Water-cooled nitrogen heat exchanger

Abstract

The utility model discloses a water-cooled nitrogen heat exchanger, which relates to the technical field of heat exchangers and comprises a heat exchanger body, a plurality of electromagnetic valves, a control panel and a temperature sensor. The heat exchanger body comprises a first nitrogen inlet, a second nitrogen inlet, a first nitrogen outlet and a plurality of second nitrogen outlets; the temperature sensor is fixed at the first nitrogen inlet; the electromagnetic valve is provided with an electromagnetic valve gas inlet and an electromagnetic valve gas outlet; the second nitrogen outlet is communicated with an electromagnetic valve gas inlet; a gas outlet of the electromagnetic valve is communicated with the second nitrogen inlet; the temperature sensor is electrically connected with the control panel; and the electromagnetic valve is electrically connected with the control panel. The water-cooled nitrogen heat exchanger solves the problem that a heat exchanger in the prior art is poor in nitrogen cooling effect, and the cooling effect of the heat exchanger on high-temperature nitrogen can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field especially relates to water -cooled nitrogen heat exchanger. BACKGROUND

[0002] Plate-fin heat exchanger is a common heat exchange equipment for transferring heat between different fluids, which is composed of a series of parallel arranged metal plates and fins, and many small channels are formed between the metal plates and fins, so that the fluids can fully exchange heat on the contact surface.

[0003] In the prior art, a water-gas cooler disclosed in Chinese patent application No. 201420842594.6 can cool gas using water.

[0004] Nitrogen is a kind of gas, when it is necessary to cool nitrogen using a heat exchanger, the existing water-gas cooler can be used, however, when the temperature of nitrogen is unstable, the cooling effect of the heat exchanger on nitrogen is poor.

[0005] The reason why nitrogen needs to be cooled when its temperature is high is that when nitrogen is compressed by a compressor, its temperature will rise due to the mechanical work in the compression process, and the high-temperature nitrogen may cause the aging of the conveying pipeline or other equipment materials to accelerate, at which time the heat exchanger needs to be used to cool the nitrogen.

[0006] The reason why the temperature of nitrogen is unstable is that the above-mentioned compressed nitrogen is based on the first law of thermodynamics, and in the process of compressing a large volume to a small volume, the outside does work on the gas during the compression process, and this part of energy remains in the gas in the form of heat, causing the temperature of the gas to rise, so the increased heat of nitrogen does not always form a stable temperature increase every time, therefore, the temperature of nitrogen is uncertain, and the heat exchange between water and nitrogen in the heat exchanger is to exchange heat for nitrogen at different temperatures, which may cause the temperature of the obtained nitrogen to fluctuate greatly, and further cause the poor cooling effect of nitrogen. CONTENT OF THE UTILITY MODEL

[0007] In view of the above technical problems, the water-cooled nitrogen heat exchanger provided by the utility model can improve the cooling effect of the heat exchanger on high-temperature nitrogen.

[0008] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0009] The water-cooled nitrogen heat exchanger provided by the utility model has the advantages that the cooling effect of the heat exchanger on high-temperature nitrogen is improved.

[0010] The water-cooled nitrogen heat exchanger provided by the utility model has the advantages that the cooling effect of the heat exchanger on high-temperature nitrogen is improved.

[0011] The water-cooled nitrogen heat exchanger provided by the utility model has the advantages that the cooling effect of the heat exchanger on high-temperature nitrogen is improved.

[0012] The water-cooled nitrogen heat exchanger provided by the utility model has the advantages that the cooling effect of the heat exchanger on high-temperature nitrogen is improved.

[0013] The water-cooled nitrogen heat exchanger provided by the utility model has the advantages that the cooling effect of the heat exchanger on high-temperature nitrogen is improved.

[0014] The water-cooled nitrogen heat exchanger provided by the utility model has the advantages that the cooling effect of the heat exchanger on high-temperature nitrogen is improved.

[0015] The water-cooled nitrogen heat exchanger provided by the utility model has the advantages that the cooling effect of the heat exchanger on high-temperature nitrogen is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not intentionally drawn to scale; the focus is on illustrating the gist of the invention.

[0017] Fig. 1 This is a schematic diagram of the overall structure of the water-cooled nitrogen heat exchanger provided in Embodiment 1 of this utility model.

[0018] Fig. 2 This is a schematic diagram of the circuit frame connection of the water-cooled nitrogen heat exchanger provided in Embodiment 1 of this utility model. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. It should also be noted that the terminology used in this utility model is for describing specific implementations only and is not intended to limit the exemplary implementations according to this application.

[0020] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without inventive effort are within the protection scope of the present utility model.

[0021] Example 1:

[0022] The water-cooled nitrogen heat exchanger provided in Embodiment 1 of this utility model, such as Figs. 1-2 As shown, the device includes a heat exchanger body 1, several solenoid valves 2, a control board 3, and a temperature sensor 4. The heat exchanger body 1 includes a first nitrogen inlet 11, a second nitrogen inlet 12, a first nitrogen outlet 13, and multiple second nitrogen outlets 14. The temperature sensor 4 is fixed to the first nitrogen inlet 11. The solenoid valves 2 have a solenoid valve gas inlet and a solenoid valve gas outlet. The second nitrogen outlets 14 are connected to the solenoid valve 2 gas inlet. The solenoid valve 2 gas outlet is connected to the second nitrogen inlet 12. The temperature sensor 4 is electrically connected to the control board 3. The solenoid valves 2 are electrically connected to the control board 3.

[0023] The water-cooled nitrogen heat exchanger provided by the embodiment 1 of the utility model in use needs to connect the cooling water inlet and the cooling water outlet with the heat exchanger body 1, the heat exchanger body 1 is prior art, for example, a water gas cooler disclosed in Chinese patent application No.201420842594.6 can realize cooling of gas by water, and the nitrogen gas with unstable temperature enters the heat exchanger body 1 from the first nitrogen gas inlet and exchanges heat with the cooling water passing through the heat exchanger body 1, and the cooled nitrogen gas flows out from the first nitrogen gas outlet 13 to the subsequent part for use, when the nitrogen gas enters the first nitrogen gas inlet 11, the temperature of the nitrogen gas is sensed by the temperature sensor 4, the temperature sensor 4 transmits the signal to the control panel 3, the control panel 3 controls the opening and closing of the electromagnetic valve 2 according to the signal sensed by the temperature sensor 4, when the signal transmitted by the temperature sensor 4 indicates that the temperature of the nitrogen gas at the first nitrogen gas outlet 13 is too high, the control panel 3 opens the corresponding number of electromagnetic valves 2 according to the temperature (the higher the temperature, the more the electromagnetic valves 2 are opened), part of the nitrogen gas passing through the heat exchanger body 1 will flow out from the second nitrogen gas outlet 14 and flow into the second nitrogen gas inlet 12, and this part of nitrogen gas will be mixed with the nitrogen gas from the first nitrogen gas inlet 11 (the first nitrogen gas inlet 11 and the second nitrogen gas inlet 11 are both arranged on the head of the heat exchanger body 1), so as to average the temperature of the two parts of nitrogen gas at the first nitrogen gas inlet 11 and the second nitrogen gas inlet 11, so that the temperature of the nitrogen gas passing through the heat exchanger body 1 is reduced; when the signal of the temperature sensor 4 indicates that the temperature of the nitrogen gas at the first nitrogen gas outlet 13 is in the normal temperature range, the electromagnetic valve 2 is closed, and the nitrogen gas entering the heat exchanger body 1 will flow out from the first nitrogen gas outlet 13; compared with the heat exchanger of the prior art, the embodiment adjusts the nitrogen gas entering and passing through the heat exchanger body 1 by mixing the nitrogen gas with higher temperature with the nitrogen gas that has been cooled, so as to adjust the temperature of the nitrogen gas entering the heat exchanger body 1, so that the entering nitrogen gas is uniform, thereby facilitating the cooling of the nitrogen gas and improving the cooling effect of the heat exchanger on the high-temperature nitrogen gas.

[0024] The water-cooled nitrogen heat exchanger provided by the embodiment 1 of the utility model solves the problem of poor cooling effect of the heat exchanger on the nitrogen gas of the prior art, and can improve the cooling effect of the heat exchanger on the high-temperature nitrogen gas.

[0025] As a preferred solution, in the present embodiment, a second temperature sensor 5 is also included; the second temperature sensor 5 is fixed at the second nitrogen outlet 14; the second temperature sensor 5 is electrically connected with the control panel 3. The second temperature sensor 5 is arranged at the second nitrogen outlet 14, and the nitrogen at the second nitrogen outlet 14 is the nitrogen that has passed through the heat exchanger body 1. By monitoring the temperature of the nitrogen at the second nitrogen outlet 14, it can be determined whether the heat exchanger body 1 effectively reduces the temperature of the nitrogen and achieves the expected cooling effect. By arranging the temperature sensor 4 and the second temperature sensor 5 at the first nitrogen inlet 11 and the second nitrogen outlet 14 respectively, the control panel 3 can compare the actual temperature at the second nitrogen outlet 14 with the set target temperature, and then adjust the state (open or closed) of the electromagnetic valve 2 to adjust the flow to optimize the cooling efficiency. This feedback mechanism can more accurately control the final temperature of the nitrogen and reduce the temperature fluctuation of the nitrogen.

[0026] Since the heat exchanger body 1 has multiple second nitrogen outlets 14, and the opening or closing of these second nitrogen outlets 14 is controlled by the electromagnetic valve 2, when the flow rate of the nitrogen entering from the first nitrogen inlet 11 is constant, opening different numbers of electromagnetic valves 2 will affect the gas pressure in the heat exchanger body 1. In order to maintain the stable nitrogen gas pressure in the heat exchanger body 1 and avoid excessive pressure causing damage to the heat exchanger body, in the present embodiment, a plurality of pressure sensors 6 are also included; the pressure sensors 6 are arranged at the first nitrogen inlet 11 and the first nitrogen outlet 12; the pressure sensors 6 are electrically connected with the control panel 3. When the pressure sensor 6 senses that the pressure is too high, the control panel 3 controls the electromagnetic valve 2 to close, so as to maintain the stable gas pressure in the heat exchanger body 1.

[0027] As a preferred solution, in the present embodiment, an audible and visual alarm 7 is also included; the audible and visual alarm 7 is electrically connected with the control panel 3. When the control panel 3 detects that the pressure is too high from the pressure sensor 6, and at the same time detects that the temperature of the second temperature sensor 5 is high, it means that the heat exchange effect is poor. Therefore, at this time, the audible and visual alarm 7 can be activated to remind the staff, so that the staff can maintain in time.

[0028] In order to avoid the nitrogen entering the first nitrogen inlet 11 from reversing into the second nitrogen outlet 14 after the electromagnetic valve 2 is opened and directly flowing out from the first nitrogen outlet 13, in the present embodiment, a one-way valve 8 is arranged at the pipeline communicating between the gas outlet of the electromagnetic valve 2 and the second nitrogen inlet 12; the direction of the one-way valve 8 is that the gas outlet of the electromagnetic valve 2 faces the second nitrogen inlet 12.

[0029] The utility model discloses water -cooled nitrogen heat exchanger relates to heat exchanger technical field, including heat exchanger body, a plurality of electromagnetic valve, control panel and temperature sensor, the heat exchanger body includes first nitrogen import, second nitrogen import, first nitrogen export and a plurality of second nitrogen export, the temperature sensor is fixed in first nitrogen import, the electromagnetic valve has electromagnetic valve gas import and electromagnetic valve gas export, the second nitrogen export place is connected with electromagnetic valve gas import, electromagnetic valve gas export is connected with second nitrogen import, temperature sensor with control panel electric connection, electromagnetic valve with control panel electric connection, the water -cooled nitrogen heat exchanger provided by the utility model has solved the problem that the cooling effect of prior art heat exchanger to nitrogen is poor, can improve the cooling effect of heat exchanger to high temperature nitrogen.

[0030] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct or indirect application in other related technical fields using the utility model specification and the attached drawing contents are all included in the patent protection range of the utility model.

Claims

1. A water-cooled nitrogen heat exchanger, characterized by, The heat exchanger body, several electromagnetic valves, a control panel and a temperature sensor are included. The heat exchanger body includes a first nitrogen inlet, a second nitrogen inlet, a first nitrogen outlet and a plurality of second nitrogen outlets. The temperature sensor is fixed at the first nitrogen inlet. The electromagnetic valve has an electromagnetic valve gas inlet and an electromagnetic valve gas outlet; the second nitrogen outlet is communicated with the electromagnetic valve gas inlet; the electromagnetic valve gas outlet is communicated with the second nitrogen inlet. The temperature sensor is electrically connected with the control panel. The electromagnetic valve is electrically connected with the control panel.

2. The water-cooled nitrogen gas heat exchanger of claim 1, wherein, A second temperature sensor is further included. The second temperature sensor is fixed at the second nitrogen outlet. The second temperature sensor is electrically connected with the control panel.

3. The water-cooled nitrogen gas heat exchanger of claim 1, wherein A plurality of pressure sensors are further included. The pressure sensors are installed at the first nitrogen inlet and the first nitrogen outlet. The pressure sensors are electrically connected with the control panel.

4. The water-cooled nitrogen gas heat exchanger of claim 3, wherein An audible and visual alarm is further included. The audible and visual alarm is electrically connected with the control panel.

5. The water-cooled nitrogen gas heat exchanger as claimed in claim 3, wherein A one-way valve is arranged at the pipeline communicated between the electromagnetic valve gas outlet and the second nitrogen inlet; the direction of the one-way valve is that the electromagnetic valve gas outlet faces the second nitrogen inlet.

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