Hydrogen chloride synthesizer with byproduct high-pressure steam

Abstract

The invention belongs to the technical field of chemical engineering, and particularly relates to a hydrogen chloride synthesizer with byproduct high-pressure steam, the hydrogen chloride synthesizer comprises a pipe body and a burner, the burner is arranged on the lower side of the pipe body and communicated with a fuel container, the pipe body comprises a reaction pipe and a cooling pipe which are distributed from bottom to top and connected through a flange plate, and the reaction pipe is communicated with the cooling pipe. An adjusting mechanism is arranged in the cooling pipe, through the arrangement of the adjusting mechanism, when hydrogen chloride is synthesized and processed, the position state of the spiral barrier plate in the annular channel can be adjusted, so that the state of hydrogen chloride gas in the cooling pipe can be subjected to cooling processing treatment in a targeted manner, and meanwhile, through different media in the adjacent annular channels, the cooling efficiency is improved. The purpose of further improving the heat exchange efficiency and effect can be achieved.

Description

Technical Field

[0001] This invention belongs to the field of chemical technology, specifically relating to a hydrogen chloride synthesis apparatus that produces high-pressure steam as a byproduct. Background Technology

[0002] The synthesis of hydrogen chloride is currently usually carried out by burning chlorine and hydrogen. In order to recover the heat during combustion, water is usually introduced into the combustion chamber for heat recovery. On the one hand, it can be used for steam by-product processing to fully recover heat, and on the other hand, it can help lower the temperature of hydrogen chloride gas, making it more convenient for subsequent condensation and collection.

[0003] Currently, hydrogen chloride gas collection typically employs an internal jacketed system, where hydrogen chloride gas is passed through the jacket while cooling water is simultaneously introduced to cool the gas. However, conventional cooling equipment is not well-suited to the temperature range of hydrogen chloride gas. For instance, when the residual heat temperature of the hydrogen chloride gas is high, the same flow rate of cooling water and gas can easily result in low heat exchange efficiency and poor performance. Summary of the Invention

[0004] The purpose of this invention is to provide a hydrogen chloride synthesis apparatus that produces high-pressure steam as a byproduct, in order to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0006] A hydrogen chloride synthesis apparatus that produces high-pressure steam as a byproduct includes a tube body and a burner. The burner is located on the lower side of the tube body and is connected to a fuel container. The tube body includes reaction tubes and cooling tubes distributed from bottom to top and connected to each other by flanges. The cooling tubes are provided with an adjustment mechanism.

[0007] The cooling pipe has a hollow tubular structure and a safety valve pipe at the upper end. The inner wall of the cooling pipe has several annular channels evenly opened in a ring shape. There is a gap between the upper side of the cooling pipe body and the safety valve pipe.

[0008] The spiral partition plate is a device in the regulating mechanism that controls the flow rate in the ring channel. The spiral partition plate is slidably and sealed in the ring channel and divides the ring channel into two passages, namely a cooling water passage and a condensation passage.

[0009] The adjusting disc is a device in the adjusting mechanism that controls the state of the spiral partition plates. The adjusting disc is rotatably and sealed in the interval and is connected and matched with several spiral partition plates.

[0010] The cooling pipe sidewall is further provided with an outlet ring groove, an inlet ring groove and a collection ring groove from top to bottom. The outlet ring groove and the inlet ring groove are connected to the cooling water passage, and the collection ring groove is connected to the condensation passage.

[0011] The adjusting disc consists of a drive and a driven device. The drive is located on the upper side inside the cooling pipe and is connected to an external transmission device. The driven device is located at intervals and drives several spiral partition plates to adjust through the operation of the drive.

[0012] The transmission device includes a transmission rod, a drive wheel, and a driven ring. The transmission rod is rotatably sealed at the upper end of the cooling pipe. The drive wheel is concentrically connected to the transmission rod and located inside the cooling pipe. The driven ring is rotatably sealed at the interval and is connected to the drive wheel for transmission.

[0013] The driven device includes a return water ring, connecting fins, and a sealing cover. An opening is formed between the outlet water ring groove and the gap. The return water ring is rotatably sealed in the opening. The number of connecting fins and sealing cover matches the number of spiral partition plates. The connecting fins are connected to the return water ring. The sealing cover is connected to the spiral partition plates and is slidably sealed to the end face of the gap. The position of the sealing cover corresponds to the cooling water passage. The driven device has a liquid passage connecting the cooling water passage and the outlet water ring groove.

[0014] The connection point between the cooling water passage and the inlet ring groove, as well as the connection point between the condensation passage and the collecting ring groove, are both located at the bottom of the ring.

[0015] The spiral partition plates and the corresponding inner wall areas of the cooling pipes are all made of steel.

[0016] The present invention has at least the following advantages compared to the prior art:

[0017] By adjusting the position of the spiral baffle plate within the ring channel during hydrogen chloride synthesis, the cooling process can be tailored to the specific state of the hydrogen chloride gas within the cooling pipe. Furthermore, by utilizing different media within adjacent ring channels, the heat exchange efficiency and effectiveness can be further improved. Attached Figure Description

[0018] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of the cooling pipe of the present invention cut open.

[0021] Figure 3 This is a cross-sectional view of the structure of the present invention.

[0022] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0023] Figure 5 This is a schematic diagram of the upper layer of the cooling pipe in this invention.

[0024] Figure 6 This is a schematic diagram of the structure of the present invention with the cooling pipe cut open to expose the water inlet annular groove side.

[0025] Figure 7 This is a schematic diagram of the specific connection structure of the cooling water passage and the condensation passage of the present invention.

[0026] Figure 8 This is a schematic diagram of the spiral partition plate and adjusting disc of the present invention.

[0027] Burner 1, reaction tube 11, cooling tube 12, safety valve tube 13, ring channel 2, spiral baffle plate 3, cooling water passage 31, condensation passage 32, outlet ring groove 4, inlet ring groove 41, collection ring groove 42, transmission rod 5, drive wheel 51, driven ring 52, return water ring 53, connecting fins 54, sealing cover plate 55. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] like Figure 1-8 As shown, a hydrogen chloride synthesis device that produces high-pressure steam as a byproduct includes a tube body and a burner 1. The burner 1 is located on the lower side of the tube body and is connected to a fuel container. The tube body includes a reaction tube 11 and a cooling tube 12 distributed from bottom to top and connected to each other by flanges. The cooling tube 12 is provided with an adjustment mechanism.

[0030] The cooling pipe 12 has a hollow tubular structure and a safety valve pipe 13 at the upper end. The inner wall of the cooling pipe 12 has several annular channels 2 evenly opened in a ring shape. There is a gap between the upper side of the cooling pipe 12 and the safety valve pipe 13.

[0031] Spiral partition plate 3 is a device in the regulating mechanism that controls the flow rate in the ring channel 2. The spiral partition plate 3 is slidably and sealed in the ring channel 2 and divides the ring channel 2 into two passages, namely the cooling water passage 31 and the condensation passage 32.

[0032] The regulating disc is a device in the regulating mechanism that controls the state of the spiral partition plate 3. The regulating disc is rotated and sealed in the interval and connected and matched with several spiral partition plates 3.

[0033] The cooling pipe 12 has an outlet ring groove 4, an inlet ring groove 41 and a collecting ring groove 42 respectively on its side wall from top to bottom. The outlet ring groove 4 and the inlet ring groove 41 are connected to the cooling water passage 31, and the collecting ring groove 42 is connected to the condensation passage 32.

[0034] In the hydrogen chloride synthesis process, hydrogen, chlorine, and combustion-supporting agent are mixed through burner 1 and injected into reaction tube 11 inside the tube body for combustion reaction. The inner wall of reaction tube 11 is provided with a jacket, and there are ring pipes on the upper and lower sides of reaction tube 11. The lower ring pipe is used to input water to generate steam, and the upper ring pipe is used to collect steam. Several small pipes connecting the two ring pipes are opened in the jacket for heat exchange between water and the heat generated by combustion in reaction tube 11, thereby recovering heat and generating steam. In the art, if the by-product steam is usually connected to a flash tank, this is the conventional setting for by-product steam in the art, so no further technical details are described here.

[0035] Next, the gas reacted in the reaction tube 11 continues to rise and enter the cooling tube 12. The water inlet ring groove 41 and the water outlet ring groove 4 in the cooling tube 12 are both connected to the external cooling water circulation device. The connection method can be the liquid path of the liquid storage tank outlet, liquid pump, condenser, water inlet ring groove 41, cooling water passage 31, water outlet ring groove 4, and liquid outlet pipe inlet. The specific cooling water storage device and refrigeration device are not shown in this application, but those skilled in the art can adopt or choose this method using conventional cooling techniques or the foregoing examples. Therefore, it will not be described in detail here.

[0036] When cooling water enters the cooling water passage 31, and the cooling pipe 12 is closed, the safety valve pipe 13 remains closed under stable pressure, the reaction gas will enter the upper layer of the cooling pipe 12 and enter the condensation passage 32. The condensation passage 32 extends downward and connects with the water collection ring trough 42. As the reaction gas, i.e., hydrogen chloride, continues to sink, the hydrogen chloride gas will exchange heat with the cooling water in the adjacent cooling water passage 31 through the spiral baffle plate 3 and the inner wall of the passage, thereby cooling and condensing into liquid, and finally collecting in the water collection ring trough 42 and then being discharged.

[0037] During the condensation process of hydrogen chloride gas, considering factors such as gas pressure within the cooling pipe 12, combustion efficiency, cooling water circulation efficiency, and refrigeration efficiency, the position of the spiral baffle plate 3 within the annular channel 2 can be adjusted using an adjusting disc. The monitoring can employ known technologies such as temperature sensors and pressure sensors. In some embodiments, when it is necessary to increase the cooling water flow rate to enhance heat exchange efficiency and effect, the spiral baffle plate 3 can be adjusted clockwise within the annular channel 2 using the adjusting disc. This expands the inner diameter of the cooling water passage 31, while increasing the condensation passage... The inner diameter of the cooling water passage 32 is reduced, which reduces the amount of gas entering the condensation passage 32. At the same time, the cooling water can have a larger volume of heat exchange medium for heat exchange, thus meeting the needs of situations where the hydrogen chloride gas temperature is high but the overall gas pressure is medium or low. Conversely, when the overall hydrogen chloride gas temperature is low, in order to reduce the energy consumption of the cooling water cooling cycle, the inner diameter of the cooling water passage 31 can be reduced and the inner diameter of the condensation passage 32 can be increased. This allows for targeted cooling treatment of the hydrogen chloride gas state in different processing stages or links, further achieving the effects of energy saving, consumption reduction, and improved production efficiency and quality.

[0038] Furthermore, since the ring channel 2 is matched with the spiral baffle plate 3, the ring channel 2 is opened from top to bottom in a spiral structure inside the cooling pipe 12. This can greatly increase the heat exchange time between the cooling water and the hydrogen chloride gas, thereby further improving the heat exchange effect and increasing the condensation rate.

[0039] The regulating disc consists of a drive and a driven device. The drive is located on the upper side inside the cooling pipe 12 and is connected to the external drive device. The driven device is located in the interval and drives several spiral partition plates 3 to adjust through the operation of the drive.

[0040] The transmission device includes a transmission rod 5, a drive wheel 51, and a driven ring 52. The transmission rod 5 is rotatably sealed at the upper end of the cooling pipe 12. The drive wheel 51 is concentrically connected to the transmission rod 5 and located inside the cooling pipe 12. The driven ring 52 is rotatably sealed at the interval and is connected to the drive wheel 51 in a transmission connection.

[0041] The driven device includes a return water ring 53, connecting fins 54, and a sealing cover plate 55. An opening is formed between the outlet water ring groove 4 and the spacer. The return water ring 53 is rotatably sealed in the opening. The number of connecting fins 54 and sealing cover plates 55 matches the number of spiral partition plates 3. The connecting fins 54 are connected to the return water ring 53, and the sealing cover plate 55 is connected to the spiral partition plate 3 and is slidably sealed to the end face of the spacer. The position of the sealing cover plate 55 corresponds to the cooling water passage 31. The driven device has a liquid passage connecting the cooling water passage 31 and the outlet water ring groove 4.

[0042] When the spiral partition plate 3 needs to be adjusted, the transmission rod 5 is driven by an external transmission device such as a motor or a motor pulley transmission structure. The position of the spiral partition plate 3 is adjusted as needed, thereby adjusting the driving direction of the transmission rod 5. When the transmission rod 5 rotates, it will drive the driven ring 52 through the drive wheel 51. Several connecting fins 54 are connected to the driven ring 52. Therefore, the rotation of the driven ring 52 will drive the entire driven device to rotate, thereby adjusting the position of the spiral partition plate 3 through the sealing cover plate 55 on the driven device.

[0043] The return water ring 53, together with the connecting fins 54 and the sealing cover plate 55, can meet the flow requirements of the cooling water circuit. The positional changes of the return water ring 53 and the spiral baffle plate 3 can achieve multi-position liquid circuit connection through the liquid circuit on the connecting fins 54 and the sealing cover plate 55. The sealing cover plate 55 is used to close the cooling water passage 31, forming a closed water circuit to prevent cooling water from entering the cooling pipe 12.

[0044] The connection point between the cooling water passage 31 and the inlet ring groove 41, and the connection point between the condensation passage 32 and the collecting ring groove 42 are both located at the bottom of the ring 2.

[0045] This facilitates the complete and continuous transport of cooling water and meets the requirements for the collection of hydrogen chloride liquid, while also being more adaptable to the positional adjustments of the spiral baffle plate 3.

[0046] The spiral baffle plate 3 and the cooling pipe 12 are both made of steel in the inner wall area of ​​the corresponding ring channel 2.

[0047] This facilitates heat exchange.

[0048] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A hydrogen chloride synthesis apparatus that produces high-pressure steam as a byproduct, comprising a tube body and a burner, wherein the burner is located below the tube body and connected to a fuel container, and the tube body comprises reaction tubes and cooling tubes distributed from bottom to top and connected to each other by flanges, characterized in that: The cooling pipe is equipped with an adjustment mechanism; The cooling pipe has a hollow tubular structure and a safety valve pipe at the upper end. The inner wall of the cooling pipe has several annular channels evenly opened in a ring shape. There is a gap between the upper side of the cooling pipe body and the safety valve pipe. The spiral partition plate is a device in the regulating mechanism that controls the flow rate in the ring channel. The spiral partition plate is slidably and sealed in the ring channel and divides the ring channel into two passages, namely a cooling water passage and a condensation passage. The adjusting disc is a device in the adjusting mechanism that controls the state of the spiral partition plates. The adjusting disc is rotatably and sealed in the interval and is connected and matched with several spiral partition plates. The cooling pipe sidewall is further provided with an outlet ring groove, an inlet ring groove and a collection ring groove from top to bottom. The outlet ring groove and the inlet ring groove are connected to the cooling water passage, and the collection ring groove is connected to the condensation passage.

2. The hydrogen chloride synthesis apparatus that produces high-pressure steam as a byproduct according to claim 1, characterized in that: The adjusting disc consists of a drive and a driven device. The drive is located on the upper side inside the cooling pipe and is connected to an external transmission device. The driven device is located at intervals and drives several spiral partition plates to adjust through the operation of the drive.

3. The hydrogen chloride synthesis apparatus that produces high-pressure steam as a byproduct according to claim 2, characterized in that: The transmission device includes a transmission rod, a drive wheel, and a driven ring. The transmission rod is rotatably sealed at the upper end of the cooling pipe. The drive wheel is concentrically connected to the transmission rod and located inside the cooling pipe. The driven ring is rotatably sealed at the interval and is connected to the drive wheel for transmission.

4. A hydrogen chloride synthesis apparatus that produces high-pressure steam as a byproduct according to claim 3, characterized in that: The driven device includes a return water ring, connecting fins, and a sealing cover. An opening is formed between the outlet water ring groove and the gap. The return water ring is rotatably sealed in the opening. The number of connecting fins and sealing cover matches the number of spiral partition plates. The connecting fins are connected to the return water ring. The sealing cover is connected to the spiral partition plates and is slidably sealed to the end face of the gap. The position of the sealing cover corresponds to the cooling water passage. The driven device has a liquid passage connecting the cooling water passage and the outlet water ring groove.

5. A hydrogen chloride synthesis apparatus that produces high-pressure steam as a byproduct according to claim 4, characterized in that: The connection point between the cooling water passage and the inlet ring groove, as well as the connection point between the condensation passage and the collecting ring groove, are both located at the bottom of the ring.

6. A hydrogen chloride synthesis apparatus that produces high-pressure steam as a byproduct according to claim 5, characterized in that: The spiral partition plates and the corresponding inner wall areas of the cooling pipes are all made of steel.

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