CN201814878U - Steam intake and exhaust device of sterilizer - Google Patents

Abstract

A steam inlet and exhaust device for a sterilizer, comprising a sterilizing inner chamber, characterized in that it also includes a heat exchanger, a vacuum pump and a sterilizing filter, the bottom of the sterilizing inner chamber is provided with a steam inlet, and the top is provided with an exhaust port The steam inlet is connected to the steam inlet pipe, and the steam inlet is connected to the inlet of the heat exchanger and the vacuum pump in turn through the pipeline. The outlet of the vacuum pump is connected to the drain pipe, and the steam exhaust port is connected to the sterilization filter through the pipeline and then connected into the pipeline between the heat exchanger and the steam inlet. The steam inlet and exhaust device of the sterilizer is equipped with a steam baffle, which forces the steam to disperse after entering the sterilization inner chamber, and is evenly distributed in the horizontal plane of the entire sterilization inner chamber to avoid blind spots. When the bacteria chamber heats the sterilized items, the condensed water is first encountered and heated, so that the condensed water is always in a sterilized state. When exhausting steam, the exhaust gas is discharged through the sterilizing filter to avoid pollution. Improve work efficiency and reduce processing costs.

Description

Sterilizer inlet steam exhaust device

technical field

The utility model relates to a steam inlet and exhaust device for a sterilizer, in particular to a steam inlet and exhaust device for various damp heat purification sterilizers, belonging to the field of pharmaceutical machinery.

Background technique

All kinds of current pulsating vacuum sterilizers use steam intake and exhaust from the upper part and steam exhaust from the lower part. This method can meet the requirements for a general sterilized item, but for some more harmful items, especially in the biopharmaceutical industry, some polluted items generated during the production process, the emissions generated during the sterilization process Items that cannot be sterilized simultaneously must be collected and processed separately. The efficiency of this secondary collection is low, the working cycle is prolonged, and the processing cost is increased.

Utility model content

According to the deficiencies in the prior art above, the technical problem to be solved by the utility model is: to provide a steam inlet and exhaust device for the sterilizer which solves the above defects, improves the work efficiency and reduces the processing cost.

The technical solution adopted by the utility model to solve the technical problem is: a steam inlet and exhaust device for a sterilizer, which includes a sterilization inner chamber, and is characterized in that it also includes a heat exchanger, a vacuum pump and a sterilization filter, and the sterilization There is a steam inlet at the bottom of the inner chamber, and a steam exhaust at the top. The steam inlet is connected to a steam inlet pipe. The steam inlet is also connected to the inlet of the heat exchanger and the vacuum pump through the pipeline, and the outlet of the vacuum pump is connected to a drain pipe. , the exhaust port is connected to the sterilizing filter through the pipeline and then connected to the pipeline between the heat exchanger and the steam inlet.

The steam inlet is located at the center of the bottom of the sterilizing inner chamber, and the steam exhaust is located at the center of the top of the sterilizing inner chamber.

A steam baffle is arranged above the steam inlet.

The steam inlet pipe is provided with a first valve, and the pipe between the heat exchanger and the steam inlet is provided with a second valve.

The heat exchanger is connected with a cooling water inlet pipe and a cooling water outlet pipe, and the cooling water inlet pipe is provided with a third valve.

An evacuation valve is provided on the pipeline between the sterilizing filter and the heat exchanger, and a small exhaust valve and a manual regulating valve are arranged in parallel at the evacuation valve.

The outside of the sterilizing filter is covered with an electric heating jacket.

Emissions from the sterilization process include off-gases and condensate, both of which carry high levels of untreated virus. Exhaust gas refers to the air in the sterilization inner chamber after the sterilized items are loaded, and this part of the gas needs to be discharged out of the sterilization inner chamber before the sterilization starts, so as not to affect the penetrability of the steam and affect the sterilization effect; waste water refers to the sterilization During the sterilization process, after the steam enters the sterilization inner chamber, it encounters the inner wall of the main body and the sterilized items, and the moisture generated after condensation. These discharges must be sterilized before they can be discharged.

The steam baffle set above the steam inlet forces the steam to enter the sterilization inner chamber and spread out, evenly distributed in the entire horizontal plane of the sterilization inner chamber to avoid blind spots, and then the steam occupies the entire sterilization inner chamber from bottom to top.

When steam enters, the steam enters the sterilization inner chamber through the first valve and the steam inlet located at the bottom of the sterilization inner chamber, so that when the steam enters the sterilization inner chamber to heat the sterilized items, the first thing it encounters is condensed water instead of Heat it so that the condensate is always sterile.

When exhausting steam, the exhaust steam pipeline is divided into two routes, which are the exhaust steam before the end of sterilization and the exhaust steam after the end of sterilization. The exhaust steam after sterilization can also be called drainage, because the sterilization process has ended, the condensed water and steam in the sterilization inner chamber can be discharged directly, and under the force of the vacuum pump, they will pass through the second valve, heat exchange, etc. The device enters the vacuum pump and exits. Exhaust steam before the end of sterilization is more complicated. Since the sterilization is not completed, the exhaust gas cannot be discharged directly. It must be discharged after sterilization and filtration, and then enter the vacuum pump through the sterilization filter, evacuation valve or small exhaust valve, and heat exchanger in turn. discharge. Among them, the evacuation valve is used for steam exhaust in the pulsation stage, and the small exhaust valve is used for exhaust steam in the sterilization stage with a manual adjustment valve. During the steam exhaust process, when the steam encounters the filter element of the sterilizing filter, some condensed water will inevitably be produced, which will affect the speed of exhaust steam. Therefore, an electric heating jacket is added to the outer surface of the sterilizing filter to heat the filter element and minimize the generation of condensed water.

The beneficial effects of the utility model are: the steam inlet and exhaust device of the sterilizer is equipped with a steam shield, forcing the steam to disperse after entering the sterilizing inner chamber, and evenly distribute it in the horizontal plane of the entire sterilizing inner chamber, avoiding blind spots , and then the steam occupies the entire sterilization inner chamber from bottom to top. When entering the steam, the steam enters the sterilization inner chamber through the first valve and the steam inlet located at the bottom of the sterilization inner chamber, which can make the steam enter the sterilization inner chamber When heating sterilized items, the condensed water is first encountered and heated, so that the condensed water is always in a sterilized state. When exhausting steam, the exhaust gas is discharged through the sterilizing filter, which avoids pollution and improves Work efficiency, reduce processing costs.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1. Sterilization inner chamber; 2. Heat exchanger; 3. Vacuum pump; 4. Sterilization filter; 5. Steam inlet; 6. Steam exhaust; 7. Steam inlet pipe; 8. Drainage pipe; 9. Steam baffle; 10. First valve; 11. Second valve; 12. Cooling water inlet pipe; 13. Cooling water outlet pipe; 14. Third valve; 15. Evacuation valve; 16. Small exhaust valve; 17. Manual regulating valve, 18. Electric heating jacket.

Detailed ways

Embodiments of the utility model are further described below in conjunction with the accompanying drawings:

As shown in Figure 1, there is a steam inlet 5 at the bottom of the sterilization inner chamber 1, and a steam exhaust port 6 at the top. The inlet of the heater 2 and the vacuum pump 3, and the outlet of the vacuum pump 3 are connected with a drain pipe 8, and the exhaust port 6 is connected to the sterilizing filter 4 through the pipeline and then connected to the pipeline between the heat exchanger 2 and the steam inlet 5 The steam inlet 5 is located at the center of the bottom of the sterilizing inner chamber 1, and the steam outlet 6 is located at the center of the top of the sterilizing inner chamber 1; the steam inlet 5 is provided with a steam baffle 9; the steam inlet pipe 7 is provided with a first Valve 10, a second valve 11 is provided on the pipeline between heat exchanger 2 and steam inlet 5; cooling water inlet pipe 12 and cooling water outlet pipe 13 are connected on heat exchanger 2, and cooling water inlet pipe 12 is provided with There is a third valve 14; an evacuation valve 15 is arranged on the pipeline between the sterilizing filter 4 and the heat exchanger 2, and a small exhaust valve 16 and a manual regulating valve 17 are arranged in parallel at the evacuating valve 15, and the sterilizing filter 4 An electric heating jacket 18 is sheathed on the outside.

The steam baffle plate 9 set above the steam inlet 5 forces the steam to enter the sterilization inner chamber 1 and spread out, evenly distributed in the horizontal plane of the entire sterilization inner chamber 1, to avoid blind spots, and then the steam occupies the entire sterilization chamber from bottom to top. Inner room 1.

When steam enters, the steam enters the sterilization inner chamber 1 through the first valve 11 and the steam inlet 5 located at the bottom of the sterilization inner chamber 1, so that when the steam enters the sterilization inner chamber 1 to heat the sterilized articles, it first encounters The condensed water is heated so that the condensed water is always in a sterile state.

When exhausting steam, the exhaust steam pipeline is divided into two routes, which are the exhaust steam before the end of sterilization and the exhaust steam after the end of sterilization. The exhaust steam after sterilization can also be called drainage, because the sterilization process has ended, the condensed water and steam in the sterilization inner chamber 1 can be discharged directly, and under the force of the vacuum pump 3, they will pass through the second valve 11 in turn. , The heat exchanger 2 enters the vacuum pump 3 and discharges. The exhaust gas before the sterilization is completed is more complicated. Since the sterilization is not completed, the exhaust gas cannot be discharged directly. It must be discharged after sterilization and filtration, and then pass through the sterilization filter 4, the evacuation valve 15 or the small exhaust valve 16, and the heat exchanger. 2 into the vacuum pump 3 and out. Among them, the evacuation valve 15 is used for steam exhaust in the pulsation stage, and the small exhaust valve 16 cooperates with the manual regulating valve 17 for steam exhaust in the sterilization stage. During the steam exhaust process, when the steam encounters the filter element of the sterilizing filter 4, some condensed water will inevitably be generated, which will affect the steam exhaust speed. Therefore, an electric heating jacket 18 is added to the outer surface of the bacteria-removing filter 4 to heat the filter core and reduce the generation of condensed water as much as possible.

Claims (7)

1. steriliser admission steam exhaust device, comprise sterilization inner room (1), it is characterized in that: also comprise heat exchanger (2), vacuum pump (3) and sterilizing filter (4), sterilization inner room (1) bottom has air intake (5), the top has steam drain (6), air intake (5) locates to be connected with steam inlet tube (7), air intake (5) also connects the import of heat exchanger (2) and vacuum pump (3) successively by pipeline, the outlet of vacuum pump (3) is connected with drain pipe (8), and steam drain (6) is by in the pipeline between pipeline connection sterilizing filter (4) back access heat exchanger (2) and the air intake (5).

2. steriliser admission steam exhaust device according to claim 1 is characterized in that: described air intake (5) is positioned at sterilization inner room (1) bottom center position, and steam drain (6) is positioned at sterilization inner room (1) center of top position.

3. steriliser admission steam exhaust device according to claim 1 is characterized in that: described air intake (5) top is provided with steam baffle (9).

4. steriliser admission steam exhaust device according to claim 1 is characterized in that: described steam inlet tube (7) is provided with first valve (10), and the pipeline between heat exchanger (2) and the air intake (5) is provided with second valve (11).

5. steriliser admission steam exhaust device according to claim 1 is characterized in that: be connected with cooling water inlet pipe (12) and cooling water outlet tube (13) on the described heat exchanger (2), cooling water inlet pipe (12) is provided with the 3rd valve (14).

6. steriliser admission steam exhaust device according to claim 1, it is characterized in that: the pipeline between described sterilizing filter (4) and the heat exchanger (2) is provided with evacuation valve (15), and evacuation valve (15) locates to be arranged in parallel little air bleeding valve (16) and manual modulation valve (17).

7. steriliser admission steam exhaust device according to claim 1 is characterized in that: described sterilizing filter (4) outside is with electrical heating cover (18).

Images