CN-224214315-U - High-voltage pressure testing equipment

Abstract

The utility model discloses high-pressure testing equipment which comprises a frame body, a control operation mechanism, a gas-liquid separator, a vaporizer and a heater, wherein a PLC control system is arranged in the control operation mechanism, the gas-liquid separator is connected with a high-pressure plunger pump through a liquid nitrogen conveying pipeline, a liquid nitrogen outlet pipeline is arranged on the high-pressure plunger pump and connected with the vaporizer under the connection of a damper, the vaporizer is connected with the heater through the gas outlet pipeline, liquid nitrogen is directly converted into high-pressure gas with required pressure by the aid of the gas-liquid separator, the vaporizer and the heater, the plunger pump adopts the design of the gas-liquid separator, flexible, rapid, safe and low-cost pressure testing of a high-pressure container and equipment is achieved, limitation of a gas source is reduced, gas supply is ensured by using a Dewar bottle through the vaporizer and the heater, the gasification phenomenon of the liquid nitrogen is ensured, and the safety and the use efficiency are improved.

Inventors

• LIU JIANCANG

Assignees

• 山东佰吉达能源科技有限公司

Dates

Publication Date

20260508

Application Date

20250528

Claims (8)

1. 1. The high-pressure test equipment comprises a frame body (1), a control operation mechanism (2), a gas-liquid separator (3) for separating liquid nitrogen into liquid, a vaporizer (4) for vaporizing low-temperature liquid nitrogen into gas and a heater (5) for heating the gas, and is characterized in that the control operation mechanism (2), the gas-liquid separator (3), the vaporizer (4) and the heater (5) are fixedly arranged on the frame body (1), a PLC control system is arranged in the control operation mechanism (2) and used for controlling the operation of the whole equipment, the gas-liquid separator (3) is connected with a high-pressure plunger pump (6) through a liquid nitrogen conveying pipeline (18), a liquid nitrogen outlet pipeline (7) is arranged on the high-pressure plunger pump (6), and the vaporizer (4) is connected with the heater (5) through a gas outlet pipeline (9) under the connection of the arranged damper (8).
2. 2. A high-pressure test device according to claim 1, characterized in that the surface of the gas-liquid separator (3) is provided with a liquid nitrogen inlet pipeline (10) connected with the gas-liquid separator, and a valve (11) is arranged on the surface of the gas-liquid separator, the gas-liquid separator (3) is also connected with a pressure sensor (12), a liquid sensor (13) and a pneumatic valve (14) through pipelines, and the pneumatic valve (14) is arranged on a gas discharge pipeline (15).
3. 3. The high-pressure test equipment according to claim 1, wherein the high-pressure plunger pump (6) is arranged on one side of the main motor (16) and is in transmission connection with the motor (16), a gas conveying pipeline (17) is arranged on the high-pressure plunger pump (6), the other end of the gas conveying pipeline (17) is connected with the gas-liquid separator (3), and a valve (11) and a pressure sensor (12) are arranged on the gas conveying pipeline (17).
4. 4. The high-pressure test equipment according to claim 1, wherein the upper surface of the gas-liquid separator (3) is also provided with a temperature display (19).
5. 5. A high-pressure test device according to claim 1, wherein one side of the bottom of the vaporizer (4) is connected to a liquid nitrogen outlet pipeline (7), and the other side is connected to a gas outlet pipeline (9) to form a conveying process for converting liquid nitrogen into gas.
6. 6. The high-pressure test equipment according to claim 1, wherein an electric heating control panel (20) is arranged on the surface of the heater (5), and the heater (5) heats the gas and then flows out through a gas connecting pipeline (21) and is connected with the existing equipment at the end for pressing.
7. 7. A high-pressure test apparatus according to claim 6, wherein the gas connection pipe (21) is provided with a pressure gauge (22) and a pressure sensor (12).
8. 8. The high-pressure test equipment according to claim 1, wherein a connecting support frame (23) for supporting and controlling the operating mechanism (2), the gas-liquid separator (3), the vaporizer (4) and the heater (5) is arranged at the bottom of the frame body (1).

Description

High-voltage pressure testing equipment Technical Field The utility model relates to the technical field of pressure testing equipment, in particular to high-pressure testing equipment. Background At present, the working principle of the large-displacement pressure test equipment with the pressure above 100MPa used in China is that liquid nitrogen is converted into gaseous high-pressure nitrogen by using high-pressure plunger pump equipment, the pressure is about 20MPa, and the gas with the pressure above 20MPa is compressed to above 100MPa by using a special compressor, so that the pressure test of a large-volume high-pressure container and a pipeline is realized. The existing equipment has the following defects that the liquid nitrogen supply mode is a liquid nitrogen tank car, when the liquid nitrogen tank car is used for supplying air in the conventional equipment, the phenomenon of rising and gasifying of the liquid nitrogen temperature in a connecting hose can occur under the conditions of small consumption and remote use areas, for example, the phenomenon of gasifying liquid nitrogen can not be ensured due to the fact that a dewar bottle is used for supplying air because a pipeline is thin, and meanwhile, the air source has certain limitation. Disclosure of utility model The utility model aims to provide high-voltage pressure test equipment so as to solve the problems in the background technology. The high-pressure test equipment comprises a frame body, a control operation mechanism, a gas-liquid separator for separating liquid from nitrogen and liquid, a vaporizer for vaporizing low-temperature liquid nitrogen into gas and a heater for heating the gas, wherein the control operation mechanism, the gas-liquid separator, the vaporizer and the heater are fixedly arranged on the frame body, the control operation mechanism is internally provided with a PLC control system for controlling the whole equipment to operate, the gas-liquid separator is connected with a high-pressure plunger pump through a liquid nitrogen conveying pipeline, the high-pressure plunger pump is provided with a liquid nitrogen outlet pipeline, and is connected with the vaporizer through the gas outlet pipeline under the connection of a damper. Preferably, the surface of the gas-liquid separator is provided with a liquid nitrogen inlet pipeline connected with the gas-liquid separator, and a valve is arranged on the surface of the gas-liquid separator, the gas-liquid separator is also connected with a pressure sensor, a liquid sensor and a pneumatic valve through pipelines, and the pneumatic valve is arranged on a gas discharge pipeline. Preferably, the high-pressure plunger pump is arranged on one side of the main motor and is in transmission connection with the motor, a gas conveying pipeline is arranged on the high-pressure plunger pump, the other end of the gas conveying pipeline is connected with the gas-liquid separator, and a valve and a pressure sensor are arranged on the gas conveying pipeline. Preferably, the upper surface of the gas-liquid separator is also provided with a temperature display. Preferably, one side of the bottom of the vaporizer is connected with the liquid nitrogen outlet pipeline, and the other side of the bottom of the vaporizer is connected with the gas outlet pipeline, so that a conveying process for converting liquid nitrogen into gas is formed between the two. Preferably, an electric heating control panel is arranged on the surface of the heater, and the heater heats the gas and then flows out through a gas connecting pipeline, and is connected with the existing equipment at the end for pressing. Preferably, the gas connecting pipeline is provided with a pressure gauge and a pressure sensor. Preferably, a connecting support frame for supporting and controlling the operating mechanism, the gas-liquid separator, the vaporizer and the heater is arranged at the bottom of the frame body. The beneficial effects of the utility model are as follows: This high pressure test equipment is through the mode of the gas-liquid separator, vaporizer and the heater that sets up with liquid nitrogen direct conversion into the high-pressure gas of required pressure, plunger pump feed liquor adopts the gas-liquid separator design, and gas-liquid separator installs level sensor additional, realize PLC automatic control, liquid nitrogen converts into the gas displacement and is 240Nm3/h, can realize high-pressure vessel and equipment's nimble, quick, safety, low-cost pressure test, the restriction with the gas source has been reduced, use the dewar bottle air feed through vaporizer and heater, guarantee the gasification phenomenon of liquid nitrogen, equipment and liquid nitrogen use cost are practiced thrift, security and availability factor are improved. Drawings FIG. 1 is a schematic diagram of the overall structure of the present utility model; FIG. 2 is a schematic view of the installation of the structure of the gas-li