CN211235311U - Immersed steel pipe still water pressure tester - Google Patents
Immersed steel pipe still water pressure tester Download PDFInfo
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- CN211235311U CN211235311U CN201922463190.1U CN201922463190U CN211235311U CN 211235311 U CN211235311 U CN 211235311U CN 201922463190 U CN201922463190 U CN 201922463190U CN 211235311 U CN211235311 U CN 211235311U
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Abstract
The utility model discloses an immersion steel tube still water pressure testing machine, which comprises a feeding frame, a discharging frame, a pressure testing head, an oil cylinder driving type automatic clamping mechanism, an oil cylinder driving type automatic pipe overturning mechanism, an oil cylinder driving type moving trolley, a hydraulic station, an automatic control system and a pressure testing device; the pressure testing device comprises an inclined rail, a lifting oil cylinder, a pressurizing oil cylinder and a pressure testing pool filled with clear water. The utility model naturally waters the steel pipe in rolling without water filling of a water pump, and the continuous pressure test speed is high; the process flow is simple, and the failure rate of equipment is low; the pressure test is completed underwater, so that the safety is good; the pressure test and unloading efficiency of the booster cylinder is high; the energy is saved well; the automation degree is high.
Description
Technical Field
The utility model relates to a steel pipe pressure testing field, concretely relates to immersion steel pipe still water pressure testing machine.
Background
The steel pipe hydrostatic pressure test is an important technical means for testing the pressure resistance of the steel pipe, unqualified steel pipes which burst and leak are thoroughly eliminated through the hydrostatic pressure test, and qualified steel pipes with strong pressure resistance are screened out.
At present, when a steel pipe is tested in still water, the steel pipe is generally filled with water by a water pump, then is pressed by a high-pressure test pump for testing pressure, and then is unloaded by an unloading valve. The steel pipe still water pressure testing method has the advantages of low pressure testing speed and low working efficiency; the process flow is complicated, and the failure rate of equipment is high; large-area ground operation and poor safety.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides an immersion steel tube still water pressure testing machine, which comprises a feeding frame, a discharging frame, a pressure testing head, an oil cylinder driving type automatic clamping mechanism, an oil cylinder driving type automatic pipe overturning mechanism, an oil cylinder driving type moving trolley, a hydraulic station, an automatic control system and a pressure testing device, and is characterized in that the pressure testing device comprises an inclined rail, a lifting oil cylinder, a pressurizing oil cylinder and a pressure testing pool filled with clear water; the feeding frame and the discharging frame are respectively arranged on two sides of the pressure testing pool; the lifting oil cylinder is arranged at the bottom of one side, close to the discharging frame, of the pressure testing pool, and a V-shaped bracket is arranged at the top of a piston rod of the lifting oil cylinder; the pressurizing oil cylinder is arranged on the side wall of the pressure test pool and is aligned with the lifting oil cylinder in the transverse direction; the lifting oil cylinder and the pressurizing oil cylinder are respectively connected with the hydraulic station through hydraulic oil pipes; the upper side of the inclined rail is connected with the feeding frame, and the lower side of the inclined rail is provided with a baffle and is close to the V-shaped bracket of the lifting oil cylinder; the oil cylinder driving type automatic clamping mechanism is arranged in the middle of a steel pipe to be tested in the pressure testing pool; the pressure testing head is in a cylindrical shape with an opening at the top, the inner diameter of the pressure testing head is matched with the outer diameter of the steel pipe, a through hole matched with the outer diameter of the piston rod of the booster oil cylinder is formed in the center of the bottom of the pressure testing head at one end of the steel pipe, and a through hole matched with the outer diameter of the high-pressure pipe is formed in the center of the bottom of the pressure testing head; the pressure testing head can move forward or backward under the driving of the oil cylinder driving type moving trolley, the pressure testing head is sleeved around the two ends of the steel pipe and seals the end parts when moving forward, and the pressure testing head is separated from the two ends of the steel pipe when moving backward; the oil cylinder driving type automatic pipe overturning mechanism is respectively arranged on the lower side of the inclined rail close to the pressure testing pool in the pressure testing pool and on one side of the discharging frame close to the pressure testing pool; the oil cylinder driving type automatic clamping mechanism, the oil cylinder driving type automatic pipe overturning mechanism and the oil cylinder driving type moving trolley are all connected with an automatic control system through a hydraulic station.
The end seal is in the form of an end face seal, a radial seal or an inner surface seal.
A radial sealing mode is adopted between the central through hole at the bottom of the pressure testing head at one end of the steel pipe and the piston rod of the booster oil cylinder.
The radial sealing mode is that an annular groove is arranged in the pressure testing head, and a sealing ring is arranged in the annular groove.
The inclined rail is of an upper layer frame structure and a lower layer frame structure, and only one steel pipe can be accommodated between the upper layer and the lower layer.
And a pressure sensor and a pressure regulating valve which are connected with the automatic control system are arranged on the pipeline of the high-pressure pipe.
The automatic control system adopts a PLC control system.
Compared with the prior art, the utility model discloses mainly have as follows showing the advantage:
1. the water pump is not needed for filling water, the pressure test speed is high, the time is saved, and the advantage is more prominent when the steel pipe is thick.
2. The steel pipe is continuously sunk into water by adopting the inclined rail, so that the steel pipe is fully filled with water before pressure testing, and the continuous pressure testing efficiency is high.
3. The process flow is simple, the failure rate of equipment is low, and the economical efficiency is good.
4. The whole pressure test process is completed below the water surface in the pressure test pool, and the safety is better.
5. Compared with a pressure test pump, the pressure test efficiency is higher by adopting the booster oil cylinder.
6. Compared with unloading by an unloading valve, the unloading efficiency is higher by adopting the pressurizing oil cylinder.
7. Because the water pump is not needed to be filled with water, the pressure of the pressure test pump is not needed, and the unloading valve is not needed to unload, the energy-saving property is better.
8. The automation degree is high, and manpower and material resources are saved.
Drawings
FIG. 1 is a schematic view of the structure layout and basic flow of the present invention;
FIG. 2 is a schematic view of a pressure test of a booster cylinder;
in the figure: 1-pressure test pool, 2-lower layer, 3-feeding frame, 4-steel pipe, 5-upper layer, 6-inclined rail, 7-V-shaped bracket, 8-lifting oil cylinder, 9-discharging frame, 10-water in pool, 11-booster oil cylinder piston rod, 12-sealing ring, 13-water in pipe, 14-pressure test head, 15-booster oil cylinder and 16-pressure test pool side wall.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and accompanying drawings.
Example 1
See fig. 1 and 2. An immersion type steel pipe still water pressure testing machine comprises a feeding frame 3, a discharging frame 9, a pressure testing head 14, an oil cylinder driving type automatic clamping mechanism, an oil cylinder driving type automatic pipe overturning mechanism, an oil cylinder driving type moving trolley, a hydraulic station, an automatic control system and a pressure testing device. The pressure testing device comprises an inclined rail 6, a lifting oil cylinder 8, a pressurizing oil cylinder 15 and a pressure testing pool 1 filled with clear water. The feeding frame 3 and the discharging frame 9 are respectively arranged at two sides of the pressure testing pool 1. The lifting oil cylinder 8 is arranged at the bottom of one side, close to the discharging frame 9, of the pressure testing pool 1, and the top of a piston rod of the lifting oil cylinder 8 is provided with a V-shaped bracket 7. The booster cylinder 15 is mounted on the side wall 16 of the pressure test tank and is aligned with the lifting cylinder 8 in the transverse direction. The lifting oil cylinder 8 and the pressurizing oil cylinder 15 are respectively connected with the hydraulic station through hydraulic oil pipes. The upper side of the inclined rail 6 is connected with the feeding frame 3, and the lower side is provided with a baffle plate and is close to the V-shaped bracket 7 of the lifting oil cylinder. The oil cylinder driving type automatic clamping mechanism is arranged in the middle of a steel pipe 4 for testing pressure in the pressure testing pool 1. The pressure testing head 14 is a cylinder with an open top, the inner diameter of the pressure testing head is matched with the outer diameter of the steel pipe 4, a through hole matched with the outer diameter of the piston rod 11 of the booster oil cylinder is formed in the center of the bottom of the pressure testing head 14 at one end of the steel pipe 4, and a through hole matched with the outer diameter of the high-pressure pipe is formed in the center of the bottom of the pressure testing head 14 at the. The pressure testing head 14 can move forward or backward under the driving of the oil cylinder driving type moving trolley, the pressure testing head 14 is sleeved around the two ends of the steel pipe 4 and the end parts of the steel pipe are sealed when the pressure testing head moves forward, and the pressure testing head 14 is separated from the two ends of the steel pipe 4 when the pressure testing head moves backward. The oil cylinder driving type automatic pipe overturning mechanism is respectively arranged at the lower side of the inclined rail 6 in the pressure testing pool 1 and at the side of the discharging frame 9 close to the pressure testing pool 1. The oil cylinder driving type automatic clamping mechanism, the oil cylinder driving type automatic pipe overturning mechanism and the oil cylinder driving type moving trolley are all connected with an automatic control system through a hydraulic station.
Example 2
See fig. 1 and 2. An immersion type steel pipe still water pressure testing machine comprises a feeding frame 3, a discharging frame 9, a pressure testing head 14, an oil cylinder driving type automatic clamping mechanism, an oil cylinder driving type automatic pipe overturning mechanism, an oil cylinder driving type moving trolley, a hydraulic station, an automatic control system and a pressure testing device. The pressure testing device comprises an inclined rail 6, a lifting oil cylinder 8, a pressurizing oil cylinder 15 and a pressure testing pool 1 filled with clear water. The feeding frame 3 and the discharging frame 9 are respectively arranged at two sides of the pressure testing pool 1. The lifting oil cylinder 8 is arranged at the bottom of one side, close to the discharging frame 9, of the pressure testing pool 1, and the top of a piston rod of the lifting oil cylinder 8 is provided with a V-shaped bracket 7. The booster cylinder 15 is mounted on the side wall 16 of the pressure test tank and is aligned with the lifting cylinder 8 in the transverse direction. The lifting oil cylinder 8 and the pressurizing oil cylinder 15 are respectively connected with the hydraulic station through hydraulic oil pipes. The upper side of the inclined rail 6 is connected with the feeding frame 3, and the lower side is provided with a baffle plate and is close to the V-shaped bracket 7 of the lifting oil cylinder. The oil cylinder driving type automatic clamping mechanism is arranged in the middle of a steel pipe 4 for testing pressure in the pressure testing pool 1. The pressure testing head 14 is a cylinder with an open top, the inner diameter of the pressure testing head is matched with the outer diameter of the steel pipe 4, a through hole matched with the outer diameter of the piston rod 11 of the booster oil cylinder is formed in the center of the bottom of the pressure testing head 14 at one end of the steel pipe 4, and a through hole matched with the outer diameter of the high-pressure pipe is formed in the center of the bottom of the pressure testing head 14 at the. The pressure testing head 14 can move forward or backward under the driving of the oil cylinder driving type moving trolley, the pressure testing head 14 is sleeved around the two ends of the steel pipe 4 and the end parts of the steel pipe are sealed when the pressure testing head moves forward, and the pressure testing head 14 is separated from the two ends of the steel pipe 4 when the pressure testing head moves backward. The oil cylinder driving type automatic pipe overturning mechanism is respectively arranged at the lower side of the inclined rail 6 in the pressure testing pool 1 and at the side of the discharging frame 9 close to the pressure testing pool 1. The oil cylinder driving type automatic clamping mechanism, the oil cylinder driving type automatic pipe overturning mechanism and the oil cylinder driving type moving trolley are all connected with an automatic control system through a hydraulic station.
The end seal is in the form of an end face seal, a radial seal or an inner surface seal.
Example 3
See fig. 1 and 2. An immersion type steel pipe still water pressure testing machine comprises a feeding frame 3, a discharging frame 9, a pressure testing head 14, an oil cylinder driving type automatic clamping mechanism, an oil cylinder driving type automatic pipe overturning mechanism, an oil cylinder driving type moving trolley, a hydraulic station, an automatic control system and a pressure testing device. The pressure testing device comprises an inclined rail 6, a lifting oil cylinder 8, a pressurizing oil cylinder 15 and a pressure testing pool 1 filled with clear water. The feeding frame 3 and the discharging frame 9 are respectively arranged at two sides of the pressure testing pool 1. The lifting oil cylinder 8 is arranged at the bottom of one side, close to the discharging frame 9, of the pressure testing pool 1, and the top of a piston rod of the lifting oil cylinder 8 is provided with a V-shaped bracket 7. The booster cylinder 15 is mounted on the side wall 16 of the pressure test tank and is aligned with the lifting cylinder 8 in the transverse direction. The lifting oil cylinder 8 and the pressurizing oil cylinder 15 are respectively connected with the hydraulic station through hydraulic oil pipes. The upper side of the inclined rail 6 is connected with the feeding frame 3, and the lower side is provided with a baffle plate and is close to the V-shaped bracket 7 of the lifting oil cylinder. The oil cylinder driving type automatic clamping mechanism is arranged in the middle of a steel pipe 4 for testing pressure in the pressure testing pool 1. The pressure testing head 14 is a cylinder with an open top, the inner diameter of the pressure testing head is matched with the outer diameter of the steel pipe 4, a through hole matched with the outer diameter of the piston rod 11 of the booster oil cylinder is formed in the center of the bottom of the pressure testing head 14 at one end of the steel pipe 4, and a through hole matched with the outer diameter of the high-pressure pipe is formed in the center of the bottom of the pressure testing head 14 at the. The pressure testing head 14 can move forward or backward under the driving of the oil cylinder driving type moving trolley, the pressure testing head 14 is sleeved around the two ends of the steel pipe 4 and the end parts of the steel pipe are sealed when the pressure testing head moves forward, and the pressure testing head 14 is separated from the two ends of the steel pipe 4 when the pressure testing head moves backward. The oil cylinder driving type automatic pipe overturning mechanism is respectively arranged at the lower side of the inclined rail 6 in the pressure testing pool 1 and at the side of the discharging frame 9 close to the pressure testing pool 1. The oil cylinder driving type automatic clamping mechanism, the oil cylinder driving type automatic pipe overturning mechanism and the oil cylinder driving type moving trolley are all connected with an automatic control system through a hydraulic station.
The end seal adopts an end face seal form, a radial seal form or an inner surface seal form; a radial sealing mode is adopted between a central through hole at the bottom of a pressure testing head 14 at one end of the steel pipe 4 and a piston rod 11 of the booster oil cylinder.
Example 4
See fig. 1 and 2. An immersion type steel pipe still water pressure testing machine comprises a feeding frame 3, a discharging frame 9, a pressure testing head 14, an oil cylinder driving type automatic clamping mechanism, an oil cylinder driving type automatic pipe overturning mechanism, an oil cylinder driving type moving trolley, a hydraulic station, an automatic control system and a pressure testing device. The pressure testing device comprises an inclined rail 6, a lifting oil cylinder 8, a pressurizing oil cylinder 15 and a pressure testing pool 1 filled with clear water. The feeding frame 3 and the discharging frame 9 are respectively arranged at two sides of the pressure testing pool 1. The lifting oil cylinder 8 is arranged at the bottom of one side, close to the discharging frame 9, of the pressure testing pool 1, and the top of a piston rod of the lifting oil cylinder 8 is provided with a V-shaped bracket 7. The booster cylinder 15 is mounted on the side wall 16 of the pressure test tank and is aligned with the lifting cylinder 8 in the transverse direction. The lifting oil cylinder 8 and the pressurizing oil cylinder 15 are respectively connected with the hydraulic station through hydraulic oil pipes. The upper side of the inclined rail 6 is connected with the feeding frame 3, and the lower side is provided with a baffle plate and is close to the V-shaped bracket 7 of the lifting oil cylinder. The oil cylinder driving type automatic clamping mechanism is arranged in the middle of a steel pipe 4 for testing pressure in the pressure testing pool 1. The pressure testing head 14 is a cylinder with an open top, the inner diameter of the pressure testing head is matched with the outer diameter of the steel pipe 4, a through hole matched with the outer diameter of the piston rod 11 of the booster oil cylinder is formed in the center of the bottom of the pressure testing head 14 at one end of the steel pipe 4, and a through hole matched with the outer diameter of the high-pressure pipe is formed in the center of the bottom of the pressure testing head 14 at the. The pressure testing head 14 can move forward or backward under the driving of the oil cylinder driving type moving trolley, the pressure testing head 14 is sleeved around the two ends of the steel pipe 4 and the end parts of the steel pipe are sealed when the pressure testing head moves forward, and the pressure testing head 14 is separated from the two ends of the steel pipe 4 when the pressure testing head moves backward. The oil cylinder driving type automatic pipe overturning mechanism is respectively arranged at the lower side of the inclined rail 6 in the pressure testing pool 1 and at the side of the discharging frame 9 close to the pressure testing pool 1. The oil cylinder driving type automatic clamping mechanism, the oil cylinder driving type automatic pipe overturning mechanism and the oil cylinder driving type moving trolley are all connected with an automatic control system through a hydraulic station.
The end seal adopts an end face seal form, a radial seal form or an inner surface seal form; a radial sealing mode is adopted between a central through hole at the bottom of a pressure testing head 14 at one end of the steel pipe 4 and a booster cylinder piston rod 11; the radial sealing mode is that an annular groove is arranged in the pressure testing head, and a sealing ring 12 is arranged in the annular groove.
Example 5
See fig. 1 and 2. An immersion type steel pipe still water pressure testing machine comprises a feeding frame 3, a discharging frame 9, a pressure testing head 14, an oil cylinder driving type automatic clamping mechanism, an oil cylinder driving type automatic pipe overturning mechanism, an oil cylinder driving type moving trolley, a hydraulic station, an automatic control system and a pressure testing device. The pressure testing device comprises an inclined rail 6, a lifting oil cylinder 8, a pressurizing oil cylinder 15 and a pressure testing pool 1 filled with clear water. The feeding frame 3 and the discharging frame 9 are respectively arranged at two sides of the pressure testing pool 1. The lifting oil cylinder 8 is arranged at the bottom of one side, close to the discharging frame 9, of the pressure testing pool 1, and the top of a piston rod of the lifting oil cylinder 8 is provided with a V-shaped bracket 7. The booster cylinder 15 is mounted on the side wall 16 of the pressure test tank and is aligned with the lifting cylinder 8 in the transverse direction. The lifting oil cylinder 8 and the pressurizing oil cylinder 15 are respectively connected with the hydraulic station through hydraulic oil pipes. The upper side of the inclined rail 6 is connected with the feeding frame 3, and the lower side is provided with a baffle plate and is close to the V-shaped bracket 7 of the lifting oil cylinder. The oil cylinder driving type automatic clamping mechanism is arranged in the middle of a steel pipe 4 for testing pressure in the pressure testing pool 1. The pressure testing head 14 is a cylinder with an open top, the inner diameter of the pressure testing head is matched with the outer diameter of the steel pipe 4, a through hole matched with the outer diameter of the piston rod 11 of the booster oil cylinder is formed in the center of the bottom of the pressure testing head 14 at one end of the steel pipe 4, and a through hole matched with the outer diameter of the high-pressure pipe is formed in the center of the bottom of the pressure testing head 14 at the. The pressure testing head 14 can move forward or backward under the driving of the oil cylinder driving type moving trolley, the pressure testing head 14 is sleeved around the two ends of the steel pipe 4 and the end parts of the steel pipe are sealed when the pressure testing head moves forward, and the pressure testing head 14 is separated from the two ends of the steel pipe 4 when the pressure testing head moves backward. The oil cylinder driving type automatic pipe overturning mechanism is respectively arranged at the lower side of the inclined rail 6 in the pressure testing pool 1 and at the side of the discharging frame 9 close to the pressure testing pool 1. The oil cylinder driving type automatic clamping mechanism, the oil cylinder driving type automatic pipe overturning mechanism and the oil cylinder driving type moving trolley are all connected with an automatic control system through a hydraulic station.
The end seal adopts an end face seal form, a radial seal form or an inner surface seal form; a radial sealing mode is adopted between a central through hole at the bottom of a pressure testing head 14 at one end of the steel pipe 4 and a booster cylinder piston rod 11; the radial sealing mode is that an annular groove is arranged in the pressure testing head, and a sealing ring 12 is arranged in the annular groove; the inclined rail 6 is of an upper layer frame structure and a lower layer frame structure, and only one steel pipe 4 can be accommodated between the upper layer 5 and the lower layer 2.
Example 6
See fig. 1 and 2. An immersion type steel pipe still water pressure testing machine comprises a feeding frame 3, a discharging frame 9, a pressure testing head 14, an oil cylinder driving type automatic clamping mechanism, an oil cylinder driving type automatic pipe overturning mechanism, an oil cylinder driving type moving trolley, a hydraulic station, an automatic control system and a pressure testing device. The pressure testing device comprises an inclined rail 6, a lifting oil cylinder 8, a pressurizing oil cylinder 15 and a pressure testing pool 1 filled with clear water. The feeding frame 3 and the discharging frame 9 are respectively arranged at two sides of the pressure testing pool 1. The lifting oil cylinder 8 is arranged at the bottom of one side, close to the discharging frame 9, of the pressure testing pool 1, and the top of a piston rod of the lifting oil cylinder 8 is provided with a V-shaped bracket 7. The booster cylinder 15 is mounted on the side wall 16 of the pressure test tank and is aligned with the lifting cylinder 8 in the transverse direction. The lifting oil cylinder 8 and the pressurizing oil cylinder 15 are respectively connected with the hydraulic station through hydraulic oil pipes. The upper side of the inclined rail 6 is connected with the feeding frame 3, and the lower side is provided with a baffle plate and is close to the V-shaped bracket 7 of the lifting oil cylinder. The oil cylinder driving type automatic clamping mechanism is arranged in the middle of a steel pipe 4 for testing pressure in the pressure testing pool 1. The pressure testing head 14 is a cylinder with an open top, the inner diameter of the pressure testing head is matched with the outer diameter of the steel pipe 4, a through hole matched with the outer diameter of the piston rod 11 of the booster oil cylinder is formed in the center of the bottom of the pressure testing head 14 at one end of the steel pipe 4, and a through hole matched with the outer diameter of the high-pressure pipe is formed in the center of the bottom of the pressure testing head 14 at the. The pressure testing head 14 can move forward or backward under the driving of the oil cylinder driving type moving trolley, the pressure testing head 14 is sleeved around the two ends of the steel pipe 4 and the end parts of the steel pipe are sealed when the pressure testing head moves forward, and the pressure testing head 14 is separated from the two ends of the steel pipe 4 when the pressure testing head moves backward. The oil cylinder driving type automatic pipe overturning mechanism is respectively arranged at the lower side of the inclined rail 6 in the pressure testing pool 1 and at the side of the discharging frame 9 close to the pressure testing pool 1. The oil cylinder driving type automatic clamping mechanism, the oil cylinder driving type automatic pipe overturning mechanism and the oil cylinder driving type moving trolley are all connected with an automatic control system through a hydraulic station.
The end seal adopts an end face seal form, a radial seal form or an inner surface seal form; a radial sealing mode is adopted between a central through hole at the bottom of a pressure testing head 14 at one end of the steel pipe 4 and a booster cylinder piston rod 11; the radial sealing mode is that an annular groove is arranged in the pressure testing head, and a sealing ring 12 is arranged in the annular groove; the inclined rail 6 is of an upper layer frame structure and a lower layer frame structure, and only one steel pipe 4 can be accommodated between the upper layer 5 and the lower layer 2; and a pressure sensor and a pressure regulating valve which are connected with the automatic control system are arranged on the pipeline of the high-pressure pipe.
Example 7
See fig. 1 and 2. An immersion type steel pipe still water pressure testing machine comprises a feeding frame 3, a discharging frame 9, a pressure testing head 14, an oil cylinder driving type automatic clamping mechanism, an oil cylinder driving type automatic pipe overturning mechanism, an oil cylinder driving type moving trolley, a hydraulic station, an automatic control system and a pressure testing device. The pressure testing device comprises an inclined rail 6, a lifting oil cylinder 8, a pressurizing oil cylinder 15 and a pressure testing pool 1 filled with clear water. The feeding frame 3 and the discharging frame 9 are respectively arranged at two sides of the pressure testing pool 1. The lifting oil cylinder 8 is arranged at the bottom of one side, close to the discharging frame 9, of the pressure testing pool 1, and the top of a piston rod of the lifting oil cylinder 8 is provided with a V-shaped bracket 7. The booster cylinder 15 is mounted on the side wall 16 of the pressure test tank and is aligned with the lifting cylinder 8 in the transverse direction. The lifting oil cylinder 8 and the pressurizing oil cylinder 15 are respectively connected with the hydraulic station through hydraulic oil pipes. The upper side of the inclined rail 6 is connected with the feeding frame 3, and the lower side is provided with a baffle plate and is close to the V-shaped bracket 7 of the lifting oil cylinder. The oil cylinder driving type automatic clamping mechanism is arranged in the middle of a steel pipe 4 for testing pressure in the pressure testing pool 1. The pressure testing head 14 is a cylinder with an open top, the inner diameter of the pressure testing head is matched with the outer diameter of the steel pipe 4, a through hole matched with the outer diameter of the piston rod 11 of the booster oil cylinder is formed in the center of the bottom of the pressure testing head 14 at one end of the steel pipe 4, and a through hole matched with the outer diameter of the high-pressure pipe is formed in the center of the bottom of the pressure testing head 14 at the. The pressure testing head 14 can move forward or backward under the driving of the oil cylinder driving type moving trolley, the pressure testing head 14 is sleeved around the two ends of the steel pipe 4 and the end parts of the steel pipe are sealed when the pressure testing head moves forward, and the pressure testing head 14 is separated from the two ends of the steel pipe 4 when the pressure testing head moves backward. The oil cylinder driving type automatic pipe overturning mechanism is respectively arranged at the lower side of the inclined rail 6 in the pressure testing pool 1 and at the side of the discharging frame 9 close to the pressure testing pool 1. The oil cylinder driving type automatic clamping mechanism, the oil cylinder driving type automatic pipe overturning mechanism and the oil cylinder driving type moving trolley are all connected with an automatic control system through a hydraulic station.
The end seal adopts an end face seal form, a radial seal form or an inner surface seal form; a radial sealing mode is adopted between a central through hole at the bottom of a pressure testing head 14 at one end of the steel pipe 4 and a booster cylinder piston rod 11; the radial sealing mode is that an annular groove is arranged in the pressure testing head, and a sealing ring 12 is arranged in the annular groove; the inclined rail 6 is of an upper layer frame structure and a lower layer frame structure, and only one steel pipe 4 can be accommodated between the upper layer 5 and the lower layer 2; a pressure sensor and a pressure regulating valve which are connected with the automatic control system are arranged on the pipeline of the high-pressure pipe; the automatic control system adopts a PLC control system.
The basic working principle of the utility model is as follows:
after being transversely placed on the inclined rail 6, the steel pipes 4 on the feeding frame 3 sequentially roll into the pressure test pool 1 filled with clear water by virtue of the self gravity; the steel pipe 4 is filled with water gradually in the falling process; after reaching the baffle plate at the lower side of the inclined rail 6, the steel pipe 4 is transferred to a V-shaped bracket 7 above a lifting oil cylinder 8 by an oil cylinder driving type automatic pipe overturning mechanism; clamping and fixing the steel pipe 4 by using an oil cylinder driving type automatic clamping mechanism; sleeving the pressure testing heads 14 at two ends of the steel pipe 4 respectively by using an oil cylinder driving type moving trolley and sealing the end parts; the booster cylinder 15 penetrates a piston rod through the pressure testing head 14 and extends into the steel pipe 4 filled with water, so that the pressure in the steel pipe 4 is increased to a specified pressure value and is maintained for a specified time;
the piston rod is retracted by the pressurizing oil cylinder 15, and the pressure in the steel pipe 4 is automatically unloaded; the oil cylinder driving type moving trolley is used for withdrawing the pressure testing heads 14 at the two ends of the steel pipe 4; removing the steel pipe clamping; the lifting oil cylinder 8 lifts the steel pipe 4 to the position above the water surface by using the extended piston rod; transferring the steel pipe 4 to a discharging frame 9 by using an oil cylinder driving type automatic pipe overturning mechanism; and after the pressure test of the previous steel pipe 4 is finished, the lifting oil cylinder 8 returns the piston rod, the next steel pipe 4 filled with water starts to prepare for the pressure test, and the steps are repeated in such a circulating way. The hydraulic station provides hydraulic oil for the oil cylinder and is matched with the PLC control system to complete effective connection of a pressure test process.
In view of the fact that the oil cylinder driving type automatic clamping mechanism, the oil cylinder driving type automatic pipe overturning mechanism, the oil cylinder driving type moving trolley and the like are well described in related patents, the market products are mature, the market products are prior art, and the description of the patent is not repeated.
Claims (7)
1. The immersed steel tube still water pressure testing machine comprises a feeding frame, a discharging frame, a pressure testing head, an oil cylinder driving type automatic clamping mechanism, an oil cylinder driving type automatic pipe overturning mechanism, an oil cylinder driving type moving trolley, a hydraulic station, an automatic control system and a pressure testing device, and is characterized in that the pressure testing device comprises an inclined rail, a lifting oil cylinder, a pressurizing oil cylinder and a pressure testing pool filled with clear water; the feeding frame and the discharging frame are respectively arranged on two sides of the pressure testing pool; the lifting oil cylinder is arranged at the bottom of one side, close to the discharging frame, of the pressure testing pool, and a V-shaped bracket is arranged at the top of a piston rod of the lifting oil cylinder; the pressurizing oil cylinder is arranged on the side wall of the pressure test pool and is aligned with the lifting oil cylinder in the transverse direction; the lifting oil cylinder and the pressurizing oil cylinder are respectively connected with the hydraulic station through hydraulic oil pipes; the upper side of the inclined rail is connected with the feeding frame, and the lower side of the inclined rail is provided with a baffle and is close to the V-shaped bracket of the lifting oil cylinder; the oil cylinder driving type automatic clamping mechanism is arranged in the middle of a steel pipe to be tested in the pressure testing pool; the pressure testing head is in a cylindrical shape with an opening at the top, the inner diameter of the pressure testing head is matched with the outer diameter of the steel pipe, a through hole matched with the outer diameter of the piston rod of the booster oil cylinder is formed in the center of the bottom of the pressure testing head at one end of the steel pipe, and a through hole matched with the outer diameter of the high-pressure pipe is formed in the center of the bottom of the pressure testing head; the pressure testing head can move forward or backward under the driving of the oil cylinder driving type moving trolley, the pressure testing head is sleeved around the two ends of the steel pipe and seals the end parts when moving forward, and the pressure testing head is separated from the two ends of the steel pipe when moving backward; the oil cylinder driving type automatic pipe overturning mechanism is respectively arranged on the lower side of the inclined rail close to the pressure testing pool in the pressure testing pool and on one side of the discharging frame close to the pressure testing pool; the oil cylinder driving type automatic clamping mechanism, the oil cylinder driving type automatic pipe overturning mechanism and the oil cylinder driving type moving trolley are all connected with an automatic control system through a hydraulic station.
2. The immersed steel tube hydrostatic test machine according to claim 1, wherein the end seal is in the form of an end face seal, a radial seal, or an inner surface seal.
3. The immersed steel tube hydrostatic pressure test machine according to claim 2, wherein a radial sealing mode is adopted between a central through hole at the bottom of the pressure test head at one end of the steel tube and a piston rod of the booster cylinder.
4. The immersed steel tube hydrostatic pressure test machine according to claim 2 or 3, wherein the radial sealing mode is that an annular groove is arranged inside the pressure test head, and a sealing ring is arranged in the annular groove.
5. The immersed steel tube hydrostatic pressure test machine according to claim 4, wherein the inclined rail is of an upper-layer frame structure and a lower-layer frame structure, and only one steel tube can be accommodated between the upper layer and the lower layer.
6. The immersed steel tube hydrostatic pressure test machine according to claim 5, wherein the pipeline of the high-pressure tube is provided with a pressure sensor and a pressure regulating valve which are connected with an automatic control system.
7. The immersed steel tube hydrostatic pressure test machine according to claim 6, wherein the automatic control system adopts a PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922463190.1U CN211235311U (en) | 2019-12-31 | 2019-12-31 | Immersed steel pipe still water pressure tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922463190.1U CN211235311U (en) | 2019-12-31 | 2019-12-31 | Immersed steel pipe still water pressure tester |
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| Publication Number | Publication Date |
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| CN211235311U true CN211235311U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922463190.1U Expired - Fee Related CN211235311U (en) | 2019-12-31 | 2019-12-31 | Immersed steel pipe still water pressure tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211235311U (en) |
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2019
- 2019-12-31 CN CN201922463190.1U patent/CN211235311U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |