CN211820853U

CN211820853U - Novel four-way quick reversing valve

Info

Publication number: CN211820853U
Application number: CN201922476473.XU
Authority: CN
Inventors: 黄志彬; 黄志鹏; 黄华龙
Original assignee: Hunan Jiayi Electric Power Technology Development Co ltd
Current assignee: Hunan Jiayi Electric Power Technology Development Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-30
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a novel four-way quick reversing valve, including valve body, valve gap, valve rod, case and executor, valve body upper portion is equipped with the valve gap, the inside valve rod that is equipped with of valve body, the valve rod periphery is equipped with the case, and valve rod and case structure as an organic whole still include disk seat, pendulum leaf, rubber pad, clamp plate, the outer four terminal surface openings of valve body, and be equipped with the flange on the terminal surface opening, it is adjacent be equipped with mutually perpendicular's disk seat between the flange, the disk seat with case fixed connection, the inside pendulum leaf of wearing to be equipped with of case, pendulum leaf both sides pass through the bolt in proper order with rubber pad, clamp plate fixed connection, the valve gap is worn out on case upper portion and is. The utility model has simple structure and low cost; the operation time is short, the flow is large, and the production efficiency is improved.

Description

Novel four-way quick reversing valve

Technical Field

The utility model belongs to the technical field of the switching-over valve technique and specifically relates to novel four-way quick switching-over valve.

Background

In a gas system, an electric power industry and a coal chemical industry of an industrial furnace, soot generated by combustion of the industrial furnace is re-melted for combustion, the cost and the energy consumption of the reversing valve need to be reduced, the sealing performance is not damaged under the high-temperature working condition, most of the existing stages are three-way reversing valves, the energy consumption of the series of reversing valves is high, the sealing performance is easy to lose efficacy under the high-temperature working condition, the flow is small, and the valve core runs stably and is blocked.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a novel four-way quick reversing valve.

The technical scheme of the utility model is that: novel four-way quick reversing valve, including valve body, valve gap, case and executor, valve body upper portion is equipped with the valve gap, the inside case that is equipped with of valve body, the case includes valve rod and valve disc, and the valve rod lower extreme is located to the valve disc and is connected with valve body inner chamber bottom, still includes disk seat, pendulum leaf, rubber pad, clamp plate, the outer four terminal surface openings of valve body, and be equipped with the flange on the terminal surface opening, it is adjacent be equipped with mutually perpendicular's disk seat between the flange, the disk seat with case fixed connection, the pendulum leaf is worn to be equipped with inside the case, the pendulum leaf both sides pass through the bolt in proper order with rubber pad, clamp plate fixed connection, the valve gap is worn out.

Preferably, the valve core is welded with the swing blade.

Preferably, the upper part of the valve body is fixedly connected with the valve cover through a bolt.

Preferably, the valve seat is a hard sealing surface.

Preferably, the valve seat is rectangular in cross-section.

Preferably, two ends of the bracket are respectively in threaded connection with the valve core and the actuator.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the structure is simple, the cost is low, the production process is simplified, and the production efficiency is improved;

(2) the structure of the utility model is an angular travel, the sealing surface of the valve seat is hard sealing, the hard sealing can ensure that the sealing performance is intact at high temperature, and the sealing can be realized under the working environment of 300 ℃; the angular stroke can scrape impurities contained in the medium along the inner wall of the valve body, so that the sealing surface is protected from being injured;

(3) in the valve body, the outer part of the valve core is oppositely provided with a hard sealing surface of the valve seat, and the symmetrical structure can solve the problem that the valve cavity of the valve body deforms and expands with heat and contracts with cold uniformly in each direction under the high-temperature working condition, thereby protecting the flatness of the surface of the valve seat; the periphery of the outer part of the valve body is provided with a flange, and the structure is designed symmetrically; the valve seat guide structure is added, so that the problem that the valve seat deforms under the high-temperature working condition, expands with heat and contracts with cold uniformly in each direction is solved, and the flatness of the surface of the valve seat is protected; the valve seat sealing surface and the valve cavity connecting surface are increased, so that the deformation uniformity of the valve cavity under the high-temperature working condition of the valve cavity is ensured, and the problem that the valve core runs stably and is not blocked under the high-temperature working condition is solved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a perspective sectional view of the present invention.

Fig. 4 is a perspective view of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1 to 4, the novel four-way quick reversing valve comprises a valve body 1, a valve core 2, a valve disc 2.1, a valve rod 2.2, a valve cover 10, a flange 4, a valve seat 5, a swing blade 6, a rubber pad 7, a pressing plate 8, a bolt 9, a valve cover 10, a support 11 and an actuator 12.

The upper part of the valve body 1 is provided with a valve cover 10, the valve core 2 is arranged in the valve body 1, the valve core 2 comprises a valve rod 2.2 and a valve disc 2.1, the valve disc 2.1 is arranged at the lower end of the valve rod 2.2 and is connected with the bottom of the inner cavity of the valve body 1, the outer four end surfaces of the valve body 1 are provided with openings, and the end surface openings are provided with flanges 4 and are designed in a symmetrical structure; valve seats 5 which are perpendicular to each other are arranged between the adjacent flanges 4, and the valve seats 5 are fixedly connected with the valve core 2.

The valve core 2 is internally provided with a swing blade 6 in a penetrating way and fixed by welding, and two sides of the swing blade 6 are fixedly connected with a rubber pad 7 and a pressing plate 8 in sequence through bolts 9.

The upper part of the valve core 2 penetrates through the valve cover 10 and is connected with the actuator 12 through the support 11, the valve core 2 is fixedly connected with the valve cover 10 through the bolt 9, and two ends of the support 11 are respectively in threaded connection with the valve core 2 and the actuator 12.

The valve core 2 is externally and fixedly provided with a valve seat 5 which is opposite to the valve seat 5, the surface of the valve seat 5 is coated with surfacing hard alloy as a hard sealing surface, the hard sealing can ensure that the sealing performance is good at high temperature, the sealing can be realized in a 300 ℃ working environment, and the symmetrical structure can ensure that the valve cavity of the valve body 1 deforms and expands with heat and contracts with cold uniformly in each direction under the high-temperature working condition, so that the flatness of the surface of the valve seat 5 is protected; a guide structure of the valve seat 5 is also added, so that the problem that the valve seat 5 deforms under the high-temperature working condition, expands with heat and contracts with cold uniformly in each direction is solved, and the flatness of the surface of the valve seat 5 is protected; the sealing surface of the valve seat 5 and the valve cavity joint surface are increased to ensure the deformation uniformity of the valve cavity under the high-temperature working condition of the valve cavity, and the problem that the valve core 2 runs stably and is not blocked under the high-temperature working condition is solved.

The working principle is as follows: as shown in figure 1, the ports 3.1, 3.2, 3.3 and 3.4 which are communicated with the flange 4 on the four upper end surfaces of the valve body 1, high-temperature air flow enters from the port 3.1, the port 3.3 and the port 3.4 are blocked by the combination plate of the swing blade 6, the rubber pad 7 and the pressing plate 8, the air flow can only be output through the port 3.2, the remote control actuator 12 drives the valve core 2 to rotate 90 degrees, at this time, the port 3.1 and the port 3.4 are respectively communicated with the port 3.2 and the port 3.3, cold air is sent from the port 3.1 to the port 3.4, and meanwhile, the port 3.2 high-temperature air flow sends to the port 3.. Therefore, the purpose of stabilizing the airflow is achieved.

The utility model discloses a product has good market perspective, has used: (1) 1780 furnace improvement project of Liuzhou Steel works Limited; (2) 2250 hot-rolled industrial furnace modification project of lake south China water chestnut ripple iron and steel company Limited.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the right of the present invention should not be limited thereby, and therefore, modifications, equivalent changes, improvements, etc. made in the claims of the present invention are still included in the scope of the present invention.

Claims

1. Novel four-way quick reversing valve, including valve body, valve gap, case and executor, valve body upper portion is equipped with the valve gap, the inside case that is equipped with of valve body, the case includes valve rod and valve disc, and the valve rod lower extreme is located to the valve disc and is connected its characterized in that bottom the valve body inner chamber: the valve comprises a valve body and is characterized by further comprising valve seats, swing blades, rubber pads and pressing plates, four end faces of the valve body are provided with openings, flanges are arranged on the openings, the valve seats which are perpendicular to each other are arranged between every two adjacent flanges, the valve seats are fixedly connected with the valve core, the swing blades penetrate through the valve core, two sides of each swing blade are fixedly connected with the rubber pads and the pressing plates in sequence through bolts, and the upper portion of the valve core penetrates out of a valve cover and is connected with an actuator through a support.

2. The novel four-way quick reversing valve of claim 1, wherein: the valve core is connected with the swing blade in a welding mode.

3. The novel four-way quick reversing valve of claim 1, wherein: the upper part of the valve body is fixedly connected with the valve cover through a bolt.

4. The novel four-way quick reversing valve of claim 1, wherein: the surface of the valve seat is coated with surfacing hard alloy.

5. The novel four-way quick reversing valve according to claim 1 or 4, characterized in that: the cross section of the valve seat is rectangular.

6. The novel four-way quick reversing valve of claim 1, wherein: and two ends of the bracket are respectively in threaded connection with the valve core and the actuator.