CN114392365A

CN114392365A - Evaporator for sterilizer

Info

Publication number: CN114392365A
Application number: CN202111659212.7A
Authority: CN
Inventors: 鲁立辉; 沈远业; 郑科杰
Original assignee: Ningbo Haishu Laifu Medical Technology Co ltd
Current assignee: Ningbo Haishu Xiecheng Medical Instrument Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-04-26

Abstract

The invention relates to an evaporation device for a sterilizer, which comprises a shell, wherein a first cavity is arranged on the shell in a penetrating manner along the length direction of the shell, end covers are arranged on two end surfaces of the shell, heating rods are inserted into the end covers and extend into the first cavity, and the shell is provided with a water inlet pipeline, a water return pipeline, a water vapor pipeline, a water level detection mechanism and a pressure valve; pure water is carried to the casing through water intake pipe in, and heat the vapor by the heating rod, water level detection mechanism detects whether water level and pure water boil, it stores in first cavity to produce the vapor after the pure water boils, carry the pot body with it by the vapor pipeline, the water of the internal of pot can flow back to the casing reheating through the return water pipeline, can produce the vapor constantly in the casing and store in first cavity, with the internal sterilization of pot at any time take, with need through fetching water before solving sterilizer sterilization among the prior art, the heating, the process of carrying the vapor, it is long consuming time, the technical problem that the sterilization efficiency is low.

Description

Evaporator for sterilizer

Technical Field

The invention relates to the technical field of sterilizers, in particular to an evaporation device for a sterilizer.

Background

After the medical equipment is used, the medical equipment needs to be put into a sterilizer for sterilization and disinfection, and all bacteria and liquid medicine residues on the equipment are removed. Most of the existing sterilizers sterilize the devices in the pot body through high-temperature and high-pressure steam, then extract condensed water and water vapor in the pot body through an exhaust mechanism, and finally return air to the inside of the pot body in a vacuum state through an air inlet mechanism. In the sterilization process, steam needs to be introduced, and the mode of supplying steam in the sterilization process of the existing sterilizer is that when steam needs to be supplied into the pot body, the sterilizer can pump and adjust water in the water tank to heat, and then the generated steam is introduced into the pot body to be sterilized and disinfected. Therefore, the processes of water pumping, heating and steam delivery are required before sterilization, the whole process consumes longer time, and the sterilization efficiency is greatly reduced.

Disclosure of Invention

In view of the disadvantages of the prior art, an object of the present invention is to provide an evaporation apparatus capable of promptly and efficiently transporting water vapor.

In order to solve the technical problem, the invention provides an evaporation device for a sterilizer, which comprises a shell, wherein a first cavity is arranged on the shell in a penetrating manner along the length direction of the shell, end covers are arranged on two end faces of the shell, a heating rod is inserted on the end covers and extends into the first cavity, the shell is provided with a water inlet pipeline, a water return pipeline, a water vapor pipeline, a water level detection mechanism and a pressure valve, and the water inlet pipeline, the water return pipeline, the water vapor pipeline and the pressure valve are all communicated with the first cavity.

After adopting the structure, the evaporation device for the sterilizer has the following advantages: pure water is carried to the casing in through the water intake pipe, and heat vapor by the heating rod, water level detection mechanism detects the water level condition and whether the pure water boils, the pure water vapor storage after the boiling is in first cavity, and carry the vapor to the pot body by the vapor pipeline, the water of the internal of pot can be through the water return pipeline reflow to the internal reheating of casing, when the internal sterilization of pot, can be constantly vapor and store in first cavity in the casing, in order to take at any time for the internal sterilization of pot, reach the purpose of timely and high-efficient to the pot body transport vapor, the efficiency of sterilization has been improved, and the pressure valve can avoid the casing in the pressure that produces by vapor is too high, guarantee the security of device.

As an improvement, the steam pipeline is arranged at the upper end of the shell, a first bulge and a second bulge are respectively arranged on the inner side walls of two sides of the upper end of the shell, the first bulge is positioned above the second bulge, and the projection of the free end of the first bulge in the vertical direction falls on the second bulge; by adopting the structure, the first bulge and the second bulge which are arranged on the inner side wall of the upper end of the shell can prevent boiling water from entering the water vapor pipeline, and water vapor can still enter the water vapor pipeline from the first cavity along the path between the first bulge and the second bulge, so that the conveying efficiency of the water vapor is improved.

As an improvement, the first bulge and the second bulge are arranged obliquely downwards from the inner side wall of the shell; adopt this kind of structure, vapor assembles at the top in the casing, wherein, does not have the vapor liquefaction water droplet in the very first time entering vapor pipeline, and the first arch and the second arch that set up to the one side down help liquid water to flow back to the casing bottom reheating, also help the liquid water that flows out among the return water pipeline to flow back to the casing bottom reheating equally, have the advantage of water economy.

As an improvement, a fixed block is inserted on the inner side wall of the lower end of the shell, a first through hole is formed in the fixed block, and the heating rod is inserted in the first through hole; by adopting the structure, if the heating rod is directly fixed on the shell, partial surfaces in the heating rod cannot be fully contacted with water, the heating efficiency is easily influenced, and therefore the fixing block for fixing the heating rod is arranged, so that the water to be heated can be fully contacted with the heating rod, and the heating efficiency is improved.

As an improvement, the fixed block is also provided with a second through hole, the end cover is inserted with a temperature sensor, the temperature sensor extends into the first cavity and is inserted into the second through hole, and the fixed block is made of a heat conduction material; by adopting the structure, the temperature sensor is connected with the fixed block, and the fixed block conducts heat, so that the temperature of the heating rod can be measured more accurately.

As an improvement, the water level detection mechanism comprises a conductive floating piece, a probe and a control module, the floating piece is movably arranged in the first cavity, the density of the floating piece is less than the density of water, the probe is arranged on the shell and is positioned on a moving path of the floating piece moving along with the rise of the water surface, and when the floating piece is contacted with the probe, the probe and the floating piece form a complete circuit loop and output signals to the control module; by adopting the structure, because the water used in the evaporation device is pure water, the conventional water level detection mechanism is not applicable, in the invention, when the water level rises, the floating piece is also lifted synchronously, and similarly, when the water boils, the boiling water can jack the floating piece up and contact the probe, and a signal is output to the control module, so that the purposes of detecting the water level height and whether the water boils are achieved, and even under the pure water environment, the structure can still achieve the purpose of detection.

As an improvement, the water level detection mechanism further comprises a first connecting piece and a second connecting piece, the first connecting piece is detachably arranged on one end cover, and the second connecting piece is connected with the floating piece and hinged with the first connecting piece; by adopting the structure, after the floating part is hinged with the first connecting part through the second connecting part, the displacement of the floating part on the horizontal plane is limited, so that the floating part can only rotate when the water level rises, the floating part can be in contact with the probe, the stability of the whole structure is improved, and the installation of the floating part is not convenient because the space in the shell is limited, so that the floating part is installed on the end cover through the first connecting part and the second connecting part to ensure that the installation and the disassembly are all more convenient.

As an improvement, a convex second cavity is arranged on the inner side wall of the shell, the second cavity penetrates through the shell along the length direction of the shell and is positioned above the heating rod, the lower bottom surface of the second cavity is obliquely arranged from the side wall of the shell downwards, and the included angle a between the lower bottom surface of the second cavity and the horizontal plane is 5-10 degrees; by adopting the structure, the space for storing water vapor in the shell is increased by the second cavity, and the liquid water which is condensed is helped to flow back to the bottom end of the shell to be reheated by the lower bottom surface of the second cavity which is obliquely and downwards arranged, so that the water-saving device has the advantage of water conservation.

As an improvement, the lower wall of the shell is provided with a drain hole; with this structure, the drain hole is used to drain the remaining water in the housing.

As an improvement, the shell is made of metal material, and the outer wall of the shell is also provided with a temperature controller; by adopting the structure, the temperature controller can protect the temperature sensor when the temperature is abnormal or the equipment fails, so that the safety performance of the temperature sensor is improved.

Drawings

Fig. 1 is a sectional view of the entirety of the present invention.

Fig. 2 is a schematic perspective view of a connection structure of a water level detection mechanism and an end cover according to the present invention.

Fig. 3 is a schematic perspective view of the housing of the present invention.

Fig. 4 is a schematic cross-sectional view of a housing according to the present invention.

Reference numerals: 1. a housing; 2. a first cavity; 3. an end cap; 4. a heating rod; 5. a water inlet pipeline; 6. a water return pipeline; 7. a water vapor line; 8. a water level detection mechanism; 81. a float member; 82. a probe; 83. a first connecting member; 84. a second connecting member; 85. a pin shaft; 86. a clamp spring; 9. a pressure valve; 10. a first protrusion; 11. a second protrusion; 12. a fixed block; 13. a first through hole; 14. a second through hole; 15. a temperature sensor; 16. a second cavity; 17. a drain hole; 18. a temperature controller; 19. a sealing groove; 20. and (5) sealing rings.

Detailed Description

The evaporation apparatus for a sterilizer of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 4, an evaporation device for a sterilizer comprises a housing 1, wherein a first cavity 2 is arranged on the housing 1 in a penetrating manner along the length direction of the housing 1, end covers 3 are respectively arranged on two end faces of the housing 1, the end covers 3 are connected with the housing 1 through bolts, heating rods 4 are inserted into the end covers 3, the heating rods 4 extend into the first cavity 2, the housing 1 is provided with a water inlet pipeline 5, a water return pipeline 6, a water vapor pipeline 7, a water level detection mechanism 8 and a pressure valve 9, and the water inlet pipeline 5, the water return pipeline 6, the water vapor pipeline 7 and the pressure valve 9 are all communicated with the first cavity 2; the water inlet pipeline 5, the water return pipeline 6, the steam pipeline 7 and the pressure valve 9 are all arranged at the upper end of the shell 1, wherein the water return pipeline 6 and the steam pipeline 7 can be provided with a plurality of pipelines, and the steam pipeline 7 can be used for conveying steam and also can be used for condensate water backflow.

As shown in fig. 4, the inner side walls of the two sides of the upper end of the housing 1 are respectively provided with a first protrusion 10 and a second protrusion 11, the first protrusion 10 is located above the second protrusion 11, and the projection of the free end of the first protrusion 10 in the vertical direction falls on the second protrusion 11; in this embodiment, the first protrusion 10 and the second protrusion 11 are both in the shape of a baffle; due to the arrangement, boiled water is blocked by the first protrusion 10 and the second protrusion 11 and cannot enter the water vapor pipeline 7, and water vapor can still enter the water vapor pipeline 7 along the path between the first protrusion 10 and the second protrusion 11, so that the conveying efficiency of the water vapor is improved; in addition, in order to further improve the delivery efficiency of the water vapor, the cross section of the end of the first cavity 2 close to the water vapor pipeline 7 may be set to be trapezoidal, that is, the cross section of the upper end of the first cavity 2 may be set to be trapezoidal.

As shown in fig. 4, the lower end of the housing 1 stores water and heats, but if the heating rod 4 is directly fixed on the housing 1, part of the surface of the heating rod 4 cannot be in full contact with water, which is likely to affect the heating efficiency, therefore, a fixing block 12 is inserted on the inner side wall of the lower end of the housing 1, a first through hole 13 is formed in the fixing block 12, and the heating rod 4 is inserted in the first through hole 13, so that the water to be heated can be in full contact with the heating rod 4, thereby improving the heating efficiency; the fixing block 12 is also provided with a second through hole 14, the end cover 3 is inserted with a temperature sensor 15, the temperature sensor 15 extends into the first cavity 2 and is inserted into the second through hole 14, and the fixing block 12 is made of a heat conduction material; the fixing block 12 can directly conduct the heat of the heating rod 4 to the temperature sensor 15, so that the temperature sensor 15 can accurately measure the temperature of the heating rod 4.

As shown in fig. 1 and 2, the water level detection mechanism 8 comprises an electrically conductive floating member 81, a probe 82, a control module, a first connecting member 83 and a second connecting member 84, the floating member 81 is movably arranged in the first cavity 2, the density of the floating member 81 is less than the density of water, so that when water is introduced into the housing 1, the floating member 81 can float on the water surface and change position along with the height of the water level, and when the water is boiled, the boiled water can jack up the floating member 81; in this embodiment, the floating member 81 is a hollow metal box formed by splicing an upper box body and a lower box body; the probe 82 is arranged on the shell 1 and is positioned on a moving path of the floating piece 81 moving along with the rising of the water surface, and when the floating piece 81 is contacted with the probe 82, the probe 82 and the floating piece 81 form a complete circuit loop and output signals to the control module; the first connecting piece 83 is detachably arranged on one end cover 3, and the second connecting piece 84 is connected with the floating piece 81 and is hinged with the first connecting piece 83; further, the water level detection mechanism 8 further comprises a pin shaft 85 and a clamp spring 86, the second connecting piece 84 is U-shaped, the first connecting piece 83 is positioned between two side walls of the second connecting piece 84, the pin shaft 85 is inserted into the second connecting piece 84 and the first connecting piece 83, the second connecting piece 84 is hinged to the first connecting piece 83, the first connecting piece 83 is inserted into the end cover 3, and the clamp spring 86 is clamped on the pin shaft 85; by adopting the structure, after the floating part 81 is hinged with the first connecting part 83 through the second connecting part 84, the displacement of the floating part 81 on the horizontal plane is limited, so that the floating part 81 can only rotate when the water level rises, the floating part 81 can be ensured to be contacted with the probe 82, the stability of the whole structure is improved, and the installation of the floating part 81 is inconvenient because the space in the shell 1 is limited, so that the floating part 81 is installed on the end cover 3 through the first connecting part 83 and the second connecting part 84, and the installation and the disassembly are both more convenient.

As shown in fig. 3 and 4, a convex second cavity 16 is formed on the inner side wall of the shell 1, the second cavity 16 penetrates through the shell 1 along the length direction of the shell 1 and is located above the heating rod 4, the second protrusion 11 is located below, and the second cavity 16 is communicated with the first cavity 2; in this embodiment, the inner side walls of the two sides of the shell 1 are both provided with second cavities 16, and the first cavity 2 and the two second cavities 16 form a cross-shaped cavity; when the water boils, vapor assembles top in casing 1, wherein, the vapor liquefaction that does not have the very first time to get into in vapor pipeline 7 drops, consequently, in order to make liquid water can flow back to casing 1 bottom reheating high-efficiently, first arch 10 and second arch 11 all are the slant from casing 1 inside wall and set up down, the bottom surface also is the slant from casing 1 lateral wall and sets up down under second cavity 16, so set up and to carry out the water conservancy diversion to the comdenstion water, accelerate its reflux heating, and wherein the contained angle scope a between bottom surface and the horizontal plane is 5 to 10 under second cavity 16, in order to reach better water conservancy diversion effect.

The lower wall of the shell 1 is provided with a drain hole 17 for draining residual water in the shell 1, two end faces of the shell 1 are respectively provided with a sealing groove 19, and a sealing ring 20 is arranged in the sealing groove 19 to increase the sealing performance of the evaporation device.

As shown in fig. 3 and 4, in order to increase the safety of the present invention, a temperature controller 18 is further disposed on the outer sidewall of the lower end of the housing 1, and the housing 1 needs to be made of a heat conductive metal, so that the housing 1 needs to be made of a heat conductive metal, in this embodiment, the housing 1 and the fixing block 12 are made of aluminum alloy, and the fixing block 12 is disposed such that the heat of the heating rod 4 can be directly conducted to the fixing block 12, and the fixing block 12 directly conducts the heat to the housing 1, so that the temperature controller 18 on the housing 1 can rapidly detect the temperature of the heating rod 4, thereby protecting the heating rod 4 and even the entire device. When the temperature controller 18 is arranged, in order to reduce the error of the casing 1 in conducting heat to the temperature controller 18, the outer side wall of the lower end of the casing 1 should be as thin as possible on the basis of meeting the requirements of safety and sealing performance, so in the embodiment, the section of the casing 1 is also arranged to be cross-shaped; in some embodiments, when the thermostat 18 is disposed, because the thermostat 18 has a larger volume, the lower bottom surface of the second cavity 16 located on the same side as the thermostat 18 needs to move upward to form a structure with unequal heights of the lower bottom surfaces of the left and right second cavities 16, in which case, the water flow at the side of the second cavity 16 with the higher lower bottom surface is more, and the water flow at the side of the second cavity 16 with the lower bottom surface is less, so the inclination angle of the lower bottom surface of the lower second cavity 16 should be larger than that of the lower bottom surface of the higher second cavity 16.

When the sterilizer operates, pure water is introduced into the shell 1 through the water inlet pipeline 5, when the pure water is boiled, the floating piece 81 is pushed to rotate upwards and touch the probe 82, the probe 82 outputs a signal to the control module to indicate that the water is boiled, and the control module controls the next operation; it should be noted that before the pure water is completely boiled, the floating member 81 may be lifted up, so that the floating member 81 and the probe 82 are in short contact, but actually, the pure water does not reach the use standard at this time, and the next operation cannot be performed, therefore, to avoid this situation, the signal output by the probe 82 to the control module needs to be maintained for more than 2 seconds to be an effective signal, that is, the contact time of the floating member 81 and the probe 82 is more than 2 seconds, the control module will determine that the pure water is completely boiled, and the input signal is an invalid signal within less than 2 seconds.

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 above-described embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Claims

1. The utility model provides an evaporation plant for steriliser, its characterized in that includes casing (1), follow on casing (1) length direction runs through and is equipped with first cavity (2), casing (1) both ends face all is equipped with end cover (3), it has heating rod (4) just to peg graft on end cover (3) heating rod (4) stretch into in first cavity (2), casing (1) is equipped with water intake pipe (5), return water pipeline (6), vapor pipeline (7), water level detection mechanism (8) and pressure valve (9), just water intake pipe (5) return water pipeline (6) vapor pipeline (7) and pressure valve (9) all with first cavity (2) intercommunication.

2. The evaporation apparatus for a sterilizer as claimed in claim 1, wherein the water vapor line (7) is provided at the upper end of the housing (1), the inner side walls of both sides of the upper end of the housing (1) are respectively provided with a first protrusion (10) and a second protrusion (11), the first protrusion (10) is located above the second protrusion (11) and the projection of the free end of the first protrusion (10) in the vertical direction falls on the second protrusion (11).

3. An evaporation apparatus for a sterilizer as claimed in claim 2, wherein said first protrusion (10) and said second protrusion (11) are both disposed obliquely downward from the inner side wall of said housing (1).

4. The evaporation apparatus for a sterilizer as claimed in claim 1, wherein a fixing block (12) is inserted into an inner side wall of a lower end of the housing (1), a first through hole (13) is formed in the fixing block (12), and the heating rod (4) is inserted into the first through hole (13).

5. An evaporation apparatus for a sterilizer as claimed in claim 4, wherein a second through hole (14) is further provided on the fixing block (12), a temperature sensor (15) is inserted on the end cap (3), the temperature sensor (15) extends into the first cavity (2) and is inserted in the second through hole (14), and the fixing block (12) is made of a heat conductive material.

6. The evaporation apparatus for a sterilizer according to claim 1, wherein the water level detection mechanism (8) comprises a conductive floating member (81), a probe (82) and a control module, the floating member (81) is movably disposed in the first cavity (2), the density of the floating member (81) is less than the water density, the probe (82) is disposed on the housing (1) and is located on a moving path along which the floating member (81) moves as the water surface rises, and when the floating member (81) is in contact with the probe (82), the probe (82) and the floating member (81) form a complete circuit loop and output a signal to the control module.

7. An evaporation apparatus for a sterilizer as claimed in claim 6, wherein said water level detection mechanism (8) further comprises a first connector (83) and a second connector (84), said first connector (83) being detachably provided on one of said end caps (3), said second connector (84) being connected to said floating member (81) and being hinged to said first connector (83).

8. The evaporation apparatus for a sterilizer as claimed in claim 1, wherein a second cavity (16) which protrudes outwards is provided on the inner side wall of the housing (1), the second cavity (16) runs through the housing (1) along the length direction of the housing (1) and is located above the heating rod (4), the bottom surface of the second cavity (16) is arranged obliquely downwards from the side wall of the housing (1), and the included angle range a between the bottom surface of the second cavity (16) and the horizontal plane is 5 ° to 10 °.

9. An evaporation device for sterilizers according to claim 1, wherein the lower wall of the housing (1) is provided with a drain hole (17).

10. An evaporation apparatus for a sterilizer as claimed in claim 1, wherein the housing (1) is made of metal material, and a thermostat (18) is further provided on the outer wall of the housing (1).