CN219888870U - Gate valve rod cooling structure of ultra-high temperature electric flat gate valve - Google Patents

Abstract

The utility model discloses a gate valve rod cooling structure of an ultra-high temperature electric flat gate valve, which relates to the field of valves and comprises a gate plate and a valve rod, wherein the gate plate comprises a main plate and a cover body, a cooling flow passage for cooling liquid circulation is arranged on the surface of the main plate matched with the cover body, and a first flow passage communicated with an inlet of the cooling flow passage, a second flow passage communicated with an outlet of the cooling flow passage, a liquid inlet communicated with the first flow passage and a liquid outlet communicated with the second flow passage are arranged in the valve rod. The utility model has the advantages of good cooling effect and long service life.

Description

Gate valve rod cooling structure of ultra-high temperature electric flat gate valve

Technical Field

The utility model relates to the field of valves, in particular to a flashboard valve rod cooling structure of an ultra-high temperature electric flat gate valve.

Background

In the novel steelmaking process, a hot gas valve is required to be installed in a hot gas system, the valve is an electric flat gate valve, the nominal diameter DN 1400 is adopted, a medium is hot mixed gas, the pressure is 0.6MPa, the temperature is 1300 ℃, the internal leakage is less than 1%, and the external leakage is zero. The valve body flow passage and the inner cavity of the valve are made of high-temperature-resistant lining materials, and are additionally protected by the cogongrass fixing nails and the tortoise shell net. The gate seat is inlaid on the valve body and is fixed, water is used for cooling, the structure is simpler, the most difficult is the gate plate and the valve rod, hot gas at 1300 ℃ is faced, and the gate seat moves up and down along with the valve switch, so that the defects of difficult cooling and short service life exist.

Disclosure of Invention

In order to overcome the defects of the background technology, the utility model provides the flashboard valve rod cooling structure of the ultra-high temperature electric flat gate valve, which has good cooling effect and long service life.

The utility model adopts the technical scheme that: the utility model provides an ultrahigh temperature electric flat gate valve's flashboard valve rod cooling structure, it includes flashboard and valve rod, the flashboard includes mainboard and lid, the mainboard is equipped with the cooling runner that supplies the coolant liquid circulation at the surface with lid complex, be equipped with in the valve rod with the import intercommunication of cooling runner first runner, with the export intercommunication of cooling runner second runner, with the inlet of first runner intercommunication and with the liquid outlet of second runner intercommunication.

Preferably, the valve rod comprises an inner tube and an outer tube which are coaxially arranged, a space exists between the inner tube and the outer tube, the space forms a second flow passage, and an inner hole of the inner tube forms a first flow passage.

Preferably, the cooling flow channels are curved and have a path extending over the surface of the main plate.

Preferably, the cover body and the main board are welded and fixed, welding holes distributed along the track of the cooling flow channel are formed in the cover body, and welding columns corresponding to the welding holes are arranged on the main board.

Preferably, a connecting seat for fixedly connecting the valve rod and the flashboard is arranged between the valve rod and the flashboard, the connecting seat is fixed on the flashboard through a pin, and the valve rod is in threaded fit with the connecting seat.

The beneficial effects of the utility model are as follows: according to the technical scheme, the cooling liquid enters the first flow passage through the liquid inlet and then enters the cooling flow passage in the flashboard, the flow path of the cooling liquid extends over the flashboard, the temperature of the flashboard and the temperature of the sealing surface are reduced through heat absorption of flowing water, and the normal switch and service life requirements are met.

Drawings

Fig. 1 is a schematic structural view of a cooling structure of a gate valve rod of an ultra-high temperature electric flat gate valve according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of a split structure of a gate valve rod cooling structure of the high-temperature electric flat gate valve.

Fig. 3 is a sectional view of a shutter valve stem cooling structure of the high temperature electric flat gate valve.

Detailed Description

Embodiments of the utility model are further described below with reference to the accompanying drawings:

as shown in the figure, the flashboard valve rod cooling structure of the ultra-high temperature electric flat gate valve comprises a flashboard and a valve rod, wherein the flashboard comprises a main board 1 and a cover body 2, the surface of the main board 1 matched with the cover body 2 is provided with a cooling flow channel 3 for cooling liquid to circulate, and a first flow channel 4 communicated with an inlet of the cooling flow channel 3, a second flow channel 5 communicated with an outlet of the cooling flow channel 3, a liquid inlet 6 communicated with the first flow channel 4 and a liquid outlet 7 communicated with the second flow channel 5 are arranged in the valve rod.

Preferably, the valve rod comprises an inner pipe 8 and an outer pipe 9 which are coaxially arranged, a space exists between the inner pipe 8 and the outer pipe 9, the space forms a second flow passage 5, an inner hole of the inner pipe 8 forms a first flow passage 4, the first flow passage and the second flow passage are not directly communicated, and the cooling liquid needs to flow to a cooling flow passage firstly.

Preferably, the cooling channels 3 are arranged in a curved manner and have paths extending over the surface of the main plate 1, as shown in fig. 2, and the cooling channels are meandering and extend over the surface of the shutter, so that the high temperature on the shutter can be effectively taken away.

Preferably, the cover body 2 and the main board 1 are welded and fixed, the cover body 2 is provided with welding holes 10 distributed along the track of the cooling flow channel 3, the main board is provided with welding columns 12 corresponding to the welding holes, and the main board and the cover body are welded by electric welding, so that a good fixing and anti-loosening effect is achieved.

Preferably, a connecting seat 11 for fixedly connecting the valve rod and the flashboard is arranged between the valve rod and the flashboard, the connecting seat 11 is fixed on the flashboard through a pin, and the valve rod is in threaded fit with the connecting seat 11 and is fixed through welding.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

The skilled person will know: while the utility model has been described in terms of the foregoing embodiments, the inventive concepts are not limited to the utility model, and any modifications that use the inventive concepts are intended to be within the scope of the appended claims.

Claims (5)

1. The utility model provides a flashboard valve rod cooling structure of super high temperature electric flat gate valve, its includes flashboard and valve rod, its characterized in that: the flashboard comprises a main board (1) and a cover body (2), wherein a cooling flow channel (3) for cooling liquid circulation is arranged on the surface of the main board (1) matched with the cover body (2), and a first flow channel (4) communicated with an inlet of the cooling flow channel (3), a second flow channel (5) communicated with an outlet of the cooling flow channel (3), a liquid inlet (6) communicated with the first flow channel (4) and a liquid outlet (7) communicated with the second flow channel (5) are arranged in the valve rod.

2. The gate valve stem cooling structure of the ultra-high temperature electric flat gate valve according to claim 1, wherein: the valve rod comprises an inner pipe (8) and an outer pipe (9) which are coaxially arranged, a space exists between the inner pipe (8) and the outer pipe (9) and forms a second flow passage (5), and an inner hole of the inner pipe (8) forms a first flow passage (4).

3. The gate valve stem cooling structure of the ultra-high temperature electric flat gate valve according to claim 1, wherein: the cooling flow channel (3) is arranged in a bending way and the path of the cooling flow channel extends over the surface of the main board (1).

4. The gate valve stem cooling structure of the ultra-high temperature electric flat gate valve according to claim 1, wherein: adopt welded fastening between lid (2) and mainboard (1), be equipped with on lid (2) along cooling runner (3) orbit distribution's welding hole (10), be equipped with on the mainboard with welding post (12) that correspond to the welding hole.

5. The gate valve stem cooling structure of the ultra-high temperature electric flat gate valve according to claim 1, wherein: the valve rod is fixedly connected with the flashboard through a connecting seat (11), the connecting seat (11) is fixed on the flashboard through a pin, and the valve rod is in threaded fit with the connecting seat (11).