TWM610662U - Combination valve - Google Patents

Abstract

The model relates to a combined valve, which comprises a valve main body, a first cut-off switch, a second cut-off switch, a third cut-off switch, a sewage plug, a first connection part and a second connection part. An air inlet channel and an air outlet channel are respectively opened inside the first connecting part and the second connecting part. The inlet channel and the outlet channel do not communicate. The first cut-off switch realizes communication with the intake passage through the first passage. The second cut-off switch realizes the communication with the first cut-off switch through the second channel, and simultaneously realizes the communication with the air outlet channel through the third channel. The third cut-off switch realizes the communication with the air outlet channel through the fourth channel, and realizes the communication with the sewage plug through the fifth channel. In this way, the combined valve has three functions of cut-off, blowdown and gas diversion, thereby effectively improving the convenience of construction. In addition, it also reduces the probability of leakage and reduces maintenance costs in the future.

Description

A combination valve

The new model relates to the technical field of valve manufacturing, in particular to a combined valve.

Figure 1 of the specification shows a schematic diagram of the structure of the combined valve, which is composed of a drain valve (as shown in Figures 2 and 3) and a shut-off valve (as shown in Figure 4) stacked in the up and down direction. Sewage blowdown and gas shunting. As a result, on the one hand, the combined valve itself is relatively large and requires a large installation space, which is inconvenient for piping design; on the other hand, in the actual installation process, the shut-off valve needs to be welded to the pipeline first, and then Positioning the blowdown valve relative to the shut-off valve, and finally using bolts to connect and fix, the operation process is more cumbersome, requires a long construction time, a lot of manpower is required in this process, and the purchase cost is high. In addition, the butt joint of the shut-off valve and the drain valve is sealed by the compression deformation of the sealing ring, which is prone to leakage after a period of operation, which increases the maintenance cost in the later period. Therefore, technical personnel are urgently required to solve the above-mentioned problems.

The technical problem to be solved by the new model is to provide a combined valve with simple structure design, stable and reliable operation, and effectively shortening the operation process flow in actual construction.

In order to solve the above technical problems, the present invention relates to a combined valve, which includes a valve main body, a first cut-off switch, a second cut-off switch, a third cut-off switch, a drain plug, a first connection part and a second connection part. The first connecting portion and the second connecting portion are respectively downward from the valve body, Stretched upward. An air intake passage extending along the axial direction is opened inside the first connecting portion. An air outlet channel extending along the axial direction is opened inside the second connecting part. The air inlet channel and the air outlet channel are isolated from each other and do not communicate with each other. The first cut-off switch, the second cut-off switch, the third cut-off switch and the drain plug are arranged around the side wall of the valve main body, wherein the first cut-off switch realizes the communication with the intake passage through the first passage. The second cut-off switch realizes the communication with the first cut-off switch through the second channel, and simultaneously realizes the communication with the air outlet channel through the third channel. The third cut-off switch realizes the communication with the air outlet channel through the fourth channel, and realizes the communication with the sewage plug through the fifth channel.

As a further improvement of the technical solution of the present invention, the first cut-off switch, the second cut-off switch, the third cut-off switch and the sewage plug are all connected to the valve body through a thread pair.

2。 As a further improvement of the new technical solution, the aperture of the air inlet channel is set to D1, and the aperture of the air outlet channel is set to D2, then D2/D1

2.

As a further improvement of the technical solution of the present invention, the third channel is arranged directly above the second channel and arranged in parallel with each other.

As a further improvement of the new technical solution, the valve body is a cube. The first cut-off switch, the second cut-off switch, the third cut-off switch and the sewage plug are respectively evenly distributed on the four side walls of the valve body.

As a further improvement of the new technical solution, a polytetrafluoroethylene coating is provided in the air inlet channel, the air outlet channel, the first channel, the second channel, the third channel, the fourth channel, and the fifth channel.

As a further improvement of the new technical solution, a taper pipe thread is provided on the sewage plug.

Compared with the combined valve with traditional design and structure, in the technical solution disclosed in the present invention, the shut-off valve and the sewage valve are integrated, and have three functions of cut-off, sewage and gas diversion, thereby effectively improving the construction efficiency. Convenience reduces the construction time. In addition, the sealing part between the original drain valve and the shut-off valve is also eliminated, which greatly reduces the probability of leakage and reduces subsequent maintenance costs.

1: Valve body

11: The first channel

12: Second channel

13: Third channel

14: Fourth channel

15: Fifth channel

2: The first cut-off switch

3: The second cut-off switch

4: The third cut-off switch

5: Drain plug

51: Taper pipe thread

6: The first connection part

61: intake channel

7: The second connecting part

71: Exhaust Channel

Figure 1 is a schematic diagram of the structure of a combined valve in the prior art.

Fig. 2 is a perspective cross-sectional view of the drain valve in the prior art combined valve.

Fig. 3 is another perspective cross-sectional view of the drain valve in the prior art combined valve.

Figure 4 is a cross-sectional view of a stop valve in a prior art combined valve.

Figure 5 is a front view of the combined valve of the present invention.

Fig. 6 is a cross-sectional view taken along the line A-A in Fig. 5.

Figure 7 is a top view of the combined valve of the present invention.

Fig. 8 is a cross-sectional view taken along the line B-B in Fig. 7.

Fig. 9 is a cross-sectional view taken along the line C-C in Fig. 7.

Figure 10 is a three-dimensional schematic diagram of the combined valve of the present invention.

Figure 11 is an exploded view of the combined valve of the present invention

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. Rather than indicating or implying that the device or element referred to must have characteristics The fixed position, the structure and operation in a specific position, therefore cannot be understood as a limitation of the present invention.

The following describes the content of the present invention in further detail with reference to specific embodiments. Figures 5 and 6 respectively show the front view of the combined valve in the present invention and its AA cross-sectional view, which are mainly composed of the valve body 1, the first cut-off switch 2. , The second cut-off switch 3, the third cut-off switch 4, the sewage plug 5, the first connecting portion 6 and the second connecting portion 7 are composed of several parts. Among them, the first connecting portion 6 and the second connecting portion 7 are formed by the valve body 1 extending downward and upward. An air intake passage 61 extending in the axial direction of the first connecting portion 6 is opened. An air outlet passage 71 extending in the axial direction of the second connecting portion 7 is opened. The inlet passage 61 and the outlet passage 71 are isolated from each other, and they do not communicate with each other. The first cut-off switch 2, the second cut-off switch 3, the third cut-off switch 4, and the drain plug 5 are arranged around the side wall of the valve body 1, wherein the first cut-off switch 2 is connected to the intake passage 61 through the first passage 11的连接。 Connectivity. The second cut-off switch 3 realizes the communication with the first cut-off switch 2 through the second channel 12, and it realizes the communication with the air outlet channel 71 through the third channel 13 at the same time. The third cut-off switch 4 realizes the communication with the air outlet channel 71 through the fourth channel 14, and it realizes the communication with the sewage plug 5 through the fifth channel 15 (as shown in Figs. 7, 8, 9). In this way, the combined valve has three functions of cut-off, blow-off and gas diversion, which effectively improves the convenience of construction, greatly saves construction time, and reduces the expenditure for purchasing blow-off valves and shut-off valves at the same time. cost. In addition, the sealing part between the original drain valve and the shut-off valve is also eliminated, which greatly reduces the probability of leakage and reduces subsequent maintenance costs.

Furthermore, as a further optimization of the above-mentioned combination valve, the third channel 13 is preferably arranged directly above the second channel 12 and arranged in parallel to each other (as shown in Figs. 7 and 9). In addition, the valve body 1 is preferably a cubic shape. The first cut-off switch 2, the second cut-off switch 3, the third cut-off switch 4 and the drain plug 5 are respectively evenly distributed on the four side walls of the valve body 1 (as shown in FIG. 6). By adopting The above-mentioned technical solution is set, which is more conducive to the structural design optimization of the valve main body 1, reduces the thickness of the valve main body 1 as much as possible, and effectively reduces the processing difficulty.

Furthermore, in consideration of improving assembly efficiency, reducing manufacturing and processing costs, and the convenience of later maintenance, the first cut-off switch 2, the second cut-off switch 3, the third cut-off switch 4, and the sewage plug 5 are preferably threaded The auxiliary realizes the connection with the valve body 1 (as shown in Fig. 6).

2，從而提高氣體在閥主體1內流通的順暢性，且提高了後續排汙過程的徹底性(如圖7、8中所示)。 Furthermore, the aperture of the inlet passage 61 is assumed to be D1, and the aperture of the outlet passage 71 is assumed to be D2, then D2/D1

2, thereby improving the smoothness of the gas flow in the valve body 1, and improving the thoroughness of the subsequent drainage process (as shown in Figures 7 and 8).

It is known that in the actual operation process, gas (especially high-temperature and high-pressure gas) will inevitably cause corrosion to the circulation channel of the combined valve, thereby affecting its normal operation, and will also affect the mixing of impurities in the gas, which is extremely easy Block the valves or pipes of the rear passage. For this reason, the air inlet passage 61, the outlet passage 71, the first passage 11, the second passage 12, the third passage 13, the fourth passage 14 and the fifth passage 15 can also be blocked. A polytetrafluoroethylene coating (not shown in the figure) is provided inside.

Finally, in order to ensure the sealing performance of the connection between the drain plug 5 and the valve body 1, the external thread provided on the outer side wall of the drain plug 5 can also be set to 55° or 60° tapered pipe sealing thread 51 (such as Shown in Figure 6).

In order to facilitate those skilled in the art to fully understand the technical solutions disclosed in the above-mentioned invention, Fig. 10 and Fig. 11 respectively show a three-dimensional schematic diagram and an exploded view of the combined valve in the invention.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the present invention. Various modifications to these embodiments are important to those skilled in the art It will be obvious that the general principles defined in this document can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown in this article, but should conform to the widest scope consistent with the principles and novel features disclosed in this article.

11: The first channel

12: Second channel

14: Fourth channel

15: Fifth channel

2: The first cut-off switch

3: The second cut-off switch

4: The third cut-off switch

5: Drain plug

51: Taper pipe thread

Claims (7)

A combined valve comprising a valve body, a first cut-off switch, a second cut-off switch, a third cut-off switch, a sewage plug, a first connection part and a second connection part; the first connection part and the second connection The part is formed by the valve body extending downwards and upwards; the inside of the first connecting part is provided with an air inlet passage extending along its axial direction; the inside of the second connecting part is provided with an air inlet along the The air outlet passage extending in the axial direction; the air inlet passage and the air outlet passage are isolated from each other and do not communicate with each other; the first cut-off switch, the second cut-off switch, the third cut-off switch, and the sewage The screw plug is arranged around the side wall of the valve body, wherein the first cut-off switch realizes the communication with the intake passage through the first passage; the second cut-off switch realizes the communication with the first passage through the second passage. The cut-off switch realizes the communication with the outlet channel at the same time through the third channel; the third cut-off switch realizes the communication with the outlet channel through the fourth channel, and it realizes the communication with the outlet channel through the fifth channel. The connection of the drain plug. In the combined valve according to claim 1, the first cut-off switch, the second cut-off switch, the third cut-off switch and the sewage plug are all connected to the valve body through a thread pair. For the combined valve described in claim 1, the aperture of the air inlet channel is set to D1, and the aperture of the air outlet channel is set to D2, then D2/D1

2. According to the combination valve according to claim 1, the third passage is arranged directly above the second passage and arranged in parallel with each other. According to the combination valve of claim 1, the valve body is a cube; the first cut-off switch, the second cut-off switch, the third cut-off switch, and the sewage plug are evenly distributed on the On the four side walls of the valve body. The combination valve according to any one of claims 1-5, in the intake passage, the outlet passage, the first passage, the second passage, the third passage, and the fourth The channel and the fifth channel are provided with a polytetrafluoroethylene coating. According to the combined valve according to any one of claims 1-5, a taper pipe thread is provided on the sewage plug.

Images