CN213018881U - Intermediate medium gasifier system - Google Patents
Intermediate medium gasifier system Download PDFInfo
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- CN213018881U CN213018881U CN202021621291.3U CN202021621291U CN213018881U CN 213018881 U CN213018881 U CN 213018881U CN 202021621291 U CN202021621291 U CN 202021621291U CN 213018881 U CN213018881 U CN 213018881U
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Abstract
The embodiment of the utility model discloses middle medium vaporizer system, including middle medium vaporizer, liquid working medium vaporizer and thermoregulator, the three disposes the heat exchange tube respectively, and wherein liquid working medium vaporizer and middle medium vaporizer sharing shell side, thermoregulator set up a shell side alone, can simplify system's heat transfer structural design effectively.
Description
Technical Field
The embodiment of the utility model provides a relate to gaseous cryogenic equipment, especially relate to an intermediate medium vaporizer system.
Background
In the prior art, an LNG intermediate medium vaporizer for converting Liquefied Natural Gas (LNG) into gaseous Natural Gas (NG) exists, and specifically, as shown in fig. 1, the LNG intermediate medium vaporizer uses seawater as a heat source and propane as an intermediate medium, and performs three times of low-temperature heat exchange to convert natural gas from liquid to gaseous state and finally to a terminal user, and discharges the natural gas back to the sea for recycling after the heat exchange of the seawater. In recent market, intermediate medium gasifier systems of other liquid working mediums (such as nitrogen and the like) also appear, the basic principle of the intermediate medium gasifier system is the same as that of the LNG intermediate medium gasifier, all heat exchange pipes are in the same shell, correlation exists among the heat exchange pipes, the heat exchange area is difficult to calculate, the system structure is complex, and therefore optimization design needs to be carried out.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to solve the above-mentioned not enough of prior art, provide an intermediate medium vaporizer system of simplified structure.
In order to solve the technical problem, the embodiment of the utility model adopts the following technical scheme:
an intermediate medium gasifier system comprises an intermediate medium gasifier, a liquid working medium gasifier and a temperature regulator, wherein the liquid working medium gasifier, the intermediate medium gasifier and the temperature regulator are respectively provided with a heat exchange pipe, so that a heat source can release heat in the intermediate medium gasifier and the temperature regulator, an intermediate medium is gasified in the intermediate medium gasifier and liquefied in the liquid working medium gasifier, and a liquid working medium is gasified in the liquid working medium gasifier and heated in the temperature regulator to obtain target gas, the liquid working medium gasifier and the intermediate medium gasifier share one shell pass, and the temperature regulator is independently provided with one shell pass.
Preferably, the intermediate medium gasifier and the liquid working medium gasifier are provided with a shell pass for the flow of the intermediate medium, the intermediate medium gasifier is provided with a tube pass for the flow of the heat source, and the liquid working medium gasifier is provided with a tube pass for the flow of the liquid nitrogen.
Preferably, the intermediate medium gasifier system is provided with a piping system comprising: the first branch is used for allowing external liquid working media to enter a tube pass of the liquid working medium gasifier; a branch II is used for feeding the target gas after the liquid working medium is gasified in the liquid working medium device into the shell pass of the temperature regulator; a branch III for outputting the target gas after temperature adjustment; a heat supply source enters a tube pass of the temperature regulator; a heat supply source enters a tube pass of the intermediate medium gasifier; and a branch six for discharging the heat source after heat exchange.
Preferably, the piping system is provided with a plurality of control valves including: a second safety valve and a second ball valve are arranged on the first branch, and a third safety valve and a third ball valve are arranged on the third branch; branch four sets up stop valve one and ball valve five and ball valve six, and branch five sets up stop valve three and ball valve eight, and branch six sets up stop valve four, relief valve four and ball valve four.
Preferably, the piping system comprises: the liquid working medium gasifier is provided with an emptying pipeline for discharging the intermediate medium.
Preferably, the emptying pipeline is provided with a first safety valve and a first ball valve.
Preferably, the intermediate medium gasifier system is provided with an instrumentation system comprising: the liquid working medium gasifier is provided with a first thermometer and an analyzer, and the intermediate medium gasifier is provided with a second thermometer and a liquid level meter.
Preferably, a second stop valve is arranged on a liquid taking pipeline of the liquid level meter.
Preferably, the shell sides of the intermediate medium gasifier and the liquid working medium gasifier and the shell side of the temperature regulator are respectively provided with an insulating layer.
Preferably, the method is used for preparing nitrogen, wherein the liquid working medium is liquid nitrogen, the intermediate medium is propane, and the heat source is water.
Compared with the prior art, the embodiment of the utility model provides a be provided with middle medium vaporizer, liquid working medium vaporizer and thermoregulator, the three is provided with the heat exchange tube respectively, and wherein liquid working medium vaporizer, middle medium vaporizer sharing shell side, thermoregulator set up a shell side alone, can reduce the influence each other between the different heat exchange tubes of system like this, and heat transfer area calculates more simplyfy from this for system's structure is more simplified.
Drawings
FIG. 1 is a schematic diagram of a conventional LNG intermediate medium gasifier;
FIG. 2 is a schematic diagram of an intermediate media gasifier system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an intermediate gasifier system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an intermediate medium vaporizer according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. The various examples are provided by way of explanation of embodiments of the invention and are not limiting of the invention.
Referring to fig. 2, the embodiment of the present invention provides an intermediate medium vaporizer system including an intermediate medium vaporizer Tp, a liquid working medium vaporizer Tn, and a temperature regulator Th, which are respectively provided with heat exchange tubes, so that a heat source releases heat in the intermediate medium vaporizer and the temperature regulator, the intermediate medium is vaporized in the intermediate medium vaporizer and liquefied in the liquid working medium vaporizer, and the liquid working medium is vaporized in the liquid working medium vaporizer and heated in the temperature regulator to obtain a target gas.
In the embodiment of the utility model, the liquid working medium gasifier Tn and the intermediate medium gasifier Tp are both in one shell pass, the shell pass is closed, and the intermediate medium in the shell pass can generate a heat pipe effect; the temperature regulator Th is separately provided with a shell pass. In addition, the whole system is also provided with auxiliary equipment such as a pipeline, a valve, a pressure gauge, a liquid level meter, a safety valve, a probe and the like, and the auxiliary equipment is used for ensuring the stable operation of the system.
The embodiment of the utility model provides an in, the liquid working medium of intermediate medium vaporizer system is liquid nitrogen or liquefied natural gas (corresponding target gas is gaseous nitrogen gas or natural gas) etc. and the intermediate medium generally is propane, and the heat source mainly is water. Without loss of generality, the following description will be made in detail by taking nitrogen gas production as an example.
As shown in fig. 2, the intermediate medium vaporizer Tp and the liquid working medium vaporizer Tn are respectively provided with a shell pass through which the intermediate medium flows, the intermediate medium vaporizer Tp is provided with a tube pass through which the heat source flows, and the liquid working medium vaporizer Tn is provided with a tube pass through which the liquid nitrogen flows. That is, propane travels through both the shell side in the intermediate medium vaporizer Tp and the liquid working medium vaporizer Tn, water travels through the tube side in the intermediate medium vaporizer T, and liquid nitrogen travels through the tube side in the liquid working medium vaporizer Tn.
Thus, the liquid nitrogen and propane are subjected to heat exchange gasification in the liquid working medium gasifier Tn to obtain nitrogen, and then the nitrogen is subjected to temperature regulation in the temperature regulator Th through water and enters a nitrogen pipe network for a terminal user to use. Propane circulates in the shell pass between the intermediate medium gasifier Tp and the liquid working medium gasifier Tn, the intermediate medium gasifier Tp exchanges heat with water for gasification, then exchanges heat with liquid nitrogen in the liquid working medium gasifier Tn for liquefaction, and finally enters the intermediate medium gasifier Tp.
Here, the intermediate medium vaporizer Tp and the thermostat Th both use water as a heat source, and they are pumped in from the water inlet 1 and the water inlet 2 through the water pumps P1 and P2, respectively, and discharged from the water outlet 1 and the water outlet 2 after corresponding heat exchange, wherein the water pumps P1 and P2 are respectively provided with the air inlet 1 and the air inlet 2 to ensure the normal operation of the equipment.
The working principle and the working process of the intermediate medium gasifier system are as follows: the temperature of the water is 15 ℃ when the water enters the temperature regulator 1, the water flows in a heat exchange tube of the temperature regulator to release heat, the temperature of the water is 13 ℃, the water is finally discharged out of the temperature regulator, the temperature of the water enters an intermediate medium gasifier 2 and is 15 ℃, the water flows in the heat exchange tube of the intermediate medium gasifier to release heat, the temperature of the water is 13 ℃, low-temperature liquid nitrogen firstly enters a liquid working medium gasifier, the temperature is-196 ℃, the temperature is increased to be gasified after latent heat released by condensation of propane outside the pipe is absorbed, the temperature of the water is increased to-28 ℃, and then the water enters a shell side flushing water pipe bundle of the temperature regulator to absorb heat, and the; propane absorbs heat to be gasified in the intermediate medium gasifier and releases heat to be liquefied in the liquid working medium gasifier, so that heat is transferred by repeated circulation of gasification and condensation, and the saturation temperature is constantly-8 ℃.
Referring to fig. 3, in the intermediate medium vaporizer system according to the embodiment of the present invention, the liquid working medium vaporizer Tn and the intermediate medium vaporizer Tp share the same shell pass, and a heat insulating layer BWC1 is disposed on the shell pass for heat insulation; the temperature regulator Th is separately provided with a shell side, and is similarly provided with a heat preservation layer BWC2 for heat preservation. The insulating layer BWC1 and the insulating layer BWC2 can be outer insulating layers made of polyurethane foam.
As shown in fig. 3, the intermediate medium vaporizer system is provided with a piping system, and its specific piping connection structure is as follows. The method comprises the following steps that external liquid nitrogen enters a heat exchange tube pass HX01 of a liquid working medium gasifier Tn through a first branch, nitrogen after heat exchange and gasification of propane enters a shell pass of a temperature regulator Th through a second branch, and finally is output to a nitrogen outlet area through a third branch, wherein a flow regulating valve LLTJF1 and a flow regulating valve LLTJF2 are arranged on the first branch, and a check valve ZHF and a ball valve seven QF7 are arranged on the third branch; meanwhile, a safety valve II AQF2, a ball valve II QF2 and the like are arranged on the branch I, and a safety valve III AQF3 and a ball valve III QF3 are arranged on the branch III to control the discharged air to the emptying air outlet area. Outside water enters a heat exchange tube pass HX03 of the temperature regulator Th through a branch four, then enters a heat exchange tube pass HX02 of the intermediate medium gasifier Tp through a branch five, and finally is discharged to a water outlet area through a branch six, wherein the branch four is provided with a stop valve I JZF1, a ball valve five QF5 and a ball valve six QF6, the branch five is provided with a stop valve III JZF3 and a ball valve eight QF8, and the branch six is provided with a stop valve IV JZF4, a safety valve AQF4, a ball valve four QF4 and the like. Propane circulates between the intermediate medium gasifier Tp and the liquid working medium gasifier Tn, an emptying pipeline is arranged on the liquid working medium gasifier Tn to discharge propane to a propane outlet area, and a safety valve AQF1, a ball valve QF1 and the like are arranged on the branch.
As shown in fig. 3, the intermediate medium gasifier system is further configured with an instrumentation system, which includes several instruments, probes, etc. as accessories to ensure the system operation safety, for example: the liquid working medium gasifier Tn is provided with a thermometer WDJ1 and an analyzer FXY, wherein the analyzer FXY can sample propane; the intermediate medium gasifier Tp is provided with a second thermometer WDJ2 and a liquid level meter YWJ, and a second stop valve JZF2 is correspondingly arranged on a liquid taking pipeline of the liquid level meter YWJ at the moment.
In this way, the utility model discloses a sharing shell side of intermediate medium vaporizer, liquid working medium vaporizer, the thermoregulator sets up a shell side alone, can reduce the influence each other between the different heat exchange tubes of system, and heat transfer area calculates more simply from this, can make system architecture more simplify.
Referring to fig. 4, the utility model discloses intermediate medium vaporizer Tn includes intermediate medium vaporizer barrel 31, can be the preparation of 15MnNiDR board, and it is provided with the heat preservation, specifically can be the outer heat preservation of doing with the preparation of polyurethane foam. The middle medium gasifier barrel 31 is internally provided with a supporting barrel which can be manufactured for S30408; the support cylinder is wound with heat exchange tubes, which can be made of S30408, so that the heat source releases heat in the tube side of the intermediate medium gasifier and the intermediate medium is gasified in the shell side of the intermediate medium gasifier.
The embodiment of the utility model provides an in, same shell side is shared to intermediate medium vaporizer Tn and liquid working medium vaporizer Tp to gaseous state intermediate medium liquefies in the shell side of liquid working medium vaporizer Tp, and liquid working medium gasifies in the tube side of liquid working medium vaporizer Tp, realizes preparing the target gas from this, like nitrogen gas, natural gas etc..
As shown in fig. 4, in order to realize that the intermediate medium vaporizer Tn and the liquid working medium vaporizer Tp share a shell pass, the internal space of the intermediate medium vaporizer cylinder is divided into an upper section and a lower section: the upper section is provided with an upper heat exchange tube 13 to form a liquid working medium gasifier Tp, the liquid working medium gasifier Tp specifically comprises an upper support cylinder 12 which is arranged on an upper support plate 14 and can be manufactured as S30408, the upper support cylinder 12 is wound with the upper heat exchange tube 13 which can be a S30408 slotted tube, the first ends of the upper heat exchange tubes 13 are respectively fixed on the top of the middle medium gasifier cylinder 31 through a top tube plate 11, and the second ends are fixed on one side of the upper section of the middle medium gasifier cylinder 31 through an upper section side tube plate 15; similarly, the lower heat exchange tube 13 is disposed at the lower section to form the intermediate medium vaporizer Tn, and specifically includes a lower support tube 22 mounted on a lower support plate 24, the lower support tube 22 is surrounded by a lower heat exchange tube 23, the lower heat exchange tubes 23 are respectively fixed at the first ends thereof to the bottom of the intermediate medium vaporizer cylinder 31 through a bottom tube plate 21, and at the second ends thereof to one side of the lower section of the intermediate medium vaporizer cylinder 31 through a lower section side tube plate 25.
As shown in fig. 4, the intermediate medium vaporizer cylinder 31 is configured with a plurality of external pipeline ports to correspondingly fill working medium or media, so as to ensure normal use of corresponding functions, specifically: n1, water inlet; n2, water outlet; n3, liquid nitrogen inlet; n4, nitrogen outlet; n5, propane fill port; n6, propane vent; n3, but water outlet N2; n3, but water outlet N2; n3, but water outlet N2; n3, but water outlet N2; n7, vent; N8A, valve port on the liquid level meter; N8B, lower port of level gauge; N9A, N9B, thermometer port; N10A, N10B, spare port.
The embodiment of the utility model provides an adopted around tubular heat exchange tube structure, the thermal energy of heat exchange tube can compensate by oneself, and its unit volume has great heat transfer area, and this helps simplifying structural design, improves heat transfer efficiency. The whole device of the intermediate medium gasifier can be supported by leg type supports, is convenient to be directly installed on site, and has the advantage of small occupied area.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An intermediate medium gasifier system comprises an intermediate medium gasifier, a liquid working medium gasifier and a temperature regulator, wherein the liquid working medium gasifier, the intermediate medium gasifier and the temperature regulator are respectively provided with a heat exchange pipe, so that a heat source can release heat in the intermediate medium gasifier and the temperature regulator, an intermediate medium is gasified in the intermediate medium gasifier and liquefied in the liquid working medium gasifier, and a liquid working medium is gasified in the liquid working medium gasifier and heated in the temperature regulator to obtain target gas.
2. The intermediate medium vaporizer system of claim 1, wherein the intermediate medium vaporizer and the liquid working medium vaporizer are configured with a shell side for the flow of the intermediate medium, the intermediate medium vaporizer is configured with a tube side for the flow of the heat source, and the liquid working medium vaporizer is configured with a tube side for the flow of the liquid nitrogen.
3. The intermediate medium gasifier system as claimed in claim 2, wherein the intermediate medium gasifier system is provided with a piping system, the piping system comprising: the first branch is used for allowing external liquid working media to enter a tube pass of the liquid working medium gasifier; a branch II is used for feeding the target gas after the liquid working medium is gasified in the liquid working medium device into the shell pass of the temperature regulator; a branch III for outputting the target gas after temperature adjustment; a heat supply source enters a tube pass of the temperature regulator; a heat supply source enters a tube pass of the intermediate medium gasifier; and a branch six for discharging the heat source after heat exchange.
4. The intermediate medium gasifier system of claim 3, wherein the piping system is configured with a plurality of control valves, comprising: a second safety valve and a second ball valve are arranged on the first branch, and a third safety valve and a third ball valve are arranged on the third branch; branch four sets up stop valve one and ball valve five and ball valve six, and branch five sets up stop valve three and ball valve eight, and branch six sets up stop valve four, relief valve four and ball valve four.
5. The intermediate medium gasifier system of claim 3, wherein the piping system comprises: the liquid working medium gasifier is provided with an emptying pipeline for discharging the intermediate medium.
6. The intermediate medium gasifier system as claimed in claim 5, wherein the evacuation conduit is provided with a first safety valve and a first ball valve.
7. The intermediate media gasifier system of claim 1, wherein the intermediate media gasifier system is configured with an instrumentation system comprising: the liquid working medium gasifier is provided with a first thermometer and an analyzer, and the intermediate medium gasifier is provided with a second thermometer and a liquid level meter.
8. The intermediate medium gasifier system as claimed in claim 1, wherein a second shut-off valve is provided in the liquid-taking line of the liquid level gauge.
9. The intermediate medium gasifier system according to claim 1, wherein the shell sides of the intermediate medium gasifier and the liquid working medium gasifier and the shell side of the temperature regulator are respectively provided with an insulating layer.
10. The intermediate medium gasifier system as claimed in any of claims 1 to 9, for producing nitrogen, wherein the liquid working medium is liquid nitrogen, the intermediate medium propane and the heat source is water.
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| CN202021621291.3U CN213018881U (en) | 2020-08-06 | 2020-08-06 | Intermediate medium gasifier system |
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| CN202021621291.3U CN213018881U (en) | 2020-08-06 | 2020-08-06 | Intermediate medium gasifier system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115479209A (en) * | 2022-11-15 | 2022-12-16 | 无锡特莱姆气体设备有限公司 | Efficient and energy-saving intermediate medium gasifier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115479209A (en) * | 2022-11-15 | 2022-12-16 | 无锡特莱姆气体设备有限公司 | Efficient and energy-saving intermediate medium gasifier |
| CN115479209B (en) * | 2022-11-15 | 2023-03-10 | 无锡特莱姆气体设备有限公司 | Efficient and energy-saving intermediate medium gasifier |
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