CN218741108U

CN218741108U - Pressure steam type tail gas sterilizer

Info

Publication number: CN218741108U
Application number: CN202222792449.9U
Authority: CN
Inventors: 王振干
Original assignee: Jiegao Fluid Technology Suzhou Co ltd
Current assignee: Jiegao Fluid Technology Suzhou Co ltd
Priority date: 2022-10-22
Filing date: 2022-10-22
Publication date: 2023-03-28
Anticipated expiration: 2032-10-22

Abstract

The utility model discloses a pressure steam type tail gas sterilizer, which belongs to the technical field of sterilization and comprises a steam generator, a tail gas pipe, an air pump, a sterilization chamber, a heat exchange chamber, a water pump and a water replenishing tank; the steam generator is connected with the sterilization chamber through a steam pipeline, the tail gas pipe is connected with the air pump, and the air pump is connected with the sterilization chamber through an air pipeline; an electric heating pipe, a temperature sensor and a pressure sensor are arranged in the sterilizing chamber; a heat exchange coil is arranged in the heat exchange chamber, one end of the heat exchange coil is connected with the sterilization chamber through an exhaust pipeline, and the other end of the heat exchange coil is connected with a discharge pipe; the water replenishing tank, the water pump and the heat exchange chamber are connected into a circulation loop through water conveying pipelines, the discharge end of the water pump is also connected with a water replenishing pipeline, and the water replenishing pipeline is connected with the steam generator; check valves are installed on the steam pipeline and the gas transmission pipeline, and stop valves are installed on the steam pipeline and the gas exhaust pipeline. The utility model discloses can improve the tail gas treatment capacity under the condition that does not reduce the treatment effeciency.

Description

Pressure steam type tail gas sterilizer

Technical Field

The utility model relates to the field of medical equipment, in particular to pressure steam type tail gas sterilizer.

Background

The tail gas and waste gas generated in the medical process may carry germs, so that the tail gas and waste gas cannot be directly discharged into the air, and the tail gas and waste gas need to be sterilized, usually by high temperature sterilization.

The pressure steam sterilizer is sterilization and disinfection equipment commonly applied to the field of biological medicine, generates steam through a steam generator, and then introduces the steam and tail gas into a sterilization chamber to increase the temperature in the sterilization chamber, so that the heat carried by the steam is utilized to kill germs carried in the tail gas, and the purpose of sterilizing the tail gas is realized.

However, when the amount of exhaust gas is large, more high-temperature steam needs to be introduced into the sterilization chamber, so that the exhaust gas is sufficiently heated, and further germs are killed. However, due to the limitation of the pressure-resistant grade of the sterilization chamber, high-temperature steam cannot be introduced endlessly, which causes the valve to be forcibly opened due to the overhigh pressure in the sterilization chamber, so that germs in the exhaust gas are discharged without being completely treated, thereby causing air pollution.

In addition, when the mixed gas of the tail gas and the steam with higher temperature is directly discharged from the sterilization chamber, the problem of energy waste exists, scalding accidents are easily caused at the discharge port, and water resources are wasted.

SUMMERY OF THE UTILITY MODEL

To the steam sterilizer that prior art exists and easily appear the not thorough problem of disinfecting when carrying out sterilization treatment to tail gas, the utility model aims to provide a pressure steam type tail gas sterilizer.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a pressure steam type tail gas sterilizer comprises a steam generator, a tail gas pipe, an air pump, a sterilization chamber, a heat exchange chamber, a water pump and a water replenishing tank; the steam generator comprises a water inlet and a steam outlet, the steam outlet is connected with an air inlet of the sterilization chamber through a steam pipeline, the tail gas pipe is connected with a suction end of the air pump, and a discharge end of the air pump is connected with the air inlet of the sterilization chamber through an air conveying pipeline; an electric heating pipe is arranged in the sterilization chamber, and a temperature sensor and a pressure sensor are arranged on the side wall of the sterilization chamber; a heat exchange coil is arranged in the heat exchange chamber, one end of the heat exchange coil, which extends out of the heat exchange chamber, is connected with an exhaust port of the sterilization chamber through an exhaust pipeline, and the other end of the heat exchange coil, which extends out of the heat exchange chamber, is connected with a discharge pipe; the water replenishing tank, the water pump and the heat exchange chamber are connected into a circulation loop through water conveying pipelines, the water conveying pipeline connected with the discharge end of the water pump is also connected with a water replenishing pipeline, and the water replenishing pipeline is connected with a water inlet of the steam generator; the steam pipeline with all install the check valve on the gas transmission pipeline, the steam pipeline with all install the stop valve on the exhaust pipeline.

Furthermore, the device also comprises a moving platform, and the steam generator, the air pump, the sterilization chamber, the heat exchange chamber, the water pump and the water replenishing tank are all arranged on the moving platform.

Preferably, a condenser is arranged on the discharge pipe, and a discharge port of the condenser is connected with the water replenishing tank through a return pipe.

Preferably, the sterilization chamber is the cylinder tube-shape, the sterilization chamber includes that the open barrel of top surface is connected with dismantling the cover at the top of barrel, electric heating pipe is the heliciform and installs coaxially on the inner wall of cover.

Preferably, the bottom wall of the barrel is fixedly connected with a sewage discharge pipe for discharging sewage, and a stop valve is installed on the sewage discharge pipe.

Adopt above-mentioned technical scheme, the beneficial effects of the utility model reside in that: because the setting of the electric heating pipe in the sterilizing chamber, the temperature sensor and the pressure sensor, make when the pressure in the sterilizing chamber reaches the upper limit value, and the temperature has not yet reached the setting value, can heat the mixed gas of tail gas and steam in the sterilizing chamber through the electric heating pipe, until the temperature obtains the setting value, heat the tail gas through the mode of direct heating, it is for the mode that heats the tail gas through steam alone, can make the sterilizing chamber once can handle more a large amount of tail gas, and have the high efficiency of steam heating simultaneously, make the sterilization treatment of tail gas both have the advantage of a large amount of processings, also have high efficiency's characteristics.

Drawings

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

In the figure, 1-a steam generator, 2-a sterilization chamber, 21-a cylinder body, 22-a cylinder cover, 23-a blow-off pipe, 24-a temperature sensor, 25-a pressure sensor, 26-a tee joint, 3-a steam pipeline, 4-a tail gas pipe, 5-an air pump, 6-a gas pipeline, 7-an electric heating pipe, 8-a heat exchange chamber, 9-a heat exchange coil, 10-a gas pipeline, 11-a discharge pipe, 12-a water replenishing tank, 13-a water pump, 14-a water pipeline, 15-a water replenishing pipeline, 16-a one-way valve, 17-a stop valve, 18-a condenser and 20-a three-way valve.

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.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "back", etc. indicate the orientation or position relationship of the structure of the present invention based on the drawings, and are only for the convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the technical scheme, the terms "first" and "second" are only used for referring to the same or similar structures or corresponding structures with similar functions, and are not used for ranking the importance of the structures, or comparing the sizes or other meanings.

In addition, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two structures can be directly connected or indirectly connected through an intermediate medium, and the two structures can be communicated with each other. To those skilled in the art, the specific meanings of the above terms in the present invention can be understood in relation to the present scheme in specific terms according to the general idea of the present invention.

Example one

A pressure steam type tail gas sterilizer is shown in figure 1 and comprises a steam generator 1, a sterilization chamber 2, a tail gas pipe 4, an air pump 5, a heat exchange chamber 8, a water replenishing tank 12 and a water pump 13.

Wherein, steam generator 1 adopts commercial electric heating steam generator, and it is including the water inlet that is used for the moisturizing and the steam outlet that is used for outside discharge high temperature high pressure steam to all weld the branch pipe that one end has the flange. The sterilizing chamber 2 is configured into a cylindrical tubular structure, is vertically installed when in use, consists of two layers of structures, namely an inner wall made of metal materials and an outer wall made of heat-insulating materials, and specifically comprises a cylinder body 21 with an open top surface and a cylinder cover 22 connected to the top of the cylinder body 21 through a plurality of bolts. An air inlet and an air outlet are formed in the circumferential side wall of the cylinder body 21, and branch pipes with flanges at one ends are welded on the side wall. The steam outlet of the steam generator 1 is connected with the air inlet of the sterilization chamber 2 through the steam pipeline 3, the steam pipeline 3 is provided with a one-way valve 16 and a stop valve 17, so that the steam can only flow from the steam generator 1 to the sterilization chamber 2 in a one-way mode, and the stop valve 17 is used for controlling the on-off state of the steam to prevent the steam from flowing to the sterilization chamber 2 endlessly. In addition, a sewage discharge pipe 23 for discharging sewage is welded on the bottom wall of the cylinder 21, and the stop valve 17 is installed on the sewage discharge pipe 23, so that the sewage can be conveniently discharged when the sterilizing chamber 2 is cleaned.

The tail gas pipe 4 is used for conveying tail gas, one end of the tail gas pipe is connected with tail gas discharge ports of other equipment, the other end of the tail gas pipe is connected with the suction end of the air pump 5 through a flexible joint, and the discharge end of the air pump 5 is also connected with the air inlet of the sterilization chamber 2 through an air conveying pipeline 6. Specifically, a three-way pipe 26 is first connected to the air inlet of the sterilization chamber 2, so that the air pipe 6 and the steam pipe 3 are connected to two ports of the three-way pipe 26, respectively. The gas transmission pipeline 6 is provided with a one-way valve 16, and the one-way valve 16 enables the tail gas to flow from the tail gas pipe 4 to the sterilization chamber 2 in one way only.

An electric heating tube 7 is also arranged in the sterilization chamber 2, and the electric heating tube 7 is configured in a spiral shape and is coaxially mounted on the inner bottom wall of the cylinder cover 22. Meanwhile, a temperature sensor 24 for detecting the internal temperature of the sterilization chamber 2 and a pressure sensor 25 for detecting the internal pressure of the sterilization chamber 2 are mounted on the circumferential side wall of the cylinder 21 of the sterilization chamber 2.

In this embodiment, heat transfer chamber 8 configures to shell-like structure, the two-layer structure of outer wall that inner wall and insulation material that also includes metal material and make constitutes, heat transfer chamber 8's top also is provided with the detachable lid, and heat transfer chamber 8's inside then fixed mounting has heat transfer coil pipe 9, heat transfer coil pipe 9 has two ports, two ports are worn out in having seted up the perforation respectively from heat transfer chamber 8 lateral wall, and all welded has the flange, so set up, make this heat transfer coil pipe 9 stretch out one of them port of heat transfer chamber 8 be connected with the gas vent of sterilization room 2 through exhaust pipe 10, heat transfer coil pipe 9 stretches out heat transfer chamber 8's the other end then is used for connecting exhaust pipe 11. Further, a shutoff valve 17 is attached to the exhaust line 10, and the shutoff valve 17 is opened after the sterilization process is completed to discharge the mixed gas of the exhaust gas and the steam after the sterilization process from the sterilization chamber 2.

The makeup tank 12 is configured in a closed shell-like configuration, and also includes a two-layer structure including an inner wall made of a metal material and an outer wall made of a heat insulating material. Wherein, the lateral wall of the water replenishing tank 12 is provided with a water filling port, a water outlet and a water inlet, the lateral wall of the heat exchange chamber 8 is also provided with a water outlet and a water inlet, branch pipes are welded, and the free ends of the branch pipes are welded with flanges. Meanwhile, the water outlet of the water replenishing tank 12 and the suction end of the water pump 13, the discharge end of the water pump 13 and the water inlet of the heat exchange chamber 8, and the water inlet of the water replenishing tank 12 and the water outlet of the heat exchange chamber 8 are connected through a water conveying pipeline 14, so that the water replenishing tank 12, the water pump 13 and the heat exchange chamber 8 form a circulation loop. Meanwhile, a three-way valve 20 is connected in series on the water conveying pipeline 14 connected between the discharge end of the water pump 13 and the heat exchange chamber 8, the three-way valve 20 has an inlet end and two outlet ends, the inlet end and the outlet end are connected in series in the water conveying pipeline 14, the other outlet end is connected with a water replenishing pipeline 15, and the water replenishing pipeline 15 is connected with the water inlet of the steam generator 1.

It will be appreciated that in order to save water waste, a condenser 18 is also mounted on the discharge pipe 11, the condenser 18 being adapted to condense water contained in the exhaust gases discharged therethrough, the discharge opening thereof also being connected to the make-up water tank 12 via a return pipe.

The utility model discloses a theory of operation does: when the tail gas needs to be sterilized, firstly, the steam generator 1 is started to generate steam with certain temperature and pressure; then the tail gas is pumped into the sterilization chamber 2 by an air pump 5 through a tail gas pipe 4; then the stop valve 17 on the steam pipeline 3 is opened to input the high-temperature and high-pressure steam into the sterilization chamber 2, and the heat carried by the steam is transferred to the tail gas in the sterilization chamber 2 to increase the temperature of the tail gas; it is determined whether the temperature of the exhaust gas is heated to a set value sufficient to kill germs and whether the pressure in the sterilizing chamber 2 reaches an upper limit value (lower than the valve opening pressure of the cutoff valve 17) by the display values of the temperature sensor 24 and the pressure sensor 25; it can be understood that when the temperature and the pressure in the sterilization chamber 2 are respectively lower than the set value and the upper limit value, the high-temperature and high-pressure steam can be continuously introduced into the sterilization chamber 2; when the pressure in the sterilization chamber 2 reaches the upper limit value and the temperature does not reach the set value, a large amount of steam cannot be continuously introduced into the sterilization chamber 2, the stop valve 17 on the steam pipeline 3 is closed, the electric heating pipe 7 is opened, the mixed gas of the tail gas and the steam in the sterilization chamber 2 is heated through the electric heating pipe 7 until the temperature reaches the set value, the tail gas is heated through a direct heating mode, compared with the mode of simply heating the tail gas through the steam, the method can enable the sterilization chamber 2 to process a large amount of tail gas at one time, and has the high efficiency of steam heating, so that the sterilization treatment of the tail gas has the advantages of large-scale treatment and also has the characteristic of high-efficiency treatment; after sterilization is finished, the electric heating pipe 7 is closed, the stop valve 17 on the exhaust pipeline 10 is opened, and the mixed gas enters the heat exchange coil 9, so that the heat carried by the mixed gas is transferred to the water in the heat exchange chamber 8; after the water pump 13 is started, the heat can be continuously transferred into the water replenishing tank 12; the waste gas after heat exchange enters a condenser 18, the moisture in the waste gas is condensed and then recycled in the water replenishing tank 12, and the condensed waste gas is discharged into the air through a discharge pipe 11; when water needs to be added to the steam generator 1, the water pump 13 can add preheated water to the steam generator 1 through the water adding pipe 15 by operating the three-way valve.

Example two

In this embodiment, the steam sterilization device further comprises a moving platform, the moving platform comprises a bottom plate and a plurality of rollers installed on one side of the bottom surface of the bottom plate, and one side of the top surface of the bottom plate is used for installing the steam generator 1, the air pump 5, the sterilization chamber 2, the heat exchange chamber 8, the water pump 13 and the water replenishing tank 12.

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 these embodiments are still within the scope of the invention.

Claims

1. A pressure steam type tail gas sterilizer is characterized in that: comprises a steam generator, a tail gas pipe, an air pump, a sterilization chamber, a heat exchange chamber, a water pump and a water replenishing tank; the steam generator comprises a water inlet and a steam outlet, the steam outlet is connected with an air inlet of the sterilization chamber through a steam pipeline, the tail gas pipe is connected with a suction end of the air pump, and a discharge end of the air pump is connected with the air inlet of the sterilization chamber through an air conveying pipeline; an electric heating pipe is installed in the sterilization chamber, and a temperature sensor and a pressure sensor are installed on the side wall of the sterilization chamber; a heat exchange coil is arranged in the heat exchange chamber, one end of the heat exchange coil, which extends out of the heat exchange chamber, is connected with an exhaust port of the sterilization chamber through an exhaust pipeline, and the other end of the heat exchange coil, which extends out of the heat exchange chamber, is connected with an exhaust pipe; the water replenishing tank, the water pump and the heat exchange chamber are connected into a circulation loop through water conveying pipelines, the water conveying pipeline connected with the discharge end of the water pump is also connected with a water replenishing pipeline, and the water replenishing pipeline is connected with a water inlet of the steam generator; the steam pipeline with all install the check valve on the gas transmission pipeline, the steam pipeline with all install the stop valve on the exhaust pipeline.

2. The pressure steam type exhaust sterilizer of claim 1, wherein: the steam generator, the air pump, the sterilization chamber, the heat exchange chamber, the water pump and the water replenishing tank are all installed on the moving platform.

3. The pressure steam type exhaust sterilizer of claim 1, wherein: the discharge pipe is provided with a condenser, and a discharge port of the condenser is connected with the water replenishing tank through a return pipe.

4. The pressure steam type exhaust sterilizer of claim 1, wherein: the sterilizing chamber is the cylinder tube-shape, the sterilizing chamber includes that the open barrel of top surface is connected with dismantling the cover at the top of barrel, electric heating pipe is the heliciform and installs coaxially on the inner wall of cover.

5. The pressure steam type exhaust sterilizer of claim 4, wherein: the bottom wall of the barrel is fixedly connected with a sewage discharge pipe for discharging sewage, and a stop valve is installed on the sewage discharge pipe.