Hot Press Test System

Abstract

The present invention discloses a hot press test system. The hot press test system includes a hot press, a heat exchanger, and a desuperheater. The hot press has an ejector steam pipeline, a motive steam pipeline, and an outlet pipeline. The ejector steam pipeline and the motive steam pipeline are connected to a heater, and the heater is used to adjust the steam temperature in the pipeline. The heat exchanger has a feed water inlet, a drain outlet, a steam inlet, and a steam outlet. The feed water inlet and the drain outlet are connected to a water tank, the steam outlet is connected to the heater, the steam inlet is connected to the outlet pipeline, and the desuperheater has two units respectively installed on the ejector steam pipeline and the motive steam pipeline. The hot press test system provided by the present invention simulates various working conditions of the hot press to enrich the design optimization data of the hot press, and has the advantage of flexible adjustment of the pressure and temperature of the motive steam and the ejector steam in the pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of hot presses, and in particular to a hot press test system. Background Art

[0002] For the mature hot press technologies at home and abroad, the external output steam pressure is basically relatively small, and most of the technologies come from foreign enterprises, with high costs. The theoretical basis and design experience of domestic similar products are insufficient. Especially, the lack of a database of experience coefficients related to hot presses makes it difficult to support the design optimization work of high-performance hot presses. There are generally problems such as low ejector efficiency, high noise, and vibration, and the product competitiveness is insufficient. With the continuous improvement of the industrial steam supply pressure level, the existing hot press technologies are difficult to meet the demand for high-pressure steam supply. Currently, the relevant research on high-pressure hot presses at home and abroad is scarce, and the performance research on high-pressure hot presses is insufficient. The research on high-pressure hot presses abroad has just started, while the demand for high-pressure steam supply in China is becoming increasingly urgent. It is necessary to quickly conduct domestic high-pressure hot press tests, design optimization, and development. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems in the related technologies to some extent.

[0004] To this end, an embodiment of the present invention provides a hot press test system. The hot press test system simulates various working conditions of the hot press to enrich the design optimization data of the hot press, and has the advantages of flexible adjustment of the pressure and temperature of the motive steam and the ejector steam in the pipeline.

[0005] According to the hot press test system of the embodiment of the present invention, the hot press test system includes a hot press, a heat exchanger, and a desuperheater. The hot press has an ejector steam pipeline, a motive steam pipeline, and an outlet pipeline. The ejector steam pipeline and the motive steam pipeline are connected to a heater, and the heater is used to adjust the steam temperature in the pipeline. The heat exchanger has a feed water inlet, a drain outlet, a steam inlet, and a steam outlet. The feed water inlet and the drain outlet are connected to a water tank, the steam outlet is connected to the heater, the steam inlet is connected to the outlet pipeline, and the desuperheater has two and is respectively installed on the ejector steam pipeline and the motive steam pipeline.

[0006] According to the hot press test system of the embodiment of the present invention, the hot press test system simulates various working conditions of the hot press to enrich the design optimization data of the hot press, and has the advantages of flexible adjustment of the pressure and temperature of the motive steam and the ejector steam in the pipeline.

[0007] In some embodiments, the hot press test system further includes a feed water pump. The inlet of the feed water pump is connected to the outlet of the water tank, and the outlet of the feed water pump is connected to the feed water inlet.

[0008] In some embodiments, the steam outlet is connected to the inlet of the heater, the outlet of the heater is connected to the first end of the ejector steam pipeline and the first end of the motive steam pipeline, and the second end of the motive steam pipeline constitutes the motive steam inlet of the hot press.

[0009] In some embodiments, a first flowmeter, a first pressure gauge, and a first thermometer are connected in series on the ejector steam pipeline, a second pressure gauge and a second thermometer are connected in series on the motive steam pipeline, and a third pressure gauge and a second flowmeter are connected in series on the outlet pipeline.

[0010] In some embodiments, the hot press test system further includes a DCS system, and the DCS system is electrically connected to the hot press, the first pressure gauge, the first thermometer, the third pressure gauge, and the second flowmeter to obtain parameters such as the pressure, temperature, and flow rate of the motive steam and the ejector steam.

[0011] In some embodiments, a first regulating valve, a first check valve, and a first desuperheater are connected in series on the ejector steam pipeline.

[0012] In some embodiments, a second regulating valve, a second check valve, and a second desuperheater are connected in series on the motive steam pipeline.

[0013] In some embodiments, a third regulating valve is installed on the outlet pipeline.

[0014] In some embodiments, a safety valve is installed on the outlet pipeline.

[0015] In some embodiments, the heater is an electric heater. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the hot press test system according to an embodiment of the present invention.

[0017] Reference numerals: 100, hot press; 101, motive steam inlet; 102, ejector steam inlet; 103, external supply steam outlet; 200, water tank; 201, water tank inlet; 202, water tank outlet; 3, feed water pump; 4, heat exchanger; 41, feed water inlet; 42, drain outlet; 43, steam inlet; 44, steam outlet; 5, heater; 51, heater feed water inlet; 52, heater feed water outlet; 6, first regulating valve; 7, first desuperheater; 8, first check valve; 9, first flowmeter; 10, first pressure gauge; 11, first thermometer; 12, DCS system; 13, second regulating valve; 14, second desuperheater; 15, second check valve; 16, second pressure gauge; 17, second thermometer; 18, third pressure gauge; 19, safety valve; 20, second flowmeter; 21, third regulating valve. Detailed Embodiments

[0018] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0019] The hot press test system according to an embodiment of the present invention, as Figure 1 shown, the hot press test system includes a hot press 100, a heat exchanger 4 and a desuperheater. The hot press 100 has an ejector steam pipe, a motive steam pipe and an outlet pipe. The ejector steam pipe and the motive steam pipe are connected to a heater 5, and the heater 5 is used to adjust the steam temperature in the pipe. The heat exchanger 4 has a feed water inlet 41, a drain outlet 42, a steam inlet 43 and a steam outlet 44. The feed water inlet 41 and the drain outlet 42 are connected to a water tank 200. The steam outlet 44 is connected to the heater 5. The steam inlet 43 is connected to the outlet pipe of a valve 21. The desuperheater has two and is respectively installed on the ejector steam pipe and the motive steam pipe. The connection between the outlet pipe of the hot press 100 and the hot press 100 forms an external supply steam outlet 103 of the hot press 100. By cooperating with the heat exchanger 4 and the desuperheater, the pressure and temperature of the motive steam and the ejector steam are flexibly adjusted, so as to simulate various working conditions of the hot press 100, and it is convenient to obtain the design optimization data of the hot press 100 under all working conditions.

[0020] The hot press test system according to an embodiment of the present invention simulates various working conditions of the hot press and enriches the design optimization data of the hot press, and has the advantage of flexible adjustment of the pressure and temperature of the motive steam and the ejector steam in the pipe.

[0021] In some embodiments, as Figure 1 shown, the hot press test system further includes a feed water pump 3. The inlet of the feed water pump 3 is connected to the outlet of the water tank 200, and the outlet of the feed water pump 3 is connected to the feed water inlet 41.

[0022] Specifically, the feed water pump 3 drives the water in the water tank 200 to enter the feed water pump 3 from the water tank outlet 202, enters one side of the heat exchanger 4 from the outlet of the feed water pump 3, exchanges heat with the other side of the heat exchanger 4, and then returns to the water tank inlet 201 to form a heat exchange cycle. The feed water pump 3 improves the heat exchange efficiency of the heat exchanger 4.

[0023] In some embodiments, as Figure 1 shown, the steam outlet 44 is connected to the feed water inlet 51 of the heater. The feed water outlet 52 of the heater is connected to the first ends of the ejector steam pipe and the motive steam pipe. The second end of the motive steam pipe forms a motive steam inlet 101 of the hot press 100.

[0024] Specifically, the heater 5 raises the temperature of the steam at the steam outlet 44 of the heat exchanger 4. The heater feed water outlet 52 is respectively connected to the ejector steam pipeline and the motive steam pipeline. The heater 5 provides ejector steam and motive steam for the hot press 100. The connection points of the ejector steam pipeline and the motive steam pipeline with the hot press 100 respectively form the ejector steam inlet 102 and the motive steam inlet 101 of the hot press 100.

[0025] In some embodiments, as Figure 1 shown, a first flowmeter 9, a first pressure gauge 10, and a first thermometer 8 are connected in series on the ejector steam pipeline, a second pressure gauge 16 and a second thermometer 17 are connected in series on the motive steam pipeline, and a third pressure gauge 18 and a second flowmeter 20 are connected in series on the outlet pipeline.

[0026] Specifically, the first flowmeter 9, the first pressure gauge 10, and the first thermometer 8 on the ejector steam pipeline respectively detect the flow rate, pressure, and temperature parameters of the ejector steam in the ejector steam pipeline. The second pressure gauge 16 and the second thermometer 17 on the motive steam pipeline respectively detect the pressure and temperature parameters of the ejector steam in the motive steam pipeline. The third pressure gauge 18 and the second flowmeter 20 on the outlet pipeline respectively detect the pressure and flow rate of the outlet steam in the outlet pipeline. The first flowmeter 9, the second flowmeter 20, the first pressure gauge 10, the second pressure gauge 16, the third pressure gauge 18, the first thermometer 8, and the second thermometer 17 are used to measure the parameter values of the motive steam, ejector steam, and outlet steam under different working conditions, so as to obtain the performance curve of the hot press 100 under different working conditions, providing data reference for designing a wide-load and high-performance hot press 100.

[0027] In some embodiments, the hot press test system further includes a DCS system 12. The DCS system 12 is electrically connected to the hot press 100, the first pressure gauge 10, the first thermometer 8, the first check valve; the first flowmeter 9; the 10 first pressure gauge 10; 11, the third pressure gauge 18, and the second flowmeter 20 to obtain parameters such as the pressure, temperature, and flow rate of the motive steam and the ejector steam.

[0028] Specifically, based on the parameters such as the pressure, temperature, and flow rate of the motive steam and the ejector steam, the DCS system 12 performs optimal strategy control on the hot press 100 to obtain the optimal performance of the hot press 100. The DCS system 12 also adjusts the hot press 100 according to the flow rate and pressure of the outlet steam to obtain the optimal performance of the hot press 100.

[0029] In some embodiments, a first regulating valve 6, a first check valve, and a first desuperheater 7 are connected in series on the ejector steam pipeline.

[0030] Specifically, the first regulating valve 6 and the first check valve connected in series on the ejector steam pipeline are used to regulate the flow rate of the ejector steam and prevent the reverse flow of the ejector steam, and the first desuperheater 7 is used to reduce the temperature of the ejector steam.

[0031] In some embodiments, a second regulating valve 13, a second check valve 15, and a second desuperheater 14 are connected in series on the motive steam pipeline.

[0032] Specifically, the second regulating valve 13 and the second check valve 15 connected in series on the motive steam pipeline are used to regulate the flow rate of the motive steam and prevent the reverse flow of the motive steam, and the second desuperheater 14 is used to reduce the temperature of the motive steam.

[0033] In some embodiments, a third regulating valve 21 is installed on the outlet pipeline.

[0034] Specifically, the third regulating valve 21 is used to regulate the flow rate of the outlet steam to facilitate controlling the amount of the outlet steam entering the heat exchanger 4.

[0035] In some embodiments, a safety valve 19 is installed on the outlet pipeline.

[0036] Specifically, the safety valve 19 prevents the pressure of the outlet steam in the outlet pipeline from exceeding the safety value, plays a protective role for the hot press 100 and the heat exchanger 4 to avoid damage to the equipment due to excessive steam pressure, and the safety valve 19 plays a protective role for personal safety and equipment operation.

[0037] In some embodiments, the heater 5 is an electric heater 5.

[0038] Thus, the electric heater has high heating efficiency, and the electric heater can increase the temperature of the outlet steam processed by the heat exchanger, which is beneficial to maintaining a stable steam supply.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship 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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0040] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0041] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention may be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0043] In the present invention, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0044] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present invention.

Claims

1. A hot press test system, characterized in that, Comprising: A hot press, the hot press having an ejector steam pipe, a motive steam pipe and an outlet pipe, the ejector steam pipe and the motive steam pipe being connected to a heater for adjusting the steam temperature in the pipes; A heat exchanger having a feed water inlet, a drain outlet, a steam inlet and a steam outlet, the feed water inlet and the drain outlet being connected to a water tank, the steam outlet being connected to the heater, and the steam inlet being connected to the outlet pipe; and A desuperheater with two desuperheaters respectively installed on the ejector steam pipe and the motive steam pipe. A first regulating valve, a first check valve and a first desuperheater are connected in series on the ejector steam pipe. The first regulating valve and the first check valve connected in series on the ejector steam pipe are used to adjust the flow rate of the ejector steam and prevent the reverse flow of the ejector steam. The first desuperheater is used to reduce the temperature of the ejector steam. A second regulating valve, a second check valve and a second desuperheater are connected in series on the motive steam pipe. The second regulating valve and the second check valve connected in series on the motive steam pipe are used to adjust the flow rate of the motive steam and prevent the reverse flow of the motive steam. The second desuperheater is used to reduce the temperature of the motive steam. By the cooperation of the heat exchanger and the desuperheater, the pressure and temperature of the motive steam and the ejector steam are flexibly adjusted to simulate various working conditions of the hot press.

2. The hot press test system according to claim 1, characterized in that The hot press test system further includes a feed water pump, the inlet of the feed water pump being connected to the outlet of the water tank, and the outlet of the feed water pump being connected to the feed water inlet.

3. The hot press test system according to claim 2, wherein The steam outlet is connected to the inlet of the heater, the outlet of the heater is connected to the first ends of the ejector steam pipe and the motive steam pipe, and the second end of the motive steam pipe constitutes the motive steam inlet of the hot press.

4. The hot press test system according to claim 1, characterized in that, A first flow meter, a first pressure gauge and a first thermometer are connected in series on the ejector steam pipe, a second pressure gauge and a second thermometer are connected in series on the motive steam pipe, and a third pressure gauge and a second flow meter are connected in series on the outlet pipe.

5. The hot press test system according to claim 4, characterized in that, The hot press test system further includes a DCS system, the DCS system being electrically connected to the hot press, the first pressure gauge, the first thermometer, the third pressure gauge and the second flow meter to obtain the pressure, temperature and flow rate parameters of the motive steam and the ejector steam.

6. The hot press test system according to claim 1, wherein A third regulating valve is installed on the outlet pipe.

7. The hot press test system according to claim 1, characterized in that, A safety valve is installed on the outlet pipe.

8. The hot press test system according to claim 1, characterized in that, The heater is an electric heater.

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