Sealing performance detection device for regulating valve production

Abstract

The utility model belongs to the technical field of regulating valve detection, and particularly relates to a sealing performance detection device for regulating valve production, which comprises a bottom plate, a detection bin arranged at the top of the bottom plate, a regulating valve body arranged in the detection bin, an air inlet pipe and an air outlet pipe respectively arranged at one end and the other end of the regulating valve body, and a filter assembly arranged on one side of the detection bin. The filtering assembly is used for filtering liquid in the detection bin and comprises a water pump fixed to one side of the detection bin, the input end of the water pump is connected with the interior of the detection bin through a hose, the output end of the water pump is connected with a filtering column through a hose, and the filtering column is installed on the outer side of the detection bin. According to the utility model, the intuition of a soaking method is kept, and whether the regulating valve body leaks gas or not can be determined by adding a specific solution into the detection bin and introducing specific gas into the regulating valve body and observing the color change of the solution and the pH value of the detector, so that the detection accuracy and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of governing valve detection, specifically relates to a sealing detection device for governing valve production. BACKGROUND

[0002] In industrial production, as an important control element, the sealing performance of the governing valve is directly related to the safe and stable operation of the whole system, therefore, the sealing detection of the governing valve is an important link to ensure product quality and safety, the existing sealing detection methods are various, but there are problems of complex operation, low detection efficiency, low detection precision and the like in common;

[0003] The traditional sealing detection method usually includes immersion method, pressure decay method, vacuum method and the like, the immersion method is to immerse the governing valve into water, and whether there is bubble generation is observed to judge the sealing, this method is intuitive, but the detection precision is low;

[0004] The pressure decay method is to fill a certain pressure gas into the inside of the governing valve, and then the change of pressure with time is observed to judge the sealing, this method can quantitatively analyze, but the requirement to the equipment is higher, the operation is complex, and the detection time is longer;

[0005] The vacuum method is to place the governing valve in a vacuum environment, and check whether there is air leakage, this method also has higher requirement to the equipment, and is not sensitive enough to the detection of small leakage;

[0006] With the development of industrial automation and intelligentization, higher requirement is put forward to the sealing detection of the governing valve, in order to improve the detection efficiency and precision and reduce the operation complexity, some automatic detection equipment appears in the market, however, these equipments are often expensive, and still have certain limitations in actual application, such as poor environmental adaptability, high maintenance cost and the like;

[0007] Therefore, the utility model provides a novel sealing detection device for governing valve production in view of the problems in the prior art. UTILITY MODEL CONTENTS

[0008] The utility model discloses a kind of sealing detection devices for governing valve production, retain the intuitiveness of immersion method, whether the leakage of governing valve body can be determined by adding specific solution in detection bin and the specific gas of governing valve body, observing the color change of solution and the pH acidity of detector, to improve the accuracy and efficiency of detection.

[0009] The technical scheme adopted by the utility model is as follows:

[0010] The utility model discloses a sealing detection device for regulating valve production, including the bottom plate, the top of bottom plate is installed with detection bin, the regulating valve body is placed in the detection bin, and the regulating valve body one end with the other end is installed with the air inlet pipe and the air outlet pipe respectively,

[0011] One side of the detection bin is installed with a filter assembly for filtering the liquid in the detection bin.

[0012] The filter assembly includes a water pump fixed to one side of the detection bin, the input end of the water pump is connected to the inside of the detection bin through a hose, and the output end of the water pump is connected to a filter column through a hose, the filter column is installed outside the detection bin, and the end of the filter column away from the water pump is connected to the inside of the detection bin through a hose.

[0013] The filter column includes a filter frame, a primary filter layer, and a high-precision filter layer.

[0014] The filter frame is arranged outside the primary filter layer, high-precision filter layer, and carbon dioxide filter layer, and the filter frame is installed outside the detection bin, the primary filter layer, high-precision filter layer, and carbon dioxide filter layer are sequentially installed in the filter frame from left to right.

[0015] The outside of the bottom plate is fixed with a mounting bracket, the top of the mounting bracket is installed with a push rod motor, a pH value detector is installed on the mounting bracket, the stroke rod of the push rod motor is vertically downwardly installed with a detection head, and the detection head is connected to the pH value detector through a wire.

[0016] The inside of the detection bin is fixed with a support block, and the regulating valve body is placed on the top of the support block.

[0017] The side plate of the detection bin is glass.

[0018] The utility model discloses a sealing detection device for regulating valve production, including the bottom plate, the top of bottom plate is installed with detection bin, the regulating valve body is placed in the detection bin, and the regulating valve body one end with the other end is installed with the air inlet pipe and the air outlet pipe respectively,

[0019] The utility model discloses a sealing detection device for regulating valve production, including the bottom plate, the top of bottom plate is installed with detection bin, the regulating valve body is placed in the detection bin, and the regulating valve body one end with the other end is installed with the air inlet pipe and the air outlet pipe respectively, BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the structure diagram of the utility model;

[0021] Figure 2 is the sectional view of the detection bin in the utility model;

[0022] Figure 3 is a structural schematic view between the water pump and the filter column in the utility model;

[0023] Figure 4 is a structural schematic view between the pH value detector, the push rod motor and the detection head in the utility model;

[0024] Figure 5 is a sectional view of the filter frame.

[0025] In the drawings, the components represented by each reference numeral are listed as follows:

[0026] 1, bottom plate; 2, detection bin; 3, air inlet pipe; 4, air outlet pipe; 5, regulating valve body; 6, supporting block; 7, pH value detector; 8, water pump; 9, filter column; 10, mounting frame; 11, push rod motor; 12, detection head; 91, filter frame; 92, primary filter layer; 93, high-precision filter layer; 94, carbon dioxide filter layer. DETAILED DESCRIPTION

[0027] In order to make the purpose and advantages of the utility model more clear and apparent, the utility model will be specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the utility model, and does not strictly limit the specific protection scope requested by the utility model.

[0028] Example 1:

[0029] As shown in Figures 1-5 A sealing detection device for regulating valve production, including bottom plate 1, the top of bottom plate 1 is installed with detection bin 2, the detection bin 2 is placed with regulating valve body 5, further, the inside of detection bin 2 is fixed with supporting block 6, and the regulating valve body 5 is placed on the top of supporting block 6, through the setting of supporting block 6, the regulating valve body 5 is supported, one end and the other end of regulating valve body 5 are installed with air inlet pipe 3 and air outlet pipe 4 respectively, the air inlet pipe 3 and air outlet pipe 4 can be provided with sealing pads between the detection bin 2, when installing regulating valve body 5, it can be installed in the detection bin 2, the outside of detection bin 2 is installed with water inlet pipe and water outlet pipe for water inlet and water outlet;

[0030] In this embodiment, the detection bin 2 is filled with liquid such as water, the air inlet pipe 3 is filled with air, the air passes through the regulating valve body 5 and is discharged through the air outlet pipe 4, if the regulating valve body 5 has the phenomenon of air leakage, the user can judge whether the regulating valve body 5 leaks by whether there are air bubbles, in this embodiment, the side plate of detection bin 2 can be glass, which is convenient for the user to observe;

[0031] One side of detection bin 2 is installed with filter assembly, the filter assembly is used for filtering the liquid in detection bin 2.

[0032] Referring to the drawings Figure 3 The filtering assembly comprises a water pump 8 fixed on one side of the detection chamber 2, the input end of the water pump 8 is connected with the inside of the detection chamber 2 through a hose, and the output end of the water pump 8 is connected with a filtering column 9 through a hose. Referring to the drawings Figure 5 The filtering column 9 comprises a filtering frame 91, a primary filtering layer 92 and a high-precision filtering layer 93.

[0033] The filtering frame 91 is arranged outside the primary filtering layer 92, the high-precision filtering layer 93 and the carbon dioxide filtering layer 94, and is installed outside the detection chamber 2. The filtering column 9 is installed outside the detection chamber 2. The primary filtering layer 92, the high-precision filtering layer 93 and the carbon dioxide filtering layer 94 are sequentially installed in the filtering frame 91 from left to right. The end of the filtering column 9 away from the water pump 8 is connected with the inside of the detection chamber 2 through a hose.

[0034] The primary filtering layer 92 can be made of cotton, PP cotton or the like. These materials have large pores and strong interception capacity, and can quickly filter out a large amount of large-particle impurities.

[0035] The high-precision filtering layer 93 can be made of activated carbon, ceramic, ultrafiltration membrane or the like. These materials have finer pore structures and stronger adsorption or screening capacity, and can effectively remove micro-pollutants in water.

[0036] The carbon dioxide filtering layer 94 can be made of special chemical adsorbent or ion exchange resin, such as strong alkaline anion exchange resin, which can exchange with carbonate ions in water to remove carbon dioxide.

[0037] Through the filtration of the primary filtering layer 92, the high-precision filtering layer 93 and the carbon dioxide filtering layer 94, most of the solution can be filtered.

[0038] When filtering the solution in the detection chamber 2, the water pump 8 can be started to suck the solution in the detection chamber 2 through the input end of the water pump 8, and the solution enters the filtering column 9 through the output end of the water pump 8, is filtered by the filtering column 9, and is discharged into the detection chamber 2 again, thereby realizing the filtering effect of the solution in the detection chamber 2.

[0039] Example 2:

[0040] In the embodiment, the solution in the detection chamber 2 is replaced by water with a small amount of purple litmus solution, and the gas flowing into the regulating valve body 5 is replaced by carbon dioxide. If the regulating valve body 5 leaks, carbon dioxide leaks into the solution, and the solution will slowly change from purple to light red. The presence of carbon dioxide can be determined according to the color change, and the leakage of the regulating valve body 5 can be determined. In the embodiment, the side plate of the detection chamber 2 can be glass, which is convenient for the user to observe.

[0041] The principle is as follows:

[0042] When carbon dioxide is introduced into water with purple litmus solution to generate carbonic acid, the carbonic acid will partially ionize to produce hydrogen ions H + and bicarbonate ions HCO -3 , which increases the concentration of hydrogen ions in the solution, breaks the original ionization balance in the litmus solution, and moves the ionization balance of the litmus to the left, thereby gradually changing the color of the solution from purple to light red. Through this color change, the presence of carbon dioxide can be determined.

[0043] Embodiment 3:

[0044] Referring to the accompanying drawings Figure 3 , the outer side of the bottom plate 1 is fixed with a mounting bracket 10, the top of the mounting bracket 10 is provided with a push rod motor 11, the mounting bracket 10 is provided with a pH detector 7, and the stroke rod of the push rod motor 11 is vertically downwardly provided with a detection head 12. The detection head 12 is connected with the pH detector 7 through wires;

[0045] When carbon dioxide in embodiment 2 enters the water with purple litmus solution, the pH of the solution will change. At this time, the push rod motor 11 can be driven to make the push rod motor 11 drive the detection head 12 to enter the solution to detect the solution, and transmit the data to the pH detector 7, so that the pH detector 7 judges whether the pH of the solution deviates, and further judges whether the regulating valve body 5 leaks. Of course, the detection head 12 and the pH detector 7 are not used, and only the ph test paper is used for detection.

[0046] The above is only a preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the art, without departing from the principle of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application are implemented according to the conventional means in the art, unless otherwise specified and limited.

Claims

1. A sealing property detection device for regulating valve production, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is provided with a detection bin (2), and the detection bin (2) is placed with a regulating valve body (5), one end of the regulating valve body (5) is provided with an air inlet pipe (3), and the other end is provided with an air outlet pipe (4). One side of the detection bin (2) is provided with a filter assembly for filtering the liquid in the detection bin (2).

2. The sealing property detection device for a regulating valve according to claim 1, characterized in that: The filter assembly comprises a water pump (8) fixed on one side of the detection bin (2), the input end of the water pump (8) is connected with the inside of the detection bin (2) through a hose, and the output end of the water pump (8) is connected with a filter column (9) through a hose, the filter column (9) is installed outside the detection bin (2), and the end of the filter column (9) away from the water pump (8) is connected with the inside of the detection bin (2) through a hose.

3. The sealing property detection device for a regulating valve according to claim 2, characterized in that: The filter column (9) comprises a filter frame (91), a primary filter layer (92) and a high-precision filter layer (93). The filter frame (91) is arranged outside the primary filter layer (92), the high-precision filter layer (93) and the carbon dioxide filter layer (94), and the filter frame (91) is arranged outside the detection bin (2), and the primary filter layer (92), the high-precision filter layer (93) and the carbon dioxide filter layer (94) are arranged in the filter frame (91) from left to right.

4. The sealing property detection device for a regulating valve according to claim 1, characterized in that: The outside of the bottom plate (1) is fixed with a mounting bracket (10), the top of the mounting bracket (10) is provided with a push rod motor (11), the mounting bracket (10) is provided with a pH value detector (7), the stroke rod of the push rod motor (11) is vertically downwardly provided with a detection head (12), and the detection head (12) is connected with the pH value detector (7) through wires.

5. The leak detection apparatus for regulating valve production according to claim 1, wherein: The inside of the detection bin (2) is fixed with a support block (6), and the regulating valve body (5) is placed on the top of the support block (6).

6. The leak detection apparatus for a regulating valve according to claim 1, wherein: The side plate of the detection bin (2) is glass.

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