CN109865146B - Heat recovery system of sterilizer - Google Patents
Heat recovery system of sterilizer Download PDFInfo
- Publication number
- CN109865146B CN109865146B CN201711268933.9A CN201711268933A CN109865146B CN 109865146 B CN109865146 B CN 109865146B CN 201711268933 A CN201711268933 A CN 201711268933A CN 109865146 B CN109865146 B CN 109865146B
- Authority
- CN
- China
- Prior art keywords
- water
- heat
- hot
- cold
- percent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention relates to the technical field of heat recovery systems, in particular to a heat recovery system of a sterilizer, which comprises a sterilizer, a steam generator, a heat exchanger, a heat-preservation water tank and a water mixer, wherein the sterilizer comprises a heat exchanger, a heat-preservation water tank and a water mixer; the heat exchanger comprises a cold fluid inlet, a cold fluid outlet, a hot fluid inlet and a hot fluid outlet, the cold fluid inlet is communicated with the cold fluid outlet through a cold fluid pipe in the heat exchanger, the hot fluid inlet is communicated with the hot fluid outlet through a hot fluid pipe in the heat exchanger, and the hot fluid inlet is communicated with the waste steam outlet. The waste steam obtained after the sterilization of the sterilizer enters the heat exchanger for heat exchange, the waste water obtained after the heat exchange of the waste steam is discharged into sewage, and the hot water obtained after the heat exchange is supplied to the steam generator or is used for daily washing and bathing after passing through the water mixer; on one hand, the problems of air pollution and high-temperature waste water and waste steam discharge caused by high-temperature gas discharge are solved, on the other hand, the heat recovery is realized through heat exchange, and the purposes of energy conservation and emission reduction are realized.
Description
Technical Field
The invention relates to the technical field of heat recovery systems, in particular to a heat recovery system of a sterilizer.
Background
The microorganisms are widely present in the surrounding environment, some of which are pathogenic microorganisms, from the viewpoint of infection prevention, medical workers must strictly perform aseptic operation to sterilize used articles and working environment, and ensure normal medical treatment and scientific research. The sterilization mainly comprises the steps of causing the main metabolism of the microorganisms to be obstructed by physical and chemical factors, or causing the bacterial proteins to be denatured and solidified, or destroying genetic materials of the bacterial proteins, so that the microorganisms die.
The prior commonly used pulse double-door high-pressure steam sterilizer generates steam and high-temperature waste water containing peculiar smell which are wasted and have the temperature of 80-120 ℃ and are amplified side by side, thereby causing difficult discharge and seriously influencing the environment around facilities.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a heat recovery system of a sterilizer, which reduces the temperature of waste water of discharged waste steam through a heat exchanger, so that the waste water or the waste steam generated by a high-pressure steam sterilizer can be discharged in a pipeline; in addition, the system recovers and utilizes the heat energy in the discharged waste steam or waste water to achieve the purposes of energy conservation and emission reduction.
In order to achieve the above purpose of the present invention, the following technical solutions are adopted:
a heat recovery system of a sterilizer comprises the sterilizer, a steam generator, a heat exchanger, a heat preservation water tank and a water mixer;
the sterilizer comprises a sterilization box and a steam generator communicated with the sterilization box, wherein the sterilization box is provided with a waste steam outlet;
the heat exchanger comprises a cold fluid inlet, a cold fluid outlet, a hot fluid inlet and a hot fluid outlet, the cold fluid inlet is communicated with the cold fluid outlet through a cold fluid pipe in the heat exchanger, the hot fluid inlet is communicated with the hot fluid outlet through a hot fluid pipe in the heat exchanger, and the hot fluid inlet is communicated with the waste steam outlet;
the heat-preservation water tank comprises a warm water outlet and a warm water inlet, the warm water outlet is communicated with the cold fluid inlet, and the warm water inlet is communicated with the cold fluid outlet;
the water mixer is communicated with the cold fluid outlet.
In the sterilizer heat recovery system provided by the invention, high-temperature waste steam generated after the high-pressure steam sterilizer sterilizes is subjected to heat exchange through the heat exchanger, the cooled waste water is discharged into sewer water, and hot water obtained by heat exchange can be stored in the heat-preservation water tank and also can be supplied to the water mixer to be used as common domestic hot water.
Preferably, the steam generator is provided with a water inlet which is communicated with a tap water pipeline.
In the heat recovery system of the sterilizer, the water inlet is arranged in the steam generator, and common tap water is input into the steam generator through the circulating pump, so that water can be supplemented at any time when the steam generator is in water shortage, and the manual addition of the tap water is not needed.
Preferably, an activated carbon layer is disposed within the steam generator, the activated carbon layer dividing the steam generator into a raw water zone and a pure water zone.
In the sterilizer heat recovery system provided by the invention, the activated carbon layer capable of filtering tap water is arranged in the steam generator, so that impurities in the tap water can be filtered to obtain pure water without other ions, and the steam obtained in the steam generator is ensured to be free of other substances.
Preferably, the water inlet on the steam generator is communicated with the cold fluid outlet on the heat exchanger.
In the heat recovery system of the sterilizer, hot water obtained by heat exchange is supplied to the steam generator, so that heat energy in the waste steam and waste water which are recovered and discharged can be utilized, and the purposes of energy conservation and emission reduction are achieved.
Preferably, a filter valve is arranged on a pipeline communicated with the hot fluid inlet and the waste steam outlet.
In the sterilizer heat recovery system provided by the invention, when the high-pressure steam sterilizer works, the steam containing peculiar smell and the high-temperature wastewater are generated and discharged for filtering through the filter valve, so that the influence on the surrounding environment is reduced.
Preferably, the heat preservation water tank is further provided with a water replenishing port, and the water replenishing port is communicated with the purified water pipeline.
In the sterilizer heat recovery system provided by the invention, because the water in the heat-preservation water tank can be supplied to the steam generator or the water mixer at any time, the water in the heat-preservation water tank can be supplemented at any time, and the pure water can be supplemented into the heat-preservation water tank at any time through the water supplementing port and the pure water pipeline, so that the working efficiency of the hot water recovery system is improved.
Preferably, the cold fluid inlet, the cold fluid outlet, the hot fluid inlet and the hot fluid outlet are connected with temperature sensors.
Preferably, the heat exchanger is a steam-water plate heat exchanger, and the hot flow pipe and the cold flow pipe in the heat exchanger are both made of SU304 stainless steel.
Preferably, a heat insulation layer is attached to the outer layer of the heat insulation water tank, and the heat insulation layer comprises the following raw materials in percentage by weight:
20-30% of aqueous polyurethane resin, 10-20% of polytetrafluoroethylene, 5-15% of sodium methylene dinaphthalene sulfonate, 0-10% of glycol ether, 0-5% of silicone-acrylic emulsion, 0-10% of styrene-acrylic emulsion, 0-5% of silicon carbide, 5-10% of diatomite, 0-5% of polysiloxane prepolymer, 5-10% of benzophenone, 0-3% of flatting agent, 0-3% of defoaming agent, 0-3% of dispersing agent, 0-3% of thickening agent and 0-3% of stabilizing agent.
In the heat recovery system of the sterilizer, the heat loss in the heat-preservation water tank can be effectively reduced by coating the heat-insulation layer on the outer layer of the heat-preservation water tank, and the heat loss rate is lower than 10 percent within 12 hours by using the heat-insulation layer consisting of the components.
Preferably, both the hot and cold flow tubes inside the heat exchanger are corrugated in shape.
The waste steam obtained after the sterilization of the sterilizer enters the heat exchanger for heat exchange, the waste water obtained after the heat exchange of the waste steam is discharged into sewage, and the hot water obtained after the heat exchange is supplied to the steam generator or is used for daily washing and bathing after passing through the water mixer; on one hand, the problems of air pollution and high-temperature waste water and waste steam discharge caused by high-temperature gas discharge are solved, on the other hand, the heat recovery is realized through heat exchange, and the purposes of energy conservation and emission reduction are realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a preferred embodiment of a heat exchange system of a sterilizer provided by the present invention;
fig. 2 is a schematic structural diagram of a steam generator in the heat exchange system of the sterilizer provided by the present invention.
Reference numerals are as follows:
1. a sterilization box; 2. a steam generator; 3. a heat exchanger; 4. a pure water tank; 5. a heat preservation water tank; 6. A water mixer; 7. a filter valve; 8. a temperature sensor; 9. a floor drain; 10. a circulation pump; 11 a liquid level controller; 12. a liquid level gauge; 13. an activated carbon layer; 14. a pressure pump.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.
As shown in fig. 1, a preferred embodiment of the heat exchange system of the sterilizer provided by the present invention comprises a sterilizer, a steam generator 2, a heat exchanger 3, a heat preservation water tank 5 and a water mixer 6, wherein the sterilizer comprises a sterilization tank and the steam generator 2 communicated with the sterilization tank, and the sterilization tank is provided with a waste steam outlet; (ii) a The heat exchanger 3 comprises a cold fluid inlet, a cold fluid outlet, a hot fluid inlet and a hot fluid outlet, the cold fluid inlet is communicated with the cold fluid outlet through a cold fluid pipe in the heat exchanger 3, the hot fluid inlet is communicated with the hot fluid outlet through a hot fluid pipe in the heat exchanger 3, and the hot fluid inlet is communicated with the waste steam outlet; the heat preservation water tank 5 comprises a warm water outlet and a warm water inlet, the warm water outlet is communicated with the cold fluid inlet, the warm water inlet is communicated with the cold fluid outlet, the heat preservation water tank 5 is also provided with a liquid level controller 11 and a liquid level device 12, the liquid level condition in the heat preservation water tank 5 can be observed through the liquid level device 12, and then the water level in the heat preservation water tank 5 is adjusted through the liquid level controller 11; the water mixer 6 is communicated with the cold fluid outlet.
In the invention, on one side of the hot fluid of the heat exchanger 3, a sterilizer is a common high-pressure steam sterilizer on the market at present, the sterilization steam of the high-pressure steam sterilizer is provided by the steam generator 2, the steam generator 2 is communicated with the sterilization box 1, the steam generator 2 gradually heats water to 121 ℃ and supplies the water to the sterilization box 1 for sterilization and disinfection, the waste steam generated after the sterilization and disinfection is in a high-pressure state and has no resistance in the discharge process, the waste steam is introduced into the hot fluid inlet of the heat exchanger 3 from the waste steam port through a pipeline, the waste steam flows through the hot fluid pipe in the heat exchanger 3 and is discharged from the hot fluid outlet, and the waste steam exchanges heat with the cold fluid on the other side in the hot fluid pipe, so that the heat transfer is realized, and the high-temperature steam state is changed into the low-temperature liquid state.
On the cold fluid side of the heat exchanger 3, the heat exchange water in the heat preservation water tank 5 flows into the cold fluid inlet of the heat exchanger 3 through the warm water outlet through a pipeline, flows in the cold fluid pipe in the heat exchanger 3, is discharged from the cold fluid outlet and flows back into the heat preservation water tank 5, and thus a circulation of the heat exchange water in the cold fluid pipe and the heat preservation water tank 5 is formed. The cold fluid outlet is also communicated with a water mixer 6, and the water mixer 6 can directly use the hot exchange water and tap water after mixing for domestic water. When the water mixer 6 needs to work, a valve on a pipeline between the water mixer 6 and the cold fluid outlet can be directly opened.
The waste steam obtained after the high-pressure steam sterilizer is sterilized enters the heat exchanger 3 for heat exchange, low-temperature waste water obtained after the waste steam heat exchange is discharged into sewage, and hot water obtained after the heat exchange is supplied to the steam generator 2 or is used for daily washing and bathing after passing through the water mixer 6; on one hand, the problems of air pollution and high-temperature emission caused by high-temperature gas emission are solved, on the other hand, heat recovery is realized through heat exchange, and the purposes of energy conservation and emission reduction are realized.
As shown in fig. 2, the steam generator 2 is provided with a water inlet, and the water inlet is communicated with a tap water pipeline. Be provided with force pump 14, filter and valve on water supply line, running water can flow into to steam generator 2 in through force pump 14 at any time like this to also the valve can control the velocity of flow and flow, in order to guarantee the water quality in steam generator 2, is provided with the filter on water supply line, can carry out a prefilter to the running water like this, makes the impurity that the water that reaches in the steam generator 2 contains less.
An activated carbon layer is provided in the steam generator 2, and the activated carbon layer divides the steam generator 2 into a raw water zone and a pure water zone. Although the filter is disposed on the tap water pipeline, the filter on the pipeline often does not achieve a very good effect based on cost consideration, or the cost of the reverse osmosis membrane is too high to reduce the flow rate of the tap water pipeline although the filter on the pipeline can achieve a very good filtering effect. Therefore, the active carbon layer 13 is arranged in the steam generator 2, other ions or impurities in tap water can be well filtered, and high-pressure steam generated in the steam generator 2 cannot generate other impurities to influence the sterilization effect.
In a preferred embodiment of the invention, the water inlet on the steam generator 2 communicates with the cold fluid outlet on the heat exchanger 3. According to the invention, the heat exchange water in the heat exchanger 3 is directly introduced into the steam generator 2, so that the water temperature in the steam generator 2 can be increased, and the heat energy of the heat exchange water can be further utilized to achieve the purposes of energy conservation and emission reduction.
In a preferred embodiment of the present invention, a filter valve 7 is provided on a pipe connecting the hot fluid inlet and the exhaust gas outlet. The filtering valve 7 can eliminate impurities in waste steam and remove peculiar smell in the waste steam, the filtering valve 7 commonly used at present can be a Y-shaped filtering valve, and the impurities intercepted in the filtering valve 7 can be conveniently eliminated by the Y-shaped filtering valve. Therefore, the waste water after heat exchange can be directly discharged through the floor drain 9, and the pollution to the existing environment can be avoided.
In a preferred embodiment of the present invention, the heat-preserving water tank 5 is further provided with a water replenishing port, and the water replenishing port is communicated with the purified water pipeline. In the heat recovery system of the sterilizer, because the water in the heat-preservation water tank 5 can be supplied to the steam generator 2 or the water mixer 6 at any time, the water in the heat-preservation water tank 5 can be supplemented at any time, and the pure water can be supplemented into the heat-preservation water tank 5 at any time through the water supplementing port and the pure water pipeline, so that the working efficiency of the hot water recovery system is improved.
In a preferred embodiment of the present invention, the cold fluid inlet, the cold fluid outlet, and the hot fluid inlet and the hot fluid outlet are connected to a temperature sensor 8. The flow rate and the flow rate of the hot fluid and the cold fluid can be well controlled through the temperature sensor 8, and then the heat exchange efficiency is enabled to reach the highest.
In a preferred embodiment of the invention, the heat exchanger is a steam-water plate type heat exchanger, and the hot flow pipe and the cold flow pipe in the heat exchanger are both made of SU304 stainless steel.
In another preferred embodiment of the present invention, the hot flow tube and the cold flow tube inside the heat exchanger 3 can also be made of glass tubes. At present, common heat exchange pipelines in the market are all metal pipes or stainless steel pipes, and the metal pipes or the stainless steel pipes can encounter a great problem in the using process, namely corrosion of the pipelines. In particular, steam pipes are prone to oxidation or other corrosion due to the large amount of oxygen that is often present in the steam pipes and the high temperature environment of 100 degrees or higher. The service life of the pipeline can be greatly reduced for a long time before. Especially, the pipeline in the heat exchanger 3 is inconvenient to disassemble and difficult to replace, and if the pipeline has problems, the whole machine may need to be disassembled for maintenance, so that the maintenance cost of the equipment is very high. Therefore, the problem of corrosion resistance can be well solved by adopting the glass tube for heat exchange. However, it is well known that the heat transfer efficiency of glass is much lower than that of metal, and therefore it is very important how to provide a glass material having high heat transfer performance.
In the embodiment of the invention, the glass tube comprises the following components in percentage by weight:
SiO 2 50～55％、Al 2 O 3 20～30％、B 2 O 3 0～10％、CeO 2 0～5％、CaO 0～4％、MgO 0～3％、BaO 1～4％、SrO 0～1％、ZnO 0～4％、ZrO 2 0～1％、 TiO 2 0～4％、Y 2 O 3 0～4％、La 2 O 3 0～2％、Gd 2 O 3 0～3％、Bi 2 O 3 0～1％、 WO 3 0～2％、Nb 2 O 5 0～5％、Ta 2 O 5 0～1％、K 2 O 0～4％、TeO 2 0～1.5％、 Lu 2 O 3 0～1％、F 0～2％。
as a method of forming the glass tube, a float method, a hole-reserving down-drawing method, an overflow down-drawing method, a re-down-drawing method, and the like can be used.
Table 1 shows the thermal conductivity coefficients of several materials commonly used at present.
[ TABLE 1 ]
The above thermal conductivity is the amount of heat transferred through an area of 1 square meter in 1 second (1S) by 1 degree (K) of temperature difference between both side surfaces of a 1m thick material under a stable heat transfer condition, and is expressed as W/(m · K).
Table 2 shows several examples of compositions of glass tubes according to the invention.
[ TABLE 2 ]
As can be seen from Table 2, the glass tube comprising the above components can achieve a good heat transfer effect, and particularly when the thickness of the glass tube is set to 2-3 cm, the difference between the heat transfer efficiency of the glass tube and the heat transfer efficiency of the metal tube commonly used at present is very small.
According to the heat recovery system of the sterilizer, provided by the embodiment of the invention, the outer layer of the heat-insulating water tank 5 is attached with the heat-insulating layer, and the heat-insulating layer comprises the following raw materials in percentage by weight:
20-30% of aqueous polyurethane resin, 10-20% of polytetrafluoroethylene, 5-15% of sodium methylene dinaphthalene sulfonate, 0-10% of glycol ether, 0-5% of silicone-acrylic emulsion, 0-10% of styrene-acrylic emulsion, 0-5% of silicon carbide, 5-10% of diatomite, 0-5% of polysiloxane prepolymer, 5-10% of benzophenone, 0-3% of flatting agent, 0-3% of defoaming agent, 0-3% of dispersing agent, 0-3% of thickening agent and 0-3% of stabilizing agent.
[ EXAMPLES one ]
The heat-insulating layer comprises the following raw materials: 25% of aqueous polyurethane resin, 15% of polytetrafluoroethylene, 13% of sodium methylene dinaphthalene sulfonate, 5% of glycol ether, 3% of silicone-acrylic emulsion, 7% of styrene-acrylic emulsion, 3% of silicon carbide, 7% of diatomite, 3% of polysiloxane prepolymer, 7% of benzophenone, 2% of a flatting agent, 2% of a defoaming agent, 3% of a dispersing agent, 2% of a thickening agent and 3% of a stabilizing agent. And (3) adding the thermal insulation layer raw materials into a strong stirrer to be stirred for 5 minutes to obtain the required thermal insulation layer material.
[ EXAMPLE II ]
The heat-insulating layer comprises the following raw materials: 30% of aqueous polyurethane resin, 20% of polytetrafluoroethylene, 10% of sodium methylene dinaphthalene sulfonate, 8% of glycol ether, 5% of silicone-acrylate emulsion, 5% of styrene-acrylic emulsion, 5% of silicon carbide, 5% of diatomite, 2% of polysiloxane prepolymer, 5% of benzophenone, 1% of leveling agent, 1% of defoaming agent, 1% of dispersing agent, 1% of thickening agent and 1% of stabilizing agent. And adding the wear-resistant layer raw materials into a strong stirrer, and stirring for 8 minutes to obtain the required heat-insulating layer material.
The heat insulating layer materials of the first and second examples were respectively attached to the outer layer of the heat insulating water tank 5, and then the change of the water temperature in the heat insulating water tank 5 within 12 hours was measured as shown in table 3 (in a shutdown state).
[ TABLE 3 ]
In table three, the first comparative example is a test result without any insulation material; the second comparative example is a test result of fitting a commercially available conventional insulation board (Jiangsu Jiangya energy-saving building materials Co., ltd., model JY-1); comparative example three test results were obtained for three-position fitting of conventional plastic foam (Hefexinbang packaging products, ltd.) on the market.
From the table above, it can be seen that the first and second embodiments have better thermal insulation performance within 12 hours, which is much higher than the first comparative example without any thermal insulation material, and is slightly higher than the second and third comparative examples with thermal insulation board and plastic foam.
In the present invention, both the hot flow pipe and the cold flow pipe inside the heat exchanger are corrugated.
In another preferred embodiment of the present invention, the hot flow pipe and the cold flow pipe inside the heat exchanger 3 are both cylindrical and spiral; wherein the shape of the heat flow tube satisfies the following formula:
the shape of the cold flow pipe satisfies the following formula:
in the formula, L 1 The distance from the hot fluid inlet to the hot fluid outlet; l is a radical of an alcohol 2 Distance from the cold fluid inlet to the cold fluid outlet; h 1 The pitch of the hot flow tube; h 2 The screw pitch of the cold flow pipe; d 1 The diameter of the bottom surface of the cylinder of the heat flow pipe; d 2 Is the diameter of the cylindrical bottom surface of the cold flow pipe.
The cold flow pipe and the hot flow pipe which are in the shape of a cylinder spiral can increase the heat exchange area and improve the heat exchange efficiency. In addition to the heat flow pipe belong to release the heat from intraductal, consequently should not too big at the in-process pipeline pitch density of heat transfer, can cause thermal pile up like this, pipeline pitch density undersize also can make heat exchange efficiency reduce, consequently the aforesaid satisfies the heat flow pipe of above-mentioned formula structure and can reach best heat exchange efficiency. In addition to the cold flow pipe try to say that the heat shifts to intraductally, consequently should not pitch density undersize at the in-process of heat transfer, can cause calorific loss like this, pipeline pitch density too big also can make heat exchange efficiency reduce certainly, consequently the aforesaid satisfies the cold flow of two structures of above-mentioned formula and can reach best heat exchange efficiency.
In another embodiment of the present invention, the hot flow pipe and the cold flow pipe inside the heat exchanger 3 are also spiral; however, the helical pipe has a non-uniform pitch and a non-uniform diameter of the bottom surface. For the hot flow pipe, the speed and heat exchange efficiency of steam at the hot fluid inlet are lower than those of liquid water due to the input of high-pressure steam, so that the screw pitch of the hot flow pipe is gradually increased from the hot fluid inlet to the hot fluid outlet, and the diameter of the bottom surface is gradually reduced. For the cold flow pipe, since the cold fluid inlet and the cold fluid outlet are both liquid water, there is no difference in flow rate and heat exchange, but the water temperature at the cold fluid inlet is often lower than the water temperature at the cold fluid outlet, so the heat exchange at the cold fluid inlet is more efficient than the heat exchange at the cold fluid outlet, and therefore, from the cold fluid inlet to the cold fluid outlet, the pitch of the cold flow pipe is gradually reduced, and the diameter of the bottom surface thereof is gradually increased. The invention can improve the heat recovery rate to the maximum extent through the design of the cold flow pipe and the hot flow pipe with the structure.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A sterilizer heat recovery system is characterized by comprising a sterilizer, a steam generator, a heat exchanger, a heat preservation water tank and a water mixer;
wherein the sterilizer is communicated with the steam generator, and the sterilization box is provided with a waste steam outlet;
the heat exchanger comprises a cold fluid inlet, a cold fluid outlet, a hot fluid inlet and a hot fluid outlet, the cold fluid inlet is communicated with the cold fluid outlet through a cold fluid pipe in the heat exchanger, the hot fluid inlet is communicated with the hot fluid outlet through a hot fluid pipe in the heat exchanger, and the hot fluid inlet is communicated with the waste steam outlet;
the heat-preservation water tank comprises a warm water outlet and a warm water inlet, the warm water outlet is communicated with the cold fluid inlet, and the warm water inlet is communicated with the cold fluid outlet;
the water mixer is communicated with the cold fluid outlet;
the hot flow pipe and the cold flow pipe in the heat exchanger are prepared by adopting glass pipes, and the glass pipes comprise the following components in percentage by weight:
SiO 2 36%、Al 2 O 3 25%、B 2 O 3 7.5%、CeO 2 3%、CaO 1%、MgO 1%、BaO 2%、SrO 1%、ZnO 2%、ZrO 2 0.5%、TiO 2 1%、Y 2 O 3 3%、La 2 O 3 2%、Gd 2 O 3 3%、Bi 2 O 3 1%、WO 3 2%、Nb 2 O 5 2%、Ta 2 O 5 1%、K 2 O 3%、TeO 2 1%、Lu 2 O 3 1%、F 1%；
the hot flow pipe and the cold flow pipe in the heat exchanger (3) are both cylindrical and spiral; wherein the shape of the hot flow tube satisfies the following formula:
the shape of the cold flow pipe satisfies the following formula:
in the formula, L1 is the distance from a hot fluid inlet to a hot fluid outlet; l2 is the distance from the cold fluid inlet to the cold fluid outlet; h1 is the screw pitch of the hot flow tube; h2 is the screw pitch of the cold flow pipe; d1 is the diameter of the cylindrical bottom surface of the heat flow pipe; d2 is the diameter of the cylindrical bottom surface of the cold flow pipe;
or the hot fluid inlet starts to the hot fluid outlet, the pitch of the hot fluid pipe is gradually increased, and the diameter of the bottom surface is gradually reduced; the cold fluid inlet is connected with the cold fluid outlet, the screw pitch of the cold flow pipe is gradually reduced, and the diameter of the bottom surface of the cold flow pipe is gradually increased;
an activated carbon layer is arranged in the steam generator and divides the steam generator into a raw water area and a pure water area;
a water inlet on the steam generator is communicated with a cold fluid outlet on the heat exchanger;
the outer layer of the heat-insulating water tank is attached with a heat-insulating layer, and the heat-insulating layer comprises the following raw materials in percentage by weight:
20 to 30 percent of aqueous polyurethane resin, 10 to 20 percent of polytetrafluoroethylene, 5 to 15 percent of sodium methylene dinaphthalene sulfonate, 0 to 10 percent of glycol ether, 0 to 5 percent of silicone-acrylic emulsion, 0 to 10 percent of styrene-acrylic emulsion, 0 to 5 percent of silicon carbide, 5 to 10 percent of diatomite, 0 to 5 percent of polysiloxane prepolymer, 5 to 10 percent of benzophenone, 0 to 3 percent of flatting agent, 0 to 3 percent of defoaming agent, 0 to 3 percent of dispersing agent, 0 to 3 percent of thickening agent and 0 to 3 percent of stabilizing agent.
2. The sterilizer heat recovery system of claim 1 wherein said steam generator is provided with a water inlet, said water inlet being in communication with a water supply line.
3. A sterilizer heat recovery system as claimed in claim 1 wherein a filter valve is provided in the conduit communicating the hot fluid inlet with the waste steam outlet.
4. The sterilizer heat recovery system according to claim 1, wherein a water replenishing port is further provided on the hot water holding tank, and the water replenishing port is communicated with a purified water pipeline.
5. The sterilizer heat recovery system of claim 1, wherein temperature sensors are connected to the pipes connecting the cold fluid inlet, the cold fluid outlet, the hot fluid inlet and the hot fluid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711268933.9A CN109865146B (en) | 2017-12-05 | 2017-12-05 | Heat recovery system of sterilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711268933.9A CN109865146B (en) | 2017-12-05 | 2017-12-05 | Heat recovery system of sterilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109865146A CN109865146A (en) | 2019-06-11 |
| CN109865146B true CN109865146B (en) | 2023-03-10 |
Family
ID=66916572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711268933.9A Active CN109865146B (en) | 2017-12-05 | 2017-12-05 | Heat recovery system of sterilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109865146B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368512A (en) * | 2019-08-15 | 2019-10-25 | 田花香 | A kind of portable childbirth operation disinfecting utensils device |
| WO2021253327A1 (en) * | 2020-06-18 | 2021-12-23 | 大正和仪器股份有限公司 | Waste heat recovery system of steam sterilization pot |
| CN113813409A (en) * | 2020-06-18 | 2021-12-21 | 大正和仪器股份有限公司 | Waste heat recovery system of steam sterilizing pot |
| TWI770532B (en) * | 2020-06-18 | 2022-07-11 | 大正和儀器股份有限公司 | Steam sterilizer waste heat recovery system |
| CN113975419B (en) * | 2021-11-02 | 2023-09-19 | 连武林 | Oral cavity inspection instrument degassing unit for department of stomatology |
| CN114133089A (en) * | 2021-12-14 | 2022-03-04 | 王敏 | Hospital disinfection supply center water treatment system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497773A (en) * | 1981-03-03 | 1985-02-05 | Vernitron Corporation | Process and apparatus for shortening the drying stage of a steam sterilization cycle |
| CN203354935U (en) * | 2013-06-10 | 2013-12-25 | 山东威高集团医用高分子制品股份有限公司 | Energy-saving biological safety type pulsation vacuum sterilizer |
| CN104474564A (en) * | 2014-12-08 | 2015-04-01 | 老肯医疗科技股份有限公司 | Energy-saving type pulsation vacuum pressure steam sterilizer |
| CN204610289U (en) * | 2015-05-06 | 2015-09-02 | 厦门泰柯实业有限公司 | A kind of waste heat recovering device of air compressor |
| CN105219249A (en) * | 2015-11-16 | 2016-01-06 | 重庆建工住宅建设有限公司 | A kind of luminous reflectance thermal insulating coating |
-
2017
- 2017-12-05 CN CN201711268933.9A patent/CN109865146B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497773A (en) * | 1981-03-03 | 1985-02-05 | Vernitron Corporation | Process and apparatus for shortening the drying stage of a steam sterilization cycle |
| CN203354935U (en) * | 2013-06-10 | 2013-12-25 | 山东威高集团医用高分子制品股份有限公司 | Energy-saving biological safety type pulsation vacuum sterilizer |
| CN104474564A (en) * | 2014-12-08 | 2015-04-01 | 老肯医疗科技股份有限公司 | Energy-saving type pulsation vacuum pressure steam sterilizer |
| CN204610289U (en) * | 2015-05-06 | 2015-09-02 | 厦门泰柯实业有限公司 | A kind of waste heat recovering device of air compressor |
| CN105219249A (en) * | 2015-11-16 | 2016-01-06 | 重庆建工住宅建设有限公司 | A kind of luminous reflectance thermal insulating coating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109865146A (en) | 2019-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109865146B (en) | Heat recovery system of sterilizer | |
| CN107555558A (en) | A kind of adjustable three water outlets water purifier extension set of water temperature and its control method | |
| WO2016150226A1 (en) | Integrated and water yield adjustable t-type multi-effect water distillator | |
| CN204201873U (en) | A kind of boiler deoxidizing method equipment of novel energy-conserving | |
| CN207259295U (en) | Residential building sub-prime water system | |
| CN106419561A (en) | Constant temperate and energy saving centralized direct drinking water supply system | |
| CN212057246U (en) | Steam condensate water recycling device | |
| CN104456953A (en) | Waste heat recycling system | |
| CN212299548U (en) | Bathing wastewater waste heat recovery system | |
| CN210030093U (en) | Hot water disinfection and purification device | |
| CN206630457U (en) | A kind of constant temperature energy-saving centralization direct drinking feed system | |
| CN207713486U (en) | A kind of ceramics MBR equipment | |
| CN206365788U (en) | A kind of Warm water water-boiling apparatus | |
| CN206624703U (en) | A kind of novel straight drinking machine | |
| CN213771669U (en) | Baby's bathing water processing system | |
| CN207768760U (en) | A kind of duct type thermal disinfection device | |
| CN206453677U (en) | A kind of normal pressure water dispenser | |
| CN114105411B (en) | Water treatment system based on enhanced heat exchange | |
| CN213680108U (en) | Desk-top soft integrative central water machine that cleans | |
| CN110330158A (en) | A kind of mobile purification apparatus of cooling water | |
| CN220887082U (en) | Waterway system for water purifying and drinking equipment and water purifying and drinking equipment | |
| CN216393819U (en) | Step-by-step heating non-pressure-bearing lower heat exchange cold boiled water constant temperature system | |
| CN202289879U (en) | Active ceramic heating water purifier | |
| CN219807791U (en) | Purified water preparation system | |
| CN108314247A (en) | A kind of household purifying equipment for running water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |