Glass lining emptying valve adopting corrugated pipe packing type sealing

Abstract

The utility model discloses a glass lining emptying valve adopting corrugated pipe packing type sealing, which relates to the technical field of emptying valves, and comprises a valve core head, a valve seat, a valve body, PTFE (Polytetrafluoroethylene) corrugated pipe packing, a stainless steel valve core rod, a stainless steel pressing plate, PTFE packing, a stainless steel packing box cover, a starting executing mechanism, a flat flange pipe orifice and a temperature measuring probe. The valve seat is arranged at the top of the valve body, the stainless steel valve core rod is arranged in the valve body, the outer side of the stainless steel valve core rod is sleeved with the PTFE corrugated pipe filler, and the valve core head is arranged at the top of the stainless steel valve core rod in a threaded connection mode. According to the utility model, the deposition area is reduced to the maximum extent, the valve rod is protected from being eroded by materials, the specially designed flat flange pipe orifice is selected, the pipe orifice does not need to be provided with a top hole, and a flat plate type flange is welded with the glass lining lower seal head to ensure that the outlet of the pipe orifice is flush with the bottom of the seal head. When the equipment is used for stirring, particles at the bottommost part are naturally taken up by rotating liquid flow, and deposition is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a discharging valve technical field, specifically is a kind of glass lining discharging valve of corrugated pipe packing. BACKGROUND

[0002] The existing general glass lining discharging valve adopts integral glass lining valve core, and the valve stem and the glass lining valve body are sealed by packing, this structure is used in liquid-liquid, gas-liquid reaction kettle, in solid-liquid dissolution reaction, the reaction of granular catalyst, and the reaction that can produce crystallization, bottom discharge pipe mouth place granular material deposition often appears after the start of valve, and granular material deposition is easy to produce in the sealing packing area of valve interior, and glass lining valve stem is also attached crystalline in some crystallization reactions, these crystalline, deposition granular can accelerate the wear of valve core glass lining layer, cause glass lining discharging valve to be damaged in advance, affect production efficiency. SUMMARY

[0003] The utility model discloses a glass lining discharging valve of corrugated pipe packing to solve the problems in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of glass lining discharging valve of corrugated pipe packing, including valve core head, valve seat, valve body, PTFE corrugated pipe packing, stainless steel valve core stem, stainless steel pressing plate, PTFE packing, stainless steel packing box cover, starting execution mechanism, flat flange pipe mouth and temperature measurement probe, it is characterized in that, the valve seat is set in the top of valve body, stainless steel valve core stem is set in the inside of valve body, PTFE corrugated pipe packing is sleeved on the outside of stainless steel valve core stem, the valve core head is set by screw thread connection in the top of stainless steel valve core stem, stainless steel pressing plate, PTFE packing and stainless steel packing box cover are also set in the inside below of valve body, flat flange pipe mouth is also set in the top of valve body.

[0006] As a further scheme of the utility model: two 3mm round holes are formed in the upper end and the lower end of the stainless steel valve core stem.

[0007] As a further scheme of the utility model: temperature measurement probe is also set in the top of the stainless steel valve core stem.

[0008] Compared with prior art, the utility model has the beneficial effects as follows:

[0009] 1. To minimize sedimentation and protect the valve stem from material corrosion, a specially designed flat flange is used. This flange eliminates the need for a top hole; a flat flange is welded to the glass-lined lower head, ensuring the outlet is flush with the bottom of the head. During agitation, the rotating liquid flow naturally carries up the bottom particles, preventing sedimentation.

[0010] 2. The PTFE bellows packing not only protects the valve stem but also adjusts the valve opening height through the telescopic bellows, ensuring a seal with the valve core while reducing particulate matter deposition. The valve core head and the stainless steel valve core rod are connected by threads. By rotating the thread length, the pre-compression length of the PTFE bellows packing can be adjusted to achieve flexible sealing and simple disassembly and assembly.

[0011] 3. The stainless steel valve core rod has two 3mm round holes at the top and bottom to allow air to enter when the valve is opened, so as to prevent the PTFE bellows packing from deforming under external pressure when discharging, which would affect the sealing effect. In addition, if the seal fails, corrosion will flow out from the stainless steel valve core rod 5, which serves as a warning signal hole. Attached Figure Description

[0012] Fig. 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0013] Fig. 2 This is a schematic diagram of the stainless steel valve core rod in an embodiment of this utility model.

[0014] Fig. 3 This is a schematic diagram of the stainless steel valve core rod in an embodiment of this utility model.

[0015] Fig. 4 This is a schematic diagram of the valve core head in an embodiment of this utility model.

[0016] Figure label annotations: 1. Valve core head; 2. Valve seat; 3. Valve body; 4. PTFE bellows; 5. Stainless steel valve core rod; 6. Stainless steel pressure plate; 7. PTFE packing; 8. Stainless steel packing box cover; 9. Actuating mechanism; 10. Flat flange port; 11. Temperature probe. Detailed Implementation

[0017] The following embodiments will be described in detail with reference to the accompanying drawings. In the drawings and description, similar or identical parts are referred to by the same reference numerals. Furthermore, in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are merely illustrative and not intended to limit the scope of the utility model. Any obvious modifications or alterations made to this utility model do not depart from its spirit and scope.

[0018] Example

[0019] Please refer to Figs. 1-4 The utility model discloses a glass bushing valve of a kind of corrugated pipe packing, including valve core head 1, valve seat 2, valve body 3, PTFE corrugated pipe packing 4, stainless steel valve core stem 5, stainless steel pressing plate 6, PTFE packing 7, stainless steel packing box cover 8, starting execution mechanism 9, flat flange pipe mouth 10 and temperature measuring probe 11, the valve body 3, valve body 3 top is provided with valve seat 2, the inside of valve body 3 is provided with stainless steel valve core stem 5, the outside of stainless steel valve core stem 5 is equipped with PTFE corrugated pipe packing 4, the valve core head 1 is provided with by screw thread connection at the top of stainless steel valve core stem 5, when rotating valve core head 1, it can be through the length of rotation screw thread, and then adjust the compression length of PTFE corrugated pipe packing 4, to realize flexible sealing, to make the dismounting of the glass bushing valve more simple, the PTFE corrugated pipe packing 4 is protected valve stem, and also adjust valve opening height by telescopic corrugated pipe, ensure sealing with valve core, reduce particulate matter deposition.

[0020] The inside of valve body 3 is also provided with stainless steel pressing plate 6, PTFE packing 7 and stainless steel packing box cover 8 below, the top of valve body 3 is also provided with flat flange pipe mouth 10, under the action of flat flange pipe mouth 10, the glass bushing valve can be connected with equipment, to ensure the connection quality of the glass bushing valve and equipment, the bottom end of stainless steel valve core stem 5 is connected with starting execution mechanism 9, and the opening and closing of the glass bushing valve can be realized by using starting execution mechanism 9, to make the glass bushing valve realize the function of discharging.

[0021] The upper end and the lower end of stainless steel valve core stem 5 are each opened two 3mm round holes, when valve is opened, air is inhaled, so that PTFE corrugated pipe packing 4 is not deformed by external pressure when discharging, and the sealing effect is not affected. In addition, once the sealing fails, corrosion flows out from stainless steel valve core stem 5, which plays a role of signal hole warning, the top of stainless steel valve core stem 5 is also provided with temperature measuring probe 11, under the action of temperature measuring probe 11, it is convenient for staff to monitor the discharging temperature in real time.

[0022] In actual use, first, install PTFE corrugated pipe packing 4 to glass bushing valve body 3, fix two sealing O-rings below PTFE corrugated pipe packing 4, pass stainless steel valve core stem 5 from the middle of PTFE corrugated pipe packing 4 from top to bottom, install valve seat 2 on valve body 3, tighten valve core head 1 and stainless steel valve core stem 5, adjust the relative position of valve core head 1, valve seat 2 and PTFE corrugated pipe packing 4, to ensure that the sealing surface is pressed tightly. Install stainless steel pressing plate 6, PTFE packing 7 at the bottom of valve, and press and fix with stainless steel packing box cover 8, install the assembled valve to the flat flange pipe mouth 10 at the bottom of equipment, and starting execution mechanism 9 can normally open and close.

[0023] In actual use, first, the actuator 9 is started to drive the stainless steel valve stem 5 to move up and down, and then drive the valve head 1 to rotate or lift. In this process, the PTFE corrugated pipe packing 4 as the key sealing element, its compression length can be adjusted by rotating the valve head 1, so as to realize the accurate control of the sealing performance, the PTFE corrugated pipe packing 4 due to its good flexibility and corrosion resistance, not only can effectively protect the stainless steel valve stem 5 from being eroded by the medium, but also can automatically adjust the opening height of the valve through its telescopic property, ensure the sealing surface closely, at the same time, reduce the deposition of material in the sealing area, when the valve is closed, the PTFE corrugated pipe packing 4 is subjected to the pressure action of the valve head 1, and is deformed and closely attached to the valve seat 2, forming a reliable sealing barrier to prevent medium leakage. At the same time, the secondary sealing system composed of the stainless steel pressing plate 6, the PTFE packing 7 and the stainless steel packing box cover 8 in the valve body 3 further enhances the sealing performance of the valve, ensures that the valve can maintain good sealing effect under various working conditions, the circular hole designed on the stainless steel valve stem 5 allows air to enter when the valve is opened, this design aims to balance the pressure inside and outside the valve stem, prevent the PTFE corrugated pipe packing 4 from deforming due to excessive external pressure during discharging, so as to ensure the durability and stability of the sealing. At the same time, these circular holes also have the function of signal hole when the corrosive liquid leaks, once the sealing fails, the corrosive liquid will flow out through the circular hole, providing a timely warning signal, the temperature measuring probe 11 at the top of the stainless steel valve stem 5 monitors the discharging temperature in real time, ensuring the safety of the production process and the quality of the product. Through this series of complex and delicate design, the glass bushing valve realizes efficient, reliable and easy-to-maintain discharging operation, and is widely used in material conveying system in chemical industry, pharmaceutical industry, food industry and other industries.

[0024] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0025] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A glass bushing valve with corrugated packing, comprising a valve core head (1), a valve seat (2), a valve body (3), a PTFE corrugated packing (4), a stainless steel valve core rod (5), a stainless steel pressing plate (6), a PTFE packing (7), a stainless steel packing box cover (8), a starting actuator (9), a flat flange pipe mouth (10), and a temperature measuring probe (11), characterized in that, The valve body (3) is provided with a valve seat (2) at the top, a stainless steel valve core rod (5) is arranged inside the valve body (3), a PTFE corrugated pipe packing (4) is sleeved outside the stainless steel valve core rod (5), a valve core head (1) is arranged at the top of the stainless steel valve core rod (5) through threaded connection, a stainless steel pressing plate (6), a PTFE packing (7) and a stainless steel packing box cover (8) are further arranged below the inside of the valve body (3), and a flat flange pipe mouth (10) is further arranged at the top of the valve body (3).

2. A glass-lined feed valve employing bellows packing as set forth in claim 1 wherein, Two (3) mm round holes are formed in the upper end and the lower end of the stainless steel valve core rod (5).

3. The glass-lined feed valve employing bellows packing as set forth in claim 1 wherein, A temperature measuring probe (11) is further arranged at the top of the stainless steel valve core rod (5).

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