A pyrazole alcohol hydrochloride condensation recovery device

Abstract

The utility model discloses a pyrazole alcohol hydrochloride condensation recovery device, including base, horizontal storage tank, vertical storage tank, heat exchanger, horizontal storage tank is horizontally set up on the base through the support, vertical storage tank is located on the base, and is located horizontal storage tank side, heat exchanger is located horizontal storage tank side, is used for accessing high temperature condensate, heat exchanger, horizontal storage tank, vertical storage tank are connected in proper order through the connecting pipeline, heat exchanger still is connected with vertical storage tank through a plurality of delivery pumps, still be equipped with stop valve between heat exchanger and delivery pump. Pyrazole alcohol hydrochloride condensation recovery device of the application has designed two branch lines to realize condensation, the first branch line is pressurized delivery to vertical storage tank through the delivery pump of parallel arrangement, the second branch line realizes pumpless natural flow with the help of pressure difference, horizontal storage tank does not need to pass through pump body and directly flows into vertical storage tank, and the double -way synchronous delivery of peak period avoids the jam, and the single -way operation of valley value period saves energy consumption.

Description

Technical Field

[0001] This utility model belongs to the field of pyrazol hydrochloride production, and specifically relates to a pyrazol hydrochloride condensation and recovery device. Background Technology

[0002] As a key chemical intermediate, pyrazolium hydrochloride generates a large amount of high-temperature condensate during its production process, including steam heating and distillation concentration. The efficiency of condensate recovery and water quality control directly affect production energy consumption and product purity. In existing technologies, condensate recovery systems mostly adopt a single storage tank combined with a single branch conveying structure. That is, after the high-temperature condensate is cooled by a heat exchanger, it is either directly conveyed to the storage device by a single pump, or it is buffered in the storage tank and then pressurized and conveyed by the pump. The branch design lacks flexibility.

[0003] The existing technologies have several prominent problems: First, unreasonable branch design leads to poor system adaptability. The single branch structure cannot balance the fluctuations in water volume during batch production. During peak periods, the heat exchanger outlet pressure is prone to be too high and the delivery is not timely, while during valley periods, the pump may run dry and be damaged. Second, water quality is not guaranteed. If the pump is set after the storage tank, it will stir the impurities settled in the tank (such as raw material residues, inorganic salts, and rust particles), causing the impurities to be resuspended and polluting the recycled water. Third, energy consumption and maintenance costs are high. The single pump design requires long-term full-load operation to cope with peak flow, resulting in serious energy waste. In addition, the pump needs to be shut down for maintenance when it fails, interrupting the condensate recovery process. Fourth, pressure balance is difficult to control. There is a lack of scientific differential pressure regulation mechanism between the storage tank and the pipeline. When the water is transported from the low-level storage tank to the high-level storage equipment, the flow is prone to be obstructed or the pressure is unbalanced.

[0004] Therefore, the above problems urgently need to be solved. Utility Model Content

[0005] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of this utility model is to provide a pyrazol hydrochloride condensation and recovery device, which is designed with two branches to achieve condensation; the first branch is pressurized and transported to the vertical storage tank by parallel delivery pumps, and the second branch achieves pump-free natural flow by means of pressure difference. The horizontal storage tank does not need to go through the pump body and directly flows into the vertical storage tank. During peak periods, the two branches transport synchronously to avoid congestion, and during off-peak periods, the single branch operates to save energy. Moreover, the pump-free design of the horizontal storage tank avoids secondary disturbance by impurities and ensures the quality of recycled water.

[0006] Technical Solution: To achieve the above objectives, this utility model provides a pyrazolium hydrochloride condensation recovery device, comprising a base, a horizontal storage tank, a vertical storage tank, and a heat exchanger. The horizontal storage tank is horizontally mounted on the base via a support; the vertical storage tank is mounted on the base and located beside the horizontal storage tank; the heat exchanger is located on the side of the horizontal storage tank for receiving high-temperature condensate; the heat exchanger, the horizontal storage tank, and the vertical storage tank are sequentially connected via connecting pipelines; the heat exchanger is also connected to the vertical storage tank via several transfer pumps; a shut-off valve is also provided between the heat exchanger and the transfer pumps. The base provides a stable installation foundation, and the horizontal installation design of the support for the horizontal storage tank ensures the structural stability of the equipment during operation, preventing pipeline leakage caused by vibration. The layout of the vertical storage tank next to the horizontal storage tank shortens the length of the connecting pipeline, reducing friction resistance and heat loss. The heat exchanger is set up close to the horizontal storage tank, facilitating the rapid delivery of high-temperature condensate to subsequent processing units and improving heat exchange efficiency. By designing a dual-branch system for the heat exchanger, horizontal storage tank, vertical storage tank, and transfer pump in the vertical storage tank, it not only adapts to water volume fluctuations in batch production but also achieves complementary functions of buffering settling and rapid pressurization, solving the problem of insufficient adaptability of a single branch.

[0007] Furthermore, several check valves are installed on the connecting pipeline to prevent condensate backflow and avoid contamination of the branch water quality.

[0008] Furthermore, the vertical storage tank is equipped with a climbing ladder on its side and a manhole on its top, providing a safe and convenient access for operators to periodically enter the tank through the top manhole to clean sediment and inspect the tank wall for corrosion.

[0009] Furthermore, both the horizontal and vertical storage tanks are equipped with pressure balancing pipelines at the top to prevent negative or overpressure caused by the inflow and outflow of condensate, thus preventing tank wall deformation.

[0010] Furthermore, the delivery pumps are arranged in parallel, and at least two are provided, realizing a redundant design of one in use and one in standby. When the main pump fails or is under maintenance, it can be quickly switched to the standby pump without stopping the machine.

[0011] Furthermore, both the horizontal storage tank and the bottom of the vertical storage tank are equipped with drain pipes, which can periodically discharge impurities from the tank to prevent blockage.

[0012] As can be seen from the above technical solution, this utility model has the following beneficial effects: 1. This utility model discloses a pyrazol hydrochloride condensation and recovery device, which is designed with dual branches to achieve condensation. The first branch is pressurized and transported to a vertical storage tank by parallel delivery pumps. The second branch achieves pump-free natural flow by means of pressure difference. The horizontal storage tank does not need to go through the pump body and directly flows into the vertical storage tank. During peak periods, the dual branches deliver synchronously to avoid congestion. During off-peak periods, the single branch operates to save energy. Moreover, the pump-free design of the horizontal storage tank avoids secondary disturbance by impurities and ensures the quality of recycled water.

[0013] 2. This utility model provides a pyrazol hydrochloride condensation and recovery device, which combines a dual-pump design with one pump in use and one in standby, and independent branch control, to significantly improve the continuity of equipment operation and meet the compliance requirements and efficiency needs of refined production of pyrazol hydrochloride. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a pyrazolium hydrochloride condensation and recovery device according to the present invention; Figure 2 This is a schematic diagram of the structure around the delivery pump in a pyrazolol hydrochloride condensation and recovery device according to the present invention; In the picture: 1-Base; 2- Horizontal storage tank; 3-Vertical storage tank; 31-Climbing ladder; 32-Manhole; 4-Heat exchanger; 5-Connecting pipeline; 51-Check valve; 6-Transfer pump; 61-Stop valve; 7-Pressure balancing pipeline; 8-Sewage pipe. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Example

[0016] In this embodiment, as Figure 1 and Figure 2This utility model discloses a pyrazol hydrochloride condensation recovery device, including a base 1, a horizontal storage tank 2, a vertical storage tank 3, and a heat exchanger 4. The horizontal storage tank 2 is horizontally mounted on the base 1 via a support. The vertical storage tank 3 is mounted on the base 1 and located beside the horizontal storage tank 2. The heat exchanger 4 is located on the side of the horizontal storage tank 2 and is used to receive high-temperature condensate. The heat exchanger 4, the horizontal storage tank 2, and the vertical storage tank 3 are connected in sequence via connecting pipes 5. The heat exchanger 4 is also connected to the vertical storage tank 3 via several transfer pumps 6. A shut-off valve 61 is also provided between the heat exchanger 4 and the transfer pumps 6.

[0017] Specifically, a dual-branch system is implemented. The first branch uses parallel conveying pumps 6 to pressurize and transport the material to the vertical storage tank 3. The second branch uses pressure difference to achieve pump-free natural flow, allowing the horizontal storage tank 2 to flow directly into the vertical storage tank 3 without passing through a pump. During peak periods, the dual-branch synchronous delivery avoids congestion, while during off-peak periods, single-branch operation saves energy.

[0018] Specifically, the heat exchanger 4 is preferably a plate heat exchanger; the pressure balancing pipeline 7 is connected to the external workshop exhaust main pipe to control the pressure inside the tank.

[0019] In this embodiment, as Figure 1 and Figure 2 The connecting pipeline 5 is equipped with several check valves 51.

[0020] Specifically, the return valve 51 is selected as a silent check valve as an option to avoid noise generated by water flow impact and to meet the environmental protection requirements of the workshop.

[0021] In this embodiment, as Figure 1 and Figure 2 The vertical storage tank 3 is equipped with a climbing ladder 31 on its side.

[0022] In particular, several rest platforms can be added in the middle of the climbing ladder 31 to accommodate long-term maintenance work at height.

[0023] In this embodiment, as Figure 1 and Figure 2 The vertical storage tank 3 is provided with a manhole 32 on its top.

[0024] Specifically, quick-opening flange manholes are preferred for manhole 32, and sealing gaskets can be added around the perimeter to enhance its sealing performance.

[0025] In this embodiment, as Figure 1 and Figure 2 Both the horizontal storage tank 2 and the vertical storage tank 3 are equipped with air pressure balance pipelines 7 at their tops.

[0026] Specifically, a pressure regulating valve can be added to the air pressure balance pipeline 7 as an alternative to automatically control the pressure inside the tank and avoid overpressure or negative pressure.

[0027] In this embodiment, as Figure 1 and Figure 2 The delivery pumps 6 are arranged in parallel, and at least two are provided.

[0028] A special linkage control module can be set between the two transfer pumps 6. If the transfer pump 6 in use fails, such as when the outlet pressure is lower than 0.2MPa, the standby transfer pump 6 will automatically start within 3 seconds to achieve uninterrupted delivery.

[0029] In this embodiment, as Figure 1 and Figure 2 Both the horizontal storage tank 2 and the vertical storage tank 3 are equipped with drain pipes 8 on their sides.

[0030] Specifically, the end of the sewage pipe 8 can be connected to the workshop wastewater collection main pipe, and a sampling port is set up to facilitate the detection of sewage quality and meet environmental traceability requirements.

[0031] The working principle of the above embodiments is as follows: This utility model discloses a pyrazol hydrochloride condensate recovery device. The high-temperature condensate generated during the production of pyrazol hydrochloride is connected to a heat exchanger 4. After being cooled by waste heat recovery, it is transported in two parallel paths: the first branch enters the parallel-set transfer pump 6 through a shut-off valve 61, and after being pressurized, it is directly sent into a vertical storage tank 3; the second branch flows into a horizontal storage tank 2, and after buffering and settling impurities, it naturally flows into the vertical storage tank 3 through a connecting pipe 5 with the help of pressure difference; the horizontal storage tank 2 and the vertical storage tank 3 maintain stable pressure through a top air pressure balance pipe 7. The vertical storage tank 3 has a side climbing ladder 31 and a top manhole 32 for easy maintenance. The sewage pipes 8 on the side of the horizontal storage tank 2 and the bottom of the vertical storage tank 3 regularly discharge sediment, ultimately achieving efficient recovery and compliant reuse of condensate.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A pyrazolium hydrochloride condensation and recovery device, characterized in that: include: The base (1) and the horizontal storage tank (2) are horizontally mounted on the base (1) by means of a support. Vertical storage tank (3), which is mounted on a base (1) and located next to the horizontal storage tank (2); Heat exchanger (4), which is located on the side of the horizontal storage tank (2) and is used to connect high temperature condensate; The heat exchanger (4), horizontal storage tank (2), and vertical storage tank (3) are connected in sequence through connecting pipes (5); The heat exchanger (4) is also connected to the vertical storage tank (3) via several transfer pumps (6); A shut-off valve (61) is also provided between the heat exchanger (4) and the delivery pump (6).

2. The pyrazol hydrochloride condensation and recovery device according to claim 1, characterized in that: Several check valves (51) are provided on the connecting pipeline (5).

3. The pyrazol hydrochloride condensation and recovery device according to claim 1, characterized in that: The vertical storage tank (3) is equipped with a climbing ladder (31) on its side.

4. The pyrazol hydrochloride condensation and recovery device according to claim 1, characterized in that: The vertical storage tank (3) is provided with a manhole (32) on the top.

5. The pyrazol hydrochloride condensation and recovery device according to claim 1, characterized in that: Both the horizontal storage tank (2) and the vertical storage tank (3) are equipped with air pressure balance pipelines (7) at the top.

6. The pyrazolium hydrochloride condensation and recovery device according to claim 1, characterized in that: The delivery pumps (6) are arranged in parallel, and at least two are provided.

7. The pyrazol hydrochloride condensation and recovery device according to claim 1, characterized in that: The horizontal storage tank (2) is equipped with a drain pipe (8) on its side and the vertical storage tank (3) is equipped with a drain pipe (8) at its bottom.

Images