CN211876365U - Natural gas heat exchange device - Google Patents

Abstract

The utility model discloses a natural gas heat transfer device, including two electric heater, the electric heating rod is all installed at electric heater's both ends, electric heater's one end is connected with pipeline, install filter, pneumatic ball valve, first pressure transmitter and the first manometer of cutting off on the pipeline, connect through first connecting tube between two pipeline, electric heater's upper end is connected with return line, install first voltage regulator, fourth thermometer, fourth manometer, third pressure transmitter and pressure release pipe on the return line, install the fixed pipe of second on one of them electric heater, install the second on the other electric heater and diffuse the pipeline. The utility model discloses a to the self-heating of high pressure natural gas pipeline, avoid the pipeline icing phenomenon to appear and lead to damaging the condition emergence that speed increases, protected the effective operation of natural gas pipeline, improved the life of gas transmission pipeline.

Description

Natural gas heat exchange device

Technical Field

The utility model relates to a natural gas heat transfer technical field especially relates to natural gas heat transfer device.

Background

The temperature change can be generated in the process of converting high-pressure natural gas into low-pressure natural gas, the corresponding temperature can be reduced when certain pressure is not reduced, the CNG pressure is about 20MPaG, when the CNG pressure is reduced to 1.5MPaG and is reduced by about 60 ℃, the pipelines in most environments can be frozen, the pipeline damage speed is increased, a device for supplying heat in pressure reduction needs to be provided, and therefore a natural gas heat exchange device is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a natural gas heat exchange device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

natural gas heat transfer device, including two electric heaters, the electric heating rod is all installed at electric heater's both ends, electric heater's one end is connected with pipeline, install filter, pneumatic ball valve, first pressure transmitter and first manometer of cutting off on the pipeline, connect through first connecting tube between two pipeline, electric heater's upper end is connected with return line, install first voltage regulator, fourth thermometer, fourth manometer, third pressure transmitter and pressure release pipe on the return line, install the fixed pipe of second on one of them electric heater, install the second on the other electric heater and diffuse the pipeline, the one end of the fixed pipe of second is connected in one side that the pipeline was diffused to the second, and the other one end of two electric heaters is connected with the second connecting tube jointly, the both ends of second connecting tube all are equipped with second voltage regulator, Second manometer and first fixed pipe, the one end of second connecting line is connected with first pipeline of diffusing, and the one end of one of them first fixed pipe is connected in one side of first pipeline of diffusing, the other one end of second connecting line is connected with the delivery pipe, the one end of delivery pipe is connected in one side of first pipeline of diffusing, and the one end of the first fixed pipe of another is connected in the one end of delivery pipe, the middle part of second connecting line is connected with the output tube, install second pressure transmitter, second temperature transmitter, third thermometer and third manometer on the output tube.

Preferably, the conveying pipeline, the first connecting pipeline, the pressure relief pipe, the second fixing pipe, the first diffusing pipeline, the second diffusing pipeline, the first fixing pipe and the second connecting pipeline are all provided with manual ball valves, the number of the manual ball valves on the conveying pipeline, the first connecting pipeline, the pressure relief pipe, the second fixing pipe, the first diffusing pipeline, the second diffusing pipeline and the first fixing pipe is one, and the number of the manual ball valves on the second connecting pipeline is two.

Preferably, a first safety valve is mounted on the first fixing pipe, and a second safety valve is mounted on the pressure relief pipe.

Preferably, a second thermometer and a liquid level switch are installed at one side of the electric heater.

The utility model discloses an electrical heating heat exchanger, high-pressure natural gas get into the pipeline, and the pipeline submergence is in heating medium, and electrical heating stick heating medium passes through the heat transfer principle and transfers medium heat to high-pressure natural gas, accomplishes heat transfer work, and electrical heating heat exchanger provides the heat of reducing pressure through electric energy heating medium water transfer heat for high-pressure natural gas, and the electric heater characteristics: the operation of the electric heating rod is controlled by a control console, the heat for heat exchange is obtained through calculation, the medium preheating temperature is set, a temperature sensor is arranged on a heat exchanger, and when the water temperature reaches the set lower temperature limit, the electric heating rod automatically starts to work; when the water temperature reaches the set upper temperature limit, the electric heating rod automatically stops working.

The utility model discloses a to the self-heating of high pressure natural gas pipeline, avoid the pipeline icing phenomenon to appear and lead to damaging the condition emergence that speed increases, protected the effective operation of natural gas pipeline, improved the life of gas transmission pipeline.

Drawings

Fig. 1 is a schematic structural diagram of a natural gas heat exchange device provided by the present invention;

fig. 2 is a schematic flow diagram of a natural gas heat exchange device provided by the present invention;

fig. 3 is the enlarged view of the structure at a position of the natural gas heat exchanger.

In the figure: 1 manual ball valve, 2 filters, 3 pneumatic cut-off ball valves, 4 first pressure transmitters, 5 conveying pipelines, 6 first pressure meters, 7 first temperature transmitters, 8 temperature detection pipes, 9 first pressure regulators, 10 electric heating rods, 11 first connecting pipelines, 12 first temperature meters, 13 second temperature meters, 14 liquid level switches, 15 first diffusing pipelines, 16 second pressure regulators, 17 second pressure meters, 18 pressure relief pipes, 19 second connecting pipelines, 20 electric heaters, 21 second diffusing pipelines, 22 first safety valves, 23 first fixing pipes, 24 discharging pipes, 25 second fixing pipes, 26 second pressure transmitters, 27 second temperature transmitters, 28 output pipes, 29 third temperature meters, 30 third pressure meters, 31 fourth pressure meters, 32 fourth temperature meters, 33 third pressure transmitters, 34 second safety valves and 35 return pipelines.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 3, the natural gas heat exchange device includes two electric heaters 20, and the electric heating rods 10 are installed at both ends of the electric heaters 20, and are used for heating media in the electric heaters 20: water heats, electric heater 20's one end is connected with conveying line 5, install filter 2 on the conveying line 5, pneumatic ball valve 3 that cuts off, first pressure transmitter 4 and first manometer 6, a pressure for real-time supervision is intraductal, connect through first connecting line 11 between two conveying line 5, electric heater 20's upper end is connected with return line 35, install first voltage regulator 9 on the return line 35, fourth thermometer 32, fourth manometer 31, third pressure transmitter 33 and pressure release pipe 18, conveniently adjust intraductal pressure, carry out pressure release and pressure regulating and handle, can in time know intraductal pressure value.

In the utility model, one of the electric heaters 20 is provided with a second fixed pipe 25, the other electric heater 20 is provided with a second diffusing pipeline 21, one end of the second fixed pipe 25 is connected with one side of the second diffusing pipeline 21, the other ends of the two electric heaters 20 are connected with a second connecting pipeline 19 together, both ends of the second connecting pipeline 19 are provided with a second pressure regulator 16, a second pressure gauge 17 and a first fixed pipe 23 for measuring and regulating pressure, one end of the second connecting pipeline 19 is connected with a first diffusing pipeline 15, the first diffusing pipeline 15 and the second diffusing pipeline 21 are used for conveying heated natural gas, one end of one of the first fixed pipes 23 is connected with one side of the first diffusing pipeline 15, the other end of the second connecting pipeline 19 is connected with a discharge pipe 24, one end of the discharge pipe 24 is connected with one side of the first diffusing pipeline 15, and one end of the other first fixed pipe 23 is connected with one end of the discharge pipe 24, the middle part of the second connecting pipeline 19 is connected with an output pipe 28, and a second pressure transmitter 26, a second temperature transmitter 27, a third thermometer 29 and a third pressure gauge 30 are installed on the output pipe 28, so that the temperature and pressure changes are monitored in real time and fed back in time.

The utility model discloses in, conveying line 5, first connecting pipeline 11, the pressure release pipe 18, the fixed pipe 25 of second, first pipeline 15 of diffusing, pipeline 21 is diffused to the second, all install manual ball valve 1 on first fixed pipe 23 and the second connecting pipeline 19, a seal when being used for the maintenance and repair, perhaps take place the sealing under the emergency and handle, conveying line 5, first connecting pipeline 11, the pressure release pipe 18, the fixed pipe 25 of second, first pipeline 15 of diffusing, manual ball valve 1 quantity on pipeline 21 and the first fixed pipe 23 of diffusing is one, the quantity of manual ball valve 1 is two on the second connecting pipeline 19, correspond two electric heater 20.

The utility model discloses in, install first relief valve 22 on the first fixed pipe 23, install second relief valve 34 on the pressure release pipe 18 for in time balance intraductal pressure, second thermometer 13 and level switch 14 are installed to one side of electric heater 20, survey the temperature in the electric heater 20, guarantee the capacity of medium in the electric heater 20 simultaneously.

The utility model discloses an electrical heating heat exchanger, high-pressure natural gas get into the pipeline, and the pipeline submergence is in heating medium, and electrical heating stick heating medium passes through the heat transfer principle and transfers medium heat to high-pressure natural gas, accomplishes heat transfer work, and electrical heating heat exchanger provides the heat of reducing pressure through electric energy heating medium water transfer heat for high-pressure natural gas, and the electric heater characteristics: the operation of the electric heating rod is controlled by a control console, the heat for heat exchange is obtained through calculation, the medium preheating temperature is set, a temperature sensor is arranged on a heat exchanger, and when the water temperature reaches the set lower temperature limit, the electric heating rod 10 automatically starts to work; when the water temperature reaches the set upper temperature limit, the electric heating rod 10 automatically stops working.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (4)

1. Natural gas heat transfer device, including two electric heater (20), its characterized in that: the electric heating device is characterized in that electric heating rods (10) are installed at two ends of the electric heater (20), one end of the electric heater (20) is connected with a conveying pipeline (5), a filter (2), a pneumatic cut-off ball valve (3), a first pressure transmitter (4) and a first pressure gauge (6) are installed on the conveying pipeline (5), the two conveying pipelines (5) are connected through a first connecting pipeline (11), the upper end of the electric heater (20) is connected with a return pipeline (35), a first pressure regulator (9), a fourth thermometer (32), a fourth pressure gauge (31), a third pressure transmitter (33) and a pressure relief pipe (18) are installed on the return pipeline (35), a second fixing pipe (25) is installed on one electric heater (20), a second diffusing pipeline (21) is installed on the other electric heater (20), one end of the second fixing pipe (25) is connected to one side of the second diffusing pipeline (21), the other one end of two electric heater (20) is connected with second connecting line (19) jointly, the both ends of second connecting line (19) all are equipped with second voltage regulator (16), second manometer (17) and first fixed pipe (23), the one end of second connecting line (19) is connected with first pipeline (15) of diffusing, and the one end of one of them first fixed pipe (23) is connected in one side of first pipeline (15) of diffusing, the other one end of second connecting line (19) is connected with delivery pipe (24), the one end of delivery pipe (24) is connected in one side of first pipeline (15) of diffusing, and the one end of the other first fixed pipe (23) is connected in the one end of delivery pipe (24), the middle part of second connecting line (19) is connected with output tube (28), install second pressure transmitter (26) on output tube (28), A second temperature transmitter (27), a third thermometer (29) and a third pressure gauge (30).

2. The natural gas heat exchange device of claim 1, wherein: all install manual ball valve (1) on conveying line (5), first connecting line (11), pressure release pipe (18), the fixed pipe of second (25), first pipeline (15) of diffusing, second pipeline (21), the fixed pipe of first (23) and second connecting line (19), conveying line (5), first connecting line (11), pressure release pipe (18), the fixed pipe of second (25), the fixed pipe of first pipeline (15), second pipeline (21) of diffusing and manual ball valve (1) quantity on the fixed pipe of first (23) is one, the quantity of manual ball valve (1) is two on second connecting line (19).

3. The natural gas heat exchange device of claim 1, wherein: a first safety valve (22) is installed on the first fixing pipe (23), and a second safety valve (34) is installed on the pressure relief pipe (18).

4. The natural gas heat exchange device of claim 1, wherein: and a second thermometer (13) and a liquid level switch (14) are arranged on one side of the electric heater (20).

Images