CN213506062U

CN213506062U - Multifunctional inactivation device for waste water in biosafety laboratory

Info

Publication number: CN213506062U
Application number: CN202022065196.6U
Authority: CN
Inventors: 杨竞凯; 吴海铭; 陈咏; 代青; 杨章志
Original assignee: Institute of Medical Biology of CAMS and PUMC
Current assignee: Institute of Medical Biology of CAMS and PUMC
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-06-22
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a multifunctional inactivation device for waste water in a biological safety laboratory, which comprises a sterilization tank, a tubular heat exchanger, a waste water diversion device and a waste water inlet pipe; the wastewater diversion device consists of a shell and a diversion plate; a wastewater inlet pipe, a first wastewater conveying branch pipe and a second wastewater conveying branch pipe are connected to the shell; the top end surface of the flow distribution plate is higher than the wastewater inlet and the large-flow wastewater outlet; the tail end of the first wastewater conveying branch pipe is connected to the liquid inlet end of a heat exchange mechanism pipe in the tubular heat exchanger, a heating steam inlet and a condensate water outlet are respectively arranged on the tubular heat exchanger, and the tail end of the heat exchange mechanism pipe penetrates through the shell of the tubular heat exchanger and is connected with a small-flow wastewater outlet pipe; the tail end of the second wastewater conveying branch pipe is connected to a liquid inlet of the sterilization tank. The device is extensive in applicability to biological safety laboratory waste water deactivation, not only can carry out intermittent type formula deactivation to waste water, but also can carry out continuous type deactivation to waste water.

Description

Multifunctional inactivation device for waste water in biosafety laboratory

Technical Field

The utility model relates to a biological safety laboratory waste water treatment equipment field, in particular to multi-functional inactivation device of biological safety laboratory waste water.

Background

The waste water inactivation system usually adopts heat treatment, chemical method or combination of heat treatment and chemical method, and can effectively kill virus and bacteria in the waste water in the laboratory. According to different operation modes, the method can be divided into a continuous mode and a batch mode.

The intermittent wastewater treatment is to collect wastewater through a sterilization tank, heat the wastewater to a certain temperature by adopting a steam or electric heating mode and then inactivate the wastewater. The continuous inactivation is to heat the pipeline in the process of passing the wastewater through the pipeline, so as to achieve inactivation and realize continuous treatment of the wastewater.

In the prior art, the inactivation of the waste water of the biological safety laboratory is generally carried out by adopting a single inactivation device. In the practical application process, the problem of poor applicability exists. Because the flow of wastewater generated by the inactivation laboratory is unstable, the flow of wastewater generated is sometimes small, and the quantity of wastewater generated is sometimes large. When the inactivation laboratory produces small-flow wastewater intermittently or continuously, the energy consumption is high if the sterilization tank is adopted for intermittent inactivation because the wastewater quantity is small, and obviously, the conventional sterilization tank intermittent inactivation mode is not applicable and is suitable for inactivation by adopting an inactivation device with low cost; and when the flow of the waste water is large, the method is suitable for intermittent inactivation by adopting a sterilization tank.

In addition, the existing inactivation device or the inactivation mode also has the problem that the inactivation cannot be sufficiently and effectively carried out on the wastewater flowing through the pipeline.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a multi-functional inactivation device of biological safety laboratory waste water, to biological safety laboratory waste water inactivation extensive applicability, not only can carry out intermittent type formula inactivation to waste water, but also can carry out the continuous type inactivation to waste water. In addition, after the inactivation of the wastewater is completed, the waste liquid can be subjected to steam high-temperature sterilization and disinfection through a pipeline.

In order to solve the technical problem, the utility model discloses a technical scheme does:

a multifunctional inactivation device for biological safety laboratory wastewater comprises a sterilization tank, a tubular heat exchanger, a wastewater diversion device and a wastewater inlet pipe; the wastewater diversion device consists of a shell and a diversion plate; the shell is provided with a top wall, a side wall and a bottom wall, the top wall, the side wall and the bottom wall surround to form a shunting chamber, and a shunting plate is arranged in the shunting chamber; a certain gap is formed between the top end of the splitter plate and the top wall, and the front end and the rear end of the splitter plate are respectively connected to the side walls; the flow distribution plate divides the flow distribution chamber into a small flow chamber and a large flow chamber, a wastewater inlet and a small flow wastewater outlet are respectively arranged on the small flow chamber, the wastewater inlet is connected with a wastewater inlet pipe, and a first wastewater conveying branch pipe is connected to the small flow wastewater outlet; the large-flow chamber is provided with a large-flow wastewater outlet, and the large-flow wastewater outlet is connected with a second wastewater conveying branch pipe; the top end surface of the flow distribution plate is higher than the wastewater inlet and the large-flow wastewater outlet; the tail end of the first wastewater conveying branch pipe is connected to the liquid inlet end of a heat exchange mechanism pipe in the tubular heat exchanger, a heating steam inlet and a condensate outlet are respectively arranged on the tubular heat exchanger, and the tail end of the heat exchange mechanism pipe penetrates through the shell of the tubular heat exchanger and is connected with a small-flow wastewater outlet pipe; the tail end of the second wastewater conveying branch pipe is connected to a liquid inlet of the sterilization tank.

Furthermore, the sterilization tank consists of an inner container, a shell and an interlayer arranged between the inner container and the shell; the inner container is respectively connected with a first steam inlet pipe, a pressure release valve and a wastewater outlet pipe, and the first steam inlet pipe is connected with a steam source; the small-flow wastewater outlet pipe is connected with a pressure relief main pipe, and the pressure relief main pipe is provided with a pressure relief valve and a sterilization filter; the waste water inlet pipe, the second waste water conveying branch pipe, the pressure relief main pipe and the small-flow waste water outlet pipe are respectively provided with a stop valve.

Furthermore, a second steam inlet pipe is connected to the interlayer and is connected with a steam source.

Furthermore, the first steam inlet pipe, the second steam inlet pipe and the inner container are respectively connected with a compressed air pipeline, and the compressed air pipelines are connected with a compressed air source.

Further, a dispersing and stirring device is arranged in the inner cavity of the inner container; the dispersing and stirring device comprises an accommodating chamber, a hollow rotating shaft, an upper bearing seat, a lower bearing seat, a connecting pipe and a hollow dispersing mechanism; the accommodating chamber is arranged in the inner cavity of the inner container in a hanging manner through a connecting rod, and a hollow rotating shaft is arranged in the inner cavity of the accommodating chamber; the top end of the hollow rotating shaft is movably connected to the upper bearing seat, the top end of the upper bearing seat is fixed to the top wall of the accommodating chamber, the lower portion of the hollow rotating shaft is movably connected to the lower bearing seat, and the lower bearing seat is installed on the bottom wall of the accommodating chamber; a plurality of blades are arranged on the outer side wall of the hollow rotating shaft along the axis direction of the hollow rotating shaft; the hollow rotating shaft is provided with a steam inlet; the bottom end of the hollow rotating shaft is connected with a connecting pipe, the bottom end of the connecting pipe extends into an inner cavity of the inner container outside the accommodating chamber, and the extending tail end of the connecting pipe is connected with a hollow dispersing mechanism; a plurality of jet holes are formed in the lower end face of the hollow dispersing mechanism; the accommodating chamber is connected with the first steam inlet pipe, the steam outlet of the first steam inlet pipe faces the blades, and the steam in the first steam inlet pipe can drive the blades to rotate relative to the accommodating chamber and drive the hollow dispersing mechanism to rotate.

Further, the hollow dispersion mechanism is in a shape of a circular disc, a circular tube with two sealed ends, a square tube with two sealed ends or a spiral blade.

The utility model has the advantages that:

(1) the utility model discloses a waste water reposition of redundant personnel device's design can shunt the waste water that biosafety laboratory produced, cooperates sterilization jar and tubular heat exchanger, and when the waste water volume that biosafety laboratory produced was less, waste water then water conservancy diversion was gone to tubular heat exchanger and is carried out continuous type sterilization this moment, realizes the purpose of energy saving from this; when the amount of the wastewater generated by the biological safety laboratory is large, the wastewater is respectively and simultaneously introduced into the tubular heat exchanger for continuous sterilization and introduced into the sterilization tank for intermittent sterilization, so that the aim of high-efficiency sterilization is fulfilled.

(2) The utility model discloses a sterilization jar, tubular heat exchanger and waste water diverging device's joint design, can directly send into steam in sterilization jar's the inner bag, realized the rapid heating up to sterilization jar on the one hand, on the other hand can also be through the control of stop valve, cause this part steam in proper order that the second waste water carries to be in charge, waste water diverging device, first waste water carries to be in charge and tubular heat exchanger, and finally follow the pressure release and be responsible for and discharge, realized the purpose of the abundant effective deactivation of waste water flow pipeline from this, and to this section pipeline of waste water inlet tube, then can carry out the inactivation treatment through chemical reagent, thereby the utility model provides a waste water flow pipeline can realize the abundant deactivation of full route, does not have any blind area.

(3) The dispersing and stirring device is arranged in the inner cavity of the inner container, high-pressure steam (compressed air) from the first steam inlet pipe enters the accommodating cavity, and the high-pressure steam (compressed air) impacts the blade to rotate relative to the accommodating cavity and drives the hollow dispersing mechanism to rotate; meanwhile, high-pressure steam (compressed air) enters the hollow rotating shaft through a steam inlet arranged on the hollow rotating shaft, enters the hollow dispersing mechanism through a connecting pipe, and is finally sprayed out from a spray hole arranged on the lower end surface of the hollow dispersing mechanism; the steam (compressed air) entering the inner container through the dispersing and stirring device heats (cools) the sterilized wastewater after being dispersed, and meanwhile, when the sterilized wastewater is heated (cooled), the hollow dispersing mechanism is in a rotating state, so that the sterilized wastewater can be stirred, and the heating (cooling) of the sterilized wastewater is promoted.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure, 1-a sterilization tank, 1 a-an inner container, 1 b-an outer shell, 1 c-an interlayer, 2-a tubular heat exchanger, 3-a wastewater diversion device, 4-a wastewater inlet pipe, 5-a wastewater inlet, 6-a small-flow wastewater outlet, 7-a connecting rod, 8-a first wastewater conveying branch pipe, 9-a large-flow wastewater outlet, 10-a second wastewater conveying branch pipe, 11-a small-flow wastewater outlet pipe, 12-a first steam inlet pipe, 13-a pressure relief valve, 14-a wastewater outlet pipe, 15-a pressure relief main pipe, 16-a stop valve, 17-a second steam inlet pipe, 18-a compressed air pipeline, 19-a containing chamber, 20-a heat exchange mechanism pipe, 21-a heating steam inlet and 22-a condensed water outlet, 23-hollow rotating shaft, 24-upper bearing seat, 25-lower bearing seat, 26-connecting pipe, 27-hollow dispersing mechanism, 28-blade, 29-steam inlet, 30-flow dividing plate, 31-top wall, 32-side wall, 33-bottom wall, 34-flow dividing chamber, 340-small flow chamber, 341-large flow chamber, 35-pressure relief valve and 36-sterilizing filter.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, a multifunctional inactivation device for waste water in a biological safety laboratory comprises a sterilization tank 1, a tubular heat exchanger 2, a waste water diversion device 3 and a waste water inlet pipe 4; the wastewater diversion device 3 consists of a shell and a diversion plate 30; the shell is provided with a top wall 31, a side wall 32 and a bottom wall 33, the top wall 31, the side wall 32 and the bottom wall 33 surround to form a diversion chamber 34, and a diversion plate 30 is arranged in the diversion chamber 34; a certain gap is formed between the top end of the splitter plate 30 and the top wall 31, and the front end and the rear end of the splitter plate 30 are respectively connected to the side walls 32; the flow distribution plate 30 divides the flow distribution chamber 34 into a small flow chamber 340 and a large flow chamber 341, a wastewater inlet 5 and a small flow wastewater outlet 6 are respectively arranged on the small flow chamber 340, the wastewater inlet 5 is connected with a wastewater inlet pipe 7, and a first wastewater conveying branch pipe 8 is connected on the small flow wastewater outlet 6; the large-flow chamber 341 is provided with a large-flow wastewater outlet 9, and the large-flow wastewater outlet 9 is connected with a second wastewater conveying branch pipe 10; the top end surface of the flow distribution plate 30 is higher than the wastewater inlet 5 and the large-flow wastewater outlet 9; the tail end of the first wastewater conveying branch pipe 8 is connected to the liquid inlet end of a heat exchange mechanism pipe 20 in the tubular heat exchanger 2, the tubular heat exchanger 2 is respectively provided with a heating steam inlet 21 and a condensate outlet 22, and the tail end of the heat exchange mechanism pipe 20 penetrates through the shell of the tubular heat exchanger 20 and is connected with a small-flow wastewater outlet pipe 11; the end of the second wastewater conveying branch pipe 10 is connected to a liquid inlet of the sterilization tank 1.

Further, the sterilization tank 1 is composed of an inner container 1a, a shell 1b and an interlayer 1c arranged between the inner container 1a and the shell 1 b; the inner container 1a is respectively connected with a first steam inlet pipe 12, a pressure release valve 13 and a wastewater outlet pipe 14, and the first steam inlet pipe 12 is connected with a steam source; the small-flow wastewater outlet pipe 11 is connected with a pressure relief main pipe 15, and the pressure relief main pipe is provided with a pressure relief valve 35 and a sterilizing filter 36; and the wastewater inlet pipe 4, the second wastewater conveying branch pipe 10, the small-flow wastewater outlet pipe 11 and the pressure relief main pipe 15 are respectively provided with a stop valve 16.

Specifically, the interlayer 1c is connected with a second steam inlet pipe 17, and the second steam inlet pipe 17 is connected with a steam source. Through the design, the inner container 1a can be indirectly heated and heated through the steam introduced by the second steam inlet pipe 17.

Specifically, the first steam inlet pipe 12, the second steam inlet pipe 17 and the inner container 1a are respectively connected with a compressed air pipeline 18, and the compressed air pipeline 18 is connected with a compressed air source. The introduction of compressed air is convenient for the inner container 1a to be cooled down more quickly after the inactivation of the waste water in the inner container 1a is finished.

Specifically, a dispersing and stirring device is arranged in the inner cavity of the inner container 1 a; the dispersing and stirring device comprises an accommodating chamber 19, a hollow rotating shaft 23, an upper bearing seat 24, a lower bearing seat 25, a connecting pipe 26 and a hollow dispersing mechanism 27; the accommodating chamber 19 is arranged in the inner cavity of the inner container 1a in a suspending way through a connecting rod 7, and a hollow rotating shaft 23 is arranged in the inner cavity of the accommodating chamber 19; the top end of the hollow rotating shaft 23 is movably connected to the upper bearing seat 24, the top end of the upper bearing seat 24 is fixed to the top wall of the accommodating chamber 19, the lower part of the hollow rotating shaft 23 is movably connected to the lower bearing seat 25, and the lower bearing seat 25 is installed on the bottom wall of the accommodating chamber 19; a plurality of blades 28 are arranged on the outer side wall of the hollow rotating shaft 23 along the axial direction of the hollow rotating shaft 23; the hollow rotating shaft 28 is provided with a steam inlet 29; the bottom end of the hollow rotating shaft 23 is connected with a connecting pipe 26, the bottom end of the connecting pipe 26 extends into the inner cavity of the inner container 1a outside the accommodating chamber 19, and the extending tail end of the connecting pipe 26 is connected with a hollow dispersion mechanism 27; a plurality of jet holes are formed on the lower end surface of the hollow dispersion mechanism 27; the accommodating chamber 19 is connected to the first steam inlet pipe 12, the steam outlet of the first steam inlet pipe 12 faces the blades 28, and the steam in the first steam inlet pipe 12 can drive the blades 28 to rotate relative to the accommodating chamber 19 and drive the hollow dispersing mechanism 27 to rotate.

Further, the hollow dispersing mechanism 27 may be in the shape of a circular disk, a circular tube with sealed ends, a square tube with sealed ends, or a spiral blade.

The dispersing and stirring device in the utility model has the functions of dispersing (compressed air) steam, and dividing the whole steam into a plurality of small steam strands, thereby being beneficial to uniformly and efficiently heating (cooling) the sterilized wastewater; on the other hand, the high-pressure steam (compressed air) impacts the blades 28 to rotate relative to the accommodating chamber 19 and drive the hollow dispersing mechanism 27 to rotate, and the hollow dispersing mechanism 27 rotates to play a role in stirring the sterilized wastewater in the liner 1 a.

The utility model discloses a theory of operation:

the utility model discloses a waste water diverging device 3's design, can shunt the waste water that biosafety laboratory produced, cooperate sterilization jar 1 and tubular heat exchanger 2, when the waste water volume that biosafety laboratory produced is less, waste water then water conservancy diversion carries out continuous type sterilization in tubular heat exchanger 2 this moment, realizes the purpose of saving the energy consumption from this; when the amount of the wastewater generated by the biosafety laboratory is large, the wastewater is respectively and simultaneously introduced into the tubular heat exchanger 2 for continuous sterilization and the sterilization tank 1 for intermittent sterilization, thereby realizing the purpose of high-efficiency sterilization.

In addition, steam can be directly sent into in waiting to disinfect the inner bag 1a of back sterilization jar 1 after the completion, through the control of stop valve 16, leads this part of steam to in second waste water carries in proper order and divides pipe 10, waste water diverging device 3, first waste water carries and divides pipe 8 and tubular heat exchanger 2 to finally discharge from pressure release person in charge 15, realized the purpose of the abundant effective deactivation of waste water flow through the pipeline from this.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a multi-functional inactivation device of biological safety laboratory waste water which characterized in that: comprises a sterilization tank (1), a tubular heat exchanger (2), a wastewater diversion device (3) and a wastewater inlet pipe (4); the wastewater diversion device (3) consists of a shell and a diversion plate (30); the shell is provided with a top wall (31), a side wall (32) and a bottom wall (33), the top wall (31), the side wall (32) and the bottom wall (33) surround to form a flow dividing chamber (34), and a flow dividing plate (30) is arranged in the flow dividing chamber (34); a certain gap is formed between the top end of the splitter plate (30) and the top wall (31), and the front end and the rear end of the splitter plate (30) are respectively connected to the side wall (32); the flow distribution plate (30) divides the flow distribution chamber (34) into a small flow chamber (340) and a large flow chamber (341), the small flow chamber (340) is respectively provided with a wastewater inlet (5) and a small flow wastewater outlet (6), the wastewater inlet (5) is connected with a wastewater inlet pipe (4), and the small flow wastewater outlet (6) is connected with a first wastewater conveying branch pipe (8); a large-flow wastewater outlet (9) is formed in the large-flow chamber (341), and a second wastewater conveying branch pipe (10) is connected to the large-flow wastewater outlet (9); the top end surface of the flow distribution plate (30) is higher than the wastewater inlet (5) and the large-flow wastewater outlet (9); the tail end of the first wastewater conveying branch pipe (8) is connected to the liquid inlet end of a heat exchange mechanism pipe (20) in the tubular heat exchanger (2), a heating steam inlet (21) and a condensate water outlet (22) are respectively arranged on the tubular heat exchanger (2), and the tail end of the heat exchange mechanism pipe (20) penetrates through the shell of the tubular heat exchanger (2) and then is connected with a small-flow wastewater outlet pipe (11); the tail end of the second wastewater conveying branch pipe (10) is connected to a liquid inlet of the sterilization tank (1).

2. The multifunctional inactivation device for waste water in a biosafety laboratory according to claim 1, characterized in that: the sterilization tank (1) is composed of an inner container (1a), an outer shell (1b) and an interlayer (1c) arranged between the inner container (1a) and the outer shell (1 b); the inner container (1a) is respectively connected with a first steam inlet pipe (12), a pressure release valve (13) and a wastewater outlet pipe (14), and the first steam inlet pipe (12) is connected with a steam source; the small-flow wastewater outlet pipe (11) is connected with a pressure relief main pipe (15), and the pressure relief main pipe (15) is provided with a pressure relief valve (35) and a sterilizing filter (36); and the wastewater inlet pipe (4), the second wastewater conveying branch pipe (10), the small-flow wastewater outlet pipe (11) and the pressure relief main pipe (15) are respectively provided with a stop valve (16).

3. The multifunctional inactivation device for waste water in a biosafety laboratory according to claim 2, characterized in that: the interlayer (1c) is connected with a second steam inlet pipe (17), and the second steam inlet pipe (17) is connected with a steam source.

4. The multifunctional inactivation device for waste water in a biosafety laboratory according to claim 3, wherein: the first steam inlet pipe (12), the second steam inlet pipe (17) and the inner container (1a) are respectively connected with a compressed air pipeline (18), and the compressed air pipeline (18) is connected with a compressed air source.

5. The multifunctional inactivation device for waste water of biosafety laboratory according to any one of claims 2 to 4, characterized in that: a dispersing and stirring device is arranged in the inner cavity of the inner container (1 a); the dispersing and stirring device comprises an accommodating chamber (19), a hollow rotating shaft (23), an upper bearing seat (24), a lower bearing seat (25), a connecting pipe (26) and a hollow dispersing mechanism (27); the accommodating chamber (19) is arranged in the inner cavity of the inner container (1a) in a hanging manner through a connecting rod (7), and a hollow rotating shaft (23) is arranged in the inner cavity of the accommodating chamber (19); the top end of the hollow rotating shaft (23) is movably connected to the upper bearing seat (24), the top end of the upper bearing seat (24) is fixed to the top wall of the accommodating chamber (19), the lower part of the hollow rotating shaft (23) is movably connected to the lower bearing seat (25), and the lower bearing seat (25) is installed on the bottom wall of the accommodating chamber (19); a plurality of blades (28) are arranged on the outer side wall of the hollow rotating shaft (23) along the axial direction of the hollow rotating shaft (23); a steam inlet (29) is arranged on the hollow rotating shaft (23); the bottom end of the hollow rotating shaft (23) is connected with a connecting pipe (26), the bottom end of the connecting pipe (26) extends into the inner cavity of the inner container (1a) outside the accommodating chamber (19), and the extending tail end of the connecting pipe (26) is connected with a hollow dispersing mechanism (27); a plurality of jet holes are formed in the lower end face of the hollow dispersing mechanism (27); the accommodating chamber (19) is connected with the first steam inlet pipe (12), the steam outlet of the first steam inlet pipe (12) faces the blades (28), and the steam in the first steam inlet pipe (12) can drive the blades (28) to rotate relative to the accommodating chamber (19) and drive the hollow dispersing mechanism (27) to rotate.

6. The multifunctional inactivation device for waste water in a biosafety laboratory according to claim 5, wherein: the hollow dispersion mechanism (27) is disc-shaped, circular-tube-shaped with two sealed ends, square-tube-shaped with two sealed ends or helical-blade-shaped.