CN2108887U

CN2108887U - Plate type (umbrella sheet type) heat exchanger

Info

Publication number: CN2108887U
Application number: CN 91227597
Authority: CN
Inventors: 缪志先
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-11-05
Filing date: 1991-11-05
Publication date: 1992-07-01

Abstract

The utility model discloses a plate type (umbrella plate type) heat exchanger. Daughter bodies are formed by two sheets of heat exchange fins which are provided with 1-2 holes, and a bushing ring. A core body is formed by 1 or more daughter bodies, comprising a top heat exchange fin, a bottom heat exchange fin, shaped stripes, and nozzles of an inlet and an outlet of an inner channel. An assembly is composed of a plurality of core bodies. A pair of outer channels are arranged on the both sides. A parallel flow heat exchange form, a series flow heat exchange form, and a mixed flow heat exchange form can be formed by the different daughter bodies which are formed according the positions and the quantities of the holes which are opened on the heat exchanger fins. In welding, each welded seam can be detected for repair welding. The damaged core bodies can be partial replaced to avoid premature integrated damage. The working pressure of the structure can reach to more than 3 mpa, and the working temperature can reach to more than 300 DEG. Heat exchange area can be large or small. The utility model is very applied to petrochemical industry, motive power machine, foodstuff, pharmacy, etc.

Description

Plate type (umbrella sheet type) heat exchanger

The utility model relates to a kind of heat exchanger, relates in particular to a kind of board-like (umbrella is board-like) heat exchanger.

Existing board-like (umbrella is board-like) heat exchanger, generally make gasket seal with rubber at the periphery and the passage place of every heat exchanger fin, and the heat exchange between the formation two media, its shortcoming is, operating temperature and operating pressure are lower, efficient is relatively poor, and at present general serviceability temperature is 150 ℃, and operating pressure is 1MPa.Because seal perimeter is long, heat transferring medium easily leaks when assembling and use, and rubber cushion is easily aging, damages.So cause the low maintenance capacity of product utilization rate big.At present also have such heat exchanger is adopted all-welded structure in order to improve serviceability temperature and operating pressure.But the sealed difference of this kind product structure and rubber cushion is little, and the overall time bonding area is bigger, and the welding quality of internal channel is difficult for detecting, reprocessing and repair welding.So yield rate is lower.In addition because the restriction of welding equipment can only be made the less product of volume at present.And because the product of this welding is non-dismountable, can not change the core body of wherein local damage, in case indivedual heat exchanger fin has problem can cause entire product to scrap.

The purpose of this utility model is to make one can improve serviceability temperature and operating pressure, improve manufacturing process and product, reduce welding equipment to the restriction of product size and can carry out having of local replacing welded board-like (umbrella is board-like) heat exchanger to product.

The utility model is achieved in that it is to constitute the daughter structure by ripple heat exchanger fin that has 1-2 hole above two and grommet in the tapping annular solder together.Comprise the top by one or more daughters again, the bottom heat exchanger fin, internal channel import and export pipe is chewed with various type bar integral solder and is constituted core together.And a plurality of core bodys are to formation heat exchange core body assembly welded together.Core body or core component anti-deformation pressing plate and annular compress gasket be housed up and down, there is an access road both sides.Have on the anti-deformation pressing plate with inner passway tube and chew corresponding import and export pore.On monnolithic case, with general board-like (umbrella is board-like) heat exchanger difference be it in the both sides of core body or assembly many access roads, outer tunnel and available welding method of connecting of core body or assembly (can not destroy the core body weld seam) or seal with the external world with gasket seal and bolt, nut.Internal channel hole shape on each heat exchanger fin is not limit, the position in this internal channel hole can be on heat exchanger fin any suitable position.Chewing the heat exchanger fin that connects and internal channel hole thereof with the import and export pipe can make and be suitable for pipe and chew the form of welding with it.Between two heat exchanger fins at the internal channel place because (possible) ripple height, can place the usefulness of the grommet of sealing as load and solder type bar.Two heat exchanger fins and grommet require the annular solder sealing.Also can form a relatively independent heat exchange daughter and directly the mutual annular welds in internal channel hole on two heat exchanger fins is also passed through the weld seam sealing detection together without grommet.Quantity according to hole on the heat exchanger fin can be formed different daughters with the position, and forms crossfire, and stream, three kinds of multi-form heat exchange modes of mixed flow.Heat exchange core body comprise by one or more daughters that top, bottom heat exchanger fin and internal channel import and export that pipe is chewed and various type bar by being welded to form.In daughter, between daughter and the daughter, daughter and top are welded with sealing or nonocclusive ring-type type bar respectively between the heat exchanger fin of bottom.These type bars have has a monolateral seal groove, and what have does not have a seal groove.Import and export the heat exchange core body that pipe is chewed for being welded with top, bottom heat exchanger fin and internal channel simultaneously, with after the outer tunnel welding through sealing detection, and with anti-deformation pressing plate and annular compress gasket and bolt, nut just can independently become single core body heat exchanger of full Type of Welding after core body tightens.In the time of can reaching the purpose of local replacing heat exchange core body as enlarging the big inadequately and requirement of heat exchange area or welding equipment, the mode that can adopt core body to connect is formed core component.The connection of core component is to utilize the core body end face to be welded with the heat exchanger fin that is welded with the band overlap in the non-enclosed type bar of monolateral seal groove and the daughter, and the mutual annular solder of such heat exchanger fin is formed together, and all weld seams need pass through sealing detection.For load and sealing, type bar, the U type counterpart place that need add a nonocclusive ring-type type bar or the connection of a pair of U type counterpart in the weld seam outside of core body joint need with gasket seal or welded seal, all there is seal groove these type bar top and bottom of core body connection place, and the type bar that has seal groove with monolateral on gasket seal and the core body tightens sealing by anti-deformation pressing plate and annular compress gasket and bolt, nut at core component, use double-screw bolt at last, nut and gasket seal are fastened on the core component both sides with the assembled outer tunnel and seal with the external world.So, be welded with respectively when top, bottom heat exchanger fin and internal channel import and export pipe and chew at each core body, with forming complete outer tunnel is the welding multicore body assembly heat exchanger of fitting tight formula, this heat exchanger can be opened core body by shovel and connect the purpose that weld seam reaches the replacing core body, also can form the welding multicore body assembly heat exchanger with big heat exchange area with less relatively heat exchange core body.Thereby reduce the restriction of welding equipment and the loss that weld defect brings.And branch, segmentation welding can guarantee each weld seam detection and repair welding and sealing reliability easily.

Advantage of the present utility model and good effect are: the operating temperature of board-like (umbrella is board-like) heat exchanger is reached more than 300 ℃, and operating pressure can reach more than the 3MPa.2. can solve the sealing reliability problem of welded board-like (umbrella is board-like) heat exchanger internal channel girth joint and all weld seams of periphery, and reprocessing in the manufacture process, problem such as repair welding.3. excessive or when not having the welding equipment of corresponding size when required heat exchanger volume, this heat exchanger can be with one or more daughters and top, bottom heat exchanger fin, internal channel is imported and exported pipe and is chewed and various required type bar, use less relatively welding equipment, adopt the method for segmentation welding, at first be welded into each heat exchange core body.Through to again each core body assembly welding being become the heat exchange core body assembly of required all size after the sealing detection of core body.Possess outer tunnel at the same time, after core body connection type bar and each gasket seal and anti-deformation pressing plate and the annular compress gasket, will form the welding multicore body assembly heat exchanger that outer tunnel is an assembling form by the fastening of bolt, nut.So structure can also reduce the loss that is brought because of disposable whole integral solder mass defects.4. be during the multicore body heat exchanger of assembling form uses, to damage at outer tunnel, can open core body coupling ring weld seam, reject ring by shovel as indivedual heat exchanger fins, the core body of changing, and carry out annular solder in the connection place, recover intact product.5. core body itself is welded with top, bottom heat exchanger fin and internal channel at the same time and imports and exports pipe and chew and outer tunnel, and possesses the anti-deformation pressing plate, after the annular compress gasket,, can independently become full welded type list core body heat exchanger by fastening on core body of bolt, nut.6. this heat exchanger is applicable to petrochemical industry, dynamic power machine, food pharmaceutical etc.

Fig. 1 welds three core component concurrent flow heat exchanger schematic diagrames for the outer tunnel assembled,

Fig. 2 is an outer tunnel assembled heat exchanger vertical view,

Fig. 3 is the full welded type list of two a daughters core body concurrent flow heat exchanger schematic diagram,

Fig. 4 is a heat exchange form schematic diagram.

As shown in Figure 1: on core component, have internal channel to import and export pipe in the middle of the anti-deformation pressing plate (2) and chew (3), there is grommet (1) at the internal channel place between two heat exchanger fins, below anti-deformation pressing plate (2), have with internal channel import and export pipe and chew the heat exchange of top part sheet (4) of welding, the heat exchanger fin (5) of internal channel mouth in cross section center line upper periphery and the welding of type bar arranged.Outer tunnel (6) is in the both sides of core component, and nonocclusive ring-type type bar (7) is the usefulness as the daughter welded seal in the outer tunnel inboard.Also has the internal channel mouth on the center line of cross section and the heat exchanger fin (10) of overlap and internal channel mouth are arranged on the bottom line of cross section and have the heat exchanger fin (12) of overlap, the heat exchanger fin of these two kinds band overlaps to be used between the core body connection to carry out annular solder in that outer tunnel is inboard.Have the U-shaped type bar (11) of seal groove to be added between core body up and down, counterpart connection place (9) are counterpart gasket seal or seal-weld.Also have upper and lower non-closed ring type bar (15) and the type bar gasket seal (16) that seal groove is arranged in the core body connection place, and the monolateral non-sealing ring seal shape type bar (13) that seal groove is arranged.The annular type bar (8), internal channel mouth of sealing reaches outer tunnel gasket seal (19) at the heat exchanger fin (14) of cross section bottom line upper periphery with the welding of type bar, all in the inboard of outer tunnel.(20) be bottom atresia heat exchanger fin, general assembly load annular compress gasket (17) is between anti-deformation pressing plate and core component.Bottom anti-deformation pressing plate (18) is below core component, and core component fastening bolt, nut (22) and outer tunnel fastening bolt, nut (21) are fixedly core component and outer tunnel respectively.

As shown in Figure 3, (6a) be the welded type outer tunnel, as shown in Figure 4, (23) are parallel type heat exchange form, and (24) are crossfire heat exchange form, and (25) are mixed flow heat exchange form.

Claims

1, a kind of board-like (umbrella is board-like) heat exchanger, it constitutes the daughter structure by two heat exchanger fins (5) or (10) or (12) or (14) and grommet (1) in the welding of internal channel choma shape, comprise heat exchange of top part sheet (4) by one or more daughters again, bottom heat exchanger fin (20) and various type bar (7) (8) or (13) and internal channel import and export pipe are chewed (3) integral solder formation core and be it is characterized in that: be welded with the top at the same time, the bottom heat exchanger fin and the internal channel inlet tube is chewed and an access road (6a) and have on, the core body of following anti-deformation pressing plate (2) (18) and annular compress gasket (17), at bolt, nut (22) fastening down, can independently become the single core body heat exchanger of full welding.And but a plurality of core body assembly welding becomes the core component structure, in assembly, there are type bar (11) (15) and pad (16) and pad or weld seam (9) in the core body connection place, be welded with the top at the same time, bottom heat exchanger fin and internal channel are imported and exported pipe and are chewed, and there are up and down anti-deformation pressing plate and annular compress gasket and both sides one access road (6) and gasket seal (19) are housed afterwards, at bolt, nut (21) (22) fastening down, can become outer tunnel is fabricated welding multicore body assembly heat exchanger, quantity according to hole on the heat exchanger fin is formed different daughters with the position, can form crossfire (24) and stream (23), the various heat exchangers of (25) three kinds of forms of mixed flow.

2, heat exchanger according to claim 1, it is characterized in that: the formation of daughter is the heat exchanger fin that has 1-2 internal channel hole on it by 2, annular solder forms by carrying out at internal channel hole place, place, internal channel hole between two heat exchanger fins is because possible ripple height, can place the grommet (1) of sealing, and this grommet and upper and lower two heat exchanger fins carried out annular solder and sealing at the internal channel place, also can be in the direct annular solder in internal channel place together and sealing with two heat exchanger fins.

3, heat exchanger according to claim 1, it is characterized in that: as sealing with nonocclusive and U-shaped type bar (8) (7) (13) (15) and (11) can be according to different rigging positions, what have upper and lowerly has a seal groove, what have only monolaterally has a seal groove, have do not have fully seal groove arranged.

4, heat exchanger according to claim 1 is characterized in that: the heat exchange area of heat exchanger is changeable, can detect repair welding to each bar weld seam in manufacture process.Can open the circular weld that connects core body by shovel for welding multi chip module heat exchanger, and reject bad, the core body of changing.

5, heat exchanger according to claim 1, it is characterized in that: outer tunnel (6a) or (6) connect with core body or core component, available welding or with the gasket seal (19) of various cross sectional shapes and extraneous sealing, for outer tunnel (6) is to use bolt, and nut (21) is fastened on core body or core component both sides.

6, heat exchanger according to claim 1, it is characterized in that: the internal channel hole shape on each heat exchanger fin is not limit, hole count 1-2 can not have the internal channel hole fully yet, the position of this internal channel can be on heat exchanger fin any suitable position, import and export each pipe with internal channel and chew the heat exchanger fin that connects and internal channel hole thereof and can make and be suitable for pipe and chew the form of welding with it.

7, heat exchanger according to claim 1 is characterized in that: on heat exchange core body or the core component, following two ends be press with anti-deformation pull (2) (18) and annular compress gasket (17) and bolt, nut (22) is fastening.It is welded seal that heat exchange core body and internal channel import and export pipe are chewed (3).