Independent vacuum drainage system

Abstract

The utility model relates to the technical field of sewage discharge devices, and particularly discloses an independent vacuum drainage system. The first pressure storage chamber is communicated with the air inlet end of the vacuum pump and is used for storing negative pressure; the second pressure storage chamber communicates with the air outlet end of the vacuum pump and is used for storing positive pressure; the pressure relief pipe fitting is communicated with the first pressure storage chamber and the second pressure storage chamber; the sewage inlet pipe fitting and the sewage discharge pipe fitting are both communicated with the first pressure storage chamber; the valve body assembly is used for controlling opening and closing of each pipe fitting; according to the utility model, the first pressure storage chamber and the second pressure storage chamber are arranged and can be used for respectively storing negative pressure and positive pressure generated by the vacuum pump during one-time vacuumizing action; one-time sewage suction and sewage discharge actions of sewage are completed, only one-time vacuum pumping action needs to be conducted through the vacuum pump, and energy consumption in the whole vacuum drainage system can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage discharge devices, in particular to an independent vacuum drainage system. Background Art

[0002] With the development of economy and social progress, energy conservation has become inevitable and social consensus, and vacuum drainage systems are widely used in toilet sewage work.

[0003] For example, Chinese patent CN202220911372.X provides a vacuum suction and pressure discharge device with a negative pressure source, including a vacuum storage tank, a liquid ring vacuum pump and a control cabinet; wherein, when the vacuum storage tank is in the sewage collection stage, the liquid ring vacuum pump evacuates the vacuum storage tank, and the vacuum storage tank is in a negative pressure state, thereby realizing the collection and storage of sewage; when the vacuum storage tank is in the sewage discharge stage, the liquid ring vacuum pump sucks gas under atmospheric pressure, compresses it and transports it to the vacuum storage tank, which serves as a pressure source for sewage discharge in the vacuum storage tank, thereby realizing the automatic discharge of sewage inside the vacuum storage tank.

[0004] Although, in the above technical scheme, only one vacuum circulation pump is needed for sewage collection and sewage discharge, thus reducing the use of sewage pumps; however, in the above technical scheme, to complete one sewage suction and sewage discharge action of the vacuum storage tank, a liquid ring vacuum pump is required to perform two actions, namely, evacuation and inflation, into the vacuum storage tank, thus increasing the energy consumption in the overall vacuum drainage system. Utility Model Content

[0005] In view of the above problems, the utility model provides an independent vacuum drainage system, the purpose of which is to reduce the energy consumption of vacuum sewage drainage.

[0006] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:

[0007] An independent vacuum drainage system is provided, comprising: a vacuum pump; a first pressure storage chamber connected to the air inlet end of the vacuum pump and used to store negative pressure; a second pressure storage chamber connected to the air outlet end of the vacuum pump and used to store positive pressure; a pressure relief pipe connecting the first pressure storage chamber and the second pressure storage chamber; a sewage inlet pipe and a sewage outlet pipe, both connected to the first pressure storage chamber; and a valve body assembly for controlling the opening and closing of each pipe.

[0008] Furthermore, the system also includes: a tank body and a partition, the tank body is installed vertically, the partition is installed horizontally in the tank body, and the second pressure storage chamber and the first pressure storage chamber are formed on the upper and lower sides of the partition respectively.

[0009] Furthermore, the valve body assembly includes: a plurality of one-way valves, which are respectively installed on the pressure relief pipe fitting, the sewage inlet pipe fitting and the sewage discharge pipe fitting.

[0010] Furthermore, the valve body assembly also includes: a first solenoid valve and a second solenoid valve, the first solenoid valve is installed on the pressure relief pipe fitting and is located between the one-way valve and the second pressure storage chamber; the second solenoid valve is installed on the sewage inlet pipe fitting and is located between the one-way valve and the first pressure storage chamber.

[0011] Furthermore, the system also includes: two pressure sensors, respectively installed in the first pressure storage chamber and the second pressure storage chamber; and two pressure gauges, respectively used to display the pressure values ​​measured by the two pressure sensors.

[0012] The beneficial effects of the utility model are as follows: in the utility model, a first pressure storage chamber and a second pressure storage chamber are provided, which can respectively store the negative pressure and the positive pressure generated by a vacuum pump performing a vacuum pumping action; to complete a sewage suction and sewage discharge action, the vacuum pump only needs to perform a vacuum pumping action once, which can effectively reduce the energy consumption in the overall vacuum drainage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall connection and installation of the vacuum drainage system provided in an embodiment of the present application.

[0014] Figure 2 A schematic diagram of the internal structure of the tank provided in an embodiment of the present application.

[0015] Among them, 1. vacuum pump; 21. first pressure storage chamber; 22. second pressure storage chamber; 31. pressure relief pipe; 32. sewage inlet pipe; 33. sewage outlet pipe; 4. tank body; 41. partition; 5. one-way valve; 61. first solenoid valve; 62. second solenoid valve; 71. pressure sensor; 72. pressure gauge. DETAILED DESCRIPTION

[0016] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Reference Figure 1 As shown, the embodiment of the present application discloses an independent vacuum drainage system, including: a vacuum pump 1; a first pressure storage chamber 21, connected to the air inlet end of the vacuum pump 1, for storing negative pressure; a second pressure storage chamber 22, connected to the air outlet end of the vacuum pump 1, for storing positive pressure; a pressure relief pipe 31, connecting the first pressure storage chamber 21 and the second pressure storage chamber 22; a sewage inlet pipe 32 and a sewage discharge pipe 33, both connected to the first pressure storage chamber 21; a valve body assembly, for controlling the opening and closing of each pipe.

[0018] In specific use, before the sewage suction action is carried out, the pressure relief pipe 31, the sewage inlet pipe 32 and the sewage discharge pipe 33 are all in a closed state, the vacuum pump 1 is started and works for a fixed time, and can simultaneously evacuate and inflate the first pressure storage chamber 21 and the second pressure storage chamber 22; compared with the atmospheric pressure, the air pressure in the first pressure storage chamber 21 is lower than the atmospheric pressure, and negative pressure is stored in the first pressure storage chamber 21, and the air pressure in the second pressure storage chamber 22 is higher than the atmospheric pressure, and positive pressure is stored in the second pressure storage chamber 22.

[0019] When sewage needs to be sucked in, the sewage inlet pipe 32 is opened to connect the first pressure storage chamber 21 with the place where sewage needs to be discharged. Under the action of negative pressure, the first pressure storage chamber 21 sucks the sewage into the first pressure storage chamber 21; when sewage needs to be discharged, the sewage inlet pipe 32 is closed, and the pressure relief pipe 31 and the sewage discharge pipe 33 are opened. Under the action of positive pressure, the air in the second pressure storage chamber 22 squeezes out the sewage in the first pressure storage chamber 21 and discharges it to the designated place through the sewage discharge pipe 33.

[0020] In the utility model, a first pressure storage chamber 21 and a second pressure storage chamber 22 are provided, which can respectively store the negative pressure and the positive pressure generated by a vacuum pump 1 performing a vacuuming action; to complete a sewage suction and sewage discharge action, the vacuum pump 1 only needs to perform a vacuuming action once, which can effectively reduce the energy consumption in the overall vacuum drainage system.

[0021] Preferably, the vacuum pump 1 can be a liquid ring vacuum pump.

[0022] Reference Figure 2 As shown, the system also includes: a tank body 4 and a partition 41, the tank body 4 is installed vertically, and the partition 41 is installed horizontally in the tank body 4, and a second pressure storage chamber 22 and a first pressure storage chamber 21 are formed on the upper and lower sides of the partition 41 respectively; wherein the tank body 4 and the partition 41 are integrally formed by casting to ensure overall strength and prevent deformation.

[0023] Among them, the valve body assembly includes: a plurality of one-way valves 5, which are respectively installed on the pressure relief pipe fitting 31, the sewage inlet pipe fitting 32 and the sewage discharge pipe fitting 33; on the pressure relief pipe fitting 31, by arranging the one-way valve 5, it is possible to prevent the gas from flowing back from the first pressure storage chamber 21 to the second pressure storage chamber 22; on the sewage inlet pipe fitting 32 and the sewage discharge pipe fitting 33, it is possible to prevent the sewage from flowing back.

[0024] Among them, the valve body assembly also includes: a first solenoid valve 61 and a second solenoid valve 62. The first solenoid valve 61 is installed on the pressure relief pipe fitting 31, and is located between the one-way valve 5 and the second pressure storage chamber 22. On the pressure relief pipe fitting 31, the first solenoid valve 61 is used to block the second pressure storage chamber 22 and the one-way valve 5 to prevent the vacuum pump 1 from squeezing the valve core of the one-way valve 5 when inflating the second pressure storage chamber 22, causing the first pressure storage chamber 21 and the second pressure storage chamber 22 to be connected; the second solenoid valve 62 is installed on the sewage inlet pipe fitting 32, and is located between the one-way valve 5 and the first pressure storage chamber 21. The second solenoid valve 62 is used to block the first pressure storage chamber 21 and the one-way valve 5 to prevent the vacuum pump 1 from pulling the valve core of the one-way valve 5 when pumping air into the second pressure storage chamber 22, causing the first pressure storage chamber 21 to be connected to the outside.

[0025] The system also includes: two pressure sensors 71, which are respectively installed in the first pressure storage chamber 21 and the second pressure storage chamber 22; two pressure gauges 72, which are respectively used to display the pressure values ​​measured by the two pressure sensors 71; by setting the pressure sensors 71, the actual pressure values ​​in the first pressure storage chamber 21 and the second pressure storage chamber 22 can be detected, and by setting the pressure gauges 72, the staff can directly know the pressure values ​​in the first pressure storage chamber 21 and the second pressure storage chamber 22, which is convenient for judging whether it is within the design range and convenient for maintenance.

[0026] It is worth mentioning that a PLC control terminal can be installed to transmit electrical signals through the PLC programming language; the start and stop of the vacuum pump 1 can be controlled by the PLC control terminal to complete the pressure storage action, and the opening and closing of the first solenoid valve 61 and the second solenoid valve 62 can be controlled by the PLC control terminal to complete the sewage suction and discharge actions, thereby improving the automation of the drainage system.

[0027] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the equivalent technology of the claims of the present invention, the present invention is also intended to include these modifications and variations.

Claims

1. An independent vacuum drainage system, characterized in that: include: Vacuum pump (1); A first pressure storage chamber (21) is connected to the air inlet of the vacuum pump (1) and is used to store negative pressure; The second pressure storage chamber (22) is connected to the gas outlet of the vacuum pump (1) and is used to store positive pressure; A pressure relief pipe (31) connecting the first pressure storage chamber (21) and the second pressure storage chamber (22); The sewage inlet pipe (32) and the sewage outlet pipe (33) are both connected to the first pressure storage chamber (21); The valve body assembly is used to control the opening and closing of each pipe fitting.

2. The independent vacuum drainage system according to claim 1, characterized in that: Also includes: The tank body (4) and the partition (41) are installed vertically, and the partition (41) is installed horizontally in the tank body (4). A second pressure storage chamber (22) and a first pressure storage chamber (21) are formed on the upper and lower sides of the partition (41), respectively.

3. The independent vacuum drainage system according to claim 1, characterized in that: The valve body assembly comprises: a plurality of one-way valves (5) which are respectively installed on a pressure relief pipe fitting (31), a sewage inlet pipe fitting (32) and a sewage discharge pipe fitting (33).

4. The independent vacuum drainage system according to claim 3, characterized in that: The valve body assembly further comprises: a first solenoid valve (61) and a second solenoid valve (62); the first solenoid valve (61) is installed on the pressure relief pipe (31) and is located between the one-way valve (5) and the second pressure storage chamber (22); the second solenoid valve (62) is installed on the sewage inlet pipe (32) and is located between the one-way valve (5) and the first pressure storage chamber (21).

5. The independent vacuum drainage system according to claim 1, characterized in that: Also includes: Two pressure sensors (71) are respectively installed in the first pressure storage chamber (21) and the second pressure storage chamber (22); The two pressure gauges (72) are used to display the pressure values ​​measured by the two pressure sensors (71) respectively.

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