Device for replacing valve with gas

Abstract

The utility model discloses a device for replacing a valve with gas, which comprises a pipeline component, a connecting component and a sealing component, the top of the pipeline component is provided with the connecting component, the top of the connecting component is provided with the sealing component, and the pipeline component comprises a gas delivery pipe, a connector and a flange ball valve. By arranging a gas conveying pipe, a connector, a flange ball valve, a short section, a threaded ball valve, a connecting pipe, a side pipe, a barometer, a bleeder, a guide sleeve, a connecting sleeve, a handle, a sealing head, a through core shaft, an upper nut and a lower nut, the threaded ball valve is connected to the flange ball valve of a main gas conveying pipe, and then the guide sleeve and the through core shaft are inserted into the threaded ball valve; when the flange ball valve is replaced, the sealing head below the guide sleeve extends into the lower part of the flange ball valve to seal the flange ball valve, then the original flange ball valve is detached, and a new flange ball valve is replaced, so that the flange ball valve is safely and effectively replaced under the condition of not influencing production, the operation is simple, and the replacement is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of valve maintenance, in particular to a device for replacing valves with air. Background Art

[0002] Valves are important components in pipeline systems and are widely used in many industries such as petroleum, chemical industry, metallurgy, power station, urban construction, and food. They are key components to ensure the normal operation of pipeline systems and safe and efficient production processes. In existing gas pipelines, flanged ball valves often need to be opened and closed. Once flanged ball valves age or fail, the gas pipelines need to be depressurized or production stopped before replacement, which is extremely unfavorable to production and unsafe. Utility Model Content

[0003] The utility model aims to provide a device for replacing valves with gas, wherein a threaded ball valve is connected to the flange ball valve of the main gas pipeline, and then a guide sleeve and a through core shaft are inserted into the threaded ball valve, so that the sealing head below the guide sleeve is extended under the flange ball valve, thereby sealing the flange ball valve, and then the original flange ball valve is removed and replaced with a new flange ball valve, so that the flange ball valve can be replaced safely and effectively without affecting production, and the operation is simple and the replacement is convenient.

[0004] To achieve the above-mentioned purpose, a device for replacing valves with gas is provided, comprising: a pipeline assembly, a connecting assembly and a sealing assembly, wherein the top of the pipeline assembly is provided with a connecting assembly, the top of the connecting assembly is provided with a sealing assembly, the pipeline assembly comprises a gas pipeline, a connecting head and a flange ball valve, the top of the gas pipeline is fixedly connected with a connecting head, the top of the connecting head is fixedly connected with a flange ball valve, the connecting assembly comprises a short section, a threaded ball valve, a connecting pipe, a side pipe, a pressure gauge and a vent pipe, the top of the short section is fixedly connected with a threaded ball valve, the top screw of the threaded ball valve A connecting pipe is connected with a thread, a side pipe is fixedly connected to the circumferential surface of the connecting pipe, a pressure gauge is fixedly connected to the side pipe, and a vent pipe is fixedly connected to the end of the side pipe away from the connecting pipe. The sealing assembly comprises a guide sleeve, a connecting sleeve, a handle, a sealing head, a through-core shaft, an upper nut and a lower nut. The connecting sleeve is sleeved on the circumferential surface of the guide sleeve, a handle is fixedly connected to the circumferential surface of the connecting sleeve, a sealing head is arranged below the guide sleeve, a through-core shaft is sleeved inside the guide sleeve, an upper nut is threadedly connected to the top of the through-core shaft, and a lower nut is threadedly connected to the bottom of the through-core shaft.

[0005] According to the device for replacing a valve with air, the connecting sleeve is threadedly connected to the top circumferential surface of the connecting pipe.

[0006] According to the device for replacing a valve with air, the sealing head is made of wear-resistant and corrosion-resistant rubber material, thereby improving the durability of the sealing head.

[0007] According to the device for replacing a valve while under gas pressure, the top of the flange ball valve is fixedly connected to the nipple by bolts.

[0008] According to the device for replacing a valve while under gas pressure, two handles are provided and symmetrically distributed on the circumferential surface of the connecting sleeve, facilitating the rotation of the connecting sleeve to fix it to the connecting pipe.

[0009] According to the device for replacing a valve while under gas pressure, the guide sleeve sequentially penetrates through the connecting pipe, the screw ball valve, the nipple, and the flange ball valve from top to bottom.

[0010] According to the device for replacing a valve while under gas pressure, the sealing head is located above the lower nut. The bottom of the through-core shaft is conical and penetrates through the sealing head vertically. When the upper nut is rotated, the through-core shaft moves downward, thereby squeezing the sealing head to seal the lower part of the flange ball valve.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing an air delivery pipe, a connector, a flange ball valve, a nipple, a screw ball valve, a connecting pipe, a side pipe, a pressure gauge, a blow-off pipe, a guide sleeve, a connecting sleeve, a handle, a sealing head, a through-core shaft, an upper nut, and a lower nut, a screw ball valve is connected to the flange ball valve of the main air delivery pipe, and then a guide sleeve and a through-core shaft are inserted into the screw ball valve, so that the sealing head below the guide sleeve extends into the lower part of the flange ball valve, thereby sealing the flange ball valve. Then, the original flange ball valve is removed and a new flange ball valve is replaced. The flange ball valve can be replaced safely and effectively without affecting production, with simple operation and convenient replacement.

[0012] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0014] Figure 1 It is the front view of the device for replacing a valve while under gas pressure of the present utility model;

[0015] Figure 2 It is the structural diagram of the pipeline assembly of the device for replacing a valve while under gas pressure of the present utility model;

[0016] Figure 3 It is the structural diagram of the connection assembly of the device for replacing a valve while under gas pressure of the present utility model;

[0017] Figure 4 It is the structural diagram of the sealing assembly of the device for replacing a valve while under gas pressure of the present utility model.

[0018] In the figure: 1. Pipeline assembly; 2. Connection assembly; 3. Sealing assembly; 101. Gas transmission pipe; 102. Connector; 103. Flange ball valve; 201. Nipple; 202. Threaded ball valve; 203. Connecting pipe; 204. Side pipe; 205. Pressure gauge; 206. Bleeder pipe; 301. Guide sleeve; 302. Connecting sleeve; 303. Handle; 304. Sealing head; 305. Through core shaft; 306. Upper nut; 307. Lower nut. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4 , the present invention provides a technical solution: a device for replacing a valve with gas, including: a pipeline assembly 1, a connection assembly 2 and a sealing assembly 3. A connection assembly 2 is arranged at the top of the pipeline assembly 1, and a sealing assembly 3 is arranged at the top of the connection assembly 2. The pipeline assembly 1 includes a gas transmission pipe 101, a connector 102 and a flange ball valve 103. The top of the gas transmission pipe 101 is fixedly connected with a connector 102, and the top of the connector 102 is fixedly connected with a flange ball valve 103.

[0021] The connection assembly 2 includes a nipple 201, a threaded ball valve 202, a connecting pipe 203, a side pipe 204, a pressure gauge 205 and a bleeder pipe 206. The top of the flange ball valve 103 is fixedly connected with the nipple 201 by bolts. The top of the nipple 201 is fixedly connected with a threaded ball valve 202. The top of the threaded ball valve 202 is threadedly connected with a connecting pipe 203. A side pipe 204 is fixedly connected to the circumferential surface of the connecting pipe 203. A pressure gauge 205 is fixedly connected to the side pipe 204 for displaying the internal pressure of the pipeline. A bleeder pipe 206 is fixedly connected to one end of the side pipe 204 away from the connecting pipe 203. A bleeder valve is arranged on the bleeder pipe 206, and the gas at the leakage point can be led to a safe place.

[0022] The sealing assembly 3 includes a guide sleeve 301, a connecting sleeve 302, a handle 303, a sealing head 304, a through-core shaft 305, an upper nut 306 and a lower nut 307. A connecting sleeve 302 is sleeved on the circumferential surface of the guide sleeve 301. The connecting sleeve 302 is threadedly connected to the circumferential surface of the top of the connecting pipe 203. A handle 303 is fixedly connected to the circumferential surface of the connecting sleeve 302. The number of the handles 303 is set to two and they are symmetrically distributed on the circumferential surface of the connecting sleeve 302, which is convenient for rotating the connecting sleeve 302 to fix it on the connecting pipe 203. A sealing head 304 is arranged below the guide sleeve 301. The sealing head 304 is made of wear-resistant and corrosion-resistant rubber material to improve the durability of the sealing head 304. A through-core shaft 305 is sleeved inside the guide sleeve 301. An upper nut 306 is threadedly connected to the top of the through-core shaft 305, and a lower nut 307 is threadedly connected to the bottom of the through-core shaft 305.

[0023] The sealing head 304 is located above the lower nut 307. The lower nut 307 prevents the sealing head 304 from falling into the gas transmission pipeline 101. The bottom of the through-core shaft 305 is conical and penetrates through the sealing head 304 vertically. When the upper nut 306 is rotated, the through-core shaft 305 moves downward, thereby squeezing the sealing head 304 to seal the lower part of the flange ball valve 103. The guide sleeve 301 penetrates through the connecting pipe 203, the screw ball valve 202, the short section 201 and the flange ball valve 103 from top to bottom in sequence.

[0024] Working principle: First, add a short section 201 above the flange ball valve 103, and at the same time add a screw ball valve 202 to the short section 201. Move the sealing head 304 into the connecting pipe 203, then connect the connecting pipe 203 to the screw ball valve 202, open the screw ball valve 202 and the flange ball valve 103, insert the sealing head 304 under the flange ball valve 103, and at the same time rotate the upper nut 306 to make the through-core shaft 305 move downward to squeeze the sealing head 304. Open the bleed valve in front of the pressure gauge 205 on the side pipe 204, and lead the gas at the leakage point to a safe place with the bleed pipe 206. Remove the flange screws under the flange ball valve 103 to separate it from the gas transmission pipe 101. Slowly pull out the flange ball valve 103 and the upper short section 201, screw ball valve 202, and connecting pipe 203 from the upper end of the guide sleeve 301, then install the replaced new valve in the reverse order, then loosen the sealing head 304 and pull out the sealing head 304. Finally, close the flange ball valve 103, and the replacement operation is completed.

[0025] The above has described the embodiments of the present invention in detail with reference to the drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present invention pertains, various changes can be made without departing from the purpose of the present invention.

Claims

1. A device for replacing a valve with air, characterized in that: include: A pipeline component (1), a connection component (2) and a sealing component (3), wherein the top of the pipeline component (1) is provided with a connection component (2), and the top of the connection component (2) is provided with a sealing component (3), wherein the pipeline component (1) comprises a gas pipeline (101), a connector (102) and a flange ball valve (103), wherein the top of the gas pipeline (101) is fixedly connected to the connector (102), and the top of the connector (102) is fixedly connected to the flange ball valve (103), wherein the connection component (2) comprises a short section (201), a threaded ball valve (202), a connecting pipe (203), a side pipe (204), a pressure gauge (205) and a vent pipe (206), wherein the top of the short section (201) is fixedly connected to the threaded ball valve (202), and the top of the threaded ball valve (202) is threadedly connected to the connecting pipe (203), and a flange ball valve (103) is fixedly connected to the circumferential surface of the connecting pipe (203). The side tube (204) is fixedly connected to the side tube (204), a pressure gauge (205) is fixedly connected to the side tube (204), an end of the side tube (204) away from the connecting tube (203) is fixedly connected to a venting tube (206), the sealing assembly (3) comprises a guide sleeve (301), a connecting sleeve (302), a handle (303), a sealing head (304), a through core shaft (305), an upper nut (306) and a lower nut (307), the guide sleeve (3 01) is sleeved with a connecting sleeve (302), a handle (303) is fixedly connected to the circumferential surface of the connecting sleeve (302), a sealing head (304) is arranged below the guide sleeve (301), a through-core shaft (305) is sleeved inside the guide sleeve (301), an upper nut (306) is threadedly connected to the top of the through-core shaft (305), and a lower nut (307) is threadedly connected to the bottom of the through-core shaft (305).

2. A device for replacing a valve with gas as claimed in claim 1, characterized in that: The sealing head (304) is located above the lower nut (307), and the bottom of the through-core shaft (305) is conical and passes through the sealing head (304) from top to bottom.

3. A device for replacing a valve with gas as claimed in claim 1, characterized in that: The top of the flange ball valve (103) is fixedly connected to the short joint (201) by bolts.

4. A device for replacing a valve with gas as claimed in claim 1, characterized in that: The connecting sleeve (302) is threadedly connected to the top circumferential surface of the connecting pipe (203).

5. A device for replacing a valve with gas as claimed in claim 1, characterized in that: The guide sleeve (301) passes through the connecting pipe (203), the threaded ball valve (202), the short joint (201) and the flange ball valve (103) in sequence from top to bottom.

6. A device for replacing a valve with gas as claimed in claim 1, characterized in that: The sealing head (304) is made of wear-resistant and corrosion-resistant rubber material.

7. A device for replacing a valve with gas as claimed in claim 1, characterized in that: The number of the handles (303) is two and they are symmetrically distributed on the circumferential surface of the connecting sleeve (302).

Images