CN107838081A - Internal heater cleaning device - Google Patents

Abstract

The invention relates to a cleaning device for an internal heater. The internal heater is arranged in a boiling pot body. The cleaning device for the internal heater includes a fluid pipeline and a solid cone nozzle. The fluid pipeline extends from a cleaning liquid storage container outside the boiling pot to the boiling pot body. It is used to transport the cleaning liquid contained in the cleaning liquid storage container, and the solid cone nozzle is connected to the end of the fluid pipeline, and is used for spraying the cleaning liquid to clean the internal heater. The inner heater cleaning device of the present invention adopts a solid cone nozzle to replace the traditional fixed cleaning ball, and sprays out fine and uniform water mist through the high impact force of the nozzle. The water mist covers a wide area and can clean all positions of the inner heater. , especially can be washed inside the heat conduction tubes of the tube-and-tube heat exchanger to achieve a good cleaning effect, and the cost is low, which has high market promotion value.

Description

Internal heater cleaning device

technical field

The invention relates to an internal heater cleaning device, in particular to an internal heater cleaning device used in a boiling pot.

Background technique

In the beer production process, wort boiling is an important stage, and it is also a process with very complex physical and chemical changes. During the wort boiling process, the wort boiling time has a great influence on the quality of beer. Boiling under normal pressure, the boiling time of light beer (10%~12%) generally needs to be controlled at 1.5~2h, and the dark beer can be extended appropriately Some; boil under the condition of pressurized 0.11 ~ 0.12MPa, the time can be shortened by about half. Prolonging the boiling time reasonably is beneficial to the coagulation of protein, the improvement of hop utilization and the formation of reducing substances, but it is unfavorable to the foam performance of beer. Excessively prolonging the boiling time is not only economically unreasonable, but also reduces the quality of wort, for example: dark wort color, rough taste, reduced bitterness, poor foam, etc. For light beer, the impact will be more serious.

The heater is the most important heat transfer element in the boiling pot equipment, and it is also the core part of the boiling pot. At present, breweries at home and abroad generally adopt the structure of internal heating, mainly using the tubular internal heater for heating. The internal heater is heated by steam, and under the continuous heating of the steam, the temperature of the wort in the tube is circulated until it boils, so as to finally obtain the ideal wort. The tube-and-tube heat exchanger has the advantages of high evaporation intensity, short boiling time, low steam consumption, and safe and reliable use of equipment. When the juice flows in the tube for a long time, the inner surface of the tube will be fouled, and the tube will be blocked as time goes by.

The Chinese patent document with application number 201010555012.2 provides a mechanical cleaning method for tube heaters to improve labor productivity and production safety. In order to achieve the above purpose, the technology provides the following scheme: a mechanical cleaning method for the tube heater, firstly make a protective device for the high-pressure cleaner, the protective device for the high-pressure cleaner is a bushing, and there is a platform at the lower part of the bushing; When cleaning the tubes of the heater, place the protective device of the high-pressure cleaner on the end of the tubes of the heater, and insert the spray gun nozzle of the cleaning machine into the tubes of the heater through the casing for cleaning. The operator stands around the platform to operate. After cleaning the root tube, take out the spray gun, take out the spray gun and move the protective device of the high-pressure cleaner to the next tube to continue cleaning. The effects and advantages of this invention: (1) the cleaning speed is fast, usually 1-2 minutes to clean a column tube, and the 300 column tubes of the heater need to be cleaned, and generally need 5-10 hours to clean up; (2) short Time cleaning increases the running time of the device; (3) eliminates the long-term safety hazards in the process of using the high-pressure cleaner, and the safety of employees is guaranteed. The mechanical cleaning method of the tube heater provided by the invention has been proved by actual use to achieve the predetermined purpose, and is especially suitable for the mechanical cleaning of the tube heater produced by monoammonium phosphate.

The Chinese patent document with the application number 201420374796.2 provides a wort forced circulation boiling device, including a wort boiling pot, a wort heater is vertically installed in the wort boiling pot, and an umbrella-shaped anti-overflow is installed above the wort heater Cover, the wort boiling pot includes a wort heater, the wort heater includes a wort flow tube and a plurality of heating tubes, a plurality of heating tubes surround and are welded on the outer wall of the wort flow tube, one end of the wort flow tube It is connected with the umbrella-shaped anti-overflow cover, and the other end is connected with the frequency conversion pump provided outside the wort boiling pot. The bottom of the wort boiling pot is connected with multiple circulation pipes, and the multiple circulation pipes are collected and connected with the frequency conversion pump.

By adopting the above technical scheme, the wort boiling pot, frequency conversion pump and multiple circulation pipes form a forced circulation. The frequency conversion pump draws the wort from the wort boiling pot and flows through the circulation pipes. The pump then sends the wort into the wort boiling pot through the wort flow pipe, and finally sprays the wort evenly onto the liquid surface of the wort through the umbrella-shaped overflow guard to complete a cycle process. A plurality of heating tubes are evenly connected on the outer wall of the wort flow tube. When the wort passes through the wort flow tube, the wort can be heated evenly. The wort flow tube is connected with the frequency conversion pump, so the wort has Fast through the heating tube bundle without being coked, steam heater avoids fouling state. The invention further arranges a plurality of fixed cleaning balls in the wort flow pipe, so that by adopting the above technical scheme, after the wort boiling pot completes a batch of production, when it is necessary to clean the residual wort inside the wort flow pipe, the wort flow pipe Some fixed cleaning balls can fully clean the dead corners in the wort flow pipe. However, due to the relatively small strength, coverage, and flow rate of the fixed ball washing spray, the expected cleaning effect is often not achieved.

The Chinese patent document with application number 201510157750.4 provides a tube-and-tube heat exchanger cleaning device to shorten the cleaning time of the tube-and-tube heat exchanger and reduce labor intensity. In order to achieve the above object, the invention adopts the following technical solutions: a tube-and-tube heat exchanger cleaning device, including a tube-and-tube heat exchanger, a cleaning liquid storage tank, a pump, an ultrasonic generator and an ultrasonic transducer, the pump The outlet is connected to the material inlet of the shell and tube heat exchanger through the first connecting pipe, the material outlet of the shell and tube heat exchanger is connected to the cleaning liquid storage tank through the second connecting pipe, and the outlet of the cleaning liquid storage tank is through the third connecting pipe Connect to pump inlet. The ultrasonic transducer is installed on the outer wall of the tube-and-tube heat exchanger, and the ultrasonic transducer is connected with the ultrasonic generator. The heating steam inlet of the tube-and-tube heat exchanger is connected to the steam source, the condensate water outlet of the tube-and-tube heat exchanger is connected to the condensate water tank, and the material inlet of the tube-and-tube heat exchanger is connected to the first The connecting pipe is connected to the material inlet pipe, and the material outlet of the tube-and-tube heat exchanger is connected to the second connecting pipe and the material outlet pipe simultaneously through a tee pipe.

Although the invention has the following beneficial effects: (1) An automatic cleaning device for the tube-and-tube heat exchanger is provided, which is convenient for cleaning, has a high degree of automation, and does not require manual cleaning, which solves the problem of time-consuming cleaning of the traditional tube-and-tube heat exchanger due to manual cleaning. The problem of long time and labor consumption is good, and the cleaning effect is good. (2) The equipment has simple structure, high work efficiency and reasonable structure setting, which is conducive to popularization and use. But because it has adopted ultrasonic transducer and ultrasonic generator, and the cost of ultrasonic transducer and ultrasonic generator is higher, thereby, its cost is higher with respect to common internal heating cleaning device.

Contents of the invention

In order to solve the above problems, the object of the present invention is to provide a cleaning device for an internal heater. The internal heater is arranged in the boiling pot body. The cleaning device for the internal heater includes a fluid pipeline and a solid cone nozzle. The storage container extends into the boiling pot body, and is used to transport the cleaning liquid in the cleaning liquid storage container, and the solid cone nozzle is connected to the end of the fluid pipeline, and is used for spraying the cleaning liquid to clean the internal heater.

Further, the internal heater is a tube-and-tube heat exchanger, and the tube-and-tube heat exchanger includes a plurality of heat-conducting tubes, each heat-conducting tube is axially perpendicular to the inner surface of the bottom wall of the boiling pot body, and the solid cone nozzle and The shell and tube heat exchangers are arranged oppositely.

Preferably, the inner heater includes an upper inner heater and a lower inner heater, and the upper inner heater and the lower inner heater are respectively arranged on the upper and lower parts of the boiling pot body, and the upper inner heater and the lower inner heater are respectively arranged correspondingly. There are solid cone nozzles.

Further, a 1-inch solid cone nozzle is provided above the upper inner heater, and two 3/4-inch solid cone nozzles are arranged above the lower inner heater.

Preferably, the body of the boiling pot is further provided with an umbrella-shaped air guide cover, and the umbrella-shaped air guide cover is located above the inner heater in the upper layer.

Further, solid cone nozzles are respectively provided above and below the umbrella-shaped windshield to clean the upper surface and the lower surface of the umbrella-shaped windshield.

Preferably, a 3/4 inch solid cone nozzle is arranged above the umbrella-shaped shroud, and a 1/2 inch solid cone nozzle is arranged below it.

Further, a turbulent body is provided inside the solid cone nozzle.

Preferably, the turbulent body includes a plurality of rotating blades arranged along the circumference, and a swirl channel is formed between every two rotating blades.

Furthermore, one end of the solid cone nozzle is provided with an internal thread, and the internal thread engages with the external thread at the end of the fluid pipeline, thereby fixing the solid cone nozzle to the end of the fluid pipeline.

In summary, the internal heater cleaning device of the present invention uses a solid cone nozzle to replace the traditional fixed cleaning ball, and sprays fine and uniform water mist through the high impact force of the nozzle. The water mist covers a wide area and can clean the inner heater. All positions, especially the inside of the heat conduction tubes of the tube-and-tube heat exchanger, can be washed to achieve a good cleaning effect, and the cost is low, which has high market promotion value.

In order to make the above content of the present invention more comprehensible, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of an internal heater cleaning device in an embodiment of the present invention;

Fig. 2 is a top view of the shell and tube heat exchanger in the embodiment of the present invention;

3 is a schematic diagram of the overall structure of the large-flow solid cone nozzle in the embodiment of the present invention;

Fig. 4 is a schematic diagram of the overall structure of the turbulent body in the embodiment of the present invention.

Detailed ways

The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be presented in conjunction with a preferred embodiment, it does not mean that the features of the invention are limited to this embodiment. On the contrary, the purpose of introducing the invention in conjunction with the embodiments is to cover other options or modifications that may be extended based on the claims of the present invention. The following description contains numerous specific details in order to provide a thorough understanding of the present invention. The invention may also be practiced without these details. Also, some specific details will be omitted from the description in order to avoid obscuring or obscuring the gist of the present invention.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In addition, "upper", "lower", "left", "right", "top", and "bottom" used in the following description should not be construed as limiting the present invention.

As shown in Fig. 1, a kind of internal heater cleaning device provided by the present invention, internal heater 2 is arranged in the boiling pot body 1, and internal heater cleaning device comprises fluid pipeline 3 and solid cone nozzle 4, and fluid pipeline 3 automatically The cleaning liquid storage container outside the boiling pot body 1 extends into the boiling pot body 1 for delivering the cleaning liquid. The solid cone nozzle 4 is connected to the end of the fluid pipeline 3 for spraying the cleaning liquid to clean the inner heater 2 .

The solid cone nozzle 4 can produce a spray with uniform distribution and medium to large droplet size under a wide range of flow rates and pressures, which can play an excellent role in jet flow applications that require complete coverage of an area. Therefore, using the internal heater cleaning device composed of the fluid pipeline and the solid cone nozzle to clean the internal heater in the boiling pot body can achieve a good cleaning effect.

Further, the internal heater 2 of the present embodiment includes an upper internal heater 21 and a lower internal heater 22, the upper internal heater 21 and the lower internal heater 22 are respectively arranged on the upper and lower parts of the boiling pot body 1, and the upper internal heater A solid cone nozzle 4 is respectively arranged above the heater 21 and the heater 22 in the lower layer. The specifications of the solid cone nozzle 4 can include 1/4, 3/8, 1/2, 3/4, 1, 1 1/4, 1 1/2, 2, 2 1/2, 3 inches. As shown in Figure 1, in order to obtain a better cleaning effect in this embodiment, preferably, a 1-inch solid cone nozzle is set above the upper inner heater 21, and two 3-inch nozzles are set above the lower inner heater 22. /4-inch solid cone nozzles, where the spray angle of each solid cone nozzle is generally determined according to the cleaning flow, cleaning coverage, and the distance between the cleaning nozzle and the object to be cleaned. The nozzle angle can be 60°, 90°, 110° °, 120°, 150°, 170°, etc.

More specifically, as shown in Figure 2, the internal heater 2 can be a tube-and-tube heat exchanger, which has the advantages of high evaporation intensity, short boiling time, low steam consumption, and safe and reliable use of equipment. . The tube-and-tube heat exchanger in this embodiment includes a plurality of heat-conducting tubes 23, and each heat-conducting tube 23 is axially perpendicular to the inner surface of the bottom wall of the boiling pot body 1, and the solid cone nozzle 4 can be arranged on the heat-conducting column Above the tube 23, and at a certain height from the heat-conducting tubes 23, the height can be set according to the specifications of the solid cone nozzle, the spray angle of the solid cone nozzle, the area of the tube-and-tube heat exchanger and other factors.

The boiling pot body 1 is also provided with an umbrella-shaped air guide 5, and the umbrella-shaped air guide 5 is positioned above the heater 21 in the upper layer. The umbrella-shaped air guide 5 makes the liquid (such as wort) above it along its tangential direction. Powerful spraying around, on the one hand, increases the evaporation surface and speeds up the evaporation of water; on the other hand, effectively inhibits the generation of foam and can eliminate foam. Further, solid cone nozzles are respectively provided above and below the umbrella-shaped air guide 5 to clean the upper surface and the lower surface of the umbrella-shaped air guide 5 . Preferably, in this embodiment, a 3/4 inch solid cone nozzle can be arranged above the umbrella-shaped shroud 5, and a 1/2 inch solid cone nozzle can be arranged below.

Wherein, the fluid pipeline 3 can comprise a plurality of pipelines, as shown in Figure 1, the fluid pipeline 3 comprises a first pipeline 31 and a second pipeline 32, and the first pipeline 31 extends to the inner surface and the inner heater close to the boiling pot body 1 2, used to wash the inner surface of the boiling pot body 1 and the outside of the inner heater 2, the end of the first pipeline 31 can be installed with a solid cone nozzle as in this embodiment, or a traditional fixed cleaning method can be installed ball for cleaning. The second pipeline 32 includes a plurality of branches, which respectively extend to the top and bottom of the umbrella-shaped shroud 5, and the top of the upper inner heater 21 and the lower inner heater 22, and are arranged according to the coverage to be cleaned. The connecting head of the solid cone nozzle, as shown in accompanying drawing 1, present embodiment preferably, a connecting head is set respectively above and below the umbrella-shaped shroud 5, and a connecting head is set above the upper inner heater 21 Two connecting heads are arranged above the heater 22 in the lower layer at the same time, and these connecting heads are used for fixedly installing the solid cone nozzle 4 respectively.

More specifically, the solid cone nozzle 4 can be a general-purpose, large-flow or super-large-diameter solid cone nozzle. As shown in Figure 3, a large-flow solid cone nozzle is used in the embodiment of the present invention, and the spray particles are fine and dense. , It can also guarantee a good spray effect under low pressure. Further, the upper end 41 of the solid cone nozzle 4 is provided with an internal thread, and the internal thread engages with the external thread at the end of the fluid pipe 3 , thereby fixing the solid cone nozzle to the end of the fluid pipe 3 .

Furthermore, as shown in accompanying drawing 4, a turbulent body 6 is provided inside the solid cone nozzle, and the turbulent body 6 includes a plurality of rotating blades 61 arranged along the circumference. Preferably, the number of rotating blades in this embodiment The number is six, and a swirl channel is formed between every two rotating blades 61 . The rotating blade 61 has a radial rectification structure, which can not only effectively overcome the occurrence of turbulent flow, but also smoothly split the fluid, and the liquid after the split flows into the nozzle quickly through the six slope-shaped swirl channels on the periphery of the rotating blade 61 Inside, high-speed swirl and impact are generated to atomize the liquid evenly. The working principle of the solid cone nozzle is to use the reaction force of the rotating blade 61 to spray water away, and the rotating blade 61 can also make the pressurized fluid generate high-speed swirl and atomization, and when the fluid leaves the nozzle mouth , the centrifugal force of the fluid can cause the fluid to be thrown out along the tangential direction of the nozzle, thus forming a solid cone spray effect. The solid conical nozzle 4 is generally manufactured by integral casting.

Further, a pump is provided outside the boiling pot body 1 , and the pump provides power for the delivery of the cleaning liquid in the fluid pipeline 3 .

In summary, the internal heater cleaning device provided by the present invention uses a solid cone nozzle to replace the traditional fixed cleaning ball, and sprays fine and uniform water mist through the high impact force of the nozzle. The water mist covers a wide area and can be cleaned to All positions of the internal heater, especially the inside of the heat-conducting tubes of the tube-and-tube heat exchanger, can be washed to achieve a good cleaning effect, and the cost is low, which has high market promotion value. The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention should still be covered by the claims of the present invention.

Claims (10)

1. A kind of inner heater cleaning device, described inner heater is arranged in boiling pot body, is characterized in that, comprises fluid pipeline and solid cone nozzle, and described fluid pipeline extends from the cleaning liquid storage container outside described boiling pot body to The body of the boiling pot is used to transport the cleaning liquid contained in the cleaning liquid storage container, and the solid cone nozzle is connected to the end of the fluid pipeline, and is used to spray the cleaning liquid to clean the internal heater. Clean up. 2. The internal heater cleaning device according to claim 1, wherein the internal heater is a tube-and-tube heat exchanger, and the tube-and-tube heat exchanger includes a plurality of heat-conducting tubes, each of which The axial direction of the heat-conducting tubes is perpendicular to the inner surface of the bottom wall of the boiling pot body, and the solid cone nozzle is arranged opposite to the tube-and-tube heat exchanger. 3. The internal heater cleaning device according to claim 2, wherein the internal heater comprises an upper internal heater and a lower internal heater, and the upper internal heater and the lower internal heater are respectively arranged In the upper and lower parts of the boiling pot body, the upper inner heater and the lower inner heater are respectively provided with the solid cone nozzles. 4. The internal heater cleaning device as claimed in claim 3, wherein a 1-inch solid cone nozzle is provided above the upper internal heater, and two 3/4-inch nozzles are provided above the lower internal heater. 4 inch solid cone nozzle. 5 . The internal heater cleaning device according to claim 3 , wherein an umbrella-shaped air guide is further provided in the boiling pot, and the umbrella-shaped air guide is located above the upper inner heater. 6 . 6. The internal heater cleaning device as claimed in claim 5, wherein a solid cone nozzle is respectively provided above and below the umbrella-shaped air guide, so as to clean the upper surface and the lower surface of the umbrella-shaped air guide. Clean the lower surface. 7. The internal heater cleaning device according to claim 6, wherein a 3/4 inch solid cone nozzle is arranged above the umbrella-shaped shroud, and a 1/2 inch solid cone nozzle is arranged below. 8. The internal heater cleaning device according to any one of claims 1-7, wherein a turbulent body is provided inside the solid cone nozzle. 9 . The internal heater cleaning device according to claim 8 , wherein the turbulent body comprises a plurality of rotating blades arranged along the circumference, and a swirling channel is formed between every two rotating blades. 10. The internal heater cleaning device according to claim 8, wherein one end of the solid cone nozzle is provided with an internal thread, and the internal thread is engaged with the external thread at the end of the fluid pipeline, so that the The solid cone nozzle is fixed to the end of the fluid conduit.