Mvr compressor steam buffer device

Abstract

The utility model relates to steam buffer technical field especially relates to a kind of MVR compressor steam buffer device, including tank, the tank is equipped with with upstream evaporator output end intercommunication steam inlet pipe and with downstream compressor input end connection steam discharge pipe, the outside of the tank is wrapped with covering storehouse, the inside of the covering storehouse is equipped with with tank outer wall contact electric heating element, for steam inside tank supplement heat, and the inside of the covering storehouse is also equipped with material preheating pipe, the utility model heats the steam that enters tank by electric heating element, reduce the reduction of steam temperature due to the heat dissipation effect of tank, reduce the waste of heat energy, improve the enthalpy when steam enters subsequent compressor, simultaneously by the waste heat generated in tank preheating material that enters evaporator, the initial temperature of material after preheating enters evaporator is higher, reduce the heat required for evaporator heating, indirectly reduce energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of steam buffering technology, and in particular to a steam buffering device for an MVR compressor. Background Technology

[0002] MVR vapor compression mainly involves heating the material to generate a large amount of secondary steam, which is then discharged into a subsequent compressor for compression. The compressed high-pressure, high-temperature steam is sent back to the heating chamber of the evaporator to serve as a heat source for heating new materials. After releasing heat, the steam condenses into water, and the heated material generates new secondary steam, which is then drawn into the compressor for compression again, thus creating a cycle.

[0003] Currently, in order to stabilize steam pressure, separate liquid droplets, and provide stable intake conditions for the compressor, a buffer tank is usually installed between the steam engine and the compressor. Most existing buffer tanks are single-layer pressure vessels. During the residence of high-temperature secondary steam in the tank, heat is dissipated to the external environment through the tank wall, resulting in a decrease in steam temperature and waste of thermal energy. Furthermore, when the cooled steam enters the compressor, it requires more compression work to reach the target pressure and temperature.

[0004] Based on the above situation, we propose an MVR compressor steam buffer device to solve the aforementioned problems. Utility Model Content

[0005] This invention provides a steam buffer device for an MVR compressor to solve the problem of low energy utilization of steam entering the buffer tank in the prior art.

[0006] The technical problem solved by this utility model is achieved by the following technical solution:

[0007] A steam buffer device for an MVR compressor includes a tank. The tank has a steam inlet pipe connected to the output end of an upstream evaporator and a steam outlet pipe connected to the input end of a downstream compressor. The tank is surrounded by a coating chamber. The interior of the coating chamber is equipped with an electric heating element that contacts the outer wall of the tank to supplement heat to the steam inside the tank. The interior of the coating chamber is also equipped with a material preheating pipe. The input end of the material preheating pipe is connected to the material source to be processed, and the output end is connected to the feed inlet of the evaporator. The material preheating pipe is used to preheat the material entering the evaporator using the waste heat of the steam inside the tank.

[0008] Preferably, the coating chamber is equipped with a heat insulation plate, which divides the coating chamber into two chambers, and the electric heating element and the material preheating pipe are located in the two chambers respectively.

[0009] Preferably, the steam inlet pipe enters along the tangential direction of the tank body, and a spiral channel is provided on the inner wall of the tank body, so that the steam flows unidirectionally along the spiral channel after entering through the tangential inlet.

[0010] Preferably, it also includes a temperature sensor disposed inside the tank and a controller electrically connected to the temperature sensor for monitoring the steam temperature inside the tank.

[0011] Preferably, the inner diameter of the steam discharge pipe gradually decreases towards the compressor to increase the flow rate of steam before it enters the compressor.

[0012] Preferably, the outer side of the covering chamber is wrapped with an insulation layer.

[0013] The beneficial effects of this utility model are as follows: the steam entering the tank is heated by an electric heating element, which reduces the decrease in steam temperature caused by the heat dissipation of the tank, reduces the waste of heat energy, and increases the enthalpy value of the steam when it enters the subsequent compressor. At the same time, the waste heat generated in the tank preheats the material entering the evaporator. The preheated material enters the evaporator at a higher initial temperature, which reduces the heat required for heating in the evaporator and indirectly reduces energy consumption. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 A three-dimensional structural schematic diagram provided for this utility model;

[0016] Figure 2 A front view structural schematic diagram provided for this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram provided for this utility model.

[0018] In the diagram, 1 is the tank body; 2 is the steam inlet pipe; 3 is the steam outlet pipe; 4 is the coating chamber; 5 is the electric heating element; 6 is the material preheating pipe; 7 is the heat insulation plate; 8 is the spiral channel; 9 is the temperature sensor; 10 is the controller; and 11 is the insulation layer. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0020] Reference Figures 1-3 As shown, an MVR compressor steam buffer device includes a tank 1. In use, the tank 1 is provided with a steam inlet pipe 2 and a steam outlet pipe 3. The steam inlet pipe 2 is connected to the output end of the upstream evaporator, and the steam outlet pipe 3 is connected to the input end of the downstream compressor. At this time, the tank 1 is located between the evaporator and the compressor. The steam in the evaporator enters the tank 1 for buffering, and the steam that has been processed in the tank 1 enters the compressor for compression.

[0021] To reduce heat loss from the steam entering the tank 1, a covering chamber 4 is installed on the outside of the tank 1. The covering chamber 4 contains an electric heating element 5, which can be a heating plate, heating wire, etc., surrounding the outside of the tank 1 and contacting its outer wall. Activating the electric heating element 5 replenishes heat to the steam inside the tank 1, reducing heat loss and increasing the enthalpy of the steam entering the subsequent compressor. This provides stable intake conditions for the compressor and reduces the compressor's power consumption for target pressure and temperature. Since the inside of the tank 1 contains heat, to minimize heat waste, the covering chamber 4... The tank is equipped with a material preheating pipe 6, and the input end of the material preheating pipe 6 is connected to the material source to be processed. After the electric heating element 5 emits heat to heat the inside of the tank 1, the material in the material source flows in the material preheating pipe 6 and is preheated by the heat emitted by the tank 1. In actual use, the material preheating pipe 6 does not need to contact the surface of the tank 1 to prevent the material from being overheated in advance. For example, if the heat of evaporation in the evaporator is 100 degrees, the material is preheated to 60 degrees by the material preheating pipe 6. When the preheated material enters the evaporator, the initial temperature is higher, which reduces the heat required for heating in the evaporator and indirectly reduces energy consumption.

[0022] Reference Figure 3 As shown, a heat insulation plate 7 is further provided inside the coating chamber 4. The heat insulation plate 7 divides the coating chamber 4 into two chambers. At this time, the electric heating element 5 and the material preheating pipe 6 are located in the two chambers respectively. After the heat insulation plate 7 blocks the two, it can prevent the heat generated by the electric heating element 5 from being directly absorbed by the material preheating pipe 6, thereby reducing the overheating of the material in the material preheating pipe 6.

[0023] Reference Figure 1 As shown, further, the steam inlet pipe 2 enters along the tangential direction of the tank 1, guiding the steam to enter along the inner wall of the tank 1. At the same time, a spiral channel 8 is provided on the inner wall of the tank 1. After entering through the tangential inlet, the steam flows unidirectionally along the spiral channel 8. Since the heat of the side wall of the tank 1 is higher, the steam can fully absorb the heat of the side wall, reduce its own temperature drop, and reduce heat loss.

[0024] Reference Figures 1-3 As shown, it further includes a temperature sensor 9 located inside the tank 1 and a controller 10 electrically connected to the temperature sensor 9. The temperature sensor 9 monitors the steam temperature at the front of the tank 1. When the temperature inside the tank 1 reaches a certain threshold, the temperature sensor 9 transmits a signal to the controller 10. The controller 10 controls the electric heating element 5 to start and stop, avoiding overheating or underheating, ensuring stable steam parameters, and promptly detecting temperature abnormalities, facilitating quick troubleshooting of system problems, and ensuring stable system operation.

[0025] The outer side of the covering chamber 4 is wrapped with an insulation layer 11, which can be made of rock wool, polyurethane foam, etc., to reduce the loss of internal temperature of the tank 1, avoid the impact of external temperature fluctuations on the efficiency of the electric heating element 5 and the material preheating pipe 6, reduce the heat replenishment load of the electric heating element 5, and save energy.

[0026] Reference Figure 2 As shown, further, the inner diameter of the steam discharge pipe 3 gradually decreases towards the compressor. When the steam inside the tank 1 enters the compressor through the steam discharge pipe 3, the steam discharge pipe 3 forms a gradually narrowing channel, which increases the steam flow rate, reduces the stagnation in the pipe, and increases the steam kinetic energy by increasing the flow rate, which helps the compressor to intake air and reduces the energy consumption in the initial stage of compression.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A steam buffer device for an MVR compressor, comprising a tank (1), wherein the tank (1) is provided with a steam inlet pipe (2) connected to the output end of an upstream evaporator and a steam outlet pipe (3) connected to the input end of a downstream compressor, characterized in that, The outer side of the tank (1) is covered with a coating chamber (4). The inside of the coating chamber (4) is provided with an electric heating element (5) that contacts the outer wall of the tank (1) to supplement the heat of the steam in the tank (1). The inside of the coating chamber (4) is also provided with a material preheating pipe (6). The input end of the material preheating pipe (6) is connected to the material source to be processed, and the output end is connected to the feed port of the evaporator to preheat the material entering the evaporator by the residual heat of the steam in the tank (1).

2. The steam buffer device for an MVR compressor according to claim 1, characterized in that, The coating chamber (4) is equipped with a heat insulation plate (7) inside, which divides the coating chamber (4) into two chambers, and the electric heating element (5) and the material preheating pipe (6) are located in the two chambers respectively.

3. The steam buffer device for an MVR compressor according to claim 1, characterized in that, The steam inlet pipe (2) enters along the tangential direction of the tank body (1), and a spiral channel (8) is provided on the inner wall of the tank body (1). After entering through the tangential inlet, the steam flows unidirectionally along the spiral channel (8).

4. A steam buffer device for an MVR compressor according to claim 1, characterized in that, It also includes a temperature sensor (9) installed inside the tank (1) and a controller (10) electrically connected to the temperature sensor (9) for monitoring the steam temperature inside the tank (1).

5. A steam buffer device for an MVR compressor according to claim 1, characterized in that, The inner diameter of the steam discharge pipe (3) gradually decreases towards the compressor to increase the flow rate of steam before it enters the compressor.

6. A steam buffer device for an MVR compressor according to claim 1, characterized in that, The outer side of the covered compartment (4) is covered with an insulation layer (11).

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