CN212206553U - Sealing device for hydraulic pressure and pressure test of casting blank of cast silicon-aluminum heat exchanger - Google Patents
Sealing device for hydraulic pressure and pressure test of casting blank of cast silicon-aluminum heat exchanger Download PDFInfo
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- CN212206553U CN212206553U CN201921765690.4U CN201921765690U CN212206553U CN 212206553 U CN212206553 U CN 212206553U CN 201921765690 U CN201921765690 U CN 201921765690U CN 212206553 U CN212206553 U CN 212206553U
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Abstract
The utility model provides a cast silicon aluminum heat exchanger foundry goods blank hydrostatic pressure withstand test sealing device belongs to the pressure test and detects frock technical field. The device comprises a water injection port locking frame and a plurality of blank hole sealing plugs. The blank hole sealing plug consists of a bolt, an elastic rubber sealing ring, a compression sleeve and a nut, and the elastic rubber sealing ring is pushed and pressed by screwing the nut to deform and expand the elastic rubber sealing ring so as to seal the blank hole; the water inlet hole is plugged by screwing the water filling port locking frame to jack the bolt. After the sealing and water injection of the blank casting are finished, a pressure test can be carried out. The utility model discloses the device is simple, and the simple operation has solved the foundry goods blank stage and has been difficult to seal the problem that carries out the hydrostatic pressure withstand test, has realized the examination of the unqualified waste product spare that the blank foundry goods is withstand voltage, has avoided the waste that this type of waste product spare subsequence processing caused, practices thrift manufacturing cost.
Description
Technical Field
The utility model relates to a pressure vessel foundry goods blank hydrostatic pressure withstand test sealing device especially is used for the hydrostatic pressure withstand test of cast silicon-aluminum heat exchanger foundry goods blank, belongs to the pressure test and detects frock technical field.
Background
The gas heat exchanger product is a substitute product of national coal-to-gas and coal-fired boilers, and the cast silicon-aluminum heat exchanger is an important part in a gas heating system, belongs to a pressure vessel and requires a casting product to perform a hydraulic pressure withstand test. The cast silicon-aluminum heat exchanger casting is internally provided with a water channel, a plurality of casting process sand outlets are reserved on the outer side of the water channel, the structure is complex, the wall is thin, the forming process difficulty is high, and the rejection rate is high during casting production. Because the process sand outlet is difficult to seal at the blank hole casting stage, the casting pressure resistance test is carried out after all processing procedures are completed, namely, the process hole needs to be threaded or beveled, and is sealed in a bolt pre-tightening sealing or welding plugging mode, once pressure test leakage is abandoned, all processing and welding processes except casting are in vain, and loss is large.
Disclosure of Invention
In order to solve the problem, the utility model provides a cast silicon aluminum heat exchanger foundry goods blank hydrostatic pressure withstand test sealing device for the unqualified waste product spare of the withstand voltage of foundry goods blank stage is examined out, avoids the waste that this kind of waste product spare sequent processing caused.
The utility model provides a technical method that technical problem adopted: the sealing device for the hydraulic pressure withstand test of the cast silicon-aluminum heat exchanger casting blank comprises a water injection port locking frame 1 and a plurality of blank hole sealing plugs 2. The water filling port locking frame 1 is formed by welding a bottom plate 12, a side plate 9 and a jacking side plate 13, wherein the side plate 9 is provided with a through hole, a welding fixing sleeve 10 and the jacking side plate 13 are provided with threaded holes, a jacking bolt 14 is installed, and the tail end structure of the jacking bolt 14 is arc-shaped. The water injection pipe 8 is arranged in the sleeve 10, and the water outlet end of the water injection pipe is provided with a rubber sealing ring 11. The blank hole sealing plug 2 is formed by assembling an elastic rubber sealing ring 4, a pressing sleeve 5, a nut 6 and a bolt 7.
During a hydraulic pressure-resistant test, the plurality of blank hole sealing plugs 2 are placed in blank holes of cast silicon-aluminum heat exchanger casting blanks, the nuts 6 are screwed, and the elastic rubber sealing rings 4 are deformed and expanded by the compression sleeves 5 to realize the sealing of the blank holes. And (3) inserting the water injection pipe 8 into the water inlet of the cast silicon-aluminum heat exchanger casting, and screwing the puller bolt 14 to realize the plugging of the water inlet. After the water is filled, a pressure resistance test can be performed.
The utility model has the advantages that: the utility model discloses the device is simple, and the simple operation has solved the foundry goods blank stage and has been difficult to seal the problem that carries out the hydrostatic pressure withstand test, has realized the examination of the unqualified waste product spare that the blank foundry goods is withstand voltage, has avoided the waste that this type of waste product spare subsequence processing caused, practices thrift manufacturing cost.
Drawings
The present invention will be further explained with reference to the drawings and the embodiments.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a water injection port locking frame of the hydraulic pressure withstanding test device;
FIG. 3 is an enlarged schematic view of a blank hole sealing plug structure of the hydrostatic pressure test device;
3 FIG. 3 4 3 is 3 a 3 partially 3 enlarged 3 sectional 3 view 3 of 3 the 3 blank 3 hole 3 sealing 3 plug 3 in 3 section 3 A 3- 3 A 3. 3
In the figure: the method comprises the following steps of 1-water filling port locking frame, 2-blank hole sealing plug, 3-cast silicon-aluminum heat exchanger casting blank, 4-elastic rubber sealing ring, 5-pressing sleeve, 6-nut, 7-bolt, 8-water filling pipe, 9-side plate, 10-sleeve, 11-rubber sealing ring, 12-bottom plate, 13-tightening side plate and 14-tightening bolt.
Detailed Description
As shown in figure 1, the sealing device for the hydraulic pressure and pressure test of the cast silicon-aluminum heat exchanger casting blank comprises a water injection port locking frame and a plurality of blank hole sealing plugs. Before a pressure test is carried out, all blank holes are sealed and plugged into the process holes of the casting blank, a hole is reserved and not sealed for water injection and exhaust, and the rest of the holes are screwed with nuts, so that the compressing sleeve pushes and presses the elastic rubber sealing ring to deform and expand, and the blank holes are sealed.
And placing the cast silicon-aluminum heat exchanger casting blank on a water injection port locking frame, inserting a water injection pipe into a water inlet hole of the cast silicon-aluminum heat exchanger casting, and screwing a puller bolt to extrude a rubber sealing ring to realize the plugging of the water inlet hole. And (5) starting water injection, screwing the seal plug of the preformed hole after the water injection, and performing a pressure test.
As shown in fig. 2, the end structure of the puller bolt 14 on the water filling opening locking frame is designed to be arc-shaped so as to prevent the casting from being damaged by jacking.
As shown in fig. 3 and 4, the blank hole sealing plug realizes the sealing of the casting fabrication hole by screwing the nut to enable the pressing sleeve to push and press the elastic rubber sealing ring, the elastic rubber sealing ring deforms and expands, and the blank hole sealing plug can be disassembled and replaced by the elastic rubber sealing ring when the blank hole sealing plug is repeatedly used for a plurality of times and is damaged to influence the sealing effect.
Claims (1)
1. The sealing device for the hydraulic pressure and pressure test of the casting blank of the cast silicon-aluminum heat exchanger is characterized in that: including water filling port locking frame (1), blank hole seal stifled (2) a plurality of: the water injection port locking frame (1) is formed by welding a bottom plate (12), a side plate (9) and a tightening side plate (13), the side plate (9) is provided with a through hole, a sleeve (10) is welded and fixed, the tightening side plate (13) is provided with a threaded hole, a tightening bolt (14) is installed, the tail end structure of the tightening bolt (14) is arc-shaped, a water injection pipe (8) is installed in the sleeve (10), a rubber sealing ring (11) is installed at the water outlet end of the sleeve, and a blank hole sealing plug (2) is formed by assembling an elastic rubber sealing ring (4), a pressing sleeve (5), a nut (6) and a bolt (7); the assembly relation of the water injection port locking frame (1), the blank hole sealing plug (2) and the sealed element cast silicon-aluminum heat exchanger casting blank piece is as follows: one side of the water inlet hole end of the casting is placed in the water injection hole locking frame (1), the top end of the puller bolt (14) is attached to the casting, the water injection pipe (8) is inserted into the water inlet hole of the casting and used for sealing the water inlet hole and injecting water, and the blank hole sealing plug (2) is inserted into other blank holes of the casting and used for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765690.4U CN212206553U (en) | 2019-10-21 | 2019-10-21 | Sealing device for hydraulic pressure and pressure test of casting blank of cast silicon-aluminum heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765690.4U CN212206553U (en) | 2019-10-21 | 2019-10-21 | Sealing device for hydraulic pressure and pressure test of casting blank of cast silicon-aluminum heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212206553U true CN212206553U (en) | 2020-12-22 |
Family
ID=73806063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921765690.4U Active CN212206553U (en) | 2019-10-21 | 2019-10-21 | Sealing device for hydraulic pressure and pressure test of casting blank of cast silicon-aluminum heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212206553U (en) |
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2019
- 2019-10-21 CN CN201921765690.4U patent/CN212206553U/en active Active
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