Draining pump vacuumizing pipeline system combining vacuum pipeline and clear water pipeline

Abstract

The utility model discloses a vacuum pipeline and clear water pipeline combined drainage pump vacuumizing pipeline system, which belongs to the technical field of coal mine underground drainage and comprises a vacuum pipeline and a clear water pipeline which are formed by seamless steel pipes and connected through a three-way joint. An electric ball valve is arranged at the joint to achieve function switching of vacuum jet flow and clear water jet flow, and a pressure reducing valve is arranged at the water inlet end of the clear water pipeline and used for regulating and controlling the pressure of clear water; according to the system, through the integrated design, the problem of leakage caused by the fact that a single pipeline cannot bear positive pressure and negative pressure at the same time is solved, and the system has the advantages of being compact in structure, flexible in switching and stable in operation and meets the drainage requirement of the underground limited space.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine drainage technical field, more specifically, it is a kind of vacuum pipeline and clean water pipeline combined drainage pump vacuum pipeline system. BACKGROUND

[0002] The existing underground drainage system often uses single vacuum pumping mode: clean water jet relies on high-pressure positive pressure pipeline, and vacuum pump relies on negative pressure pipeline. Due to the limited space underground, if two sets of pipelines are independently laid, it is easy to lead to complex installation and increased cost; if a single pipeline is shared, the pipeline joint is easy to deform and leak under the alternating action of positive and negative pressure. Therefore, an integrated pipeline system is needed, which can not only switch between double modes, but also ensure structural stability. SUMMARY

[0003] To solve the above problems and overcome the shortcomings of the prior art, the utility model provides a vacuum pipeline and clean water pipeline combined drainage pump vacuum pipeline system, which is simple in structure, firm and can meet the vacuum pumping and clean water jet pumping requirements of vacuum pump.

[0004] To achieve the above purpose, the utility model provides a vacuum pipeline and clean water pipeline combined drainage pump vacuum pipeline system, which comprises: a vacuum pipeline connected by seamless steel pipes, and a threaded fastener at the pipeline joint;

[0005] A clean water pipeline connected to the vacuum pipeline through a tee joint, the tee joint is provided with an electric ball valve near one end of the clean water pipeline for switching between vacuum jet and clean water jet;

[0006] A pressure reducing valve provided at the water inlet end of the clean water pipeline for adjusting the clean water pressure;

[0007] An angle iron support supporting the vacuum pipeline, and a C-shaped pipe clamp matching the pipe diameter, the C-shaped pipe clamp is fixed to the support by bolts.

[0008] Further, the wall thickness and pipe diameter of the seamless steel pipe are configured according to the negative pressure value of the vacuum pump and the lightweight requirement, and the pipeline is single-laid.

[0009] Further, the angle iron support surface is provided with symmetrical bolt holes, and the C-shaped pipe clamp two end support feet are provided with connecting holes corresponding to the bolt holes, and the vacuum pipeline is fixed by bolts.

[0010] Further, the C-shaped pipe clamp is made of stainless steel or hot-dip galvanized steel material, and the inner diameter of the clasp ring matches the outer diameter of the vacuum pipeline.

[0011] Further, the pipe diameter of the electric ball valve is consistent with the pipe diameter of the clean water pipeline, and the pipe diameter of the tee joint matches the pipe diameters of the vacuum pipeline and the clean water pipeline.

[0012] Further, the high-pressure side of the pressure reducing valve is connected with the clean water inlet end, and the low-pressure side is connected with the pump house water inlet end, and the pressure regulating range covers the required positive pressure value of the clean water jet.

[0013] Further, the vacuum pipeline end is connected with a vacuum pump, and the vacuum pump discharges accumulated water through a drainage pipeline.

[0014] Further, a plurality of tee joints are arranged on the vacuum pipeline and used for connecting jet pipeline, and a gate valve is arranged on the jet pipeline.

[0015] The utility model discloses beneficial effect is:

[0016] The vacuum pipeline and clean water pipeline combined drainage pump vacuum pipeline system has the advantages of simple structure, firmness, and can meet the vacuum pump vacuum and clean water jet vacuum demand, the vacuum pipeline can meet the negative pressure value requirement when the vacuum pump is used, and the tee joint is connected with the clean water pipeline, and the electric ball valve installed on the clean water pipeline side is used for controlling the switching between the clean water jet and the vacuum jet. When the clean water jet is used, the electric ball valve is opened, clean water flows into and fills the vacuum pipeline system, and the pipeline is in a positive pressure environment; when the vacuum pump is used, the electric ball valve is closed, and the vacuum pump is used to pump the air in the pipeline, and the pipeline is in a negative pressure environment. The pressure reducing valve installed on the clean water pipeline inlet pipeline can regulate and control the clean water pressure value entering the vacuum pipeline system, and ensure that the vacuum pipeline system still maintains stable and reliable operation when the clean water jet is used. DRAWINGS

[0017] The utility model discloses a structure schematic diagram of the utility model is as shown in the figure, Figure 1

[0018] The utility model discloses a vacuum pipeline and clean water pipeline joint structure schematic diagram, Figure 2

[0019] In the drawings: 1, pressure reducing valve, 2, clean water pipeline, 3, electric ball valve, 4, tee joint, 5, vacuum pump, 6, drainage pipeline, 7, vacuum pipeline, 8, gate valve, 9, jet pipeline, 10, vacuum pipeline. DETAILED DESCRIPTION

[0020] In order to make the personnel of the prior art better understand the technical scheme of the utility model, the technical scheme of the utility model is clearly and completely described below in combination with the drawings of the utility model, based on the embodiment in the application, other similar embodiments obtained by the person skilled in the art without making creative labor should belong to the protection scope of the application. In addition, the direction words mentioned in the following embodiments, for example, "up", "down", "left", "right" and the like are only the direction of the drawings, therefore, the direction words used are used to explain but not limit the present application.​​

[0021] The utility model will be further described below in connection with the drawings and preferred embodiments.

[0022] As shown in Figure 1 and Figure 2 The vacuum pipeline system combined with the clean water pipeline provided by the utility model comprises a vacuum pipeline 7, a clean water pipeline 2, a vacuum pump 5 and a vacuum extraction pipeline 10, wherein the vacuum pipeline 7 is connected by seamless steel pipes, one end of the vacuum pipeline 7 is connected with the clean water pipeline 2 through a three-way joint 4, the other end is connected with the vacuum pump 5, the vacuum pump 5 discharges accumulated water through a drainage pipeline 6, and the third port of the three-way joint 4 is connected with the vacuum extraction pipeline 10.

[0023] The three-way joint 4 is provided with an electric ball valve 3 close to one end of the clean water pipeline 2, which is used for switching the vacuum jet and the clean water jet, the water inlet end of the clean water pipeline 2 is provided with a pressure reducing valve 1, which is used for adjusting the clean water pressure, and a plurality of three-way joints 4 are arranged on the vacuum extraction pipeline 10 and used for connecting jet pipelines 9, and the jet pipelines 9 are provided with gate valves 8.

[0024] The lower part of the vacuum pipeline 7 is provided with an angle iron support for supporting, and is fixed to the support through a C-shaped pipe clamp matched with the pipe diameter. The wall thickness and the pipe diameter of the vacuum pipeline 7 are configured according to the negative pressure value of the vacuum pump 5 and the lightweight requirement, and the pipeline is single-laid. The surface of the angle iron support is provided with symmetrical bolt holes, the two end supporting feet of the C-shaped pipe clamp are provided with connecting holes corresponding to the bolt holes, and the fixing of the vacuum pipeline 7 is realized through bolts. The C-shaped pipe clamp is made of stainless steel or hot-dip galvanized steel material, and the inner diameter of the clasp ring is matched with the outer diameter of the vacuum pipeline 7. The pipe diameter of the electric ball valve 3 is consistent with the pipe diameter of the clean water pipeline 2, and the pipe diameter of the three-way joint 4 is matched with the pipe diameters of the vacuum pipeline 7 and the clean water pipeline 2. The high-pressure side of the pressure reducing valve 1 is connected with the clean water inlet end, the low-pressure side is connected with the pump house water inlet end, and the pressure adjusting range covers the required positive pressure value of the clean water jet.

[0025] In the embodiment, the vacuum pipeline 7 is connected by seamless steel pipes with Q235B material, the pipe diameter is preferably DN50, and the wall thickness is 3.5 mm, so as to meet the-85kPa negative pressure requirement generated by the vacuum pump 5. The pipeline joint adopts 55° tapered thread fastening connection in accordance with the GB / T7306 standard, so as to ensure the sealing property.

[0026] The vacuum pipeline 7 is single-laid along the pump house side wall, and a group of angle iron supports with Q345 angle steel material and L50*50*5mm specification are arranged every 1.5m. The support is fixed to the wall pre-buried steel plate through welding, and two M12 bolt holes are opened on the upper surface of the support and symmetrically distributed on the two sides of the vacuum pipeline 7.

[0027] Stainless steel C-type pipe clamp with inner diameter of 52 mm and ring width of 30 mm is used to fix the pipeline. The support feet at both ends of the pipe clamp are provided with Φ13 mm connecting holes corresponding to the bolt holes of the support. The M12 bolts of grade 8.8 are used to lock the support, thereby ensuring the pipeline's resistance to vibration and deformation.

[0028] The clean water pipeline 2 is a DN50 galvanized steel pipe, which is connected with the vacuum pipeline 7 through a DN50×DN50×DN50 tee joint 4. The tee joint 4 is provided with an electric ball valve 3 type Q947F-16P near one end of the clean water pipeline 2. The valve body is connected with the clean water pipeline 2 through threads, and the valve position signal is connected to the pump house PLC control system to realize remote opening and closing control.

[0029] The closing response time of the electric ball valve 3 is less than or equal to 3 seconds, and the sealing level reaches ANSI Class VI, thereby ensuring no leakage under positive pressure conditions.

[0030] A pilot-operated pressure reducing valve 1 type Y42X-16C is installed at the water inlet end of the clean water pipeline 2. The valve body is connected through threads, the high-pressure side is connected to the downhole water supply network pressure range of 0.8~1.2 MPa, and the low-pressure side is connected to the water inlet end of the pump house.

[0031] The pressure regulating range of the pressure reducing valve 1 is 0.3~0.6 MPa. The target pressure value such as 0.5 MPa is set by rotating the adjusting screw, thereby ensuring the stability of the pipeline under positive pressure during the clean water jetting, and avoiding overpressure leading to joint deformation.

[0032] A water ring vacuum pump 5 type 2BE1-203 is connected to the end of the vacuum pipeline 7. The pumping rate is 4.5 m³ / min, and the ultimate vacuum degree reaches -95 kPa. The outlet of the vacuum pump 5 is connected to a DN65 drainage pipeline 6 through a flange. The pipeline slope is greater than or equal to 3‰, and the end is connected to the downhole drainage ditch to ensure that the pumped water is smoothly discharged.

[0033] A plurality of DN25 jetting pipelines 9 are arranged at intervals on the vacuum pipeline 10 and connected through tee joints 4. A manual gate valve 8 type Z41H-16C is installed on each jetting pipeline 9 for directional control of water flow during local drainage or flushing operation.

[0034] The double-mode working process is described in detail as follows:

[0035] Clean water jetting mode:

[0036] Turn off the power supply of the vacuum pump 5, and turn on the electric ball valve 3 through the PLC control;

[0037] Adjust the pressure reducing valve 1 to stabilize the clean water pressure to 0.5 MPa. The high-pressure clean water is injected into the vacuum pipeline 10 through the tee joint 4 to form a positive pressure jet, and the air in the pump is quickly discharged;

[0038] After the jet flow is completed, the gate valve 8 is closed to stop the local drainage and maintain the main pipeline in a positive pressure state.

[0039] Vacuum pump suction mode:

[0040] The electric ball valve 3 is closed, and the connection between the clean water pipeline 2 and the vacuum pipeline 10 is cut off.

[0041] The vacuum pump 5 is started, air in the pipeline is sucked, the system negative pressure reaches-85kPa, and the process lasts for 10-15min until the gas in the pump is exhausted.

[0042] After the vacuum pump 5 is stopped, the drainage pipeline 6 relies on gravity to drain the residual water, preventing freezing and blocking.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0044] Alternatively, the specific examples in the embodiments can refer to the examples described in the above embodiments, and the embodiments will not be described here.

[0045] The above-mentioned serial numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0046] In the above-described embodiments of the present application, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0047] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principle of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A vacuum conduit system for a drainage pump combined with a clean water conduit, characterized in that: The utility model relates to a kind of vacuum pipe and water pipe connection structure, including: Vacuum pipeline (7) connected by seamless steel pipe, pipeline joint is fastened by thread; Fresh water pipeline (2) is connected with the vacuum pipeline (7) by three-way joint (4), the three-way joint (4) is equipped with electric ball valve (3) near fresh water pipeline (2) one end, for switching vacuum jet and fresh water jet; Pressure reducing valve (1) is equipped in fresh water pipeline (2) water inlet end, for adjusting fresh water pressure; Angle iron support supporting the vacuum pipeline (7), and C type pipe clamp matching pipe diameter, the C type pipe clamp is fixed on support by bolt.

2. The vacuum conduit system of claim 1, wherein: The wall thickness and pipe diameter of the seamless steel pipe are configured according to the negative pressure value of vacuum pump (5) and lightweight demand, and the pipeline is single-lane laid.

3. The vacuum conduit system of claim 2, wherein: The surface of the angle iron support is provided with symmetrical bolt holes, and the both ends of the C type pipe clamp are provided with connecting holes corresponding to the bolt holes, so as to realize the fixation of the vacuum pipeline (7) by bolts.

4. The vacuum conduit system of claim 3, wherein: The C type pipe clamp is made of stainless steel or hot-dip galvanized steel material, and the inner diameter of the clasp ring matches the outer diameter of the vacuum pipeline (7).

5. The vacuum conduit system of claim 4, wherein: The pipe diameter of the electric ball valve (3) is consistent with the pipe diameter of fresh water pipeline (2), and the pipe diameter of the three-way joint (4) matches the pipe diameter of the vacuum pipeline (7) and fresh water pipeline (2).

6. The vacuum conduit system of claim 5, wherein: The high-pressure side of the pressure reducing valve (1) is connected with fresh water inlet end, and the low-pressure side is connected with pump house water inlet end, and the pressure regulating range covers the required positive pressure value of fresh water jet.

7. The vacuum conduit system of claim 6, wherein: The vacuum pump (5) is connected at the end of the vacuum pipeline (7), and the vacuum pump (5) discharges accumulated water through the drain pipeline (6).

8. The vacuum conduit system of claim 7, wherein: A plurality of three-way joints (4) are arranged on the vacuum pipeline (10) for connecting jet pipeline (9), and the jet pipeline (9) is provided with gate valve (8).

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