CN209605129U - A kind of double steam boilers - Google Patents
A kind of double steam boilers Download PDFInfo
- Publication number
- CN209605129U CN209605129U CN201822254599.8U CN201822254599U CN209605129U CN 209605129 U CN209605129 U CN 209605129U CN 201822254599 U CN201822254599 U CN 201822254599U CN 209605129 U CN209605129 U CN 209605129U
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- boiler
- water storage
- water
- storage box
- steam boilers
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 178
- 238000003860 storage Methods 0.000 claims abstract description 82
- 238000002485 combustion reaction Methods 0.000 claims abstract description 59
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000007667 floating Methods 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 13
- 239000000446 fuel Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000009841 combustion method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003020 moisturizing effect Effects 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005115 demineralization Methods 0.000 description 1
- 230000002328 demineralizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model discloses a kind of double steam boilers, including the first boiler, the second boiler, water storage box and burner, the intracorporal middle and lower part of first Boiler Furnace is equipped with combustion tube, and the bottom end port of the combustion tube connects the burner, and top port connects combustion chamber；The top of combustion chamber is provided with the heat supply pipeline stretched out outside first boiler furnace, the other end of the heat supply pipeline protrudes into second boiler and is connected with the heating coil in second boiler, and the other end of the heating coil stretches out outside second boiler furnace and is connected with air blower；The water storage box is connect by respective line with the water storage cavity in first boiler and the second boiler, and the water storage box is also connected with external water source.The utility model takes full advantage of the burner exhaust heat of the energy in the first boiler, improves boiler thermal efficiency, while greatly reducing the consumption of fuel in combustion chamber, reduces exhaust gas temperature, has energy-saving and environment-friendly outstanding feature.
Description
Technical field
The utility model relates to boiler manfacturing technical field, more particularly to a kind of double steam boilers.
Background technique
Boiler is a kind of energy conversion, is that one kind is added by fuel combustion to boiler input energy specifically
Water in hot pot, and its vaporization is made to be in the thermal energy conversion equipment of steam.Water is constantly released by furnace fuel combustion in boiler
The energy warms come, temperature increases and generates pressurized vapor, so that heat power is formed, as a kind of energy in industrial production and people
Have during the people's livelihood is living and is widely used.
Although steam boiler belongs to a kind of burning energy supplying system being widely used, current existing steam boiler
Have the defects that energy consumption is high, heat utilization rate is low.With the continuous progress of science and technology, people's quality of life is horizontal increasingly mentions
Height, also increasing to the demand of the energy, energy-saving and emission-reduction have become a long-range strategy of China's economy and society development
Policy, and in boiler manfacturing field, boiler energy-saving consumption-reducing technological is studied, and specific aim proposes Reducing Consumption Measure, is to improve energy benefit
With rate, the effective way of sustainable development is realized, there is important social effect.
Therefore, how to improve in the structure basis of current existing steam boiler makes it overcome drawbacks described above, is
The problem of those skilled in the art's urgent need to resolve.
Utility model content
In view of this, the present invention provides a kind of double steam boilers, and the boiler is with low energy consumption, heat utilization rate
High, a series of advantage such as operating cost is low.
To achieve the goals above, the utility model adopts the following technical solution:
A kind of double steam boilers, including steam boiler, water storage box and for the jet flames into the steam boiler
Burner, the steam boiler include the first boiler and the second boiler, and the intracorporal middle and lower part of the first Boiler Furnace is equipped with combustion
Pipe is burnt, the bottom end port of the combustion tube connects the burner, and the top port of the combustion tube connects combustion chamber, the combustion
The inner wall sandwiched area of the outer wall and first boiler furnace that burn room is water storage cavity one；
The top of combustion chamber is provided with the heat supply pipeline stretched out outside first boiler furnace, the heat supply pipeline
The other end protrudes into second boiler and is connected with the heating coil in second boiler, the heating coil it is another
End is stretched out outside second boiler furnace and is connected with air blower, the outer wall of the heating coil and second Boiler Furnace
The inner wall sandwiched area of body is water storage cavity two；
The lower part of the water storage cavity one and the water storage cavity two is equipped with water inlet, and top is equipped with steam (vapor) outlet；It is described
Water storage box is connected by the first flow pipe with the water inlet of the water storage cavity one, and the second flow pipe and the water storage cavity two are passed through
Water inlet be connected；
The water storage box is connected with external water source.
By using above-mentioned technical proposal, existing steam boiler is provided only with a boiler body structure by the utility model
Technology improve, by being arranged double boiler system, the second boiler will the high temperature cigarette discharge originally in the first boiler
Gas is led through to continue to use by air blower, is carried out secondary thermal energy conversion and is generated pressurized vapor.It is designed in this way, not only makes full use of
The burner exhaust heat of the energy, improves boiler thermal efficiency, while greatly reducing the consumption of fuel in combustion chamber in first boiler,
Exhaust gas temperature is reduced, there is energy-saving and environment-friendly outstanding feature.
Preferably, the combustion tube is " z " type combustion tube.
The utility model has the advantages that combustion tube is for the flame of combustible gases in propagating burning device and is conducted into the combustion to the first boiler
It burns indoor.Combustion tube is designed as " z " type by the utility model, i.e. gas burning flame passes through " z " that two 90 ° of bend pipes are formed
Type pipeline, it is therefore an objective to gas burning flame be supplied by the way of eddy flow, enhance the efficiency of burning and heat transfer, it is ensured that
Flame can play the role of stablizing burning in the incoming flow of high speed.
Preferably, the combustion tube has multiple and multiple combustion tubes to constitute rectangular-ambulatory-plane structure, in the rectangular-ambulatory-plane structure
Center is also in addition arranged side by side, and there are two combustion tubes.
The utility model has the advantages that the above-mentioned layout of combustion tube enables the temperature field in the first boiler to be uniformly distributed, be conducive to burn
The heat exchange of pipe and water in water tank improves heating efficiency.
Preferably, the width ratio of the width of the combustion chamber and first boiler furnace is (3/4-4/5): 1.
The utility model has the advantages that combustion chamber is carried out Widening Design by the utility model, the steam for generating the water after being heated at high temperature
The space that can be occupied becomes smaller, and virtually substantially increases the pressure in closed water storage cavity one, gets higher the boiling point of water, and then makes to produce
Raw vapor (steam) temperature is got higher, and improves its utilization efficiency.
Preferably, the outer layer packet positioned at first boiler, the heat supply pipeline of the second boiler furnace exterior section is equipped with resistance to
High temperature dwell sheath.
The utility model has the advantages that high temperature resistant protective case can reduce heat dissipation of heat supply pipeline during conveying heat, the energy is avoided
Waste.
Preferably, first boiler, the second boiler, water storage box are arranged side by side, and the peak level of the water storage box is not high
In first boiler, the highest standard water level of the second boiler, lowest water level is most not less than first boiler, the second boiler
Substandard water level.
The utility model has the advantages that water storage box is connected with water storage cavity one, water storage cavity two respectively by the first flow pipe, the second flow pipe
Logical, therefore, the height of water level in water storage box is water storage cavity one, the height of water level in water storage cavity two, therefore the highest water of water storage box
Not above the first boiler, the highest standard water level of the second boiler, lowest water level cannot be below the first boiler, the second boiler for position
Minimum standard water level, the case where otherwise will appear the first boiler, the second boiler spill-over or dry combustion method, influence the first boiler and second
The normal operation of boiler.
Preferably, floating ball is equipped in the water storage box, the water storage box water inlet is equipped with ball-cock assembly, and the floating ball passes through
Link mechanism is connected with the ball-cock assembly.
The utility model has the advantages that ball-cock assembly be used to ensure water level in water storage box within normal range (NR), the utility model by
Ball-cock assembly is arranged in the water inlet of water storage box, and ball-cock assembly connects floating ball by link mechanism to control the water level of water storage box, works as storage
When water level in water tank drops to the extreme lower position of setting, floating ball is reduced with water level, is driven by the link mechanism of fixed floating ball floating
The intracorporal piston of ball valve pulls outward, and makes to generate vacancy between valve body and piston, tap water can be made to enter water storage box；Work as water storage
When case water level reaches the height and position of setting, floating ball with water level rise caused by power by connecting rod the intracorporal piston of valve toward valve
It pushes away in vivo, the vacancy between valve body and piston is made to disappear, valve will be closed and stop supplying water.
Preferably, water level sensor, the water level are additionally provided with below the low water level that the water storage box inner float ball is controlled
Sensor and the burner, the air blast mechatronics.
The utility model has the advantages that water level sensor is arranged in the lower section for the low water level that the utility model is controlled in floating ball, be in order into
Row low-water alarm, it is ensured that the safe operation of boiler.Water level sensor and burner, air blast mechatronics, when in water storage box
When preset down to the water level sensor water level of water level (such as external water source supply water interrupt, ball-cock assembly damage situations such as), water level
Sensor can transmit signal in time makes burner and air blower terminate operation, stops boiler combustion, it is ensured that safety.
Preferably, double steam boilers further include control device, the control device and the burner, the air blast
Machine, water level sensor electrical connection.
The utility model has the advantages that installation control device can make the utility model realize automation control, security risk is not only eliminated,
Manpower and financial cost is greatly reduced simultaneously.
Preferably, soft brush treatment device is provided between the water storage box and external water source.
The utility model has the advantages that carrying out water demineralization processing to boiler water by soft brush treatment device, boiler of feeding is used, Ke Yiti
Service life, energy utilization rate and the reliability of boiler operatiopn of high boiler.
Preferably, the fuel source of the combustion chamber includes combustion gas, fuel oil, fire coal etc..
It can be seen via above technical scheme that compared with prior art, the utility model, which discloses, provides a kind of double steam
Boiler, it has the advantage that:
1. the quantity of boiler in the prior art is increased to two by one by the utility model, make to be directly discharged to originally big
The high-temperature flue gas of gas can continue to exchange heat with water therein in increased boiler, generate pressurized vapor, be finally exhausted to
The flue gas of atmosphere can be down to 70 DEG C or so, and the heat of fuel combustion generation is utilized to the greatest extent, improves using energy source
Rate, while reducing equipment operating cost.
2. the utility model by improving to the combustion tube in the first boiler, enhances the efficiency of burning and heat transfer,
Ensure that flame can play the role of stablizing burning in the incoming flow of high speed.
3. the utility model by carrying out Widening Design to combustion chamber, gets higher the vapor (steam) temperature generated in the first boiler,
Improve the utilization efficiency of steam.
4. the utility model controls the water level of water storage box by the way that ball-cock assembly is arranged in water storage box, and then controls first pot
The water of furnace and the second boiler inner storing water chamber, it is ensured that the first boiler, the second boiler work well；Meanwhile the utility model is also
By the way that water level sensor is further arranged in water storage box, low-water alarm is carried out, to control burner in time, air blower stops
It only works, prevents dry combustion method, it is ensured that the safe operation of boiler.
5. the utility model controls the opening and closing of burner, air blower by control device according to the signal of water level sensor,
The automatic running of double steam boilers is realized, safety coefficient is high, and easy to operate, process is participated in without artificial, the degree of automation
Height, high production efficiency.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 attached drawing provides the positive structure schematic of double steam boilers for the utility model.
Fig. 2 attached drawing is the side structure schematic diagram on the direction Figure 1A provided by the utility model.
Wherein, in figure,
1- water storage box, 2- burner, the first boiler of 3-, the second boiler of 4-, 5- combustion tube, the combustion chamber 6-, 7- water storage cavity
One, 8- heat supply pipeline, 9- heating coil, 10- air blower, 11- water storage cavity two, 12- water inlet, 13- steam (vapor) outlet, 14- first
Flow pipe, the second flow pipe of 15-, 16- high temperature resistant protective case, 17- floating ball, 18- ball-cock assembly, 19- water level sensor, 20- water storage
Case water inlet.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figs. 1-2, the utility model embodiment discloses a kind of double steam boilers, including steam boiler, water storage box 1
And the burner 2 for the jet flames into steam boiler, specifically,
Steam boiler includes the first boiler 3 and the second boiler 4, and the intracorporal middle and lower part of 3 furnace of the first boiler is equipped with combustion tube
5, the bottom end port of combustion tube 5 connects burner 2, and top port connects combustion chamber 6, the outer wall of combustion chamber 6 and the first boiler 3
The inner wall sandwiched area of furnace body is water storage cavity 1；
Be provided with to stretch out at the top of combustion chamber 6 and state heat supply pipeline 8 outside 3 furnace body of the first boiler, heat supply pipeline 8 it is another
End is protruded into the second boiler 4 and is connected with the heating coil 9 in the second boiler 4, and the other end of heating coil 9 stretches out second
It is connected outside 4 furnace body of boiler and with air blower 10, the inner wall sandwiched area of 4 furnace body of the outer wall of heating coil 9 and the second boiler
For water storage cavity 2 11；
The lower part of water storage cavity 1 and water storage cavity 2 11 is equipped with water inlet 12, and top is equipped with steam (vapor) outlet 13, water storage
Case 1 is connected by the first flow pipe 14 with the water inlet of water storage cavity 1, and water storage box 1 passes through the second flow pipe 15 and water storage cavity
2 11 water inlet is connected；
Water storage box 1 is connected by water storage box water inlet 20 with external water source.
In order to advanced optimize technical solution, the selection of combustion tube 5 in the utility model uses " z " type combustion tube.
In order to advanced optimize technical solution, above-mentioned combustion tube 5 is equipped with multiple and multiple burnings in 3 furnace body of the first boiler
Pipe constitutes rectangular-ambulatory-plane structure, is also in addition arranged side by side there are two combustion tube 5 at the center of rectangular-ambulatory-plane structure.
In order to advanced optimize technical solution, the width ratio of 3 furnace body of the width of combustion chamber 6 and the first boiler is (3/4-4/
5): 1.
In order to advanced optimize technical solution, positioned at the first boiler 3, the heat supply pipeline 8 of 4 furnace body exterior section of the second boiler
Outer layer packet be equipped with high temperature resistant protective case 16.
In order to advanced optimize technical solution, the first boiler 3, the second boiler 4, water storage box 1 are arranged side by side, water storage box 1
Peak level is not less than the first boiler 3, second not higher than the first boiler 3, the highest standard water level of the second boiler 4, lowest water level
The minimum standard water level of boiler 4
In order to advanced optimize technical solution, it is equipped with floating ball 17 in water storage box 1, is equipped with ball-cock assembly at water storage box water inlet 20
18, floating ball 17 is connected by link mechanism with ball-cock assembly 18.
In order to advanced optimize technical solution, water level is additionally provided with below the low water level that 1 inner float ball 17 of water storage box is controlled
Sensor 19, water level sensor 19 are electrically connected with burner 2, air blower 10.
In order to advanced optimize technical solution, double steam boilers may also include control device, control device and burner 2,
Air blower 10, water level sensor 19 are electrically connected, and realize being automatically brought into operation for the utility model.
In order to advanced optimize technical solution, soft brush treatment device is also provided between water storage box 1 and external water source.
The specific work process of the utility model is；
Water storage box 1 receives the water supply from external water source, and passes through the first flow pipe 14, the second flow pipe 15 to first
Automatic water supplement in boiler 3, the water storage cavity 1 of the second boiler 4, water storage cavity 2 11；To water storage box 1, the first boiler 3, the second boiler 4
After whole moisturizings, control device control starting burner 2 and air blower 10, powerful active force of the flame against air blower 10
It is entered in combustion chamber 6 by combustion tube 5, then enters heat supply pipeline 8 from combustion chamber 6, heat is finally sent into the second boiler 4
In interior heating coil 9, combustion tube 5, combustion chamber 6, heating coil 9 realize the water in boiler by carrying out heat exchange with water
Become the thermal energy conversion process of vapor；The vapor generated in first boiler 3, the second boiler 4 passes through respective steam (vapor) outlet
13 connection vapor services, for being supplied to outside；
In the process, the first boiler 3, the water level in the second boiler 4 can constantly be reduced because of the evaporation of water, water storage box 1
Interior water will carry out endlessly moisturizing by the first flow pipe 14, the second flow pipe 15, when the water level drop in water storage box 1
To after certain position, the ball-cock assembly 18 of water inlet is automatically turned on, and is entered the external water source such as tap water in water storage box 1 and is carried out
Moisturizing, it is ensured that the water level in the first boiler 3, the second boiler 4 is constantly in reasonable range.
Occur interrupting situation when external water source supplies, and the water level in water storage box 1 has been lowered to and not can guarantee the first boiler
3, when the normal work of the second boiler 4, the water level sensor 19 in water storage box 1 can send a signal to control device in time, control
Situations such as device will stop the operation of burner 2 and air blower 10 in time, prevent dry combustion method, damage equipment, it is ensured that boiler
The safe operation of whole system.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (10)
1. a kind of double steam boilers, including steam boiler, water storage box and combustion for from the jet flames to the steam boiler
Burner, which is characterized in that the steam boiler includes the first boiler and the second boiler, the intracorporal middle and lower part of the first Boiler Furnace
Combustion tube is installed, the bottom end port of the combustion tube connects the burner, and the top port of the combustion tube connects burning
The inner wall sandwiched area of room, the outer wall of the combustion chamber and first boiler furnace is water storage cavity one；
The top of combustion chamber is provided with the heat supply pipeline stretched out outside first boiler furnace, the heat supply pipeline it is another
End is protruded into second boiler and is connected with the heating coil in second boiler, and the other end of the heating coil is stretched
It is connected outside second boiler furnace and with air blower out, the outer wall of the heating coil and second boiler furnace
Inner wall sandwiched area is water storage cavity two；
The lower part of the water storage cavity one and the water storage cavity two is equipped with water inlet, and top is equipped with steam (vapor) outlet；The water storage
Case is connected by the first flow pipe with the water inlet of the water storage cavity one, and entering for the second flow pipe and the water storage cavity two is passed through
The mouth of a river is connected；
The water storage box is connected with external water source.
2. a kind of double steam boilers according to claim 1, it is characterised in that: the combustion tube is " z " type combustion tube.
3. a kind of double steam boilers according to claim 1 or 2, it is characterised in that: the combustion tube has multiple and multiple
Combustion tube constitutes rectangular-ambulatory-plane structure, is also in addition arranged side by side there are two combustion tube at the center of the rectangular-ambulatory-plane structure.
4. a kind of double steam boilers according to claim 1, it is characterised in that: the width of the combustion chamber and described first
The width ratio of boiler furnace is (3/4-4/5): 1.
5. a kind of double steam boilers according to claim 1, it is characterised in that: be located at first boiler, the second boiler
The outer layer packet of the heat supply pipeline of furnace body exterior section is equipped with high temperature resistant protective case.
6. a kind of double steam boilers according to claim 1, it is characterised in that: first boiler, the second boiler, water storage
Case is arranged side by side, and the peak level of the water storage box is minimum not higher than first boiler, the highest standard water level of the second boiler
Water level is not less than first boiler, the minimum standard water level of the second boiler.
7. a kind of double steam boilers according to claim 1, it is characterised in that: floating ball is equipped in the water storage box, it is described
Water storage box water inlet is equipped with ball-cock assembly, and the floating ball is connected by link mechanism with the ball-cock assembly.
8. a kind of double steam boilers according to claim 7, it is characterised in that: the water storage box inner float ball is controlled low
Water level sensor, the water level sensor and the burner, the air blast mechatronics are additionally provided with below water level.
9. a kind of double steam boilers according to claim 8, it is characterised in that: double steam boilers further include control dress
It sets, the control device is electrically connected with the burner, the air blower, the water level sensor.
10. a kind of double steam boilers according to claim 1, it is characterised in that: between the water storage box and external water source
It is provided with soft brush treatment device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822254599.8U CN209605129U (en) | 2018-12-29 | 2018-12-29 | A kind of double steam boilers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822254599.8U CN209605129U (en) | 2018-12-29 | 2018-12-29 | A kind of double steam boilers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209605129U true CN209605129U (en) | 2019-11-08 |
Family
ID=68397835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822254599.8U Expired - Fee Related CN209605129U (en) | 2018-12-29 | 2018-12-29 | A kind of double steam boilers |
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| Country | Link |
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| CN (1) | CN209605129U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556102A (en) * | 2018-12-29 | 2019-04-02 | 吴荣彪 | A kind of double steam boilers |
-
2018
- 2018-12-29 CN CN201822254599.8U patent/CN209605129U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556102A (en) * | 2018-12-29 | 2019-04-02 | 吴荣彪 | A kind of double steam boilers |
| CN109556102B (en) * | 2018-12-29 | 2024-04-09 | 吴荣彪 | A double steam boiler |
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Granted publication date: 20191108 Termination date: 20211229 |