CN219347430U - Tubular heat exchanger for chemical production - Google Patents

Abstract

The utility model provides a shell-and-tube heat exchanger for chemical production, which belongs to the technical field of heat exchangers, wherein a hot water outlet is formed in the upper end of a shell of the shell-and-tube heat exchanger, a hot water inlet is formed in the lower end of the shell, a plurality of supports are arranged on the outer ring of the shell, a vinyl chloride outlet is formed in the top end of an upper end socket, a vinyl chloride inlet is formed in the bottom end of a lower end socket, a plurality of baffle plates are fixedly arranged in the shell in a Z shape, an upper tube plate is arranged between the shell and the upper end socket, a lower tube plate is arranged between the shell and the lower end socket, a tube bundle is arranged in the shell, the tube bundle penetrates through the baffle plates, and two ends of the tube bundle are respectively fixed in through holes of the upper tube plate and the lower tube plate. Through the setting of this structure, it is very complicated in the structure to have solved the shell and tube heat exchanger of current chemical industry, and equipment is corroded easily, causes equipment structure to damage, again because of the heat exchanger of chemical industry all must need the equipment that the leakproofness is good, can not maintain, has increased the problem of enterprise's replacement equipment cost.

Description

Tubular heat exchanger for chemical production

Technical Field

The utility model relates to the technical field of heat exchangers, in particular to a tubular heat exchanger for chemical production.

Background

The shell and tube heat exchanger is the heat exchanger with the widest application in chemical industry and alcohol production. Is a device that transfers a portion of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. The heat exchanger plays an important role in chemical industry, petroleum, power, food and other industrial production, and can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in the chemical industry, so that the heat exchanger has wide application range. It mainly comprises a shell, a tube plate, a heat exchange tube, a sealing head, a baffle plate and the like. The required materials can be made of common carbon steel, red copper or stainless steel respectively.

The prior tubular heat exchanger in the chemical industry is complex in structure, equipment applied to the chemical industry is easy to corrode, equipment structure is damaged, and equipment with good sealing performance is needed for the heat exchanger in the chemical industry, so that maintenance cannot be performed, and equipment replacement cost of enterprises is increased.

Disclosure of Invention

The embodiment of the utility model provides a tubular heat exchanger for chemical production, which aims to solve the problems that the tubular heat exchanger in the existing chemical industry is complex in structure, equipment is easy to corrode, equipment structure is damaged, and equipment with good sealing performance is required for the heat exchanger in the chemical industry, so that maintenance cannot be performed, and the equipment replacement cost of enterprises is increased.

The embodiment of the utility model provides a tubular heat exchanger for chemical production, which comprises

The shell comprises a shell body, an end enclosure, baffle plates, tube plates and tube bundles, wherein a hot water outlet is formed in the upper end of the shell body, a hot water inlet is formed in the lower end of the shell body, a plurality of supports are arranged on the outer ring of the shell body, the number of the end enclosures is two, namely an upper end enclosure and a lower end enclosure, the upper end enclosure and the lower end enclosure are respectively arranged at the upper end and the lower end of the shell body, a chloroethylene outlet is formed in the top end of the upper end enclosure, a chloroethylene inlet is formed in the bottom end of the lower end enclosure, a plurality of baffle plates are fixedly arranged in the shell body in a Z shape, a plurality of through holes are formed in the baffle plates, the tube plates are divided into an upper tube plate and a lower tube plate, a plurality of through holes are formed in the corresponding positions of the upper tube plate and the lower tube plate, the upper tube plate is arranged at the top end of the shell body and is arranged between the upper end enclosure, the lower tube plate is arranged between the shell body and the lower end enclosure, the tube bundles are arranged inside the shell body, the tube bundles penetrate through the baffle plates, and the two ends of the tube bundles are respectively fixed in the through holes of the upper tube plate and the lower tube plate.

In this example, vinyl chloride was fed into the tube bundle from a vinyl chloride inlet, and the vinyl chloride flowed in the direction of the tube bundle and flowed out from a vinyl chloride outlet. Hot water is conveyed into the shell from the hot water inlet, flows through the hot water along the length direction of the baffle plates, flows into the next layer from the opening in the middle of the two baffle plates, and flows upwards in a Z-shaped way along the opening direction of the baffle plates. By adopting the Z-shaped baffle plate, even if the flow velocity is very small, the fluid can form strong disturbance outside the pipe, the contact area of cold and hot fluid is increased by the Z-shaped structure, and hot water with different temperatures in the shell can be fully and uniformly mixed. The heat exchange speed is higher, and the effect is more obvious. The single tube bundle is direct current, and the tube blocking or replacement can be carried out when the tube bundle is damaged. If scale is formed in the shell, the upper end socket and the lower end socket can be opened, and the tube side is cleaned by weak acid, and the weak acid entering the tube side and the scale in the cleaning are easily discharged as the tube bundles are all single direct insertion, so that the aim of cleaning is fulfilled. The heat exchanger with simple structure can bear higher pressure, has low manufacturing cost and can save cost.

In one embodiment of the utility model, a plurality of tube bundles are arranged, and two ends of the plurality of tube bundles are respectively and correspondingly connected with the through holes on the upper tube plate and the lower tube plate.

In this embodiment, the tube bundles are plural, two ends of the plural tube bundles are respectively connected with the through holes on the upper tube plate and the lower tube plate correspondingly, and the tube bundles are inserted into the two corresponding through holes, so that the tube bundles are fixedly connected with the upper tube plate and the lower tube plate.

In one embodiment of the utility model, the tube bundle is a parallel tube bundle or a spiral tube bundle.

In this embodiment, the tube bundle is a parallel tube bundle or a spiral tube bundle, when the hot water flows along the zigzag baffle direction, the hot water flows through the outer ring of the tube bundle, and when the outer ring of the tube bundle is spiral, the water flow also flows in a spiral rotation. Meanwhile, under the simultaneous action of the Z-shaped baffle plate and the spiral tube bundle, even if the flow velocity is very small, the fluid can form strong disturbance outside the tube, the contact area of cold and hot fluid is increased by the Z-shaped structure and the spiral shape, and hot water at different temperatures in the shell can be fully and uniformly mixed. The heat exchange speed is higher, and the effect is more obvious.

In one embodiment of the utility model, four seats are provided, and the four seats are evenly distributed on the outer ring of the shell.

In this embodiment, four seats are provided, and the four seats are evenly distributed on the outer ring of the housing. The heat exchanger is fixed through four evenly distributed supports, so that the heat exchanger is firmer and more stable.

In one embodiment of the utility model, the hot water inlet, the hot water outlet, the vinyl chloride inlet and the vinyl chloride outlet are all sealed by flange covers.

In this embodiment, the hot water inlet, the hot water outlet, the vinyl chloride inlet, and the vinyl chloride outlet are all sealed with flange covers. The flange cover can be detached and installed at any time, so that vinyl chloride can be replenished and discharged at any time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of a tube type heat exchanger for chemical production;

FIG. 2 is a schematic cross-sectional view of a tube type heat exchanger for chemical production provided by the utility model;

fig. 3 is a schematic view of two configurations of the tube bundle provided by the present utility model.

Icon: 10-a shell and tube heat exchanger for chemical production; 110-a housing; 111-a hot water outlet; 1111-a flange cover; 113-a hot water inlet; 115-support; 130-end socket; 131-upper end socket; 1311-vinyl chloride outlet; 133-lower end socket; 1331-vinyl chloride inlet; 150-baffle plate; 151-through holes; 170-tube sheet; 171-upper tube sheet; 173-lower tube sheet; 190-tube bundle;

description of the embodiments

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Examples

Referring to fig. 1, the present utility model provides a tube array heat exchanger 10 for chemical production.

Referring to fig. 1 and 2, a hot water outlet 111 is formed at an upper end of a shell 110, a hot water inlet 113 is formed at a lower end of the shell 110, a plurality of supports 115 are provided at outer rings of the shell 110, two sealing heads 130 are respectively an upper sealing head 131 and a lower sealing head 133, the upper sealing head 131 and the lower sealing head 133 are respectively arranged at upper and lower ends of the shell 110, a vinyl chloride outlet 1311 is formed at a top end of the upper sealing head 131, a vinyl chloride inlet 1331 is formed at a bottom end of the lower sealing head 133, a plurality of baffle plates 150 are fixedly arranged in the shell 110 in a zigzag shape, a plurality of through holes 151 are formed in the baffle plates 150, the tube plates 170 are divided into an upper tube plate 171 and a lower tube plate 173, a plurality of through holes 151 are formed in corresponding positions of the upper tube plate 171 and the lower tube plate 173, the upper tube plate 171 is arranged at a top end of the shell 110 and is arranged between the upper sealing head 131, the lower tube plate 173 is arranged at a bottom end of the shell 110 and the lower sealing head 133, the tube bundles 190 are arranged inside the shell 110, the tube bundles 190 are fixedly arranged at the through holes 151 and the lower tube plates 173 respectively.

In this example, in a specific embodiment, vinyl chloride is fed into the tube bundle 190 from a vinyl chloride inlet 1331, flows in the direction of the tube bundle 190, and flows out from a vinyl chloride outlet 1311. Hot water is conveyed into the shell 110 from the hot water inlet, flows through the length direction of the baffle plates 150, flows into the next layer from the opening between the two baffle plates 150, and flows upwards in a Z-shaped way along the opening direction of the baffle plates 150, so that the vinyl chloride can absorb heat, the hot water entering the shell 110 flows inwards, the water temperature is lower, and the heat exchange effect is achieved. By adopting the Z-shaped baffle plate 150, even under the condition of small flow velocity, the fluid can form strong disturbance outside the pipe, the contact area of cold and hot fluid is increased by the Z-shaped structure, and hot water with different temperatures in the shell 110 can be fully and uniformly mixed. The heat exchange speed is higher, and the effect is more obvious. The single tube bundle 190 is direct current and can be plugged or replaced when the tube bundle 190 is damaged. If scale is formed in the shell 110, the upper end socket 131 and the lower end socket 133 can be opened, and the tube side is cleaned by weak acid, and the weak acid entering the tube side and the scale cleaned are easily discharged because the tube bundle 190 is a single straight plug, so that the aim of cleaning is fulfilled. The heat exchanger with simple structure can bear higher pressure, has low manufacturing cost and can save cost.

Specifically, referring to fig. 1 and 2, there are a plurality of tube bundles 190, two ends of the plurality of tube bundles 190 are respectively and correspondingly connected to the through holes 151 on the upper tube plate 171 and the lower tube plate 173, and the tube bundles 190 are inserted into the two corresponding through holes 151, so that the tube bundles 190 are fixedly connected to the upper tube plate 171 and the lower tube plate 173.

Specifically, referring to fig. 1 and 3, the tube bundle 190 is a parallel tube bundle 190 or a spiral tube bundle 190, when hot water flows along the zigzag baffle 150, the hot water flows through the outer ring of the tube bundle 190, and when the outer ring of the tube bundle 190 is spiral, the water flow also flows in a spiral rotation. Meanwhile, under the simultaneous action of the Z-shaped baffle plate 150 and the spiral tube bundle 190, even if the flow velocity is very small, the fluid can form strong disturbance outside the tube, the contact area of cold and hot fluid is increased by the Z-shaped structure and the spiral shape, and hot water with different temperatures in the shell 110 can be fully and uniformly mixed. The heat exchange speed is higher, and the effect is more obvious.

Specifically, referring to fig. 1 and 2, four seats 115 are provided, and the four seats 115 are evenly distributed on the outer ring of the housing 110. The heat exchanger is fixed through four evenly distributed supports 115, so that the heat exchanger is firmer and more stable.

Specifically, referring to fig. 1 and 2, the hot water inlet 113, the hot water outlet 111, the vinyl chloride inlet 1331 and the vinyl chloride outlet 1311 are sealed by a flange cover 1111. The flange cover 1111 can be detached and installed at any time, so that vinyl chloride can be replenished and discharged at any time.

The working principle of the tube type heat exchanger 10 for chemical production provided by the embodiment of the utility model is as follows: in this embodiment, vinyl chloride is fed into the tube bundle 190 from a vinyl chloride inlet 1331, flows in the direction of the tube bundle 190, and flows out of the vinyl chloride outlet 1311. Hot water is conveyed into the shell 110 from the hot water inlet, flows through the length direction of the baffle plates 150, flows into the next layer from the opening between the two baffle plates 150, and flows upwards in a Z-shaped way along the opening direction of the baffle plates 150, so that the vinyl chloride can absorb heat, the hot water entering the shell 110 flows inwards, the water temperature is lower, and the heat exchange effect is achieved. By adopting the Z-shaped baffle plate 150, even under the condition of small flow velocity, the fluid can form strong disturbance outside the pipe, the contact area of cold and hot fluid is increased by the Z-shaped structure, and hot water with different temperatures in the shell 110 can be fully and uniformly mixed. The heat exchange speed is higher, and the effect is more obvious. The single tube bundle 190 is direct current and can be plugged or replaced when the tube bundle 190 is damaged. If scale is formed in the shell 110, the upper end socket 131 and the lower end socket 133 can be opened, and the tube side is cleaned by weak acid, and the weak acid entering the tube side and the scale cleaned are easily discharged because the tube bundle 190 is a single straight plug, so that the aim of cleaning is fulfilled. The heat exchanger with simple structure can bear higher pressure, has low manufacturing cost and can save cost. Through the setting of this structure, it is very complicated in the structure to have solved the shell and tube heat exchanger of current chemical industry, and equipment is corroded easily, causes equipment structure to damage, again because of the heat exchanger of chemical industry all must need the equipment that the leakproofness is good, can not maintain, has increased the problem of enterprise's replacement equipment cost.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. The utility model provides a shell and tube heat exchanger that chemical production used, its characterized in that includes casing, head, baffling board, tube sheet and tube bank, hot water export has been seted up to the casing upper end, and hot water import has been seted up to the lower extreme, the outer lane of casing is provided with a plurality of supports, the head sets up to two, is upper head and lower head respectively, the upper head with the lower head set up respectively in the upper and lower both ends of casing, the vinyl chloride export has been seted up on the top of upper head, the vinyl chloride import has been seted up to the bottom of lower head, the baffling board has the polylith the baffling board is Z style of calligraphy fixed set up in the casing, a plurality of through-holes have all been seted up to the baffling board, the tube sheet divide into upper tube sheet and lower tube sheet, upper tube sheet set up in the top of casing and set up between the upper head, the tube sheet set up in the bottom of casing, and set up in between the casing and the tube sheet, the baffling board passes respectively in the tube bank.

2. The shell and tube heat exchanger for chemical production according to claim 1, wherein the number of the tube bundles is plural, and two ends of the tube bundles are respectively and correspondingly connected with the through holes on the upper tube plate and the lower tube plate.

3. A shell and tube heat exchanger for chemical production according to claim 1, wherein the tube bundle is a parallel tube bundle or a spiral tube bundle.

4. The shell and tube heat exchanger for chemical production according to claim 1, wherein four of the supports are arranged on the outer ring of the shell and the four supports are evenly distributed on the outer ring of the shell.

5. The shell and tube heat exchanger for chemical production according to claim 1, wherein the hot water inlet, the hot water outlet, the vinyl chloride inlet and the vinyl chloride outlet are sealed by flange covers.

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