CN207963612U - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- CN207963612U CN207963612U CN201820249746.XU CN201820249746U CN207963612U CN 207963612 U CN207963612 U CN 207963612U CN 201820249746 U CN201820249746 U CN 201820249746U CN 207963612 U CN207963612 U CN 207963612U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- tube
- heat
- heat exchange
- collector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a kind of heat exchanger, including heat transfer mechanism, heat exchange mechanisms and condensate liquid collecting mechanism, heat exchange mechanisms are connected to condensate liquid collecting mechanism, and heat transfer mechanism is equipped with multiple thermal holes for spraying steam, and heat transfer mechanism is discharged hot steam to heat exchange mechanisms by thermal hole.In the utility model, set heat transfer mechanism, heat exchange mechanisms and each mechanism of condensate liquid collecting mechanism are mutual indepedent, but cooperate, one side steam is ejected into heat exchange mechanisms via heat transfer mechanism by thermal hole, then realizes steam and external environment heat exchange by heat exchange mechanisms；On the other hand, heat exchanger is collected by condensate liquid collecting mechanism and be discharged to condensed condensate liquid, effectively prevent reducing heat exchange area because condensate liquid assembles, to improve heat exchange efficiency；In addition, being sprayed by thermal hole so that steam uniformly, is steadily output in heat exchange mechanisms so that heat transfer effect is more longlasting.
Description
Technical field
The utility model belongs to field of heat exchange equipment, and in particular to a kind of heat exchanger.
Background technology
Use steam as the air heat exchanger of heat source, in heat transfer process, the heat main source of vapor heat exchanger is to steam
Vapour condenses the latent heat released, and by taking 150 DEG C of saturated steams as an example, 150 DEG C of vapor are turned into the heat of 150 DEG C of condensed waters release
Amount is 2114.3KJ/KG, and 150 DEG C of water cool to the heat ability 213.16KJ/KG of 100 DEG C of release, and in current heat exchanger row
The vapor heat exchanger used in industry has the condensed water largely accumulated that cannot be discharged in time in heat exchanger tube, makes steam contact heat-exchanging
The area of inside pipe wall is reduced, and peak use rate is not achieved in the heat exchange area of heat exchanger.In addition, finned tube both ends and pipe in heat exchanger
Plate is welded, and weld seam drawing crack can be caused because expanding with heat and contract with cold by being used for a long time, and leakage failure occur.
Utility model content
The utility model provides a kind of heat exchanger, to solve at least one of above-mentioned prior art problem.
One side according to the present utility model provides a kind of heat exchanger tube, including heat transfer mechanism, heat exchange mechanisms and condensation
Liquid collecting mechanism, heat exchange mechanisms are connected to condensate liquid collecting mechanism, and heat transfer mechanism is equipped with multiple heat conduction for spraying steam
Hole, heat transfer mechanism are discharged hot steam to heat exchange mechanisms by thermal hole.
In the utility model, set heat transfer mechanism, heat exchange mechanisms and each mechanism of condensate liquid collecting mechanism are mutually only
It is vertical, but cooperate, one side steam is ejected into heat exchange mechanisms via heat transfer mechanism by thermal hole, then by heat exchange mechanisms
Realize steam and external environment heat exchange；On the other hand, condensed condensate liquid is collected and is discharged by condensate liquid collecting mechanism and changed
Hot device effectively prevent reducing heat exchange area because condensate liquid assembles, to improve heat exchange efficiency；In addition, being made by thermal hole ejection
Steam uniformly, be steadily output in heat exchange mechanisms so that heat transfer effect is more longlasting.
In some embodiments, heat transfer mechanism includes interior collector and inner tube, and heat exchange mechanisms include at least one heat exchanger tube,
Condensate liquid collecting mechanism includes outer collector, and interior collector is connected to inner tube, and outer collector is connected to heat exchanger tube, and interior collector is located at outer collector
In vessel, inner tube is located in heat exchanger tube vessel.Steam is passed to inner tube via interior collector as a result, then passes through the heat conduction in inner tube
Hole is discharged to heat exchanger tube, realizes the heat exchange of hot steam and outside air；Meanwhile after steam is condensed into condensed water, in heat exchanger tube
Condensed water be flowed into outer collector and be discharged, to avoid heat exchanger tube from making what heat exchange area reduced to ask because condensed water is accumulated
Topic, greatly improves heat exchanger tube heat exchange area utilization rate, but also the system that heat transfer-heat exchange-collection is integrally formed, is conducive to heat exchange effect
The raising of rate.
In some embodiments, heat exchanger tube can be finned tube.As a result, by increasing fin in heat exchange pipe external surface,
The external surface area for increasing heat exchanger tube, to achieve the purpose that improve heat exchange efficiency.
In some embodiments, one end of heat exchanger tube can seal, and the other end can connect with outer collector in an inclined manner
It is logical.The inclined mode of heat exchanger tube, which is arranged, as a result, can be such that condensate liquid in heat exchanger tube accelerates low to potential energy under the effect of gravity
Position is flowed, and discharge is collected convenient for condensate liquid.
In some embodiments, one end of inner tube can seal, the other end can in an inclined manner with interior header in communication.
As a result, inner tube is consistent with heat exchanger tube gradient, it is built in heat exchanger tube convenient for inner tube.
In some embodiments, thermal hole can be located on the tube wall of inner tube, the blowing angle of thermal hole and inner tube
Center line is in 45° angle, and the aperture of thermal hole is 4mm.When steam is sprayed from inner tube toward heat transfer tube wall as a result, it is arranged in 45° angle
The contact surface that is sprayed of thermal hole can be rapidly distributed in heat exchanger tube convenient for steam than vertically spraying bigger.
In some embodiments, it can be equipped at least one inlet pipe connection on interior collector, can be equipped on outer collector
Drain connecting tube.External steam can be entered by inlet pipe connection in interior collector as a result, to be diverted in inner tube, be steamed
Vapour is ejected into heat transfer tube wall from the thermal hole of inner tube, can be condensed after steam release heat, become condensed water, cold in heat exchanger tube
Condensate can be flowed into outer collector, and be discharged from the drain connecting tube on outer collector.
In some embodiments, it can also include the heat exchange mechanisms protective device for being placed in heat exchanger tube surrounding, heat exchange mechanisms
Protective device includes upper junction plate, lower connecting plate, left tube sheet and right tube plate.As a result, upper junction plate, lower connecting plate, left tube sheet and
Right tube plate can form overall structure with heat exchange mechanisms, increase device stability, play the role of protecting single unit system.
In some embodiments, one end of heat exchanger tube can be interspersed in right tube plate, and heat exchanger tube connects with right tube plate activity
It connects.One end of heat exchanger tube is flexibly connected with right tube plate as a result, is not welded, i.e., one end of heat exchanger tube can be stretched relative to right tube plate
Contracting avoids the drawing crack weld seam that expands with heat and contract with cold, and increases service life of equipment.
In some embodiments, the periphery of right tube plate can be equipped with bobbin carriage.As a result, bobbin carriage can play to right tube plate and
The effect of heat exchange protection of pipe.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the heat exchanger of embodiment of the utility model；
Fig. 2 is the structural schematic diagram of inner tube in heat exchanger shown in FIG. 1；
Fig. 3 is enlarged structure schematic diagram at inner tube II in heat exchanger shown in Fig. 2；
Fig. 4 is the structural schematic diagram of interior collector in heat exchanger shown in FIG. 1；
Fig. 5 is the left view of interior collector shown in Fig. 4；
Fig. 6 is the structural schematic diagram of heat exchanger China and foreign countries shown in FIG. 1 collector；
Fig. 7 is the right view of outer collector shown in fig. 6；
Fig. 8 is the structural schematic diagram of heat exchanger tube in heat exchanger shown in FIG. 1；
Fig. 9 is the vertical view of heat exchanger shown in FIG. 1；
Figure 10 is the partial enlarged view at I in heat exchanger shown in Fig. 9；
Figure 11 is the structural schematic diagram of left plate pipe in heat exchanger shown in FIG. 1；
Figure 12 is the right view of left plate pipe in heat exchanger shown in Figure 11；
Figure 13 is the structural schematic diagram of upper junction plate in heat exchanger shown in FIG. 1.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 to Figure 13 schematically shows a kind of structure of the heat exchanger of embodiment of the utility model.
Heat exchanger includes heat transfer mechanism, heat exchange mechanisms and condensate liquid collecting mechanism, wherein heat exchange mechanisms are collected with condensate liquid
Mechanism connection, heat transfer mechanism are equipped with multiple thermal holes 21 for spraying steam, and heat transfer mechanism is steamed heat by thermal hole 21
Vapour is discharged to heat exchange mechanisms, then realizes the heat exchange of hot steam and air by heat exchange mechanisms again.
As shown in Fig. 1 and Figure 10, heat transfer mechanism includes interior collector 1 and inner tube 2, and the left end of inner tube 2 is mounted on interior collector 1
On, inner tube 2 is connected to interior collector 1.
As shown in Fig. 1 and Figure 10, heat exchange mechanisms include heat exchanger tube 3, and inner tube 2 is located in the vessel of heat exchanger tube 3, inner tube 2
Center line is overlapped with the center line of heat exchanger tube 3.
As shown in Figure 1, Figure 10 shows, condensate liquid collecting mechanism includes outer collector 4, and the left end of heat exchanger tube 3 is mounted on outer collector 4
On, heat exchanger tube 3 is connected to outer collector 4.
As shown in Fig. 1 and Figure 10, interior collector 1 is located in the vessel of outer collector 4, the center line of interior collector 1 and outer collector 4
Center line overlaps.
As shown in Figure 1, in the present embodiment, the quantity of inner tube 2 is 28,28 inner tubes 2 with 2 × 14 array ways side by side
On interior collector 1,28 inner tubes 2 are connected to interior collector 1.In other embodiments, the quantity of inner tube 2 can be according to changing
Heat request is adjusted.
As depicted in figs. 1 and 2, inner tube 2 isSteel pipe, the right end sealing of inner tube 2, left end do trimming processing
It is mounted on interior collector 1 in an inclined manner afterwards.
As shown in Figure 4 and Figure 5, both sides form connecting hole on interior collector 1, and side connecting hole is used for and inlet pipe connection 52
Connection, other side connecting hole with inner tube 2 for being connected to, and as shown in Figure 1 and Figure 2, the left end of inner tube 2 passes through the connection on interior collector 1
Hole is fixedly connected with interior collector 1 (as welded), and the trimming angle of 2 left end of inner tube is 42 °.
As shown in figure 3, just forming thermal hole 21 every a distance on the tube wall of inner tube 2, the both sides up and down of inner tube 2 are equal
Thermal hole 21 is formed, the blowing angle of thermal hole 21 is in 45° angle, aperture 4mm with the center line of inner tube 2.Steam is from inner tube 2
When the inner wall injection of past heat exchanger tube 3, the contact surface sprayed in the thermal hole 21 of 45° angle setting can be than vertically spraying bigger, just
It is rapidly distributed in heat exchanger tube 3 in steam.
In other embodiments, the angle of inclination and aperture of thermal hole 21 can be according in heat transfer requirements, heat exchanger tubes 3
Diameter etc. is adaptively adjusted.
Interior collector 1 usesSteel pipe, 1 upper and lower ends of interior collector use seal plate welding.
As shown in Figure 1, in the present embodiment, the quantity of heat exchanger tube 3 is 28, and 28 heat exchanger tubes 3 are mounted side by side in outer collector
On 4,28 heat exchanger tubes 3 are connected to outer collector 4.In other embodiments, the quantity of heat exchanger tube 3 can according to heat transfer requirements into
Row adjustment, heat exchanger tube 3 is identical as the quantity of inner tube 2, one inner tube 2 of corresponding installation in each heat exchanger tube 3.
As illustrated in figures 1 and 8, the right end closing of heat exchanger tube 3, left end are mounted on outer collection in an inclined manner after doing trimming processing
On pipe 4, connecting hole is formed on outer collector 4, the left end of heat exchanger tube 3, which is fixed by the connecting hole on outer collector 4 with outer collector 4, to be connected
It connects (as welded), the trimming angle of 3 left end of heat exchanger tube is 36 °, and heat exchanger tube 3 usesSteel pipe.Heat exchanger tube 3 is fin
Pipe rolls aluminum fin-stock on heat exchanger tube 3, fin outer diameter is 50mm, pitch of fins 3mm, piece thickness 0.3mm, and alkali is carried out after the completion of rolling
It washes, bleach.
Outer collector 4 isSteel pipe, as shown in Figure 1, there are two inlet pipe connections for installation on 1 side wall of interior collector
52, condensate liquid drain connecting tube 51 is installed on 4 side wall of outer collector, inlet pipe connection 52 is connected to interior collector 1, condensate liquid drain
Connecting tube 51 is connected to outer collector 4, and two inlet pipe connections 52 are respectively positioned on 51 top of condensate liquid drain connecting tube.
In the present embodiment, the quantity of inlet pipe connection 52 is two, and two inlet pipe connections 52 are quick convenient for steam, uniform
Be distributed in each heat exchanger tube 3.In other embodiments, the quantity of inlet pipe connection 52 can be arranged to according to heat transfer requirements
One or three or more.
The free end of inlet pipe connection 52 and condensate liquid drain connecting tube 51 can have external screw thread with vehicle, facilitate inlet pipe connection
52 connect with external steam output device, and condensate liquid drain connecting tube 51 is facilitated to be connect with external condensed water collecting device.
As shown in Figure 6 and Figure 7,4 upper and lower ends of outer collector use seal plate welding, and 4 side of outer collector forms placement drain
The preformed hole of connecting tube 51, inlet pipe connection 52, the other side are equipped with the connecting hole being connected to heat exchanger tube 3.
As shown in Figure 1, inlet pipe connection 52 is connected to interior collector 1, the connection of condensate liquid drain connecting tube 51 and outer collector 4
Connection, steam are entered after interior collector 1 by inlet pipe connection 52 and are diverted in each inner tube 2, and the steam in inner tube 2 passes through heat conduction
The heat exchange of hot steam and outside air, steam can may be implemented with angular injection to the inner wall of heat exchanger tube 3, heat exchanger tube 3 in hole 21
It can be condensed into liquid water after carrying out heat exchange by heat exchanger tube 3 and outside air, since inner tube 2 and heat exchanger tube 3 are obliquely installed, changed
Condensed water in heat pipe 3 can be imported into outer collector 4, and be discharged from the drain connecting tube 51 on outer collector 4, to keep away
Exempt from heat exchanger tube 3 because condensed water is accumulated so that heat exchange area is reduced the problem of, greatly improve 3 heat exchange area utilization rate of heat exchanger tube,
So that the system that heat transfer-heat exchange-collection is integrally formed, is conducive to the raising of heat exchange efficiency.
Heat exchanger tube protective device is placed in the surrounding of heat exchanger tube 3, as shown in Figure 1, heat exchange mechanisms protective device includes upper connection
Plate 7, lower connecting plate 8, left tube sheet 9 and right tube plate 10.Upper junction plate 7, lower connecting plate 8, left tube sheet 9,10 section of right tube plate are in
Right-angled trapezium increases device stability, plays protection single unit system convenient for forming Integral rectangular structure with inclined heat exchanger tube 3
Effect.Wherein the structure of upper junction plate 7 and lower connecting plate 8 is shown as shown in figure 13；Wherein structure such as Figure 11 of left tube sheet 9 and
Shown in Figure 12, the mounting hole for fixing heat exchanger tube 3 identical with 3 quantity of heat exchanger tube is formed on left tube sheet 9, heat exchanger tube 3 is worn
It is inserted in the mounting hole on left tube sheet 9, likewise, also forming the mounting hole of installation heat exchanger tube 3, heat exchanger tube 3 on right tube plate 10
Right end be interspersed in the mounting hole on right tube plate 10, heat exchanger tube 3 is flexibly connected with right tube plate 10, is not welded, i.e. heat exchanger tube 3
Right end can stretch relative to right tube plate 10, avoid the drawing crack weld seam that expands with heat and contract with cold, and increase service life of equipment so that heat exchanger tube 3
There is space to bring it about miniature deformation when expanding with heat and contract with cold.
As shown in Figure 1, the periphery of right tube plate 10 is equipped with bobbin carriage 11, bobbin carriage 11 can be to right tube plate 10 and heat exchanger tube 3
Right end plays a protective role.
As shown in figure 9, left tube sheet 9 and right tube plate 10 are fixed by nut 6 and upper junction plate 7 respectively.
In the utility model, external steam is entered through two inlet pipe connections 52 in interior collector 1, and by interior collector 1
It is passed in each inner tube 2, the steam in inner tube 2 is by the way that in the release to heat exchanger tube 3 of thermal hole 21 in inner tube 2, heat exchanger tube 3 is real
The heat exchange of existing hot steam and outside air, the steam in heat exchanger tube 3 are condensed into condensed water after heat exchange, in heat exchanger tube 3
Condensed water can be imported into outer collector 4, the condensed water of outer collector 4 carries out discharge processing through subcooling condensate drain connecting tube 51,
So as to avoid the problem that heat exchanger tube 3 makes heat exchange area reduce because condensed water is accumulated, heat exchanger tube heat exchange area is greatly improved
Utilization rate, but also the system that heat transfer-heat exchange-collection is integrally formed, is conducive to the raising of heat exchange efficiency.
In the utility model, two inlet pipe connections 52 of setting are quick convenient for steam, are evenly dispersed to each heat exchanger tube 3
In；Due to being provided with the thermal hole 21 with the center line of inner tube 2 in 45° angle on the tube wall of inner tube 2, compared with vertical injection, make
Obtain steam has the contact surface of bigger after the injection of thermal hole 21 with heat exchanger tube 3, is condensed after steam and external environment heat exchange
At liquid, since inner tube 2 and heat exchanger tube 3 are obliquely installed so that the condensation liquid energy in heat exchanger tube 3 is along 3 tube wall of heat exchanger tube
It is imported into rapidly in outer collector 4, is finally discharged by condensate liquid drain connecting tube 51；Wherein, heat exchanger tube 3 is not welded with right tube plate 10
Fixed, the right end of heat exchanger tube 3 can stretch relative to right tube plate 10, can be set in this way to avoid the drawing crack weld seam that expands with heat and contract with cold, increase
Standby service life.
The heat exchanger of the utility model so that the area that steam participates in heat exchange increases, and the steam for participating in heat exchange is more steady
It is fixed, evenly, compared with the steam heater with homalographic, the heat exchange efficiency of the heat exchanger of the utility model improve 35% with
On, service life doubles above.
Above-described is only some embodiments of the utility model.For those of ordinary skill in the art,
Without departing from the concept of the present invention, various modifications and improvements can be made, these belong to this practicality
Novel protection domain.
Claims (10)
1. heat exchanger, which is characterized in that including heat transfer mechanism, heat exchange mechanisms and condensate liquid collecting mechanism, the heat exchange mechanisms with
Condensate liquid collecting mechanism is connected to, and heat transfer mechanism is equipped with multiple thermal holes for spraying steam（21）, heat transfer mechanism is by leading
Hot hole（21）Hot steam is discharged to heat exchange mechanisms.
2. heat exchanger according to claim 1, which is characterized in that the heat transfer mechanism includes interior collector（1）And inner tube
（2）, the heat exchange mechanisms include at least one heat exchanger tube（3）, the condensate liquid collecting mechanism includes outer collector（4）, described interior
Collector（1）With inner tube（2）Connection, outer collector（4）With heat exchanger tube（3）Connection, interior collector（1）Positioned at outer collector（4）It is interior in vessel
Pipe（2）Positioned at heat exchanger tube（3）In vessel.
3. heat exchanger according to claim 2, which is characterized in that said inner tube（2）One end sealing, the other end is to tilt
Mode and interior collector（1）Connection.
4. heat exchanger according to claim 2, which is characterized in that the heat exchanger tube（3）It is finned tube.
5. heat exchanger according to claim 2, which is characterized in that the heat exchanger tube（3）One end sealing, the other end is to incline
Rectangle formula and outer collector（4）Connection.
6. heat exchanger according to claim 1, which is characterized in that the thermal hole（21）It is located at inner tube（2）Tube wall on,
Thermal hole（21）Blowing angle and inner tube（2）Center line be in 45 °, thermal hole（21）Aperture be 4mm.
7. the heat exchanger according to any one of claim 2~5, which is characterized in that the interior collector（1）It is equipped at least
One inlet pipe connection（52）, outer collector（4）It is equipped with drain connecting tube（51）.
8. the heat exchanger according to any one of claim 2~6, which is characterized in that further include being placed in heat exchanger tube（3）Surrounding
Heat exchange mechanisms protective device, the heat exchange mechanisms protective device includes upper junction plate（7）, lower connecting plate（8）, left tube sheet（9）
And right tube plate（10）.
9. heat exchanger according to claim 8, which is characterized in that the heat exchanger tube（3）One end be interspersed in right tube plate
（10）In, heat exchanger tube（3）With right tube plate（10）Flexible connection.
10. heat exchanger according to claim 8, which is characterized in that the right tube plate（10）Periphery be equipped with bobbin carriage（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820249746.XU CN207963612U (en) | 2018-02-11 | 2018-02-11 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820249746.XU CN207963612U (en) | 2018-02-11 | 2018-02-11 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207963612U true CN207963612U (en) | 2018-10-12 |
Family
ID=63739151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820249746.XU Expired - Fee Related CN207963612U (en) | 2018-02-11 | 2018-02-11 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207963612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168359A (en) * | 2018-02-11 | 2018-06-15 | 广州莱顺换热机械有限公司 | Heat exchanger |
-
2018
- 2018-02-11 CN CN201820249746.XU patent/CN207963612U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168359A (en) * | 2018-02-11 | 2018-06-15 | 广州莱顺换热机械有限公司 | Heat exchanger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100712012B1 (en) | Evacuated tubular solar collector with eccentric type manifold flange | |
| CN104034178B (en) | A kind of plate evaporation air cooling tubes condenser | |
| CN207963612U (en) | Heat exchanger | |
| CN1530601A (en) | Main body of absorbing air-conditioner | |
| CN110255640A (en) | Contact evaporator and its method | |
| CN209147780U (en) | A kind of double tubesheet U-shaped shell high-temperature heat-exchanging | |
| CN209801852U (en) | Vertical falling film absorber and second-class two-stage absorption heat pump | |
| CN204705242U (en) | Energy-conservation heat exchangers for district heating | |
| CN108168359A (en) | Heat exchanger | |
| CN109631392A (en) | A kind of vertical falling-film absorber and the second class twin-stage absorption heat pump | |
| CN208998579U (en) | A kind of Steam Turbine Integral Condenser | |
| CN210904987U (en) | Efficient secondary evaporation device | |
| CN203286907U (en) | Shell-and-tube air cooler | |
| CN208536372U (en) | Heat exchange water tank and water heater | |
| CN206593342U (en) | A kind of efficient evaporating type condensing finned heat exchanger | |
| CN206724734U (en) | A kind of efficient quick condenser | |
| CN213179496U (en) | Rotary kiln waste heat recovery device | |
| CN108507379A (en) | A kind of gas heat exchanger convenient for extraction heat exchanger tube | |
| CN212482176U (en) | Multi-pipeline efficient heat exchanger | |
| CN214747459U (en) | High-fin energy-saving heat exchange tube of cold drying machine | |
| CN203846011U (en) | Wine steam condenser | |
| CN215984079U (en) | Efficient countercurrent evaporation type condenser | |
| CN217715524U (en) | High-efficiency evaporator of heat pump water heater | |
| CN108225083A (en) | A kind of waste heat recovery furnace | |
| CN103292609B (en) | Shell-and-tube air cooler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 Termination date: 20210211 |