Leakage-proof heat exchanger

Abstract

The utility model provides a liquid leakage prevention heat exchanger, which comprises a heat exchanger main frame, a heat exchange sheet, a sealing gasket and a locking piece, and a left plate is arranged at the left end of the heat exchanger main frame. The grooves and the protrusions at the lower ends of the multiple sets of heat exchange pieces are sequentially clamped from the broken groove position of the upper frame rod, the guide rails are embedded into the guide grooves and slide towards the left end, the sealing gaskets are arranged between every two adjacent sets of heat exchange pieces and can be sealed through embedding of the embedding rubber mats and the embedding grooves, the sealing performance of the two ends can be improved through the sealing rings at the two ends, and therefore the sealing performance of the heat exchange pieces is improved. By additionally arranging the left liquid guide pipe, the connecting flange and the right liquid guide pipe, liquid can be conveniently guided into the heat exchanger, and by additionally arranging the heat exchanger main frame, the locking piece and the heat exchanger auxiliary frame, the heat exchanger can be conveniently disassembled and assembled.

Description

Technical Field

[0001] The utility model belongs to the technical field of plate heat exchangers, and particularly relates to a liquid leakage-proof heat exchanger. Background Art

[0002] The plate heat exchanger is a highly efficient and compact heat exchange device. It is made of a series of corrugated metal plates, forming multiple very thin rectangular channels between the plates. During operation, two media with different temperatures (can be liquid-liquid, liquid-steam) flow in reverse or parallel flow in the channels formed by adjacent plates, and heat is transferred through the plates to achieve heat exchange. Because the plate heat exchanger is made of several heat exchange plates pressed together, it needs to have good anti-leakage characteristics.

[0003] First of all, the plate heat exchanger is accompanied by the flow of liquid during the heat exchange process. Leakage of liquid during the flow will cause the liquid to flow out. The party performing liquid heat exchange is the heat source, and its temperature is often higher. The leakage of liquid will pose certain safety hazards.

[0004] Secondly, due to the loss of medium caused by leakage, the company needs to continuously replenish new medium to maintain normal production. Moreover, leakage will cause the mixing of medium on the cold and hot sides, seriously affecting the heat exchange efficiency, and then affecting the normal progress of the entire process and equipment efficiency, causing energy waste and reduced production efficiency, which will significantly increase operating costs.

[0005] In summary, the structural characteristics of the plate heat exchanger made of stacked and pressed materials have high requirements on the sealing of the liquid, so it is hoped to propose a new structure to solve the above technical problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a heat exchanger that is leak-proof and solves the problems raised in the above-mentioned background technology.

[0007] The utility model is realized through the following technical scheme: a liquid leakage-proof heat exchanger, comprising: a heat exchanger main frame, a heat exchange plate, a sealing gasket and a locking piece, wherein a left plate is arranged at the left end of the heat exchanger main frame, an upper frame rod is arranged above the right side surface of the left plate, a lower frame rod is arranged below the right side surface of the left plate, a plurality of heat exchange plates are arranged between the upper frame rod and the lower frame rod, a sealing gasket is arranged between two adjacent heat exchange plates, a locking piece is arranged on the right side of the rightmost sealing gasket, a locking plate is arranged at the right end of the locking piece, four sets of sealing rings are arranged on the left side surface of the locking plate and the right side surface of the left plate, and a heat exchanger sub-frame is arranged on the right side of the locking piece.

[0008] As a preferred embodiment, the upper rack rod is an I-shaped structure, guide grooves are provided on both left and right sides of the middle position of the upper rack rod, a protrusion is provided on the upper end of the lower rack rod, and a broken groove is provided on the rear section of the lower surface of the upper rack rod.

[0009] As a preferred embodiment, a slot is formed through the center of the upper end of the rear side surface of the heat exchanger plate, and guide rails are provided on the left and right sides of the upper end of the slot. A groove is formed through the lower end of the rear side surface of the heat exchanger plate, and the guide rails and the guide grooves are movably engaged with each other, and the grooves and the protrusions are engaged with each other. Several heat exchange plates are embedded in the broken grooves, and the guide rails are slid along the guide grooves after the grooves and the protrusions are engaged. This allows all heat exchange plates to be accurately positioned without deviation, thereby preventing leakage.

[0010] As a preferred embodiment, through holes are formed at the four corners of the rear side of the heat exchanger plate, and engaging grooves are provided on the outside of the through holes and the front and rear sides of the heat exchanger plate. Engaging rubber pads are provided at the front and rear ends of the sealing gasket, and the embedding rubber pads are embedded in the embedding grooves. A sealing gasket is installed between two adjacent heat exchanger plates so that the sealing rubber gasket is embedded in the embedding groove, thereby improving the sealing performance and preventing leakage.

[0011] As a preferred embodiment, through holes are also formed at the four corners of the right side of the left plate and the locking plate. Four groups of left liquid guide tubes are provided on the left side of the left plate. A connecting flange is provided on the left side of the left liquid guide tube. A right liquid guide tube is provided on the right side of the locking plate. Users can import and export cold and hot liquids through the left liquid guide tube and the right liquid guide tube. The cold and hot liquids flow between the heat exchange plates to achieve heat exchange.

[0012] As a preferred embodiment, slide grooves are provided on both ends of the lower side surface of the upper end of the upper rack rod, a connecting groove is provided on the rear end of the upper surface of the upper rack rod, and slide rails are provided on both ends of the upper surface of the locking plate. The slide rails and the slide grooves are movably engaged with each other, and the locking piece is connected to the main frame of the heat exchanger using screws.

[0013] As a preferred embodiment, a connecting plate is provided at the upper end of the left side surface of the heat exchanger sub-frame, a connecting hole is opened on the right side surface of the lower frame rod, and a connecting column is provided at the lower end of the left side surface of the heat exchanger sub-frame, the connecting column and the connecting hole are interlocked, and the connecting plate and the connecting groove are interlocked.

[0014] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: by adding an upper rack rod, a sealing ring, a heat exchange plate and a sealing gasket, several groups of heat exchange plates are sequentially engaged with the grooves and protrusions at the lower ends from the broken groove position of the upper rack rod, the guide rail is embedded in the guide groove and slid to the left end, the sealing gasket is between two adjacent groups of heat exchange plates, and can be sealed by the engagement of the engaging rubber gasket and the engaging groove, the sealing rings at both ends can improve the sealing of the two ends, thereby achieving the effect of preventing liquid leakage, and by adding a left liquid guide pipe, a connecting flange and a right liquid guide pipe, it is possible to facilitate the introduction of liquid into the heat exchanger, and by adding a heat exchanger main frame, a locking member and a heat exchanger sub-frame, it is possible to facilitate the disassembly and assembly of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 The utility model is a schematic diagram of the overall structure of a liquid leakage-proof heat exchanger.

[0017] Figure 2 The utility model is a schematic diagram of the overall structure of a heat exchanger main frame in a liquid leakage-proof heat exchanger.

[0018] Figure 3 The utility model is a partial overall structural schematic diagram of a heat exchange plate in a liquid leakage-proof heat exchanger.

[0019] Figure 4 The utility model is a cross-sectional schematic diagram of a heat exchange plate in a liquid leakage-proof heat exchanger.

[0020] Figure 5 The utility model is a partial overall structural schematic diagram of a sealing gasket in a liquid leakage-proof heat exchanger.

[0021] Figure 6 The utility model is a cross-sectional schematic diagram of a sealing gasket in a liquid leakage-proof heat exchanger.

[0022] Figure 7 The utility model is a schematic diagram of the overall structure of a locking member in a liquid leakage-proof heat exchanger.

[0023] Figure 8 The utility model is a schematic diagram of the overall structure of a heat exchanger sub-frame in a liquid leakage-proof heat exchanger.

[0024] In the figure, 100-heat exchanger main frame, 110-left plate, 120-upper frame rod, 130-connecting groove, 140-breaking groove, 150-guide groove, 160-sliding groove, 170-sealing ring, 180-connecting flange, 190-connecting hole;

[0025] 200-heat exchange fin, 210-guide rail, 220-fitting groove;

[0026] 300-Sealing gasket;

[0027] 400-locking piece, 410-locking plate, 420-slide rail, 430-right liquid guide tube;

[0028] 500-heat exchanger sub-frame, 510-connecting plate, 520-connecting column. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figures 1 to 8 The utility model provides a technical solution: a liquid-leakage-proof heat exchanger, comprising: a heat exchanger main frame 100, a heat exchange plate 200, a sealing gasket 300 and a locking member 400, and a left plate 110 is provided at the left end of the heat exchanger main frame 100;

[0031] An upper rack rod 120 is provided above the right side of the left plate 110, and a lower rack rod is provided below the right side of the left plate 110. A plurality of heat exchange fins 200 are provided between the upper rack rod 120 and the lower rack rod, and a sealing gasket 300 is provided between two adjacent heat exchange fins 200.

[0032] A locking member 400 is provided on the right side of the rightmost sealing gasket 300, a locking plate 410 is provided at the right end of the locking member 400, four sets of sealing rings 170 are provided on the left side of the locking plate 410 and the right side of the left plate 110, and a heat exchanger sub-frame 500 is provided on the right side of the locking member 400.

[0033] The upper rack rod 120 is an I-shaped structure, with guide grooves 150 on both sides of the middle position of the upper rack rod 120, a protrusion on the upper end of the lower rack rod, and a broken groove 140 on the rear section of the lower surface of the upper rack rod 120.

[0034] A slot is formed through the center of the upper end of the rear side surface of the heat exchanger 200, and guide rails 210 are provided on both sides of the upper end of the slot. A groove is formed through the lower end of the rear side surface of the heat exchanger 200, and the guide rail 210 and the guide groove 150 are movably engaged with each other, and the groove and the protrusion are engaged with each other. Several heat exchanger fins 200 are inserted into the broken groove 140, and the guide rail 210 slides along the guide groove 150 after the groove and the protrusion are engaged. This can ensure that all heat exchanger fins 200 are accurately positioned without deviation, thereby preventing leakage.

[0035] Through holes are formed at the four corners of the rear side of the heat exchanger plate 200, and fitting grooves 220 are provided on the outside of the through holes and on the front and rear sides of the heat exchanger plate 200. Fitting rubber pads are provided at the front and rear ends of the sealing gasket 300, and the fitting rubber pads and the fitting grooves 220 are fitted with each other. A sealing gasket 300 is installed between two adjacent heat exchanger plates 200 so that the sealing rubber gasket is embedded in the fitting groove 220, thereby improving the sealing performance and preventing leakage.

[0036] See also Figure 1-Figure 6 As the first embodiment of the utility model: In order to solve the problem that leakage is prone to occur due to the particularity of the structure of the plate heat exchanger, which leads to safety hazards and increases, first, several heat exchanger plates 200 are embedded in the broken groove 140, and after the groove at the lower end of the right side of the heat exchanger plate 200 is engaged with the protrusion above the lower frame rod, the guide rail 210 slides to the left along the guide groove 150, so that all heat exchanger plates 200 can be accurately positioned and will not be offset. Secondly, a sealing gasket 300 is installed between two adjacent heat exchanger plates 200, so that the sealing rubber pads on the left and right sides of the sealing gasket 300 are embedded in the fitting groove 220, and four sets of sealing rings 170 are provided on the left side of the locking plate 410 and the right side of the left plate 110, which can improve the sealing performance of the connection positions at both ends, thereby improving the sealing performance and preventing leakage.

[0037] Through holes are also formed at the four corners of the right side of the left plate 110 and the locking plate 410. Four groups of left liquid guide tubes are provided on the left side of the left plate 110. A connecting flange 180 is provided on the left side of the left liquid guide tube. A right liquid guide tube 430 is provided on the right side of the locking plate 410. Users can import and export hot and cold liquids through the left liquid guide tube and the right liquid guide tube 430. The hot and cold liquids flow between the heat exchange plates 200 to achieve heat exchange.

[0038] The upper end of the upper rack rod 120 has a slide groove 160 at both ends of the lower side surface, and the upper rear end of the upper rack rod 120 has a connecting groove 130;

[0039] Slide rails 420 are provided at both left and right ends of the upper surface of the locking plate 410 . The slide rails 420 and the slide grooves 160 are movably engaged with each other. The locking member 400 and the heat exchanger main frame 100 are connected by screws.

[0040] A connecting plate 510 is provided at the upper end of the left side of the heat exchanger sub-frame 500, a connecting hole 190 is opened on the right side of the lower frame rod, and a connecting column 520 is provided at the lower end of the left side of the heat exchanger sub-frame 500. The connecting column 520 and the connecting hole 190 are interlocked, and the connecting plate 510 and the connecting groove 130 are interlocked.

[0041] See also Figure 1-Figure 2 and Figure 7-Figure 8 , as the second embodiment of the utility model: based on the above embodiment, the heat exchanger 200 and the sealing gasket 300 are consumables. After using them for a period of time, the heat exchanger 200 needs to be cleaned and the damaged heat exchanger 200 and the sealing gasket 300 need to be removed and replaced. First, after the heat exchanger 200 and the sealing gasket 300 are installed, the user embeds the slide rail 420 on the upper surface of the locking plate 410 at the left end of the locking piece 400 into the slide groove 160, slides the locking piece 400 to the left, and uses a screw to complete the connection and fixation between the locking piece 400 and the heat exchanger main frame 100, then embeds the connecting plate 510 at the upper end of the left side surface of the heat exchanger sub-frame 500 into the connecting groove 130, and embeds the connecting column 520 into the connecting hole 190, and fixes them with bolts, so that the heat exchanger can be disassembled and assembled for easy inspection and replacement.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat exchanger that prevents liquid leakage, include: A heat exchanger main frame (100), a heat exchange plate (200), a sealing gasket (300) and a locking member (400), characterized in that a left plate (110) is provided at the left end of the heat exchanger main frame (100); An upper rack rod (120) is provided above the right side surface of the left plate (110), a lower rack rod is provided below the right side surface of the left plate (110), a plurality of heat exchange fins (200) are provided between the upper rack rod (120) and the lower rack rod, and a sealing gasket (300) is provided between two adjacent heat exchange fins (200); A locking piece (400) is provided on the right side of the rightmost sealing gasket (300), a locking plate (410) is provided on the right end of the locking piece (400), four sets of sealing rings (170) are provided on the left side of the locking plate (410) and the right side of the left plate (110), and a heat exchanger sub-frame (500) is provided on the right side of the locking piece (400).

2. A liquid-leakage-proof heat exchanger as claimed in claim 1, Features: The upper rack rod (120) is an I-shaped structure, and guide grooves (150) are provided on both left and right sides of the middle position of the upper rack rod (120). A protrusion is provided on the upper end of the lower rack rod, and a broken groove (140) is provided on the rear section of the lower surface of the upper rack rod (120).

3. A liquid-leakage-proof heat exchanger as claimed in claim 2, Features: A slot is formed through the center of the upper end of the rear side surface of the heat exchange plate (200), and guide rails (210) are provided on both left and right sides of the upper end of the slot. A groove is formed through the lower end of the rear side surface of the heat exchange plate (200), and the guide rail (210) and the guide groove (150) are movably engaged with each other, and the groove and the protrusion are engaged with each other.

4. A liquid-leakage-proof heat exchanger as claimed in claim 3, Features: Through holes are formed at the four corners of the rear side of the heat exchange plate (200), and the outer side of the through holes and the front and rear sides of the heat exchange plate (200) are provided with engaging grooves (220). The front and rear ends of the sealing gasket (300) are provided with engaging rubber pads, and the engaging rubber pads are engaged with the engaging grooves (220).

5. A liquid-leakage-proof heat exchanger as claimed in claim 4, Features: Through holes are also formed at the four corners of the right side of the left plate (110) and the locking plate (410). Four groups of left liquid guide tubes are provided on the left side of the left plate (110). A connecting flange (180) is provided on the left side of the left liquid guide tube. A right liquid guide tube (430) is provided on the right side of the locking plate (410).

6. A liquid-leakage-proof heat exchanger as claimed in claim 1, Features: The left and right ends of the lower side surface of the upper end of the upper rack rod (120) are provided with sliding grooves (160), and the rear end of the upper surface of the upper rack rod (120) is provided with a connecting groove (130); Slide rails (420) are provided at both left and right ends of the upper surface of the locking plate (410); the slide rails (420) and the slide grooves (160) are movably engaged with each other; and the locking member (400) and the heat exchanger main frame (100) are connected by screws.

7. A liquid-leakage-proof heat exchanger as claimed in claim 6, Features: A connecting plate (510) is provided at the upper end of the left side surface of the heat exchanger sub-frame (500), a connecting hole (190) is opened on the right side surface of the lower frame rod, and a connecting column (520) is provided at the lower end of the left side surface of the heat exchanger sub-frame (500), the connecting column (520) and the connecting hole (190) are interlocked, and the connecting plate (510) and the connecting groove (130) are interlocked.

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