Roof spray cooling system for brewery

Abstract

This utility model provides a roof spray cooling system for a brewing workshop, comprising several workshop roofs of varying heights. Sprayers are fixedly installed at the arched tops of the workshop roofs, and water inlets are fixedly installed at the side eaves of the workshop roofs. The drain holes of the water inlets are fixedly connected to the inlets of the drain pipes. The other end of the drain pipes is fixedly connected to the inlet pipes on the upper side wall of the return water tank. The outlet pipe at the bottom of the side wall of the return water tank is connected to the inlet of the sprayers through the return water pipes. A circulation pump is installed at the connection between the return water pipes and the outlet pipes at the bottom of the side wall of the return water tank to transport water from the return water tank to the sprayers. Beneficial effects: (1) Spray cooling blocks heat transfer; (2) The varying heights are well-matched, cooling is thorough, and microorganisms are well enriched; (3) The entire system has water circulation, improving water resource utilization; (4) Graded filtration protection extends equipment life; (5) Dual temperature sensors work together to control cooling more accurately; (6) Rainwater level linkage ensures safety.

Description

Technical Field

[0001] This utility model belongs to the technical field of equipment related to brewing process, and in particular relates to a roof spray cooling system for brewing workshops. Background Technology

[0002] In the brewing industry, especially in traditional solid-state fermentation brewing processes, the ambient temperature of the workshop is one of the core factors affecting the quality of fermentation mash. The activity and metabolic efficiency of beneficial microorganisms such as yeast and mold in the mash are extremely sensitive to temperature. The optimal fermentation temperature range is strictly controlled between 18-28℃. Too high a temperature will lead to inhibition of microbial activity, metabolic disorders, and the production of undesirable byproducts such as fusel oils, reducing the flavor and quality of the base liquor. Too low a temperature will slow down the fermentation rate, prolong the production cycle, and may even cause fermentation to stop.

[0003] Currently, most brewing workshops in China use semi-open iron roofs. This roof structure combines ventilation and cost advantages, allowing beneficial microorganisms naturally accumulated within the workshop to fully contact the fermented mash, meeting the traditional brewing process's requirement for natural microbial participation in fermentation. However, during the hot summer months, the surface temperature of the iron roof often rises above 60°C due to solar radiation. Because of the high thermal conductivity of iron, a large amount of heat is conducted into the workshop through the roof, causing the internal temperature to generally exceed 35°C, far exceeding the optimal fermentation temperature range. This becomes a key bottleneck restricting the quality and efficiency of brewing in summer.

[0004] To address the issue of high temperatures in workshops caused by heat conduction from the roof, the industry has attempted various cooling solutions, but all have significant drawbacks, failing to balance cooling effectiveness, process adaptability, cost, and safety. For example: (1) Shade canopy covering scheme: Although the roof temperature can be reduced to a certain extent by building a sunshade canopy above the roof to block solar radiation, there are three major problems: First, the sunshade canopy needs to be fixed to the roof with additional brackets, which increases the structural load on the roof of the factory. Long-term use can easily lead to fatigue deformation of the roof load-bearing components, affecting the structural safety of the factory; Second, the initial installation cost and subsequent maintenance cost are high, which is difficult for small and medium-sized brewing enterprises to bear; Third, under extreme weather conditions (such as strong typhoons and blizzards), the sunshade canopy is easily blown over or crushed by the wind, which poses a hidden danger of damaging workshop equipment and endangering the safety of operators.

[0005] (2) Indoor air conditioning cooling solution: Although installing central air conditioning or industrial air conditioning in the workshop can quickly lower the indoor temperature to the fermentation zone, it seriously conflicts with the process requirements of a semi-open brewing workshop. The air conditioning requires the workshop doors and windows to be completely closed to ensure cooling efficiency. However, the closed environment will cut off the air circulation between the workshop and the outside, which will prevent the brewing functional bacteria in the workshop from being naturally replenished and renewed, reduce the diversity of the bacteria, and thus affect the flavor complexity of the fermented mash. The micro-ecology on which traditional brewing depends is destroyed, and the base liquor loses its unique regional flavor characteristics. In addition, the purchase cost of air conditioning equipment in large-area workshops is high, and the power consumption for continuous 24-hour operation in summer is extremely high, resulting in high operating costs, which does not meet the industry's development needs for energy conservation and cost reduction.

[0006] In addition to the two mainstream solutions mentioned above, a few companies have tried roof spraying for cooling, but they lack a systematic water circulation and recycling design, resulting in serious water waste. Other companies have used roof coating with reflective paint, but its cooling effect is limited, and the paint is easily washed away by rain and exposed to ultraviolet radiation, causing it to age and peel off, requiring annual recoating and complicated maintenance.

[0007] In summary, existing roof cooling solutions for brewing workshops all have significant shortcomings. The industry urgently needs a cooling technology that can effectively block heat conduction from the roof and reduce workshop temperature, while also meeting the microbial enrichment requirements of semi-open workshops, and is cost-effective and safe, in order to solve the problem of high summer temperatures restricting brewing fermentation. Summary of the Invention

[0008] To address the problems in the prior art, this utility model provides a roof spray cooling system for a brewing workshop, comprising several staggered workshop roofs. Sprayers are fixedly installed at the arched tops of the workshop roofs, and water inlets are fixedly installed at the side eaves of the workshop roofs. The drain holes of the water inlets are fixedly connected to the inlets of a drain pipe. The other end of the drain pipe is fixedly connected to the inlet pipe on the upper part of the side wall of the return water tank. The outlet pipe at the bottom of the side wall of the return water tank is connected to the inlet of the sprayers via a return water pipe. A circulation pump is installed at the connection between the return water pipe and the outlet pipe at the bottom of the side wall of the return water tank to transport water from the return water tank to the sprayers.

[0009] In a preferred embodiment, a primary filter screen is provided at the drain hole of the water inlet trough.

[0010] In a preferred embodiment, a filter is provided on the inlet pipe on the upper side wall of the return water tank.

[0011] In a preferred embodiment, a first temperature sensor is provided on the arc top of the workshop roof, and a rainwater sensor is provided on the edge of the arc top.

[0012] In a preferred embodiment, a second temperature sensor is installed at the internal crossbeam of the workshop roof.

[0013] In a preferred embodiment, the return water tank is equipped with a level gauge on its side wall and a water supply pipe on its top. The water supply pipe is supplied by an external water source. The level gauge is used to monitor the water level in the return water tank and control the start and stop of the water supply pipe.

[0014] In a preferred embodiment, the upper side wall of the return water tank is also provided with an overflow pipe, which is connected to the drainage system within the factory area.

[0015] In a preferred embodiment, the return water pipe is also connected in parallel with a drain pipe, which is equipped with a drain valve and is connected to the drainage system within the factory area.

[0016] In a preferred embodiment, the top height of the return water tank is lower than the bottom height of the water inlet trough.

[0017] In a preferred embodiment, the workshop roof is a corrugated structure, which helps to enhance heat dissipation and guide water flow to the water inlet.

[0018] The beneficial effects of this utility model are: (1) The nozzles at the arched top of the workshop roof can spray water mist evenly onto the iron roof surface, forming a continuous water film on the roof surface. On the one hand, the heat on the roof surface is directly removed through the evaporation of water. The cooling efficiency of water vaporization is 3-5 times that of a sunshade, reducing the roof surface temperature from above 60℃ to 32-37℃ in summer. On the other hand, the heat insulation layer formed by the water film can block the direct heating of the roof by solar radiation and reduce the penetration of heat into the interior of the roof. Through this dual effect, the heat conduction of the iron roof is greatly reduced, and the temperature inside the workshop can be stably controlled below 37℃, effectively avoiding problems such as inhibition of microbial activity and excessive fusel oil caused by high temperature, and improving the qualification rate of base wine in summer. (2) In view of the staggered layout of the workshop roof, the nozzles are installed on the arched tops of each roof, and the water flow can cover the entire roof surface. At the same time, the corrugated roof design not only enhances the heat dissipation area, but also guides the water flow to flow evenly along the corrugated grooves, avoiding local water accumulation or missed spraying, ensuring that all roof areas are effectively cooled without any cooling dead corners. In addition, the staggered roof forms a ventilation structure, which is also conducive to the enrichment of microorganisms in the workshop. (3) The water after spraying is collected along the corrugated structure of the roof to the water channel of the side eaves, and flows into the return water tank through the drain pipe; the water in the return water tank is pressurized by the circulation pump and then transported to the nozzle again through the return water pipe, forming a closed-loop water cycle of spraying, collection, recycling and re-spraying. Compared with manual watering, the water resource utilization rate of this system is improved, the average daily water consumption of the workshop in summer is greatly reduced, and the water resource cost is significantly reduced. (4) The primary filter screen of the water inlet of the water inlet can intercept large particles of impurities in the water flow, and the filter of the inlet pipe of the return water tank further filters fine particles, avoiding impurities from clogging the nozzles or wearing out the circulation pump, reducing the frequency of equipment maintenance and lowering maintenance costs. (5) The first temperature sensor on the roof arc monitors the roof surface temperature, and the second temperature sensor on the crossbeam inside the workshop monitors the indoor temperature. When the roof temperature is ≥45℃ or the indoor temperature is ≥28℃, the system automatically starts the circulating pump and spraying. When the indoor temperature drops below 25℃, the spraying automatically stops to avoid excessive cooling and energy waste, and realizes intelligent control of cooling on demand. (6) The rain sensor identifies the rainfall status and automatically stops the spraying when it rains to prevent the return water tank from overflowing due to rainwater. At the same time, it uses natural rainfall to assist in cooling and further save energy. The level gauge monitors the liquid level of the return water tank in real time. When the liquid level is too low, it automatically opens the water supply pipe to supplement the external water source. When the liquid level is too high, it is discharged to the factory drainage system through the overflow pipe. When the liquid level is continuously too high, the circulation pump can also be started to accelerate the discharge of water in the return water tank to the factory drainage system, so as to avoid the water tank being short of water, causing the circulation pump to run dry or overflowing, resulting in water waste. The top of the return water tank is lower than the bottom of the water inlet trough, ensuring that the water can flow into the return water tank naturally by gravity without additional power and avoiding the risk of backflow. The overall structure has no increased load and no safety hazards. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a top view of the workshop roof in this utility model.

[0021] In the diagram: 1. Workshop roof; 2. Sprinkler head; 3. Water inlet trough; 4. Drain pipe; 5. Return water tank; 6. Overflow pipe; 7. Return water pipe; 8. First temperature sensor; 9. Rain sensor; 10. Circulation pump; 11. Drain pipe; 12. Drain valve; 13. Level gauge; 14. Water supply pipe; 15. Filter; 16. Second temperature sensor. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] Example like Figure 1-2 The brewing workshop roof sprinkler cooling system shown includes several workshop roofs 1 of varying heights. Sprinklers 2 are fixedly installed at the arched top of each workshop roof 1. Water inlet troughs 3 are fixedly installed at the side eaves of each workshop roof 1. The drain hole of the water inlet trough 3 is fixedly connected to the inlet of the drain pipe 4. The other end of the drain pipe 4 is fixedly connected to the inlet pipe at the upper part of the side wall of the return water tank 5. The outlet pipe at the bottom of the side wall of the return water tank 5 is connected to the inlet of the sprinkler 2 through a return water pipe 7. A circulation pump 10 is installed at the connection between the return water pipe 7 and the outlet pipe at the bottom of the side wall of the return water tank 5, which is used to transport water in the return water tank 5 to the sprinkler.

[0024] The above-mentioned nozzle 2 is a rotating and scattering dual-mode nozzle for lawns (spray radius adjustable from 3 to 8 meters), with a water flow refraction plate design, a controllable atomization rate of 30%-70%, and an anti-clogging filter (pore size ≤ 0.5 mm). By using the rotating and scattering dual-mode nozzle for lawns, nozzle 2 is only installed on the high-level workshop roof 1, reducing the number of nozzles 2 and reducing procurement costs.

[0025] Furthermore, the water inlet of the water channel 3 is provided with a primary filter screen, which is made of stainless steel and has a pore size of ≤1mm.

[0026] Furthermore, a filter 15 is provided on the inlet pipe on the upper side wall of the return water tank 5. The filter is a Y-type filter with a filter element pore size ≤0.5mm.

[0027] Furthermore, a first temperature sensor 8 is provided on the arc top of the workshop roof 1, and a rain sensor 9 is provided on the edge of the arc top. The rain sensor 9 is located at the edge and its sensitivity is adjusted to the maximum to prevent the water mist sprayed by the nozzle 2 from causing misjudgment. The first temperature sensor 8 monitors the temperature of the roof. When the temperature of the roof is ≥45℃, the control system starts the circulation pump 10 to start spraying water mist to cool down.

[0028] Furthermore, a second temperature sensor 16 is installed on the internal crossbeam of the workshop roof 1 to monitor the temperature inside the workshop. When the temperature inside the workshop is ≥28℃, the control system starts the circulation pump 10 to spray water mist to cool down.

[0029] Furthermore, the side wall of the return water tank 5 is equipped with a level gauge 13, and the top is equipped with a water supply pipe 14. The water source of the water supply pipe 14 comes from an external water source, such as the factory's tap water pipe. The level gauge 13 is used to monitor the liquid level in the return water tank 5 and control the start and stop of the water supply pipe.

[0030] Furthermore, the upper side wall of the return water tank 5 is also provided with an overflow pipe 6, which is connected to the drainage system in the factory area.

[0031] Furthermore, the return water pipe 7 is also connected in parallel to a drain pipe 11, which is equipped with a drain valve 12 and is connected to the drainage system within the factory area.

[0032] Furthermore, the top height of the return water tank 5 is lower than the bottom height of the water inlet trough 3, ensuring that the water can flow into the return water tank naturally by gravity. Preferably, the return water tank 5 is set in the factory area drainage ditch, where the temperature is low, which is conducive to cooling the circulating water and facilitates the discharge of excess water.

[0033] Furthermore, the workshop roof 1 has a corrugated structure, which helps to enhance heat dissipation and guide water flow to the water channel 3.

[0034] The operation process of the above system is as follows: First, preset the core threshold in the control system: Cooling start threshold: When the first temperature sensor 8 detects that the roof surface temperature is ≥45℃ or the second temperature sensor 16 detects that the workshop interior temperature is ≥28℃, the system will automatically start the spraying. Cooling stop threshold: When the internal temperature of the workshop drops below 25℃, the system will automatically stop spraying; Liquid level control threshold: When the liquid level in the return water tank 5 is below 1 / 3, the water supply pipe 14 automatically opens to supply water; when the liquid level is above 4 / 5, the overflow pipe 6 automatically drains water; when the liquid level continues to be above 4 / 5, the circulation pump 10 is started and the drain valve 12 on the drain pipe 11 is opened to accelerate the discharge of water from the return water tank 5. Rainfall linkage threshold: When the rain sensor 9 detects rainfall of ≥10mm / h (which is considered moderate rainfall), the system automatically stops the sprinkler system and prioritizes natural rainfall for cooling.

[0035] When the first temperature sensor 8 detects that the roof surface temperature is ≥45℃ or the second temperature sensor 16 detects that the workshop interior temperature is ≥28℃, the system automatically starts the circulation pump 10, and the water in the return water tank 5 (initially clean water replenished by the water supply pipe) is delivered to the nozzles 2 on the roof arch. The nozzles 2 spray in a fan shape, forming a continuous and uniform water film on the surface of the corrugated workshop roof 1. The water film absorbs the roof heat through evaporation on the one hand, and blocks the direct heating of the roof by solar radiation on the other hand, reducing heat conduction.

[0036] After spraying, the water flow is guided by gravity and the roof corrugations, and gathers along the roof surface to the water inlet trough 3 on the side eaves. After passing through the primary filter screen at the drain hole of the water inlet trough 3 (intercepting large particles of impurities such as leaves and roof rust), the water flows naturally into the return water tank 5 through the drain pipe 4. Before entering the return water tank, the water needs to pass through the filter 15 on the inlet pipe (finely filtering fine mud and impurities in the water) to prevent impurities from entering the circulation pump 10 or clogging the nozzle 2.

[0037] The filtered water is temporarily stored in the return water tank 5, and then transported back to the nozzle by the circulation pump 10, forming a closed-loop process of spraying, collecting, filtering and circulating.

Claims

1. A brewing workshop roof spray cooling system, comprising a plurality of high and low staggered workshop roofs (1), characterized in that, A nozzle (2) is fixedly installed at the top of the arc of the workshop roof (1), and a water inlet trough (3) is fixedly installed at the side eaves of the workshop roof (1). The water outlet of the water inlet trough (3) is fixedly connected to the inlet of the drain pipe (4). The other end of the drain pipe (4) is fixedly connected to the inlet pipe at the top of the side wall of the return water tank (5). The outlet pipe at the bottom of the side wall of the return water tank (5) is connected to the inlet of the nozzle (2) through the return water pipe (7). A circulation pump (10) is installed at the connection between the return water pipe (7) and the outlet pipe at the bottom of the side wall of the return water tank (5) to transport the water in the return water tank (5) to the nozzle.

2. The roof spray cooling system for a brewing workshop according to claim 1, characterized in that, The water inlet (3) is equipped with a primary filter screen at the drain hole.

3. The brewhouse roof sprinkler cooling system of claim 1, wherein, A filter (15) is provided on the inlet pipe on the upper side wall of the return water tank (5).

4. The brewhouse roof sprinkler cooling system of claim 1, wherein, The workshop roof (1) is equipped with a first temperature sensor (8) on the arc top and a rain sensor (9) on the edge of the arc top.

5. The brewhouse roof sprinkler cooling system of claim 1, wherein, A second temperature sensor (16) is provided at the internal crossbeam of the workshop roof (1).

6. The brewhouse roof sprinkler cooling system of claim 1, wherein, The return water tank (5) is equipped with a level gauge (13) on its side wall and a water supply pipe (14) on its top. The water source of the water supply pipe (14) comes from an external water source. The level gauge (13) is used to monitor the liquid level in the return water tank (5) and control the start and stop of the water supply pipe.

7. The brewhouse roof sprinkler cooling system of claim 1, wherein, The upper side wall of the return water tank (5) is also provided with an overflow pipe (6), which is connected to the drainage system in the factory area.

8. The brewhouse roof sprinkler cooling system of claim 1, wherein, The return water pipe (7) is also connected in parallel with a drain pipe (11), and a drain valve (12) is provided on the drain pipe (11). The drain pipe (11) is connected to the drainage system in the factory area.

9. The brewhouse roof sprinkler cooling system of claim 1, wherein, The top height of the return water tank (5) is lower than the bottom height of the water inlet tank (3).

10. The roof spray cooling system for a brewing workshop according to claim 1, characterized in that, The workshop roof (1) is a corrugated structure, which is conducive to enhancing heat dissipation and guiding water flow to the water inlet trough (3).

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