CN206386699U - LNG, CNG common type heat exchange tank of water temperature in a kind of fast uniform tank body - Google Patents

Abstract

The utility model is related to LNG, CNG common type heat exchange tank of water temperature in a kind of fast uniform tank body, including tank body, heater, two-stage CNG heat exchanger tubes, LNG heat exchanger tubes and electronic impeller, liquid heat exchange carrier is filled with tank body, two-stage CNG heat exchanger tubes and LNG heat exchanger tubes are coil arrangement, and above heater, heat exchange tank top is provided with the first thermometer, and tank end is provided with second temperature meter, and tank body is provided with the 3rd thermometer.Compared with prior art, water temperature LNG, CNG common type heat exchange tank can be according to the testing results of three thermometers in a kind of fast uniform tank body of the present utility model, start the electronic impeller that tank interior is set, the heat-exchange carrier of the heating zone of heat transfer zone and bottom to tank body top carries out heat exchange, quickly to raise the water temperature in heat transfer zone, reduce heat exchange tank upper and lower temperature difference, reduce supply time delay, effectively improve LNG and CNG heat exchange efficiency.

Description

LNG, CNG common type heat exchange tank of water temperature in a kind of fast uniform tank body

Technical field

LNG, CNG that the utility model is related to water temperature in a kind of heat exchange tank, more particularly to a kind of fast uniform tank body are shared Type heat exchange tank.

Background technology

The common type heat exchange tank volume decompressed for LNG, CNG is larger, and heater quantity is few, in heating, often produces Water temperature is high around raw heater, and the low phenomenon of water temperature around LNG heat exchanger tubes and CNG heat exchanger tubes, causes source of the gas to be changed in decompression The thermal efficiency is low, such as a kind of LNG, CNG common type heat exchange tank of patent 201420434911.0, and its heat exchange area is located on heating region Side, easily produces upper and lower temperature difference, particularly heats initial stage, temperature difference phenomenon is particularly acute, the temperature of the heat-exchange carrier of heat exchange area Rise is slow, causes that LNG and CNG heat exchange efficiencies are low, supply time delay is long.

Utility model content

Technical problem to be solved in the utility model be overcome the deficiencies in the prior art there is provided it is a kind of it is quick Water temperature in weighing apparatus tank body, to improve LNG, CNG common type heat exchange tank of heat exchange efficiency.

The utility model is to be achieved by the following technical programs：

LNG, CNG common type heat exchange tank of water temperature in a kind of fast uniform tank body, including tank body, adding located at tank body two ends Hot device, the two-stage CNG heat exchanger tubes for stretching into from two ends tank interior, the LNG heat exchanger tubes for stretching into from top tank interior and it is located at Liquid heat exchange carrier is filled with the electronic impeller of tank base, tank body, two-stage CNG heat exchanger tubes and LNG heat exchanger tubes are in tank body Portion is coil arrangement, and is respectively positioned on above heater, in the middle part of coil arrangement of the heat exchange tank top provided with detection LNG heat exchanger tubes Heat-exchange carrier temperature in the middle part of first thermometer of heat-exchange carrier temperature, coil arrangement of the tank end provided with detection CNG heat exchanger tubes The second temperature meter of degree, threeth thermometer of the tank body provided with the heat-exchange carrier temperature near detection heater.

Further, connected between two-stage CNG heat exchanger tubes by ring Outer Tube outside tank body, ring Outer Tube according to CNG flow directions are sequentially provided with stop valve, balanced valve and check-valves.

Further, two-stage CNG heat exchanger tubes include flowing to the one-level CNG heat exchanger tubes and two grades of CNG sequentially passed through according to CNG Heat exchanger tube, second temperature meter is located at one end of the heat exchange tank where one-level CNG heat exchanger tubes.

Compared with prior art, water temperature LNG, CNG common type heat exchange tank in a kind of fast uniform tank body of the present utility model The electronic impeller that tank interior is set can be started according to the testing results of three thermometers, heat transfer zone to tank body top and under The heat-exchange carrier of the heating zone in portion carries out heat exchange, quickly to raise the water temperature in heat transfer zone, reduces heat exchange tank upper and lower temperature difference, subtracts Time delay is supplied less, while effectively improving LNG and CNG heat exchange efficiency.

Brief description of the drawings

Fig. 1 is main structure diagram of the present utility model.

In figure：1. tank body, 2. electronic impellers, 3. heaters, 4. 2 grades of CNG heat exchanger tubes, 5. first thermometers, 6.LNG is changed Heat pipe, 7. one-level CNG heat exchanger tubes, 8. second temperature meters, 9. ring Outer Tubes, 10. block valves, 11. balanced valves, 12. check-valves, 13. the 3rd thermometer.

Embodiment

In order that those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings The utility model is described in further detail with most preferred embodiment.

As shown in figure 1, in a kind of fast uniform tank body of the present utility model water temperature LNG, CNG common type heat exchange tank, bag The two-stage CNG heat exchanger tubes that include tank body 1, the heater 3 located at the two ends of tank body 1, stretch into inside tank body 1 from two ends, stretch into from top Liquid heat exchange carrier is filled with LNG heat exchanger tubes 6 inside tank body 1 and the electronic impeller 2 positioned at the bottom of tank body 1, tank body 1, Two-stage CNG heat exchanger tubes and LNG heat exchanger tubes 6 are coil arrangement inside tank body 1, and are respectively positioned on the top of heater 3, heat exchange tank First thermometer 5 of the heat-exchange carrier temperature in the middle part of coil arrangement of the portion provided with detection LNG heat exchanger tubes 6, the end of tank body 1 is provided with inspection The second temperature meter 8 for the heat-exchange carrier temperature surveyed in the middle part of the coil arrangement of CNG heat exchanger tubes, tank body 1 is attached provided with detection heater 3 3rd thermometer 13 of near heat-exchange carrier temperature.

During work, LNG is low-temperature atmosphere-pressure liquid, and CNG is high pressure gas at normal temperature, and flow velocity is quickly when by pipeline by CNG Therefore need two-stage to exchange heat, liquid heat exchange carrier is filled with inside tank body 1 for water, heater 3 is heated to the water in tank body 1, CNG leads to Excessively stream tube road enters one-level CNG heat exchanger tubes 7, and by the absorption heat of coil arrangement large area so as to improve temperature, reduction is pressed Power, then enters two grades of CNG heat exchanger tubes 4 by ring Outer Tube 9 and continues to improve temperature, reduce pressure, discharged eventually through outlet； LNG is completed after gasification by outlet discharge by the pipeline that circulates into LNG heat exchanger tubes 6；When LNG exchanges heat, the first thermometer 5 is detected Water temperature near water temperature near LNG heat exchange coils, the 3rd thermometer 13 detection heater 3, when the temperature difference of two temperatures meter is more than 5 DEG C, open electronic impeller 2 and the water in tank body 1 is stirred, hot and cold water is occurred eddy flow and contact with each other, realize temperature certainly rapidly Balance；When CNG exchanges heat, electronic impeller 2 can be started according to the temperature difference of the thermometer 13 of second temperature meter 8 and the 3rd, due to two-stage The one-level CNG heat exchanger tubes 7 of CNG heat exchanger tubes recept the caloric larger, it is preferable that need to only detect the water temperature nearby of one-level CNG heat exchanger tubes 7.

Therefore, according to the testing result of three thermometers, the electronic impeller 2 that the inside of tank body 1 is set is started, can be to tank body 1 The heat transfer zone on top and the heating zone of bottom carry out heat exchange, quickly to raise the water temperature in heat transfer zone, reduce above and below heat exchange tank The temperature difference, reduces decompression time delay during supply, while effectively improving LNG and CNG heat exchange efficiency.

The two-stage CNG heat exchanger tubes stretched into from two ends inside tank body 1 and the LNG heat exchanger tubes 6 stretched into from top inside tank body 1, Heated by the heater 3 located at the two ends of tank body 1 for medium, then just complete two-stage CNG heat exchange and LNG heat transfer process, save Cost and floor space.

In this example, connected between two-stage CNG heat exchanger tubes by the ring Outer Tube 9 outside tank body 1, ring Outer Tube 9 Block valve 10, balanced valve 11 and check-valves 12 are sequentially provided with according to CNG flow directions.

Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and Retouching also should be regarded as protection domain of the present utility model.

Claims (3)

1. LNG, CNG common type heat exchange tank of water temperature in a kind of fast uniform tank body, it is characterised in that including tank body (1), be located at The heater (3) at tank body (1) two ends, stretch into from two ends the internal two-stage CNG heat exchanger tubes of tank body (1), tank body (1) is stretched into from top Liquid is filled with internal LNG heat exchanger tubes (6) and the electronic impeller (2) positioned at tank body (1) bottom, the tank body (1) to change It is coil arrangement that heat carrier, two-stage CNG heat exchanger tubes and LNG heat exchanger tubes (6) are internal in tank body (1), and is respectively positioned on heater (3) First temperature of the heat-exchange carrier temperature in the middle part of top, coil arrangement of the heat exchange tank top provided with detection LNG heat exchanger tubes (6) Count (5), the second temperature of the heat-exchange carrier temperature in the middle part of coil arrangement of tank body (1) end provided with detection CNG heat exchanger tubes Count (8), the 3rd thermometer (13) of heat-exchange carrier temperature of the tank body (1) provided with detection heater (3) nearby.

2. LNG, CNG common type heat exchange tank of water temperature in a kind of fast uniform tank body according to claim 1, its feature exist In：By being connected positioned at the outside ring Outer Tube (9) of tank body (1) between the two-stage CNG heat exchanger tubes, the ring Outer Tube (9) Block valve (10), balanced valve (11) and check-valves (12) are sequentially provided with according to CNG flow directions.

3. LNG, CNG common type heat exchange tank of water temperature in a kind of fast uniform tank body according to claim 1, its feature exist In：The two-stage CNG heat exchanger tubes include flowing to the one-level CNG heat exchanger tubes (7) and two grades of CNG heat exchanger tubes sequentially passed through according to CNG (4), second temperature meter (8) is located at one end of the heat exchange tank where one-level CNG heat exchanger tubes (7).