Dry gas seal auxiliary system device for sand mill

Abstract

The utility model relates to the technical field of mechanical manufacturing, and discloses a dry gas seal auxiliary system device for a sand mill, which comprises a stainless steel panel, a clamping sleeve elbow and a filter pressure reducing valve are arranged on the front side of the stainless steel panel, and a flange component and a clamping sleeve straight joint are arranged on the right side of the filter pressure reducing valve. A clamping sleeve ball valve is arranged at the bottom of the flange assembly, a glass rotameter is arranged on the right side of the clamping sleeve ball valve, and a clamping sleeve four-way connector and a pressure gauge are arranged on the right side of the glass rotameter. A clamping sleeve stop valve and a first clamping sleeve internal thread connector are arranged between the pressure gauge and the clamping sleeve four-way connector. According to the utility model, the traditional liquid sealing is replaced by gas blocking, the pressure of the sealing gas is 0.2-0.3 MPa higher than that of the medium cavity, a physical isolation gas film is formed, the leakage of toxic or high-value dry powder media is completely eradicated, and the sealing device is particularly suitable for flammable and explosive or environment-friendly sensitive scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical manufacturing technical field, concretely is a sand mill dry gas seal auxiliary system device. BACKGROUND

[0002] In the industrial application of sand mill, the dry gas seal system needs to adapt to the special sealing requirement of dry powder medium (avoiding water contact), and the control logic is significantly different from the traditional dry gas seal for pump. The dry gas seal of sand mill needs to control the pressure and temperature of sealing gas accurately, and monitor the running state (such as pressure and flow fluctuation) in real time, so as to cope with the sealing challenge brought by the medium characteristics in the grinding process.

[0003] In the prior art, there is no special auxiliary detection device for the dry gas seal of sand mill dry powder medium, which is difficult to meet the strict requirement of "medium zero escape". The traditional sealing system has problems such as unstable gas source pressure, impurities easily blocking the sealing gap, and lagging leakage monitoring, which leads to easy damage and short service life of the sealing element, and cannot timely alarm the pressure abnormality or flow mutation of the sealing gas, which has the defects of safety hidden danger and high maintenance cost. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to provide a dry gas seal auxiliary system device for sand mill in view of the above-mentioned problems in the prior art.

[0005] To solve the above-mentioned technical problem, the utility model adopts the technical scheme of a dry gas seal auxiliary system device for sand mill, which comprises a stainless steel panel, the front surface of the stainless steel panel is provided with a sleeve elbow and a filter pressure reducing valve, the right side of the filter pressure reducing valve is provided with a flange assembly and a sleeve straight-through joint, the right side of the sleeve straight-through joint is provided with a sleeve tee joint, the bottom of the flange assembly is provided with a sleeve ball valve, the right side of the sleeve ball valve is provided with a glass rotor flowmeter, the right side of the glass rotor flowmeter is provided with a sleeve four-way joint and a pressure gauge, a sleeve stop valve and a sleeve internal thread joint one are arranged between the pressure gauge and the sleeve four-way joint, the right side of the pressure gauge is provided with a pressure transmitter and a sleeve internal thread joint two, the bottom of the sleeve four-way joint is provided with a sleeve check valve and a sleeve internal thread joint three.

[0006] Preferably, a sleeve pipe one is arranged between the flange assembly and the sleeve ball valve, and a light pipe clamp one is arranged on the sleeve pipe one.

[0007] Preferably, a sleeve pipe two is arranged between the glass rotor flowmeter and the sleeve four-way joint, a sleeve pipe three is arranged between the sleeve four-way joint and the pressure transmitter, and a light pipe clamp two is arranged on the sleeve pipe two and the sleeve pipe three.

[0008] Preferably, the front surface of the stainless steel panel is provided with a rail C-shaped steel, which is arranged at the back surface of the sleeve ball valve.

[0009] Preferably, the front surface of the stainless steel panel is provided with a rail C-shaped steel, which is arranged at the back surface of the sleeve ball valve.

[0010] Preferably, the sleeve elbow is a ninety-degree elbow.

[0011] The utility model discloses the above technical scheme can bring following beneficial effects:

[0012] 1、The sand mill dry gas seal auxiliary system device adopts gas blockage to replace traditional liquid seal, and the sealing gas pressure is higher than the medium cavity 0.2-0.3MPa, forms the physical isolation gas film, thoroughly prevents the leakage of toxic or high-value dry powder medium, and is especially suitable for flammable and explosive or environmental protection sensitive scene.

[0013] 2、The sand mill dry gas seal auxiliary system device integrates pressure gauge, pressure transmitter and flowmeter, realizes the dynamic monitoring of sealing gas pressure and flow, can alarm in real time through control room in abnormal state, prevents the risk of seal failure, improves equipment operation safety, and clean gas source avoids the impurity abrasion of sealing element, and the sealing life can reach more than three years under normal working condition, significantly reduces the replacement frequency and maintenance cost;Double-path gas supply design gives consideration to preblowing and main sealing functions, prevents medium invasion, guarantees gas film stability, is suitable for high-load continuous grinding scene of dry powder type water-avoiding medium, and widens the application range of dry gas seal. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the front surface structure schematic view of the utility model;

[0015] Fig. 2 It is the rail C-shaped steel sectional view of the utility model;

[0016] Fig. 3 It is the auxiliary system flow chart of the utility model.

[0017] In the drawing: 1, sleeve elbow;2, filter pressure reducing valve;3, sleeve straight-through joint;4, sleeve tee joint;5, flange assembly;6, sleeve ball valve;7, light pipe clamp one;8, glass rotor flowmeter;9, sleeve pipe two;10, sleeve cross joint;11, sleeve stop valve;12, pressure gauge;13, sleeve internal thread joint one;14, pressure transmitter;15, sleeve internal thread joint two;16, light pipe clamp two;17, sleeve check valve;18, sleeve internal thread joint three;19, stainless steel panel;191, mounting hole;20, rail C-shaped steel. DETAILED DESCRIPTION

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0022] like Figs. 1-3 As shown, this utility model provides a dry gas sealing auxiliary system device for a sand mill, including a stainless steel panel 19. A ferrule elbow 1 and a filter pressure reducing valve 2 are arranged on the front of the stainless steel panel 19. A flange assembly 5 and a ferrule straight connector 3 are arranged on the right side of the filter pressure reducing valve 2. A ferrule tee connector 4 is arranged on the right side of the ferrule straight connector 3. A ferrule ball valve 6 is arranged at the bottom of the flange assembly 5. A glass rotor flow meter 8 is arranged on the right side of the ferrule ball valve 6. A ferrule four-way connector 10 and a pressure gauge 12 are arranged on the right side of the glass rotor flow meter 8. A ferrule stop valve 11 and a ferrule internal thread connector 13 are arranged between the pressure gauge 12 and the ferrule four-way connector 10. A pressure transmitter 14 and a ferrule internal thread connector 15 are arranged on the right side of the pressure gauge 12. A ferrule check valve 17 and a ferrule internal thread connector 18 are arranged at the bottom of the ferrule four-way connector 10. The ferrule elbow 1 is a 90-degree elbow.

[0023] Specifically, the lower part of the sleeve elbow 1 is connected with the front nitrogen purging port, the pipe network nitrogen enters through the flange interface, is controlled by the sleeve ball valve 6, is branched to the front purging unit through the sleeve tee joint 4, the nitrogen is first adjusted to 0.25 MPa through the pressure reducing valve, then removes the particulate impurities through the filter with the filtering precision of 0.005 mm, then is transported to the front nitrogen purging port through the check valve, continuously purges the front end of the sealed cavity, prevents the dry powder medium from invading the sealing gap, the other way of nitrogen is adjusted to 0.4 MPa through the pressure reducing valve, is filtered and then passes through the glass rotor flowmeter 8, and the gas flow is monitored in real time; is branched to the pressure gauge 12 and the pressure transmitter 14 through the sleeve four-way joint 10, and the sealing gas pressure data is fed back in real time, finally, the clean high-pressure nitrogen is connected to the dry gas sealing air inlet through the sleeve check valve 17, a gas film with a pressure of 0.2-0.3 MPa higher than the medium pressure is formed in the sealing gap, and the gas blocking seal is realized; the sealing state is judged by observing the floating ball height of the glass rotor flowmeter 8, if the floating ball exceeds the set range, it indicates that the seal is worn or damaged, and the machine needs to be stopped for maintenance; the pressure transmitter 14 is linked with the control room, and real-time alarm is given for overpressure, underpressure or flow abnormality.

[0024] In the embodiment, the sleeve pipe one is arranged between the flange assembly 5 and the sleeve ball valve 6, the light pipe clamp one 7 is arranged on the sleeve pipe one, the sleeve pipe two 9 is arranged between the glass rotor flowmeter 8 and the sleeve four-way joint 10, the sleeve pipe three is arranged between the sleeve four-way joint 10 and the pressure transmitter 14, and the light pipe clamp two 16 is arranged on the sleeve pipe two 9 and the sleeve pipe three.

[0025] Specifically, the light pipe clamp one 7 and the light pipe clamp two 16 are consistent in shape, so as to install the corresponding sleeve pipes on the front surface of the stainless steel panel 19.

[0026] In the embodiment, the front surface of the stainless steel panel 19 is provided with the track C-shaped steel 20, and the track C-shaped steel 20 is arranged on the back surface of the sleeve ball valve 6.

[0027] Specifically, the track C-shaped steel 20 is arranged for mounting the sleeve ball valve 6 on the stainless steel panel 19.

[0028] In the embodiment, the front surface of the stainless steel panel 19 is provided with the mounting hole 191.

[0029] Specifically, the mounting hole 191 is provided in a plurality of numbers, so as to facilitate mounting the stainless steel panel 19 at a required position by using bolts.

[0030] It is worth noting that, Fig. 3 The CBI in the middle is the nitrogen inlet, the FO is the front nitrogen purging port, and the D is the regular purging discharge port.

[0031] The utility model provides a kind of dry gas seal auxiliary system device for sand mill, the method and approach of the specific implementation of this technical solution are many, above is only the preferred embodiment of the utility model, it should be pointed out, for the ordinary skilled person in the art, without departing from the principle of the utility model, still can make several improvements and refinements, these improvements and refinements should also be considered as the protection scope of the utility model. The components not specified in the embodiment can be implemented using existing technology.

Claims

1. A dry gas seal auxiliary system device for a sand mill comprising a stainless steel faceplate (19) characterized by: The front of the stainless steel panel (19) is provided with a sleeve elbow (1) and a filter pressure reducing valve (2), the right side of the filter pressure reducing valve (2) is provided with a flange assembly (5) and a sleeve straight-through joint (3), the right side of the sleeve straight-through joint (3) is provided with a sleeve tee joint (4), the bottom of the flange assembly (5) is provided with a sleeve ball valve (6), the right side of the sleeve ball valve (6) is provided with a glass rotor flowmeter (8), the right side of the glass rotor flowmeter (8) is provided with a sleeve cross joint (10) and a pressure gauge (12), a sleeve stop valve (11) and a sleeve female thread joint one (13) are arranged between the pressure gauge (12) and the sleeve cross joint (10), the right side of the pressure gauge (12) is provided with a pressure transmitter (14) and a sleeve female thread joint two (15), the bottom of the sleeve cross joint (10) is provided with a sleeve check valve (17) and a sleeve female thread joint three (18).

2. A dry gas seal auxiliary system device for a sand mill as claimed in claim 1, wherein: The sleeve pipe one is arranged between the flange assembly (5) and the sleeve ball valve (6), and the sleeve pipe one is provided with a light pipe clamp one (7).

3. A dry gas seal auxiliary system apparatus for a sand mill as defined in claim 1, wherein: The sleeve pipe two (9) is arranged between the glass rotor flowmeter (8) and the sleeve cross joint (10), and the sleeve pipe three is arranged between the sleeve cross joint (10) and the pressure transmitter (14), and the sleeve pipe two (9) and the sleeve pipe three are both provided with a light pipe clamp two (16).

4. A dry gas seal auxiliary system apparatus for a sand mill as defined in claim 1, wherein: The front of the stainless steel panel (19) is provided with a track C-shaped steel (20), and the track C-shaped steel (20) is arranged at the back of the sleeve ball valve (6).

5. A dry gas seal auxiliary system apparatus for a sand mill as defined in claim 1, wherein: The front of the stainless steel panel (19) is provided with a mounting hole (191).

6. A dry gas seal auxiliary system apparatus for a sand mill as defined in claim 1, wherein: The sleeve elbow (1) is a ninety-degree elbow.

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