Heat and mass transfer apparatus

 

(57) Abstract:

The invention relates to the processing industry and for the design of heat and mass transfer apparatus (TMA) for the separation of multicomponent materials into fractions. TMA solves the problem of reducing a metal content of TMA in production and energy consumption in service, convenience of service and mobility TMA. TMA contains made of teploneprovodjashchimi material inclined to the horizon at an angle 1-35othe horizontal unit heater (H) 1, a sectional block (SB) 2, and column (D) 3 with cap (K) 4. SAT 2 installed between the vertical double walls (PD) 5, 6 containers with a nozzle (KN) 7 perforated distributors (cont'd) 8. Each DP has gaps of the upper side of the front walls p, K4, between Paragraph 5 and 6, the bottom side with the bottom of the SAT, as well as the seal 9 of the upper side of the Section 6 with C4, and both P and railing sides SAT 2 can travel on them for maintenance. Each STO 7 is made of a mesh box with a nozzle in it and can move between APS during installation and maintenance. TMA can be performed with one-piece, hinged to the base or chassis, with the hinge at the lower end SB and C what she SAT on dephlegmation the end of it. The invention can be used for distillation, cracking or adsorption of oil, chemical or food raw materials. 2 C.p. f-crystals, 3 ill.

The invention relates to the processing industry, mainly for the production of multicomponent separation of crude oil, chemical or food, in particular to the design of processing equipment for them, such as heat and mass transfer devices.

Known mass transfer vertical column of rectangular cross-section heavy duty liquid with inclined in the opposite side grilles and a nozzle on each of them with a counter-current movement of the liquid from the top, and gas - bottom with bubbling liquid gas is pressed through the grating openings and mesh on the underside of the grates (EN 2033836, 1985). Also known apparatus by evaporation of a liquid film elements, inclined enshrined in longline baths on the walls of the column with a staggered arrangement of the baths on the vessel wall (SU 1604387, 1988). Vertical layout of the mentioned columns, their traditional implementation of heat-conducting material predetermine low maintenance properties due to the inconvenience of service and large energy separation ukreplenii at the bottom of the hull bottom side and the top side of each partition (EN 2053008, 1996).

The closest in technical essence to the proposed solution is a device with a horizontal housing having a sectional evaporator fluid and a condenser above and below the perforated horizontal grid. In each section with vertical walls mounted on the evaporator and condenser, respectively, is the nozzle, and for removal of final products division and supplying the source material, the apparatus has a fitting input and output (SU 674752, 1979).

The horizontal arrangement of this apparatus improves the performance properties. However, the alignment of the temperature gradient in sections due to thermal conductivity of the material of the body causes a decrease in productivity, as well as the location of the evaporator with the condenser on top of each other. This location them at all stages of the workflow causes the movement of the greater part of the feedstock in the evaporator and condenser without contact with each other, but with energy consumption on the move.

In addition, to ensure the separation process in the known apparatus requires large dimensions and, accordingly, metal and complexity of manufacturing, their primeneniyu to the consumer, since used vehicles are designed and manufactured for the processing of large masses of raw materials with a concentration of processing in a certain place.

The present invention solves the problem of reducing metal consumption of the device while improving performance while reducing power consumption in operation with preservation of facilities maintenance, and mobility of the device.

The essence of the invention is that the heat and mass transfer apparatus containing accommodated in the housing of the attachment between the vertical walls and perforated horizontal elements, means IO recyclable material provided by the case of metalloproteinase material, inclined to the horizontal and connected with a reflux-condenser at the upper end of the top and bottom nozzles, the nozzle is in mesh containers located in the sections between the removable cover and dual partitions, vertical mounted on one of the partitions perforated distributor in each section parallel to the bottom of the housing, with which the two partitions have the clearance of the bottom sides, while the front bulkhead forms with lid clearance for messages bulkhead cancado sections are located in the guide rails of the lateral sides of the body with the possibility of their removal to service the device.

The casing is made of mineral or synthetic material on a metal frame is inclined to the horizontal at an angle 1-35o.

The apparatus may be mounted on a base or chassis evaporator /cube/ and pivotally connected therewith or Foundation /chassis/ sectional unit with a reflux condenser with a connection unit with evaporator flexible hoses and means of regulation of the angle block /Cam, trossoblochnoy and so on /.

The execution of the body of metalloproteinase material or internal metalloprotein lining eliminates the reduction of the temperature gradient along the length of the apparatus and the compensation of its additional energy consumption due to thermal conductivity of the material of the body, the inclined position of the bottom of the Cabinet and interconnected sections provide the motion phases of the processed raw materials in the process, the compactness and portability of the device.

In Fig. 1 of the drawing shows the proposed heat and mass transfer apparatus, a longitudinal section, Fig. 2 - fragment of heat and mass transfer apparatus with a hinge at the lower end of the sectional unit, and Fig. 3 - trossoblochnoy mechanism of regulation of the angle of the sectional unit.

The device can be made with sectional unit 15 connected to the evaporator 1 /cube/ or chassis by means of flexible hoses 16 and hinge 17 /Fig. 2/ and the upper end of the block 15 and is based on the cable 19 with fixed ends on the reels 18 having a handle for winding /coiling/ ends of the cable 19 on the reel 18 to change the angle of inclination of the housing /block/.

The proposed heat and mass transfer apparatus as follows.

To start the apparatus of the feedstock in the liquid phase serves in a cube 1 through the valve 14 and Arjen boiling component fill the first section to the established in the cube 1 and the first section of the level, determined by the pressure P1over the heated fluid and the weight of liquid in the section. When the pressure above the liquid level in the cube portion of the gas breaks through the liquid seal in the channel between the partitions 5-6, passes through the liquid under the valve 8 and through the holes goes on the block nozzles 7 of the first section, irrigating it partially condenses and accumulating over unit 7 with a pressure P2. Barberey through the liquid valve gas sequentially fills privilegiada section and a reflux condenser 3, in which the gas condenses and flows down along the bottom of the first section, sequentially filling liquid privilegiada section to the last. The pressure in the sections of the P4P5P6and the fluid level in the sections are balanced as in communicating vessels. Establishing /accumulation/ liquid shutter in the last right-hand section means the output of the device at steady state, after which the opening of the valves 10, 11, 12 or 13 begin the selection of the product of the appropriate fractions and concentration.

In the steady state processing part of the vapor bubbles which have not passed through the perforation of the valves 8, is moved through a counter-flowing liquid from the reflux condenser to the next via the blocks of the nozzles 7 pairs provides additional heat and mass transfer. The stability of the apparatus is maintained while maintaining a balance between the number of entrants in a cube of raw materials and selection of products of processing with adjustable taps 10-14.

In heat and mass transfer apparatus with swivel case /block/ 15 to adjust the angle of inclination of the housing delegatory the end of his raised or lowered, for example by using trossoblochnoy system. For lifting the housing /block/ and increase the angle of tilt with the arm wound fixed ends of the cable 19 to the drums 18 /Fig. 3/ and the middle of it rises to the pulleys. In the desired position the axis of the drum is fixed by means of spring-loaded stopper /not shown/. Adjusting the angle of the axis of the hinge 17 can be, for example, changing the fluidity of the processed material. The change of the distance between cube 1 and the block 15 is compensated by the flexible hoses 16 /Fig. 2/. The apparatus can be performed with a rigid connection of the cube with the block sections and a reflux condenser and with the hinge in Cuba.

Distributors 8 housing can be adjustable perforation, which creates an additional adjustment capabilities of the workflow.

1. Heat and mass transfer apparatus, comprising a housing of rectangular cross-section with ustanovenie elements, fitting input of raw materials processed and output of products of processing, characterized in that it is made of metalloproteases material body is inclined to the horizontal, has a double wall container nozzle between them and perforated distributors mounted on the first partition, while between each partition in a pair has a channel that tells the sections to each other via a gap to the upper side of the first partition paired with a lid, and a gap lower sides of the walls with the bottom of the housing, the reflux condenser is located on the upper end of the housing and connected with him the top and bottom nozzles, the side walls of the housing have guides for partitions with seal and movement of the partitions during installation and maintenance.

2. Heat and mass transfer apparatus according to p. 1, characterized in that it is made of mineral or synthetic material housing metal frame or has an internal lining of these materials is inclined to the horizontal at an angle 1-35oto the horizontal.

3. Heat and mass transfer apparatus under item 1 or 2, characterized in that one end of the housing or a portion of the apparatus attached pivotally to the base or chassis,the first hinge end of the apparatus is provided with means for regulating the angle of inclination of the housing to a horizontal eccentric, trossoblochnoy or other known construction.

 

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1 dwg

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