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CN-224229284-U - Corrosion-resistant valve seat resistant to strong acid and strong alkali

CN224229284UCN 224229284 UCN224229284 UCN 224229284UCN-224229284-U

Abstract

The utility model discloses a corrosion-resistant valve seat resistant to strong acid and strong alkali, which comprises a valve seat disc, wherein the valve seat disc comprises a threaded column fixedly arranged at the bottom, the threaded column is in threaded connection with the inner wall of a valve body, a valve core plate is arranged above the valve seat disc in an attached mode, four guide plates are fixedly arranged at the bottom of the valve core plate, the guide plates are arranged in the valve seat disc, a sealing gasket is fixedly arranged at the bottom of the valve core plate, an elastic sealing ring is arranged in the valve seat disc, the sealing gasket is the same with the elastic sealing ring in size, the upper end of the valve core plate is fixedly connected with a valve rod mounting seat, the upper end of the valve rod mounting seat is fixedly connected with a valve rod body, a notch is formed in the valve seat disc, the valve core plate is matched with the notch, a sealing groove is formed in the inner side of the notch, and the elastic sealing ring is fixedly arranged in the sealing groove, so that accurate alignment of a valve core and a valve seat can be realized, and the sealing effect of the valve seat can be improved.

Inventors

  • ZHU LIJUN
  • ZHOU HUAN
  • SUN QIMENG
  • ZHANG YALING
  • XIA XUE

Assignees

  • 无锡市千柏材料科技有限责任公司

Dates

Publication Date
20260512
Application Date
20250620

Claims (6)

  1. 1. The utility model provides a corrosion-resistant disk seat of strong acid and alkali resistant, its characterized in that, including valve seat dish (1), valve seat dish (1) contains screw thread post (3) of fixed mounting in the bottom, screw thread post (3) threaded connection is at the valve body inner wall, valve seat dish (1) top laminating is provided with valve core (2), four deflector (22) of case board (2) bottom fixed mounting, deflector (22) set up inside valve seat dish (1), valve case board (2) bottom fixed be provided with sealing gasket (23), valve seat dish (1) inside is provided with elastic sealing ring (6), sealing gasket (23) are the same with elastic sealing ring (6) size.
  2. 2. The corrosion-resistant valve seat of claim 1, wherein the valve core plate (2) is fixedly connected with a valve rod mounting seat (21) at the upper end and is fixedly connected with a valve rod body at the upper end of the valve rod mounting seat (21), a notch is formed in the valve seat disc (1), and the valve core plate (2) is matched with the notch.
  3. 3. The corrosion-resistant valve seat of claim 2, wherein the valve seat disc (1) is internally provided with a sealing groove (5) positioned at the inner side of the notch, the elastic sealing ring (6) is fixedly arranged in the sealing groove (5), and the sealing gasket (23) is matched with the sealing groove (5).
  4. 4. A corrosion-resistant valve seat resistant to strong acid and strong alkali according to claim 3, characterized in that four guide grooves (7) are fixedly formed in the inner wall of the valve seat disc (1), four guide plates (22) are all in sliding connection with the inside of the guide grooves (7), and the guide plates (22) are matched with the guide grooves (7).
  5. 5. The corrosion-resistant valve seat with strong acid and alkali resistance according to claim 4, wherein the elastic sealing ring (6) and the sealing gasket (23) are both made of fluororubber materials, and the valve seat disc (1) is made of hastelloy materials.
  6. 6. The corrosion-resistant valve seat of claim 1, wherein six mounting grooves (42) are formed in the inner wall of the valve seat disc (1), six threaded rods (41) are connected in the mounting grooves (42) in a threaded mode, one ends of the threaded rods (41) are connected to the inner wall of the valve body, and a threaded knob (4) is fixedly connected to the upper end of each threaded rod (41).

Description

Corrosion-resistant valve seat resistant to strong acid and strong alkali Technical Field The utility model relates to the technical field of valve seats, in particular to a corrosion-resistant valve seat resistant to strong acid and strong alkali. Background The stop valve is a common pipeline valve, and is mainly used for cutting off or connecting medium flow in a pipeline, and is generally composed of a valve body, a valve cover, a valve rod, a valve core (valve clack), a valve seat and other parts, and the valve core is enabled to move up and down along the axis direction of the valve rod by rotating the valve rod, so that the valve is opened and closed. When the valve core descends to be closely attached to the valve seat, the valve is closed to prevent medium from flowing, and when the valve core ascends to be away from the valve seat, the valve is opened to allow the medium to pass through. The existing stop valve seat has the defects that the valve seat is often corroded by strong acid and alkali mediums for a long time and rubbed in the valve opening and closing process, the sealing surface of the valve seat is likely to be worn and corroded, so that the sealing performance is reduced, the leakage and other problems are caused when the medium is blocked, the sealing effect on the medium is affected, and the corrosion-resistant valve seat resistant to strong acid and alkali is improved and upgraded. Disclosure of utility model The utility model aims to provide a corrosion-resistant valve seat resistant to strong acid and strong alkali, so as to solve the problems in the background technology. In order to solve the problems, the technical scheme is that the corrosion-resistant valve seat resistant to strong acid and strong alkali comprises a valve seat disc, the valve seat disc comprises a threaded column fixedly arranged at the bottom, the threaded column is in threaded connection with the inner wall of a valve body, a valve core plate is arranged above the valve seat disc in a fitting mode, four guide plates are fixedly arranged at the bottom of the valve core plate, the guide plates are arranged inside the valve seat disc, a sealing gasket is fixedly arranged at the bottom of the valve core plate, an elastic sealing ring is arranged inside the valve seat disc, and the sealing gasket is identical to the elastic sealing ring in size. As the optimization of the technical scheme, the valve core plate is fixedly connected with the valve rod mounting seat, the valve rod body is fixedly connected with the upper end of the valve rod mounting seat, the notch is formed in the valve seat disc, and the valve core plate is matched with the notch. As the optimization of above-mentioned technical scheme, the seal groove has been seted up to the disk seat inside being located the notch inboard, elastic sealing ring fixed mounting is inside the seal groove, sealing washer and seal groove looks adaptation. As the preference of above-mentioned technical scheme, the disk seat inner wall is fixed to be seted up four guide slots, four deflector all sliding connection is inside the guide slot, deflector and guide slot looks adaptation. As the optimization of the technical scheme, the elastic sealing ring and the sealing gasket are both made of fluororubber materials, and the valve seat disk is made of hastelloy materials. As the preference of above-mentioned technical scheme, six mounting grooves have been seted up to disk seat inner wall, the equal threaded connection of mounting groove inside has six threaded rods and threaded rod one end is connected on the valve body inner wall, threaded rod upper end fixedly connected with screw knob. Compared with the prior art, the utility model has the beneficial effects that: 1. The valve core plate, the valve seat disc, the guide plate, the elastic sealing ring, the sealing gasket and other components are arranged in the device, the valve core plate drives the sealing gasket to be extruded on the sealing groove in the valve seat disc, so that the valve core plate and the elastic sealing ring are extruded and sealed relatively, meanwhile, the guide plate and the guide groove are aligned accurately, the valve core and the valve seat are aligned accurately, the sealing effect of the valve is improved, and meanwhile, the valve seat has certain strong acid, strong alkali and corrosion resistance, and the sealing performance of the valve is improved. 2. The device is internally provided with the components such as the threaded knob, the threaded rod, the threaded column and the like, is favorable for stably fixing the valve seat in the valve body, and can be used for avoiding the problems of misalignment between the valve seat and the valve core caused by poor medium impact fixing effect for a long time, improving the close fit between the valve core and the valve seat and avoiding liquid leakage. Specific embodiments of the utility model are disclosed in detail below with reference