Pipeline ball valve structure with good sealing performance

Abstract

The utility model discloses a pipeline ball valve structure with good sealing performance, which comprises a ball valve body, the two ends of the ball valve body are fixedly provided with assembly flange plates which are connected into a whole, a plurality of reinforcing rods are fixedly connected between the two assembly flange plates at equal intervals, the middle parts of the two ends of the ball valve body are fixedly provided with connecting ferrules, and the connecting ferrules are fixedly connected with the ball valve body. The connecting ferrule is connected with the pipeline in a nested mode, a sealing ring is arranged at the joint of the connecting ferrule and the pipeline in a sleeved mode, and an oil seal groove is formed in the inner wall of the connecting ferrule. The connecting ferrule is connected with the pipeline in a sleeved mode, sealing oil is injected into the oil sealing groove formed in the inner wall of the connecting ferrule, oil sealing between the pipeline and the ball valve body is achieved, the sealing performance of connection between the pipeline and the ball valve is effectively improved, the safety in the chemical gas conveying process is improved, and through the installed gas tightness sensor, the sealing performance of the pipeline and the ball valve is improved. According to the pipeline ball valve, the pipeline connecting part can be detected in real time, detection data are analyzed and processed through the ball valve controller, and the safety of the pipeline ball valve in the using process is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical pipelines, and particularly relates to a pipeline ball valve structure with good sealing performance. Background Technique

[0002] For current chemical pipelines, in order to control fluids and gases, a ball valve is generally installed in the middle of the chemical pipeline for pipeline control.

[0003] After retrieval, a coal chemical pipeline ball valve is disclosed according to the publication number "CN221482719U", including a coal chemical pipeline ball valve. On the bottom of the coal chemical pipeline ball valve, connection device components are respectively connected on the left and right sides. Inside each of the connection device components, a flange sealing component is provided. Through the flange sealing components and connection device components on both sides of the coal chemical pipeline ball valve, two-layer fixed connection protection can be provided for the connection between the external device and the main body.

[0004] In order to improve the sealing performance, the above-mentioned ball valve adopts the cooperation of flange sealing components and connection device components to achieve the effect of two-layer fixed connection and sealing. However, during the use process, we found that only through the mechanical seal of the flange, during long-term use, due to mechanical wear, gaps are likely to appear, thus affecting the sealing performance. At the same time, the sealing performance of the connection part is not monitored, affecting the safety of the use of the pipeline ball valve. Therefore, we designed a pipeline ball valve structure with good sealing performance. Content of the Utility Model

[0005] The purpose of the utility model is to provide a pipeline ball valve structure with good sealing performance to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A pipeline ball valve structure with good sealing performance, including a ball valve body. At both ends of the ball valve body, assembly flange plates that are integrally connected are fixedly provided. Between the two assembly flange plates, multiple reinforcing rods are fixedly connected at equal intervals. In the middle of both ends of the ball valve body, connection sleeves are fixedly provided. The connection sleeves are nested with connection pipelines. And an annular oil seal groove is opened in the middle of the connection sleeves. Sealing oil is filled in the annular oil seal groove. Sealing rings are embedded on both sides of the inner wall of the connection sleeves. The sealing rings are sleeved and connected with the connection pipelines.

[0007] Preferably, an oil injection hole communicating with the oil seal groove is opened at the top of the connection sleeve. A sealing plug is nested in the oil injection hole.

[0008] Preferably, an airtightness sensor is fixedly installed at the connection between the connection sleeve and the pipeline. A ball valve controller is fixedly installed on the front of the ball valve body. The airtightness sensor is electrically connected to the ball valve controller.

[0009] Preferably, connection heads are fixedly provided at both ends of the reinforcing rod, connection holes are formed in the side surfaces of the two assembly flange plates, and the connection heads are inserted into the connection holes.

[0010] Preferably, an installation groove is formed in the middle of the connection head, clamping blocks are inserted through both sides of the installation groove, a return spring is fixedly installed between the two clamping blocks, clamping grooves are formed in both sides of the inner wall of the connection hole, and the two clamping blocks are snap-fitted with the corresponding clamping grooves.

[0011] Preferably, the size of the end of the connection head is the same as the inner diameter of the connection hole.

[0012] Technical effects and advantages of the present utility model:

[0013] 1. The connection sleeve is sleeved and connected with the pipeline, and the sealing oil injected into the oil seal groove formed in the inner wall of the connection sleeve realizes the oil seal between the pipeline and the ball valve body, effectively improving the sealing performance of the connection between the pipeline and the ball valve, and improving the safety during the chemical gas transportation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a pipeline ball valve structure with good sealing performance according to the present utility model.

[0015] Figure 2 It is a structural schematic diagram of the connection sleeve and the pipeline socket connection structure of a pipeline ball valve structure with good sealing performance according to the present utility model.

[0016] Figure 3 It is a pipeline ball valve structure with good sealing performance according to the present utility model Figure 2 Partial enlarged view at A in the figure.

[0017] In the figure: 1. Ball valve body; 2. Assembly flange plate; 3. Reinforcing rod; 4. Ball valve controller; 5. Connection sleeve; 6. Oil seal groove; 7. Air tightness sensor; 8. Sealing plug; 9. Sealing ring; 10. Connection hole; 11. Connection head; 12. Installation groove; 13. Return spring; 14. Clamping groove; 15. Clamping block; 16. Connection pipeline. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0019] The present utility model provides as Figures 1-3A pipeline ball valve structure with good sealing performance is shown, which includes a ball valve body 1. At both ends of the ball valve body 1, integrally fixed assembly flange plates 2 are provided. Between the two assembly flange plates 2, a plurality of reinforcing rods 3 are fixedly connected at equal intervals. In the middle of both ends of the ball valve body 1, connection collar 5 are fixedly provided. The connection collar 5 is nestedly connected with the connection pipeline 16. And an annular oil seal groove 6 is opened in the middle of the connection collar 5. Sealing oil is filled in the annular oil seal groove 6. On both sides of the inner wall of the connection collar 5, sealing rings 9 are embedded. The sealing rings 9 are sleeved and connected with the connection pipeline 16.

[0020] Specifically, through the nested connection of the connection collar 5 and the connection pipeline 16, and through the sealing oil injected into the oil seal groove 6 opened on the inner wall of the connection collar 5, the oil seal between the pipeline and the ball valve body 1 is realized, effectively improving the sealing performance of the connection between the pipeline and the ball valve, and improving the safety during the transportation of chemical gases.

[0021] According to Figure 1 、 Figure 2 and Figure 3 shown, an oil injection hole communicating with the oil seal groove 6 is opened at the top of the connection collar 5. A sealing plug 8 is nested in the oil injection hole. Through the opened oil injection hole, it is convenient to inject sealing oil into the oil seal groove 6.

[0022] An airtightness sensor 7 is fixedly installed at the connection between the connection collar 5 and the pipeline. A ball valve controller 4 is fixedly installed on the front of the ball valve body 1. The airtightness sensor 7 is electrically connected to the ball valve controller 4. Through the setting of the airtightness sensor 7, it is possible to detect the gas at the connection part between the pipeline and the ball valve body 1, avoiding leakage at the connection part and affecting the safety of use.

[0023] Connection heads 11 are fixedly provided at both ends of the reinforcing rod 3. Connection holes 10 are opened on the sides of both assembly flange plates 2. The connection heads 11 are inserted into the connection holes 10.

[0024] An installation groove 12 is opened in the middle of the connection head 11. On both sides of the installation groove 12, clamping blocks 15 are inserted. A return spring 13 is fixedly installed between the two clamping blocks 15. On both sides of the inner wall of the connection hole 10, clamping grooves 14 are opened. The two clamping blocks 15 are snap-fitted with the corresponding clamping grooves 14. By the extrusion of the return spring 13, the clamping blocks 15 are snap-fitted and fixed with the clamping grooves 14, which is convenient to fix the connection head 11 inside the connection hole 10.

[0025] The size of the end of the connection head 11 is the same as the inner diameter of the connection hole 10. By making the end of the connection head 11 have the same inner diameter as the connection hole 10, the gap at the connection between the connection head 11 and the connection hole 10 is effectively reduced, improving the stability of the connection part.

[0026] Working principle of the utility model: When the pipeline ball valve is connected to the pipeline, first, one end of the pipeline is sleeved with the connecting collar 5, then it is connected to the pipeline through the assembly flange 2. Then, the sealing plug 8 is manually pulled out, and sealing oil is injected into the oil seal groove 6 through the oil injection hole. The oil seal design between the connecting collar 5 and the pipeline is realized through the sealing oil. At the same time, further sealing is achieved through the cooperation of the sealing ring 9, improving the sealing performance of the connection between the ball valve body 1 and the pipeline, thus enhancing the sealing effect at the ball valve connection during the transportation of chemical gases. During the use of the ball valve body 1, the airtightness sensor 7 installed on the side wall of the connecting collar 5 detects the connection part, improving the safety of the use of the ball valve body 1.

[0027] The content not detailedly described in this specification belongs to the prior art well-known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the utility model. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

Claims

1. A pipeline ball valve structure with good sealing performance, including a ball valve body (1), both ends of the ball valve body (1) are fixedly provided with integrated assembly flange plates (2), and a plurality of reinforcing rods (3) are fixedly connected between the two assembly flange plates (2) at equal intervals. It is characterized in that, At the middle parts of both ends of the ball valve body (1), connecting collars (5) are fixedly arranged. The connecting collars (5) are nested and connected with connecting pipes (16). An annular oil seal groove (6) is opened in the middle of the connecting collar (5). The annular oil seal groove (6) is filled with sealing oil. Sealing rings (9) are embedded on both sides of the inner wall of the connecting collar (5). The sealing rings (9) are sleeved and connected with the connecting pipes (16).

2. A pipeline ball valve structure with good sealing performance according to claim 1, characterized in that, An oil injection hole communicating with the annular oil seal groove (6) is opened at the top end of the connecting collar (5). A sealing plug (8) is nested in the oil injection hole.

3. A pipeline ball valve structure with good sealing performance according to claim 1, characterized in that, An airtightness sensor (7) is fixedly installed at the connection between the connecting collar (5) and the pipe. A ball valve controller (4) is fixedly installed on the front surface of the ball valve body (1). The airtightness sensor (7) is electrically connected with the ball valve controller (4).

4. A pipeline ball valve structure with good sealing performance according to claim 1, characterized in that, Connection heads (11) are fixedly arranged at both ends of the reinforcing rod (3). Connection holes (10) are opened on the sides of the two assembly flange plates (2). The connection heads (11) are inserted and connected with the connection holes (10).

5. A pipeline ball valve structure with good sealing performance according to claim 4, characterized in that, An installation groove (12) is opened in the middle of the connection head (11). Clamping blocks (15) are inserted and connected on both sides of the installation groove (12). A return spring (13) is fixedly installed between the two clamping blocks (15). Claw slots (14) are opened on both sides of the inner wall of the connection hole (10). The two clamping blocks (15) are clamped and connected with the corresponding claw slots (14).

6. A pipeline ball valve structure with good sealing performance according to claim 5, characterized in that, The dimension at the end of the connection head (11) is the same as the inner diameter of the connection hole (10).

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