Blow-down valve group

Abstract

The utility model discloses a blow-down valve bank which comprises a confluence plate, a plurality of first electromagnetic valves and a plurality of second electromagnetic valves are arranged on the confluence plate, each first electromagnetic valve comprises a first valve body, a first valve cavity is formed in each first valve body, and a first air inlet, a first air outlet and a first exhaust port are formed in each first valve body; the first valve body is provided with a first pilot assembly for controlling the switching of gas circuits of the first electromagnetic valve; the second electromagnetic valve comprises a second valve body, a second valve cavity is formed in the second valve body, a second air inlet and a second air outlet are formed in the second valve body, and a second pilot assembly for controlling air path switching of the second electromagnetic valve is arranged on the second valve body; a vacuum port and a positive pressure port are formed in the confluence plate, a negative pressure gas channel and a positive pressure gas channel are formed in the confluence plate, the first gas inlet is communicated with the positive pressure gas channel, the second gas inlet is communicated with the positive pressure gas channel or the negative pressure gas channel, and sewage is pumped into the transition tank and discharged to a designated position through the synergistic effect of negative pressure suction and positive pressure sewage discharge. And pollution is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a valve group technical field, especially design a kind of sewage valve group. BACKGROUND

[0002] High-speed train discharges excrement generated by passengers directly on track during running, which is not only not environmental protection, but also causes significant pollution to railway track and its surrounding environment, and the emitted stench also affects the quality of life of surrounding residents. In addition, the accumulation of these excrement on the track may cause the track surface to become slippery, thereby affecting the running stability and safety of the train, and in the long run, may also cause problems such as track corrosion and damage, further threatening the normal operation of the train and the safety of passengers, and therefore, it is necessary to improve. SUMMARY

[0003] The utility model aims at the defects and deficiencies of prior art, provide a kind of sewage valve group, simple and reasonable structure, easy operation, sewage is pumped into transition tank from closet by the synergistic effect of negative pressure suction and positive pressure sewage, and finally is discharged to specified position, this processing mode is not only environmental protection, but also can reduce pollution to track and environment, while improve the running safety of train.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] The utility model discloses a kind of sewage valve groups, including busbar, the busbar is integrally provided with a plurality of first electromagnetic valve and a plurality of second electromagnetic valve;The first electromagnetic valve is two-position three-way electromagnetic valve, the first electromagnetic valve includes first valve body, first valve cavity is equipped in the first valve body, first inlet, first outlet and first exhaust port that are connected with first valve cavity are respectively provided on the first valve body, the first outlet is connected with full open sewage valve, the first exhaust port is connected with atmosphere, first pilot assembly for controlling the first electromagnetic valve gas path switching is provided on the first valve body;The second electromagnetic valve is two-position two-way electromagnetic valve, the second electromagnetic valve includes second valve body, second valve cavity is equipped in the second valve body, second inlet and second outlet that are connected with second valve cavity are respectively provided on the second valve body, the second outlet is connected with transition tank or connected with atmosphere, second pilot assembly for controlling the second electromagnetic valve gas path switching is provided on the second valve body;Vacuum port and positive pressure port are respectively provided on the busbar, negative pressure gas passage corresponding with vacuum port and being communicated and positive pressure gas passage corresponding with positive pressure port and being communicated are formed in the busbar, the first inlet is connected with positive pressure gas passage, the second inlet is connected with positive pressure gas passage or negative pressure gas passage.

[0006] Further, the first electromagnetic valve is provided with two, which are sewage electromagnetic valve and sewage discharge electromagnetic valve respectively.

[0007] Further, the second electromagnetic valve is provided with four, which are exhaust electromagnetic valve, pressurizing electromagnetic valve, intake electromagnetic valve and vacuumizing electromagnetic valve respectively, the second intake port of the exhaust electromagnetic valve and the pressurizing electromagnetic valve is communicated with the positive pressure gas channel, the second intake port of the intake electromagnetic valve and the vacuumizing electromagnetic valve is communicated with the negative pressure gas channel, the second outlet port of the exhaust electromagnetic valve and the intake electromagnetic valve is communicated with the atmosphere, the second outlet port of the pressurizing electromagnetic valve is connected with the pressurizing port of the transition tank, and the second outlet port of the vacuumizing electromagnetic valve is connected with the vacuumizing port of the transition tank.

[0008] Further, the busbar is connected with a pressure gauge for detecting pressure.

[0009] Further, the first pilot assembly comprises a first sleeve, a first static core, a first dynamic core and a first coil, the first coil is fixedly wound outside the first sleeve, the first static core is fixedly arranged in the first sleeve, the first dynamic core is movably arranged in the first sleeve and cooperates with the first static core, the first dynamic core is arranged above the first static core, a first sealing head for sealing is arranged on the first dynamic core, the first dynamic core can move between a first station and a second station, in a power-off state, the first dynamic core is located at the first station, the first intake port is communicated with the first outlet port, in a power-on state, the first dynamic core is located at the second station, the first outlet port is communicated with the first exhaust port.

[0010] Further, the first pilot assembly further comprises a manual lever, the lower end of the manual lever extends into the first sleeve and abuts against the first dynamic core, the upper end of the manual lever extends out of the first sleeve, and a first spring for resetting is arranged between the manual lever and the first sleeve.

[0011] Further, the second pilot assembly comprises a second sleeve, a second static core, a second dynamic core and a second coil, the second coil is fixedly wound outside the second sleeve, the second static core is fixedly arranged in the second sleeve, the second dynamic core is movably arranged in the second sleeve and cooperates with the second static core, the second dynamic core is arranged below the second static core, a second sealing head for sealing and a second spring for resetting of the second dynamic core are arranged on the second dynamic core, the second dynamic core can move between a third station and a fourth station, in a power-off state, the second dynamic core is located at the third station, the second intake port is not communicated with the second outlet port, in a power-on state, the second dynamic core is located at the fourth station, the second intake port is communicated with the second outlet port.

[0012] Further, a pressure port is further arranged on the busbar, and the pressure port is connected with a pressure tank.

[0013] Further, the first electromagnetic valves and the second electromagnetic valves are arranged in parallel on the busbar.

[0014] Further, the vacuum port is connected with a negative pressure port of the positive and negative pressure pump, and the positive pressure port is connected with a positive pressure port of the positive and negative pressure pump.

[0015] The sewage valve group has the advantages that sewage is sucked from the toilet into the transition tank through the synergistic effect of negative pressure suction and positive pressure sewage discharge, and is finally discharged to a designated position, the treatment mode is not only environmentally friendly, but also can reduce pollution to the track and the environment, and the running safety of the train is improved.

[0016] The working principle of the utility model is as follows, positive pressure: the system monitors the pressure signal preferentially, if the system pressure is lower than the set value, the system will start the vacuum suction electromagnetic valve, the positive and negative pressure pump pressurizes the pressure tank, and stops the pump when the pressure in the pressure tank reaches the set value;

[0017] Vacuum suction: the negative pressure value in the transition tank is detected, if the negative pressure value in the transition tank does not reach the set value, the positive and negative pressure pump is started, the exhaust electromagnetic valve and the air inlet electromagnetic valve are started, the transition tank is vacuumized, and the transition tank is closed when the negative pressure value reaches the set value, and waits for flushing;

[0018] Flushing: the flushing button is pressed, the sewage suction electromagnetic valve is started (the sewage discharge valve is fully opened), sewage is sucked into the transition tank; the sewage suction electromagnetic valve is closed, the pressure electromagnetic valve is started, the transition tank is pressurized, and the pressure is 0.1MPa, the sewage discharge electromagnetic valve is started (the sewage discharge valve is fully opened), and the sewage discharge electromagnetic valve and the pressure electromagnetic valve are closed after a delay, and sewage is discharged to a designated position. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure schematic view of the utility model;

[0020] Figure 2 It is the sectional structure schematic view of the first electromagnetic valve;

[0021] Figure 3 It is the sectional structure schematic view of the second electromagnetic valve; Figure 2 It is the structure schematic view of A in the second electromagnetic valve;

[0022] Figure 4 It is the sectional structure schematic view of the second electromagnetic valve;

[0023] Figure 5 It is the structure schematic view of B in the second electromagnetic valve; Figure 4

[0024] Figures 1-5 ​The utility model discloses a kind of exhaust valves, including manifold plate 1, manifold plate 1 is integrally provided with a plurality of first electromagnetic valve 2 and a plurality of second electromagnetic valve 3;Preferably, in the embodiment, a plurality of first electromagnetic valve 2 and a plurality of second electromagnetic valve 3 are arranged on the manifold plate 1, and the structure is more compact, save space. DETAILED DESCRIPTION

[0025] The utility model will be further described below with reference to the drawings.

[0026] As Figures 1-5 The utility model discloses a kind of exhaust valves, including manifold plate 1, manifold plate 1 is integrally provided with a plurality of first electromagnetic valve 2 and a plurality of second electromagnetic valve 3;Preferably, in the embodiment, a plurality of first electromagnetic valve 2 and a plurality of second electromagnetic valve 3 are arranged on the manifold plate 1, and the structure is more compact, save space.

[0027] Referring to Figures 2-3 , the first electromagnetic valve 2 is direct-acting normally open two-position three-way electromagnetic valve, the second electromagnetic valve 3 is direct-acting two-position two-way electromagnetic valve, the first electromagnetic valve 2 includes first valve body 21, first valve cavity is equipped in the first valve body 21, the first valve body 21 is provided with first air inlet 22, first air outlet 23 and first exhaust port respectively and is connected with first valve cavity, the first air outlet 23 is connected with full open exhaust valve, the first exhaust port is connected with atmosphere, the first valve body 21 is provided with the first pilot assembly 24 for controlling the first electromagnetic valve 2 gas path switching;

[0028] Referring to Figures 4-5 , the second electromagnetic valve 3 is two-position two-way electromagnetic valve, the second electromagnetic valve 3 includes second valve body 31, second valve cavity is equipped in the second valve body 31, the second valve body 31 is provided with second air inlet 32 and second air outlet 33 respectively and is connected with second valve cavity, the second valve body 31 is provided with the second pilot assembly 34 for controlling the second electromagnetic valve 3 gas path switching;

[0029] Referring to Figure 1The busbar 1 is respectively provided with a vacuum port 11 and a positive pressure port. Preferably, in the embodiment, the vacuum port 11 is connected to the negative pressure port of the positive and negative pressure pump, and the positive pressure port is connected to the positive pressure port of the positive and negative pressure pump. The busbar 1 is formed with a negative pressure gas channel 111 corresponding to and communicating with the vacuum port 11 and a positive pressure gas channel 2421 corresponding to and communicating with the positive pressure port.

[0030] Preferably, in the embodiment, referring to Figure 1 The first electromagnetic valve 2 is provided with two, from left to right, respectively, the sewage electromagnetic valve and the sewage electromagnetic valve, the first air inlet 22 of the sewage electromagnetic valve is connected to the positive pressure gas source through the positive pressure gas channel 2421, the first air outlet 23 of the sewage electromagnetic valve is connected to the full open sewage valve, and the first air outlet of the sewage electromagnetic valve is connected to the atmosphere; the first air inlet 22 of the sewage electromagnetic valve is connected to the positive pressure gas source through the positive pressure gas channel 2421, the first air outlet 23 of the sewage electromagnetic valve is connected to the full open sewage valve, and the first air outlet of the sewage electromagnetic valve is connected to the atmosphere;

[0031] Preferably, in the embodiment, the second electromagnetic valve 3 is provided with four, from left to right, respectively, the exhaust electromagnetic valve, the pressure electromagnetic valve, the inlet electromagnetic valve and the vacuum electromagnetic valve, the second air inlet 32 of the exhaust electromagnetic valve and the pressure electromagnetic valve is connected to the positive pressure gas channel 2421 and connected to the positive pressure gas source, the second air inlet 32 of the inlet electromagnetic valve and the vacuum electromagnetic valve is connected to the negative pressure gas channel 111 and connected to the negative pressure gas source, the second air outlet 33 of the exhaust electromagnetic valve and the inlet electromagnetic valve is connected to the atmosphere, the second air outlet 33 of the pressure electromagnetic valve is connected to the transition tank pressure port, and the second air outlet 33 of the vacuum electromagnetic valve is connected to the transition tank vacuum port 11.

[0032] Preferably, in the embodiment, referring to Figure 1 The positive pressure port is provided with two, respectively, the first positive pressure port 12 and the second positive pressure port 13, the first positive pressure port 12 and the second positive pressure port 13 are located on both sides of the busbar 1, the busbar 1 is provided with a first positive pressure gas channel 121 connected to the first positive pressure port 12 and a second positive pressure gas channel 131 connected to the second positive pressure port 13, the first air inlet 22 of the sewage electromagnetic valve and the sewage electromagnetic valve is connected to the first positive pressure gas channel 121, and the second air inlet 32 of the inlet electromagnetic valve and the vacuum electromagnetic valve is connected to the second positive pressure gas channel 131.

[0033] Preferably, in the embodiment, referring to Figure 1 The busbar 1 is connected with a pressure gauge 4 for detecting pressure, specifically, the pressure gauge 4 is an embedded pressure gauge 4, and the pressure signal is monitored through the embedded pressure gauge 4.

[0034] Preferably, in the embodiment, referring to Figure 2The first pilot assembly 24 comprises a first sleeve 241, a first static iron core 242, a first dynamic iron core 243 and a first coil 244. The first coil 244 is fixedly wound outside the first sleeve 241. The first static iron core 242 is fixedly arranged in the first sleeve 241. The first dynamic iron core 243 is movably arranged in the first sleeve 241 and cooperates with the first static iron core 242. The first dynamic iron core 243 is arranged above the first static iron core 242. The first dynamic iron core 243 is provided with a first sealing head 2431 for sealing. The first dynamic iron core 243 is movable between a first station and a second station. In a power-off state, the first dynamic iron core 243 is located at the first station. The first inlet 22 is in communication with the first outlet 23. In a power-on state, the first dynamic iron core 243 is located at the second station. The first outlet 23 is in communication with the first exhaust port.

[0035] The first static iron core 242 is provided with a gas passage 2421. The first inlet 22 is in communication with the first outlet 23 through the gas passage 2421. The upper end of the gas passage 2421 is provided with a first valve port 2422. The first sealing head 2431 is in sealing cooperation with the first valve port 2422. Specifically, in the power-on state, the first dynamic iron core 243 moves downward under the action of a magnetic field and is attracted to the first static iron core 242. The first sealing head 2431 is in sealing cooperation with the first valve port 2422. In the power-off state, the gas pressure pushes the first dynamic iron core 243 upward. A gap is formed between the first sealing head 2431 and the first valve port 2422. The first inlet 22 is in communication with the first outlet 23.

[0036] Preferably, in the embodiment, the first pilot assembly 24 further comprises a manual rod 245. The lower end of the manual rod 245 extends into the first sleeve 241 and is in abutting cooperation with the first dynamic iron core 243. The upper end of the manual rod 245 extends out of the first sleeve 241, facilitating direct manual control by an operator. A first spring 2451 for resetting is arranged between the manual rod 245 and the first sleeve 241. The first spring 2451 provides necessary elastic support, ensuring that the manual rod 245 can return to the initial position.

[0037] Preferably, in the embodiment, referring to Figure 4The second pilot assembly 34 comprises a second sleeve 341, a second static iron core 342, a second dynamic iron core 343 and a second coil 344, the second coil 344 is fixedly wound outside the second sleeve 341, the second static iron core 342 is fixedly arranged in the second sleeve 341, the second dynamic iron core 343 is movably arranged in the second sleeve 341 and cooperates with the second static iron core 342, the second dynamic iron core 343 is arranged below the second static iron core 342, the second dynamic iron core 343 is provided with a second sealing head 3431 for sealing and a second spring 3432 for resetting the second dynamic iron core 343, the second dynamic iron core 343 can move between the third station and the fourth station, in the power-off state, the second dynamic iron core 343 is located at the third station, the second air inlet 32 is not communicated with the second air outlet 33, and in the power-on state, the second dynamic iron core 343 is located at the fourth station, and the second air inlet 32 is communicated with the second air outlet 33.

[0038] The second valve body 31 is provided with a second valve port 311 for communicating the second air inlet 32 and the second air outlet 33, the second sealing head 3431 cooperates with the second valve port 311, specifically, in the power-on state, the second dynamic iron core 343 moves upward and is attracted to the second static iron core 342 under the action of a magnetic field, a gap is formed between the second sealing head 3431 and the second valve port 311, the second air inlet 32 is communicated with the second air outlet 33, in the power-off state, the second dynamic iron core 343 is reset under the elastic force of the second spring 3432, the second sealing head 3431 is in sealing cooperation with the second valve port 311, and the second air inlet 32 is not communicated with the second air outlet 33.

[0039] Preferably, in the embodiment, the busbar 1 is further provided with a pressure port connected with a pressure tank, one of main functions of the pressure tank is to store a certain amount of compressed air and provide stable positive pressure when the system needs, the pressure tank can play a buffering role to balance the pressure fluctuation in the system, when the positive and negative pressure pumps work, the pressure tank can absorb part of the pressure fluctuation, so that the pressure in the system is more stable, and damage to equipment caused by instantaneous overhigh or overlow pressure is avoided; when the system pressure is lower than the set value, the pressure tank can quickly supplement the pressure to maintain the normal operation of the system.

[0040] The sewage valve group is suitable for a sewage discharge control system of a high-speed train.

[0041] The working principle of the utility model is as follows, positive pressure: the system monitors the pressure signal preferentially, if the system pressure is lower than the set value, the system will start the vacuumizing electromagnetic valve, the positive and negative pressure pumps pressurize the pressure tank, and the pump is stopped when the pressure in the pressure tank reaches the set value.

[0042] Vacuumizing: detecting the negative pressure value in the transition tank, if the negative pressure value in the transition tank does not reach the set value, opening the positive and negative pressure pump, the exhaust solenoid valve and the intake solenoid valve, vacuumizing the transition tank, when the negative pressure value in the transition tank reaches the set value, closing, waiting for flushing;

[0043] Flushing: pressing the flushing button, opening the sewage suction solenoid valve (opening the sewage valve), pumping the sewage to the transition tank; closing the sewage suction solenoid valve, opening the pressurizing solenoid valve, pressurizing the transition tank to 0.1MPa, opening the sewage valve (opening the sewage valve), delaying closing the sewage valve and the pressurizing solenoid valve, and pumping the sewage to the designated position.

[0044] Through the synergistic effect of negative pressure suction and positive pressure sewage discharge, the sewage is pumped from the toilet into the transition tank and finally discharged to the designated position, which not only is environmentally friendly, but also reduces the pollution to the track and the environment, and improves the running safety of the train.

[0045] The above is only the preferred embodiment of the present application, so equivalent changes or modifications made according to the structure, features and principles described in the patent application range of the present application are included in the patent application range of the present application.

Claims

1. A blowdown valve train characterized by: The application relates to a current collecting plate (1) which is integrally provided with a plurality of first electromagnetic valves (2) and a plurality of second electromagnetic valves (3). The first electromagnetic valve (2) is a two-position three-way electromagnetic valve, the first electromagnetic valve (2) comprises a first valve body (21), a first valve cavity is arranged in the first valve body (21), a first air inlet (22), a first air outlet (23) and a first exhaust port are arranged on the first valve body (21) and are in communication with the first valve cavity, the first air outlet (23) is connected with a full-opening blowdown valve, the first exhaust port is in communication with the atmosphere, and a first pilot assembly (24) for controlling the air path switching of the first electromagnetic valve (2) is arranged on the first valve body (21). The second electromagnetic valve (3) is a two-position two-way electromagnetic valve, the second electromagnetic valve (3) comprises a second valve body (31), a second valve cavity is arranged in the second valve body (31), a second air inlet (32) and a second air outlet (33) are arranged on the second valve body (31) and are in communication with the second valve cavity, the second air outlet (33) is connected with a transition tank or is in communication with the atmosphere, and a second pilot assembly (34) for controlling the air path switching of the second electromagnetic valve (3) is arranged on the second valve body (31). A vacuum port (11) and a positive pressure port are arranged on the current collecting plate (1), a negative pressure gas channel (111) corresponding to the vacuum port (11) and in communication with the vacuum port (11) and a positive pressure gas channel (2421) corresponding to the positive pressure port and in communication with the positive pressure port are formed in the current collecting plate (1), the first air inlet (22) is in communication with the positive pressure gas channel (2421), and the second air inlet (32) is in communication with the positive pressure gas channel (2421) or the negative pressure gas channel (111).

2. A blowdown valve set according to claim 1, wherein: The first electromagnetic valve (2) is provided with two suction electromagnetic valves and blowdown electromagnetic valves.

3. A blowdown valve assembly according to claim 1 wherein: The second electromagnetic valve (3) is provided with four exhaust electromagnetic valves, pressurizing electromagnetic valves, air inlet electromagnetic valves and vacuumizing electromagnetic valves, the second air inlets (32) of the exhaust electromagnetic valves and the pressurizing electromagnetic valves are in communication with the positive pressure gas channel (2421), the second air inlets (32) of the air inlet electromagnetic valves and the vacuumizing electromagnetic valves are in communication with the negative pressure gas channel (111), the second air outlets (33) of the exhaust electromagnetic valves and the air inlet electromagnetic valves are in communication with the atmosphere, the second air outlet (33) of the pressurizing electromagnetic valve is connected with a transition tank pressurizing port, and the second air outlet (33) of the vacuumizing electromagnetic valve is connected with a transition tank vacuumizing port (11).

4. A blowdown valve assembly according to claim 1 wherein: A pressure gauge (4) for detecting pressure is connected with the current collecting plate (1).

5. A blowdown valve assembly according to claim 1 wherein: The first pilot assembly (24) comprises a first sleeve (241), a first static iron core (242), a first dynamic iron core (243) and a first coil (244), the first coil (244) is fixedly wound outside the first sleeve (241), the first static iron core (242) is fixedly arranged in the first sleeve (241), the first dynamic iron core (243) is movably arranged in the first sleeve (241) and cooperates with the first static iron core (242), the first dynamic iron core (243) is arranged above the first static iron core (242), the first dynamic iron core (243) is provided with a first sealing head (2431) for sealing, the first dynamic iron core (243) can move between a first station and a second station, in a power-off state, the first dynamic iron core (243) is located at the first station, the first air inlet (22) is in communication with the first air outlet (23), in a power-on state, the first dynamic iron core (243) is located at the second station, the first air outlet (23) is in communication with the first air outlet.

6. A waste valve set according to claim 5, wherein: The first pilot assembly (24) further comprises a manual rod (245), the lower end of the manual rod (245) extends into the first sleeve (241) and abuts against the first dynamic iron core (243), the upper end of the manual rod (245) extends out of the first sleeve (241), a first spring (2451) for resetting is arranged between the manual rod (245) and the first sleeve (241).

7. A waste valve set according to claim 1, wherein: The second pilot assembly (34) comprises a second sleeve (341), a second static iron core (342), a second dynamic iron core (343) and a second coil (344), the second coil (344) is fixedly wound outside the second sleeve (341), the second static iron core (342) is fixedly arranged in the second sleeve (341), the second dynamic iron core (343) is movably arranged in the second sleeve (341) and cooperates with the second static iron core (342), the second dynamic iron core (343) is arranged below the second static iron core (342), the second dynamic iron core (343) is provided with a second sealing head (3431) for sealing and a second spring (3432) for resetting of the second dynamic iron core (343), the second dynamic iron core (343) can move between a third station and a fourth station, in a power-off state, the second dynamic iron core (343) is located at the third station, the second air inlet (32) is not in communication with the second air outlet (33), in a power-on state, the second dynamic iron core (343) is located at the fourth station, the second air inlet (32) is in communication with the second air outlet (33).

8. A waste valve set according to claim 1, wherein: The busbar (1) is further provided with a pressure port connected with a pressure tank.

9. A waste valve set according to claim 1, wherein: The first electromagnetic valves (2) and the second electromagnetic valves (3) are arranged side by side on the busbar (1).

10. A waste valve set according to claim 1, wherein: The vacuum port (11) is connected with a pressure pump negative pressure port of a positive and negative pressure pump, and the positive pressure port is connected with a pressure pump positive pressure port of the positive and negative pressure pump. The vacuum port (11) is connected with a pressure pump negative pressure port of a positive and negative pressure pump, and the positive pressure port is connected with a pressure pump positive pressure port of the positive and negative pressure pump.

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