KR20110131775A - Buffer unit having multiple chamber and food garbage disposer having the same - Google Patents

Abstract

PURPOSE: A buffer unit comprising a plurality of chambers and a food waste disposal device comprising the same are provided to prevent the damage to a buffer unit due to increase in pressure and the emission of hot steam to the outside of the buffer unit since the liquefaction of hot steam is progressed through a second chamber. CONSTITUTION: A buffer unit(400) comprises housings(410,420), a steam flowing unit, and a condensate discharge pipe(450). The housings comprises first and second chambers(422,426). Exhaust gas emitting from the drying furnace of the disposal device flows into the first chamber. The steam from the first chamber flows into the second chamber. The steam flowing unit connects the first and second chambers. The steam from the first chamber flows in the steam flowing unit. The condensate discharge pipe is arranged on the lower part of the housing. The condensate discharge pipe discharges condensate from the first and second chambers.

Description

Buffer unit having multiple chambers and food garbage disposer having the same

The present invention relates to a buffer unit having a plurality of chambers and a food processor including the same, and more particularly, excessive pressure rise and high temperature steam generated by exhaust gas of high temperature and high pressure discharged from a drying furnace into which food waste is introduced. It relates to a buffer unit having a plurality of chambers that can prevent the discharge of and a food processor including the same.

The food waste treatment machine discharges odor-induced exhaust gas of high temperature and high humidity in a short time. In particular, as the free standing type food processing machine is emerging, interest in high temperature, high humidity and large amount of exhaust gas treatment is increasing.

In order to solve the problem of food waste disposal such as high temperature, high humidity and discharge of large amount of water within a short time, the circulation condensation type food treatment method has been recently devised in various forms. The circulating condensation method is a method of condensing the exhaust gas discharged by heat exchange to remove moisture, and then recycling the low-temperature humidified exhaust gas into a drying furnace.

Exhaust gas discharged from the drying furnace is generally cooled while passing through a condensate storage buffer and a heat exchanger to generate condensate. The condensate can be discharged to the outside through a separate discharge pump. On the other hand, when an excessive amount of high temperature exhaust gas is introduced into the condensate storage buffer, the capacity of the heat exchanger is exceeded, and the hot water vapor which is not cooled is discharged to the outside as it is, which may cause safety problems and discomfort. In addition, pressure build-up can occur due to excessive water vapor, which can strain the condensate storage buffer.

In addition, the pressure rise may cause a reverse flow of the exhaust gas in the condensate storage buffer, thereby making it impossible to operate normally on the food processor formed of the circulation condensation method.

In order to solve the above problems, the present invention separates an existing buffer unit into a first chamber into which a high temperature exhaust gas flows and a second chamber in which liquefaction is performed on the high temperature water vapor moved from the first chamber. It is an object of the present invention to provide a buffer unit having a plurality of chambers capable of smoothly cooling a high temperature exhaust gas and a food processor including the same.

A buffer unit according to an aspect of the present invention provided to achieve the above object includes a first chamber into which exhaust gas generated in a drying furnace of a food processor is introduced, and a second chamber into which water vapor in the first chamber is introduced. Connecting the housing, the first chamber and the second chamber, a water vapor flow portion through which water vapor flows in the first chamber, and disposed below the housing to discharge the condensed water stored in the first chamber and the second chamber It characterized in that it comprises a condensate discharge pipe.

The water vapor flow unit may include a water vapor outlet tube disposed to pass through the inside and the outside of the second chamber, and the first chamber and the water vapor outlet tube to communicate with each other, and a water vapor connection tube disposed outside the housing.

The buffer unit may further include a filter module disposed at an upper end of the housing to communicate with the second chamber, wherein water vapor in the second chamber may be discharged to the outside of the housing through the filter module.

The condensate discharge line includes a first discharge line communicating with the first chamber and a second discharge line communicating with the second chamber, wherein a check valve is disposed between the first discharge line and the second discharge line. Can be.

A mesh network may be attached to one end of the steam outlet pipe located in the second chamber.

The mesh network may be immersed in condensed water in the second chamber.

An electrolysis device may be disposed in the first chamber to perform any one or more of sterilization and deodorization of the contained condensate.

The food processor according to an aspect of the present invention provided to achieve the above object further includes a heat exchanger connected to the buffer unit, the drying furnace, and the buffer unit, and the exhaust gas generated in the drying furnace includes the buffer unit. Recirculating through the first chamber and the heat exchanger to the drying furnace characterized in that the circulating flow.

The heat exchanger is composed of a plurality of columns may be multi-stage cooling.

The food processor further includes a circular tube-shaped intake and exhaust module disposed on an upper end of the drying furnace, and a circulation fan disposed on a gas discharge passage connecting the drying furnace and the buffer unit, wherein the intake and exhaust module is entering and exiting the drying furnace. It is possible to mutual heat exchange of the exhaust gas.

Buffer unit having a plurality of chambers of the present invention described above and the food waste treatment apparatus including the same when the pressure rise due to the inflow of excessive high temperature steam in the process of the exhaust gas discharged from the drying furnace is converted to condensate through the buffer unit By liquefying the high temperature water vapor through a separate second chamber in the buffer unit, it is possible to prevent the high temperature water vapor from being discharged to the outside of the buffer unit and to prevent the damage of the buffer unit due to the pressure rise. .

The present invention constitutes a second chamber having a separate water vapor liquefaction function connected to a steam flow pipe in an existing condensate buffer in a food processor driven by a circulation condensation method, and a buffer through a process of liquefying high temperature water vapor in the second chamber. It is possible to prevent the increase in the overall pressure in the unit.

The present invention makes it possible to achieve a cooling and pressure increase prevention system through a water vapor liquefaction function by configuring a plurality of chambers in a simple structure using a space in an existing condensate buffer.

1 is a perspective view showing a food processor having a buffer unit having a plurality of chambers according to the present invention;
2 is a perspective view of a buffer unit according to the present invention;
3 is an exploded perspective view of the buffer unit of FIG. 2 viewed from above;
4 is an exploded perspective view of the buffer unit of FIG. 2 viewed from below;
5 is a conceptual diagram for showing the operation principle of the buffer unit according to the present invention, and
6 is a graph showing the results of temperature measurement of water vapor at a plurality of places in the buffer unit.

The above objects, features and other advantages of the present invention will become more apparent by describing the preferred embodiments of the present invention in detail with reference to the accompanying drawings. Hereinafter, with reference to the accompanying drawings will be described in detail a buffer unit having a plurality of chambers and a food processor including the same according to an embodiment of the present invention.

1 is a perspective view showing a food processor having a buffer unit having a plurality of chambers according to the present invention, Figure 2 is a perspective view of the buffer unit according to the present invention, Figure 3 is an exploded perspective view of the buffer unit of Figure 2 from the top, 4 is an exploded perspective view of the buffer unit of FIG. 2 viewed from below, FIG. 5 is a conceptual view illustrating the operation principle of the buffer unit according to the present invention, and FIG. 6 is a temperature measurement result of water vapor at a plurality of places in the buffer unit. It is a graph.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Overall structure of food waste processor 1000

The overall structure of the food waste processor 1000 according to the present invention will be described with reference to FIG. 1. Food processor 1000 is a drying unit 100, the intake and exhaust module 200, the intake and exhaust module 200 disposed on the drying furnace 100, the buffer unit 400 is connected through the gas discharge passage 310, gas A circulation fan 300 disposed on the discharge passage 310, and a heat exchanger 500 connected through the drying furnace 100 and the gas suction passage 510.

Drying furnace 100 is a hollow receiving member having an internal space of a predetermined size so that a predetermined amount of the input food waste is filled, it may be preferably made in a spherical shape. The drying furnace 100 may be manufactured firmly by a casting process, and a grinding screw (not shown) may be disposed therein to enable grinding and stirring operations. In addition, a heater member (not shown) is installed in the drying furnace 100 to allow the drying operation to be performed at the same time during the grinding and stirring process.

Intake and exhaust module 200 is made of a hollow tube shape. In the central portion of the intake and exhaust module 200 is provided with a cover 250 that can be opened and closed so as to inject food waste into the drying furnace 100. Exhaust gases discharged or introduced from the drying furnace 100 are exchanged with each other in the intake and exhaust module 200. Separation plate (not shown) is provided inside the intake and exhaust module 200 to divide the inside into upper and lower parts. During the flow of the inflow exhaust gas and the exhaust exhaust gas up and down based on the separation plate, the heat exchange is performed through the separation plate.

The buffer unit 400 is disposed below the food processor 1000 and discharges condensate formed from exhaust gas introduced into the food processor 1000 to the outside using the condensate discharge pipe 450 mounted at the lower end thereof. Here, the exhaust gas containing the high temperature water vapor is cooled while passing through a plurality of chambers formed in the buffer unit 400, and the cooled water vapor is discharged through the deodorization module 430.

The heat exchanger 500 includes a cooling fan 550 to lower the temperature of the exhaust gas flowing therein. The exhaust gas cooled by the heat exchanger 500 is supplied into the drying furnace 100 through the gas suction passage 510. The heat exchanger 500 is composed of a plurality of columns (not shown) to enable the multi-stage cooling of the incoming exhaust gas.

Specifically, separate cooling fins (not shown) are disposed between the plurality of columns, and a buffer space (not shown) is formed between the columns. The exhaust gas introduced into the heat exchanger 500 flows through the primary column, and the primary cooling is performed. After the velocity is adjusted while passing through the buffer space, the exhaust gas is introduced into the secondary column and the secondary cooling is performed. As described above, the heat exchanger 500 of the present invention makes efficient heat exchange for the introduced exhaust gas by using a cooling system composed of multiple stages.

Flow of Exhaust Gas from Food Processor 1000

The flow of the exhaust gas from the food processor 1000 will be described below. The high temperature and high humidity exhaust gas generated from the food waste of the drying furnace 100 passes through the intake and exhaust module 200 and the operation of the circulation fan 300. Flow to the buffer unit 400. Water in the exhaust gas introduced into the buffer unit 400 is naturally cooled in the buffer unit 400, converted into condensed water, or cooled in the heat exchanger 500, and then introduced into the buffer unit 400 in a liquid state. The condensed water stored in the buffer unit 400 is periodically discharged to the outside through the condensate discharge pipe line 450 mounted below the buffer unit 400.

The low temperature and low humidity exhaust gas cooled by the heat exchanger 500 and reduced in moisture is reintroduced into the drying furnace 100 through the intake and exhaust module 200. As described above, in the present invention, the exhaust gas generated in the drying furnace 100 passes through the intake and exhaust module 200, the circulation fan 300, the buffer unit 400, and the heat exchanger 500 and back to the drying furnace 100. By reflowing, a condensed system is achieved.

On the other hand, the present invention is the cooling and cooling in a plurality of chambers (the detailed structure of the chamber will be described later in the detailed structure of the buffer unit) in which the high-temperature exhaust gas introduced into the buffer unit 400 is formed in the buffer unit 400 The liquefaction process is performed and may be discharged through the deodorizing filter 430.

Detailed structure of the buffer unit 400

A detailed structure of the buffer unit 400 in the present invention will be described with reference to FIGS. 2 to 5. The buffer unit 400 includes an upper housing 410, a lower housing 420, and a filter module 430 connected to the upper housing 410. The upper housing 410 and the lower housing 420 may be referred to collectively as the housings 410 and 420.

The upper housing 410 has an inlet 412 through which the discharge gas from the drying furnace 100 is introduced, and the filter module 430 is fastened to the upper housing 410. On the other hand, on the upper housing 410 is formed an outlet 416 for discharging the exhaust gas to the heat exchanger 500 side. A sensor holder 415 may be formed on the upper housing 410, and a water level sensor (not shown) is attached to the sensor holder 415 to detect the level of condensate stored in the buffer unit 400. To be able. The inner space of the upper housing 410 is divided into the first chamber 422 and the second chamber 426 through the upper partition 425a.

The lower housing 420 is located below the upper housing 410 and functions as a storage space for condensate. The diaphragm 424 is disposed at regular intervals in the lower housing 420 to prevent shaking of the condensate stored therein. The watertight member 421 is interposed between the upper housing 410 and the lower housing 420 to prevent leakage of condensed water or exhaust gas.

The inner space of the lower housing 420 is divided into the first chamber 422 and the second chamber 426 through the lower partition 425b. Here, the upper partition 425a and the lower partition 425b are connected to each other in a straight line when the upper housing 410 and the lower housing 420 are combined to function as the partition 425. That is, the partition wall 425 separates the interior of the housings 410 and 420 into the first chamber 422 and the second chamber 426 to function as a separate individual space.

The steam flow portion 460 is disposed in the upper housing 410. The steam flow unit 460 is a steam inlet pipe 463 disposed to pass through the inside and outside of the first chamber 422, a steam outlet pipe line 465 disposed to pass through the inside and outside of the second chamber 426, and a steam inlet pipe ( 463 and the steam outlet pipe 465 and includes a steam connection pipe 461 disposed to be exposed to the outside of the upper housing 410.

The condensed water discharge passage 450 for discharging the condensed water stored in the first chamber 422 and the second chamber 426 is disposed below the lower housing 420. The condensate discharge conduit 450 includes a first discharge conduit 454 communicating with the first chamber 422 and a second discharge conduit 452 communicating with the second chamber 426.

The check valve 456 is disposed between the first discharge pipe 454 and the second discharge pipe 452. The check valve 456 prevents the movement of pressure between the first chamber 422 and the second chamber 426. That is, when the pressure in the first chamber 422 increases, the pressure is prevented from being transmitted from the first discharge pipe 454 to the second chamber 426 through the second discharge pipe 452.

When the condensate stored in the second chamber 426 is discharged, when the pressure applied to the check valve 456 does not reach the reference pressure, the condensate is discharged to the drain 470 through the condensate discharge line 450. . Here, the reference pressure may be defined as the maximum pressure allowable in the first chamber 422 when an excessive amount of exhaust gas flows into the first chamber 422.

The filter module 430 has a deodorant for removing odor of exhaust gas in a deodorization space (not shown) therein. The deodorant may be a material generally available such as zeolite and activated carbon. An exhaust port 436 is provided at one side of the filter module 430 so that the exhaust gas reacted in the deodorization space is naturally discharged through the exhaust port 436 by internal pressure.

Water Vapor Liquefaction Principle in Buffer Unit 400

Hereinafter, the operation principle of the buffer unit 400 will be described with reference to FIG. 5.

Exhaust gas containing high temperature water vapor discharged from the drying furnace 100 passes through the inlet 412 to the first chamber 422 and then condenses and moves to the heat exchanger 500 through the outlet 416. (Reference numeral 411 shows the flow of the exhaust gas circulating flow).

When the amount of the exhaust gas flowing into the first chamber 422 is excessive, the capacity of the first chamber 422 may be exceeded, and an appropriate pressure that the first chamber 422 may maintain may be exceeded. In this case, the exhaust gas in the first chamber 422 moves to the second chamber 426 through the steam flow unit 460 (reference numeral 428 denotes a hot exhaust gas flowing into the steam flow unit 460). Seems to).

The high-temperature exhaust gas passes through the steam inlet pipe 463, the steam connection pipe 461, and the steam outlet pipe 465 in order to exchange heat with natural air. In particular, since the steam connection pipe 461 is disposed outside the housings 410 and 420, the steam connection pipe 461 is disposed at a lower external temperature than the inside of the housings 410 and 420, thereby creating a condition in which cooling can be effectively performed.

 The water vapor component in the exhaust gas discharged to the condensate in the second chamber 426 via the water vapor outlet pipe 465 undergoes a liquefaction process in the condensate, and the remaining exhaust gas that is not liquefied is discharged into the empty space in the second chamber 426. . The discharged exhaust gas is introduced into the deodorizing filter 430 in a state where the temperature is lowered and is discharged to the outside through the exhaust port 436 (reference numeral 429 indicates that low-temperature exhaust gas is introduced into the deodorizing filter 430). see).

A mesh network 466 is installed at one end of the steam outlet pipe 465, that is, at the side end of the steam outlet pipe 465 immersed in the condensed water in the second chamber 426. The mesh network 466 has a mesh shape consisting of a plurality of grids, and makes the exhaust pores small in the process of discharging the high-temperature exhaust gas into the condensate through the water vapor outlet pipe 465, resulting in noise caused by foaming. Can be reduced.

Temperature due to water vapor liquefaction in the buffer unit 400 Abatement  effect

Hereinafter, a temperature reduction using water vapor liquefaction in the buffer unit 400 according to the present invention will be described with reference to FIGS. 5 and 6.

In the graph of FIG. 6, the horizontal axis is a time axis set in minute intervals, and the vertical axis is a temperature axis set in degrees Celsius. The a, b and c diagrams on the graph are the temperature in the main chamber 422, the temperature at the side of the steam outlet pipe 465 disposed in the second chamber 426, and the inlet temperature of the filter module 430 in FIG. 5, respectively. It is assumed to point to.

The a and b diagrams show the region A in the high temperature state close to 100 ° C. up to about 60 minutes after the temperature increases rapidly from the 15 minutes after the start of the measurement. In the region A, a high pressure of about 4 kpa is maintained under the influence of the high temperature exhaust gas flowing from the drying furnace 100. On the other hand, in the experiment of the present invention it can be seen that as a result of measuring the temperature for a total of 135 minutes, the average pressure state of 2kpa.

Looking at the trend of the a, b diagram it can be seen that the pressure is also high when the measurement temperature is high. This is due to the excessive amount of hot exhaust gas flowing into the buffer units 410 and 420 exceeding the standard capacity.

On the other hand, the c plot maintains a constant range near 25 ° C. during the measurement. That is, it can be seen that the temperature of the exhaust gas flowing into the filter module 430 is uniformly maintained in the same state as the external atmospheric temperature.

Referring to the table at the bottom of the graph, the channels CH001, CH002, and CH003 correspond to the a, b, and c diagrams, respectively, and represent the minimum temperature, the maximum temperature, and the temperature deviation, respectively. The channels CH001 and CH002 show temperature deviations of 73.0 and 74.7, respectively, whereas the channel CH003 shows only a temperature deviation of 3.4, resulting in that only low-temperature exhaust gas is discharged through the exhaust port 436 of the filter module 430. You can check it.

Based on the results of the above experiment, the present invention provides a high-temperature exhaust gas in the first chamber 422 through the water vapor flow unit 460 and the second chamber 426 to liquefy the high temperature water vapor components in the exhaust gas. Allow for cooling. At the same time, it is possible to eliminate the high pressure state generated in the first chamber 422.

Operation of food processor 1000

Hereinafter, the overall operation of the food processor 1000 according to the present invention will be described with reference to FIGS. 1 to 6.

Exhaust gas generated during the stirring, grinding, and drying process in the drying furnace 100 is introduced into the buffer unit 400 through the intake and exhaust module 200 and the gas discharge passage 310. The hot and humid exhaust gas introduced into the buffer unit 400 is converted into condensed water and then stored and discharged to the outside through the condensed water discharge pipe 450. The condensate conversion process may be performed while circulating inside the buffer unit 400, but may also occur in a process in which the exhaust gas passing through the buffer unit 400 is cooled in the heat exchanger 500 operated in a dual cooling method.

The condensate conversion process in the buffer unit 400 includes a plurality of chambers through a first conversion process through the first chamber 422 and a second conversion process through the steam flow unit 460 and the second chamber 426. In the process effectively. The secondary conversion process in the present invention may be referred to as a liquefaction process for the exhaust gas that overflows when the pressure in the first chamber 422 is excessive.

Exhaust gases passing through the buffer unit 400 and the heat exchanger 500 may be circulated into the drying furnace 100. The low temperature and low humidity exhaust gas is heat-exchanged with the hot and humid exhaust gas from the drying furnace 100 through the intake and exhaust module 200 during the flow into the drying furnace 100 through the intake and exhaust module 200. The high temperature and high humidity exhaust gas discharged from the drying furnace 100 is primarily thermally exchanged so that the temperature decreases while passing through the heat exchanger 500, and the temperature rises secondarily through the intake and exhaust module 200. It is put into the drying furnace 100 in a state where heat exchange is made. Due to the multi-stage heat exchange method in the first and second stages, the thermal efficiency can be increased.

The present invention can be effectively cooled to the high temperature water vapor discharged from the drying furnace by configuring a plurality of chamber space by placing the partition and the steam flow in the existing condensate storage buffer unit in the food processor driven by the circulation condensation method Enable the system

While preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described specific embodiments. That is, those skilled in the art to which the present invention pertains can make many changes and modifications to the present invention without departing from the spirit and scope of the appended claims, and all such appropriate changes and modifications are possible. Equivalents should be considered to be within the scope of the present invention.

100: drying furnace 200: intake and exhaust module
250: cover 300: circulation fan
310: gas discharge flow path 400: buffer unit
410: upper housing 412: inlet
416: outlet 420: lower housing
422: first chamber 424: diaphragm
425: bulkhead 426: second chamber
430 filter module 436 exhaust port
450: condensate discharge line 452: second discharge line
454: first discharge pipe 456: check valve
458: condensate discharge pump 460: steam flow section
461: steam connector 463: steam inlet
465: steam outlet pipe 466: mesh network
470: drain 480: electrolysis device
500: heat exchanger 510: gas suction flow path
550: cooling fan 1000: food processor

Claims (10)

A housing including a first chamber into which exhaust gas generated in a drying furnace of the food processor is introduced, and a second chamber into which water vapor in the first chamber is introduced;
A water vapor flow unit connecting the first chamber and the second chamber, through which water vapor flows in the first chamber; And
A condensate discharge line disposed under the housing to discharge condensate stored in the first and second chambers;
A buffer unit comprising a.
The method of claim 1,
The steam flow section
A water vapor outlet tube disposed to pass through the inside and outside of the second chamber; And
A water vapor connection tube communicating with the first chamber and the water vapor outlet pipe and disposed outside the housing;
A buffer unit comprising a.
The method of claim 1,
A filter module disposed at an upper end of the housing to communicate with the second chamber;
And a water vapor in the second chamber may be discharged to the outside of the housing through the filter module.
The method of claim 1,
The condensate discharge line includes a first discharge line communicating with the first chamber and a second discharge line communicating with the second chamber, wherein a check valve is disposed between the first discharge line and the second discharge line. And a buffer unit.
The method of claim 2,
A buffer unit, characterized in that a mesh network is attached to one end of the steam outlet pipe located in the second chamber.
6. The method of claim 5,
And the mesh network is immersed in condensed water in the second chamber. The method of claim 1,
And a electrolysis device arranged in the first chamber for performing any one or more of sterilization and deodorization of the contained condensate.
A buffer unit according to any one of claims 1 to 7;
A heat exchanger connected to the drying furnace and the buffer unit;
Further comprising:
The exhaust gas generated in the drying furnace is re-introduced into the drying furnace through the first chamber and the heat exchanger of the buffer unit and circulating flow.
The method of claim 8,
The heat exchanger is a food processor, characterized in that the multi-stage cooling is performed by a plurality of columns.
The method of claim 9,
The food processor is
An intake and exhaust module of a circular tube shape disposed on the top of the drying furnace; And
And a circulation fan disposed on the gas discharge passage connecting the drying furnace and the buffer unit.
The intake and exhaust module is a food processor, characterized in that to enable mutual heat exchange of the exhaust gas entering and exiting the drying furnace.

Images