CN110341751A - A distributed centralized sewage unloading device - Google Patents

Abstract

The present invention relates to railway vacuum to unload dirty apparatus field, it is intended to provide a kind of distributed centralization and unloads dirty device, several dirty unit is unloaded including be mounted between train service line station track, dirty unit is each unloaded corresponding to the dirt box on every section train, unloading the soil pick-up hose in dirty unit can quickly connect with dirt box nozzle, and every three are unloaded dirty unit and connect a platform convex wheel vacuum pump；The cam vacuum pump is separately connected by the sewage pipe that dirt-discherging pipe manifold acquisition means unload dirty unit with three；The outlet of the cam vacuum pump is connected with total blown pipe.The present invention can be reduced the quantity that railway vacuum unloads dirty equipment, reduces occupied area, has saved equipment cost, energy consumption, reduce maintenance of equipment work amount, and realizes the concentration operational management of equipment to a certain extent, it is easy to operate, fast, it improves railway vacuum and unloads dirty working efficiency.

Description

A distributed centralized sewage unloading device

technical field

The invention relates to the field of railway vacuum sewage unloading equipment, more specifically, a distributed centralized sewage unloading device.

Background technique

At present, after all EMU trains and some air-conditioned express passenger trains arrive at the station, the ground sewage unloading equipment is used to unload the sewage tank of the train, and the sewage is transported to the ground sewage disposal device. Vacuum unloading technology has been widely used in bullet train depots, large passenger stations, and passenger car maintenance bases at home and abroad. The main feature of railway vacuum unloading is low vacuum, mixed flow of gas, liquid and solid, so the technical principle adopted is to use the force generated by the pressure difference between vacuum and atmosphere to evenly attract and transport the mixed flow. Domestic and foreign railway sewage unloading technologies mainly include mobile sewage unloading vehicles, centralized vacuum unloading systems, decentralized sewage unloading systems, etc.

The mobile unloading vehicle is only suitable for emergency operations or in maintenance depots with a long preparation time. The suction flow of the mobile unloading truck is small, and only one dirt tank can be unloaded at a time, so the work efficiency is low. Due to the limitation of man-made environment and other factors, and the open discharge into septic tanks, there are problems such as odor affecting the living environment and sanitation, and the utilization rate of my country's railway industry is gradually decreasing.

The centralized vacuum unloading system is mainly composed of vacuum pumps, vacuum tanks, vacuum pipes, sewage unloading units, sewage pumps, sewage pipes, deodorizing devices, etc., such as the "fixed vacuum unloading device" of patent number 200520126608.5. Its advantage is that it has a certain vacuum energy storage capacity; when sewage and air enter, the vacuum value gradually decreases, and when it reaches the set minimum vacuum value, it switches to another vacuum tank. The whole set of vacuum tank unit occupies a large area and is installed in the equipment room. The installation is complicated and prone to leakage; the circulating vacuum pump is spared and maintained regularly; the gas-liquid mixture needs to be discharged separately, and the gas discharge is equipped with a deodorization device, and the deodorization medium is replaced regularly ; The sewage is discharged to the septic tank through the sewage pump. Sewage discharge needs to overcome the negative pressure to start, which consumes a lot of energy and is easy to block; there are many valves connected between the tanks, and the control system is relatively complicated; the maintenance and repair work is relatively large.

The decentralized sewage unloading system is mainly composed of cam vacuum pumps, sewage unloading units, sewage pipelines, etc., such as "an independent decentralized sewage unloading system" in patent number 201620160399.4. It adopts direct suction and direct discharge mode, modular assembly of equipment, small footprint, easy installation of the unit, can be installed above ground, underground or in a box, less restricted by civil engineering conditions, the unit starts quickly, and the whole process is a process of vacuum formation , is also the process of gas-liquid mixture blowdown, which not only saves energy consumption, but also saves time; the equipment has no energy storage tank, few components and valves, simple structure, gas-liquid mixed discharge, convenient maintenance and repair, and low failure rate. However, each train car needs to correspond to a sewage discharge system, and the cost of construction is relatively high.

Contents of the invention

The purpose of the present invention is to further improve the existing vacuum unloading system technology and provide a distributed centralized unloading device to reduce the number of railway vacuum unloading equipment, reduce the floor space, and save equipment costs and energy. Consumption, reducing the workload of equipment maintenance. To a certain extent, the centralized operation management of the equipment is realized, the operation is convenient and fast, and the work efficiency of the railway vacuum sewage discharge is improved.

To achieve the above object, the present invention provides the following technical solutions:

A distributed centralized sewage unloading device, including several sewage unloading units installed between the tracks of the train maintenance line, each sewage unloading unit corresponds to the sewage tank on each train, and the sewage suction hose in the sewage unloading unit can be It is quickly connected to the nozzle of the dirt tank, and every three sewage discharge units are connected to a cam vacuum pump; the cam vacuum pump is respectively connected to the sewage discharge pipes of the three sewage discharge units through the sewage discharge pipe collection device; the outlet of the cam vacuum pump is connected to the main The drain pipe is connected.

As a further improvement of the present invention, the cam vacuum pump uses a pump with a matching capacity, which can form a vacuum degree required by the design value and ensure the sewage suction capacity of the three sewage unloading units.

As a further improvement of the present invention, the cam vacuum pump is fixed on the base.

As a further improvement of the present invention, both the sewage discharge unit and the cam vacuum pump are installed in the underground unit well, not higher than the ground, and do not affect the traffic on both sides of the railway.

As a further improvement of the present invention, the unit well is provided with drainage holes connected with underground drainage pipes to ensure smooth drainage in the unit well and avoid water accumulation in the unit well.

As a further improvement of the present invention, the decontamination unit includes a box body, which includes a decontamination hose, a quick connector, a hose coiling mechanism, a guide wheel mechanism and an automatic control device; the decontamination hose is extracted manually The tube is electrically coiled and retracted to the tube; automatic control is realized, the operation is reliable, and the operation is convenient.

As a further improvement of the present invention, the total sewage pipe is directly buried underground, crosses the railway after a protective casing is installed, and is laid at a certain slope to reduce sewage resistance and avoid pipeline pollution.

As a further improvement of the present invention, the total sewage pipe is equipped with an electric heat tracing heating device to prevent freezing, which is suitable for high-cold permafrost regions.

Compared with prior art, the beneficial effect of the present invention is:

The distributed centralized sewage unloading device of the present invention uses one cam vacuum pump to drive three sewage unloading units to realize the operation of one equipment and maintain the vacuum degree and sewage discharge function of the three sewage unloading units, thus reducing the total investment of railway platform equipment. The footprint of the overall equipment is reduced. The cam vacuum pump of the present invention can be automatically controlled and can operate efficiently and reliably, and the cam vacuum pump and the sewage unloading unit are buried in the underground unit well without occupying the ground area. The entire vacuum sewage discharge pipeline system is formed by connecting every three coiled sewage discharge units with a cam vacuum pump, and finally discharges the sewage through the main sewage discharge pipe by using the pressure difference.

Description of drawings

Fig. 1 is a structural representation of the present invention;

In the figure: 1. No. I sewage unloading unit; 2. Ball valve of No. I sewage unloading unit; 3. No. I unit sewage discharge pipe; 4. No. II sewage unloading unit; 5. No. II sewage discharge unit sewage discharge pipe; Collecting device; 7. The sewage pipe between the sewage pipe collecting device and the cam vacuum pump; 8. The sewage discharge ball valve of the cam vacuum pump; 9. The sewage discharge pipe of No. III sewage discharge unit; 10. No. III sewage discharge unit; 11. No. III sewage discharge unit Ball valve; 12, total sewage pipe; 13, cam vacuum pump; 14, drainage hole.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, the distributed centralized decontamination device of the present invention comprises cam vacuum pump 13, No. I decontamination unit 1, No. II decontamination unit 4, No. III decontamination unit 10; No. I decontamination unit 1, II No. 4 sewage discharge unit and No. III sewage discharge unit 10 are respectively connected to the sewage discharge pipe collection device 6 through their respective sewage discharge pipes, and the sewage discharge pipe collection device 6 passes through the sewage discharge pipe 7 and the cam vacuum pump 13 between the sewage discharge pipe collection device and the cam vacuum pump. Connection; No. I sewage unloading unit 1, No. II sewage unloading unit 4 and cam vacuum pump 13, and No. III sewage unloading unit are respectively installed in the unit well, which occupies a small area and does not affect the traffic on both sides of the railway track. A drain 14 is set in the unit well to avoid water accumulation in the unit well, and a cover plate is provided in the unit well to avoid rain and direct sunlight.

The sewage pipe includes pipe material, joint pipe fittings and valve parts connected to the pipe material. Heat fusion, capacitance or flange connection between pipes, joints, fittings and valve components, and various other connection methods can also be used. Specifically see as shown in Figure 1: No. I unit blowdown pipe 3 in No. I blowdown unit 1 leads to blowdown pipe collection device 6 after installing No. I blowdown unit ball valve 2; No. III unit blowdown in No. III blowdown unit 10 The pipe 9 is installed with the ball valve 11 of the No. III sewage discharge unit and leads to the sewage pipe collection device 6; and the No. II sewage discharge unit 4 is in the same unit well as the cam vacuum pump 13, so the sewage pipe 5 of the No. II unit is directly connected to the sewage pipe. The collecting device 6 is connected.

The cam vacuum pump 13 of the present invention is fixed on the base, and a pump with matching capacity is selected to form a vacuum degree required by the design value and ensure the sewage suction capacity of the three sewage unloading units. At the same time, an independent control system is installed, and the equipment can be started/stopped independently when unloading, which ensures and realizes high efficiency and stability of work. The sewage unloading unit and the sewage pipeline are completely sealed, no peculiar smell, no blockage, no air leakage, no oil leakage, no water leakage, no dirt leakage, etc., very clean. The outlet of the cam vacuum pump 13 is discharged to the main sewage pipe 12 buried in the ground through the cam vacuum pump blowdown ball valve 8. When the total sewage pipe 12 is buried, a protective casing is set to cross the railway, and it is laid with a certain slope to reduce the sewage resistance and keep unobstructed.

The main sewage pipe 12 of the present invention adopts high-quality PE pipe material, which has the characteristics of smooth inner wall, small resistance, large effective flow rate, strong corrosion resistance, few pipe joints, and convenient installation. If in the alpine region, heat tracing heating device is added, when the ambient temperature is too low, the main sewage pipe 12 can be heated to prevent the sewage pipeline from freezing and blocking.

In addition, No. I decontamination unit 1, No. II decontamination unit 4, and No. III decontamination unit 10 in the present invention all include a rotary sealing device, an electric control device and a hose coiling device; The coiling device is connected, the electric control device is connected with the hose coiling device, and the hose is equipped with a quick connector, which can be quickly connected with the train dirt interface; the specific form can be found in the patent No. 201420754240.6 "A Vacuum Sewage Unloading Device for Railway Stations vacuum unit".

Finally, it should also be noted that the above enumeration is only a specific embodiment of the present invention. Obviously, the present invention can also have many modifications, and some details in the embodiment should not constitute a limitation of the present invention. Those skilled in the art All deformations that a person of ordinary skill can derive or associate directly from the content disclosed in the present invention should be considered as the protection scope of the present invention.

Claims (8)

1. a kind of distributed centralization unloads dirty device, including be mounted between train service line station track it is several unload dirty unit, each unload Dirty unit corresponds to the dirt box on every section train, and unloading the soil pick-up hose in dirty unit can quickly connect with dirt box nozzle, It is characterized in that；Every three are unloaded dirty unit and connect a platform convex wheel vacuum pump (13)；The cam vacuum pump (13) passes through dirt-discherging pipe manifold The sewage pipe that acquisition means (6) unload dirty unit with three is separately connected；The outlet and total blown pipe of the cam vacuum pump (13) (12) it is connected.

2. distributed centralization according to claim 1 unloads dirty device, it is characterised in that；The cam vacuum pump (13) is selected To the pump of matching capacity, the vacuum degree of design value requirement can be formed, it is ensured that three are unloaded the soil pick-up ability of dirty unit.

3. distributed centralization according to claim 2 unloads dirty device, it is characterised in that；The cam vacuum pump (13) is fixed In on pedestal.

4. distributed centralization according to any one of claim 1 to 3 unloads dirty device, it is characterised in that；It is described to unload dirty list Member is all installed in the unit well of underground with cam vacuum pump (13).

5. distributed centralization according to claim 5 unloads dirty device, it is characterised in that；It is equipped in the unit well and underground The connected drainage hole (14) of drainage pipeline.

6. distributed centralization according to claim 5 unloads dirty device, it is characterised in that；It is described that unload dirty unit include cabinet, It include unloading dirty hose, quick coupling, hose twisting organization, type leading wheel framework and automatic control device in cabinet；It is described unload it is dirty soft Pipe uses manual withdrawal outlet pipe, and return pipe is withdrawn in electronic coiling.

7. distributed centralization according to claim 1 unloads dirty device, it is characterised in that；The total blown pipe (12) is in underground Direct-burried, railroad crossing after protecting pipe of setting up defences, and be in the laying of certain slope.

8. distributed centralization according to claim 7 unloads dirty device, it is characterised in that；The total blown pipe (12) is equipped with electricity Heat tracing heating device is with Anti-freezing.