CN217585442U

CN217585442U - Double-arch baffle plate shell-and-tube condenser

Info

Publication number: CN217585442U
Application number: CN202221515218.7U
Authority: CN
Inventors: 佘虎君; 赵柄冀; 王尚峰; 毛荐
Original assignee: Shenyang Blower Group Auxiliary Equipment Complete Engineering Co ltd
Current assignee: Shenyang Blower Group Auxiliary Equipment Complete Engineering Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-10-14
Anticipated expiration: 2032-06-17

Abstract

The utility model provides a double-bow baffle plate shell-and-tube condenser, include: the heat medium device comprises a shell, a heat medium inlet and a heat medium outlet are arranged on the shell; the two pipe boxes are arranged at two ends of the shell, and the cold medium inlet and the cold medium outlet are distributed on the same pipe box or on the two pipe boxes; the tube bundle comprises tube plates, a plurality of heat exchange tubes and a plurality of baffle plates, the tube plates are arranged at two ends of the shell and connected with the tube boxes, the plurality of heat exchange tubes penetrate through the baffle plates, and the tube plates are communicated with the two tube boxes; the plurality of baffle plates comprise middle baffle plates and side baffle plates which are transversely distributed along the shell at intervals in a staggered mode, the middle baffle plates are distributed in the middle of the shell along the longitudinal direction of the shell, and the side baffle plates are distributed on two sides of the middle of the shell in pairs along the longitudinal direction of the shell. Therefore, the structure of the product is compact, the problem of vibration of the heat exchange tube caused by large distance between the baffle plates can be reduced, and the reliability and the service life of the product are improved.

Description

Double-arch baffle plate shell-and-tube condenser

Technical Field

The utility model belongs to the technical field of the indirect heating equipment technique and specifically relates to a double bow baffling board shell and tube condenser is related to.

Background

The condenser is an energy-saving device for realizing heat transfer between materials, is a process device commonly applied to oil refining and chemical devices, and accounts for about 30 percent of the total equipment quantity. With the rapid development of industries such as petroleum, chemical industry, metallurgy and the like, the scale of petrochemical devices is increasingly large, and higher requirements are put forward for condensers.

The existing condenser is generally of a single-arch baffle plate structure, the pressure loss between an inlet and an outlet of a shell pass of the condenser is increased along with the increase of the flow of a shell pass medium, and the problem of overhigh loss is solved by increasing the distance between baffles. However, the maximum unsupported span of the baffle plate is limited by the manufacturing standard of the heat exchanger, and in addition, the problem of tube bundle vibration is caused by the increase of the distance between the baffle plates, so that the service life of the condenser equipment is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a double-bow baffling board, its compact structure can reduce the problem of the heat exchange tube vibration that arouses because of the baffling board interval is great, is favorable to improving the reliability and the life of product.

The embodiment of the utility model provides a double-bow baffling board shell and tube condenser, include: the heat medium heating device comprises a shell, a heating medium inlet and a heating medium outlet are arranged on the shell; the two pipe boxes are arranged at two ends of the shell, and the cold medium inlet and the cold medium outlet are distributed on the same pipe box or on the two pipe boxes; the tube bundle comprises tube plates, a plurality of heat exchange tubes and a plurality of baffle plates, the tube plates are arranged at two ends of the shell and connected with the tube boxes, the plurality of heat exchange tubes are arranged on the baffle plates in a penetrating manner, and the tube plates are communicated with the two tube boxes; the plurality of baffle plates comprise middle baffle plates and side baffle plates which are transversely distributed along the shell at intervals in a staggered manner, the middle baffle plates are distributed in the middle of the shell along the longitudinal direction of the shell, and the side baffle plates are distributed on two sides of the middle of the shell in pairs along the longitudinal direction of the shell.

Furthermore, the middle baffle plate comprises first arc-shaped sections which are oppositely arranged and a first straight line section which is positioned between the two first arc-shaped sections, the diameter of each first arc-shaped section is smaller than the inner diameter of the shell, and the first straight line section is vertical to the longitudinal direction of the shell; the side baffle plate comprises a second arc-shaped section and a second straight section which are connected, the diameter of the second arc-shaped section is smaller than the inner diameter of the shell, and the second straight section is vertical to the longitudinal direction of the shell.

Further, the tube bundle further comprises: the pull rods are arranged in the shell and penetrate through the baffle plate, one end of each pull rod is connected with one tube plate, and the other end of each pull rod is connected with the baffle plate which is arranged close to the other tube plate; and the distance pipe is sleeved outside the pull rod and positioned between two adjacent middle baffle plates and/or positioned between two adjacent side baffle plates.

Further, the tube box comprises a first tube box and a second tube box, the first tube box is provided with two independent chambers, the cold medium inlet is communicated with one chamber, the cold medium outlet is communicated with the other chamber, and the plurality of heat exchange tubes are respectively communicated with the two chambers.

Further, the double-arch baffle shell-and-tube condenser further comprises: the baffle, the baffle sets up in first pipe case, and two cavities are including the first cavity that is located the baffle top and the second cavity that is located the baffle below, and cold medium entry and first cavity intercommunication, cold medium export and second cavity are connected.

Further, the tube plate comprises a first tube plate connected with the first tube box, a first heat exchange tube hole and a first installation groove are formed in the first tube plate, the heat exchange tube penetrates through the first heat exchange tube hole to be connected with the first tube plate, and the partition plate is connected with the first tube plate through the first installation groove.

Furthermore, the tube plate comprises a second tube plate connected with the second tube box, a second heat exchange tube hole is formed in the second tube plate, and the heat exchange tube penetrates through the second heat exchange tube hole to be connected with the second tube plate.

Further, the second header tank is provided with a first drain port and a first drain port.

Furthermore, a second exhaust port and a second liquid outlet are further arranged on the shell.

Further, the double-arch baffle shell-and-tube condenser further comprises: the tube plate is provided with a connecting flange, and the connecting piece penetrates through the connecting hole to be connected with the connecting flange.

The embodiment of the utility model provides a double-bow baffling board shell and tube condenser adopts double-bow baffling board, compares with traditional single-bow baffling board shell and tube condenser, has reduced the pressure difference of import and export of condenser shell side medium under the same condition, has improved the heat transfer efficiency of condenser, has reduced the equipment volume to compact structure, the reliability is high, and processing is simple, low in manufacturing cost.

The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. Wherein:

fig. 1 is a schematic structural diagram of a double-arch baffle shell-and-tube condenser provided by an embodiment of the present invention;

fig. 2 is a schematic view of a tube bundle structure of a double-arch baffle shell-and-tube condenser provided by an embodiment of the present invention;

fig. 3 is a schematic view of a shell structure of a double-arch baffle shell-and-tube condenser provided by an embodiment of the present invention;

fig. 4 is a schematic view of a first tube box structure of a double-arch baffle shell-and-tube condenser according to an embodiment of the present invention;

FIG. 5 is a schematic diagram illustrating another perspective of the embodiment of FIG. 4;

fig. 6 is a schematic diagram of a second tube box structure of a double-arch baffle shell-and-tube condenser according to an embodiment of the present invention;

FIG. 7 is a schematic diagram illustrating another perspective of the embodiment of FIG. 6;

fig. 8 is a schematic view of a heat exchange tube structure of a double-arch baffle shell-and-tube condenser provided by an embodiment of the present invention;

fig. 9 is a schematic diagram of an intermediate baffle structure of a double-bow baffle shell-and-tube condenser according to an embodiment of the present invention;

fig. 10 is a schematic view of a side baffle plate structure of a double-arch baffle plate shell-and-tube condenser according to an embodiment of the present invention;

fig. 11 is a schematic diagram of a first tube plate structure of a double-arch baffle shell-and-tube condenser according to an embodiment of the present invention;

fig. 12 is a schematic diagram of a second tube sheet structure of a double-arch baffle shell-and-tube condenser according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 12 is:

110 shell, 111 hot medium inlet, 112 hot medium outlet, 113 second vent, 114 second drain, 115 support, 120 first tube box, 121 baffle, 122 first chamber, 123 second chamber, 124 cold medium inlet, 125 cold medium outlet, 126 connection flange, 1261 flange screw hole, 130 second tube box, 131 first vent, 132 first drain, 140 tube bundle, 141 first tube sheet, 1411 first heat exchange tube hole, 1412 first tie rod hole, 1413 first mounting groove, 1414 first connection hole, 142 second tube sheet, 1421 second heat exchange tube hole, 1422 second connection hole, 150 heat exchange tube, 160 baffle plate, 161 intermediate baffle plate, 1611 first arc segment, 1612 first straight segment, 1613 third heat exchange tube hole, 1614 second tie rod hole, 162 side baffle plate, 1621 second arc segment, 1622 second tube hole, 1623 fourth tie rod hole, 1624 third tie rod hole, 170 tie rod.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A double-arch baffle shell-and-tube condenser provided in accordance with some embodiments of the present invention is described below with reference to fig. 1-12.

As shown in fig. 1, the embodiment of the present invention provides a double-arch baffle shell-and-tube condenser, comprising: a shell 110, two headers and a tube bundle 140. The housing 110 is provided with a heat medium inlet 111 and a heat medium outlet 112, specifically, the heat medium inlet may be a gas inlet, the heat medium outlet may be a liquid outlet, two tube boxes are disposed at two ends of the housing 110 and surround the housing 110 to form an accommodating cavity, the cold medium inlet 124 and the cold medium outlet 125 are distributed on the same tube box or distributed on the two tube boxes, specifically, the cold medium inlet may be a liquid inlet, and the cold medium outlet may be a liquid outlet.

As shown in fig. 1, 2 and 8, the tube bundle 140 is disposed inside the accommodating cavity, the tube bundle 140 includes a tube plate, a plurality of heat exchange tubes 150 and a plurality of baffles 160, the tube plate is disposed at two ends of the shell 110 and connected to the tube boxes, for example, the tube plate is welded at two ends of the shell 110 and used for being connected to the tube boxes, the plurality of heat exchange tubes 150 are disposed through the baffles 160 and the tube plate to communicate with the two tube boxes, that is, the baffles 160 support and fix the heat exchange tubes 150.

The plurality of baffles 160 includes middle baffles 161 and side baffles 162 spaced and staggered along the transverse direction of the shell 110, the middle baffles 161 are distributed in the middle of the shell 110 along the longitudinal direction of the shell 110, and the side baffles 162 are distributed in pairs on two sides of the middle of the shell 110 along the longitudinal direction of the shell 110. Here, the transverse direction of the housing 110 may be understood as the longitudinal direction of the housing 110, as indicated by an arrow X in fig. 1, and the longitudinal direction of the housing 110 may be understood as the width direction of the housing 110, as shown by a letter Y in fig. 1, and it may be understood that the longitudinal direction of the housing 110 may also be perpendicular to the paper surface outward direction as shown in fig. 1.

That is to say, the embodiment of the utility model provides a double-arch baffling board shell and tube condenser, middle baffling board 161 and the side baffling board 162 that sets up in pairs constitute double-arch structure, double-arch structure's baffling board 160 is compared with the baffling board of single-arch structure in the correlation technique, under the condition of solving same condenser import and export pressure drop, interval between two adjacent baffling boards 160 will be less than the interval between two adjacent baffling boards 160 in the single-arch structure in the double-arch structure, make the compact structure of product, good supporting role has been played heat exchange tube 150, can avoid the problem of the great production bank of tubes 140 vibrations of heat exchange tube 160 interval because of single-arch structure in the correlation technique, and then can reduce 150's vibration, be favorable to improving condenser's reliability and life.

Further, the middle baffle 161 is distributed in the middle portion of the shell 110 along the longitudinal direction of the shell 110, and the side baffles 162 are distributed in pairs on both sides of the middle portion of the shell 110 along the longitudinal direction of the shell 110, that is, the side baffles 162 are arranged in pairs, and as viewed in the longitudinal direction of the shell 110, the side baffles 162, the middle baffle 161, and the side baffles 162 are in turn arranged to form a double-arch structure. Here, the side baffles 162 and the middle baffles 161 are alternately arranged in sequence, or the middle baffles 161 and the side baffles 162 are alternately arranged in sequence, as viewed in the lateral direction of the casing 110.

Further, the cold medium inlet 124 and the cold medium outlet 125 may be disposed on the same tube box, or may be disposed on different tube boxes, so as to meet the requirements of different structures of the condenser, and expand the application range of the product.

In the above embodiment, as shown in fig. 9, the intermediate baffle 161 includes first arc-shaped sections 1611 arranged oppositely and a first straight line section 1612 located between the two first arc-shaped sections 1611, the diameter of the first arc-shaped sections 1611 is smaller than the inner diameter of the casing 110, and the first straight line section 1612 is perpendicular to the longitudinal direction of the casing 110, that is, the first straight line section 1612 extends along the height direction of the casing 110, and the height direction of the casing 110 is shown by an arrow Z in fig. 1. Wherein the first arced segment 1611 is disposed near the top and bottom of the housing 110.

In the above embodiment, as shown in fig. 10, the side baffle 162 includes a second arc-shaped section 1621 and a second straight section 1622 connected to each other, that is, the side baffle 162 has an arc-shaped structure, the diameter of the second arc-shaped section 1621 is smaller than the inner diameter of the casing 110, the second straight section 1622 is perpendicular to the longitudinal direction of the casing 110, that is, the second straight section 1622 is parallel to the first straight section 1612 of the middle baffle 161, the second straight line extends along the height direction of the casing 110, and the second arc-shaped section 1621 is disposed near the side of the casing 110.

In some possible embodiments provided by the present invention, as shown in fig. 1 and fig. 2, the tube bundle 140 further includes a plurality of tie rods 170, the tie rods 170 are disposed inside the shell 110 and penetrate through the baffle 160, and the baffle 160 is supported and fixed by the tie rods 170, so that the baffle 160 is reliably disposed inside the shell 110, wherein one end of the tie rod 170 is connected to one tube plate, and the other end of the tie rod 170 is connected to the baffle 160 disposed near another tube plate.

Wherein, the tube bundle 140 further comprises distance tubes, which are sleeved outside the tie-rods 170 and are located between two adjacent middle baffles 161 and/or between two adjacent side baffles 162. It will be appreciated that a distance tube can be provided between two adjacent intermediate baffles 161, a distance tube can be provided between two adjacent side baffles 162, or a distance tube can be provided between two adjacent intermediate baffles 161 and two adjacent side baffles 162.

The arrangement of the distance tubes can reliably determine the position of the baffle 160 in the shell 110, and at the same time, the distance tubes can well determine the distance between two adjacent intermediate baffles 161 and two adjacent side baffles 162, so that the distance between two adjacent intermediate baffles 161 and two adjacent side baffles 162 is reliable, thereby having good supporting and fixing effects on the tube bundle of the condenser, providing the stability of the tube bundle 140, and improving the reliability of the equipment.

As shown in fig. 1, in some possible embodiments of the present invention, the tube box includes a first tube box 120 and a second tube box 130, for example, the first tube box 120 is located on the right side of the housing 110, and the second tube box 130 is located on the left side of the housing 110, it is understood that the first tube box 120 may also be located on the left side of the housing 110, and the second tube box 130 may also be located on the right side of the housing 110. The present invention is described with the first channel box 120 located on the right side of the housing 110 and the second channel box 130 located on the left side of the housing 110.

As shown in fig. 1, 4 and 5, in which the first header 120 is provided with two independent chambers, the cooling medium inlet 124 is communicated with one chamber, the cooling medium outlet 125 is communicated with the other chamber, and the plurality of heat exchange tubes 150 are respectively communicated with the two chambers.

That is, the heat exchange tube 150 includes a first portion and a second portion, the first portion of the heat exchange tube 150 communicates with one chamber and the second tube box 130, and the second portion of the heat exchange tube 150 communicates with the other chamber and the second tube box 130, so that after a cooling medium enters one chamber from the cooling medium inlet 124, the cooling medium flows into the second tube box 130 from the first portion of the heat exchange tube 150, returns to the other chamber from the second portion of the heat exchange tube 150, and flows out through the cooling medium outlet 125, the heating medium enters the tube bundle 140 from the heating medium inlet 111 of the shell 110, and continuously changes the flowing direction of the heating medium through the side baffles 162 and the middle baffle 161, and flows out through the heating medium outlet 112 on the shell 110, so that the cooling medium in the heat exchange tube 150 exchanges heat with the heating medium flowing in the shell 110, and thus double-pass heat exchange can be realized, and the heat exchange efficiency can be improved.

Further, as shown in fig. 4 and 5, the double-arch baffle shell-and-tube condenser further includes a partition plate 121, and the partition plate 121 is disposed in the first tube box 120, that is, the first tube box 120 is divided into two chambers by the partition plate 121, and the double-arch baffle shell-and-tube condenser has a simple structure and a low cost.

The two chambers include a first chamber 122 located above the partition plate 121 and a second chamber 123 located below the partition plate 121, the cold medium inlet 124 is communicated with the first chamber 122, the cold medium outlet 125 is communicated with the second chamber 123, for example, the cold medium inlet 124 is disposed at the top of the first tube box 120, and the cold medium outlet 125 is disposed at the bottom of the first tube box 120, since the cold medium is a liquid medium in general, the cold medium inlet 124 is disposed at the top of the first tube box 120, and the cold medium outlet 125 is disposed at the bottom of the first tube box 120, which facilitates the circulation of the liquid cold medium, is beneficial to improving the circulation efficiency of the liquid cold medium, and further ensures good heat exchange efficiency. It will be appreciated that the cooling medium inlet 124 and the cooling medium outlet 125 may be arranged at other locations as well as being satisfactory for the requirements

That is, the first portion of the heat exchange tubes 150 communicates the first chamber 122 with the second tube box 130, and the second portion of the heat exchange tubes 150 communicates the second chamber 123 with the second tube box 130, so that the refrigerant, after entering the first chamber 122 through the refrigerant inlet 124, flows into the second tube box 130 through the first portion of the heat exchange tubes 150, returns to the second chamber 123 through the second portion of the heat exchange tubes 150, and flows out through the refrigerant outlet 125.

Further, as shown in fig. 1, 6 and 7, the second tube box 130 is provided with a first gas outlet 131 and a first liquid outlet 132, the first gas outlet 131 is used for discharging the gas remaining in the second tube box 130 to the outside of the second tube box 130, and the first liquid outlet 132 is used for discharging the liquid remaining in the second tube box 130 to the outside of the second tube box 130, so as to improve the thoroughness of discharging the gas and the liquid in the second tube box 130. Specifically, the first exhaust port 131 is disposed at the top of the second pipe box 130, and the first exhaust port 132 is disposed at the bottom of the second pipe box 130, it is understood that the first exhaust port 132 and the first exhaust port 131 may be disposed at other positions as required.

Further, as shown in fig. 3, the heat medium inlet 111 is disposed near the first header 120, such as the heat medium inlet 111 disposed at the top of the housing 110 and near the first chamber 122, and the heat medium outlet 112 is disposed at the bottom of the housing 110, such as the heat medium outlet 112 disposed near the second header 130. Specifically, the heat medium liquid port may be a gas inlet, and the heat medium outlet 112 may be a liquid outlet. It is understood that the heat medium inlet 111 and the heat medium outlet 112 may be disposed at other positions as required.

Further, as shown in fig. 3, the housing 110 is further provided with a second exhaust port 113 and a second liquid outlet 114, the second exhaust port 113 is disposed at the top of the housing 110, and the second liquid outlet 114 is disposed at the bottom of the housing 110, it is understood that the second exhaust port 113 and the second liquid outlet 114 may be disposed at other positions as required. The second exhaust port 113 is used for exhausting the gas remained in the casing 110 to the outside of the casing 110, and the second drain port 114 is used for exhausting the liquid remained in the casing 110 to the outside of the casing 110, so as to improve the exhausting thoroughness of the gas and the liquid in the casing 110 through the second exhaust port 113 and the second drain port 114.

In some possible embodiments, as shown in fig. 1 and 2, the tube plate includes a first tube plate 141 and a second tube plate 142, the first tube plate 141 is connected to the first tube box 120, and the second tube plate 142 is connected to the second tube box 130.

As shown in fig. 11, a first heat exchange tube hole 1411 and a first installation groove 1413 are formed in the first tube plate 141, the heat exchange tube 150 passes through the first heat exchange tube hole 1411 and is connected to the first tube plate 141, for example, the heat exchange tube 150 passes through the first heat exchange tube hole 1411 and is communicated with the first tube box 120 and is welded to the first tube plate 141, and the partition plate 121 is connected to the first tube plate 141 through the first installation groove 1413, for example, the partition plate 121 is inserted into the first installation groove 1413.

Further, a first tie rod hole 1412 is further formed in the first tube plate 141, one end of the tie rod 170 penetrates through the first tie rod hole 1412 to be connected with the first tube plate 141, and the other end of the tie rod 170 is connected with the baffle 160 disposed close to the second tube plate 142. Specifically, the first pull rod hole 1412 is an internally threaded hole, the end of the pull rod 170 is threaded, and the end of the pull rod 170 is connected to the first pull rod hole 1412 through the threaded structure.

As shown in fig. 12, a second heat exchange tube hole 1421 is formed in the second tube sheet 142, and the heat exchange tube 150 passes through the second heat exchange tube hole 1421 to be connected to the second tube sheet 142, and further communicates with the second tube box 130. Specifically, the ends of the heat exchange tubes 150 are welded to the second tube sheet 142 after passing through the second heat exchange tube holes 1421 to communicate with the second tube box 130.

Further, as shown in fig. 9, the middle baffle plate 161 is provided with a third heat exchange pipe hole 1613 and a second tie rod hole 1614, and as shown in fig. 10, the side baffle plate 162 is provided with a fourth heat exchange pipe hole 1623 and a third tie rod hole 1624. The heat exchange tubes 150 are light pipes, and in the direction from the first tube box 120 to the second tube box 130, the heat exchange tubes 150 sequentially pass through the first tube plate 141, the middle baffle plate 161 or the side baffle plate 162, and the second tube plate 142 to communicate the first tube box 120 and the second tube box 130, wherein two ends of the heat exchange tubes 150 can be welded on the first tube plate 141 and the second tube plate 142 respectively.

From the first tube box 120 to the second tube box 130, the pull rod 170 sequentially passes through the first tube plate 141, the middle baffle plate 161 or the side baffle plate 162 and is connected with the baffle plate 160 close to the second tube box 130, specifically, the head end of the pull rod 170 is provided with a thread structure and is connected with a thread hole on the first tube plate 141 through the thread structure; the tail end of the pull rod 170 is provided with a thread, and the connection of the tail end of the pull rod 170 with a fastening nut can fix the pull rod 170 with the side baffle plate 162 and the distance tube, or fix the pull rod 170 with the middle baffle plate 161 and the distance tube.

In the embodiment that some probably realize that the utility model provides an, double bow baffling board shell and tube condenser still includes the connecting piece, as shown in fig. 4 to 7, the one end of pipe case is the opening, and the opening is circular, and the other end of pipe case is the enclosed construction, and the open end of pipe case is provided with flange 126, and the tube sheet is the circular slab, is provided with the connecting hole on the circumferencial direction of tube sheet, and the connecting piece passes the connecting hole to be connected with flange 126, and then can realize being connected tube sheet and pipe case.

Specifically, the connecting members are bolts, as shown in fig. 4 and 11, the first tube plate 141 is provided with a first connecting hole 1414, the connecting flange 126 of the first tube box 120 is provided with a flange threaded hole 1261, and the bolts pass through the first connecting hole 1414 and then are connected with the flange threaded hole 1261, so that the first tube plate 141 and the first tube box 120 can be reliably connected. As shown in fig. 6 and 12, the second tube plate 142 is provided with a second connection hole 1422, the connection flange 126 of the second tube box 130 is provided with a flange screw hole 1261, and a bolt is connected to the flange screw hole 1261 after passing through the second connection hole 1422, so that the second tube plate 142 and the second tube box 130 can be reliably connected.

Further, as shown in FIG. 1, the bottom of shell 110 is provided with a support 115, and support 115 provides some support for shell 110 for mounting the double-arch baffle shell-and-tube heat exchanger on other components or in place.

The utility model provides a pair of double-bow baffle shell-and-tube heat exchanger, as shown in figure 1, its theory of operation as follows:

the heat medium enters the shell 110 from the heat medium inlet 111 (such as a gas inlet) of the shell 110, changes the flowing direction of the heat medium in the tube bundle 140 through the second straight line segment 1622 of the side baffle 162 and the first straight line segment 1612 of the middle baffle 161, and finally flows out of the shell 110 from the heat medium outlet 112 (such as a liquid outlet) on the shell 110.

The cooling medium enters the first chamber 122 of the first header 120 through the cooling medium inlet 124 (e.g., liquid inlet) of the first header 120, flows into the second header 130 through the first portion of the heat exchange tubes 150 located at the upper half, flows into the second chamber 123 of the first header 120 through the second portion of the heat exchange tubes 150 located at the lower half, and finally flows out of the first header 120 through the cooling medium outlet 125 (e.g., liquid outlet).

The utility model provides a pair of double-arch baffling board shell-and-tube condenser compares with traditional single shell journey single-arch baffling board shell-and-tube heat exchanger, under the same conditions such as medium flow, pressure, temperature, heat exchange tube quantity, the shell journey is imported and exported the loss of pressure between and is reduced, and heat exchange tube 150 length shortens to reduce the volume of heat exchanger, reduce cost. It is shown as table 1 specifically, table 1 does the utility model provides a parameter contrast table of double-arch baffle plate shell-and-tube condenser and traditional single shell journey single-arch baffle plate shell-and-tube condenser.

TABLE 1

Therefore, the utility model provides a double-bow baffling board shell and tube condenser, its coefficient of heat transfer is big, improves the heat transfer efficiency of condenser to compact structure, processing is simple, low in manufacturing cost.

In the description of the present invention, the term "plurality" means two or more, unless otherwise specifically defined, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the drawings, and are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the present disclosure, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-arch baffle shell-and-tube condenser, comprising:

the heat medium device comprises a shell, a heat medium inlet and a heat medium outlet are arranged on the shell;

the two pipe boxes are arranged at two ends of the shell, and a cold medium inlet and a cold medium outlet are distributed on the same pipe box or on the two pipe boxes;

the tube bundle comprises tube plates, a plurality of heat exchange tubes and a plurality of baffle plates, the tube plates are arranged at two ends of the shell and connected with the tube boxes, the plurality of heat exchange tubes penetrate through the baffle plates, and the tube plates are communicated with the two tube boxes;

the plurality of baffles comprise middle baffles and side baffles which are transversely distributed along the shell at intervals in a staggered manner, the middle baffles are distributed in the middle of the shell along the longitudinal direction of the shell, and the side baffles are distributed on two sides of the middle of the shell in pairs along the longitudinal direction of the shell.

2. The double-arch baffle shell-and-tube condenser of claim 1 wherein,

the middle baffle plate comprises first arc-shaped sections and a first straight line section, the first arc-shaped sections are oppositely arranged, the first straight line section is positioned between the two first arc-shaped sections, the diameter of each first arc-shaped section is smaller than the inner diameter of the shell, and the first straight line section is vertical to the longitudinal direction of the shell;

the side baffle plate comprises a second arc-shaped section and a second straight line section which are connected, the diameter of the second arc-shaped section is smaller than the inner diameter of the shell, and the second straight line section is vertical to the longitudinal direction of the shell.

3. The double-arch baffle shell-and-tube condenser of claim 1 wherein the tube bundle further comprises:

the pull rods are arranged in the shell and penetrate through the baffle plate, one end of each pull rod is connected with one of the tube plates, and the other end of each pull rod is connected with the baffle plate arranged close to the other tube plate;

and the distance pipe is sleeved outside the pull rod and positioned between two adjacent middle baffle plates and/or positioned between two adjacent side baffle plates.

4. The double-arch baffle shell-and-tube condenser of claim 1 wherein,

the heat exchange tube box comprises a first tube box and a second tube box, the first tube box is provided with two independent cavities, the cold medium inlet is communicated with one cavity, the cold medium outlet is communicated with the other cavity, and the heat exchange tubes are respectively communicated with the two cavities.

5. The double-arch baffle shell-and-tube condenser of claim 4 further comprising:

the partition plate is arranged in the first pipe box, the two chambers comprise a first chamber located above the partition plate and a second chamber located below the partition plate, the cold medium inlet is communicated with the first chamber, and the cold medium outlet is connected with the second chamber.

6. The double-arch baffle shell-and-tube condenser of claim 5 wherein,

the tube plate comprises a first tube plate connected with the first tube box, a first heat exchange tube hole and a first installation groove are formed in the first tube plate, the heat exchange tube penetrates through the first heat exchange tube hole and is connected with the first tube plate, and the partition plate is connected with the first tube plate through the first installation groove.

7. The double-arch baffle shell-and-tube condenser of claim 5 wherein,

the tube plate comprises a second tube plate connected with the second tube box, a second heat exchange tube hole is formed in the second tube plate, and the heat exchange tube penetrates through the second heat exchange tube hole and is connected with the second tube plate.

8. The double-arch baffle shell-and-tube condenser of claim 5 wherein,

the second header is provided with a first gas vent and a first drain port.

9. The double-arch baffle shell-and-tube condenser of any one of claims 1 to 8,

the shell is also provided with a second exhaust port and a second liquid outlet.

10. The double-arch baffle shell-and-tube condenser as recited in any one of claims 1 to 8, further comprising:

the tube plate is provided with a connecting hole, and the connecting piece penetrates through the connecting hole to be connected with the connecting flange.