CN202229630U - Pressure-bearing heat exchanger using pipes for communicating, splicing and welding - Google Patents
Pressure-bearing heat exchanger using pipes for communicating, splicing and welding Download PDFInfo
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- CN202229630U CN202229630U CN2011203390862U CN201120339086U CN202229630U CN 202229630 U CN202229630 U CN 202229630U CN 2011203390862 U CN2011203390862 U CN 2011203390862U CN 201120339086 U CN201120339086 U CN 201120339086U CN 202229630 U CN202229630 U CN 202229630U
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Abstract
A pressure-bearing heat exchanger using pipes for communicating, splicing and welding comprises tap water heat absorption pipes, wherein a heat supply pipe is arranged in each tap water heat absorption pipe, the tap water heat absorption pipes are communicated through tap water communicating pipes, and the heat supply pipes are communicated through heat supply pipe communicating pipes. Seal heads of the tap water heat absorption pipes are edged outwards and embedded in tap water heat absorption pipe ports, and folded edges of the seal heads of the tap water heat absorption pipes and edges of the tap water heat absorption pipe ports are spliced, aligned with each other and pinched to be welded together. Holes are punched on pipe walls of the tap water heat absorption pipes and edged inwards, the tap water communicating pipes are inserted into the punched holes of the tap water heat absorption pipes, edges of tap water communicating pipe ports and the inner folded edges of the punched holes of the tap water heat absorption pipes are spliced, aligned with each other and pinched to be welded together. Heat supply pipe blocking boards are embedded in ports of the heat supply pipes and are edged outwards, and the folded edges and the edges of the tap water heat absorption pipe ports are spliced, aligned with each other and pinched to be welded. The pressure-bearing heat exchanger using the pipes for communicating, splicing and welding overcomes two large technical defects of the existing pressure-bearing heat exchanger, namely too high water leakage ratio in welding weld joint and incapability in continuous hot water generation, has no leakage, and can continuously generate hot water.
Description
Technical field
But the utility model relates to a kind of heating exchanger of installing and using on heating network not only heating but also can exchanging hot water bathing for, relates in particular to a kind of pipe UNICOM and connects weldering pressure-bearing type heat exchange device.
Background technology
The patent No. that the applicant applied on March 10th, 2007 is 200720019175.2, Granted publication number is called the patented product of " scale protective type counterflow type heat exchanger " for CN201021875Y, utility model name; Through the application of 3 heating phases, there is the technological deficiency of two aspects in former patent after the listing: first find display pipe, end cap, communicating pipe on welded joint structure and weld seam have obvious deficiency and defective in form; Heat has also satisfied not user's demand.Heat exchanger need be converted cold water and uses when bringing into use, but moment blent the hot water that stores and cooled off, a period of times such as need heat and could use continuation usefulness, a heat production water continuously of taking turns.5～10 minutes ne-leakages of air seal test 2.5Mpa pressurize when former patented product dispatches from the factory.But through heating period practicality 15～30 days; End socket welding point bead crack serious seepage in running water endothermic tube two ends just appears in the application process through expanding with heat and contract with cold; Play scale in outside; Very not attractive in appearance, water leakage ratio some areas are more than 35%, like Shijiazhuang, Hebei, Shandong Zibo, Huantai, Plain, mining area, Zaozhuang dormitory and other places.
The applicant has taked multiple measure; Increased the package tube wall thickness; Taked another termination degassing method weldering of a termination seal weld; Take product welding finishing air seal test not have leakage again, welded means such as negative pressure exhaust Kong Fa again at the welding line joint place with the vavuum pump exhaust, all unresolved former patented product seepy question.
The utility model people is bold in innovation through the repetition test of studying assiduously and has found leakage cause and illness; Its reason is that former patented product is to decorate tubing with thin-walled " 304 " stainless steel; Adopt traditional welding point, welding to be communicated with; Like conventional banjo fixing butt jointing, corner joint, lap joint, T connector and traditional weld seam form, like butt weld, angle welding, plug weld etc.(0.75～0.9mm) can not adapt in former patented product stainless steel thin-wall tubing is made for this traditional welded joint structure and welded seam form; Heat supply communicating pipe, running water connecting pipe joint are T connector, angle welding, heating tube; Running water endothermic tube termination end socket, heating tube shutoff plate joint are banjo fixing butt jointing, butt weld, and this is to cause one of former patented product leakage cause.The reverse-flow twin flue of former in addition patented product is the individual tubes cavity; Particularly end socket girth weld in two ends is not that rifle welding is accomplished in the seal weld termination process, is easy to produce malleation and causes at the welding point place and pore occurs, and former patented product two ends end socket is the banjo fixing butt jointing structure; An end socket weld seam contact is 4 places; Be easy to produce pore, pore airtight detection before dispatching from the factory not to come out to be embedded with hidden danger of quality, the significant deficiency that causes product to leak; Return of goods rate and repair rate are too high, and producer is forced to stop production.
Summary of the invention
The utility model thinking idea that breaks traditions solves the high technological deficiency of former patented product welded seam water leakage ratio, the extremely low pipe UNICOM of a kind of welded seam water leakage ratio is provided and has connect weldering pressure-bearing type heat exchange device.
For realizing above-mentioned purpose, the technical scheme that the utility model adopts is:
A kind of pipe UNICOM also connects weldering pressure-bearing type heat exchange device; Comprise: the running water endothermic tube more than two and two; Be provided with heating tube in the running water endothermic tube, be communicated with through running water communicating pipe between the running water endothermic tube, be communicated with through heating tube communicating pipe between the heating tube; Heating installation import and heating outlet fixedly are communicated with going out to hold with the inlet side of heating tube respectively, and running water inlet and running water outlet fixedly are communicated with going out to hold with the inlet side of running water endothermic tube respectively; It is characterized in that: the termination of running water endothermic tube is fixedly connected with running water endothermic tube end socket, and the termination of running water endothermic tube end socket and running water endothermic tube and connecing is welded to connect.
According to described pipe UNICOM and connect weldering pressure-bearing type heat exchange device; It is characterized in that: described running water endothermic tube end socket is outwards or to in-flanges; Be embedded in the running water endothermic tube port, the flange of running water endothermic tube end socket is with running water endothermic tube port limit and connect, the bilateral alignment pinch side weld and connect in succession.
According to described pipe UNICOM and connect weldering pressure-bearing type heat exchange device; It is characterized in that: described running water endothermic tube end socket is that outer convex end socket limit is outwards or to in-flanges; Perhaps indent arc end socket limit is outwards or to in-flanges; Perhaps plate shaped outwards or to in-flanges, perhaps outwards, inwardly boss shape is outwards or to in-flanges.
According to described pipe UNICOM and connect weldering pressure-bearing type heat exchange device; It is characterized in that: described running water endothermic tube tube wall is towards porose and in-flanges; Insert running water communicating pipe in the punching of running water endothermic tube, running water communicating pipe the port limit with the in-flanges of running water endothermic tube punching and connect, the bilateral alignment pinch side weld and connect in succession.
Be inlaid with heating tube shutoff plate in the port according to described heating tube, heating tube shutoff plate flanging or in-flanges, the flange of heating tube shutoff plate is with heating tube port limit and connect, the bilateral alignment pinch side weld and connect in succession.
According to described pipe UNICOM and connect weldering pressure-bearing type heat exchange device, it is characterized in that: described running water is provided with described heating tube communicating pipe accordingly in communicating pipe.
According to described pipe UNICOM and connect weldering pressure-bearing type heat exchange device, it is characterized in that: described running water communicating pipe design is at an end of two adjacent running water endothermic tubes, and adjacent next running water communicating pipe design is at the other end of two adjacent running water endothermic tubes.
According to described pipe UNICOM and connect weldering pressure-bearing type heat exchange device, it is characterized in that: between the described two adjacent running water endothermic tubes with running water communicating pipe the corresponding other end be fixedly connected with support member.
According to described pipe UNICOM and connect weldering pressure-bearing type heat exchange device, it is characterized in that: described heating installation import exports the same end that is arranged on heat exchanger the same side with running water; Described heating outlet and running water inlet are arranged on another same end of heat exchanger the same side.
According to described pipe UNICOM and connect weldering pressure-bearing type heat exchange device, it is characterized in that: described running water endothermic tube, running water communicating pipe, heating tube, heating tube communicating pipe, running water endothermic tube end socket, heating tube shutoff plate are stainless steel.
The beneficial effect of the utility model:
1, the utility model thinking idea that breaks traditions; Solve former patented product welded seam water leakage ratio too high with heat production water can not continuous two big technological deficiencies; To the hot water problem more than 38 ° of output continuously; The utility model has been taked increase heating tube heat transfer area, dwindles package, reduces the water storage cavity and solve.
2, take technological innovation at pipe connection, end socket, shutoff plate welding point place, take heating tube, running water endothermic tube to adopt two ends diagonal angle 180 ° of punching in-flanges, 1.5～2mm to be female pipe.
3, heat supply communicating pipe, running water heat absorption take the straight tube connection to be the son pipe communicating pipe; Son pipe and female pipe contact-making surface R angle plug-in type; Son pipe R angle crop does not have the gap and inserts in female pipe in-flanges hole; Two weldment joints also connect weldering, and the bilateral alignment wall of casing is combined into one, and argon arc welding is pinched the limit from molten downhand welding method in mother's mouth of pipe cavity.
4, heating tube shutoff plate flanging 3～5mm, no gap is embedded in the heating tube port.
5, running water endothermic tube end socket flanging 3～5mm, no gap is embedded in the running water endothermic tube port.Two weldments are in pipe port and connect bilateral alignment wall and be combined into one, take argon arc welding to pinch the limit from molten downhand welding method circumferential weld one rifle Welding Structure.This structure decrease welding stress and linear shrinkage distortion angular deformation etc.Reduce welding point, not sealing weld wire bond speed is fast and attractive in appearance, improves the weld properties of welding point, has increased compressive resistance.Improved the leakproof outlet capacity, water leakage ratio is extremely low.The 180 ° of punching in-flanges in running water endothermic tube diagonal angle, the straight tube plug-in type connection of running water communicating pipe also connects the welding pore-free, and welding bead is attractive in appearance, and anti-impact force is strong, gains in strength, and compression resistance is big, has alleviated thermal expansion shrinkage pressure.
6, the utility model adopts the insertion of pipe UNICOM, end socket, closure plate is inlayed and T-Ring seam plane one rifle Welding Structure, reduces welding point, does not form pore.This Welding Structure pressure-bearing, and connect, pinch limit, molten certainly, planar process welding, welding bead (seam) inwalls such as heating tube, heat supply communicating pipe, shutoff plate do not soak, and water can't corrode the welding bead inwall, the flow velocity degree power of the water welding bead inwall that rubbed not.Welding bead (seam) welding bead inside and outside walls such as shell running water endothermic tube, running water heat absorption communicating pipe, end socket do not soak.
7, the mode of the utility model heat exchange can be the counter-flow heat exchange mode; Take the fluid countercurrent current heat exchange in bathing with changing in (loosing) hot device; Step utilizes, and thermograde reduces soon, instant heating, and the counter-flow heat exchange mode is bigger than other heat exchange mode heat transfer MTDs; Heat exchange efficiency is high, good effect of heat exchange, and the bath hot water leaving water temperature is high.This technical scheme is the new breakthrough of bathing with field of heat exchangers.
7, the utility model running water endothermic tube and heating tube etc. can all adopt stainless steel material to make, and have saved the heat absorption copper pipe in the former patent, have practiced thrift raw material, low cost of manufacture.
8, little, the long flow path of the utility model cold fluid cavity (running water endothermic tube), less scaling obstruction, even if formed micro-incrustation scale, incrustation scale also adsorbs and is transferred on the heating tube outside wall surface, has stopped up not cold fluid pass.Running water endothermic tube caliber is little, is convenient to the artificial acid cleaning of irritating, and perhaps is placed directly in the sour pond and soaks scale removal.Product life cycle is long, and heat is big, and efficient is high, belongs to renewal product.
9, the utility model product does not have leakage, reduces maintenance rate, reduces labor intensity, and energy savings reduces cost, and has improved product quality, prolongs the service life of product.Be that creative invention is a water storage immediate heating type regeneration product, exhaustless hot water.
Description of drawings
Fig. 1 is the profile sketch map of the utility model.
Fig. 2 is the structural representation of the utility model.
Fig. 3 is the partial enlarged drawing of I among Fig. 2.
In the accompanying drawing: 1, heating installation import; 2, running water endothermic tube end socket; 3, running water outlet; 4, running water endothermic tube; 5, running water communicating pipe; 6, support member; 7, running water inlet; 8, heating outlet; 9, heating tube; 10, heating tube communicating pipe; 11, heating tube shutoff plate.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further:
The utility model pipe UNICOM also meets weldering pressure-bearing type heat exchange device such as Fig. 1, Fig. 2, shown in Figure 3; Comprise: the running water endothermic tube 4 more than two and two; Be provided with heating tube 9 in the running water endothermic tube 4; Be communicated with through running water communicating pipe 5 between the running water endothermic tube 4, be communicated with through heating tube communicating pipe 10 between the heating tube 9; Heating installation import 1 and heating outlet 8 respectively with the inlet side of heating tube 9 with go out end and fixedly be communicated with, running water inlet 7 and running water outlet 3 are respectively with the inlet side of running water endothermic tube 4 with go out to hold and fixedly be communicated with; It is characterized in that: the termination of running water endothermic tube 4 is fixedly connected with running water endothermic tube end socket 2, and the termination of running water endothermic tube end socket 2 and running water endothermic tube 4 and connecing is welded to connect.
Described running water endothermic tube end socket 2 is embedded in running water endothermic tube 4 ports outwards or to in-flanges, and the flange of running water endothermic tube end socket 2 is with running water endothermic tube 4 port limits and connect, the bilateral alignment pinch side weld and connect in succession.
Described running water endothermic tube end socket 2 be outer convex end socket limit outwards or to in-flanges, perhaps indent arc end socket limit is outwards or to in-flanges, and is perhaps plate shaped outwards or to in-flanges, perhaps outwards, inwardly boss shape is outwards or to in-flanges.
Described running water endothermic tube 4 tube walls are towards porose and in-flanges, insert running water communicating pipe 5 in 4 punchings of running water endothermic tubes, running water communicating pipes 5 the port limit with the in-flanges of running water endothermic tube 4 punchings and connect, the bilateral alignment pinch side weld and connect in succession.
Be inlaid with heating tube shutoff plate 11 in the port of described heating tube 9, heating tube shutoff plate 11 flangings or in-flanges, the flange of heating tube shutoff plate 11 is with heating tube 9 port limits and connect, the bilateral alignment pinch side weld and connect in succession.
Be provided with described heating tube communicating pipe 10 in described running water communicating pipe 5 accordingly.
Described running water communicating pipes 5 design is at an end of two adjacent running water endothermic tubes 4, and adjacent design of next running water communicating pipes 5 is at the other end of two adjacent running water endothermic tubes 4.
Between the described two adjacent running water endothermic tubes 4 with running water communicating pipes 5 the corresponding other end be fixedly connected with support member 6.
Described heating installation import 1 and running water outlet 3 are arranged on the same end of heat exchanger the same side; Described heating outlet 8 and running water inlet 7 are arranged on another same end of heat exchanger the same side.
Described running water endothermic tube, running water communicating pipe, heating tube, heating tube communicating pipe, running water endothermic tube end socket, heating tube shutoff plate are that stainless steel material is made.
The inventive point of the utility model: the utility model people thinking idea that breaks traditions, solve two big technological deficiencies of former patented product, the welded seam water leakage ratio too high with heat production water can not be continuous technical problem.1, can not continuous problem to producing more than 38 ° hot water, the utility model has been taked increase heating tube heat transfer area, dwindles package, reduces the water storage cavity and solve.2,, take heating tube, running water endothermic tube to adopt two ends diagonal angle 180 ° of punching in-flanges, 1.5～2mm to be female pipe in pipe connection, the place's technological innovation of end socket closure plate welding point.3, heat supply communicating pipe, running water heat absorption take the straight tube connection to be the son pipe communicating pipe; Son pipe and female pipe contact-making surface R angle plug-in type; Son pipe R angle crop does not have the gap and inserts in female pipe in-flanges hole; Two weldment joints also connect weldering casing bilateral alignment wall and are combined into one, and argon arc welding is pinched the limit from molten downhand welding method in mother's mouth of pipe cavity.4, heating tube, heating tube shutoff plate flanging 3～5mm do not have and are embedded in the gap in the heating tube port.5, running water endothermic tube, running water endothermic tube end socket flanging 3～5mm do not have and are embedded in the gap in the running water endothermic tube port.Two weldment joints are in pipe port and connect bilateral alignment wall and be combined into an argon arc welding and pinch the limit from molten downhand welding method girth weld one rifle welding structure.This structure decrease welding stress and linear shrinkage distortion angular deformation etc.It is fast and attractive in appearance to reduce not sealing weld of welding point wire bond speed, improves the weld properties of welding point, has increased compressive resistance.Pipe diagonal angle 180 ° of punching in-flanges straight tube plug-in type is communicated with the welding pore-free, and welding bead is attractive in appearance, and anti-impact force is strong, gains in strength, and compression resistance is big.Alleviated thermal expansion shrinkage pressure.
The utility model adopts the insertion of pipe UNICOM, end socket, closure plate is inlayed and T-Ring seam plane one rifle Welding Structure, reduces welding point, does not form pore.This Welding Structure pressure-bearing, and connect, pinch limit, molten certainly, downhand welding method welding, welding bead (seam) inwalls such as interior heating tube, heat supply communicating pipe, shutoff plate do not soak, and water can't corrode the welding bead inwall.The friction of the flow velocity degree power of water not the welding bead inwall.Welding bead (seam) welding bead inside and outside walls such as shell running water endothermic tube, running water heat absorption communicating pipe, end socket do not soak.
When the utility model uses heating installation import, heating outlet are connected with the heating pipe network pipeline respectively, running water inlet is connected with running water.Be communicated with through running water communicating pipe between the running water endothermic tube; Be communicated with through heating tube communicating pipe between the heating tube head and the tail.
The design of the utility model running water communicating pipe is at an end (like right-hand member) of two adjacent running water endothermic tubes, and adjacent next running water communicating pipe design is at the other end (like left end) of two adjacent running water endothermic tubes; Running water is provided with described heating tube communicating pipe accordingly in communicating pipe.In order to support and firm running water endothermic tube; Simultaneously also for attractive in appearance; Can between two adjacent running water endothermic tubes, not having the end of running water communicating pipe to be fixedly connected support member, is obstructed between support member and the running water endothermic tube, only plays and supports and firm effect.
Import of the utility model heating installation and heating outlet fixedly are communicated with terminal with the top of heating tube respectively, and running water inlet and running water outlet fixedly are communicated with terminal with the top of running water endothermic tube respectively.Install for ease, heating installation import of the utility model and heating outlet can be positioned at the two ends up and down of the same side of heat exchanger, and opening direction can be same direction; Opening direction also can be above-below direction.
The exist together same end (lower end) of heat exchanger the same side of the utility model running water inlet, heating outlet; Another same end (upper end) that running water exports, the heating installation import exists together heat exchanger the same side, the advantage that is provided with like this is: because heating outlet end heating temperature is lower, heating installation entrance point heating temperature is higher; Make the running water heat exchange begin heat exchange from the low temperature heating district; Progressively heat exchange exchanges the running water of heat for to the high-temperature region, and the running water temperature is increasingly high, makes full use of the heating installation thermal source and carries out pure countercurrent flow; And step utilization once more, improve the heat exchange effect.
The heating hot water directed flow passage that the utility model can be made up of heating installation import, heating tube, heating tube communicating pipe, heating outlet; Opposite with the running water directed flow channel direction of forming by running water inlet, running water endothermic tube, running water communicating pipe, running water outlet, constitute the counter-flow heat exchange structure.The mode of the utility model heat exchange can be the counter-flow heat exchange mode; Take the fluid countercurrent current heat exchange in bathing with changing in (loosing) hot device; Step utilizes, and thermograde reduces soon, and the counter-flow heat exchange mode is bigger than other heat exchange mode heat transfer MTDs; Heat exchange efficiency is high, good effect of heat exchange, and the bath hot water leaving water temperature is high.This technical scheme is the new breakthrough of bathing with field of heat exchangers.
The running water endothermic tube can be horizontally set in the utility model, also can be vertical setting.Satisfying under the condition of counter-flow heat exchange, the heating installation import in the utility model, heating outlet, running water inlet, running water outlet can be fixedly mounted on the diverse location of heat exchanger as required, and interchangeable.A plurality of running water endothermic tubes in the utility model can be designed to double, and running water endothermic tube, running water communicating pipe, heating tube, heating tube communicating pipe can also can be rectangular tube (flat tube) etc. for pipe.
Running water endothermic tube in the utility model, running water communicating pipe, heating tube, heating tube communicating pipe, running water endothermic tube end socket, heating tube shutoff plate etc. can select for use the stainless steel tube material to make, and have saved the copper pipe material, have reduced cost.
Embodiment recited above describes the preferred implementation of the utility model; Be not that design and protection domain to the utility model limits; Under the prerequisite that does not break away from the utility model design concept; Common engineers and technicians make the technical scheme of the utility model in this area various modification and improvement all should fall into the protection domain of the utility model.
Claims (10)
1. manage UNICOM and connect weldering pressure-bearing type heat exchange device for one kind; Comprise: the running water endothermic tube (4) more than two and two; Be provided with heating tube (9) in the running water endothermic tube (4); Be communicated with through running water communicating pipe (5) between the running water endothermic tube (4), be communicated with through heating tube communicating pipe (10) between the heating tube (9); Heating installation import (1) and heating outlet (8) fixedly are communicated with going out to hold with the inlet side of heating tube (9) respectively, and running water inlet (7) and running water outlet (3) fixedly are communicated with going out to hold with the inlet side of running water endothermic tube (4) respectively; It is characterized in that: the termination of running water endothermic tube (4) is fixedly connected with running water endothermic tube end socket (2), and the termination of running water endothermic tube end socket (2) and running water endothermic tube (4) and connecing is welded to connect.
2. pipe UNICOM according to claim 1 also connects weldering pressure-bearing type heat exchange device; It is characterized in that: described running water endothermic tube end socket (2) is outwards or to in-flanges; Be embedded in running water endothermic tube (4) port, the flange of running water endothermic tube end socket (2) is with running water endothermic tube (4) port limit and connect, the bilateral alignment pinch side weld and connect in succession.
3. pipe UNICOM according to claim 2 also connects weldering pressure-bearing type heat exchange device; It is characterized in that: described running water endothermic tube end socket (2) for outer convex end socket limit outwards or to in-flanges; Perhaps indent arc end socket limit is outwards or to in-flanges; Perhaps plate shaped outwards or to in-flanges, perhaps outwards, inwardly boss shape is outwards or to in-flanges.
4. pipe UNICOM according to claim 1 also connects weldering pressure-bearing type heat exchange device; It is characterized in that: described running water endothermic tube (4) tube wall is towards porose and in-flanges; Insert running water communicating pipe (5) in running water endothermic tube (4) punching, running water communicating pipe (5) port limit with the in-flanges of running water endothermic tube (4) punching and connect, the bilateral alignment pinch side weld and connect in succession.
5. pipe UNICOM according to claim 1 also connects weldering pressure-bearing type heat exchange device; It is characterized in that: be inlaid with heating tube shutoff plate (11) in the port of described heating tube (9); Heating tube shutoff plate (11) flanging or in-flanges, the flange of heating tube shutoff plate (11) is with heating tube (9) port limit and connect, the bilateral alignment pinch side weld and connect in succession.
6. pipe UNICOM according to claim 1 also connects weldering pressure-bearing type heat exchange device, it is characterized in that: be provided with described heating tube communicating pipe (10) in described running water communicating pipe (5) accordingly.
7. pipe UNICOM according to claim 1 also connects weldering pressure-bearing type heat exchange device; It is characterized in that: design of described running water communicating pipe (5) is at an end of two adjacent running water endothermic tubes (4), and the design of adjacent next running water communicating pipe (5) is at the other end of two adjacent running water endothermic tubes (4).
8. pipe UNICOM according to claim 1 also connects weldering pressure-bearing type heat exchange device, it is characterized in that: between the described two adjacent running water endothermic tubes (4) with running water communicating pipe (5) the corresponding other end be fixedly connected with support member (6).
9. pipe UNICOM according to claim 1 also connects weldering pressure-bearing type heat exchange device, and it is characterized in that: described heating installation import (1) and running water outlet (3) are arranged on the same end of heat exchanger the same side; Described heating outlet (8) and running water inlet (7) are arranged on another same end of heat exchanger the same side.
10. pipe UNICOM according to claim 1 also connects weldering pressure-bearing type heat exchange device, and it is characterized in that: described running water endothermic tube, running water communicating pipe, heating tube, heating tube communicating pipe, running water endothermic tube end socket, heating tube shutoff plate are that stainless steel material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203390862U CN202229630U (en) | 2011-09-11 | 2011-09-11 | Pressure-bearing heat exchanger using pipes for communicating, splicing and welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203390862U CN202229630U (en) | 2011-09-11 | 2011-09-11 | Pressure-bearing heat exchanger using pipes for communicating, splicing and welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202229630U true CN202229630U (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203390862U Expired - Fee Related CN202229630U (en) | 2011-09-11 | 2011-09-11 | Pressure-bearing heat exchanger using pipes for communicating, splicing and welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202229630U (en) |
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2011
- 2011-09-11 CN CN2011203390862U patent/CN202229630U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20150911 |
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| EXPY | Termination of patent right or utility model |