 2018-10-22 | 2019-03-01 | 崇州杨明电子产品有限公司 | Collecting box and natural gas of industry exhaust gas heat exchanger |
-
2018
- 2018-10-22 CN CN201821719550.9U patent/CN208968340U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405624A (en) * | 2018-10-22 | 2019-03-01 | 崇州杨明电子产品有限公司 | Collecting box and natural gas of industry exhaust gas heat exchanger |
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| CP03 | Change of name, title or address |
Address after: 611230 no.689, Chuangxin Avenue, Chongzhou Economic Development Zone, Chengdu, Sichuan Patentee after: Chengdu Yangming Shuangxin Technology Co.,Ltd. Address before: 610000 Chuangxin Avenue, Chongzhou Economic Development Zone, Chengdu, Sichuan Province Patentee before: CHONGZHOU YANGMING ELECTRONICS PRODUCTS Co.,Ltd. |