Double-shell heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a double-shell heat exchanger which comprises shells, a heat medium inlet pipe is fixedly connected to the upper surface of each shell, a heat medium outlet pipe is fixedly connected to the lower surface of each shell, and a first inlet pipe is fixedly connected to the position, located on the left side of the heat medium inlet pipe, of the upper surface of each shell. A first outlet pipe is fixedly connected to the position, located on the right side of the heat medium inlet pipe, of the upper surface of the shell, a second inlet pipe is fixedly connected to the position, located on the left side of the heat medium outlet pipe, of the lower surface of the shell, a second outlet pipe is fixedly connected to the position, located on the right side of the heat medium outlet pipe, of the lower surface of the shell, and a heat exchange mechanism is arranged in the shell. Impurities in a heat medium are filtered through the filter plates in the filter mechanism, the motor drives the threaded rod to rotate, the filter plate originally located in the filter pipe is driven to move out of the filter pipe, and the filter plate originally located outside the filter pipe is driven to move into the filter pipe, so that switching use of the two filter plates is achieved; the blockage caused by long-time use of the same filter plate is avoided, and long-time shutdown and waiting are not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field, concretely is double -shell heat exchanger. BACKGROUND

[0002] The double -shell heat exchanger belongs to the common tube -shell heat exchanger, it can carry out heat exchange to two different cold media simultaneously, guarantees the isolation between hot medium and cold medium simultaneously, avoids cross -contamination;

[0003] The heat exchanger at present can not filter when hot fluid enters when using, so that the impurities enter the shell and affect the service life of the heat exchanger.

[0004] Chinese patent discloses a kind of double-shell heat exchanger (authorized announcement No.CN217844833U), the patent technology utilizes the threaded connection of filter cartridge and hot fluid import, so that filter cartridge can be installed, first filter screen and second filter screen are respectively arranged in the inside of filter cartridge from top to bottom, so that fluid will be filtered by first filter screen and second filter screen when entering, to avoid impurities entering the inside of heat exchanger main body and affecting the service life of heat exchanger main body, the setting is easy to install and disassemble, can effectively avoid impurities entering heat exchanger main body;

[0005] However, it has certain drawbacks: it is mainly filtered by the filter assembly consisting of first filter screen and second filter screen, once filter assembly is blocked, new filter assembly or the blocked filter assembly needs to be replaced manually and cleaned, which increases the complexity and cost of maintenance, since filter assembly is replaced frequently or the blocked filter assembly is cleaned, it needs to be shut down for a long time, which delays the work progress. Utility model content

[0006] The utility model aims at providing double-shell heat exchanger to solve the problems in the above background.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] Double-shell heat exchanger, including shell, the upper surface of shell is fixedly connected with hot medium inlet pipe, and the lower surface of shell is fixedly connected with hot medium outlet pipe, the left side of the upper surface of shell is fixedly connected with first inlet pipe, and the right side of the upper surface of shell is fixedly connected with first outlet pipe, the left side of the lower surface of shell is fixedly connected with second inlet pipe, and the right side of the lower surface of shell is fixedly connected with second outlet pipe, the inside of shell is provided with heat exchange mechanism;

[0009] The upper end of the heat medium inlet pipe is fixedly connected with a filter pipe, the inner upper end of the filter pipe is fixedly connected with a conical pipe, the upper surface of the shell is provided with a filtering mechanism between the heat medium inlet pipe and the first outlet pipe, the filtering mechanism comprises a supporting plate, the left side surface of the supporting plate is fixedly connected with a supporting rod, and the right side surface of the supporting plate is fixedly connected with a motor, the output end of the motor is fixedly connected with a threaded rod, and the left and right sides of the outer threaded rod are provided with filtering pieces.

[0010] As a further scheme of the utility model: the heat exchange mechanism comprises a transverse partition plate, a through hole is formed in the inner portion of the transverse partition plate, vertical partition plates are fixedly connected to the left and right sides of the through hole on the upper and lower side surfaces of the transverse partition plate, and a plurality of heat exchange pipes are connected through the left and right two vertical partition plates.

[0011] As a further scheme of the utility model: the two filtering pieces are respectively located on the left and right sides of the filter pipe, the filtering piece comprises a semicircular frame, a connecting rod is fixedly connected to the side surface of the semicircular frame away from the filter pipe, and a filter plate is fixedly connected to the side surface of the semicircular frame close to the filter pipe.

[0012] As a further scheme of the utility model: the lower end of the supporting plate is fixedly connected to the upper surface of the shell, and the threaded rod is located above the supporting rod.

[0013] As a further scheme of the utility model: the transverse partition plate is fixedly connected to the middle position in the inner portion of the shell, the vertical partition plates are fixedly connected to the inner surface of the shell, the heat medium inlet pipe is located between the upper two vertical partition plates, the heat medium outlet pipe is located between the lower two vertical partition plates, the upper two vertical partition plates are located between the first inlet pipe and the first outlet pipe, and the lower two vertical partition plates are located between the second inlet pipe and the second outlet pipe.

[0014] As a further scheme of the utility model: the two semicircular frames are movably penetrated through the left and right side surfaces of the filter pipe, the left semicircular frame is located below the right semicircular frame, the supporting rod is movably penetrated through the connecting rod, the threaded rod is screwed to the connecting rod, and the two filter plates are respectively located in the inner portion and the outer portion of the filter pipe.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1、The first inlet pipe and the first outlet pipe are used for the discharge of one cold medium, and the second inlet pipe and the second outlet pipe are used for the discharge of another cold medium, so that the heat exchange treatment of two cold media is realized.

[0017] 2, The utility model discloses a filter mechanism, and the filter plate in filter mechanism carries out the filtration to the impurity in hot medium, avoids its accumulation in the shell, and the motor drives the threaded rod to rotate, drives the filter plate originally located in the filter pipe to remove from the filter pipe, drives the filter plate originally located outside the filter pipe to move to the filter pipe, realizes the switching use of two filter plates, avoids the same filter plate to use the time too long and blocks up, and switching speed is faster, and one filter plate is in normal use, and staff can clean another filter plate, and do not need long time shutdown and wait. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structural diagram of double -shell heat exchanger;

[0019] Figure 2 It is the partial sectional view of double -shell heat exchanger;

[0020] Figure 3 It is the structural diagram of heat exchange mechanism in double -shell heat exchanger;

[0021] Figure 4 It is the sectional view of filter pipe in double -shell heat exchanger;

[0022] Figure 5 It is the structural diagram of filter mechanism in double -shell heat exchanger.

[0023] In the drawing: 1, shell;2, hot medium inlet pipe;3, hot medium outlet pipe;4, first inlet pipe;5, first outlet pipe;6, second inlet pipe;7, second outlet pipe;8, heat exchange mechanism;9, cross partition;10, through -hole;11, vertical partition;12, heat exchange pipe;13, filter pipe;14, tapered pipe;15, filter mechanism;16, support plate;17, support rod;18, motor;19, threaded rod;20, filter piece;21, semicircle frame;22, connecting rod;23, filter plate. DETAILED DESCRIPTION

[0024] Please refer to Figures 1 to 3The utility model discloses a double -shell heat exchanger, including the casing 1, the upper surface of casing 1 is fixedly connected with heat medium inlet pipe 2, and the lower surface of casing 1 is fixedly connected with heat medium outlet pipe 3, the upper surface of casing 1 is fixedly connected with first inlet pipe 4 at the left side of heat medium inlet pipe 2, and the upper surface of casing 1 is fixedly connected with first outlet pipe 5 at the right side of heat medium inlet pipe 2, the lower surface of casing 1 is fixedly connected with second inlet pipe 6 at the left side of heat medium outlet pipe 3, and the lower surface of casing 1 is fixedly connected with second outlet pipe 7 at the right side of heat medium outlet pipe 3, and the inside of casing 1 is provided with heat exchange mechanism 8, and heat exchange mechanism 8 includes transverse bulkhead 9, and transverse bulkhead 9 is fixedly connected at the inside intermediate position of casing 1, and the inside of transverse bulkhead 9 is provided with through -hole 10, and the upper and lower two sides surface of transverse bulkhead 9 is fixedly connected with vertical baffle 11 at the left and right sides of through -hole 10, and vertical baffle 11 is fixedly connected on the inside surface of casing 1, and heat medium inlet pipe 2 is located between the upper two vertical baffles 11, and heat medium outlet pipe 3 is located between the lower two vertical baffles 11, and the upper two vertical baffles 11 are located between first inlet pipe 4 and first outlet pipe 5, and the lower two vertical baffles 11 are located between second inlet pipe 6 and second outlet pipe 7, and a plurality of heat exchange pipes 12 are connected in common and are penetrated between the left and right two vertical baffles 11;

[0025] Transverse bulkhead 9 divides casing 1 into two parts; heat medium inlet pipe 2 and heat medium outlet pipe 3 are used for the discharge of heat medium; first inlet pipe 4 and first outlet pipe 5 are used for the discharge of one kind of cold medium, and second inlet pipe 6 and second outlet pipe 7 are used for the discharge of another kind of cold medium;

[0026] The heat exchange pipe 12 above transverse bulkhead 9 is used for the heat exchange of one kind of cold medium, and the heat exchange pipe 12 below transverse bulkhead 9 is used for the heat exchange of another kind of cold medium;

[0027] Through -hole 10 makes heat medium flow from the space above transverse bulkhead 9 to the space below, so that two kinds of cold medium are heat exchanged.

[0028] In Figure 1 、 Figures 3 to 5The upper end of the heat medium inlet pipe 2 is fixedly connected with a filter pipe 13, the inner upper end of the filter pipe 13 is fixedly connected with a conical pipe 14, the upper surface of the shell 1 is provided with a filtering mechanism 15 between the heat medium inlet pipe 2 and the first outlet pipe 5, the filtering mechanism 15 comprises a supporting plate 16, the lower end of the supporting plate 16 is fixedly connected to the upper surface of the shell 1, the left side surface of the supporting plate 16 is fixedly connected with a supporting rod 17, and the right side surface of the supporting plate 16 is fixedly connected with a motor 18, the output end of the motor 18 is fixedly connected with a threaded rod 19, the threaded rod 19 is located above the supporting rod 17, the outer left and right sides of the threaded rod 19 are provided with filter pieces 20, and the two filter pieces 20 are located on the left and right sides of the filter pipe 13 respectively, the filter piece 20 comprises a semicircular frame 21, the two semicircular frames 21 are movably penetrated through the left and right side surfaces of the filter pipe 13, the left semicircular frame 21 is located below the right semicircular frame 21, the side surface of the semicircular frame 21 away from the filter pipe 13 is fixedly connected with a connecting rod 22, the supporting rod 17 is movably penetrated through the connecting rod 22, the threaded rod 19 is penetrated through and screw-connected to the connecting rod 22, and the side surface of the semicircular frame 21 close to the filter pipe 13 is fixedly connected with a filter plate 23, the two filter plates 23 are located inside and outside the filter pipe 13 respectively;

[0029] The supporting rod 17 is located above the filter pipe 13;

[0030] The threads of the two connecting rods 22 are same, so that when the threaded rod 19 rotates, the two connecting rods 22 simultaneously move to the left or simultaneously move to the right;

[0031] Since the left semicircular frame 21 is located below the right semicircular frame 21, the length of the left connecting rod 22 is greater than that of the right connecting rod 22;

[0032] In the initial state, the left filter plate 23 is located inside the filter pipe 13, and the right filter plate 23 is located outside the filter pipe 13, when the right filter plate 23 moves to the inside of the filter pipe 13, the left filter plate 23 moves out of the inside of the filter pipe 13, the switching use of the two filter plates 23 is realized, the blockage caused by long-time use of the same filter plate 23 is avoided, and the switching can be realized without long-time shutdown, when one filter plate 23 is cleaned, the other filter plate 23 can normally work;

[0033] The semicircular frame 21 and the connecting rod 22 are fixedly connected through bolts;

[0034] When the semicircular frame 21 is located in the filter pipe 13, the left and right side surfaces thereof are flush with the inner and outer side surfaces of the filter pipe 13, at this time, the filter plate 23 is attached to the inner surface of the filter pipe 13;

[0035] The filter plate 23 is composed of a solid frame and a filter plate body fixedly connected to the inside of the solid frame, and is used for filtering impurities in the heat medium, so that the impurities are prevented from being accumulated in the shell 1 and adhered to the surface of the heat exchange pipe 12;

[0036] The tapered tube 14 prevents the hot medium discharged into the filter tube 13 from flowing to the inner surface of the filter tube 13, thus preventing it from flowing out from the notch.

[0037] The working principle of this utility model is as follows: During use, the hot medium is discharged into the hot medium inlet pipe 2 through the filter pipe 13. During this process, the left filter plate 23 filters the impurities in the hot medium. The hot medium is then discharged into the shell 1 through the hot medium inlet pipe 2. The hot medium flows from top to bottom through the through hole 10 and is finally discharged through the hot medium outlet pipe 3. A cold medium is discharged into the shell 1 through the first inlet pipe 4. After heat exchange through the upper heat exchange pipe 12, it is discharged through the first outlet pipe 5. Another cold medium is discharged into the shell 1 through the second inlet pipe 6. After heat exchange through the lower heat exchange pipe 12, it is discharged through the second outlet pipe 7. After a period of time, the discharge of hot medium is briefly stopped. During this period, the motor 18 drives the threaded rod 19 to rotate, causing both connecting rods 22 to move to the left, which moves the left filter plate 23 out of the filter pipe 13 and the right filter plate 23 into the filter pipe 13, realizing the switching of the two filter plates 23. The operator can then clean the left filter plate 23.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A double-shell heat exchanger, comprising a shell (1), wherein a heat medium inlet pipe (2) is fixedly connected to the upper surface of the shell (1), and a heat medium outlet pipe (3) is fixedly connected to the lower surface of the shell (1), wherein a first inlet pipe (4) is fixedly connected to the left side of the heat medium inlet pipe (2) on the upper surface of the shell (1), and a first outlet pipe (5) is fixedly connected to the right side of the heat medium inlet pipe (2) on the upper surface of the shell (1), a second inlet pipe (6) is fixedly connected to the left side of the heat medium outlet pipe (3) on the lower surface of the shell (1), and a second outlet pipe (7) is fixedly connected to the right side of the heat medium outlet pipe (3) on the lower surface of the shell (1), and a heat exchange mechanism (8) is provided inside the shell (1); Its features are, A filter tube (13) is fixedly connected to the upper end of the heat medium inlet pipe (2). A tapered tube (14) is fixedly connected to the upper end of the filter tube (13). A filter mechanism (15) is provided on the upper surface of the shell (1) between the heat medium inlet pipe (2) and the first outlet pipe (5). The filter mechanism (15) includes a support plate (16). A support rod (17) is fixedly connected to the left side surface of the support plate (16), and a motor (18) is fixedly connected to the right side surface of the support plate (16). A threaded rod (19) is fixedly connected to the output end of the motor (18). Filter elements (20) are provided on both the left and right sides of the threaded rod (19).

2. The double-shell heat exchanger according to claim 1, characterized in that, The heat exchange mechanism (8) includes a horizontal partition (9), with a through hole (10) inside the horizontal partition (9), and vertical partitions (11) are fixedly connected to the upper and lower surfaces of the horizontal partition (9) on the left and right sides of the through hole (10), and multiple heat exchange tubes (12) are connected through the two vertical partitions (11) on the left and right sides.

3. The double-shell heat exchanger according to claim 1, characterized in that, The two filter elements (20) are located on the left and right sides of the filter tube (13), respectively. The filter element (20) includes a semi-circular frame (21). A connecting rod (22) is fixed to the surface of the semi-circular frame (21) away from the filter tube (13), and a filter plate (23) is fixed to the surface of the semi-circular frame (21) close to the filter tube (13).

4. The double-shell heat exchanger according to claim 1, characterized in that, The lower end of the support plate (16) is fixed to the upper surface of the housing (1), and the threaded rod (19) is located above the support rod (17).

5. The double-shell heat exchanger according to claim 2, characterized in that, The horizontal partition (9) is fixed to the middle position inside the shell (1), the vertical partition (11) is fixed to the inner surface of the shell (1), the heat medium inlet pipe (2) is located between the two upper vertical partitions (11), the heat medium outlet pipe (3) is located between the two lower vertical partitions (11), the two upper vertical partitions (11) are located between the first inlet pipe (4) and the first outlet pipe (5), and the two lower vertical partitions (11) are located between the second inlet pipe (6) and the second outlet pipe (7).

6. The double-shell heat exchanger according to claim 3, characterized in that, The two semicircular frames (21) respectively movably penetrate the left and right sides of the filter tube (13), the left semicircular frame (21) is located below the right semicircular frame (21), the support rod (17) movably penetrates the connecting rod (22), the threaded rod (19) is threadedly connected to the connecting rod (22), and the two filter plates (23) are located inside and outside the filter tube (13) respectively.

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