Ball valve blowdown drainage collecting device

Abstract

The utility model provides a ball valve blow-down drainage collecting device which comprises at least one drainage conversion support used for being connected with a blow-down nozzle, a distributor and a collector with a filter element, the drainage conversion support is connected with the distributor through a pipeline, the distributor is connected with the collector through a pipeline, and the filter element is connected with the collector through a pipeline. And a discharge hole is formed in the collector. Dirt discharged by the ball valve is drained to the collector to be filtered, the pollution discharge process is converted into gas drainage and dirt collection from an on-site pollution discharge mode, the dirt is collected into the device in a centralized mode, and natural gas in a valve cavity is emptied on site after being filtered. Dirt is collected, splashing is prevented, and pollution is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of waste collection equipment, in particular to a ball valve waste drainage collection device. Background Art

[0002] Ball valves account for more than 90% of the natural gas stations. Regular inspections and maintenance require sewage discharge operations. When draining the ball valves, sewage is usually discharged directly on site by opening the sewage nozzle of the ball valve, resulting in splashing of sewage and serious pollution. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a ball valve sewage drainage collection device in view of the deficiencies in the prior art.

[0004] The utility model solves the above-mentioned technical problems through the following technical solutions: a ball valve sewage drainage collection device, comprising: at least one drainage conversion bracket connected to a sewage discharge nozzle, a distributor, and a collector with a filter element, wherein the drainage conversion bracket is connected to the distributor through a pipeline, and the distributor is connected to the collector through a pipeline, and a discharge hole is provided on the collector.

[0005] The beneficial effects of the technical solution of the utility model are: the dirt discharged by the ball valve is drained to the collector for filtration, the sewage discharge process is converted from the local sewage discharge mode to gas drainage and sewage collection, the sewage is collected in the device, and the natural gas in the valve cavity is emptied on the spot after filtering. The sewage is collected to prevent splashing and pollution.

[0006] Furthermore, the drainage conversion stent is an open-and-close drainage conversion stent or a threaded drainage conversion stent.

[0007] The beneficial effect of adopting the above further technical solution is that the provision of the drainage conversion bracket facilitates the rapid connection of the ball valve sewage drainage collection device with the sewage discharge nozzle of the ball valve.

[0008] Furthermore, the collector is installed on an integrated trolley.

[0009] The beneficial effect of adopting the above further technical solution is that the collector is installed on the integrated trolley, which facilitates the movement and transportation of the collector.

[0010] Furthermore, both ends of the pipeline are provided with threaded quick-release connectors.

[0011] The beneficial effect of adopting the above further technical solution is that the provision of the threaded quick-release connector facilitates pipeline installation and maintenance.

[0012] Furthermore, the distributor is a three-input and two-output distributor.

[0013] The beneficial effect of adopting the above further technical solution is that the distributor is a three-inlet and two-outlet distributor, which is convenient for the distributor to be connected to multiple valves and drainage conversion brackets at the same time, thereby improving work efficiency.

[0014] Furthermore, the collector comprises: a collector cylinder, a filter element, and a filter element fixing bracket, wherein the filter element fixing bracket is installed in the collector cylinder, the filter element is installed in the filter element fixing bracket, and the distributor is connected to the collector cylinder through a pipeline.

[0015] The beneficial effects of adopting the above further technical solution are: the setting of the filter element fixing bracket facilitates the installation and maintenance of the filter element. The dirt discharged by the ball valve is drained to the collector for filtration, and the sewage discharge process is converted from the local sewage discharge mode to gas drainage and sewage collection. The dirt is collected in the device, and the natural gas in the valve cavity is discharged on site after filtering.

[0016] Furthermore, the filter element fixing bracket and the filter element are both cylindrical structures, and a plurality of through holes are provided on the side wall of the filter element fixing bracket.

[0017] The beneficial effect of adopting the above further technical solution is that the filter element fixing bracket is a cylindrical space, and annular through holes are distributed on the cylinder wall, which facilitates the drainage gas to flow evenly to the inside of the filter element and reduces the possibility of local damage to the filter element.

[0018] Furthermore, blind plates are provided at both ends of the collector cylinder, and a nitrile rubber sealing gasket is provided between the filter element and the blind plate.

[0019] The beneficial effects of adopting the above further technical solution are: the blind plate is provided to facilitate the installation and maintenance of the filter element and the replacement of the filter element. The nitrile rubber sealing pad is used to improve the sealing performance of the collector.

[0020] Furthermore, there is a gap between the filter element fixing bracket and the collector cylinder.

[0021] The beneficial effect of adopting the above further technical solution is that it is easy to collect dirt.

[0022] Furthermore, the collector is provided with an observation window and a drainage gas inlet, the distributor is connected to the drainage gas inlet through a pipeline, the discharge hole is located below the collector, and the diameter of the discharge hole is 159 mm.

[0023] The beneficial effect of adopting the above further technical solution is that the noise is reduced by dispersing downwards through the discharge hole below the cylinder.

[0024] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a ball valve sewage drainage and collection device provided in an embodiment of the utility model.

[0026] Figure 2 This is one of the structural schematic diagrams of the collector provided in the embodiment of the utility model.

[0027] Figure 3 The second schematic diagram of the structure of the collector provided in the embodiment of the utility model.

[0028] Figure 4 The third structural schematic diagram of the collector provided in the embodiment of the utility model.

[0029] Figure 5 The fourth structural schematic diagram of the collector provided in the embodiment of the utility model.

[0030] Figure 6 The fifth structural schematic diagram of the collector provided in the embodiment of the utility model.

[0031] Figure 7 The sixth structural schematic diagram of the collector provided in the embodiment of the utility model.

[0032] Figure 8 The seventh structural schematic diagram of the collector provided in the embodiment of the utility model.

[0033] Fig. 9 This is one of the structural schematic diagrams of the drainage conversion bracket provided in the embodiment of the utility model.

[0034] Fig.10 The second structural schematic diagram of the drainage conversion bracket provided in the embodiment of the utility model.

[0035] Fig.11 The third structural schematic diagram of the drainage conversion bracket provided in the embodiment of the utility model.

[0036] Fig.12 The fourth structural schematic diagram of the drainage conversion bracket provided in the embodiment of the utility model.

[0037] Fig.13 This is the fifth structural schematic diagram of the drainage conversion bracket provided in the embodiment of the utility model.

[0038] Fig.14 The sixth structural schematic diagram of the drainage conversion bracket provided in the embodiment of the utility model.

[0039] Fig.15 The seventh structural schematic diagram of the drainage conversion bracket provided in the embodiment of the utility model.

[0040] Fig.16 The eighth structural schematic diagram of the drainage conversion bracket provided in the embodiment of the utility model.

[0041] Fig.17 The ninth structural schematic diagram of the drainage conversion bracket provided in the embodiment of the utility model.

[0042] Explanation of the accompanying figures: 1. Drainage conversion bracket; 2. Distributor; 3. Collector; 4. Drain nozzle; 5. Ball valve; 6. Filter element; 7. Discharge hole; 8. Integrated trolley; 9. Collector cylinder; 10. Filter element fixing bracket; 11. Blind plate; 12. Nitrile rubber sealing gasket; 13. Observation window; 14. Drainage gas inlet; 15. Upper opening and closing bracket; 16. Lower opening and closing bracket; 17. Drainage inlet; 18. Drainage outlet; 20. Connecting bolt; 21. Fixing top screw; 22. High-pressure hose; 23. Inspection port. DETAILED DESCRIPTION

[0043] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The embodiments given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0044] like Figures 1 to 17 As shown, an embodiment of the utility model provides a ball valve sewage drainage collection device, including: at least one drainage conversion bracket 1 for connecting to a sewage nozzle 4, a distributor 2, and a collector 3 with a filter element 6, wherein the drainage conversion bracket 1 is connected to the distributor 2 through a pipeline, and the distributor 2 is connected to the collector 3 through a pipeline, and the collector 3 is provided with a discharge hole 7.

[0045] The beneficial effects of the technical solution of the utility model are: the dirt discharged by the ball valve is drained to the collector for filtration, the sewage discharge process is converted from the local sewage discharge mode to gas drainage and sewage collection, the sewage is collected in the device, and the natural gas in the valve cavity is emptied on the spot after filtering. The sewage is collected to prevent splashing and pollution.

[0046] The sewage discharge nozzle 4 is installed on the station field process valve, and the station field process valve is a ball valve with two types of sewage discharge nozzles: a smooth hole and a threaded inner hole (threaded hole).

[0047] Collector cylinder size: φ325×12mm.

[0048] Ball valves account for more than 90% of the natural gas stations, and regular inspections and maintenance require sewage discharge operations. For a long time, local sewage discharge has caused operator injuries, secondary pollution, noise interference and other problems that have not been completely solved. The new ball valve sewage drainage and collection device (ball valve sewage drainage and collection device) designed in the utility model is intended to solve the above problems in a targeted manner.

[0049] This device (ball valve sewage drainage collection device) includes three parts: drainage conversion bracket 1, high-pressure hose 22 and collector 3. By counting the existing ball valve sewage nozzles in natural gas stations and conducting classification research, drainage conversion brackets corresponding to two types (opening and closing type, threaded connection type) and nine specifications are made. Drainage conversion brackets with similar specifications are used to match sewage nozzles of various specifications, and the sewage gas is transported to the collector 3 through the high-pressure hose 22. The collector 3 releases the high-pressure gas containing dirt in the valve cavity into the atmosphere after silencing and filtering, and the dirt is collected in the filter element. This device changes the original on-site sewage discharge method and provides a noise reduction and environmentally friendly method for gas drainage to the collector, effectively solving the various drawbacks of the original method.

[0050] Working characteristics of this device:

[0051] 1. Improve safety performance, stable and controllable operation. The operating radius of the device is expanded to 10 meters, which can prevent the operator from being accidentally sprayed with dirt and injured. The sewage discharge process is through the collector observation window (observation window 13) to adjust the opening of the sewage discharge nozzle (sewage discharge nozzle 4).

[0052] 2. Achieve clean production and effectively collect waste. Avoid the traditional on-site sewage discharge method, which causes pollution to equipment, surrounding facilities and working environment. The filter element of this device can be replaced at any time, and the waste is centrally disposed of as hazardous waste.

[0053] 3. Improve working conditions and reduce noise interference. The equipment has a significant noise reduction effect, from 105db for local sewage discharge to less than 45db. The airflow during the sewage discharge process is stable, protecting the health of workers to the greatest extent.

[0054] 4. Technical improvements and upgrades effectively solve the problems of offset drainage holes and uncontrollable double-hole discharge. The drainage conversion bracket of this device can offset the drainage hole, seal the double-hole drainage nozzle with a single hole, and drain the single hole, perfectly solving the sealing and control problems of drainage nozzle drainage.

[0055] 5. Improve work efficiency and reduce labor intensity. The external distributor of this device can be multi-channel controlled, and can simultaneously undertake sewage discharge operations of up to 3 valves, reducing subsequent cleaning work of equipment and sites, and improving work efficiency by more than 40%.

[0056] 6. Easy maintenance and sufficient supply of accessories. The device is easy to clean and maintain. The filter element can be directly replaced after it is dirty. The required joints, seals, high-pressure hoses 22, etc. are all national standard parts.

[0057] The utility model provides a ball valve sewage drainage collection device to solve the following problems:

[0058] 1. The specifications of the adapters connected to the drain nozzle 4 of the ball valve 5 are inconsistent. Not only are the sizes different, but the discharge methods are also different. It is necessary to design multiple adapters to connect the collection device;

[0059] 2. After the dirt passes through the adapter bracket and the connecting hose, a filtering device should be used to collect the dirt to prevent secondary pollution;

[0060] 3. The replacement and cleaning of the collection and filtering device should be more convenient;

[0061] 4. The collection process should minimize noise, and a built-in noise reduction device is required.

[0062] The ball valve 5 in the station process equipment has a sewage interface and a sewage nozzle 4 installed at the bottom of the equipment. By counting the sewage nozzles in all workplaces and conducting research and classification, drainage conversion brackets corresponding to different specifications are made, and then connected to the collector through a high-pressure hose. The collector has the function of silencing and noise reduction. The sewage discharge process is converted from local sewage discharge to gas drainage and sewage collection. The sewage is collected in the device, and the natural gas in the valve cavity is filtered and discharged on-site (10 meters away from the equipment).

[0063] like Figures 1 to 17 As shown, further, the drainage conversion stent 1 is an open-and-close drainage conversion stent or a threaded drainage conversion stent.

[0064] The beneficial effect of adopting the above further technical solution is that the provision of the drainage conversion bracket facilitates the rapid connection of the ball valve sewage drainage collection device with the sewage discharge nozzle of the ball valve.

[0065] Among them, the drainage conversion bracket 1 is divided into two types: opening and closing type and threaded connection type. The opening and closing type: 45# steel; the threaded connection type: 304 stainless steel.

[0066] This device (ball valve sewage drainage collection device) is mainly used to connect with the sewage nozzle of the valve to change the discharge mode and control the sewage flow path. Before the sewage discharge operation, the drainage conversion bracket is locked into one with the sewage nozzle, and the sewage outlet is connected to the conversion bracket interface to achieve outward drainage. The high-pressure gas mixed with sewage in the valve cavity passes through the sewage nozzle conversion bracket (drainage conversion bracket 1) and flows to the collector according to the established path, completing the sewage drainage, sewage collection and gas discharge process. The existing valve sewage nozzle has two structures: a smooth hole and a threaded inner hole. There are two types of drainage conversion brackets designed for different hole structures: open and close type and threaded matching type, and nine specifications.

[0067] The design of the opening and closing drainage conversion bracket is divided into two parts, the upper part plays the role of fixed connection and fastening, and the lower part is designed with drainage interfaces of different specifications according to the specifications and types of the sewage nozzles. High-pressure gas and sewage flow through the channels designed on the drainage conversion bracket. Since the position of the light hole at the end of the sewage nozzle deviates from the center line and the sizes of sewage nozzles of different specifications of valves are different, seven types of sewage nozzles in use have been statistically sorted out, and seven corresponding opening and closing drainage conversion brackets with different types of interfaces have been designed accordingly. A unified M20*1.5mm hollow connector is installed at the end outlet of the conversion bracket (drainage conversion bracket). After connecting the high-pressure hose, the high-pressure gas mixed with sewage in the valve cavity relies on the internal pressure to achieve outward drainage and discharge.

[0068] The threaded drainage conversion bracket is installed with a ferrule conversion joint through the internal thread at the end of the sewage nozzle, and the sewage gas and waste flow according to the pipeline channel; the ferrule conversion joint is connected to the internal thread at the end of the sewage nozzle through a ferrule joint (two specifications of 1 / 4NPT and 3 / 8NPT), and the middle part is converted by machined custom ferrule workpiece, and a hollow unified M20*1.5mm hollow joint is installed at the end outlet to achieve quick connection with the high-pressure hose and drainage.

[0069] The opening and closing drainage conversion bracket may include: an upper opening and closing bracket 15, a lower opening and closing bracket 16, a drainage inlet 17, a drainage outlet 18, a sealing gasket, a connecting bolt 20, and a fixing top screw 21. The specifications of the upper opening and closing bracket 15 and the lower opening and closing bracket 16 are: matching 7 specifications of sewage nozzles in the range of NPT1 / 4-1.5, and the material can be 45# steel with heat treatment blackening process.

[0070] The drainage inlet 17 can be eccentrically arranged to match the position of the sewage discharge nozzle of the valve.

[0071] The upper opening and closing bracket 15 and the lower opening and closing bracket 16 may both be U-shaped structures, and the upper opening and closing bracket 15 and the lower opening and closing bracket 16 are butted against each other via connecting bolts.

[0072] The specification range of the drainage inlet 17 can be φ4.0-18.5mm, 7 specifications. The specification of the drainage outlet 18 is 1 / 2NPT internal thread, and the installation conversion joint is 1 / 2NPT-M20×1.5. The sealing gasket varies according to the internal size of the bracket 30×45mm, and the material is polytetrafluoroethylene plate 1.5-3mm. The connecting bolt 20 is hexagonal M10×85, and the fixing top screw 21 uses M12-24 hexagonal bolts with a length of 55-85mm. The 45° cone surface of some ends is processed to form a line seal with the light hole of the sewage nozzle.

[0073] The threaded connection drainage conversion bracket can be: threaded connection bracket (specification one) 1 / 4NPT terminal connector + ferrule + M20×1.5mm, material 304 stainless steel, threaded connection bracket (specification two) 3 / 8NPT terminal connector + ferrule + M20×1.5mm, material 304 stainless steel.

[0074] Working characteristics of drainage conversion stent:

[0075] 1. Realize the conversion of sewage discharge mode. Change the local sewage discharge mode, lock the drainage conversion bracket and the sewage discharge nozzle into one, and the sewage flows to the collector according to the designed path. The conversion bracket provides technical support for this device and provides a prerequisite for drainage and sewage discharge.

[0076] 2. Meet the needs of different occasions. According to the two structures of the existing valve drain nozzle end, namely, the light hole and the threaded inner hole, we have researched and designed two types of drainage conversion brackets, the open-close type and the threaded matching type, and nine specifications. The corresponding drainage conversion bracket can be selected and used according to the drain nozzles of different specifications of equipment.

[0077] 3. Design, development and practice improvement to effectively solve three problems:

[0078] (1) By designing and developing the interface and channel of the conversion bracket, it is ensured that the interface of the drainage conversion bracket and the sewage outlet are matched and connected during operation, and the installation is reliable, so as to solve the problem of the sewage outlet deviating from the center line.

[0079] (2) A 1.5-3.0 mm thick polytetrafluoroethylene gasket is installed between the conversion bracket interface and the sewage nozzle to ensure effective compaction between the two under the action of the top screw to solve the sealing problem of the drainage interface.

[0080] (3) For the double-hole discharge of the sewage nozzle, the end of the fixed top screw of the conversion bracket is processed with a 45° cone surface, which cooperates with the light hole of the sewage nozzle to form a line seal, realizing single-hole sealing + single-hole drainage, and solving the uncontrollable problem of the double-hole discharge of the valve sewage nozzle.

[0081] (4) Reliable and easy to operate. Two types of drainage conversion brackets are designed: open-close type and threaded type. They are installed by "threaded connection + top screw fixing", which is convenient, labor-saving and easy to operate, ensuring the safety and reliability of the working process.

[0082] The opening and closing drainage conversion bracket consists of two parts, the upper part is the frame, which is connected and fastened to the valve drain nozzle (the drain nozzle of the ball valve), and the lower part is designed with drainage interfaces (drainage access ports) of different specifications according to the specifications and types of the drain nozzle. Since the position of the light hole at the end of the drain nozzle deviates from the center line and the sizes of the drain nozzles of valves of different specifications are different, 7 types of drain nozzles in use have been sorted out, and the corresponding opening and closing drainage conversion brackets with seven different types of interfaces have been designed accordingly. A unified M20*1.5mm hollow connector is installed at the outlet of the end of the conversion bracket, and the high-pressure hose is connected to realize the drainage and discharge of high-pressure gas and dirt in the valve cavity.

[0083] The threaded drainage conversion bracket can be directly installed on the internal thread at the end of the valve drain nozzle. Two specifications (1 / 4NPT and 3 / 8NPT) are designed after sorting out. One end of the bracket is connected to the internal thread at the end of the valve drain nozzle, and the other end is a quick-connect connector to achieve quick connection with the high-pressure hose for drainage.

[0084] For NPT3 / 8: 1. Solution: Drainage and discharge sewage, using a drainage nozzle conversion frame (open and close type) / clamp. 2. The clamp is fixedly installed and integrated with the sewage nozzle, and the straight hole on the clamp is embedded in the sewage nozzle light hole to achieve drainage and sewage discharge according to the reserved channel. 3. Use a uniform specification joint and connect it to the collector at the end through a rubber hose. 4. As the exhaust hole is located upward, ensure the installation operation of the clamp, the normal flow of sewage and the sealing of the joint surface. Configuration details: 1. Select: 1#. 2. Configuration details: (1) Design an outer diameter φ4.4mm (offset) diversion interface and embed it into the sewage nozzle light hole. (2) Use the hexagonal surface and the 1.5-3.0mm thick PTFE pad of the clamp to form a seal. (3) Use a 1 / 2NPT-M20*1.5 (inner hole 8mm) uniform specification external joint. 3. Steps: Drainage first, sewage collection, and finally gas discharge.

[0085] For NPT1 / 2: Same as above, configuration details: 1. Select: 2#. 2. Configuration details: (1) Design a flow guide interface with an outer diameter of φ5.3mm (offset) and embed it into the drain nozzle hole. (2) Others are the same as above.

[0086] 1. For the 2*φ6.4mm double-discharge hole sewage nozzle, in order to avoid pollution and unsafe operation caused by simultaneous discharge on both sides, the upper part of the drainage conversion frame uses a top screw and the end is processed at 45 degrees. The 45-degree bevel contacts the sewage nozzle light hole, forming a line seal at the joint of the light hole. The top screw plays a dual role in the installation and fixing of the drainage conversion frame and the single hole sealing. 2. Others are the same as above. Configuration details: 1. Selection: 3#. 2. Configuration details: (1) Design an outer diameter φ6.0mm (offset) diversion interface and embed it into the sewage nozzle light hole. (2) Others are the same as above.

[0087] For NPT3 / 4: Same as above, configuration details: 1. Select: 4#. 2. Configuration details: (1) Design a flow guide interface with an outer diameter of φ6.8mm (offset) and embed it into the drain nozzle hole. (2) Others are the same as above.

[0088] For NPT1: Same as above, configuration details: 1. Select: 5#. 2. Configuration details: (1) Design a flow guide interface with an outer diameter of φ10mm (offset) and embed it into the drain nozzle hole. (2) Others are the same as above.

[0089] 1. For the 2*φ15mm double-discharge hole sewage nozzle, in order to avoid pollution and unsafe operation caused by simultaneous discharge on both sides, the upper part of the drainage conversion frame uses a top screw and the end is processed at 45 degrees. The 45-degree bevel contacts the sewage nozzle light hole, forming a line seal at the joint of the light hole. The top screw plays a dual role in the installation and fixing of the drainage conversion frame and the single hole sealing. 2. Others are the same as above. Configuration details: 1. Select: 6#. 2. Configuration details: (1) Design an outer diameter φ14.5mm (offset) diversion interface and embed it into the sewage nozzle light hole. (2) Others are the same as above.

[0090] For NPT1.5, the same as above, configuration details: 1. Select: 7#. 2. Configuration details: (1) Design an outer diameter φ18mm (offset) flow guide interface and embed it into the drain nozzle hole. (2) Others are the same as above.

[0091] For NPT3 / 4: 1. Solution: For drainage and sewage discharge, use a threaded adapter.

[0092] 2. The conversion joint is installed at the end of the sewage nozzle to achieve drainage and sewage discharge according to the channel. 3. Use a uniform specification joint and connect it to the end collector through a rubber hose. Configuration details: 1. Select: 1#. 2. Configuration details: Customize 1 / 4NPT ferrule joint, and convert the end to M20*1.5 universal hollow joint. Others are the same as above.

[0093] For NPT1.5: Same as above, configuration details: 1. Select: 2#. 2. Configuration details: Customize 3 / 8NPT ferrule connector, and convert the end to M20*1.5 universal hollow connector. Others are the same as above.

[0094] like Figures 1 to 17 As shown, further, the collector 3 is installed on an integrated trolley 8.

[0095] The beneficial effect of adopting the above further technical solution is that the collector is installed on the integrated trolley, which facilitates the movement and transportation of the collector.

[0096] Among them, the collector-matching trolley (integrated trolley 8) is provided with 4 casters at the bottom.

[0097] like Figures 1 to 17As shown, further, both ends of the pipeline are provided with threaded quick-release connectors.

[0098] The beneficial effect of adopting the above further technical solution is that the provision of the threaded quick-release connector facilitates pipeline installation and maintenance.

[0099] The drainage conversion bracket 1 and the distributor 2 are connected by a high-pressure hose 22. The design pressure of the high-pressure hose 22 is 32MPa and the length is 10m. Both ends of the high-pressure hose 22 are equipped with M20*1.5mm internal thread quick-release connectors (threaded quick-release connectors), with an outer diameter of 15mm and an inner diameter of 6mm. The steel wire reinforced nylon hose is treated with three layers of reinforcement inside and outside.

[0100] like Figures 1 to 17 As shown, further, the distributor 2 is a three-input and two-output distributor.

[0101] The beneficial effect of adopting the above further technical solution is that the distributor is a three-inlet and two-outlet distributor, which is convenient for the distributor to be connected to multiple valves and drainage conversion brackets at the same time, thereby improving work efficiency.

[0102] Collector-inlet distributor (distributor 2) has three inlets and two outlets, and is controlled by split circuits.

[0103] like Figures 1 to 17 As shown, further, the collector 3 includes: a collector cylinder 9, a filter element 6, and a filter element fixing bracket 10, the filter element fixing bracket 10 is installed in the collector cylinder 9, the filter element 6 is installed in the filter element fixing bracket 10, and the distributor 2 is connected to the collector cylinder 9 through a pipeline.

[0104] The beneficial effects of adopting the above further technical solution are: the setting of the filter element fixing bracket facilitates the installation and maintenance of the filter element. The dirt discharged by the ball valve is drained to the collector for filtration, and the sewage discharge process is converted from the local sewage discharge mode to gas drainage and sewage collection. The dirt is collected in the device, and the natural gas in the valve cavity is discharged on site after filtering.

[0105] The size of the collector cylinder 9 may be φ325×12 mm, and the material may be L316. The specification of the filter element may be a paper dry air filter φ225×φ115×410 mm.

[0106] Furthermore, the filter element fixing bracket 10 and the filter element 6 are both cylindrical structures, and a plurality of through holes are provided on the side wall of the filter element fixing bracket 10 .

[0107] The beneficial effect of adopting the above further technical solution is that the filter element fixing bracket is a cylindrical space, and annular through holes are distributed on the cylinder wall, which facilitates the drainage gas to flow evenly to the inside of the filter element and reduces the possibility of local damage to the filter element.

[0108] The specification of the filter element support frame (filter element fixing bracket 10) may be a φ114mm×4mm annular hole (through hole) distribution, and the material may be L316.

[0109] Furthermore, blind plates 11 are provided at both ends of the collector cylinder 9 , and a nitrile rubber sealing gasket 12 is provided between the filter element 6 and the blind plates 11 .

[0110] The beneficial effects of adopting the above further technical solution are: the blind plate is provided to facilitate the installation and maintenance of the filter element and the replacement of the filter element. The nitrile rubber sealing pad is used to improve the sealing performance of the collector.

[0111] Among them, a blind plate can be fixedly installed at one end of the collector cylinder 9, and a blind plate (flange) can be detachably installed at the other end by bolts, so as to facilitate the installation and maintenance of the filter element inside the collector cylinder 9. Of course, the blind plates at both ends of the collector cylinder 9 can also be detachably installed. Preferably, the blind plates at both ends of the collector cylinder 9 are welded and installed with the cylinder and the filter element support frame on one side, and the blind plate with the sealing end on the other side can be detachably installed.

[0112] The size of the sealing cover plate (blind plate 11) can be φ365×30mm, and the material can be L316. The specification of the sealing cover plate sealing ring (nitrile rubber sealing pad 12) can be O-type φ350×6mm, and the material can be nitrile rubber.

[0113] Furthermore, there is a gap between the filter element fixing bracket 10 and the collector cylinder 9 .

[0114] The beneficial effect of adopting the above further technical solution is that it is easy to collect dirt.

[0115] Furthermore, the collector 3 is provided with an observation window 13 and a drainage gas inlet 14, the distributor 2 is connected to the drainage gas inlet 14 through a pipeline, and the discharge hole 7 is located below the collector 3, and the diameter of the discharge hole 7 is 159 mm.

[0116] The beneficial effect of adopting the above further technical solution is that the noise is reduced by dispersing downwards through the discharge hole below the cylinder.

[0117] like Figure 5 As shown, the observation window 13 can be arranged on the side wall of the collector 3 , the observation window 13 is arranged in the middle of a blind plate, and drainage gas inlets 14 are arranged on both sides of the observation window 13 .

[0118] The blind plates at both ends of the collector cylinder 9 are welded and installed with the cylinder and the filter element support frame on one side, and are provided with a drainage gas inlet 14 (connected to the distributor) and an inspection hole (installed with a wire plug), and the blind plate on the other side is installed with a circular observation window for observing the dirt collection situation inside the filter element support frame; the observation window on the side wall of the collector is used to observe the working condition of the filter element.

[0119] The collector discharge port (discharge hole 7) may be φ140×10mm downward, and the material may be L316. The observation window 13 may be a flange sight glass DN40 and a rectangular sight glass 200×80mm, and the material may be 304 stainless steel to observe the sewage discharge condition in the filter element support frame. The drainage gas inlet 14 may be two 1 / 2NPT internal threads, and the material may be 304 stainless steel connected to the distributor to achieve three-in and two-out, multiple valve sewage discharge.

[0120] The noise reduction process is completed by the collector at the end of this device (ball valve sewage drainage collection device). Slowly open the sewage nozzle (sewage nozzle 4), and the high-pressure gas in the valve cavity passes through the drainage conversion bracket and enters the collector through the high-pressure hose. The collector filter element support frame (filter element fixing bracket) is cylindrical in structure, and there are annular holes distributed on the cylinder wall, which can effectively fix the air filter element (filter element) and play a role in stabilizing the sewage airflow, and prevent the excessive sewage gas volume from causing deformation and vibration of the filter element. The pressure of high-pressure natural gas is rapidly reduced from 8MPa (based on the real-time operating pressure) to below 0.5MPa, and is discharged into the air through the lower vent (discharge hole 7) of the collector outer cavity. The energy of the gas expansion process is rapidly reduced (the space is increased by more than 360 times). At the same time, the gas inside the filter element bracket (filter element fixing bracket) produces eddy and turbulent effects, absorbing part of the sound wave energy, so that the noise is further reduced.

[0121] The exhaust gas diffuses to the outer metal filter element (filter element) through the annular hole of the filter element bracket (filter element fixing bracket). The inside of the filter element is filled with multiple layers of filter paper. The fluffy and soft filter paper further absorbs the sound waves to reduce the harm and interference to the human body. The double-layer metal mesh used on the inner and outer walls of the filter element can effectively support the internal filter paper to maintain a good filtering shape. It also has the function of refraction and scattering of sound waves. The sound is changed from the same direction to the direction of mutual cancellation, which completely reduces the energy of the noise to a minimum.

[0122] After field tests, the average noise level before using the collector was 105db, which was very harsh. Operators needed to wear earplugs and earmuffs to avoid damaging the eardrum and causing occupational diseases. After using the collector, the noise level was controlled below 45db, which is equivalent to the decibel level of two people talking normally, and it has a very good noise reduction effect.

[0123] The noise reduction features of this device:

[0124] 1. High-pressure gas expands, the pressure drops rapidly, and the energy decreases.

[0125] 2. The gas produces eddy and turbulent effects, absorbing a large amount of energy.

[0126] 3. The multi-layer metal mesh of the filter element refracts the sound repeatedly to reduce noise.

[0127] 4. Multi-layer filter paper has significant energy absorption effect and reduces noise.

[0128] The collector mainly includes a cylinder (collector cylinder 9), a filter element support frame (filter element fixing bracket 10), an air filter element (filter element 6), a sealing cover plate, an observation hole (observation window 13), etc., and a threaded connection distributor is installed at the inlet end; the overall weight is about 120Kg. In order to facilitate on-site transportation, the collector is installed on a trolley as a whole. The exhaust gas mixed with dirt enters the collector filter element support frame (inner cavity), completes pressure release, flow stabilization, noise reduction and dirt reception, and is discharged into the atmosphere after being filtered by the filter element (outer cavity).

[0129] The filter element support frame is cylindrical in structure, with annular holes distributed on the wall of the cylinder, which can effectively fix the air filter element to prevent deformation and vibration of the filter element caused by excessive exhaust gas volume. The high-pressure airflow mixed with dirt first enters the filter element support frame, and the exhaust gas pressure drops instantly and diffuses to the outer metal filter element through the annular holes. During this period, some dirt is adsorbed on the support frame and the inner wall of the filter element. After further filtration by the filter element, the clean gas diffuses to the outer cavity of the collector and is released locally through the discharge port at the bottom of the cylinder.

[0130] During the sewage discharge process, the operator can check the sewage discharge situation through the primary and secondary observation holes, and adjust the sewage discharge screw opening appropriately according to the sewage discharge progress to determine whether the sewage discharge is completed. When there is a lot of dirt in the primary and secondary observation holes and the sewage discharge gas is not released smoothly, it is necessary to clean the dirt inside the support frame and replace the metal filter element.

[0131] Filter element technical parameters and selection:

[0132] 1. Select filter element: Paper dry air filter. Small size, light weight, easy to replace and maintain; theoretical height 410mm, outer diameter φ225mm, inner diameter φ115mm, weight 2.5Kg.

[0133] 2. Performance: The filter element has 3 layers of internal filter paper (folded layers), which can effectively remove water, oil mist, and solid particles, and 100% remove particles of 0.1μm and above.

[0134] 3. Technical parameters: The metal mesh is used for support in the middle to prevent the filter papers from sticking together. According to the technical parameters provided by the manufacturer, the gas flow rate is 0.08m / s (the standard for natural gas filter element is 0.06-0.08m / s), and the filter element flow rate is 300m3 / h.

[0135] According to the specifications and models of the valves and sewage nozzles on site, select and install the matching sewage nozzle drainage conversion bracket, quickly complete the installation of the device (ball valve sewage drainage collection device) and the valve sewage nozzle, and then connect the drainage conversion bracket and the collector through a high-pressure hose. The sewage gas first passes through the internal channel of the conversion bracket (drainage conversion bracket) and completes the drainage output according to the designed flow path. The high-pressure gas mixed with dirt enters the collector along the high-pressure hose, and the sewage gas and dirt gradually slow down before reaching the end; finally, the high-pressure gas enters the collector and the volume becomes larger and quickly dispersed, and the dirt is adsorbed on the metal inside the filter element and the surface of the paper filter element.

[0136] The main structure of the tooling includes a drainage nozzle conversion bracket (open and close type, threaded connection type) and an integrated trolley, which are connected by a high-pressure hose (see Figure 1 ).

[0137] 1. Drainage conversion bracket for sewage nozzle (drainage conversion bracket): The conversion bracket (drainage conversion bracket) is the front working part of this device. The conversion bracket is effectively locked into one with the sewage nozzle, and the drainage is realized after the sewage outlet is connected with the conversion bracket interface. The high-pressure gas and dirt in the valve cavity can pass through the sewage nozzle conversion bracket and discharge the dirt according to the designed channel, completing the sewage drainage, collection of dirt and gas discharge process.

[0138] 2. High-pressure hose: The high-pressure hose is the middle working part of the device. Both ends are threaded quick-release connectors. The upstream end is connected to the drainage conversion connector of the sewage nozzle, and the downstream end is connected to the sewage collection device. The starting and ending specifications are unified as M20*1.5 internal thread quick-release connectors with an inner hole of 8mm.

[0139] 3. Collector: The collector is the working part at the end of the device. The collector mainly includes six parts: a three-inlet and two-outlet distributor, a collector cylinder, a filter element fixing bracket, a filter element, an observation window and a sealing blind plate. The accessories include an inlet conversion joint (connected to the drainage gas inlet), a sealing gasket / ring, a discharge port, etc. Considering the overall weight and the convenience of transportation within the site, all the above parts and accessories are fixed on the integrated trolley. The filter element fixing bracket is a cylindrical space with annular through holes distributed on the cylinder wall to facilitate the drainage gas to flow evenly to the inside of the filter element and reduce the possibility of local damage to the filter element; the filter element and the blind plates on both sides use φ220*φ115*12mm nitrile rubber sealing gaskets. The inside of the filter element is the space before the valve cavity drainage and sewage discharge, and the space between the outside of the filter element and the cylinder is the space for dirt collection and gas filtration, which is discharged downward through the φ159mm discharge hole below the cylinder.

[0140] Suitable for ball valve drainage in oil and gas stations, the ball valve caliber range is DN50-DN1000, the drainage nozzle caliber range is NPT1 / 4-NPT1.5, and the oil and gas pressure range is 1.6-10MPa.

[0141] Eliminate the risk of dirt splashing, effectively protect the environment, work sites, equipment, prevent personnel from being injured, achieve effective noise reduction in the sewage discharge process, and operate safely and reliably. It is widely applicable to ball valves and can be used in most oil and gas stations.

[0142] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A ball valve drainage collection device, characterized in that: include: At least one drainage conversion bracket, a distributor, and a collector with a filter element for connecting to a sewage discharge nozzle, wherein the drainage conversion bracket is connected to the distributor through a pipeline, the distributor is connected to the collector through a pipeline, and the collector is provided with a discharge hole.

2. A ball valve drainage and collection device according to claim 1, characterized in that: The drainage conversion bracket is an open-and-close drainage conversion bracket or a threaded drainage conversion bracket.

3. A ball valve drainage and collection device according to claim 1, characterized in that: The collector is installed on an integrated trolley.

4. A ball valve drainage and collection device according to claim 1, characterized in that: Both ends of the pipeline are provided with threaded quick-release connectors.

5. A ball valve drainage and collection device according to claim 1, characterized in that: The distributor is a three-inlet and two-outlet distributor.

6. A ball valve drainage and collection device according to claim 1, characterized in that: The collector comprises: a collector cylinder, a filter element, and a filter element fixing bracket, wherein the filter element fixing bracket is installed in the collector cylinder, the filter element is installed in the filter element fixing bracket, and the distributor is connected to the collector cylinder through a pipeline.

7. A ball valve drainage collection device according to claim 6, characterized in that: The filter element fixing bracket and the filter element are both cylindrical structures, and a plurality of through holes are arranged on the side wall of the filter element fixing bracket.

8. A ball valve drainage and collection device according to claim 6, characterized in that: Blind plates are provided at both ends of the collector cylinder, and a nitrile rubber sealing pad is provided between the filter element and the blind plate.

9. A ball valve drainage and collection device according to claim 6, characterized in that: There is a gap between the filter element fixing bracket and the collector cylinder.

10. A ball valve sewage drainage collection device according to claim 1, characterized in that: The collector is provided with an observation window and a drainage gas inlet, the distributor is connected to the drainage gas inlet through a pipeline, the discharge hole is located below the collector, and the diameter of the discharge hole is 159 mm.

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