Heat exchanger using chilled water for cooling

Abstract

The utility model relates to the technical field of heat exchangers, and particularly discloses a heat exchanger for cooling by using chilled water, which comprises a plate heat exchanger, a plurality of refrigerant inlet flange pipes and heating medium outlet flange pipes are fixedly connected to the plate heat exchanger in a communicating mode. A plurality of avoiding grooves and fixing holes are formed in the refrigerant inlet flange pipe and the heating medium outlet flange pipe; a first interval clamping jaw penetrates through an avoiding groove and then rotates on a refrigerant inlet flange pipe and a heating medium outlet flange pipe, so that fixing holes in the refrigerant inlet flange pipe and the heating medium outlet flange pipe are aligned with fixing holes in an anti-loosening flange plate, and then a first fastening piece is inserted to achieve further fixing. Axial limiting connection between the first interval clamping jaw and the refrigerant inlet flange pipe and between the first interval clamping jaw and the heating medium outlet flange pipe is achieved, then rotation of the first interval clamping jaw is stopped through the first fastening pieces, rotation of the first interval clamping jaw can be stopped only by reserving two first fastening pieces, and connection and sealing are more reliable in the vibration environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field, concretely is a kind of heat exchanger using refrigerated water cooling. BACKGROUND

[0002] Plate heat exchanger is a kind of high-efficiency heat exchange equipment, it passes a series of thin metal plates to transfer heat;These metal plates are arranged into a compact structure, and narrow channel is formed between two adjacent plates, and two kinds of fluids flow in these channels respectively, and heat exchange is carried out through plate wall;This design makes plate heat exchanger have higher heat transfer efficiency and smaller volume.

[0003] The Chinese invention patent with disclosure number CN116294380A disclosed a kind of refrigerated water circulation system of seasonal energy saving on June 23, 2023, when in summer, through the second butterfly valve, second medium-temperature refrigerated water is used plate heat exchanger is closed, through water chiller and first medium-temperature refrigerated water is used plate heat exchanger to carry out heat exchange, ensure refrigerated water supply in summer, when in winter, through the first butterfly valve, first medium-temperature refrigerated water is used plate heat exchanger is closed, cooling tower is used natural cooling source cooling water and is exported to second medium-temperature refrigerated water is used plate heat exchanger to carry out heat exchange, flexible switching satisfies efficient water supply demand, reduce winter energy consumption, save energy.

[0004] But the above-mentioned published scheme has the following shortcomings: the prior art provides a method, but in actual installation and use, the traditional flange plate installation is not efficient and anti-loose, so that in long-term use and vibration environment, bolt and nut are prone to loose, and the requirements for bolt and nut are high. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the technical problem that the prior art provides a method, but in actual installation and use, the traditional flange plate installation is not efficient and anti-loose, so that in long-term use and vibration environment, bolt and nut are prone to loose, and the requirements for bolt and nut are high, and provides a kind of heat exchanger using refrigerated water cooling.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions to achieve the above-mentioned purpose.

[0007] The utility model discloses a kind of heat exchanger using refrigerated water cooling, including plate heat exchanger;The plate heat exchanger is connected with a plurality of refrigerant inlet flange pipe and heat medium outlet flange pipe;A plurality of avoiding grooves and fixed holes are formed on the refrigerant inlet flange pipe and heat medium outlet flange pipe;First fastener is inserted in the fixed hole;Anti-loose flange plate is sleeved on the first fastener;First spacing dog is fixed on the anti-loose flange plate corresponding avoiding groove;Three-way pipe is connected with the anti-loose flange plate;First stop valve is sleeved on the three-way pipe.

[0008] Further, the three-way pipe is communicated and fixed with a refrigerated water pipe; a second stop valve is sleeved between the refrigerated water pipe and the three-way pipe.

[0009] Further, a plurality of second fasteners are inserted into the three-way pipe; second interval clamping jaws are sleeved on the second fasteners; and the second interval clamping jaws are symmetrically fixed on the refrigerant pipe.

[0010] The heat exchanger for cooling by using refrigerated water has the following beneficial effects:

[0011] 1. The first interval clamping jaw passes through the avoiding groove, then rotates on the refrigerant inlet flange pipe and the heat medium outlet flange pipe, so that the fixing holes on the refrigerant inlet flange pipe and the heat medium outlet flange pipe are aligned with the fixing holes on the anti-loose flange plate, then the first fastener is inserted to realize further fixation, axial limiting connection of the first interval clamping jaw and the refrigerant inlet flange pipe and the heat medium outlet flange pipe is realized, a certain sealing connection is realized by using the friction force of the anti-loose flange plate and the refrigerant inlet flange pipe and the heat medium outlet flange pipe, then the rotation of the first interval clamping jaw is blocked by using the first fastener, so that the rotation of the first interval clamping jaw can be blocked as long as two first fasteners are left, so that the connection sealing is more reliable in a vibration environment.

[0012] 2. The second interval clamping jaw can realize limiting the freedom of the axis, then the radial freedom of the refrigerant pipe is limited by the second fastener, and the rotation freedom of the two second interval clamping jaws is limited by the four second fasteners, so that when the four second fasteners are disconnected, the refrigerant pipe will not directly separate from the three-way pipe, so that the safety is higher in long-term use. BRIEF DESCRIPTION OF DRAWINGS

[0013] The specific embodiments of the utility model will be further described in combination with the drawings;

[0014] Fig. 1 It is the first axial measurement structure schematic view of the utility model;

[0015] Fig. 2 It is the second axial measurement structure schematic view of the utility model;

[0016] Fig. 3 It is the overhead structure schematic view of the utility model.

[0017] Explanations of reference numerals in the drawings: 1, plate heat exchanger; 2, refrigerant inlet flange pipe; 3, heat medium outlet flange pipe; 4, three-way pipe; 5, avoiding groove; 6, fixing hole; 7, anti-loosening flange plate; 8, first spacing clamping jaw; 9, first fastener; 10, second spacing clamping jaw; 11, first stop valve; 12, chilled water pipe; 13, second stop valve; 14, heat preservation sleeve; 15, viscous plate; 16, second fastener; 17, refrigerant pipe; 18, conventional flange plate. DETAILED DESCRIPTION

[0018] It should be understood that the specific embodiments described herein are merely exemplary and are not intended to limit the present application.

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly. The connection can be direct connection or indirect connection.

[0021] Please refer to Figs. 1-3As shown, a heat exchanger using chilled water cooling includes a plate heat exchanger 1; a plurality of refrigerant inlet flange pipes 2 and heat medium outlet flange pipes 3 are connected and fixed on the plate heat exchanger 1; a plurality of avoiding grooves 5 and fixing holes 6 are formed on the refrigerant inlet flange pipes 2 and the heat medium outlet flange pipes 3; the first fasteners 9 are inserted into the fixing holes 6; the anti-loose flange plates 7 are sleeved on the first fasteners 9; the first spacing clamps 8 are fixed on the anti-loose flange plates 7 corresponding to the avoiding grooves 5; the three-way pipes 4 are connected and fixed on the anti-loose flange plates 7; the first stop valves 11 are sleeved on the three-way pipes 4; the first spacing clamps 8 pass through the avoiding grooves 5, then rotate on the refrigerant inlet flange pipes 2 and the heat medium outlet flange pipes 3, so that the fixing holes 6 on the refrigerant inlet flange pipes 2 and the heat medium outlet flange pipes 3 are aligned with the fixing holes 6 on the anti-loose flange plates 7, then the first fasteners 9 are inserted to achieve further fixation, the axial limiting connection of the first spacing clamps 8 with the refrigerant inlet flange pipes 2 and the heat medium outlet flange pipes 3 is achieved, the friction force of the anti-loose flange plates 7 with the refrigerant inlet flange pipes 2 and the heat medium outlet flange pipes 3 is used to achieve a certain sealing connection, then the rotation of the first spacing clamps 8 is blocked by the first fasteners 9, so that as long as two first fasteners 9 are left, the rotation of the first spacing clamps 8 can be blocked, so that the connection and sealing are more reliable in a vibrating environment.

[0022] The chilled water pipes 12 are connected and fixed on the three-way pipes 4; the second stop valves 13 are sleeved between the chilled water pipes 12 and the three-way pipes 4, the on-off of the chilled water pipes 12 can be controlled through the second stop valves 13, and the temperature range of the entering water flow can be adjusted according to the heat exchange needs.

[0023] A plurality of second fasteners 16 are inserted into the three-way pipes 4; the second spacing clamps 10 are sleeved on the second fasteners 16; the second spacing clamps 10 are symmetrically fixed on the refrigerant pipes 17, the double fixation is achieved through the cooperation of the second fasteners 16 and the second spacing clamps 10, the freedom of the axis is limited through the second spacing clamps 10, then the radial freedom of the refrigerant pipes 17 is limited through the second fasteners 16, and the rotation freedom of the two second spacing clamps 10 is limited by the four second fasteners 16, so that when the four second fasteners 16 are disconnected, the refrigerant pipes 17 will not directly separate from the three-way pipes 4, and the safety in long-term use is higher.

[0024] The heat preservation sleeves 14 are sleeved on the chilled water pipes 12, the exchange of heat between the chilled water pipes 12 and the air is blocked through the heat preservation sleeves 14, and the low temperature in the chilled water pipes 12 is efficiently utilized.

[0025] The adhesive plates 15 are symmetrically inserted into the slots on the heat preservation sleeves 14, the two heat preservation sleeves 14 are fixedly connected through the adhesive plates 15, the gap between the two heat preservation sleeves 14 is increased, the heat transfer path is lengthened, the heat exchange speed is low, and the heat preservation is better.

[0026] By having a conventional flange 18 attached to the end of the refrigerant pipe 17, it is made convenient for the conventional flange to connect the pipes of the refrigerant and the heat medium.

[0027] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A heat exchanger that utilizes chilled water for cooling, characterized in that; The device includes a plate heat exchanger (1); multiple refrigerant inlet flanges (2) and heat medium outlet flanges (3) are connected and fixed to the plate heat exchanger (1); multiple clearance grooves (5) and fixing holes (6) are provided on the refrigerant inlet flanges (2) and heat medium outlet flanges (3); a first fastener (9) is inserted into the fixing hole (6); an anti-loosening flange plate (7) is sleeved on the first fastener (9); a first spacer claw (8) is fixed to the anti-loosening flange plate (7) corresponding to the clearance grooves (5); a tee pipe (4) is connected and fixed to the anti-loosening flange plate (7); a first shut-off valve (11) is sleeved on the tee pipe (4).

2. The heat exchanger using chilled water for cooling according to claim 1, characterized in that: A chilled water pipe (12) is connected and fixed to the tee pipe (4); a second shut-off valve (13) is connected between the chilled water pipe (12) and the tee pipe (4).

3. The heat exchanger using chilled water for cooling according to claim 2, characterized in that: A plurality of second fasteners (16) are inserted into the tee pipe (4); a second spacer claw (10) is sleeved on the second fastener (16); the second spacer claw (10) is symmetrically fixed to the refrigerant pipe (17).

4. The heat exchanger using chilled water for cooling according to claim 2, characterized in that: An insulation sleeve (14) is fitted onto the chilled water pipe (12).

5. The heat exchanger using chilled water for cooling according to claim 4, characterized in that: The insulation sleeve (14) has symmetrical slots on which adhesive plates (15) are inserted.

6. The heat exchanger using chilled water for cooling according to claim 3, characterized in that: The end of the refrigerant pipe (17) is fixed with a conventional flange (18).

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