Pulsation vacuum pressure steam sterilizer

Abstract

The utility model discloses a pulsating vacuum pressure steam sterilizer which comprises a cabinet body, and a sterilizing chamber is arranged on the inner wall of the cabinet body. According to the pulsating vacuum pressure steam sterilizer, through the arrangement of the cabinet body, the sterilization chamber, the cavity, the steam inlet pipe, the slope and the first electromagnetic valve, when the pulsating vacuum pressure steam sterilizer is specifically used, preheated steam is firstly discharged into the cavity of the cabinet body through the steam inlet pipe to preheat the sterilization chamber, and at the moment, the first electromagnetic valve is in a closed state; preheated steam enters the cavity and then is in contact with the inner wall of the cavity, water drops are generated due to temperature difference, the water drops flow into the groove through the slope to support the floating ball, at the moment, the generated water drops can be discharged through the water leakage groove, the sterilization chamber is preheated through the preheated steam, the first electromagnetic valve is opened after preheating, and the steam enters the sterilization chamber through the input pipe; the defect that the steam sterilization effect is reduced due to the fact that the steam is condensed into water and is adhered to an appliance needing to be sterilized due to the temperature difference between the steam and the sterilization chamber when the steam enters the sterilization chamber can be overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a pulsating vacuum pressure steam sterilizer. Background Art

[0002] The pulsating vacuum pressure steam sterilizer is a medical device that sterilizes high-temperature and moisture-resistant items by repeatedly and alternately drawing vacuum and filling the sterilization chamber with steam (filling the sterilization chamber with saturated steam after reaching a certain vacuum degree) to finally reach the set pressure and temperature. It is used for moist heat sterilization of medical instruments and surgical instruments and for drying after sterilization. According to the volume, it can be divided into large pulsating vacuum sterilizers and small pulsating vacuum sterilizers.

[0003] During the use of the pulsating vacuum pressure steam sterilizer of the prior art, steam is transported for steam sterilization after the vacuum operation is performed. However, after the steam enters, it comes into contact with the inner chamber. Due to the temperature difference, the steam condenses into water droplets when it is cold. At this time, the water droplets adhere to the instruments to be sterilized, which may make it difficult for the steam to contact the parts where the water droplets are attached to the instruments, thereby reducing the sterilization effect. Moreover, after steam sterilization, if the steam is directly discharged to the outside, the ambient temperature may increase, affecting the working environment of the staff and reducing work efficiency. Therefore, it is necessary to design a pulsating vacuum pressure steam sterilizer. Utility Model Content

[0004] The main purpose of the utility model is to provide a pulsating vacuum pressure steam sterilizer, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A pulsating vacuum pressure steam sterilizer comprises a cabinet, a sterilization chamber is formed on the inner wall of the cabinet, a cavity is formed on the inner wall of the cabinet, a steam inlet pipe is fixedly connected to one side of the outer surface of the cabinet, one end of the steam inlet pipe is communicated with the cavity, a slope is provided on the inner bottom wall of the cavity, a groove is formed on the inner bottom wall of the cavity, a water leakage groove is formed on the inner bottom wall of the groove; a float is provided on the inner bottom wall of the groove, an input pipe is fixedly connected to the inner top wall of the sterilization chamber, one end of the input pipe is communicated with the cavity, and a first solenoid valve is provided on one side of the outer surface of the input pipe.

[0007] In order to facilitate the placement of sterilizing instruments, as a pulsating vacuum pressure steam sterilizer of the utility model, the inner wall of the sterilization chamber is fixedly connected with a support plate, and the lower surface of the cabinet is fixedly connected with a support leg.

[0008] In order to facilitate observation of the water level, as a pulsating vacuum pressure steam sterilizer of the utility model, a cold water tank is fixedly connected to one side of the cabinet, and an observation window is provided on one side of the outer surface of the cold water tank.

[0009] In order to evacuate the sterilization chamber, as a pulsating vacuum pressure steam sterilizer of the utility model, a vacuum pump is installed on the upper surface of the cabinet, the input end of the vacuum pump is fixedly connected to a suction tube, and the output end of the vacuum pump is fixedly connected to a shunt pipe.

[0010] In order to discharge the steam into the cold water tank for cooling, as a pulsating vacuum pressure steam sterilizer of the utility model, one end of the shunt pipe penetrates the upper surface of the cold water tank and is connected to the cold water tank.

[0011] In order to control the shunt pipe, as a pulsating vacuum pressure steam sterilizer of the utility model, a second solenoid valve and a third solenoid valve are arranged on one side of the outer surface of the shunt pipe.

[0012] In order to allow the steam after cooling to be discharged, as a pulsating vacuum pressure steam sterilizer of the utility model, an exhaust window is arranged on the upper surface of the cold water tank.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, through the arrangement of the cabinet, the sterilization chamber, the chamber, the steam inlet pipe, the slope and the first solenoid valve, when in use, the preheated steam is first discharged into the chamber of the cabinet through the steam inlet pipe to preheat the sterilization chamber. At this time, the first solenoid valve is in a closed state. After the preheated steam enters the chamber, it contacts with the inner wall of the chamber and generates water droplets due to the temperature difference. The water droplets flow into the groove through the slope and lift the float. The water droplets generated at this time can be discharged through the water leakage groove, and the sterilization chamber is preheated by the preheated steam. After preheating, the first solenoid valve is opened and the steam enters the sterilization chamber through the input pipe, which can prevent the steam from condensing into water when it enters the sterilization chamber due to the temperature difference with the sterilization chamber and adhering to the instrument to be sterilized, thereby reducing the steam sterilization effect.

[0015] 2. In the utility model, through the arrangement of the vacuum pump, the shunt pipe, the suction pipe, the second solenoid valve, the third solenoid valve and the exhaust window, during specific use, when the third solenoid valve and the first solenoid valve are closed, the vacuum pump is started to evacuate the sterilization chamber through the suction pipe, and the extracted gas is discharged through the other end of the shunt pipe. After the equipment in the sterilization chamber is steam sterilized, the first solenoid valve and the second solenoid valve are closed, and the third solenoid valve is opened. The vacuum pump sucks the steam in the sterilization chamber through the suction pipe and discharges it into the cold water tank through the other end of the shunt pipe so that the hot steam contacts the cold water for cooling, and the gas is then discharged through the exhaust window to prevent the direct discharge of steam from causing the temperature of the surrounding working environment to increase, thereby causing inconvenience to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the chamber structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the float structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the pipe extraction structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the shunt pipe structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the exhaust window structure of the utility model.

[0022] In the figure: 1. cabinet; 2. sterilization chamber; 3. chamber; 4. steam inlet pipe; 5. slope; 6. groove; 7. leakage groove; 8. float; 9. input pipe; 10. first solenoid valve; 11. support plate; 12. support leg; 13. cold water tank; 14. observation window; 15. vacuum pump; 16. suction pipe; 17. shunt pipe; 18. second solenoid valve; 19. third solenoid valve; 20. exhaust window. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-6As shown, a pulsating vacuum pressure steam sterilizer comprises a cabinet 1, a sterilization chamber 2 is formed on the inner wall of the cabinet 1, a chamber 3 is formed on the inner wall of the cabinet 1, a steam inlet pipe 4 is fixedly connected to one side of the outer surface of the cabinet 1, one end of the steam inlet pipe 4 is in communication with the chamber 3, a slope 5 is provided on the inner bottom wall of the chamber 3, a groove 6 is formed on the inner bottom wall of the chamber 3, and a water leakage groove 7 is formed on the inner bottom wall of the groove 6;

[0025] In this embodiment, a float 8 is provided on the inner bottom wall of the groove 6, an input pipe 9 is fixedly connected to the inner top wall of the sterilization chamber 2, one end of the input pipe 9 is connected to the chamber 3, and a first solenoid valve 10 is provided on one side of the outer surface of the input pipe 9.

[0026] During specific use, the preheated steam is first discharged into the chamber 3 of the cabinet 1 through the steam inlet pipe 4 to preheat the sterilization chamber 2. At this time, the first solenoid valve 10 is in a closed state. After the preheated steam enters the chamber 3, it contacts the inner wall of the chamber 3 and produces water droplets due to the temperature difference. The water droplets flow through the slope 5 to the groove 6 to lift the float 8. The water droplets produced at this time can be discharged through the drainage groove 7. The sterilization chamber 2 is preheated by the preheated steam. After preheating, the first solenoid valve 10 is opened and the steam enters the sterilization chamber 2 through the input pipe 9. This can prevent the steam from condensing into water when it enters the sterilization chamber 2 due to the temperature difference with the sterilization chamber 2 and adhering to the instruments to be sterilized, thereby reducing the steam sterilization effect.

[0027] In this embodiment, a support plate 11 is fixedly connected to the inner wall of the sterilization chamber 2 , and a support leg 12 is fixedly connected to the lower surface of the cabinet 1 .

[0028] During specific use, the support plate 11 can be used to place the instruments that need to be steam sterilized on the support plate 11 , and the legs 12 can provide support and stability for the cabinet 1 .

[0029] In this embodiment, a cold water tank 13 is fixedly connected to one side of the cabinet 1 , and an observation window 14 is provided on one side of the outer surface of the cold water tank 13 .

[0030] During specific use, the water level in the cold water tank 13 can be conveniently observed through the observation window 14 .

[0031] In this embodiment, a vacuum pump 15 is installed on the upper surface of the cabinet 1 , an input end of the vacuum pump 15 is fixedly connected to a suction pipe 16 , and an output end of the vacuum pump 15 is fixedly connected to a shunt pipe 17 .

[0032] When in use, the vacuum pump 15 can extract air in the sterilization chamber 2 through the suction pipe 16 and then discharge it through the diversion pipe 17 to perform a vacuum operation.

[0033] In this embodiment, one end of the shunt pipe 17 passes through the upper surface of the cold water tank 13 and is in communication with the cold water tank 13 .

[0034] During specific use, when the vacuum pump 15 extracts the hot steam in the sterilization chamber 2, the hot steam can be discharged into the cold water tank 13 through one end of the shunt pipe 17 so that it contacts with cold water for cooling, thereby preventing the disadvantage of the working environment temperature rising due to direct discharge of hot steam.

[0035] In this embodiment, a second solenoid valve 18 and a third solenoid valve 19 are disposed on one side of the outer surface of the shunt pipe 17 .

[0036] During specific use, when the second solenoid valve 18 is closed and the third solenoid valve 19 is opened, the vacuum pump 15 discharges the extracted hot steam into the cold water tank 13 through one end of the shunt pipe 17. When the second solenoid valve 18 is opened and the third solenoid valve 19 is closed, the air extracted by the vacuum pump 15 when performing a vacuum operation on the sterilization chamber 2 can be discharged from the other end of the shunt pipe 17.

[0037] In this embodiment, an exhaust window 20 is provided on the upper surface of the cold water tank 13 .

[0038] When in use, the hot steam is discharged from the cold water tank 13 through one end of the shunt pipe 17 and is cooled by contact with cold water, and then the gas is discharged from the exhaust window 20 .

[0039] Working principle: In use, the preheated steam is first discharged into the chamber 3 of the cabinet 1 through the steam inlet pipe 4 to preheat the sterilization chamber 2. At this time, the first solenoid valve 10 is closed. After the preheated steam enters the chamber 3, it contacts the inner wall of the chamber 3 and produces water droplets due to the temperature difference. The water droplets flow through the slope 5 to the groove 6 to lift the float 8. At this time, the water droplets produced can be discharged through the drain groove 7. The preheated steam is used to preheat the sterilization chamber 2. After preheating, the utensils to be steam sterilized are placed on the support plate 11. When the second solenoid valve 18 is opened and the third solenoid valve 19 is closed, the vacuum pump 15 is in the process of evacuating the sterilization chamber 2. The extracted air can be discharged from the other end of the shunt pipe 17. After the vacuum operation, the second solenoid valve 18 and the third solenoid valve 19 are both in the closed state. The first solenoid valve 10 is opened, and the steam enters the sterilization chamber 2 from the input pipe 9 to steam sterilize the equipment. After steam sterilization, the vacuum pump 15 extracts the hot steam in the sterilization chamber 2. At this time, the second solenoid valve 18 is closed and the third solenoid valve 19 is opened. The hot steam is discharged from the cold water tank 13 through one end of the shunt pipe 17 and contacts with cold water for cooling. The gas is then discharged from the exhaust window 20 to prevent the direct discharge of steam from causing the temperature of the surrounding working environment to increase, thereby causing inconvenience to the staff.

[0040] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A pulsating vacuum pressure steam sterilizer, comprising a cabinet (1), characterized in that: The inner wall of the cabinet (1) is provided with a sterilization chamber (2), the inner wall of the cabinet (1) is provided with a chamber (3), one side of the outer surface of the cabinet (1) is fixedly connected with a steam inlet pipe (4), one end of the steam inlet pipe (4) is in communication with the chamber (3), the inner bottom wall of the chamber (3) is provided with a slope (5), the inner bottom wall of the chamber (3) is provided with a groove (6), and the inner bottom wall of the groove (6) is provided with a water leakage groove (7); A float (8) is provided on the inner bottom wall of the groove (6), an input pipe (9) is fixedly connected to the inner top wall of the sterilization chamber (2), one end of the input pipe (9) is in communication with the chamber (3), and a first solenoid valve (10) is provided on one side of the outer surface of the input pipe (9).

2. A pulsating vacuum pressure steam sterilizer according to claim 1, characterized in that: A support plate (11) is fixedly connected to the inner wall of the sterilization chamber (2), and a support leg (12) is fixedly connected to the lower surface of the cabinet (1).

3. A pulsating vacuum pressure steam sterilizer according to claim 1, characterized in that: A cold water tank (13) is fixedly connected to one side of the cabinet (1), and an observation window (14) is provided on one side of the outer surface of the cold water tank (13).

4. A pulsating vacuum pressure steam sterilizer according to claim 1, characterized in that: A vacuum pump (15) is installed on the upper surface of the cabinet (1); an input end of the vacuum pump (15) is fixedly connected to a suction pipe (16); and an output end of the vacuum pump (15) is fixedly connected to a shunt pipe (17).

5. A pulsating vacuum pressure steam sterilizer according to claim 4, characterized in that: One end of the diverter pipe (17) passes through the upper surface of the cold water tank (13) and is in communication with the cold water tank (13).

6. A pulsating vacuum pressure steam sterilizer according to claim 4, characterized in that: A second solenoid valve (18) and a third solenoid valve (19) are provided on one side of the outer surface of the shunt pipe (17).

7. The pulsating vacuum pressure steam sterilizer according to claim 3, characterized in that: An exhaust window (20) is provided on the upper surface of the cold water tank (13).

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