Butt welding type heat-insulating jacket angle valve
Technical Field
The utility model relates to the field of production and detection of butt welding type heat-insulating jacket angle valves, in particular to a butt welding type heat-insulating jacket angle valve.
Background
In the prior art, a pressing detection test is needed before the valve of the regulating valve is installed, namely, the valve body and the valve cover are subjected to strong pressure test by 1.5 times of nominal pressure, and the bearing capacity of the shell is checked. The valve pressing test is an important technical index for checking the valve quality. And after the pressing is qualified, the assembly can be carried out in the next step. And the valve gas tightness and leakage quantity are required to be tested during the assembly of the whole machine. In a general valve gas sealing experiment, a set of matched flange blind plates corresponding to a valve body flange is required to be manufactured, the flange blind plates are fastened through bolts and nuts of a peripheral ring, and a sealing gasket is clamped to realize a pressing test. The butt welding type valve needs an external flange of the valve body to test pressure. The valve body with the heat-insulating jacket assembly also needs to test the pressure of the jacket successfully. However, for the butt welding type heat preservation jacket angle valve, the valve body is of a butt welding type structure, the wall thickness of an inlet and an outlet is required to be thinner, threads cannot be turned, the inlet and the outlet of a valve body runner are in a 90-degree state, the heat preservation jacket assembly is of a butt welding type structure, and the conventional method for fastening a pair of external flanges cannot realize the pressing test.
Therefore, how to perform a pressing test on the butt welding type heat insulation jacket angle valve is a technological problem which we have to solve.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of utility model
In order to solve the technical problems, the utility model provides a butt welding type heat preservation jacket angle valve, so as to achieve the purposes of meeting the pressure test of a valve body, being capable of non-destructive inspection and inspection of the welding quality of a jacket assembly, meeting the detection requirements of the gas tightness and leakage quantity of the whole machine and reducing the working strength of workers.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
The utility model provides a butt welding type heat preservation presss from both sides cover angle valve, includes the valve body, sets up the area silk supporting ring on the lateral wall of feed end department of valve body, sets up the feed end of valve body and with the feed end matched with of valve body is suppressed the blind plate, with the blind plate matched with is suppressed the blind plate dustcoat and is set up the heat preservation clamp external member in the valve body outside, the blind plate of suppressing pass through full thread double-screw bolt with area silk supporting ring is connected, the last air inlet of having seted up of blind plate of suppressing.
According to the utility model, the threaded support ring is arranged on the side wall of the valve body, so that when the valve body is subjected to a strong pressure test, the full-thread stud is screwed into the support plate through the pressing blind plate, the pressing test can be performed by pressing the nut, the jacket is provided with the air inlet flange to test the pressure, the support ring is not required to be disassembled and welded on the inner ring of the jacket, the subsequent welding of the jacket, the pressure test of the jacket and the gas tightness and leakage test of the whole machine are not hindered while the appearance is not influenced, the valve body is not damaged, and the valve body can be used as an internal part structure of the valve body and is equivalent to an embedded flange; the aims of meeting the pressure test of the valve body, nondestructive testing of the welding quality of the jacket assembly, meeting the detection requirements of the gas tightness and leakage quantity of the whole machine and reducing the working strength of workers are fulfilled.
Preferably, a first sealing gasket is arranged between the valve body and the pressing blind plate, a second sealing gasket is arranged between the heat preservation clamping set and the pressing blind plate, and an O-shaped sealing ring is arranged between the pressing blind plate and the pressing blind plate outer cover.
Preferably, the valve body comprises a vertical part and a horizontal part arranged on the vertical part;
The bottom side wall of the vertical part and the end side wall of the horizontal part of the valve body are both provided with the wire supporting rings.
The utility model has the following advantages:
1. According to the utility model, the threaded support ring is arranged on the side wall of the valve body, so that when the valve body is subjected to a strong pressure test, the full-thread stud is screwed into the support plate through the pressing blind plate, the pressing test can be performed by pressing the nut, the jacket is provided with the air inlet flange to test the pressure, the support ring is not required to be disassembled and welded on the inner ring of the jacket, the subsequent jacket welding, pressure test on the jacket, gas tightness and leakage test of the whole machine are not hindered while the appearance is not influenced, the valve body is not damaged, and the valve body can be used as an internal part structure of the valve body and is equivalent to an embedded flange; the aims of meeting the pressure test of the valve body, nondestructive testing of the welding quality of the jacket assembly, meeting the detection requirements of the gas tightness and leakage quantity of the whole machine and reducing the working strength of workers are fulfilled.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic diagram of a structure of a butt welding type thermal insulation jacket angle valve body in a pressure test according to an embodiment of the present utility model;
Fig. 2 is a schematic structural diagram of a butt welding type thermal insulation jacket corner valve according to an embodiment of the present utility model during detection;
Fig. 3 is a schematic structural diagram of a butt welding type insulation jacket angle valve in detecting tightness of the whole machine according to an embodiment of the present utility model;
corresponding part names are indicated by numerals and letters in the drawings:
1. Valve body 2, support ring with wires 3, pressing blind plate 31, air inlet 4, and cover of the pressing blind plate
5. The heat preservation clamping member 61, the first sealing gasket 62, the second sealing gasket 63, the O-shaped sealing ring 7 and the full-thread stud.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
The utility model provides a butt welding type heat preservation jacket angle valve, which has the working principle that the side wall of a valve body is provided with a wire supporting ring, and the detection is gradually carried out under the action of the wire supporting ring, so that the aims of meeting the pressure test of the valve body, being capable of carrying out nondestructive inspection on the welding quality of a jacket assembly, meeting the detection requirements of the gas tightness and leakage quantity of the whole machine and reducing the working strength of staff are fulfilled.
The present utility model will be described in further detail with reference to examples and embodiments.
As shown in fig. 1-3, a butt welding type heat insulation jacket angle valve comprises a valve body 1, a wire supporting ring 2 arranged on the side wall of the bottom end of the vertical part of the valve body and the feeding end of the horizontal part end part of the valve body, a pressing blind plate 3 arranged at the feeding end of the valve body and matched with the feeding end of the valve body, a pressing blind plate outer cover 4 matched with the pressing blind plate and a heat insulation jacket piece 5 arranged at the outer side of the valve body, wherein the pressing blind plate is connected with the wire supporting ring through a full-thread stud 7, an air inlet 31 is formed in the pressing blind plate, and the heat insulation jacket piece is connected with the wire supporting ring through welding.
The valve body with be equipped with first sealed pad 61 between the blind plate of pressing, the heat preservation clamp external member with press and be equipped with the second sealed pad 62 between the blind plate, press the blind plate with press and be equipped with O type sealing washer 63 between the blind plate dustcoat.
The specific using steps of the utility model are as follows: in the production test process, the fixing band wire support ring 2 is welded on the outer ring of the valve body 1, and when the valve body is subjected to the strong pressure test, the pressing blind plate 3 is pressed in after the first sealing gasket 61 is installed, the full-thread stud penetrates through the pressing blind plate to be screwed into the support plate, and the pressing test can be performed by pressing with the nut (shown in fig. 1).
After the pressure test of the valve body shell is successful, the outer ring of the valve body is welded by a heat-insulating jacket, after the butt welding end face of the jacket is processed to the required size, a second sealing gasket 62 is additionally arranged at the inner spigot of the pressing blind plate to seal the butt welding end face of the jacket, an O-shaped sealing ring 63 is arranged in the end face groove of the pressing blind plate, the sealing ring is screwed into the pressing blind plate outer cover 4 to seal the inner cavity of the heat-insulating jacket after the sealing ring penetrates through a full-thread stud nut to be fastened like the pressing of the valve body, and the pressure test of the jacket is carried out through an air inlet flange of the heat-insulating jacket (shown in figure 2).
After the valve body and the heat preservation jacket component are pressed and detected to be qualified, the whole valve body component can be ensured to achieve the performance and the requirement of use. After the whole machine is assembled, the air tightness and leakage quantity of the whole machine are tested. After the first sealing gasket 61 is installed, the pressing blind plate is pressed in, the full-thread stud penetrates through the pressing blind plate to be screwed into the supporting plate, and the nut is used for pressing. And pressing the valve body, and observing the tightness and leakage quantity of the filling end.
The support ring is not required to be disassembled and welded on the inner ring of the jacket, so that the subsequent jacket welding, jacket pressure test, complete machine gas tightness and leakage test are not hindered while the appearance is not influenced, the valve body is not damaged, and the support ring can be used as an internal part structure of the valve body and is equivalent to an embedded flange.
The utility model can solve the problem that the butt welding type heat preservation jacket angle valve cannot be pressed, and the welding of the embedded support ring with wires as an inscription flange does not need to be disassembled, thereby saving labor. The appearance structure of the valve body is not affected, medium in the inner cavity of the jacket circulates, and one set of the jacket can meet different requirements. Compared with other pressing tools, the pressing tool is simple in structure, can be used repeatedly, and reduces cost. The nondestructive inspection process is reduced, and the resources are saved. The quality of the valve body and the heat preservation jacket assembly is ensured. The sealing device has the advantages that the wire supporting ring is directly welded in the jacket, the sealing gasket is filled in the sealing groove through the pressing blind plate, the sealing device is simple in structure, one set of pressing tool meets different requirements, and the material cost is reduced. And the external flange connection is not needed, so that the operation is more convenient, and the labor cost is reduced. The tooling equipment is simple in structure, low in cost and high in efficiency.
Through the mode, the butt welding type heat preservation jacket angle valve provided by the utility model has the advantages that the side wall of the valve body is provided with the wire supporting ring, and the detection is gradually carried out under the action of the wire supporting ring, so that the aims of meeting the pressure test of the valve body, meeting the welding quality of a jacket assembly for nondestructive inspection, meeting the detection requirements of the gas tightness and leakage quantity of the whole machine and reducing the working strength of staff are fulfilled.
While the utility model has been described with respect to a preferred embodiment of a butt weld insulating jacket angle valve, it should be noted that variations and modifications can be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present utility model.