Wet acetylene clear liquid waste heat utilization device

Abstract

The utility model relates to the technical field of waste heat recovery, in particular to a wet acetylene clear liquid waste heat utilization device which comprises an acetylene clear liquid pool, a production water pipeline unit and a heat exchange tube nest. The heat exchange tube nest is arranged in the acetylene clear liquid tank and is connected with the production water pipeline unit. According to the utility model, heat exchange is realized by adding the branch of the production water pipeline unit and connecting the heat exchange tube nest in the acetylene clear liquid pool, so that the waste heat of the wet acetylene clear liquid is effectively transferred to the production equipment pipeline needing to be heated, and the temperature of the acetylene clear liquid is reduced, thereby realizing the recycling of preheating and reducing the energy consumption. And the energy utilization efficiency is improved, and meanwhile the production requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a device for utilizing waste heat of wet-process acetylene clear liquid. Background Art

[0002] In chemical production, the temperature of the wet acetylene clear liquid pool is above 50°C, while the clear liquid temperature required by the generator system must be below 40°C. Otherwise, the high-temperature clear liquid will be directly injected into the generator, which will affect the normal operation of the generator and is not conducive to stable production operation.

[0003] At present, the cooling measure for the clear liquid is to transport the clear liquid to the water drying tower and use the fan to drive the air flow to cool the clear liquid. This part of the heat is a direct loss, and other equipment must be used to consume power to maintain the cooling process. On the other hand, other processes in chemical production, such as industrial water in the desalted water production process, have temperature requirements. When the water temperature is insufficient, steam heat exchange is required to increase the temperature to meet production needs. Other equipment also needs to be used to consume power to maintain the heating process, which consumes a lot of energy and is costly.

[0004] Therefore, in order to reduce production energy consumption and improve energy utilization, a device for utilizing waste heat from wet acetylene clear liquid is urgently needed. Utility Model Content

[0005] In order to overcome the problems existing in the prior art, the utility model aims to provide a device for utilizing waste heat of wet acetylene clear liquid, which combines the cooling process of acetylene clear liquid with other production processes, realizes the recovery and utilization of waste heat, and reduces production energy consumption.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for utilizing waste heat of wet acetylene clear liquid, comprising an acetylene clear liquid tank, a production water pipeline unit and heat exchange tubes; the heat exchange tubes are arranged in the acetylene clear liquid tank, and the heat exchange tubes are connected to the production water pipeline unit.

[0007] The utility model is further configured as follows: the heat exchange tubes include a water inlet and a water inlet pipeline, the water inlet is connected to one end of the water inlet pipeline through a flange, and the other end of the water inlet pipeline is connected to the production water pipeline unit; a first valve is also arranged on the water inlet pipeline.

[0008] The utility model is further configured as follows: the heat exchange tubes further include a water outlet and a water outlet pipeline, the water outlet is connected to one end of the water outlet pipeline through a flange, and the other end of the water outlet pipeline is connected to the production water pipeline unit.

[0009] The utility model is further configured as follows: the installation height of the heat exchange tubes is located below the liquid surface in the acetylene clear liquid pool.

[0010] The production water enters the heat exchange tubes of the acetylene clear liquid pool through the newly added bypass branch, i.e. the water inlet pipeline. The temperature of the clear liquid in the pool is used to exchange heat with the production water in the tube to raise the temperature. The heated production water is then transported back to the original production water pipeline unit.

[0011] The utility model is further configured as follows: the production water pipeline unit comprises a production water pump, a main pipe and a storage tank; one end of the main pipe is connected to the storage tank, and the other end of the main pipe is connected to an external production water source; the production water pump is arranged on the main pipe away from the storage tank.

[0012] The utility model is further configured as follows: a temperature sensor and a flow sensor are also arranged on the main pipe; the main pipe is connected to the water inlet pipe, the water outlet pipe, the temperature sensor, the flow sensor and the storage tank in sequence from the production water pump.

[0013] The utility model is further configured as follows: a second valve is also arranged on the main pipe, and the second valve is arranged on the main pipe between the water inlet pipe and the water outlet pipe.

[0014] The utility model is further configured as follows: the first valve and the temperature sensor are electrically connected to an external control device, and the first valve, the temperature sensor and the external control device form a control loop.

[0015] According to the temperature of the produced water entering the storage tank in the main pipeline detected by the temperature sensor, the opening of the first valve is adjusted to achieve self-adjustment of the temperature. If the temperature sensor detects that the temperature of the produced water in the main pipeline is lower than the preset value, the external control device controls the opening of the first valve to increase; if the temperature sensor detects that the temperature of the produced water in the main pipeline is higher than the preset value, the external control device reduces or closes the opening of the first valve.

[0016] The utility model is further configured as follows: the second valve and the flow sensor are electrically connected to an external control device, and the second valve, the flow sensor and the external control device form a control loop.

[0017] According to the flow rate of produced water entering the storage tank in the main pipeline detected by the flow sensor, the opening of the second valve is adjusted to achieve self-adjustment of the flow rate to meet production needs. If the flow rate of produced water in the main pipeline detected by the flow sensor is lower than the preset value, the external control device controls the opening of the second valve to increase; otherwise, the external control device controls the opening of the second valve to decrease or close the second valve.

[0018] In summary, the beneficial effects of the above technical solution of the utility model are as follows:

[0019] 1. The utility model realizes heat exchange by adding a branch of the production water pipeline unit and connecting the heat exchange tubes in the acetylene clear liquid pool, thereby effectively transferring the waste heat of the wet acetylene clear liquid to the production water pipeline unit that needs to be heated, thereby realizing energy reuse, improving energy utilization efficiency and meeting production needs.

[0020] 2. The utility model controls the flow rate entering the heat exchange tubes and the flow rate in the main pipe according to the temperature sensor and the flow sensor, thereby controlling the amount of water exchanged, and further realizing temperature control, and recovering and utilizing heat to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Acetylene clear liquid tank, 2. Heat exchange tubes, 21. Water inlet pipeline, 22. Water outlet pipeline, 3. Main pipeline, 4. Production water pump, 5. Storage tank, 6. First valve, 7. Second valve, 8. Temperature sensor, 9. Flow sensor. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the following is a clear and complete description of the technical solution of the present invention in conjunction with the drawings of the present invention. Based on the embodiments of the present invention, other similar embodiments obtained by ordinary technicians in the field without creative work should all fall within the scope of protection of the present invention. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the creation of the present invention.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0027] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0028] Example:

[0029] like Figure 1 As shown, it is a preferred embodiment of the utility model, a wet acetylene liquid waste heat utilization device, comprising an acetylene liquid pool 1, a production water pipeline unit and a heat exchange tube 2; the heat exchange tube 2 is arranged in the acetylene liquid pool 1, the heat exchange tube 2 is connected to the production water pipeline unit, and the installation height of the heat exchange tube 2 is located below the liquid surface in the acetylene liquid pool 1.

[0030] The heat exchange tube 2 includes a water inlet and a water inlet pipeline 21, wherein the water inlet is connected to one end of the water inlet pipeline 21 through a flange, and the other end of the water inlet pipeline 21 is connected to the production water pipeline unit; a first valve 6 is also provided on the water inlet pipeline 21. The heat exchange tube 2 also includes a water outlet and a water outlet pipeline 22, wherein the water outlet is connected to one end of the water outlet pipeline 22 through a flange, and the other end of the water outlet pipeline 22 is connected to the production water pipeline unit.

[0031] The production water enters the heat exchange tubes 2 of the acetylene clear liquid pool 1 through the bypass branch newly added to the production water pipeline unit, namely the water inlet pipeline 21, and uses the clear liquid temperature in the pool to exchange heat with the production water in the tube to increase the temperature. The heated production water is transported back to the original production water pipeline unit through the water outlet pipeline 22. In this process, the clear liquid temperature in the acetylene clear liquid pool 1 will also drop due to heat exchange, so as to avoid the high temperature affecting the normal operation of the generator when the acetylene clear liquid is used later.

[0032] The production water pipeline unit includes a production water pump 4, a main line 3 and a storage tank 5; one end of the main line 3 is connected to the storage tank 5, and the other end of the main line 3 is connected to an external production water source; the production water pump 4 is arranged on the main line 3 away from the storage tank 5.

[0033] The main pipe 3 is also provided with a temperature sensor 8 and a flow sensor 9; the main pipe 3 is connected to the water inlet pipe 21, the water outlet pipe 22, the temperature sensor 8, the flow sensor 9 and the storage tank 5 in sequence from the production water pump 4.

[0034] The main pipe 3 is further provided with a second valve 7 , and the second valve 7 is arranged on the main pipe 3 between the water inlet pipe 21 and the water outlet pipe 22 .

[0035] The first valve 6 and the temperature sensor 8 are electrically connected to an external control device, and the first valve 6, the temperature sensor 8 and the external control device form a control loop.

[0036] According to the temperature of the produced water entering the storage tank 5 in the main pipe 3 detected by the temperature sensor 8, the opening of the first valve 6 is adjusted to achieve self-adjustment of the temperature. If the temperature sensor 8 detects that the temperature of the produced water in the main pipe 3 is lower than the preset value, the external control device controls the opening of the first valve 6 to increase; if the temperature sensor 8 detects that the temperature of the produced water in the main pipe 3 is higher than the preset value, the external control device reduces or closes the opening of the first valve 6.

[0037] The second valve 7 and the flow sensor 9 are electrically connected to an external control device, and the second valve 7, the flow sensor 9 and the external control device form a control loop.

[0038] According to the flow rate of produced water entering the storage tank 5 in the main pipeline 3 detected by the flow sensor 9, the opening of the second valve 7 is adjusted to achieve self-adjustment of the flow rate to meet the production needs. If the flow sensor 9 detects that the flow rate of produced water in the main pipeline 3 is lower than the preset value, the external control device controls the opening of the second valve 7 to increase; otherwise, the external control device controls the opening of the second valve 7 to decrease or close the second valve 7.

[0039] In summary, in actual application, the production water pump 4 introduces the production water into the production water pipeline unit, and the external control device controls the opening of the first valve 6 and the second valve 7 according to the temperature sensor 8 and the flow sensor 9. The production water enters the heat exchange tube 2 through the water inlet pipeline 21 to exchange heat with the clear liquid in the acetylene clear liquid pool 1, reducing the temperature of the acetylene clear liquid. After the production water temperature is increased, it returns to the production water pipeline unit through the water outlet pipeline 22 and enters the storage tank 5 for subsequent use. The utility model effectively transfers the waste heat of the wet acetylene clear liquid to the production equipment pipeline that needs to be heated, thereby realizing the reuse of energy, improving energy utilization efficiency and meeting production needs.

[0040] Finally, it should be noted that the above-mentioned embodiment only expresses one implementation method of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A device for utilizing waste heat of wet acetylene clear liquid, characterized in that: It comprises an acetylene clear liquid pool, a production water pipeline unit and heat exchange tubes; the heat exchange tubes are arranged in the acetylene clear liquid pool, and the heat exchange tubes are connected to the production water pipeline unit.

2. A device for utilizing waste heat of wet acetylene clear liquid according to claim 1, characterized in that: The heat exchange tubes include a water inlet and a water inlet pipeline. The water inlet is connected to one end of the water inlet pipeline through a flange, and the other end of the water inlet pipeline is connected to the production water pipeline unit. A first valve is also provided on the water inlet pipeline.

3. A device for utilizing waste heat of wet acetylene clear liquid according to claim 2, characterized in that: The heat exchange tubes further include a water outlet and a water outlet pipeline. The water outlet is connected to one end of the water outlet pipeline via a flange, and the other end of the water outlet pipeline is connected to the production water pipeline unit.

4. A device for utilizing waste heat of wet acetylene clear liquid according to claim 1, characterized in that: The heat exchange tubes are located below the liquid surface in the acetylene clear liquid pool.

5. A device for utilizing waste heat of wet acetylene clear liquid according to claim 3, characterized in that: The production water pipeline unit includes a production water pump, a main pipe and a storage tank; one end of the main pipe is connected to the storage tank, and the other end of the main pipe is connected to an external production water source; the production water pump is arranged on the main pipe away from the storage tank.

6. A device for utilizing waste heat of wet acetylene clear liquid according to claim 5, characterized in that: The main pipe is also provided with a temperature sensor and a flow sensor; the main pipe is connected to the water inlet pipe, the water outlet pipe, the temperature sensor, the flow sensor and the storage tank in sequence from the production water pump.

7. A device for utilizing waste heat of wet acetylene clear liquid according to claim 6, characterized in that: The main pipe is also provided with a second valve, and the second valve is provided on the main pipe between the water inlet pipe and the water outlet pipe.

8. The device for utilizing waste heat of wet process acetylene clear liquid according to claim 6, characterized in that: The first valve and the temperature sensor are electrically connected to an external control device, and the first valve, the temperature sensor and the external control device form a control loop.

9. The device for utilizing waste heat of wet process acetylene clear liquid according to claim 7, characterized in that: The second valve and the flow sensor are electrically connected to an external control device, and the second valve, the flow sensor and the external control device form a control loop.

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