CN111519741A

CN111519741A - Blocking type anti-pollution clean floor drain and use method thereof

Info

Publication number: CN111519741A
Application number: CN202010490844.4A
Authority: CN
Inventors: 樊丽娟; 龚平
Original assignee: Kunming Longjin Pharmaceutical Co ltd
Current assignee: Kunming Longjin Pharmaceutical Co ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2020-08-11

Abstract

The invention discloses a blocking type anti-pollution clean floor drain, which comprises a floor drain main body (1), a check valve (2), a floor drain isolation valve (3), a trap (4), a sewage discharge pipeline (5), a pressure sensor (6) and a vacuum pipeline (7); the floor drain main body (1) is arranged on the clean room ground (8), an elbow is connected between the floor drain main body (1) and the vertical check valve (2), the floor drain main body (1) is connected with a floor drain isolation valve (3), and the outlet end of the floor drain isolation valve (3) is connected with a trap (4); the outlet end of the trap (4) is connected to a sewage discharge pipeline (5), the outlet end of the vertical check valve (2) is connected to a vacuum pipeline (7), and the pressure sensor (6) is installed on the vacuum pipeline (7) through a tee joint.

Description

Blocking type anti-pollution clean floor drain and use method thereof

Technical Field

The invention relates to the related technical field of drainage structures, in particular to a floor drain, and particularly relates to a blocking type anti-pollution clean floor drain and a using method thereof.

Background

At present, in the drainage field, especially floor drains used in clean rooms adopt stainless steel sanitary floor drains shown in FIG. 1, water seals are arranged in the floor drains, and the clean rooms are blocked from being communicated with the external environment of a sewage pipeline through the water seals so as to ensure that the air in the clean rooms is not polluted; when the floor drain is used, the following states are available: firstly, when the floor drain is not used, as shown in fig. 1, the water seal 14 is filled with liquid (water or disinfectant), and the upper cover 12 of the floor drain is not opened, in this state, when the environment outside the sewage discharge pipeline is positive relative to the pressure of the clean room, the gas in the sewage discharge pipeline breaks through the water seal and enters the clean room through the gap between the upper cover 12 of the floor drain and the floor drain body 11, thereby causing the risk of pollution of the clean room (even if a multistage water seal series connection mode is adopted, the same pollution risk also exists); secondly, when the floor drain is used, as shown in fig. 2, the upper cover 12 of the floor drain is opened, and the clean room drains water through the floor drain, in this state, when the environment outside the sewage pipeline is positive relative to the pressure of the clean room, the gas in the sewage pipeline also breaks through the water seal, so that the risk of polluting the clean room is avoided; thirdly, the floor drain is sterilized and disinfected, as shown in fig. 3, the upper floor drain cover 12 and the inner floor drain cover 13 are both opened, and in the state, the environment outside the sewage pipeline is directly communicated with the clean room, so that the pollution risk is further increased; in addition, when the floor drain is not used, if the liquid in the water seal 14 is non-clean liquid, a large amount of bacteria can be bred, and the risk of pollution to a clean room is caused by a gap between the floor drain upper cover 12 and the floor drain body 11; meanwhile, if the floor drain is lack of supervision, liquid in the floor drain water seal 14 is easily drained when the pressure of the environment outside the sewage discharge pipeline is negative relative to the pressure of the clean room, so that the water seal is ineffective, and the risk of pollution of the clean room is further brought.

Disclosure of Invention

The invention aims to provide a blocking type anti-pollution clean floor drain to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a blocking type anti-pollution clean floor drain is shown in figure 4 and comprises a floor drain main body, a check valve, a floor drain isolation valve, a trap, a sewage discharge pipeline, a pressure sensor and a vacuum pipeline; the floor drain main body is arranged on the ground of the clean room, an elbow is connected between the floor drain main body and the vertical check valve, the floor drain main body is connected with a floor drain isolation valve, and the outlet end of the floor drain isolation valve is connected with a trap; the outlet end of the trap is connected to a sewage discharge pipeline, the outlet end of the vertical check valve is connected to a vacuum pipeline, and the pressure sensor is arranged on the vacuum pipeline through a tee joint.

Preferably, referring to fig. 4, 5 and 6, the floor drain main body comprises a floor drain body, a floor drain top cover, a floor drain main body lower port and a floor drain main body side port, the floor drain main body lower port is connected with a floor drain isolation valve, an elbow is connected between the floor drain main body side port and the vertical check valve, a top cover sealing ring is inlaid in a sealing groove of the floor drain top cover, a guide rod is integrally and threadedly connected below the floor drain top cover, the floor drain top cover is easy to disassemble during disinfection and sterilization of the floor drain due to the design, a guide rod pushing head is arranged at the tail end of the guide rod, the guide rod and the guide rod pushing head are in threaded connection, the design is easy to assemble, a compression spring is arranged between the guide rod pushing head and the floor drain top cover, the compression spring is sleeved on the.

Preferably, referring to fig. 6, the floor drain body is provided with a guide hole and a water blocking sheet, the guide hole is matched with the guide rod, and the water blocking sheet is positioned inside the side port of the floor drain body and used for preventing a large amount of drainage water from being sucked into the vacuum pipeline.

Preferably, referring to fig. 4 and 6, the lower port of the floor drain main body is connected with the upper port of a floor drain isolation valve, the lower port of the floor drain isolation valve is connected with the upper port of a trap, and the side port of the floor drain main body is connected with the front end of a vertical check valve through an elbow; the other end of the elbow is connected with a vertical check valve; the discharge port end of the vertical check valve is connected with the vacuum pipeline; the pressure sensor is arranged on the vacuum pipeline through a tee joint.

Specifically, referring to fig. 5, if the floor drain isolation valve is not opened, the floor drain top cover is tightly attached to the floor drain body 01 under the action of the compression spring, and sealing is realized through an upper cover sealing ring; when the isolating valve is opened, the floor drain top cover overcomes the resistance of a compression spring under the pushing of the valve core of the floor drain isolating valve, and pushes the guide rod through the guide rod pushing head, so that the floor drain top cover is opened; namely, the opening and closing state of the floor drain top cover 02 is determined by the opening and closing state of the floor drain isolation valve, and the floor drain top cover and the floor drain isolation valve are in a linkage state after being assembled;

therefore, the following steps are carried out: when the floor drain is not used, the environment outside the sewage pipeline is thoroughly isolated from the clean room through the upper cover sealing ring 03; meanwhile, the floor drain isolation valve realizes the isolation between a water seal (indicating water in the trap 4) and the floor drain top cover 02.

The working principle of the invention is as follows:

the vacuum degree of the water ring vacuum pump is controlled in a variable-frequency constant-pressure control mode (the water ring vacuum pump is butted with a vacuum pipeline through a pipeline, which is not shown in the figure, and the water ring vacuum pump provides vacuum for the system and is a necessary component of the invention), so that the vacuum pipeline can maintain the constant vacuum degree all the time; the vacuum degree in the vacuum pipeline is monitored by a pressure sensor, the monitored value is used as a precondition for opening the floor drain, and the floor drain can be opened by a floor drain switch when the vacuum degree monitored value is normal (the description: 1. the floor drain switch is not shown, the floor drain switch is used for controlling the opening and closing of a floor drain isolation valve, and the floor drain isolation valve is a pneumatic valve or an electric valve; 2. the floor drain switch is arranged in a clean room and is a necessary component of the invention);

as can be seen, the invention is not allowed to be opened without vacuum;

referring to fig. 4, the method of using the present invention is described as follows:

1) the vacuum state of the vacuum pipeline is maintained constantly (the water ring vacuum pump provides vacuum, and constant-pressure variable-frequency control is carried out on the water ring vacuum pump to control the vacuum degree in the vacuum pipeline), under the action of the vacuum, the vertical check valve is opened, and the inner cavity of the floor drain body is in a negative pressure state constantly;

2) the floor drain is not opened (the floor drain switch is not shown and is arranged in a clean room), and the floor drain is in an unused state; when the floor drain is not used, even if the sealing between the top cover (see figure 5) of the floor drain and the floor drain body 01 (see figure 5) fails, or the sealing of the floor drain isolation valve fails, the invention can also thoroughly isolate the environment outside the sewage discharge pipeline from the clean room under the action of vacuum;

3) opening a floor drain switch, discharging or sterilizing the floor drain, wherein at the moment, a floor drain isolation valve and a floor drain top cover (see figure 5) are synchronously opened, and in the state, even if gas in the environment outside a sewage pipeline breaks through a water seal, the gas is in an ascending state, the ascending gas is inevitably pumped away in vacuum under the action of vacuum, and cannot enter a clean room to cause pollution;

4) after the floor drain is used, the floor drain isolation valve and the floor drain top cover (see figure 5) are synchronously closed by closing the floor drain switch, and the floor drain system returns to an unused state;

therefore, the invention introduces vacuum in addition to the forced isolation measures (the forced isolation measures refer to the addition of a floor drain isolation valve and the addition of a floor drain top cover sealing ring), so that the use safety of the floor drain in the clean room is greatly improved, and the invention has the characteristic of controllable process;

it should be noted that the invention can be installed on the floor of various clean rooms to form a controllable floor drain pollution discharge system, and can also be installed on various hand washing basins and hand washing basins in the clean rooms, and the isolation effect is equal.

Compared with the prior art, the invention has the beneficial effects that:

the problem that the environment outside a sewage discharge pipeline is not completely isolated from a clean room when the floor drain is not in use is solved; secondly, the problem that the environment outside the sewage discharge pipeline is not completely isolated from a clean room when the floor drain is in a use state (the use state refers to the discharge by utilizing the floor drain or the sterilization and disinfection of the floor drain); thirdly, the problem of isolation between the upper cover of the floor drain and a trap which is easy to breed bacteria is solved; fourthly, the reliability problem of the isolation effect of the floor drain is solved; fifthly, the problem of pollution risk caused by illegal operation of the floor drain is solved;

the first problem is solved by additionally arranging an upper cover sealing ring on the upper cover of the floor drain, and sealing the contact surface between the floor drain body and the upper cover of the floor drain by utilizing the upper cover sealing ring in the unused state of the floor drain;

the second problem is solved, a vacuum pipeline is additionally arranged on the floor drain, vacuum is maintained constantly, and isolation is realized through blocking of vacuum extraction;

the third problem to be solved is realized by additionally arranging a floor drain isolation valve between the floor drain body and the trap;

the fourth problem is solved by maintaining vacuum in the floor drain system all the time and performing forced protection by using the vacuum; under the vacuum forced protection, even if the upper cover sealing ring or the floor drain isolation valve fails, leaked ascending gas can be pumped away in vacuum;

the fifth problem is solved by a control mode that the floor drain system cannot be opened without vacuum, so that the possibility of illegal operation is avoided.

Drawings

FIG. 1 is a schematic diagram of a prior art closed state structure;

FIG. 2 is a schematic structural view of an upper cover of a floor drain in an open state in the prior art;

FIG. 3 is a schematic structural view showing the prior art in which both the upper floor drain cover and the inner floor drain cover are opened;

FIG. 4 is a schematic view of the overall installation of the present invention;

FIG. 5 is a schematic diagram of the main structure of the floor drain of the present invention;

FIG. 6 is a supplementary note of the main features of the floor drain of the present invention;

in the figure:

11. a floor drain body, 12, an upper floor drain cover, 13, an inner floor drain cover, 14, a water seal, 15, a sewage discharge pipeline, 16, a clean room floor,

1. a floor drain main body, 2, a vertical check valve, 3, a floor drain isolation valve, 4, a trap, 5, a sewage discharge pipeline, 6, a pressure sensor, 7, a vacuum pipeline, 8, a clean room floor,

01. the floor drain comprises a floor drain body, 02, a floor drain upper cover, 03, an upper cover sealing ring, 04, a guide rod, 05, a compression spring, 06, a guide rod pushing head, 07, a pore plate, 08, a floor drain main body lower port, 09, a floor drain main body side port, 010, a water retaining sheet and 011, a guide hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a technical scheme that:

a blocking type anti-pollution clean floor drain is shown in figure 4 and comprises a floor drain main body 1, a check valve 2, a floor drain isolation valve 3, a trap 4, a sewage discharge pipeline 5, a pressure sensor 6 and a vacuum pipeline 7; the floor drain main body 1 is arranged on the clean room ground 8, an elbow is connected between the floor drain main body 1 and the vertical check valve 2, the floor drain main body 1 is connected with a floor drain isolation valve 3, and the outlet end of the floor drain isolation valve 3 is connected with a trap 4; the outlet end of the trap 4 is connected to a sewage discharge pipeline 5, the outlet end of the vertical check valve 2 is connected to a vacuum pipeline 7, and a pressure sensor 6 is arranged on the vacuum pipeline 7 through a tee joint.

Referring to fig. 4, 5 and 6, the floor drain main body 1 comprises a floor drain body 01, a floor drain top cover 02, a floor drain main body lower port 08 and a floor drain main body side port 09, the floor drain main body lower port 08 is connected with a floor drain isolation valve 3, an elbow is connected between the floor drain main body side port 09 and the vertical check valve 2, a top cover sealing ring 03 is embedded in a sealing groove of the floor drain top cover 02, a guide rod 04 is integrally connected with the lower part of the floor drain top cover 02 in a threaded manner, the floor drain top cover 02 is easy to detach during disinfection and sterilization of the floor drain due to the design, a guide rod push head 06 is arranged at the tail end of the guide rod 04, the guide rod 04 is connected with the guide rod push head 06 in a threaded manner, the design is easy to assemble, a compression spring 05 is arranged between the guide rod push head 06 and the floor drain top cover 02, used for stopping slag.

Referring to fig. 6, the floor drain body 01 is provided with a guide hole 011 and a water blocking piece 010, the guide hole 011 is matched with the guide rod 04, and the water blocking piece 010 is located inside a side port 09 of the floor drain body to prevent a large amount of drainage from being sucked into the vacuum pipeline 7.

Referring to fig. 4 and 6, a lower port 08 of the floor drain main body is connected with an upper port of a floor drain isolation valve 3, a lower port of the floor drain isolation valve 3 is connected with an upper port of a trap 4, and a side port 09 of the floor drain main body is connected with the front end of a vertical check valve 2 through an elbow; the other end of the elbow is connected with a vertical check valve 2; the outlet end of the vertical check valve 2 is connected with a vacuum pipeline 7; the pressure sensor 6 is installed on the vacuum pipeline 7 through a tee joint.

Specifically, referring to fig. 5, if the floor drain isolation valve 3 is not opened, the floor drain top cover 02 is tightly attached to the floor drain body 01 under the action of the compression spring 05, and sealing is realized through the upper cover sealing ring 03; when the isolation valve 3 is opened, the floor drain top cover 02 overcomes the resistance of a compression spring 04 under the pushing of a valve core of the floor drain isolation valve 3, and pushes a guide rod 04 through a guide rod pushing head 06, so that the floor drain top cover 02 is opened; namely, the opening and closing state of the floor drain top cover 02 is determined by the opening and closing state of the floor drain isolation valve 3, and the floor drain top cover and the floor drain isolation valve are in a linkage state after being assembled;

therefore, the following steps are carried out: when the floor drain is not used, the environment outside the sewage pipeline is thoroughly isolated from the clean room through the upper cover sealing ring 03; meanwhile, the floor drain isolation valve 3 realizes isolation between a water seal (indicating water in the trap 4) and the floor drain top cover 02.

The working principle of the invention is as follows:

the vacuum degree of the water ring vacuum pump is controlled in a variable-frequency constant-pressure control mode (the water ring vacuum pump is connected with a vacuum pipeline 7 through a pipeline, which is not shown in the figure, and provides vacuum for the system, and the water ring vacuum pump is a necessary component of the invention), so that the vacuum pipeline 7 maintains constant vacuum degree at any time; the vacuum degree in the vacuum pipeline 7 is monitored by the pressure sensor 6, the monitored value is used as a precondition for opening the floor drain, and the floor drain can be opened by a floor drain switch when the vacuum degree monitored value is normal (1. the floor drain switch is not shown, the floor drain switch is used for controlling the opening and closing of a floor drain isolation valve 3, the floor drain isolation valve 3 is a pneumatic valve or an electric valve, 2. the floor drain switch is arranged in a clean room and is a necessary component of the invention);

as can be seen, the invention is not allowed to be opened without vacuum;

1) the vacuum state of the vacuum pipeline 7 is maintained constantly (the water ring vacuum pump provides vacuum, and constant-pressure variable-frequency control is carried out on the water ring vacuum pump to control the vacuum degree in the vacuum pipeline 7), under the action of the vacuum, the vertical check valve 2 is opened, and the inner cavity of the floor drain body 1 is in a negative pressure state constantly;

2) the floor drain is not opened (the floor drain switch is not shown and is arranged in a clean room), and the floor drain is in an unused state; when the floor drain is not used, even if the sealing between the floor drain top cover 02 (see figure 5) and the floor drain body 01 (see figure 5) fails, or the sealing of the floor drain isolation valve 3 fails, the invention can also thoroughly isolate the environment outside the sewage discharge pipeline from the clean room under the vacuum action;

3) opening a floor drain switch, discharging or sterilizing the floor drain, wherein at the moment, a floor drain isolation valve 3 and a floor drain top cover 02 (see figure 5) are synchronously opened, and in the state, even if gas in the environment outside a sewage pipeline breaks through a water seal, the gas is in an upward state, and under the action of vacuum, the upward gas is inevitably pumped away by vacuum and cannot enter a clean room to cause pollution;

4) after the floor drain is used, the floor drain isolation valve 3 and the floor drain top cover 02 (see figure 5) are synchronously closed by closing the floor drain switch, and the floor drain system returns to an unused state;

therefore, the invention introduces vacuum in addition to the forced isolation measures (the forced isolation measures refer to the addition of the floor drain isolation valve 3 and the addition of the floor drain top cover sealing ring 03), so that the use safety of the floor drain in the clean room is greatly improved, and the invention has the characteristic of controllable process;

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anti-pollution clean floor drain of separation formula which characterized in that: the floor drain comprises a floor drain main body (1), a check valve (2), a floor drain isolation valve (3), a trap (4), a sewage discharge pipeline (5), a pressure sensor (6) and a vacuum pipeline (7); the floor drain main body (1) is arranged on the clean room ground (8), an elbow is connected between the floor drain main body (1) and the vertical check valve (2), the floor drain main body (1) is connected with a floor drain isolation valve (3), and the outlet end of the floor drain isolation valve (3) is connected with a trap (4); the outlet end of the trap (4) is connected to a sewage discharge pipeline (5), the outlet end of the vertical check valve (2) is connected to a vacuum pipeline (7), and the pressure sensor (6) is installed on the vacuum pipeline (7) through a tee joint.

2. The barrier anti-contamination clean floor drain according to claim 1, characterized in that: the floor drain main body (1) comprises a floor drain body (01) and a floor drain top cover (02), the floor drain comprises a floor drain main body lower port (08) and a floor drain main body side port (09), the floor drain main body lower port (08) is connected with a floor drain isolation valve (3), an elbow is connected between the floor drain main body side port (09) and the vertical check valve (2), a top cover sealing ring (03) is embedded in a sealing groove of a floor drain top cover (02), a guide rod (04) is integrally connected with the lower portion of the floor drain top cover (02) in a threaded mode, a guide rod pushing head (06) is arranged at the tail end of the guide rod (04), the guide rod (04) is connected with the guide rod pushing head (06) in a threaded mode, a compression spring (05) is arranged between the guide rod pushing head (06) and the floor drain top cover (02), the compression spring (05) is sleeved on the guide rod (04), a pore plate (07) is arranged inside the floor drain body (.

3. The barrier anti-contamination clean floor drain according to claim 1, characterized in that: the floor drain is characterized in that a guide hole (011) and a water retaining sheet (010) are arranged on the floor drain body (01), the guide hole (011) is matched with the guide rod (04), and the water retaining sheet (010) is located on the inner side of a side port (09) of the floor drain body.

4. The barrier anti-contamination clean floor drain according to claim 1, characterized in that: the lower port (08) of the floor drain main body is connected with the upper port of a floor drain isolation valve (3), the lower port of the floor drain isolation valve (3) is connected with the upper port of a trap (4), and the side port (09) of the floor drain main body is connected with the front end of a vertical check valve (2) through an elbow; the other end of the elbow is connected with a vertical check valve (2); the outlet end of the vertical check valve (2) is connected with a vacuum pipeline (7); the pressure sensor (6) is arranged on the vacuum pipeline (7) through a tee joint.

5. A blocking anti-pollution clean floor drain and a using method thereof are characterized in that:

1) the vacuum state of the vacuum pipeline (7) is maintained constantly, the water ring vacuum pump provides vacuum, the water ring vacuum pump is subjected to constant-pressure variable-frequency control to control the vacuum degree in the vacuum pipeline (7), the vertical check valve (2) is opened under the action of the vacuum, and the inner cavity of the floor drain body 1 is in a negative pressure state constantly;

2) the floor drain is in an unused state without opening a floor drain switch; when the floor drain is not used, even if the sealing between the floor drain top cover (02) and the floor drain body 01 fails, or the sealing of the floor drain isolation valve (3) also fails, the environment outside the sewage discharge pipeline can be thoroughly isolated from the clean room under the action of vacuum;

3) opening a floor drain switch, discharging or sterilizing the floor drain, wherein at the moment, a floor drain isolation valve (3) and a floor drain top cover (02) are synchronously opened, and in the state, even if gas in the environment outside a sewage pipeline breaks through a water seal, the gas is in an ascending state, and under the action of vacuum, the ascending gas is inevitably pumped away by vacuum and cannot enter a clean room to cause pollution;

4) after the floor drain is used, the floor drain isolation valve (3) and the floor drain top cover (02) are synchronously closed by closing the floor drain switch, and the floor drain system returns to an unused state.