CN204437706U - A kind of CNG two-stage coil exchanger - Google Patents
A kind of CNG two-stage coil exchanger Download PDFInfo
- Publication number
- CN204437706U CN204437706U CN201420814324.4U CN201420814324U CN204437706U CN 204437706 U CN204437706 U CN 204437706U CN 201420814324 U CN201420814324 U CN 201420814324U CN 204437706 U CN204437706 U CN 204437706U
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- China
- Prior art keywords
- heat exchanger
- pipe
- heat exchange
- cng
- coil pipe
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of CNG two-stage coil exchanger, comprise columniform housing, the inside of described housing is provided with the one-level heat exchanger coiled pipe of cylindrical spring structure and the secondary heat exchange coil pipe of cylindrical spring structure; Described one-level heat exchanger coiled pipe is enclosed in the periphery of described secondary heat exchange coil pipe, and the internal diameter of described one-level heat exchanger coiled pipe is greater than the external diameter of described secondary heat exchange coil pipe.Heat exchanger is provided with separate two-stage coil pipe type heat exchanging pipe; Combustion gas can carry out twice intensification heat exchange in a heat exchanger, takes full advantage of the inner space of heat exchanger, improves heat exchange efficiency, decrease power consumption.
Description
Technical field
The utility model relates to gas-fired equipment technical field, particularly relates to a kind of CNG two-stage coil exchanger.
Background technique
CNG and compressed natural gas (Compressed Natural Gas is called for short CNG) are rock gas pressurization and store in a reservoir with gaseous state.Compressed natural gas is except with except the rock gas in oil field and gas field, can manually manufacturing biogas (main component is methane).Compressed natural gas is identical with the constituent of pipe natural gas, and main component is methane (CH4).CNG can be used for making LNG (Liquefied NaturalGas, i.e. LNG Liquefied natural gas), and this is that the vehicle of fuel is called NGV (NaturalGasVehicle) with CNG.
CNG gas station can be divided into three types according to site and function, is divided into normal station, CNG mother station, CNG substation 3 type.Normal station is that gas is got from pipe network by gas station, directly to vehicle aerating.Normal station equipment has ground high-pressure gas cylinder group (200 ~ 250kg), control system, filling machine, compressor sled block usually, and in general website, rush-harvesting and rush-planting filling machine 2 ~ 4 is established at station.CNG mother station is except the function of normal station, and CNG mother station also has other function, and namely add gas column to substation trailer aerating by being located in station, CNG can be transported to substation by substation trailer, to substation air feed.A refueling mother station can fill fortune gas bottle truck more than ten day, for periphery 4-6 air entraining substations.CNG substation mainly build the large inner city periphery of vehicle flowrate in, is mainly applicable to tubine performance difficulty, and uneconomical or existing gas supply capacity can not meet the website with gas needs of gas station, adopts the form of building air entraining substation to implement refueling.The capital equipment of CNG gas station comprises: gas-drying apparatus, compressor bank, caisson, inflation two priority classes dish, add gas column, gas selling machine etc.
Need fuel gas pipeline to carry out heat exchange intensification before gas pressure-reducing in heat exchanger, in order to ensure temperature rise effect, the volume of heat exchanger is larger often, heat transfer effect is better, this is because the volume of heat exchanger increases, just more fuel gas pipeline can be held therein, to increase heat-exchange time.Have a lot about the design of heat exchanging pipe in prior art, such as pipeline detours the inwall of housing, the S-type distribution of pipeline, pipeline in the shape of a spiral etc., and its deficiency is the inner space that all can not utilize heat exchanger fully, carries out efficient heat exchange.
Model utility content
The purpose of this utility model is the technological deficiency for existing in prior art, and provides a kind of CNG two-stage coil exchanger that can carry out high efficient heat exchanging.
The technological scheme adopted for realizing the purpose of this utility model is: a kind of CNG two-stage coil exchanger, it is characterized in that: comprise columniform housing, the inside of described housing is provided with the one-level heat exchanger coiled pipe of cylindrical spring structure and the secondary heat exchange coil pipe of cylindrical spring structure; Described one-level heat exchanger coiled pipe is enclosed in the periphery of described secondary heat exchange coil pipe, and the internal diameter of described one-level heat exchanger coiled pipe is greater than the external diameter of described secondary heat exchange coil pipe.
Preferably, the inwall of described one-level heat exchanger coiled pipe next-door neighbour housing, to increase the length of heat exchanging pipe, improving heat exchanging efficiency.
Further, described electric heater is arranged on the axial location of described secondary heat exchange coil pipe, and the heat of electric heater distributes to surrounding, can heat up to the waters of coil pipe periphery fast.
The beneficial effects of the utility model are: heat exchanger is provided with separate two-stage coil pipe type heat exchanging pipe; Combustion gas can carry out twice intensification heat exchange in a heat exchanger, takes full advantage of the inner space of heat exchanger, improves heat exchange efficiency, decrease power consumption.
Accompanying drawing explanation
Figure 1 shows that the external structure schematic diagram of heat exchanger shell;
Figure 2 shows that the internal duct connection diagram of heat exchanger shell;
Figure 3 shows that the structural representation of one-level heat exchanger coiled pipe;
Figure 4 shows that the structural representation of secondary heat exchange coil pipe.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment:
Be illustrated in figure 1 a kind of CNG two-stage coil exchanger, it is characterized in that: comprise columniform housing 1, described housing 1 is provided with water inlet 2 and water outlet 3, the inside of housing 1 is provided with at least one electric heater 4; The side of described housing 1 is provided with the second entrance A and the first entrance B, and the opposite side of housing 1 is provided with the first outlet C and second outlet D.
As shown in Figure 2, the inside of described housing 1 is provided with the one-level heat exchanger coiled pipe 5 (as shown in Figure 3) of cylindrical spring structure and the secondary heat exchange coil pipe 6 (as shown in Figure 4) of cylindrical spring structure; The A mouth of pipe and the D mouth of pipe of one-level heat exchanger coiled pipe 5 are connected the second entrance A and second outlet D respectively; The B mouth of pipe and the C mouth of pipe of secondary heat exchange coil pipe 6 are connected the first entrance B and first outlet C respectively.Like this, separate two-stage coil pipe type heat exchanging pipe enables combustion gas in housing 1, carry out twice intensification heat exchange, takes full advantage of the inner space of heat exchanger, improves heat exchange efficiency, decrease power consumption.
Described one-level heat exchanger coiled pipe 5 is enclosed in the periphery of described secondary heat exchange coil pipe 6, and namely secondary heat exchange coil pipe 6 is positioned at the hollow region of described one-level heat exchanger coiled pipe 5, and this just requires, the internal diameter of described one-level heat exchanger coiled pipe 5 is greater than the external diameter of described secondary heat exchange coil pipe 6.
Preferably, described one-level heat exchanger coiled pipe 5 is close to the inwall of housing 1, to increase the length of heat exchanging pipe, improving heat exchanging efficiency.
Further, described electric heater is arranged on the axial location of described secondary heat exchange coil pipe 6, i.e. hollow region; This can make the heat utilization efficiency of electric heater 4 higher, this is because the heat of electric heater 4 distributes to surrounding, can heat up to the waters of coil pipe periphery fast.
Described second entrance A is connected preferably by exterior line with the first outlet C, and can exterior line be made full use of, the device such as mounted valve, pressure governor, filter, flowmeter, thermometer or pressure gauge on exterior line, to detect the indices of heat exchanger further.
The above is only preferred implementation of the present utility model; it should be noted that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. a CNG two-stage coil exchanger, is characterized in that: comprise columniform housing, and the inside of described housing is provided with the one-level heat exchanger coiled pipe of cylindrical spring structure and the secondary heat exchange coil pipe of cylindrical spring structure; Described one-level heat exchanger coiled pipe is enclosed in the periphery of described secondary heat exchange coil pipe, and the internal diameter of described one-level heat exchanger coiled pipe is greater than the external diameter of described secondary heat exchange coil pipe.
2. a kind of CNG two-stage coil exchanger according to claim 1, is characterized in that described electric heater is arranged on the axial location of described secondary heat exchange coil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420814324.4U CN204437706U (en) | 2014-12-19 | 2014-12-19 | A kind of CNG two-stage coil exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420814324.4U CN204437706U (en) | 2014-12-19 | 2014-12-19 | A kind of CNG two-stage coil exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204437706U true CN204437706U (en) | 2015-07-01 |
Family
ID=53605572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420814324.4U Expired - Fee Related CN204437706U (en) | 2014-12-19 | 2014-12-19 | A kind of CNG two-stage coil exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204437706U (en) |
-
2014
- 2014-12-19 CN CN201420814324.4U patent/CN204437706U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20161219 |