CN106839823A - A kind of HP boiler water deflection bar type preheater and chemical reaction equipment - Google Patents
A kind of HP boiler water deflection bar type preheater and chemical reaction equipment Download PDFInfo
- Publication number
- CN106839823A CN106839823A CN201710181669.9A CN201710181669A CN106839823A CN 106839823 A CN106839823 A CN 106839823A CN 201710181669 A CN201710181669 A CN 201710181669A CN 106839823 A CN106839823 A CN 106839823A
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- CN
- China
- Prior art keywords
- tube
- gas
- tube sheet
- shell
- high temperature
- Prior art date
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- Pending
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 68
- 239000012495 reaction gas Substances 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 230000003628 erosive effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000008646 thermal stress Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000498 cooling water Substances 0.000 description 7
- 239000002918 waste heat Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000002826 coolant Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/06—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits having a single U-bend
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/028—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
Abstract
The invention discloses a kind of HP boiler water deflection bar type preheater, it includes shell, and the inner chamber of shell is divided into the tube sheet of heat exchanging chamber and water cavity；Water cavity is divided into not connected intake antrum and water chamber, and tube bundle wrapper bucket is provided with guest who is not a relative, in tube bundle wrapper bucket, one end of U-shaped heat exchanger tube connects intake antrum through tube sheet, the other end connects water chamber through tube sheet, and cage connection has high pressure extenral header, has interconnecting part between tube bank sleeve and tube sheet；Tube bank sleeve is formed as header in high temperature away from one end of tube sheet, there is gas passage between the outer wall and the inwall of shell of tube bank sleeve, the gas entered through gas feed can successively through the gap in high temperature between header, U-shaped heat exchanger tube, interconnecting part, gas passage after, discharge the preheater through gas vent.The invention also discloses a kind of chemical reaction equipment for exothermic reaction for being provided with above-mentioned preheater.The present invention has tube sheet thermal stress less, beneficial to maintenance, the advantages of manufacture difficulty is small.
Description
Technical field
It is a kind of waste-heat recovery device of chemical reactor, specifically the invention belongs to technical field of chemical
A kind of material requirements is not high, manufacturing cost is relatively low, beneficial to maintenance, high thermal efficiency horizontal high-pressure boiler water deflection bar type preheating
Device.
Background technology
At present, the waste-heat recovery device after chemical reaction has larger improvement, typically distinguishes high temperature and high pressure, adopts
With double sleeve pipe or the form of triple tube, process gas are entered from inner tube, go out from outer tube, although be to have separated high temperature and high pressure
Area, but due to being multiple sleeve pipe, therefore compare waste on more loaded down with trivial details, material usage in manufacture；In addition, multiple sleeve pipe
Cause heat exchange efficiency not high.
Heat exchanger tube in traditional waste-heat recovery device is substantially extended in one direction, and the two ends of heat exchanger tube are separately fixed at
On different tube sheets, expansion is produced when heat exchanger tube is heated, thermal stress concentrations are caused, to avoid thermal stress from causing equipment
Failure is, it is necessary to using high-grade stainless steel material, the thickness of heat exchanger tube is also thicker.
In waste-heat recovery device, the inlet end and tube sheet of high-temperature region heat exchanger tube are because long-time is by high-temperature technology gas
Impact, is easily damaged, and is to use welding structure, unfavorable maintenance.To avoid drawbacks described above, people improve the peace of heat exchanger tube
Dress mode, but, exchanger tubes and tubesheets welding region cannot be avoided to be in highest temperature region always, in use because of heat
Stress concentration and cause the tube head of heat exchanger tube to weld cracking or the phenomenon such as tube sheet cracking.Current waste-heat recovery device is in manufacture, heat exchange
All there are many not enough places in the aspects such as efficiency, material usage and maintenance.
The content of the invention
For existing waste-heat recovery device material usage it is many, heat exchange efficiency is low, unfavorable maintenance, manufacture difficulty are big, tube sheet
Thermal stress is concentrated, the hot junction easy problems of crack of exchanger tubes and tubesheets weld seam, and the purpose of the application is to provide a kind of preheating first
Device, at least partly to solve the above problems, concrete technical scheme is as follows：
A kind of HP boiler water deflection bar type preheater, it includes the shell of closed at both ends, is arranged on the tube sheet in shell,
The inner chamber of shell is divided into heat exchanging chamber and water cavity by the tube sheet；Fragmenting plate is installed in water cavity, be divided into for water cavity by the fragmenting plate
Tube sheet is divided into two parts of water entering section and outlet part by not connected intake antrum and water chamber, fragmenting plate, is pacified on shell
Water inlet and the delivery port for connecting water chamber equipped with connection intake antrum；
Tube bank sleeve is installed in heat exchanging chamber, baffling bar assembly is installed and by some U-shaped heat exchanger tubes in tube bank sleeve
The U-shaped heat-exchanging tube bundle for being constituted, U-shaped heat exchanger tube is movably supported in the rod baffle in baffling bar assembly；The one of U-shaped heat exchanger tube
End sealing is fixed on the water entering section of tube sheet and connects intake antrum, and the other end of U-shaped heat exchanger tube is fixed on the outlet part of tube sheet
Go up and connect water chamber, intake antrum through U-shaped heat exchanger tube inner space water chamber；
Shell extends to form high pressure extenral header away from one end of tube sheet, and the inner chamber of high pressure extenral header forms connection heat exchanging chamber
Return-air chamber, is provided with the inlet sleeve and gas vent in connection return-air chamber on high pressure extenral header；Restrain sleeve towards tube sheet
One end is opening end, has the interconnecting part connected inside and outside tube bundle wrapper cylinder between the opening end and tube sheet；Tube bank sleeve is away from tube sheet
One end be formed as header in high temperature, in high temperature header be located at return-air chamber in, be provided with gas feed on header in high temperature；
There is gas passage between the outer wall and the inwall of shell of tube bank sleeve, the gas entered through gas feed can
Successively through the gap in high temperature between header, U-shaped heat exchanger tube, interconnecting part, gas passage after, discharge the preheating through gas vent
Device.The U-shaped heat exchanger tube is preferably welded on tube sheet using tube sheet fillet welding mode.
When the invention is employed, complete reaction chemical gas from gas feed enter, then into U-shaped heat exchanger tube it
Between gap, chemical gas after U-shaped heat exchanger tube carries out heat exchange with following cooling waters temperature reduction, temperature reduction
The gas passage that chemical gas are entered between the outer wall and the inwall of shell of tube bank sleeve from interconnecting part, most afterwards through gas vent
Discharge, into lower to operation；Cooling water is entered into intake antrum by water inlet, then into the inner chamber of U-shaped heat exchanger tube, is passed through
Rise with temperature after the heat exchange of above-mentioned chemical gas, the cooling water after temperature rises exits into water chamber from U-shaped heat exchanger tube, so
Discharged by outlet pipe, enter into next procedure.
It is high-temperature medium in heat exchanger tube in traditional waste heat boiler, heat exchanger tube is always held at the condition of high temperature, and at this
In application, high-temperature medium is outside heat exchanger tube, and cooling medium is walked in pipe, and the two ends of heat exchanger tube are arranged at into the same side, and
Among the encirclement of cooling medium, due to cooling medium, relative to high-temperature medium, its temperature is relatively low, makes exchanger tubes and tubesheets
Connecting portion is completely in the water environment of relative low temperature, eliminates high temperature stress hidden danger, is conducive to the service life of extension device.
In the present invention, using baffling bar assembly, baffling bar assembly has the advantages that lower resistance, rod baffle in baffling bar assembly
It is additionally operable to support U-shaped heat exchanger tube, because U-shaped heat exchanger tube is movably supported in rod baffle, when U-shaped heat exchanger tube becomes due to temperature
When changing and producing flexible, the U-shaped end of U-shaped heat exchanger tube can move freely, it is to avoid the heat exchanger tube of straight-bar type when producing flexible,
To side camber, and can only therefrom produce larger stress.Simultaneously because employing U-shaped heat exchanger tube, heat exchanger tube can be set
Count into the elongate conduit compared with big L/D ratio, to extend the heat-exchange time of cooling water and high-temperature gas, improve heat exchange efficiency.
In the present invention, header is arranged in shell in tube bank sleeve and high temperature, is entered entering into air inlet due to high-temperature gas
After mouthful, header in high temperature is first into, in header in high temperature, gas is in maximum temperature, when gas enters through U-shaped heat exchanger tube
During row, temperature is gradually reduced, in the gas passage entered between the outer wall and the inwall of shell of tube bank sleeve, now, gas
Temperature touched the bottom, therefore in the present invention, header undertakes high-temperature part only in high temperature, including high pressure extenral header exists
Interior shell bears the high pressure of gas, is not subject to the high temperature of gas, and high temperature is with two harsh conditions of high pressure by shell and high temperature
Header separately undertakes, and reduces material requirement and the manufacture difficulty of shell, both reduces investment outlay, and safer.
Further, also including High Temperature Gas impingement baffle, the High Temperature Gas impingement baffle is arranged on header or tube bank sleeve in high temperature
It is interior, and between U-shaped heat-exchanging tube bundle and gas feed.Specifically, the High Temperature Gas impingement baffle is porous plate.Or the high temperature
Gas impingement baffle includes some disc that the substrate of annular and the inner edge along substrate extend internally, and gas is formed between adjacent disc
Body passage.
The outer peripheral face of the porous plate is fixed on the inwall of header in high temperature or tube bank sleeve, the central part of porous plate to
The gas feed direction projection of header in high temperature.
The setting of High Temperature Gas impingement baffle can avoid enter into the high-temperature gas of header in high temperature to U-shaped heat exchanger tube and baffling
Bar assembly forms larger impact, and associated components is produced strenuous vibration, influences the bonding strength between each part, and influence sets
Safety is put to use and the life-span.
Further, the shell is horizontally disposed, and the water inlet is located at the lower section of shell, and the delivery port is located at shell
Top.This is designed to increase heat transfer effect, while facilitating installation of the invention and maintenance.
Further, the interconnecting part is formed by tube bank sleeve towards the breach on the side wall of one end of tube sheet, or by managing
Collar cylinder is formed towards the through hole on the side wall of one end of tube sheet.Above-mentioned design can easily tube bank sleeve on formed connect
Logical portion, it is not necessary to use other complicated parts, with simplification structure of the invention, and effectively improves service life.
Secondly, the application also provides a kind of chemical reaction equipment for exothermic reaction, and it is included in above-mentioned technical proposal
HP boiler water deflection bar type preheater described in any one, the chemical reaction equipment also includes reactor, the reactor
To on the inlet sleeve of preheater, the reaction gas outlet of reactor is connected in the gas feed of preheater cage connection.
The heat energy that this chemical reaction equipment can will effectively complete entrained by the unstripped gas of reaction is transmitted with security and stability
To cooling water.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of the invention.
Fig. 2 is the structural representation of another embodiment of the invention.
Specific embodiment
Embodiment 1
Refering to Fig. 1, a kind of HP boiler water deflection bar type preheater 300, it includes the shell 6 of closed at both ends, the shell 6
Be cylindrical in shape, drive end bearing bracket 24 be installed in one end of shell 6, the other end install with rear end cap 14, front end bonnet bolt 27 is by front end
Lid 24 is fastened on one end of shell, and forward end seal 28 is provided between drive end bearing bracket 24 and the end face of shell.Rear end cap spiral shell
Be fastened on rear end cap 14 on the other end of shell by bolt 17, and back-end sealing part is provided between rear end cap 14 and the end face of shell
18。
Tube sheet 11 is provided with shell 6, the inner chamber of shell 6 is divided into heat exchanging chamber and water cavity 22 by the tube sheet 11；In water
Fragmenting plate 19 is installed in chamber 22,22 points by water cavity of the fragmenting plate 19 is not connected intake antrum 221 and water chamber 222, is divided
Cut plate 19 and tube sheet 11 is divided into 112 two parts of water entering section 111 and outlet part, connection intake antrum 221 is installed on shell 6
Water inlet 15 and the delivery port 12 for connecting water chamber 222.Fragmenting plate 19 is a folded plate, and the side of folded plate is welded on tube sheet,
Other sides are welded on shell 6, and the space that folded plate and shell are surrounded forms water chamber, and the folded plate is without rear end cap 14 without connecing
Touch, to be convenient to the installation of rear end cap 14.
Tube bank sleeve 9 is installed in heat exchanging chamber, baffling bar assembly 10 is installed and is changed by some U-shapeds in tube bank sleeve 9
The U-shaped heat-exchanging tube bundle 8 that heat pipe 81 is constituted, U-shaped heat exchanger tube 81 is movably supported in the rod baffle 33 in baffling bar assembly 10；
U-shaped heat exchanger tube 81 one end sealing be fixed on the water entering section 111 of tube sheet 11 and connect intake antrum 221, U-shaped heat exchanger tube it is another
One end is fixed on the outlet part 112 of tube sheet 11 and connects water chamber 222, and intake antrum 221 connects through the inner chamber of U-shaped heat exchanger tube 81
Pass-out water cavity 222.U-shaped heat exchanger tube is welded on tube sheet using tube sheet fillet welding mode.
Shell 6 extends to form high pressure extenral header 4 away from one end of tube sheet 11, and the inner chamber of high pressure extenral header 4 forms connection and changes
The return-air chamber 21 in hot chamber, is provided with the inlet sleeve 31 and gas vent 5 in connection return-air chamber 21 on high pressure extenral header 4；Tube bank
Sleeve 9 is opening end towards one end of tube sheet 11, has the interconnecting part connected inside and outside tube bundle wrapper cylinder between the opening end and tube sheet
91.Tube bank sleeve 9 is formed as header 16 in high temperature away from one end of tube sheet 11, and header 16 is located in return-air chamber 21 in high temperature,
Gas feed 32 is provided with high temperature on header 16.Wherein interconnecting part 91 by tube bank sleeve 9 towards one end of tube sheet 11 side wall
On breach formed, in other embodiments, interconnecting part can also be by tube bank sleeve towards on the side wall of one end of tube sheet
Through hole is formed.
There is gas passage 35 between the outer wall and the inwall of shell 6 of tube bank sleeve 9, through the gas that gas feed 32 enters
Body can successively through the gap between header in high temperature 16, U-shaped heat exchanger tube 81, interconnecting part 91, gas passage 35 after, go out through gas
Mouth 5 discharges the preheater in the present embodiment.
High Temperature Gas impingement baffle 7 is installed in tube bank sleeve 9, and between U-shaped heat-exchanging tube bundle and gas feed, high temperature
Impingement baffle 7 is a porous plate, and the porous plate is located at tube bank sleeve 9 and closes on the edge of one end of header 16 in high temperature, and is welded on pipe
On collar cylinder 9, the central part of porous plate is raised to the direction of gas feed 32 of header in high temperature.
In other embodiments, High Temperature Gas impingement baffle can also be formed including annular substrate and along substrate inner edge to
Some disc of interior extension, gas passage is formed between adjacent disc.
When the shell 6 of the preheater 300 in the present embodiment is in horizontally disposed, water inlet 15 is located at the lower section of outer 6 shell, goes out
The mouth of a river 12 is located at the top of shell 6.
Interface 23 for installing correlate meter is installed on the side wall in return-air chamber, bearing 25 is installed on shell.
Embodiment 2
Refer to Fig. 2, a kind of chemical reaction equipment 500 for exothermic reaction, it includes the pressure cooker described in embodiment 1
Stove water deflection bar type preheater 300 and reactor 400, the shell 1 of reactor 400 are connected to preheater 300 by adpting flange 3
Inlet sleeve 31 on, the reaction gas outlet 2 of reactor 400 is connected in the gas feed 32 of preheater 300, in reaction gas
Metal connecting hose is installed between outlet 2 and gas feed 32.
The reacted gas outlet 2 of reacting gas of reaction is completed in reactor 400 and gas feed 32 enters into preheating
In device 300, then reaction gas is entered into tube bank sleeve 9 through header in high temperature 16, and reaction gas flow is through each U in tube bank sleeve 9
Cooling water in gap between shape heat exchanger tube 81, with U-shaped heat exchanger tube 81 is exchanged heat and is lowered the temperature, and is then entered through interconnecting part 91
Gas passage 35 between the outer wall and the inwall of shell 6 of tube bank sleeve 9, enters back into return-air chamber 21, most afterwards through gas
Outlet 5 is discharged preheater and is entered into down to operation.
Cooling water is entered into intake antrum 221 by water inlet 15, is then allocated and is flowed into the interior of each U-shaped heat exchanger tube 81
Reaction gas in chamber, with tube bank sleeve 9 is exchanged heat and is heated up, and is then flowed into water chamber 222, is most discharged through delivery port 12 afterwards
Preheater is as boiler feed water or for other purposes.
Claims (8)
1. a kind of HP boiler water deflection bar type preheater, it is characterised in that the shell including closed at both ends, is arranged in shell
Tube sheet, the inner chamber of shell is divided into heat exchanging chamber and water cavity by the tube sheet；Fragmenting plate is installed in water cavity, the fragmenting plate is by water
Chamber is divided into not connected intake antrum and water chamber, and tube sheet is divided into two parts of water entering section and outlet part by fragmenting plate, outside
The water inlet and the delivery port for connecting water chamber of connection intake antrum are installed on shell；
Tube bank sleeve is installed in heat exchanging chamber, baffling bar assembly is installed and by some U-shaped heat exchanger tube institutes group in tube bank sleeve
Into U-shaped heat-exchanging tube bundle, U-shaped heat exchanger tube is movably supported in the rod baffle in baffling bar assembly；One end of U-shaped heat exchanger tube is close
Sealing is scheduled on the water entering section of tube sheet and connects intake antrum, the other end of U-shaped heat exchanger tube be fixed on the outlet part of tube sheet and
Connection water chamber, intake antrum through U-shaped heat exchanger tube inner space water chamber；
Shell extends to form high pressure extenral header away from one end of tube sheet, and the inner chamber of high pressure extenral header forms the return-air of connection heat exchanging chamber
Chamber, is provided with the inlet sleeve and gas vent in connection return-air chamber on high pressure extenral header；The one end of tube bank sleeve towards tube sheet
It is opening end, there is the interconnecting part connected inside and outside tube bundle wrapper cylinder between the opening end and tube sheet；Tube bank sleeve is away from the one of tube sheet
End is formed as header in high temperature, and header is located in return-air chamber in high temperature, and gas feed is provided with header in high temperature；
There is gas passage between the outer wall and the inwall of shell of tube bank sleeve, the gas entered through gas feed can be successively
After through the gap in high temperature between header, U-shaped heat exchanger tube, interconnecting part, gas passage, the preheater is discharged through gas vent.
2. preheater according to claim 1, it is characterised in that also including High Temperature Gas impingement baffle, the High Temperature Gas erosion control
Plate is arranged in high temperature in header or tube bank sleeve, and between U-shaped heat-exchanging tube bundle and gas feed.
3. preheater according to claim 2, it is characterised in that the High Temperature Gas impingement baffle is porous plate.
4. preheater according to claim 2, it is characterised in that the High Temperature Gas impingement baffle includes the substrate of annular, and
The some disc extended internally along the inner edge of substrate, gas passage is formed between adjacent disc.
5. preheater according to claim 1, it is characterised in that the shell is horizontally disposed, the water inlet is located at outer
The lower section of shell, the delivery port is located at the top of shell.
6. preheater according to claim 1, it is characterised in that the U-shaped heat exchanger tube is welded using tube sheet fillet welding mode
On tube sheet.
7. preheater according to claim 1, it is characterised in that the interconnecting part is by tube bank sleeve towards one end of tube sheet
Side wall on breach formed, or formed towards the through hole on the side wall of one end of tube sheet by tube bank sleeve.
8. a kind of chemical reaction equipment for exothermic reaction, it is characterised in that including the height described in claim any one of 1-7
Pressure boiler water deflection bar type preheater, the chemical reaction equipment also includes reactor, and the cage connection of the reactor is to preheating
On the inlet sleeve of device, the reaction gas outlet of reactor is connected in the gas feed of preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710181669.9A CN106839823A (en) | 2017-03-24 | 2017-03-24 | A kind of HP boiler water deflection bar type preheater and chemical reaction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710181669.9A CN106839823A (en) | 2017-03-24 | 2017-03-24 | A kind of HP boiler water deflection bar type preheater and chemical reaction equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106839823A true CN106839823A (en) | 2017-06-13 |
Family
ID=59130437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710181669.9A Pending CN106839823A (en) | 2017-03-24 | 2017-03-24 | A kind of HP boiler water deflection bar type preheater and chemical reaction equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106839823A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405376A (en) * | 2021-07-05 | 2021-09-17 | 南京聚拓化工科技有限公司 | Full-counterflow heat recovery device |
| CN113418409A (en) * | 2021-07-05 | 2021-09-21 | 南京聚拓化工科技有限公司 | Full-countercurrent double-sleeve type heat recovery device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405376A (en) * | 2021-07-05 | 2021-09-17 | 南京聚拓化工科技有限公司 | Full-counterflow heat recovery device |
| CN113418409A (en) * | 2021-07-05 | 2021-09-21 | 南京聚拓化工科技有限公司 | Full-countercurrent double-sleeve type heat recovery device |
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Application publication date: 20170613 |
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| RJ01 | Rejection of invention patent application after publication |