CN205339900U - Low -temperature cold store fume extractor - Google Patents
Low -temperature cold store fume extractor Download PDFInfo
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- CN205339900U CN205339900U CN201521054601.7U CN201521054601U CN205339900U CN 205339900 U CN205339900 U CN 205339900U CN 201521054601 U CN201521054601 U CN 201521054601U CN 205339900 U CN205339900 U CN 205339900U
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Abstract
The utility model discloses a low -temperature cold store fume extractor, including smoke exhaust fan, smoke exhaust fan's air -out end and smoke exhaust fan air -out union coupling, smoke exhaust fan's air inlet end is connected with smoke exhaust fan air -supply line one end through the fire prevention valve of discharging fume, the smoke exhaust fan air -supply line other end is connected with the static pressure case of discharging fume, movable exhaust port has been seted up at the freezer top, the activity exhaust port is connected with the movable board of discharging fume through the loose -leaf, activity exhaust port and movable the the opening and shutting between the board of discharging fume are controlled by electronic opening device, the activity exhaust port and the static pressure case intercommunication of discharging fume, activity exhaust port and activity are discharged fume and are provided with control by temperature change sealing device between the board. The utility model provides a regional design method that discharges fume of normal atmospheric temperature be applied to a series of problems that the low -temperature cold store caused, reach anti cold bridge and combining of discharging fume, the investment is low, the reliability is high, easily popularizes. But wide application in food processing and storage, the low temperature storage and the freezer of links such as logistics distribution. The application demand that has certain application prospect and reality.
Description
Technical field
This utility model relates to low-temperature cold store fire control smoke exhausting field, particularly relates to low-temperature cold store smoke extractor.Fire control smoke exhausting suitable in industries such as the fowl poultry kind production and processing storage vaults such as Cold Chain Logistics freezer, pig, cattle and sheep chicken and duck, processing of aquatic products storage vault, fruit and vegerable agricultural products processing storage vaults.
Background technology
Along with the sustainable development of national economy, improving constantly of living standards of the people, country is to the attention of food safety and continually strengthens.For the trans-regional allocation and transportation ensureing food quality, extend effective period of food quality, realize between different food products kind, the links such as low-temperature cold store is more and more applied to food processing and storage, logistics distribution.But from the angle of fire-fighting, food is substantially all and belongs to flammable solid, the classification of fire hazards producing and storing is Class C.According to China's relevant fire specification, Class C processing Factory Building and storehouse exceed certain area and are necessary for design fire-fighting smoke exhaust system.The smoke exhaust method in room temperature region is applied to low-temperature cold store, just may create the problem that 1) cold bridge is through, the solidifying frost knot of exhaust opening；2) smoke exhaust fire damper valve block freezes stuck, it is impossible to open smoke evacuation；3) freeze between smoke exhaust fan blade and spiral case stuck, it is impossible to operating smoke evacuation.Cause that cold storage locker temperature is unable to maintain that, insulation failure；Smoke evacuation system is malfunctioning, cannot start smoke evacuation during fire.The problem causing freezer operation maintenance aspect on the one hand, can not reach the purpose of fire control smoke exhausting on the other hand.For that purpose it is necessary to the smoke exhaust method to room temperature region, improved according to the actual motion feature of low-temperature cold store, stop and take precautions against cold bridge, it is ensured that exhaust opening, smoke exhaust fire damper and smoke exhaust fan can be opened as required at any time.This low-temperature cold store smoke extractor successfully solves the smoke exhaust method in room temperature region and is applied to the series of problems that low-temperature cold store causes, and reaches the combination of cold-prevention bridge and smoke evacuation, invests low, and reliability is high, it is easy to popularize.
Utility model content
The purpose of this utility model is the problems referred to above existed for prior art, it is proposed to low-temperature cold store smoke extractor.Simple in construction, uses reliable, reaches the combination of cold-prevention bridge and smoke evacuation, invest low.Can be widely applied to the fire control smoke exhausting of the low-temperature cold stores such as the fowl poultry kind production and processing storage vault such as Cold Chain Logistics freezer, pig, cattle and sheep chicken and duck, processing of aquatic products storage vault, fruit and vegerable agricultural products processing storage vault.This utility model passes through movable rows mouth, temperature control sealing device, solves that cold bridge is through and movable rows mouth freezes stuck；Solved by plenum chamber of discharging fume to freeze stuck problem between the valve block of smoke exhaust fire damper and the blade of smoke exhaust fan 1 and spiral case, it is ensured that under cold environmental conditions, cold storage locker temperature is controlled, the safe and reliable operation of smoke evacuation system.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
Low-temperature cold store smoke extractor, including smoke exhaust fan, the outlet air end of smoke exhaust fan is connected with smoke exhaust fan discharge pipe, the air intake of smoke exhaust fan is connected with smoke exhaust fan blast pipe one end by smoke exhaust fire damper, the smoke exhaust fan blast pipe other end is connected with smoke evacuation plenum chamber, movable rows mouth is opened in freezer top, movable rows mouth is connected to movable smoke evacuation plate by loose-leaf, folding between movable rows mouth and movable smoke evacuation plate is by electric open device control, movable rows mouth connects with smoke evacuation plenum chamber, it is provided with temperature control sealing device between movable rows mouth and movable smoke evacuation plate.
Temperature control sealing device as above includes heating and attemperating unit and sealing device, and sealing device is the rubber packing bar with cavity；Attemperating unit includes resistive heater, temperature sensor and temperature controller, hot water radiation wire and temperature sensor and is connected with temperature controller respectively, and resistive heater and temperature sensor are arranged in the cavity of rubber packing bar.
Rubber packing bar as above is arranged on movable smoke evacuation plate and movable rows mouth contact portion.
This utility model has the advantages that relative to prior art
1) the smoke exhaust method in room temperature region is improved according to the actual motion feature of low-temperature cold store, stop and take precautions against cold bridge, it is ensured that movable rows mouth, smoke exhaust fire damper and smoke exhaust fan can be opened as required at any time.2) heating and attemperating unit make temperature-controllable in rubber bar cavity, according to design temperature bound automatic power or power-off, the empty cavity temperature of guarantee rubber packing hollow is 2.5 ± 2.5 DEG C, both cold bridge had been completely cut off, take precautions against again solidifying frost knot between movable rows mouth and surrounding freezer top board, reduce the cold heat transfer losses between storehouse body and rubber packing bar.3) smoke evacuation plenum chamber is as smoke evacuation system and the transformed space being connected in freezer, further enhances the cold-prevention bridge insulating effect of movable rows mouth, guarantees that smoke evacuation system is properly functioning under the normal temperature environment directly not contacted with freezer space simultaneously.4) this utility model simple in construction, easy to use, movable rows mouth starts reliable, invests low, and safety is high.
Accompanying drawing explanation
Fig. 1: for low-temperature cold store smoke extractor site plan；
Fig. 2: for low-temperature cold store smoke extractor side cutaway view.
In figure: 1-smoke exhaust fan；2-smoke exhaust fire damper；3-smoke exhaust fan blast pipe；4-discharges fume plenum chamber；5-movable rows mouth；6-temperature control sealing device；7-electric open device；8-activity smoke evacuation plate；9-hinge；10-smoke exhaust fan discharge pipe；11-freezer internal wall insulation wallboard；12-freezer peripheral structure.
Detailed description of the invention
By the examples below, and in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail.
As shown in Fig. 1～2, low-temperature cold store smoke extractor, including smoke exhaust fan 1, the outlet air end of smoke exhaust fan 1 is connected with smoke exhaust fan discharge pipe 10, the air intake of smoke exhaust fan 1 is connected with smoke exhaust fan blast pipe 3 one end by smoke exhaust fire damper 2, smoke exhaust fan blast pipe 3 other end is connected with smoke evacuation plenum chamber 4, movable rows mouth 5 is opened in freezer top, movable rows mouth 5 is connected to movable smoke evacuation plate 8 by loose-leaf, folding between movable rows mouth 5 and movable smoke evacuation plate 8 is controlled by electric open device 7, movable rows mouth 5 connects with smoke evacuation plenum chamber 4, it is provided with temperature control sealing device 6 between movable rows mouth 5 and movable smoke evacuation plate 8.
Temperature control sealing device 6 includes heating and attemperating unit and sealing device, and sealing device is the rubber packing bar with cavity；Heating and attemperating unit include resistive heater, temperature sensor and temperature controller, hot water radiation wire and temperature sensor and are connected with temperature controller respectively, and resistive heater and temperature sensor are arranged in the cavity of rubber packing bar.
Rubber packing bar is arranged on movable smoke evacuation plate 8 and movable rows mouth 5 contact portion.
As shown in Figure 1, 2, this utility model includes: smoke exhaust fan 1, smoke exhaust fire damper 2 (can be selected for 280 DEG C of smoke exhaust fire dampers), smoke exhaust fan blast pipe 3, smoke evacuation plenum chamber 4, movable rows mouth 5, temperature control sealing device 6, electric open device 7.Movable rows mouth 5 adopts the storehouse plate of material identical with heat preservation of refrigeration storage top board and thickness to make, and the area of movable rows mouth 5 is determined less than 10m/s according to smoke evacuation air quantity and the wind speed of smoke exhaust fan 1.Movable rows mouth 5 is provided with movable smoke evacuation plate 8, and movable smoke evacuation plate 8 adopts loose-leaf to be connected with movable rows mouth 5.For preventing cold bridge through, cutting off the heat transmission inside and outside freezer, movable rows mouth 5 is normally closed time flat, and namely movable smoke evacuation plate 8 drives lower cover to be located on movable rows mouth 5 at electric open device 7.Movable rows mouth 5 is formed around temperature control sealing device 6 with movable smoke evacuation plate 8 contact, and temperature control sealing device 6 includes heating and attemperating unit, sealing device.Sealing device is the rubber packing bar with cavity, and sealing device is arranged on movable rows mouth 5 or movable smoke evacuation plate 8, it is also possible to all arrange sealing device on movable rows mouth 5 and movable smoke evacuation plate 8；Heating and attemperating unit include resistive heater, temperature sensor, temperature controller, resistive heater, temperature sensor are arranged in the cavity of rubber packing bar, temperature controller receives the temperature signal that temperature sensor detects, comparison by the temperature signal detected and set temperature value, control being turned on and off of resistive heater, the empty cavity temperature making sealing device and rubber packing bar maintains 2.5 ± 2.5 DEG C all the time, it is ensured that not frozen between movable rows mouth 5 and movable smoke evacuation plate 8.When heating and attemperating unit energising, when sealing device sky cavity temperature rises above 5 DEG C, temperature controller records the temperature in the cavity of rubber packing bar by temperature sensor, and temperature controller sends the signal of telecommunication, cuts off the power supply of resistive heater, stops heating.After stopping heating, along with cold transmission in freezer, sealing device sky cavity temperature can be gradually reduced, when empty cavity temperature drops to 0 DEG C, temperature controller records the temperature in the cavity of rubber packing bar by temperature sensor, temperature controller sends the signal of telecommunication, the power on of resistive heater, begins to warm up.In the cavity of sealing device, desired temperature is 0～5 DEG C, when empty cavity temperature is lower than 0 DEG C, can coagulate frost icing between the sealing strip of movable rows mouth 5 and freezer top board, causes that electric open device 7 cannot open movable smoke evacuation plate；Temperature is higher than 5 DEG C, can cause that the cold and hot transmission heat loss between the cavity of sealing device and freezer increases, and increases freezer refrigerating load, affects storehouse temperature constant.Smoke evacuation plenum chamber 4 adopts the storehouse plate of material identical with heat preservation of refrigeration storage top board and thickness to make, smoke evacuation plenum chamber 4 is room temperature transformed space, smoke exhaust fan 1 is connected with smoke evacuation plenum chamber 4 by smoke exhaust fan blast pipe 3, after smoke exhaust fan 1 starts smoke evacuation, smoke evacuation plenum chamber 4 forms negative pressure, flue gas enters smoke evacuation plenum chamber 4 through movable rows mouth 5, drains into outdoor through smoke exhaust fan blast pipe 3 and smoke exhaust fan 1；Smoke exhaust fan blast pipe not directly enters freezer, it is to avoid freezer cold is transferred to smoke exhaust fan 1 by smoke exhaust fan blast pipe, causes freezing stuck between the blade of smoke exhaust fan 1 and spiral case and cannot starting smoke evacuation；Between another of smoke evacuation plenum chamber 4 functions as between the buffering of freezer or steam again, smoke evacuation plenum chamber 4 adopts storehouse plate to make, and its inner space is connected with freezer by movable rows mouth 5, is communicated with outdoor by smoke exhaust fan 1 and smoke exhaust fan blast pipe 3；By its inline outer logical translation function, ensure the further strengthening of freezer cold-prevention bridge on the one hand, ensure that smoke evacuation system is properly functioning under normal temperature environment on the one hand.The import of smoke exhaust fan 1 is provided with smoke exhaust fire damper 2 (280 DEG C), smoke exhaust fire damper (280 DEG C) 2 are normally closed time flat, during fire, can remote activation electric open device 7, open movable rows mouth 5, open smoke exhaust fan 1 simultaneously, smoke exhaust fire damper 2 is discharged fume, when flue-gas temperature is more than 280 DEG C, smoke exhaust fire damper (280 DEG C) 2 is closed, and chain closedown smoke exhaust fan 1.Electric open device 7 accepts the start signal of fire protection control center, and unlatching drive mechanism is opened movable rows mouth 5 and discharged fume.Electric open device 7 includes the electric machine controller for controlling motor；Motor；For controlling the drive mechanism of folding between movable smoke evacuation plate and movable rows mouth 5, electric machine controller receives the signal of telecommunication and starts motor, and movable rows mouth opened by driven by motor drive mechanism.
Specific embodiment described herein is only to this utility model spirit explanation for example.Described specific embodiment can be made various amendment or supplements or adopt similar mode to substitute by this utility model person of ordinary skill in the field, but without departing from spirit of the present utility model or surmount the scope that appended claims is defined.
Claims (3)
1. low-temperature cold store smoke extractor, including smoke exhaust fan (1), it is characterized in that, the outlet air end of smoke exhaust fan (1) is connected with smoke exhaust fan discharge pipe (10), the air intake of smoke exhaust fan (1) is connected with smoke exhaust fan blast pipe (3) one end by smoke exhaust fire damper (2), smoke exhaust fan blast pipe (3) other end is connected with smoke evacuation plenum chamber (4), movable rows mouth (5) is opened in freezer top, movable rows mouth (5) is connected to movable smoke evacuation plate (8) by loose-leaf, folding between movable rows mouth (5) and movable smoke evacuation plate (8) is controlled by electric open device (7), movable rows mouth (5) connects with smoke evacuation plenum chamber (4), it is provided with temperature control sealing device (6) between movable rows mouth (5) and movable smoke evacuation plate (8).
2. low-temperature cold store smoke extractor according to claim 1, it is characterised in that described temperature control sealing device (6) includes heating and attemperating unit and sealing device, and sealing device is the rubber packing bar with cavity；Attemperating unit includes resistive heater, temperature sensor and temperature controller, hot water radiation wire and temperature sensor and is connected with temperature controller respectively, and resistive heater and temperature sensor are arranged in the cavity of rubber packing bar.
3. low-temperature cold store smoke extractor according to claim 2, it is characterised in that described rubber packing bar is arranged on movable smoke evacuation plate (8) and movable rows mouth (5) contact portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521054601.7U CN205339900U (en) | 2015-12-17 | 2015-12-17 | Low -temperature cold store fume extractor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521054601.7U CN205339900U (en) | 2015-12-17 | 2015-12-17 | Low -temperature cold store fume extractor |
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| CN205339900U true CN205339900U (en) | 2016-06-29 |
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| CN201521054601.7U Active CN205339900U (en) | 2015-12-17 | 2015-12-17 | Low -temperature cold store fume extractor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274349A (en) * | 2019-04-27 | 2019-09-24 | 深圳市中港建筑工程有限公司 | A kind of fire-fighting smoke exhaust system and its installation method |
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2015
- 2015-12-17 CN CN201521054601.7U patent/CN205339900U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274349A (en) * | 2019-04-27 | 2019-09-24 | 深圳市中港建筑工程有限公司 | A kind of fire-fighting smoke exhaust system and its installation method |
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