Skid-mounted vacuum sewage pump station

Abstract

The invention discloses a skid-mounted vacuum sewage pump station which comprises an equipment support, a tank support, a vacuum tank, a dual-redundancy pump set system, an intelligent control system and an auxiliary unit. A cam rotor pump set A, a claw type vacuum pump set A, a cam rotor pump set B, a claw type vacuum pump set B, an intelligent electric control box, a waste gas treatment box, a pump gas-water separator A and a pump gas-water separator B are fixedly installed above the equipment support, and the tank support is connected with the equipment support through bolts. According to the invention, through the integral skid-mounted module formed by the equipment bracket and the tank body bracket, factory prefabricated production and on-site rapid deployment are realized, and the installation cost and time are greatly reduced; a dual-redundancy pump set cam rotor pump A / B and a claw type vacuum pump A / B support'one-use and one-standby 'fault switching and'double-pump parallel connection' large-flow mode, and by combining the-85kPa high vacuum degree and 8.5 m self-suction capacity of the claw type vacuum pump set, the full-scene requirements from daily pollution discharge to peak load are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vacuum sewage pump stations, in particular to a pry-mounted vacuum sewage pump station. BACKGROUND

[0002] In urban drainage systems, sewage pump stations play a crucial role, as they are responsible for lifting and transporting sewage to sewage treatment plants or other designated locations. Traditional gravity flow drainage methods have limitations in flat or high-elevation areas, while vacuum sewage pump stations, as a new type of sewage technology, can effectively solve these problems and gradually gain application in the drainage field. The working principle of vacuum sewage pump stations is based on air pressure difference, using a vacuum pump to generate negative pressure in the system, so that sewage is sucked into the vacuum tank of the pump station through the vacuum pipeline under the action of air pressure. When the sewage in the vacuum tank reaches a certain liquid level, the sewage pump starts to discharge the sewage to the municipal sewage pipe network or sewage treatment plant. This sewage discharge method is not limited by terrain, can realize long-distance and high-fall sewage transportation, and has the advantages of water saving, environmental protection, flexible pipeline layout, etc.

[0003] In the prior art, the vacuum sewage pump station mainly has the following defects: first, the energy consumption is too high, which is due to the fact that in order to ensure the reliability of sewage transportation, the upper limit of the vacuum degree of the vacuum tank is generally set higher than the actual necessary value, resulting in significant increase in energy consumption of the vacuum pump and the sewage pump, causing energy waste. Second, there is a leakage monitoring blind area. For air infiltration with a leakage amount less than the suction capacity of the vacuum pump (“small leakage”), the existing monitoring means cannot effectively identify and alarm, which may cause the system to run with a disease for a long time, not only reducing the sewage efficiency, but also posing a risk of environmental pollution. Third, the equipment structure is complex (including vacuum pump, sewage pump, vacuum tank, valve and control system, etc.), which is highly professional and prone to wear and corrosion, making maintenance difficult, long repair cycle, high technical level requirement for personnel, affecting the continuous and stable operation of the system. Finally, the high initial investment cost (including purchase of special equipment, civil engineering and installation of control system) becomes an important obstacle to the popularization and application of this technology in areas with limited funds.

[0004] In view of the problems in the related art, no effective solution has been proposed so far. SUMMARY

[0005] In view of the problems in the related art, the pry-mounted vacuum sewage pump station is proposed to overcome the above technical problems existing in the prior art.

[0006] To this end, the specific technical solutions adopted by the present application are as follows: The pry-mounted vacuum sewage pump station comprises a device support, a tank support, a vacuum tank, a double-redundancy pump group system, an intelligent control system and an auxiliary unit, a cam rotor pump group A, a claw type vacuum pump group A, a cam rotor pump group B, a claw type vacuum pump group B, an intelligent electric control box, a waste gas treatment box, a pump gas-water separator A and a pump gas-water separator B are fixedly installed above the device support, the tank support is connected with the device support through bolts, a vacuum tank is arranged above the tank support, a sewage inlet pipe and a standby pipe are fixedly connected to the top of the vacuum tank, the bottom of the vacuum tank is connected with the cam rotor pump group A and the cam rotor pump group B through sewage suction pipes A and B respectively, the top of the vacuum tank is also connected with the standby pipe, the standby pipe is controlled by a standby pipe valve, balance pipe valves are also connected between the vacuum tank and the sewage suction pipes A and B, and balance pipe valve A and balance pipe valve B are arranged at the two ends of the balance pipe valve.

[0007] Preferably, the double-redundancy pump group system comprises the claw type vacuum pump group A and the claw type vacuum pump group B, the claw type vacuum pump group A and the claw type vacuum pump group B are connected with the vacuum tank through a vacuumizing main pipe, a vacuum main gate valve and a condensate water collector are fixedly installed on the vacuumizing main pipe, the cam rotor pump group A is connected with the vacuum tank through the sewage suction pipe A and is connected with a sewage outlet pipe through a pipeline damper A, the cam rotor pump group B is connected with the vacuum tank through the sewage suction pipe B and is connected with the sewage outlet pipe through a pipeline damper B, and the condensate water collector is installed at a lowest point flange interface of the vacuumizing main pipe.

[0008] The condensate water collector is integrated at the lowest point of the vacuumizing main pipe, has the advantages of automatically collecting and removing condensate water in gas, preventing liquid hammer from damaging the vacuum pump group, and connecting the cam rotor pump group A with the sewage outlet pipe through the pipeline damper A, thereby absorbing pump body vibration energy and reducing the risk of pipeline stress rupture.

[0009] Preferably, the intelligent control system comprises a liquid level meter A and a liquid level switch A installed on the vacuum tank, feeding a liquid level signal to an intelligent electric control box to start and stop the cam rotor pump group A and the cam rotor pump group B, a pressure gauge and a pressure transmitter are installed on the vacuum tank, monitoring vacuum degree and controlling start and stop of the claw type vacuum pump group A and the claw type vacuum pump group B, the vacuum tank 3 is also provided with a pressure gauge 42 and a pressure transmitter 43 for monitoring vacuum degree and controlling start and stop of the claw type vacuum pump group 5 and the claw type vacuum pump group 8, and the vacuum tank 3 is also provided with a liquid level pipe 41 for locally visualizing display of tank liquid level.

[0010] The pressure transmitter is arranged to monitor vacuum tank negative pressure value in real time, has the advantages of dynamically controlling the claw type vacuum pump group / start and stop, avoiding energy waste caused by excessively high vacuum degree setting, and cooperating with the liquid level switch A to link the cam rotor pump group, thereby precisely starting and stopping the sewage pump and preventing tank liquid level overflow or dry running.

[0011] Preferably, the auxiliary unit comprises a condensate water circulation system and a waste gas purification system, the condensate water circulation system comprises a condensate water collection tank for storing condensate water, a top side of the condensate water collection tank is provided with an access interface of a condensate water collection main pipe, an inlet end of the condensate water collection main pipe is branched connected to the following components: a drain port of the condensate water collector is connected to the bottom of the collector through a condensate water collection branch pipe; a drain valve outlet of a pump air-water separator A and a drain valve outlet of a pump air-water separator B, a condensate water collection pipe valve is installed at a middle section of the condensate water collection main pipe, an inlet end of a condensate water suction pipe is connected to a bottom outlet of the condensate water collection tank, a condensate water suction pipe valve is arranged on a pipeline of the condensate water suction pipe, an outlet end of the condensate water suction pipe valve is connected to a middle upper interface of a vacuum tank, a liquid level meter B and a liquid level switch B are installed on a side wall of the condensate water collection tank, an output cable of the liquid level switch B is directly connected to a control end of the condensate water suction pipe valve. Exhaust ports of the claw vacuum pump group A and the claw vacuum pump group B are connected to an air inlet flange of a waste gas treatment tank through an exhaust main pipe, a top center of the waste gas treatment tank is vertically connected to an exhaust outlet pipe for discharging purified gas.

[0012] The condensate water suction pipe valve is controlled by the liquid level switch B, condensate water in the collection tank is automatically pumped back to the vacuum tank for reuse, zero liquid discharge is realized, the exhaust outlet pipe is vertically connected to the top center of the waste gas treatment tank, air flow distribution is balanced, and waste gas purification efficiency is maximized.

[0013] Preferably, the vacuum main pipe is divided into vacuum branch pipe valve A and vacuum branch pipe valve B to control the double vacuum pump passage, the sewage outlet pipe is divided into sewage outlet pipe valve A and sewage outlet pipe valve B to control the double sewage pump passage, the vacuum branch pipe valve A is located at the interface flange of the vacuum main pipe and the claw vacuum pump group A.

[0014] The vacuum branch pipe valve A is located at the interface of the pump group A, physical isolation of single pump maintenance is realized, the system continuous vacuum pumping capability is maintained, the sewage outlet pipe valve A is located at the output end of the cam rotor pump A, sewage backflow is prevented, and pump body shutdown safety is ensured.

[0015] Preferably, the balance pipe valve is connected to the two ends of the sewage suction pipe A, the sewage suction pipe B and the vacuum tank, and balance pipe valve A and balance pipe valve B are arranged to balance the negative pressure at the pump inlet, the balance pipe valve A is installed at the connection node of the balance pipe valve and the sewage suction pipe A, and the balance pipe valve B is installed at the connection node of the balance pipe valve and the sewage suction pipe B.

[0016] The balance pipe valve is three-way connected to the vacuum tank and the sewage suction pipe A / B, the negative pressure at the pump suction inlet is balanced, the sewage discharge resistance is reduced, the balance pipe valve A is installed at the vertical pipe section, sludge deposition to block the valve is avoided, and the adjustment benefit is realized.

[0017] Preferably, the equipment support, the tank support, the vacuum tank, the double-redundancy pump set system, the intelligent control system and the auxiliary unit are integrated into a single skid-mounted module formed by the equipment support and the tank support, each pipeline is rigidly connected through flanges or welding, and the whole can be moved and transported.

[0018] By arranging the flange-welded pipelines, the equipment support and the tank support, and integrating the skid-mounted module, the whole can be conveniently hoisted and transported, and the installation time on site is reduced.

[0019] The present application has the following beneficial effects: The whole skid-mounted module formed by the equipment support and the tank support realizes prefabricated production in a factory and rapid deployment on site, greatly reduces the installation cost and time, the double-redundancy pump set cam rotor pump A / B / claw vacuum pump A / B / supports the fault switching of "one use and one backup" and the "double-pump parallel connection" large-flow mode, combines the claw vacuum pump set-85kPa high vacuum degree and 8.5-meter self-suction capacity, meets the full-scene demand from daily sewage to peak load, and saves more than 40% of the land occupation compared with the traditional split pump station, completely solves the installation problem in a space-limited area.

[0020] The exhaust gas is purified by the exhaust gas treatment box, then discharged through the exhaust outlet pipe, and air pollution is completely eliminated; the condensate water generated during operation is collected through the condensate water collector→collection tank→condensate water suction pipe valve closed loop recycling to the vacuum tank for reuse, ensuring that there is no liquid overflow; in combination with the wear-free design of the claw vacuum pump / and elastomer cam rotor pump / and the real-time monitoring and automatic start-stop of the liquid level and vacuum degree by the intelligent electric control box, the whole year is free of manual maintenance, and the operation and maintenance cost tends to be zero. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0022] Figure 1 is a schematic view of the upper shaft side 1 of the skid-mounted vacuum sewage pump station provided by the embodiments of the present application; Figure 2 is a schematic view of the upper shaft side 2 of the skid-mounted vacuum sewage pump station provided by the embodiments of the present application; Figure 3 is a schematic view of the upper shaft side 3 of the skid-mounted vacuum sewage pump station provided by the embodiments of the present application; Figure 4 is a schematic view of the lower shaft side 4 of the skid-mounted vacuum sewage pump station provided by the embodiments of the present application; Figure 5Figure 1 is a schematic diagram of the lower shaft side 1 of the pry-mounted vacuum sewage pump station provided by the embodiment of the present application; Figure 6 Figure 2 is a schematic diagram of the lower shaft side 2 of the pry-mounted vacuum sewage pump station provided by the embodiment of the present application; Figure 7 Figure 3 is a schematic diagram of the lower shaft side 3 of the pry-mounted vacuum sewage pump station provided by the embodiment of the present application; Figure 8 Figure 4 is a schematic diagram of the upper shaft side 4 of the pry-mounted vacuum sewage pump station provided by the embodiment of the present application.

[0023] In the figure: 1, equipment support; 2, tank support; 3, vacuum tank; 4, cam rotor pump group A; 5, claw vacuum pump group A; 6, intelligent electric control box; 7, cam rotor pump group B; 8, claw vacuum pump group B; 9, waste gas treatment box; 10, vacuum main gate valve; 11, vacuum main pipe; 12, condensate water collection box; 13, condensate water collection main pipe; 14, sewage inlet pipe; 15, standby pipe valve; 16, condensate water suction pipe; 17, sewage outlet pipe; 18, sewage inlet pipe gate valve; 19, sewage suction pipe valve A; 20, sewage suction pipe valve B; 21, sewage suction pipe B; 22, sewage suction pipe A; 23, pipe shock absorber A; 24, sewage outlet pipe valve A; 25, pipe shock absorber B; 26, sewage outlet pipe valve B; 27, condensate water collector; 28, vacuum branch pipe valve A; 29, vacuum branch pipe valve B; 30, pump air-water separator A; 31, pump air-water separator B; 32, exhaust main pipe; 33, condensate water collection pipe valve; 34, exhaust outlet pipe; 35, condensate water collection branch pipe; 36, balance pipe valve B; 37, liquid level meter B; 38, liquid level switch B; 39, condensate water suction pipe valve; 40, balance pipe valve; 41, liquid level pipe; 42, pressure gauge; 43, pressure transmitter; 44, liquid level meter A; 45, liquid level switch A; 46, standby pipe; 47, balance pipe valve A. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] According to the embodiments of the present application, a pry-mounted vacuum sewage pump station is provided. EMBODIMENT

[0026] As Figures 1-5As shown, the pry-mounted vacuum sewage pump station according to the embodiment of the application comprises a device support 1, a tank support 2, a vacuum tank 3, a double-redundancy pump group system, an intelligent control system and an auxiliary unit. The device support 1 is fixedly provided with a cam rotor pump group A 4, a claw vacuum pump group A 5, a cam rotor pump group B 7, a claw vacuum pump group B 8, an intelligent electric control box 6, a waste gas treatment box 9, a pump gas-water separator A 30 and a pump gas-water separator B 31 on the top. The tank support 2 is connected with the device support 1 by bolts. The top of the tank support 2 is provided with the vacuum tank 3. The top of the vacuum tank 3 is fixedly connected with a sewage inlet pipe 14 and a standby pipe 46. The bottom is connected with the cam rotor pump group A 4 and the cam rotor pump group B 7 through a sewage suction pipe A 22 and a sewage suction pipe B 21 respectively. The top of the vacuum tank 3 is also connected with the standby pipe 46. The standby pipe 46 is controlled by a standby pipe valve 15. The vacuum tank 3 is also connected with the balance pipe valve 40 between the sewage suction pipe A 22 and the sewage suction pipe B 21. The balance pipe valve 40 is provided with a balance pipe valve A 47 and a balance pipe valve B 36 at both ends.

[0027] In the embodiment, the double-redundancy pump group system comprises the claw vacuum pump group A 5 and the claw vacuum pump group B 8. The claw vacuum pump group A 5 and the claw vacuum pump group B 8 are connected with the vacuum tank 3 through a vacuum main pipe 11. The vacuum main pipe 11 is fixedly provided with a vacuum main gate valve 10 and a condensate water collector 27. The cam rotor pump group A 4 is connected with the vacuum tank 3 through the sewage suction pipe A 22 and connected with a sewage outlet pipe 17 through a pipeline damper A 23. The cam rotor pump group B 7 is connected with the vacuum tank 3 through the sewage suction pipe B 21 and connected with the sewage outlet pipe 17 through a pipeline damper B 25. The condensate water collector 27 is installed at the lowest point flange interface of the vacuum main pipe 11.

[0028] The condensate water collector 27 is integrated at the lowest point of the vacuum main pipe 11, which has the advantages of automatically collecting and removing the condensate water in the gas, preventing liquid hammer from damaging the vacuum pump group, and cooperating with the pipeline damper A 23 to connect the cam rotor pump group A 4 and the sewage outlet pipe 17, thereby absorbing the vibration energy of the pump body and reducing the risk of pipeline stress cracking.

[0029] In the embodiment, the intelligent control system comprises a liquid level meter A 44 and a liquid level switch A 45 installed on the vacuum tank 3, which feed back the liquid level signal to the intelligent electric control box 6 to start and stop the cam rotor pump group A 4 and the cam rotor pump group B 7. A pressure gauge 42 and a pressure transmitter 43 are installed on the vacuum tank 3 to monitor the vacuum degree and control the start and stop of the claw vacuum pump group A 5 and the claw vacuum pump group B 8. The vacuum tank 3 is also provided with the pressure gauge 42 and the pressure transmitter 43 for monitoring the vacuum degree and controlling the start and stop of the claw vacuum pump group A 5 and the claw vacuum pump group B 8. The vacuum tank 3 is also provided with a liquid level pipe 41 for local visual display of the tank liquid level.

[0030] The negative pressure value of the vacuum tank 3 is monitored in real time through the pressure transmitter 43, the claw type vacuum pump group 5 / 8 is started and stopped dynamically to avoid energy waste caused by setting the vacuum degree too high; the liquid level switch A45 is linked with the cam rotor pump group 4 / 7 to accurately start and stop the sewage pump and prevent the tank liquid level from overflowing or dry running.

[0031] In the embodiment, the auxiliary unit includes a condensate water circulation system and a waste gas purification system. The condensate water circulation system includes a condensate water collection tank 12 for storing condensate water. The top side of the condensate water collection tank 12 is provided with an access interface of a condensate water collection main pipe 13. The inlet end of the condensate water collection main pipe 13 is branched connected to the following components: a drain port of a condensate water collector 27 which is connected to the bottom of the collector through a condensate water collection branch pipe 35; a drain valve outlet of a pump air-water separator A 30 and a drain valve outlet of a pump air-water separator B 31. A condensate water collection pipe valve 33 is installed in the middle section of the condensate water collection main pipe 13. The bottom outlet of the condensate water collection tank 12 is connected to the inlet end of a condensate water suction pipe 16. A condensate water suction pipe valve 39 is provided on the pipeline of the condensate water suction pipe 16, and the outlet end thereof is connected to the middle upper interface of the vacuum tank 3. A liquid level meter B 37 and a liquid level switch B 38 are installed on the side wall of the condensate water collection tank 12. The output cable of the liquid level switch B 38 is directly connected to the control end of the condensate water suction pipe valve 39. The exhaust ports of the claw type vacuum pump group A 5 and the claw type vacuum pump group B 8 are connected to the inlet flange of the waste gas treatment tank 9 through an exhaust main pipe 32. The top center of the waste gas treatment tank 9 is vertically connected to an exhaust outlet pipe 34 for discharging purified gas.

[0032] The condensate water suction pipe valve 39 is controlled by the liquid level switch B 38, which automatically pumps the condensate water in the collection tank 12 back to the vacuum tank 3 for reuse, achieving zero liquid discharge. The exhaust outlet pipe 34 is vertically connected to the top center of the waste gas treatment tank 9, which has the benefits of balanced airflow distribution and maximized waste gas purification efficiency.

[0033] In the embodiment, the vacuum main pipe 11 is divided into a vacuum branch pipe valve A 28 and a vacuum branch pipe valve B 29 to control the double vacuum pump passage. The sewage outlet pipe 17 is divided into a sewage outlet pipe valve A 24 and a sewage outlet pipe valve B 26 to control the double sewage pump passage. The vacuum branch pipe valve A 28 is located at the interface flange of the vacuum main pipe 11 and the claw type vacuum pump group A 5.

[0034] The vacuum branch pipe valve A 28 is located at the interface of the pump group A 5, which has the physical isolation of single pump maintenance and maintains the continuous vacuum pumping capability of the system. The sewage outlet pipe valve A 24 is located at the output end of the cam rotor pump A 4, which can prevent sewage backflow and ensure the safety of the pump body shutdown.

[0035] In this embodiment, the balance pipe valve 40 is connected to the sewage suction pipe A 22, the sewage suction pipe B 21 and the two ends of the vacuum tank 3, and the balance pipe valve A 47 and the balance pipe valve B 36 are arranged separately for balancing the negative pressure at the pump inlet, the balance pipe valve A 47 is installed at the connection node of the balance pipe valve 40 and the sewage suction pipe A 22, and the balance pipe valve B 36 is installed at the connection node of the balance pipe valve 40 and the sewage suction pipe B 21.

[0036] By setting the balance pipe valve 40, the vacuum tank 3 and the sewage suction pipe A / B 22 / 21 are connected in three directions, the negative pressure at the pump inlet can be balanced, the sewage resistance can be reduced, the balance pipe valve A 47 is installed in the vertical pipe section, the sludge deposition and the valve blockage can be avoided, and the adjustment benefit can be realized.

[0037] In this embodiment, the equipment support 1, the tank support 2, the vacuum tank 3, the double-redundancy pump group system, the intelligent control system and the auxiliary unit are integrated into a single skid-mounted module formed by the equipment support 1 and the tank support 2, and each pipeline is rigidly connected through flanges or welding, and the whole can be moved and transported.

[0038] By setting the flange-welded pipeline and the equipment support and the tank support 1, 2 integrated skid-mounted module, the whole can be conveniently hoisted and transported, and the installation time on site can be reduced.

[0039] In order to facilitate the understanding of the above technical solutions of the present application, the working principle or operation mode of the present application in the actual process will be described in detail.

[0040] In actual application, 1. Gas suction and discharge process When the negative pressure value in the vacuum tank 3 is lower than the set interval: The pressure transmitter 43 sends an opening signal → transmitted to the intelligent electric control box 6 through the cable → the operation system starts the claw type vacuum pump group A or B 5 / 8 one by one as a backup; Gas suction path: Vacuum tank 3 → vacuum main pipe 11 → pump gas-water separator A / B 30 / 31 → claw type vacuum pump group A / B 5 / 8 → exhaust main pipe 32 → waste gas treatment tank 9 → exhaust outlet pipe 34 discharged to the outdoor.

[0041] When the negative pressure value is higher than the set interval: The pressure transmitter 43 sends a closing signal → the intelligent electric control box 6 stops the pump.

[0042] 2. Sewage collection process External sewage under the action of negative pressure in the vacuum tank 3 → through the sewage inlet pipe 14 → into the vacuum tank 3 for temporary storage.

[0043] 3. Sewage discharge process When the liquid level in the vacuum tank 3 is higher than the set high value: The liquid level switch A45 sends an open signal → the intelligent electric control box 6 → starts the cam rotor pump set A or B 4 / 7 one by one; Sewage discharge path: Vacuum tank 3 → sewage suction pipe A / B 22 / 21 → cam rotor pump set A / B 4 / 7 → pipe shock absorber A / B 23 / 25 → sewage outlet pipe 17 discharges to the municipal pipe network.

[0044] When the liquid level is lower than the set low value: The liquid level switch A45 sends a close signal → the intelligent electric control box 6 stops the pump.

[0045] 4. Condensate collection and discharge process 1. Condensate generation and collection Condensate generated by the claw vacuum pump set 5 / 8 → enters the condensate collector 27 through the vacuum main pipe 11; The condensate collector 27 automatically discharges water → condensate collection branch pipe 35 → condensate collection main pipe 13 → condensate collection tank 12; Condensate of the pump gas-water separator A / B 30 / 31 → directly discharged into the condensate collection main pipe 13 → collected into the collection tank 12.

[0046] 2. Condensate recovery When the liquid level in the collection tank 12 is higher than the set high value: The liquid level switch B38 sends an open valve signal → the intelligent electric control box 6 → opens the condensate suction pipe valve 39; Recovery path: Condensate collection tank 12 → condensate suction pipe 16 → mixed with sewage in the upper interface of the vacuum tank 3 and temporarily stored; When the liquid level is lower than the set low value: The liquid level switch B38 sends a valve closing signal → closes the condensate suction pipe valve 39.

[0047] In summary, by means of the above technical scheme of the present application, the overall pry installation module formed by the equipment support 1 and the tank support 2 realizes prefabricated production in the factory and rapid deployment on site, greatly reduces the installation cost and time; the double-redundancy pump group cam rotor pump A / B 4 / 7 and the claw vacuum pump A / B 5 / 8 support "one active and one standby" fault switching and "double-pump parallel connection" high-flow mode, combined with the claw vacuum pump group-85kPa high vacuum degree and 8.5-meter self-suction capacity, meet the full-scene demand from daily sewage to peak load, and the compact layout saves more than 40% of the land occupation compared with the traditional split pump station, completely solves the installation problem in the space-limited area, the exhaust gas is purified by the exhaust gas treatment box 9 and then discharged through the exhaust outlet pipe 34 to meet the emission standard, and air pollution is eliminated; the condensate water generated during operation is collected by the condensate water collector 27→the collection box 12→the condensate water suction pipe valve 39, and then recycled to the vacuum tank 3 for reuse, ensuring no liquid overflow; combined with the non-wear design of the claw vacuum pump 5 / 8 and the elastomer cam rotor pump 4 / 7 and the real-time monitoring and automatic start-stop of the intelligent electric control box 6 on the liquid level 44 / 45 / 37 / 38 and the pressure transmitter 43, the annual manual maintenance is achieved, and the operation and maintenance cost tends to be zero.

[0048] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A skid-mounted vacuum sewage pump station, comprising an equipment support (1), a tank support (2), a vacuum tank (3), a dual redundant pump system, an intelligent control system, and auxiliary units, characterized in that, The equipment support (1) is fixedly mounted with a cam rotor pump group A (4), a claw vacuum pump group A (5), a cam rotor pump group B (7), a claw vacuum pump group B (8), an intelligent electrical control box (6), a waste gas treatment box (9), a pump gas-water separator A (30), and a pump gas-water separator B (31). The tank support (2) is connected to the equipment support (1) by bolts. A vacuum tank (3) is set on the top of the tank support (2). The top of the vacuum tank (3) is fixedly connected with a sewage inlet pipe (14) and a spare. The bottom of the pipe (46) is connected to the cam rotor pump group A (4) and the cam rotor pump group B (7) respectively through the sewage suction pipe A (22) and the sewage suction pipe B (21). The top of the vacuum tank (3) is also connected to the spare pipe (46), which is controlled by the spare pipe valve (15). The vacuum tank (3) is also connected to the sewage suction pipe A (22) and the sewage suction pipe B (21) by a balance pipe valve (40). The two ends of the balance pipe valve (40) are respectively provided with balance pipe valve A (47) and balance pipe valve B (36).

2. The skid-mounted vacuum sewage pump station according to claim 1, characterized in that, The dual redundant pump system includes a claw vacuum pump group A (5) and a claw vacuum pump group B (8). The claw vacuum pump group A (5) and the claw vacuum pump group B (8) are connected to the vacuum tank (3) through the vacuum main pipe (11). The vacuum main pipe (11) is fixedly installed with a vacuum main gate valve (10) and a condensate collector (27). The cam rotor pump group A (4) is connected to the vacuum tank (3) through the sewage suction pipe A (22) and is connected to the sewage outlet pipe (17) through the pipe damper A (23). The cam rotor pump group B (7) is connected to the vacuum tank (3) through the sewage suction pipe B (21) and is connected to the sewage outlet pipe (17) through the pipe damper B (25). The condensate collector (27) is installed at the lowest flange interface of the vacuum main pipe (11).

3. The skid-mounted vacuum sewage pump station according to claim 2, characterized in that, The intelligent control system includes a level gauge A (44) and a level switch A (45) installed in the vacuum tank (3), which feeds back the level signal to the intelligent electrical control box (6) to start and stop the cam rotor pump group A (4) and the cam rotor pump group B (7). The pressure gauge (42) and the pressure transmitter (43) are installed in the vacuum tank (3) to monitor the vacuum level and control the start and stop of the claw vacuum pump group A (5) and the claw vacuum pump group B (8). The vacuum tank (3) is also equipped with a pressure gauge (42) and a pressure transmitter (43) to monitor the vacuum level and control the start and stop of the claw vacuum pump group A (5) and the claw vacuum pump group B (8). The vacuum tank (3) is also equipped with a level tube (41) for local visualization display of the tank level.

4. The skid-mounted vacuum sewage pump station according to claim 2, characterized in that, The auxiliary unit includes a condensate circulation system and an exhaust gas purification system. The condensate circulation system includes a condensate collection tank (12) for storing condensate. The top side of the condensate collection tank (12) is provided with an access interface for a condensate collection main pipe (13). The inlet end of the condensate collection main pipe (13) is branched to connect to the following components: the drain outlet of the condensate collector (27) (vertically connected to the bottom of the collector via a condensate collection branch pipe (35); the drain valve outlet of the pump gas-water separator A (30); and the pump gas-water separator B (31). The drain valve outlet of the condensate collection main pipe (13) is equipped with a condensate collection pipe valve (33) in the middle section. The bottom outlet of the condensate collection tank (12) is connected to the inlet end of the condensate suction pipe (16). A condensate suction pipe valve (39) is installed on the pipeline of the condensate suction pipe (16), and its outlet end is connected to the upper middle interface of the vacuum tank (3). A level gauge B (37) and a level switch B (38) are installed on the side wall of the condensate collection tank (12). The output cable of the level switch B (38) is directly connected to the control end of the condensate suction pipe valve (39). The exhaust ports of the claw vacuum pump group A (5) and the claw vacuum pump group B (8) are connected to the air inlet flange of the waste gas treatment box (9) via the exhaust pipe (32). The exhaust outlet pipe (34) is vertically connected to the top center of the waste gas treatment box (9) for discharging purified gas.

5. The skid-mounted vacuum sewage pump station according to claim 2, characterized in that, The main vacuum pipe (11) is equipped with vacuum branch valve A (28) and vacuum branch valve B (29) to control the dual vacuum pump passage. The sewage outlet pipe (17) is equipped with sewage outlet valve A (24) and sewage outlet valve B (26) to control the dual sewage pump passage. The vacuum branch valve A (28) is located at the interface flange of the main vacuum pipe (11) and the claw vacuum pump group A (5).

6. The skid-mounted vacuum sewage pump station according to claim 1, characterized in that, The balancing valve (40) is connected to the sewage suction pipe A (22), the sewage suction pipe B (21) and the vacuum tank (3) at both ends, and is provided with balancing valve A (47) and balancing valve B (36) respectively, for balancing the negative pressure at the pump inlet. The balancing valve A (47) is installed at the connection node between the balancing valve (40) and the sewage suction pipe A (22), and the balancing valve B (36) is installed at the connection node between the balancing valve (40) and the sewage suction pipe B (21).

7. The skid-mounted vacuum sewage pump station according to claim 1, characterized in that, The equipment support (1), tank support (2), vacuum tank (3), dual redundant pump system, intelligent control system and auxiliary unit are integrated into a single skid-mounted module composed of the equipment support (1) and the tank support (2). The various pipes are rigidly connected by flanges or welding, and the whole can be moved and transported.

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