CN209341227U - A kind of adjustable boiler blow-off heat recovery apparatus - Google Patents
A kind of adjustable boiler blow-off heat recovery apparatus Download PDFInfo
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- CN209341227U CN209341227U CN201920003353.5U CN201920003353U CN209341227U CN 209341227 U CN209341227 U CN 209341227U CN 201920003353 U CN201920003353 U CN 201920003353U CN 209341227 U CN209341227 U CN 209341227U
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- Prior art keywords
- pipe
- lateral
- adjustable
- welded
- heat recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model provides a kind of adjustable boiler blow-off heat recovery apparatus, including boiler body, fixing leg, left side fixed frame, right side fixed frame, lateral pedal, anti-skidding raised line, storage of waste water case, clear water heating duct structure, adjustable protective frame structure, waste gas purification filtering tube structure, aqueous, drainpipe, drain valve, profile barrier and lateral guardrail, the fixing leg are welded on the lower part four corners of boiler body；Bolt is mounted on the right side of the front of boiler body the left side fixed frame and right side fixed frame respectively.The utility model circulation pipe is welded on the outer lower portion of L-type pipe, is conducive to facilitate when in use and plays the role of heat effect to by the aqueous of circulation pipe, so as to play recycling using the heat in L-type pipe discharge flue gas；The setting of lateral filter screen and longitudinal filter screen, is conducive to facilitate when in use and plays catharsis to the flue gas of discharge.
Description
Technical field
The utility model belongs to heat recovery apparatus technical field more particularly to a kind of adjustable boiler blow-off recuperation of heat dress
It sets.
Background technique
Boiler is a kind of energy conversion, and the energy inputted to boiler has chemical energy, electric energy in fuel, boiler output
Steam, high-temperature water or organic heat carrier with certain thermal energy.The original meaning of pot refers to that the water container heated on fire, furnace refer to burning
The place of fuel, boiler include pot and furnace two large divisions.The hot water or steam generated in boiler can directly be industrial production and people
The people's livelihood is living to provide required thermal energy, mechanical energy can also be converted to by Steam Power Equipment, or again turn mechanical energy by generator
It is changed to electric energy.The boiler for providing hot water is known as hot-water boiler, is mainly used for living, also there is a small amount of application in industrial production.
Chinese Patent Application No. is 201720458624.7, entitled a kind of boiler blow-off recuperation of heat that utility model is created
The discharge pipe line of device, boiler is connected to cesspool, and heat exchange unit is disposed in the cesspool, and normal temperature air is single by heat exchange
The airflow pipeline and high temperature sewage of member are delivered in burner after carrying out heat exchange.
But there is also the heats generated when not having to blowdown to utilize for existing boiler blow-off heat recovery apparatus
Recycling does not have the problem of playing a warning role to staff to exhaust gas poor filtration effect and the waste water tank heating of discharge.
Therefore, a kind of adjustable boiler blow-off heat recovery apparatus is invented to be very necessary.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of adjustable boiler blow-off heat recovery apparatus, with
Solving existing boiler blow-off heat recovery apparatus, there is the heats generated when not having to blowdown to carry out using recycling, to discharge
Exhaust gas poor filtration effect and waste water tank heating do not have the problem of playing a warning role to staff.
A kind of adjustable boiler blow-off heat recovery apparatus, including boiler body, fixing leg, left side fixed frame, right side
Protective frame structure is adjusted in fixed frame, lateral pedal, anti-skidding raised line, storage of waste water case, clear water heating duct structure, and exhaust gas is net
Change filtering tube structure, aqueous, drainpipe, drain valve, profile barrier and lateral guardrail, the fixing leg are welded on boiler
The lower part four corners of ontology；The left side fixed frame and right side fixed frame respectively bolt be mounted on boiler body front it is right
Side；The lateral pedal from top to bottom successively transverse weld in the front of left side fixed frame and right side fixed frame；Described is anti-
Sliding raised line is welded on the top of lateral pedal；The storage of waste water case bolt is mounted on the lower right side of boiler body；It is described
Clear water heating duct structure be mounted on the right side of boiler body；The adjustable protective frame structure is mounted on storage of waste water case
Outer lower portion；The waste gas purification filtering tube structure is mounted on the upper right of storage of waste water case；The aqueous note
Enter in the inside of storage of waste water case；The drainpipe is plugged on the lower right side of storage of waste water case；The drain valve screw thread
It is connected to the outer upper middle position of drainpipe；The profile barrier bolt is mounted on the top of boiler body；Described
Lateral rail bolt is mounted on the top of profile barrier；The clear water heating duct structure includes L-type pipe, circulation pipe,
Water-supply-pipe, water inlet pipe, outlet pipe and water pipe mounting flange, the water-supply-pipe are welded on front side of the upper right quarter of circulation pipe；Institute
The water inlet pipe and outlet pipe stated are respectively welded at the front lower left side of storage of waste water case；The right end and circulation pipe of the water inlet pipe
It is flanked before and after lower left quarter logical；The left side of the outlet pipe right end and water-supply-pipe front is connected.
Preferably, the adjustable protective frame structure includes lateral fixed sleeving, adjustable inserting rod, and puller bolt is prevented
Close to guardrail and longitudinally mounted plate, the lateral fixed sleeving is respectively welded at the outer lower portion of storage of waste water case；Described
Adjustable inserting rod is plugged on the inner right side of lateral fixed sleeving；It is described anti-to be mounted on adjustable inserting rod close to guardrail screw
Right end；The longitudinally mounted plate is welded on anti-close to the top of guardrail.
Preferably, the waste gas purification filtering tube structure includes bottom fixing pipe, downside flange terminal pad, upside method
Blue terminal pad, L-type smoke exhaust pipe, lateral filter screen and longitudinal filter screen, the bottom fixing pipe are welded on storage of waste water case
Upper right；The downside flange terminal pad is welded on the upper end of bottom fixing pipe；The L-type smoke exhaust pipe is welded on upside
Flange terminal pad top；The lateral filter screen screw is mounted on the lower inside of L-type smoke exhaust pipe；Longitudinal filter screen
Screw is mounted on the inner right side of L-type smoke exhaust pipe.
Preferably, the circulation pipe is set as helical form, and the circulation pipe is welded under the outside of L-type pipe
Portion.
Preferably, the lateral filter screen and longitudinal filter screen are respectively adopted stainless with a thickness of three millimeters to five millimeters
Steel strainer, the lateral filter screen and longitudinal filter screen are respectively arranged with a pair.
Preferably, the right upper portion also screw of the longitudinally mounted plate is equipped with metal warning sign.
Preferably, the puller bolt is threaded in the junction on front side of lateral fixed sleeving and adjustable inserting rod.
Preferably, the water pipe mounting flange is respectively welded at the left side of water inlet pipe and outlet pipe.
Preferably, the upside flange terminal pad bolt is mounted on the top of downside flange terminal pad.
Preferably, the L-type pipe is welded at the right side outlet flue of boiler body, and is stored up in lower part through waste water
Case is deposited to be plugged in aqueous.
Preferably, the top of the longitudinally mounted plate is set as arc.
Compared with prior art, the utility model has the following beneficial effects:
1. in the utility model, the circulation pipe is set as helical form, the circulation pipe is welded on L-type pipe
Outer lower portion, be conducive to facilitate when in use and play heat effect to by the aqueous of circulation pipe, so as to be gone out using L-type
Heat in smoke pipe discharge flue gas plays the role of recycling.
2. in the utility model, the lateral filter screen and longitudinal filter screen are respectively adopted with a thickness of three millimeters to five
The stainless steel filtering net of millimeter, the lateral filter screen and longitudinal filter screen are respectively arranged with a pair, are conducive to side when in use
Just catharsis is played to the flue gas of discharge.
3. in the utility model, the right upper portion also screw of the longitudinally mounted plate is equipped with metal warning sign, favorably
In can be played a warning role when in use to staff.
4. in the utility model, the puller bolt is threaded on front side of lateral fixed sleeving and adjustable inserting rod
Junction, be conducive to facilitate when in use and play the role of holding out against to adjustable inserting rod, and facilitate tune after unscrewing puller bolt
Section is anti-close to the spacing between guardrail and storage of waste water case, causes so as to avoid user from accidentally touching the storage of waste water case
Scald.
5. in the utility model, the water pipe mounting flange is respectively welded at the left side of water inlet pipe and outlet pipe, have
Conducive to facilitating water inlet pipe and outlet pipe to connect with outer conduit when in use.
6. in the utility model, the upside flange terminal pad bolt is mounted on the top of downside flange terminal pad, have
Conducive to when by upside flange terminal pad, aqueous conveniently is added into storage of waste water case out of bottom fixing pipe.
7. in the utility model, the L-type pipe is welded at the right side outlet flue of boiler body, and is passed through in lower part
It wears storage of waste water case to be plugged in aqueous, is conducive to carry out the dust in smog using aqueous when flue gas is discharged
Filter.
8. in the utility model, the top of the longitudinally mounted plate is set as arc, be conducive to keep away when in use
Exempt from user and touch to cause to damage on the upside of longitudinally mounted plate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the clear water heating duct structure of the utility model.
Fig. 3 is the structural schematic diagram of the adjustable protective frame structure of the utility model.
Fig. 4 is the structural schematic diagram of the waste gas purification filtering tube structure of the utility model.
In figure:
1, boiler body；2, fixing leg；3, left side fixed frame；4, right side fixed frame；5, lateral pedal；6, anti-skidding convex
Item；7, storage of waste water case；8, clear water heating duct structure；81, L-type pipe；82, circulation pipe；83, water-supply-pipe；84, enter water
Pipe；85, outlet pipe；86, water pipe mounting flange；9, protective frame structure is adjusted；91, lateral fixed sleeving；92, it is adjusted and inserts
Bar；93, puller bolt；94, prevent close to guardrail；95, longitudinally mounted plate；951, metal warning sign；10, waste gas purification filtering tube
Structure；101, bottom fixing pipe；102, downside flange terminal pad；103, upside flange terminal pad；104, L-type smoke exhaust pipe；105,
Lateral filter screen；106, longitudinal filter screen；11, aqueous；12, drainpipe；13, drain valve；14, profile barrier；15, it laterally protects
Column.
Specific embodiment
The utility model is described further below in conjunction with attached drawing:
Embodiment:
As shown in Figure 1 and Figure 2
The utility model provides a kind of adjustable boiler blow-off heat recovery apparatus, including boiler body 1, fixing leg 2,
Left side fixed frame 3, right side fixed frame 4, lateral pedal 5, anti-skidding raised line 6, storage of waste water case 7, clear water heating duct structure 8 can
Adjust protective frame structure 9, waste gas purification filtering tube structure 10, aqueous 11, drainpipe 12, drain valve 13,14 He of profile barrier
Lateral guardrail 15, the fixing leg 2 are welded on the lower part four corners of boiler body 1；The left side fixed frame 3 and right side
Bolt is mounted on the right side of the front of boiler body 1 fixed frame 4 respectively；The lateral pedal 5 from top to bottom successively transverse weld
The front of fixed frame 3 and right side fixed frame 4 in left side；The anti-skidding raised line 6 is welded on the top of lateral pedal 5；Described
7 bolt of storage of waste water case is mounted on the lower right side of boiler body 1；The clear water heating duct structure 8 is mounted on boiler sheet
The right side of body 1；The adjustable protective frame structure 9 is mounted on the outer lower portion of storage of waste water case 7；The waste gas purification mistake
Filter catheter structure 10 is mounted on the upper right of storage of waste water case 7；The aqueous 11 is infused in the inside of storage of waste water case 7；
The drainpipe 12 is plugged on the lower right side of storage of waste water case 7；The drain valve 13 is threaded in drainpipe 12
Outer upper middle position；14 bolt of profile barrier is mounted on the top of boiler body 1；15 spiral shell of lateral guardrail
Bolt is mounted on the top of profile barrier 14；The clear water heating duct structure 8 includes L-type pipe 81, circulation pipe 82, water delivery
Pipe 83, water inlet pipe 84, outlet pipe 85 and water pipe mounting flange 86, the water-supply-pipe 83 are welded on the upper right quarter of circulation pipe 82
Front side；The water inlet pipe 84 and outlet pipe 85 is respectively welded at the front lower left side of storage of waste water case 7；The water inlet pipe 84
Right end and 82 lower left quarter of circulation pipe before and after flank it is logical；It is connect on the left of 85 right end of outlet pipe and 83 front of water-supply-pipe
It is logical；The circulation pipe 82 is set as helical form, and the circulation pipe 82 is welded on the outer lower portion of L-type pipe 81, makes
Used time conveniently plays heat effect to by the aqueous 11 of circulation pipe 82, so as to be discharged in flue gas using L-type pipe 81
Heat play the role of recycling, the water pipe mounting flange 86 is respectively welded at the left side of water inlet pipe 84 and outlet pipe 85,
Water inlet pipe 84 and outlet pipe 85 is facilitated to connect with outer conduit when in use, the L-type pipe 81 is welded on boiler body 1
Right side outlet flue at, and be plugged in aqueous 11 in lower part through storage of waste water case 7, aqueous can be utilized when flue gas is discharged
Dust in 11 pairs of smog is filtered.
As shown in attached drawing 1 and attached drawing 3, in above-described embodiment, specifically, the adjustable protective frame structure 9 includes cross
To fixed sleeving 91, adjustable inserting rod 92, puller bolt 93 prevents that, close to guardrail 94 and longitudinally mounted plate 95, the transverse direction is solid
Determine the outer lower portion that casing 91 is respectively welded at storage of waste water case 7；The adjustable inserting rod 92 is plugged on lateral fixed sleeving
91 inner right side；The anti-right end that adjustable inserting rod 92 is mounted on close to 94 screw of guardrail；The longitudinally mounted plate
95 be welded on it is anti-close to the top of guardrail 94；The right upper portion also screw of the longitudinally mounted plate 95 is equipped with metal warning sign
951, staff can be played a warning role when in use, the puller bolt 93 is threaded in lateral fixed sleeving
91 with the junction of the front side of adjustable inserting rod 92, facilitate play the role of holding out against to adjustable inserting rod 92 when in use, and unscrewing
Facilitate adjusting anti-close to the spacing between guardrail 94 and storage of waste water case 7 after puller bolt 93, so as to avoid user from missing
It touches the storage of waste water case 7 to cause to scald, the top of the longitudinally mounted plate 95 is set as arc, can keep away when in use
Exempt from user and touch the upside of longitudinally mounted plate 95 to cause to damage.
As shown in attached drawing 1 and attached drawing 4, in above-described embodiment, specifically, the waste gas purification filtering tube structure 10 is wrapped
Include bottom fixing pipe 101, downside flange terminal pad 102, upside flange terminal pad 103, L-type smoke exhaust pipe 104, lateral filter screen
105 are welded on the upper right of storage of waste water case 7 with longitudinal filter screen 106, the bottom fixing pipe 101；The downside
Flange terminal pad 102 is welded on the upper end of bottom fixing pipe 101；The L-type smoke exhaust pipe 104 is welded on upside flange terminal pad
103 tops；105 screw of lateral filter screen is mounted on the lower inside of L-type smoke exhaust pipe 104；Longitudinal filter screen
106 screws are mounted on the inner right side of L-type smoke exhaust pipe 104；The lateral filter screen 105 and longitudinal filter screen 106 are adopted respectively
With the stainless steel filtering net with a thickness of three millimeters to five millimeters, the lateral filter screen 105 and longitudinal filter screen 106 are respectively set
There is a pair, facilitates when in use and catharsis is played to the flue gas of discharge, 103 bolt of upside flange terminal pad is mounted on
The top of downside flange terminal pad 102, it is convenient to be stored up out of bottom fixing pipe 101 to waste water when by upside flange terminal pad 103
It deposits and adds aqueous 11 in case 7.
Working principle
During the work time, flue gas when use in boiler body 1 is discharged into useless the utility model out of L-type pipe 81
In water storage bin 7, while primary filtration is carried out using aqueous 11, then flue gas is by bottom fixing pipe 101 in L-type smoke exhaust pipe
Discharge in 104, while flue gas is filtered using lateral filter screen 105 and longitudinal filter screen 106, usually using anti-close
Guardrail 94, longitudinally mounted plate 95 and arc play protection warning function to staff, and flue gas can when by L-type pipe 81
Aqueous 11 in circulation pipe 82 is heated, is connected using the water pipe mounting flange 86 on water inlet pipe 84 with external water source
It connects, and 85 upside water pipe mounting flange 86 of outlet pipe is connect with external water delivery position, so as to entering circulation pipe
Aqueous 11 in 82 is heated, to play the role of blowdown recuperation of heat.
Using technical solution described in the utility model or those skilled in the art in technical solutions of the utility model
Under inspiration, similar technical solution is designed, and reaches above-mentioned technical effect, is the protection model for falling into the utility model
It encloses.
Claims (10)
1. a kind of adjustable boiler blow-off heat recovery apparatus, which is characterized in that adjustable boiler blow-off heat recovery apparatus,
Including boiler body (1), fixing leg (2), left side fixed frame (3), right side fixed frame (4), lateral pedal (5), anti-skidding raised line
(6), storage of waste water case (7), clear water heating duct structure (8) are adjusted protective frame structure (9), waste gas purification filtering tube knot
Structure (10), aqueous (11), drainpipe (12), drain valve (13), profile barrier (14) and lateral guardrail (15), the fixed branch
Foot (2) is welded on the lower part four corners of boiler body (1)；The left side fixed frame (3) and right side fixed frame (4) difference bolt
It is mounted on the right side of the front of boiler body (1)；The lateral pedal (5) from top to bottom successively transverse weld in left side fixed frame
(3) and the front of right side fixed frame (4)；The anti-skidding raised line (6) is welded on the top of lateral pedal (5)；The waste water
Storage bin (7) bolt is mounted on the lower right side of boiler body (1)；The clear water heating duct structure (8) is mounted on boiler
The right side of ontology (1)；The adjustable protective frame structure (9) is mounted on the outer lower portion of storage of waste water case (7)；Described is useless
Gas purification filtering guide-tube structure (10) is mounted on the upper right of storage of waste water case (7)；The aqueous (11) is infused in waste water
The inside of storage bin (7)；The drainpipe (12) is plugged on the lower right side of storage of waste water case (7)；The drain valve
(13) it is threaded in the outer upper middle position of drainpipe (12)；Described profile barrier (14) bolt is mounted on boiler sheet
The top of body (1)；Described lateral guardrail (15) bolt is mounted on the top of profile barrier (14)；The clear water heating duct
Structure (8) includes L-type pipe (81), and circulation pipe (82), water-supply-pipe (83), water inlet pipe (84), outlet pipe (85) and water pipe connect
Acting flange disk (86), the water-supply-pipe (83) are welded on front side of the upper right quarter of circulation pipe (82)；The water inlet pipe (84) and
Outlet pipe (85) is respectively welded at the front lower left side of storage of waste water case (7)；The right end and circulation pipe of the water inlet pipe (84)
(82) it is flanked before and after lower left quarter logical；The left side of outlet pipe (85) right end and water-supply-pipe (83) front is connected.
2. adjustable boiler blow-off heat recovery apparatus as described in claim 1, which is characterized in that the adjustable protection
Frame structure (9) includes lateral fixed sleeving (91), adjustable inserting rod (92), and puller bolt (93) is prevented close to guardrail (94) and indulged
To mounting plate (95), the lateral fixed sleeving (91) is respectively welded at the outer lower portion of storage of waste water case (7)；Described can
Adjust the inner right side that inserted link (92) are plugged on lateral fixed sleeving (91)；Anti- be mounted on close to guardrail (94) screw can
Adjust the right end of inserted link (92)；The longitudinally mounted plate (95) is welded on the anti-top close to guardrail (94).
3. adjustable boiler blow-off heat recovery apparatus as described in claim 1, which is characterized in that the waste gas purification mistake
Filter catheter structure (10) includes bottom fixing pipe (101), downside flange terminal pad (102), upside flange terminal pad (103), L-type
Smoke exhaust pipe (104), lateral filter screen (105) and longitudinal filter screen (106), the bottom fixing pipe (101) are welded on waste water
The upper right of storage bin (7)；The downside flange terminal pad (102) is welded on the upper end of bottom fixing pipe (101)；It is described
L-type smoke exhaust pipe (104) be welded on upside flange terminal pad (103) top；Described lateral filter screen (105) screw is mounted on
The lower inside of L-type smoke exhaust pipe (104)；Described longitudinal filter screen (106) screw is mounted on the inside of L-type smoke exhaust pipe (104)
Right side.
4. adjustable boiler blow-off heat recovery apparatus as described in claim 1, which is characterized in that the circulation pipe (82)
It is set as helical form, the circulation pipe (82) is welded on the outer lower portion of L-type pipe (81).
5. adjustable boiler blow-off heat recovery apparatus as claimed in claim 3, which is characterized in that the lateral filter screen
(105) and the stainless steel filtering net with a thickness of three millimeters to five millimeters, the lateral filtering is respectively adopted in longitudinal filter screen (106)
Net (105) and longitudinal filter screen (106) are respectively arranged with a pair.
6. adjustable boiler blow-off heat recovery apparatus as claimed in claim 2, which is characterized in that the longitudinally mounted plate
(95) right upper portion also screw is equipped with metal warning sign (951).
7. adjustable boiler blow-off heat recovery apparatus as claimed in claim 2, which is characterized in that the puller bolt
(93) it is threaded in the junction on front side of lateral fixed sleeving (91) and adjustable inserting rod (92).
8. adjustable boiler blow-off heat recovery apparatus as described in claim 1, which is characterized in that the water pipe connection method
Blue disk (86) is respectively welded at the left side of water inlet pipe (84) and outlet pipe (85).
9. adjustable boiler blow-off heat recovery apparatus as claimed in claim 3, which is characterized in that the upper side flange connects
Connect the top that disk (103) bolt is mounted on downside flange terminal pad (102).
10. adjustable boiler blow-off heat recovery apparatus as described in claim 1, which is characterized in that the L-type pipe
(81) it is welded at the right side outlet flue of boiler body (1), and is plugged on aqueous (11) through storage of waste water case (7) in lower part
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920003353.5U CN209341227U (en) | 2019-01-02 | 2019-01-02 | A kind of adjustable boiler blow-off heat recovery apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920003353.5U CN209341227U (en) | 2019-01-02 | 2019-01-02 | A kind of adjustable boiler blow-off heat recovery apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209341227U true CN209341227U (en) | 2019-09-03 |
Family
ID=67760740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920003353.5U Expired - Fee Related CN209341227U (en) | 2019-01-02 | 2019-01-02 | A kind of adjustable boiler blow-off heat recovery apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209341227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720813A (en) * | 2020-05-13 | 2020-09-29 | 辽宁科技大学 | Boiler blow-off water and sewage source heat pump energy recycling system |
-
2019
- 2019-01-02 CN CN201920003353.5U patent/CN209341227U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720813A (en) * | 2020-05-13 | 2020-09-29 | 辽宁科技大学 | Boiler blow-off water and sewage source heat pump energy recycling system |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190903 Termination date: 20210102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |