CN209085376U - One kind being used for two sections of dry coal dust gasification furnace low pressure heat exchangers - Google Patents
One kind being used for two sections of dry coal dust gasification furnace low pressure heat exchangers Download PDFInfo
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- CN209085376U CN209085376U CN201821814717.XU CN201821814717U CN209085376U CN 209085376 U CN209085376 U CN 209085376U CN 201821814717 U CN201821814717 U CN 201821814717U CN 209085376 U CN209085376 U CN 209085376U
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Abstract
The utility model discloses one kind to be used for two sections of dry coal dust gasification furnace low pressure heat exchangers, including shell and heat exchanging pipe, the top of shell is equipped with water inlet pipe, water inlet pipe insertion is set in shell, and it is connected to shell, the bottom of water inlet pipe is connected with comb, the side of comb is equipped with the spray head of several symmetric arrays, the adjacent side of water inlet pipe is equipped with steam (vapor) outlet, steam (vapor) outlet is connected to shell, heat exchanging pipe is arranged in the bottom of comb, and the end of heat exchanging pipe is respectively equipped with synthesis gas entrance and syngas outlet, the bottom of shell is equipped with symmetrical support leg, support leg is fixed with case weld.With raising boiler feed temperature, change boiler feedwater water intake mode, local overcooling is avoided to form ammonia salt crystallization, solves heat exchange blockage and ammonia salt corrodes the advantages of heat exchanger tube leads to heat exchanger tube leakage problem.
Description
Technical field
It is especially a kind of for two sections of dry coal dust gasification furnace low pressure heat exchange the utility model relates to technical field of heat exchangers
Device.
Background technique
Heat exchanger is the equipment that the partial heat of hot fluid is passed to cold fluid, also known as heat exchanger, and heat exchanger is being changed
It is occupied an important position in work, petroleum, power, food and other many industrial productions, heat exchanger can be used as in Chemical Manufacture
Heater, cooler, condenser, evaporator and reboiler etc., are widely used.In coal chemical technology, the need of Coal Gasification are carried out
Pulverized coal gasification furnace is wanted to be operated, heat exchanger is the essential part of gasification furnace.
However, the analysis found that, it is existing to be used for two sections of dry coal dust gasification furnace low pressure heat exchangers and have the following disadvantages；It closes
It is easy exchange heat pipe corrosion at the Cl ion carried in gas, causes middle and lower part pipe leakage serious, synthesis gas is leaked to steam side.
Utility model content
Therefore, in order to solve above-mentioned deficiency, the utility model provides a kind of for two sections of dry coal dust gasification furnace low pressure herein
Heat exchanger has and improves boiler feed temperature, changes boiler feedwater water intake mode, and local overcooling is avoided to form ammonia salt crystallization, solution
It has determined heat exchange blockage and ammonia salt corrosion heat exchanger tube the advantages of leading to heat exchanger tube leakage problem.
The utility model is realized in this way constructing a kind of for two sections of dry coal dust gasification furnace low pressure heat exchangers, including shell
Body and heat exchanging pipe, the top of shell are equipped with water inlet pipe, and water inlet pipe insertion is set in shell, and is connected to shell, water inlet pipe
Bottom be connected with comb, the side of comb is equipped with the spray head of several symmetric arrays, and the adjacent side of water inlet pipe is equipped with steam (vapor) outlet,
Steam (vapor) outlet is connected to shell, and heat exchanging pipe is arranged in the bottom of comb, and the end of heat exchanging pipe is respectively equipped with synthesis gas and enters
The bottom of mouth and syngas outlet, shell is equipped with symmetrical support leg, and support leg is fixed with case weld.
Further, in comb embedment shell below liquid level.By the comb and water inlet pipe of setting, by boiler feedwater from top
Portion's water inlet, and comb is embedded to liquid level in heat exchanger hereinafter, setting spray head on comb, add water supply by the blending of furnace water on top
Heat, because the water heating temperature at heat exchanging pipe center improves, density becomes smaller and rises, and water inlet is inhaled into heat exchange area lower part and continues to add
Heat, to form autoclave boiling design, the water because entering heat exchanging pipe has been heated to saturation temperature, has changed so as to avoid part
The temperature of heat pipe is too low, it is therefore prevented that salification corrosion in managing.
Further, the side of heat exchanging pipe offers symmetrical temperature measurement mouth.Pass through the temperature measurement mouth side of setting
Just application specific standard temperature real-time monitoring heat exchanging pipe temperature conditions is used.
Further, the bottom of heat exchanging pipe is equipped with bottom-heated pipe.Started by the heating tube of setting in the heat exchanger
Water supply can be heated to 200 degrees Celsius with middle pressure steam by initial stage, reduce preheating time, heating normally can be cut off in temperature afterwards, helps
In raising heat exchange efficiency.
The utility model provides one kind for two sections of dry coal dust gasification furnace low pressure heat exchangers, with existing use by improving herein
It is compared in two sections of dry coal dust gasification furnace low pressure heat exchangers, has the advantages that have and improve boiler feed temperature, change boiler and give
Water water intake mode avoids local overcooling from forming ammonia salt crystallization, and solving heat exchange blockage and ammonia salt corrosion heat exchanger tube causes to exchange heat
The advantages of the problem of pipe leaks, embodies are as follows:
Advantage 1: comb is embedded in shell below liquid level.By the comb and water inlet pipe of setting, by boiler feedwater from top
Water inlet, and comb is embedded to liquid level in heat exchanger hereinafter, setting spray head on comb, it blends water supply by furnace water on top and heats,
Because the water heating temperature at heat exchanging pipe center improves, density becomes smaller and rises, and water inlet is inhaled into heat exchange area lower part and continues to heat,
To form autoclave boiling design, the water because entering heat exchanging pipe has been heated to saturation temperature, so as to avoid Local Heat Transfer
The temperature of pipe is too low, it is therefore prevented that salification corrosion in managing.
Advantage 2: the bottom of heat exchanging pipe is equipped with bottom-heated pipe.By the heating tube of setting in the heat exchanger initial start stage
Water supply can be heated to 200 degrees Celsius with middle pressure steam, reduce preheating time, heating normally can be cut off in temperature afterwards, helps to mention
High heat exchange efficiency.
Detailed description of the invention
Fig. 1 is the utility model one kind for two sections of dry coal dust gasification furnace low pressure heat exchanger structural schematic diagrams；
Fig. 2 is a kind of sectional side elevation for two sections of dry coal dust gasification furnace low pressure heat exchangers of the utility model.
Serial number as shown in the figure: shell 1, heat exchanging pipe 2, steam (vapor) outlet 3, water inlet pipe 4, comb 5, spray head 6, temperature measurement mouth
7, support leg 8, bottom-heated pipe 9, synthesis gas entrance 10 and syngas outlet 11.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing 1- Fig. 2, to the skill in the utility model embodiment
Art scheme is clearly and completely described, it is clear that and the described embodiments are only a part of the embodiments of the utility model, and
The embodiment being not all of.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, fall within the protection scope of the utility model under the premise of labour；In addition, term " first ",
" second ", " third " " upper and lower, left and right " etc. are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Meanwhile in the description of the present invention, unless otherwise clearly defined and limited, term " connected ", " connection " should do broad sense
Understand, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be mechanical connection, it can also
To be to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For the ordinary skill people of this field
For member, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The utility model provides one kind for two sections of dry coal dust gasification furnace low pressure heat exchangers, such as Fig. 1-figure by improving herein
Shown in 2, it can be practiced as follows；Including shell 1 and heat exchanging pipe 2, the top of shell 1 is equipped with water inlet pipe 4, into
The insertion of water pipe 4 is set in shell 1, and is connected to shell 1, and the bottom of water inlet pipe 4 is connected with comb 5, the side installation of comb 5
There is the spray head 6 of several symmetric arrays, the adjacent side of water inlet pipe 4 is equipped with steam (vapor) outlet 3, and steam (vapor) outlet 3 is connected to shell 1, heat exchanger tube
Road 2 is arranged in the bottom of comb 5, and the end of heat exchanging pipe 2 is respectively equipped with synthesis gas entrance 10 and syngas outlet 11, shell
1 bottom is equipped with symmetrical support leg 8, and support leg 8 is welded and fixed with shell 1.
Comb 5 is embedded in shell 1 below liquid level.By the comb 5 and water inlet pipe 4 of setting, by boiler feedwater from top into
Water, and comb 5 is embedded to liquid level in heat exchanger hereinafter, setting spray head 6 on comb 5, it blends water supply by furnace water on top and heats,
Because the water heating temperature at 2 center of heat exchanging pipe improves, density becomes smaller and rises, and water inlet is inhaled into heat exchange area lower part and continues to add
Heat, to form autoclave boiling design, the water because entering heat exchanging pipe 2 has been heated to saturation temperature, so as to avoid part
The temperature of heat exchanger tube is too low, it is therefore prevented that salification corrosion in managing.
The side of heat exchanging pipe 2 offers symmetrical temperature measurement mouth 7.It is convenient to use by the temperature measurement mouth 7 of setting
2 temperature conditions of application specific standard temperature real-time monitoring heat exchanging pipe.
The bottom of heat exchanging pipe 2 is equipped with bottom-heated pipe 9.By the heating tube 9 of setting the heat exchanger initial start stage can
Water supply is heated to 200 degrees Celsius with middle pressure steam, reduces preheating time, heating normally can be cut off in temperature afterwards, helps to improve
Heat exchange efficiency.
This kind is used for the working principle of two sections of dry coal dust gasification furnace low pressure heat exchangers: the heat exchanger is arranged in dry method dust system
Between system and scrubbing tower process, synthesis gas is walked in heat exchanging pipe 2, a pot water, water inlet pipe 4 of the boiler feedwater from top are walked in shell 1
Water inlet, and comb 5 is embedded to liquid level in heat exchanger hereinafter, setting spray head 6 on comb 5, add water supply by the blending of furnace water on top
Heat, because the water heating temperature at 2 center of heat exchanging pipe improves, density becomes smaller and rises, and water inlet is inhaled into the continuation of heat exchange area lower part
Heating, to form autoclave boiling design, the water because entering heat exchanging pipe 2 has been heated to saturation temperature, so as to avoid office
The temperature of portion's heat exchanger tube is too low, it is therefore prevented that salification corrosion in managing, boiler feedwater is heated by synthesis gas, in the heat exchanger middle and upper part
It generates steam and leaves boiler from steam (vapor) outlet 3, recycled the heat of synthesis gas, the steam of generation send Power island to generate electricity.
In summary；It is described in the utility model to be used for two sections of dry coal dust gasification furnace low pressure heat exchangers, and it is currently used for two sections
Dry coal dust gasification furnace low pressure heat exchanger is compared, and is had and is improved boiler feed temperature, is changed boiler feedwater water intake mode, is avoided part
Supercooling forms ammonia salt crystallization, solves heat exchange blockage and ammonia salt corrodes the advantages of heat exchanger tube leads to heat exchanger tube leakage problem.
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 (4)
1. one kind is used for two sections of dry coal dust gasification furnace low pressure heat exchangers, including shell (1) and heat exchanging pipe (2), it is characterised in that:
The top of the shell (1) is equipped with water inlet pipe (4), and water inlet pipe (4) insertion is set in shell (1), and even with shell (1)
Logical, the bottom of the water inlet pipe (4) is connected with comb (5), and the side of the comb (5) is equipped with the spray head of several symmetric arrays
(6), the adjacent side of the water inlet pipe (4) is equipped with steam (vapor) outlet (3), and the steam (vapor) outlet (3) is connected to shell (1), the heat exchange
Pipeline (2) is arranged in the bottom of comb (5), and the end of the heat exchanging pipe (2) is respectively equipped with synthesis gas entrance (10) and closes
(11) are exported at gas, the bottom of the shell (1) is equipped with symmetrical support leg (8), and the support leg (8) and shell (1) are welded
It is fixed.
2. a kind of according to claim 1 be used for two sections of dry coal dust gasification furnace low pressure heat exchangers, it is characterised in that: the comb
(5) it is embedded to shell (1) interior liquid level or less.
3. a kind of according to claim 1 be used for two sections of dry coal dust gasification furnace low pressure heat exchangers, it is characterised in that: the heat exchange
The side of pipeline (2) offers symmetrical temperature measurement mouth (7).
4. a kind of according to claim 1 be used for two sections of dry coal dust gasification furnace low pressure heat exchangers, it is characterised in that: the heat exchange
The bottom of pipeline (2) is equipped with bottom-heated pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821814717.XU CN209085376U (en) | 2018-11-06 | 2018-11-06 | One kind being used for two sections of dry coal dust gasification furnace low pressure heat exchangers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821814717.XU CN209085376U (en) | 2018-11-06 | 2018-11-06 | One kind being used for two sections of dry coal dust gasification furnace low pressure heat exchangers |
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| Publication Number | Publication Date |
|---|---|
| CN209085376U true CN209085376U (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821814717.XU Active CN209085376U (en) | 2018-11-06 | 2018-11-06 | One kind being used for two sections of dry coal dust gasification furnace low pressure heat exchangers |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163580A (en) * | 2018-11-06 | 2019-01-08 | 华能（天津）煤气化发电有限公司 | One kind being used for two sections of dry coal dust gasification furnace low pressure heat exchangers |
-
2018
- 2018-11-06 CN CN201821814717.XU patent/CN209085376U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163580A (en) * | 2018-11-06 | 2019-01-08 | 华能（天津）煤气化发电有限公司 | One kind being used for two sections of dry coal dust gasification furnace low pressure heat exchangers |
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