CN116183276A - Round block hole type graphite heat exchanger heat exchange effect detection device - Google Patents

Abstract

The invention discloses a heat exchange effect detection device of a round block hole type graphite heat exchanger, and relates to the technical field of heat exchange effect detection of graphite heat exchangers, comprising a heat exchanger body, wherein the outer side of the heat exchanger body is connected with an external installation component, and the external installation component is connected with a detection component; the detection assembly comprises two liquid storage barrels, the two ends of each liquid storage barrel are fixedly connected with a first water diversion pipe and a second water diversion pipe respectively, the two groups of first water diversion pipes are connected with the input ends of a heat flow pipeline and a cold flow pipeline of the heat exchanger respectively, and the two groups of second water diversion pipes are connected with the output ends of the heat flow pipeline and the cold flow pipeline of the heat exchanger respectively.

Description

A heat transfer effect detection device for a round block hole graphite heat exchanger

technical field

The invention relates to the technical field of heat exchange effect detection of graphite heat exchangers, in particular to a heat exchange effect detection device for round block hole graphite heat exchangers.

Background technique

Petroleum and chemical industries use a large number of heat exchange equipment in the production process. The heat exchange medium contains strong acid, strong alkali and related salts, which will cause serious corrosion to the heat exchange equipment, and even cause the leakage of toxic substances and personal injury. A series of problems such as casualties and environmental pollution. Therefore, heat exchange equipment is required not only to have good heat exchange performance, but also to have sufficient corrosion resistance. Graphite heat exchangers have the characteristics of good heat exchange effect, strong corrosion resistance, compact structure, small footprint and easy installation and maintenance, and are widely used in the domestic market.

The round hole graphite heat exchanger is one of the graphite heat exchangers. The round hole graphite heat exchanger is composed of a number of impregnated graphite heat exchange blocks with circular cross-sections. The heat exchange blocks are sealed with polytetrafluoroethylene sealing rings, and the heat exchange blocks are placed in the steel cylinder shell. The graphite heat exchange block has many round hole flow passages parallel to the axis and perpendicular to the radial direction of the axis, wherein the radial flow passages are located in the middle of the intervals between the axial flow passages. One medium flows along the axial flow channel, while the other medium flows along the radial flow channel with internal and external deflection.

The inner head and heat exchange block of the round hole graphite heat exchanger are made of phenolic resin impregnated graphite with high thermal conductivity, which can remove strong oxidizing media, such as nitric acid, concentrated sulfuric acid, chromic acid, hypochlorous acid, strong alkali and strong oxidation Suitable for heat exchange of various inorganic acids, organic acids, salt solutions, weak bases, solvents, etc. Excellent corrosion resistance.

The round hole graphite heat exchanger is a kind of graphite heat exchanger with relatively high performance and superior performance. The cylinder body of the round block hole graphite heat exchanger can be installed with ear-type supports for hanging installation; at the same time, the carbon steel shell can be designed as a multi-section short cylinder structure, which provides great convenience for users to install and maintain equipment. It has the characteristics of high overall structural strength of the equipment, no scaling on the heat transfer surface, strong temperature resistance, pressure resistance and corrosion resistance, good impact resistance, and high heat transfer efficiency.

During the use of the round hole graphite heat exchanger, with the passage of time, the heat transfer effect needs to be tested regularly. At present, it is inconvenient to detect the heat transfer effect of the round hole graphite heat exchanger, and it often depends on the operation It is determined by the daily experience of personnel, has certain defects and needs to be improved.

Contents of the invention

The present invention provides a heat exchange effect detection device for a round block hole type graphite heat exchanger, which solves the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A heat transfer effect detection device for a round hole type graphite heat exchanger, comprising a heat exchanger body, the outer side of the heat exchanger body is connected to an external installation component, and the external installation component is connected to a detection component;

The detection assembly includes two liquid storage barrels, the two ends of the liquid storage barrels are respectively fixedly connected with a first water diversion pipe and a second water diversion pipe, and the two sets of first water diversion pipes are respectively connected with the heat flow pipe and the cold flow pipe of the heat exchanger. The input end of the pipeline, and the two sets of second water diversion pipes are respectively connected to the output ends of the hot flow pipeline and the cold flow pipeline of the heat exchanger;

One side of the liquid storage barrel is provided with a reaction box, and two input pipes are fixedly connected between the reaction box and the two liquid storage barrels. The middle part of the reaction box is fixedly connected with an inner sealing seat, and the two inner sealing seats A hot flow cavity and a cold flow cavity are respectively arranged on the side, and the hot flow cavity and the cold flow cavity are respectively connected with two input pipes, and a temperature difference sensor is fixed inside the inner sealing seat, and the cold pole and the hot pole of the temperature difference sensor are fixedly connected There is a heat conduction plate, and the two heat conduction plates are respectively placed in the hot flow cavity and the cold flow cavity. One side of the reaction box is fixed with an observation tube, and a plurality of lamp beads are arranged in the observation tube. The plurality of lamp beads are electrically connected to the temperature difference sensor. connect.

As a preferred technical solution of the present invention, the external installation assembly includes two end plates, a bearing plate is fixed between the two end plates, the liquid storage tank and the reaction box are fixed on the bearing plate, and the two end plates are fixed on the bearing plate. The top and bottom between the two end plates are also fixed with fixed rods. Both sides of the heat exchanger body are equipped with fixed side plates. The fixed rods run through the two fixed side plates and are fixedly connected with them. The fixed side plates are far away from the One end of the fixing rod penetrates through and is threadedly connected with a compression screw, and the end of the compression screw close to the heat exchanger body is rotatably connected with a compression block.

As a preferred technical solution of the present invention, the end of the compression screw away from the compression block is fixedly connected with a hand wheel.

As a preferred technical solution of the present invention, flanges are fixedly connected to both ends of the heat exchanger body, and connecting sleeves are provided at the joints between the flanges and the first water diversion pipe and the second water diversion pipe.

As a preferred technical solution of the present invention, a discharge box is fixedly arranged on the bearing plate, an output pipe is fixedly connected between the discharge box and the reaction box, and a confluence cavity is opened in the upper part of the inner sealing seat, and the two sides of the confluence cavity Both sides are provided with return passages, and the two return passages communicate with the hot flow chamber and the cold flow chamber respectively, and both sides of the inner sealing seat are fixed with one-way guide components connected with the return passage.

As a preferred technical solution of the present invention, the one-way diversion assembly includes a diversion jacket fixedly arranged outside the inner sealing seat, a middle diversion chamber is opened in the middle of the diversion jacket, and the middle diversion chamber is close to the liquid return channel One end of the diversion chamber is provided with a diversion output chamber, the other end of the middle diversion chamber is provided with a diversion input chamber, the middle diversion chamber is provided with a movable ball, and the inner wall of the diversion output chamber is fixed with a plurality of ribs.

As a preferred technical solution of the present invention, the ribs are fixedly connected with a fixing frame, the fixing frame is fixedly connected with a guide rod, and the guide rod penetrates through the movable ball and is slidably connected with it.

The present invention has the following advantages: the present invention can guide the flow according to the cold flow and hot flow in the heat exchanger and detect the heat exchange efficiency by setting the detection component, the detection result is obvious, and can be used repeatedly for a long time; by setting the external installation component, it can The rapid installation and disassembly on the graphite heat exchanger is realized, which is convenient for rapid detection of different graphite heat exchangers, is practical and convenient, and has good use effect.

Description of drawings

Fig. 1 is a schematic diagram of the front three-dimensional structure of the heat exchange effect detection device of the round block hole graphite heat exchanger.

Fig. 2 is a schematic diagram of the rear three-dimensional structure of the heat exchange effect detection device of the round block hole graphite heat exchanger.

Fig. 3 is a schematic diagram of the internal structure of the reaction box in the heat exchange effect detection device of the round block hole graphite heat exchanger.

Fig. 4 is a schematic structural view of the one-way guide assembly in the heat exchange effect detection device of the round block hole graphite heat exchanger.

In the figure: 1. Heat exchanger body; 2. Flange; 3. End plate; 4. Loading plate; 5. Fixed rod; 6. Fixed side plate; 7. Compression screw; 8. Compression block; 9 , hand wheel; 10, liquid storage barrel; 11, first water diversion pipe; 12, connecting sleeve; 13, second water diversion pipe; 14, reaction box; 15, input pipe; 16, observation pipe; 17, output pipe; 18 , discharge box; 19, inner sealing seat; 20, thermoelectric generator; 21, heat conduction plate; 22, confluence cavity; 23, return liquid channel; 24, one-way guide assembly; 25, guide jacket; 27, diversion input chamber; 28, diversion output chamber; 29, rib plate; 30, fixed frame; 31, movable ball; 32, guide rod.

Implementation

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

It should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" are Based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood To limit the present invention.

Please refer to Figures 1-4, a heat transfer effect detection device for a round hole graphite heat exchanger, including a heat exchanger body 1, the outer side of the heat exchanger body 1 is connected to an external installation component, and the external installation component is connected to a detection device. components;

The detection assembly includes two liquid storage barrels 10, the two ends of the liquid storage barrels 10 are respectively fixedly connected with a first water diversion pipe 11 and a second water diversion pipe 13, and two sets of first water diversion pipes 11 are respectively connected to the heat exchanger. The input ends of the hot flow pipe and the cold flow pipe, and two sets of second water diversion pipes 13 are respectively connected to the output ends of the heat flow pipe and the cold flow pipe of the heat exchanger;

One side of the liquid storage barrel 10 is provided with a reaction box 14, and two input pipes 15 are fixedly connected between the reaction box 14 and the two liquid storage barrels 10, and the middle part of the reaction box 14 is fixedly connected with an inner sealing seat 19. Both sides of the inner sealing seat 19 are provided with a hot flow cavity and a cold flow cavity respectively, and the hot flow cavity and the cold flow cavity are respectively connected with the two input pipes 15. The inside of the inner sealing seat 19 is fixed with a temperature difference sensor, and the temperature difference Both the cold pole and the hot pole of the sensor are fixedly connected with a heat conduction plate 21, and the two heat conduction plates 21 are respectively placed in the hot flow cavity and the cold flow cavity, and an observation tube 16 is fixed on one side of the reaction box 14, and the observation tube 16 A plurality of lamp beads are provided, and the plurality of lamp beads are electrically connected to the temperature difference sensor.

Wherein, the magnitudes of currents required for lighting up multiple lamp beads are not the same.

The external installation assembly includes two end plates 3, a bearing plate 4 is fixed between the two end plates 3, the liquid storage barrel 10 and the reaction box 14 are fixedly arranged on the bearing plate 4, and the two end plates The top and bottom ends between 3 are also fixed with fixed rods 5, and both sides of the heat exchanger body 1 are provided with fixed side plates 6, and the fixed rods 5 penetrate through the two fixed side plates 6 and are fixedly connected with them. The end of the plate 6 away from the fixing rod 5 penetrates and is threadedly connected with a compression screw 7 , and the end of the compression screw 7 close to the heat exchanger body 1 is rotatably connected with a compression block 8 .

The end of the compression screw 7 away from the compression block 8 is fixedly connected with a hand wheel 9 .

Both ends of the heat exchanger body 1 are fixedly connected with flanges 2 , and connecting sleeves 12 are provided at the joints of the flange 2 and the first water pipe 11 and the second water pipe 13 .

Also fixedly be provided with discharge box 18 on described bearing plate 4, output pipe 17 is fixedly connected between discharge box 18 and reaction box 14, and the upper part in inner sealing seat 19 is provided with confluence cavity 22, and the both sides of confluence cavity 22 are A return flow channel is provided, and the two return flow channels communicate with the hot flow cavity and the cold flow cavity respectively. Both sides of the inner sealing seat 19 are fixed with a one-way guide assembly 24 connected with the return flow channel.

Described one-way guide assembly 24 comprises guide cover 25 that is fixedly arranged on the outside of inner sealing seat 19, and the middle part in guide cover 25 is provided with middle section guide chamber 26, and middle section guide chamber 26 is provided near one end of liquid return passage 23. There is a diversion output chamber 28, the other end of the middle diversion chamber 26 is provided with a diversion input chamber 27, the middle diversion chamber 26 is provided with a movable ball 31, and the inner wall of the diversion output chamber 28 is fixedly provided with a plurality of ribs Plate 29.

The rib plate 29 is fixedly connected with a fixing frame 30, and the fixing frame 30 is fixedly connected with a guide rod 32, and the guide rod 32 runs through the movable ball 31 and is slidably connected with it.

During the implementation of the present invention, the hot fluid and the cold fluid enter the two liquid storage tanks 10 respectively through the first water diversion pipe 11 and the second water diversion pipe 13, and then enter the hot flow chamber and the cold fluid chamber respectively through the two input pipes 15. , the heat conduction of the heat flow and the cold flow through the two heat conduction plates 21 causes a temperature difference between the two poles of the thermoelectric generator 20, and the thermoelectric generator 20 generates electricity. On the lamp beads inside, when the output current of the thermoelectric generator 20 becomes larger, the number of lit lamp beads also increases, and if the output current of the thermoelectric generator 20 becomes smaller, the number of lit lamp beads also decreases. The heat transfer effect can be observed according to the number of lighted lamp beads.

Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still The technical solutions recorded in the foregoing embodiments may be modified, or some technical features thereof may be equivalently replaced. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (7)

1. The heat exchange effect detection device of the round block hole type graphite heat exchanger comprises a heat exchanger body (1) and is characterized in that the outer side of the heat exchanger body (1) is connected with an external installation component, and the external installation component is connected with a detection component;

the detection assembly comprises two liquid storage barrels (10), two ends of each liquid storage barrel (10) are fixedly connected with a first water diversion pipe (11) and a second water diversion pipe (13) respectively, the two groups of first water diversion pipes (11) are connected with the input ends of a hot flow pipeline and a cold flow pipeline of the heat exchanger respectively, and the two groups of second water diversion pipes (13) are connected with the output ends of the hot flow pipeline and the cold flow pipeline of the heat exchanger respectively;

one side of liquid storage barrel (10) is equipped with reaction box (14), fixedly connected with two input tube (15) between reaction box (14) and two liquid storage barrel (10), middle part fixedly connected with in reaction box (14) inner seal seat (19), the both sides of inner seal seat (19) are equipped with heat flow chamber and cold flow chamber respectively, heat flow chamber and cold flow chamber are linked together with two input tube (15) respectively, the inside of inner seal seat (19) is fixed and is equipped with temperature difference sensor, the equal fixedly connected with heat conduction board (21) of cold pole and heat of temperature difference sensor, and heat flow chamber and cold flow intracavity are arranged respectively in to two heat conduction boards (21), one side of reaction box (14) is fixed and is equipped with observation tube (16), is equipped with a plurality of lamp pearls in the observation tube (16), a plurality of lamp pearls and temperature difference sensor electric connection.

2. The heat exchange effect detection device of the round block hole type graphite heat exchanger according to claim 1, wherein the external installation component comprises two end plates (3), a bearing plate (4) is fixedly arranged between the two end plates (3), a liquid storage barrel (10) and a reaction box (14) are fixedly arranged on the bearing plate (4), fixing rods (5) are fixedly arranged at the top end and the bottom end between the two end plates (3), fixing side plates (6) are arranged at two sides of the heat exchanger body (1), the fixing rods (5) penetrate through the two fixing side plates (6) and are fixedly connected with the fixing side plates, one ends, far away from the fixing rods (5), of the fixing side plates (6) penetrate through and are in threaded connection with compression screws (7), and one ends, close to the heat exchanger body (1), of the compression screws (7) are rotationally connected with compression blocks (8).

3. The heat exchange effect detection device of the round block hole type graphite heat exchanger according to claim 2, wherein a hand wheel (9) is fixedly connected to one end, far away from the compression block (8), of the compression screw (7).

4. The heat exchange effect detection device of the round block hole type graphite heat exchanger according to claim 1, wherein flanges (2) are fixedly connected to two ends of the heat exchanger body (1), and connecting sleeves (12) are arranged at the connecting positions of the flanges (2) and the first water guide pipe (11) and the second water guide pipe (13).

5. The heat exchange effect detection device of the round block hole type graphite heat exchanger according to claim 1, wherein the bearing plate (4) is fixedly provided with a discharge box (18), an output pipe (17) is fixedly connected between the discharge box (18) and the reaction box (14), a confluence cavity (22) is formed in the upper portion of the inner sealing seat (19), two sides of the confluence cavity (22) are respectively provided with a backflow channel, the two backflow channels are respectively communicated with the hot flow cavity and the cold flow cavity, and two sides of the inner sealing seat (19) are respectively fixedly provided with a unidirectional flow guide assembly (24) connected with the backflow channels.

6. The heat exchange effect detection device of the round block hole type graphite heat exchanger according to claim 5, wherein the unidirectional flow guide assembly (24) comprises a flow guide outer sleeve (25) fixedly arranged on the outer side of the inner sealing seat (19), a middle section flow guide chamber (26) is arranged in the middle part of the flow guide outer sleeve (25), a flow guide output chamber (28) is arranged at one end, close to the liquid return channel (23), of the middle section flow guide chamber (26), a flow guide input chamber (27) is arranged at the other end of the middle section flow guide chamber (26), a movable ball (31) is arranged in the middle section flow guide chamber (26), and a plurality of rib plates (29) are fixedly arranged on the inner wall of the flow guide output chamber (28).

7. The heat exchange effect detection device of the round block hole type graphite heat exchanger according to claim 6, wherein the rib plate (29) is fixedly connected with a fixing frame (30), the fixing frame (30) is fixedly connected with a guide rod (32), and the guide rod (32) penetrates through the movable ball (31) and is in sliding connection with the movable ball.

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