CN211574765U - Integrated liquid nitrogen gas injection system - Google Patents
Integrated liquid nitrogen gas injection system Download PDFInfo
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- CN211574765U CN211574765U CN201921807688.9U CN201921807688U CN211574765U CN 211574765 U CN211574765 U CN 211574765U CN 201921807688 U CN201921807688 U CN 201921807688U CN 211574765 U CN211574765 U CN 211574765U
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Abstract
The utility model provides an integrated form liquid nitrogen gas injection system, including air temperature formula vaporizer, water bath formula electrical heating reheater, waste heat recovery device etc. the low temperature booster pump is connected with feed liquor collector and return-air collector, and air temperature formula vaporizer and low temperature booster pump are through going out liquid collector and be connected, and air temperature formula vaporizer and waste heat recovery device are connected through the collector that gives vent to anger behind the air temperature, and waste heat recovery device and water bath formula electrical heating reheater give vent to anger behind through waste heat recovery device and be connected, generating set with water bath formula electrical heating reheater is through a business turn over water piping connection, and waste heat recovery device installs in generating set's exhaust emission department, and the collector that gives vent to anger behind the reheater is installed to water bath formula electrical heating reheater rear side. The utility model discloses a mode of air temperature formula vaporizer, generator waste heat recovery device and water bath formula electrical heating double heater combination, make full use of on-vehicle space, reduced the equipment and the space of whole gas injection system, practice thrift the energy consumption.
Description
Technical Field
The utility model relates to a cryogenic liquids pump trade field, concretely relates to integrated form liquid nitrogen gas injection system.
Background
Along with the development of oil field industry, need sweep the pipeline and leak hunting before the oil field construction operation, common sweep and leak hunting technology are for injecting into the pipeline and take pressure nitrogen gas, the pressure size is decided according to the operating mode, 35Mpa is the highest, minimum only about 1Mpa, must have one set of system of nitrogen gas pressure boost to accomplish this work during high pressure, equipment relies on the import more at present, pressurize liquid through the booster pump, liquid passes through devices such as boilers heat gasification, reach the mesh of export high pressure nitrogen gas, the booster pump needs the power supply, devices such as boilers need fuels such as diesel oil, make for this basic equipment that integrated equipment supplies more, to the narrow and small area, under the state that does not allow too much equipment to advance, this imported equipment can't carry out the construction operation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve above-mentioned problem to an integrated form liquid nitrogen gas injection system is provided. The gas injection system has the advantages of small occupied area and low energy consumption.
The utility model provides a technical scheme as follows of above-mentioned problem:
an integrated liquid nitrogen gas injection system comprises an air-temperature gasifier, a water-bath type electric heating reheater, a waste heat recovery device, a low-temperature booster pump, a generator set, an electric control cabinet, a liquid inlet collecting pipe, a low-pressure standby liquid inlet pipe, a gas return collecting pipe, a liquid outlet collecting pipe, an air-temperature rear gas outlet collecting pipe, a waste heat recovery device rear gas outlet collecting pipe, a reheater rear gas outlet collecting pipe and an integrated frame, wherein the air-temperature gasifier, the water-bath type electric heating reheater, the low-temperature booster pump, the generator set, the electric control cabinet, the liquid inlet collecting pipe, the standby low-pressure liquid inlet pipe, the gas return collecting pipe, a liquid outlet collecting pipe and the air-temperature rear gas outlet collecting pipe are arranged on the integrated frame, the liquid inlet collecting pipe is arranged at a liquid inlet of the low-temperature booster pump, the gas return collecting pipe is arranged at a gas return opening of the low-temperature booster pump, the liquid outlet, the air-temperature rear air outlet collecting pipe is arranged between an air outlet of the air-temperature gasifier and an air inlet of the waste heat recovery device, the rear air outlet collecting pipe of the waste heat recovery device is arranged between an air outlet of the waste heat recovery device and an air inlet of the water bath type electric heating reheater, the rear air outlet collecting pipe of the reheater is arranged behind the water bath type electric heating reheater, and the low-pressure standby liquid inlet pipe is arranged on the collecting pipe.
Preferably, install a feed liquor stop valve, first blow-off valve and first goat's horn flange joint on the feed liquor collecting pipe, when using, goat's horn flange joint is direct to be connected with the tank wagon, reaches the purpose that supplies the liquid.
Preferably, a high-pressure stop valve, a second emptying valve and a second claw flange joint are installed on the standby low-pressure liquid inlet pipe.
Preferably, the liquid return collecting pipe is provided with a gas return stop valve and a low-pressure safety valve, the other section of the gas return stop valve extends to the tail part of the system, and the low-pressure safety valve can prevent the abnormal rise of the pressure of the pump cavity to damage the pump cavity and automatically exhaust the pressure before damage.
Preferably, the liquid outlet collecting pipe is provided with a first damper and a second damper, and in order to achieve a better damping effect, the second damper is provided with a first high-pressure safety valve; in order to prevent accidental overpressure and automatically and timely empty and release pressure, a high-pressure vent valve and a high-pressure check valve are sequentially installed behind the second damper, the high-pressure vent valve and the high-pressure check valve are opened before the pump is restarted so as not to enable the pump to be started under pressure, the pressure in front of the check valve is released, the zero-pressure starting of the pump is facilitated, and the other end of the high-pressure vent valve extends to the tail of the system.
Preferably, the waste heat recovery device is arranged at the tail gas discharge outlet of the generator set, the waste heat recovery device is of a horizontal cylinder structure, the interior of the waste heat recovery device is of a coil structure, the inlet and the outlet of the coil are exposed out of the lower part of the cylinder, and the flow direction of gas in the coil is opposite to that of tail gas in the cylinder; the two ends of the waste heat recovery device are fixed by adopting supports, and the outlet direction of the waste heat recovery device faces to the air-temperature gasifier.
Preferably, a water inlet and outlet pipe is connected between the water tank of the generator set and the cylinder of the water bath type electric heating reheater, and a hot water pump and a backwater stop valve are arranged on the water inlet and outlet pipe.
Preferably, a first temperature sensor is arranged on the rear exhaust collecting pipe of the waste heat recovery device.
Preferably, a gas flowmeter, a first gas outlet stop valve, a second high-pressure safety valve, a second temperature sensor and a pressure sensor are mounted on the gas outlet collecting pipe behind the reheater.
Preferably, the water bath type electric heating reheater is provided with a liquid level sensor, a third temperature sensor and three groups of electric heating wires.
Preferably, the electric control cabinet is rain-proof, the protection grade is IP55, the electric control cabinet is mounted on a bracket at the upper part of the low-temperature booster pump, an operation platform is arranged beside the bracket of the electric control cabinet, and a guardrail is arranged at the edge of the operation platform; a frequency converter, an air switch, a relay and a 24V power supply are arranged in the electric control cabinet; the electric control cabinet surface panel is embedded with a start-stop button of a pump, a flow meter panel, a frequency converter operating panel, a temperature sensor instrument, a pressure sensor instrument, a generator set operating panel, and a liquid level meter instrument, a temperature instrument and a heating operation knob of the water bath type electric heating reheater.
Compared with the prior art, the utility model discloses the beneficial effect who has does: by adopting the liquid nitrogen gas injection system combining the air temperature type gasifier, the generator waste heat recovery device and the water bath type electric heating reheater, the vehicle-mounted space can be fully utilized, and the equipment number and the space of the whole gas injection system are reduced; the air-temperature gasifier is used for carrying out air heat energy exchange, the waste heat of the generator is used for carrying out secondary heat energy exchange on nitrogen, and finally the water bath type electric heating reheater is used for carrying out temperature compensation, so that the energy consumption can be greatly saved; the hot water in the water tank of the generator set is utilized to exchange heat with the water in the water bath type electric heating reheater, so that the power consumption of the water bath type electric heating reheater can be saved.
Drawings
Fig. 1 is a schematic top view of the present invention;
fig. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic view of the flow structure of the present invention;
in the figure: 1 an air-heated gasifier, 2 a water-bath electric heating reheater, 21 a liquid level sensor, 22 a third temperature sensor, 23 an electric heating wire, 3 a waste heat recovery device, 4 a low-temperature booster pump, 5 a power generation set, 51 a hot water pump, 52 a water return stop valve, 6 an electric control cabinet, 7 a liquid inlet manifold, 71 a liquid inlet stop valve, 72 a first emptying valve, 73 a first claw flange joint, 8 a low-pressure standby liquid inlet pipe, 81 a high-pressure stop valve, 82 a second emptying valve, 83 a second claw flange joint, 9 a gas return manifold, 91 a gas return stop valve, 92 a low-pressure safety valve, 10 a liquid outlet manifold, 101 a first damper, 102 a second damper, 103 a first high-pressure safety valve, 104 a high-pressure emptying valve, 105 a high-pressure check valve, 11 an air temperature after-heating exhaust manifold, 12 a waste heat recovery device after-collecting pipe, 121 a first temperature sensor, 13 a heat after-reheating exhaust manifold, 131 a gas flowmeter, 132 first air outlet stop valve, 133 second air outlet stop valve, 134 second high-pressure safety valve, 135 second temperature sensor, 136 pressure sensor, 14 integrated frame.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and obviously, the described embodiment is only a part of the embodiments of the present invention, and all other embodiments obtained by the ordinary skilled person in the art based on the inventive concept in the present invention belong to the protection scope of the present invention.
Referring to fig. 1-3, the utility model provides an integrated liquid nitrogen gas injection system, which comprises an air-heated vaporizer 1, a water-bath type electric heating reheater 2, a waste heat recovery device 3, a low-temperature booster pump 4, a generator set 5, an electric control cabinet 6, a liquid inlet collecting pipe 7, a low-pressure standby liquid inlet pipe 8, an air return collecting pipe 9, a liquid outlet collecting pipe 10, an air-heated rear gas outlet collecting pipe 11, a waste heat recovery device rear gas outlet collecting pipe 12, a reheater rear gas outlet collecting pipe 13 and an integrated frame 14, wherein the air-heated vaporizer 1, the water-bath type electric heating reheater 2, the low-temperature booster pump 4, the generator set 5, the electric control cabinet 6, the liquid inlet collecting pipe 7, the standby low-pressure liquid inlet pipe 8, the air return collecting pipe 9, the liquid outlet collecting pipe 10 and the air-heated rear gas outlet collecting pipe 11 are arranged on the integrated frame 14, the liquid inlet collecting pipe 7 is arranged at the liquid inlet of the low-temperature, the return air collecting pipe 9 is installed in the return air inlet of low temperature booster pump 4, go out liquid collecting pipe 10 and install between 4 liquid outlets of low temperature booster pump and 1 inlet of air temperature formula gasifier, the collecting pipe 11 of giving vent to anger behind the air temperature is installed between 1 gas outlet of air temperature formula gasifier and 3 air inlets of waste heat recovery device, the collecting pipe 12 of giving vent to anger behind the waste heat recovery device is installed between 3 gas outlets of waste heat recovery device and 2 air inlets of water bath formula electrical heating reheater, the collecting pipe 13 of giving vent to anger behind the reheater is installed after 2 water bath formula electrical heating reheater, the reserve feed liquor pipe 8 of low pressure is installed on going out liquid collecting pipe 10. The liquid inlet collecting pipe 7 is provided with a liquid inlet stop valve 71, a first emptying valve 72 and a first claw flange joint 73, and the claw flange joint can be directly connected with a tank wagon to supply liquid. Install high-pressure stop valve 81 on the reserve low pressure feed liquor pipe 8, second atmospheric valve 82 and second goat's horn flange joint 83, second goat's horn flange joint also can be connected with the tank wagon, carries out the low pressure air feed, need not to turn on the pump. A return air stop valve 91 and a low-pressure safety valve 92 are installed on the return air collecting pipe 9, and the other section of the return air stop valve 91 extends to the tail part of the system. A first damper 101 and a second damper 102 are installed on the liquid outlet collecting pipe 10, a first high-pressure safety valve 103 is installed on the second damper 102, a high-pressure vent valve 104 and a high-pressure check valve 105 are sequentially installed behind the second damper, and the other end of the high-pressure vent valve 105 extends to the tail of the system. The waste heat recovery device 3 is arranged at the tail gas discharge port of the generator set 5, the waste heat recovery device 3 is of a horizontal cylinder structure, the interior of the waste heat recovery device is of a coil structure, the inlet and the outlet of the coil are exposed out of the lower part of the cylinder, and the flow direction of gas in the coil is opposite to that of tail gas in the cylinder; two ends of the waste heat recovery device 3 are fixed by adopting a support, and the outlet direction of the waste heat recovery device 3 faces to the air-temperature gasifier. A water inlet and outlet pipe is connected between the water tank of the generator set 5 and the cylinder of the water bath type electric heating reheater 2, and a hot water pump 51 and a backwater stop valve 52 are arranged on the water inlet and outlet pipe. A first temperature sensor 121 is installed on the exhaust manifold 12 behind the waste heat recovery device, and the first temperature sensor 121 can be used for detecting the temperature of the gas after waste heat recovery. The gas flowmeter 131, the first gas outlet stop valve 132, the second gas outlet stop valve 133, the second high-pressure safety valve 134, the second temperature sensor 135 and the pressure sensor 136 are installed on the gas outlet collecting pipe 13 behind the reheater. The water bath type electric heating reheater 2 is provided with a liquid level sensor 21, a third temperature sensor 22 and three groups of electric heating wires 23.
The electric control cabinet is arranged on a bracket at the upper part of the low-temperature booster pump 4, an operation platform is arranged beside the electric control cabinet bracket, and a guardrail is arranged at the edge of the operation platform; a frequency converter, an air switch, a relay and a 24V power supply are arranged in the electric control cabinet 6; the surface panel of the electric control cabinet 6 is also embedded with a start-stop button of a pump, a flow meter panel, a frequency converter operation panel, a temperature sensor instrument, a pressure sensor instrument, a generator set operation panel, a liquid level meter instrument, a temperature instrument and a heating operation knob of the water bath type electric heating reheater; the electric control cabinet 6 is rain-proof, and the protection grade is IP 55. Two fans are also provided on the integrated frame 14, said fans facing the air-cooled gasifier.
Claims (10)
1. An integrated liquid nitrogen gas injection system comprises an air-temperature gasifier (1), a water-bath type electric heating reheater (2), a waste heat recovery device (3), a low-temperature booster pump (4), a generator set (5), an electric control cabinet (6), a liquid inlet collecting pipe (7), a low-pressure standby liquid inlet pipe (8), a gas return collecting pipe (9), a liquid outlet collecting pipe (10), an air-temperature rear gas outlet collecting pipe (11), a waste heat recovery device rear gas outlet collecting pipe (12), a reheater rear gas outlet collecting pipe (13) and an integrated frame (14), and is characterized in that the air-temperature gasifier (1), the water-bath type electric heating reheater (2), the low-temperature booster pump (4), the generator set (5), the electric control cabinet (6), the liquid inlet collecting pipe (7), the low-pressure standby liquid inlet pipe (8), the gas return collecting pipe (9), the liquid outlet collecting pipe (10) and the air-temperature rear gas outlet collecting pipe (11) are arranged on the integrated frame (14), feed liquor collecting pipe (7) install in the inlet opening department of low temperature booster pump (4), return air collecting pipe (9) are installed in the return air opening department of low temperature booster pump (4), go out liquid collecting pipe (10) and install between low temperature booster pump (4) liquid outlet and air temperature formula vaporizer (1) inlet, set pipe (11) of giving vent to anger after the air temperature is installed between air temperature formula vaporizer (1) gas outlet and waste heat recovery device (3) air inlet, set pipe (12) of giving vent to anger after the waste heat recovery device is installed between waste heat recovery device (3) gas outlet and water bath formula electrical heating regenerator (2) air inlet, set pipe (13) of giving vent to anger after the regenerator are installed after water bath formula electrical heating regenerator (2), reserve feed liquor pipe (8) of low pressure are installed on play liquid collecting pipe (10).
2. The integrated liquid nitrogen gas injection system according to claim 1, wherein the liquid inlet collecting pipe (7) is provided with a liquid inlet stop valve (71), a first vent valve (72) and a first horn flange joint (73).
3. The integrated liquid nitrogen gas injection system according to claim 1, wherein the low-pressure backup liquid inlet pipe (8) is provided with a high-pressure stop valve (81), a second vent valve (82) and a second claw flange joint (83).
4. The integrated liquid nitrogen gas injection system according to claim 1, wherein a gas return stop valve (91) and a low-pressure safety valve (92) are installed on the gas return collecting pipe (9), and the other section of the gas return stop valve (91) extends to the tail of the system.
5. The integrated liquid nitrogen gas injection system according to claim 1, wherein a first damper (101) and a second damper (102) are installed on the liquid outlet collecting pipe (10), a first high-pressure safety valve (103) is installed on the second damper (102), a high-pressure vent valve (104) and a high-pressure check valve (105) are installed behind the second damper in sequence, and the other end of the high-pressure vent valve (104) extends to the tail of the system.
6. The integrated liquid nitrogen gas injection system according to claim 1, wherein the waste heat recovery device (3) is installed at a tail gas discharge port of the generator set (5), the waste heat recovery device (3) is of a horizontal cylinder structure, the interior of the waste heat recovery device is of a coil structure, an inlet and an outlet of the coil are exposed out of the lower portion of the cylinder, and the flow direction of gas inside the coil is opposite to that of tail gas inside the cylinder; two ends of the waste heat recovery device (3) are fixed by adopting a support, and the outlet direction of the waste heat recovery device (3) faces to the air-temperature gasifier; and a water inlet and outlet pipe is connected between the water tank of the generator set (5) and the cylinder of the water bath type electric heating reheater (2), and a hot water pump (51) and a backwater stop valve (52) are arranged on the water inlet and outlet pipe.
7. The integrated liquid nitrogen gas injection system according to claim 1, wherein the after-heat recovery device is provided with a first temperature sensor (121) on the rear gas outlet collecting pipe (12).
8. The integrated liquid nitrogen gas injection system according to claim 1, wherein a gas flow meter (131), a first gas outlet stop valve (132), a second gas outlet stop valve (133), a second high-pressure safety valve (134), a second temperature sensor (135) and a pressure sensor (136) are mounted on the post-recuperator gas outlet manifold (13).
9. The integrated liquid nitrogen gas injection system according to claim 1, wherein the water bath type electric heating reheater (2) is provided with a liquid level sensor (21), a third temperature sensor (22) and three groups of electric heating wires (23).
10. The integrated liquid nitrogen gas injection system according to claim 1, wherein the electric control cabinet (6) is rain-proof and has a protection grade of IP55, and is mounted on a bracket at the upper part of the cryogenic booster pump (4), an operation platform is arranged beside the bracket of the electric control cabinet, and a guardrail is arranged at the edge of the operation platform; a frequency converter, an air switch, a relay and a 24V power supply are arranged in the electric control cabinet (6); the surface panel of the electric control cabinet (6) is embedded with a start-stop button of a pump, a flow meter panel, a frequency converter operating panel, a temperature sensor instrument, a pressure sensor instrument, a generating set operating panel, a liquid level meter instrument, a temperature instrument and a heating operation knob of the water bath type electric heating reheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921807688.9U CN211574765U (en) | 2019-10-25 | 2019-10-25 | Integrated liquid nitrogen gas injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921807688.9U CN211574765U (en) | 2019-10-25 | 2019-10-25 | Integrated liquid nitrogen gas injection system |
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| Publication Number | Publication Date |
|---|---|
| CN211574765U true CN211574765U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921807688.9U Active CN211574765U (en) | 2019-10-25 | 2019-10-25 | Integrated liquid nitrogen gas injection system |
Country Status (1)
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|---|---|
| CN (1) | CN211574765U (en) |
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2019
- 2019-10-25 CN CN201921807688.9U patent/CN211574765U/en active Active
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