CN104522133A - Meat animal dehairing system and method based on carbon dioxide air source heat pump - Google Patents

Meat animal dehairing system and method based on carbon dioxide air source heat pump Download PDF

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Publication number
CN104522133A
CN104522133A CN201410856245.4A CN201410856245A CN104522133A CN 104522133 A CN104522133 A CN 104522133A CN 201410856245 A CN201410856245 A CN 201410856245A CN 104522133 A CN104522133 A CN 104522133A
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CN
China
Prior art keywords
water
heat pump
boiler
air source
carbon dioxide
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Pending
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CN201410856245.4A
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Chinese (zh)
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田幼华
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Hebei St. Edmund Environmental Technology Co. Ltd.
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田幼华
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Priority to CN201410856245.4A priority Critical patent/CN104522133A/en
Publication of CN104522133A publication Critical patent/CN104522133A/en
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    • AHUMAN NECESSITIES
    • A22BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22BSLAUGHTERING
    • A22B5/00Accessories for use during or after slaughtering
    • A22B5/08Scalding; Scraping; Dehairing; Singeing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking

Abstract

The invention discloses a meat animal dehairing system and method based on a dioxide carbon air source heat pump. The meat animal dehairing system comprises a water storage pool (1), a first water pump (2), a softened water device (3), the CO2 heat pump (5), a hot water tank A (6) and a pig scalding pool A (7). The water storage pool (1), the first water pump (2), the softened water device (3), the CO2 heat pump (5), the hot water tank A (6) and the pig scalding pool A (7) are connected in sequence in the water flowing direction. The natural working medium CO2 serves as the refrigerant of the heat pump, compared with a traditional coal-fired boiler, the meat animal dehairing system is environmentally friendly and free of pollution, more cost is saved, electricity is saved by about 75 percent compared with that of other electric water heating devices, full-automatic operation is achieved, the step tariff is fully used for automatic water boiling and storing, and labor cost is saved; the temperature is automatically controlled between 60 DEG C and 65 DEG C, the meat color is bright after hair of a meat animal is removed, and dirty spots do not exist. In addition, according to the meat animal dehairing system and method, the structure is simple, operation is convenient, the existing coal-fired boiler can be directly replaced, part of facilities of an original pipeline are reserved, and the transformation cost is low.

Description

Meat animal based on carbon dioxide air source heat pump is shedded system and method for shedding
Technical field
The invention belongs to animal slaughtering technical field, particularly relate to a kind of meat animal based on carbon dioxide air source heat pump and to shed system.
Background technology
The hot water preparation that tradition slaughtering industry adopts probably has several, but all there is a series of problem:
1, coal burning boiler hot water preparing can produce the pollution such as waste residue, waste gas;
2, gas fired-boiler needs to lay fuel gas pipeline specially, and first current cost is too high;
3, electric boiler Energy Efficiency Ratio is lower, and production cost is too high;
4, oil burning boiler uses diesel oil to be raw material, and production cost is too high;
5, adopt freon to be other heat pump of working medium, leaving water temperature generally not higher than 55 DEG C, far can not reach the temperature requirement of operation of shedding, if post bake utilizes electric auxiliary heat, cost is too high, and these heat pumps none can adapt to low temperature environment;
6, solar energy equipment needs to determine according to the situation of weather, and unstability index is maximum, cannot ensure long-term hot water supply;
7 so Selection utilization CO 2air source heat pump is produced high-temperature-hot-water to realize operation of shedding, and advantage is obviously.
Summary of the invention
The object of the embodiment of the present invention is intended in the environmental pollution solving the existence of existing technology, and cost is high, and leaving water temperature is lower, consumes energy more, can not adapt to the problems such as low temperature environment.
Due to CO 2it is the natural refrigerant that one does not destroy atmospheric ozone layer (ODP=0) and global warming index very little (GWP=1).It is nontoxic, do not burn, not with metal, nonmetallic materials generation chemical reaction, not etching apparatus, and at high temperature also can not resolve into pernicious gas, therefore itself have higher security.Use natural medium CO 2make the heat pump of cold-producing medium, be called CO 2heat pump.
Therefore the invention provides a kind of meat animal based on carbon dioxide air source heat pump to shed system, it comprises cistern, the first water pump, water softening device, CO 2heat pump, boiler A, scalds pig pond A, is wherein linked in sequence as cistern successively according to the direction of water flow, the first water pump, water softening device, CO 2heat pump, boiler A, scalds pig pond A.
Also comprise the first temperature controller and the first electric auxiliary heating apparatus, it is all connected on boiler A.
Also comprise the first magnetic valve and switch, it is connected between boiler A and boiling hot pig pond A, the first magnetic valve and switch in parallel.
Also comprise boiler B, it is connected to CO 2the water side of heat pump, in parallel with boiler A.
Also comprise the second water pump, it is connected to water softening device and CO 2between heat pump.
Boiling hot pig pond A is also connected with the 3rd temperature controller and the 3rd electric auxiliary heating apparatus.
Also comprise boiling hot pig pond B, it is in parallel with boiling hot pig pond A, and is also connected with the 4th temperature controller and the 4th electric auxiliary heating apparatus on boiling hot pig pond B, and the 4th temperature controller is in order to detect the temperature of boiling hot pig pond B.
Also comprise auxiliary piping system, this auxiliary piping system comprises the 3rd water pump, second magnetic valve, 3rd magnetic valve, 5th electric auxiliary heating apparatus, 6th electric auxiliary heating apparatus, 5th temperature controller, this auxiliary piping system is connected to the exit of boiler A, in parallel with the pipeline formed between the first magnetic valve and switch, wherein boiler A outlet is connected to the 3rd water pump, 3rd exit of pump connects two-way more respectively, this two-way is in parallel, each road parallel pipeline is according to the direction of current connected electromagnetic valve and electric auxiliary heating apparatus respectively, it is a pipeline that the exit of two electric auxiliary heating apparatus remerges, connect the 5th temperature controller afterwards again.
Also comprise automatic programming PLC device, in order to carry out Automated condtrol to whole system.
Utilize the first water pump by the water suction softened water equipment in cistern, the qualified water after softening enters CO 2air source heat pump, heat preservation hot water tank A is entered for subsequent use through the disposable high-temperature-hot-water heated of heat pump, in heat preservation hot water tank A, electric auxiliary heating apparatus and temperature control device are installed simultaneously, moment ensures that the hot water temperature of heat preservation hot water tank A is at 90 DEG C ~ about 95 DEG C, when operation of shedding starts, by magnetic valve or hand switch, the deposit hot water in boiler is put into boiling hot hair pond to use, if when the water temperature of scalding in hair pond does not reach 60 DEG C ~ 65 DEG C, the auxiliary heat of the electricity in pipeline is utilized to carry out post bake, with carrying out smoothly of the operation that ensures to shed.
The invention process is achieved in that the working medium CO utilizing heat pump 2special nature under Trans-critical cycle state, by compressor work, makes working medium CO 2undergo phase transition, thus the heat energy absorbed in air is discharged in water, realizes disposable high-temperature-hot-water (reaching as high as 95 DEG C) of producing and stores for future use, then utilizes realize the shedding automation of operation of PLC Automated condtrol and press button to complete.Another object of the embodiment of the present invention is to provide the CO that disposablely can produce high-temperature-hot-water 2air source heat pump equipment, this equipment is main body of the present invention, this equipment can utilize less electric energy to obtain larger energy, Energy Efficiency Ratio is higher than 4.0, compared to electric boiler, oil burning boiler hot water preparing can power cost saving 75%, can power cost saving 50% compared to gas fired-boiler, can significantly reduce production cost for processing enterprise, guarantee the profit.
Another object of the embodiment of the present invention is to provide can the CO of decreasing pollution 2air source heat pump equipment, this equipment utilization pure natural working medium CO 2, pollution-free, energy-conserving and environment-protective, are the best substitute replacing coal-burning boiler, effectively can eliminate haze weather.
Compared with original hot water preparing technology:
Original coal-burning boiler is seriously polluted, produce the pollutant such as waste gas, waste residue, serious affects air, the arch-criminal producing haze weather, and the present invention is environment friendly and pollution-free, do not produce the pernicious gas such as waste gas, waste residue, by calculating, operating cost of the present invention is substantially suitable with the coal-fired expense of original coal-burning boiler.
Structure of the present invention is simple, and easy to operate, can directly replace existing coal-burning boiler, retain the part facility of original pipeline, improvement cost is lower.Reduce cost, native system disposablely can produce the high-temperature water of 95 DEG C; Native system Energy Efficiency Ratio COP can up to more than 4.5; System can also adapt to the low temperature environment of-20 DEG C.
Accompanying drawing explanation
Fig. 1 is that the meat animal based on carbon dioxide air source heat pump of the present invention is shedded the schematic diagram of system;
Description of reference numerals:
1-cistern, 2-first water pump, 3-water softening device, 4-second water pump, 5-CO 2heat pump, 6-boiler A, 7-scald pig pond A, 8-first temperature controller, the electric auxiliary heating apparatus of 9-first, 10-first magnetic valve, 11-switch, 12-boiler B, 13-second temperature controller, the electric auxiliary heating apparatus of 14-second, 15-the 3rd temperature controller, the electric auxiliary heating apparatus of 16-the 3rd, 17-scalds pig pond B, 18-the 4th temperature controller, the electric auxiliary heating apparatus of 19-the 4th, 20-the 3rd water pump, 21-second magnetic valve, 22-the 3rd magnetic valve, the electric auxiliary heating apparatus of 23-the 5th, the electric auxiliary heating apparatus of 24-the 6th, 25-the 5th temperature controller
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, the invention provides a kind of meat animal based on carbon dioxide heat-pump and to shed system, it comprises cistern 1, the first water pump 2, water softening device 3, CO 2heat pump 5, boiler A6, scalds pig pond A7, is wherein linked in sequence as cistern 1 successively according to the direction of water flow, the first water pump 2, water softening device 3, CO 2heat pump 5, boiler A6, scalds pig pond A7.
Its specific works process is: the water under cistern 1 li of normal temperature is extracted out by water pump 2, through water softening device 3 soften qualified after enter CO 2heat pump 5 is heated to suitable temperature, finally enters boiling hot pig pond A7 in order to shed to meat animals such as pigs.
Further, this system also comprises the first temperature controller 8 and the first electric auxiliary heating apparatus 9, and it is all connected on boiler A5.First temperature controller 8 in order to detect the temperature of boiler A6, the first electric auxiliary heating apparatus 9 in order in the temperature of boiler A6 lower than the water heated during certain temperature value in this boiler A6, make it reach required temperature.
Further, this system also comprises the first magnetic valve 10 and switch 11, it is connected between boiler A6 and boiling hot pig pond A7, first magnetic valve 8 is in parallel with switch 11, can the opening and closing of control piper be used so that the deposit hot water in boiler is put into boiling hot hair pond by the first magnetic valve 8 or hand switch 11.
Further, this system also comprises boiler B12, and it is connected to CO 2the water side of heat pump 5, in parallel with boiler A6, in order to lay in unnecessary hot water after the hot water of boiler A6 fills with, play the effect of shunting, and can supplement timely it, due to CO when the first boiler 5 hot water is inadequate 2heat pump is that the electric energy used drives, and when peak of power consumption every night, in order to ensure the normal use of other electrical equipments, can reduce CO 2the power of heat pump or close this heat pump, and the hot water now laid at ordinary times in boiler B12 just can add in boiler A6, in order to provide required hot water, both peak of power consumption is avoided like this, peak valley is energy-conservation, temperature required hot water can also be obtained again, therefore there is extraordinary using value and market.
Boiler B12 is also connected to the second temperature controller 13 and the second electric auxiliary heating apparatus 14, second temperature controller 13 is in order to detect the temperature of boiler B12, second electric auxiliary heating apparatus 14 in order in the temperature of the second boiler 10 lower than the water heated during certain temperature value in this boiler B12, make it reach required temperature.
Further, this system also comprises the second water pump 4, and it is connected to water softening device 3 and CO 2between heat pump 5, in order to extract water softening device water side be softened after water, make it enter pipeline.
Further, this system is also connected with the 3rd temperature controller 15 and the 3rd electric auxiliary heating apparatus 16 on boiling hot pig pond A7,3rd temperature controller 15 is in order to detect the temperature of boiling hot pig pond A7,3rd electric auxiliary heating apparatus 16 in order in the temperature of boiling hot pig pond A7 lower than the water heated during certain temperature value in this boiling hot pig pond A7, make it reach required temperature.
Further, this system also comprises boiling hot pig pond B17, it is in parallel with boiling hot pig pond A7, in order to the hot water of surplus to be injected this second boiling hot pig pond, arranging like this can make multiple boiling hot pig pond be injected into hot water simultaneously, to reach the object that multiple boiling hot pig pond can work simultaneously, improve operating efficiency, and on boiling hot pig pond B17, be also connected with the 4th temperature controller 18 and the 4th electric auxiliary heating apparatus 19, 4th temperature controller 18 is in order to detect the temperature of boiling hot pig pond B17, 4th electric auxiliary heating apparatus 19 in order in the temperature of boiling hot pig pond B17 lower than the water heated during certain temperature value in this boiling hot pig pond B17, it is made to reach required temperature.
Further, this system also comprises auxiliary piping system, this auxiliary piping system comprises the 3rd water pump 20, second magnetic valve 21, 3rd magnetic valve 22, 5th electric auxiliary heating apparatus 23, 6th electric auxiliary heating apparatus 24, 5th temperature controller 25, this auxiliary piping system is connected to the exit of boiler A6, in parallel with the pipeline formed between the first magnetic valve 10 and switch 11, wherein boiler A6 outlet is connected to the 3rd water pump 20, 3rd water pump 20 exports and connects two-way respectively again, this two-way is in parallel, each road parallel pipeline is according to the direction of current connected electromagnetic valve and electric auxiliary heating apparatus respectively, it is a pipeline that the exit of two electric auxiliary heating apparatus remerges, connect the 5th temperature controller afterwards again.Namely the second magnetic valve 21 is connected with the 5th electric auxiliary heating apparatus 23 formation first branch road, 3rd magnetic valve 23 is connected with the 6th electric auxiliary heating apparatus 24 formation second branch road, after this first branch road and the second branch circuit parallel connection, series connection is between the outlet and the 5th temperature controller 25 of the 3rd water pump 20.The object and the effect that arrange this auxiliary piping system are: when discharge is very large, CO 2heat pump heats power and may not reach required requirement, temperature water temperature not being reached specify, so this not to be reached by the 3rd water pump 20 the water suction auxiliary piping system of demand, and then feed the magnetic valve of two-way parallel connection and electric auxiliary heating apparatus, thus electric auxiliary heating is carried out to water, the effect first that the magnetic valve arranging two-way parallel connection powers up auxiliary heating apparatus can play shunting action when current are larger, second be just in case which magnetic valve or electric auxiliary heating apparatus break down in another one branch road can also carry out work constantly, heat constantly, ensure the normal operation of whole system.
Further, this system also comprises automatic programming PLC device, in order to carry out Automated condtrol to whole system.PLC is writing a Chinese character in simplified form of Programmable Logic Controller, Chinese is programmable logic controller (PLC), it adopts a class programmable memory, for its internally stored program, actuating logic computing, sequential control, regularly, counting and the user oriented instruction such as arithmetical operation, and by numeral or analog pattern input/output various types of machinery of control or production process.The groundwork that the present invention will complete mainly relies on PLC device and press button to realize, and shows three aspects: one is the Automated condtrol of implementation procedure, utilizes temperature controller, liquid level meter etc. to complete Automated condtrol to relevant device.Two is safeguard protections, realize the timely alarm indication when abnormal running appears in electric auxiliary heat, magnetic valve, water pump etc. and effectively perform cutting-off controlling according to alert levels.Three is accurately, intuitively reflect service data, and carries out a certain amount of storage inside, can check recent operation conditions at any time.Further, this system utilizes the first water pump 2 by the water suction softened water equipment 3 in cistern 1, and the qualified water after softening enters CO 2air source heat pump 5, heat preservation hot water tank A6 is entered for subsequent use through the disposable high-temperature-hot-water heated of heat pump 5, electric auxiliary heat and temperature control device are installed in heat preservation hot water tank A6 simultaneously, moment ensures that the hot water temperature of heat preservation hot water tank A6 is at 90 DEG C ~ about 95 DEG C, when operation of shedding starts, by magnetic valve or hand switch, the deposit hot water in boiler is put into boiling hot hair pond to use, if when the water temperature of scalding in hair pond does not reach 60 DEG C ~ 65 DEG C, the auxiliary heat of the electricity in pipeline is utilized to carry out post bake, with carrying out smoothly of the operation that ensures to shed.
The contrast of the present invention and prior art:
The performance comparison of table 1 carbon dioxide heat-pump and other equipment
Table 2CO 2air source heat pump and other air source heat pump contrast
Above table mainly describes the main body CO in the present invention 2the advantage contrast of air source heat pump, the advantage highlighted is comparatively obvious, and the PLC automation control appliance in addition in the present invention has ensured carrying out smoothly of operation of shedding, and after links be combined with each other, shows peculiar advantage of the present invention.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.

Claims (10)

1. to shed a system based on the meat animal of carbon dioxide air source heat pump, it is characterized in that, comprise cistern (1), the first water pump (2), water softening device (3), CO 2heat pump (5), boiler A (6), scalds pig pond A (7), is wherein linked in sequence as cistern (1) successively according to the direction of water flow, the first water pump (2), water softening device (3), CO 2heat pump (5), boiler A (6), scalds pig pond A (7).
2. a kind of meat animal based on carbon dioxide air source heat pump according to claim 1 is shedded system, it is characterized in that, also comprise the first temperature controller (8) and the first electric auxiliary heating apparatus (9), it is all connected on boiler A (5).
3. a kind of meat animal based on carbon dioxide air source heat pump according to claim 1 is shedded system, it is characterized in that, also comprise the first magnetic valve (10) and switch (11), it is connected between boiler A (6) and boiling hot pig pond A (7), and the first magnetic valve (8) is in parallel with switch (11).
4. a kind of meat animal based on carbon dioxide air source heat pump according to claim 1 is shedded system, and it is characterized in that, also comprise boiler B (12), it is connected to CO 2the water side of heat pump (5), in parallel with boiler A (6).
5. a kind of meat animal based on carbon dioxide air source heat pump according to claim 1 is shedded system, and it is characterized in that, also comprise the second water pump (4), it is connected to water softening device (3) and CO 2between heat pump (5).
6. a kind of meat animal based on carbon dioxide air source heat pump according to claim 1 is shedded system, it is characterized in that, boiling hot pig pond A (7) is also connected with the 3rd temperature controller (15) and the 3rd electric auxiliary heating apparatus (16).
7. a kind of meat animal based on carbon dioxide air source heat pump according to claim 1 is shedded system, it is characterized in that, also comprise boiling hot pig pond B (17), it is in parallel with boiling hot pig pond A (7), and be also connected with the 4th temperature controller (18) and the 4th electric auxiliary heating apparatus (19) on boiling hot pig pond B (17), the 4th temperature controller (18) is in order to detect the temperature of boiling hot pig pond B (17).
8. a kind of meat animal based on carbon dioxide air source heat pump according to claim 1 is shedded system, it is characterized in that, also comprise auxiliary piping system, this auxiliary piping system comprises the 3rd water pump (20), second magnetic valve (21), 3rd magnetic valve (22), 5th electric auxiliary heating apparatus (23), 6th electric auxiliary heating apparatus (24), 5th temperature controller (25), this auxiliary piping system is connected to the exit of boiler A (6), in parallel with the pipeline formed between the first magnetic valve (10) and switch (11), wherein boiler A (6) outlet is connected to the 3rd water pump (20), 3rd water pump (20) outlet connects two-way more respectively, this two-way is in parallel, each road parallel pipeline is according to the direction of current connected electromagnetic valve and electric auxiliary heating apparatus respectively, it is a pipeline that the exit of two electric auxiliary heating apparatus remerges, connect the 5th temperature controller (25) afterwards again.
9. a kind of meat animal based on carbon dioxide air source heat pump according to claim 1 is shedded system, it is characterized in that, also comprises automatic programming PLC device, in order to carry out Automated condtrol to whole system.
10. utilize a kind of meat animal based on carbon dioxide air source heat pump according to any one of claim 1-9 to shed the method for shedding of system, it is characterized in that, utilize the first water pump (2) by the water suction softened water equipment (3) in cistern (1), the qualified water after softening enters CO 2air source heat pump (5), heat preservation hot water tank A (6) is entered for subsequent use through the disposable high-temperature-hot-water heated of heat pump (5), in heat preservation hot water tank A (6), electric auxiliary heating apparatus and temperature control device are installed simultaneously, moment ensures that the hot water temperature of heat preservation hot water tank A (6) is at 90 DEG C ~ about 95 DEG C, when operation of shedding starts, by magnetic valve or hand switch, the deposit hot water in boiler is put into boiling hot hair pond to use, if when the water temperature of scalding in hair pond does not reach 60 DEG C ~ 65 DEG C, the auxiliary heat of the electricity in pipeline is utilized to carry out post bake, to ensure to shed the carrying out smoothly of operation.
CN201410856245.4A 2014-12-16 2014-12-16 Meat animal dehairing system and method based on carbon dioxide air source heat pump Pending CN104522133A (en)

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CN201410856245.4A CN104522133A (en) 2014-12-16 2014-12-16 Meat animal dehairing system and method based on carbon dioxide air source heat pump

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Application Number Priority Date Filing Date Title
CN201410856245.4A CN104522133A (en) 2014-12-16 2014-12-16 Meat animal dehairing system and method based on carbon dioxide air source heat pump

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552306A1 (en) * 1983-09-23 1985-03-29 Ammeter Andre Method facilitating the hygienic skinning of animals during slaughter
CN2265075Y (en) * 1996-06-12 1997-10-22 陈振泉 Energy-saving pig-scalding pot for unhairing
JP2006020574A (en) * 2004-07-08 2006-01-26 Mayekawa Mfg Co Ltd Method and apparatus for pretreatment of dressing of carcass of meat carcass
CN2935818Y (en) * 2006-08-05 2007-08-22 青岛建华屠宰设备制造有限公司 Steam channel for dehairing
CN102657253A (en) * 2012-05-31 2012-09-12 济宁兴隆食品机械制造有限公司 Tunnel type pig slaughter online spraying and hot-steaming scalding device
CN203810719U (en) * 2014-05-20 2014-09-03 广东美的暖通设备有限公司 Carbon dioxide heat pump water heater
CN104061704A (en) * 2014-07-01 2014-09-24 天津凯德实业有限公司 High efficient and environment-friendly carbon dioxide air source heat pump device
CN104165458A (en) * 2013-05-16 2014-11-26 日立空调·家用电器株式会社 Carbon dioxide heat pump water heater
CN204335679U (en) * 2014-12-16 2015-05-20 田幼华 A kind of meat animal based on carbon dioxide air source heat pump is shedded system

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Publication number Priority date Publication date Assignee Title
FR2552306A1 (en) * 1983-09-23 1985-03-29 Ammeter Andre Method facilitating the hygienic skinning of animals during slaughter
CN2265075Y (en) * 1996-06-12 1997-10-22 陈振泉 Energy-saving pig-scalding pot for unhairing
JP2006020574A (en) * 2004-07-08 2006-01-26 Mayekawa Mfg Co Ltd Method and apparatus for pretreatment of dressing of carcass of meat carcass
CN2935818Y (en) * 2006-08-05 2007-08-22 青岛建华屠宰设备制造有限公司 Steam channel for dehairing
CN102657253A (en) * 2012-05-31 2012-09-12 济宁兴隆食品机械制造有限公司 Tunnel type pig slaughter online spraying and hot-steaming scalding device
CN104165458A (en) * 2013-05-16 2014-11-26 日立空调·家用电器株式会社 Carbon dioxide heat pump water heater
CN203810719U (en) * 2014-05-20 2014-09-03 广东美的暖通设备有限公司 Carbon dioxide heat pump water heater
CN104061704A (en) * 2014-07-01 2014-09-24 天津凯德实业有限公司 High efficient and environment-friendly carbon dioxide air source heat pump device
CN204335679U (en) * 2014-12-16 2015-05-20 田幼华 A kind of meat animal based on carbon dioxide air source heat pump is shedded system

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权守仁彦,吉永信也: "小型一体化CO2冷媒热泵热水器的开发", 《家电科技》 *

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