Exhaust and liquid discharge integrated horizontal non-detachable spiral plate heat exchanger

Abstract

The utility model relates to an exhaust and liquid drainage integrated horizontal type non-detachable spiral plate heat exchanger. Comprising a heat exchanger body and two headers, the two headers are arranged at the two ends of the heat exchanger body respectively and connected with the heat exchanger body in a welded mode, one header is communicated with all channels of first fluid, the other header is communicated with all channels of second fluid, the upper portions of the two headers are connected with exhaust pipes, and the lower portions of the two headers are connected with drain pipes. According to the horizontal spiral plate heat exchanger, the structural form of an original horizontal spiral plate heat exchanger is utilized, the collecting boxes for exhausting and discharging liquid are arranged at the two ends of the heat exchanger body respectively, each collecting box is composed of a semicircular pipe, and an exhaust pipe and a liquid discharging pipe are arranged on each collecting box.

Description

Technical Field

[0001] The utility model relates to the technical field of spiral plate heat exchangers, in particular to a horizontal non-detachable spiral plate heat exchanger with integrated exhaust and liquid discharge. Background Art

[0002] At present, environmental wastewater, sludge treatment, renewable energy, food, pharmaceutical, coking, agricultural, fine chemical and other industries make extensive use of spiral plate heat exchangers. The exhaust port of the existing spiral plate heat exchanger is set at the highest point of the pipeline where the inlet or outlet of the heat exchanger fluid is connected to the external pipe network, and the drain port is set at the lowest point of the pipeline. There are two major disadvantages in the use of the above-mentioned setting method, which are mainly manifested as follows: 1. When the existing horizontal spiral plate heat exchanger is shut down, the fluid on both sides of the heat exchanger body cannot be fully discharged; 2. The existing horizontal spiral plate heat exchanger has no exhaust pipe in the body, which makes it impossible to exhaust before the equipment is operated, and the non-condensable gas generated during the operation of the equipment cannot be discharged in time, thereby affecting its heat transfer performance. Now there is a need for a spiral plate heat exchanger that can solve the above-mentioned defects. Utility Model Content

[0003] The purpose of the utility model is to provide an integrated horizontal non-detachable spiral plate heat exchanger for exhaust and liquid discharge, so that the non-condensable gas can be discharged in time when the equipment is running, so that the heat exchange is more sufficient, and at the same time, the residual medium can be fully discharged when the equipment is shut down, avoiding damage to the equipment and process pollution in harsh environments.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A horizontal non-detachable spiral plate heat exchanger with integrated exhaust and liquid drainage comprises a heat exchanger body and two headers, the two headers are respectively arranged at both ends of the heat exchanger body and are welded to the heat exchanger body, one of the headers is connected to all channels of a first fluid, and the other header is connected to all channels of a second fluid, the upper parts of the two headers are connected to exhaust pipes, and the lower parts are connected to drain pipes.

[0006] The header is in the shape of a semicircular tube.

[0007] The headers are arranged on the longitudinal center lines at both ends of the heat exchanger body.

[0008] The utility model has the following advantages and positive effects:

[0009] 1. The utility model utilizes the structure of the original horizontal spiral plate heat exchanger, and respectively sets exhaust and drain headers at both ends of the heat exchanger body. The headers are composed of semicircular tubes, and exhaust pipes and drain pipes are set on the headers.

[0010] 2. Since the header is directly welded to both ends of the heat exchanger body to form an integrated structure, it is more compact and easier to install than the original structure that uses external pipes for exhaust and liquid discharge.

[0011] 3. The utility model integrates exhaust and liquid discharge, which is conducive to the complete discharge of residual fluid when the equipment is shut down, thereby avoiding the difficulty of equipment maintenance, freezing and cracking, and fluid pollution caused by incomplete discharge of equipment.

[0012] 4. The utility model integrates exhaust and liquid discharge, which is beneficial to the timely discharge of non-condensable gas when the equipment is running, thereby greatly improving the heat transfer capacity of the equipment, reducing the heat exchange area of ​​the equipment, and reducing equipment investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0014] Figure 1 This is the front view of the horizontal, non-detachable spiral plate heat exchanger with integrated exhaust and liquid discharge for this application;

[0015] Figure 2 This is a side view of the horizontal, non-detachable spiral plate heat exchanger with integrated exhaust and liquid discharge for this application;

[0016] Figure 3 This is a schematic diagram of the connection of the exhaust and liquid drainage header for this application.

[0017] Reference numerals:

[0018] Heat exchanger body 1; header 2; first inlet pipe 3; first outlet pipe 4; second inlet pipe 5; second outlet pipe 6; exhaust pipe 7; drain pipe 8. DETAILED DESCRIPTION

[0019] In order to solve the problems described in the background technology, this application makes partial improvements on the structure of the existing horizontal spiral plate heat exchanger, upgrading the original exhaust and liquid discharge form using the equipment connection pipe to a structure in which the equipment body can automatically exhaust and discharge the gas. This enables the equipment to be completely exhausted when it is shut down, and the non-condensable gas to be discharged in time when the equipment is running.

[0020] The application is described in detail below with reference to the accompanying drawings:

[0021] The purpose of this application is to provide a horizontal spiral plate heat exchanger with integrated exhaust and liquid discharge. The spiral plate heat exchanger can not only exhaust the equipment during shutdown for maintenance, but also discharge non-condensable gas during operation, thereby improving heat transfer performance, reducing heat source waste and equipment investment, and thus achieving energy-saving operation.

[0022] The exhaust and liquid-draining integrated horizontal non-detachable spiral plate heat exchanger comprises three main parts: a heat exchanger main body 1 and two headers 2 for exhaust and liquid drainage.

[0023] like Figure 1 As shown: the heat exchanger body 1 includes a first inlet pipe 3 and a first outlet pipe 4 for a first fluid, and a second inlet pipe 5 and a second outlet pipe 6 for a second fluid.

[0024] like Figure 2 As shown: two headers 2 for exhaust and liquid discharge are respectively arranged at the two ends of the heat exchanger body 1, and are respectively connected to all channels of the two fluids. The headers are arranged on the longitudinal center lines at the two ends of the heat exchanger body. The headers can be in various long strip shapes, preferably in the shape of long strip semicircular tubes. The first header is connected to all channels of the first fluid, and the second header is connected to all channels of the second fluid. The upper ends of the two headers are connected to exhaust pipes 7, and the lower ends are connected to drain pipes 8. The non-condensable gas in the first fluid and the second fluid circulating inside the heat exchanger body or the residual fluid during shutdown enters the header, and the drain pipe and exhaust pipe arranged on the header are used for draining and exhaust, forming an integrated horizontal spiral plate heat exchanger for exhaust and liquid discharge. The header is used to realize exhaust and liquid discharge on the heat exchanger body, avoiding gas or liquid accumulation inside the heat exchanger body. Gas accumulation is not conducive to heat exchange during equipment operation, and liquid accumulation is not conducive to the exhaustion of internal fluids during equipment maintenance. The above phenomenon is effectively avoided through the design of the header structure, which greatly improves the technical space for the application efficiency and maintenance convenience of the horizontal spiral plate heat exchanger in the process line.

[0025] like Figure 1 , 2 As shown, when the first fluid enters the heat exchanger body from the first inlet pipe and the second fluid enters the heat exchanger body from the second inlet pipe, the two fluids exchange heat, one fluid is cooled and the other fluid is heated. During the heat exchange process, the two fluids will carry more and more non-condensable gas, which seriously affects the heat exchange effect. At this time, the exhaust pipe of the header of this application is used to exhaust the gas in time to avoid the accumulation of non-condensable gas and affect the heat exchange; when the equipment is shut down, the residual fluid in the equipment enters the header and is drained using the drainage pipe set on the header to avoid freezing of the equipment and avoid process pollution of the new process line.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, rather than to limit them. Although the embodiments of the present invention have been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the embodiments of the present invention.

Claims

1. An exhaust and liquid discharge integrated horizontal non-detachable spiral plate heat exchanger, characterized in that: It includes a heat exchanger body and two headers, which are respectively arranged at both ends of the heat exchanger body and welded to the heat exchanger body. One of the headers is connected to all channels of the first fluid, and the other header is connected to all channels of the second fluid. The upper parts of the two headers are connected to exhaust pipes, and the lower parts are connected to drain pipes.

2. The exhaust and liquid discharge integrated horizontal non-detachable spiral plate heat exchanger according to claim 1, characterized in that: The header is in the shape of a semicircular tube.

3. The exhaust and liquid discharge integrated horizontal non-detachable spiral plate heat exchanger according to claim 1, characterized in that: The headers are arranged on the longitudinal center lines at both ends of the heat exchanger body.

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