Valve body structure of stop valve

Abstract

The utility model belongs to the technical field of stop valves, and discloses a stop valve body structure which comprises a valve body, a protection assembly is arranged on the outer side of the valve body, an inlet and an outlet are formed in the left end and the right end of the valve body respectively, the inlet is connected with a filtering assembly, and the protection assembly comprises a protection shell matched with the valve body structure. A heating plate is installed on the inner wall of the protective shell, the space between the protective shell and the valve body is filled with a heat conducting medium, the filtering assembly comprises a pipe body, an annular protrusion is arranged on the inner wall of the pipe body, filtering plates are arranged on the two sides of the annular protrusion, and threaded rings are arranged on the sides, away from the annular protrusion, of the filtering plates; the threaded ring is in threaded connection with the inner wall of the pipe body, loss of internal heat is reduced through the protection shell structure, water icing caused by low temperature in the valve body is avoided, the heating plate is arranged, the valve body can be heated, water icing in the valve body is further avoided, and the stop valve is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of stop valve, specifically a stop valve body structure. BACKGROUND

[0002] The stop valve is also called a gate valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve disc to force the sealing surface not to leak, when the medium enters the valve from below the valve disc, the resistance that the operating force needs to overcome is the friction of the valve stem and the filler and the thrust generated by the pressure of the medium, so the force for closing the valve is greater than the force for opening the valve, and therefore the diameter of the valve stem needs to be large, otherwise the valve stem may be bent.

[0003] The stop valve mainly comprises a valve body, a valve cover, a valve disc, a valve stem, a filler, a hand wheel or a driving device, the valve body is the main part of the stop valve, is usually made of metal material, such as cast iron, cast steel, stainless steel, etc., and is internally provided with a fluid passage, the passage shape and size are designed according to application requirements, and the structural form is straight-through type, angle type, straight-flow type, etc.

[0004] In a low-temperature environment, the moisture in the stop valve freezes and expands in volume, which may crack the valve body, the valve disc and other components, resulting in damage to the stop valve, at the same time, the low temperature makes the metal material brittle, reduces the toughness and strength of the stop valve, and increases the risk of cracking.

[0005] Therefore, the stop valve body structure is provided for the above problems. INVENTION CONTENTS

[0006] In order to solve the problems in the background art, the utility model provides a stop valve body structure, which has the advantages of heating the valve body and avoiding the freezing of moisture in the valve body.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a stop valve body structure, comprising a valve body, a protection assembly is arranged on the outer side of the valve body, an inlet and an outlet are arranged at the left and right ends of the valve body respectively, and a filter assembly is connected to the inlet;

[0008] The protection assembly comprises a protection shell matched with the valve body structure, a heating plate is mounted on the inner wall of the protection shell, and a heat-conducting medium is filled between the protection shell and the valve body;

[0009] The filter assembly comprises a pipe body, an annular protrusion is arranged on the inner wall of the pipe body, filter plates are arranged on the two sides of the annular protrusion, a threaded ring is arranged on the side of the filter plate away from the annular protrusion, and the threaded ring is threadedly connected to the inner wall of the pipe body.

[0010] Preferably, a valve cover connecting interface is arranged on the top of the valve body.

[0011] Preferably, the contact position of the protective shell and the valve body is provided with a sealing gasket.

[0012] Preferably, the protective shell comprises a left half shell and a right half shell, and corresponding positions of the left half shell and the right half shell are fixed with fixing ears, and the corresponding fixing ears are connected through a fixing bolt.

[0013] Preferably, the left half shell and the right half shell are both composed of a metal shell and a heat insulation lining plate, and the heat insulation lining plate is arranged on the inner side of the metal shell.

[0014] Preferably, both ends of the pipe body are provided with a connecting flange.

[0015] Compared with the prior art, the utility model has the beneficial effects as follows:

[0016] 1、 the utility model discloses a protective assembly is set up, utilizes the protective shell structure to reduce the loss of internal heat, avoids the water ice formation caused by the lower temperature in the valve body, and sets up the heating plate, can heat the valve body, further avoids the water ice formation in the valve body, avoids damaging the stop valve;

[0017] 2、 the utility model discloses a filter assembly is set up, filters the fluid that enters the valve body, removes the large particle impurities in the fluid, avoids the serious wear of the parts of the stop valve caused by the large particle impurities, also can avoid the stop valve's blockage. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the structure schematic diagram of the valve body of the utility model;

[0020] Figure 3 It is the structure schematic diagram of the filter assembly of the utility model;

[0021] Figure 4 It is the structure schematic diagram of the protective assembly of the utility model;

[0022] Figure 5 It is the structure schematic diagram of the left half shell of the utility model.

[0023] In the drawing: 1, valve body;

[0024] 2, protective assembly;21, protective shell;211, left half shell;2111, metal shell;2112, heat insulation lining plate;212, right half shell;213, fixing ear;214, fixing bolt;22, heating plate;

[0025] 3, import;4, export;

[0026] 5, filter assembly; 51, pipe body; 52, annular protrusion; 53, filter plate; 54, threaded ring; 55, connecting flange;

[0027] 6, valve cover connecting interface. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] As Figures 1 to 5 shown, the utility model provides a kind of stop valve body 1 structure, including valve body 1, the outside of valve body 1 is equipped with protective assembly 2, the left and right ends of valve body 1 are equipped with inlet 3 and outlet 4 respectively, inlet 3 is connected with filter assembly 5;

[0030] Protective assembly 2 includes the protective shell 21 matched with the structure of valve body 1, heating plate 22 is installed on the inner wall of protective shell 21, heat conducting medium is filled between protective shell 21 and valve body 1, heat conducting medium is convenient for heat to be more evenly transferred on valve body 1, utilize the structure of protective shell 21 to reduce internal heat loss, avoid the water in valve body 1 to freeze due to lower temperature, and set heating plate 22, can heat valve body 1, further avoid the water in valve body 1 to freeze, avoid damaging stop valve;

[0031] Filter assembly 5 includes pipe body 51, annular protrusion 52 is arranged at the inner wall position of pipe body 51, filter plate 53 is arranged on the both sides of annular protrusion 52, threaded ring 54 is arranged on the side of filter plate 53 away from annular protrusion 52, threaded ring 54 is threadedly connected with the inner wall of pipe body 51, filters the fluid entering valve body 1, removes large particle impurities in fluid, avoids that large particle impurities cause serious abrasion to the components of stop valve, can also avoid the blockage of stop valve.

[0032] Specifically, the top of valve body 1 is provided with valve cover connecting interface 6 for connecting the valve cover of stop valve.

[0033] Further, sealing pads are arranged at the contact positions of protective shell 21 and valve body 1 to enhance the sealing between protective shell 21 and valve body 1.

[0034] Still further, protective shell 21 includes left half shell 211 and right half shell 212, fixing lugs 213 are fixed at the corresponding positions of left half shell 211 and right half shell 212, and the corresponding fixing lugs 213 are connected by fixing bolts 214, so that protective shell 21 can be installed and removed, which is conducive to the use of protective assembly 2.

[0035] It is worth mentioning that the left half shell 211 and the right half shell 212 are both composed of a metal shell 2111 and a heat insulation lining plate 2112, and the heat insulation lining plate 2112 is arranged on the inner side of the metal shell 2111 to reduce heat loss.

[0036] It is worth noting that the pipe body 51 is provided with a connecting flange 55 at both ends, which is convenient for connecting the valve body 1 and the pipeline.

[0037] Among them, the heating plate 22 is prior art, and will not be described again; at the same time, the utility model also includes power supply, controller and switch, which is not the main technical point of the patent, and will not be described again.

[0038] Working principle and process: the protection shell 21 of the protection assembly 2 is wrapped on the valve body 1, the heat conducting medium is filled between the protection shell 21 and the valve body 1, the heating plate 22 is started, heat is uniformly transmitted to the valve body 1 through the heat conducting medium, so that the water in the valve body 1 is prevented from icing, thereby preventing the valve body 1, the valve flap and other components from being cracked, the heat insulation lining plate 2112 of the left half shell 211 and the right half shell 212 can reduce heat loss and reduce power consumption, the fluid will pass through the filtering assembly 5 before entering the valve body 1, the filter plate 53 of the filtering assembly 5 can filter out large particle impurities in the fluid, so that the large particle impurities can not cause serious wear to the components of the stop valve, and the stop valve can also be prevented from being blocked, the filter plate 53 can be removed by unscrewing the threaded ring 54, so as to clean the filter plate 53 or replace a new filter plate 53, which is beneficial to the use of the stop valve.

[0039] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A stop valve body structure comprising a valve body (1), characterized by: The outer side of the valve body (1) is provided with a protection assembly (2), the left and right ends of the valve body (1) are respectively provided with an inlet (3) and an outlet (4), the inlet (3) is connected with a filter assembly (5); The protection assembly (2) comprises a protection shell (21) matched with the structure of the valve body (1), the inner wall of the protection shell (21) is provided with a heating plate (22), and the protection shell (21) and the valve body (1) are filled with a heat conducting medium; The filter assembly (5) comprises a pipe body (51), the inner wall of the pipe body (51) is provided with an annular protrusion (52), the two sides of the annular protrusion (52) are provided with filter plates (53), and the side, away from the annular protrusion (52), of the filter plate (53) is provided with a threaded ring (54) which is threadedly connected with the inner wall of the pipe body (51).

2. The valve body structure of a globe valve according to claim 1, wherein: The top of the valve body (1) is provided with a valve cover connecting interface (6).

3. The valve body structure of a globe valve according to claim 1, wherein: The contact positions of the protection shell (21) and the valve body (1) are provided with sealing pads.

4. The valve body structure of a globe valve according to claim 1, wherein: The protection shell (21) comprises a left half shell (211) and a right half shell (212), the corresponding positions of the left half shell (211) and the right half shell (212) are fixedly provided with fixing lugs (213), and the corresponding fixing lugs (213) are connected through fixing bolts (214).

5. A valve body structure for a globe valve according to claim 4, wherein: The left half shell (211) and the right half shell (212) are both composed of a metal shell (2111) and a heat insulation lining plate (2112), and the heat insulation lining plate (2112) is arranged on the inner side of the metal shell (2111).

6. The valve body structure of a globe valve according to claim 1, wherein: The two ends of the pipe body (51) are provided with connecting flanges (55).

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