CN202420026U - Natural gas system and energy recovery device of natural gas system - Google Patents
Natural gas system and energy recovery device of natural gas system Download PDFInfo
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- CN202420026U CN202420026U CN 201120574702 CN201120574702U CN202420026U CN 202420026 U CN202420026 U CN 202420026U CN 201120574702 CN201120574702 CN 201120574702 CN 201120574702 U CN201120574702 U CN 201120574702U CN 202420026 U CN202420026 U CN 202420026U
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Abstract
The utility model discloses a natural gas system and an energy recovery device of the natural gas system. The natural gas system comprises a refrigerating fluid heat exchange device and a refrigeration house, wherein the refrigerating fluid heat exchange device is used for heating input natural gas, and then supplying the heated natural gas to a natural gas pipe network; and the refrigeration house is connected with the refrigerating fluid heat exchange device, and is used for storing refrigerants and transmitting the refrigerants to the refrigerating fluid heat exchange device through an inlet pipe. The refrigerating fluid heat exchange device is further connected with the refrigeration house through a backflow pipe; the refrigerants are transmitted back to the refrigeration house through the backflow pipe after being cooled by the refrigerating fluid heat exchange device. According to the utility model, a LNG (Liquefied Natural Gas) pipeline part and a CNG (Compressed Natural Gas) pipeline part are respectively provided with a refrigerating fluid heat exchange device, the cold energy generated in the heat exchange process of the natural gas can be transmitted to the refrigerants flowing in the refrigerating fluid heat exchange devices, and the refrigerated refrigerants can be transmitted back to the refrigeration house, so that the cold energy in the natural gas system can be efficiently utilized so as to save the energy.
Description
Technical field
The utility model relates to the natural gas system field, and especially, relates to a kind of natural gas system energy source recovery apparatus.
Background technology
Liquefied natural gas (Liquefied Natural Gas; Abbreviate LNG as) stand, compressed natural gas (Compressed Natural Gas; Abbreviate CNG as) stand and the L-CNG station is a system at present commonly used; As shown in Figure 1, the L-CNG station in the correlation technique adopts LNG and CNG parallel connection flow process to the pipe network air feed.The LNG tank car charges into LNG in LNG storage tank 1; Then in the LNG storage tank 1 to booster 2 input liquefied natural gas 9; After liquefied natural gas 9 was ended, LNG gasified in booster 2 and boosts, afterwards; The top of the natural gas flow 10 re-injection LNG storage tanks 1 after the gasification is as the LNG storage tank 1 outside pressure source that supplies.LNG storage tank 1 produces output liquefied natural gas 11 and is delivered to gasifier 3 under the effect of gaseous pressure, gasifier 3 produces output liquefied natural gas 12 and infeeds in the gas ductwork 4.On the other hand, the CNG tank car then directly infeeds combustion gas surge-chamber 6 with compressed natural gas 13, and producing output natural gas 14 after the step-down provides to NG-freezing liquid heat exchanger 5, is heated to produce output natural gas 15 about 10 ℃ and provide to gas ductwork 4.Provide gas fired-boiler combustion gas 18 to send into gas fired-boiler 7 from gas ductwork 4, the hot water 16 that burning generates gets into NG-freezing liquid heat exchanger 5, and cooled water 17 returns gas fired-boiler 7.
Can find out that though cold energy use has been adopted at present L-CNG station, concrete mode adopts circulatory mediator to get cold cooling storehouse, back or summer directly to the cold energy use mode of building cooling mostly.But present scheme energy recovery is not comprehensive with utilization, and a lot of energy all have been wasted.
Energy recovery to natural gas system in the correlation technique is not comprehensive with utilization, causes the problem of energy waste, does not propose effective solution at present as yet.
The utility model content
To the problem in the correlation technique, the utility model proposes a kind of natural gas system and natural gas system energy source recovery apparatus, can realize that effective cold energy reclaims and utilization at LNG pipeline portions and CNG pipeline portions, has saved the energy of natural gas system.
The technical scheme of the utility model is achieved in that
An aspect according to the utility model provides a kind of natural gas system.
Natural gas system according to the utility model comprises: the freezing liquid heat-exchanger rig be used for the natural gas of input is heated, and the natural gas after will heating provides to gas ductwork; Freezer is connected to the freezing liquid heat-exchanger rig, is used to store refrigerant, and refrigerant is inputed to the freezing liquid heat-exchanger rig through input pipe; Wherein, the freezing liquid heat-exchanger rig further is connected to freezer through return duct, by the freezing liquid heat-exchanger rig to refrigerant lower the temperature the back through return duct with the refrigerant loopback to freezer.
Wherein, The freezing liquid heat-exchanger rig comprises the first freezing liquid heat exchanger and the second freezing liquid heat exchanger, and freezer is shunted the back with refrigerant and provided to the first freezing liquid heat exchanger and the second freezing liquid heat exchanger through the first freezing liquid heat exchanger and second freezing liquid heat exchanger input pipe separately; Wherein, the first freezing liquid heat exchanger is used for gasifying from liquefied natural gas, and the natural gas that will obtain after will gasifying inputs to gas ductwork; The second freezing liquid heat exchanger is used to receive compressed natural gas, and the compressed natural gas that receives is heated up, and the natural gas that heats up is inputed to gas ductwork; And the first freezing liquid heat exchanger and the second freezing liquid heat exchanger all are connected to freezer through return duct, by the first freezing liquid heat exchanger and the second freezing liquid heat exchanger to refrigerant lower the temperature the back through return duct with the refrigerant loopback to freezer.
This system may further include: LNG tank is used to export liquefied natural gas; Booster is used for the liquefied natural gas of LNG tank storage is carried out supercharging; Wherein, LNG tank is used to export liquefied natural gas to the first freezing liquid heat exchanger through after the booster supercharging.
This system can further comprise: gasifier, and parallelly connected with the first freezing liquid heat exchanger, be used for occurring after handling, inputing to gas ductwork under the unusual situation from the liquefied natural gas after the supercharging of LNG tank in operating mode.
In addition, this system can further include: decompressor is used to utilize the expansion acting of the compressed natural gas of input to produce electric energy, and exports post-decompression natural gas to second freezing liquid heat exchanger.
This system can further include: low-temperature heat heat exchanger and the 3rd freezing liquid heat exchanger are connected between the second freezing liquid heat exchanger and the gas ductwork; Wherein, the low-temperature heat heat exchanger receives the natural gas after the intensification of second freezing liquid heat exchanger output, and the low-temperature heat heat exchanger has water-heating system, is used for the natural gas from the second freezing liquid heat exchanger is heated up; The 3rd freezing liquid heat exchanger is used to receive the natural gas after the intensification of low-temperature heat heat exchanger output; The 3rd freezing liquid heat exchanger is connected with boiler; Be used for the natural gas from the low-temperature heat heat exchanger being heated up, and the natural gas after will heating up inputs to gas ductwork through boiler water.
In addition, freezer further is provided with circulating pump, and circulating pump is used for the refrigerant of freezer is inputed to the freezing liquid heat-exchanger rig through input pipe;
Alternatively, refrigerant is the aqueous solution of ethylene glycol.
According to the utility model on the other hand, a kind of natural gas system energy source recovery apparatus is provided.Natural gas system energy source recovery apparatus according to the utility model comprises freezer, freezing liquid heat-exchanger rig, and freezer is connected with the freezing liquid heat-exchanger rig with return duct through input pipe; Freezer is used to store refrigerant; Through input pipe refrigerant is offered the freezing liquid heat-exchanger rig; And through return duct receive by the freezing liquid heat-exchanger rig return through the refrigerant after the cooling of freezing liquid heat-exchanger rig, wherein, the freezing liquid heat-exchanger rig is used for the natural gas of input is heated.
Wherein, The freezing liquid heat-exchanger rig comprises the first freezing liquid heat exchanger and the second freezing liquid heat exchanger, and freezer is shunted the back with the refrigerant of storage and provided to the first freezing liquid heat exchanger and the second freezing liquid heat exchanger through the first freezing liquid heat exchanger and second freezing liquid heat exchanger input pipe separately; Wherein, the first freezing liquid heat exchanger is used for gasifying from liquefied natural gas, and the natural gas that will obtain after will gasifying inputs to gas ductwork; The second freezing liquid heat exchanger is used to receive compressed natural gas, and the compressed natural gas that receives is heated up, and the natural gas that heats up is inputed to gas ductwork; And the first freezing liquid heat exchanger and the second freezing liquid the heat exchanger all return duct through separately are connected to freezer, by the first freezing liquid heat exchanger and the second freezing liquid heat exchanger to refrigerant lower the temperature the back through return duct with the refrigerant loopback to freezer.
This device can further comprise: decompressor is used to utilize the expansion acting of the compressed natural gas of input to produce electric energy, and exports post-decompression natural gas to second freezing liquid heat exchanger.
This device can further comprise: low-temperature heat heat exchanger and the 3rd freezing liquid heat exchanger are connected between the second freezing liquid heat exchanger and the gas ductwork; Wherein, the low-temperature heat heat exchanger receives the natural gas after the intensification of second freezing liquid heat exchanger output, and the low-temperature heat heat exchanger has water-heating system, is used for the natural gas from the second freezing liquid heat exchanger is heated up; The 3rd freezing liquid heat exchanger is used to receive the natural gas after the intensification of low-temperature heat heat exchanger output; The 3rd freezing liquid heat exchanger is connected with boiler; Be used for the natural gas from the low-temperature heat heat exchanger being heated up, and the natural gas after will heating up inputs to gas ductwork through boiler water.
In addition, freezer further is provided with circulating pump, and circulating pump is used for the refrigerant of freezer is inputed to the freezing liquid heat-exchanger rig through input pipe.
The utility model is through being provided with the freezing liquid heat exchanger at LNG pipeline portions and CNG pipeline portions; Can the cold energy that produce in the heat exchange gas process be passed to the refrigerant that flows in the freezing liquid heat exchanger; And the refrigerant loopback after will lowering the temperature is to freezer; Thereby effectively utilized the cold energy in the natural gas system, saved the energy.
Description of drawings
Fig. 1 is the block diagram of natural gas system in the correlation technique;
Fig. 2 is the block diagram according to the natural gas system of the utility model embodiment.
The specific embodiment
The cold energy at conventional liquefied natural gas (LNG), compressed natural gas (CNG) or L-CNG station can not be utilized effectively; And after obtaining satisfactory natural gas, directly get into pipe network NG; And in the processing procedure of natural gas; After LNG gasification back or the CNG decompression heater need be set all NG is heated to about 10 ℃, the employed fuel of heater generally is pipe gas, and the pressure of CNG can not be fully utilized yet simultaneously.Therefore, not only the cold energy of LNG and CNG is not utilized, and unemployed cold energy also needs can reach the standard that gets into pipe network by the additional NG that makes of the mode of burning NG; In addition, the pressure of CNG can also be wasted.
To the problems referred to above, the utility model provides solution, will describe the specific embodiment of the utility model below in detail.
According to the embodiment of the utility model, the energy source recovery apparatus of a kind of natural gas system and natural gas system is provided.
As shown in Figure 2, comprise according to the natural gas system of the utility model embodiment and energy source recovery apparatus wherein:
The first freezing liquid heat exchanger 28 be used for the liquefied natural gas 219 after the supercharging of input is gasified, and the natural gas 220 that will obtain after will gasifying inputs to gas ductwork 24;
The second freezing liquid heat exchanger 27 is used to receive compressed natural gas 224, and the compressed natural gas 224 that receives is heated up, and the natural gas 227 that heats up is inputed to gas ductwork 24;
Freezer 210 is used to store refrigerant;
Circulating pump 211 is connected to freezer 210, is used for that the refrigerant of freezer 210 is shunted the back and inputs to the first freezing liquid heat exchanger 28 and the second freezing liquid heat exchanger 27 through input pipe;
Wherein, the first freezing liquid heat exchanger 28 and the second freezing liquid heat exchanger 27 further are connected to freezer through return duct, pass through return duct with refrigerant loopback to freezer 210 in the back that lowered the temperature by the first freezing liquid heat exchanger 28 and 27 pairs of refrigerants of the second freezing liquid heat exchanger.
In addition, this device may further include:
In addition, this natural gas system energy source recovery apparatus may further include:
In addition, this natural gas system energy source recovery apparatus may further include:
Low-temperature heat heat exchanger 26 and the 3rd freezing liquid heat exchanger 25 are connected between the second freezing liquid heat exchanger 27 and the gas ductwork 24;
Wherein, the natural gas 225 after the intensification of the low-temperature heat heat exchanger 26 receptions second freezing liquid heat exchanger 27 outputs, low-temperature heat heat exchanger 26 has water-heating system, is used for the natural gas from the second freezing liquid heat exchanger 27 is heated up;
The 3rd freezing liquid heat exchanger 25 is used to receive the natural gas 226 after the intensification of low-temperature heat heat exchanger 26 outputs; The 3rd freezing liquid heat exchanger 25 is connected with boiler 213; Be used for heating up from the natural gas after the intensification of low-temperature heat heat exchanger 26 226 through 235 pairs of boiler waters; And the natural gas after will heating up 227 inputs to gas ductwork 24, also boiler water 236 returned to boiler 213.
Wherein, above-mentioned refrigerant can be the aqueous solution of ethylene glycol, and in addition, the utility model can adopt other refrigerants equally, and this paper enumerates no longer one by one.
In practical application; Can in LNG tank 21, charge into LNG 214 (1.5bar ,-162 ℃) by the LNG tank car, LNG tank 21 produces output liquefied natural gas 215 and in booster 22, charges into partial L NG then; After will exporting liquefied natural gas 215 and ending; LNG gasifies in booster 22 and boosts to 4bar, produces the top of exporting liquefied natural gas 216 and being recycled into LNG tank 21 then, as the LNG tank 21 outside pressure sources that supply.LNG tank 21 produces output liquefied natural gas 217 under the effect of gaseous pressure; Flow is 1500kg/h, is divided into two output liquefied natural gas 218 and liquefied natural gas 219, and shunting liquefied natural gas 218 can be for unavailable under the normal situation of operating mode; Only under fault or maintenance operating mode, use; Output liquefied natural gas 219 is fed through the first freezing liquid heat exchanger 28, and the NG 220 of gasification directly infeeds in the gas ductwork 24, and pressure is 4bar.
On the other hand; The CNG tank car then infeeds natural gas (CNG) 221, and flow is 7150kg/h, and temperature is 20 ℃; Pressure is 220bar; Get into combustion gas surge-chamber 29 and decompressor 212 respectively after being divided into two shunting CNG 222 and CNG 223, under the normal situation of operating mode, can not adopt combustion gas surge-chamber 29, be merely under fault or the maintenance operating mode and use; The CNG acting of in decompressor 212, expanding, the electric energy output 228 of sending 200kW, post-decompression NG 224 is 4bar; Temperature is-158 ℃; Get into the second freezing liquid heat exchanger 27, be warming up to-30 ℃, the second freezing liquid heat exchanger 27 produces output natural gas 225 and provides to low-temperature heat heat exchanger 26; After low-temperature heat heat exchanger 26 is warming up to-10 ℃; Generation output natural gas 226 is sent into the 3rd freezing liquid heat exchanger 25, the three freezing liquid heat exchangers 25 generation temperature and is reached the output natural gas 227 after 10 ℃, and provides to gas ductwork 24.
Alternatively, the refrigerant of from freezer 210, drawing is the aqueous solution of ethylene glycol, and flow is 100t/h; Temperature is-10 ℃; Through being split into two refrigerants streams 230 and 231 after 229 entering circulating pump 211 (freezing liquid circulating pump) pressurizations of refrigerant stream, get into the cold that the second freezing liquid heat exchanger 27 and the first freezing liquid heat exchanger 28 absorb CNG and LNG respectively, converging then is refrigerant stream 232; The refrigerant temperature of this moment is-14 ℃, returns freezer 210.The low-temperature water heating 233 that comes from the outside gets into low-temperature heat heat exchanger 26, and this hot water flow of this moment is 10t/h, and temperature is 40 ℃; Current 234 after the heat release return thermal source, and returning temperature is 25 ℃.The gas-flow 237 of from gas ductwork 24, drawing infeeds boiler 213, and the hot water 235 that burning generates gets into the 3rd freezing liquid heat exchanger 25, and cooled current 236 return boiler 213, and this part flow process can be configured to subsequent use.
Because system has increased by the first and second freezing liquid heat exchangers; Make the cold of LNG and CNG most of recyclable and be applied to freezer 210; Low-temperature heat heat exchanger 26 used heat capable of using that increase guarantee that combustion gas gets into the temperature of gas ductwork 24, and comprehensive several measures can be under the prerequisite of creating a large amount of cold energy; Significantly cut down annual gas consumption 18.4 ten thousand m3 of gas fired-boiler, bring the benefit of increasing income and economizing on spending significantly.
Can find out,,, adopt and install LNG-refrigerant heat exchanger and CNG-refrigerant heat exchanger respectively additional, realize the utilization of LNG and CNG cold energy, reduce the consumption that gas fired-boiler heats above-mentioned combustion gas to the defective that the prior art scheme exists by said system; NG-cryogenic freezing liquid heat exchanger also is set simultaneously makes full use of outside used heat, further reduce the gas consumption of gas fired-boiler; In addition, through decompressor is set, can realize further on the basis that the system of realization cold energy reclaims that the safety of pressure ability reclaims; Make the pressure of CNG can be reclaimed and produce considerable electric power; Also produced more cold simultaneously, this cold is applied to having created economic benefit in the freezer.
Wherein, only show a freezer 210 in the accompanying drawing, in practical application, can have a plurality of freezers to be respectively the first and second freezing liquid heat exchangers provides refrigerant.
Referring to the utility model natural gas system energy source recovery apparatus shown in Fig. 2; When be 1 standard atmospheric pressure, temperature with pressure for-162 ℃, flow be that the LNG of 15000kg/h is when being example; The cold that the first freezing liquid heat exchanger 28 produces is 336.4kW, and the cold that the second freezing liquid heat exchanger 27 produces is 214.3kW.When being that 220 standard atmospheric pressures, temperature are that 20 ℃, flow are the CNG of 10000Nm3/h when being example with pressure, the generated output of decompressor 212 is 538kW, and the cold that the second freezing liquid heat exchanger 27 produces is 823kW.
In sum, by means of the technique scheme of the utility model, through the freezing liquid heat exchanger being set at LNG pipeline portions and CNG pipeline portions; Can the cold energy that produce in the heat exchange gas process be passed in the freezing liquid heat exchanger refrigerant that flows, and the refrigerant loopback after will lowering the temperature is to freezer, thereby effectively utilized the cold energy in the natural gas system; Realize the outer confession of cold energy; Effectively save the energy, can significantly cut down the gas consumption that gas fired-boiler causes because of heating LNG and CNG, and; The pressure of CNG can reclaim generating by decompressor, has further saved the energy.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (13)
1. a natural gas system is characterized in that, comprising:
The freezing liquid heat-exchanger rig be used for the natural gas of input is heated, and the natural gas after will heating provides to gas ductwork;
Freezer is connected to said freezing liquid heat-exchanger rig, is used to store refrigerant, and refrigerant is inputed to said freezing liquid heat-exchanger rig through input pipe;
Wherein, said freezing liquid heat-exchanger rig further is connected to said freezer through return duct, after by said freezing liquid heat-exchanger rig refrigerant being lowered the temperature, passes through return duct with refrigerant loopback to said freezer.
2. natural gas system according to claim 1; It is characterized in that; Said freezing liquid heat-exchanger rig comprises the first freezing liquid heat exchanger and the second freezing liquid heat exchanger, and said freezer is shunted the back with refrigerant and provided to said first freezing liquid heat exchanger and the said second freezing liquid heat exchanger through said first freezing liquid heat exchanger and said second freezing liquid heat exchanger input pipe separately;
Wherein, the said first freezing liquid heat exchanger is used for gasifying from liquefied natural gas, and the natural gas that will obtain after will gasifying inputs to gas ductwork;
The said second freezing liquid heat exchanger is used to receive compressed natural gas, and the compressed natural gas that receives is heated up, and the natural gas that heats up is inputed to gas ductwork;
And; Said first freezing liquid heat exchanger and the said second freezing liquid heat exchanger all are connected to said freezer through return duct, after by said first freezing liquid heat exchanger and the said second freezing liquid heat exchanger refrigerant being lowered the temperature, pass through return duct with refrigerant loopback to said freezer.
3. natural gas system according to claim 2 is characterized in that, further comprises:
LNG tank is used to export liquefied natural gas;
Booster is used for the liquefied natural gas of LNG tank storage is carried out supercharging;
Wherein, said LNG tank is used to export through the liquefied natural gas after the said booster supercharging to the said first freezing liquid heat exchanger.
4. natural gas system according to claim 2 is characterized in that, further comprises:
Gasifier, parallelly connected with the said first freezing liquid heat exchanger, be used for occurring after handling, inputing to said gas ductwork under the unusual situation from the liquefied natural gas after the supercharging of said LNG tank in operating mode.
5. natural gas system according to claim 2 is characterized in that, further comprises:
Decompressor is used to utilize the expansion acting of the said compressed natural gas of input to produce electric energy, and exports post-decompression natural gas to the said second freezing liquid heat exchanger.
6. natural gas system according to claim 2 is characterized in that, further comprises:
Low-temperature heat heat exchanger and the 3rd freezing liquid heat exchanger are connected between said second freezing liquid heat exchanger and the said gas ductwork;
Wherein, said low-temperature heat heat exchanger receives the natural gas after the intensification of said second freezing liquid heat exchanger output, and said low-temperature heat heat exchanger has water-heating system, is used for the natural gas from the said second freezing liquid heat exchanger is heated up;
Said the 3rd freezing liquid heat exchanger is used to receive the natural gas after the intensification of said low-temperature heat heat exchanger output; Said the 3rd freezing liquid heat exchanger is connected with boiler; Be used for the natural gas from said low-temperature heat heat exchanger being heated up, and the natural gas after will heating up inputs to said gas ductwork through boiler water.
7. natural gas system according to claim 1 is characterized in that said freezer further is provided with circulating pump, and said circulating pump is used for the refrigerant of said freezer is inputed to said freezing liquid heat-exchanger rig through input pipe.
8. according to each described natural gas system in the claim 1 to 7, it is characterized in that said refrigerant is the aqueous solution of ethylene glycol.
9. a natural gas system energy source recovery apparatus is characterized in that, comprises freezer, freezing liquid heat-exchanger rig, and said freezer is connected with said freezing liquid heat-exchanger rig with return duct through input pipe;
Said freezer is used to store refrigerant; Through input pipe refrigerant is offered said freezing liquid heat-exchanger rig; And receive the refrigerant after the said freezing liquid heat-exchanger rig cooling of the process of returning by said freezing liquid heat-exchanger rig through return duct; Wherein, said freezing liquid heat-exchanger rig is used for the natural gas of input is heated.
10. natural gas system energy source recovery apparatus according to claim 9; It is characterized in that; Said freezing liquid heat-exchanger rig comprises the first freezing liquid heat exchanger and the second freezing liquid heat exchanger, and said freezer is shunted the back with the refrigerant of storage and provided to said first freezing liquid heat exchanger and the said second freezing liquid heat exchanger through said first freezing liquid heat exchanger and said second freezing liquid heat exchanger input pipe separately;
Wherein, the said first freezing liquid heat exchanger is used for gasifying from liquefied natural gas, and the natural gas that will obtain after will gasifying inputs to gas ductwork;
The said second freezing liquid heat exchanger is used to receive compressed natural gas, and the compressed natural gas that receives is heated up, and the natural gas that heats up is inputed to gas ductwork;
And; Said first freezing liquid heat exchanger and the said second freezing liquid the heat exchanger all return duct through separately are connected to said freezer, by the said first freezing liquid heat exchanger and the said second freezing liquid heat exchanger to refrigerant lowering the temperature the back through return duct with refrigerant loopback to said freezer.
11. natural gas system energy source recovery apparatus according to claim 10 is characterized in that, further comprises:
Decompressor is used to utilize the expansion acting of the said compressed natural gas of input to produce electric energy, and exports post-decompression natural gas to the said second freezing liquid heat exchanger.
12. natural gas system energy source recovery apparatus according to claim 10 is characterized in that, further comprises:
Low-temperature heat heat exchanger and the 3rd freezing liquid heat exchanger are connected between said second freezing liquid heat exchanger and the said gas ductwork;
Wherein, said low-temperature heat heat exchanger receives the natural gas after the intensification of said second freezing liquid heat exchanger output, and said low-temperature heat heat exchanger has water-heating system, is used for the natural gas from the said second freezing liquid heat exchanger is heated up;
Said the 3rd freezing liquid heat exchanger is used to receive the natural gas after the intensification of said low-temperature heat heat exchanger output; Said the 3rd freezing liquid heat exchanger is connected with boiler; Be used for the natural gas from said low-temperature heat heat exchanger being heated up, and the natural gas after will heating up inputs to said gas ductwork through boiler water.
13. natural gas system energy source recovery apparatus according to claim 9 is characterized in that said freezer further is provided with circulating pump, said circulating pump is used for the refrigerant of said freezer is inputed to said freezing liquid heat-exchanger rig through input pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201120574702 CN202420026U (en) | 2011-12-31 | 2011-12-31 | Natural gas system and energy recovery device of natural gas system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201120574702 CN202420026U (en) | 2011-12-31 | 2011-12-31 | Natural gas system and energy recovery device of natural gas system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343882A (en) * | 2013-06-27 | 2013-10-09 | 常州大学 | Liquefied natural gas BOG recovery device and recovery method |
| CN114923126A (en) * | 2022-04-29 | 2022-08-19 | 烟台杰瑞石油装备技术有限公司 | Natural gas control system and control method thereof |
-
2011
- 2011-12-31 CN CN 201120574702 patent/CN202420026U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343882A (en) * | 2013-06-27 | 2013-10-09 | 常州大学 | Liquefied natural gas BOG recovery device and recovery method |
| CN103343882B (en) * | 2013-06-27 | 2016-05-04 | 常州大学 | A kind of liquefied natural gas BOG retracting device and recovery method |
| CN114923126A (en) * | 2022-04-29 | 2022-08-19 | 烟台杰瑞石油装备技术有限公司 | Natural gas control system and control method thereof |
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Owner name: XIN'AO (CHINA) GAS INVESTMENT CO., LTD. Free format text: FORMER OWNER: XINAO SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20141204 |
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Effective date of registration: 20141204 Address after: 100000 Xicheng District, Beijing, Jin Fang street, No. 26, the office of the Austrian Olympic Center C block 501-2 Patentee after: New Austrian (China) Gas Investment Co., Ltd. Address before: Langfang City, Hebei province Guangyang road 065001 North Zone Patentee before: ENN SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |