CN204477992U - A kind of reformed gas waste heat boiler - Google Patents
A kind of reformed gas waste heat boiler Download PDFInfo
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- CN204477992U CN204477992U CN201520044018.1U CN201520044018U CN204477992U CN 204477992 U CN204477992 U CN 204477992U CN 201520044018 U CN201520044018 U CN 201520044018U CN 204477992 U CN204477992 U CN 204477992U
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- tube
- heat boiler
- waste heat
- reformed gas
- central tube
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Abstract
The utility model provides a kind of reformed gas waste heat boiler, and described waste heat boiler includes two for regulating the central tube of heat exchange amount.Waste heat boiler is provided with two bobbin carriages, shell side housing is provided with between two described bobbin carriages, the side that each described bobbin carriage is connected with shell side housing is provided with tube sheet, two central tubes are provided with in described housing, described in every root, the peripheral disposition of central tube has heat exchanger tube, described central tube is all connected with two tube sheets with the two ends of described heat exchanger tube, described central tube end is through tube sheet, end is towards the sidewall upper shed of bobbin carriage shell, and independently control valve is housed, the valve rod of described control valve leans out bobbin carriage shell.The utility model load regulation range is larger, can effectively control reformed gas heat boiler outlet temperature and control valve shortens because of valve rod, and stroke shortens, not yielding.
Description
Technical field
The utility model relates to the reformed gas waste heat boiler in steam reforming hydrogen manufacturing device, belongs to hydrogen and synthesis gas produces relevant oil refining, chemical industry, coal chemical technology.
Background technology
In device for producing hydrogen, reformed gas waste heat boiler is very important equipment, raw material reacts in reburner, produce the reformed gas of 860 DEG C of high temperature, then enter reformed gas waste heat boiler, with boiler feedwater heat exchange, produce middle pressure steam, enter middle change reactor after the gas of pyrolytic conversion is simultaneously cooled to 330 DEG C, carry out subsequent reactions.
Because the temperature of reformed gas is higher, vapour, water side temperature are lower, and reformed gas will go to become reactor in downstream and continue reaction in waste heat boiler after heat exchange, therefore temperature controls extremely important.In addition, in operating process, reformed gas load can change, so require higher to reformed gas waste heat boiler adjusting function.
Chinese patent CN201401771Y (ZL200920064371.0), in the patent of its title " a kind of waste heat conversion boiler ", described " also has center by-pass pipe in the middle part of cylindrical shell of the present utility model; the exit of center by-pass pipe is also provided with adjustment valve head, according to the aperture of heat exchange adjustable valve head." this patent is provided with a center by-pass pipe, adjustable range is limited, and regulating valve stem is longer, is easily out of shape.This is the deficiencies in the prior art part.
Summary of the invention:
The technical problems to be solved in the utility model is to provide a kind of reformed gas waste heat boiler, and load regulation range is larger, can effectively control reformed gas heat boiler outlet temperature and new structural design makes regulating valve rod shorten, and stroke shortens, not yielding.
The utility model central tube adjustment heat exchange amount: the diameter manyfold larger than the heat exchanger tube diameter in waste heat boiler of central tube, central tube is about 5 ~ 10 with heat exchanger tube diameter ratio, the circumference of such central tube and the ratio of sectional area can be same compared with heat exchanger tube ratio much lower, so fluid flows through the heat exchange amount of central tube far below the heat exchange amount flowing through heat exchanger tube.Thus, adjustment heat exchange amount is achieved by adjustment central tube fluid volume.
Specifically, a kind of reformed gas waste heat boiler of the present utility model, comprise two bobbin carriages, shell side housing is provided with between two described bobbin carriages, the side that each described bobbin carriage is connected with shell side housing is provided with tube sheet, it is characterized in that: be provided with adjustment central tube in two, and in these two, adjustment central tube is arranged in waste heat boiler housing, its complementary space in housing arranges heat exchanger tube, and heat exchanger tube is all connected with two tube sheets with the both sides of adjustment central tube in two; Regulate in two with central tube ends through tube sheet, its end towards bobbin carriage shell sidewall locations opening and be provided with control valve, the valve rod of described control valve leans out bobbin carriage shell.Two control valves can independent operation.
As the further restriction to the technical program, between described regulating valve rod and bobbin carriage shell, sealing is set.Two control valves of interior adjustment central tube are arranged on two central tube lateral surfaces respectively, can regulate the bypass reformed gas flow in central tube outward, regulate reformed gas outlet temperature at waste heat boiler by the regulating valve throw of lever.
As the further restriction to the technical program, two described central tubes are arranged symmetrically in the central shaft both sides of described shell side housing.
As the further restriction to the technical program, central tube described in every root is the 1/3-1/4 of described shell side housing cross-sectional diameter apart from the distance of described shell side housing sidewall.
As the further restriction to the technical program, the position of the control valve of two central tubes is symmetrical.
As the further restriction to the technical program, bobbin carriage housing adopts cold wall to design, and inside is lined with insulating and wearing-resistant lining.
As the further restriction to the technical program, described central tube and described heat exchanger tube be arranged in parallel.
Compared with prior art, advantage of the present utility model and good effect are: the utility model adopts two central tubes to increase adjustable range, regulating measure is more flexible, thus waste heat boiler adjusting function is improved, and adjustable range improves about 7 ~ 8% compared with common waste heat boiler.The length that two central tubes can shorten regulating valve rod is set, the frequency broken down when can reduce control valve action.
The utility model is that the single centre pipe had at the waste heat boiler of prior art regulates on the basis of outlet temperature, increases and arranges central tube, obtain adjustable range larger, regulate advantage more flexibly, and shorten regulating valve stem size, reduce probability of failure.Prior art is all that the diameter by increasing central tube increases adjustable range, and compared with of the present utility model pair of central tube thinking, clearly valve wants large, and valve rod will be grown, and effect is not as the utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model preferred embodiment.
Fig. 2 is the cross section view of the utility model preferred embodiment.
In figure, 1, bobbin carriage, 2, shell side housing, 3, tube sheet, 4, central tube, 5, heat exchanger tube, 6, hot-fluid medium inlet, 7, hot-fluid media outlet, 8, cold flow medium inlet, 9, cold flow media outlet, 10, regulating valve rod, 11, control valve.
Detailed description of the invention:
Below in conjunction with embodiment, further illustrate the utility model.
See Fig. 1, Fig. 2, the utility model waste heat boiler is provided with two bobbin carriages 1, shell side housing 2 is provided with between two described bobbin carriages 1, the side that each described bobbin carriage 1 is connected with shell side housing 2 is provided with tube sheet 3, two central tubes 4 are provided with in described shell side housing 2, described in every root, the peripheral disposition of central tube 4 has heat exchanger tube 5, described central tube 4 and described heat exchanger tube 5 are all connected with two described bobbin carriages 1 by tube sheet 3, bobbin carriage described in one of them is provided with hot-fluid medium inlet 6, bobbin carriage described in another is provided with hot-fluid media outlet 7, described shell side housing 2 is provided with cold flow medium inlet 8 and cold flow media outlet 9.
Two described central tubes 4 are arranged symmetrically in the central shaft both sides of described shell side housing 2.
Central tube 4 described in every root is 1/4 of described shell side housing 2 cross-sectional diameter apart from the distance of described shell side housing 2 sidewall.The diameter of described central tube is 8 times of heat exchanger tube diameter.
Described central tube end outlet extends to outside tube sheet, and its end towards the sidewall upper shed of bobbin carriage 1 shell, and is provided with control valve 11, and the valve rod 10 of described control valve leans out bobbin carriage 1 shell; Between regulating valve rod 10 and bobbin carriage 1 shell, sealing is set.Two control valves 11 of central tube 4 are arranged on two central tube 4 lateral surfaces respectively, at waste heat boiler outward by the bypass reformed gas flow in adjustment regulating valve rod 10 stroke adjustment central tube, can regulate reformed gas outlet temperature.The length that 2 central tubes 4 can shorten regulating valve rod 10 is set, the frequency broken down when can reduce control valve 11 action.
The position of the control valve 11 of two central tubes 4 is symmetrical.
Bobbin carriage 1 housing adopts cold wall to design, and inside is lined with insulating and wearing-resistant lining.
Described central tube 4 and described heat exchanger tube 5 be arranged in parallel.
In device for producing hydrogen, hot-fluid medium is pyrolytic conversion gas, cold flow medium is boiler feedwater, hot-fluid medium enters bobbin carriage 1 from hot-fluid medium inlet 6, portion gas directly enters heat exchanger tube 5, with the boiler feedwater heat exchange of shell side housing 2 li, remaining gas directly enters central tube 4, substantially there is not heat exchange, the hot-fluid medium of heat exchanger tube 5 outlet cooling exports after uncooled hot-fluid medium mixes with central tube 4 sends reformed gas waste heat boiler, because two central tubes 4 are all furnished with control valve 11, mixing reformed gas temperature can be controlled by the aperture controlling to adjust valve 11, namely effectively reformed gas outlet temperature is controlled, utilize next step to react.
Certainly; above-mentioned explanation is not limitation of the utility model; the utility model is also not limited only to above-mentioned citing, the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also belongs to protection domain of the present utility model.
Claims (5)
1. a reformed gas waste heat boiler, comprise two bobbin carriages, shell side housing is provided with between two described bobbin carriages, the side that each described bobbin carriage is connected with shell side housing is provided with tube sheet, it is characterized in that: be provided with adjustment central tube in two, in these two, adjustment central tube is arranged in waste heat boiler housing, and its complementary space in housing arranges heat exchanger tube, and heat exchanger tube is all connected with two tube sheets with the both sides of adjustment central tube in two; Regulate in two with central tube ends through tube sheet, its end towards bobbin carriage shell sidewall locations opening and be provided with control valve, the valve rod of described control valve leans out bobbin carriage shell.
2. reformed gas waste heat boiler according to claim 1, is characterized in that: two described central tubes are arranged symmetrically in the central shaft both sides of described shell side housing.
3. reformed gas waste heat boiler according to claim 1, is characterized in that: central tube described in every root is the 1/3-1/4 of described shell side housing cross-sectional diameter apart from the distance of described shell side housing sidewall.
4. reformed gas waste heat boiler according to claim 1, is characterized in that: the position of the control valve of two described central tubes is symmetrical.
5. according to the reformed gas waste heat boiler one of Claims 1 to 4 Suo Shu, it is characterized in that: described central tube is about 5 ~ 10 with heat exchanger tube diameter ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520044018.1U CN204477992U (en) | 2015-01-22 | 2015-01-22 | A kind of reformed gas waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520044018.1U CN204477992U (en) | 2015-01-22 | 2015-01-22 | A kind of reformed gas waste heat boiler |
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| Publication Number | Publication Date |
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| CN204477992U true CN204477992U (en) | 2015-07-15 |
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| CN201520044018.1U Active CN204477992U (en) | 2015-01-22 | 2015-01-22 | A kind of reformed gas waste heat boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883370A (en) * | 2016-09-30 | 2018-04-06 | 中石化洛阳工程有限公司 | A kind of vertical steam superheater |
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2015
- 2015-01-22 CN CN201520044018.1U patent/CN204477992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883370A (en) * | 2016-09-30 | 2018-04-06 | 中石化洛阳工程有限公司 | A kind of vertical steam superheater |
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